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cc166d71f4
This is a follow-up to c8a016b99d97, following the post-landing discussion at https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1393921/5#message-2058541d8c4505d20a990ab7734cd758e437a5f7 base::size, and std::size that will eventually replace it when C++17 is assured, does not allow the size of non-static data members to be taken in constant expression context. The remaining uses of ArraySize are in: minidump/minidump_exception_writer.cc (×1) minidump/minidump_system_info_writer.cc (×2, also uses base::size) snapshot/cpu_context.cc (×4, also uses base::size) util/misc/arraysize_test.cc (×10, of course) The first of these occurs when initializing a constexpr variable. All others are in expressions used with static_assert. Includes: Update mini_chromium to 737433ebade4d446643c6c07daae02a67e8deccao f701716d9546 Add Windows ARM64 build target to mini_chromium 87a95a3d6ac2 Remove the arraysize macro 1f7255ead1f7 Placate MSVC in areas of base::size usage 737433ebade4 Add cast Bug: chromium:837308 Change-Id: I6a5162654461b1bdd9b7b6864d0d71a734bcde19 Reviewed-on: https://chromium-review.googlesource.com/c/1396108 Commit-Queue: Mark Mentovai <mark@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
123 lines
3.3 KiB
C++
123 lines
3.3 KiB
C++
// Copyright 2017 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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#include "util/linux/direct_ptrace_connection.h"
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#include <stdio.h>
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#include <utility>
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#include "base/logging.h"
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#include "base/stl_util.h"
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#include "base/strings/string_number_conversions.h"
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#include "util/file/directory_reader.h"
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#include "util/file/file_io.h"
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#include "util/misc/as_underlying_type.h"
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namespace crashpad {
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DirectPtraceConnection::DirectPtraceConnection()
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: PtraceConnection(),
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attachments_(),
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memory_(),
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pid_(-1),
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ptracer_(/* can_log= */ true),
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initialized_() {}
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DirectPtraceConnection::~DirectPtraceConnection() {}
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bool DirectPtraceConnection::Initialize(pid_t pid) {
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INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
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if (!Attach(pid) || !ptracer_.Initialize(pid)) {
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return false;
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}
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pid_ = pid;
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if (!memory_.Initialize(pid)) {
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return false;
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}
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INITIALIZATION_STATE_SET_VALID(initialized_);
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return true;
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}
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pid_t DirectPtraceConnection::GetProcessID() {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return pid_;
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}
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bool DirectPtraceConnection::Attach(pid_t tid) {
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std::unique_ptr<ScopedPtraceAttach> attach(new ScopedPtraceAttach);
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if (!attach->ResetAttach(tid)) {
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return false;
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}
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attachments_.push_back(std::move(attach));
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return true;
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}
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bool DirectPtraceConnection::Is64Bit() {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return ptracer_.Is64Bit();
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}
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bool DirectPtraceConnection::GetThreadInfo(pid_t tid, ThreadInfo* info) {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return ptracer_.GetThreadInfo(tid, info);
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}
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bool DirectPtraceConnection::ReadFileContents(const base::FilePath& path,
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std::string* contents) {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return LoggingReadEntireFile(path, contents);
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}
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ProcessMemory* DirectPtraceConnection::Memory() {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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return &memory_;
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}
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bool DirectPtraceConnection::Threads(std::vector<pid_t>* threads) {
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INITIALIZATION_STATE_DCHECK_VALID(initialized_);
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DCHECK(threads->empty());
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char path[32];
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snprintf(path, base::size(path), "/proc/%d/task", pid_);
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DirectoryReader reader;
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if (!reader.Open(base::FilePath(path))) {
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return false;
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}
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std::vector<pid_t> local_threads;
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base::FilePath tid_str;
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DirectoryReader::Result result;
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while ((result = reader.NextFile(&tid_str)) ==
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DirectoryReader::Result::kSuccess) {
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pid_t tid;
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if (!base::StringToInt(tid_str.value(), &tid)) {
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LOG(ERROR) << "format error";
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continue;
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}
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local_threads.push_back(tid);
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}
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DCHECK_EQ(AsUnderlyingType(result),
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AsUnderlyingType(DirectoryReader::Result::kNoMoreFiles));
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threads->swap(local_threads);
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return true;
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}
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} // namespace crashpad
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