1*673dc3d4SNico Weber // ASan interceptor can be accessed with __interceptor_ prefix. 2*673dc3d4SNico Weber 3*673dc3d4SNico Weber // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s 4*673dc3d4SNico Weber // RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s 5*673dc3d4SNico Weber // RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s 6*673dc3d4SNico Weber // RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s 7*673dc3d4SNico Weber #include <stdlib.h> 8*673dc3d4SNico Weber #include <stdio.h> 9*673dc3d4SNico Weber #include <unistd.h> 10*673dc3d4SNico Weber 11*673dc3d4SNico Weber extern "C" void *__interceptor_malloc(size_t size); malloc(size_t size)12*673dc3d4SNico Weberextern "C" void *malloc(size_t size) { 13*673dc3d4SNico Weber write(2, "malloc call\n", sizeof("malloc call\n") - 1); 14*673dc3d4SNico Weber return __interceptor_malloc(size); 15*673dc3d4SNico Weber } 16*673dc3d4SNico Weber main()17*673dc3d4SNico Weberint main() { 18*673dc3d4SNico Weber char *x = (char*)malloc(10 * sizeof(char)); 19*673dc3d4SNico Weber free(x); 20*673dc3d4SNico Weber return (int)strtol(x, 0, 10); 21*673dc3d4SNico Weber // CHECK: malloc call 22*673dc3d4SNico Weber // CHECK: heap-use-after-free 23*673dc3d4SNico Weber } 24