diff options
| -rw-r--r-- | Documentation/perf_counter/builtin-stat.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/perf_counter/builtin-stat.c b/Documentation/perf_counter/builtin-stat.c index cf575c305a6..03518d75d86 100644 --- a/Documentation/perf_counter/builtin-stat.c +++ b/Documentation/perf_counter/builtin-stat.c @@ -538,8 +538,14 @@ static void process_options(int argc, char **argv) } } +static void skip_signal(int signo) +{ +} + int cmd_stat(int argc, char **argv, const char *prefix) { + sigset_t blocked; + page_size = sysconf(_SC_PAGE_SIZE); process_options(argc, argv); @@ -548,5 +554,15 @@ int cmd_stat(int argc, char **argv, const char *prefix) assert(nr_cpus <= MAX_NR_CPUS); assert(nr_cpus >= 0); + /* + * We dont want to block the signals - that would cause + * child tasks to inherit that and Ctrl-C would not work. + * What we want is for Ctrl-C to work in the exec()-ed + * task, but being ignored by perf stat itself: + */ + signal(SIGINT, skip_signal); + signal(SIGALRM, skip_signal); + signal(SIGABRT, skip_signal); + return do_perfstat(argc, argv); } |