mirror of https://git.suyu.dev/suyu/suyu
Merge pull request #8682 from lat9nq/dumpy
yuzu qt: Add option to create Windows crash dumpsmerge-requests/60/head
Morph
GitHub
commit
44ccec7846
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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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@ -0,0 +1,19 @@
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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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