* [PATCH 1/6 v2] tracing: Skip printing "OK" if failed to disable event
2012-09-14 3:00 [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Steven Rostedt
@ 2012-09-14 3:00 ` Steven Rostedt
2012-09-14 3:00 ` [PATCH 2/6 v2] trace: Stop compiling in trace_clock unconditionally Steven Rostedt
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Steven Rostedt @ 2012-09-14 3:00 UTC (permalink / raw)
To: linux-kernel; +Cc: Ingo Molnar, Andrew Morton, Frederic Weisbecker, Yuanhan Liu
[-- Attachment #1: Type: text/plain, Size: 971 bytes --]
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
No acutal case found. But logically, we should skip "OK" in case any
error met.
Link: http://lkml.kernel.org/r/1346051625-25231-1-git-send-email-yuanhan.liu@linux.intel.com
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/trace/trace_events.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 6825d83..bbb0e63 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1646,9 +1646,11 @@ static __init void event_trace_self_tests(void)
event_test_stuff();
ret = __ftrace_set_clr_event(NULL, system->name, NULL, 0);
- if (WARN_ON_ONCE(ret))
+ if (WARN_ON_ONCE(ret)) {
pr_warning("error disabling system %s\n",
system->name);
+ continue;
+ }
pr_cont("OK\n");
}
--
1.7.10.4
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^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 2/6 v2] trace: Stop compiling in trace_clock unconditionally
2012-09-14 3:00 [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Steven Rostedt
2012-09-14 3:00 ` [PATCH 1/6 v2] tracing: Skip printing "OK" if failed to disable event Steven Rostedt
@ 2012-09-14 3:00 ` Steven Rostedt
2012-09-14 3:00 ` [PATCH 3/6 v2] ftrace/x86: Adjust x86 regs.ip as like as x86-64 Steven Rostedt
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Steven Rostedt @ 2012-09-14 3:00 UTC (permalink / raw)
To: linux-kernel
Cc: Ingo Molnar, Andrew Morton, Frederic Weisbecker, Ingo Molnar,
Peter Zijlstra, Eric W. Biederman, Al Viro, Josh Triplett
[-- Attachment #1: Type: text/plain, Size: 2667 bytes --]
From: Josh Triplett <josh@joshtriplett.org>
Commit 56449f437 "tracing: make the trace clocks available generally",
in April 2009, made trace_clock available unconditionally, since
CONFIG_X86_DS used it too.
Commit faa4602e47 "x86, perf, bts, mm: Delete the never used BTS-ptrace code",
in March 2010, removed CONFIG_X86_DS, and now only CONFIG_RING_BUFFER (split
out from CONFIG_TRACING for general use) has a dependency on trace_clock. So,
only compile in trace_clock with CONFIG_RING_BUFFER or CONFIG_TRACING
enabled.
Link: http://lkml.kernel.org/r/20120903024513.GA19583@leaf
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/Makefile | 2 +-
kernel/trace/Kconfig | 5 +++++
kernel/trace/Makefile | 6 +-----
3 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/kernel/Makefile b/kernel/Makefile
index c0cc67a..29d993b 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -98,7 +98,7 @@ obj-$(CONFIG_COMPAT_BINFMT_ELF) += elfcore.o
obj-$(CONFIG_BINFMT_ELF_FDPIC) += elfcore.o
obj-$(CONFIG_FUNCTION_TRACER) += trace/
obj-$(CONFIG_TRACING) += trace/
-obj-$(CONFIG_X86_DS) += trace/
+obj-$(CONFIG_TRACE_CLOCK) += trace/
obj-$(CONFIG_RING_BUFFER) += trace/
obj-$(CONFIG_TRACEPOINTS) += trace/
obj-$(CONFIG_IRQ_WORK) += irq_work.o
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 9301a0e..4cea4f4 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -62,8 +62,12 @@ config HAVE_C_RECORDMCOUNT
config TRACER_MAX_TRACE
bool
+config TRACE_CLOCK
+ bool
+
config RING_BUFFER
bool
+ select TRACE_CLOCK
config FTRACE_NMI_ENTER
bool
@@ -114,6 +118,7 @@ config TRACING
select NOP_TRACER
select BINARY_PRINTF
select EVENT_TRACING
+ select TRACE_CLOCK
config GENERIC_TRACER
bool
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index 8370908..d7e2068 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -19,11 +19,7 @@ endif
CFLAGS_trace_events_filter.o := -I$(src)
-#
-# Make the trace clocks available generally: it's infrastructure
-# relied on by ptrace for example:
-#
-obj-y += trace_clock.o
+obj-$(CONFIG_TRACE_CLOCK) += trace_clock.o
obj-$(CONFIG_FUNCTION_TRACER) += libftrace.o
obj-$(CONFIG_RING_BUFFER) += ring_buffer.o
--
1.7.10.4
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^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 3/6 v2] ftrace/x86: Adjust x86 regs.ip as like as x86-64
2012-09-14 3:00 [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Steven Rostedt
2012-09-14 3:00 ` [PATCH 1/6 v2] tracing: Skip printing "OK" if failed to disable event Steven Rostedt
2012-09-14 3:00 ` [PATCH 2/6 v2] trace: Stop compiling in trace_clock unconditionally Steven Rostedt
@ 2012-09-14 3:00 ` Steven Rostedt
2012-09-14 3:00 ` [PATCH 4/6 v2] kprobes/x86: Fix kprobes to collectly handle IP on ftrace Steven Rostedt
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Steven Rostedt @ 2012-09-14 3:00 UTC (permalink / raw)
To: linux-kernel
Cc: Ingo Molnar, Andrew Morton, Frederic Weisbecker, Peter Zijlstra,
Thomas Gleixner, H. Peter Anvin, Masami Hiramatsu
[-- Attachment #1: Type: text/plain, Size: 1856 bytes --]
From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Adjust x86 regs.ip to ip + MCOUNT_INSN_SIZE as like as
on x86-64. This helps us to consolidate codes which use
regs->ip on both of x86/x86-64.
Link: http://lkml.kernel.org/r/20120905143100.10329.60109.stgit@localhost.localdomain
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
arch/x86/kernel/entry_32.S | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 061ac17..f438a44 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1148,7 +1148,6 @@ ENTRY(ftrace_regs_caller)
* ip location, and move flags into the return ip location.
*/
pushl 4(%esp) /* save return ip into ip slot */
- subl $MCOUNT_INSN_SIZE, (%esp) /* Adjust ip */
pushl $0 /* Load 0 into orig_ax */
pushl %gs
@@ -1169,6 +1168,7 @@ ENTRY(ftrace_regs_caller)
movl $__KERNEL_CS,13*4(%esp)
movl 12*4(%esp), %eax /* Load ip (1st parameter) */
+ subl $MCOUNT_INSN_SIZE, %eax /* Adjust ip */
movl 0x4(%ebp), %edx /* Load parent ip (2nd parameter) */
leal function_trace_op, %ecx /* Save ftrace_pos in 3rd parameter */
pushl %esp /* Save pt_regs as 4th parameter */
@@ -1180,7 +1180,6 @@ GLOBAL(ftrace_regs_call)
movl 14*4(%esp), %eax /* Move flags back into cs */
movl %eax, 13*4(%esp) /* Needed to keep addl from modifying flags */
movl 12*4(%esp), %eax /* Get return ip from regs->ip */
- addl $MCOUNT_INSN_SIZE, %eax
movl %eax, 14*4(%esp) /* Put return ip back for ret */
popl %ebx
--
1.7.10.4
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^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 4/6 v2] kprobes/x86: Fix kprobes to collectly handle IP on ftrace
2012-09-14 3:00 [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Steven Rostedt
` (2 preceding siblings ...)
2012-09-14 3:00 ` [PATCH 3/6 v2] ftrace/x86: Adjust x86 regs.ip as like as x86-64 Steven Rostedt
@ 2012-09-14 3:00 ` Steven Rostedt
2012-09-14 3:00 ` [PATCH 5/6 v2] ftrace/x86-64: Allow to change RIP in handlers Steven Rostedt
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Steven Rostedt @ 2012-09-14 3:00 UTC (permalink / raw)
To: linux-kernel
Cc: Ingo Molnar, Andrew Morton, Frederic Weisbecker, Peter Zijlstra,
Thomas Gleixner, H. Peter Anvin, Masami Hiramatsu
[-- Attachment #1: Type: text/plain, Size: 1959 bytes --]
From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Current kprobe_ftrace_handler expects regs->ip == ip, but it is
incorrect (originally on x86-64). Actually, ftrace handler sets
regs->ip = ip + MCOUNT_INSN_SIZE.
kprobe_ftrace_handler must take care for that.
Link: http://lkml.kernel.org/r/20120905143112.10329.72069.stgit@localhost.localdomain
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
arch/x86/kernel/kprobes.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 47ae102..f49f60c 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -1072,7 +1072,8 @@ void __kprobes kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
if (kprobe_running()) {
kprobes_inc_nmissed_count(p);
} else {
- regs->ip += sizeof(kprobe_opcode_t);
+ /* Kprobe handler expects regs->ip = ip + 1 as breakpoint hit */
+ regs->ip = ip + sizeof(kprobe_opcode_t);
__this_cpu_write(current_kprobe, p);
kcb->kprobe_status = KPROBE_HIT_ACTIVE;
@@ -1080,13 +1081,15 @@ void __kprobes kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
p->pre_handler(p, regs);
if (unlikely(p->post_handler)) {
- /* Emulate singlestep as if there is a 5byte nop */
+ /*
+ * Emulate singlestep (and also recover regs->ip)
+ * as if there is a 5byte nop
+ */
regs->ip = ip + MCOUNT_INSN_SIZE;
kcb->kprobe_status = KPROBE_HIT_SSDONE;
p->post_handler(p, regs, 0);
}
__this_cpu_write(current_kprobe, NULL);
- regs->ip = ip; /* Recover for next callback */
}
end:
local_irq_restore(flags);
--
1.7.10.4
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^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 5/6 v2] ftrace/x86-64: Allow to change RIP in handlers
2012-09-14 3:00 [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Steven Rostedt
` (3 preceding siblings ...)
2012-09-14 3:00 ` [PATCH 4/6 v2] kprobes/x86: Fix kprobes to collectly handle IP on ftrace Steven Rostedt
@ 2012-09-14 3:00 ` Steven Rostedt
2012-09-14 3:00 ` [PATCH 6/6 v2] kprobes/x86: Fix to support jprobes on ftrace-based kprobe Steven Rostedt
2012-09-14 11:40 ` [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Ingo Molnar
6 siblings, 0 replies; 8+ messages in thread
From: Steven Rostedt @ 2012-09-14 3:00 UTC (permalink / raw)
To: linux-kernel
Cc: Ingo Molnar, Andrew Morton, Frederic Weisbecker, Peter Zijlstra,
Thomas Gleixner, H. Peter Anvin, Masami Hiramatsu
[-- Attachment #1: Type: text/plain, Size: 1123 bytes --]
From: Steven Rostedt <rostedt@goodmis.org>
Allow ftrace handlers to change RIP register (regs->ip)
in handlers. This will allow handlers to call another
function instead of original function.
Link: http://lkml.kernel.org/r/20120905143118.10329.5078.stgit@localhost.localdomain
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
arch/x86/kernel/entry_64.S | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index ed767b7..e9cc2b3 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -165,6 +165,10 @@ GLOBAL(ftrace_regs_call)
movq EFLAGS(%rsp), %rax
movq %rax, SS(%rsp)
+ /* Handlers can change the RIP */
+ movq RIP(%rsp), %rax
+ movq %rax, SS+8(%rsp)
+
/* restore the rest of pt_regs */
movq R15(%rsp), %r15
movq R14(%rsp), %r14
--
1.7.10.4
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^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 6/6 v2] kprobes/x86: Fix to support jprobes on ftrace-based kprobe
2012-09-14 3:00 [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Steven Rostedt
` (4 preceding siblings ...)
2012-09-14 3:00 ` [PATCH 5/6 v2] ftrace/x86-64: Allow to change RIP in handlers Steven Rostedt
@ 2012-09-14 3:00 ` Steven Rostedt
2012-09-14 11:40 ` [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Ingo Molnar
6 siblings, 0 replies; 8+ messages in thread
From: Steven Rostedt @ 2012-09-14 3:00 UTC (permalink / raw)
To: linux-kernel
Cc: Ingo Molnar, Andrew Morton, Frederic Weisbecker, Fengguang Wu,
Peter Zijlstra, Thomas Gleixner, H. Peter Anvin, Masami Hiramatsu
[-- Attachment #1: Type: text/plain, Size: 4479 bytes --]
From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Fix kprobes/x86 to support jprobes on ftrace-based kprobes.
Because of -mfentry support of ftrace, ftrace is now put
on the beginning of function where jprobes are put.
Originally ftrace-based kprobes doesn't support jprobe
because it will change regs->ip and ftrace doesn't support
changing IP and ftrace itself doesn't conflict jprobe.
However, ftrace -mfentry support moves mcount call on the
top of functions where jprobes are put. This means that
jprobe always conflicts with ftrace-based kprobe and fails.
This patch allows ftrace-based kprobes to support jprobes
by allowing to modify regs->ip and kprobes breakpoint
handler also allows to skip singlestepping because there
is a ftrace call (not an original instruction).
Link: http://lkml.kernel.org/r/20120905143125.10329.90836.stgit@localhost.localdomain
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
arch/x86/kernel/kprobes.c | 42 +++++++++++++++++++++++++++++-------------
kernel/kprobes.c | 3 ---
2 files changed, 29 insertions(+), 16 deletions(-)
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index f49f60c..b7c2a85 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -541,6 +541,8 @@ reenter_kprobe(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb
return 1;
}
+static void __kprobes skip_singlestep(struct kprobe *p, struct pt_regs *regs,
+ struct kprobe_ctlblk *kcb);
/*
* Interrupts are disabled on entry as trap3 is an interrupt gate and they
* remain disabled throughout this function.
@@ -599,6 +601,12 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
} else if (kprobe_running()) {
p = __this_cpu_read(current_kprobe);
if (p->break_handler && p->break_handler(p, regs)) {
+#ifdef KPROBES_CAN_USE_FTRACE
+ if (kprobe_ftrace(p)) {
+ skip_singlestep(p, regs, kcb);
+ return 1;
+ }
+#endif
setup_singlestep(p, regs, kcb, 0);
return 1;
}
@@ -1053,6 +1061,21 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
}
#ifdef KPROBES_CAN_USE_FTRACE
+static void __kprobes skip_singlestep(struct kprobe *p, struct pt_regs *regs,
+ struct kprobe_ctlblk *kcb)
+{
+ /*
+ * Emulate singlestep (and also recover regs->ip)
+ * as if there is a 5byte nop
+ */
+ regs->ip = (unsigned long)p->addr + MCOUNT_INSN_SIZE;
+ if (unlikely(p->post_handler)) {
+ kcb->kprobe_status = KPROBE_HIT_SSDONE;
+ p->post_handler(p, regs, 0);
+ }
+ __this_cpu_write(current_kprobe, NULL);
+}
+
/* Ftrace callback handler for kprobes */
void __kprobes kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *ops, struct pt_regs *regs)
@@ -1077,19 +1100,12 @@ void __kprobes kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
__this_cpu_write(current_kprobe, p);
kcb->kprobe_status = KPROBE_HIT_ACTIVE;
- if (p->pre_handler)
- p->pre_handler(p, regs);
-
- if (unlikely(p->post_handler)) {
- /*
- * Emulate singlestep (and also recover regs->ip)
- * as if there is a 5byte nop
- */
- regs->ip = ip + MCOUNT_INSN_SIZE;
- kcb->kprobe_status = KPROBE_HIT_SSDONE;
- p->post_handler(p, regs, 0);
- }
- __this_cpu_write(current_kprobe, NULL);
+ if (!p->pre_handler || !p->pre_handler(p, regs))
+ skip_singlestep(p, regs, kcb);
+ /*
+ * If pre_handler returns !0, it sets regs->ip and
+ * resets current kprobe.
+ */
}
end:
local_irq_restore(flags);
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 35b4315..098f396 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1418,9 +1418,6 @@ static __kprobes int check_kprobe_address_safe(struct kprobe *p,
/* Given address is not on the instruction boundary */
if ((unsigned long)p->addr != ftrace_addr)
return -EILSEQ;
- /* break_handler (jprobe) can not work with ftrace */
- if (p->break_handler)
- return -EINVAL;
p->flags |= KPROBE_FLAG_FTRACE;
#else /* !KPROBES_CAN_USE_FTRACE */
return -EINVAL;
--
1.7.10.4
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^ permalink raw reply related [flat|nested] 8+ messages in thread* Re: [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes
2012-09-14 3:00 [PATCH 0/6 v2] [GIT PULL][3.7] tracing: cleanups and fixes Steven Rostedt
` (5 preceding siblings ...)
2012-09-14 3:00 ` [PATCH 6/6 v2] kprobes/x86: Fix to support jprobes on ftrace-based kprobe Steven Rostedt
@ 2012-09-14 11:40 ` Ingo Molnar
6 siblings, 0 replies; 8+ messages in thread
From: Ingo Molnar @ 2012-09-14 11:40 UTC (permalink / raw)
To: Steven Rostedt; +Cc: linux-kernel, Andrew Morton, Frederic Weisbecker
* Steven Rostedt <rostedt@goodmis.org> wrote:
> Ingo,
>
> As I believe the -pg removal from perf was holding up the patch
> set, although Frederic and I are working that out, I rebased my
> patch set to remove that change, for a later time.
>
> The rest holds fixes to bugs that are in your queue for 3.7.
>
> Please pull the latest tip/perf/core tree, which can be found at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
> tip/perf/core
>
> Head SHA1: c6aaf4d0bb86e2154ea31a33804cec300611255f
>
>
> Josh Triplett (1):
> trace: Stop compiling in trace_clock unconditionally
>
> Masami Hiramatsu (3):
> ftrace/x86: Adjust x86 regs.ip as like as x86-64
> kprobes/x86: Fix kprobes to collectly handle IP on ftrace
> kprobes/x86: Fix to support jprobes on ftrace-based kprobe
>
> Steven Rostedt (1):
> ftrace/x86-64: Allow to change RIP in handlers
>
> Yuanhan Liu (1):
> tracing: Skip printing "OK" if failed to disable event
>
> ----
> arch/x86/kernel/entry_32.S | 3 +--
> arch/x86/kernel/entry_64.S | 4 ++++
> arch/x86/kernel/kprobes.c | 43 +++++++++++++++++++++++++++++++------------
> kernel/Makefile | 2 +-
> kernel/kprobes.c | 3 ---
> kernel/trace/Kconfig | 5 +++++
> kernel/trace/Makefile | 6 +-----
> kernel/trace/trace_events.c | 4 +++-
> 8 files changed, 46 insertions(+), 24 deletions(-)
Pulled, thanks Steve!
Ingo
^ permalink raw reply [flat|nested] 8+ messages in thread