1 // If user provides his own libc functions, ASan doesn't 2 // intercept these functions. 3 4 // RUN: %clangxx_asan -m64 -O0 %s -o %t && %t 2>&1 | FileCheck %s 5 // RUN: %clangxx_asan -m64 -O1 %s -o %t && %t 2>&1 | FileCheck %s 6 // RUN: %clangxx_asan -m64 -O2 %s -o %t && %t 2>&1 | FileCheck %s 7 // RUN: %clangxx_asan -m64 -O3 %s -o %t && %t 2>&1 | FileCheck %s 8 // RUN: %clangxx_asan -m32 -O0 %s -o %t && %t 2>&1 | FileCheck %s 9 // RUN: %clangxx_asan -m32 -O1 %s -o %t && %t 2>&1 | FileCheck %s 10 // RUN: %clangxx_asan -m32 -O2 %s -o %t && %t 2>&1 | FileCheck %s 11 // RUN: %clangxx_asan -m32 -O3 %s -o %t && %t 2>&1 | FileCheck %s 12 #include <stdlib.h> 13 #include <stdio.h> 14 15 extern "C" long strtol(const char *nptr, char **endptr, int base) { 16 fprintf(stderr, "my_strtol_interceptor\n"); 17 return 0; 18 } 19 20 int main() { 21 char *x = (char*)malloc(10 * sizeof(char)); 22 free(x); 23 return (int)strtol(x, 0, 10); 24 // CHECK: my_strtol_interceptor 25 // CHECK-NOT: heap-use-after-free 26 } 27