diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-24 18:34:23 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-24 18:34:23 (GMT) |
| commit | 07c1a0dadfce976e9877c55ce5212dd14753c91d (patch) | |
| tree | 4c2e688b84fb3bf437a4fe2898ae51494f9cf540 /tools/perf/util | |
| parent | 280836812f5f821d26393268010f211160874810 (diff) | |
| download | linux-07c1a0dadfce976e9877c55ce5212dd14753c91d.tar.xz | |
perf tools: Introduce dump_stack signal helper
To use in stdio based tools, like 'trace'.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-79kjmerlw6d88csyx1afzwvn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/util.c | 7 | ||||
| -rw-r--r-- | tools/perf/util/util.h | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 92db3f1..4ee6d0d 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -269,6 +269,13 @@ void dump_stack(void) void dump_stack(void) {} #endif +void sighandler_dump_stack(int sig) +{ + psignal(sig, "perf"); + dump_stack(); + exit(sig); +} + void get_term_dimensions(struct winsize *ws) { char *s = getenv("LINES"); diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 73c2f8e..fbd598a 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -277,6 +277,7 @@ char *ltrim(char *s); char *rtrim(char *s); void dump_stack(void); +void sighandler_dump_stack(int sig); extern unsigned int page_size; extern int cacheline_size; |