107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "snapshot/win/process_subrange_reader.h"
|
|
|
|
#include "base/logging.h"
|
|
#include "base/numerics/safe_conversions.h"
|
|
#include "snapshot/win/process_reader_win.h"
|
|
|
|
namespace crashpad {
|
|
|
|
ProcessSubrangeReader::ProcessSubrangeReader()
|
|
: name_(),
|
|
range_(),
|
|
process_reader_(nullptr) {
|
|
}
|
|
|
|
ProcessSubrangeReader::~ProcessSubrangeReader() {
|
|
}
|
|
|
|
bool ProcessSubrangeReader::Initialize(ProcessReaderWin* process_reader,
|
|
WinVMAddress base,
|
|
WinVMSize size,
|
|
const std::string& name) {
|
|
INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
|
|
|
|
if (!InitializeInternal(process_reader, base, size, name)) {
|
|
return false;
|
|
}
|
|
|
|
INITIALIZATION_STATE_SET_VALID(initialized_);
|
|
return true;
|
|
}
|
|
|
|
bool ProcessSubrangeReader::InitializeSubrange(
|
|
const ProcessSubrangeReader& that,
|
|
WinVMAddress base,
|
|
WinVMSize size,
|
|
const std::string& sub_name) {
|
|
INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
|
|
INITIALIZATION_STATE_DCHECK_VALID(that.initialized_);
|
|
|
|
if (!InitializeInternal(
|
|
that.process_reader_, base, size, that.name_ + " " + sub_name)) {
|
|
return false;
|
|
}
|
|
|
|
if (!that.range_.ContainsRange(range_)) {
|
|
LOG(WARNING) << "range " << range_.AsString() << " outside of range "
|
|
<< that.range_.AsString() << " for " << name_;
|
|
return false;
|
|
}
|
|
|
|
INITIALIZATION_STATE_SET_VALID(initialized_);
|
|
return true;
|
|
}
|
|
|
|
bool ProcessSubrangeReader::ReadMemory(WinVMAddress address,
|
|
WinVMSize size,
|
|
void* into) const {
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
|
|
|
CheckedWinAddressRange read_range(process_reader_->Is64Bit(), address, size);
|
|
if (!read_range.IsValid()) {
|
|
LOG(WARNING) << "invalid read range " << read_range.AsString();
|
|
return false;
|
|
}
|
|
|
|
if (!range_.ContainsRange(read_range)) {
|
|
LOG(WARNING) << "attempt to read outside of " << name_ << " range "
|
|
<< range_.AsString() << " at range " << read_range.AsString();
|
|
return false;
|
|
}
|
|
|
|
return process_reader_->Memory()->Read(
|
|
address, base::checked_cast<size_t>(size), into);
|
|
}
|
|
|
|
bool ProcessSubrangeReader::InitializeInternal(ProcessReaderWin* process_reader,
|
|
WinVMAddress base,
|
|
WinVMSize size,
|
|
const std::string& name) {
|
|
range_.SetRange(process_reader->Is64Bit(), base, size);
|
|
if (!range_.IsValid()) {
|
|
LOG(WARNING) << "invalid range " << range_.AsString() << " for " << name;
|
|
return false;
|
|
}
|
|
|
|
name_ = name;
|
|
process_reader_ = process_reader;
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace crashpad
|