On Mon, Jan 31, 2022 at 06:36:42PM +0900, Masami Hiramatsu wrote: > Hi Jiri, > > On Mon, 31 Jan 2022 14:00:24 +0900 > Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > > > Hi, > > > > Here is the 7th version of fprobe. This version fixes unregister_fprobe() > > ensures that exit_handler is not called after returning from the > > unregister_fprobe(), and fixes some comments and documents. > > > > The previous version is here[1]; > > > > [1] https://lore.kernel.org/all/164338031590.2429999.6203979005944292576.stgit@devnote2/T/#u > > > > This series introduces the fprobe, the function entry/exit probe > > with multiple probe point support. This also introduces the rethook > > for hooking function return as same as the kretprobe does. This > > abstraction will help us to generalize the fgraph tracer, > > because we can just switch to it from the rethook in fprobe, > > depending on the kernel configuration. > > > > The patch [1/10] is from Jiri's series[2]. > > > > [2] https://lore.kernel.org/all/20220104080943.113249-1-jolsa@xxxxxxxxxx/T/#u > > > > And the patch [9/10] adds the FPROBE_FL_KPROBE_SHARED flag for the case > > if user wants to share the same code (or share a same resource) on the > > fprobe and the kprobes. > > If you want to work on this series, I pushed my working branch on here; > > https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git/ kprobes/fprobe great, I was going to ask for that ;-) thanks jirka > > Thank you, > > > > > Thank you, > > > > --- > > > > Jiri Olsa (1): > > ftrace: Add ftrace_set_filter_ips function > > > > Masami Hiramatsu (9): > > fprobe: Add ftrace based probe APIs > > rethook: Add a generic return hook > > rethook: x86: Add rethook x86 implementation > > ARM: rethook: Add rethook arm implementation > > arm64: rethook: Add arm64 rethook implementation > > fprobe: Add exit_handler support > > fprobe: Add sample program for fprobe > > fprobe: Introduce FPROBE_FL_KPROBE_SHARED flag for fprobe > > docs: fprobe: Add fprobe description to ftrace-use.rst > > > > > > Documentation/trace/fprobe.rst | 171 +++++++++++++ > > Documentation/trace/index.rst | 1 > > arch/arm/Kconfig | 1 > > arch/arm/include/asm/stacktrace.h | 4 > > arch/arm/kernel/stacktrace.c | 6 > > arch/arm/probes/Makefile | 1 > > arch/arm/probes/rethook.c | 71 +++++ > > arch/arm64/Kconfig | 1 > > arch/arm64/include/asm/stacktrace.h | 2 > > arch/arm64/kernel/probes/Makefile | 1 > > arch/arm64/kernel/probes/rethook.c | 25 ++ > > arch/arm64/kernel/probes/rethook_trampoline.S | 87 ++++++ > > arch/arm64/kernel/stacktrace.c | 7 - > > arch/x86/Kconfig | 1 > > arch/x86/include/asm/unwind.h | 8 + > > arch/x86/kernel/Makefile | 1 > > arch/x86/kernel/kprobes/common.h | 1 > > arch/x86/kernel/rethook.c | 115 ++++++++ > > include/linux/fprobe.h | 97 +++++++ > > include/linux/ftrace.h | 3 > > include/linux/kprobes.h | 3 > > include/linux/rethook.h | 100 +++++++ > > include/linux/sched.h | 3 > > kernel/exit.c | 2 > > kernel/fork.c | 3 > > kernel/trace/Kconfig | 26 ++ > > kernel/trace/Makefile | 2 > > kernel/trace/fprobe.c | 341 +++++++++++++++++++++++++ > > kernel/trace/ftrace.c | 58 ++++ > > kernel/trace/rethook.c | 313 +++++++++++++++++++++++ > > samples/Kconfig | 7 + > > samples/Makefile | 1 > > samples/fprobe/Makefile | 3 > > samples/fprobe/fprobe_example.c | 120 +++++++++ > > 34 files changed, 1572 insertions(+), 14 deletions(-) > > create mode 100644 Documentation/trace/fprobe.rst > > create mode 100644 arch/arm/probes/rethook.c > > create mode 100644 arch/arm64/kernel/probes/rethook.c > > create mode 100644 arch/arm64/kernel/probes/rethook_trampoline.S > > create mode 100644 arch/x86/kernel/rethook.c > > create mode 100644 include/linux/fprobe.h > > create mode 100644 include/linux/rethook.h > > create mode 100644 kernel/trace/fprobe.c > > create mode 100644 kernel/trace/rethook.c > > create mode 100644 samples/fprobe/Makefile > > create mode 100644 samples/fprobe/fprobe_example.c > > > > -- > > Masami Hiramatsu (Linaro) <mhiramat@xxxxxxxxxx> > > > -- > Masami Hiramatsu <mhiramat@xxxxxxxxxx> >
