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https://github.com/chromium/crashpad.git
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22c386d1ac
It's expected that iOS intermediate dumps can be written with missing information, but it's better to try and report as much as possible rather than drop the incomplete minidump. Bug: b/284959148 Change-Id: I04110b576a4ee552814234d559c9ba85db0382f0 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4582167 Commit-Queue: Justin Cohen <justincohen@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
// Copyright 2014 The Crashpad Authors
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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 "minidump/minidump_exception_writer.h"
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#include <utility>
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#include "base/check_op.h"
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#include "base/numerics/safe_conversions.h"
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#include "minidump/minidump_context_writer.h"
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#include "snapshot/exception_snapshot.h"
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#include "util/file/file_writer.h"
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#include "util/misc/arraysize.h"
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namespace crashpad {
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MinidumpExceptionWriter::MinidumpExceptionWriter()
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: MinidumpStreamWriter(), exception_(), context_(nullptr) {
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}
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MinidumpExceptionWriter::~MinidumpExceptionWriter() {
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}
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void MinidumpExceptionWriter::InitializeFromSnapshot(
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const ExceptionSnapshot* exception_snapshot,
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const MinidumpThreadIDMap& thread_id_map,
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bool allow_missing_thread_id_from_map) {
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DCHECK_EQ(state(), kStateMutable);
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DCHECK(!context_);
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auto thread_id_it = thread_id_map.find(exception_snapshot->ThreadID());
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bool thread_id_missing = thread_id_it == thread_id_map.end();
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if (allow_missing_thread_id_from_map && thread_id_missing) {
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SetThreadID(static_cast<uint32_t>(exception_snapshot->ThreadID()));
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} else {
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DCHECK(!thread_id_missing);
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SetThreadID(thread_id_it->second);
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}
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SetExceptionCode(exception_snapshot->Exception());
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SetExceptionFlags(exception_snapshot->ExceptionInfo());
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SetExceptionAddress(exception_snapshot->ExceptionAddress());
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SetExceptionInformation(exception_snapshot->Codes());
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std::unique_ptr<MinidumpContextWriter> context =
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MinidumpContextWriter::CreateFromSnapshot(exception_snapshot->Context());
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SetContext(std::move(context));
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}
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void MinidumpExceptionWriter::SetContext(
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std::unique_ptr<MinidumpContextWriter> context) {
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DCHECK_EQ(state(), kStateMutable);
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context_ = std::move(context);
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}
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void MinidumpExceptionWriter::SetExceptionInformation(
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const std::vector<uint64_t>& exception_information) {
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DCHECK_EQ(state(), kStateMutable);
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const size_t parameters = exception_information.size();
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constexpr size_t kMaxParameters =
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ArraySize(exception_.ExceptionRecord.ExceptionInformation);
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CHECK_LE(parameters, kMaxParameters);
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exception_.ExceptionRecord.NumberParameters =
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base::checked_cast<uint32_t>(parameters);
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size_t parameter = 0;
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for (; parameter < parameters; ++parameter) {
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exception_.ExceptionRecord.ExceptionInformation[parameter] =
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exception_information[parameter];
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}
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for (; parameter < kMaxParameters; ++parameter) {
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exception_.ExceptionRecord.ExceptionInformation[parameter] = 0;
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}
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}
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bool MinidumpExceptionWriter::Freeze() {
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DCHECK_EQ(state(), kStateMutable);
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CHECK(context_);
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if (!MinidumpStreamWriter::Freeze()) {
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return false;
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}
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context_->RegisterLocationDescriptor(&exception_.ThreadContext);
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return true;
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}
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size_t MinidumpExceptionWriter::SizeOfObject() {
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DCHECK_GE(state(), kStateFrozen);
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return sizeof(exception_);
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}
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std::vector<internal::MinidumpWritable*> MinidumpExceptionWriter::Children() {
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DCHECK_GE(state(), kStateFrozen);
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DCHECK(context_);
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std::vector<MinidumpWritable*> children;
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children.push_back(context_.get());
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return children;
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}
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bool MinidumpExceptionWriter::WriteObject(FileWriterInterface* file_writer) {
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DCHECK_EQ(state(), kStateWritable);
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return file_writer->Write(&exception_, sizeof(exception_));
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}
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MinidumpStreamType MinidumpExceptionWriter::StreamType() const {
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return kMinidumpStreamTypeException;
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}
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} // namespace crashpad
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