Hi,

This is the 7th version of the fetch-arg improvement series. This includes variable changes on fetcharg framework like,

- Add fetcharg testcases (syntax, argN, symbol, string and array) and probepoint testcase. - Rewrite fetcharg framework with fetch_insn, switch-case based instead of function pointer. - Add "symbol" type support, which shows symbol+offset instead of address value. - Add "$argN" fetcharg, which fetches function parameters. (currently only for x86-64) - Add array type support (including string arrary :) ) , which enables to get fixed length array from probe-events. - Add array type support for perf-probe, so that user can dump partial array entries.

V6 is here: https://lkml.org/lkml/2018/3/17/75

Changes from the v6 are here: [6/16] - Fix to return an error if failed to fetch string and fill zero-length data_loc in error case. [11/16] - Update document for restructured text. [15/16] - Fix README test. [16/16] - Add type-casting description (and note) to documentation.

And rebased on the latest Steve's ftrace/core branch.

Thank you,

---

Masami Hiramatsu (16): tracing: probeevent: Cleanup print argument functions tracing: probeevent: Cleanup argument field definition tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions tracing: probeevent: Introduce new argument fetching code tracing: probeevent: Unify fetch type tables tracing: probeevent: Return consumed bytes of dynamic area tracing: probeevent: Append traceprobe_ for exported function tracing: probeevent: Unify fetch_insn processing common part tracing: probeevent: Add symbol type x86: ptrace: Add function argument access API tracing: probeevent: Add $argN for accessing function args tracing: probeevent: Add array type support selftests: ftrace: Add a testcase for symbol type selftests: ftrace: Add a testcase for $argN with kprobe_event selftests: ftrace: Add a testcase for array type with kprobe_event perf-probe: Add array argument support

Documentation/trace/kprobetrace.rst | 23 + arch/Kconfig | 7 arch/x86/Kconfig | 1 arch/x86/include/asm/ptrace.h | 38 + kernel/trace/trace.c | 9 kernel/trace/trace_kprobe.c | 358 ++++-------- kernel/trace/trace_probe.c | 620 +++++++++----------- kernel/trace/trace_probe.h | 282 +++------ kernel/trace/trace_probe_tmpl.h | 216 +++++++ kernel/trace/trace_uprobe.c | 176 ++---- tools/perf/Documentation/perf-probe.txt | 12 tools/perf/util/probe-event.c | 20 + tools/perf/util/probe-event.h | 2 tools/perf/util/probe-file.c | 5 tools/perf/util/probe-file.h | 1 tools/perf/util/probe-finder.c | 95 ++- .../ftrace/test.d/kprobe/kprobe_args_argN.tc | 25 + .../ftrace/test.d/kprobe/kprobe_args_array.tc | 92 +++ .../ftrace/test.d/kprobe/kprobe_args_symbol.tc | 77 ++ 19 files changed, 1127 insertions(+), 932 deletions(-) create mode 100644 kernel/trace/trace_probe_tmpl.h create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_argN.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_array.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc

-- Masami Hiramatsu (Linaro) mhiramat@kernel.org -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html