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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>
This commit is contained in:
Jiri Olsa 2016-10-10 09:38:02 +02:00 committed by Arnaldo Carvalho de Melo
parent aabae16575
commit 0c2aff4c78
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/header.c
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@ -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);