liamwhite
GitHub
commit
eec3d356b6
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Subproject commit c89f9dddc793f19910ef06c13e4fd240da4e7a59
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Subproject commit 7da378033a7764f955516f75194856d87bbcd7a5
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Subproject commit 0df09e2f6b61c2d7ad2f2053d4f020a5c33e0378
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// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <algorithm>
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#include <ranges>
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#if defined(_WIN32)
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#include <client/windows/handler/exception_handler.h>
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#elif defined(__linux__)
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#include <client/linux/handler/exception_handler.h>
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#else
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#error Minidump creation not supported on this platform
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#endif
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#include "common/fs/fs_paths.h"
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#include "common/fs/path_util.h"
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#include "yuzu/breakpad.h"
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namespace Breakpad {
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static void PruneDumpDirectory(const std::filesystem::path& dump_path) {
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// Code in this function should be exception-safe.
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struct Entry {
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std::filesystem::path path;
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std::filesystem::file_time_type last_write_time;
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};
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std::vector<Entry> existing_dumps;
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// Get existing entries.
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std::error_code ec;
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std::filesystem::directory_iterator dir(dump_path, ec);
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for (auto& entry : dir) {
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if (entry.is_regular_file()) {
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existing_dumps.push_back(Entry{
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.path = entry.path(),
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.last_write_time = entry.last_write_time(ec),
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});
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}
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}
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// Sort descending by creation date.
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std::ranges::stable_sort(existing_dumps, [](const auto& a, const auto& b) {
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return a.last_write_time > b.last_write_time;
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});
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// Delete older dumps.
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for (size_t i = 5; i < existing_dumps.size(); i++) {
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std::filesystem::remove(existing_dumps[i].path, ec);
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}
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}
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#if defined(__linux__)
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[[noreturn]] bool DumpCallback(const google_breakpad::MinidumpDescriptor& descriptor, void* context,
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bool succeeded) {
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// Prevent time- and space-consuming core dumps from being generated, as we have
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// already generated a minidump and a core file will not be useful anyway.
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_exit(1);
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}
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#endif
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void InstallCrashHandler() {
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// Write crash dumps to profile directory.
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const auto dump_path = GetYuzuPath(Common::FS::YuzuPath::CrashDumpsDir);
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PruneDumpDirectory(dump_path);
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#if defined(_WIN32)
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// TODO: If we switch to MinGW builds for Windows, this needs to be wrapped in a C API.
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static google_breakpad::ExceptionHandler eh{dump_path, nullptr, nullptr, nullptr,
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google_breakpad::ExceptionHandler::HANDLER_ALL};
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#elif defined(__linux__)
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static google_breakpad::MinidumpDescriptor descriptor{dump_path};
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static google_breakpad::ExceptionHandler eh{descriptor, nullptr, DumpCallback,
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nullptr, true, -1};
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#endif
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}
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} // namespace Breakpad
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// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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namespace Breakpad {
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void InstallCrashHandler();
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}
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@ -1,202 +0,0 @@
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// SPDX-FileCopyrightText: 2022 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <cstdio>
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#include <cstring>
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#include <ctime>
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#include <filesystem>
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#include <fmt/format.h>
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#include <windows.h>
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#include "yuzu/mini_dump.h"
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#include "yuzu/startup_checks.h"
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// dbghelp.h must be included after windows.h
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#include <dbghelp.h>
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namespace MiniDump {
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void CreateMiniDump(HANDLE process_handle, DWORD process_id, MINIDUMP_EXCEPTION_INFORMATION* info,
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EXCEPTION_POINTERS* pep) {
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char file_name[255];
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const std::time_t the_time = std::time(nullptr);
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std::strftime(file_name, 255, "yuzu-crash-%Y%m%d%H%M%S.dmp", std::localtime(&the_time));
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// Open the file
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HANDLE file_handle = CreateFileA(file_name, GENERIC_READ | GENERIC_WRITE, 0, nullptr,
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CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
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if (file_handle == nullptr || file_handle == INVALID_HANDLE_VALUE) {
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fmt::print(stderr, "CreateFileA failed. Error: {}", GetLastError());
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return;
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}
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// Create the minidump
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const MINIDUMP_TYPE dump_type = MiniDumpNormal;
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const bool write_dump_status = MiniDumpWriteDump(process_handle, process_id, file_handle,
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dump_type, (pep != 0) ? info : 0, 0, 0);
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if (write_dump_status) {
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fmt::print(stderr, "MiniDump created: {}", file_name);
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} else {
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fmt::print(stderr, "MiniDumpWriteDump failed. Error: {}", GetLastError());
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}
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// Close the file
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CloseHandle(file_handle);
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}
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void DumpFromDebugEvent(DEBUG_EVENT& deb_ev, PROCESS_INFORMATION& pi) {
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EXCEPTION_RECORD& record = deb_ev.u.Exception.ExceptionRecord;
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HANDLE thread_handle = OpenThread(THREAD_GET_CONTEXT, false, deb_ev.dwThreadId);
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if (thread_handle == nullptr) {
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fmt::print(stderr, "OpenThread failed ({})", GetLastError());
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return;
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}
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// Get child process context
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CONTEXT context = {};
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context.ContextFlags = CONTEXT_ALL;
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if (!GetThreadContext(thread_handle, &context)) {
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fmt::print(stderr, "GetThreadContext failed ({})", GetLastError());
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return;
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}
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// Create exception pointers for minidump
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EXCEPTION_POINTERS ep;
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ep.ExceptionRecord = &record;
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ep.ContextRecord = &context;
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MINIDUMP_EXCEPTION_INFORMATION info;
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info.ThreadId = deb_ev.dwThreadId;
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info.ExceptionPointers = &ep;
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info.ClientPointers = false;
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CreateMiniDump(pi.hProcess, pi.dwProcessId, &info, &ep);
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if (CloseHandle(thread_handle) == 0) {
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fmt::print(stderr, "error: CloseHandle(thread_handle) failed ({})", GetLastError());
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}
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}
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bool SpawnDebuggee(const char* arg0, PROCESS_INFORMATION& pi) {
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std::memset(&pi, 0, sizeof(pi));
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// Don't debug if we are already being debugged
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if (IsDebuggerPresent()) {
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return false;
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}
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if (!SpawnChild(arg0, &pi, 0)) {
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fmt::print(stderr, "warning: continuing without crash dumps");
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return false;
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}
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const bool can_debug = DebugActiveProcess(pi.dwProcessId);
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if (!can_debug) {
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fmt::print(stderr,
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"warning: DebugActiveProcess failed ({}), continuing without crash dumps",
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GetLastError());
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return false;
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}
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return true;
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}
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static const char* ExceptionName(DWORD exception) {
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switch (exception) {
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case EXCEPTION_ACCESS_VIOLATION:
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return "EXCEPTION_ACCESS_VIOLATION";
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case EXCEPTION_DATATYPE_MISALIGNMENT:
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return "EXCEPTION_DATATYPE_MISALIGNMENT";
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case EXCEPTION_BREAKPOINT:
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return "EXCEPTION_BREAKPOINT";
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case EXCEPTION_SINGLE_STEP:
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return "EXCEPTION_SINGLE_STEP";
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case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
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return "EXCEPTION_ARRAY_BOUNDS_EXCEEDED";
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case EXCEPTION_FLT_DENORMAL_OPERAND:
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return "EXCEPTION_FLT_DENORMAL_OPERAND";
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case EXCEPTION_FLT_DIVIDE_BY_ZERO:
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return "EXCEPTION_FLT_DIVIDE_BY_ZERO";
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case EXCEPTION_FLT_INEXACT_RESULT:
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return "EXCEPTION_FLT_INEXACT_RESULT";
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case EXCEPTION_FLT_INVALID_OPERATION:
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return "EXCEPTION_FLT_INVALID_OPERATION";
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case EXCEPTION_FLT_OVERFLOW:
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return "EXCEPTION_FLT_OVERFLOW";
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case EXCEPTION_FLT_STACK_CHECK:
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return "EXCEPTION_FLT_STACK_CHECK";
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case EXCEPTION_FLT_UNDERFLOW:
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return "EXCEPTION_FLT_UNDERFLOW";
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case EXCEPTION_INT_DIVIDE_BY_ZERO:
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return "EXCEPTION_INT_DIVIDE_BY_ZERO";
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case EXCEPTION_INT_OVERFLOW:
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return "EXCEPTION_INT_OVERFLOW";
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case EXCEPTION_PRIV_INSTRUCTION:
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return "EXCEPTION_PRIV_INSTRUCTION";
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case EXCEPTION_IN_PAGE_ERROR:
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return "EXCEPTION_IN_PAGE_ERROR";
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case EXCEPTION_ILLEGAL_INSTRUCTION:
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return "EXCEPTION_ILLEGAL_INSTRUCTION";
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case EXCEPTION_NONCONTINUABLE_EXCEPTION:
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return "EXCEPTION_NONCONTINUABLE_EXCEPTION";
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case EXCEPTION_STACK_OVERFLOW:
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return "EXCEPTION_STACK_OVERFLOW";
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case EXCEPTION_INVALID_DISPOSITION:
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return "EXCEPTION_INVALID_DISPOSITION";
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case EXCEPTION_GUARD_PAGE:
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return "EXCEPTION_GUARD_PAGE";
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case EXCEPTION_INVALID_HANDLE:
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return "EXCEPTION_INVALID_HANDLE";
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default:
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return "unknown exception type";
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}
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}
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void DebugDebuggee(PROCESS_INFORMATION& pi) {
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DEBUG_EVENT deb_ev = {};
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while (deb_ev.dwDebugEventCode != EXIT_PROCESS_DEBUG_EVENT) {
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const bool wait_success = WaitForDebugEvent(&deb_ev, INFINITE);
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if (!wait_success) {
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fmt::print(stderr, "error: WaitForDebugEvent failed ({})", GetLastError());
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return;
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}
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switch (deb_ev.dwDebugEventCode) {
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case OUTPUT_DEBUG_STRING_EVENT:
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case CREATE_PROCESS_DEBUG_EVENT:
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case CREATE_THREAD_DEBUG_EVENT:
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case EXIT_PROCESS_DEBUG_EVENT:
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case EXIT_THREAD_DEBUG_EVENT:
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case LOAD_DLL_DEBUG_EVENT:
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case RIP_EVENT:
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case UNLOAD_DLL_DEBUG_EVENT:
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// Continue on all other debug events
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ContinueDebugEvent(deb_ev.dwProcessId, deb_ev.dwThreadId, DBG_CONTINUE);
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break;
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case EXCEPTION_DEBUG_EVENT:
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EXCEPTION_RECORD& record = deb_ev.u.Exception.ExceptionRecord;
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// We want to generate a crash dump if we are seeing the same exception again.
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if (!deb_ev.u.Exception.dwFirstChance) {
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fmt::print(stderr, "Creating MiniDump on ExceptionCode: 0x{:08x} {}\n",
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record.ExceptionCode, ExceptionName(record.ExceptionCode));
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DumpFromDebugEvent(deb_ev, pi);
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}
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// Continue without handling the exception.
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// Lets the debuggee use its own exception handler.
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// - If one does not exist, we will see the exception once more where we make a minidump
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// for. Then when it reaches here again, yuzu will probably crash.
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// - DBG_CONTINUE on an exception that the debuggee does not handle can set us up for an
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// infinite loop of exceptions.
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ContinueDebugEvent(deb_ev.dwProcessId, deb_ev.dwThreadId, DBG_EXCEPTION_NOT_HANDLED);
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break;
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}
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}
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}
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} // namespace MiniDump
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@ -1,19 +0,0 @@
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// SPDX-FileCopyrightText: 2022 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <windows.h>
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#include <dbghelp.h>
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namespace MiniDump {
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void CreateMiniDump(HANDLE process_handle, DWORD process_id, MINIDUMP_EXCEPTION_INFORMATION* info,
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EXCEPTION_POINTERS* pep);
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void DumpFromDebugEvent(DEBUG_EVENT& deb_ev, PROCESS_INFORMATION& pi);
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bool SpawnDebuggee(const char* arg0, PROCESS_INFORMATION& pi);
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void DebugDebuggee(PROCESS_INFORMATION& pi);
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} // namespace MiniDump
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Loading…
Reference in New Issue