1 | // Test handling of arg and retval of child thread. |
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2 | |
3 | // RUN: %clangxx_lsan -pthread %s -o %t |
4 | // RUN: %run not %t 10 1 0 0 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK123 |
5 | // RUN: %run not %t 10 0 1 0 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK234 |
6 | // RUN: %run not %t 10 0 0 1 2>&1 | FileCheck %s --check-prefixes=LEAK,LEAK234 |
7 | // RUN: %run %t 10 0 0 0 |
8 | |
9 | // This test appears to be flaky on x86_64-darwin buildbots. |
10 | // UNSUPPORTED: darwin |
11 | |
12 | #include <pthread.h> |
13 | #include <stdlib.h> |
14 | |
15 | #include <sanitizer/lsan_interface.h> |
16 | |
17 | int detach; |
18 | int leak_arg; |
19 | int leak_retval; |
20 | |
21 | static void *thread_free(void *args) { |
22 | if (!leak_arg) |
23 | free(ptr: args); |
24 | return malloc(size: 234); |
25 | } |
26 | |
27 | int main(int argc, char **argv) { |
28 | int n = atoi(nptr: argv[1]); |
29 | leak_arg = atoi(nptr: argv[2]); |
30 | leak_retval = atoi(nptr: argv[3]); |
31 | detach = atoi(nptr: argv[4]); |
32 | for (int i = 0; i < n; ++i) { |
33 | pthread_t threads[10]; |
34 | |
35 | for (auto &thread : threads) { |
36 | pthread_create(newthread: &thread, attr: 0, start_routine: thread_free, arg: malloc(size: 123)); |
37 | if (__lsan_do_recoverable_leak_check()) |
38 | return 1; |
39 | } |
40 | |
41 | for (auto &thread : threads) { |
42 | if (detach) { |
43 | pthread_detach(th: thread); |
44 | continue; |
45 | } |
46 | void *retval = 0; |
47 | pthread_join(th: thread, thread_return: &retval); |
48 | if (!leak_retval) |
49 | free(ptr: retval); |
50 | } |
51 | } |
52 | return 0; |
53 | } |
54 | |
55 | // LEAK: LeakSanitizer: detected memory leaks |
56 | // LEAK123: in main |
57 | // LEAK234: in thread_free |
58 |