perf header: Display feature name on write failure

Display name of feature instead of just the number
during recording data.

Before:
  failed to write feature 13

Now:
  failed to write feature HEADER_CPU_TOPOLOGY

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-k9d9trozi5kkx737cy8n5xh5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index d6310c6dace5d5f46c33e6f3501a02c95a5bc2b3..d89c9c7ef4e54ba6381c7b63d8db29c87328b3ea 100644 (file)
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2290,7 +2290,7 @@ static int do_write_feat(int fd, struct perf_header *h, int type,
 
                err = feat_ops[type].write(fd, h, evlist);
                if (err < 0) {
-                       pr_debug("failed to write feature %d\n", type);
+                       pr_debug("failed to write feature %s\n", feat_ops[type].name);
 
                        /* undo anything written */
                        lseek(fd, (*p)->offset, SEEK_SET);