bdea3bb56b
It is expensive to keep the non-protobuf path around and it hasn't been used for an entire release without anyone noticing, so remove it. Create new end-to-end unit tests that cover tests of the non-proto code paths that are being deleted. Bug: 197981919 Test: Unit tests pass. Change-Id: Ia1c45572300bd63e5f196ad61e5e5386830c8ece
124 lines
4 KiB
C++
124 lines
4 KiB
C++
/*
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* Copyright (C) 2012-2014 The Android Open Source Project
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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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*/
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#define LOG_TAG "DEBUG"
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#include "libdebuggerd/tombstone.h"
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#include <errno.h>
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#include <signal.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <memory>
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#include <string>
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#include <android-base/file.h>
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#include <android-base/unique_fd.h>
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#include <android/log.h>
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#include <async_safe/log.h>
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#include <log/log.h>
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#include <private/android_filesystem_config.h>
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#include <unwindstack/Memory.h>
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#include <unwindstack/Regs.h>
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#include <unwindstack/Unwinder.h>
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#include "libdebuggerd/backtrace.h"
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#include "libdebuggerd/open_files_list.h"
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#include "libdebuggerd/utility.h"
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#include "util.h"
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#include "tombstone.pb.h"
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using android::base::unique_fd;
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using namespace std::literals::string_literals;
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void engrave_tombstone_ucontext(int tombstone_fd, int proto_fd, uint64_t abort_msg_address,
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siginfo_t* siginfo, ucontext_t* ucontext) {
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pid_t uid = getuid();
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pid_t pid = getpid();
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pid_t tid = gettid();
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log_t log;
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log.current_tid = tid;
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log.crashed_tid = tid;
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log.tfd = tombstone_fd;
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log.amfd_data = nullptr;
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std::string thread_name = get_thread_name(tid);
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std::vector<std::string> command_line = get_command_line(pid);
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std::unique_ptr<unwindstack::Regs> regs(
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unwindstack::Regs::CreateFromUcontext(unwindstack::Regs::CurrentArch(), ucontext));
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std::string selinux_label;
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android::base::ReadFileToString("/proc/self/attr/current", &selinux_label);
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std::map<pid_t, ThreadInfo> threads;
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threads[tid] = ThreadInfo{
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.registers = std::move(regs),
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.uid = uid,
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.tid = tid,
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.thread_name = std::move(thread_name),
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.pid = pid,
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.command_line = std::move(command_line),
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.selinux_label = std::move(selinux_label),
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.siginfo = siginfo,
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};
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unwindstack::UnwinderFromPid unwinder(kMaxFrames, pid, unwindstack::Regs::CurrentArch());
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auto process_memory =
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unwindstack::Memory::CreateProcessMemoryCached(getpid());
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unwinder.SetProcessMemory(process_memory);
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if (!unwinder.Init()) {
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async_safe_fatal("failed to init unwinder object");
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}
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ProcessInfo process_info;
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process_info.abort_msg_address = abort_msg_address;
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engrave_tombstone(unique_fd(dup(tombstone_fd)), unique_fd(dup(proto_fd)), &unwinder, threads, tid,
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process_info, nullptr, nullptr);
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}
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void engrave_tombstone(unique_fd output_fd, unique_fd proto_fd, unwindstack::Unwinder* unwinder,
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const std::map<pid_t, ThreadInfo>& threads, pid_t target_thread,
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const ProcessInfo& process_info, OpenFilesList* open_files,
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std::string* amfd_data) {
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// Don't copy log messages to tombstone unless this is a development device.
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Tombstone tombstone;
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engrave_tombstone_proto(&tombstone, unwinder, threads, target_thread, process_info, open_files);
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if (proto_fd != -1) {
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if (!tombstone.SerializeToFileDescriptor(proto_fd.get())) {
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async_safe_format_log(ANDROID_LOG_ERROR, LOG_TAG, "failed to write proto tombstone: %s",
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strerror(errno));
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}
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}
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log_t log;
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log.current_tid = target_thread;
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log.crashed_tid = target_thread;
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log.tfd = output_fd.get();
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log.amfd_data = amfd_data;
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tombstone_proto_to_text(tombstone, [&log](const std::string& line, bool should_log) {
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_LOG(&log, should_log ? logtype::HEADER : logtype::LOGS, "%s\n", line.c_str());
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});
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}
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