free_race2.c: New file.

2013-12-12  Max Ostapenko  <m.ostapenko@partner.samsung.com>

	* c-c++-common/tsan/free_race2.c: New file.
	* c-c++-common/tsan/race_on_barrier2.c: Likewise.
	* c-c++-common/tsan/race_on_mutex.c: Likewise.
	* c-c++-common/tsan/race_on_mutex2.c: Likewise.
	* c-c++-common/tsan/simple_race.c: Likewise.
	* c-c++-common/tsan/simple_stack.c: Likewise.
	* g++.dg/tsan/aligned_vs_unaligned_race.C: Likewise. Test applies only on x86_64-linux targets. 
	* g++.dg/tsan/atomic_free.C: Likewise.
	* g++.dg/tsan/atomic_free2.C: Likewise.
	* g++.dg/tsan/benign_race.C: Likewise.
	* g++.dg/tsan/cond_race.C: Likewise.
	* g++.dg/tsan/default_options.C: Likewise.
	* g++.dg/tsan/fd_close_norace.C: Likewise.
	* g++.dg/tsan/fd_close_norace2.C: Likewise.
	* g++-dg/tsan/tsan.exp: Modified to run additional C++ tests.

From-SVN: r205925

gcc/testsuite/ChangeLog

+2013-12-12  Max Ostapenko  <m.ostapenko@partner.samsung.com>
+
+	* c-c++-common/tsan/free_race2.c: New file.
+	* c-c++-common/tsan/race_on_barrier2.c: Likewise.
+	* c-c++-common/tsan/race_on_mutex.c: Likewise.
+	* c-c++-common/tsan/race_on_mutex2.c: Likewise.
+	* c-c++-common/tsan/simple_race.c: Likewise.
+	* c-c++-common/tsan/simple_stack.c: Likewise.
+	* g++.dg/tsan/aligned_vs_unaligned_race.C: Likewise. Test applies only on x86_64-linux targets. 
+	* g++.dg/tsan/atomic_free.C: Likewise.
+	* g++.dg/tsan/atomic_free2.C: Likewise.
+	* g++.dg/tsan/benign_race.C: Likewise.
+	* g++.dg/tsan/cond_race.C: Likewise.
+	* g++.dg/tsan/default_options.C: Likewise.
+	* g++.dg/tsan/fd_close_norace.C: Likewise.
+	* g++.dg/tsan/fd_close_norace2.C: Likewise.
+	* g++-dg/tsan/tsan.exp: Modified to run additional C++ tests.
+
 2013-12-12  Jakub Jelinek  <jakub@redhat.com>
 
 	PR libgomp/59467

gcc/testsuite/c-c++-common/tsan/free_race2.c

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <stdlib.h>
+
+void __attribute__((noinline)) foo(int *mem) {
+  free(mem);
+}
+
+void __attribute__((noinline)) bar(int *mem) {
+  mem[0] = 42;
+}
+
+int main() {
+  int *mem = (int*)malloc(100);
+  foo(mem);
+  bar(mem);
+  return 0;
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: heap-use-after-free.*(\n|\r\n|\r)" } */
+/* { dg-output "  Write of size 4.* by main thread:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 bar.*" } */
+/* { dg-output "    #1 main .*" } */
+/* { dg-output "  Previous write of size 8 at .* by main thread:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 free .*" } */
+/* { dg-output "    #\(1|2\) foo.*(\n|\r\n|\r)" } */
+/* { dg-output "    #\(2|3\) main .*" } */
+

gcc/testsuite/c-c++-common/tsan/race_on_barrier2.c

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
+
+pthread_barrier_t B;
+int Global;
+
+void *Thread1(void *x) {
+  if (pthread_barrier_wait(&B) == PTHREAD_BARRIER_SERIAL_THREAD)
+    pthread_barrier_destroy(&B);
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  if (pthread_barrier_wait(&B) == PTHREAD_BARRIER_SERIAL_THREAD)
+    pthread_barrier_destroy(&B);
+  return NULL;
+}
+
+int main() {
+  pthread_barrier_init(&B, 0, 2);
+  pthread_t t;
+  pthread_create(&t, NULL, Thread1, NULL);
+  Thread2(0);
+  pthread_join(t, NULL);
+  return 0;
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */

gcc/testsuite/c-c++-common/tsan/race_on_mutex.c

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
+
+pthread_mutex_t Mtx;
+int Global;
+
+void *Thread1(void *x) {
+  pthread_mutex_init(&Mtx, 0);
+  pthread_mutex_lock(&Mtx);
+  Global = 42;
+  pthread_mutex_unlock(&Mtx);
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  sleep(1);
+  pthread_mutex_lock(&Mtx);
+  Global = 43;
+  pthread_mutex_unlock(&Mtx);
+  return NULL;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], NULL, Thread1, NULL);
+  pthread_create(&t[1], NULL, Thread2, NULL);
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+  pthread_mutex_destroy(&Mtx);
+  return 0;
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
+/* { dg-output "  Atomic read of size 1 at .* by thread T2:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 pthread_mutex_lock.*" } */
+/* { dg-output "    #1 Thread2.* .*(race_on_mutex.c:22|\\?{2}:0) (.*)" } */
+/* { dg-output "  Previous write of size 1 at .* by thread T1:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 pthread_mutex_init .* (.)*" } */
+/* { dg-output "    #1 Thread1.* .*(race_on_mutex.c:13|\\?{2}:0) .*" } */

gcc/testsuite/c-c++-common/tsan/race_on_mutex2.c

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
+
+void *Thread(void *x) {
+  pthread_mutex_lock((pthread_mutex_t*)x);
+  pthread_mutex_unlock((pthread_mutex_t*)x);
+  return 0;
+}
+
+int main() {
+  pthread_mutex_t Mtx;
+  pthread_mutex_init(&Mtx, 0);
+  pthread_t t;
+  pthread_create(&t, 0, Thread, &Mtx);
+  sleep(1);
+  pthread_mutex_destroy(&Mtx);
+  pthread_join(t, 0);
+  return 0;
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */

gcc/testsuite/c-c++-common/tsan/simple_race.c

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <stdio.h>
+
+int Global;
+
+void *Thread1(void *x) {
+  Global = 42;
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  Global = 43;
+  return NULL;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], NULL, Thread1, NULL);
+  pthread_create(&t[1], NULL, Thread2, NULL);
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+  return 0;
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */

gcc/testsuite/c-c++-common/tsan/simple_stack.c

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int Global;
+
+void __attribute__((noinline)) foo1() {
+  Global = 42;
+}
+
+void __attribute__((noinline)) bar1() {
+  volatile int tmp = 42; (void)tmp;
+  foo1();
+}
+
+void __attribute__((noinline)) foo2() {
+  volatile int v = Global; (void)v;
+}
+
+void __attribute__((noinline)) bar2() {
+  volatile int tmp = 42; (void)tmp;
+  foo2();
+}
+
+void *Thread1(void *x) {
+  sleep(1);
+  bar1();
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  bar2();
+  return NULL;
+}
+
+void StartThread(pthread_t *t, void *(*f)(void*)) {
+  pthread_create(t, NULL, f, NULL);
+}
+
+int main() {
+  pthread_t t[2];
+  StartThread(&t[0], Thread1);
+  StartThread(&t[1], Thread2);
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+  return 0;
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: data race.*" } */
+/* { dg-output "  Write of size 4 at .* by thread T1:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 foo1.* .*(simple_stack.c:11|\\?{2}:0) (.*)" } */
+/* { dg-output "    #1 bar1.* .*(simple_stack.c:16|\\?{2}:0) (.*)" } */
+/* { dg-output "    #2 Thread1.* .*(simple_stack.c:30|\\?{2}:0) (.*)" } */
+/* { dg-output "  Previous read of size 4 at .* by thread T2:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 foo2.* .*(simple_stack.c:20|\\?{2}:0) (.*)" } */
+/* { dg-output "    #1 bar2.* .*(simple_stack.c:25|\\?{2}:0) (.*)" } */
+/* { dg-output "    #2 Thread2.* .*(simple_stack.c:35|\\?{2}:0) (.*)" } */
+/* { dg-output "  Thread T1 \\(tid=.*, running\\) created by main thread at:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 pthread_create .* (.*)" } */
+/* { dg-output "    #1 StartThread.* .*(simple_stack.c:40|\\?{2}:0) (.*)" } */
+/* { dg-output "  Thread T2 (.*) created by main thread at:(\n|\r\n|\r)" } */
+/* { dg-output "    #0 pthread_create .* (.*)" } */
+/* { dg-output "    #1 StartThread.* .*(simple_stack.c:40|\\?{2}:0) (.*)" } */

gcc/testsuite/g++.dg/tsan/aligned_vs_unaligned_race.C

+/* { dg-do run { target { x86_64-*-linux* } } } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stdint.h>
+
+uint64_t Global[2];
+
+void *Thread1(void *x) {
+  Global[1]++;
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  char *p1 = reinterpret_cast<char *>(&Global[0]);
+  uint64_t *p4 = reinterpret_cast<uint64_t *>(p1 + 1);
+  (*p4)++;
+  return NULL;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], NULL, Thread1, NULL);
+  pthread_create(&t[1], NULL, Thread2, NULL);
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+  printf("Pass\n");
+  /* { dg-prune-output "ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
+  /* { dg-output "Pass.*" } */
+  return 0;
+}

gcc/testsuite/g++.dg/tsan/atomic_free.C

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <unistd.h>
+
+void *Thread(void *a) {
+  __atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST);
+  return 0;
+}
+
+int main() {
+  int *a = new int(0);
+  pthread_t t;
+  pthread_create(&t, 0, Thread, a);
+  sleep(1);
+  delete a;
+  pthread_join(t, 0);
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */

gcc/testsuite/g++.dg/tsan/atomic_free2.C

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <unistd.h>
+
+void *Thread(void *a) {
+  sleep(1);
+  __atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST);
+  return 0;
+}
+
+int main() {
+  int *a = new int(0);
+  pthread_t t;
+  pthread_create(&t, 0, Thread, a);
+  delete a;
+  pthread_join(t, 0);
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: heap-use-after-free.*(\n|\r\n|\r)" } */

gcc/testsuite/g++.dg/tsan/benign_race.C

+/* { dg-do run } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int Global;
+int WTFGlobal;
+
+extern "C" {
+void AnnotateBenignRaceSized(const char *f, int l,
+                             void *mem, unsigned int size, const char *desc);
+void WTFAnnotateBenignRaceSized(const char *f, int l,
+                                void *mem, unsigned int size,
+                                const char *desc);
+}
+
+
+void *Thread(void *x) {
+  Global = 42;
+  WTFGlobal = 142;
+  return 0;
+}
+
+int main() {
+  AnnotateBenignRaceSized(__FILE__, __LINE__,
+                          &Global, sizeof(Global), "Race on Global");
+  WTFAnnotateBenignRaceSized(__FILE__, __LINE__,
+                             &WTFGlobal, sizeof(WTFGlobal),
+                             "Race on WTFGlobal");
+  pthread_t t;
+  pthread_create(&t, 0, Thread, 0);
+  sleep(1);
+  Global = 43;
+  WTFGlobal = 143;
+  pthread_join(t, 0);
+  printf("OK\n");
+}
+
+/* { dg-prune-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */

gcc/testsuite/g++.dg/tsan/cond_race.C

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+/* { dg-output "ThreadSanitizer: data race.*" } */
+/* { dg-output "pthread_cond_signal.*" } */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+struct Ctx {
+  pthread_mutex_t m;
+  pthread_cond_t c;
+  bool done;
+};
+
+void *thr(void *p) {
+  Ctx *c = (Ctx*)p;
+  pthread_mutex_lock(&c->m);
+  c->done = true;
+  pthread_mutex_unlock(&c->m);
+  pthread_cond_signal(&c->c);
+  return 0;
+}
+
+int main() {
+  Ctx *c = new Ctx();
+  pthread_mutex_init(&c->m, 0);
+  pthread_cond_init(&c->c, 0);
+  pthread_t th;
+  pthread_create(&th, 0, thr, c);
+  pthread_mutex_lock(&c->m);
+  while (!c->done)
+    pthread_cond_wait(&c->c, &c->m);
+  pthread_mutex_unlock(&c->m);
+  delete c;
+  pthread_join(th, 0);
+}

gcc/testsuite/g++.dg/tsan/default_options.C

+/* { dg-do run } */
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <stdio.h>
+
+extern "C" const char *__tsan_default_options() {
+  return "report_bugs=0";
+}
+
+int Global;
+
+void *Thread1(void *x) {
+  Global = 42;
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  Global = 43;
+  return NULL;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], NULL, Thread1, NULL);
+  pthread_create(&t[1], NULL, Thread2, NULL);
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+  fprintf(stderr, "DONE\n");
+  return 0;
+}
+
+/* { dg-prune-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
+/* { dg-output "DONE" } */

gcc/testsuite/g++.dg/tsan/fd_close_norace.C

+/* { dg-do run } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+void *Thread1(void *x) {
+  int f = open("/dev/random", O_RDONLY);
+  close(f);
+  return NULL;
+}
+
+void *Thread2(void *x) {
+  sleep(1);
+  int f = open("/dev/random", O_RDONLY);
+  close(f);
+  return NULL;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], NULL, Thread1, NULL);
+  pthread_create(&t[1], NULL, Thread2, NULL);
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+  printf("OK\n");
+}
+
+/* { dg-prune-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */

gcc/testsuite/g++.dg/tsan/fd_close_norace2.C

+/* { dg-do run } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int pipes[2];
+
+void *Thread(void *x) {
+  // wait for shutown signal
+  while (read(pipes[0], &x, 1) != 1) {
+  }
+  close(pipes[0]);
+  close(pipes[1]);
+  return 0;
+}
+
+int main() {
+  if (pipe(pipes))
+    return 1;
+  pthread_t t;
+  pthread_create(&t, 0, Thread, 0);
+  // send shutdown signal
+  while (write(pipes[1], &t, 1) != 1) {
+  }
+  pthread_join(t, 0);
+  printf("OK\n");
+}
+
+/* { dg-prune-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
+/* { dg-output "OK" } */

gcc/testsuite/g++.dg/tsan/tsan.exp

@@ -37,7 +37,7 @@ set-torture-options [list \
 if [tsan_init] {
 
 # Main loop.
-gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.c $srcdir/c-c++-common/tsan/*.c]] ""
+gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.C $srcdir/c-c++-common/tsan/*.c]] ""
 
 }