crashpad/util/linux/direct_ptrace_connection.cc
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

96 lines
2.8 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.
#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