32 lines · cpp
1// RUN: %clang_cl_asan %Od %s %Fe%t2// RUN: %run %t | FileCheck %s3 4// This is a test for http://code.google.com/p/address-sanitizer/issues/detail?id=3055 6#include <stdio.h>7 8typedef void (*FPTR)();9 10// __xi_a and __xi_z are defined in VC/crt/src/crt0dat.c11// and are located in .CRT$XIA and .CRT$XIZ respectively.12extern "C" FPTR __xi_a, __xi_z;13 14int main() {15 unsigned count = 0;16 17 // Iterate through CRT initializers.18 for (FPTR* it = &__xi_a; it < &__xi_z; ++it) {19 if (*it)20 count++;21 }22 23 printf("Number of nonzero CRT initializers: %u\n", count);24// CHECK: Number of nonzero CRT initializers25}26 27void call_me_maybe() {}28 29#pragma data_seg(".CRT$XIB")30// Add an initializer that shouldn't get its own redzone.31FPTR run_on_startup = call_me_maybe;32