linux-kernel - [PATCH 0/3] perf: script: Intro capstone disasm engine to show instruction trace

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Message-ID: <20240116113437.1507537-1-changbin.du@huawei.com>
Date: Tue, 16 Jan 2024 19:34:34 +0800
From: Changbin Du <changbin.du@...wei.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
CC: Mark Rutland <mark.rutland@....com>, Alexander Shishkin
	<alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, Namhyung
 Kim <namhyung@...nel.org>, Ian Rogers <irogers@...gle.com>, Adrian Hunter
	<adrian.hunter@...el.com>, <linux-kernel@...r.kernel.org>,
	<linux-perf-users@...r.kernel.org>, Changbin Du <changbin.du@...wei.com>
Subject: [PATCH 0/3] perf: script: Intro capstone disasm engine to show instruction trace

This series introduces capstone disassembler engine to print instructions of
Intel PT trace, which was printed via the XED tool.

The advantages compared to XED tool:
    * Support arm, arm64, x86-32, x86_64 (more could be supported),
      xed only for x86_64.
    * More friendly to read. Immediate address operands are shown as symbol+offs.

Before:
    $ sudo perf record --event intel_pt//u -- ls
    $ sudo perf script --insn-trace
                perf 17423 [000] 423271.557970005:      7f2d95f16217 __GI___ioctl+0x7 (/lib/x86_64-linux-gnu/libc-2.27.so) insn: 48 3d 01 f0 ff ff
                perf 17423 [000] 423271.557970005:      7f2d95f1621d __GI___ioctl+0xd (/lib/x86_64-linux-gnu/libc-2.27.so) insn: 73 01
                perf 17423 [000] 423271.557970338:      7f2d95f1621f __GI___ioctl+0xf (/lib/x86_64-linux-gnu/libc-2.27.so) insn: c3
                perf 17423 [000] 423271.557970338:      5593ad3346d7 perf_evsel__enable_cpu+0x97 (/work/linux/tools/perf/perf) insn: 85 c0
                perf 17423 [000] 423271.557970338:      5593ad3346d9 perf_evsel__enable_cpu+0x99 (/work/linux/tools/perf/perf) insn: 75 12
                perf 17423 [000] 423271.557970338:      5593ad3346db perf_evsel__enable_cpu+0x9b (/work/linux/tools/perf/perf) insn: 49 8b 84 24 a8 00 00 00
                perf 17423 [000] 423271.557970338:      5593ad3346e3 perf_evsel__enable_cpu+0xa3 (/work/linux/tools/perf/perf) insn: 48 8b 50 20

After:
    $ sudo perf script --insn-trace
                perf 17423 [000] 423271.557970005:      7f2d95f16217 __GI___ioctl+0x7 (/lib/x86_64-linux-gnu/libc-2.27.so) insn: cmpq $-0xfff, %rax
                perf 17423 [000] 423271.557970005:      7f2d95f1621d __GI___ioctl+0xd (/lib/x86_64-linux-gnu/libc-2.27.so) insn: jae __GI___ioctl+0x10
                perf 17423 [000] 423271.557970338:      7f2d95f1621f __GI___ioctl+0xf (/lib/x86_64-linux-gnu/libc-2.27.so) insn: retq
                perf 17423 [000] 423271.557970338:      5593ad3346d7 perf_evsel__enable_cpu+0x97 (/work/linux/tools/perf/perf) insn: testl %eax, %eax
                perf 17423 [000] 423271.557970338:      5593ad3346d9 perf_evsel__enable_cpu+0x99 (/work/linux/tools/perf/perf) insn: jne perf_evsel__enable_cpu+0xad
                perf 17423 [000] 423271.557970338:      5593ad3346db perf_evsel__enable_cpu+0x9b (/work/linux/tools/perf/perf) insn: movq 0xa8(%r12), %rax
                perf 17423 [000] 423271.557970338:      5593ad3346e3 perf_evsel__enable_cpu+0xa3 (/work/linux/tools/perf/perf) insn: movq 0x20(%rax), %rdx
                perf 17423 [000] 423271.557970338:      5593ad3346e7 perf_evsel__enable_cpu+0xa7 (/work/linux/tools/perf/perf) insn: cmpl %edx, %ebx
                perf 17423 [000] 423271.557970338:      5593ad3346e9 perf_evsel__enable_cpu+0xa9 (/work/linux/tools/perf/perf) insn: jl perf_evsel__enable_cpu+0x60
                perf 17423 [000] 423271.557970338:      5593ad3346eb perf_evsel__enable_cpu+0xab (/work/linux/tools/perf/perf) insn: xorl %eax, %eax


Changbin Du (3):
  perf: build: introduce the libcapstone
  perf: script: use capstone disasm engine to show assembly instructions
  perf: script: deprecate the '--xed' option

 tools/build/Makefile.feature               |   2 +
 tools/build/feature/Makefile               |   4 +
 tools/build/feature/test-all.c             |   4 +
 tools/build/feature/test-libcapstone.c     |  11 ++
 tools/perf/Documentation/build-xed.txt     |  19 ----
 tools/perf/Documentation/perf-intel-pt.txt |  17 +--
 tools/perf/Documentation/perf-script.txt   |   5 +-
 tools/perf/Documentation/tips.txt          |   2 +-
 tools/perf/Makefile.config                 |  21 ++++
 tools/perf/Makefile.perf                   |   3 +
 tools/perf/builtin-script.c                |  15 +--
 tools/perf/ui/browsers/res_sample.c        |   2 +-
 tools/perf/ui/browsers/scripts.c           |   4 +-
 tools/perf/util/Build                      |   1 +
 tools/perf/util/print_insn.c               | 118 +++++++++++++++++++++
 tools/perf/util/print_insn.h               |  14 +++
 16 files changed, 194 insertions(+), 48 deletions(-)
 create mode 100644 tools/build/feature/test-libcapstone.c
 delete mode 100644 tools/perf/Documentation/build-xed.txt
 create mode 100644 tools/perf/util/print_insn.c
 create mode 100644 tools/perf/util/print_insn.h

-- 
2.25.1