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Commit 864298f2 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf annotate: Add function header to --stdio2 

  # perf annotate --stdio2 _raw_spin_lock_irqsave
  _raw_spin_lock_irqsave() /lib/modules/4.16.0-rc4/build/vmlinux
  Event: anon group { cycles, instructions }

    0.00   3.17      → callq  __fentry__
    0.00   7.94        push   %rbx
    7.69  36.51      → callq  __page_file_index
                       mov    %rax,%rbx
    7.69   3.17      → callq  *ffffffff82225cd0
                       xor    %eax,%eax
                       mov    $0x1,%edx
   80.77  49.21        lock   cmpxchg %edx,(%rdi)
                       test   %eax,%eax
                     ↓ jne    2b
    3.85   0.00        mov    %rbx,%rax
                       pop    %rbx
                     ← retq
                 2b:   mov    %eax,%esi
                     → callq  queued_spin_lock_slowpath
                       mov    %rbx,%rax
                       pop    %rbx
                     ← retq
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-i86yfyzl8m194ioxgj1jo32f@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 35632892

tools/perf/util/annotate.c

+8 −0
Original line number Diff line number Diff line
@@ -2244,6 +2244,8 @@ int symbol__tty_annotate2(struct symbol *sym, struct map *map, 
	struct dso *dso = map->dso;

	struct rb_root source_line = RB_ROOT;

	struct annotation_options opts = annotation__default_options;

	const char *ev_name = perf_evsel__name(evsel);

	char buf[1024];



	if (symbol__annotate2(sym, map, evsel, &opts, NULL) < 0)

		return -1;
@@ -2254,6 +2256,12 @@ int symbol__tty_annotate2(struct symbol *sym, struct map *map, 
		print_summary(&source_line, dso->long_name);

	}



	if (perf_evsel__is_group_event(evsel)) {

		perf_evsel__group_desc(evsel, buf, sizeof(buf));

		ev_name = buf;

	}



	fprintf(stdout, "%s() %s\nEvent: %s\n\n", sym->name, dso->long_name, ev_name);

	symbol__annotate_fprintf2(sym, stdout);



	annotated_source__purge(symbol__annotation(sym)->src);