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@xxxxxxxxxx>
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