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-rw-r--r--tools/testing/selftests/bpf/test_progs.c39
1 files changed, 22 insertions, 17 deletions
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index ab0f2fed3c58..d4ec9586b98c 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -88,7 +88,9 @@ static void stdio_hijack(char **log_buf, size_t *log_cnt)
#endif
}
-static void stdio_restore_cleanup(void)
+static pthread_mutex_t stdout_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void stdio_restore(void)
{
#ifdef __GLIBC__
if (verbose() && env.worker_id == -1) {
@@ -98,6 +100,8 @@ static void stdio_restore_cleanup(void)
fflush(stdout);
+ pthread_mutex_lock(&stdout_lock);
+
if (env.subtest_state) {
fclose(env.subtest_state->stdout_saved);
env.subtest_state->stdout_saved = NULL;
@@ -106,26 +110,21 @@ static void stdio_restore_cleanup(void)
} else {
fclose(env.test_state->stdout_saved);
env.test_state->stdout_saved = NULL;
+ stdout = env.stdout_saved;
+ stderr = env.stderr_saved;
}
+
+ pthread_mutex_unlock(&stdout_lock);
#endif
}
-static void stdio_restore(void)
+static int traffic_monitor_print_fn(const char *format, va_list args)
{
-#ifdef __GLIBC__
- if (verbose() && env.worker_id == -1) {
- /* nothing to do, output to stdout by default */
- return;
- }
-
- if (stdout == env.stdout_saved)
- return;
-
- stdio_restore_cleanup();
+ pthread_mutex_lock(&stdout_lock);
+ vfprintf(stdout, format, args);
+ pthread_mutex_unlock(&stdout_lock);
- stdout = env.stdout_saved;
- stderr = env.stderr_saved;
-#endif
+ return 0;
}
/* Adapted from perf/util/string.c */
@@ -536,7 +535,8 @@ void test__end_subtest(void)
test_result(subtest_state->error_cnt,
subtest_state->skipped));
- stdio_restore_cleanup();
+ stdio_restore();
+
env.subtest_state = NULL;
}
@@ -1265,7 +1265,10 @@ void crash_handler(int signum)
sz = backtrace(bt, ARRAY_SIZE(bt));
- stdio_restore();
+ fflush(stdout);
+ stdout = env.stdout_saved;
+ stderr = env.stderr_saved;
+
if (env.test) {
env.test_state->error_cnt++;
dump_test_log(env.test, env.test_state, true, false, NULL);
@@ -1957,6 +1960,8 @@ int main(int argc, char **argv)
libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
libbpf_set_print(libbpf_print_fn);
+ traffic_monitor_set_print(traffic_monitor_print_fn);
+
srand(time(NULL));
env.jit_enabled = is_jit_enabled();