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perf annotate stdio2: Print more descriptive event information header 

To match the recently added event header information to --tui, e.g.:

  # perf annotate --ignore-vmlinux --stdio2 _raw_spin_lock_irqsave
  Samples: 128  of event 'cycles:ppp', 4000 Hz, Event count (approx.): 48617682
  _raw_spin_lock_irqsave() /proc/kcore
    0.78        nop
    7.03        push   %rbx
    3.12        pushfq
    6.25        pop    %rax
                nop
                mov    %rax,%rbx
    3.12        cli
                nop
                xor    %eax,%eax
                mov    $0x1,%edx
   79.69        lock   cmpxchg %edx,(%rdi)
                test   %eax,%eax
              ↓ jne    2b
                mov    %rbx,%rax
                pop    %rbx
              ← retq
          2b:   mov    %eax,%esi
              → callq  *ffffffffb30eaed0
                mov    %rbx,%rax
                pop    %rbx
              ← retq
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ujy46x7cldyhyxelyf2b9quy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-04-02 16:42:01 -03:00
parent 6920e2854e
commit 520d3f01ea
1 changed files with 3 additions and 7 deletions
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10
tools/perf/util/annotate.c
View File

@ -2325,7 +2325,7 @@ 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);
struct annotation *notes = symbol__annotation(sym);
char buf[1024];
if (symbol__annotate2(sym, map, evsel, &opts, NULL) < 0)
@ -2337,12 +2337,8 @@ 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);
annotation__scnprintf_samples_period(notes, buf, sizeof(buf), evsel);
fprintf(stdout, "%s\n%s() %s\n", buf, sym->name, dso->long_name);
symbol__annotate_fprintf2(sym, stdout);
annotated_source__purge(symbol__annotation(sym)->src);