0a3519d5a2
It started to fail in a flaky manner a few days ago on GreenDragon buildbots
(i.e. x86_64-darwin). I didn't track down the root cause but LSan isn't
actually supported on darwin anyway, so UNSUPPORTED seems appropriate.
Prior art: 3ff080b5.
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
// Test handling of arg and retval of child thread.
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// RUN: %clangxx_lsan -pthread %s -o %t
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// RUN: %run not %t 10 1 0 0 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK123
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// RUN: %run not %t 10 0 1 0 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK234
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// RUN: %run not %t 10 0 0 1 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK234
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// RUN: %run %t 10 0 0 0
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// This test appears to be flaky on x86_64-darwin buildbots.
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// UNSUPPORTED: darwin
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#include <pthread.h>
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#include <stdlib.h>
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#include <sanitizer/lsan_interface.h>
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int detach;
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int leak_arg;
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int leak_retval;
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static void *thread_free(void *args) {
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if (!leak_arg)
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free(args);
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return malloc(234);
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}
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int main(int argc, char **argv) {
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int n = atoi(argv[1]);
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leak_arg = atoi(argv[2]);
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leak_retval = atoi(argv[3]);
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detach = atoi(argv[4]);
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for (int i = 0; i < n; ++i) {
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pthread_t threads[10];
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for (auto &thread : threads) {
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pthread_create(&thread, 0, thread_free, malloc(123));
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if (__lsan_do_recoverable_leak_check())
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return 1;
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}
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for (auto &thread : threads) {
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if (detach) {
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pthread_detach(thread);
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continue;
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}
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void *retval = 0;
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pthread_join(thread, &retval);
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if (!leak_retval)
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free(retval);
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}
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}
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return 0;
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}
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// LEAK: LeakSanitizer: detected memory leaks
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// LEAK123: in main
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// LEAK234: in thread_free
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