54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
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// Test that Thread objects are reused.
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// RUN: %clangxx_hwasan -mllvm -hwasan-globals=0 -mllvm -hwasan-instrument-stack=0 %s -o %t && %env_hwasan_opts=verbose_threads=1 %run %t 2>&1 | FileCheck %s
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#include <assert.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sanitizer/hwasan_interface.h>
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pthread_barrier_t bar;
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void *threadfn(void *) {
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pthread_barrier_wait(&bar);
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return nullptr;
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}
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void start_stop_threads() {
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constexpr int N = 2;
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pthread_t threads[N];
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pthread_barrier_init(&bar, nullptr, N + 1);
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for (auto &t : threads)
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pthread_create(&t, nullptr, threadfn, nullptr);
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pthread_barrier_wait(&bar);
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for (auto &t : threads)
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pthread_join(t, nullptr);
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pthread_barrier_destroy(&bar);
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}
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int main() {
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// Cut off initial threads.
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// CHECK: === test start ===
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fprintf(stderr, "=== test start ===\n");
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// CHECK: Creating : T{{[0-9]+}} [[A:0x[0-9a-f]+]] stack:
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// CHECK: Creating : T{{[0-9]+}} [[B:0x[0-9a-f]+]] stack:
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start_stop_threads();
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// CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack:
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// CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack:
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start_stop_threads();
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// CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack:
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// CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack:
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start_stop_threads();
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return 0;
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}
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