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https://github.com/chromium/crashpad.git
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720882cc14
I'm not sure why I don't get these locally, but the bots aren't happy: https://build.chromium.org/p/client.crashpad/builders/crashpad_win_dbg/builds/271/steps/compile%20with%20ninja/logs/stdio FAILED: E:\b\depot_tools\python276_bin\python.exe gyp-win-tool link-with-manifests environment.x64 True crashpad_snapshot_test_module.dll "E:\b\depot_tools\python276_bin\python.exe gyp-win-tool link-wrapper environment.x64 False link.exe /nologo /IMPLIB:crashpad_snapshot_test_module.dll.lib /DLL /OUT:crashpad_snapshot_test_module.dll @crashpad_snapshot_test_module.dll.rsp" 2 mt.exe rc.exe "obj\snapshot\crashpad_snapshot_test_module.crashpad_snapshot_test_module.dll.intermediate.manifest" obj\snapshot\crashpad_snapshot_test_module.crashpad_snapshot_test_module.dll.generated.manifest crashpad_client.lib(crashpad_client.crashpad_info.obj) : error LNK2005: "public: static unsigned int const crashpad::CrashpadInfo::kSignature" (?kSignature@CrashpadInfo@crashpad@@2IB) already defined in crashpad_snapshot_test_module.crashpad_info_client_options_test_module.obj R=mark@chromium.org BUG=crashpad:1 Review URL: https://codereview.chromium.org/1123643004
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
// Copyright 2014 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 "client/crashpad_info.h"
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#include "build/build_config.h"
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#include "util/stdlib/cxx.h"
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#if defined(OS_MACOSX)
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#include <mach-o/loader.h>
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#endif
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#if CXX_LIBRARY_VERSION >= 2011
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#include <type_traits>
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#endif
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namespace {
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static const uint32_t kCrashpadInfoVersion = 1;
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} // namespace
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namespace crashpad {
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#if CXX_LIBRARY_VERSION >= 2011 || DOXYGEN
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// In C++11, check that CrashpadInfo has standard layout, which is what is
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// actually important.
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static_assert(std::is_standard_layout<CrashpadInfo>::value,
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"CrashpadInfo must be standard layout");
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#else
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// In C++98 (ISO 14882), section 9.5.1 says that a union cannot have a member
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// with a non-trivial ctor, copy ctor, dtor, or assignment operator. Use this
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// property to ensure that CrashpadInfo remains POD. This doesn’t work for C++11
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// because the requirements for unions have been relaxed.
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union Compile_Assert {
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CrashpadInfo Compile_Assert__CrashpadInfo_must_be_pod;
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};
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#endif
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// This structure needs to be stored somewhere that is easy to find without
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// external information.
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//
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// It isn’t placed in an unnamed namespace: hopefully, this will catch attempts
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// to place multiple copies of this structure into the same module. If that’s
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// attempted, and the name of the symbol is the same in each translation unit,
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// it will result in a linker error, which is better than having multiple
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// structures show up.
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//
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// This may result in a static module initializer in debug-mode builds, but
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// because it’s POD, no code should need to run to initialize this under
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// release-mode optimization.
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#if defined(OS_MACOSX)
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// Put the structure in __DATA,__crashpad_info where it can be easily found
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// without having to consult the symbol table. The “used” attribute prevents it
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// from being dead-stripped.
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__attribute__((section(SEG_DATA ",__crashpad_info"),
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used,
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visibility("hidden"))) CrashpadInfo g_crashpad_info;
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#elif defined(OS_WIN)
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// Put the struct in a section name CPADinfo where it can be found without the
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// symbol table.
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#pragma section("CPADinfo", read, write)
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__declspec(allocate("CPADinfo")) CrashpadInfo g_crashpad_info;
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#endif
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// static
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CrashpadInfo* CrashpadInfo::GetCrashpadInfo() {
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return &g_crashpad_info;
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}
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CrashpadInfo::CrashpadInfo()
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: signature_(kSignature),
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size_(sizeof(*this)),
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version_(kCrashpadInfoVersion),
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crashpad_handler_behavior_(TriState::kUnset),
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system_crash_reporter_forwarding_(TriState::kUnset),
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padding_0_(0),
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simple_annotations_(nullptr) {
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}
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} // namespace crashpad
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