Re: [PATCH v7 0/5] perf: script: Intro capstone disasm engine to show instruction trace

[Namhyung Kim]

Hello,

For some reason, I cannot see Changbin's email in my mailbox. :(

On Tue, Feb 6, 2024 at 3:50 AM Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
>
> On 6/02/24 13:29, Changbin Du wrote:
> > 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, s390 (more could be supported),
> >       xed only for x86_64.
> >     * More friendly to read. Immediate address operands are shown as symbol+offs.
> >
> > Display raw instructions:
> >     $ 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
> >
> > Display mnemonic instructions:
> >     $ sudo perf script --insn-trace=disasm
> >                 perf 17423 [000] 423271.557970005:      7f2d95f16217 __GI___ioctl+0x7 (/lib/x86_64-linux-gnu/libc-2.27.so)            cmpq $-0xfff, %rax
> >                 perf 17423 [000] 423271.557970005:      7f2d95f1621d __GI___ioctl+0xd (/lib/x86_64-linux-gnu/libc-2.27.so)            jae __GI___ioctl+0x10
> >                 perf 17423 [000] 423271.557970338:      7f2d95f1621f __GI___ioctl+0xf (/lib/x86_64-linux-gnu/libc-2.27.so)            retq
> >                 perf 17423 [000] 423271.557970338:      5593ad3346d7 perf_evsel__enable_cpu+0x97 (/work/linux/tools/perf/perf)                testl %eax, %eax
> >                 perf 17423 [000] 423271.557970338:      5593ad3346d9 perf_evsel__enable_cpu+0x99 (/work/linux/tools/perf/perf)                jne perf_evsel__enable_cpu+0xad
> >                 perf 17423 [000] 423271.557970338:      5593ad3346db perf_evsel__enable_cpu+0x9b (/work/linux/tools/perf/perf)                movq 0xa8(%r12), %rax
> >                 perf 17423 [000] 423271.557970338:      5593ad3346e3 perf_evsel__enable_cpu+0xa3 (/work/linux/tools/perf/perf)                movq 0x20(%rax), %rdx
> >                 perf 17423 [000] 423271.557970338:      5593ad3346e7 perf_evsel__enable_cpu+0xa7 (/work/linux/tools/perf/perf)                cmpl %edx, %ebx
> >                 perf 17423 [000] 423271.557970338:      5593ad3346e9 perf_evsel__enable_cpu+0xa9 (/work/linux/tools/perf/perf)                jl perf_evsel__enable_cpu+0x60
> >                 perf 17423 [000] 423271.557970338:      5593ad3346eb perf_evsel__enable_cpu+0xab (/work/linux/tools/perf/perf)                xorl %eax, %eax
> >
> > v7:
> >   - remove redundant space for raw instruction.
> >   - rename sample__fprintf_insn() as sample__fprintf_insn_asm() and make it empty if libcapstone is not available.
> > v6:
> >   - make '-F +disasm' fatal if libcapstone is not supported. (Adrian Hunter)
> >   - display with perf version --build-options. (Adrian Hunter)
> >   - exclude libcapstone from make_minimal. (Adrian Hunter)
> > v5:
> >   - fixes and improments suggested by Adrian Hunter
> > v4:
> >   - rename 'insn_disam' to 'disasm' (Adrian Hunter)
> > v3:
> >   - fix s390 detection. (Thomas Richter)
> > v2:
> >   - add a new field 'insn_disam' instead of changing the default output.
> >   - preserve the old --xed option.
> >
> > Changbin Du (5):
> >   perf: build: introduce the libcapstone
> >   perf: util: use capstone disasm engine to show assembly instructions
> >   perf: script: add field 'disasm' to display mnemonic instructions
> >   perf: script: add raw|disasm arguments to --insn-trace option
> >   perf: script: prefer capstone to XED
> >
> >  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/perf-intel-pt.txt |  14 ++-
> >  tools/perf/Documentation/perf-script.txt   |  20 +--
> >  tools/perf/Makefile.config                 |  21 ++++
> >  tools/perf/Makefile.perf                   |   3 +
> >  tools/perf/builtin-script.c                |  45 +++++--
> >  tools/perf/builtin-version.c               |   1 +
> >  tools/perf/tests/make                      |   4 +-
> >  tools/perf/ui/browsers/res_sample.c        |   2 +-
> >  tools/perf/ui/browsers/scripts.c           |   2 +-
> >  tools/perf/util/Build                      |   1 +
> >  tools/perf/util/print_insn.c               | 135 +++++++++++++++++++++
> >  tools/perf/util/print_insn.h               |  16 +++
> >  16 files changed, 258 insertions(+), 27 deletions(-)
> >  create mode 100644 tools/build/feature/test-libcapstone.c
> >  create mode 100644 tools/perf/util/print_insn.c
> >  create mode 100644 tools/perf/util/print_insn.h
> >
>
> For whole patch set:
>
> Reviewed-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>

Anyway, I see a build failure on Fedora 40.

In file included from /usr/include/capstone/capstone.h:325,
                 from util/print_insn.c:29:
/usr/include/capstone/bpf.h:94:14: error: 'bpf_insn' defined as wrong
kind of tag
   94 | typedef enum bpf_insn {
      |              ^~~~~~~~

Thanks,
Namhyung