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761c6fe8be
Bug: chromium:893460 Change-Id: Ifbeb6f937a6b96c77b02dcf8afe492c5bc617435 Reviewed-on: https://chromium-review.googlesource.com/c/1347773 Reviewed-by: Mark Mentovai <mark@chromium.org> Commit-Queue: Mark Mentovai <mark@chromium.org>
55 lines
2.0 KiB
C++
55 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 <intrin.h>
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#include <windows.h>
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#include "base/logging.h"
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#include "client/crashpad_client.h"
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#include "client/simulate_crash.h"
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#include "util/misc/capture_context.h"
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#include "util/win/address_types.h"
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#include "util/win/context_wrappers.h"
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int wmain(int argc, wchar_t* argv[]) {
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CHECK_EQ(argc, 2);
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crashpad::CrashpadClient client;
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CHECK(client.SetHandlerIPCPipe(argv[1]));
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HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
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PCHECK(out != INVALID_HANDLE_VALUE) << "GetStdHandle";
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CONTEXT context;
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crashpad::CaptureContext(&context);
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crashpad::WinVMAddress break_address =
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reinterpret_cast<crashpad::WinVMAddress>(
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crashpad::ProgramCounterFromCONTEXT(&context));
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// This does not used CheckedWriteFile() because at high optimization
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// settings, a lot of logging code can be inlined, causing there to be a large
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// number of instructions between where the IP is captured and the actual
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// __debugbreak(). Instead call Windows' WriteFile() to minimize the amount of
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// code here. Because the next line is going to crash in any case, there's
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// minimal difference in behavior aside from an indication of what broke when
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// the other end experiences a ReadFile() error.
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DWORD bytes_written;
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WriteFile(
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out, &break_address, sizeof(break_address), &bytes_written, nullptr);
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CRASHPAD_SIMULATE_CRASH();
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return 0;
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}
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