From 864298f224f20fb7b981b05dd0f77315c75eb189 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 16 Mar 2018 15:17:23 -0300 Subject: [PATCH] perf annotate: Add function header to --stdio2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit # 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 Cc: Andi Kleen Cc: David Ahern Cc: Jin Yao Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-i86yfyzl8m194ioxgj1jo32f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index ea83b9754ab0..7a6a85f9fea6 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -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);