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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-06-01 12:37:05 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-06-01 16:16:11 -0300
commitb5c874f14c5f57cc8654e9184694196c466147bb (patch)
tree91d1a814fb1bf3ccaf68140b45dd18ba4ed5e146
parentc02514850d67be8db6b2b6658cbc23ac1fbf8bc7 (diff)
downloadlinux-2.6.34-ux500-b5c874f14c5f57cc8654e9184694196c466147bb.tar.gz
perf buildid-list: Fix --with-hits event processing
When we use plain 'perf buildid-list' we use only what is in the buildid table in the perf.data header. And those have absolute pathnames because at 'perf record' time we used __perf_session__process_events and that doesn't sets up the path shortening code in map__new() that happens if symbol_conf.full_paths is false, the default. On the other hand, when we use 'perf buildid-list --with-hits' we process all the events using perf_session__process_events, adding entries to the global DSO list _after_ removing the current directory from the DSO name, for presentation purposes. Because of that we end up having two entries in the DSO list when recording events for binaries using relative pathnames. Fix it minimally by setting symbol_conf.full_paths to true when marking the DSOs with hits in 'perf buildid-list --with-hits', as used by 'perf archive' Right fix longer term is to shorten the path only at presentation time. Will be done for 2.6.36. Reported-by: Stephane Eranian <eranian@google.com> Tested-by: Stephane Eranian <eranian@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <20100601183837.GC4093@ghostprotocols.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/builtin-buildid-list.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 44a47e13bd6..99890728409 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -43,8 +43,10 @@ static int __cmd_buildid_list(void)
if (session == NULL)
return -1;
- if (with_hits)
+ if (with_hits) {
+ symbol_conf.full_paths = true;
perf_session__process_events(session, &build_id__mark_dso_hit_ops);
+ }
perf_session__fprintf_dsos_buildid(session, stdout, with_hits);