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perf tools: Use same signal handling strategy as 'record' 

I.e. don't exit with the signal number, instead set the signal handler
to the default one and then raise it again.

Noticed while trying to dump the stack at segfaults in the 'perf test'
forked process used to run each test, that inspects signal info at
each test.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-5x5r176wnoqxi5p6id05wv9w@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2015-12-11 16:43:57 -03:00
parent 0d76ded582
commit 9daddf66a3
1 changed files with 2 additions and 1 deletions
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3
tools/perf/util/util.c
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@ -352,7 +352,8 @@ void sighandler_dump_stack(int sig)
{
psignal(sig, "perf");
dump_stack();
exit(sig);
signal(sig, SIG_DFL);
raise(sig);
}
int parse_nsec_time(const char *str, u64 *ptime)