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authorKrister Johansen <kjlx@templeofstupid.com>2017-07-06 04:48:13 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-07-19 05:14:11 +0300
commitd2396999c998b4e0006aef247e154eff0ed3d8f9 (patch)
tree658c4ed597053aba645ec22926541fb9014b3907 /tools/perf/util/build-id.h
parentf045b8c4b36baddcfbdd4d3d956446e688b0b3cd (diff)
downloadlinux-d2396999c998b4e0006aef247e154eff0ed3d8f9.tar.xz
perf buildid-cache: Cache debuginfo
If a stripped binary is placed in the cache, the user is in a situation where there's a cached elf file present, but it doesn't have any symtab to use for name resolution. Grab the debuginfo for binaries that don't end in .ko. This yields a better chance of resolving symbols from older traces. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1499305693-1599-7-git-send-email-kjlx@templeofstupid.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/build-id.h')
-rw-r--r--tools/perf/util/build-id.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index 23970847d4c4..113dc0615c57 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -17,7 +17,8 @@ int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
char *build_id_cache__kallsyms_path(const char *sbuild_id, char *bf,
size_t size);
-char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size);
+char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
+ bool is_debug);
int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
struct perf_sample *sample, struct perf_evsel *evsel,