54 lines
1.6 KiB
Plaintext
54 lines
1.6 KiB
Plaintext
// Check that ignore_noninstrumented_modules=1 suppresses races from system libraries on OS X.
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// RUN: %clang_tsan %s -o %t -framework Foundation
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// Check that without the flag, there are false positives.
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// RUN: %env_tsan_opts=ignore_noninstrumented_modules=0 %deflake %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-RACE
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// With ignore_noninstrumented_modules=1, no races are reported.
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// RUN: %env_tsan_opts=ignore_noninstrumented_modules=1 %run %t 2>&1 | FileCheck %s
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// With ignore_noninstrumented_modules=1, races in user's code are still reported.
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// RUN: %env_tsan_opts=ignore_noninstrumented_modules=1 %deflake %run %t race 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-RACE
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#import <Foundation/Foundation.h>
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#import "../test.h"
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char global_buf[64];
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void *Thread1(void *x) {
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barrier_wait(&barrier);
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strcpy(global_buf, "hello world");
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return NULL;
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}
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void *Thread2(void *x) {
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strcpy(global_buf, "world hello");
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barrier_wait(&barrier);
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return NULL;
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}
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int main(int argc, char *argv[]) {
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fprintf(stderr, "Hello world.\n");
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// NSUserDefaults uses XPC which triggers the false positive.
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NSDictionary *d = [[NSUserDefaults standardUserDefaults] dictionaryRepresentation];
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fprintf(stderr, "d = %p\n", d);
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if (argc > 1 && strcmp(argv[1], "race") == 0) {
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barrier_init(&barrier, 2);
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pthread_t t[2];
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pthread_create(&t[0], NULL, Thread1, NULL);
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pthread_create(&t[1], NULL, Thread2, NULL);
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pthread_join(t[0], NULL);
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pthread_join(t[1], NULL);
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}
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fprintf(stderr, "Done.\n");
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}
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// CHECK: Hello world.
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// CHECK-RACE: SUMMARY: ThreadSanitizer: data race
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// CHECK: Done.
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