| 1 | // RUN: %clang_cl_asan %LD %Od -DDLL %s %Fe%t.dll |
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| 2 | // RUN: %clang_cl %Od -DEXE %s %Fe%te.exe |
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| 3 | // RUN: %env_asan_opts=windows_hook_rtl_allocators=true not %run %te.exe %t.dll 2>&1 | FileCheck %s |
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| 4 | // REQUIRES: asan-dynamic-runtime |
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| 5 | // REQUIRES: asan-32-bits |
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| 6 | |
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| 7 | #include <cassert> |
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| 8 | #include <stdio.h> |
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| 9 | #include <windows.h> |
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| 10 | |
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| 11 | extern "C" { |
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| 12 | #if defined(EXE) |
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| 13 | using AllocateFunctionPtr = PVOID(__stdcall *)(PVOID, ULONG, SIZE_T); |
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| 14 | using FreeFunctionPtr = PVOID(__stdcall *)(PVOID, ULONG, PVOID); |
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| 15 | using RtlReAllocateHeapPtr = PVOID(__stdcall *)(PVOID, ULONG, PVOID, SIZE_T); |
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| 16 | |
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| 17 | int main(int argc, char **argv) { |
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| 18 | HMODULE NtDllHandle = GetModuleHandle("ntdll.dll" ); |
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| 19 | if (!NtDllHandle) { |
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| 20 | puts("Couldn't load ntdll??" ); |
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| 21 | return -1; |
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| 22 | } |
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| 23 | |
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| 24 | auto RtlAllocateHeap_ptr = |
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| 25 | (AllocateFunctionPtr)GetProcAddress(NtDllHandle, "RtlAllocateHeap" ); |
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| 26 | if (RtlAllocateHeap_ptr == 0) { |
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| 27 | puts("Couldn't RtlAllocateHeap" ); |
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| 28 | return -1; |
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| 29 | } |
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| 30 | |
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| 31 | auto RtlFreeHeap_ptr = |
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| 32 | (FreeFunctionPtr)GetProcAddress(NtDllHandle, "RtlFreeHeap" ); |
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| 33 | if (RtlFreeHeap_ptr == 0) { |
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| 34 | puts("Couldn't get RtlFreeHeap" ); |
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| 35 | return -1; |
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| 36 | } |
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| 37 | |
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| 38 | auto RtlReAllocateHeap_ptr = |
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| 39 | (RtlReAllocateHeapPtr)GetProcAddress(NtDllHandle, "RtlReAllocateHeap" ); |
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| 40 | if (RtlReAllocateHeap_ptr == 0) { |
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| 41 | puts("Couldn't get rtlreallocateheap\n" ); |
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| 42 | return -1; |
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| 43 | } |
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| 44 | |
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| 45 | char *buffer; |
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| 46 | buffer = (char *)RtlAllocateHeap_ptr(GetProcessHeap(), 0, 32); |
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| 47 | |
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| 48 | HMODULE lib = LoadLibraryA(argv[1]); |
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| 49 | assert(lib != INVALID_HANDLE_VALUE); |
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| 50 | assert(0 != FreeLibrary(lib)); |
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| 51 | |
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| 52 | if (!RtlFreeHeap_ptr(GetProcessHeap(), 0, buffer)) { |
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| 53 | puts("Couldn't RtlFreeHeap" ); |
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| 54 | return -1; |
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| 55 | } |
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| 56 | RtlReAllocateHeap_ptr(GetProcessHeap(), 0, buffer, 100); // should dump |
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| 57 | } |
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| 58 | |
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| 59 | #elif defined(DLL) |
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| 60 | // This global is registered at startup. |
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| 61 | |
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| 62 | BOOL WINAPI DllMain(HMODULE, DWORD reason, LPVOID) { |
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| 63 | fprintf(stderr, "in DLL(reason=%d)\n" , (int)reason); |
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| 64 | fflush(0); |
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| 65 | return TRUE; |
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| 66 | } |
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| 67 | |
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| 68 | // CHECK: in DLL(reason=1) |
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| 69 | // CHECK: in DLL(reason=0) |
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| 70 | // CHECK: AddressSanitizer: nested bug in the same thread, aborting. |
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| 71 | |
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| 72 | #else |
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| 73 | #error oops! |
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| 74 | #endif |
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| 75 | } |
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| 76 | |
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