perf report: Add --no-demangle option

It's sometimes useful to see undemangled raw symbol name for example
other tools using the perf output to do manipulation of binaries.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Suggested-by: William Cohen <wcohen@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: William Cohen <wcohen@redhat.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=55571
Link: http://lkml.kernel.org/r/1364203098-17741-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 296bd219977a..b5ea26cc7eb1 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -692,6 +692,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
                     "use branch records for histogram filling", parse_branch_mode),
         OPT_STRING(0, "objdump", &objdump_path, "path",
                    "objdump binary to use for disassembly and annotations"),
+        OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
+                    "Disable symbol demangling"),
         OPT_END()
         };