Commit-ID: 7ebaf4890f63eb90856b76864a0847413cdf6c86
Gitweb: https://git.kernel.org/tip/7ebaf4890f63eb90856b76864a0847413cdf6c86
Author: Jin Yao <yao....@linux.intel.com>
AuthorDate: Mon, 21 May 2018 22:57:46 +0800
Committer: Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Mon, 21 May 2018 14:41:25 -0300
perf annotate: Support '--group' option
With the '--group' option, even for non-explicit group, 'perf annotate'
will enable the group output.
For example,
$ perf record -e cycles,branches ./div
$ perf annotate main --stdio --group
: Disassembly of section .text:
:
: 00000000004004b0 <main>:
: main():
:
: return i;
: }
:
: int main(void)
: {
0.00 0.00 : 4004b0: push %rbx
: int i;
: int flag;
: volatile double x = 1212121212, y =
121212;
:
: s_randseed = time(0);
0.00 0.00 : 4004b1: xor %edi,%edi
: srand(s_randseed);
0.00 0.00 : 4004b3: mov $0x77359400,%ebx
:
: return i;
: }
:
But if without --group, there is only one event reported.
$ perf annotate main --stdio
: Disassembly of section .text:
:
: 00000000004004b0 <main>:
: main():
:
: return i;
: }
:
: int main(void)
: {
0.00 : 4004b0: push %rbx
: int i;
: int flag;
: volatile double x = 1212121212, y = 121212;
:
: s_randseed = time(0);
0.00 : 4004b1: xor %edi,%edi
: srand(s_randseed);
0.00 : 4004b3: mov $0x77359400,%ebx
:
: return i;
: }
Signed-off-by: Jin Yao <yao....@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Kan Liang <kan.li...@linux.intel.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Link:
http://lkml.kernel.org/r/1526914666-31839-4-git-send-email-yao....@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
tools/perf/builtin-annotate.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 6e5d9f718154..da5704240239 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -45,6 +45,7 @@ struct perf_annotate {
bool print_line;
bool skip_missing;
bool has_br_stack;
+ bool group_set;
const char *sym_hist_filter;
const char *cpu_list;
DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
@@ -508,6 +509,9 @@ int cmd_annotate(int argc, const char **argv)
"Don't shorten the displayed pathnames"),
OPT_BOOLEAN(0, "skip-missing", &annotate.skip_missing,
"Skip symbols that cannot be annotated"),
+ OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group,
+ &annotate.group_set,
+ "Show event group information together"),
OPT_STRING('C', "cpu", &annotate.cpu_list, "cpu", "list of cpus to
profile"),
OPT_CALLBACK(0, "symfs", NULL, "directory",
"Look for files with symbols relative to this directory",
@@ -570,6 +574,9 @@ int cmd_annotate(int argc, const char **argv)
annotate.has_br_stack = perf_header__has_feat(&annotate.session->header,
HEADER_BRANCH_STACK);
+ if (annotate.group_set)
+ perf_evlist__force_leader(annotate.session->evlist);
+
ret = symbol__annotation_init();
if (ret < 0)
goto out_delete;
