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d075a9eb2e
These wrap the GetProcAddress(LoadLibrary(), …) idiom into macros that are much less wordy. TEST=crashpad_util_test GetFunction.GetFunction and all others R=scottmg@chromium.org Review URL: https://codereview.chromium.org/1405323003 .
124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <windows.h>
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#include <winternl.h>
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// ntstatus.h conflicts with windows.h so define this locally.
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#ifndef STATUS_NO_SUCH_FILE
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#define STATUS_NO_SUCH_FILE static_cast<NTSTATUS>(0xC000000F)
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#endif
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#include "base/basictypes.h"
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#include "base/logging.h"
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#include "client/crashpad_client.h"
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#include "tools/tool_support.h"
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#include "util/win/critical_section_with_debug_info.h"
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#include "util/win/get_function.h"
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namespace crashpad {
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namespace {
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CRITICAL_SECTION g_test_critical_section;
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ULONG RtlNtStatusToDosError(NTSTATUS status) {
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static const auto rtl_nt_status_to_dos_error =
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GET_FUNCTION_REQUIRED(L"ntdll.dll", ::RtlNtStatusToDosError);
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return rtl_nt_status_to_dos_error(status);
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}
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void AllocateMemoryOfVariousProtections() {
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SYSTEM_INFO system_info;
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GetSystemInfo(&system_info);
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const size_t kPageSize = system_info.dwPageSize;
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const uint32_t kPageTypes[] = {
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PAGE_NOACCESS,
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PAGE_READONLY,
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PAGE_READWRITE,
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PAGE_EXECUTE,
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PAGE_EXECUTE_READ,
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PAGE_EXECUTE_READWRITE,
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// PAGE_NOACCESS is invalid with PAGE_GUARD.
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PAGE_READONLY | PAGE_GUARD,
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PAGE_READWRITE | PAGE_GUARD,
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PAGE_EXECUTE | PAGE_GUARD,
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PAGE_EXECUTE_READ | PAGE_GUARD,
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PAGE_EXECUTE_READWRITE | PAGE_GUARD,
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};
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// All of these allocations are leaked, we want to view them in windbg via
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// !vprot.
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void* reserve = VirtualAlloc(
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nullptr, arraysize(kPageTypes) * kPageSize, MEM_RESERVE, PAGE_READWRITE);
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PCHECK(reserve) << "VirtualAlloc MEM_RESERVE";
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uintptr_t reserve_as_int = reinterpret_cast<uintptr_t>(reserve);
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for (size_t i = 0; i < arraysize(kPageTypes); ++i) {
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void* result =
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VirtualAlloc(reinterpret_cast<void*>(reserve_as_int + (kPageSize * i)),
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kPageSize,
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MEM_COMMIT,
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kPageTypes[i]);
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PCHECK(result) << "VirtualAlloc MEM_COMMIT " << i;
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}
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}
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void SomeCrashyFunction() {
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// SetLastError and NTSTATUS so that we have something to view in !gle in
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// windbg. RtlNtStatusToDosError() stores STATUS_NO_SUCH_FILE into the
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// LastStatusError of the TEB as a side-effect, and we'll be setting
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// ERROR_FILE_NOT_FOUND for GetLastError().
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SetLastError(RtlNtStatusToDosError(STATUS_NO_SUCH_FILE));
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volatile int* foo = reinterpret_cast<volatile int*>(7);
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*foo = 42;
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}
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int CrashyMain(int argc, char* argv[]) {
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <server_pipe_name>\n", argv[0]);
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return 1;
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}
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CrashpadClient client;
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if (!client.SetHandler(argv[1])) {
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LOG(ERROR) << "SetHandler";
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return 1;
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}
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if (!client.UseHandler()) {
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LOG(ERROR) << "UseHandler";
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return 1;
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}
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AllocateMemoryOfVariousProtections();
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if (InitializeCriticalSectionWithDebugInfoIfPossible(
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&g_test_critical_section)) {
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EnterCriticalSection(&g_test_critical_section);
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}
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SomeCrashyFunction();
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return 0;
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}
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} // namespace
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} // namespace crashpad
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int wmain(int argc, wchar_t* argv[]) {
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return crashpad::ToolSupport::Wmain(argc, argv, crashpad::CrashyMain);
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}
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