diff options
Diffstat (limited to 'lib/asan/lit_tests/TestCases/Linux/tsd_dtor_leak.cc')
-rw-r--r-- | lib/asan/lit_tests/TestCases/Linux/tsd_dtor_leak.cc | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/TestCases/Linux/tsd_dtor_leak.cc b/lib/asan/lit_tests/TestCases/Linux/tsd_dtor_leak.cc new file mode 100644 index 000000000000..a1d89ee437d4 --- /dev/null +++ b/lib/asan/lit_tests/TestCases/Linux/tsd_dtor_leak.cc @@ -0,0 +1,39 @@ +// Regression test for a leak in tsd: +// https://code.google.com/p/address-sanitizer/issues/detail?id=233 +// RUN: %clangxx_asan -O1 %s -o %t +// RUN: ASAN_OPTIONS=quarantine_size=1 %t +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> + +extern "C" size_t __asan_get_heap_size(); +static pthread_key_t tsd_key; + +void *Thread(void *) { + pthread_setspecific(tsd_key, malloc(10)); + return 0; +} + +static volatile void *v; + +void Dtor(void *tsd) { + v = malloc(10000); + free(tsd); + free((void*)v); // The bug was that this was leaking. +} + +int main() { + assert(0 == pthread_key_create(&tsd_key, Dtor)); + size_t old_heap_size = 0; + for (int i = 0; i < 10; i++) { + pthread_t t; + pthread_create(&t, 0, Thread, 0); + pthread_join(t, 0); + size_t new_heap_size = __asan_get_heap_size(); + fprintf(stderr, "heap size: new: %zd old: %zd\n", new_heap_size, old_heap_size); + if (old_heap_size) + assert(old_heap_size == new_heap_size); + old_heap_size = new_heap_size; + } +} |