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author | Dimitry Andric <dim@FreeBSD.org> | 2015-01-07 19:55:37 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2015-01-07 19:55:37 +0000 |
commit | ca9211ecdede9bdedb812b2243a4abdb8dacd1b9 (patch) | |
tree | 9b19e801150082c33e9152275829a6ce90614b55 /test/tsan/signal_sync.cc | |
parent | 8ef50bf3d1c287b5013c3168de77a462dfce3495 (diff) | |
download | src-ca9211ecdede9bdedb812b2243a4abdb8dacd1b9.tar.gz src-ca9211ecdede9bdedb812b2243a4abdb8dacd1b9.zip |
Import compiler-rt trunk r224034.vendor/compiler-rt/compiler-rt-r224034
Notes
Notes:
svn path=/vendor/compiler-rt/dist/; revision=276789
svn path=/vendor/compiler-rt/compiler-rt-r224034/; revision=276790; tag=vendor/compiler-rt/compiler-rt-r224034
Diffstat (limited to 'test/tsan/signal_sync.cc')
-rw-r--r-- | test/tsan/signal_sync.cc | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/test/tsan/signal_sync.cc b/test/tsan/signal_sync.cc new file mode 100644 index 000000000000..15387b754dfb --- /dev/null +++ b/test/tsan/signal_sync.cc @@ -0,0 +1,58 @@ +// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/time.h> +#include <unistd.h> +#include <errno.h> + +volatile int X; + +static void handler(int sig) { + (void)sig; + if (X != 42) + printf("bad"); +} + +static void* thr(void *p) { + for (int i = 0; i != 1000; i++) + usleep(1000); + return 0; +} + +int main() { + const int kThreads = 10; + pthread_t th[kThreads]; + for (int i = 0; i < kThreads; i++) + pthread_create(&th[i], 0, thr, 0); + + X = 42; + + struct sigaction act = {}; + act.sa_handler = &handler; + if (sigaction(SIGPROF, &act, 0)) { + perror("sigaction"); + exit(1); + } + + itimerval t; + t.it_value.tv_sec = 0; + t.it_value.tv_usec = 10; + t.it_interval = t.it_value; + if (setitimer(ITIMER_PROF, &t, 0)) { + perror("setitimer"); + exit(1); + } + + for (int i = 0; i < kThreads; i++) + pthread_join(th[i], 0); + + fprintf(stderr, "DONE\n"); + return 0; +} + +// CHECK-NOT: WARNING: ThreadSanitizer: +// CHECK: DONE +// CHECK-NOT: WARNING: ThreadSanitizer: |