crashpad/util/linux/direct_ptrace_connection.h
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

76 lines
2.5 KiB
C++

// Copyright 2017 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.
#ifndef CRASHPAD_UTIL_LINUX_DIRECT_PTRACE_CONNECTION_H_
#define CRASHPAD_UTIL_LINUX_DIRECT_PTRACE_CONNECTION_H_
#include <sys/types.h>
#include <memory>
#include <vector>
#include "util/linux/ptrace_connection.h"
#include "util/linux/ptracer.h"
#include "util/linux/scoped_ptrace_attach.h"
#include "util/misc/initialization_state_dcheck.h"
#include "util/process/process_memory_linux.h"
namespace crashpad {
//! \brief Manages a direct `ptrace` connection to a process.
//!
//! This class is used when the current process has `ptrace` capabilities for
//! the target process.
class DirectPtraceConnection : public PtraceConnection {
public:
DirectPtraceConnection();
DirectPtraceConnection(const DirectPtraceConnection&) = delete;
DirectPtraceConnection& operator=(const DirectPtraceConnection&) = delete;
~DirectPtraceConnection();
//! \brief Initializes this connection for the process whose process ID is
//! \a pid.
//!
//! The main thread of the process is automatically attached by this call.
//!
//! \param[in] pid The process ID of the process to connect to.
//! \return `true` on success. `false` on failure with a message logged.
bool Initialize(pid_t pid);
// PtraceConnection:
pid_t GetProcessID() override;
bool Attach(pid_t tid) override;
bool Is64Bit() override;
bool GetThreadInfo(pid_t tid, ThreadInfo* info) override;
bool ReadFileContents(const base::FilePath& path,
std::string* contents) override;
ProcessMemoryLinux* Memory() override;
bool Threads(std::vector<pid_t>* threads) override;
ssize_t ReadUpTo(VMAddress, size_t size, void* buffer) override;
private:
std::vector<std::unique_ptr<ScopedPtraceAttach>> attachments_;
std::unique_ptr<ProcessMemoryLinux> memory_;
pid_t pid_;
Ptracer ptracer_;
InitializationStateDcheck initialized_;
};
} // namespace crashpad
#endif // CRASHPAD_UTIL_LINUX_DIRECT_PTRACE_CONNECTION_H_