Commit-ID: ee205503f2333d639550eaed37abb455733510a3
Gitweb: http://git.kernel.org/tip/ee205503f2333d639550eaed37abb455733510a3
Author: Adrian Hunter <adrian.hunter@xxxxxxxxx>
AuthorDate: Tue, 11 Nov 2014 12:04:54 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 19 Nov 2014 12:33:47 -0300
perf tools: Fix annotation with kcore
Patch "perf tools: Fix build-id matching on vmlinux" breaks annotation
with kcore. The problem is that symbol__annotate() first gets the
filename based on the build-id which was previously not set.
This patch provides a quick fix, however there should probably be only
one way to determine the filename. e.g. symbol__annotate() should use
the same way as dso__data_fd().
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1415700294-30816-1-git-send-email-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/annotate.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 7dabde1..873c877 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -915,6 +915,8 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
return -ENOMEM;
}
goto fallback;
+ } else if (dso__is_kcore(dso)) {
+ goto fallback;
} else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
strstr(command, "[kernel.kallsyms]") ||
access(symfs_filename, R_OK)) {
--
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