Messages in this thread | | | From | Masami Hiramatsu <> | Subject | [PATCH -tip perf/probes 00/10] x86 insn decoder bugfixes | Date | Tue, 27 Oct 2009 16:41:56 -0400 |
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Hi Ingo,
Here are bugfixes and some enhances of x86-insn decoder and perf-probe. - x86 insn decoder supports AVX and FMA. - perf-probe syntax change. - perf-probe supports function-relative line number. - minor bugfixes.
New perf-probe syntax is below:
perf probe 'PROBE'
or
perf probe --add 'PROBE'
where, PROBE is
<source>:<line-number>
or
<function>[:<rel-lineno>|+<byte-offset>|%return][@<source>]
e.g.
perf probe 'schedule:10@kernel/sched.c'
puts a probe at 10th line from entry line of schedule() function in kernel/sched.c." and
perf probe 'vmalloc%return'
puts a return probe at the returning of vmalloc.
TODO: - Support --line option to show which lines user can probe. - Support lazy string matching.
Thank you,
---
Masami Hiramatsu (10): perf/probes: Support function entry relative line number perf/probes: Change probepoint syntax of perf-probe perf/probes: Change command-line option of perf-probe perf/probes: Exit searching after finding target function kprobe-tracer: Compare both of event-name and event-group to find probe x86: Add Intel FMA instructions to x86 opcode map x86: AVX instruction set decoder support x86: Add pclmulq to x86 opcode map x86: Merge INAT_REXPFX into INAT_PFX_* x86: Fix SSE opcode map bug
arch/x86/include/asm/inat.h | 68 ++++- arch/x86/include/asm/insn.h | 43 +++ arch/x86/lib/inat.c | 12 + arch/x86/lib/insn.c | 54 ++++ arch/x86/lib/x86-opcode-map.txt | 464 +++++++++++++++++++--------------- arch/x86/tools/gen-insn-attr-x86.awk | 100 +++++-- kernel/trace/trace_kprobe.c | 8 - tools/perf/builtin-probe.c | 201 +++++++++------ tools/perf/util/probe-finder.c | 93 +++++-- tools/perf/util/probe-finder.h | 4 10 files changed, 695 insertions(+), 352 deletions(-)
-- Masami Hiramatsu
Software Engineer Hitachi Computer Products (America), Inc. Software Solutions Division e-mail: mhiramat@redhat.com
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