Commit-ID: c1c49204b0114daf210c79d66a5980c8e6f8f8fb
Gitweb: https://git.kernel.org/tip/c1c49204b0114daf210c79d66a5980c8e6f8f8fb
Author: Adrian Hunter <adrian.hunter@xxxxxxxxx>
AuthorDate: Fri, 1 Mar 2019 14:29:02 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 1 Mar 2019 14:47:06 -0300
perf auxtrace: Improve address filter error message when there is no DSO
The message does not indicate the possibility that the symbol is not
found because the file does not exist.
Before:
$ perf record -e intel_pt//u --filter 'filter strcmp / strcpy @ foo ' ls
Symbol 'strcmp' not found.
Note that symbols must be functions.
Failed to parse address filter: 'filter strcmp / strcpy @ foo '
Filter format is: filter|start|stop|tracestop <start symbol or address> [/ <end symbol or size>] [@<file name>]
Where multiple filters are separated by space or comma.
After:
$ perf record -e intel_pt//u --filter 'filter strcmp / strcpy @ foo ' ls
File 'foo' not found or has no symbols.
Symbol 'strcmp' not found.
Note that symbols must be functions.
Failed to parse address filter: 'filter strcmp / strcpy @ foo '
Filter format is: filter|start|stop|tracestop <start symbol or address> [/ <end symbol or size>] [@<file name>]
Where multiple filters are separated by space or comma.
Reported-by: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Tested-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-dvngzxd0jkplzw1ary69dilb@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/auxtrace.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 267e54df511b..fb76b6b232d4 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -1918,7 +1918,8 @@ static struct dso *load_dso(const char *name)
if (!map)
return NULL;
- map__load(map);
+ if (map__load(map) < 0)
+ pr_err("File '%s' not found or has no symbols.\n", name);
dso = dso__get(map->dso);
|