[PATCH dwarves 0/3] Check DW_OP_[GNU_]entry_value for possible parameter matching

[PATCH dwarves 0/3] Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

Currently, pahole relies on dwarf to find whether a particular func
has its parameter mismatched with standard or optimized away.
In both these cases, the func will not be put in BTF and this
will prevent fentry/fexit tracing for these functions.

The current parameter checking focuses on the first location/expression
to match intended parameter register. But in some cases, the first
location/expression does not have expected matching information,
but further location like DW_OP_[GNU_]entry_value can provide
information which matches the expected parameter register.
Patch #3 provides details how this will work.
Patches #1 and #2 have some preparation work done for patch #3.

Yonghong Song (3):
  dwarf_loader: Refactor function parameter__new()
  dwarf_loader: Refactor function check_dwarf_locations()
  dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter
    matching

 dwarf_loader.c | 134 +++++++++++++++++++++++++++++++++++++------------
 1 file changed, 102 insertions(+), 32 deletions(-)

-- 
2.43.5

[PATCH dwarves 1/3] dwarf_loader: Refactor function parameter__new()

[Yonghong Song]

The dwarf location checking part of function parameter__new() is refactored
to another function. The current dwarf location checking only for
the first expression of the first location. One later patch may traverse
all expressions of all locations, so refactoring makes later change easier.

No functional change.

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
---
 dwarf_loader.c | 77 ++++++++++++++++++++++++++++----------------------
 1 file changed, 44 insertions(+), 33 deletions(-)

diff --git a/dwarf_loader.c b/dwarf_loader.c
index ec8641b..4bb9096 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -1157,16 +1157,56 @@ static struct template_parameter_pack *template_parameter_pack__new(Dwarf_Die *d
 	return pack;
 }
 
+static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
+				  struct cu *cu, int param_idx)
+{
+	Dwarf_Addr base, start, end;
+	struct location loc;
+
+	/* dwarf_getlocations() handles location lists; here we are
+	 * only interested in the first expr.
+	 */
+	if (parm->has_loc &&
+#if _ELFUTILS_PREREQ(0, 157)
+	    dwarf_getlocations(attr, 0, &base, &start, &end,
+			       &loc.expr, &loc.exprlen) > 0 &&
+#else
+	    dwarf_getlocation(attr, &loc.expr, &loc.exprlen) == 0 &&
+#endif
+		loc.exprlen != 0) {
+		int expected_reg = cu->register_params[param_idx];
+		Dwarf_Op *expr = loc.expr;
+
+		switch (expr->atom) {
+		case DW_OP_reg0 ... DW_OP_reg31:
+			/* mark parameters that use an unexpected
+			 * register to hold a parameter; these will
+			 * be problematic for users of BTF as they
+			 * violate expectations about register
+			 * contents.
+			 */
+			if (expected_reg >= 0 && expected_reg != expr->atom)
+				parm->unexpected_reg = 1;
+			break;
+		default:
+			parm->optimized = 1;
+			break;
+		}
+
+		return true;
+	}
+
+	return false;
+}
+
 static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
 					struct conf_load *conf, int param_idx)
 {
 	struct parameter *parm = tag__alloc(cu, sizeof(*parm));
 
 	if (parm != NULL) {
-		Dwarf_Addr base, start, end;
 		bool has_const_value;
 		Dwarf_Attribute attr;
-		struct location loc;
 
 		tag__init(&parm->tag, cu, die);
 		parm->name = attr_string(die, DW_AT_name, conf);
@@ -1208,38 +1248,9 @@ static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
 		 */
 		has_const_value = dwarf_attr(die, DW_AT_const_value, &attr) != NULL;
 		parm->has_loc = dwarf_attr(die, DW_AT_location, &attr) != NULL;
-		/* dwarf_getlocations() handles location lists; here we are
-		 * only interested in the first expr.
-		 */
-		if (parm->has_loc &&
-#if _ELFUTILS_PREREQ(0, 157)
-		    dwarf_getlocations(&attr, 0, &base, &start, &end,
-				       &loc.expr, &loc.exprlen) > 0 &&
-#else
-		    dwarf_getlocation(&attr, &loc.expr, &loc.exprlen) == 0 &&
-#endif
-			loc.exprlen != 0) {
-			int expected_reg = cu->register_params[param_idx];
-			Dwarf_Op *expr = loc.expr;
-
-			switch (expr->atom) {
-			case DW_OP_reg0 ... DW_OP_reg31:
-				/* mark parameters that use an unexpected
-				 * register to hold a parameter; these will
-				 * be problematic for users of BTF as they
-				 * violate expectations about register
-				 * contents.
-				 */
-				if (expected_reg >= 0 && expected_reg != expr->atom)
-					parm->unexpected_reg = 1;
-				break;
-			default:
-				parm->optimized = 1;
-				break;
-			}
-		} else if (has_const_value) {
+
+		if (!check_dwarf_locations(&attr, parm, cu, param_idx) && has_const_value)
 			parm->optimized = 1;
-		}
 	}
 
 	return parm;
-- 
2.43.5

Re: [PATCH dwarves 1/3] dwarf_loader: Refactor function parameter__new()

[Alan Maguire]

On 08/11/2024 18:05, Yonghong Song wrote:
> The dwarf location checking part of function parameter__new() is refactored
> to another function. The current dwarf location checking only for
> the first expression of the first location. One later patch may traverse
> all expressions of all locations, so refactoring makes later change easier.
> 
> No functional change.
> 
> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
> ---
>  dwarf_loader.c | 77 ++++++++++++++++++++++++++++----------------------
>  1 file changed, 44 insertions(+), 33 deletions(-)
> 
> diff --git a/dwarf_loader.c b/dwarf_loader.c
> index ec8641b..4bb9096 100644
> --- a/dwarf_loader.c
> +++ b/dwarf_loader.c
> @@ -1157,16 +1157,56 @@ static struct template_parameter_pack *template_parameter_pack__new(Dwarf_Die *d
>  	return pack;
>  }
>  
> +static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
> +				  struct cu *cu, int param_idx)

Nit: I think this should be renamed to something like
parameter__locations() in keeping with existing naming scheme.
Could also include the parm->has_loc assignment there instead
of keeping it in paramter__new().


> +{
> +	Dwarf_Addr base, start, end;
> +	struct location loc;
> +
> +	/* dwarf_getlocations() handles location lists; here we are
> +	 * only interested in the first expr.
> +	 */
> +	if (parm->has_loc &&
> +#if _ELFUTILS_PREREQ(0, 157)
> +	    dwarf_getlocations(attr, 0, &base, &start, &end,
> +			       &loc.expr, &loc.exprlen) > 0 &&
> +#else
> +	    dwarf_getlocation(attr, &loc.expr, &loc.exprlen) == 0 &&
> +#endif
> +		loc.exprlen != 0) {
> +		int expected_reg = cu->register_params[param_idx];
> +		Dwarf_Op *expr = loc.expr;
> +
> +		switch (expr->atom) {
> +		case DW_OP_reg0 ... DW_OP_reg31:
> +			/* mark parameters that use an unexpected
> +			 * register to hold a parameter; these will
> +			 * be problematic for users of BTF as they
> +			 * violate expectations about register
> +			 * contents.
> +			 */
> +			if (expected_reg >= 0 && expected_reg != expr->atom)
> +				parm->unexpected_reg = 1;
> +			break;
> +		default:
> +			parm->optimized = 1;
> +			break;
> +		}
> +
> +		return true;
> +	}
> +
> +	return false;
> +}
> +
>  static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
>  					struct conf_load *conf, int param_idx)
>  {
>  	struct parameter *parm = tag__alloc(cu, sizeof(*parm));
>  
>  	if (parm != NULL) {
> -		Dwarf_Addr base, start, end;
>  		bool has_const_value;
>  		Dwarf_Attribute attr;
> -		struct location loc;
>  
>  		tag__init(&parm->tag, cu, die);
>  		parm->name = attr_string(die, DW_AT_name, conf);
> @@ -1208,38 +1248,9 @@ static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
>  		 */
>  		has_const_value = dwarf_attr(die, DW_AT_const_value, &attr) != NULL;
>  		parm->has_loc = dwarf_attr(die, DW_AT_location, &attr) != NULL;
> -		/* dwarf_getlocations() handles location lists; here we are
> -		 * only interested in the first expr.
> -		 */
> -		if (parm->has_loc &&
> -#if _ELFUTILS_PREREQ(0, 157)
> -		    dwarf_getlocations(&attr, 0, &base, &start, &end,
> -				       &loc.expr, &loc.exprlen) > 0 &&
> -#else
> -		    dwarf_getlocation(&attr, &loc.expr, &loc.exprlen) == 0 &&
> -#endif
> -			loc.exprlen != 0) {
> -			int expected_reg = cu->register_params[param_idx];
> -			Dwarf_Op *expr = loc.expr;
> -
> -			switch (expr->atom) {
> -			case DW_OP_reg0 ... DW_OP_reg31:
> -				/* mark parameters that use an unexpected
> -				 * register to hold a parameter; these will
> -				 * be problematic for users of BTF as they
> -				 * violate expectations about register
> -				 * contents.
> -				 */
> -				if (expected_reg >= 0 && expected_reg != expr->atom)
> -					parm->unexpected_reg = 1;
> -				break;
> -			default:
> -				parm->optimized = 1;
> -				break;
> -			}
> -		} else if (has_const_value) {
> +
> +		if (!check_dwarf_locations(&attr, parm, cu, param_idx) && has_const_value)

I think it might be easier to follow the logic if we moved the const
check alongside the location checks in the separate location check
function. That way all our optimization-related checking happens in one
place.


>  			parm->optimized = 1;
> -		}
>  	}
>  
>  	return parm;

[PATCH dwarves 2/3] dwarf_loader: Refactor function check_dwarf_locations()

[Yonghong Song]

The newly-added function check_dwarf_locations() supports two variants
of implementations: elfutils "version < 157" and "version >= 157".
The "version < 157" supports one single location (dwarf_getlocation())
and "version >= 157" supports location lists (dwarf_getlocations()).

Currently, even for dwarf_getlocations(), only the first location
and its first expression is checked. In the subsequent patch, all
locations and all expressions may be changed. So this patch refactors
the code such that two different implementations (based on elfutils
versions) are clearly separated. This makes subsequent change cleaner.

No functional change.

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
---
 dwarf_loader.c | 40 +++++++++++++++++++++++++++++++++-------
 1 file changed, 33 insertions(+), 7 deletions(-)

diff --git a/dwarf_loader.c b/dwarf_loader.c
index 4bb9096..e0b8c11 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -1160,22 +1160,47 @@ static struct template_parameter_pack *template_parameter_pack__new(Dwarf_Die *d
 static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
 				  struct cu *cu, int param_idx)
 {
+	int expected_reg = cu->register_params[param_idx];
 	Dwarf_Addr base, start, end;
 	struct location loc;
+	Dwarf_Op *expr;
 
+	if (!parm->has_loc)
+		return false;
+
+#if _ELFUTILS_PREREQ(0, 157)
 	/* dwarf_getlocations() handles location lists; here we are
 	 * only interested in the first expr.
 	 */
-	if (parm->has_loc &&
-#if _ELFUTILS_PREREQ(0, 157)
-	    dwarf_getlocations(attr, 0, &base, &start, &end,
+	if (dwarf_getlocations(attr, 0, &base, &start, &end,
 			       &loc.expr, &loc.exprlen) > 0 &&
+		loc.exprlen != 0) {
+		expr = loc.expr;
+
+		switch (expr->atom) {
+		case DW_OP_reg0 ... DW_OP_reg31:
+			/* mark parameters that use an unexpected
+			 * register to hold a parameter; these will
+			 * be problematic for users of BTF as they
+			 * violate expectations about register
+			 * contents.
+			 */
+			if (expected_reg >= 0 && expected_reg != expr->atom)
+				parm->unexpected_reg = 1;
+			break;
+		default:
+			parm->optimized = 1;
+			break;
+		}
+
+		return true;
+	}
+
+	return false;
 #else
-	    dwarf_getlocation(attr, &loc.expr, &loc.exprlen) == 0 &&
-#endif
+	if (dwarf_getlocation(attr, &loc.expr, &loc.exprlen) == 0 &&
 		loc.exprlen != 0) {
-		int expected_reg = cu->register_params[param_idx];
-		Dwarf_Op *expr = loc.expr;
+		expr = loc.expr;
 
 		switch (expr->atom) {
 		case DW_OP_reg0 ... DW_OP_reg31:
@@ -1197,6 +1222,7 @@ static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
 	}
 
 	return false;
+#endif
 }
 
 static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
-- 
2.43.5

[PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

Song Liu reported that a kernel func (perf_event_read()) cannot be traced
in certain situations since the func is not in vmlinux bTF. This happens
in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.

The perf_event_read() signature in kernel (kernel/events/core.c):
   static int perf_event_read(struct perf_event *event, bool group)

Adding '-V' to pahole command line, and the following error msg can be found:
   skipping addition of 'perf_event_read'(perf_event_read) due to unexpected register used for parameter

Eventually the error message is attributed to the setting
(parm->unexpected_reg = 1) in parameter__new() function.

The following is the dwarf representation for perf_event_read():
    0x0334c034:   DW_TAG_subprogram
                DW_AT_low_pc    (0xffffffff812c6110)
                DW_AT_high_pc   (0xffffffff812c640a)
                DW_AT_frame_base        (DW_OP_reg7 RSP)
                DW_AT_GNU_all_call_sites        (true)
                DW_AT_name      ("perf_event_read")
                DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
                DW_AT_decl_line (4641)
                DW_AT_prototyped        (true)
                DW_AT_type      (0x03324f6a "int")
    0x0334c04e:     DW_TAG_formal_parameter
                  DW_AT_location        (0x007de9fd:
                     [0xffffffff812c6115, 0xffffffff812c6141): DW_OP_reg5 RDI
                     [0xffffffff812c6141, 0xffffffff812c6323): DW_OP_reg14 R14
                     [0xffffffff812c6323, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
                     [0xffffffff812c63fe, 0xffffffff812c6405): DW_OP_reg14 R14
                     [0xffffffff812c6405, 0xffffffff812c640a): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
                  DW_AT_name    ("event")
                  DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
                  DW_AT_decl_line       (4641)
                  DW_AT_type    (0x0333aac2 "perf_event *")
    0x0334c05e:     DW_TAG_formal_parameter
                  DW_AT_location        (0x007dea82:
                     [0xffffffff812c6137, 0xffffffff812c63f2): DW_OP_reg12 R12
                     [0xffffffff812c63f2, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
                     [0xffffffff812c63fe, 0xffffffff812c640a): DW_OP_reg12 R12)
                  DW_AT_name    ("group")
                  DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
                  DW_AT_decl_line       (4641)
                  DW_AT_type    (0x03327059 "bool")

By inspecting the binary, the second argument ("bool group") is used
in the function. The following are the disasm code:
    ffffffff812c6110 <perf_event_read>:
    ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
    ffffffff812c6115: 55                    pushq   %rbp
    ffffffff812c6116: 41 57                 pushq   %r15
    ffffffff812c6118: 41 56                 pushq   %r14
    ffffffff812c611a: 41 55                 pushq   %r13
    ffffffff812c611c: 41 54                 pushq   %r12
    ffffffff812c611e: 53                    pushq   %rbx
    ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
    ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
    <=========== NOTE that here '%esi' is used and moved to '%r12d'.
    ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
    ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40, %rax
    ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
    ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
    ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
    ffffffff812c613f: 75 3f                 jne     0xffffffff812c6180 <perf_event_read+0x70>
    ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:(%rax,%rax)
    ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
    ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
    ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
    ffffffff812c615a: e8 c1 a0 d7 00        callq   0xffffffff82040220 <_raw_spin_lock_irqsave>
    ffffffff812c615f: 49 89 c7              movq    %rax, %r15
    ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
    ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
    ffffffff812c616b: 0f 84 9a 00 00 00     je      0xffffffff812c620b <perf_event_read+0xfb>
    ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
    ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
    <=========== NOTE: %rsi is overwritten
    ......
    ffffffff812c63f0: 41 5c                 popq    %r12
    <============ POP r12
    ffffffff812c63f2: 41 5d                 popq    %r13
    ffffffff812c63f4: 41 5e                 popq    %r14
    ffffffff812c63f6: 41 5f                 popq    %r15
    ffffffff812c63f8: 5d                    popq    %rbp
    ffffffff812c63f9: e9 e2 a8 d7 00        jmp     0xffffffff82040ce0 <__x86_return_thunk>
    ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
    ffffffff812c6400: e9 be fe ff ff        jmp     0xffffffff812c62c3 <perf_event_read+0x1b3>

It is not clear why dwarf didn't encode %rsi in locations. But
DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
the entry of perf_event_read(). So this patch tries to search
DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
the expected parameter register matchs the register in
DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
is not optimized.

For one of internal 6.11 kernel, there are 62498 functions in BTF and
perf_event_read() is not there. With this patch, there are 61552 functions
in BTF and perf_event_read() is included.

Reported-by: Song Liu <song@kernel.org>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
---
 dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
 1 file changed, 57 insertions(+), 24 deletions(-)

diff --git a/dwarf_loader.c b/dwarf_loader.c
index e0b8c11..1fe44bc 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -1169,34 +1169,67 @@ static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
 		return false;
 
 #if _ELFUTILS_PREREQ(0, 157)
-	/* dwarf_getlocations() handles location lists; here we are
-	 * only interested in the first expr.
-	 */
-	if (dwarf_getlocations(attr, 0, &base, &start, &end,
-			       &loc.expr, &loc.exprlen) > 0 &&
-		loc.exprlen != 0) {
-		expr = loc.expr;
-
-		switch (expr->atom) {
-		case DW_OP_reg0 ... DW_OP_reg31:
-			/* mark parameters that use an unexpected
-			 * register to hold a parameter; these will
-			 * be problematic for users of BTF as they
-			 * violate expectations about register
-			 * contents.
+	bool reg_matched = false, reg_unmatched = false, first_expr_reg = false, ret = false;
+	ptrdiff_t offset = 0;
+	int loc_num = -1;
+
+	while ((offset = dwarf_getlocations(attr, offset, &base, &start, &end, &loc.expr, &loc.exprlen)) > 0 &&
+	       loc.exprlen != 0) {
+		ret = true;
+		loc_num++;
+
+		for (int i = 0; i < loc.exprlen; i++) {
+			Dwarf_Attribute entry_attr;
+			Dwarf_Op *entry_ops;
+			size_t entry_len;
+
+			expr = &loc.expr[i];
+			switch (expr->atom) {
+			case DW_OP_reg0 ... DW_OP_reg31:
+				/* first location, first expression */
+				if (loc_num == 0 && i == 0) {
+					if (expected_reg >= 0) {
+						if (expected_reg == expr->atom) {
+							reg_matched = true;
+							return true;
+						} else {
+							reg_unmatched = true;
+						}
+					}
+					first_expr_reg = true;
+				}
+				break;
+			/* For the following dwarf entry (arch x86_64) in parameter locations:
+			 *    DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
+			 * RSI register should be available at the entry of the program.
 			 */
-			if (expected_reg >= 0 && expected_reg != expr->atom)
-				parm->unexpected_reg = 1;
-			break;
-		default:
-			parm->optimized = 1;
-			break;
+			case DW_OP_entry_value:
+			case DW_OP_GNU_entry_value:
+				if (reg_matched)
+					break;
+				if (dwarf_getlocation_attr (attr, expr, &entry_attr) != 0)
+					break;
+				if (dwarf_getlocation (&entry_attr, &entry_ops, &entry_len) != 0)
+					break;
+				if (entry_len != 1)
+					break;
+				if (expected_reg >= 0 && expected_reg == entry_ops->atom) {
+					reg_matched = true;
+					return true;
+				}
+				break;
+			default:
+				break;
+			}
 		}
-
-		return true;
 	}
 
-	return false;
+	if (reg_unmatched)
+		parm->unexpected_reg = 1;
+	else if (ret && !first_expr_reg)
+		parm->optimized = 1;
+
+	return ret;
 #else
 	if (dwarf_getlocation(attr, &loc.expr, &loc.exprlen) == 0 &&
 		loc.exprlen != 0) {
-- 
2.43.5

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Eduard Zingerman]

On Fri, 2024-11-08 at 10:05 -0800, Yonghong Song wrote:

[...]

> For one of internal 6.11 kernel, there are 62498 functions in BTF and
> perf_event_read() is not there. With this patch, there are 61552 functions
> in BTF and perf_event_read() is included.

Hi Yonghong,

I checked this patch using my local kernel build and do see a
difference in generated funcs: 47756 vs 47721 funcs with and without.
Looking at DWARF for the newly added functions, the do indeed have
DW_OP_entry_value(expected_reg) in their list of locations.

> 
> Reported-by: Song Liu <song@kernel.org>
> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
> ---
>  dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
>  1 file changed, 57 insertions(+), 24 deletions(-)
> 
> diff --git a/dwarf_loader.c b/dwarf_loader.c
> index e0b8c11..1fe44bc 100644
> --- a/dwarf_loader.c
> +++ b/dwarf_loader.c
> @@ -1169,34 +1169,67 @@ static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
>  		return false;
>  
>  #if _ELFUTILS_PREREQ(0, 157)
> -	/* dwarf_getlocations() handles location lists; here we are
> -	 * only interested in the first expr.
> -	 */
> -	if (dwarf_getlocations(attr, 0, &base, &start, &end,
> -			       &loc.expr, &loc.exprlen) > 0 &&
> -		loc.exprlen != 0) {
> -		expr = loc.expr;
> -
> -		switch (expr->atom) {
> -		case DW_OP_reg0 ... DW_OP_reg31:
> -			/* mark parameters that use an unexpected
> -			 * register to hold a parameter; these will
> -			 * be problematic for users of BTF as they
> -			 * violate expectations about register
> -			 * contents.
> +	bool reg_matched = false, reg_unmatched = false, first_expr_reg = false, ret = false;
> +	ptrdiff_t offset = 0;
> +	int loc_num = -1;
> +
> +	while ((offset = dwarf_getlocations(attr, offset, &base, &start, &end, &loc.expr, &loc.exprlen)) > 0 &&
> +	       loc.exprlen != 0) {
> +		ret = true;
> +		loc_num++;
> +
> +		for (int i = 0; i < loc.exprlen; i++) {

I'm not sure if you need to iterate every expression in the list.
The list is a stack program, so each expression is a command.

> +			Dwarf_Attribute entry_attr;
> +			Dwarf_Op *entry_ops;
> +			size_t entry_len;
> +
> +			expr = &loc.expr[i];
> +			switch (expr->atom) {
> +			case DW_OP_reg0 ... DW_OP_reg31:
> +				/* first location, first expression */
> +				if (loc_num == 0 && i == 0) {
> +					if (expected_reg >= 0) {
> +						if (expected_reg == expr->atom) {
> +							reg_matched = true;

reg_matched is never really used in conditionals, as everywhere it is
set to 'true' the 'return true' follows.

[...]

> +	if (reg_unmatched)
> +		parm->unexpected_reg = 1;
> +	else if (ret && !first_expr_reg)
> +		parm->optimized = 1;

It is a bit unfortunate, that parm->optimized is now set in two functions.
What do you think about the simplification as at the end of this email?

Also, it appears there is some bug either in pahole or in libdw's
implementation of dwarf_getlocation(). When I try both your patch-set
and my variant there is a segfault once in a while:

  $ for i in $(seq 1 100); \
    do echo "---> $i"; \
       pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/dev/null vmlinux ; \
    done
  ---> 1
  ...
  ---> 71
  Segmentation fault (core dumped)
  ...

The segfault happens only when -j (multiple threads) is passed.
If pahole is built with sanitizers
(passing -DCMAKE_C_FLAGS="-fsanitize=undefined,address")
the stack trace looks as follows:

AddressSanitizer:DEADLYSIGNAL
=================================================================
==2360650==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x7f20bcb29200 bp 0x7f208f7fc110 sp 0x7f208f7fc0b8 T18)
==2360650==The signal is caused by a READ memory access.
==2360650==Hint: address points to the zero page.
    #0 0x7f20bcb29200 in maybe_split_for_insert /usr/src/debug/glibc-2.39-22.fc40.x86_64/misc/tsearch.c:228
    #1 0x7f20bcb29465 in __GI___tsearch /usr/src/debug/glibc-2.39-22.fc40.x86_64/misc/tsearch.c:358
    #2 0x7f20bcb29465 in __GI___tsearch /usr/src/debug/glibc-2.39-22.fc40.x86_64/misc/tsearch.c:290
    #3 0x7f20bd489a51 in tsearch.part.0 (/lib64/libasan.so.8+0x89a51) (BuildId: a4ad7eb954b390cf00f07fa10952988a41d9fc7a)
    #4 0x7f20bdb07601 in __libdw_intern_expression (/lib64/libdw.so.1+0x35601) (BuildId: b06d0f436023c584e2d618f94f530d9e22671078)
    #5 0x7f20bdb09c70 in dwarf_getlocation (/lib64/libdw.so.1+0x37c70) (BuildId: b06d0f436023c584e2d618f94f530d9e22671078)
    #6 0x4912c4 in parameter__new (/home/eddy/work/dwarves-fork/build/pahole+0x4912c4) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
    #7 0x495bfa in die__process_function (/home/eddy/work/dwarves-fork/build/pahole+0x495bfa) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
    #8 0x498671 in __die__process_tag (/home/eddy/work/dwarves-fork/build/pahole+0x498671) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
    #9 0x49c692 in die__process_unit (/home/eddy/work/dwarves-fork/build/pahole+0x49c692) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
    #10 0x49cb5f in die__process (/home/eddy/work/dwarves-fork/build/pahole+0x49cb5f) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
    #11 0x4a3767 in dwarf_cus__process_cu (/home/eddy/work/dwarves-fork/build/pahole+0x4a3767) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
    #12 0x4a3f8f in dwarf_cus__process_cu_thread (/home/eddy/work/dwarves-fork/build/pahole+0x4a3f8f) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
    #13 0x7f20bd45df95 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5df95) (BuildId: a4ad7eb954b390cf00f07fa10952988a41d9fc7a)
    #14 0x7f20bcaa66d6 in start_thread /usr/src/debug/glibc-2.39-22.fc40.x86_64/nptl/pthread_create.c:447
    #15 0x7f20bcb2a60b in clone3 ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

---

diff --git a/dwarf_loader.c b/dwarf_loader.c
index ec8641b..c5c2298 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -1157,16 +1157,83 @@ static struct template_parameter_pack *template_parameter_pack__new(Dwarf_Die *d
 	return pack;
 }
 
+static ptrdiff_t __dwarf_getlocations(Dwarf_Attribute *attr,
+				      ptrdiff_t offset, Dwarf_Addr *basep,
+				      Dwarf_Addr *startp, Dwarf_Addr *endp,
+				      Dwarf_Op **expr, size_t *exprlen)
+{
+#if _ELFUTILS_PREREQ(0, 157)
+	return dwarf_getlocations(attr, offset, basep, startp, endp, expr, exprlen);
+#else
+	int err;
+
+	if (offset)
+		return 0;
+
+	err = dwarf_getlocation(attr, expr, exprlen);
+	return err < 0 ? err : 1;
+#endif
+}
+
+/* For DW_AT_location 'attr':
+ * - if first location is DW_OP_regXX with expected number, returns the register;
+ * - if location DW_OP_entry_value(DW_OP_regXX) is in the list, returns the register;
+ * - if first location is DW_OP_regXX, returns the register;
+ * - otherwise returns -1.
+ */
+static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
+{
+	Dwarf_Op *expr, *entry_ops, *first_expr = NULL;
+	Dwarf_Addr base, start, end;
+	Dwarf_Attribute entry_attr;
+	size_t exprlen, entry_len;
+	ptrdiff_t offset = 0;
+        int loc_num = -1;
+
+        while ((offset = __dwarf_getlocations(attr, offset, &base, &start, &end, &expr, &exprlen)) > 0) {
+		loc_num++;
+
+		/* Convert expression list (XX DW_OP_stack_value) -> (XX).
+		 * DW_OP_stack_value instructs interpreter to pop current value from
+		 * DWARF expression evaluation stack, and thus is not important here.
+		 */
+		if (exprlen > 1 && expr[exprlen - 1].atom == DW_OP_stack_value)
+			exprlen--;
+
+		if (exprlen != 1)
+			continue;
+
+		switch (expr->atom) {
+		/* match DW_OP_regXX at first location */
+		case DW_OP_reg0 ... DW_OP_reg31:
+			if (loc_num == 0) {
+				if(expr->atom == expected_reg)
+					return expr->atom;
+				first_expr = expr;
+			}
+		/* match DW_OP_entry_value(DW_OP_regXX) at any location */
+		case DW_OP_entry_value:
+		case DW_OP_GNU_entry_value:
+			if (dwarf_getlocation_attr (attr, expr, &entry_attr) == 0 &&
+			    dwarf_getlocation (&entry_attr, &entry_ops, &entry_len) == 0 &&
+			    entry_len == 1)
+				return entry_ops->atom;
+			break;
+		}
+	}
+	if (first_expr)
+		return first_expr->atom;
+	return -1;
+}
+
 static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
 					struct conf_load *conf, int param_idx)
 {
 	struct parameter *parm = tag__alloc(cu, sizeof(*parm));
 
 	if (parm != NULL) {
-		Dwarf_Addr base, start, end;
 		bool has_const_value;
 		Dwarf_Attribute attr;
-		struct location loc;
 
 		tag__init(&parm->tag, cu, die);
 		parm->name = attr_string(die, DW_AT_name, conf);
@@ -1208,35 +1275,21 @@ static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
 		 */
 		has_const_value = dwarf_attr(die, DW_AT_const_value, &attr) != NULL;
 		parm->has_loc = dwarf_attr(die, DW_AT_location, &attr) != NULL;
-		/* dwarf_getlocations() handles location lists; here we are
-		 * only interested in the first expr.
-		 */
-		if (parm->has_loc &&
-#if _ELFUTILS_PREREQ(0, 157)
-		    dwarf_getlocations(&attr, 0, &base, &start, &end,
-				       &loc.expr, &loc.exprlen) > 0 &&
-#else
-		    dwarf_getlocation(&attr, &loc.expr, &loc.exprlen) == 0 &&
-#endif
-			loc.exprlen != 0) {
+
+		if (parm->has_loc) {
 			int expected_reg = cu->register_params[param_idx];
-			Dwarf_Op *expr = loc.expr;
+			int actual_reg = param_reg_at_entry(&attr, expected_reg);
 
-			switch (expr->atom) {
-			case DW_OP_reg0 ... DW_OP_reg31:
+			if (actual_reg < 0)
+				parm->optimized = 1;
+			else if (expected_reg >= 0 && expected_reg != actual_reg)
 				/* mark parameters that use an unexpected
 				 * register to hold a parameter; these will
 				 * be problematic for users of BTF as they
 				 * violate expectations about register
 				 * contents.
 				 */
-				if (expected_reg >= 0 && expected_reg != expr->atom)
-					parm->unexpected_reg = 1;
-				break;
-			default:
-				parm->optimized = 1;
-				break;
-			}
+				parm->unexpected_reg = 1;
 		} else if (has_const_value) {
 			parm->optimized = 1;
 		}

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Eduard Zingerman]

On Sun, 2024-11-10 at 03:38 -0800, Eduard Zingerman wrote:

[...]

> Also, it appears there is some bug either in pahole or in libdw's
> implementation of dwarf_getlocation(). When I try both your patch-set
> and my variant there is a segfault once in a while:
> 
>   $ for i in $(seq 1 100); \
>     do echo "---> $i"; \
>        pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/dev/null vmlinux ; \
>     done
>   ---> 1
>   ...
>   ---> 71
>   Segmentation fault (core dumped)
>   ...
> 
> The segfault happens only when -j (multiple threads) is passed.
> If pahole is built with sanitizers
> (passing -DCMAKE_C_FLAGS="-fsanitize=undefined,address")
> the stack trace looks as follows:

Did some additional research for these SEGFAULTs.
Looks like all we are in trouble.

# TLDR

libdw is not supposed to be used in a concurrent context.
libdw is a part of elfutils package, the configuration flag
making API thread-safe is documented as experimental:
  --enable-thread-safety  enable thread safety of libraries EXPERIMENTAL
At-least Fedora 40 does not ship elfutils built with this flag set.
This colours all current parallel DWARF decoding questionable.

# Why segfault happens

Any references to elfutils source code are for commit [1].
The dwarf_getlocation() is one of a few libdw APIs that uses memory
allocation internally. The function dwarf_getlocation.c:__libdw_intern_expression
iterates over expression encodings in DWARF and allocates
a set of objects of type `struct loclist` and `Dwarf_Op`.
Pointers to allocated objects are put to a binary tree for caching,
see dwarf_getlocation.c:660, the call to eu_tsearch() function.
The eu_tsearch() is a wrapper around libc tsearch() function.
This wrapper provides locking for the tree,
but only if --enable-thread-safety was set during elfutils configuration.
The SEGFAULT happens inside tsearch() call because binary tree is malformed, e.g.:

  Thread 8 "pahole" received signal SIGSEGV, Segmentation fault.
  [Switching to Thread 0x7fffd9c006c0 (LWP 2630074)]
  0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
  228	      if (parentp != NULL && RED(DEREFNODEPTR(parentp)))
  (gdb) bt
  #0  0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
  #1  0x00007ffff7c5d466 in __GI___tsearch (...) at tsearch.c:358
  #2  __GI___tsearch (...) at tsearch.c:290
  #3  0x000000000048f096 in __interceptor_tsearch ()
  #4  0x00007ffff7f5c482 in __libdw_intern_expression (...) at dwarf_getlocation.c:660
  #5  0x00007ffff7f5cf51 in getlocation (...) at dwarf_getlocation.c:678
  #6  getlocation (...) at dwarf_getlocation.c:667
  #7  dwarf_getlocation (..._ at dwarf_getlocation.c:708
  #8  0x00000000005a2ee5 in parameter.new ()
  #9  0x00000000005a0122 in die.process_function ()
  #10 0x0000000000597efd in __die__process_tag ()
  #11 0x0000000000595ad9 in die.process_unit ()
  #12 0x0000000000595436 in die.process ()
  #13 0x00000000005b0187 in dwarf_cus.process_cu ()
  #14 0x00000000005afa38 in dwarf_cus.process_cu_thread ()
  #15 0x00000000004c7b8d in asan_thread_start(void*) ()
  #16 0x00007ffff7bda6d7 in start_thread (arg=<optimized out>) at pthread_create.c:447
  #17 0x00007ffff7c5e60c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
  (gdb) p parentp
  $1 = (node *) 0x50300079d2a0
  (gdb) p *parentp
  $2 = (node) 0x0

glibc provides a way to validate binary tree structure.
For this misc/tsearch.c has to be changed to define DEBUGGING variable.
(I used glibc 2.39 as provided by source rpm for Fedora 40 for experiments).
If this is done and custom glibc is used for pahole execution,
the following error is reported if '-j' flag is present:

  $ pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/home/eddy/work/tmp/my-new.btf vmlinux 
  Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
  Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
  Aborted (core dumped)

Executing pahole using a custom-built libdw,
built with --enable-thread-safety resolves the issue.

[1] b2f225d6bff8 ("Consolidate and add files to clean target variables")
    git://sourceware.org/git/elfutils.git

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Jiri Olsa]

On Mon, Nov 11, 2024 at 12:01:13AM -0800, Eduard Zingerman wrote:
> On Sun, 2024-11-10 at 03:38 -0800, Eduard Zingerman wrote:
> 
> [...]
> 
> > Also, it appears there is some bug either in pahole or in libdw's
> > implementation of dwarf_getlocation(). When I try both your patch-set
> > and my variant there is a segfault once in a while:
> > 
> >   $ for i in $(seq 1 100); \
> >     do echo "---> $i"; \
> >        pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/dev/null vmlinux ; \
> >     done
> >   ---> 1
> >   ...
> >   ---> 71
> >   Segmentation fault (core dumped)
> >   ...
> > 
> > The segfault happens only when -j (multiple threads) is passed.
> > If pahole is built with sanitizers
> > (passing -DCMAKE_C_FLAGS="-fsanitize=undefined,address")
> > the stack trace looks as follows:
> 
> Did some additional research for these SEGFAULTs.
> Looks like all we are in trouble.
> 
> # TLDR
> 
> libdw is not supposed to be used in a concurrent context.
> libdw is a part of elfutils package, the configuration flag
> making API thread-safe is documented as experimental:
>   --enable-thread-safety  enable thread safety of libraries EXPERIMENTAL
> At-least Fedora 40 does not ship elfutils built with this flag set.
> This colours all current parallel DWARF decoding questionable.
> 
> # Why segfault happens
> 
> Any references to elfutils source code are for commit [1].
> The dwarf_getlocation() is one of a few libdw APIs that uses memory
> allocation internally. The function dwarf_getlocation.c:__libdw_intern_expression
> iterates over expression encodings in DWARF and allocates
> a set of objects of type `struct loclist` and `Dwarf_Op`.
> Pointers to allocated objects are put to a binary tree for caching,
> see dwarf_getlocation.c:660, the call to eu_tsearch() function.
> The eu_tsearch() is a wrapper around libc tsearch() function.
> This wrapper provides locking for the tree,
> but only if --enable-thread-safety was set during elfutils configuration.
> The SEGFAULT happens inside tsearch() call because binary tree is malformed, e.g.:
> 
>   Thread 8 "pahole" received signal SIGSEGV, Segmentation fault.
>   [Switching to Thread 0x7fffd9c006c0 (LWP 2630074)]
>   0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
>   228	      if (parentp != NULL && RED(DEREFNODEPTR(parentp)))
>   (gdb) bt
>   #0  0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
>   #1  0x00007ffff7c5d466 in __GI___tsearch (...) at tsearch.c:358
>   #2  __GI___tsearch (...) at tsearch.c:290
>   #3  0x000000000048f096 in __interceptor_tsearch ()
>   #4  0x00007ffff7f5c482 in __libdw_intern_expression (...) at dwarf_getlocation.c:660
>   #5  0x00007ffff7f5cf51 in getlocation (...) at dwarf_getlocation.c:678
>   #6  getlocation (...) at dwarf_getlocation.c:667
>   #7  dwarf_getlocation (..._ at dwarf_getlocation.c:708
>   #8  0x00000000005a2ee5 in parameter.new ()
>   #9  0x00000000005a0122 in die.process_function ()
>   #10 0x0000000000597efd in __die__process_tag ()
>   #11 0x0000000000595ad9 in die.process_unit ()
>   #12 0x0000000000595436 in die.process ()
>   #13 0x00000000005b0187 in dwarf_cus.process_cu ()
>   #14 0x00000000005afa38 in dwarf_cus.process_cu_thread ()
>   #15 0x00000000004c7b8d in asan_thread_start(void*) ()
>   #16 0x00007ffff7bda6d7 in start_thread (arg=<optimized out>) at pthread_create.c:447
>   #17 0x00007ffff7c5e60c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
>   (gdb) p parentp
>   $1 = (node *) 0x50300079d2a0
>   (gdb) p *parentp
>   $2 = (node) 0x0
> 
> glibc provides a way to validate binary tree structure.
> For this misc/tsearch.c has to be changed to define DEBUGGING variable.
> (I used glibc 2.39 as provided by source rpm for Fedora 40 for experiments).
> If this is done and custom glibc is used for pahole execution,
> the following error is reported if '-j' flag is present:
> 
>   $ pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/home/eddy/work/tmp/my-new.btf vmlinux 
>   Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
>   Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
>   Aborted (core dumped)
> 
> Executing pahole using a custom-built libdw,
> built with --enable-thread-safety resolves the issue.

could we use libdw__lock around that? but I guess we use it on other
places as well..

jirka

> 
> [1] b2f225d6bff8 ("Consolidate and add files to clean target variables")
>     git://sourceware.org/git/elfutils.git
> 
> 

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Arnaldo Carvalho de Melo]

Adding Mark to the CC list.

On Mon, Nov 11, 2024 at 01:36:52PM +0100, Jiri Olsa wrote:
> On Mon, Nov 11, 2024 at 12:01:13AM -0800, Eduard Zingerman wrote:
> > On Sun, 2024-11-10 at 03:38 -0800, Eduard Zingerman wrote:
> > 
> > [...]
> > 
> > > Also, it appears there is some bug either in pahole or in libdw's
> > > implementation of dwarf_getlocation(). When I try both your patch-set
> > > and my variant there is a segfault once in a while:
> > > 
> > >   $ for i in $(seq 1 100); \
> > >     do echo "---> $i"; \
> > >        pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/dev/null vmlinux ; \
> > >     done
> > >   ---> 1
> > >   ...
> > >   ---> 71
> > >   Segmentation fault (core dumped)
> > >   ...
> > > 
> > > The segfault happens only when -j (multiple threads) is passed.
> > > If pahole is built with sanitizers
> > > (passing -DCMAKE_C_FLAGS="-fsanitize=undefined,address")
> > > the stack trace looks as follows:
> > 
> > Did some additional research for these SEGFAULTs.
> > Looks like all we are in trouble.
> > 
> > # TLDR
> > 
> > libdw is not supposed to be used in a concurrent context.
> > libdw is a part of elfutils package, the configuration flag
> > making API thread-safe is documented as experimental:
> >   --enable-thread-safety  enable thread safety of libraries EXPERIMENTAL
> > At-least Fedora 40 does not ship elfutils built with this flag set.
> > This colours all current parallel DWARF decoding questionable.
> > 
> > # Why segfault happens
> > 
> > Any references to elfutils source code are for commit [1].
> > The dwarf_getlocation() is one of a few libdw APIs that uses memory
> > allocation internally. The function dwarf_getlocation.c:__libdw_intern_expression
> > iterates over expression encodings in DWARF and allocates
> > a set of objects of type `struct loclist` and `Dwarf_Op`.
> > Pointers to allocated objects are put to a binary tree for caching,
> > see dwarf_getlocation.c:660, the call to eu_tsearch() function.
> > The eu_tsearch() is a wrapper around libc tsearch() function.
> > This wrapper provides locking for the tree,
> > but only if --enable-thread-safety was set during elfutils configuration.
> > The SEGFAULT happens inside tsearch() call because binary tree is malformed, e.g.:
> > 
> >   Thread 8 "pahole" received signal SIGSEGV, Segmentation fault.
> >   [Switching to Thread 0x7fffd9c006c0 (LWP 2630074)]
> >   0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
> >   228	      if (parentp != NULL && RED(DEREFNODEPTR(parentp)))
> >   (gdb) bt
> >   #0  0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
> >   #1  0x00007ffff7c5d466 in __GI___tsearch (...) at tsearch.c:358
> >   #2  __GI___tsearch (...) at tsearch.c:290
> >   #3  0x000000000048f096 in __interceptor_tsearch ()
> >   #4  0x00007ffff7f5c482 in __libdw_intern_expression (...) at dwarf_getlocation.c:660
> >   #5  0x00007ffff7f5cf51 in getlocation (...) at dwarf_getlocation.c:678
> >   #6  getlocation (...) at dwarf_getlocation.c:667
> >   #7  dwarf_getlocation (..._ at dwarf_getlocation.c:708
> >   #8  0x00000000005a2ee5 in parameter.new ()
> >   #9  0x00000000005a0122 in die.process_function ()
> >   #10 0x0000000000597efd in __die__process_tag ()
> >   #11 0x0000000000595ad9 in die.process_unit ()
> >   #12 0x0000000000595436 in die.process ()
> >   #13 0x00000000005b0187 in dwarf_cus.process_cu ()
> >   #14 0x00000000005afa38 in dwarf_cus.process_cu_thread ()
> >   #15 0x00000000004c7b8d in asan_thread_start(void*) ()
> >   #16 0x00007ffff7bda6d7 in start_thread (arg=<optimized out>) at pthread_create.c:447
> >   #17 0x00007ffff7c5e60c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
> >   (gdb) p parentp
> >   $1 = (node *) 0x50300079d2a0
> >   (gdb) p *parentp
> >   $2 = (node) 0x0
> > 
> > glibc provides a way to validate binary tree structure.
> > For this misc/tsearch.c has to be changed to define DEBUGGING variable.
> > (I used glibc 2.39 as provided by source rpm for Fedora 40 for experiments).
> > If this is done and custom glibc is used for pahole execution,
> > the following error is reported if '-j' flag is present:
> > 
> >   $ pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/home/eddy/work/tmp/my-new.btf vmlinux 
> >   Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
> >   Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
> >   Aborted (core dumped)
> > 
> > Executing pahole using a custom-built libdw,
> > built with --enable-thread-safety resolves the issue.
> 
> could we use libdw__lock around that? but I guess we use it on other
> places as well..

Right, if you look at the cset where I intrduced libdw__lock (at the end
of this message), its a similar case, probably we should rename it to
libdw__decl_lock and introduce a libdw__getlocation_lock? This way, for
these known to be not thread safe we use libdw in serially while not
having a libdw "big lock" getting too much in the way of pahole's
parallel operation?

I'll take a closer look at Edward's analysis and the code, as well as
conversations I had with Mark Wieelard at the time.

- Arnaldo

$ git show 1caed1c443d4a0dc5
commit 1caed1c443d4a0dc5794f21954be7d5ae0396c90
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
Date:   Thu Jul 8 16:07:50 2021 -0300

    dwarf_loader: Add a lock around dwarf_decl_file() and dwarf_decl_line() calls
    
    As this ends up racing on a tsearch() call, probably for some libdw
    cache that gets updated/lookedup in concurrent pahole threads (-j N).
    
    This cures the following, a patch for libdw will be cooked up and sent.
    
      (gdb) run -j -I -F dwarf vmlinux > /dev/null
      Starting program: /var/home/acme/git/pahole/build/pahole -j -I -F dwarf vmlinux > /dev/null
      warning: Expected absolute pathname for libpthread in the inferior, but got .gnu_debugdata for /lib64/libpthread.so.0.
      warning: File "/usr/lib64/libthread_db-1.0.so" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
      warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
      [New LWP 844789]
      [New LWP 844790]
      [New LWP 844791]
      [New LWP 844792]
      [New LWP 844793]
      [New LWP 844794]
      [New LWP 844795]
      [New LWP 844796]
      [New LWP 844797]
      [New LWP 844798]
      [New LWP 844799]
      [New LWP 844800]
      [New LWP 844801]
      [New LWP 844802]
      [New LWP 844803]
      [New LWP 844804]
      [New LWP 844805]
      [New LWP 844806]
      [New LWP 844807]
      [New LWP 844808]
      [New LWP 844809]
      [New LWP 844810]
      [New LWP 844811]
      [New LWP 844812]
      [New LWP 844813]
      [New LWP 844814]
    
      Thread 2 "pahole" received signal SIGSEGV, Segmentation fault.
      [Switching to LWP 844789]
      0x00007ffff7dfa321 in ?? () from /lib64/libc.so.6
      (gdb) bt
      #0  0x00007ffff7dfa321 in ?? () from /lib64/libc.so.6
      #1  0x00007ffff7dfa4bb in ?? () from /lib64/libc.so.6
      #2  0x00007ffff7f5eaa6 in __libdw_getsrclines (dbg=0x4a7f90, debug_line_offset=10383710, comp_dir=0x7ffff3c29f01 "/var/home/acme/git/build/v5.13.0-rc6+", address_size=address_size@entry=8, linesp=linesp@entry=0x7fffcfe04ba0, filesp=filesp@entry=0x7fffcfe04ba8)
          at dwarf_getsrclines.c:1129
      #3  0x00007ffff7f5ed14 in dwarf_getsrclines (cudie=cudie@entry=0x7fffd210caf0, lines=lines@entry=0x7fffd210cac0, nlines=nlines@entry=0x7fffd210cac8) at dwarf_getsrclines.c:1213
      #4  0x00007ffff7f64883 in dwarf_decl_file (die=<optimized out>) at dwarf_decl_file.c:66
      #5  0x0000000000425f24 in tag__init (tag=0x7fff0421b710, cu=0x7fffcc001e40, die=0x7fffd210cd30) at /var/home/acme/git/pahole/dwarf_loader.c:476
      #6  0x00000000004262ec in namespace__init (namespace=0x7fff0421b710, die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:576
      #7  0x00000000004263ac in type__init (type=0x7fff0421b710, die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:595
      #8  0x00000000004264d1 in type__new (die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:614
      #9  0x0000000000427ba6 in die__create_new_typedef (die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:1212
      #10 0x0000000000428df5 in __die__process_tag (die=0x7fffd210cd30, cu=0x7fffcc001e40, top_level=1, fn=0x45cee0 <__FUNCTION__.10> "die__process_unit", conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:1823
      #11 0x0000000000428ea1 in die__process_unit (die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:1848
      #12 0x0000000000429e45 in die__process (die=0x7fffd210ce20, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:2311
      #13 0x0000000000429ecb in die__process_and_recode (die=0x7fffd210ce20, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:2326
      #14 0x000000000042a9d6 in dwarf_cus__create_and_process_cu (dcus=0x7fffffffddc0, cu_die=0x7fffd210ce20, pointer_size=8 '\b') at /var/home/acme/git/pahole/dwarf_loader.c:2644
      #15 0x000000000042ab28 in dwarf_cus__process_cu_thread (arg=0x7fffffffddc0) at /var/home/acme/git/pahole/dwarf_loader.c:2687
      #16 0x00007ffff7ed6299 in start_thread () from /lib64/libpthread.so.0
      #17 0x00007ffff7dfe353 in ?? () from /lib64/libc.so.6
      (gdb)
      (gdb) fr 2
      1085
      (gdb) list files_lines_compare
      1086    static int
      1087    files_lines_compare (const void *p1, const void *p2)
      1088    {
      1089    const struct files_lines_s *t1 = p1;
      1090    const struct files_lines_s *t2 = p2;
      1091
      1092    if (t1->debug_line_offset < t2->debug_line_offset)
      (gdb)
      1093        return -1;
      1094    if (t1->debug_line_offset > t2->debug_line_offset)
      1095        return 1;
      1096
      1097    return 0;
      1098    }
      1099
      1100    int
      1101    internal_function
      1102    __libdw_getsrclines (Dwarf *dbg, Dwarf_Off debug_line_offset,
      (gdb) list __libdw_getsrclines
      1100    int
      1101    internal_function
      1102    __libdw_getsrclines (Dwarf *dbg, Dwarf_Off debug_line_offset,
      1103                         const char *comp_dir, unsigned address_size,
      1104                         Dwarf_Lines **linesp, Dwarf_Files **filesp)
      1105    {
      1106    struct files_lines_s fake = { .debug_line_offset = debug_line_offset };
      1107    struct files_lines_s **found = tfind (&fake, &dbg->files_lines,
      1108                                            files_lines_compare);
      1109    if (found == NULL)
      (gdb)
      1110        {
      1111          Elf_Data *data = __libdw_checked_get_data (dbg, IDX_debug_line);
      1112          if (data == NULL
      1113              || __libdw_offset_in_section (dbg, IDX_debug_line,
      1114                                            debug_line_offset, 1) != 0)
      1115            return -1;
      1116
      1117          const unsigned char *linep = data->d_buf + debug_line_offset;
      1118          const unsigned char *lineendp = data->d_buf + data->d_size;
      1119
      (gdb)
      1120          struct files_lines_s *node = libdw_alloc (dbg, struct files_lines_s,
      1121                                                    sizeof *node, 1);
      1122
      1123          if (read_srclines (dbg, linep, lineendp, comp_dir, address_size,
      1124                             &node->lines, &node->files) != 0)
      1125            return -1;
      1126
      1127          node->debug_line_offset = debug_line_offset;
      1128
      1129          found = tsearch (node, &dbg->files_lines, files_lines_compare);
      (gdb)
    
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

elfutils thread-safety (Was: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching)

[Mark Wielaard]

Hi Arnaldo,

On Mon, 2024-11-11 at 10:42 -0300, Arnaldo Carvalho de Melo wrote:
> Adding Mark to the CC list.

And CC elfutils-devel so this gets more exposure to the people working
on elfutils thread-safety. For those missing some context the whole
thread is here:
https://lore.kernel.org/dwarves/ZzIJqnFh2WfzHirN@x1/T/#u

pahole source code can be found here:
https://git.kernel.org/pub/scm/devel/pahole/pahole.git
(See the README for build instructions.)

> On Mon, Nov 11, 2024 at 01:36:52PM +0100, Jiri Olsa wrote:
> > On Mon, Nov 11, 2024 at 12:01:13AM -0800, Eduard Zingerman wrote:
> > > On Sun, 2024-11-10 at 03:38 -0800, Eduard Zingerman wrote:
> > > 
> > > [...]
> > > 
> > > > Also, it appears there is some bug either in pahole or in libdw's
> > > > implementation of dwarf_getlocation(). When I try both your patch-set
> > > > and my variant there is a segfault once in a while:
> > > > 
> > > >   $ for i in $(seq 1 100); \
> > > >     do echo "---> $i"; \
> > > >        pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/dev/null vmlinux ; \
> > > >     done
> > > >   ---> 1
> > > >   ...
> > > >   ---> 71
> > > >   Segmentation fault (core dumped)
> > > >   ...
> > > > 
> > > > The segfault happens only when -j (multiple threads) is passed.
> > > > If pahole is built with sanitizers
> > > > (passing -DCMAKE_C_FLAGS="-fsanitize=undefined,address")
> > > > the stack trace looks as follows:
> > > 
> > > Did some additional research for these SEGFAULTs.
> > > Looks like all we are in trouble.
> > > 
> > > # TLDR
> > > 
> > > libdw is not supposed to be used in a concurrent context.
> > > libdw is a part of elfutils package, the configuration flag
> > > making API thread-safe is documented as experimental:
> > >   --enable-thread-safety  enable thread safety of libraries EXPERIMENTAL
> > > At-least Fedora 40 does not ship elfutils built with this flag set.
> > > This colours all current parallel DWARF decoding questionable.

Unfortunately true. The good news is that there is a serious effort to
complete the work so that --enable-thread-safety can be turned on by
default, but that work isn't complete yet. Which is why we currently
have it marked as EXPERIMENTAL.

It would be really nice if people did try it out though and reported
any remaining issues.
https://sourceware.org/bugzilla/enter_bug.cgi?product=elfutils or sent
email to elfutils-devel@sourceware.org

> > > # Why segfault happens
> > > 
> > > Any references to elfutils source code are for commit [1].
> > > The dwarf_getlocation() is one of a few libdw APIs that uses memory
> > > allocation internally. The function dwarf_getlocation.c:__libdw_intern_expression
> > > iterates over expression encodings in DWARF and allocates
> > > a set of objects of type `struct loclist` and `Dwarf_Op`.
> > > Pointers to allocated objects are put to a binary tree for caching,
> > > see dwarf_getlocation.c:660, the call to eu_tsearch() function.
> > > The eu_tsearch() is a wrapper around libc tsearch() function.
> > > This wrapper provides locking for the tree,
> > > but only if --enable-thread-safety was set during elfutils configuration.
> > > The SEGFAULT happens inside tsearch() call because binary tree is malformed, e.g.:
> > > 
> > >   Thread 8 "pahole" received signal SIGSEGV, Segmentation fault.
> > >   [Switching to Thread 0x7fffd9c006c0 (LWP 2630074)]
> > >   0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
> > >   228	      if (parentp != NULL && RED(DEREFNODEPTR(parentp)))
> > >   (gdb) bt
> > >   #0  0x00007ffff7c5d200 in maybe_split_for_insert (...) at tsearch.c:228
> > >   #1  0x00007ffff7c5d466 in __GI___tsearch (...) at tsearch.c:358
> > >   #2  __GI___tsearch (...) at tsearch.c:290
> > >   #3  0x000000000048f096 in __interceptor_tsearch ()
> > >   #4  0x00007ffff7f5c482 in __libdw_intern_expression (...) at dwarf_getlocation.c:660
> > >   #5  0x00007ffff7f5cf51 in getlocation (...) at dwarf_getlocation.c:678
> > >   #6  getlocation (...) at dwarf_getlocation.c:667
> > >   #7  dwarf_getlocation (..._ at dwarf_getlocation.c:708
> > >   #8  0x00000000005a2ee5 in parameter.new ()
> > >   #9  0x00000000005a0122 in die.process_function ()
> > >   #10 0x0000000000597efd in __die__process_tag ()
> > >   #11 0x0000000000595ad9 in die.process_unit ()
> > >   #12 0x0000000000595436 in die.process ()
> > >   #13 0x00000000005b0187 in dwarf_cus.process_cu ()
> > >   #14 0x00000000005afa38 in dwarf_cus.process_cu_thread ()
> > >   #15 0x00000000004c7b8d in asan_thread_start(void*) ()
> > >   #16 0x00007ffff7bda6d7 in start_thread (arg=<optimized out>) at pthread_create.c:447
> > >   #17 0x00007ffff7c5e60c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
> > >   (gdb) p parentp
> > >   $1 = (node *) 0x50300079d2a0
> > >   (gdb) p *parentp
> > >   $2 = (node) 0x0
> > > 
> > > glibc provides a way to validate binary tree structure.
> > > For this misc/tsearch.c has to be changed to define DEBUGGING variable.
> > > (I used glibc 2.39 as provided by source rpm for Fedora 40 for experiments).
> > > If this is done and custom glibc is used for pahole execution,
> > > the following error is reported if '-j' flag is present:
> > > 
> > >   $ pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/home/eddy/work/tmp/my-new.btf vmlinux 
> > >   Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
> > >   Fatal glibc error: tsearch.c:164 (check_tree_recurse): assertion failed: d_sofar == d_total
> > >   Aborted (core dumped)
> > > 
> > > Executing pahole using a custom-built libdw,
> > > built with --enable-thread-safety resolves the issue.
> > 
> > could we use libdw__lock around that? but I guess we use it on other
> > places as well..
> 
> Right, if you look at the cset where I intrduced libdw__lock (at the end
> of this message), its a similar case, probably we should rename it to
> libdw__decl_lock and introduce a libdw__getlocation_lock? This way, for
> these known to be not thread safe we use libdw in serially while not
> having a libdw "big lock" getting too much in the way of pahole's
> parallel operation?

The trouble with a "big lock" is that it is easy to create a big
deadlock, especially given that libdw provides various callbacks which
are then run under the big lock and must be careful to not call back
into libdw trying to reacquire the big lock.

So you are currently only using that libdw__lock around the
dwarf_decl_file/line calls?

Is there a pahole tesstsuite which exercises the -j parallel option?

Are you trying to check thread-safety of pahole with any tools like
valgrind helgrind?

Thanks,

Mark

> $ git show 1caed1c443d4a0dc5
> commit 1caed1c443d4a0dc5794f21954be7d5ae0396c90
> Author: Arnaldo Carvalho de Melo <acme@redhat.com>
> Date:   Thu Jul 8 16:07:50 2021 -0300
> 
>     dwarf_loader: Add a lock around dwarf_decl_file() and dwarf_decl_line() calls
>     
>     As this ends up racing on a tsearch() call, probably for some libdw
>     cache that gets updated/lookedup in concurrent pahole threads (-j N).
>     
>     This cures the following, a patch for libdw will be cooked up and sent.
>     
>       (gdb) run -j -I -F dwarf vmlinux > /dev/null
>       Starting program: /var/home/acme/git/pahole/build/pahole -j -I -F dwarf vmlinux > /dev/null
>       warning: Expected absolute pathname for libpthread in the inferior, but got .gnu_debugdata for /lib64/libpthread.so.0.
>       warning: File "/usr/lib64/libthread_db-1.0.so" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
>       warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
>       [New LWP 844789]
>       [New LWP 844790]
>       [New LWP 844791]
>       [New LWP 844792]
>       [New LWP 844793]
>       [New LWP 844794]
>       [New LWP 844795]
>       [New LWP 844796]
>       [New LWP 844797]
>       [New LWP 844798]
>       [New LWP 844799]
>       [New LWP 844800]
>       [New LWP 844801]
>       [New LWP 844802]
>       [New LWP 844803]
>       [New LWP 844804]
>       [New LWP 844805]
>       [New LWP 844806]
>       [New LWP 844807]
>       [New LWP 844808]
>       [New LWP 844809]
>       [New LWP 844810]
>       [New LWP 844811]
>       [New LWP 844812]
>       [New LWP 844813]
>       [New LWP 844814]
>     
>       Thread 2 "pahole" received signal SIGSEGV, Segmentation fault.
>       [Switching to LWP 844789]
>       0x00007ffff7dfa321 in ?? () from /lib64/libc.so.6
>       (gdb) bt
>       #0  0x00007ffff7dfa321 in ?? () from /lib64/libc.so.6
>       #1  0x00007ffff7dfa4bb in ?? () from /lib64/libc.so.6
>       #2  0x00007ffff7f5eaa6 in __libdw_getsrclines (dbg=0x4a7f90, debug_line_offset=10383710, comp_dir=0x7ffff3c29f01 "/var/home/acme/git/build/v5.13.0-rc6+", address_size=address_size@entry=8, linesp=linesp@entry=0x7fffcfe04ba0, filesp=filesp@entry=0x7fffcfe04ba8)
>           at dwarf_getsrclines.c:1129
>       #3  0x00007ffff7f5ed14 in dwarf_getsrclines (cudie=cudie@entry=0x7fffd210caf0, lines=lines@entry=0x7fffd210cac0, nlines=nlines@entry=0x7fffd210cac8) at dwarf_getsrclines.c:1213
>       #4  0x00007ffff7f64883 in dwarf_decl_file (die=<optimized out>) at dwarf_decl_file.c:66
>       #5  0x0000000000425f24 in tag__init (tag=0x7fff0421b710, cu=0x7fffcc001e40, die=0x7fffd210cd30) at /var/home/acme/git/pahole/dwarf_loader.c:476
>       #6  0x00000000004262ec in namespace__init (namespace=0x7fff0421b710, die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:576
>       #7  0x00000000004263ac in type__init (type=0x7fff0421b710, die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:595
>       #8  0x00000000004264d1 in type__new (die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:614
>       #9  0x0000000000427ba6 in die__create_new_typedef (die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:1212
>       #10 0x0000000000428df5 in __die__process_tag (die=0x7fffd210cd30, cu=0x7fffcc001e40, top_level=1, fn=0x45cee0 <__FUNCTION__.10> "die__process_unit", conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:1823
>       #11 0x0000000000428ea1 in die__process_unit (die=0x7fffd210cd30, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:1848
>       #12 0x0000000000429e45 in die__process (die=0x7fffd210ce20, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:2311
>       #13 0x0000000000429ecb in die__process_and_recode (die=0x7fffd210ce20, cu=0x7fffcc001e40, conf=0x475600 <conf_load>) at /var/home/acme/git/pahole/dwarf_loader.c:2326
>       #14 0x000000000042a9d6 in dwarf_cus__create_and_process_cu (dcus=0x7fffffffddc0, cu_die=0x7fffd210ce20, pointer_size=8 '\b') at /var/home/acme/git/pahole/dwarf_loader.c:2644
>       #15 0x000000000042ab28 in dwarf_cus__process_cu_thread (arg=0x7fffffffddc0) at /var/home/acme/git/pahole/dwarf_loader.c:2687
>       #16 0x00007ffff7ed6299 in start_thread () from /lib64/libpthread.so.0
>       #17 0x00007ffff7dfe353 in ?? () from /lib64/libc.so.6
>       (gdb)
>       (gdb) fr 2
>       1085
>       (gdb) list files_lines_compare
>       1086    static int
>       1087    files_lines_compare (const void *p1, const void *p2)
>       1088    {
>       1089    const struct files_lines_s *t1 = p1;
>       1090    const struct files_lines_s *t2 = p2;
>       1091
>       1092    if (t1->debug_line_offset < t2->debug_line_offset)
>       (gdb)
>       1093        return -1;
>       1094    if (t1->debug_line_offset > t2->debug_line_offset)
>       1095        return 1;
>       1096
>       1097    return 0;
>       1098    }
>       1099
>       1100    int
>       1101    internal_function
>       1102    __libdw_getsrclines (Dwarf *dbg, Dwarf_Off debug_line_offset,
>       (gdb) list __libdw_getsrclines
>       1100    int
>       1101    internal_function
>       1102    __libdw_getsrclines (Dwarf *dbg, Dwarf_Off debug_line_offset,
>       1103                         const char *comp_dir, unsigned address_size,
>       1104                         Dwarf_Lines **linesp, Dwarf_Files **filesp)
>       1105    {
>       1106    struct files_lines_s fake = { .debug_line_offset = debug_line_offset };
>       1107    struct files_lines_s **found = tfind (&fake, &dbg->files_lines,
>       1108                                            files_lines_compare);
>       1109    if (found == NULL)
>       (gdb)
>       1110        {
>       1111          Elf_Data *data = __libdw_checked_get_data (dbg, IDX_debug_line);
>       1112          if (data == NULL
>       1113              || __libdw_offset_in_section (dbg, IDX_debug_line,
>       1114                                            debug_line_offset, 1) != 0)
>       1115            return -1;
>       1116
>       1117          const unsigned char *linep = data->d_buf + debug_line_offset;
>       1118          const unsigned char *lineendp = data->d_buf + data->d_size;
>       1119
>       (gdb)
>       1120          struct files_lines_s *node = libdw_alloc (dbg, struct files_lines_s,
>       1121                                                    sizeof *node, 1);
>       1122
>       1123          if (read_srclines (dbg, linep, lineendp, comp_dir, address_size,
>       1124                             &node->lines, &node->files) != 0)
>       1125            return -1;
>       1126
>       1127          node->debug_line_offset = debug_line_offset;
>       1128
>       1129          found = tsearch (node, &dbg->files_lines, files_lines_compare);
>       (gdb)
>     
>     Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

On 11/10/24 3:38 AM, Eduard Zingerman wrote:
> On Fri, 2024-11-08 at 10:05 -0800, Yonghong Song wrote:
>
> [...]
>
>> For one of internal 6.11 kernel, there are 62498 functions in BTF and
>> perf_event_read() is not there. With this patch, there are 61552 functions
>> in BTF and perf_event_read() is included.
> Hi Yonghong,
>
> I checked this patch using my local kernel build and do see a
> difference in generated funcs: 47756 vs 47721 funcs with and without.
> Looking at DWARF for the newly added functions, the do indeed have
> DW_OP_entry_value(expected_reg) in their list of locations.
>
>> Reported-by: Song Liu <song@kernel.org>
>> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
>> ---
>>   dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
>>   1 file changed, 57 insertions(+), 24 deletions(-)
>>
>> diff --git a/dwarf_loader.c b/dwarf_loader.c
>> index e0b8c11..1fe44bc 100644
>> --- a/dwarf_loader.c
>> +++ b/dwarf_loader.c
>> @@ -1169,34 +1169,67 @@ static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
>>   		return false;
>>   
>>   #if _ELFUTILS_PREREQ(0, 157)
>> -	/* dwarf_getlocations() handles location lists; here we are
>> -	 * only interested in the first expr.
>> -	 */
>> -	if (dwarf_getlocations(attr, 0, &base, &start, &end,
>> -			       &loc.expr, &loc.exprlen) > 0 &&
>> -		loc.exprlen != 0) {
>> -		expr = loc.expr;
>> -
>> -		switch (expr->atom) {
>> -		case DW_OP_reg0 ... DW_OP_reg31:
>> -			/* mark parameters that use an unexpected
>> -			 * register to hold a parameter; these will
>> -			 * be problematic for users of BTF as they
>> -			 * violate expectations about register
>> -			 * contents.
>> +	bool reg_matched = false, reg_unmatched = false, first_expr_reg = false, ret = false;
>> +	ptrdiff_t offset = 0;
>> +	int loc_num = -1;
>> +
>> +	while ((offset = dwarf_getlocations(attr, offset, &base, &start, &end, &loc.expr, &loc.exprlen)) > 0 &&
>> +	       loc.exprlen != 0) {
>> +		ret = true;
>> +		loc_num++;
>> +
>> +		for (int i = 0; i < loc.exprlen; i++) {
> I'm not sure if you need to iterate every expression in the list.
> The list is a stack program, so each expression is a command.

For this particular case, we do not need to iterate every expression in
the list. For a location like
     [0xffffffff812c6323, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
We only cares the DW_OP_GNU_entry_value(DW_OP_reg5 RDI), so check the *first*
entry of each location is enough.

>
>> +			Dwarf_Attribute entry_attr;
>> +			Dwarf_Op *entry_ops;
>> +			size_t entry_len;
>> +
>> +			expr = &loc.expr[i];
>> +			switch (expr->atom) {
>> +			case DW_OP_reg0 ... DW_OP_reg31:
>> +				/* first location, first expression */
>> +				if (loc_num == 0 && i == 0) {
>> +					if (expected_reg >= 0) {
>> +						if (expected_reg == expr->atom) {
>> +							reg_matched = true;
> reg_matched is never really used in conditionals, as everywhere it is
> set to 'true' the 'return true' follows.

Right, there is no need to have 'reg_matches' variable.

>
> [...]
>
>> +	if (reg_unmatched)
>> +		parm->unexpected_reg = 1;
>> +	else if (ret && !first_expr_reg)
>> +		parm->optimized = 1;
> It is a bit unfortunate, that parm->optimized is now set in two functions.
> What do you think about the simplification as at the end of this email?

My original intention is to have *clear* separate for two cases,
_ELFUTILS_PREREQ(0, 157) or not. But if we intends to only visit
the first attr of every location, the things indeed can be simplified.

>
> Also, it appears there is some bug either in pahole or in libdw's
> implementation of dwarf_getlocation(). When I try both your patch-set
> and my variant there is a segfault once in a while:
>
>    $ for i in $(seq 1 100); \
>      do echo "---> $i"; \
>         pahole -j --skip_encoding_btf_inconsistent_proto -J --btf_encode_detached=/dev/null vmlinux ; \
>      done
>    ---> 1
>    ...
>    ---> 71
>    Segmentation fault (core dumped)
>    ...
>
> The segfault happens only when -j (multiple threads) is passed.
> If pahole is built with sanitizers
> (passing -DCMAKE_C_FLAGS="-fsanitize=undefined,address")
> the stack trace looks as follows:
>
> AddressSanitizer:DEADLYSIGNAL
> =================================================================
> ==2360650==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x7f20bcb29200 bp 0x7f208f7fc110 sp 0x7f208f7fc0b8 T18)
> ==2360650==The signal is caused by a READ memory access.
> ==2360650==Hint: address points to the zero page.
>      #0 0x7f20bcb29200 in maybe_split_for_insert /usr/src/debug/glibc-2.39-22.fc40.x86_64/misc/tsearch.c:228
>      #1 0x7f20bcb29465 in __GI___tsearch /usr/src/debug/glibc-2.39-22.fc40.x86_64/misc/tsearch.c:358
>      #2 0x7f20bcb29465 in __GI___tsearch /usr/src/debug/glibc-2.39-22.fc40.x86_64/misc/tsearch.c:290
>      #3 0x7f20bd489a51 in tsearch.part.0 (/lib64/libasan.so.8+0x89a51) (BuildId: a4ad7eb954b390cf00f07fa10952988a41d9fc7a)
>      #4 0x7f20bdb07601 in __libdw_intern_expression (/lib64/libdw.so.1+0x35601) (BuildId: b06d0f436023c584e2d618f94f530d9e22671078)
>      #5 0x7f20bdb09c70 in dwarf_getlocation (/lib64/libdw.so.1+0x37c70) (BuildId: b06d0f436023c584e2d618f94f530d9e22671078)
>      #6 0x4912c4 in parameter__new (/home/eddy/work/dwarves-fork/build/pahole+0x4912c4) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
>      #7 0x495bfa in die__process_function (/home/eddy/work/dwarves-fork/build/pahole+0x495bfa) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
>      #8 0x498671 in __die__process_tag (/home/eddy/work/dwarves-fork/build/pahole+0x498671) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
>      #9 0x49c692 in die__process_unit (/home/eddy/work/dwarves-fork/build/pahole+0x49c692) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
>      #10 0x49cb5f in die__process (/home/eddy/work/dwarves-fork/build/pahole+0x49cb5f) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
>      #11 0x4a3767 in dwarf_cus__process_cu (/home/eddy/work/dwarves-fork/build/pahole+0x4a3767) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
>      #12 0x4a3f8f in dwarf_cus__process_cu_thread (/home/eddy/work/dwarves-fork/build/pahole+0x4a3f8f) (BuildId: 2cc4f329c9ca6d293d2044fae936e6a4b0ffa85a)
>      #13 0x7f20bd45df95 in asan_thread_start(void*) (/lib64/libasan.so.8+0x5df95) (BuildId: a4ad7eb954b390cf00f07fa10952988a41d9fc7a)
>      #14 0x7f20bcaa66d6 in start_thread /usr/src/debug/glibc-2.39-22.fc40.x86_64/nptl/pthread_create.c:447
>      #15 0x7f20bcb2a60b in clone3 ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

I didn't notice this one during my test. But as later discussion suggested,
this is something we want to fix.

>
> ---
>
> diff --git a/dwarf_loader.c b/dwarf_loader.c
> index ec8641b..c5c2298 100644
> --- a/dwarf_loader.c
> +++ b/dwarf_loader.c
> @@ -1157,16 +1157,83 @@ static struct template_parameter_pack *template_parameter_pack__new(Dwarf_Die *d
>   	return pack;
>   }
>   
> +static ptrdiff_t __dwarf_getlocations(Dwarf_Attribute *attr,
> +				      ptrdiff_t offset, Dwarf_Addr *basep,
> +				      Dwarf_Addr *startp, Dwarf_Addr *endp,
> +				      Dwarf_Op **expr, size_t *exprlen)
> +{
> +#if _ELFUTILS_PREREQ(0, 157)
> +	return dwarf_getlocations(attr, offset, basep, startp, endp, expr, exprlen);
> +#else
> +	int err;
> +
> +	if (offset)
> +		return 0;
> +
> +	err = dwarf_getlocation(attr, expr, exprlen);
> +	return err < 0 ? err : 1;
> +#endif
> +}
> +
> +/* For DW_AT_location 'attr':
> + * - if first location is DW_OP_regXX with expected number, returns the register;
> + * - if location DW_OP_entry_value(DW_OP_regXX) is in the list, returns the register;
> + * - if first location is DW_OP_regXX, returns the register;
> + * - otherwise returns -1.
> + */
> +static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
> +{
> +	Dwarf_Op *expr, *entry_ops, *first_expr = NULL;
> +	Dwarf_Addr base, start, end;
> +	Dwarf_Attribute entry_attr;
> +	size_t exprlen, entry_len;
> +	ptrdiff_t offset = 0;
> +        int loc_num = -1;
> +
> +        while ((offset = __dwarf_getlocations(attr, offset, &base, &start, &end, &expr, &exprlen)) > 0) {
> +		loc_num++;
> +
> +		/* Convert expression list (XX DW_OP_stack_value) -> (XX).
> +		 * DW_OP_stack_value instructs interpreter to pop current value from
> +		 * DWARF expression evaluation stack, and thus is not important here.
> +		 */
> +		if (exprlen > 1 && expr[exprlen - 1].atom == DW_OP_stack_value)
> +			exprlen--;
> +
> +		if (exprlen != 1)
> +			continue;
> +
> +		switch (expr->atom) {
> +		/* match DW_OP_regXX at first location */
> +		case DW_OP_reg0 ... DW_OP_reg31:
> +			if (loc_num == 0) {
> +				if(expr->atom == expected_reg)
> +					return expr->atom;
> +				first_expr = expr;
> +			}
> +		/* match DW_OP_entry_value(DW_OP_regXX) at any location */
> +		case DW_OP_entry_value:
> +		case DW_OP_GNU_entry_value:
> +			if (dwarf_getlocation_attr (attr, expr, &entry_attr) == 0 &&
> +			    dwarf_getlocation (&entry_attr, &entry_ops, &entry_len) == 0 &&
> +			    entry_len == 1)
> +				return entry_ops->atom;
> +			break;
> +		}
> +	}
> +	if (first_expr)
> +		return first_expr->atom;
> +	return -1;
> +}
> +
>   static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
>   					struct conf_load *conf, int param_idx)
>   {
>   	struct parameter *parm = tag__alloc(cu, sizeof(*parm));
>   
>   	if (parm != NULL) {
> -		Dwarf_Addr base, start, end;
>   		bool has_const_value;
>   		Dwarf_Attribute attr;
> -		struct location loc;
>   
>   		tag__init(&parm->tag, cu, die);
>   		parm->name = attr_string(die, DW_AT_name, conf);
> @@ -1208,35 +1275,21 @@ static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
>   		 */
>   		has_const_value = dwarf_attr(die, DW_AT_const_value, &attr) != NULL;
>   		parm->has_loc = dwarf_attr(die, DW_AT_location, &attr) != NULL;
> -		/* dwarf_getlocations() handles location lists; here we are
> -		 * only interested in the first expr.
> -		 */
> -		if (parm->has_loc &&
> -#if _ELFUTILS_PREREQ(0, 157)
> -		    dwarf_getlocations(&attr, 0, &base, &start, &end,
> -				       &loc.expr, &loc.exprlen) > 0 &&
> -#else
> -		    dwarf_getlocation(&attr, &loc.expr, &loc.exprlen) == 0 &&
> -#endif
> -			loc.exprlen != 0) {
> +
> +		if (parm->has_loc) {
>   			int expected_reg = cu->register_params[param_idx];
> -			Dwarf_Op *expr = loc.expr;
> +			int actual_reg = param_reg_at_entry(&attr, expected_reg);
>   
> -			switch (expr->atom) {
> -			case DW_OP_reg0 ... DW_OP_reg31:
> +			if (actual_reg < 0)
> +				parm->optimized = 1;
> +			else if (expected_reg >= 0 && expected_reg != actual_reg)
>   				/* mark parameters that use an unexpected
>   				 * register to hold a parameter; these will
>   				 * be problematic for users of BTF as they
>   				 * violate expectations about register
>   				 * contents.
>   				 */
> -				if (expected_reg >= 0 && expected_reg != expr->atom)
> -					parm->unexpected_reg = 1;
> -				break;
> -			default:
> -				parm->optimized = 1;
> -				break;
> -			}
> +				parm->unexpected_reg = 1;
>   		} else if (has_const_value) {
>   			parm->optimized = 1;
>   		}

Thanks. With only visited the first attr for location list, we can 
indeed have less changes compared to original code.

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Jiri Olsa]

On Fri, Nov 08, 2024 at 10:05:24AM -0800, Yonghong Song wrote:
> Song Liu reported that a kernel func (perf_event_read()) cannot be traced
> in certain situations since the func is not in vmlinux bTF. This happens
> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
> 
> The perf_event_read() signature in kernel (kernel/events/core.c):
>    static int perf_event_read(struct perf_event *event, bool group)
> 
> Adding '-V' to pahole command line, and the following error msg can be found:
>    skipping addition of 'perf_event_read'(perf_event_read) due to unexpected register used for parameter
> 
> Eventually the error message is attributed to the setting
> (parm->unexpected_reg = 1) in parameter__new() function.
> 
> The following is the dwarf representation for perf_event_read():
>     0x0334c034:   DW_TAG_subprogram
>                 DW_AT_low_pc    (0xffffffff812c6110)
>                 DW_AT_high_pc   (0xffffffff812c640a)
>                 DW_AT_frame_base        (DW_OP_reg7 RSP)
>                 DW_AT_GNU_all_call_sites        (true)
>                 DW_AT_name      ("perf_event_read")
>                 DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>                 DW_AT_decl_line (4641)
>                 DW_AT_prototyped        (true)
>                 DW_AT_type      (0x03324f6a "int")
>     0x0334c04e:     DW_TAG_formal_parameter
>                   DW_AT_location        (0x007de9fd:
>                      [0xffffffff812c6115, 0xffffffff812c6141): DW_OP_reg5 RDI
>                      [0xffffffff812c6141, 0xffffffff812c6323): DW_OP_reg14 R14
>                      [0xffffffff812c6323, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>                      [0xffffffff812c63fe, 0xffffffff812c6405): DW_OP_reg14 R14
>                      [0xffffffff812c6405, 0xffffffff812c640a): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>                   DW_AT_name    ("event")
>                   DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>                   DW_AT_decl_line       (4641)
>                   DW_AT_type    (0x0333aac2 "perf_event *")
>     0x0334c05e:     DW_TAG_formal_parameter
>                   DW_AT_location        (0x007dea82:
>                      [0xffffffff812c6137, 0xffffffff812c63f2): DW_OP_reg12 R12
>                      [0xffffffff812c63f2, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>                      [0xffffffff812c63fe, 0xffffffff812c640a): DW_OP_reg12 R12)
>                   DW_AT_name    ("group")
>                   DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>                   DW_AT_decl_line       (4641)
>                   DW_AT_type    (0x03327059 "bool")

hi,
I don't see that on gcc compiled kernel, is that related to clang?


 <1><318d475>: Abbrev Number: 74 (DW_TAG_subprogram)
    <318d476>   DW_AT_name        : (indirect string, offset: 0xf5776): perf_event_read
    <318d47a>   DW_AT_decl_file   : 1
    <318d47a>   DW_AT_decl_line   : 4746
    <318d47c>   DW_AT_decl_column : 12
    <318d47d>   DW_AT_prototyped  : 1
    <318d47d>   DW_AT_type        : <0x3135e35>
    <318d481>   DW_AT_low_pc      : 0xffffffff8135be90
    <318d489>   DW_AT_high_pc     : 0x196
    <318d491>   DW_AT_frame_base  : 1 byte block: 9c    (DW_OP_call_frame_cfa)
    <318d493>   DW_AT_call_all_calls: 1
    <318d493>   DW_AT_sibling     : <0x318d900>
 <2><318d497>: Abbrev Number: 30 (DW_TAG_formal_parameter)
    <318d498>   DW_AT_name        : (indirect string, offset: 0x491590): event
    <318d49c>   DW_AT_decl_file   : 1
    <318d49c>   DW_AT_decl_line   : 4746
    <318d49e>   DW_AT_decl_column : 47
    <318d49f>   DW_AT_type        : <0x313a680>
    <318d4a3>   DW_AT_location    : 0x70c118 (location list)
    <318d4a7>   DW_AT_GNU_locviews: 0x70c110
 <2><318d4ab>: Abbrev Number: 30 (DW_TAG_formal_parameter)
    <318d4ac>   DW_AT_name        : (indirect string, offset: 0x51a865): group
    <318d4b0>   DW_AT_decl_file   : 1
    <318d4b0>   DW_AT_decl_line   : 4746
    <318d4b2>   DW_AT_decl_column : 59
    <318d4b3>   DW_AT_type        : <0x3136055>
    <318d4b7>   DW_AT_location    : 0x70c144 (location list)
    <318d4bb>   DW_AT_GNU_locviews: 0x70c13e

locations:
    0070c144 ffffffff8135be90 (base address)
    0070c14d v000000000000000 v000000000000000 views at 0070c13e for:
             ffffffff8135be90 ffffffff8135bed2 (DW_OP_reg4 (rsi))
    0070c152 v000000000000000 v000000000000000 views at 0070c140 for:
             ffffffff8135bed2 ffffffff8135bf17 (DW_OP_reg14 (r14))
    0070c158 v000000000000000 v000000000000000 views at 0070c142 for:
             ffffffff8135bf17 ffffffff8135c026 (DW_OP_entry_value: (DW_OP_reg4 (rsi)); DW_OP_stack_value)
    0070c162 <End of list>


other than that lgtm and I like the change Eduard suggested

thanks,
jirka

> 
> By inspecting the binary, the second argument ("bool group") is used
> in the function. The following are the disasm code:
>     ffffffff812c6110 <perf_event_read>:
>     ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
>     ffffffff812c6115: 55                    pushq   %rbp
>     ffffffff812c6116: 41 57                 pushq   %r15
>     ffffffff812c6118: 41 56                 pushq   %r14
>     ffffffff812c611a: 41 55                 pushq   %r13
>     ffffffff812c611c: 41 54                 pushq   %r12
>     ffffffff812c611e: 53                    pushq   %rbx
>     ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
>     ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
>     <=========== NOTE that here '%esi' is used and moved to '%r12d'.
>     ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
>     ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40, %rax
>     ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
>     ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
>     ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
>     ffffffff812c613f: 75 3f                 jne     0xffffffff812c6180 <perf_event_read+0x70>
>     ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:(%rax,%rax)
>     ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
>     ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
>     ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
>     ffffffff812c615a: e8 c1 a0 d7 00        callq   0xffffffff82040220 <_raw_spin_lock_irqsave>
>     ffffffff812c615f: 49 89 c7              movq    %rax, %r15
>     ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
>     ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
>     ffffffff812c616b: 0f 84 9a 00 00 00     je      0xffffffff812c620b <perf_event_read+0xfb>
>     ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
>     ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
>     <=========== NOTE: %rsi is overwritten
>     ......
>     ffffffff812c63f0: 41 5c                 popq    %r12
>     <============ POP r12
>     ffffffff812c63f2: 41 5d                 popq    %r13
>     ffffffff812c63f4: 41 5e                 popq    %r14
>     ffffffff812c63f6: 41 5f                 popq    %r15
>     ffffffff812c63f8: 5d                    popq    %rbp
>     ffffffff812c63f9: e9 e2 a8 d7 00        jmp     0xffffffff82040ce0 <__x86_return_thunk>
>     ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
>     ffffffff812c6400: e9 be fe ff ff        jmp     0xffffffff812c62c3 <perf_event_read+0x1b3>
> 
> It is not clear why dwarf didn't encode %rsi in locations. But
> DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
> the entry of perf_event_read(). So this patch tries to search
> DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
> the expected parameter register matchs the register in
> DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
> is not optimized.
> 
> For one of internal 6.11 kernel, there are 62498 functions in BTF and
> perf_event_read() is not there. With this patch, there are 61552 functions
> in BTF and perf_event_read() is included.
> 
> Reported-by: Song Liu <song@kernel.org>
> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
> ---
>  dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
>  1 file changed, 57 insertions(+), 24 deletions(-)
> 
> diff --git a/dwarf_loader.c b/dwarf_loader.c
> index e0b8c11..1fe44bc 100644
> --- a/dwarf_loader.c
> +++ b/dwarf_loader.c
> @@ -1169,34 +1169,67 @@ static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
>  		return false;
>  
>  #if _ELFUTILS_PREREQ(0, 157)
> -	/* dwarf_getlocations() handles location lists; here we are
> -	 * only interested in the first expr.
> -	 */
> -	if (dwarf_getlocations(attr, 0, &base, &start, &end,
> -			       &loc.expr, &loc.exprlen) > 0 &&
> -		loc.exprlen != 0) {
> -		expr = loc.expr;
> -
> -		switch (expr->atom) {
> -		case DW_OP_reg0 ... DW_OP_reg31:
> -			/* mark parameters that use an unexpected
> -			 * register to hold a parameter; these will
> -			 * be problematic for users of BTF as they
> -			 * violate expectations about register
> -			 * contents.
> +	bool reg_matched = false, reg_unmatched = false, first_expr_reg = false, ret = false;
> +	ptrdiff_t offset = 0;
> +	int loc_num = -1;
> +
> +	while ((offset = dwarf_getlocations(attr, offset, &base, &start, &end, &loc.expr, &loc.exprlen)) > 0 &&
> +	       loc.exprlen != 0) {
> +		ret = true;
> +		loc_num++;
> +
> +		for (int i = 0; i < loc.exprlen; i++) {
> +			Dwarf_Attribute entry_attr;
> +			Dwarf_Op *entry_ops;
> +			size_t entry_len;
> +
> +			expr = &loc.expr[i];
> +			switch (expr->atom) {
> +			case DW_OP_reg0 ... DW_OP_reg31:
> +				/* first location, first expression */
> +				if (loc_num == 0 && i == 0) {
> +					if (expected_reg >= 0) {
> +						if (expected_reg == expr->atom) {
> +							reg_matched = true;
> +							return true;
> +						} else {
> +							reg_unmatched = true;
> +						}
> +					}
> +					first_expr_reg = true;
> +				}
> +				break;
> +			/* For the following dwarf entry (arch x86_64) in parameter locations:
> +			 *    DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
> +			 * RSI register should be available at the entry of the program.
>  			 */
> -			if (expected_reg >= 0 && expected_reg != expr->atom)
> -				parm->unexpected_reg = 1;
> -			break;
> -		default:
> -			parm->optimized = 1;
> -			break;
> +			case DW_OP_entry_value:
> +			case DW_OP_GNU_entry_value:
> +				if (reg_matched)
> +					break;
> +				if (dwarf_getlocation_attr (attr, expr, &entry_attr) != 0)
> +					break;
> +				if (dwarf_getlocation (&entry_attr, &entry_ops, &entry_len) != 0)
> +					break;
> +				if (entry_len != 1)
> +					break;
> +				if (expected_reg >= 0 && expected_reg == entry_ops->atom) {
> +					reg_matched = true;
> +					return true;
> +				}
> +				break;
> +			default:
> +				break;
> +			}
>  		}
> -
> -		return true;
>  	}
>  
> -	return false;
> +	if (reg_unmatched)
> +		parm->unexpected_reg = 1;
> +	else if (ret && !first_expr_reg)
> +		parm->optimized = 1;
> +
> +	return ret;
>  #else
>  	if (dwarf_getlocation(attr, &loc.expr, &loc.exprlen) == 0 &&
>  		loc.exprlen != 0) {
> -- 
> 2.43.5
> 
> 

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

On 11/11/24 1:54 AM, Jiri Olsa wrote:
> On Fri, Nov 08, 2024 at 10:05:24AM -0800, Yonghong Song wrote:
>> Song Liu reported that a kernel func (perf_event_read()) cannot be traced
>> in certain situations since the func is not in vmlinux bTF. This happens
>> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
>>
>> The perf_event_read() signature in kernel (kernel/events/core.c):
>>     static int perf_event_read(struct perf_event *event, bool group)
>>
>> Adding '-V' to pahole command line, and the following error msg can be found:
>>     skipping addition of 'perf_event_read'(perf_event_read) due to unexpected register used for parameter
>>
>> Eventually the error message is attributed to the setting
>> (parm->unexpected_reg = 1) in parameter__new() function.
>>
>> The following is the dwarf representation for perf_event_read():
>>      0x0334c034:   DW_TAG_subprogram
>>                  DW_AT_low_pc    (0xffffffff812c6110)
>>                  DW_AT_high_pc   (0xffffffff812c640a)
>>                  DW_AT_frame_base        (DW_OP_reg7 RSP)
>>                  DW_AT_GNU_all_call_sites        (true)
>>                  DW_AT_name      ("perf_event_read")
>>                  DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>>                  DW_AT_decl_line (4641)
>>                  DW_AT_prototyped        (true)
>>                  DW_AT_type      (0x03324f6a "int")
>>      0x0334c04e:     DW_TAG_formal_parameter
>>                    DW_AT_location        (0x007de9fd:
>>                       [0xffffffff812c6115, 0xffffffff812c6141): DW_OP_reg5 RDI
>>                       [0xffffffff812c6141, 0xffffffff812c6323): DW_OP_reg14 R14
>>                       [0xffffffff812c6323, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>                       [0xffffffff812c63fe, 0xffffffff812c6405): DW_OP_reg14 R14
>>                       [0xffffffff812c6405, 0xffffffff812c640a): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>>                    DW_AT_name    ("event")
>>                    DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>>                    DW_AT_decl_line       (4641)
>>                    DW_AT_type    (0x0333aac2 "perf_event *")
>>      0x0334c05e:     DW_TAG_formal_parameter
>>                    DW_AT_location        (0x007dea82:
>>                       [0xffffffff812c6137, 0xffffffff812c63f2): DW_OP_reg12 R12
>>                       [0xffffffff812c63f2, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>                       [0xffffffff812c63fe, 0xffffffff812c640a): DW_OP_reg12 R12)
>>                    DW_AT_name    ("group")
>>                    DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>>                    DW_AT_decl_line       (4641)
>>                    DW_AT_type    (0x03327059 "bool")
> hi,
> I don't see that on gcc compiled kernel, is that related to clang?

Yes, the case I tried to fix is from clang compiled kernel.

>
>
>   <1><318d475>: Abbrev Number: 74 (DW_TAG_subprogram)
>      <318d476>   DW_AT_name        : (indirect string, offset: 0xf5776): perf_event_read
>      <318d47a>   DW_AT_decl_file   : 1
>      <318d47a>   DW_AT_decl_line   : 4746
>      <318d47c>   DW_AT_decl_column : 12
>      <318d47d>   DW_AT_prototyped  : 1
>      <318d47d>   DW_AT_type        : <0x3135e35>
>      <318d481>   DW_AT_low_pc      : 0xffffffff8135be90
>      <318d489>   DW_AT_high_pc     : 0x196
>      <318d491>   DW_AT_frame_base  : 1 byte block: 9c    (DW_OP_call_frame_cfa)
>      <318d493>   DW_AT_call_all_calls: 1
>      <318d493>   DW_AT_sibling     : <0x318d900>
>   <2><318d497>: Abbrev Number: 30 (DW_TAG_formal_parameter)
>      <318d498>   DW_AT_name        : (indirect string, offset: 0x491590): event
>      <318d49c>   DW_AT_decl_file   : 1
>      <318d49c>   DW_AT_decl_line   : 4746
>      <318d49e>   DW_AT_decl_column : 47
>      <318d49f>   DW_AT_type        : <0x313a680>
>      <318d4a3>   DW_AT_location    : 0x70c118 (location list)
>      <318d4a7>   DW_AT_GNU_locviews: 0x70c110
>   <2><318d4ab>: Abbrev Number: 30 (DW_TAG_formal_parameter)
>      <318d4ac>   DW_AT_name        : (indirect string, offset: 0x51a865): group
>      <318d4b0>   DW_AT_decl_file   : 1
>      <318d4b0>   DW_AT_decl_line   : 4746
>      <318d4b2>   DW_AT_decl_column : 59
>      <318d4b3>   DW_AT_type        : <0x3136055>
>      <318d4b7>   DW_AT_location    : 0x70c144 (location list)
>      <318d4bb>   DW_AT_GNU_locviews: 0x70c13e
>
> locations:
>      0070c144 ffffffff8135be90 (base address)
>      0070c14d v000000000000000 v000000000000000 views at 0070c13e for:
>               ffffffff8135be90 ffffffff8135bed2 (DW_OP_reg4 (rsi))
>      0070c152 v000000000000000 v000000000000000 views at 0070c140 for:
>               ffffffff8135bed2 ffffffff8135bf17 (DW_OP_reg14 (r14))
>      0070c158 v000000000000000 v000000000000000 views at 0070c142 for:
>               ffffffff8135bf17 ffffffff8135c026 (DW_OP_entry_value: (DW_OP_reg4 (rsi)); DW_OP_stack_value)
>      0070c162 <End of list>
>
>
> other than that lgtm and I like the change Eduard suggested
>
> thanks,
> jirka
>
[...]

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Alan Maguire]

On 08/11/2024 18:05, Yonghong Song wrote:
> Song Liu reported that a kernel func (perf_event_read()) cannot be traced
> in certain situations since the func is not in vmlinux bTF. This happens
> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
> 
> The perf_event_read() signature in kernel (kernel/events/core.c):
>    static int perf_event_read(struct perf_event *event, bool group)
> 
> Adding '-V' to pahole command line, and the following error msg can be found:
>    skipping addition of 'perf_event_read'(perf_event_read) due to unexpected register used for parameter
> 
> Eventually the error message is attributed to the setting
> (parm->unexpected_reg = 1) in parameter__new() function.
> 
> The following is the dwarf representation for perf_event_read():
>     0x0334c034:   DW_TAG_subprogram
>                 DW_AT_low_pc    (0xffffffff812c6110)
>                 DW_AT_high_pc   (0xffffffff812c640a)
>                 DW_AT_frame_base        (DW_OP_reg7 RSP)
>                 DW_AT_GNU_all_call_sites        (true)
>                 DW_AT_name      ("perf_event_read")
>                 DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>                 DW_AT_decl_line (4641)
>                 DW_AT_prototyped        (true)
>                 DW_AT_type      (0x03324f6a "int")
>     0x0334c04e:     DW_TAG_formal_parameter
>                   DW_AT_location        (0x007de9fd:
>                      [0xffffffff812c6115, 0xffffffff812c6141): DW_OP_reg5 RDI
>                      [0xffffffff812c6141, 0xffffffff812c6323): DW_OP_reg14 R14
>                      [0xffffffff812c6323, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>                      [0xffffffff812c63fe, 0xffffffff812c6405): DW_OP_reg14 R14
>                      [0xffffffff812c6405, 0xffffffff812c640a): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>                   DW_AT_name    ("event")
>                   DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>                   DW_AT_decl_line       (4641)
>                   DW_AT_type    (0x0333aac2 "perf_event *")
>     0x0334c05e:     DW_TAG_formal_parameter
>                   DW_AT_location        (0x007dea82:
>                      [0xffffffff812c6137, 0xffffffff812c63f2): DW_OP_reg12 R12
>                      [0xffffffff812c63f2, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>                      [0xffffffff812c63fe, 0xffffffff812c640a): DW_OP_reg12 R12)
>                   DW_AT_name    ("group")
>                   DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>                   DW_AT_decl_line       (4641)
>                   DW_AT_type    (0x03327059 "bool")
> 
> By inspecting the binary, the second argument ("bool group") is used
> in the function. The following are the disasm code:
>     ffffffff812c6110 <perf_event_read>:
>     ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
>     ffffffff812c6115: 55                    pushq   %rbp
>     ffffffff812c6116: 41 57                 pushq   %r15
>     ffffffff812c6118: 41 56                 pushq   %r14
>     ffffffff812c611a: 41 55                 pushq   %r13
>     ffffffff812c611c: 41 54                 pushq   %r12
>     ffffffff812c611e: 53                    pushq   %rbx
>     ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
>     ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
>     <=========== NOTE that here '%esi' is used and moved to '%r12d'.
>     ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
>     ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40, %rax
>     ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
>     ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
>     ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
>     ffffffff812c613f: 75 3f                 jne     0xffffffff812c6180 <perf_event_read+0x70>
>     ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:(%rax,%rax)
>     ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
>     ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
>     ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
>     ffffffff812c615a: e8 c1 a0 d7 00        callq   0xffffffff82040220 <_raw_spin_lock_irqsave>
>     ffffffff812c615f: 49 89 c7              movq    %rax, %r15
>     ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
>     ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
>     ffffffff812c616b: 0f 84 9a 00 00 00     je      0xffffffff812c620b <perf_event_read+0xfb>
>     ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
>     ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
>     <=========== NOTE: %rsi is overwritten
>     ......
>     ffffffff812c63f0: 41 5c                 popq    %r12
>     <============ POP r12
>     ffffffff812c63f2: 41 5d                 popq    %r13
>     ffffffff812c63f4: 41 5e                 popq    %r14
>     ffffffff812c63f6: 41 5f                 popq    %r15
>     ffffffff812c63f8: 5d                    popq    %rbp
>     ffffffff812c63f9: e9 e2 a8 d7 00        jmp     0xffffffff82040ce0 <__x86_return_thunk>
>     ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
>     ffffffff812c6400: e9 be fe ff ff        jmp     0xffffffff812c62c3 <perf_event_read+0x1b3>
> 
> It is not clear why dwarf didn't encode %rsi in locations. But
> DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
> the entry of perf_event_read(). So this patch tries to search
> DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
> the expected parameter register matchs the register in
> DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
> is not optimized.
> 
> For one of internal 6.11 kernel, there are 62498 functions in BTF and
> perf_event_read() is not there. With this patch, there are 61552 functions
> in BTF and perf_event_read() is included.
>

hi Yonghong,

I'm confused by these numbers. I would have thought your changes would
have led to a net increase of functions encoded in vmlinux BTF since we
are now likely catching more cases where registers are expected.  When I
ran your patches against an LLVM-built kernel, that's what I saw; 70
additional functions were recognized as having expected parameters, and
thus were encoded in BTF. In your case it looks like we lost nearly 1000
functions. Any idea what's going on there? If you can share your config,
LLVM version I can dig into this from my side too. Thanks!

Alan

> Reported-by: Song Liu <song@kernel.org>
> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
> ---
>  dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
>  1 file changed, 57 insertions(+), 24 deletions(-)
> 
> diff --git a/dwarf_loader.c b/dwarf_loader.c
> index e0b8c11..1fe44bc 100644
> --- a/dwarf_loader.c
> +++ b/dwarf_loader.c
> @@ -1169,34 +1169,67 @@ static bool check_dwarf_locations(Dwarf_Attribute *attr, struct parameter *parm,
>  		return false;
>  
>  #if _ELFUTILS_PREREQ(0, 157)
> -	/* dwarf_getlocations() handles location lists; here we are
> -	 * only interested in the first expr.
> -	 */
> -	if (dwarf_getlocations(attr, 0, &base, &start, &end,
> -			       &loc.expr, &loc.exprlen) > 0 &&
> -		loc.exprlen != 0) {
> -		expr = loc.expr;
> -
> -		switch (expr->atom) {
> -		case DW_OP_reg0 ... DW_OP_reg31:
> -			/* mark parameters that use an unexpected
> -			 * register to hold a parameter; these will
> -			 * be problematic for users of BTF as they
> -			 * violate expectations about register
> -			 * contents.
> +	bool reg_matched = false, reg_unmatched = false, first_expr_reg = false, ret = false;
> +	ptrdiff_t offset = 0;
> +	int loc_num = -1;
> +
> +	while ((offset = dwarf_getlocations(attr, offset, &base, &start, &end, &loc.expr, &loc.exprlen)) > 0 &&
> +	       loc.exprlen != 0) {
> +		ret = true;
> +		loc_num++;
> +
> +		for (int i = 0; i < loc.exprlen; i++) {
> +			Dwarf_Attribute entry_attr;
> +			Dwarf_Op *entry_ops;
> +			size_t entry_len;
> +
> +			expr = &loc.expr[i];
> +			switch (expr->atom) {
> +			case DW_OP_reg0 ... DW_OP_reg31:
> +				/* first location, first expression */
> +				if (loc_num == 0 && i == 0) {
> +					if (expected_reg >= 0) {
> +						if (expected_reg == expr->atom) {
> +							reg_matched = true;
> +							return true;
> +						} else {
> +							reg_unmatched = true;
> +						}
> +					}
> +					first_expr_reg = true;
> +				}
> +				break;
> +			/* For the following dwarf entry (arch x86_64) in parameter locations:
> +			 *    DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
> +			 * RSI register should be available at the entry of the program.
>  			 */
> -			if (expected_reg >= 0 && expected_reg != expr->atom)
> -				parm->unexpected_reg = 1;
> -			break;
> -		default:
> -			parm->optimized = 1;
> -			break;
> +			case DW_OP_entry_value:
> +			case DW_OP_GNU_entry_value:
> +				if (reg_matched)
> +					break;
> +				if (dwarf_getlocation_attr (attr, expr, &entry_attr) != 0)
> +					break;
> +				if (dwarf_getlocation (&entry_attr, &entry_ops, &entry_len) != 0)
> +					break;
> +				if (entry_len != 1)
> +					break;
> +				if (expected_reg >= 0 && expected_reg == entry_ops->atom) {
> +					reg_matched = true;
> +					return true;
> +				}
> +				break;
> +			default:
> +				break;
> +			}
>  		}
> -
> -		return true;
>  	}
>  
> -	return false;
> +	if (reg_unmatched)
> +		parm->unexpected_reg = 1;
> +	else if (ret && !first_expr_reg)
> +		parm->optimized = 1;
> +
> +	return ret;
>  #else
>  	if (dwarf_getlocation(attr, &loc.expr, &loc.exprlen) == 0 &&
>  		loc.exprlen != 0) {

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

[-- Attachment #1: Type: text/plain, Size: 10402 bytes --]




On 11/11/24 7:39 AM, Alan Maguire wrote:
> On 08/11/2024 18:05, Yonghong Song wrote:
>> Song Liu reported that a kernel func (perf_event_read()) cannot be traced
>> in certain situations since the func is not in vmlinux bTF. This happens
>> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
>>
>> The perf_event_read() signature in kernel (kernel/events/core.c):
>>     static int perf_event_read(struct perf_event *event, bool group)
>>
>> Adding '-V' to pahole command line, and the following error msg can be found:
>>     skipping addition of 'perf_event_read'(perf_event_read) due to unexpected register used for parameter
>>
>> Eventually the error message is attributed to the setting
>> (parm->unexpected_reg = 1) in parameter__new() function.
>>
>> The following is the dwarf representation for perf_event_read():
>>      0x0334c034:   DW_TAG_subprogram
>>                  DW_AT_low_pc    (0xffffffff812c6110)
>>                  DW_AT_high_pc   (0xffffffff812c640a)
>>                  DW_AT_frame_base        (DW_OP_reg7 RSP)
>>                  DW_AT_GNU_all_call_sites        (true)
>>                  DW_AT_name      ("perf_event_read")
>>                  DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>>                  DW_AT_decl_line (4641)
>>                  DW_AT_prototyped        (true)
>>                  DW_AT_type      (0x03324f6a "int")
>>      0x0334c04e:     DW_TAG_formal_parameter
>>                    DW_AT_location        (0x007de9fd:
>>                       [0xffffffff812c6115, 0xffffffff812c6141): DW_OP_reg5 RDI
>>                       [0xffffffff812c6141, 0xffffffff812c6323): DW_OP_reg14 R14
>>                       [0xffffffff812c6323, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>                       [0xffffffff812c63fe, 0xffffffff812c6405): DW_OP_reg14 R14
>>                       [0xffffffff812c6405, 0xffffffff812c640a): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>>                    DW_AT_name    ("event")
>>                    DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>>                    DW_AT_decl_line       (4641)
>>                    DW_AT_type    (0x0333aac2 "perf_event *")
>>      0x0334c05e:     DW_TAG_formal_parameter
>>                    DW_AT_location        (0x007dea82:
>>                       [0xffffffff812c6137, 0xffffffff812c63f2): DW_OP_reg12 R12
>>                       [0xffffffff812c63f2, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>                       [0xffffffff812c63fe, 0xffffffff812c640a): DW_OP_reg12 R12)
>>                    DW_AT_name    ("group")
>>                    DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
>>                    DW_AT_decl_line       (4641)
>>                    DW_AT_type    (0x03327059 "bool")
>>
>> By inspecting the binary, the second argument ("bool group") is used
>> in the function. The following are the disasm code:
>>      ffffffff812c6110 <perf_event_read>:
>>      ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>      ffffffff812c6115: 55                    pushq   %rbp
>>      ffffffff812c6116: 41 57                 pushq   %r15
>>      ffffffff812c6118: 41 56                 pushq   %r14
>>      ffffffff812c611a: 41 55                 pushq   %r13
>>      ffffffff812c611c: 41 54                 pushq   %r12
>>      ffffffff812c611e: 53                    pushq   %rbx
>>      ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
>>      ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
>>      <=========== NOTE that here '%esi' is used and moved to '%r12d'.
>>      ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
>>      ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40, %rax
>>      ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
>>      ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
>>      ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
>>      ffffffff812c613f: 75 3f                 jne     0xffffffff812c6180 <perf_event_read+0x70>
>>      ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:(%rax,%rax)
>>      ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>      ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
>>      ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
>>      ffffffff812c615a: e8 c1 a0 d7 00        callq   0xffffffff82040220 <_raw_spin_lock_irqsave>
>>      ffffffff812c615f: 49 89 c7              movq    %rax, %r15
>>      ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
>>      ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
>>      ffffffff812c616b: 0f 84 9a 00 00 00     je      0xffffffff812c620b <perf_event_read+0xfb>
>>      ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
>>      ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
>>      <=========== NOTE: %rsi is overwritten
>>      ......
>>      ffffffff812c63f0: 41 5c                 popq    %r12
>>      <============ POP r12
>>      ffffffff812c63f2: 41 5d                 popq    %r13
>>      ffffffff812c63f4: 41 5e                 popq    %r14
>>      ffffffff812c63f6: 41 5f                 popq    %r15
>>      ffffffff812c63f8: 5d                    popq    %rbp
>>      ffffffff812c63f9: e9 e2 a8 d7 00        jmp     0xffffffff82040ce0 <__x86_return_thunk>
>>      ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
>>      ffffffff812c6400: e9 be fe ff ff        jmp     0xffffffff812c62c3 <perf_event_read+0x1b3>
>>
>> It is not clear why dwarf didn't encode %rsi in locations. But
>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
>> the entry of perf_event_read(). So this patch tries to search
>> DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
>> the expected parameter register matchs the register in
>> DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
>> is not optimized.
>>
>> For one of internal 6.11 kernel, there are 62498 functions in BTF and
>> perf_event_read() is not there. With this patch, there are 61552 functions
>> in BTF and perf_event_read() is included.
>>
> hi Yonghong,
>
> I'm confused by these numbers. I would have thought your changes would
> have led to a net increase of functions encoded in vmlinux BTF since we
> are now likely catching more cases where registers are expected.  When I
> ran your patches against an LLVM-built kernel, that's what I saw; 70
> additional functions were recognized as having expected parameters, and
> thus were encoded in BTF. In your case it looks like we lost nearly 1000
> functions. Any idea what's going on there? If you can share your config,
> LLVM version I can dig into this from my side too. Thanks!

Attached is my config (based on one of meta internal configs). I tried
with master branch with head:

7b6e5bfa2541380b478ea1532880210ea3e39e11 (HEAD -> master, origin/master, origin/HEAD) Merge branch 'refactor-lock-management'
ae6e3a273f590a2b64f14a9fab3546c3a8f44ed4 bpf: Drop special callback reference handling
f6b9a69a9e56b2083aca8a925fc1a28eb698e3ed bpf: Refactor active lock management

I am using pahole v1.27.

I am using an llvm built from upstream. The following is llvm-project head:
beb12f92c71981670e07e47275efc6b5647011c1 (HEAD -> main) [RISCV] Add +optimized-nfN-segment-load-store (#114414)
6bad4514c938b3b48c0c719b8dd98b3906f2c290 [AArch64] Extend vector mull test coverage. NFC
915b910d800d7fab6a692294ff1d7075d8cba824 [libc] Fix typos in proxy type headers (#114717)
98ea1a81a28a6dd36941456c8ab4ce46f665f57a [IPO] Remove unused includes (NFC) (#114716)

With the above setup, when to do

pahole -JV --btf_features=encode_force,var,float,enum64,decl_tag,type_tag,optimized_func,consistent_func,decl_tag_kfuncs vmlinux >& log.pahole

You will find the below info in the log:
   skipping addition of 'perf_event_read'(perf_event_read) due to unexpected register used for paramet

In the dwarf:

0x02122746:   DW_TAG_subprogram
                 DW_AT_low_pc    (0xffffffff81299740)
                 DW_AT_high_pc   (0xffffffff812999f7)
                 DW_AT_frame_base        (DW_OP_reg7 RSP)
                 DW_AT_GNU_all_call_sites        (true)
                 DW_AT_name      ("perf_event_read")
                 DW_AT_decl_file ("/home/yhs/work/bpf-next/kernel/events/core.c")
                 DW_AT_decl_line (4746)
                 DW_AT_prototyped        (true)
                 DW_AT_type      (0x020f95f5 "int")

0x02122760:     DW_TAG_formal_parameter
                   DW_AT_location        (0x00769b72:
                      [0xffffffff81299745, 0xffffffff81299764): DW_OP_reg5 RDI
                      [0xffffffff81299764, 0xffffffff81299937): DW_OP_reg3 RBX
                      [0xffffffff81299937, 0xffffffff812999f0): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
                      [0xffffffff812999f0, 0xffffffff812999f7): DW_OP_reg3 RBX)
                   DW_AT_name    ("event")
                   DW_AT_decl_file       ("/home/yhs/work/bpf-next/kernel/events/core.c")
                   DW_AT_decl_line       (4746)
                   DW_AT_type    (0x0210f654 "perf_event *")
                     
0x02122770:     DW_TAG_formal_parameter
                   DW_AT_location        (0x00769c61:
                      [0xffffffff81299758, 0xffffffff81299926): DW_OP_reg6 RBP
                      [0xffffffff81299926, 0xffffffff812999f0): DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
                      [0xffffffff812999f0, 0xffffffff812999f7): DW_OP_reg6 RBP)
                   DW_AT_name    ("group")
                   DW_AT_decl_file       ("/home/yhs/work/bpf-next/kernel/events/core.c")

The above is slightly different from our production kernel where Song reported. But essence is the same.
The second parameter needs to check DW_OP_GNU_entry_value(DW_OP_reg4 RSI) to ensure the second
argument is available.

My patch is supposed to only make improvement. I am curiously why you get less functions encoded in BTF.

>
> Alan
>
>> Reported-by: Song Liu <song@kernel.org>
>> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
>> ---
>>   dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
>>   1 file changed, 57 insertions(+), 24 deletions(-)
>>
[...]

[-- Attachment #2: pahole_reproducer.config --]
[-- Type: text/plain, Size: 181272 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 6.12.0-rc4 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 20.0.0git (https://github.com/llvm/llvm-project.git beb12f92c71981670e07e47275efc6b5647011c1)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=200000
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=200000
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=200000
CONFIG_RUSTC_VERSION=107900
CONFIG_RUSTC_LLVM_VERSION=180108
CONFIG_CC_CAN_LINK=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=127
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
CONFIG_KERNEL_XZ=y
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_GENERIC_IRQ_STAT_SNAPSHOT=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST_IDLE=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_IDLE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_CONTEXT_TRACKING_USER=y
# CONFIG_CONTEXT_TRACKING_USER_FORCE is not set
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=100
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
# CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set
CONFIG_USERMODE_DRIVER=y
CONFIG_BPF_PRELOAD=y
CONFIG_BPF_PRELOAD_UMD=m
CONFIG_BPF_LSM=y
# end of BPF subsystem

CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_PREEMPT_RT is not set
# CONFIG_PREEMPT_DYNAMIC is not set
# CONFIG_SCHED_CORE is not set
CONFIG_SCHED_CLASS_EXT=y

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
# CONFIG_TICK_CPU_ACCOUNTING is not set
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_SCHED_AVG_IRQ=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_PSI=y
# CONFIG_PSI_DEFAULT_DISABLED is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_NEED_TASKS_RCU=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_IKHEADERS=m
CONFIG_LOG_BUF_SHIFT=21
CONFIG_LOG_CPU_MAX_BUF_SHIFT=0
CONFIG_PRINTK_INDEX=y
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
CONFIG_GCC10_NO_ARRAY_BOUNDS=y
CONFIG_GCC_NO_STRINGOP_OVERFLOW=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_NUMA_BALANCING=y
# CONFIG_NUMA_BALANCING_DEFAULT_ENABLED is not set
CONFIG_SLAB_OBJ_EXT=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
# CONFIG_CGROUP_FAVOR_DYNMODS is not set
CONFIG_MEMCG=y
# CONFIG_MEMCG_V1 is not set
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_GROUP_SCHED_WEIGHT=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_EXT_GROUP_SCHED=y
CONFIG_SCHED_MM_CID=y
CONFIG_CGROUP_PIDS=y
# CONFIG_CGROUP_RDMA is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
# CONFIG_CPUSETS_V1 is not set
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_BPF=y
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
CONFIG_BOOT_CONFIG=y
# CONFIG_BOOT_CONFIG_FORCE is not set
CONFIG_BOOT_CONFIG_EMBED=y
CONFIG_BOOT_CONFIG_EMBED_FILE=""
CONFIG_INITRAMFS_PRESERVE_MTIME=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
# CONFIG_SGETMASK_SYSCALL is not set
# CONFIG_SYSFS_SYSCALL is not set
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
# CONFIG_BASE_SMALL is not set
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_DEBUG_RSEQ is not set
CONFIG_CACHESTAT_SYSCALL=y
# CONFIG_PC104 is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_SELFTEST is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_GUEST_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

CONFIG_SYSTEM_DATA_VERIFICATION=y
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y

#
# Kexec and crash features
#
CONFIG_CRASH_RESERVE=y
CONFIG_VMCORE_INFO=y
CONFIG_KEXEC_CORE=y
CONFIG_HAVE_IMA_KEXEC=y
CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y
# CONFIG_KEXEC_SIG is not set
CONFIG_CRASH_DUMP=y
# CONFIG_CRASH_HOTPLUG is not set
# end of Kexec and crash features
# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_AUDIT_ARCH=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DYNAMIC_PHYSICAL_MASK=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_X2APIC=y
# CONFIG_X86_POSTED_MSI is not set
# CONFIG_X86_MPPARSE is not set
CONFIG_X86_CPU_RESCTRL=y
# CONFIG_X86_FRED is not set
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_NUMACHIP is not set
# CONFIG_X86_VSMP is not set
CONFIG_X86_UV=y
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=m
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
# CONFIG_PARAVIRT_SPINLOCKS is not set
CONFIG_X86_HV_CALLBACK_VECTOR=y
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_JAILHOUSE_GUEST is not set
# CONFIG_ACRN_GUEST is not set
# CONFIG_INTEL_TDX_GUEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
CONFIG_MCORE2=y
# CONFIG_MATOM is not set
# CONFIG_GENERIC_CPU is not set
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_P6_NOP=y
CONFIG_X86_TSC=y
CONFIG_X86_HAVE_PAE=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
# CONFIG_CPU_SUP_HYGON is not set
# CONFIG_CPU_SUP_CENTAUR is not set
# CONFIG_CPU_SUP_ZHAOXIN is not set
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS_RANGE_BEGIN=2
CONFIG_NR_CPUS_RANGE_END=512
CONFIG_NR_CPUS_DEFAULT=64
CONFIG_NR_CPUS=512
# CONFIG_SCHED_CLUSTER is not set
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_SCHED_MC_PRIO is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_ACPI_MADT_WAKEUP=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
CONFIG_X86_MCE=y
CONFIG_X86_MCELOG_LEGACY=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_PERF_EVENTS_INTEL_RAPL=y
CONFIG_PERF_EVENTS_INTEL_CSTATE=y
CONFIG_PERF_EVENTS_AMD_POWER=y
CONFIG_PERF_EVENTS_AMD_UNCORE=y
# CONFIG_PERF_EVENTS_AMD_BRS is not set
# end of Performance monitoring

# CONFIG_X86_16BIT is not set
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_MICROCODE=y
CONFIG_MICROCODE_LATE_LOADING=y
# CONFIG_MICROCODE_LATE_FORCE_MINREV is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
# CONFIG_X86_5LEVEL is not set
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_X86_CPA_STATISTICS is not set
CONFIG_X86_MEM_ENCRYPT=y
CONFIG_AMD_MEM_ENCRYPT=y
CONFIG_NUMA=y
# CONFIG_AMD_NUMA is not set
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SHIFT=4
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
# CONFIG_ARCH_MEMORY_PROBE is not set
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_X86_PMEM_LEGACY_DEVICE=y
CONFIG_X86_PMEM_LEGACY=m
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_X86_UMIP=y
CONFIG_CC_HAS_IBT=y
# CONFIG_X86_KERNEL_IBT is not set
CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y
CONFIG_ARCH_PKEY_BITS=4
CONFIG_X86_INTEL_TSX_MODE_OFF=y
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
CONFIG_X86_SGX=y
# CONFIG_X86_USER_SHADOW_STACK is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_HANDOVER_PROTOCOL=y
# CONFIG_EFI_MIXED is not set
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_ARCH_SUPPORTS_KEXEC=y
CONFIG_ARCH_SUPPORTS_KEXEC_FILE=y
CONFIG_ARCH_SELECTS_KEXEC_FILE=y
CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY=y
CONFIG_ARCH_SUPPORTS_KEXEC_SIG=y
CONFIG_ARCH_SUPPORTS_KEXEC_SIG_FORCE=y
CONFIG_ARCH_SUPPORTS_KEXEC_BZIMAGE_VERIFY_SIG=y
CONFIG_ARCH_SUPPORTS_KEXEC_JUMP=y
CONFIG_ARCH_SUPPORTS_CRASH_DUMP=y
CONFIG_ARCH_SUPPORTS_CRASH_HOTPLUG=y
CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_ADDRESS_MASKING=y
CONFIG_HOTPLUG_CPU=y
CONFIG_COMPAT_VDSO=y
CONFIG_LEGACY_VSYSCALL_XONLY=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y
# end of Processor type and features

CONFIG_CC_HAS_SLS=y
CONFIG_CC_HAS_RETURN_THUNK=y
CONFIG_CC_HAS_ENTRY_PADDING=y
CONFIG_FUNCTION_PADDING_CFI=11
CONFIG_FUNCTION_PADDING_BYTES=16
# CONFIG_CPU_MITIGATIONS is not set
CONFIG_ARCH_HAS_ADD_PAGES=y

#
# Power management and ACPI options
#
# CONFIG_SUSPEND is not set
# CONFIG_HIBERNATION is not set
# CONFIG_PM is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
CONFIG_ACPI_TABLE_LIB=y
CONFIG_ACPI_THERMAL_LIB=y
# CONFIG_ACPI_DEBUGGER is not set
# CONFIG_ACPI_SPCR_TABLE is not set
# CONFIG_ACPI_FPDT is not set
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=m
CONFIG_ACPI_BATTERY=m
CONFIG_ACPI_BUTTON=m
# CONFIG_ACPI_TINY_POWER_BUTTON is not set
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_CPPC_LIB=y
CONFIG_ACPI_PROCESSOR=y
# CONFIG_ACPI_IPMI is not set
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_HOTPLUG_MEMORY is not set
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
CONFIG_ACPI_HED=y
# CONFIG_ACPI_BGRT is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_ACPI_NFIT=m
# CONFIG_NFIT_SECURITY_DEBUG is not set
CONFIG_ACPI_NUMA=y
CONFIG_ACPI_HMAT=y
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
CONFIG_ACPI_APEI_EINJ=y
# CONFIG_ACPI_APEI_EINJ_CXL is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_DPTF is not set
# CONFIG_ACPI_EXTLOG is not set
CONFIG_ACPI_ADXL=y
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_ACPI_PFRUT is not set
CONFIG_ACPI_PCC=y
# CONFIG_ACPI_FFH is not set
# CONFIG_PMIC_OPREGION is not set
CONFIG_ACPI_PRMT=y
CONFIG_X86_PM_TIMER=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_AMD_PSTATE=y
CONFIG_X86_AMD_PSTATE_DEFAULT_MODE=3
# CONFIG_X86_AMD_PSTATE_UT is not set
CONFIG_X86_ACPI_CPUFREQ=m
# CONFIG_X86_ACPI_CPUFREQ_CPB is not set
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set

#
# shared options
#
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_CPU_IDLE_GOV_TEO is not set
# CONFIG_CPU_IDLE_GOV_HALTPOLL is not set
# CONFIG_HALTPOLL_CPUIDLE is not set
# end of CPU Idle

CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_MMCONF_FAM10H=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
# CONFIG_ISA_BUS is not set
# CONFIG_ISA_DMA_API is not set
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_EMULATION_DEFAULT_DISABLED is not set
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
# end of Binary Emulations

CONFIG_KVM_COMMON=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_DIRTY_RING_TSO=y
CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_READONLY_MEM=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_GENERIC_PRE_FAULT_MEMORY=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_KVM_GENERIC_HARDWARE_ENABLING=y
CONFIG_KVM_GENERIC_MMU_NOTIFIER=y
CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES=y
CONFIG_KVM_PRIVATE_MEM=y
CONFIG_KVM_GENERIC_PRIVATE_MEM=y
CONFIG_HAVE_KVM_ARCH_GMEM_PREPARE=y
CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM_X86=m
CONFIG_KVM=m
CONFIG_KVM_WERROR=y
# CONFIG_KVM_SW_PROTECTED_VM is not set
CONFIG_KVM_INTEL=m
# CONFIG_KVM_INTEL_PROVE_VE is not set
# CONFIG_X86_SGX_KVM is not set
CONFIG_KVM_AMD=m
CONFIG_KVM_AMD_SEV=y
CONFIG_KVM_SMM=y
# CONFIG_KVM_HYPERV is not set
# CONFIG_KVM_XEN is not set
# CONFIG_KVM_PROVE_MMU is not set
CONFIG_KVM_MAX_NR_VCPUS=1024
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y
CONFIG_AS_GFNI=y
CONFIG_AS_VAES=y
CONFIG_AS_VPCLMULQDQ=y
CONFIG_AS_WRUSS=y
CONFIG_ARCH_CONFIGURES_CPU_MITIGATIONS=y

#
# General architecture-dependent options
#
CONFIG_HOTPLUG_SMT=y
CONFIG_HOTPLUG_CORE_SYNC=y
CONFIG_HOTPLUG_CORE_SYNC_DEAD=y
CONFIG_HOTPLUG_CORE_SYNC_FULL=y
CONFIG_HOTPLUG_SPLIT_STARTUP=y
CONFIG_HOTPLUG_PARALLEL=y
CONFIG_GENERIC_ENTRY=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_KRETPROBE_ON_RETHOOK=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_ARCH_HAS_CPU_FINALIZE_INIT=y
CONFIG_ARCH_HAS_CPU_PASID=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_RUST=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_MMU_GATHER_MERGE_VMAS=y
CONFIG_MMU_LAZY_TLB_REFCOUNT=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_HAVE_EXTRA_ELF_NOTES=y
CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
# CONFIG_STACKPROTECTOR is not set
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_HAS_LTO_CLANG=y
CONFIG_LTO_NONE=y
# CONFIG_LTO_CLANG_FULL is not set
# CONFIG_LTO_CLANG_THIN is not set
CONFIG_ARCH_SUPPORTS_CFI_CLANG=y
# CONFIG_CFI_CLANG is not set
CONFIG_HAVE_CFI_ICALL_NORMALIZE_INTEGERS_CLANG=y
CONFIG_HAVE_CFI_ICALL_NORMALIZE_INTEGERS_RUSTC=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_CONTEXT_TRACKING_USER_OFFSTACK=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_HUGE_VMALLOC=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_PMD_MKWRITE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_HAVE_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SHIFT=12
CONFIG_HAVE_OBJTOOL=y
CONFIG_HAVE_JUMP_LABEL_HACK=y
CONFIG_HAVE_NOINSTR_HACK=y
CONFIG_HAVE_NOINSTR_VALIDATION=y
CONFIG_HAVE_UACCESS_VALIDATION=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_ARCH_SUPPORTS_RT=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
CONFIG_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_ARCH_USE_MEMREMAP_PROT=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_ARCH_HAS_CC_PLATFORM=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_STATIC_CALL_INLINE=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y
CONFIG_HAVE_ARCH_NODE_DEV_GROUP=y
CONFIG_ARCH_HAS_HW_PTE_YOUNG=y
CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y
CONFIG_ARCH_HAS_KERNEL_FPU_SUPPORT=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_FUNCTION_ALIGNMENT_4B=y
CONFIG_FUNCTION_ALIGNMENT_16B=y
CONFIG_FUNCTION_ALIGNMENT=16
CONFIG_CC_HAS_SANE_FUNCTION_ALIGNMENT=y
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
# CONFIG_MODULE_DEBUG is not set
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
CONFIG_MODVERSIONS=y
CONFIG_ASM_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
# CONFIG_MODULE_SIG_ALL is not set
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA256 is not set
# CONFIG_MODULE_SIG_SHA384 is not set
CONFIG_MODULE_SIG_SHA512=y
# CONFIG_MODULE_SIG_SHA3_256 is not set
# CONFIG_MODULE_SIG_SHA3_384 is not set
# CONFIG_MODULE_SIG_SHA3_512 is not set
CONFIG_MODULE_SIG_HASH="sha512"
# CONFIG_MODULE_COMPRESS is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_RQ_ALLOC_TIME=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_CGROUP_PUNT_BIO=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_ICQ=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_WRITE_MOUNTED=y
# CONFIG_BLK_DEV_ZONED is not set
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
CONFIG_BLK_CGROUP_IOLATENCY=y
CONFIG_BLK_CGROUP_IOCOST=y
# CONFIG_BLK_CGROUP_IOPRIO is not set
CONFIG_BLK_DEBUG_FS=y
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
# end of Partition Types

CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y
CONFIG_BLK_MQ_STACKING=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_IOSCHED_BFQ=m
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BFQ_CGROUP_DEBUG=y
# end of IO Schedulers

CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_ZPOOL=y
CONFIG_SWAP=y
CONFIG_ZSWAP=y
# CONFIG_ZSWAP_DEFAULT_ON is not set
# CONFIG_ZSWAP_SHRINKER_DEFAULT_ON is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD=y
CONFIG_ZSWAP_COMPRESSOR_DEFAULT="zstd"
# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD is not set
# CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED is not set
CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC=y
CONFIG_ZSWAP_ZPOOL_DEFAULT="zsmalloc"
# CONFIG_ZBUD is not set
# CONFIG_Z3FOLD_DEPRECATED is not set
CONFIG_ZSMALLOC=y
# CONFIG_ZSMALLOC_STAT is not set
CONFIG_ZSMALLOC_CHAIN_SIZE=8

#
# Slab allocator options
#
CONFIG_SLUB=y
# CONFIG_SLUB_TINY is not set
# CONFIG_SLAB_MERGE_DEFAULT is not set
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLAB_BUCKETS is not set
# CONFIG_SLUB_STATS is not set
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_RANDOM_KMALLOC_CACHES is not set
# end of Slab allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
CONFIG_COMPAT_BRK=y
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_ARCH_WANT_OPTIMIZE_DAX_VMEMMAP=y
CONFIG_ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP=y
CONFIG_HAVE_GUP_FAST=y
CONFIG_NUMA_KEEP_MEMINFO=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_MEMORY_HOTPLUG=y
# CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_MHP_MEMMAP_ON_MEMORY=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y
CONFIG_SPLIT_PTE_PTLOCKS=y
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_SPLIT_PMD_PTLOCKS=y
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_DEVICE_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_PCP_BATCH_SCALE_MAX=5
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
# CONFIG_HWPOISON_INJECT is not set
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANTS_THP_SWAP=y
CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
# CONFIG_TRANSPARENT_HUGEPAGE_NEVER is not set
CONFIG_THP_SWAP=y
CONFIG_READ_ONLY_THP_FOR_FS=y
CONFIG_PGTABLE_HAS_HUGE_LEAVES=y
CONFIG_ARCH_SUPPORTS_HUGE_PFNMAP=y
CONFIG_ARCH_SUPPORTS_PMD_PFNMAP=y
CONFIG_ARCH_SUPPORTS_PUD_PFNMAP=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_CMA=y
CONFIG_CMA_DEBUGFS=y
# CONFIG_CMA_SYSFS is not set
CONFIG_CMA_AREAS=7
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ARCH_HAS_PTE_DEVMAP=y
CONFIG_ARCH_HAS_ZONE_DMA_SET=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_ZONE_DEVICE=y
CONFIG_HMM_MIRROR=y
CONFIG_GET_FREE_REGION=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
CONFIG_ARCH_HAS_PKEYS=y
CONFIG_ARCH_USES_PG_ARCH_2=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PERCPU_STATS=y
# CONFIG_GUP_TEST is not set
# CONFIG_DMAPOOL_TEST is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_MEMFD_CREATE=y
# CONFIG_SECRETMEM is not set
# CONFIG_ANON_VMA_NAME is not set
CONFIG_HAVE_ARCH_USERFAULTFD_WP=y
CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y
CONFIG_USERFAULTFD=y
CONFIG_PTE_MARKER_UFFD_WP=y
# CONFIG_LRU_GEN is not set
CONFIG_ARCH_SUPPORTS_PER_VMA_LOCK=y
CONFIG_PER_VMA_LOCK=y
CONFIG_LOCK_MM_AND_FIND_VMA=y
CONFIG_IOMMU_MM_DATA=y
CONFIG_EXECMEM=y
CONFIG_NUMA_MEMBLKS=y
# CONFIG_NUMA_EMU is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_NET_XGRESS=y
CONFIG_SKB_EXTENSIONS=y
CONFIG_NET_DEVMEM=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=m
CONFIG_TLS=m
# CONFIG_TLS_DEVICE is not set
# CONFIG_TLS_TOE is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_USER_COMPAT is not set
# CONFIG_XFRM_INTERFACE is not set
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_AH=m
CONFIG_XFRM_ESP=m
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
# CONFIG_SMC is not set
CONFIG_XDP_SOCKETS=y
CONFIG_XDP_SOCKETS_DIAG=y
CONFIG_NET_HANDSHAKE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=y
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
# CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_IPVTI is not set
CONFIG_NET_UDP_TUNNEL=y
CONFIG_NET_FOU=m
# CONFIG_NET_FOU_IP_TUNNELS is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
# CONFIG_INET_ESP_OFFLOAD is not set
# CONFIG_INET_ESPINTCP is not set
CONFIG_INET_IPCOMP=m
CONFIG_INET_TABLE_PERTURB_ORDER=16
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_DIAG=m
CONFIG_INET_RAW_DIAG=m
# CONFIG_INET_DIAG_DESTROY is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_NV=y
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_TCP_CONG_DCTCP=y
# CONFIG_TCP_CONG_CDG is not set
CONFIG_TCP_CONG_BBR=y
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_DCTCP is not set
# CONFIG_DEFAULT_BBR is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_SIGPOOL=y
# CONFIG_TCP_AO is not set
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
# CONFIG_INET6_ESP_OFFLOAD is not set
# CONFIG_INET6_ESPINTCP is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_IPV6_ILA=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_GRE=m
CONFIG_IPV6_FOU=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
# CONFIG_NETLABEL is not set
CONFIG_MPTCP=y
CONFIG_INET_MPTCP_DIAG=m
CONFIG_MPTCP_IPV6=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=m

#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_INGRESS is not set
# CONFIG_NETFILTER_EGRESS is not set
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_FAMILY_BRIDGE=y
CONFIG_NETFILTER_FAMILY_ARP=y
CONFIG_NETFILTER_BPF_LINK=y
CONFIG_NETFILTER_NETLINK_ACCT=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NETFILTER_NETLINK_OSF=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_LOG_SYSLOG=m
CONFIG_NF_CONNTRACK_MARK=y
# CONFIG_NF_CONNTRACK_SECMARK is not set
# CONFIG_NF_CONNTRACK_ZONES is not set
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CONNTRACK_EVENTS is not set
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
# CONFIG_NF_CONNTRACK_LABELS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
# CONFIG_NF_CT_PROTO_SCTP is not set
# CONFIG_NF_CT_PROTO_UDPLITE is not set
# CONFIG_NF_CONNTRACK_AMANDA is not set
# CONFIG_NF_CONNTRACK_FTP is not set
# CONFIG_NF_CONNTRACK_H323 is not set
# CONFIG_NF_CONNTRACK_IRC is not set
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
# CONFIG_NF_CONNTRACK_SNMP is not set
# CONFIG_NF_CONNTRACK_PPTP is not set
# CONFIG_NF_CONNTRACK_SANE is not set
# CONFIG_NF_CONNTRACK_SIP is not set
# CONFIG_NF_CONNTRACK_TFTP is not set
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_NAT=m
CONFIG_NF_NAT_REDIRECT=y
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XTABLES_COMPAT=y

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
# CONFIG_NETFILTER_XT_CONNMARK is not set
CONFIG_NETFILTER_XT_SET=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
# CONFIG_NETFILTER_XT_TARGET_CT is not set
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_HMARK=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
# CONFIG_NETFILTER_XT_TARGET_LED is not set
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_NAT=m
# CONFIG_NETFILTER_XT_TARGET_NETMAP is not set
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
# CONFIG_NETFILTER_XT_TARGET_NOTRACK is not set
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
# CONFIG_NETFILTER_XT_TARGET_MASQUERADE is not set
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_BPF=m
CONFIG_NETFILTER_XT_MATCH_CGROUP=m
# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLABEL is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNMARK is not set
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
CONFIG_NETFILTER_XT_MATCH_HL=m
CONFIG_NETFILTER_XT_MATCH_IPCOMP=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_L2TP=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
# end of Core Netfilter Configuration

CONFIG_IP_SET=y
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPMARK=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
# CONFIG_IP_SET_HASH_IPMAC is not set
CONFIG_IP_SET_HASH_MAC=m
CONFIG_IP_SET_HASH_NETPORTNET=m
CONFIG_IP_SET_HASH_NET=m
CONFIG_IP_SET_HASH_NETNET=m
CONFIG_IP_SET_HASH_NETPORT=m
CONFIG_IP_SET_HASH_NETIFACE=m
CONFIG_IP_SET_LIST_SET=m
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_IP_NF_IPTABLES_LEGACY=m
# CONFIG_NF_SOCKET_IPV4 is not set
CONFIG_NF_TPROXY_IPV4=m
CONFIG_NF_DUP_IPV4=m
CONFIG_NF_LOG_ARP=m
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=m
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
# CONFIG_IP_NF_MATCH_RPFILTER is not set
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_SYNPROXY is not set
CONFIG_IP_NF_NAT=m
# CONFIG_IP_NF_TARGET_MASQUERADE is not set
# CONFIG_IP_NF_TARGET_NETMAP is not set
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
# CONFIG_IP_NF_SECURITY is not set
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
CONFIG_IP6_NF_IPTABLES_LEGACY=m
# CONFIG_NF_SOCKET_IPV6 is not set
CONFIG_NF_TPROXY_IPV6=m
CONFIG_NF_DUP_IPV6=m
CONFIG_NF_REJECT_IPV6=m
CONFIG_NF_LOG_IPV6=m
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RPFILTER=m
CONFIG_IP6_NF_MATCH_RT=m
# CONFIG_IP6_NF_MATCH_SRH is not set
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_TARGET_SYNPROXY is not set
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
# CONFIG_IP6_NF_SECURITY is not set
# CONFIG_IP6_NF_NAT is not set
# end of IPv6: Netfilter Configuration

CONFIG_NF_DEFRAG_IPV6=m
# CONFIG_NF_CONNTRACK_BRIDGE is not set
CONFIG_BRIDGE_NF_EBTABLES_LEGACY=m
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_VLAN_8021Q_MVRP is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_HTB=m
# CONFIG_NET_SCH_HFSC is not set
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
# CONFIG_NET_SCH_RED is not set
# CONFIG_NET_SCH_SFB is not set
CONFIG_NET_SCH_SFQ=m
# CONFIG_NET_SCH_TEQL is not set
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_CBS is not set
# CONFIG_NET_SCH_ETF is not set
CONFIG_NET_SCH_MQPRIO_LIB=m
# CONFIG_NET_SCH_TAPRIO is not set
# CONFIG_NET_SCH_GRED is not set
CONFIG_NET_SCH_NETEM=m
# CONFIG_NET_SCH_DRR is not set
CONFIG_NET_SCH_MQPRIO=m
# CONFIG_NET_SCH_SKBPRIO is not set
# CONFIG_NET_SCH_CHOKE is not set
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
CONFIG_NET_SCH_FQ_CODEL=m
# CONFIG_NET_SCH_CAKE is not set
CONFIG_NET_SCH_FQ=m
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
CONFIG_NET_SCH_INGRESS=y
# CONFIG_NET_SCH_PLUG is not set
# CONFIG_NET_SCH_ETS is not set
# CONFIG_NET_SCH_DEFAULT is not set

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
# CONFIG_NET_CLS_FLOW is not set
CONFIG_NET_CLS_CGROUP=m
CONFIG_NET_CLS_BPF=m
# CONFIG_NET_CLS_FLOWER is not set
# CONFIG_NET_CLS_MATCHALL is not set
# CONFIG_NET_EMATCH is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
# CONFIG_GACT_PROB is not set
CONFIG_NET_ACT_MIRRED=m
# CONFIG_NET_ACT_SAMPLE is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
# CONFIG_NET_ACT_CSUM is not set
# CONFIG_NET_ACT_MPLS is not set
# CONFIG_NET_ACT_VLAN is not set
CONFIG_NET_ACT_BPF=m
# CONFIG_NET_ACT_CONNMARK is not set
# CONFIG_NET_ACT_CTINFO is not set
# CONFIG_NET_ACT_SKBMOD is not set
# CONFIG_NET_ACT_IFE is not set
# CONFIG_NET_ACT_TUNNEL_KEY is not set
# CONFIG_NET_ACT_GATE is not set
# CONFIG_NET_TC_SKB_EXT is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
CONFIG_VSOCKETS=y
CONFIG_VSOCKETS_DIAG=y
CONFIG_VSOCKETS_LOOPBACK=y
# CONFIG_VIRTIO_VSOCKETS is not set
CONFIG_VIRTIO_VSOCKETS_COMMON=y
CONFIG_NETLINK_DIAG=y
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=m
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
# CONFIG_NET_NSH is not set
# CONFIG_HSR is not set
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_MAX_SKB_FRAGS=17
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_STREAM_PARSER=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_NET_DROP_MONITOR is not set
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_AF_KCM=m
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_RFKILL is not set
CONFIG_NET_9P=m
CONFIG_NET_9P_FD=m
CONFIG_NET_9P_VIRTIO=m
# CONFIG_NET_9P_RDMA is not set
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
CONFIG_PSAMPLE=y
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_NET_DEVLINK=y
CONFIG_PAGE_POOL=y
CONFIG_PAGE_POOL_STATS=y
CONFIG_FAILOVER=y
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
# CONFIG_PCIEAER_INJECT is not set
CONFIG_PCIEAER_CXL=y
# CONFIG_PCIE_ECRC is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_DPC=y
CONFIG_PCIE_PTM=y
CONFIG_PCIE_EDR=y
CONFIG_PCI_MSI=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_PF_STUB is not set
CONFIG_PCI_ATS=y
CONFIG_PCI_DOE=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_P2PDMA=y
CONFIG_PCI_LABEL=y
# CONFIG_PCIE_BUS_TUNE_OFF is not set
CONFIG_PCIE_BUS_DEFAULT=y
# CONFIG_PCIE_BUS_SAFE is not set
# CONFIG_PCIE_BUS_PERFORMANCE is not set
# CONFIG_PCIE_BUS_PEER2PEER is not set
# CONFIG_VGA_ARB is not set
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_ACPI is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set

#
# PCI controller drivers
#
CONFIG_VMD=m

#
# Cadence-based PCIe controllers
#
# end of Cadence-based PCIe controllers

#
# DesignWare-based PCIe controllers
#
# CONFIG_PCI_MESON is not set
# CONFIG_PCIE_DW_PLAT_HOST is not set
# end of DesignWare-based PCIe controllers

#
# Mobiveil-based PCIe controllers
#
# end of Mobiveil-based PCIe controllers

#
# PLDA-based PCIe controllers
#
# end of PLDA-based PCIe controllers
# end of PCI controller drivers

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
CONFIG_PCI_SW_SWITCHTEC=m
# end of PCI switch controller drivers

CONFIG_CXL_BUS=y
CONFIG_CXL_PCI=y
CONFIG_CXL_MEM_RAW_COMMANDS=y
CONFIG_CXL_ACPI=y
CONFIG_CXL_PMEM=m
CONFIG_CXL_MEM=y
CONFIG_CXL_PORT=y
CONFIG_CXL_REGION=y
# CONFIG_CXL_REGION_INVALIDATION_TEST is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_DEBUG=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
CONFIG_FW_LOADER_COMPRESS=y
CONFIG_FW_LOADER_COMPRESS_XZ=y
# CONFIG_FW_LOADER_COMPRESS_ZSTD is not set
CONFIG_FW_UPLOAD=y
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_HMEM_REPORTING=y
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_MMIO=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

#
# Cache Drivers
#
# end of Cache Drivers

# CONFIG_CONNECTOR is not set

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

CONFIG_EDD=y
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT is not set
# CONFIG_FW_CFG_SYSFS is not set
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_ESRT=y
# CONFIG_EFI_VARS_PSTORE is not set
CONFIG_EFI_SOFT_RESERVE=y
CONFIG_EFI_DXE_MEM_ATTRIBUTES=y
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_EFI_BOOTLOADER_CONTROL=m
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
# CONFIG_APPLE_PROPERTIES is not set
# CONFIG_RESET_ATTACK_MITIGATION is not set
# CONFIG_EFI_RCI2_TABLE is not set
# CONFIG_EFI_DISABLE_PCI_DMA is not set
CONFIG_EFI_EARLYCON=y
# CONFIG_EFI_CUSTOM_SSDT_OVERLAYS is not set
# CONFIG_EFI_DISABLE_RUNTIME is not set
# CONFIG_EFI_COCO_SECRET is not set
CONFIG_UNACCEPTED_MEMORY=y
# end of EFI (Extensible Firmware Interface) Support

CONFIG_UEFI_CPER=y
CONFIG_UEFI_CPER_X86=y

#
# Qualcomm firmware drivers
#
# end of Qualcomm firmware drivers

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set

#
# Partition parsers
#
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# end of Partition parsers

#
# User Modules And Translation Layers
#
# CONFIG_MTD_BLOCK is not set
# CONFIG_MTD_BLOCK_RO is not set
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
# CONFIG_RFD_FTL is not set
# CONFIG_SSFDC is not set
# CONFIG_SM_FTL is not set
# CONFIG_MTD_OOPS is not set
# CONFIG_MTD_SWAP is not set
# CONFIG_MTD_PARTITIONED_MASTER is not set

#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=y
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_GEN_PROBE=y
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_INTELEXT is not set
# CONFIG_MTD_CFI_AMDSTD is not set
# CONFIG_MTD_CFI_STAA is not set
CONFIG_MTD_CFI_UTIL=y
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
# end of RAM/ROM/Flash chip drivers

#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_PLATRAM is not set
# end of Mapping drivers for chip access

#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_DATAFLASH is not set
# CONFIG_MTD_MCHP23K256 is not set
# CONFIG_MTD_MCHP48L640 is not set
# CONFIG_MTD_SST25L is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLOCK2MTD is not set

#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
# end of Self-contained MTD device drivers

#
# NAND
#
# CONFIG_MTD_ONENAND is not set
# CONFIG_MTD_RAW_NAND is not set
# CONFIG_MTD_SPI_NAND is not set

#
# ECC engine support
#
# CONFIG_MTD_NAND_ECC_SW_HAMMING is not set
# CONFIG_MTD_NAND_ECC_SW_BCH is not set
# CONFIG_MTD_NAND_ECC_MXIC is not set
# end of ECC engine support
# end of NAND

#
# LPDDR & LPDDR2 PCM memory drivers
#
# CONFIG_MTD_LPDDR is not set
# end of LPDDR & LPDDR2 PCM memory drivers

CONFIG_MTD_SPI_NOR=m
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
# CONFIG_MTD_SPI_NOR_SWP_DISABLE is not set
CONFIG_MTD_SPI_NOR_SWP_DISABLE_ON_VOLATILE=y
# CONFIG_MTD_SPI_NOR_SWP_KEEP is not set
# CONFIG_MTD_UBI is not set
# CONFIG_MTD_HYPERBUS is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_NULL_BLK=m
CONFIG_CDROM=m
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
CONFIG_ZRAM_DEF_COMP="unset-value"
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_VIRTIO_BLK=y
# CONFIG_BLK_DEV_RBD is not set
CONFIG_BLK_DEV_UBLK=y
# CONFIG_BLKDEV_UBLK_LEGACY_OPCODES is not set

#
# NVME Support
#
CONFIG_NVME_CORE=y
CONFIG_BLK_DEV_NVME=y
# CONFIG_NVME_MULTIPATH is not set
# CONFIG_NVME_VERBOSE_ERRORS is not set
CONFIG_NVME_HWMON=y
# CONFIG_NVME_RDMA is not set
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TCP is not set
# CONFIG_NVME_HOST_AUTH is not set
# CONFIG_NVME_TARGET is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_SGI_XP is not set
CONFIG_HP_ILO=m
# CONFIG_SGI_GRU is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_NSM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_AT24=y
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
CONFIG_INTEL_MEI=m
# CONFIG_INTEL_MEI_ME is not set
CONFIG_INTEL_MEI_TXE=m
# CONFIG_INTEL_MEI_VSC_HW is not set
# CONFIG_VMWARE_VMCI is not set
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
CONFIG_BCM_VK=m
# CONFIG_BCM_VK_TTY is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_UACCE is not set
# CONFIG_PVPANIC is not set
# CONFIG_GP_PCI1XXXX is not set
# CONFIG_KEBA_CP500 is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_BLK_DEV_BSG=y
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
# CONFIG_SCSI_ISCSI_ATTRS is not set
CONFIG_SCSI_SAS_ATTRS=m
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
CONFIG_SCSI_HPSA=m
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
# CONFIG_MEGARAID_LEGACY is not set
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_MPT3SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT3SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS is not set
CONFIG_SCSI_MPI3MR=m
CONFIG_SCSI_SMARTPQI=m
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_MYRS is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_LIBFC is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FDOMAIN_PCI is not set
# CONFIG_SCSI_ISCI is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA_FC=m
# CONFIG_SCSI_QLA_ISCSI is not set
CONFIG_SCSI_LPFC=m
CONFIG_SCSI_LPFC_DEBUG_FS=y
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
CONFIG_SCSI_DEBUG=m
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_BFA_FC is not set
CONFIG_SCSI_VIRTIO=y
# CONFIG_SCSI_CHELSIO_FCOE is not set
# CONFIG_SCSI_DH is not set
# end of SCSI device support

CONFIG_ATA=y
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
CONFIG_SATA_MOBILE_LPM_POLICY=0
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_AHCI_DWC is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
# CONFIG_ATA_SFF is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_BITMAP_FILE=y
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_BCACHE=m
# CONFIG_BCACHE_DEBUG is not set
# CONFIG_BCACHE_ASYNC_REGISTRATION is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
CONFIG_DM_BUFIO=m
# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
CONFIG_DM_BIO_PRISON=m
CONFIG_DM_PERSISTENT_DATA=m
# CONFIG_DM_UNSTRIPED is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_THIN_PROVISIONING=m
CONFIG_DM_CACHE=m
CONFIG_DM_CACHE_SMQ=m
CONFIG_DM_WRITECACHE=m
# CONFIG_DM_EBS is not set
# CONFIG_DM_ERA is not set
# CONFIG_DM_CLONE is not set
CONFIG_DM_MIRROR=m
# CONFIG_DM_LOG_USERSPACE is not set
# CONFIG_DM_RAID is not set
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_QL is not set
# CONFIG_DM_MULTIPATH_ST is not set
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_DUST is not set
# CONFIG_DM_INIT is not set
# CONFIG_DM_UEVENT is not set
CONFIG_DM_FLAKEY=m
CONFIG_DM_VERITY=m
CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG=y
# CONFIG_DM_VERITY_FEC is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_DM_LOG_WRITES is not set
# CONFIG_DM_INTEGRITY is not set
# CONFIG_DM_AUDIT is not set
# CONFIG_DM_VDO is not set
# CONFIG_TARGET_CORE is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
# CONFIG_FUSION_FC is not set
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_NET_CORE=y
CONFIG_BONDING=m
CONFIG_DUMMY=m
CONFIG_WIREGUARD=y
# CONFIG_WIREGUARD_DEBUG is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
CONFIG_NET_TEAM=m
# CONFIG_NET_TEAM_MODE_BROADCAST is not set
CONFIG_NET_TEAM_MODE_ROUNDROBIN=m
# CONFIG_NET_TEAM_MODE_RANDOM is not set
CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=m
CONFIG_NET_TEAM_MODE_LOADBALANCE=m
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
CONFIG_IPVLAN_L3S=y
CONFIG_IPVLAN=y
# CONFIG_IPVTAP is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_PFCP is not set
# CONFIG_AMT is not set
# CONFIG_MACSEC is not set
CONFIG_NETCONSOLE=y
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETCONSOLE_EXTENDED_LOG=y
CONFIG_NETCONSOLE_PREPEND_RELEASE=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
CONFIG_TAP=m
# CONFIG_TUN_VNET_CROSS_LE is not set
CONFIG_VETH=m
CONFIG_VIRTIO_NET=y
# CONFIG_NLMON is not set
CONFIG_NETKIT=y
# CONFIG_NET_VRF is not set
# CONFIG_VSOCKMON is not set
# CONFIG_ARCNET is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ASIX is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_CX_ECAT is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
CONFIG_TIGON3=m
CONFIG_TIGON3_HWMON=y
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
CONFIG_BNXT=y
# CONFIG_BNXT_SRIOV is not set
# CONFIG_BNXT_FLOWER_OFFLOAD is not set
# CONFIG_BNXT_DCB is not set
CONFIG_BNXT_HWMON=y
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_NET_VENDOR_CORTINA is not set
# CONFIG_NET_VENDOR_DAVICOM is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_ENGLEDER is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_FUNGIBLE is not set
# CONFIG_NET_VENDOR_GOOGLE is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_I825XX is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_LIBETH=m
CONFIG_LIBIE=m
# CONFIG_E100 is not set
CONFIG_E1000=m
CONFIG_E1000E=m
CONFIG_E1000E_HWTS=y
CONFIG_IGB=y
CONFIG_IGB_HWMON=y
CONFIG_IGB_DCA=y
# CONFIG_IGBVF is not set
CONFIG_IXGBE=y
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCA=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGBEVF=m
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
CONFIG_ICE=m
# CONFIG_ICE_HWMON is not set
# CONFIG_ICE_SWITCHDEV is not set
# CONFIG_ICE_HWTS is not set
# CONFIG_FM10K is not set
CONFIG_IGC=m
# CONFIG_IDPF is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_ADI is not set
# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_NET_VENDOR_MELLANOX=y
CONFIG_MLX4_EN=y
CONFIG_MLX4_EN_DCB=y
CONFIG_MLX4_CORE=y
CONFIG_MLX4_DEBUG=y
CONFIG_MLX4_CORE_GEN2=y
CONFIG_MLX5_CORE=y
# CONFIG_MLX5_FPGA is not set
CONFIG_MLX5_CORE_EN=y
# CONFIG_MLX5_EN_ARFS is not set
CONFIG_MLX5_EN_RXNFC=y
CONFIG_MLX5_MPFS=y
# CONFIG_MLX5_ESWITCH is not set
CONFIG_MLX5_CORE_EN_DCB=y
CONFIG_MLX5_CORE_IPOIB=y
# CONFIG_MLX5_SF is not set
# CONFIG_MLX5_DPLL is not set
# CONFIG_MLXSW_CORE is not set
CONFIG_MLXFW=y
CONFIG_NET_VENDOR_META=y
CONFIG_FBNIC=y
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETERION is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_OA_TC6 is not set
# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
# CONFIG_NET_VENDOR_PENSANDO is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VERTEXCOM is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WANGXUN is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_XILINX is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PHYLINK=y
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set
CONFIG_FIXED_PHY=y
# CONFIG_SFP is not set

#
# MII PHY device drivers
#
# CONFIG_AIR_EN8811H_PHY is not set
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_ADIN1100_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
# CONFIG_AX88796B_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88Q2XXX_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_T1S_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_CBTX_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_NCN26000_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_QCA83XX_PHY is not set
# CONFIG_QCA808X_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_DP83TD510_PHY is not set
# CONFIG_DP83TG720_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_PSE_CONTROLLER is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_MSCC_MIIM is not set
# CONFIG_MDIO_THUNDER is not set

#
# MDIO Multiplexers
#

#
# PCS device drivers
#
# CONFIG_PCS_XPCS is not set
# end of PCS device drivers

# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=m
# CONFIG_USB_NET_AX8817X is not set
# CONFIG_USB_NET_AX88179_178A is not set
CONFIG_USB_NET_CDCETHER=m
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_VL600 is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
CONFIG_USB_RTL8153_ECM=m
# CONFIG_WLAN is not set
# CONFIG_WAN is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
CONFIG_NETDEVSIM=m
CONFIG_NET_FAILOVER=y
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_LEDS is not set
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
CONFIG_INPUT_VIVALDIFMAP=y

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADC is not set
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_APPLESPI is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_PINEPHONE is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_LEGACY_TIOCSTI is not set
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCILIB=y
CONFIG_SERIAL_8250_PCI=y
# CONFIG_SERIAL_8250_EXAR is not set
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=16
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
# CONFIG_SERIAL_8250_PCI1XXXX is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DFL is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_LPSS is not set
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_N_HDLC is not set
# CONFIG_N_GSM is not set
# CONFIG_NOZOMI is not set
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
CONFIG_VIRTIO_CONSOLE=y
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_DMI_DECODE=y
CONFIG_IPMI_PLAT_DATA=y
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
# CONFIG_IPMI_SSIF is not set
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_INTEL=y
CONFIG_HW_RANDOM_AMD=y
# CONFIG_HW_RANDOM_BA431 is not set
# CONFIG_HW_RANDOM_VIA is not set
CONFIG_HW_RANDOM_VIRTIO=m
# CONFIG_HW_RANDOM_XIPHERA is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
CONFIG_DEVMEM=y
# CONFIG_NVRAM is not set
CONFIG_DEVPORT=y
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
CONFIG_HANGCHECK_TIMER=m
# CONFIG_UV_MMTIMER is not set
CONFIG_TCG_TPM=y
CONFIG_TCG_TPM2_HMAC=y
CONFIG_HW_RANDOM_TPM=y
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_SPI is not set
# CONFIG_TCG_TIS_I2C is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
# CONFIG_TCG_TIS_ST33ZP24_I2C is not set
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
# CONFIG_TELCLOCK is not set
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
# CONFIG_ACPI_I2C_OPREGION is not set
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
CONFIG_I2C_MUX_PCA954x=y
# CONFIG_I2C_MUX_REG is not set
# CONFIG_I2C_MUX_MLXCPLD is not set
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_PIIX4=m
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
# CONFIG_I2C_ZHAOXIN is not set

#
# ACPI drivers
#
CONFIG_I2C_SCMI=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_CORE is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
CONFIG_I2C_OCORES=m
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
CONFIG_I2C_XILINX=m

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
# CONFIG_I2C_PCI1XXXX is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_MLXCPLD is not set
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
CONFIG_SPI_MEM=y

#
# SPI Master Controller Drivers
#
CONFIG_SPI_ALTERA=m
CONFIG_SPI_ALTERA_CORE=m
CONFIG_SPI_ALTERA_DFL=m
# CONFIG_SPI_AXI_SPI_ENGINE is not set
CONFIG_SPI_BITBANG=m
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_CH341 is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_INTEL_PCI is not set
# CONFIG_SPI_INTEL_PLATFORM is not set
# CONFIG_SPI_MICROCHIP_CORE is not set
# CONFIG_SPI_MICROCHIP_CORE_QSPI is not set
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PCI1XXXX is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
CONFIG_SPI_XILINX=m
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_KVM=y
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_FC3W is not set
# CONFIG_PTP_1588_CLOCK_MOCK is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
CONFIG_PTP_1588_CLOCK_OCP=m
# CONFIG_PTP_DFL_TOD is not set
# end of PTP clock support

# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_GRANITERAPIDS is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_FXL6408 is not set
# CONFIG_GPIO_DS4520 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
CONFIG_GPIO_PCA953X=y
CONFIG_GPIO_PCA953X_IRQ=y
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# CONFIG_GPIO_ELKHARTLAKE is not set
# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# USB GPIO expanders
#
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_LATCH is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

#
# GPIO Debugging utilities
#
# CONFIG_GPIO_SLOPPY_LOGIC_ANALYZER is not set
# CONFIG_GPIO_VIRTUSER is not set
# end of GPIO Debugging utilities

CONFIG_W1=m

#
# 1-wire Bus Masters
#
# CONFIG_W1_MASTER_AMD_AXI is not set
# CONFIG_W1_MASTER_MATROX is not set
# CONFIG_W1_MASTER_DS2490 is not set
CONFIG_W1_MASTER_DS2482=m
# CONFIG_W1_MASTER_GPIO is not set
# CONFIG_W1_MASTER_SGI is not set
# end of 1-wire Bus Masters

#
# 1-wire Slaves
#
# CONFIG_W1_SLAVE_THERM is not set
# CONFIG_W1_SLAVE_SMEM is not set
# CONFIG_W1_SLAVE_DS2405 is not set
# CONFIG_W1_SLAVE_DS2408 is not set
# CONFIG_W1_SLAVE_DS2413 is not set
# CONFIG_W1_SLAVE_DS2406 is not set
# CONFIG_W1_SLAVE_DS2423 is not set
# CONFIG_W1_SLAVE_DS2805 is not set
# CONFIG_W1_SLAVE_DS2430 is not set
# CONFIG_W1_SLAVE_DS2431 is not set
# CONFIG_W1_SLAVE_DS2433 is not set
# CONFIG_W1_SLAVE_DS2438 is not set
# CONFIG_W1_SLAVE_DS250X is not set
# CONFIG_W1_SLAVE_DS2780 is not set
# CONFIG_W1_SLAVE_DS2781 is not set
# CONFIG_W1_SLAVE_DS28E04 is not set
# CONFIG_W1_SLAVE_DS28E17 is not set
# end of 1-wire Slaves

# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SEQUENCING is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_GENERIC_ADC_BATTERY is not set
# CONFIG_IP5XXX_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SAMSUNG_SDI is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_BATTERY_MAX1720X is not set
# CONFIG_BATTERY_MAX1721X is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_RT9467 is not set
# CONFIG_CHARGER_RT9471 is not set
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_UG3105 is not set
# CONFIG_FUEL_GAUGE_MM8013 is not set
CONFIG_HWMON=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7314 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM1177 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set
# CONFIG_SENSORS_AS370 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ASUS_ROG_RYUJIN is not set
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_CHIPCAP2 is not set
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_DELL_SMM is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_FTSTEUTATES is not set
# CONFIG_SENSORS_GIGABYTE_WATERFORCE is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_HS3001 is not set
# CONFIG_SENSORS_IBMAEM is not set
# CONFIG_SENSORS_IBMPEX is not set
# CONFIG_SENSORS_IIO_HWMON is not set
# CONFIG_SENSORS_I5500 is not set
CONFIG_SENSORS_CORETEMP=m
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWERZ is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LENOVO_EC is not set
# CONFIG_SENSORS_LINEAGE is not set
CONFIG_SENSORS_LTC2945=y
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2991 is not set
# CONFIG_SENSORS_LTC2992 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_LTC4282 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX31760 is not set
# CONFIG_MAX31827 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6650 is not set
CONFIG_SENSORS_MAX6697=y
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MC34VR500 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_MLXREG_FAN is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
CONFIG_SENSORS_LM73=y
CONFIG_SENSORS_LM75=y
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
CONFIG_SENSORS_LM90=y
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT6775_I2C is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_NZXT_KRAKEN2 is not set
# CONFIG_SENSORS_NZXT_KRAKEN3 is not set
# CONFIG_SENSORS_NZXT_SMART2 is not set
# CONFIG_SENSORS_OCC_P8_I2C is not set
# CONFIG_SENSORS_OXP is not set
# CONFIG_SENSORS_PCF8591 is not set
CONFIG_PMBUS=y
CONFIG_SENSORS_PMBUS=y
# CONFIG_SENSORS_ACBEL_FSG032 is not set
# CONFIG_SENSORS_ADM1266 is not set
CONFIG_SENSORS_ADM1275=m
# CONFIG_SENSORS_ADP1050 is not set
# CONFIG_SENSORS_BEL_PFE is not set
# CONFIG_SENSORS_BPA_RS600 is not set
# CONFIG_SENSORS_DELTA_AHE50DC_FAN is not set
# CONFIG_SENSORS_FSP_3Y is not set
# CONFIG_SENSORS_IBM_CFFPS is not set
# CONFIG_SENSORS_DPS920AB is not set
# CONFIG_SENSORS_INSPUR_IPSPS is not set
# CONFIG_SENSORS_IR35221 is not set
# CONFIG_SENSORS_IR36021 is not set
# CONFIG_SENSORS_IR38064 is not set
# CONFIG_SENSORS_IRPS5401 is not set
CONFIG_SENSORS_ISL68137=m
# CONFIG_SENSORS_LM25066 is not set
# CONFIG_SENSORS_LT7182S is not set
CONFIG_SENSORS_LTC2978=m
# CONFIG_SENSORS_LTC2978_REGULATOR is not set
# CONFIG_SENSORS_LTC3815 is not set
# CONFIG_SENSORS_LTC4286 is not set
# CONFIG_SENSORS_MAX15301 is not set
# CONFIG_SENSORS_MAX16064 is not set
# CONFIG_SENSORS_MAX16601 is not set
# CONFIG_SENSORS_MAX20730 is not set
# CONFIG_SENSORS_MAX20751 is not set
# CONFIG_SENSORS_MAX31785 is not set
# CONFIG_SENSORS_MAX34440 is not set
# CONFIG_SENSORS_MAX8688 is not set
# CONFIG_SENSORS_MP2856 is not set
# CONFIG_SENSORS_MP2888 is not set
# CONFIG_SENSORS_MP2891 is not set
CONFIG_SENSORS_MP2975=m
# CONFIG_SENSORS_MP2993 is not set
# CONFIG_SENSORS_MP2975_REGULATOR is not set
# CONFIG_SENSORS_MP5023 is not set
# CONFIG_SENSORS_MP5920 is not set
# CONFIG_SENSORS_MP5990 is not set
# CONFIG_SENSORS_MP9941 is not set
# CONFIG_SENSORS_MPQ7932 is not set
# CONFIG_SENSORS_MPQ8785 is not set
# CONFIG_SENSORS_PIM4328 is not set
# CONFIG_SENSORS_PLI1209BC is not set
# CONFIG_SENSORS_PM6764TR is not set
CONFIG_SENSORS_PXE1610=m
# CONFIG_SENSORS_Q54SJ108A2 is not set
# CONFIG_SENSORS_STPDDC60 is not set
# CONFIG_SENSORS_TDA38640 is not set
# CONFIG_SENSORS_TPS40422 is not set
CONFIG_SENSORS_TPS53679=y
# CONFIG_SENSORS_TPS546D24 is not set
CONFIG_SENSORS_UCD9000=y
# CONFIG_SENSORS_UCD9200 is not set
# CONFIG_SENSORS_XDP710 is not set
# CONFIG_SENSORS_XDPE152 is not set
# CONFIG_SENSORS_XDPE122 is not set
# CONFIG_SENSORS_ZL6100 is not set
# CONFIG_SENSORS_PT5161L is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC2305 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_STTS751 is not set
CONFIG_SENSORS_ADC128D818=m
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_SPD5118 is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
# CONFIG_SENSORS_TMP401 is not set
CONFIG_SENSORS_TMP421=y
# CONFIG_SENSORS_TMP464 is not set
# CONFIG_SENSORS_TMP513 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83773G is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_XGENE is not set

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
# CONFIG_SENSORS_ASUS_WMI is not set
# CONFIG_SENSORS_ASUS_EC is not set
# CONFIG_SENSORS_HP_WMI is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
# CONFIG_THERMAL_STATISTICS is not set
# CONFIG_THERMAL_DEBUGFS is not set
# CONFIG_THERMAL_CORE_TESTING is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set

#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_INTEL_TCC=y
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# end of ACPI INT340X thermal drivers

CONFIG_INTEL_PCH_THERMAL=y
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_HFI_THERMAL is not set
# end of Intel thermal drivers

# CONFIG_GENERIC_ADC_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
# CONFIG_WATCHDOG_SYSFS is not set
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_LENOVO_SE10_WDT is not set
# CONFIG_WDAT_WDT is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_MLX_WDT is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ADVANTECH_EC_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_EBC_C384_WDT is not set
# CONFIG_EXAR_WDT is not set
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_IE6XX_WDT is not set
CONFIG_ITCO_WDT=m
CONFIG_ITCO_VENDOR_SUPPORT=y
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_INTEL_MEI_WDT is not set
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_SMPRO is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_CS42L43_I2C is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=m
CONFIG_LPC_SCH=m
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
# CONFIG_MFD_INTEL_LPSS_PCI is not set
# CONFIG_MFD_INTEL_PMC_BXT is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77541 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6370 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_OCELOT is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_SY7636A is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RT5120 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS6594_I2C is not set
# CONFIG_MFD_TPS6594_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_CS40L50_I2C is not set
# CONFIG_MFD_CS40L50_SPI is not set
# CONFIG_MFD_INTEL_M10_BMC_SPI is not set
# CONFIG_MFD_INTEL_M10_BMC_PMCI is not set
# end of Multifunction device drivers

CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_NETLINK_EVENTS is not set
# CONFIG_REGULATOR_88PG86X is not set
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_AW37503 is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_DA9211 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX77503 is not set
# CONFIG_REGULATOR_MAX77857 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8893 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX20086 is not set
# CONFIG_REGULATOR_MAX20411 is not set
# CONFIG_REGULATOR_MAX77826 is not set
# CONFIG_REGULATOR_MP8859 is not set
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_PCA9450 is not set
# CONFIG_REGULATOR_PV88060 is not set
# CONFIG_REGULATOR_PV88080 is not set
# CONFIG_REGULATOR_PV88090 is not set
# CONFIG_REGULATOR_RAA215300 is not set
# CONFIG_REGULATOR_RT4801 is not set
# CONFIG_REGULATOR_RT4803 is not set
# CONFIG_REGULATOR_RT5190A is not set
# CONFIG_REGULATOR_RT5739 is not set
# CONFIG_REGULATOR_RT5759 is not set
# CONFIG_REGULATOR_RT6160 is not set
# CONFIG_REGULATOR_RT6190 is not set
# CONFIG_REGULATOR_RT6245 is not set
# CONFIG_REGULATOR_RTQ2134 is not set
# CONFIG_REGULATOR_RTMV20 is not set
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_RTQ2208 is not set
# CONFIG_REGULATOR_SLG51000 is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_REGULATOR_TPS65132 is not set
# CONFIG_REGULATOR_TPS6524X is not set
# CONFIG_RC_CORE is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_APERTURE_HELPERS=y
CONFIG_VIDEO=y
# CONFIG_AUXDISPLAY is not set
CONFIG_AGP=m
# CONFIG_AGP_AMD64 is not set
CONFIG_AGP_INTEL=m
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_INTEL_GTT=m
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=m
# CONFIG_DRM_DEBUG_MM is not set
CONFIG_DRM_KMS_HELPER=m
# CONFIG_DRM_PANIC is not set
# CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS is not set
# CONFIG_DRM_DEBUG_MODESET_LOCK is not set
# CONFIG_DRM_FBDEV_EMULATION is not set
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_DISPLAY_HELPER=m
# CONFIG_DRM_DISPLAY_DP_AUX_CEC is not set
# CONFIG_DRM_DISPLAY_DP_AUX_CHARDEV is not set
CONFIG_DRM_DISPLAY_DP_HELPER=y
CONFIG_DRM_DISPLAY_HDCP_HELPER=y
CONFIG_DRM_DISPLAY_HDMI_HELPER=y
CONFIG_DRM_TTM=m
CONFIG_DRM_EXEC=m
CONFIG_DRM_BUDDY=m
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_SUBALLOC_HELPER=m
CONFIG_DRM_SCHED=m

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set
# end of I2C encoder or helper chips

#
# ARM devices
#
# end of ARM devices

# CONFIG_DRM_RADEON is not set
CONFIG_DRM_AMDGPU=m
# CONFIG_DRM_AMDGPU_SI is not set
# CONFIG_DRM_AMDGPU_CIK is not set
CONFIG_DRM_AMDGPU_USERPTR=y
# CONFIG_DRM_AMD_ISP is not set
# CONFIG_DRM_AMDGPU_WERROR is not set

#
# ACP (Audio CoProcessor) Configuration
#
# CONFIG_DRM_AMD_ACP is not set
# end of ACP (Audio CoProcessor) Configuration

#
# Display Engine Configuration
#
CONFIG_DRM_AMD_DC=y
CONFIG_DRM_AMD_DC_FP=y
# CONFIG_DRM_AMD_SECURE_DISPLAY is not set
# end of Display Engine Configuration

CONFIG_HSA_AMD=y
CONFIG_HSA_AMD_SVM=y
CONFIG_HSA_AMD_P2P=y
# CONFIG_DRM_NOUVEAU is not set
# CONFIG_DRM_I915 is not set
# CONFIG_DRM_XE is not set
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_VIRTIO_GPU is not set
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_AUO_A030JTN01 is not set
# CONFIG_DRM_PANEL_ILITEK_ILI9341 is not set
# CONFIG_DRM_PANEL_ORISETECH_OTA5601A is not set
# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set
# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# end of Display Interface Bridges

# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=m
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_GM12U320 is not set
# CONFIG_DRM_PANEL_MIPI_DBI is not set
# CONFIG_DRM_SIMPLEDRM is not set
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9163 is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_ST7586 is not set
# CONFIG_TINYDRM_ST7735R is not set
# CONFIG_DRM_VBOXVIDEO is not set
# CONFIG_DRM_GUD is not set
# CONFIG_DRM_SSD130X is not set
# CONFIG_DRM_WERROR is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=m

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_KTD2801 is not set
# CONFIG_BACKLIGHT_KTZ8866 is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3509 is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# end of Backlight & LCD device support

CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
# end of Console display driver support
# end of Graphics support

# CONFIG_DRM_ACCEL is not set
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACCUTOUCH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_ASUS is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_BIGBEN_FF is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CREATIVE_SB0540 is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELAN is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
# CONFIG_HID_EVISION is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_GOODIX_SPI is not set
# CONFIG_HID_GOOGLE_STADIA_FF is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_GT683R is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_VRC2 is not set
# CONFIG_HID_XIAOMI is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_ITE is not set
# CONFIG_HID_JABRA is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LED is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LETSKETCH is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_MEGAWORLD_FF is not set
# CONFIG_HID_REDRAGON is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NINTENDO is not set
# CONFIG_HID_NTI is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PLAYSTATION is not set
# CONFIG_HID_PXRC is not set
# CONFIG_HID_RAZER is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SIGMAMICRO is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEAM is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_TOPRE is not set
# CONFIG_HID_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_U2FZERO is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_WINWING is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
# CONFIG_HID_ALPS is not set
# CONFIG_HID_MCP2200 is not set
# CONFIG_HID_MCP2221 is not set
# end of Special HID drivers

#
# HID-BPF support
#
# CONFIG_HID_BPF is not set
# end of HID-BPF support

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
# end of USB HID support

CONFIG_I2C_HID=y
# CONFIG_I2C_HID_ACPI is not set
# CONFIG_I2C_HID_OF is not set

#
# Intel ISH HID support
#
# CONFIG_INTEL_ISH_HID is not set
# end of Intel ISH HID support

#
# AMD SFH HID Support
#
# CONFIG_AMD_SFH_HID is not set
# end of AMD SFH HID Support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
CONFIG_USB_PCI_AMD=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
# CONFIG_USB_OTG_DISABLE_EXTERNAL_HUB is not set
# CONFIG_USB_LEDS_TRIGGER_USBPORT is not set
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_DEFAULT_AUTHORIZATION_MODE=1
# CONFIG_USB_MON is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=m
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=m
# CONFIG_USB_XHCI_PCI_RENESAS is not set
# CONFIG_USB_XHCI_PLATFORM is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_FSL is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PCI=m
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
CONFIG_USBIP_CORE=m
CONFIG_USBIP_VHCI_HCD=m
CONFIG_USBIP_VHCI_HC_PORTS=8
CONFIG_USBIP_VHCI_NR_HCS=1
# CONFIG_USBIP_HOST is not set
# CONFIG_USBIP_DEBUG is not set

#
# USB dual-mode controller drivers
#
# CONFIG_USB_CDNS_SUPPORT is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_CONSOLE=y
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_SIMPLE is not set
# CONFIG_USB_SERIAL_AIRCABLE is not set
CONFIG_USB_SERIAL_ARK3116=y
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_CH341 is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_CP210X is not set
# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
# CONFIG_USB_SERIAL_EMPEG is not set
CONFIG_USB_SERIAL_FTDI_SIO=m
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
# CONFIG_USB_SERIAL_F81232 is not set
# CONFIG_USB_SERIAL_F8153X is not set
# CONFIG_USB_SERIAL_GARMIN is not set
# CONFIG_USB_SERIAL_IPW is not set
# CONFIG_USB_SERIAL_IUU is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_KOBIL_SCT is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_METRO is not set
# CONFIG_USB_SERIAL_MOS7720 is not set
# CONFIG_USB_SERIAL_MOS7840 is not set
# CONFIG_USB_SERIAL_MXUPORT is not set
# CONFIG_USB_SERIAL_NAVMAN is not set
CONFIG_USB_SERIAL_PL2303=y
# CONFIG_USB_SERIAL_OTI6858 is not set
# CONFIG_USB_SERIAL_QCAUX is not set
# CONFIG_USB_SERIAL_QUALCOMM is not set
# CONFIG_USB_SERIAL_SPCP8X5 is not set
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
# CONFIG_USB_SERIAL_SYMBOL is not set
# CONFIG_USB_SERIAL_TI is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_OPTION is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_SERIAL_OPTICON is not set
# CONFIG_USB_SERIAL_XSENS_MT is not set
# CONFIG_USB_SERIAL_WISHBONE is not set
# CONFIG_USB_SERIAL_SSU100 is not set
# CONFIG_USB_SERIAL_QT2 is not set
# CONFIG_USB_SERIAL_UPD78F0730 is not set
# CONFIG_USB_SERIAL_XR is not set
# CONFIG_USB_SERIAL_DEBUG is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_LJCA is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# end of USB Physical Layer drivers

# CONFIG_USB_GADGET is not set
# CONFIG_TYPEC is not set
# CONFIG_USB_ROLE_SWITCH is not set
# CONFIG_MMC is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=m
# CONFIG_LEDS_CLASS_FLASH is not set
CONFIG_LEDS_CLASS_MULTICOLOR=m
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
# CONFIG_LEDS_APU is not set
# CONFIG_LEDS_AW200XX is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_PCA995X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2606MVV is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_IS31FL319X is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
# CONFIG_LEDS_MLXCPLD is not set
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_SPI_BYTE is not set

#
# Flash and Torch LED drivers
#

#
# RGB LED drivers
#
# CONFIG_LEDS_KTD202X is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_DISK is not set
# CONFIG_LEDS_TRIGGER_MTD is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
# CONFIG_LEDS_TRIGGER_TTY is not set
# CONFIG_LEDS_TRIGGER_INPUT_EVENTS is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=y
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ON_DEMAND_PAGING=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS=y
CONFIG_INFINIBAND_VIRT_DMA=y
CONFIG_INFINIBAND_BNXT_RE=m
# CONFIG_INFINIBAND_EFA is not set
# CONFIG_INFINIBAND_ERDMA is not set
# CONFIG_INFINIBAND_HFI1 is not set
# CONFIG_MLX4_INFINIBAND is not set
CONFIG_MLX5_INFINIBAND=m
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
# CONFIG_INFINIBAND_OCRDMA is not set
# CONFIG_INFINIBAND_QIB is not set
# CONFIG_INFINIBAND_USNIC is not set
CONFIG_INFINIBAND_RDMAVT=m
CONFIG_RDMA_RXE=m
# CONFIG_RDMA_SIW is not set
# CONFIG_INFINIBAND_IPOIB is not set
# CONFIG_INFINIBAND_SRP is not set
# CONFIG_INFINIBAND_ISER is not set
# CONFIG_INFINIBAND_RTRS_CLIENT is not set
# CONFIG_INFINIBAND_RTRS_SERVER is not set
# CONFIG_INFINIBAND_OPA_VNIC is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
# CONFIG_EDAC_LEGACY_SYSFS is not set
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_DECODE_MCE=y
# CONFIG_EDAC_GHES is not set
CONFIG_EDAC_AMD64=y
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_IE31200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
CONFIG_EDAC_SBRIDGE=m
CONFIG_EDAC_SKX=m
CONFIG_EDAC_I10NM=m
# CONFIG_EDAC_PND2 is not set
# CONFIG_EDAC_IGEN6 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_MAX31335 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8111 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD2405AL is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_RP5C01 is not set

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
# CONFIG_ALTERA_MSGDMA is not set
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_INTEL_IDXD is not set
# CONFIG_INTEL_IDXD_COMPAT is not set
CONFIG_INTEL_IOATDMA=y
# CONFIG_PLX_DMA is not set
# CONFIG_XILINX_DMA is not set
# CONFIG_XILINX_XDMA is not set
# CONFIG_AMD_QDMA is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_DW_EDMA is not set
CONFIG_HSU_DMA=y
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
CONFIG_DMABUF_MOVE_NOTIFY=y
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options

CONFIG_DCA=y
CONFIG_UIO=m
# CONFIG_UIO_CIF is not set
# CONFIG_UIO_PDRV_GENIRQ is not set
# CONFIG_UIO_DMEM_GENIRQ is not set
# CONFIG_UIO_AEC is not set
# CONFIG_UIO_SERCOS3 is not set
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_UIO_MF624 is not set
# CONFIG_UIO_DFL is not set
CONFIG_VFIO=m
CONFIG_VFIO_GROUP=y
CONFIG_VFIO_CONTAINER=y
CONFIG_VFIO_IOMMU_TYPE1=m
# CONFIG_VFIO_NOIOMMU is not set
CONFIG_VFIO_VIRQFD=y
# CONFIG_VFIO_DEBUGFS is not set

#
# VFIO support for PCI devices
#
CONFIG_VFIO_PCI_CORE=m
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=m
CONFIG_VFIO_PCI_IGD=y
# CONFIG_MLX5_VFIO_PCI is not set
# CONFIG_VIRTIO_VFIO_PCI is not set
# CONFIG_QAT_VFIO_PCI is not set
# end of VFIO support for PCI devices

CONFIG_IRQ_BYPASS_MANAGER=y
CONFIG_VIRT_DRIVERS=y
# CONFIG_VMGENID is not set
# CONFIG_VBOXGUEST is not set
# CONFIG_NITRO_ENCLAVES is not set
CONFIG_TSM_REPORTS=m
# CONFIG_EFI_SECRET is not set
CONFIG_SEV_GUEST=m
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_ADMIN_LEGACY=y
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_PMEM is not set
CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_MEM=m
# CONFIG_VIRTIO_INPUT is not set
CONFIG_VIRTIO_MMIO=m
# CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES is not set
# CONFIG_VIRTIO_DEBUG is not set
# CONFIG_VDPA is not set
CONFIG_VHOST_IOTLB=m
CONFIG_VHOST_TASK=y
CONFIG_VHOST=m
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_VSOCK=m
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_CZNIC_PLATFORMS is not set
CONFIG_MELLANOX_PLATFORM=y
# CONFIG_MLXREG_HOTPLUG is not set
# CONFIG_MLXREG_IO is not set
# CONFIG_MLXREG_LC is not set
# CONFIG_NVSW_SN2201 is not set
# CONFIG_SURFACE_PLATFORMS is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
# CONFIG_WMI_BMOF is not set
# CONFIG_HUAWEI_WMI is not set
# CONFIG_UV_SYSFS is not set
# CONFIG_MXM_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_YOGABOOK is not set
# CONFIG_ACERHDF is not set
# CONFIG_ACER_WIRELESS is not set
# CONFIG_ACER_WMI is not set
CONFIG_AMD_HSMP=m
# CONFIG_AMD_WBRF is not set
# CONFIG_ADV_SWBUTTON is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_ASUS_WIRELESS is not set
# CONFIG_ASUS_WMI is not set
# CONFIG_ASUS_TF103C_DOCK is not set
# CONFIG_EEEPC_LAPTOP is not set
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_X86_PLATFORM_DRIVERS_HP is not set
# CONFIG_WIRELESS_HOTKEY is not set
# CONFIG_IBM_RTL is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_THINKPAD_LMI is not set
CONFIG_INTEL_IFS=m
# CONFIG_INTEL_SAR_INT1092 is not set
# CONFIG_INTEL_SKL_INT3472 is not set
# CONFIG_INTEL_PMT_TELEMETRY is not set
# CONFIG_INTEL_PMT_CRASHLOG is not set

#
# Intel Speed Select Technology interface support
#
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# end of Intel Speed Select Technology interface support

# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
# CONFIG_INTEL_WMI_THUNDERBOLT is not set

#
# Intel Uncore Frequency Control
#
CONFIG_INTEL_UNCORE_FREQ_CONTROL_TPMI=m
CONFIG_INTEL_UNCORE_FREQ_CONTROL=m
# end of Intel Uncore Frequency Control

# CONFIG_INTEL_HID_EVENT is not set
# CONFIG_INTEL_VBTN is not set
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SDSI is not set
# CONFIG_INTEL_SMARTCONNECT is not set
CONFIG_INTEL_TPMI_POWER_DOMAINS=m
CONFIG_INTEL_TPMI=m
# CONFIG_INTEL_PLR_TPMI is not set
CONFIG_INTEL_VSEC=m
# CONFIG_ACPI_QUICKSTART is not set
# CONFIG_MEEGOPAD_ANX7428 is not set
# CONFIG_MSI_EC is not set
# CONFIG_MSI_WMI is not set
# CONFIG_MSI_WMI_PLATFORM is not set
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_BARCO_P50_GPIO is not set
# CONFIG_SAMSUNG_LAPTOP is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_ACPI_TOSHIBA is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_LG_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_SYSTEM76_ACPI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_SERIAL_MULTI_INSTANTIATE is not set
# CONFIG_MLX_PLATFORM is not set
# CONFIG_INSPUR_PLATFORM_PROFILE is not set
# CONFIG_LENOVO_WMI_CAMERA is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
# CONFIG_SILICOM_PLATFORM is not set
# CONFIG_WINMATE_FM07_KEYS is not set
CONFIG_P2SB=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers

CONFIG_MAILBOX=y
CONFIG_PCC=y
# CONFIG_ALTERA_MBOX is not set
CONFIG_IOMMU_IOVA=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IO_PGTABLE=y
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_SVA=y
CONFIG_IOMMU_IOPF=y
CONFIG_AMD_IOMMU=y
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
# CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON is not set
# CONFIG_INTEL_IOMMU_PERF_EVENTS is not set
# CONFIG_IOMMUFD is not set
CONFIG_IRQ_REMAP=y
# CONFIG_VIRTIO_IOMMU is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers

# CONFIG_WPCM450_SOC is not set

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

#
# PM Domains
#

#
# Amlogic PM Domains
#
# end of Amlogic PM Domains

#
# Broadcom PM Domains
#
# end of Broadcom PM Domains

#
# i.MX PM Domains
#
# end of i.MX PM Domains

#
# Qualcomm PM Domains
#
# end of Qualcomm PM Domains
# end of PM Domains

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
CONFIG_MEMORY=y
CONFIG_FPGA_DFL_EMIF=m
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
# CONFIG_IIO_BUFFER_CB is not set
# CONFIG_IIO_BUFFER_DMA is not set
# CONFIG_IIO_BUFFER_DMAENGINE is not set
# CONFIG_IIO_BUFFER_HW_CONSUMER is not set
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=y
# CONFIG_IIO_CONFIGFS is not set
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
# CONFIG_IIO_SW_DEVICE is not set
# CONFIG_IIO_SW_TRIGGER is not set
# CONFIG_IIO_TRIGGERED_EVENT is not set

#
# Accelerometers
#
# CONFIG_ADIS16201 is not set
# CONFIG_ADIS16209 is not set
# CONFIG_ADXL313_I2C is not set
# CONFIG_ADXL313_SPI is not set
# CONFIG_ADXL345_I2C is not set
# CONFIG_ADXL345_SPI is not set
# CONFIG_ADXL355_I2C is not set
# CONFIG_ADXL355_SPI is not set
# CONFIG_ADXL367_SPI is not set
# CONFIG_ADXL367_I2C is not set
# CONFIG_ADXL372_SPI is not set
# CONFIG_ADXL372_I2C is not set
# CONFIG_ADXL380_SPI is not set
# CONFIG_ADXL380_I2C is not set
# CONFIG_BMA180 is not set
# CONFIG_BMA220 is not set
# CONFIG_BMA400 is not set
# CONFIG_BMC150_ACCEL is not set
# CONFIG_BMI088_ACCEL is not set
# CONFIG_DA280 is not set
# CONFIG_DA311 is not set
# CONFIG_DMARD06 is not set
# CONFIG_DMARD09 is not set
# CONFIG_DMARD10 is not set
# CONFIG_FXLS8962AF_I2C is not set
# CONFIG_FXLS8962AF_SPI is not set
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
# CONFIG_IIO_KX022A_SPI is not set
# CONFIG_IIO_KX022A_I2C is not set
# CONFIG_KXSD9 is not set
# CONFIG_KXCJK1013 is not set
# CONFIG_MC3230 is not set
# CONFIG_MMA7455_I2C is not set
# CONFIG_MMA7455_SPI is not set
# CONFIG_MMA7660 is not set
# CONFIG_MMA8452 is not set
# CONFIG_MMA9551 is not set
# CONFIG_MMA9553 is not set
# CONFIG_MSA311 is not set
# CONFIG_MXC4005 is not set
# CONFIG_MXC6255 is not set
# CONFIG_SCA3000 is not set
# CONFIG_SCA3300 is not set
# CONFIG_STK8312 is not set
# CONFIG_STK8BA50 is not set
# end of Accelerometers

#
# Analog to digital converters
#
# CONFIG_AD4000 is not set
# CONFIG_AD4130 is not set
# CONFIG_AD4695 is not set
# CONFIG_AD7091R5 is not set
# CONFIG_AD7091R8 is not set
# CONFIG_AD7124 is not set
# CONFIG_AD7173 is not set
# CONFIG_AD7192 is not set
# CONFIG_AD7266 is not set
# CONFIG_AD7280 is not set
# CONFIG_AD7291 is not set
# CONFIG_AD7292 is not set
# CONFIG_AD7298 is not set
# CONFIG_AD7380 is not set
# CONFIG_AD7476 is not set
# CONFIG_AD7606_IFACE_PARALLEL is not set
# CONFIG_AD7606_IFACE_SPI is not set
# CONFIG_AD7766 is not set
# CONFIG_AD7768_1 is not set
# CONFIG_AD7780 is not set
# CONFIG_AD7791 is not set
# CONFIG_AD7793 is not set
# CONFIG_AD7887 is not set
# CONFIG_AD7923 is not set
# CONFIG_AD7944 is not set
# CONFIG_AD7949 is not set
# CONFIG_AD799X is not set
# CONFIG_AD9467 is not set
# CONFIG_CC10001_ADC is not set
# CONFIG_ENVELOPE_DETECTOR is not set
# CONFIG_HI8435 is not set
# CONFIG_HX711 is not set
# CONFIG_INA2XX_ADC is not set
# CONFIG_LTC2309 is not set
# CONFIG_LTC2471 is not set
# CONFIG_LTC2485 is not set
# CONFIG_LTC2496 is not set
CONFIG_LTC2497=m
# CONFIG_MAX1027 is not set
# CONFIG_MAX11100 is not set
# CONFIG_MAX1118 is not set
# CONFIG_MAX11205 is not set
# CONFIG_MAX11410 is not set
# CONFIG_MAX1241 is not set
CONFIG_MAX1363=m
# CONFIG_MAX34408 is not set
# CONFIG_MAX9611 is not set
# CONFIG_MCP320X is not set
# CONFIG_MCP3422 is not set
# CONFIG_MCP3564 is not set
# CONFIG_MCP3911 is not set
# CONFIG_NAU7802 is not set
# CONFIG_PAC1921 is not set
# CONFIG_PAC1934 is not set
# CONFIG_RICHTEK_RTQ6056 is not set
# CONFIG_SD_ADC_MODULATOR is not set
# CONFIG_TI_ADC081C is not set
# CONFIG_TI_ADC0832 is not set
# CONFIG_TI_ADC084S021 is not set
# CONFIG_TI_ADC12138 is not set
# CONFIG_TI_ADC108S102 is not set
# CONFIG_TI_ADC128S052 is not set
# CONFIG_TI_ADC161S626 is not set
# CONFIG_TI_ADS1015 is not set
# CONFIG_TI_ADS1119 is not set
# CONFIG_TI_ADS7924 is not set
# CONFIG_TI_ADS1100 is not set
# CONFIG_TI_ADS1298 is not set
# CONFIG_TI_ADS7950 is not set
# CONFIG_TI_ADS8344 is not set
# CONFIG_TI_ADS8688 is not set
# CONFIG_TI_ADS124S08 is not set
# CONFIG_TI_ADS131E08 is not set
# CONFIG_TI_LMP92064 is not set
# CONFIG_TI_TLC4541 is not set
# CONFIG_TI_TSC2046 is not set
# CONFIG_VF610_ADC is not set
# CONFIG_XILINX_XADC is not set
# end of Analog to digital converters

#
# Analog to digital and digital to analog converters
#
# CONFIG_AD74115 is not set
# CONFIG_AD74413R is not set
# end of Analog to digital and digital to analog converters

#
# Analog Front Ends
#
# CONFIG_IIO_RESCALE is not set
# end of Analog Front Ends

#
# Amplifiers
#
# CONFIG_AD8366 is not set
# CONFIG_ADA4250 is not set
# CONFIG_HMC425 is not set
# end of Amplifiers

#
# Capacitance to digital converters
#
# CONFIG_AD7150 is not set
# CONFIG_AD7746 is not set
# end of Capacitance to digital converters

#
# Chemical Sensors
#
# CONFIG_AOSONG_AGS02MA is not set
# CONFIG_ATLAS_PH_SENSOR is not set
# CONFIG_ATLAS_EZO_SENSOR is not set
# CONFIG_BME680 is not set
# CONFIG_CCS811 is not set
# CONFIG_ENS160 is not set
# CONFIG_IAQCORE is not set
# CONFIG_SCD30_CORE is not set
# CONFIG_SCD4X is not set
# CONFIG_SENSIRION_SGP30 is not set
# CONFIG_SENSIRION_SGP40 is not set
# CONFIG_SPS30_I2C is not set
# CONFIG_SENSEAIR_SUNRISE_CO2 is not set
# CONFIG_VZ89X is not set
# end of Chemical Sensors

#
# Hid Sensor IIO Common
#
# end of Hid Sensor IIO Common

#
# IIO SCMI Sensors
#
# end of IIO SCMI Sensors

#
# SSP Sensor Common
#
# CONFIG_IIO_SSP_SENSORHUB is not set
# end of SSP Sensor Common

#
# Digital to analog converters
#
# CONFIG_AD3552R is not set
# CONFIG_AD5064 is not set
# CONFIG_AD5360 is not set
# CONFIG_AD5380 is not set
# CONFIG_AD5421 is not set
# CONFIG_AD5446 is not set
# CONFIG_AD5449 is not set
# CONFIG_AD5592R is not set
# CONFIG_AD5593R is not set
# CONFIG_AD5504 is not set
# CONFIG_AD5624R_SPI is not set
# CONFIG_AD9739A is not set
# CONFIG_LTC2688 is not set
# CONFIG_AD5686_SPI is not set
# CONFIG_AD5696_I2C is not set
# CONFIG_AD5755 is not set
# CONFIG_AD5758 is not set
# CONFIG_AD5761 is not set
# CONFIG_AD5764 is not set
# CONFIG_AD5766 is not set
# CONFIG_AD5770R is not set
# CONFIG_AD5791 is not set
# CONFIG_AD7293 is not set
# CONFIG_AD7303 is not set
# CONFIG_AD8801 is not set
# CONFIG_DPOT_DAC is not set
# CONFIG_DS4424 is not set
# CONFIG_LTC1660 is not set
# CONFIG_LTC2632 is not set
# CONFIG_LTC2664 is not set
# CONFIG_M62332 is not set
# CONFIG_MAX517 is not set
# CONFIG_MAX5522 is not set
# CONFIG_MAX5821 is not set
# CONFIG_MCP4725 is not set
# CONFIG_MCP4728 is not set
# CONFIG_MCP4821 is not set
# CONFIG_MCP4922 is not set
# CONFIG_TI_DAC082S085 is not set
# CONFIG_TI_DAC5571 is not set
# CONFIG_TI_DAC7311 is not set
# CONFIG_TI_DAC7612 is not set
# CONFIG_VF610_DAC is not set
# end of Digital to analog converters

#
# IIO dummy driver
#
# end of IIO dummy driver

#
# Filters
#
# CONFIG_ADMV8818 is not set
# end of Filters

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#
# CONFIG_AD9523 is not set
# end of Clock Generator/Distribution

#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# CONFIG_ADF4350 is not set
# CONFIG_ADF4371 is not set
# CONFIG_ADF4377 is not set
# CONFIG_ADMFM2000 is not set
# CONFIG_ADMV1013 is not set
# CONFIG_ADMV1014 is not set
# CONFIG_ADMV4420 is not set
# CONFIG_ADRF6780 is not set
# end of Phase-Locked Loop (PLL) frequency synthesizers
# end of Frequency Synthesizers DDS/PLL

#
# Digital gyroscope sensors
#
# CONFIG_ADIS16080 is not set
# CONFIG_ADIS16130 is not set
# CONFIG_ADIS16136 is not set
# CONFIG_ADIS16260 is not set
# CONFIG_ADXRS290 is not set
# CONFIG_ADXRS450 is not set
# CONFIG_BMG160 is not set
# CONFIG_FXAS21002C is not set
# CONFIG_MPU3050_I2C is not set
# CONFIG_IIO_ST_GYRO_3AXIS is not set
# CONFIG_ITG3200 is not set
# end of Digital gyroscope sensors

#
# Health Sensors
#

#
# Heart Rate Monitors
#
# CONFIG_AFE4403 is not set
# CONFIG_AFE4404 is not set
# CONFIG_MAX30100 is not set
# CONFIG_MAX30102 is not set
# end of Heart Rate Monitors
# end of Health Sensors

#
# Humidity sensors
#
# CONFIG_AM2315 is not set
# CONFIG_DHT11 is not set
# CONFIG_ENS210 is not set
# CONFIG_HDC100X is not set
# CONFIG_HDC2010 is not set
# CONFIG_HDC3020 is not set
# CONFIG_HTS221 is not set
# CONFIG_HTU21 is not set
# CONFIG_SI7005 is not set
# CONFIG_SI7020 is not set
# end of Humidity sensors

#
# Inertial measurement units
#
# CONFIG_ADIS16400 is not set
# CONFIG_ADIS16460 is not set
# CONFIG_ADIS16475 is not set
# CONFIG_ADIS16480 is not set
# CONFIG_BMI160_I2C is not set
# CONFIG_BMI160_SPI is not set
# CONFIG_BMI323_I2C is not set
# CONFIG_BMI323_SPI is not set
# CONFIG_BOSCH_BNO055_I2C is not set
# CONFIG_FXOS8700_I2C is not set
# CONFIG_FXOS8700_SPI is not set
# CONFIG_KMX61 is not set
# CONFIG_INV_ICM42600_I2C is not set
# CONFIG_INV_ICM42600_SPI is not set
# CONFIG_INV_MPU6050_I2C is not set
# CONFIG_INV_MPU6050_SPI is not set
# CONFIG_IIO_ST_LSM6DSX is not set
# CONFIG_IIO_ST_LSM9DS0 is not set
# end of Inertial measurement units

#
# Light sensors
#
# CONFIG_ACPI_ALS is not set
# CONFIG_ADJD_S311 is not set
# CONFIG_ADUX1020 is not set
# CONFIG_AL3010 is not set
# CONFIG_AL3320A is not set
# CONFIG_APDS9300 is not set
# CONFIG_APDS9306 is not set
# CONFIG_APDS9960 is not set
# CONFIG_AS73211 is not set
# CONFIG_BH1745 is not set
# CONFIG_BH1750 is not set
# CONFIG_BH1780 is not set
# CONFIG_CM32181 is not set
# CONFIG_CM3232 is not set
# CONFIG_CM3323 is not set
# CONFIG_CM3605 is not set
# CONFIG_CM36651 is not set
# CONFIG_GP2AP002 is not set
# CONFIG_GP2AP020A00F is not set
# CONFIG_SENSORS_ISL29018 is not set
# CONFIG_SENSORS_ISL29028 is not set
# CONFIG_ISL29125 is not set
# CONFIG_ISL76682 is not set
# CONFIG_JSA1212 is not set
# CONFIG_ROHM_BU27008 is not set
# CONFIG_ROHM_BU27034 is not set
# CONFIG_RPR0521 is not set
# CONFIG_LTR390 is not set
# CONFIG_LTR501 is not set
# CONFIG_LTRF216A is not set
# CONFIG_LV0104CS is not set
# CONFIG_MAX44000 is not set
# CONFIG_MAX44009 is not set
# CONFIG_NOA1305 is not set
# CONFIG_OPT3001 is not set
# CONFIG_OPT4001 is not set
# CONFIG_PA12203001 is not set
# CONFIG_SI1133 is not set
# CONFIG_SI1145 is not set
# CONFIG_STK3310 is not set
# CONFIG_ST_UVIS25 is not set
# CONFIG_TCS3414 is not set
# CONFIG_TCS3472 is not set
# CONFIG_SENSORS_TSL2563 is not set
# CONFIG_TSL2583 is not set
# CONFIG_TSL2591 is not set
# CONFIG_TSL2772 is not set
# CONFIG_TSL4531 is not set
# CONFIG_US5182D is not set
# CONFIG_VCNL4000 is not set
# CONFIG_VCNL4035 is not set
# CONFIG_VEML6030 is not set
# CONFIG_VEML6040 is not set
# CONFIG_VEML6070 is not set
# CONFIG_VEML6075 is not set
# CONFIG_VL6180 is not set
# CONFIG_ZOPT2201 is not set
# end of Light sensors

#
# Magnetometer sensors
#
# CONFIG_AK8974 is not set
# CONFIG_AK8975 is not set
# CONFIG_AK09911 is not set
# CONFIG_BMC150_MAGN_I2C is not set
# CONFIG_BMC150_MAGN_SPI is not set
# CONFIG_MAG3110 is not set
# CONFIG_MMC35240 is not set
# CONFIG_IIO_ST_MAGN_3AXIS is not set
# CONFIG_SENSORS_HMC5843_I2C is not set
# CONFIG_SENSORS_HMC5843_SPI is not set
# CONFIG_SENSORS_RM3100_I2C is not set
# CONFIG_SENSORS_RM3100_SPI is not set
# CONFIG_TI_TMAG5273 is not set
# CONFIG_YAMAHA_YAS530 is not set
# end of Magnetometer sensors

#
# Multiplexers
#
# CONFIG_IIO_MUX is not set
# end of Multiplexers

#
# Inclinometer sensors
#
# end of Inclinometer sensors

#
# Triggers - standalone
#
# CONFIG_IIO_INTERRUPT_TRIGGER is not set
# CONFIG_IIO_SYSFS_TRIGGER is not set
# end of Triggers - standalone

#
# Linear and angular position sensors
#
# end of Linear and angular position sensors

#
# Digital potentiometers
#
# CONFIG_AD5110 is not set
# CONFIG_AD5272 is not set
# CONFIG_DS1803 is not set
# CONFIG_MAX5432 is not set
# CONFIG_MAX5481 is not set
# CONFIG_MAX5487 is not set
# CONFIG_MCP4018 is not set
# CONFIG_MCP4131 is not set
# CONFIG_MCP4531 is not set
# CONFIG_MCP41010 is not set
# CONFIG_TPL0102 is not set
# CONFIG_X9250 is not set
# end of Digital potentiometers

#
# Digital potentiostats
#
# CONFIG_LMP91000 is not set
# end of Digital potentiostats

#
# Pressure sensors
#
# CONFIG_ABP060MG is not set
# CONFIG_ROHM_BM1390 is not set
# CONFIG_BMP280 is not set
# CONFIG_DLHL60D is not set
# CONFIG_DPS310 is not set
# CONFIG_HP03 is not set
# CONFIG_HSC030PA is not set
# CONFIG_ICP10100 is not set
# CONFIG_MPL115_I2C is not set
# CONFIG_MPL115_SPI is not set
# CONFIG_MPL3115 is not set
# CONFIG_MPRLS0025PA is not set
# CONFIG_MS5611 is not set
# CONFIG_MS5637 is not set
# CONFIG_SDP500 is not set
# CONFIG_IIO_ST_PRESS is not set
# CONFIG_T5403 is not set
# CONFIG_HP206C is not set
# CONFIG_ZPA2326 is not set
# end of Pressure sensors

#
# Lightning sensors
#
# CONFIG_AS3935 is not set
# end of Lightning sensors

#
# Proximity and distance sensors
#
# CONFIG_HX9023S is not set
# CONFIG_IRSD200 is not set
# CONFIG_ISL29501 is not set
# CONFIG_LIDAR_LITE_V2 is not set
# CONFIG_MB1232 is not set
# CONFIG_PING is not set
# CONFIG_RFD77402 is not set
# CONFIG_SRF04 is not set
# CONFIG_SX9310 is not set
# CONFIG_SX9324 is not set
# CONFIG_SX9360 is not set
# CONFIG_SX9500 is not set
# CONFIG_SRF08 is not set
# CONFIG_VCNL3020 is not set
# CONFIG_VL53L0X_I2C is not set
# CONFIG_AW96103 is not set
# end of Proximity and distance sensors

#
# Resolver to digital converters
#
# CONFIG_AD2S90 is not set
# CONFIG_AD2S1200 is not set
# CONFIG_AD2S1210 is not set
# end of Resolver to digital converters

#
# Temperature sensors
#
# CONFIG_LTC2983 is not set
# CONFIG_MAXIM_THERMOCOUPLE is not set
# CONFIG_MLX90614 is not set
# CONFIG_MLX90632 is not set
# CONFIG_MLX90635 is not set
# CONFIG_TMP006 is not set
# CONFIG_TMP007 is not set
# CONFIG_TMP117 is not set
# CONFIG_TSYS01 is not set
# CONFIG_TSYS02D is not set
# CONFIG_MAX30208 is not set
# CONFIG_MAX31856 is not set
# CONFIG_MAX31865 is not set
# CONFIG_MCP9600 is not set
# end of Temperature sensors

# CONFIG_NTB is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
# CONFIG_LAN966X_OIC is not set
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_CPCAP_USB is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem

CONFIG_POWERCAP=y
# CONFIG_INTEL_RAPL is not set
# CONFIG_INTEL_RAPL_TPMI is not set
CONFIG_IDLE_INJECT=y
# CONFIG_MCB is not set

#
# Performance monitor support
#
# CONFIG_DWC_PCIE_PMU is not set
# CONFIG_CXL_PMU is not set
# end of Performance monitor support

CONFIG_RAS=y
# CONFIG_RAS_CEC is not set
# CONFIG_AMD_ATL is not set
# CONFIG_USB4 is not set

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

CONFIG_LIBNVDIMM=m
CONFIG_BLK_DEV_PMEM=m
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=m
CONFIG_BTT=y
CONFIG_ND_PFN=m
CONFIG_NVDIMM_PFN=y
CONFIG_NVDIMM_DAX=y
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_DEV_DAX_PMEM=m
# CONFIG_DEV_DAX_HMEM is not set
CONFIG_DEV_DAX_CXL=m
CONFIG_DEV_DAX_KMEM=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_LAYOUTS is not set
# CONFIG_NVMEM_RMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support

CONFIG_FPGA=m
# CONFIG_ALTERA_PR_IP_CORE is not set
# CONFIG_FPGA_MGR_ALTERA_PS_SPI is not set
# CONFIG_FPGA_MGR_ALTERA_CVP is not set
# CONFIG_FPGA_MGR_XILINX_SELECTMAP is not set
# CONFIG_FPGA_MGR_XILINX_SPI is not set
# CONFIG_FPGA_MGR_MACHXO2_SPI is not set
CONFIG_FPGA_BRIDGE=m
# CONFIG_ALTERA_FREEZE_BRIDGE is not set
# CONFIG_XILINX_PR_DECOUPLER is not set
CONFIG_FPGA_REGION=m
CONFIG_FPGA_DFL=m
CONFIG_FPGA_DFL_FME=m
CONFIG_FPGA_DFL_FME_MGR=m
CONFIG_FPGA_DFL_FME_BRIDGE=m
CONFIG_FPGA_DFL_FME_REGION=m
CONFIG_FPGA_DFL_AFU=m
CONFIG_FPGA_DFL_NIOS_INTEL_PAC_N3000=m
CONFIG_FPGA_DFL_PCI=m
# CONFIG_FPGA_MGR_MICROCHIP_SPI is not set
# CONFIG_FPGA_MGR_LATTICE_SYSCONFIG_SPI is not set
# CONFIG_TEE is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
CONFIG_DPLL=y
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_FS_IOMAP=y
CONFIG_FS_STACK=y
CONFIG_BUFFER_HEAD=y
CONFIG_LEGACY_DIRECT_IO=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=y
CONFIG_XFS_SUPPORT_V4=y
# CONFIG_XFS_SUPPORT_ASCII_CI is not set
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
# CONFIG_XFS_ONLINE_SCRUB is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_BTRFS_FS=y
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_BTRFS_FS_REF_VERIFY is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_BCACHEFS_FS is not set
CONFIG_FS_DAX=y
CONFIG_FS_DAX_PMD=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FS_VERITY=y
CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_QUOTA_DEBUG is not set
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
# CONFIG_CUSE is not set
CONFIG_VIRTIO_FS=y
CONFIG_FUSE_DAX=y
CONFIG_FUSE_PASSTHROUGH=y
CONFIG_OVERLAY_FS=y
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y
# CONFIG_OVERLAY_FS_INDEX is not set
# CONFIG_OVERLAY_FS_XINO_AUTO is not set
# CONFIG_OVERLAY_FS_METACOPY is not set
# CONFIG_OVERLAY_FS_DEBUG is not set

#
# Caches
#
CONFIG_NETFS_SUPPORT=m
CONFIG_NETFS_STATS=y
# CONFIG_NETFS_DEBUG is not set
CONFIG_FSCACHE=y
CONFIG_FSCACHE_STATS=y
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_ERROR_INJECTION is not set
# CONFIG_CACHEFILES_ONDEMAND is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_FAT_DEFAULT_UTF8 is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS3_FS is not set
# CONFIG_NTFS_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
# CONFIG_PROC_VMCORE_DEVICE_DUMP is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_PROC_CPU_RESCTRL=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_TMPFS_INODE64=y
# CONFIG_TMPFS_QUOTA is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON=y
CONFIG_HUGETLB_PAGE=y
CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y
CONFIG_HUGETLB_PMD_PAGE_TABLE_SHARING=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=m
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS2_FS is not set
CONFIG_CRAMFS=m
CONFIG_CRAMFS_BLOCKDEV=y
# CONFIG_CRAMFS_MTD is not set
CONFIG_SQUASHFS=m
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_DECOMP_MULTI=y
# CONFIG_SQUASHFS_CHOICE_DECOMP_BY_MOUNT is not set
# CONFIG_SQUASHFS_COMPILE_DECOMP_SINGLE is not set
CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI=y
# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU is not set
# CONFIG_SQUASHFS_MOUNT_DECOMP_THREADS is not set
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
CONFIG_SQUASHFS_LZ4=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
CONFIG_SQUASHFS_ZSTD=y
CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_COMPRESS=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_PSTORE_BLK is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EROFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
CONFIG_NFS_V3=m
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_NFS_FSCACHE=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
# CONFIG_NFS_DISABLE_UDP_SUPPORT is not set
# CONFIG_NFS_V4_2_READ_PLUS is not set
CONFIG_NFSD=m
# CONFIG_NFSD_V2 is not set
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_PNFS=y
CONFIG_NFSD_BLOCKLAYOUT=y
CONFIG_NFSD_SCSILAYOUT=y
CONFIG_NFSD_FLEXFILELAYOUT=y
CONFIG_NFSD_V4_2_INTER_SSC=y
CONFIG_NFSD_V4_SECURITY_LABEL=y
# CONFIG_NFSD_LEGACY_CLIENT_TRACKING is not set
CONFIG_GRACE_PERIOD=m
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
# CONFIG_NFS_LOCALIO is not set
CONFIG_NFS_V4_2_SSC_HELPER=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA1=y
# CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA2 is not set
CONFIG_SUNRPC_DEBUG=y
CONFIG_SUNRPC_XPRT_RDMA=m
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_SMB_SERVER is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_9P_FS=m
# CONFIG_9P_FSCACHE is not set
# CONFIG_9P_FS_POSIX_ACL is not set
# CONFIG_9P_FS_SECURITY is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
# CONFIG_TRUSTED_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
# CONFIG_KEY_DH_OPERATIONS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_PROC_MEM_ALWAYS_FORCE=y
# CONFIG_PROC_MEM_FORCE_PTRACE is not set
# CONFIG_PROC_MEM_NO_FORCE is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_INFINIBAND is not set
# CONFIG_SECURITY_NETWORK_XFRM is not set
CONFIG_SECURITY_PATH=y
CONFIG_INTEL_TXT=y
CONFIG_LSM_MMAP_MIN_ADDR=65536
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS=9
CONFIG_SECURITY_SELINUX_SID2STR_CACHE_SIZE=256
# CONFIG_SECURITY_SELINUX_DEBUG is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_LOADPIN is not set
# CONFIG_SECURITY_YAMA is not set
# CONFIG_SECURITY_SAFESETID is not set
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
# CONFIG_SECURITY_IPE is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_INTEGRITY_AUDIT=y
CONFIG_IMA=y
CONFIG_IMA_KEXEC=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_LSM_RULES=y
CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_IMA_SIG_TEMPLATE is not set
CONFIG_IMA_DEFAULT_TEMPLATE="ima-ng"
# CONFIG_IMA_DEFAULT_HASH_SHA1 is not set
CONFIG_IMA_DEFAULT_HASH_SHA256=y
# CONFIG_IMA_DEFAULT_HASH_SHA512 is not set
CONFIG_IMA_DEFAULT_HASH="sha256"
# CONFIG_IMA_WRITE_POLICY is not set
# CONFIG_IMA_READ_POLICY is not set
# CONFIG_IMA_APPRAISE is not set
CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS=y
CONFIG_IMA_QUEUE_EARLY_BOOT_KEYS=y
# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
# CONFIG_IMA_DISABLE_HTABLE is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_LSM="bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
CONFIG_INIT_STACK_NONE=y
# CONFIG_INIT_STACK_ALL_PATTERN is not set
# CONFIG_INIT_STACK_ALL_ZERO is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

#
# Hardening of kernel data structures
#
# CONFIG_LIST_HARDENED is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Hardening of kernel data structures

CONFIG_CC_HAS_RANDSTRUCT=y
CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# end of Kernel hardening options
# end of Security options

CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SIG=y
CONFIG_CRYPTO_SIG2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y
CONFIG_CRYPTO_ENGINE=m
# end of Crypto core or helper

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
# CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set
CONFIG_CRYPTO_ECC=y
CONFIG_CRYPTO_ECDH=y
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# end of Public-key cryptography

#
# Block ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARIA is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SM4_GENERIC is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_CHACHA20 is not set
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_HCTR2 is not set
# CONFIG_CRYPTO_KEYWRAP is not set
CONFIG_CRYPTO_LRW=y
# CONFIG_CRYPTO_PCBC is not set
CONFIG_CRYPTO_XTS=y
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_CCM is not set
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_GENIV=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m
CONFIG_CRYPTO_ESSIV=m
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
CONFIG_CRYPTO_BLAKE2B=y
# CONFIG_CRYPTO_CMAC is not set
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_RMD160 is not set
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=y
# CONFIG_CRYPTO_SM3_GENERIC is not set
# CONFIG_CRYPTO_STREEBOG is not set
# CONFIG_CRYPTO_VMAC is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_XCBC is not set
CONFIG_CRYPTO_XXHASH=y
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRC64_ROCKSOFT=y
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
CONFIG_CRYPTO_LZ4=m
# CONFIG_CRYPTO_LZ4HC is not set
CONFIG_CRYPTO_ZSTD=y
# end of Compression

#
# Random number generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_JITTERENTROPY_MEMORY_BLOCKS=64
CONFIG_CRYPTO_JITTERENTROPY_MEMORY_BLOCKSIZE=32
CONFIG_CRYPTO_JITTERENTROPY_OSR=1
# end of Random number generation

#
# Userspace interface
#
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# end of Userspace interface

CONFIG_CRYPTO_HASH_INFO=y

#
# Accelerated Cryptographic Algorithms for CPU (x86)
#
CONFIG_CRYPTO_CURVE25519_X86=y
CONFIG_CRYPTO_AES_NI_INTEL=y
# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
# CONFIG_CRYPTO_ARIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_ARIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_ARIA_GFNI_AVX512_X86_64 is not set
CONFIG_CRYPTO_CHACHA20_X86_64=y
# CONFIG_CRYPTO_AEGIS128_AESNI_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_AVX2 is not set
CONFIG_CRYPTO_BLAKE2S_X86=y
# CONFIG_CRYPTO_POLYVAL_CLMUL_NI is not set
CONFIG_CRYPTO_POLY1305_X86_64=y
CONFIG_CRYPTO_SHA1_SSSE3=y
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
# CONFIG_CRYPTO_SM3_AVX_X86_64 is not set
# CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set
CONFIG_CRYPTO_CRC32C_INTEL=y
CONFIG_CRYPTO_CRC32_PCLMUL=y
# CONFIG_CRYPTO_CRCT10DIF_PCLMUL is not set
# end of Accelerated Cryptographic Algorithms for CPU (x86)

CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_PADLOCK is not set
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
CONFIG_CRYPTO_DEV_CCP=y
CONFIG_CRYPTO_DEV_CCP_DD=m
CONFIG_CRYPTO_DEV_SP_CCP=y
CONFIG_CRYPTO_DEV_CCP_CRYPTO=m
CONFIG_CRYPTO_DEV_SP_PSP=y
# CONFIG_CRYPTO_DEV_CCP_DEBUGFS is not set
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_QAT=m
CONFIG_CRYPTO_DEV_QAT_DH895xCC=m
CONFIG_CRYPTO_DEV_QAT_C3XXX=m
CONFIG_CRYPTO_DEV_QAT_C62X=m
CONFIG_CRYPTO_DEV_QAT_4XXX=m
# CONFIG_CRYPTO_DEV_QAT_420XX is not set
CONFIG_CRYPTO_DEV_QAT_DH895xCCVF=m
CONFIG_CRYPTO_DEV_QAT_C3XXXVF=m
CONFIG_CRYPTO_DEV_QAT_C62XVF=m
# CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION is not set
CONFIG_CRYPTO_DEV_VIRTIO=m
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_TEST_KEY is not set
# CONFIG_SIGNED_PE_FILE_VERIFICATION is not set
# CONFIG_FIPS_SIGNATURE_SELFTEST is not set

#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
CONFIG_MODULE_SIG_KEY_TYPE_RSA=y
# CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_RAID6_PQ=y
CONFIG_RAID6_PQ_BENCHMARK=y
CONFIG_LINEAR_RANGES=y
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_AESCFB=y
CONFIG_CRYPTO_LIB_ARC4=m
CONFIG_CRYPTO_LIB_GF128MUL=y
CONFIG_CRYPTO_ARCH_HAVE_LIB_BLAKE2S=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA=y
CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519=y
CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=y
CONFIG_CRYPTO_LIB_CURVE25519=y
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305=y
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y
CONFIG_CRYPTO_LIB_POLY1305=y
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=y
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC64_ROCKSOFT=y
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC64=y
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
CONFIG_CRC8=m
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_COMPRESS=y
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_ARM64=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_RISCV=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_BTREE=y
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_CLOSURES=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS_HELPERS=y
CONFIG_NEED_SG_DMA_FLAGS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_HAS_FORCE_DMA_UNENCRYPTED=y
CONFIG_SWIOTLB=y
# CONFIG_SWIOTLB_DYNAMIC is not set
CONFIG_DMA_NEED_SYNC=y
CONFIG_DMA_COHERENT_POOL=y
CONFIG_DMA_CMA=y
# CONFIG_DMA_NUMA_CMA is not set

#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_CMA_SIZE_SEL_MBYTES=y
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_DIMLIB=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_GENERIC_VDSO_OVERFLOW_PROTECT=y
CONFIG_VDSO_GETRANDOM=y
CONFIG_FONT_SUPPORT=y
CONFIG_FONT_8x16=y
CONFIG_FONT_AUTOSELECT=y
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_MEMREGION=y
CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_ARCH_HAS_COPY_MC=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_MAX_FRAMES=64
CONFIG_SBITMAP=y
# CONFIG_LWQ_TEST is not set
# end of Library routines

CONFIG_PLDMFW=y
CONFIG_FIRMWARE_TABLE=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_AS_HAS_NON_CONST_ULEB128=y
# CONFIG_DEBUG_INFO_NONE is not set
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
CONFIG_DEBUG_INFO_DWARF4=y
# CONFIG_DEBUG_INFO_DWARF5 is not set
# CONFIG_DEBUG_INFO_REDUCED is not set
CONFIG_DEBUG_INFO_COMPRESSED_NONE=y
# CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set
# CONFIG_DEBUG_INFO_COMPRESSED_ZSTD is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
CONFIG_DEBUG_INFO_BTF=y
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
CONFIG_PAHOLE_HAS_BTF_TAG=y
CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y
CONFIG_DEBUG_INFO_BTF_MODULES=y
# CONFIG_MODULE_ALLOW_BTF_MISMATCH is not set
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B is not set
CONFIG_OBJTOOL=y
# CONFIG_VMLINUX_MAP is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN=y
# CONFIG_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
CONFIG_HAVE_KCSAN_COMPILER=y
# CONFIG_KCSAN is not set
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# CONFIG_DEBUG_NET is not set
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_TABLE_CHECK is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_DEBUG_PAGE_REF=y
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
# CONFIG_PTDUMP_DEBUGFS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_PER_VMA_LOCK_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SHRINKER_DEBUG is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y
# CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP is not set
# CONFIG_MEM_ALLOC_PROFILING is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_KASAN_SW_TAGS=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
CONFIG_KFENCE=y
CONFIG_KFENCE_SAMPLE_INTERVAL=100
CONFIG_KFENCE_NUM_OBJECTS=255
# CONFIG_KFENCE_DEFERRABLE is not set
CONFIG_KFENCE_STATIC_KEYS=y
CONFIG_KFENCE_STRESS_TEST_FAULTS=0
CONFIG_HAVE_ARCH_KMSAN=y
CONFIG_HAVE_KMSAN_COMPILER=y
# CONFIG_KMSAN is not set
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR_INTR_STORM=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_HAVE_HARDLOCKUP_DETECTOR_BUDDY=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_HARDLOCKUP_DETECTOR_PREFER_BUDDY is not set
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
# CONFIG_HARDLOCKUP_DETECTOR_BUDDY is not set
# CONFIG_HARDLOCKUP_DETECTOR_ARCH is not set
CONFIG_HARDLOCKUP_DETECTOR_COUNTS_HRTIMER=y
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_WQ_CPU_INTENSIVE_REPORT is not set
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_LOCK_TORTURE_TEST=m
# CONFIG_WW_MUTEX_SELFTEST is not set
CONFIG_SCF_TORTURE_TEST=m
CONFIG_CSD_LOCK_WAIT_DEBUG=y
CONFIG_CSD_LOCK_WAIT_DEBUG_DEFAULT=y
# end of Lock Debugging (spinlocks, mutexes, etc...)

CONFIG_NMI_CHECK_CPU=y
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CLOSURES is not set
# CONFIG_DEBUG_MAPLE_TREE is not set
# end of Debug kernel data structures

#
# RCU Debugging
#
CONFIG_TORTURE_TEST=m
# CONFIG_RCU_SCALE_TEST is not set
CONFIG_RCU_TORTURE_TEST=m
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
CONFIG_RCU_CPU_STALL_CPUTIME=y
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
# CONFIG_LATENCYTOP is not set
CONFIG_DEBUG_CGROUP_REF=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_RETHOOK=y
CONFIG_RETHOOK=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_RETVAL=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_NO_PATCHABLE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_OBJTOOL_MCOUNT=y
CONFIG_HAVE_OBJTOOL_NOP_MCOUNT=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_FUNCTION_GRAPH_RETVAL is not set
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_FPROBE=y
# CONFIG_FUNCTION_PROFILER is not set
# CONFIG_STACK_TRACER is not set
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_HWLAT_TRACER is not set
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_MMIOTRACE is not set
CONFIG_FTRACE_SYSCALLS=y
# CONFIG_TRACER_SNAPSHOT is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_FPROBE_EVENTS=y
CONFIG_PROBE_EVENTS_BTF_ARGS=y
CONFIG_KPROBE_EVENTS=y
# CONFIG_KPROBE_EVENTS_ON_NOTRACE is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
CONFIG_BPF_KPROBE_OVERRIDE=y
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_MCOUNT_USE_OBJTOOL=y
# CONFIG_SYNTH_EVENTS is not set
# CONFIG_USER_EVENTS is not set
# CONFIG_HIST_TRIGGERS is not set
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_FTRACE_RECORD_RECURSION is not set
# CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_FTRACE_SORT_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_KPROBE_EVENT_GEN_TEST is not set
# CONFIG_RV is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_IO_STRICT_DEVMEM is not set

#
# x86 Debugging
#
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
# CONFIG_EARLY_PRINTK_DBGP is not set
# CONFIG_EARLY_PRINTK_USB_XDBC is not set
# CONFIG_EFI_PGT_DUMP is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_FPU is not set
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAULT_INJECTION_USERCOPY is not set
# CONFIG_FAIL_MAKE_REQUEST is not set
# CONFIG_FAIL_IO_TIMEOUT is not set
# CONFIG_FAIL_FUTEX is not set
CONFIG_FAULT_INJECTION_DEBUG_FS=y
# CONFIG_FAIL_FUNCTION is not set
CONFIG_FAIL_SUNRPC=y
# CONFIG_FAULT_INJECTION_CONFIGFS is not set
# CONFIG_FAULT_INJECTION_STACKTRACE_FILTER is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_TEST_DHRY is not set
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_TEST_MULDIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_MAPLE_TREE is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
CONFIG_TEST_BPF=m
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_DYNAMIC_DEBUG is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_HMM is not set
# CONFIG_TEST_FREE_PAGES is not set
# CONFIG_TEST_FPU is not set
CONFIG_TEST_CLOCKSOURCE_WATCHDOG=m
# CONFIG_TEST_OBJPOOL is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Alan Maguire]

On 12/11/2024 01:51, Yonghong Song wrote:
> 
> 
> 
> On 11/11/24 7:39 AM, Alan Maguire wrote:
>> On 08/11/2024 18:05, Yonghong Song wrote:
>>> Song Liu reported that a kernel func (perf_event_read()) cannot be
>>> traced
>>> in certain situations since the func is not in vmlinux bTF. This happens
>>> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
>>>
>>> The perf_event_read() signature in kernel (kernel/events/core.c):
>>>     static int perf_event_read(struct perf_event *event, bool group)
>>>
>>> Adding '-V' to pahole command line, and the following error msg can
>>> be found:
>>>     skipping addition of 'perf_event_read'(perf_event_read) due to
>>> unexpected register used for parameter
>>>
>>> Eventually the error message is attributed to the setting
>>> (parm->unexpected_reg = 1) in parameter__new() function.
>>>
>>> The following is the dwarf representation for perf_event_read():
>>>      0x0334c034:   DW_TAG_subprogram
>>>                  DW_AT_low_pc    (0xffffffff812c6110)
>>>                  DW_AT_high_pc   (0xffffffff812c640a)
>>>                  DW_AT_frame_base        (DW_OP_reg7 RSP)
>>>                  DW_AT_GNU_all_call_sites        (true)
>>>                  DW_AT_name      ("perf_event_read")
>>>                  DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>>>                  DW_AT_decl_line (4641)
>>>                  DW_AT_prototyped        (true)
>>>                  DW_AT_type      (0x03324f6a "int")
>>>      0x0334c04e:     DW_TAG_formal_parameter
>>>                    DW_AT_location        (0x007de9fd:
>>>                       [0xffffffff812c6115, 0xffffffff812c6141):
>>> DW_OP_reg5 RDI
>>>                       [0xffffffff812c6141, 0xffffffff812c6323):
>>> DW_OP_reg14 R14
>>>                       [0xffffffff812c6323, 0xffffffff812c63fe):
>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>>                       [0xffffffff812c63fe, 0xffffffff812c6405):
>>> DW_OP_reg14 R14
>>>                       [0xffffffff812c6405, 0xffffffff812c640a):
>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>>>                    DW_AT_name    ("event")
>>>                    DW_AT_decl_file       ("/rw/compile/kernel/events/
>>> core.c")
>>>                    DW_AT_decl_line       (4641)
>>>                    DW_AT_type    (0x0333aac2 "perf_event *")
>>>      0x0334c05e:     DW_TAG_formal_parameter
>>>                    DW_AT_location        (0x007dea82:
>>>                       [0xffffffff812c6137, 0xffffffff812c63f2):
>>> DW_OP_reg12 R12
>>>                       [0xffffffff812c63f2, 0xffffffff812c63fe):
>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>>                       [0xffffffff812c63fe, 0xffffffff812c640a):
>>> DW_OP_reg12 R12)
>>>                    DW_AT_name    ("group")
>>>                    DW_AT_decl_file       ("/rw/compile/kernel/events/
>>> core.c")
>>>                    DW_AT_decl_line       (4641)
>>>                    DW_AT_type    (0x03327059 "bool")
>>>
>>> By inspecting the binary, the second argument ("bool group") is used
>>> in the function. The following are the disasm code:
>>>      ffffffff812c6110 <perf_event_read>:
>>>      ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>      ffffffff812c6115: 55                    pushq   %rbp
>>>      ffffffff812c6116: 41 57                 pushq   %r15
>>>      ffffffff812c6118: 41 56                 pushq   %r14
>>>      ffffffff812c611a: 41 55                 pushq   %r13
>>>      ffffffff812c611c: 41 54                 pushq   %r12
>>>      ffffffff812c611e: 53                    pushq   %rbx
>>>      ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
>>>      ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
>>>      <=========== NOTE that here '%esi' is used and moved to '%r12d'.
>>>      ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
>>>      ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40,
>>> %rax
>>>      ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
>>>      ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
>>>      ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
>>>      ffffffff812c613f: 75 3f                 jne    
>>> 0xffffffff812c6180 <perf_event_read+0x70>
>>>      ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:
>>> (%rax,%rax)
>>>      ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>      ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
>>>      ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
>>>      ffffffff812c615a: e8 c1 a0 d7 00        callq  
>>> 0xffffffff82040220 <_raw_spin_lock_irqsave>
>>>      ffffffff812c615f: 49 89 c7              movq    %rax, %r15
>>>      ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
>>>      ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
>>>      ffffffff812c616b: 0f 84 9a 00 00 00     je     
>>> 0xffffffff812c620b <perf_event_read+0xfb>
>>>      ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
>>>      ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
>>>      <=========== NOTE: %rsi is overwritten
>>>      ......
>>>      ffffffff812c63f0: 41 5c                 popq    %r12
>>>      <============ POP r12
>>>      ffffffff812c63f2: 41 5d                 popq    %r13
>>>      ffffffff812c63f4: 41 5e                 popq    %r14
>>>      ffffffff812c63f6: 41 5f                 popq    %r15
>>>      ffffffff812c63f8: 5d                    popq    %rbp
>>>      ffffffff812c63f9: e9 e2 a8 d7 00        jmp    
>>> 0xffffffff82040ce0 <__x86_return_thunk>
>>>      ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
>>>      ffffffff812c6400: e9 be fe ff ff        jmp    
>>> 0xffffffff812c62c3 <perf_event_read+0x1b3>
>>>
>>> It is not clear why dwarf didn't encode %rsi in locations. But
>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
>>> the entry of perf_event_read(). So this patch tries to search
>>> DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
>>> the expected parameter register matchs the register in
>>> DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
>>> is not optimized.
>>>
>>> For one of internal 6.11 kernel, there are 62498 functions in BTF and
>>> perf_event_read() is not there. With this patch, there are 61552
>>> functions
>>> in BTF and perf_event_read() is included.
>>>
>> hi Yonghong,
>>
>> I'm confused by these numbers. I would have thought your changes would
>> have led to a net increase of functions encoded in vmlinux BTF since we
>> are now likely catching more cases where registers are expected.  When I
>> ran your patches against an LLVM-built kernel, that's what I saw; 70
>> additional functions were recognized as having expected parameters, and
>> thus were encoded in BTF. In your case it looks like we lost nearly 1000
>> functions. Any idea what's going on there? If you can share your config,
>> LLVM version I can dig into this from my side too. Thanks!
> 
> Attached is my config (based on one of meta internal configs). I tried
> with master branch with head:
> 
> 7b6e5bfa2541380b478ea1532880210ea3e39e11 (HEAD -> master, origin/master,
> origin/HEAD) Merge branch 'refactor-lock-management'
> ae6e3a273f590a2b64f14a9fab3546c3a8f44ed4 bpf: Drop special callback
> reference handling
> f6b9a69a9e56b2083aca8a925fc1a28eb698e3ed bpf: Refactor active lock
> management
> 
> I am using pahole v1.27.
> 
> I am using an llvm built from upstream. The following is llvm-project head:
> beb12f92c71981670e07e47275efc6b5647011c1 (HEAD -> main) [RISCV] Add
> +optimized-nfN-segment-load-store (#114414)
> 6bad4514c938b3b48c0c719b8dd98b3906f2c290 [AArch64] Extend vector mull
> test coverage. NFC
> 915b910d800d7fab6a692294ff1d7075d8cba824 [libc] Fix typos in proxy type
> headers (#114717)
> 98ea1a81a28a6dd36941456c8ab4ce46f665f57a [IPO] Remove unused includes
> (NFC) (#114716)
> 
> With the above setup, when to do
> 
> pahole -JV --
> btf_features=encode_force,var,float,enum64,decl_tag,type_tag,optimized_func,consistent_func,decl_tag_kfuncs vmlinux >& log.pahole
> 
> You will find the below info in the log:
>   skipping addition of 'perf_event_read'(perf_event_read) due to
> unexpected register used for paramet
> 
> In the dwarf:
> 
> 0x02122746:   DW_TAG_subprogram
>                 DW_AT_low_pc    (0xffffffff81299740)
>                 DW_AT_high_pc   (0xffffffff812999f7)
>                 DW_AT_frame_base        (DW_OP_reg7 RSP)
>                 DW_AT_GNU_all_call_sites        (true)
>                 DW_AT_name      ("perf_event_read")
>                 DW_AT_decl_file ("/home/yhs/work/bpf-next/kernel/events/
> core.c")
>                 DW_AT_decl_line (4746)
>                 DW_AT_prototyped        (true)
>                 DW_AT_type      (0x020f95f5 "int")
> 
> 0x02122760:     DW_TAG_formal_parameter
>                   DW_AT_location        (0x00769b72:
>                      [0xffffffff81299745, 0xffffffff81299764):
> DW_OP_reg5 RDI
>                      [0xffffffff81299764, 0xffffffff81299937):
> DW_OP_reg3 RBX
>                      [0xffffffff81299937, 0xffffffff812999f0):
> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>                      [0xffffffff812999f0, 0xffffffff812999f7):
> DW_OP_reg3 RBX)
>                   DW_AT_name    ("event")
>                   DW_AT_decl_file       ("/home/yhs/work/bpf-next/
> kernel/events/core.c")
>                   DW_AT_decl_line       (4746)
>                   DW_AT_type    (0x0210f654 "perf_event *")
>                     0x02122770:     DW_TAG_formal_parameter
>                   DW_AT_location        (0x00769c61:
>                      [0xffffffff81299758, 0xffffffff81299926):
> DW_OP_reg6 RBP
>                      [0xffffffff81299926, 0xffffffff812999f0):
> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>                      [0xffffffff812999f0, 0xffffffff812999f7):
> DW_OP_reg6 RBP)
>                   DW_AT_name    ("group")
>                   DW_AT_decl_file       ("/home/yhs/work/bpf-next/
> kernel/events/core.c")
> 
> The above is slightly different from our production kernel where Song
> reported. But essence is the same.
> The second parameter needs to check DW_OP_GNU_entry_value(DW_OP_reg4
> RSI) to ensure the second
> argument is available.
> 
> My patch is supposed to only make improvement. I am curiously why you
> get less functions encoded in BTF.
> 

Thanks for the config etc! When I build bpf-next using master branch
llvm and this config, I see

with baseline (master branch pahole): 62371 functions, no perf_event_read
your series on top of master branch pahole: 62433 functions,
perf_event_read present

So that's consistent with what I've seen with other configs; more
functions are present in vmlinux BTF since we are now seeing more cases
where parameters are in fact consistent.  The part that confuses me
though is the numbers you initially reported above

"for one of internal 6.11 kernel, there are 62498 functions in BTF and
perf_event_read() is not there. With this patch, there are 61552
functions in BTF and perf_event_read() is included."

These numbers suggest you lost nearly 1000 functions when building
vmlinux BTF with pahole using this series. That's the part I don't
understand - we should just see a gain in numbers of functions in
vmlinux BTF, right? Did you mean 62552 functions rather than 61552 perhaps?

Alan

>>
>> Alan
>>
>>> Reported-by: Song Liu <song@kernel.org>
>>> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
>>> ---
>>>   dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
>>>   1 file changed, 57 insertions(+), 24 deletions(-)
>>>
> [...]

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

On 11/12/24 8:56 AM, Alan Maguire wrote:
> On 12/11/2024 01:51, Yonghong Song wrote:
>>
>>
>> On 11/11/24 7:39 AM, Alan Maguire wrote:
>>> On 08/11/2024 18:05, Yonghong Song wrote:
>>>> Song Liu reported that a kernel func (perf_event_read()) cannot be
>>>> traced
>>>> in certain situations since the func is not in vmlinux bTF. This happens
>>>> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
>>>>
>>>> The perf_event_read() signature in kernel (kernel/events/core.c):
>>>>      static int perf_event_read(struct perf_event *event, bool group)
>>>>
>>>> Adding '-V' to pahole command line, and the following error msg can
>>>> be found:
>>>>      skipping addition of 'perf_event_read'(perf_event_read) due to
>>>> unexpected register used for parameter
>>>>
>>>> Eventually the error message is attributed to the setting
>>>> (parm->unexpected_reg = 1) in parameter__new() function.
>>>>
>>>> The following is the dwarf representation for perf_event_read():
>>>>       0x0334c034:   DW_TAG_subprogram
>>>>                   DW_AT_low_pc    (0xffffffff812c6110)
>>>>                   DW_AT_high_pc   (0xffffffff812c640a)
>>>>                   DW_AT_frame_base        (DW_OP_reg7 RSP)
>>>>                   DW_AT_GNU_all_call_sites        (true)
>>>>                   DW_AT_name      ("perf_event_read")
>>>>                   DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>>>>                   DW_AT_decl_line (4641)
>>>>                   DW_AT_prototyped        (true)
>>>>                   DW_AT_type      (0x03324f6a "int")
>>>>       0x0334c04e:     DW_TAG_formal_parameter
>>>>                     DW_AT_location        (0x007de9fd:
>>>>                        [0xffffffff812c6115, 0xffffffff812c6141):
>>>> DW_OP_reg5 RDI
>>>>                        [0xffffffff812c6141, 0xffffffff812c6323):
>>>> DW_OP_reg14 R14
>>>>                        [0xffffffff812c6323, 0xffffffff812c63fe):
>>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>>>                        [0xffffffff812c63fe, 0xffffffff812c6405):
>>>> DW_OP_reg14 R14
>>>>                        [0xffffffff812c6405, 0xffffffff812c640a):
>>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>>>>                     DW_AT_name    ("event")
>>>>                     DW_AT_decl_file       ("/rw/compile/kernel/events/
>>>> core.c")
>>>>                     DW_AT_decl_line       (4641)
>>>>                     DW_AT_type    (0x0333aac2 "perf_event *")
>>>>       0x0334c05e:     DW_TAG_formal_parameter
>>>>                     DW_AT_location        (0x007dea82:
>>>>                        [0xffffffff812c6137, 0xffffffff812c63f2):
>>>> DW_OP_reg12 R12
>>>>                        [0xffffffff812c63f2, 0xffffffff812c63fe):
>>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>>>                        [0xffffffff812c63fe, 0xffffffff812c640a):
>>>> DW_OP_reg12 R12)
>>>>                     DW_AT_name    ("group")
>>>>                     DW_AT_decl_file       ("/rw/compile/kernel/events/
>>>> core.c")
>>>>                     DW_AT_decl_line       (4641)
>>>>                     DW_AT_type    (0x03327059 "bool")
>>>>
>>>> By inspecting the binary, the second argument ("bool group") is used
>>>> in the function. The following are the disasm code:
>>>>       ffffffff812c6110 <perf_event_read>:
>>>>       ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>>       ffffffff812c6115: 55                    pushq   %rbp
>>>>       ffffffff812c6116: 41 57                 pushq   %r15
>>>>       ffffffff812c6118: 41 56                 pushq   %r14
>>>>       ffffffff812c611a: 41 55                 pushq   %r13
>>>>       ffffffff812c611c: 41 54                 pushq   %r12
>>>>       ffffffff812c611e: 53                    pushq   %rbx
>>>>       ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
>>>>       ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
>>>>       <=========== NOTE that here '%esi' is used and moved to '%r12d'.
>>>>       ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
>>>>       ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40,
>>>> %rax
>>>>       ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
>>>>       ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
>>>>       ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
>>>>       ffffffff812c613f: 75 3f                 jne
>>>> 0xffffffff812c6180 <perf_event_read+0x70>
>>>>       ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:
>>>> (%rax,%rax)
>>>>       ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>>       ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
>>>>       ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
>>>>       ffffffff812c615a: e8 c1 a0 d7 00        callq
>>>> 0xffffffff82040220 <_raw_spin_lock_irqsave>
>>>>       ffffffff812c615f: 49 89 c7              movq    %rax, %r15
>>>>       ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
>>>>       ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
>>>>       ffffffff812c616b: 0f 84 9a 00 00 00     je
>>>> 0xffffffff812c620b <perf_event_read+0xfb>
>>>>       ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
>>>>       ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
>>>>       <=========== NOTE: %rsi is overwritten
>>>>       ......
>>>>       ffffffff812c63f0: 41 5c                 popq    %r12
>>>>       <============ POP r12
>>>>       ffffffff812c63f2: 41 5d                 popq    %r13
>>>>       ffffffff812c63f4: 41 5e                 popq    %r14
>>>>       ffffffff812c63f6: 41 5f                 popq    %r15
>>>>       ffffffff812c63f8: 5d                    popq    %rbp
>>>>       ffffffff812c63f9: e9 e2 a8 d7 00        jmp
>>>> 0xffffffff82040ce0 <__x86_return_thunk>
>>>>       ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
>>>>       ffffffff812c6400: e9 be fe ff ff        jmp
>>>> 0xffffffff812c62c3 <perf_event_read+0x1b3>
>>>>
>>>> It is not clear why dwarf didn't encode %rsi in locations. But
>>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
>>>> the entry of perf_event_read(). So this patch tries to search
>>>> DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
>>>> the expected parameter register matchs the register in
>>>> DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
>>>> is not optimized.
>>>>
>>>> For one of internal 6.11 kernel, there are 62498 functions in BTF and
>>>> perf_event_read() is not there. With this patch, there are 61552
>>>> functions
>>>> in BTF and perf_event_read() is included.
>>>>
>>> hi Yonghong,
>>>
>>> I'm confused by these numbers. I would have thought your changes would
>>> have led to a net increase of functions encoded in vmlinux BTF since we
>>> are now likely catching more cases where registers are expected.  When I
>>> ran your patches against an LLVM-built kernel, that's what I saw; 70
>>> additional functions were recognized as having expected parameters, and
>>> thus were encoded in BTF. In your case it looks like we lost nearly 1000
>>> functions. Any idea what's going on there? If you can share your config,
>>> LLVM version I can dig into this from my side too. Thanks!
>> Attached is my config (based on one of meta internal configs). I tried
>> with master branch with head:
>>
>> 7b6e5bfa2541380b478ea1532880210ea3e39e11 (HEAD -> master, origin/master,
>> origin/HEAD) Merge branch 'refactor-lock-management'
>> ae6e3a273f590a2b64f14a9fab3546c3a8f44ed4 bpf: Drop special callback
>> reference handling
>> f6b9a69a9e56b2083aca8a925fc1a28eb698e3ed bpf: Refactor active lock
>> management
>>
>> I am using pahole v1.27.
>>
>> I am using an llvm built from upstream. The following is llvm-project head:
>> beb12f92c71981670e07e47275efc6b5647011c1 (HEAD -> main) [RISCV] Add
>> +optimized-nfN-segment-load-store (#114414)
>> 6bad4514c938b3b48c0c719b8dd98b3906f2c290 [AArch64] Extend vector mull
>> test coverage. NFC
>> 915b910d800d7fab6a692294ff1d7075d8cba824 [libc] Fix typos in proxy type
>> headers (#114717)
>> 98ea1a81a28a6dd36941456c8ab4ce46f665f57a [IPO] Remove unused includes
>> (NFC) (#114716)
>>
>> With the above setup, when to do
>>
>> pahole -JV --
>> btf_features=encode_force,var,float,enum64,decl_tag,type_tag,optimized_func,consistent_func,decl_tag_kfuncs vmlinux >& log.pahole
>>
>> You will find the below info in the log:
>>    skipping addition of 'perf_event_read'(perf_event_read) due to
>> unexpected register used for paramet
>>
>> In the dwarf:
>>
>> 0x02122746:   DW_TAG_subprogram
>>                  DW_AT_low_pc    (0xffffffff81299740)
>>                  DW_AT_high_pc   (0xffffffff812999f7)
>>                  DW_AT_frame_base        (DW_OP_reg7 RSP)
>>                  DW_AT_GNU_all_call_sites        (true)
>>                  DW_AT_name      ("perf_event_read")
>>                  DW_AT_decl_file ("/home/yhs/work/bpf-next/kernel/events/
>> core.c")
>>                  DW_AT_decl_line (4746)
>>                  DW_AT_prototyped        (true)
>>                  DW_AT_type      (0x020f95f5 "int")
>>
>> 0x02122760:     DW_TAG_formal_parameter
>>                    DW_AT_location        (0x00769b72:
>>                       [0xffffffff81299745, 0xffffffff81299764):
>> DW_OP_reg5 RDI
>>                       [0xffffffff81299764, 0xffffffff81299937):
>> DW_OP_reg3 RBX
>>                       [0xffffffff81299937, 0xffffffff812999f0):
>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>                       [0xffffffff812999f0, 0xffffffff812999f7):
>> DW_OP_reg3 RBX)
>>                    DW_AT_name    ("event")
>>                    DW_AT_decl_file       ("/home/yhs/work/bpf-next/
>> kernel/events/core.c")
>>                    DW_AT_decl_line       (4746)
>>                    DW_AT_type    (0x0210f654 "perf_event *")
>>                      0x02122770:     DW_TAG_formal_parameter
>>                    DW_AT_location        (0x00769c61:
>>                       [0xffffffff81299758, 0xffffffff81299926):
>> DW_OP_reg6 RBP
>>                       [0xffffffff81299926, 0xffffffff812999f0):
>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>                       [0xffffffff812999f0, 0xffffffff812999f7):
>> DW_OP_reg6 RBP)
>>                    DW_AT_name    ("group")
>>                    DW_AT_decl_file       ("/home/yhs/work/bpf-next/
>> kernel/events/core.c")
>>
>> The above is slightly different from our production kernel where Song
>> reported. But essence is the same.
>> The second parameter needs to check DW_OP_GNU_entry_value(DW_OP_reg4
>> RSI) to ensure the second
>> argument is available.
>>
>> My patch is supposed to only make improvement. I am curiously why you
>> get less functions encoded in BTF.
>>
> Thanks for the config etc! When I build bpf-next using master branch
> llvm and this config, I see
>
> with baseline (master branch pahole): 62371 functions, no perf_event_read
> your series on top of master branch pahole: 62433 functions,
> perf_event_read present
>
> So that's consistent with what I've seen with other configs; more
> functions are present in vmlinux BTF since we are now seeing more cases
> where parameters are in fact consistent.  The part that confuses me
> though is the numbers you initially reported above
>
> "for one of internal 6.11 kernel, there are 62498 functions in BTF and
> perf_event_read() is not there. With this patch, there are 61552
> functions in BTF and perf_event_read() is included."
>
> These numbers suggest you lost nearly 1000 functions when building
> vmlinux BTF with pahole using this series. That's the part I don't
> understand - we should just see a gain in numbers of functions in
> vmlinux BTF, right? Did you mean 62552 functions rather than 61552 perhaps?

Sorry, really embarrassing. it is typo. Indeed it should be 62552 functions
in BTF instead.

>
> Alan
>
>>> Alan
>>>
>>>> Reported-by: Song Liu <song@kernel.org>
>>>> Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
>>>> ---
>>>>    dwarf_loader.c | 81 +++++++++++++++++++++++++++++++++++---------------
>>>>    1 file changed, 57 insertions(+), 24 deletions(-)
>>>>
>> [...]

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Alan Maguire]

On 12/11/2024 17:07, Yonghong Song wrote:
> 
> 
> 
> On 11/12/24 8:56 AM, Alan Maguire wrote:
>> On 12/11/2024 01:51, Yonghong Song wrote:
>>>
>>>
>>> On 11/11/24 7:39 AM, Alan Maguire wrote:
>>>> On 08/11/2024 18:05, Yonghong Song wrote:
>>>>> Song Liu reported that a kernel func (perf_event_read()) cannot be
>>>>> traced
>>>>> in certain situations since the func is not in vmlinux bTF. This
>>>>> happens
>>>>> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
>>>>>
>>>>> The perf_event_read() signature in kernel (kernel/events/core.c):
>>>>>      static int perf_event_read(struct perf_event *event, bool group)
>>>>>
>>>>> Adding '-V' to pahole command line, and the following error msg can
>>>>> be found:
>>>>>      skipping addition of 'perf_event_read'(perf_event_read) due to
>>>>> unexpected register used for parameter
>>>>>
>>>>> Eventually the error message is attributed to the setting
>>>>> (parm->unexpected_reg = 1) in parameter__new() function.
>>>>>
>>>>> The following is the dwarf representation for perf_event_read():
>>>>>       0x0334c034:   DW_TAG_subprogram
>>>>>                   DW_AT_low_pc    (0xffffffff812c6110)
>>>>>                   DW_AT_high_pc   (0xffffffff812c640a)
>>>>>                   DW_AT_frame_base        (DW_OP_reg7 RSP)
>>>>>                   DW_AT_GNU_all_call_sites        (true)
>>>>>                   DW_AT_name      ("perf_event_read")
>>>>>                   DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>>>>>                   DW_AT_decl_line (4641)
>>>>>                   DW_AT_prototyped        (true)
>>>>>                   DW_AT_type      (0x03324f6a "int")
>>>>>       0x0334c04e:     DW_TAG_formal_parameter
>>>>>                     DW_AT_location        (0x007de9fd:
>>>>>                        [0xffffffff812c6115, 0xffffffff812c6141):
>>>>> DW_OP_reg5 RDI
>>>>>                        [0xffffffff812c6141, 0xffffffff812c6323):
>>>>> DW_OP_reg14 R14
>>>>>                        [0xffffffff812c6323, 0xffffffff812c63fe):
>>>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>>>>                        [0xffffffff812c63fe, 0xffffffff812c6405):
>>>>> DW_OP_reg14 R14
>>>>>                        [0xffffffff812c6405, 0xffffffff812c640a):
>>>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>>>>>                     DW_AT_name    ("event")
>>>>>                     DW_AT_decl_file       ("/rw/compile/kernel/events/
>>>>> core.c")
>>>>>                     DW_AT_decl_line       (4641)
>>>>>                     DW_AT_type    (0x0333aac2 "perf_event *")
>>>>>       0x0334c05e:     DW_TAG_formal_parameter
>>>>>                     DW_AT_location        (0x007dea82:
>>>>>                        [0xffffffff812c6137, 0xffffffff812c63f2):
>>>>> DW_OP_reg12 R12
>>>>>                        [0xffffffff812c63f2, 0xffffffff812c63fe):
>>>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>>>>                        [0xffffffff812c63fe, 0xffffffff812c640a):
>>>>> DW_OP_reg12 R12)
>>>>>                     DW_AT_name    ("group")
>>>>>                     DW_AT_decl_file       ("/rw/compile/kernel/events/
>>>>> core.c")
>>>>>                     DW_AT_decl_line       (4641)
>>>>>                     DW_AT_type    (0x03327059 "bool")
>>>>>
>>>>> By inspecting the binary, the second argument ("bool group") is used
>>>>> in the function. The following are the disasm code:
>>>>>       ffffffff812c6110 <perf_event_read>:
>>>>>       ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>>>       ffffffff812c6115: 55                    pushq   %rbp
>>>>>       ffffffff812c6116: 41 57                 pushq   %r15
>>>>>       ffffffff812c6118: 41 56                 pushq   %r14
>>>>>       ffffffff812c611a: 41 55                 pushq   %r13
>>>>>       ffffffff812c611c: 41 54                 pushq   %r12
>>>>>       ffffffff812c611e: 53                    pushq   %rbx
>>>>>       ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
>>>>>       ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
>>>>>       <=========== NOTE that here '%esi' is used and moved to '%r12d'.
>>>>>       ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
>>>>>       ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40,
>>>>> %rax
>>>>>       ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
>>>>>       ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
>>>>>       ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
>>>>>       ffffffff812c613f: 75 3f                 jne
>>>>> 0xffffffff812c6180 <perf_event_read+0x70>
>>>>>       ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:
>>>>> (%rax,%rax)
>>>>>       ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>>>       ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
>>>>>       ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
>>>>>       ffffffff812c615a: e8 c1 a0 d7 00        callq
>>>>> 0xffffffff82040220 <_raw_spin_lock_irqsave>
>>>>>       ffffffff812c615f: 49 89 c7              movq    %rax, %r15
>>>>>       ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
>>>>>       ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
>>>>>       ffffffff812c616b: 0f 84 9a 00 00 00     je
>>>>> 0xffffffff812c620b <perf_event_read+0xfb>
>>>>>       ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
>>>>>       ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
>>>>>       <=========== NOTE: %rsi is overwritten
>>>>>       ......
>>>>>       ffffffff812c63f0: 41 5c                 popq    %r12
>>>>>       <============ POP r12
>>>>>       ffffffff812c63f2: 41 5d                 popq    %r13
>>>>>       ffffffff812c63f4: 41 5e                 popq    %r14
>>>>>       ffffffff812c63f6: 41 5f                 popq    %r15
>>>>>       ffffffff812c63f8: 5d                    popq    %rbp
>>>>>       ffffffff812c63f9: e9 e2 a8 d7 00        jmp
>>>>> 0xffffffff82040ce0 <__x86_return_thunk>
>>>>>       ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
>>>>>       ffffffff812c6400: e9 be fe ff ff        jmp
>>>>> 0xffffffff812c62c3 <perf_event_read+0x1b3>
>>>>>
>>>>> It is not clear why dwarf didn't encode %rsi in locations. But
>>>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
>>>>> the entry of perf_event_read(). So this patch tries to search
>>>>> DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
>>>>> the expected parameter register matchs the register in
>>>>> DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
>>>>> is not optimized.
>>>>>
>>>>> For one of internal 6.11 kernel, there are 62498 functions in BTF and
>>>>> perf_event_read() is not there. With this patch, there are 61552
>>>>> functions
>>>>> in BTF and perf_event_read() is included.
>>>>>
>>>> hi Yonghong,
>>>>
>>>> I'm confused by these numbers. I would have thought your changes would
>>>> have led to a net increase of functions encoded in vmlinux BTF since we
>>>> are now likely catching more cases where registers are expected. 
>>>> When I
>>>> ran your patches against an LLVM-built kernel, that's what I saw; 70
>>>> additional functions were recognized as having expected parameters, and
>>>> thus were encoded in BTF. In your case it looks like we lost nearly
>>>> 1000
>>>> functions. Any idea what's going on there? If you can share your
>>>> config,
>>>> LLVM version I can dig into this from my side too. Thanks!
>>> Attached is my config (based on one of meta internal configs). I tried
>>> with master branch with head:
>>>
>>> 7b6e5bfa2541380b478ea1532880210ea3e39e11 (HEAD -> master, origin/master,
>>> origin/HEAD) Merge branch 'refactor-lock-management'
>>> ae6e3a273f590a2b64f14a9fab3546c3a8f44ed4 bpf: Drop special callback
>>> reference handling
>>> f6b9a69a9e56b2083aca8a925fc1a28eb698e3ed bpf: Refactor active lock
>>> management
>>>
>>> I am using pahole v1.27.
>>>
>>> I am using an llvm built from upstream. The following is llvm-project
>>> head:
>>> beb12f92c71981670e07e47275efc6b5647011c1 (HEAD -> main) [RISCV] Add
>>> +optimized-nfN-segment-load-store (#114414)
>>> 6bad4514c938b3b48c0c719b8dd98b3906f2c290 [AArch64] Extend vector mull
>>> test coverage. NFC
>>> 915b910d800d7fab6a692294ff1d7075d8cba824 [libc] Fix typos in proxy type
>>> headers (#114717)
>>> 98ea1a81a28a6dd36941456c8ab4ce46f665f57a [IPO] Remove unused includes
>>> (NFC) (#114716)
>>>
>>> With the above setup, when to do
>>>
>>> pahole -JV --
>>> btf_features=encode_force,var,float,enum64,decl_tag,type_tag,optimized_func,consistent_func,decl_tag_kfuncs vmlinux >& log.pahole
>>>
>>> You will find the below info in the log:
>>>    skipping addition of 'perf_event_read'(perf_event_read) due to
>>> unexpected register used for paramet
>>>
>>> In the dwarf:
>>>
>>> 0x02122746:   DW_TAG_subprogram
>>>                  DW_AT_low_pc    (0xffffffff81299740)
>>>                  DW_AT_high_pc   (0xffffffff812999f7)
>>>                  DW_AT_frame_base        (DW_OP_reg7 RSP)
>>>                  DW_AT_GNU_all_call_sites        (true)
>>>                  DW_AT_name      ("perf_event_read")
>>>                  DW_AT_decl_file ("/home/yhs/work/bpf-next/kernel/
>>> events/
>>> core.c")
>>>                  DW_AT_decl_line (4746)
>>>                  DW_AT_prototyped        (true)
>>>                  DW_AT_type      (0x020f95f5 "int")
>>>
>>> 0x02122760:     DW_TAG_formal_parameter
>>>                    DW_AT_location        (0x00769b72:
>>>                       [0xffffffff81299745, 0xffffffff81299764):
>>> DW_OP_reg5 RDI
>>>                       [0xffffffff81299764, 0xffffffff81299937):
>>> DW_OP_reg3 RBX
>>>                       [0xffffffff81299937, 0xffffffff812999f0):
>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>>                       [0xffffffff812999f0, 0xffffffff812999f7):
>>> DW_OP_reg3 RBX)
>>>                    DW_AT_name    ("event")
>>>                    DW_AT_decl_file       ("/home/yhs/work/bpf-next/
>>> kernel/events/core.c")
>>>                    DW_AT_decl_line       (4746)
>>>                    DW_AT_type    (0x0210f654 "perf_event *")
>>>                      0x02122770:     DW_TAG_formal_parameter
>>>                    DW_AT_location        (0x00769c61:
>>>                       [0xffffffff81299758, 0xffffffff81299926):
>>> DW_OP_reg6 RBP
>>>                       [0xffffffff81299926, 0xffffffff812999f0):
>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>>                       [0xffffffff812999f0, 0xffffffff812999f7):
>>> DW_OP_reg6 RBP)
>>>                    DW_AT_name    ("group")
>>>                    DW_AT_decl_file       ("/home/yhs/work/bpf-next/
>>> kernel/events/core.c")
>>>
>>> The above is slightly different from our production kernel where Song
>>> reported. But essence is the same.
>>> The second parameter needs to check DW_OP_GNU_entry_value(DW_OP_reg4
>>> RSI) to ensure the second
>>> argument is available.
>>>
>>> My patch is supposed to only make improvement. I am curiously why you
>>> get less functions encoded in BTF.
>>>
>> Thanks for the config etc! When I build bpf-next using master branch
>> llvm and this config, I see
>>
>> with baseline (master branch pahole): 62371 functions, no perf_event_read
>> your series on top of master branch pahole: 62433 functions,
>> perf_event_read present
>>
>> So that's consistent with what I've seen with other configs; more
>> functions are present in vmlinux BTF since we are now seeing more cases
>> where parameters are in fact consistent.  The part that confuses me
>> though is the numbers you initially reported above
>>
>> "for one of internal 6.11 kernel, there are 62498 functions in BTF and
>> perf_event_read() is not there. With this patch, there are 61552
>> functions in BTF and perf_event_read() is included."
>>
>> These numbers suggest you lost nearly 1000 functions when building
>> vmlinux BTF with pahole using this series. That's the part I don't
>> understand - we should just see a gain in numbers of functions in
>> vmlinux BTF, right? Did you mean 62552 functions rather than 61552
>> perhaps?
> 
> Sorry, really embarrassing. it is typo. Indeed it should be 62552 functions
> in BTF instead.
>

No problem, makes perfect sense now, thanks! I'm trying to reproduce the
core dumps Eduard saw now with this setup; I'll report back if I manage
to do so and see if locks as Jiri and Arnaldo suggested help. If so a v2
along the lines of Eduard's suggested change plus locking might be the
best approach, what do you think? Thanks!

Alan

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

On 11/12/24 10:33 AM, Alan Maguire wrote:
> On 12/11/2024 17:07, Yonghong Song wrote:
>>
>>
>> On 11/12/24 8:56 AM, Alan Maguire wrote:
>>> On 12/11/2024 01:51, Yonghong Song wrote:
>>>>
>>>> On 11/11/24 7:39 AM, Alan Maguire wrote:
>>>>> On 08/11/2024 18:05, Yonghong Song wrote:
>>>>>> Song Liu reported that a kernel func (perf_event_read()) cannot be
>>>>>> traced
>>>>>> in certain situations since the func is not in vmlinux bTF. This
>>>>>> happens
>>>>>> in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.
>>>>>>
>>>>>> The perf_event_read() signature in kernel (kernel/events/core.c):
>>>>>>       static int perf_event_read(struct perf_event *event, bool group)
>>>>>>
>>>>>> Adding '-V' to pahole command line, and the following error msg can
>>>>>> be found:
>>>>>>       skipping addition of 'perf_event_read'(perf_event_read) due to
>>>>>> unexpected register used for parameter
>>>>>>
>>>>>> Eventually the error message is attributed to the setting
>>>>>> (parm->unexpected_reg = 1) in parameter__new() function.
>>>>>>
>>>>>> The following is the dwarf representation for perf_event_read():
>>>>>>        0x0334c034:   DW_TAG_subprogram
>>>>>>                    DW_AT_low_pc    (0xffffffff812c6110)
>>>>>>                    DW_AT_high_pc   (0xffffffff812c640a)
>>>>>>                    DW_AT_frame_base        (DW_OP_reg7 RSP)
>>>>>>                    DW_AT_GNU_all_call_sites        (true)
>>>>>>                    DW_AT_name      ("perf_event_read")
>>>>>>                    DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
>>>>>>                    DW_AT_decl_line (4641)
>>>>>>                    DW_AT_prototyped        (true)
>>>>>>                    DW_AT_type      (0x03324f6a "int")
>>>>>>        0x0334c04e:     DW_TAG_formal_parameter
>>>>>>                      DW_AT_location        (0x007de9fd:
>>>>>>                         [0xffffffff812c6115, 0xffffffff812c6141):
>>>>>> DW_OP_reg5 RDI
>>>>>>                         [0xffffffff812c6141, 0xffffffff812c6323):
>>>>>> DW_OP_reg14 R14
>>>>>>                         [0xffffffff812c6323, 0xffffffff812c63fe):
>>>>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>>>>>                         [0xffffffff812c63fe, 0xffffffff812c6405):
>>>>>> DW_OP_reg14 R14
>>>>>>                         [0xffffffff812c6405, 0xffffffff812c640a):
>>>>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
>>>>>>                      DW_AT_name    ("event")
>>>>>>                      DW_AT_decl_file       ("/rw/compile/kernel/events/
>>>>>> core.c")
>>>>>>                      DW_AT_decl_line       (4641)
>>>>>>                      DW_AT_type    (0x0333aac2 "perf_event *")
>>>>>>        0x0334c05e:     DW_TAG_formal_parameter
>>>>>>                      DW_AT_location        (0x007dea82:
>>>>>>                         [0xffffffff812c6137, 0xffffffff812c63f2):
>>>>>> DW_OP_reg12 R12
>>>>>>                         [0xffffffff812c63f2, 0xffffffff812c63fe):
>>>>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>>>>>                         [0xffffffff812c63fe, 0xffffffff812c640a):
>>>>>> DW_OP_reg12 R12)
>>>>>>                      DW_AT_name    ("group")
>>>>>>                      DW_AT_decl_file       ("/rw/compile/kernel/events/
>>>>>> core.c")
>>>>>>                      DW_AT_decl_line       (4641)
>>>>>>                      DW_AT_type    (0x03327059 "bool")
>>>>>>
>>>>>> By inspecting the binary, the second argument ("bool group") is used
>>>>>> in the function. The following are the disasm code:
>>>>>>        ffffffff812c6110 <perf_event_read>:
>>>>>>        ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>>>>        ffffffff812c6115: 55                    pushq   %rbp
>>>>>>        ffffffff812c6116: 41 57                 pushq   %r15
>>>>>>        ffffffff812c6118: 41 56                 pushq   %r14
>>>>>>        ffffffff812c611a: 41 55                 pushq   %r13
>>>>>>        ffffffff812c611c: 41 54                 pushq   %r12
>>>>>>        ffffffff812c611e: 53                    pushq   %rbx
>>>>>>        ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
>>>>>>        ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
>>>>>>        <=========== NOTE that here '%esi' is used and moved to '%r12d'.
>>>>>>        ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
>>>>>>        ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40,
>>>>>> %rax
>>>>>>        ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
>>>>>>        ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
>>>>>>        ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
>>>>>>        ffffffff812c613f: 75 3f                 jne
>>>>>> 0xffffffff812c6180 <perf_event_read+0x70>
>>>>>>        ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:
>>>>>> (%rax,%rax)
>>>>>>        ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
>>>>>>        ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
>>>>>>        ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
>>>>>>        ffffffff812c615a: e8 c1 a0 d7 00        callq
>>>>>> 0xffffffff82040220 <_raw_spin_lock_irqsave>
>>>>>>        ffffffff812c615f: 49 89 c7              movq    %rax, %r15
>>>>>>        ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
>>>>>>        ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
>>>>>>        ffffffff812c616b: 0f 84 9a 00 00 00     je
>>>>>> 0xffffffff812c620b <perf_event_read+0xfb>
>>>>>>        ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
>>>>>>        ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
>>>>>>        <=========== NOTE: %rsi is overwritten
>>>>>>        ......
>>>>>>        ffffffff812c63f0: 41 5c                 popq    %r12
>>>>>>        <============ POP r12
>>>>>>        ffffffff812c63f2: 41 5d                 popq    %r13
>>>>>>        ffffffff812c63f4: 41 5e                 popq    %r14
>>>>>>        ffffffff812c63f6: 41 5f                 popq    %r15
>>>>>>        ffffffff812c63f8: 5d                    popq    %rbp
>>>>>>        ffffffff812c63f9: e9 e2 a8 d7 00        jmp
>>>>>> 0xffffffff82040ce0 <__x86_return_thunk>
>>>>>>        ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
>>>>>>        ffffffff812c6400: e9 be fe ff ff        jmp
>>>>>> 0xffffffff812c62c3 <perf_event_read+0x1b3>
>>>>>>
>>>>>> It is not clear why dwarf didn't encode %rsi in locations. But
>>>>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
>>>>>> the entry of perf_event_read(). So this patch tries to search
>>>>>> DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
>>>>>> the expected parameter register matchs the register in
>>>>>> DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
>>>>>> is not optimized.
>>>>>>
>>>>>> For one of internal 6.11 kernel, there are 62498 functions in BTF and
>>>>>> perf_event_read() is not there. With this patch, there are 61552
>>>>>> functions
>>>>>> in BTF and perf_event_read() is included.
>>>>>>
>>>>> hi Yonghong,
>>>>>
>>>>> I'm confused by these numbers. I would have thought your changes would
>>>>> have led to a net increase of functions encoded in vmlinux BTF since we
>>>>> are now likely catching more cases where registers are expected.
>>>>> When I
>>>>> ran your patches against an LLVM-built kernel, that's what I saw; 70
>>>>> additional functions were recognized as having expected parameters, and
>>>>> thus were encoded in BTF. In your case it looks like we lost nearly
>>>>> 1000
>>>>> functions. Any idea what's going on there? If you can share your
>>>>> config,
>>>>> LLVM version I can dig into this from my side too. Thanks!
>>>> Attached is my config (based on one of meta internal configs). I tried
>>>> with master branch with head:
>>>>
>>>> 7b6e5bfa2541380b478ea1532880210ea3e39e11 (HEAD -> master, origin/master,
>>>> origin/HEAD) Merge branch 'refactor-lock-management'
>>>> ae6e3a273f590a2b64f14a9fab3546c3a8f44ed4 bpf: Drop special callback
>>>> reference handling
>>>> f6b9a69a9e56b2083aca8a925fc1a28eb698e3ed bpf: Refactor active lock
>>>> management
>>>>
>>>> I am using pahole v1.27.
>>>>
>>>> I am using an llvm built from upstream. The following is llvm-project
>>>> head:
>>>> beb12f92c71981670e07e47275efc6b5647011c1 (HEAD -> main) [RISCV] Add
>>>> +optimized-nfN-segment-load-store (#114414)
>>>> 6bad4514c938b3b48c0c719b8dd98b3906f2c290 [AArch64] Extend vector mull
>>>> test coverage. NFC
>>>> 915b910d800d7fab6a692294ff1d7075d8cba824 [libc] Fix typos in proxy type
>>>> headers (#114717)
>>>> 98ea1a81a28a6dd36941456c8ab4ce46f665f57a [IPO] Remove unused includes
>>>> (NFC) (#114716)
>>>>
>>>> With the above setup, when to do
>>>>
>>>> pahole -JV --
>>>> btf_features=encode_force,var,float,enum64,decl_tag,type_tag,optimized_func,consistent_func,decl_tag_kfuncs vmlinux >& log.pahole
>>>>
>>>> You will find the below info in the log:
>>>>     skipping addition of 'perf_event_read'(perf_event_read) due to
>>>> unexpected register used for paramet
>>>>
>>>> In the dwarf:
>>>>
>>>> 0x02122746:   DW_TAG_subprogram
>>>>                   DW_AT_low_pc    (0xffffffff81299740)
>>>>                   DW_AT_high_pc   (0xffffffff812999f7)
>>>>                   DW_AT_frame_base        (DW_OP_reg7 RSP)
>>>>                   DW_AT_GNU_all_call_sites        (true)
>>>>                   DW_AT_name      ("perf_event_read")
>>>>                   DW_AT_decl_file ("/home/yhs/work/bpf-next/kernel/
>>>> events/
>>>> core.c")
>>>>                   DW_AT_decl_line (4746)
>>>>                   DW_AT_prototyped        (true)
>>>>                   DW_AT_type      (0x020f95f5 "int")
>>>>
>>>> 0x02122760:     DW_TAG_formal_parameter
>>>>                     DW_AT_location        (0x00769b72:
>>>>                        [0xffffffff81299745, 0xffffffff81299764):
>>>> DW_OP_reg5 RDI
>>>>                        [0xffffffff81299764, 0xffffffff81299937):
>>>> DW_OP_reg3 RBX
>>>>                        [0xffffffff81299937, 0xffffffff812999f0):
>>>> DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
>>>>                        [0xffffffff812999f0, 0xffffffff812999f7):
>>>> DW_OP_reg3 RBX)
>>>>                     DW_AT_name    ("event")
>>>>                     DW_AT_decl_file       ("/home/yhs/work/bpf-next/
>>>> kernel/events/core.c")
>>>>                     DW_AT_decl_line       (4746)
>>>>                     DW_AT_type    (0x0210f654 "perf_event *")
>>>>                       0x02122770:     DW_TAG_formal_parameter
>>>>                     DW_AT_location        (0x00769c61:
>>>>                        [0xffffffff81299758, 0xffffffff81299926):
>>>> DW_OP_reg6 RBP
>>>>                        [0xffffffff81299926, 0xffffffff812999f0):
>>>> DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
>>>>                        [0xffffffff812999f0, 0xffffffff812999f7):
>>>> DW_OP_reg6 RBP)
>>>>                     DW_AT_name    ("group")
>>>>                     DW_AT_decl_file       ("/home/yhs/work/bpf-next/
>>>> kernel/events/core.c")
>>>>
>>>> The above is slightly different from our production kernel where Song
>>>> reported. But essence is the same.
>>>> The second parameter needs to check DW_OP_GNU_entry_value(DW_OP_reg4
>>>> RSI) to ensure the second
>>>> argument is available.
>>>>
>>>> My patch is supposed to only make improvement. I am curiously why you
>>>> get less functions encoded in BTF.
>>>>
>>> Thanks for the config etc! When I build bpf-next using master branch
>>> llvm and this config, I see
>>>
>>> with baseline (master branch pahole): 62371 functions, no perf_event_read
>>> your series on top of master branch pahole: 62433 functions,
>>> perf_event_read present
>>>
>>> So that's consistent with what I've seen with other configs; more
>>> functions are present in vmlinux BTF since we are now seeing more cases
>>> where parameters are in fact consistent.  The part that confuses me
>>> though is the numbers you initially reported above
>>>
>>> "for one of internal 6.11 kernel, there are 62498 functions in BTF and
>>> perf_event_read() is not there. With this patch, there are 61552
>>> functions in BTF and perf_event_read() is included."
>>>
>>> These numbers suggest you lost nearly 1000 functions when building
>>> vmlinux BTF with pahole using this series. That's the part I don't
>>> understand - we should just see a gain in numbers of functions in
>>> vmlinux BTF, right? Did you mean 62552 functions rather than 61552
>>> perhaps?
>> Sorry, really embarrassing. it is typo. Indeed it should be 62552 functions
>> in BTF instead.
>>
> No problem, makes perfect sense now, thanks! I'm trying to reproduce the
> core dumps Eduard saw now with this setup; I'll report back if I manage
> to do so and see if locks as Jiri and Arnaldo suggested help. If so a v2
> along the lines of Eduard's suggested change plus locking might be the
> best approach, what do you think? Thanks!

Thanks Alan. I will wait for your patch to fix locking issue and then
submitting v2 with your patch.

I am just starting to reproduce the issue as well with Eduard's original
script (running pahole in a loop with -j). Currently it run to iteratio 28
and not failure yet.

>
> Alan

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Arnaldo Carvalho de Melo]

On Tue, Nov 12, 2024 at 06:33:38PM +0000, Alan Maguire wrote:
> On 12/11/2024 17:07, Yonghong Song wrote:
> > On 11/12/24 8:56 AM, Alan Maguire wrote:
> >> On 12/11/2024 01:51, Yonghong Song wrote:
> >>> On 11/11/24 7:39 AM, Alan Maguire wrote:
> >> "for one of internal 6.11 kernel, there are 62498 functions in BTF and
> >> perf_event_read() is not there. With this patch, there are 61552
> >> functions in BTF and perf_event_read() is included."

> >> These numbers suggest you lost nearly 1000 functions when building
> >> vmlinux BTF with pahole using this series. That's the part I don't
> >> understand - we should just see a gain in numbers of functions in
> >> vmlinux BTF, right? Did you mean 62552 functions rather than 61552
> >> perhaps?
 
> > Sorry, really embarrassing. it is typo. Indeed it should be 62552 functions
> > in BTF instead.
 
> No problem, makes perfect sense now, thanks! I'm trying to reproduce the
> core dumps Eduard saw now with this setup; I'll report back if I manage
> to do so and see if locks as Jiri and Arnaldo suggested help. If so a v2
> along the lines of Eduard's suggested change plus locking might be the
> best approach, what do you think? Thanks!

So the idea is to try to see what are the data structures that are
being corrupted in the features we use from elfutils libraries and check
how they are being protected via their non-default enabled experimental
thread safety locks and then use it before calling their functions that
would use those locks.

At some point we need to do some feature check to see if the lock is
enabled there and avoid adding it from pahole's side.

I.e. a transitional strategy to keep pahole -j feature that works with
older elfutils versions as well as with modern, thread safe ones.

This was used with the existing libdw__lock we have in the pahole
codebase with, AFAIK, good results.

- Arnaldo

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Alan Maguire]

[-- Attachment #1: Type: text/plain, Size: 2663 bytes --]

On 12/11/2024 19:10, Arnaldo Carvalho de Melo wrote:
> On Tue, Nov 12, 2024 at 06:33:38PM +0000, Alan Maguire wrote:
>> On 12/11/2024 17:07, Yonghong Song wrote:
>>> On 11/12/24 8:56 AM, Alan Maguire wrote:
>>>> On 12/11/2024 01:51, Yonghong Song wrote:
>>>>> On 11/11/24 7:39 AM, Alan Maguire wrote:
>>>> "for one of internal 6.11 kernel, there are 62498 functions in BTF and
>>>> perf_event_read() is not there. With this patch, there are 61552
>>>> functions in BTF and perf_event_read() is included."
> 
>>>> These numbers suggest you lost nearly 1000 functions when building
>>>> vmlinux BTF with pahole using this series. That's the part I don't
>>>> understand - we should just see a gain in numbers of functions in
>>>> vmlinux BTF, right? Did you mean 62552 functions rather than 61552
>>>> perhaps?tion
>  
>>> Sorry, really embarrassing. it is typo. Indeed it should be 62552 functions
>>> in BTF instead.
>  
>> No problem, makes perfect sense now, thanks! I'm trying to reproduce the
>> core dumps Eduard saw now with this setup; I'll report back if I manage
>> to do so and see if locks as Jiri and Arnaldo suggested help. If so a v2
>> along the lines of Eduard's suggested change plus locking might be the
>> best approach, what do you think? Thanks!
> 
> So the idea is to try to see what are the data structures that are
> being corrupted in the features we use from elfutils libraries and check
> how they are being protected via their non-default enabled experimental
> thread safety locks and then use it before calling their functions that
> would use those locks.
> 
> At some point we need to do some feature check to see if the lock is
> enabled there and avoid adding it from pahole's side.
> 
> I.e. a transitional strategy to keep pahole -j feature that works with
> older elfutils versions as well as with modern, thread safe ones.
> 
> This was used with the existing libdw__lock we have in the pahole
> codebase with, AFAIK, good results.
>

Thanks for the additional info! From Eduard's analysis, it seems like it
is safer to take the libdw__lock around dwarf_getlocation(s), since
multiple threads can access the CU location cache. I've tried tweaking
Eduard's modification of Yonghong's original patch and adding a second
patch to add locking; with these two patches applied

- we see the desired behaviour where perf_event_read() is present in
BTF; and
- we don't see any segmentation faults after ~700 iterations where I saw
one every 200 or so before

Yonghong, Eduard - do these changes look okay from your side? Feel free
to resubmit if so (fixing up attributions as you see fit if they look
wrong of course). Thanks!

Alan

[-- Attachment #2: 0001-dwarf_loader-Check-DW_OP_-GNU_-entry_value-for-possi.patch --]
[-- Type: text/x-patch, Size: 10594 bytes --]

From 564a6c2ed4a79aaed63c2b8d1a50db40d39c17ae Mon Sep 17 00:00:00 2001
From: Eduard Zingerman <eddyz87@gmail.com>
Date: Wed, 13 Nov 2024 07:00:00 +0000
Subject: [PATCH dwarves 1/2] dwarf_loader: Check DW_OP_[GNU_]entry_value for
 possible parameter matching

Song Liu reported that a kernel func (perf_event_read()) cannot be traced
in certain situations since the func is not in vmlinux bTF. This happens
in kernels 6.4, 6.9 and 6.11 and the kernel is built with pahole 1.27.

The perf_event_read() signature in kernel (kernel/events/core.c):
   static int perf_event_read(struct perf_event *event, bool group)

Adding '-V' to pahole command line, and the following error msg can be found:
   skipping addition of 'perf_event_read'(perf_event_read) due to unexpected register used for parameter

Eventually the error message is attributed to the setting
(parm->unexpected_reg = 1) in parameter__new() function.

The following is the dwarf representation for perf_event_read():
    0x0334c034:   DW_TAG_subprogram
                DW_AT_low_pc    (0xffffffff812c6110)
                DW_AT_high_pc   (0xffffffff812c640a)
                DW_AT_frame_base        (DW_OP_reg7 RSP)
                DW_AT_GNU_all_call_sites        (true)
                DW_AT_name      ("perf_event_read")
                DW_AT_decl_file ("/rw/compile/kernel/events/core.c")
                DW_AT_decl_line (4641)
                DW_AT_prototyped        (true)
                DW_AT_type      (0x03324f6a "int")
    0x0334c04e:     DW_TAG_formal_parameter
                  DW_AT_location        (0x007de9fd:
                     [0xffffffff812c6115, 0xffffffff812c6141): DW_OP_reg5 RDI
                     [0xffffffff812c6141, 0xffffffff812c6323): DW_OP_reg14 R14
                     [0xffffffff812c6323, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
                     [0xffffffff812c63fe, 0xffffffff812c6405): DW_OP_reg14 R14
                     [0xffffffff812c6405, 0xffffffff812c640a): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
                  DW_AT_name    ("event")
                  DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
                  DW_AT_decl_line       (4641)
                  DW_AT_type    (0x0333aac2 "perf_event *")
    0x0334c05e:     DW_TAG_formal_parameter
                  DW_AT_location        (0x007dea82:
                     [0xffffffff812c6137, 0xffffffff812c63f2): DW_OP_reg12 R12
                     [0xffffffff812c63f2, 0xffffffff812c63fe): DW_OP_GNU_entry_value(DW_OP_reg4 RSI), DW_OP_stack_value
                     [0xffffffff812c63fe, 0xffffffff812c640a): DW_OP_reg12 R12)
                  DW_AT_name    ("group")
                  DW_AT_decl_file       ("/rw/compile/kernel/events/core.c")
                  DW_AT_decl_line       (4641)
                  DW_AT_type    (0x03327059 "bool")

By inspecting the binary, the second argument ("bool group") is used
in the function. The following are the disasm code:
    ffffffff812c6110 <perf_event_read>:
    ffffffff812c6110: 0f 1f 44 00 00        nopl    (%rax,%rax)
    ffffffff812c6115: 55                    pushq   %rbp
    ffffffff812c6116: 41 57                 pushq   %r15
    ffffffff812c6118: 41 56                 pushq   %r14
    ffffffff812c611a: 41 55                 pushq   %r13
    ffffffff812c611c: 41 54                 pushq   %r12
    ffffffff812c611e: 53                    pushq   %rbx
    ffffffff812c611f: 48 83 ec 18           subq    $24, %rsp
    ffffffff812c6123: 41 89 f4              movl    %esi, %r12d
    <=========== NOTE that here '%esi' is used and moved to '%r12d'.
    ffffffff812c6126: 49 89 fe              movq    %rdi, %r14
    ffffffff812c6129: 65 48 8b 04 25 28 00 00 00    movq    %gs:40, %rax
    ffffffff812c6132: 48 89 44 24 10        movq    %rax, 16(%rsp)
    ffffffff812c6137: 8b af a8 00 00 00     movl    168(%rdi), %ebp
    ffffffff812c613d: 85 ed                 testl   %ebp, %ebp
    ffffffff812c613f: 75 3f                 jne     0xffffffff812c6180 <perf_event_read+0x70>
    ffffffff812c6141: 66 2e 0f 1f 84 00 00 00 00 00 nopw    %cs:(%rax,%rax)
    ffffffff812c614b: 0f 1f 44 00 00        nopl    (%rax,%rax)
    ffffffff812c6150: 49 8b 9e 28 02 00 00  movq    552(%r14), %rbx
    ffffffff812c6157: 48 89 df              movq    %rbx, %rdi
    ffffffff812c615a: e8 c1 a0 d7 00        callq   0xffffffff82040220 <_raw_spin_lock_irqsave>
    ffffffff812c615f: 49 89 c7              movq    %rax, %r15
    ffffffff812c6162: 41 8b ae a8 00 00 00  movl    168(%r14), %ebp
    ffffffff812c6169: 85 ed                 testl   %ebp, %ebp
    ffffffff812c616b: 0f 84 9a 00 00 00     je      0xffffffff812c620b <perf_event_read+0xfb>
    ffffffff812c6171: 48 89 df              movq    %rbx, %rdi
    ffffffff812c6174: 4c 89 fe              movq    %r15, %rsi
    <=========== NOTE: %rsi is overwritten
    ......
    ffffffff812c63f0: 41 5c                 popq    %r12
    <============ POP r12
    ffffffff812c63f2: 41 5d                 popq    %r13
    ffffffff812c63f4: 41 5e                 popq    %r14
    ffffffff812c63f6: 41 5f                 popq    %r15
    ffffffff812c63f8: 5d                    popq    %rbp
    ffffffff812c63f9: e9 e2 a8 d7 00        jmp     0xffffffff82040ce0 <__x86_return_thunk>
    ffffffff812c63fe: 31 c0                 xorl    %eax, %eax
    ffffffff812c6400: e9 be fe ff ff        jmp     0xffffffff812c62c3 <perf_event_read+0x1b3>

It is not clear why dwarf didn't encode %rsi in locations. But
DW_OP_GNU_entry_value(DW_OP_reg4 RSI) tells us that RSI is live at
the entry of perf_event_read(). So this patch tries to search
DW_OP_GNU_entry_value/DW_OP_entry_value location/expression so if
the expected parameter register matchs the register in
DW_OP_GNU_entry_value/DW_OP_entry_value, then the original parameter
is not optimized.

For one of internal 6.11 kernel, there are 62498 functions in BTF and
perf_event_read() is not there. With this patch, there are 61552 functions
in BTF and perf_event_read() is included.

Reported-by: Song Liu <song@kernel.org>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
---
 dwarf_loader.c | 101 ++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 78 insertions(+), 23 deletions(-)

diff --git a/dwarf_loader.c b/dwarf_loader.c
index ec8641b..4614c82 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -1157,16 +1157,85 @@ static struct template_parameter_pack *template_parameter_pack__new(Dwarf_Die *d
 	return pack;
 }
 
+/* Returns number of locations found or negative value for errors. */
+static ptrdiff_t __dwarf_getlocations(Dwarf_Attribute *attr,
+				      ptrdiff_t offset, Dwarf_Addr *basep,
+				      Dwarf_Addr *startp, Dwarf_Addr *endp,
+				      Dwarf_Op **expr, size_t *exprlen)
+{
+	int ret;
+
+#if _ELFUTILS_PREREQ(0, 157)
+	ret = dwarf_getlocations(attr, offset, basep, startp, endp, expr, exprlen);
+#else
+	if (offset == 0) {
+		ret = dwarf_getlocation(attr, expr, exprlen);
+		if (ret == 0)
+			ret = 1;
+	}
+#endif
+	return ret;
+}
+
+/* For DW_AT_location 'attr':
+ * - if first location is DW_OP_regXX with expected number, returns the register;
+ * - if location DW_OP_entry_value(DW_OP_regXX) is in the list, returns the register;
+ * - if first location is DW_OP_regXX, returns the register;
+ * - otherwise returns -1.
+ */
+static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
+{
+	Dwarf_Addr base, start, end;
+	Dwarf_Op *expr, *entry_ops;
+	Dwarf_Attribute entry_attr;
+	size_t exprlen, entry_len;
+	ptrdiff_t offset = 0;
+	int loc_num = -1;
+	int ret = -1;
+
+	while ((offset = __dwarf_getlocations(attr, offset, &base, &start, &end, &expr, &exprlen)) > 0) {
+		loc_num++;
+
+		/* Convert expression list (XX DW_OP_stack_value) -> (XX).
+		 * DW_OP_stack_value instructs interpreter to pop current value from
+		 * DWARF expression evaluation stack, and thus is not important here.
+		 */
+		if (exprlen > 1 && expr[exprlen - 1].atom == DW_OP_stack_value)
+			exprlen--;
+
+		if (exprlen != 1)
+			continue;
+
+		switch (expr->atom) {
+		/* match DW_OP_regXX at first location */
+		case DW_OP_reg0 ... DW_OP_reg31:
+			if (loc_num != 0)
+				break;
+			ret = expr->atom;
+			if (expr->atom == expected_reg)
+				return expected_reg;
+			break;
+		/* match DW_OP_entry_value(DW_OP_regXX) at any location */
+		case DW_OP_entry_value:
+		case DW_OP_GNU_entry_value:
+			if (dwarf_getlocation_attr(attr, expr, &entry_attr) == 0 &&
+			    dwarf_getlocation(&entry_attr, &entry_ops, &entry_len) == 0 &&
+			    entry_len == 1)
+				return entry_ops->atom;
+			break;
+		}
+	}
+	return ret;
+}
+
 static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
 					struct conf_load *conf, int param_idx)
 {
 	struct parameter *parm = tag__alloc(cu, sizeof(*parm));
 
 	if (parm != NULL) {
-		Dwarf_Addr base, start, end;
 		bool has_const_value;
 		Dwarf_Attribute attr;
-		struct location loc;
 
 		tag__init(&parm->tag, cu, die);
 		parm->name = attr_string(die, DW_AT_name, conf);
@@ -1208,35 +1277,21 @@ static struct parameter *parameter__new(Dwarf_Die *die, struct cu *cu,
 		 */
 		has_const_value = dwarf_attr(die, DW_AT_const_value, &attr) != NULL;
 		parm->has_loc = dwarf_attr(die, DW_AT_location, &attr) != NULL;
-		/* dwarf_getlocations() handles location lists; here we are
-		 * only interested in the first expr.
-		 */
-		if (parm->has_loc &&
-#if _ELFUTILS_PREREQ(0, 157)
-		    dwarf_getlocations(&attr, 0, &base, &start, &end,
-				       &loc.expr, &loc.exprlen) > 0 &&
-#else
-		    dwarf_getlocation(&attr, &loc.expr, &loc.exprlen) == 0 &&
-#endif
-			loc.exprlen != 0) {
+
+		if (parm->has_loc) {
 			int expected_reg = cu->register_params[param_idx];
-			Dwarf_Op *expr = loc.expr;
+			int actual_reg = param_reg_at_entry(&attr, expected_reg);
 
-			switch (expr->atom) {
-			case DW_OP_reg0 ... DW_OP_reg31:
+			if (actual_reg < 0)
+				parm->optimized = 1;
+			else if (expected_reg >= 0 && expected_reg != actual_reg)
 				/* mark parameters that use an unexpected
 				 * register to hold a parameter; these will
 				 * be problematic for users of BTF as they
 				 * violate expectations about register
 				 * contents.
 				 */
-				if (expected_reg >= 0 && expected_reg != expr->atom)
-					parm->unexpected_reg = 1;
-				break;
-			default:
-				parm->optimized = 1;
-				break;
-			}
+				parm->unexpected_reg = 1;
 		} else if (has_const_value) {
 			parm->optimized = 1;
 		}
-- 
2.31.1


[-- Attachment #3: 0002-dwarf_loader-use-libdw__lock-for-dwarf_getlocation-s.patch --]
[-- Type: text/x-patch, Size: 3268 bytes --]

From 1356b32d418e96de71e1ed1e0f422349d3a656ee Mon Sep 17 00:00:00 2001
From: Alan Maguire <alan.maguire@oracle.com>
Date: Wed, 13 Nov 2024 17:17:17 +0000
Subject: [PATCH dwarves 2/2] dwarf_loader: use libdw__lock for
 dwarf_getlocation(s)

Eduard noticed [1] intermittent segmentation faults triggered by caching
done internally in dwarf_getlocation(s).  A binary tree of location
information is cached in the CU, and if multiple threads access it
concurrently we can get segmentation faults.  It is possible to
compile elfutils with experimental thread-safe support, but safer for
now to add locking to pahole.

No additional overhead in pahole encoding was observed
as a result of these changes.

Reported-by: Eduard Zingerman <eddyz87@gmail.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>

[1] https://lore.kernel.org/dwarves/080794545d8eb3df3d6eba90ac621111ab7171f5.camel@gmail.com/
---
 dwarf_loader.c | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/dwarf_loader.c b/dwarf_loader.c
index 4614c82..829b703 100644
--- a/dwarf_loader.c
+++ b/dwarf_loader.c
@@ -450,7 +450,14 @@ static bool attr_type(Dwarf_Die *die, uint32_t attr_name, Dwarf_Off *offset)
 static int attr_location(Dwarf_Die *die, Dwarf_Op **expr, size_t *exprlen)
 {
 	Dwarf_Attribute attr;
+	int ret = 1;
+
 	if (dwarf_attr(die, DW_AT_location, &attr) != NULL) {
+		/* use libdw__lock as dwarf_getlocation(s) has concurrency
+		 * issues when libdw is not compiled with experimental
+		 * --enable-thread-safety
+		 */
+		pthread_mutex_lock(&libdw__lock);
 		if (dwarf_getlocation(&attr, expr, exprlen) == 0) {
 			/* DW_OP_addrx needs additional lookup for real addr. */
 			if (*exprlen != 0 && expr[0]->atom == DW_OP_addrx) {
@@ -462,11 +469,12 @@ static int attr_location(Dwarf_Die *die, Dwarf_Op **expr, size_t *exprlen)
 
 				expr[0]->number = address;
 			}
-			return 0;
+			ret = 0;
 		}
+		pthread_mutex_unlock(&libdw__lock);
 	}
 
-	return 1;
+	return ret;
 }
 
 /* The struct dwarf_tag has a fixed size while the 'struct tag' is just the base
@@ -1193,6 +1201,10 @@ static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
 	int loc_num = -1;
 	int ret = -1;
 
+	/* use libdw__lock as dwarf_getlocation(s) has concurrency issues
+	 * when libdw is not compiled with experimental --enable-thread-safety
+	 */
+	pthread_mutex_lock(&libdw__lock);
 	while ((offset = __dwarf_getlocations(attr, offset, &base, &start, &end, &expr, &exprlen)) > 0) {
 		loc_num++;
 
@@ -1213,18 +1225,22 @@ static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
 				break;
 			ret = expr->atom;
 			if (expr->atom == expected_reg)
-				return expected_reg;
+				goto out;
 			break;
 		/* match DW_OP_entry_value(DW_OP_regXX) at any location */
 		case DW_OP_entry_value:
 		case DW_OP_GNU_entry_value:
 			if (dwarf_getlocation_attr(attr, expr, &entry_attr) == 0 &&
 			    dwarf_getlocation(&entry_attr, &entry_ops, &entry_len) == 0 &&
-			    entry_len == 1)
-				return entry_ops->atom;
+			    entry_len == 1) {
+				ret = entry_ops->atom;
+				goto out;
+			}
 			break;
 		}
 	}
+out:
+	pthread_mutex_unlock(&libdw__lock);
 	return ret;
 }
 
-- 
2.31.1

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

On 11/13/24 9:33 AM, Alan Maguire wrote:
> On 12/11/2024 19:10, Arnaldo Carvalho de Melo wrote:
>> On Tue, Nov 12, 2024 at 06:33:38PM +0000, Alan Maguire wrote:
>>> On 12/11/2024 17:07, Yonghong Song wrote:
>>>> On 11/12/24 8:56 AM, Alan Maguire wrote:
>>>>> On 12/11/2024 01:51, Yonghong Song wrote:
>>>>>> On 11/11/24 7:39 AM, Alan Maguire wrote:
>>>>> "for one of internal 6.11 kernel, there are 62498 functions in BTF and
>>>>> perf_event_read() is not there. With this patch, there are 61552
>>>>> functions in BTF and perf_event_read() is included."
>>>>> These numbers suggest you lost nearly 1000 functions when building
>>>>> vmlinux BTF with pahole using this series. That's the part I don't
>>>>> understand - we should just see a gain in numbers of functions in
>>>>> vmlinux BTF, right? Did you mean 62552 functions rather than 61552
>>>>> perhaps?tion
>>   
>>>> Sorry, really embarrassing. it is typo. Indeed it should be 62552 functions
>>>> in BTF instead.
>>   
>>> No problem, makes perfect sense now, thanks! I'm trying to reproduce the
>>> core dumps Eduard saw now with this setup; I'll report back if I manage
>>> to do so and see if locks as Jiri and Arnaldo suggested help. If so a v2
>>> along the lines of Eduard's suggested change plus locking might be the
>>> best approach, what do you think? Thanks!
>> So the idea is to try to see what are the data structures that are
>> being corrupted in the features we use from elfutils libraries and check
>> how they are being protected via their non-default enabled experimental
>> thread safety locks and then use it before calling their functions that
>> would use those locks.
>>
>> At some point we need to do some feature check to see if the lock is
>> enabled there and avoid adding it from pahole's side.
>>
>> I.e. a transitional strategy to keep pahole -j feature that works with
>> older elfutils versions as well as with modern, thread safe ones.
>>
>> This was used with the existing libdw__lock we have in the pahole
>> codebase with, AFAIK, good results.
>>
> Thanks for the additional info! From Eduard's analysis, it seems like it
> is safer to take the libdw__lock around dwarf_getlocation(s), since
> multiple threads can access the CU location cache. I've tried tweaking
> Eduard's modification of Yonghong's original patch and adding a second
> patch to add locking; with these two patches applied
>
> - we see the desired behaviour where perf_event_read() is present in
> BTF; and
> - we don't see any segmentation faults after ~700 iterations where I saw
> one every 200 or so before
>
> Yonghong, Eduard - do these changes look okay from your side? Feel free
> to resubmit if so (fixing up attributions as you see fit if they look
> wrong of course). Thanks!

Thanks Alan for working on this. The following are some suggestions for patch one:
   1. rename __dwarf_getlocations() to __parameter__locations()?
   2. rename param_reg_at_entry to parameter__locations()?
   3. You missed the following:
static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
{
...
         if (first_expr)                     // this line
                 return first_expr->atom;    // this line
         return -1;
}

Patch 2 needs adjustment as well due to the above point #3.
Otherwise, LGTM. Since you are already preparing the patch,
please go ahead to pose v2 after you fixing the above things.

>
> Alan

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Alan Maguire]

On 13/11/2024 18:27, Yonghong Song wrote:
>> Thanks for the additional info! From Eduard's analysis, it seems like it
>> is safer to take the libdw__lock around dwarf_getlocation(s), since
>> multiple threads can access the CU location cache. I've tried tweaking
>> Eduard's modification of Yonghong's original patch and adding a second
>> patch to add locking; with these two patches applied
>>
>> - we see the desired behaviour where perf_event_read() is present in
>> BTF; and
>> - we don't see any segmentation faults after ~700 iterations where I saw
>> one every 200 or so before
>>
>> Yonghong, Eduard - do these changes look okay from your side? Feel free
>> to resubmit if so (fixing up attributions as you see fit if they look
>> wrong of course). Thanks!
> 
> Thanks Alan for working on this. The following are some suggestions for
> patch one:
>   1. rename __dwarf_getlocations() to __parameter__locations()?
>   2. rename param_reg_at_entry to parameter__locations()?

Since it returns the register number, what about
__parameter_reg/parameter_reg()?

>   3. You missed the following:
> static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
> {
> ...
>         if (first_expr)                     // this line
>                 return first_expr->atom;    // this line
>         return -1;
> }
> 
I _think_ I've preserved the behaviour described by the comment at the
start without using the first_expr code. Note that we set "ret" in the
"case DW_OP_reg0 ... DW_OP_reg31:" clause of the switch statement, so
will return that value; either directly, if the register number matches
expected reg, or eventually if we don't find any DW_OP_*entry_value
location info to return. This I think matches the described behaviour:

/* For DW_AT_location 'attr':
 * - if first location is DW_OP_regXX with expected number, returns the
register;
 * - if location DW_OP_entry_value(DW_OP_regXX) is in the list, returns
the register;
 * - if first location is DW_OP_regXX, returns the register;
 * - otherwise returns -1.
 */

...but again I may have missed something here.

> Patch 2 needs adjustment as well due to the above point #3.
> Otherwise, LGTM. Since you are already preparing the patch,
> please go ahead to pose v2 after you fixing the above things.
> 

Sure; if the above sounds okay, I'll submit the patches with updates.
After testing over 2000 iterations of pahole, I haven't seen a
segmentation fault so I _think_ the locking in patch 2 is sufficient to
avoid crashes.

Thanks!

Alan

>>
>> Alan
> 

Re: [PATCH dwarves 3/3] dwarf_loader: Check DW_OP_[GNU_]entry_value for possible parameter matching

[Yonghong Song]

On 11/14/24 4:16 AM, Alan Maguire wrote:
> On 13/11/2024 18:27, Yonghong Song wrote:
>>> Thanks for the additional info! From Eduard's analysis, it seems like it
>>> is safer to take the libdw__lock around dwarf_getlocation(s), since
>>> multiple threads can access the CU location cache. I've tried tweaking
>>> Eduard's modification of Yonghong's original patch and adding a second
>>> patch to add locking; with these two patches applied
>>>
>>> - we see the desired behaviour where perf_event_read() is present in
>>> BTF; and
>>> - we don't see any segmentation faults after ~700 iterations where I saw
>>> one every 200 or so before
>>>
>>> Yonghong, Eduard - do these changes look okay from your side? Feel free
>>> to resubmit if so (fixing up attributions as you see fit if they look
>>> wrong of course). Thanks!
>> Thanks Alan for working on this. The following are some suggestions for
>> patch one:
>>    1. rename __dwarf_getlocations() to __parameter__locations()?
>>    2. rename param_reg_at_entry to parameter__locations()?
> Since it returns the register number, what about
> __parameter_reg/parameter_reg()?
>
>>    3. You missed the following:
>> static int param_reg_at_entry(Dwarf_Attribute *attr, int expected_reg)
>> {
>> ...
>>          if (first_expr)                     // this line
>>                  return first_expr->atom;    // this line
>>          return -1;
>> }
>>
> I _think_ I've preserved the behaviour described by the comment at the
> start without using the first_expr code. Note that we set "ret" in the
> "case DW_OP_reg0 ... DW_OP_reg31:" clause of the switch statement, so
> will return that value; either directly, if the register number matches
> expected reg, or eventually if we don't find any DW_OP_*entry_value
> location info to return. This I think matches the described behaviour:
>
> /* For DW_AT_location 'attr':
>   * - if first location is DW_OP_regXX with expected number, returns the
> register;
>   * - if location DW_OP_entry_value(DW_OP_regXX) is in the list, returns
> the register;
>   * - if first location is DW_OP_regXX, returns the register;
>   * - otherwise returns -1.
>   */
>
> ...but again I may have missed something here.

I have some comments in v2 and will reply there.

>
>> Patch 2 needs adjustment as well due to the above point #3.
>> Otherwise, LGTM. Since you are already preparing the patch,
>> please go ahead to pose v2 after you fixing the above things.
>>
> Sure; if the above sounds okay, I'll submit the patches with updates.
> After testing over 2000 iterations of pahole, I haven't seen a
> segmentation fault so I _think_ the locking in patch 2 is sufficient to
> avoid crashes.
>
> Thanks!
>
> Alan
>
>>> Alan