Adding people readable output for callchain debug,
to get following '-v' output:
$ perf record -v -g ls
callchain: type DWARF
callchain: stack dump size 4096
...
Signed-off-by: Jiri Olsa <jo...@redhat.com>
Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Ingo Molnar <mi...@elte.hu>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Andi Kleen <a...@firstfloor.org>
Cc: Adrian Hunter <adrian.hun...@intel.com>
---
tools/perf/builtin-record.c | 4 +++-
tools/perf/perf.h | 3 ++-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 3f7ec8a..679758f 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -741,7 +741,9 @@ int record_parse_callchain(const char *arg, struct
record_opts *opts)
static void callchain_debug(struct record_opts *opts)
{
- pr_debug("callchain: type %d\n", opts->call_graph);
+ static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF" };
+
+ pr_debug("callchain: type %s\n", str[opts->call_graph]);
if (opts->call_graph == CALLCHAIN_DWARF)
pr_debug("callchain: stack dump size %d\n",
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 6dabc15..c30e1ae 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -251,7 +251,8 @@ void pthread__unblock_sigwinch(void);
enum perf_call_graph_mode {
CALLCHAIN_NONE,
CALLCHAIN_FP,
- CALLCHAIN_DWARF
+ CALLCHAIN_DWARF,
+ CALLCHAIN_MAX
};
struct record_opts {
--
1.8.3.1
--
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