// ASan interceptor can be accessed with __interceptor_ prefix. // RUN: %clangxx_asan -O0 %s -o %t && not %t 2>&1 | FileCheck %s // RUN: %clangxx_asan -O1 %s -o %t && not %t 2>&1 | FileCheck %s // RUN: %clangxx_asan -O2 %s -o %t && not %t 2>&1 | FileCheck %s // RUN: %clangxx_asan -O3 %s -o %t && not %t 2>&1 | FileCheck %s #include #include #include extern "C" void *__interceptor_malloc(size_t size); extern "C" void *malloc(size_t size) { write(2, "malloc call\n", sizeof("malloc call\n") - 1); return __interceptor_malloc(size); } int main() { char *x = (char*)malloc(10 * sizeof(char)); free(x); return (int)strtol(x, 0, 10); // CHECK: malloc call // CHECK: heap-use-after-free }