96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
|
// Copyright 2017 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 "util/linux/direct_ptrace_connection.h"
|
||
|
|
|
||
|
|
#include <utility>
|
||
|
|
|
||
|
|
#include "util/file/file_io.h"
|
||
|
|
#include "util/linux/proc_task_reader.h"
|
||
|
|
|
||
|
|
namespace crashpad {
|
||
|
|
|
||
|
|
DirectPtraceConnection::DirectPtraceConnection()
|
||
|
|
: PtraceConnection(),
|
||
|
|
attachments_(),
|
||
|
|
memory_(),
|
||
|
|
pid_(-1),
|
||
|
|
ptracer_(/* can_log= */ true),
|
||
|
|
initialized_() {}
|
||
|
|
|
||
|
|
DirectPtraceConnection::~DirectPtraceConnection() {}
|
||
|
|
|
||
|
|
bool DirectPtraceConnection::Initialize(pid_t pid) {
|
||
|
|
INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
|
||
|
|
|
||
|
|
if (!Attach(pid) || !ptracer_.Initialize(pid)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
pid_ = pid;
|
||
|
|
|
||
|
|
INITIALIZATION_STATE_SET_VALID(initialized_);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
pid_t DirectPtraceConnection::GetProcessID() {
|
||
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
||
|
|
return pid_;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool DirectPtraceConnection::Attach(pid_t tid) {
|
||
|
|
std::unique_ptr<ScopedPtraceAttach> attach(new ScopedPtraceAttach);
|
||
|
|
if (!attach->ResetAttach(tid)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
attachments_.push_back(std::move(attach));
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool DirectPtraceConnection::Is64Bit() {
|
||
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
||
|
|
return ptracer_.Is64Bit();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool DirectPtraceConnection::GetThreadInfo(pid_t tid, ThreadInfo* info) {
|
||
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
||
|
|
return ptracer_.GetThreadInfo(tid, info);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool DirectPtraceConnection::ReadFileContents(const base::FilePath& path,
|
||
|
|
std::string* contents) {
|
||
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
||
|
|
return LoggingReadEntireFile(path, contents);
|
||
|
|
}
|
||
|
|
|
||
|
|
ProcessMemoryLinux* DirectPtraceConnection::Memory() {
|
||
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
||
|
|
if (!memory_) {
|
||
|
|
memory_ = std::make_unique<ProcessMemoryLinux>(this);
|
||
|
|
}
|
||
|
|
return memory_.get();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool DirectPtraceConnection::Threads(std::vector<pid_t>* threads) {
|
||
|
|
INITIALIZATION_STATE_DCHECK_VALID(initialized_);
|
||
|
|
return ReadThreadIDs(pid_, threads);
|
||
|
|
}
|
||
|
|
|
||
|
|
ssize_t DirectPtraceConnection::ReadUpTo(VMAddress address,
|
||
|
|
size_t size,
|
||
|
|
void* buffer) {
|
||
|
|
return ptracer_.ReadUpTo(pid_, address, size, static_cast<char*>(buffer));
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace crashpad
|