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4688351623
This supports the “double handler” or “double handler with low probability” models from https://crashpad.chromium.org/bug/143. For crashpad_handler to be become its own client, it needs access to its own executable path to pass to CrashpadClient::StartHandler(). This was formerly available in the test-only test::Paths::Executable(). Bring that function’s implementation to the non-test Paths::Executable() in util/misc, and rename test::Paths to test::TestPaths to avoid future confusion. test::TestPaths must still be used to access TestDataRoot(), which does not make any sense to non-test code. test::TestPaths::Executable() is retained for use by tests, which most likely prefer the fatal semantics of that function. Paths::Executable() is not fatal because for the purposes of implementing the double handler, a failure to locate the executable path (which may happen on some systems in deeply-nested directory hierarchies) shouldn’t cause the initial crashpad_handler to abort, even if it does prevent a second crashpad_handler from being started. Bug: crashpad:143 Test: crashpad_util_test Paths.*, crashpad_test_test TestPaths.* Change-Id: I9f75bf61839ce51e33c9f7c0d7031cebead6a156 Reviewed-on: https://chromium-review.googlesource.com/466346 Reviewed-by: Scott Graham <scottmg@chromium.org> Commit-Queue: Mark Mentovai <mark@chromium.org>
69 lines
2.0 KiB
C++
69 lines
2.0 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 <stdlib.h>
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#include <windows.h>
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#include "base/files/file_path.h"
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#include "base/logging.h"
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#include "build/build_config.h"
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#include "client/crashpad_client.h"
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#include "test/test_paths.h"
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#if !defined(ARCH_CPU_X86)
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#error This test is only supported on x86.
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#endif // !ARCH_CPU_X86
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namespace crashpad {
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namespace {
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int CrashyLoadZ7Main(int argc, wchar_t* argv[]) {
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if (argc != 2) {
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fprintf(stderr, "Usage: %ls <server_pipe_name>\n", argv[0]);
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return EXIT_FAILURE;
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}
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CrashpadClient client;
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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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// The DLL has /Z7 symbols embedded in the binary (rather than in a .pdb).
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// There's only an x86 version of this dll as newer x64 toolchains can't
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// generate this format any more.
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base::FilePath z7_path = test::TestPaths::TestDataRoot().Append(
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FILE_PATH_LITERAL("handler/win/z7_test.dll"));
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HMODULE z7_test = LoadLibrary(z7_path.value().c_str());
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if (!z7_test) {
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PLOG(ERROR) << "LoadLibrary";
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return EXIT_FAILURE;
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}
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FARPROC crash_me = GetProcAddress(z7_test, "CrashMe");
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if (!crash_me) {
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PLOG(ERROR) << "GetProcAddress";
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return EXIT_FAILURE;
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}
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reinterpret_cast<void(*)()>(crash_me)();
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return EXIT_SUCCESS;
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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::CrashyLoadZ7Main(argc, argv);
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}
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