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https://github.com/chromium/crashpad.git
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2d87606bb5
Previously, StartHandler() launched the handler process, then connected over a pipe to register for crash handling. Instead, the initial client can create and inherit handles to the handler and pass those handle values and other data (addresses, etc.) on the command line. This should improve startup time as there's no need to synchronize with the process at startup, and allows avoiding a call to CreateProcess() directly in StartHandler(), which is important for registration for crash reporting from DllMain(). Incidentally adds new utility functions for string/number conversion and string splitting. Note: API change; UseHandler() is removed for all platforms. BUG=chromium:567850,chromium:656800 Change-Id: I1602724183cb107f805f109674c53e95841b24fd Reviewed-on: https://chromium-review.googlesource.com/400015 Reviewed-by: Mark Mentovai <mark@chromium.org>
116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
// Copyright 2016 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 <stdlib.h>
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#include <windows.h>
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#include <tlhelp32.h>
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#include "base/files/file_path.h"
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#include "base/logging.h"
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#include "client/crashpad_client.h"
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#include "test/paths.h"
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#include "test/win/child_launcher.h"
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#include "util/file/file_io.h"
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#include "util/win/scoped_handle.h"
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#include "util/win/xp_compat.h"
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namespace crashpad {
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namespace test {
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namespace {
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bool CrashAndDumpTarget(const CrashpadClient& client, HANDLE process) {
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DWORD target_pid = GetProcessId(process);
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HANDLE thread_snap_raw = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
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if (thread_snap_raw == INVALID_HANDLE_VALUE) {
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LOG(ERROR) << "CreateToolhelp32Snapshot";
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return false;
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}
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ScopedFileHANDLE thread_snap(thread_snap_raw);
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THREADENTRY32 te32;
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te32.dwSize = sizeof(THREADENTRY32);
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if (!Thread32First(thread_snap.get(), &te32)) {
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LOG(ERROR) << "Thread32First";
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return false;
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}
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int thread_count = 0;
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do {
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if (te32.th32OwnerProcessID == target_pid) {
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thread_count++;
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if (thread_count == 2) {
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// Nominate this lucky thread as our blamee, and dump it. This will be
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// "Thread1" in the child.
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ScopedKernelHANDLE thread(
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OpenThread(kXPThreadAllAccess, false, te32.th32ThreadID));
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if (!client.DumpAndCrashTargetProcess(
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process, thread.get(), 0xdeadbea7)) {
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LOG(ERROR) << "DumpAndCrashTargetProcess failed";
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return false;
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}
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return true;
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}
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}
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} while (Thread32Next(thread_snap.get(), &te32));
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return false;
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}
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int CrashOtherProgram(int argc, wchar_t* argv[]) {
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CrashpadClient client;
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if (argc == 2 || argc == 3) {
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if (!client.SetHandlerIPCPipe(argv[1])) {
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LOG(ERROR) << "SetHandler";
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return EXIT_FAILURE;
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}
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} else {
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fprintf(stderr, "Usage: %ls <server_pipe_name> [noexception]\n", argv[0]);
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return EXIT_FAILURE;
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}
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// Launch another process that hangs.
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base::FilePath test_executable = Paths::Executable();
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std::wstring child_test_executable =
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test_executable.DirName().Append(L"hanging_program.exe").value();
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ChildLauncher child(child_test_executable, argv[1]);
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child.Start();
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// Wait until it's ready.
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char c;
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if (!LoggingReadFile(child.stdout_read_handle(), &c, sizeof(c)) || c != ' ') {
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LOG(ERROR) << "failed child communication";
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return EXIT_FAILURE;
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}
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if (argc == 3 && wcscmp(argv[2], L"noexception") == 0) {
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client.DumpAndCrashTargetProcess(child.process_handle(), 0, 0);
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return EXIT_SUCCESS;
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} else {
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if (CrashAndDumpTarget(client, child.process_handle()))
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return EXIT_SUCCESS;
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}
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return EXIT_FAILURE;
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}
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} // namespace
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} // namespace test
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} // namespace crashpad
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int wmain(int argc, wchar_t* argv[]) {
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return crashpad::test::CrashOtherProgram(argc, argv);
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}
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