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