Commit-ID:  a601fdff1af20ea0208e918f5e97a247a3c37a40
Gitweb:     http://git.kernel.org/tip/a601fdff1af20ea0208e918f5e97a247a3c37a40
Author:     Jiri Olsa <[email protected]>
AuthorDate: Mon, 3 Feb 2014 12:44:43 +0100
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Tue, 18 Feb 2014 09:34:47 -0300

perf record: Add readable output for callchain debug

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 <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
 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 be9e8bc..7b8f0e6 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -735,7 +735,9 @@ 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 2078f33..6898ad0 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 {
--
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