[PATCH 1/3] tracing: Fix F_printk()

[PATCH 1/3] tracing: Fix F_printk()

[Li Zefan]

I found some typos in F_printk(), so I wrote compile-time check
for it, and triggered some compile errors and warnings.

I've fixed them on x86_32, but I have no x86_64 in my hand, so there
may still be some compile warnings on 64bits.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 kernel/trace/trace_entries.h |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index c866d34..0c10095 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -78,7 +78,7 @@ FTRACE_ENTRY(funcgraph_entry, ftrace_graph_ent_entry,
 		__field_desc(	int,		graph_ent,	depth		)
 	),
 
-	F_printk("--> %lx (%d)", __entry->graph_ent.func, __entry->depth)
+	F_printk("--> %lx (%d)", __entry->func, __entry->depth)
 );
 
 /* Function return entry */
@@ -97,8 +97,8 @@ FTRACE_ENTRY(funcgraph_exit, ftrace_graph_ret_entry,
 
 	F_printk("<-- %lx (%d) (start: %llx  end: %llx) over: %d",
 		 __entry->func, __entry->depth,
-		 __entry->calltime, __entry->rettim,
-		 __entrty->depth)
+		 __entry->calltime, __entry->rettime,
+		 __entry->depth)
 );
 
 /*
@@ -133,7 +133,7 @@ FTRACE_ENTRY(context_switch, ctx_switch_entry,
 		FTRACE_CTX_FIELDS
 	),
 
-	F_printk(b"%u:%u:%u  ==> %u:%u:%u [%03u]",
+	F_printk("%u:%u:%u  ==> %u:%u:%u [%03u]",
 		 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
 		 __entry->next_pid, __entry->next_prio, __entry->next_state,
 		 __entry->next_cpu
@@ -257,8 +257,8 @@ FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
 		__field_desc(	unsigned char,	rw,	width	)
 	),
 
-	F_printk("%lx %lx %lx %d %lx %lx",
-		 __entry->phs, __entry->value, __entry->pc,
+	F_printk("%lx %lx %lx %d %x %x",
+		 (unsigned long)__entry->phys, __entry->value, __entry->pc,
 		 __entry->map_id, __entry->opcode, __entry->width)
 );
 
@@ -275,8 +275,8 @@ FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
 		__field_desc(	unsigned char,	map,	opcode	)
 	),
 
-	F_printk("%lx %lx %lx %d %lx",
-		 __entry->phs, __entry->virt, __entry->len,
+	F_printk("%lx %lx %lx %d %x",
+		 (unsigned long)__entry->phys, __entry->virt, __entry->len,
 		 __entry->map_id, __entry->opcode)
 );
 
@@ -370,7 +370,7 @@ FTRACE_ENTRY(kmem_alloc, kmemtrace_alloc_entry,
 		__field(	int,			node		)
 	),
 
-	F_printk("type:%u call_site:%lx ptr:%p req:%lu alloc:%lu"
+	F_printk("type:%u call_site:%lx ptr:%p req:%zi alloc:%zi"
 		 " flags:%x node:%d",
 		 __entry->type_id, __entry->call_site, __entry->ptr,
 		 __entry->bytes_req, __entry->bytes_alloc,
-- 
1.6.3

[PATCH 2/3] ftrace: Add compile-time check on F_printk()

[Li Zefan]

Make sure F_printk() has corrent format and args, and make sure
changes in F_STRUCT() won't break F_printk().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 kernel/trace/trace_export.c |   45 +++++++++++++++++++++++++++++++++++++++---
 1 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 4cb29d8..26e52df 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -23,6 +23,47 @@
 #define __field_struct(type, item)
 
 #undef __field
+#define __field(type, item)				type item;
+
+#undef __field_desc
+#define __field_desc(type, container, item)		type item;
+
+#undef __array
+#define __array(type, item, size)			type item[size];
+
+#undef __array_desc
+#define __array_desc(type, container, item, size)	type item[size];
+
+#undef __dynamic_array
+#define __dynamic_array(type, item)			type item[];
+
+#undef F_STRUCT
+#define F_STRUCT(args...)				args
+
+#undef F_printk
+#define F_printk(fmt, args...) fmt, args
+
+#undef FTRACE_ENTRY
+#define FTRACE_ENTRY(name, struct_name, id, tstruct, print)	\
+struct ____ftrace_##name {					\
+	tstruct							\
+};								\
+static void __used ____ftrace_check_##name(void)		\
+{								\
+	struct ____ftrace_##name *__entry = NULL;		\
+								\
+	/* force cmpile-time check on F_printk() */		\
+	printk(print);						\
+}
+
+#undef FTRACE_ENTRY_DUP
+#define FTRACE_ENTRY_DUP(name, struct_name, id, tstruct, print)	\
+	FTRACE_ENTRY(name, struct_name, id, PARAMS(tstruct), PARAMS(print))
+
+#include "trace_entries.h"
+
+
+#undef __field
 #define __field(type, item)						\
 	ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t"	\
 			       "offset:%zu;\tsize:%zu;\n",		\
@@ -88,10 +129,6 @@ ftrace_format_##name(struct ftrace_event_call *unused,			\
 	return ret;							\
 }
 
-#undef FTRACE_ENTRY_DUP
-#define FTRACE_ENTRY_DUP(name, struct_name, id, tstruct, print)	\
-	FTRACE_ENTRY(name, struct_name, id, PARAMS(tstruct), PARAMS(print))
-
 #include "trace_entries.h"
 
 
-- 
1.6.3

[PATCH 3/3] tracing: Remove some unused macros

[Li Zefan]

- remove FTRACE_ENTRY_STRUCT_ONLY()
- remove TRACE_XXX() macros

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 kernel/trace/trace_entries.h |    9 ---------
 kernel/trace/trace_export.c  |   26 --------------------------
 2 files changed, 0 insertions(+), 35 deletions(-)

diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index 0c10095..a431748 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -116,15 +116,6 @@ FTRACE_ENTRY(funcgraph_exit, ftrace_graph_ret_entry,
 	__field(	unsigned char,	next_state	)	\
 	__field(	unsigned int,	next_cpu	)
 
-#if 0
-FTRACE_ENTRY_STRUCT_ONLY(ctx_switch_entry,
-
-	F_STRUCT(
-		FTRACE_CTX_FIELDS
-	)
-);
-#endif
-
 FTRACE_ENTRY(context_switch, ctx_switch_entry,
 
 	TRACE_CTX,
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 26e52df..1c12979 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -209,32 +209,6 @@ ftrace_define_fields_##name(struct ftrace_event_call *event_call)	\
 #undef __dynamic_array
 #define __dynamic_array(type, item)
 
-
-#undef TRACE_ZERO_CHAR
-#define TRACE_ZERO_CHAR(arg)
-
-#undef TRACE_FIELD
-#define TRACE_FIELD(type, item, assign)\
-	entry->item = assign;
-
-#undef TRACE_FIELD
-#define TRACE_FIELD(type, item, assign)\
-	entry->item = assign;
-
-#undef TRACE_FIELD_SIGN
-#define TRACE_FIELD_SIGN(type, item, assign, is_signed)	\
-	TRACE_FIELD(type, item, assign)
-
-#undef TP_CMD
-#define TP_CMD(cmd...)	cmd
-
-#undef TRACE_ENTRY
-#define TRACE_ENTRY	entry
-
-#undef TRACE_FIELD_SPECIAL
-#define TRACE_FIELD_SPECIAL(type_item, item, len, cmd)	\
-	cmd;
-
 #undef FTRACE_ENTRY
 #define FTRACE_ENTRY(call, struct_name, type, tstruct, print)		\
 static int ftrace_raw_init_event_##call(void);				\
-- 
1.6.3

Re: [PATCH 2/3] ftrace: Add compile-time check on F_printk()

[Li Zefan]

> +static void __used ____ftrace_check_##name(void)		\

oops, I should use "__maybe_unused"..

> +{								\
> +	struct ____ftrace_##name *__entry = NULL;		\
> +								\
> +	/* force cmpile-time check on F_printk() */		\
> +	printk(print);						\
> +}

Re: [PATCH 3/3] tracing: Remove some unused macros

[Steven Rostedt]

On Mon, 2009-09-14 at 15:55 +0800, Li Zefan wrote:
> - remove FTRACE_ENTRY_STRUCT_ONLY()
> - remove TRACE_XXX() macros
> 
> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
> ---
>  kernel/trace/trace_entries.h |    9 ---------
>  kernel/trace/trace_export.c  |   26 --------------------------
>  2 files changed, 0 insertions(+), 35 deletions(-)
> 
> diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
> index 0c10095..a431748 100644
> --- a/kernel/trace/trace_entries.h
> +++ b/kernel/trace/trace_entries.h
> @@ -116,15 +116,6 @@ FTRACE_ENTRY(funcgraph_exit, ftrace_graph_ret_entry,
>  	__field(	unsigned char,	next_state	)	\
>  	__field(	unsigned int,	next_cpu	)
>  
> -#if 0
> -FTRACE_ENTRY_STRUCT_ONLY(ctx_switch_entry,
> -
> -	F_STRUCT(
> -		FTRACE_CTX_FIELDS
> -	)
> -);
> -#endif

Ug! Where's my paper bag.

Thanks Li! I'll pull them in later today.

-- Steve

> -
>  FTRACE_ENTRY(context_switch, ctx_switch_entry,
>  
>  	TRACE_CTX,
> diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
> index 26e52df..1c12979 100644
> --- a/kernel/trace/trace_export.c
> +++ b/kernel/trace/trace_export.c
> @@ -209,32 +209,6 @@ ftrace_define_fields_##name(struct ftrace_event_call *event_call)	\
>  #undef __dynamic_array
>  #define __dynamic_array(type, item)
>  
> -
> -#undef TRACE_ZERO_CHAR
> -#define TRACE_ZERO_CHAR(arg)
> -
> -#undef TRACE_FIELD
> -#define TRACE_FIELD(type, item, assign)\
> -	entry->item = assign;
> -
> -#undef TRACE_FIELD
> -#define TRACE_FIELD(type, item, assign)\
> -	entry->item = assign;
> -
> -#undef TRACE_FIELD_SIGN
> -#define TRACE_FIELD_SIGN(type, item, assign, is_signed)	\
> -	TRACE_FIELD(type, item, assign)
> -
> -#undef TP_CMD
> -#define TP_CMD(cmd...)	cmd
> -
> -#undef TRACE_ENTRY
> -#define TRACE_ENTRY	entry
> -
> -#undef TRACE_FIELD_SPECIAL
> -#define TRACE_FIELD_SPECIAL(type_item, item, len, cmd)	\
> -	cmd;
> -
>  #undef FTRACE_ENTRY
>  #define FTRACE_ENTRY(call, struct_name, type, tstruct, print)		\
>  static int ftrace_raw_init_event_##call(void);				\

[tip:tracing/core] tracing: fix F_printk() typos

[tip-bot for Li Zefan]

Commit-ID:  c16de8fd7a608aba8708dd056cf6e4d9462e800a
Gitweb:     http://git.kernel.org/tip/c16de8fd7a608aba8708dd056cf6e4d9462e800a
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Mon, 14 Sep 2009 15:51:39 +0800
Committer:  Steven Rostedt <rostedt@goodmis.org>
CommitDate: Mon, 14 Sep 2009 11:40:59 -0400

tracing: fix F_printk() typos

I found some typos in F_printk(), so I wrote compile-time check
for it, and triggered some compile errors and warnings.

I've fixed them on x86_32, but I have no x86_64 in my hand, so there
may still be some compile warnings on 64bits.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4AADF60B.5070407@cn.fujitsu.com>

[ tested on x86_64, and works fine ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>


---
 kernel/trace/trace_entries.h |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index c866d34..0c10095 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -78,7 +78,7 @@ FTRACE_ENTRY(funcgraph_entry, ftrace_graph_ent_entry,
 		__field_desc(	int,		graph_ent,	depth		)
 	),
 
-	F_printk("--> %lx (%d)", __entry->graph_ent.func, __entry->depth)
+	F_printk("--> %lx (%d)", __entry->func, __entry->depth)
 );
 
 /* Function return entry */
@@ -97,8 +97,8 @@ FTRACE_ENTRY(funcgraph_exit, ftrace_graph_ret_entry,
 
 	F_printk("<-- %lx (%d) (start: %llx  end: %llx) over: %d",
 		 __entry->func, __entry->depth,
-		 __entry->calltime, __entry->rettim,
-		 __entrty->depth)
+		 __entry->calltime, __entry->rettime,
+		 __entry->depth)
 );
 
 /*
@@ -133,7 +133,7 @@ FTRACE_ENTRY(context_switch, ctx_switch_entry,
 		FTRACE_CTX_FIELDS
 	),
 
-	F_printk(b"%u:%u:%u  ==> %u:%u:%u [%03u]",
+	F_printk("%u:%u:%u  ==> %u:%u:%u [%03u]",
 		 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
 		 __entry->next_pid, __entry->next_prio, __entry->next_state,
 		 __entry->next_cpu
@@ -257,8 +257,8 @@ FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
 		__field_desc(	unsigned char,	rw,	width	)
 	),
 
-	F_printk("%lx %lx %lx %d %lx %lx",
-		 __entry->phs, __entry->value, __entry->pc,
+	F_printk("%lx %lx %lx %d %x %x",
+		 (unsigned long)__entry->phys, __entry->value, __entry->pc,
 		 __entry->map_id, __entry->opcode, __entry->width)
 );
 
@@ -275,8 +275,8 @@ FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
 		__field_desc(	unsigned char,	map,	opcode	)
 	),
 
-	F_printk("%lx %lx %lx %d %lx",
-		 __entry->phs, __entry->virt, __entry->len,
+	F_printk("%lx %lx %lx %d %x",
+		 (unsigned long)__entry->phys, __entry->virt, __entry->len,
 		 __entry->map_id, __entry->opcode)
 );
 
@@ -370,7 +370,7 @@ FTRACE_ENTRY(kmem_alloc, kmemtrace_alloc_entry,
 		__field(	int,			node		)
 	),
 
-	F_printk("type:%u call_site:%lx ptr:%p req:%lu alloc:%lu"
+	F_printk("type:%u call_site:%lx ptr:%p req:%zi alloc:%zi"
 		 " flags:%x node:%d",
 		 __entry->type_id, __entry->call_site, __entry->ptr,
 		 __entry->bytes_req, __entry->bytes_alloc,

[tip:tracing/core] ftrace: add compile-time check on F_printk()

[tip-bot for Li Zefan]

Commit-ID:  05ffa2d02066c2cb169c02d5417308ee8ecab638
Gitweb:     http://git.kernel.org/tip/05ffa2d02066c2cb169c02d5417308ee8ecab638
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Mon, 14 Sep 2009 15:54:52 +0800
Committer:  Steven Rostedt <rostedt@goodmis.org>
CommitDate: Mon, 14 Sep 2009 11:42:10 -0400

ftrace: add compile-time check on F_printk()

Make sure F_printk() has corrent format and args, and make sure
changes in F_STRUCT() won't break F_printk().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4AADF6CC.1060809@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>


---
 kernel/trace/trace_export.c |   45 +++++++++++++++++++++++++++++++++++++++---
 1 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 4cb29d8..2435d55 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -23,6 +23,47 @@
 #define __field_struct(type, item)
 
 #undef __field
+#define __field(type, item)				type item;
+
+#undef __field_desc
+#define __field_desc(type, container, item)		type item;
+
+#undef __array
+#define __array(type, item, size)			type item[size];
+
+#undef __array_desc
+#define __array_desc(type, container, item, size)	type item[size];
+
+#undef __dynamic_array
+#define __dynamic_array(type, item)			type item[];
+
+#undef F_STRUCT
+#define F_STRUCT(args...)				args
+
+#undef F_printk
+#define F_printk(fmt, args...) fmt, args
+
+#undef FTRACE_ENTRY
+#define FTRACE_ENTRY(name, struct_name, id, tstruct, print)	\
+struct ____ftrace_##name {					\
+	tstruct							\
+};								\
+static void __used ____ftrace_check_##name(void)		\
+{								\
+	struct ____ftrace_##name *__entry = NULL;		\
+								\
+	/* force cmpile-time check on F_printk() */		\
+	printk(print);						\
+}
+
+#undef FTRACE_ENTRY_DUP
+#define FTRACE_ENTRY_DUP(name, struct_name, id, tstruct, print)	\
+	FTRACE_ENTRY(name, struct_name, id, PARAMS(tstruct), PARAMS(print))
+
+#include "trace_entries.h"
+
+
+#undef __field
 #define __field(type, item)						\
 	ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t"	\
 			       "offset:%zu;\tsize:%zu;\n",		\
@@ -88,10 +129,6 @@ ftrace_format_##name(struct ftrace_event_call *unused,			\
 	return ret;							\
 }
 
-#undef FTRACE_ENTRY_DUP
-#define FTRACE_ENTRY_DUP(name, struct_name, id, tstruct, print)	\
-	FTRACE_ENTRY(name, struct_name, id, PARAMS(tstruct), PARAMS(print))
-
 #include "trace_entries.h"
 
 

[tip:tracing/core] tracing: remove some unused macros

[tip-bot for Li Zefan]

Commit-ID:  20a58a77231c5f5f61470932503b889303e8d4f3
Gitweb:     http://git.kernel.org/tip/20a58a77231c5f5f61470932503b889303e8d4f3
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Mon, 14 Sep 2009 15:55:18 +0800
Committer:  Steven Rostedt <rostedt@goodmis.org>
CommitDate: Mon, 14 Sep 2009 11:43:24 -0400

tracing: remove some unused macros

- remove FTRACE_ENTRY_STRUCT_ONLY()
- remove TRACE_XXX() macros

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4AADF6E6.3080606@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>


---
 kernel/trace/trace_entries.h |    9 ---------
 kernel/trace/trace_export.c  |   26 --------------------------
 2 files changed, 0 insertions(+), 35 deletions(-)

diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index 0c10095..a431748 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -116,15 +116,6 @@ FTRACE_ENTRY(funcgraph_exit, ftrace_graph_ret_entry,
 	__field(	unsigned char,	next_state	)	\
 	__field(	unsigned int,	next_cpu	)
 
-#if 0
-FTRACE_ENTRY_STRUCT_ONLY(ctx_switch_entry,
-
-	F_STRUCT(
-		FTRACE_CTX_FIELDS
-	)
-);
-#endif
-
 FTRACE_ENTRY(context_switch, ctx_switch_entry,
 
 	TRACE_CTX,
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 2435d55..9753fcc 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -209,32 +209,6 @@ ftrace_define_fields_##name(struct ftrace_event_call *event_call)	\
 #undef __dynamic_array
 #define __dynamic_array(type, item)
 
-
-#undef TRACE_ZERO_CHAR
-#define TRACE_ZERO_CHAR(arg)
-
-#undef TRACE_FIELD
-#define TRACE_FIELD(type, item, assign)\
-	entry->item = assign;
-
-#undef TRACE_FIELD
-#define TRACE_FIELD(type, item, assign)\
-	entry->item = assign;
-
-#undef TRACE_FIELD_SIGN
-#define TRACE_FIELD_SIGN(type, item, assign, is_signed)	\
-	TRACE_FIELD(type, item, assign)
-
-#undef TP_CMD
-#define TP_CMD(cmd...)	cmd
-
-#undef TRACE_ENTRY
-#define TRACE_ENTRY	entry
-
-#undef TRACE_FIELD_SPECIAL
-#define TRACE_FIELD_SPECIAL(type_item, item, len, cmd)	\
-	cmd;
-
 #undef FTRACE_ENTRY
 #define FTRACE_ENTRY(call, struct_name, type, tstruct, print)		\
 static int ftrace_raw_init_event_##call(void);				\