1 #include <stdio.h> 2 #include <windows.h> 3 4 // RUN: %clang_cl_asan -LD /Od -DDLL %s -Fe%t.dll 5 // RUN: %clang_cl /Od -DEXE %s -Fe%te.exe 6 // RUN: %env_asan_opts=windows_hook_rtl_allocators=true not %run %te.exe %t.dll 2>&1 | FileCheck %s 7 // REQUIRES: asan-dynamic-runtime 8 // REQUIRES: asan-32-bits 9 10 #include <cassert> 11 #include <stdio.h> 12 #include <windows.h> 13 extern "C" { 14 #if defined(EXE) 15 16 int main(int argc, char **argv) { 17 void *region_without_hooks = HeapAlloc(GetProcessHeap(), 0, 10); 18 HMODULE lib = LoadLibraryA(argv[1]); 19 assert(lib != INVALID_HANDLE_VALUE); 20 21 void *region_w_hooks = HeapAlloc(GetProcessHeap(), 0, 10); 22 assert(region_w_hooks != nullptr); 23 assert(0 != FreeLibrary(lib)); 24 25 fprintf(stderr, "WITHOUT:0x%08x\n", (unsigned int)region_without_hooks); 26 fprintf(stderr, "WITH:0x%08x\n", (unsigned int)region_w_hooks); 27 28 assert(0 != HeapFree(GetProcessHeap(), 0, region_without_hooks)); 29 assert(0 != HeapFree(GetProcessHeap(), 0, region_w_hooks)); 30 31 HeapFree(GetProcessHeap(), 0, region_w_hooks); //will dump 32 } 33 #elif defined(DLL) 34 // This global is registered at startup. 35 36 BOOL WINAPI DllMain(HMODULE, DWORD reason, LPVOID) { 37 fprintf(stderr, "in DLL(reason=%d)\n", (int)reason); 38 fflush(0); 39 return TRUE; 40 } 41 42 // CHECK: in DLL(reason=1) 43 // CHECK: in DLL(reason=0) 44 // CHECK: WITHOUT:[[WITHOUT:0x[0-9a-fA-F]+]] 45 // CHECK: WITH:[[WITH:0x[0-9a-fA-F]+]] 46 // CHECK: AddressSanitizer: attempting double-free on [[WITH]] in thread T0: 47 48 #else 49 #error oops! 50 #endif 51 } 52