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// Copyright 2019 The Crashpad Authors
//
// 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/minidump/exception_snapshot_minidump.h"
#include "snapshot/minidump/minidump_string_reader.h"
namespace crashpad {
namespace internal {
ExceptionSnapshotMinidump::ExceptionSnapshotMinidump()
: ExceptionSnapshot(),
minidump_exception_stream_(),
context_(),
exception_information_(),
initialized_() {}
ExceptionSnapshotMinidump::~ExceptionSnapshotMinidump() {}
bool ExceptionSnapshotMinidump::Initialize(FileReaderInterface* file_reader,
CPUArchitecture arch,
RVA minidump_exception_stream_rva) {
DCHECK(initialized_.is_uninitialized());
initialized_.set_invalid();
std::vector<unsigned char> minidump_context;
if (!file_reader->SeekSet(minidump_exception_stream_rva)) {
return false;
}
if (!file_reader->ReadExactly(&minidump_exception_stream_,
sizeof(minidump_exception_stream_))) {
return false;
}
const size_t num_parameters =
minidump_exception_stream_.ExceptionRecord.NumberParameters;
for (size_t i = 0; i < num_parameters; ++i) {
exception_information_.push_back(
minidump_exception_stream_.ExceptionRecord.ExceptionInformation[i]);
}
if (!file_reader->SeekSet(minidump_exception_stream_.ThreadContext.Rva)) {
return false;
}
minidump_context.resize(minidump_exception_stream_.ThreadContext.DataSize);
if (!file_reader->ReadExactly(minidump_context.data(),
minidump_context.size())) {
return false;
}
if (!context_.Initialize(arch, minidump_context)) {
return false;
}
initialized_.set_valid();
return true;
}
const CPUContext* ExceptionSnapshotMinidump::Context() const {
DCHECK(initialized_.is_valid());
return context_.Get();
}
uint64_t ExceptionSnapshotMinidump::ThreadID() const {
DCHECK(initialized_.is_valid());
return minidump_exception_stream_.ThreadId;
}
uint32_t ExceptionSnapshotMinidump::Exception() const {
DCHECK(initialized_.is_valid());
return minidump_exception_stream_.ExceptionRecord.ExceptionCode;
}
uint32_t ExceptionSnapshotMinidump::ExceptionInfo() const {
DCHECK(initialized_.is_valid());
return minidump_exception_stream_.ExceptionRecord.ExceptionFlags;
}
uint64_t ExceptionSnapshotMinidump::ExceptionAddress() const {
DCHECK(initialized_.is_valid());
return minidump_exception_stream_.ExceptionRecord.ExceptionAddress;
}
const std::vector<uint64_t>& ExceptionSnapshotMinidump::Codes() const {
DCHECK(initialized_.is_valid());
return exception_information_;
}
std::vector<const MemorySnapshot*> ExceptionSnapshotMinidump::ExtraMemory()
const {
DCHECK(initialized_.is_valid());
return std::vector<const MemorySnapshot*>();
}
} // namespace internal
} // namespace crashpad