Messages in this thread | | | Date | Thu, 29 Jun 2023 09:34:50 +0900 | From | Masami Hiramatsu (Google) <> | Subject | Re: [GIT PULL] Probes update for v6.5 |
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Hi Linus,
Oops, I found the subject format was wrong. Let me resend it.
On Wed, 28 Jun 2023 00:58:18 +0900 Masami Hiramatsu (Google) <mhiramat@kernel.org> wrote:
> Hi Linus, > > Probes updates for v6.5: > > - fprobe: Pass return address to the fprobe entry/exit callbacks so that > the callbacks don't need to analyze pt_regs/stack to find the function > return address. > > - kprobe events: cleanup usage of TPARG_FL_FENTRY and TPARG_FL_RETURN > flags so that those are not set at once. > > - fprobe events: > . Add a new fprobe events for tracing arbitrary function entry and > exit as a trace event. > . Add a new tracepoint events for tracing raw tracepoint as a trace > event. This allows user to trace non user-exposed tracepoints. > . Move eprobe's event parser code into probe event common file. > . Introduce BTF (BPF type format) support to kernel probe (kprobe, > fprobe and tracepoint probe) events so that user can specify traced > function arguments by name. This also applies the type of argument > when fetching the argument. > . Introduce '$arg*' wildcard support if BTF is available. This expands > the '$arg*' meta argument to all function argument automatically. > . Check the return value types by BTF. If the function returns 'void', > '$retval' is rejected. > . Add some selftest script for fprobe events, tracepoint events and > BTF support. > . Update documentation about the fprobe events. > . Some fixes for above features, document and selftests. > > - selftests for ftrace (except for new fprobe events): > . Add a test case for multiple consecutive probes in a function which > checks if ftrace based kprobe, optimized kprobe and normal kprobe > can be defined in the same target function. > . Add a test case for optimized probe, which checks whether kprobe > can be optimized or not. > > > Please pull the latest probes-v6.5 tree, which can be found at: > > > git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git > probes-v6.5 > > Tag SHA1: 08bb7e2de7f32619cd100419e719ef96d6cf0aab > Head SHA1: 53431798f4bb60d214ae1ec4a79eefdd414f577b > > > Akanksha J N (2): > selftests/ftrace: Add new test case which adds multiple consecutive probes in a function > selftests/ftrace: Add new test case which checks for optimized probes > > Masami Hiramatsu (Google) (15): > fprobe: Pass return address to the handlers > tracing/probes: Avoid setting TPARG_FL_FENTRY and TPARG_FL_RETURN > tracing/probes: Add fprobe events for tracing function entry and exit. > selftests/ftrace: Add fprobe related testcases > tracing/probes: Add tracepoint support on fprobe_events > tracing/probes: Move event parameter fetching code to common parser > tracing/probes: Support function parameters if BTF is available > tracing/probes: Add $arg* meta argument for all function args > tracing/probes: Add BTF retval type support > selftests/ftrace: Add tracepoint probe test case > selftests/ftrace: Add BTF arguments test cases > Documentation: tracing/probes: Add fprobe event tracing document > tracing/probes: Fix to return NULL and keep using current argc > Documentation: Fix typo of reference file name > tracing/probes: Fix tracepoint event with $arg* to fetch correct argument > > ---- > Documentation/trace/fprobetrace.rst | 188 +++ > Documentation/trace/index.rst | 1 + > Documentation/trace/kprobetrace.rst | 2 + > include/linux/fprobe.h | 11 +- > include/linux/rethook.h | 2 +- > include/linux/trace_events.h | 3 + > include/linux/tracepoint-defs.h | 1 + > include/linux/tracepoint.h | 5 + > kernel/kprobes.c | 1 + > kernel/trace/Kconfig | 26 + > kernel/trace/Makefile | 1 + > kernel/trace/bpf_trace.c | 6 +- > kernel/trace/fprobe.c | 17 +- > kernel/trace/rethook.c | 3 +- > kernel/trace/trace.c | 13 +- > kernel/trace/trace.h Linus, > > Probes updates for v6.5: > > - fprobe: Pass return address to the fprobe entry/exit callbacks so that > the callbacks don't need to analyze pt_regs/stack to find the function > return address. > > - kprobe events: cleanup usage of TPARG_FL_FENTRY and TPARG_FL_RETURN > flags so that those are not set at once. > > - fprobe events: > . Add a new fprobe events for tracing arbitrary function entry and > exit as a trace event. > . Add a new tracepoint events for tracing raw tracepoint as a trace > event. This allows user to trace non user-exposed tracepoints. > . Move eprobe's event parser code into probe event common file. > . Introduce BTF (BPF type format) support to kernel probe (kprobe, > fprobe and tracepoint probe) events so that user can specify traced > function arguments by name. This also applies the type of argument > when fetching the argument. > . Introduce '$arg*' wildcard support if BTF is available. This expands > the '$arg*' meta argument to all function argument automatically. > . Check the return value types by BTF. If the function returns 'void', > '$retval' is rejected. > . Add some selftest script for fprobe events, tracepoint events and > BTF support. > . Update documentation about the fprobe events. > . Some fixes for above features, document and selftests. > > - selftests for ftrace (except for new fprobe events): > . Add a test case for multiple consecutive probes in a function which > checks if ftrace based kprobe, optimized kprobe and normal kprobe > can be defined in the same target function. > . Add a test case for optimized probe, which checks whether kprobe > can be optimized or not. > > > Please pull the latest probes-v6.5 tree, which can be found at: > > > git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git > probes-v6.5 > > Tag SHA1: 08bb7e2de7f32619cd100419e719ef96d6cf0aab > Head SHA1: 53431798f4bb60d214ae1ec4a79eefdd414f577b > > > Akanksha J N (2): > selftests/ftrace: Add new test case which adds multiple consecutive probes in a function > selftests/ftrace: Add new test case which checks for optimized probes > > Masami Hiramatsu (Google) (15): > fprobe: Pass return address to the handlers > tracing/probes: Avoid setting TPARG_FL_FENTRY and TPARG_FL_RETURN > tracing/probes: Add fprobe events for tracing function entry and exit. > selftests/ftrace: Add fprobe related testcases > tracing/probes: Add tracepoint support on fprobe_events > tracing/probes: Move event parameter fetching code to common parser > tracing/probes: Support function parameters if BTF is available > tracing/probes: Add $arg* meta argument for all function args > tracing/probes: Add BTF retval type support > selftests/ftrace: Add tracepoint probe test case > selftests/ftrace: Add BTF arguments test cases > Documentation: tracing/probes: Add fprobe event tracing document > tracing/probes: Fix to return NULL and keep using current argc > Documentation: Fix typo of reference file name > tracing/probes: Fix tracepoint event with $arg* to fetch correct argument > > ---- > Documentation/trace/fprobetrace.rst | 188 +++ > Documentation/trace/index.rst | 1 + > Documentation/trace/kprobetrace.rst | 2 + > include/linux/fprobe.h | 11 +- > include/linux/rethook.h | 2 +- > include/linux/trace_events.h | 3 + > include/linux/tracepoint-defs.h | 1 + > include/linux/tracepoint.h | 5 + > kernel/kprobes.c | 1 + > kernel/trace/Kconfig | 26 + > kernel/trace/Makefile | 1 + > kernel/trace/bpf_trace.c | 6 +- > kernel/trace/fprobe.c | 17 +- > kernel/trace/rethook.c | 3 +- > kernel/trace/trace.c | 13 +- > kernel/trace/trace.h | 11 + > kernel/trace/trace_eprobe.c | 44 +- > kernel/trace/trace_fprobe.c | 1199 ++++++++++++++++++++ > kernel/trace/trace_kprobe.c | 35 +- > kernel/trace/trace_probe.c | 659 +++++++++-- > kernel/trace/trace_probe.h | 49 +- > kernel/trace/trace_uprobe.c | 8 +- > lib/test_fprobe.c | 10 +- > samples/fprobe/fprobe_example.c | 6 +- > .../ftrace/test.d/dynevent/add_remove_btfarg.tc | 58 + > .../ftrace/test.d/dynevent/add_remove_fprobe.tc | 26 + > .../ftrace/test.d/dynevent/add_remove_tprobe.tc | 27 + > .../ftrace/test.d/dynevent/fprobe_syntax_errors.tc | 111 ++ > .../ftrace/test.d/dynevent/tprobe_syntax_errors.tc | 82 ++ > .../ftrace/test.d/kprobe/kprobe_insn_boundary.tc | 19 + > .../ftrace/test.d/kprobe/kprobe_opt_types.tc | 34 + > .../ftrace/test.d/kprobe/kprobe_syntax_errors.tc | 16 +- > 32 files changed, 2510 insertions(+), 164 deletions(-) > create mode 100644 Documentation/trace/fprobetrace.rst > create mode 100644 kernel/trace/trace_fprobe.c > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/tprobe_syntax_errors.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_insn_boundary.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc | 11 + > kernel/trace/trace_eprobe.c | 44 +- > kernel/trace/trace_fprobe.c | 1199 ++++++++++++++++++++ > kernel/trace/trace_kprobe.c | 35 +- > kernel/trace/trace_probe.c | 659 +++++++++-- > kernel/trace/trace_probe.h | 49 +- > kernel/trace/trace_uprobe.c | 8 +- > lib/test_fprobe.c | 10 +- > samples/fprobe/fprobe_example.c | 6 +- > .../ftrace/test.d/dynevent/add_remove_btfarg.tc | 58 + > .../ftrace/test.d/dynevent/add_remove_fprobe.tc | 26 + > .../ftrace/test.d/dynevent/add_remove_tprobe.tc | 27 + > .../ftrace/test.d/dynevent/fprobe_syntax_errors.tc | 111 ++ > .../ftrace/test.d/dynevent/tprobe_syntax_errors.tc | 82 ++ > .../ftrace/test.d/kprobe/kprobe_insn_boundary.tc | 19 + > .../ftrace/test.d/kprobe/kprobe_opt_types.tc | 34 + > .../ftrace/test.d/kprobe/kprobe_syntax_errors.tc | 16 +- > 32 files changed, 2510 insertions(+), 164 deletions(-) > create mode 100644 Documentation/trace/fprobetrace.rst > create mode 100644 kernel/trace/trace_fprobe.c > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/tprobe_syntax_errors.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_insn_boundary.tc > create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc > > -- > Masami Hiramatsu (Google) <mhiramat@kernel.org>
-- Masami Hiramatsu (Google) <mhiramat@kernel.org>
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