Messages in this thread Patch in this message | | | From | Victor Kamensky <> | Subject | [PATCH V3 2/2] perf symbols: debuglink should take symfs option into account | Date | Mon, 26 Jan 2015 22:34:02 -0800 |
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Currently code that tries to read corresponding debug symbol file from .gnu_debuglink section (DSO_BINARY_TYPE__DEBUGLINK) does not take in account symfs option, so filename__read_debuglink function cannot open ELF file, if symfs option is used.
Fix is to add proper handling of symfs as it is done in other places: use __symbol__join_symfs function to get real file name of target ELF file.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Waiman Long <Waiman.Long@hp.com> Cc: David Ahern <dsahern@gmail.com> Acked-and-tested-by: David Ahern <dsahern@gmail.com> --- tools/perf/util/dso.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index 45be944..ca8d8d5 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -45,13 +45,13 @@ int dso__read_binary_type_filename(const struct dso *dso, case DSO_BINARY_TYPE__DEBUGLINK: { char *debuglink; - strncpy(filename, dso->long_name, size); - debuglink = filename + dso->long_name_len; + len = __symbol__join_symfs(filename, size, dso->long_name); + debuglink = filename + len; while (debuglink != filename && *debuglink != '/') debuglink--; if (*debuglink == '/') debuglink++; - ret = filename__read_debuglink(dso->long_name, debuglink, + ret = filename__read_debuglink(filename, debuglink, size - (debuglink - filename)); } break; -- 1.9.3
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