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perf util: Hint missing file when tool tips fail to load

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Besides memory allocation failure, tips.txt may fail to load because the
file is not found (a more likely cause).

Communicate that to the user in tips failure warning.

Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Simon Que <sque@chromium.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20170412064919.92449-5-davidcc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
David Carrillo-Cisneros 2017-04-11 23:49:16 -07:00 committed by Arnaldo Carvalho de Melo
parent 9961aa665b
commit 570eda0321
1 changed files with 2 additions and 1 deletions
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3
tools/perf/util/util.c
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@ -696,7 +696,8 @@ const char *perf_tip(const char *dirpath)
tips = strlist__new("tips.txt", &conf); tips = strlist__new("tips.txt", &conf);
if (tips == NULL) if (tips == NULL)
return errno == ENOENT ? NULL : "Tip: get more memory! ;-p"; return errno == ENOENT ? NULL :
"Tip: check path of tips.txt or get more memory! ;-p";
if (strlist__nr_entries(tips) == 0) if (strlist__nr_entries(tips) == 0)
goto out; goto out;