crashpad/snapshot/ios/memory_snapshot_ios.h
Justin Cohen 4e2a190ad6 [ios] Bring up first draft thread and memory snapshot.
Gather most of the necessary information for the thread snapshot.

Note that:
 - The 'capture' portion of this CL will be moved out of the snapshot
   interface and into a separate in-process dump to disk location.
 - All of the pointer dereferences need to be wrapped in vm_read.
 - The read-fast-and-dump logic in thread_snapshot may end up in a
   different file completely, but until we pick a
   serialization/deserialization method, keep it as-is.


Change-Id: I80ba323cb6a59ac0dd1bba9150d047ba83cc4dad
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2085572
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
2020-03-20 17:26:49 +00:00

64 lines
2.0 KiB
C++

// Copyright 2020 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.
#ifndef CRASHPAD_SNAPSHOT_IOS_MEMORY_SNAPSHOT_IOS_H_
#define CRASHPAD_SNAPSHOT_IOS_MEMORY_SNAPSHOT_IOS_H_
#include "base/macros.h"
#include "snapshot/memory_snapshot.h"
#include "util/misc/address_types.h"
#include "util/misc/initialization_state_dcheck.h"
namespace crashpad {
namespace internal {
//! \brief A MemorySnapshot of a memory region.
class MemorySnapshotIOS final : public MemorySnapshot {
public:
MemorySnapshotIOS() = default;
~MemorySnapshotIOS() = default;
//! \brief Initializes the object.
//!
//! \param[in] address The base address of the memory region to snapshot.
//! \param[in] size The size of the memory region to snapshot.
void Initialize(vm_address_t address, vm_size_t size);
// MemorySnapshot:
uint64_t Address() const override;
size_t Size() const override;
bool Read(Delegate* delegate) const override;
const MemorySnapshot* MergeWithOtherSnapshot(
const MemorySnapshot* other) const override;
private:
template <class T>
friend const MemorySnapshot* MergeWithOtherSnapshotImpl(
const T* self,
const MemorySnapshot* other);
// TODO(justincohen): This is temporary until deserialization is worked out.
std::unique_ptr<uint8_t[]> buffer_;
vm_address_t address_;
vm_size_t size_;
InitializationStateDcheck initialized_;
DISALLOW_COPY_AND_ASSIGN(MemorySnapshotIOS);
};
} // namespace internal
} // namespace crashpad
#endif // CRASHPAD_SNAPSHOT_IOS_MEMORY_SNAPSHOT_IOS_H_