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https://github.com/chromium/crashpad.git
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105 lines
3.3 KiB
C++
105 lines
3.3 KiB
C++
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// 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 "snapshot/win/process_subrange_reader.h"
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#include "base/logging.h"
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#include "snapshot/win/process_reader_win.h"
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namespace crashpad {
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ProcessSubrangeReader::ProcessSubrangeReader()
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: name_(),
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range_(),
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process_reader_(nullptr) {
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}
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ProcessSubrangeReader::~ProcessSubrangeReader() {
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}
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bool ProcessSubrangeReader::Initialize(ProcessReaderWin* process_reader,
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WinVMAddress base,
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WinVMSize size,
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const std::string& name) {
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INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
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if (!InitializeInternal(process_reader, base, size, name)) {
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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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bool ProcessSubrangeReader::InitializeSubrange(
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const ProcessSubrangeReader& that,
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WinVMAddress base,
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WinVMSize size,
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const std::string& sub_name) {
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INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
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INITIALIZATION_STATE_DCHECK_VALID(that.initialized_);
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if (!InitializeInternal(
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that.process_reader_, base, size, that.name_ + " " + sub_name)) {
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return false;
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}
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if (!that.range_.ContainsRange(range_)) {
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LOG(WARNING) << "range " << range_.AsString() << " outside of range "
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<< that.range_.AsString() << " for " << name_;
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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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bool ProcessSubrangeReader::ReadMemory(WinVMAddress address,
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WinVMSize size,
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void* into) const {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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CheckedWinAddressRange read_range(process_reader_->Is64Bit(), address, size);
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if (!read_range.IsValid()) {
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LOG(WARNING) << "invalid read range " << read_range.AsString();
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return false;
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}
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if (!range_.ContainsRange(read_range)) {
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LOG(WARNING) << "attempt to read outside of " << name_ << " range "
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<< range_.AsString() << " at range " << read_range.AsString();
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return false;
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}
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return process_reader_->ReadMemory(address, size, into);
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}
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bool ProcessSubrangeReader::InitializeInternal(ProcessReaderWin* process_reader,
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WinVMAddress base,
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WinVMSize size,
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const std::string& name) {
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range_.SetRange(process_reader->Is64Bit(), base, size);
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if (!range_.IsValid()) {
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LOG(WARNING) << "invalid range " << range_.AsString() << " for " << name;
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return false;
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}
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name_ = name;
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process_reader_ = process_reader;
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return true;
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}
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} // namespace crashpad
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