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;6GHS2R1rg}yamv,K-0 ~Zx/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "porting.h"
#include "debug.h"
#include "exceptions.h"
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <map>
#include <sstream>
#include <thread>
#include "threading/mutex_auto_lock.h"
#include "config.h"
#ifdef _MSC_VER
#include <dbghelp.h>
#include "version.h"
#include "filesys.h"
#endif
#if USE_CURSES
#include "terminal_chat_console.h"
#endif
/*
Assert
*/
void sanity_check_fn(const char *assertion, const char *file,
unsigned int line, const char *function)
{
#if USE_CURSES
g_term_console.stopAndWaitforThread();
#endif
errorstream << std::endl << "In thread " << std::hex
<< std::this_thread::get_id() << ":" << std::endl;
errorstream << file << ":" << line << ": " << function
<< ": An engine assumption '" << assertion << "' failed." << std::endl;
abort();
}
void fatal_error_fn(const char *msg, const char *file,
unsigned int line, const char *function)
{
#if USE_CURSES
g_term_console.stopAndWaitforThread();
#endif
errorstream << std::endl << "In thread " << std::hex
<< std::this_thread::get_id() << ":" << std::endl;
errorstream << file << ":" << line << ": " << function
<< ": A fatal error occured: " << msg << std::endl;
abort();
}
#ifdef _MSC_VER
const char *Win32ExceptionCodeToString(DWORD exception_code)
{
switch (exception_code) {
case EXCEPTION_ACCESS_VIOLATION:
return "Access violation";
case EXCEPTION_DATATYPE_MISALIGNMENT:
return "Misaligned data access";
case EXCEPTION_BREAKPOINT:
return "Breakpoint reached";
case EXCEPTION_SINGLE_STEP:
return "Single debug step";
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
return "Array access out of bounds";
case EXCEPTION_FLT_DENORMAL_OPERAND:
return "Denormal floating point operand";
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
return "Floating point division by zero";
case EXCEPTION_FLT_INEXACT_RESULT:
return "Inaccurate floating point result";
case EXCEPTION_FLT_INVALID_OPERATION:
return "Invalid floating point operation";
case EXCEPTION_FLT_OVERFLOW:
return "Floating point exponent overflow";
case EXCEPTION_FLT_STACK_CHECK:
return "Floating point stack overflow or underflow";
case EXCEPTION_FLT_UNDERFLOW:
return "Floating point exponent underflow";
case EXCEPTION_INT_DIVIDE_BY_ZERO:
return "Integer division by zero";
case EXCEPTION_INT_OVERFLOW:
return "Integer overflow";
case EXCEPTION_PRIV_INSTRUCTION:
return "Privileged instruction executed";
case EXCEPTION_IN_PAGE_ERROR:
return "Could not access or load page";
case EXCEPTION_ILLEGAL_INSTRUCTION:
return "Illegal instruction encountered";
case EXCEPTION_NONCONTINUABLE_EXCEPTION:
return "Attempted to continue after fatal exception";
case EXCEPTION_STACK_OVERFLOW:
return "Stack overflow";
case EXCEPTION_INVALID_DISPOSITION:
return "Invalid disposition returned to the exception dispatcher";
case EXCEPTION_GUARD_PAGE:
return "Attempted guard page access";
case EXCEPTION_INVALID_HANDLE:
return "Invalid handle";
}
return "Unknown exception";
}
long WINAPI Win32ExceptionHandler(struct _EXCEPTION_POINTERS *pExceptInfo)
{
char buf[512];
MINIDUMP_EXCEPTION_INFORMATION mdei;
MINIDUMP_USER_STREAM_INFORMATION mdusi;
MINIDUMP_USER_STREAM mdus;
bool minidump_created = false;
std::string dumpfile = porting::path_user + DIR_DELIM PROJECT_NAME ".dmp";
std::string version_str(PROJECT_NAME " ");
version_str += g_version_hash;
HANDLE hFile = CreateFileA(dumpfile.c_str(), GENERIC_WRITE,
FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
goto minidump_failed;
if (SetEndOfFile(hFile) == FALSE)
goto minidump_failed;
mdei.ClientPointers = NULL;
mdei.ExceptionPointers = pExceptInfo;
mdei.ThreadId = GetCurrentThreadId();
mdus.Type = CommentStreamA;
mdus.BufferSize = version_str.size();
mdus.Buffer = (PVOID)version_str.c_str();
mdusi.UserStreamArray = &mdus;
mdusi.UserStreamCount = 1;
if (MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile,
MiniDumpNormal, &mdei, &mdusi, NULL) == FALSE)
goto minidump_failed;
minidump_created = true;
minidump_failed:
CloseHandle(hFile);
DWORD excode = pExceptInfo->ExceptionRecord->ExceptionCode;
_snprintf(buf, sizeof(buf),
" >> === FATAL ERROR ===\n"
" >> %s (Exception 0x%08X) at 0x%p\n",
Win32ExceptionCodeToString(excode), excode,
pExceptInfo->ExceptionRecord->ExceptionAddress);
dstream << buf;
if (minidump_created)
dstream << " >> Saved dump to " << dumpfile << std::endl;
else
dstream << " >> Failed to save dump" << std::endl;
return EXCEPTION_EXECUTE_HANDLER;
}
#endif
void debug_set_exception_handler()
{
#ifdef _MSC_VER
SetUnhandledExceptionFilter(Win32ExceptionHandler);
#endif
}