Re: [PATCH 00/19] [GIT PULL][v3.6] ftrace: Allow kprobes to work with ftace
* Steven Rostedt wrote: > > Ingo, > > This patch series extends ftrace function tracing utility to be > more dynamic for its users. It allows for data passing to the callback > functions, as well as reading regs as if a breakpoint were to trigger > at function entry. > > The main goal of this patch series was to allow kprobes to use ftrace > as an optimized probe point when a probe is placed on an ftrace nop. > With lots of help from Masami Hiramatsu, and going through lots of > iterations, we finally came up with a good solution. > > I've tested it vigorously (although, like always, there may be some > subtle bug), but I feel it is ready for inclussion for the 3.6 merge > window. > > 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: aa5e57294ac5614ac395a9733d3e050eace4764e > > > Masami Hiramatsu (5): > ftrace: add ftrace_set_filter_ip() for address based filter > kprobes: cleanup to separate probe-able check > kprobes: Move locks into appropriate functions > kprobes: introduce ftrace based optimization > kprobes/x86: ftrace based optimization for x86 > > Steven Rostedt (13): > ftrace: Pass ftrace_ops as third parameter to function trace callback > ftrace: Consolidate arch dependent functions with 'list' function > ftrace: Return pt_regs to function trace callback > ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer > ftrace/x86: Add separate function to save regs > ftrace/x86: Add save_regs for i386 function calls > ftrace/x86: Remove function_trace_stop check from graph caller > ftrace: Add default recursion protection for function tracing > ftrace: Only compile ftrace selftest if selftests are enabled > ftrace: Add selftest to test function trace recursion protection > ftrace: Add selftest to test function save-regs support > kprobes: Inverse taking of module_mutex with kprobe_mutex > ftrace: Make ftrace_location() a nop on !DYNAMIC_FTRACE > > Uros Bizjak (1): > ftrace/x86_32: Simplify parameter setup for ftrace_regs_caller > > > arch/x86/include/asm/ftrace.h | 49 +++--- > arch/x86/include/asm/kprobes.h|1 + > arch/x86/kernel/entry_32.S| 75 - > arch/x86/kernel/entry_64.S| 96 +-- > arch/x86/kernel/ftrace.c | 73 - > arch/x86/kernel/kprobes.c | 48 ++ > include/linux/ftrace.h| 158 -- > include/linux/kprobes.h | 27 > kernel/kprobes.c | 250 > kernel/trace/Makefile |2 + > kernel/trace/ftrace.c | 322 > - > kernel/trace/trace.h |2 +- > kernel/trace/trace_event_perf.c |3 +- > kernel/trace/trace_events.c |4 +- > kernel/trace/trace_functions.c| 14 +- > kernel/trace/trace_irqsoff.c |5 +- > kernel/trace/trace_sched_wakeup.c |5 +- > kernel/trace/trace_selftest.c | 277 ++- > kernel/trace/trace_stack.c|4 +- > 19 files changed, 1199 insertions(+), 216 deletions(-) Pulled, thanks a lot Steve! Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 00/19] [GIT PULL][v3.6] ftrace: Allow kprobes to work with ftace
On Tue, 2012-07-31 at 17:12 +0200, Ingo Molnar wrote: > > Can you pull this in for 3.7, or do you want me to post > > another pull request after the merge window closes? > > No need to resend, will pull it once the merge window dust has > settled a bit. Hi Ingo, Just a friendly reminder. Can you pull this into perf/core. Thanks! -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 00/19] [GIT PULL][v3.6] ftrace: Allow kprobes to work with ftace
* Steven Rostedt wrote: > On Fri, 2012-07-20 at 22:19 -0400, Steven Rostedt wrote: > > Ingo, > > > > This patch series extends ftrace function tracing utility to be > > more dynamic for its users. It allows for data passing to the callback > > functions, as well as reading regs as if a breakpoint were to trigger > > at function entry. > > > > The main goal of this patch series was to allow kprobes to use ftrace > > as an optimized probe point when a probe is placed on an ftrace nop. > > With lots of help from Masami Hiramatsu, and going through lots of > > iterations, we finally came up with a good solution. > > > > I've tested it vigorously (although, like always, there may be some > > subtle bug), but I feel it is ready for inclussion for the 3.6 merge > > window. > > As the merge window opened the day after I sent this (which > was also the same day I left for vacation :-p ), I recommend > that this goes in v3.7. Yeah, the timing was a bit unfortunate :-/ > Can you pull this in for 3.7, or do you want me to post > another pull request after the merge window closes? No need to resend, will pull it once the merge window dust has settled a bit. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[GIT PULL][v3.7] (was: Re: [PATCH 00/19] [GIT PULL][v3.6]) ftrace: Allow kprobes to work with ftace
On Mon, 2012-07-30 at 11:51 -0400, Steven Rostedt wrote: > As the merge window opened the day after I sent this (which was also the > same day I left for vacation :-p ), I recommend that this goes in v3.7. > > Can you pull this in for 3.7, or do you want me to post another pull > request after the merge window closes? Hi Ingo, I just rebased the branch to include Masami's reviewed by tag that he posted for Uros Bizjak's patch. No code has changed. 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: e52538965119319447c0800c534da73142c27be2 Masami Hiramatsu (5): ftrace: add ftrace_set_filter_ip() for address based filter kprobes: cleanup to separate probe-able check kprobes: Move locks into appropriate functions kprobes: introduce ftrace based optimization kprobes/x86: ftrace based optimization for x86 Steven Rostedt (13): ftrace: Pass ftrace_ops as third parameter to function trace callback ftrace: Consolidate arch dependent functions with 'list' function ftrace: Return pt_regs to function trace callback ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer ftrace/x86: Add separate function to save regs ftrace/x86: Add save_regs for i386 function calls ftrace/x86: Remove function_trace_stop check from graph caller ftrace: Add default recursion protection for function tracing ftrace: Only compile ftrace selftest if selftests are enabled ftrace: Add selftest to test function trace recursion protection ftrace: Add selftest to test function save-regs support kprobes: Inverse taking of module_mutex with kprobe_mutex ftrace: Make ftrace_location() a nop on !DYNAMIC_FTRACE Uros Bizjak (1): ftrace/x86_32: Simplify parameter setup for ftrace_regs_caller arch/x86/include/asm/ftrace.h | 49 +++--- arch/x86/include/asm/kprobes.h|1 + arch/x86/kernel/entry_32.S| 75 - arch/x86/kernel/entry_64.S| 96 +-- arch/x86/kernel/ftrace.c | 73 - arch/x86/kernel/kprobes.c | 48 ++ include/linux/ftrace.h| 158 -- include/linux/kprobes.h | 27 kernel/kprobes.c | 250 kernel/trace/Makefile |2 + kernel/trace/ftrace.c | 322 - kernel/trace/trace.h |2 +- kernel/trace/trace_event_perf.c |3 +- kernel/trace/trace_events.c |4 +- kernel/trace/trace_functions.c| 14 +- kernel/trace/trace_irqsoff.c |5 +- kernel/trace/trace_sched_wakeup.c |5 +- kernel/trace/trace_selftest.c | 277 ++- kernel/trace/trace_stack.c|4 +- 19 files changed, 1199 insertions(+), 216 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 00/19] [GIT PULL][v3.6] ftrace: Allow kprobes to work with ftace
On Fri, 2012-07-20 at 22:19 -0400, Steven Rostedt wrote: > Ingo, > > This patch series extends ftrace function tracing utility to be > more dynamic for its users. It allows for data passing to the callback > functions, as well as reading regs as if a breakpoint were to trigger > at function entry. > > The main goal of this patch series was to allow kprobes to use ftrace > as an optimized probe point when a probe is placed on an ftrace nop. > With lots of help from Masami Hiramatsu, and going through lots of > iterations, we finally came up with a good solution. > > I've tested it vigorously (although, like always, there may be some > subtle bug), but I feel it is ready for inclussion for the 3.6 merge > window. As the merge window opened the day after I sent this (which was also the same day I left for vacation :-p ), I recommend that this goes in v3.7. Can you pull this in for 3.7, or do you want me to post another pull request after the merge window closes? Thanks, -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH 00/19] [GIT PULL][v3.6] ftrace: Allow kprobes to work with ftace
Ingo, This patch series extends ftrace function tracing utility to be more dynamic for its users. It allows for data passing to the callback functions, as well as reading regs as if a breakpoint were to trigger at function entry. The main goal of this patch series was to allow kprobes to use ftrace as an optimized probe point when a probe is placed on an ftrace nop. With lots of help from Masami Hiramatsu, and going through lots of iterations, we finally came up with a good solution. I've tested it vigorously (although, like always, there may be some subtle bug), but I feel it is ready for inclussion for the 3.6 merge window. 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: aa5e57294ac5614ac395a9733d3e050eace4764e Masami Hiramatsu (5): ftrace: add ftrace_set_filter_ip() for address based filter kprobes: cleanup to separate probe-able check kprobes: Move locks into appropriate functions kprobes: introduce ftrace based optimization kprobes/x86: ftrace based optimization for x86 Steven Rostedt (13): ftrace: Pass ftrace_ops as third parameter to function trace callback ftrace: Consolidate arch dependent functions with 'list' function ftrace: Return pt_regs to function trace callback ftrace/x86_32: Push ftrace_ops in as 3rd parameter to function tracer ftrace/x86: Add separate function to save regs ftrace/x86: Add save_regs for i386 function calls ftrace/x86: Remove function_trace_stop check from graph caller ftrace: Add default recursion protection for function tracing ftrace: Only compile ftrace selftest if selftests are enabled ftrace: Add selftest to test function trace recursion protection ftrace: Add selftest to test function save-regs support kprobes: Inverse taking of module_mutex with kprobe_mutex ftrace: Make ftrace_location() a nop on !DYNAMIC_FTRACE Uros Bizjak (1): ftrace/x86_32: Simplify parameter setup for ftrace_regs_caller arch/x86/include/asm/ftrace.h | 49 +++--- arch/x86/include/asm/kprobes.h|1 + arch/x86/kernel/entry_32.S| 75 - arch/x86/kernel/entry_64.S| 96 +-- arch/x86/kernel/ftrace.c | 73 - arch/x86/kernel/kprobes.c | 48 ++ include/linux/ftrace.h| 158 -- include/linux/kprobes.h | 27 kernel/kprobes.c | 250 kernel/trace/Makefile |2 + kernel/trace/ftrace.c | 322 - kernel/trace/trace.h |2 +- kernel/trace/trace_event_perf.c |3 +- kernel/trace/trace_events.c |4 +- kernel/trace/trace_functions.c| 14 +- kernel/trace/trace_irqsoff.c |5 +- kernel/trace/trace_sched_wakeup.c |5 +- kernel/trace/trace_selftest.c | 277 ++- kernel/trace/trace_stack.c|4 +- 19 files changed, 1199 insertions(+), 216 deletions(-) signature.asc Description: This is a digitally signed message part
