Commit-ID: 07c1a0dadfce976e9877c55ce5212dd14753c91d
Gitweb: http://git.kernel.org/tip/07c1a0dadfce976e9877c55ce5212dd14753c91d
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 24 Feb 2015 15:34:23 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 24 Feb 2015 15:34:23 -0300
perf tools: Introduce dump_stack signal helper
To use in stdio based tools, like 'trace'.
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-79kjmerlw6d88csyx1afzwvn@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/util.c | 7 +++++++
tools/perf/util/util.h | 1 +
2 files changed, 8 insertions(+)
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;
--
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