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| author | Chris Phlipot <cphlipot0@gmail.com> | 2016-05-11 03:26:48 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-05-11 15:24:58 (GMT) |
| commit | 7a2544c004a6c576b1e307f30925b165affe6a22 (patch) | |
| tree | 445bc6a4d39a1b305bafe1d5293be3a544f8a99a /tools/perf | |
| parent | bd0a51dd2794f1d17d4e7a34ad66db845cef3e5a (diff) | |
| download | linux-7a2544c004a6c576b1e307f30925b165affe6a22.tar.xz | |
perf script: Fix callchain addresses in db-export
Remove the call to map_ip() to adjust al.addr, because it has already
been called when assembling the callchain, in:
thread__resolve_callchain_sample(perf_sample)
add_callchain_ip(ip = perf_sample->callchain->ips[j])
thread__find_addr_location(addr = ip)
thread__find_addr_map(addr) {
al->addr = addr
if (al->map)
al->addr = al->map->map_ip(al->map, al->addr);
}
Calling it a second time can result in incorrect addresses being used.
This can have effects such as duplicate symbols being created and
exported.
Signed-off-by: Chris Phlipot <cphlipot0@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1462937209-6032-4-git-send-email-cphlipot0@gmail.com
[ Show the callchain where it is done, to help reviewing this change down the line ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/db-export.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c index 2ef1f69..8ca4186 100644 --- a/tools/perf/util/db-export.c +++ b/tools/perf/util/db-export.c @@ -324,10 +324,7 @@ static struct call_path *call_path_from_sample(struct db_export *dbe, al.sym = node->sym; al.map = node->map; al.machine = machine; - if (al.map) - al.addr = al.map->map_ip(al.map, node->ip); - else - al.addr = node->ip; + al.addr = node->ip; db_ids_from_al(dbe, &al, &dso_db_id, &sym_db_id, &offset); |