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032f1aecc2
Add direct includes for things provided transitively by logging.h (or by other headers including logging.h). This is in preparation for cleaning up unnecessary includes of logging.h in header files (so if something depends on logging.h, it needs include it explicitly), and for when Chromium's logging.h no longer includes check.h, check_op.h, and notreached.h. DEPS is also updated to roll mini_chromium to ae14a14ab4 which includes these new header files. Bug: chromium:1031540 Change-Id: I36f646d0a93854989dc602d0dc7139dd7a7b8621 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2250251 Commit-Queue: Hans Wennborg <hans@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
121 lines
4.0 KiB
C++
121 lines
4.0 KiB
C++
// Copyright 2014 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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#ifndef CRASHPAD_SNAPSHOT_MEMORY_SNAPSHOT_GENERIC_H_
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#define CRASHPAD_SNAPSHOT_MEMORY_SNAPSHOT_GENERIC_H_
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#include <stdint.h>
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#include <sys/types.h>
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#include "base/logging.h"
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#include "base/macros.h"
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#include "base/numerics/safe_math.h"
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#include "snapshot/memory_snapshot.h"
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#include "util/misc/address_types.h"
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#include "util/misc/initialization_state_dcheck.h"
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#include "util/process/process_memory.h"
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namespace crashpad {
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namespace internal {
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//! \brief A MemorySnapshot of a memory region in a process on the running
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//! system. Works on multiple platforms by using a platform-specific
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//! ProcessMemory object.
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class MemorySnapshotGeneric final : public MemorySnapshot {
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public:
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MemorySnapshotGeneric() = default;
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~MemorySnapshotGeneric() = default;
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//! \brief Initializes the object.
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//!
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//! Memory is read lazily. No attempt is made to read the memory snapshot data
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//! until Read() is called, and the memory snapshot data is discared when
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//! Read() returns.
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//!
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//! \param[in] process_memory A reader for the process being snapshotted.
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//! \param[in] address The base address of the memory region to snapshot, in
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//! the snapshot process’ address space.
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//! \param[in] size The size of the memory region to snapshot.
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void Initialize(const ProcessMemory* process_memory,
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VMAddress address,
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VMSize size) {
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INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
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process_memory_ = process_memory;
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address_ = address;
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size_ = base::checked_cast<size_t>(size);
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INITIALIZATION_STATE_SET_VALID(initialized_);
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}
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// MemorySnapshot:
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uint64_t Address() const override {
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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 Size() const override {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return size_;
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}
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bool Read(Delegate* delegate) const override {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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if (size_ == 0) {
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return delegate->MemorySnapshotDelegateRead(nullptr, size_);
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}
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std::unique_ptr<uint8_t[]> buffer(new uint8_t[size_]);
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if (!process_memory_->Read(address_, size_, buffer.get())) {
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return false;
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}
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return delegate->MemorySnapshotDelegateRead(buffer.get(), size_);
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}
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const MemorySnapshot* MergeWithOtherSnapshot(
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const MemorySnapshot* other) const override {
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const MemorySnapshotGeneric* other_as_memory_snapshot_concrete =
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reinterpret_cast<const MemorySnapshotGeneric*>(other);
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if (process_memory_ != other_as_memory_snapshot_concrete->process_memory_) {
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LOG(ERROR) << "different process_memory_ for snapshots";
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return nullptr;
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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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auto result = std::make_unique<MemorySnapshotGeneric>();
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result->Initialize(process_memory_, merged.base(), merged.size());
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return result.release();
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}
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private:
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template <class T>
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friend const MemorySnapshot* MergeWithOtherSnapshotImpl(
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const T* self,
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const MemorySnapshot* other);
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const ProcessMemory* process_memory_; // weak
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VMAddress address_;
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size_t size_;
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InitializationStateDcheck initialized_;
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DISALLOW_COPY_AND_ASSIGN(MemorySnapshotGeneric);
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};
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} // namespace internal
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} // namespace crashpad
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#endif // CRASHPAD_SNAPSHOT_GENERIC_MEMORY_SNAPSHOT_GENERIC_H_
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