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// Test handling of arg and retval of child thread.
// RUN: %clangxx_lsan -pthread %s -o %t
// RUN: %run not %t 10 1 0 0 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK123
// RUN: %run not %t 10 0 1 0 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK234
// RUN: %run not %t 10 0 0 1 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK234
// RUN: %run %t 10 0 0 0
// This test appears to be flaky on x86_64-darwin buildbots.
// UNSUPPORTED: darwin
#include <pthread.h>
#include <stdlib.h>
#include <sanitizer/lsan_interface.h>
int detach;
int leak_arg;
int leak_retval;
static void *thread_free(void *args) {
if (!leak_arg)
free(args);
return malloc(234);
}
int main(int argc, char **argv) {
int n = atoi(argv[1]);
leak_arg = atoi(argv[2]);
leak_retval = atoi(argv[3]);
detach = atoi(argv[4]);
for (int i = 0; i < n; ++i) {
pthread_t threads[10];
for (auto &thread : threads) {
pthread_create(&thread, 0, thread_free, malloc(123));
if (__lsan_do_recoverable_leak_check())
return 1;
}
for (auto &thread : threads) {
if (detach) {
pthread_detach(thread);
continue;
}
void *retval = 0;
pthread_join(thread, &retval);
if (!leak_retval)
free(retval);
}
}
return 0;
}
// LEAK: LeakSanitizer: detected memory leaks
// LEAK123: in main
// LEAK234: in thread_free
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