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df5d1aa3ff
We also remove the NOTREACHED guard from ExtraMemory and just let it return nothing (see comment for rationale). This should be the last of the methods in ThreadSnapshotMinidump. Bug: crashpad:10 Change-Id: If7148d3ead1ae5887da300131efc8a078b350b54 Reviewed-on: https://chromium-review.googlesource.com/c/1296806 Reviewed-by: Scott Graham <scottmg@chromium.org> Commit-Queue: Casey Dahlin <sadmac@google.com>
109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
// Copyright 2018 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 "snapshot/minidump/memory_snapshot_minidump.h"
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#include <memory>
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namespace crashpad {
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namespace internal {
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MemorySnapshotMinidump::MemorySnapshotMinidump()
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: MemorySnapshot(),
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address_(0),
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data_(),
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initialized_() {}
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MemorySnapshotMinidump::~MemorySnapshotMinidump() {}
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bool MemorySnapshotMinidump::Initialize(FileReaderInterface* file_reader,
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RVA location) {
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INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
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MINIDUMP_MEMORY_DESCRIPTOR descriptor;
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if (!file_reader->SeekSet(location)) {
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return false;
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}
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if (!file_reader->ReadExactly(&descriptor, sizeof(descriptor))) {
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return false;
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}
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address_ = descriptor.StartOfMemoryRange;
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data_.resize(descriptor.Memory.DataSize);
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if (!file_reader->SeekSet(descriptor.Memory.Rva)) {
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return false;
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}
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if (!file_reader->ReadExactly(data_.data(), data_.size())) {
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return false;
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}
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INITIALIZATION_STATE_SET_VALID(initialized_);
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return true;
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}
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uint64_t MemorySnapshotMinidump::Address() const {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return address_;
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}
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size_t MemorySnapshotMinidump::Size() const {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return data_.size();
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}
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bool MemorySnapshotMinidump::Read(Delegate* delegate) const {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return delegate->MemorySnapshotDelegateRead(
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const_cast<uint8_t*>(data_.data()), data_.size());
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}
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const MemorySnapshot* MemorySnapshotMinidump::MergeWithOtherSnapshot(
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const MemorySnapshot* other) const {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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// TODO: Verify type of other
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auto other_cast = reinterpret_cast<const MemorySnapshotMinidump*>(other);
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INITIALIZATION_STATE_DCHECK_VALID(other_cast->initialized_);
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if (other_cast->address_ < address_) {
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return other_cast->MergeWithOtherSnapshot(this);
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}
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CheckedRange<uint64_t, size_t> merged(0, 0);
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if (!LoggingDetermineMergedRange(this, other, &merged)) {
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return nullptr;
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}
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auto result = std::make_unique<MemorySnapshotMinidump>();
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result->address_ = merged.base();
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result->data_ = data_;
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if (result->data_.size() == merged.size()) {
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return result.release();
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}
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result->data_.resize(other_cast->address_ - address_);
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result->data_.insert(result->data_.end(), other_cast->data_.begin(),
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other_cast->data_.end());
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return result.release();
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}
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} // namespace internal
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} // namespace crashpad
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