| Message ID | 164735281449.1084943.12438881786173547153.stgit@devnote2 (mailing list archive) |
|---|---|
| Headers | show |
| Series | fprobe: Introduce fprobe function entry/exit probe | expand |
On Tue, 15 Mar 2022 23:00:14 +0900 Masami Hiramatsu <mhiramat@kernel.org> wrote: > Hi, > > Here is the 12th version of fprobe. This version fixes a possible gcc-11 issue which > was reported as kretprobes on arm issue, and also I updated the fprobe document. Here is the gcc-11 build issue thread for reference. https://lore.kernel.org/all/202203150516.KTorSVVU-lkp@intel.com/T/#u Thank you, > > The previous version (v11) is here[1]; > > [1] https://lore.kernel.org/all/164701432038.268462.3329725152949938527.stgit@devnote2/T/#u > > This series introduces the fprobe, the function entry/exit probe > with multiple probe point support for x86, arm64 and powerpc64le. > 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 [1/12] is from Jiri's series[2]. > > [2] https://lore.kernel.org/all/20220104080943.113249-1-jolsa@kernel.org/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. > > I forcibly updated my kprobes/fprobe branch, you can pull this series > from: > > https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git kprobes/fprobe > > Thank you, > > --- > > Jiri Olsa (1): > ftrace: Add ftrace_set_filter_ips function > > Masami Hiramatsu (11): > fprobe: Add ftrace based probe APIs > rethook: Add a generic return hook > rethook: x86: Add rethook x86 implementation > arm64: rethook: Add arm64 rethook implementation > powerpc: Add rethook support > ARM: rethook: Add rethook arm 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 > fprobe: Add a selftest for fprobe > > > Documentation/trace/fprobe.rst | 174 +++++++++++++ > 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 | 103 ++++++++ > 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/powerpc/Kconfig | 1 > arch/powerpc/kernel/Makefile | 1 > arch/powerpc/kernel/rethook.c | 72 +++++ > 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 | 119 +++++++++ > include/linux/fprobe.h | 105 ++++++++ > 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 | 332 +++++++++++++++++++++++++ > kernel/trace/ftrace.c | 58 ++++ > kernel/trace/rethook.c | 317 ++++++++++++++++++++++++ > lib/Kconfig.debug | 12 + > lib/Makefile | 2 > lib/test_fprobe.c | 174 +++++++++++++ > samples/Kconfig | 7 + > samples/Makefile | 1 > samples/fprobe/Makefile | 3 > samples/fprobe/fprobe_example.c | 120 +++++++++ > 40 files changed, 1876 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/powerpc/kernel/rethook.c > 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 lib/test_fprobe.c > create mode 100644 samples/fprobe/Makefile > create mode 100644 samples/fprobe/fprobe_example.c > > -- > Masami Hiramatsu (Linaro) <mhiramat@kernel.org>
Hello: This series was applied to bpf/bpf-next.git (master) by Alexei Starovoitov <ast@kernel.org>: On Tue, 15 Mar 2022 23:00:14 +0900 you wrote: > Hi, > > Here is the 12th version of fprobe. This version fixes a possible gcc-11 issue which > was reported as kretprobes on arm issue, and also I updated the fprobe document. > > The previous version (v11) is here[1]; > > [...] Here is the summary with links: - [v12,bpf-next,01/12] ftrace: Add ftrace_set_filter_ips function https://git.kernel.org/bpf/bpf-next/c/4f554e955614 - [v12,bpf-next,02/12] fprobe: Add ftrace based probe APIs https://git.kernel.org/bpf/bpf-next/c/cad9931f64dc - [v12,bpf-next,03/12] rethook: Add a generic return hook https://git.kernel.org/bpf/bpf-next/c/54ecbe6f1ed5 - [v12,bpf-next,04/12] rethook: x86: Add rethook x86 implementation https://git.kernel.org/bpf/bpf-next/c/75caf33eda24 - [v12,bpf-next,05/12] arm64: rethook: Add arm64 rethook implementation https://git.kernel.org/bpf/bpf-next/c/83acdce68949 - [v12,bpf-next,06/12] powerpc: Add rethook support https://git.kernel.org/bpf/bpf-next/c/02752bd99dc2 - [v12,bpf-next,07/12] ARM: rethook: Add rethook arm implementation https://git.kernel.org/bpf/bpf-next/c/515a49173b80 - [v12,bpf-next,08/12] fprobe: Add exit_handler support https://git.kernel.org/bpf/bpf-next/c/5b0ab78998e3 - [v12,bpf-next,09/12] fprobe: Add sample program for fprobe https://git.kernel.org/bpf/bpf-next/c/6ee64cc3020b - [v12,bpf-next,10/12] fprobe: Introduce FPROBE_FL_KPROBE_SHARED flag for fprobe https://git.kernel.org/bpf/bpf-next/c/ab51e15d535e - [v12,bpf-next,11/12] docs: fprobe: Add fprobe description to ftrace-use.rst https://git.kernel.org/bpf/bpf-next/c/aba09b44a985 - [v12,bpf-next,12/12] fprobe: Add a selftest for fprobe https://git.kernel.org/bpf/bpf-next/c/f4616fabab39 You are awesome, thank you!
Hi, Here is the 12th version of fprobe. This version fixes a possible gcc-11 issue which was reported as kretprobes on arm issue, and also I updated the fprobe document. The previous version (v11) is here[1]; [1] https://lore.kernel.org/all/164701432038.268462.3329725152949938527.stgit@devnote2/T/#u This series introduces the fprobe, the function entry/exit probe with multiple probe point support for x86, arm64 and powerpc64le. 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 [1/12] is from Jiri's series[2]. [2] https://lore.kernel.org/all/20220104080943.113249-1-jolsa@kernel.org/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. I forcibly updated my kprobes/fprobe branch, you can pull this series from: https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git kprobes/fprobe Thank you, --- Jiri Olsa (1): ftrace: Add ftrace_set_filter_ips function Masami Hiramatsu (11): fprobe: Add ftrace based probe APIs rethook: Add a generic return hook rethook: x86: Add rethook x86 implementation arm64: rethook: Add arm64 rethook implementation powerpc: Add rethook support ARM: rethook: Add rethook arm 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 fprobe: Add a selftest for fprobe Documentation/trace/fprobe.rst | 174 +++++++++++++ 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 | 103 ++++++++ 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/powerpc/Kconfig | 1 arch/powerpc/kernel/Makefile | 1 arch/powerpc/kernel/rethook.c | 72 +++++ 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 | 119 +++++++++ include/linux/fprobe.h | 105 ++++++++ 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 | 332 +++++++++++++++++++++++++ kernel/trace/ftrace.c | 58 ++++ kernel/trace/rethook.c | 317 ++++++++++++++++++++++++ lib/Kconfig.debug | 12 + lib/Makefile | 2 lib/test_fprobe.c | 174 +++++++++++++ samples/Kconfig | 7 + samples/Makefile | 1 samples/fprobe/Makefile | 3 samples/fprobe/fprobe_example.c | 120 +++++++++ 40 files changed, 1876 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/powerpc/kernel/rethook.c 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 lib/test_fprobe.c create mode 100644 samples/fprobe/Makefile create mode 100644 samples/fprobe/fprobe_example.c -- Masami Hiramatsu (Linaro) <mhiramat@kernel.org>