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@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naohiro Aota <naota@elisp.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20140814022245.3545.91394.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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 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..9b9622a3 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -31,6 +31,7 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 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 @@
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 @@
* 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 @@
*/
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 @@
*/
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 @@
};
u64 delta_sum = 0;
struct sigaction sa;
+ char sbuf[STRERR_BUFSIZE];
sigfillset(&sa.sa_mask);
sa.sa_sigaction = segfault_handler;
@@ -109,14 +110,15 @@
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 @@
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 @@
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 @@
.uses_mmap = true,
};
const char *argv[] = { "true", NULL };
+ char sbuf[STRERR_BUFSIZE];
signal(SIGCHLD, sig_handler);
@@ -82,13 +83,14 @@
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;
}