1// If user provides his own libc functions, ASan doesn't 2// intercept these functions. 3 4// RUN: %clangxx_asan -O0 %s -o %t && %run %t 2>&1 | FileCheck %s 5// RUN: %clangxx_asan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s 6// RUN: %clangxx_asan -O2 %s -o %t && %run %t 2>&1 | FileCheck %s 7// RUN: %clangxx_asan -O3 %s -o %t && %run %t 2>&1 | FileCheck %s 8#include <stdlib.h> 9#include <stdio.h> 10 11extern "C" long strtol(const char *nptr, char **endptr, int base) { 12 fprintf(stderr, "my_strtol_interceptor\n"); 13 return 0; 14} 15 16int main() { 17 char *x = (char*)malloc(10 * sizeof(char)); 18 free(x); 19 return (int)strtol(x, 0, 10); 20 // CHECK: my_strtol_interceptor 21 // CHECK-NOT: heap-use-after-free 22} 23