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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <iostream>
#include <sstream>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/strings/to_string.h"
#include "components/gwp_asan/crash_handler/crash.pb.h"
#include "components/gwp_asan/crash_handler/crash_handler.h"
#include "third_party/crashpad/crashpad/minidump/minidump_extensions.h"
#include "third_party/crashpad/crashpad/snapshot/minidump/process_snapshot_minidump.h"
#include "third_party/crashpad/crashpad/util/file/file_reader.h"
namespace gwp_asan {
std::string ErrorTypeToString(Crash::ErrorType error_type) {
switch (error_type) {
case Crash::USE_AFTER_FREE:
return "USE_AFTER_FREE";
case Crash::BUFFER_UNDERFLOW:
return "BUFFER_UNDERFLOW";
case Crash::BUFFER_OVERFLOW:
return "BUFFER_OVERFLOW";
case Crash::DOUBLE_FREE:
return "DOUBLE_FREE";
case Crash::UNKNOWN:
return "UNKNOWN";
case Crash::FREE_INVALID_ADDRESS:
return "FREE_INVALID_ADDRESS";
default:
return "UNKNOWN";
}
}
std::string AllocatorToString(Crash::Allocator allocator) {
switch (allocator) {
case Crash::MALLOC:
return "MALLOC";
case Crash::PARTITIONALLOC:
return "PARTITIONALLOC";
default:
return "UNKNOWN";
}
}
std::string ModeToString(Crash::Mode mode) {
switch (mode) {
case Crash::CLASSIC:
return "CLASSIC";
case Crash::LIGHTWEIGHT_DETECTOR_BRP:
return "LIGHTWEIGHT_DETECTOR_BRP";
case Crash::LIGHTWEIGHT_DETECTOR_RANDOM:
return "LIGHTWEIGHT_DETECTOR_RANDOM";
case Crash::EXTREME_LIGHTWEIGHT_DETECTOR:
return "EXTREME_LIGHTWEIGHT_DETECTOR";
default:
return "UNKNOWN";
}
}
std::string AllocationInfoToString(const Crash::AllocationInfo& info) {
std::stringstream ss;
ss << "AllocationInfo {" << std::endl;
ss << " stack_trace: [" << std::endl;
for (int i = 0; i < info.stack_trace_size(); ++i) {
ss << " " << info.stack_trace(i)
<< (i < info.stack_trace_size() - 1 ? ", " : "") << std::endl;
}
ss << " ]" << std::endl;
ss << " thread_id: " << info.thread_id() << std::endl;
ss << " }";
return ss.str();
}
std::string CrashToString(const Crash& crash) {
std::stringstream ss;
ss << "Crash {" << std::endl;
if (crash.has_error_type()) {
ss << " error_type: " << ErrorTypeToString(crash.error_type())
<< std::endl;
}
if (crash.has_allocation_address()) {
ss << " allocation_address: " << crash.allocation_address() << std::endl;
}
if (crash.has_allocation_size()) {
ss << " allocation_size: " << crash.allocation_size() << std::endl;
}
if (crash.has_allocation()) {
ss << " allocation: " << AllocationInfoToString(crash.allocation())
<< std::endl;
}
if (crash.has_deallocation()) {
ss << " deallocation: " << AllocationInfoToString(crash.deallocation())
<< std::endl;
}
if (crash.has_region_start()) {
ss << " region_start: " << crash.region_start() << std::endl;
}
if (crash.has_region_size()) {
ss << " region_size: " << crash.region_size() << std::endl;
}
if (crash.has_free_invalid_address()) {
ss << " free_invalid_address: " << crash.free_invalid_address()
<< std::endl;
}
if (crash.has_missing_metadata()) {
ss << " missing_metadata: " << base::ToString(crash.missing_metadata())
<< std::endl;
}
if (crash.has_internal_error()) {
ss << " internal_error: " << crash.internal_error() << std::endl;
}
if (crash.has_allocator()) {
ss << " allocator: " << AllocatorToString(crash.allocator()) << std::endl;
}
if (crash.has_mode()) {
ss << " mode: " << ModeToString(crash.mode()) << std::endl;
}
ss << "}";
return ss.str();
}
} // namespace gwp_asan
int main(int argc, const char* argv[]) {
base::CommandLine::Init(argc, argv);
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
base::CommandLine::StringVector args = command_line.GetArgs();
if (args.size() != 1) {
std::cerr << "Usage: dump_gwp_asan <minidump_path>" << std::endl;
return 1;
}
base::FilePath path(args[0]);
crashpad::FileReader minidump_file_reader;
if (!minidump_file_reader.Open(path)) {
std::cerr << "Can't open the minidump." << std::endl;
return 1;
}
crashpad::ProcessSnapshotMinidump minidump_process_snapshot;
if (!minidump_process_snapshot.Initialize(&minidump_file_reader)) {
std::cerr << "Can't initialize the process snapshot." << std::endl;
return 1;
}
gwp_asan::Crash proto;
bool found = false;
auto custom_streams = minidump_process_snapshot.CustomMinidumpStreams();
for (auto* stream : custom_streams) {
if (stream->stream_type() ==
static_cast<crashpad::MinidumpStreamType>(
gwp_asan::internal::kGwpAsanMinidumpStreamType)) {
if (!proto.ParseFromArray(stream->data().data(), stream->data().size())) {
std::cerr << "Couldn't parse the GWP-ASan stream." << std::endl;
return 1;
}
found = true;
break;
}
}
if (!found) {
std::cerr << "Couldn't find the GWP-ASan stream." << std::endl;
}
std::cout << gwp_asan::CrashToString(proto) << std::endl;
return 0;
}
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