lkml.org 
[lkml]   [2013]   [Aug]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 11/47] perf evsel: Actually show symbol offset in stack trace when requested
Date
From: David Ahern <dsahern@gmail.com>

Symbol offset is one of the fields that can be requested in perf-script.
Currently you do not get that data when requested. e.g.,

perf script -f comm,tid,pid,time,cpu,sym,symoff,ip
...
gcc 6201/6201 [006] 762250.617897:
ffffffff81090d95 update_curr
ffffffff810911b8 dequeue_entity
ffffffff81091825 dequeue_task_fair
ffffffff81087163 dequeue_task
ffffffff81087c03 deactivate_task
...

With this patch you get the offset:
...
gcc 6201/6201 [006] 762250.617897:
ffffffff81090d95 update_curr+0x1c5
ffffffff810911b8 dequeue_entity+0x28
ffffffff81091825 dequeue_task_fair+0x45
ffffffff81087163 dequeue_task+0x93
ffffffff81087c03 deactivate_task+0x23
...

Signed-off-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1375024474-45726-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/session.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 9247d9c..a0ce5a4 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1519,8 +1519,13 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event,
printf("\t%16" PRIx64, node->ip);
if (print_sym) {
printf(" ");
- symbol__fprintf_symname(node->sym, stdout);
+ if (print_symoffset) {
+ al.addr = node->ip;
+ symbol__fprintf_symname_offs(node->sym, &al, stdout);
+ } else
+ symbol__fprintf_symname(node->sym, stdout);
}
+
if (print_dso) {
printf(" (");
map__fprintf_dsoname(node->map, stdout);
--
1.8.1.4


\
 
 \ /
  Last update: 2013-08-07 23:41    [W:0.191 / U:40.192 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site