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perf symbols: Fix reading of build-id from vDSO

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We need to use the long name (the filename) when reading the build-id
from a DSO.  Using the short name doesn't work for (at least) vDSOs.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20160113172301.GT28542@decadent.org.uk
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ben Hutchings 2016-01-13 17:23:01 +00:00 committed by Arnaldo Carvalho de Melo
parent 3caeaa5627
commit 40c4a0f92a
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/symbol.c
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@ -1466,7 +1466,7 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter)
* Read the build id if possible. This is required for
* DSO_BINARY_TYPE__BUILDID_DEBUGINFO to work
*/
if (filename__read_build_id(dso->name, build_id, BUILD_ID_SIZE) > 0)
if (filename__read_build_id(dso->long_name, build_id, BUILD_ID_SIZE) > 0)
dso__set_build_id(dso, build_id);
/*