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 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>
