diff options
| -rw-r--r-- | tools/perf/tests/sigtrap.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/tools/perf/tests/sigtrap.c b/tools/perf/tests/sigtrap.c index de409f21f952..1004bf0e7cc9 100644 --- a/tools/perf/tests/sigtrap.c +++ b/tools/perf/tests/sigtrap.c @@ -5,9 +5,11 @@ * Copyright (C) 2021, Google LLC. */ +#include <errno.h> #include <stdint.h> #include <stdlib.h> #include <linux/hw_breakpoint.h> +#include <linux/string.h> #include <pthread.h> #include <signal.h> #include <sys/ioctl.h> @@ -117,6 +119,7 @@ static int test__sigtrap(struct test_suite *test __maybe_unused, int subtest __m struct sigaction oldact; pthread_t threads[NUM_THREADS]; pthread_barrier_t barrier; + char sbuf[STRERR_BUFSIZE]; int i, fd, ret = TEST_FAIL; pthread_barrier_init(&barrier, NULL, NUM_THREADS + 1); @@ -125,19 +128,19 @@ static int test__sigtrap(struct test_suite *test __maybe_unused, int subtest __m action.sa_sigaction = sigtrap_handler; sigemptyset(&action.sa_mask); if (sigaction(SIGTRAP, &action, &oldact)) { - pr_debug("FAILED sigaction()\n"); + pr_debug("FAILED sigaction(): %s\n", str_error_r(errno, sbuf, sizeof(sbuf))); goto out; } fd = sys_perf_event_open(&attr, 0, -1, -1, perf_event_open_cloexec_flag()); if (fd < 0) { - pr_debug("FAILED sys_perf_event_open()\n"); + pr_debug("FAILED sys_perf_event_open(): %s\n", str_error_r(errno, sbuf, sizeof(sbuf))); goto out_restore_sigaction; } for (i = 0; i < NUM_THREADS; i++) { if (pthread_create(&threads[i], NULL, test_thread, &barrier)) { - pr_debug("FAILED pthread_create()"); + pr_debug("FAILED pthread_create(): %s\n", str_error_r(errno, sbuf, sizeof(sbuf))); goto out_close_perf_event; } } |