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Message-ID: <20140814022042.3140.67178.stgit@kbuild-fedora.novalocal> Date: Thu, 14 Aug 2014 02:20:42 +0000 From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: Naohiro Aota <naota@...sp.net>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>, Paul Mackerras <paulus@...ba.org>, Namhyung Kim <namhyung@...nel.org> Subject: [PATCH 8/8] perf test: Use strerror_r instead of strerror Use strerror_r instead of strerror in error messages for thread-safety. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> --- tools/perf/tests/builtin-test.c | 4 +++- tools/perf/tests/mmap-basic.c | 7 ++++--- tools/perf/tests/open-syscall-all-cpus.c | 5 +++-- tools/perf/tests/open-syscall-tp-fields.c | 7 +++++-- tools/perf/tests/open-syscall.c | 3 ++- tools/perf/tests/perf-record.c | 13 +++++++++---- tools/perf/tests/rdpmc.c | 6 ++++-- tools/perf/tests/sw-clock.c | 6 ++++-- tools/perf/tests/task-exit.c | 6 ++++-- 9 files changed, 38 insertions(+), 19 deletions(-) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index c6796d2..9948136 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -185,9 +185,11 @@ static bool perf_test__matches(int curr, int argc, const char *argv[]) static int run_test(struct test *test) { int status, err = -1, child = fork(); + char sbuf[STRERR_BUFSIZE]; if (child < 0) { - pr_err("failed to fork test: %s\n", strerror(errno)); + pr_err("failed to fork test: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); return -1; } diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c index 1422634..9b9622a 100644 --- a/tools/perf/tests/mmap-basic.c +++ b/tools/perf/tests/mmap-basic.c @@ -31,6 +31,7 @@ int test__basic_mmap(void) unsigned int nr_events[nsyscalls], expected_nr_events[nsyscalls], i, j; struct perf_evsel *evsels[nsyscalls], *evsel; + char sbuf[STRERR_BUFSIZE]; threads = thread_map__new(-1, getpid(), UINT_MAX); if (threads == NULL) { @@ -49,7 +50,7 @@ int test__basic_mmap(void) sched_setaffinity(0, sizeof(cpu_set), &cpu_set); if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) { pr_debug("sched_setaffinity() failed on CPU %d: %s ", - cpus->map[0], strerror(errno)); + cpus->map[0], strerror_r(errno, sbuf, sizeof(sbuf))); goto out_free_cpus; } @@ -79,7 +80,7 @@ int test__basic_mmap(void) if (perf_evsel__open(evsels[i], cpus, threads) < 0) { pr_debug("failed to open counter: %s, " "tweak /proc/sys/kernel/perf_event_paranoid?\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -89,7 +90,7 @@ int test__basic_mmap(void) if (perf_evlist__mmap(evlist, 128, true) < 0) { pr_debug("failed to mmap events: %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } diff --git a/tools/perf/tests/open-syscall-all-cpus.c b/tools/perf/tests/open-syscall-all-cpus.c index 5fecdbd..8fa82d1 100644 --- a/tools/perf/tests/open-syscall-all-cpus.c +++ b/tools/perf/tests/open-syscall-all-cpus.c @@ -12,6 +12,7 @@ int test__open_syscall_event_on_all_cpus(void) unsigned int nr_open_calls = 111, i; cpu_set_t cpu_set; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); + char sbuf[STRERR_BUFSIZE]; if (threads == NULL) { pr_debug("thread_map__new\n"); @@ -35,7 +36,7 @@ int test__open_syscall_event_on_all_cpus(void) if (perf_evsel__open(evsel, cpus, threads) < 0) { pr_debug("failed to open counter: %s, " "tweak /proc/sys/kernel/perf_event_paranoid?\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_evsel_delete; } @@ -56,7 +57,7 @@ int test__open_syscall_event_on_all_cpus(void) if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) { pr_debug("sched_setaffinity() failed on CPU %d: %s ", cpus->map[cpu], - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_close_fd; } for (i = 0; i < ncalls; ++i) { diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c index 0785b64..922bdb6 100644 --- a/tools/perf/tests/open-syscall-tp-fields.c +++ b/tools/perf/tests/open-syscall-tp-fields.c @@ -22,6 +22,7 @@ int test__syscall_open_tp_fields(void) struct perf_evlist *evlist = perf_evlist__new(); struct perf_evsel *evsel; int err = -1, i, nr_events = 0, nr_polls = 0; + char sbuf[STRERR_BUFSIZE]; if (evlist == NULL) { pr_debug("%s: perf_evlist__new\n", __func__); @@ -48,13 +49,15 @@ int test__syscall_open_tp_fields(void) err = perf_evlist__open(evlist); if (err < 0) { - pr_debug("perf_evlist__open: %s\n", strerror(errno)); + pr_debug("perf_evlist__open: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } err = perf_evlist__mmap(evlist, UINT_MAX, false); if (err < 0) { - pr_debug("perf_evlist__mmap: %s\n", strerror(errno)); + pr_debug("perf_evlist__mmap: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } diff --git a/tools/perf/tests/open-syscall.c b/tools/perf/tests/open-syscall.c index c1dc7d2..a33b2da 100644 --- a/tools/perf/tests/open-syscall.c +++ b/tools/perf/tests/open-syscall.c @@ -9,6 +9,7 @@ int test__open_syscall_event(void) struct perf_evsel *evsel; unsigned int nr_open_calls = 111, i; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); + char sbuf[STRERR_BUFSIZE]; if (threads == NULL) { pr_debug("thread_map__new\n"); @@ -24,7 +25,7 @@ int test__open_syscall_event(void) if (perf_evsel__open_per_thread(evsel, threads) < 0) { pr_debug("failed to open counter: %s, " "tweak /proc/sys/kernel/perf_event_paranoid?\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_evsel_delete; } diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index aca1a83..2ce753c 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -59,6 +59,7 @@ int test__PERF_RECORD(void) int err = -1, errs = 0, i, wakeups = 0; u32 cpu; int total_events = 0, nr_events[PERF_RECORD_MAX] = { 0, }; + char sbuf[STRERR_BUFSIZE]; if (evlist == NULL || argv == NULL) { pr_debug("Not enough memory to create evlist\n"); @@ -100,7 +101,8 @@ int test__PERF_RECORD(void) err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask); if (err < 0) { - pr_debug("sched__get_first_possible_cpu: %s\n", strerror(errno)); + pr_debug("sched__get_first_possible_cpu: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -110,7 +112,8 @@ int test__PERF_RECORD(void) * So that we can check perf_sample.cpu on all the samples. */ if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, &cpu_mask) < 0) { - pr_debug("sched_setaffinity: %s\n", strerror(errno)); + pr_debug("sched_setaffinity: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -120,7 +123,8 @@ int test__PERF_RECORD(void) */ err = perf_evlist__open(evlist); if (err < 0) { - pr_debug("perf_evlist__open: %s\n", strerror(errno)); + pr_debug("perf_evlist__open: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -131,7 +135,8 @@ int test__PERF_RECORD(void) */ err = perf_evlist__mmap(evlist, opts.mmap_pages, false); if (err < 0) { - pr_debug("perf_evlist__mmap: %s\n", strerror(errno)); + pr_debug("perf_evlist__mmap: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } diff --git a/tools/perf/tests/rdpmc.c b/tools/perf/tests/rdpmc.c index c04d1f2..d31f2c4 100644 --- a/tools/perf/tests/rdpmc.c +++ b/tools/perf/tests/rdpmc.c @@ -100,6 +100,7 @@ static int __test__rdpmc(void) }; u64 delta_sum = 0; struct sigaction sa; + char sbuf[STRERR_BUFSIZE]; sigfillset(&sa.sa_mask); sa.sa_sigaction = segfault_handler; @@ -109,14 +110,15 @@ static int __test__rdpmc(void) perf_event_open_cloexec_flag()); if (fd < 0) { pr_err("Error: sys_perf_event_open() syscall returned " - "with %d (%s)\n", fd, strerror(errno)); + "with %d (%s)\n", fd, + strerror_r(errno, sbuf, sizeof(sbuf))); return -1; } addr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, 0); if (addr == (void *)(-1)) { pr_err("Error: mmap() syscall returned with (%s)\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_close; } diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c index 983d6b8..1aa21c9 100644 --- a/tools/perf/tests/sw-clock.c +++ b/tools/perf/tests/sw-clock.c @@ -22,6 +22,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id) volatile int tmp = 0; u64 total_periods = 0; int nr_samples = 0; + char sbuf[STRERR_BUFSIZE]; union perf_event *event; struct perf_evsel *evsel; struct perf_evlist *evlist; @@ -62,14 +63,15 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id) err = -errno; pr_debug("Couldn't open evlist: %s\nHint: check %s, using %" PRIu64 " in this test.\n", - strerror(errno), knob, (u64)attr.sample_freq); + strerror_r(errno, sbuf, sizeof(sbuf)), + knob, (u64)attr.sample_freq); goto out_delete_evlist; } err = perf_evlist__mmap(evlist, 128, true); if (err < 0) { pr_debug("failed to mmap event: %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c index 5ff3db3..87522f0 100644 --- a/tools/perf/tests/task-exit.c +++ b/tools/perf/tests/task-exit.c @@ -42,6 +42,7 @@ int test__task_exit(void) .uses_mmap = true, }; const char *argv[] = { "true", NULL }; + char sbuf[STRERR_BUFSIZE]; signal(SIGCHLD, sig_handler); @@ -82,13 +83,14 @@ int test__task_exit(void) err = perf_evlist__open(evlist); if (err < 0) { - pr_debug("Couldn't open the evlist: %s\n", strerror(-err)); + pr_debug("Couldn't open the evlist: %s\n", + strerror_r(-err, sbuf, sizeof(sbuf))); goto out_delete_evlist; } if (perf_evlist__mmap(evlist, 128, true) < 0) { pr_debug("failed to mmap events: %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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