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1d4d2cceda
Currently, we only print how threads involved in data race are created from their parent threads. Add a runtime flag 'print_full_thread_history' to print thread creation stacks for the threads involved in the data race and their ancestors up to the main thread. Reviewed By: dvyukov Differential Revision: https://reviews.llvm.org/D122131
41 lines
941 B
C++
41 lines
941 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=print_full_thread_history=true %deflake %run %t 2>&1 | FileCheck %s
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#include "test.h"
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int Global;
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void *Thread2(void *x) {
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barrier_wait(&barrier);
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Global++;
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return NULL;
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}
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void *Thread3(void *x) {
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Global--;
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barrier_wait(&barrier);
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return NULL;
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}
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void *Thread1(void *x) {
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pthread_t t[2];
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pthread_create(&t[0], NULL, Thread2, NULL);
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pthread_create(&t[1], NULL, Thread3, NULL);
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pthread_join(t[0], NULL);
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pthread_join(t[1], NULL);
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return NULL;
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}
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int main() {
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barrier_init(&barrier, 2);
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pthread_t t;
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pthread_create(&t, NULL, Thread1, NULL);
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pthread_join(t, NULL);
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return 0;
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK: Thread T2 {{.*}} created by thread T1 at
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// CHECK: Thread T3 {{.*}} created by thread T1 at:
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// CHECK: Thread T1 {{.*}} created by main thread at:
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// CHECK: SUMMARY: ThreadSanitizer: data race{{.*}}
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