167 lines
4.2 KiB
C++
167 lines
4.2 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 GPL Source Code
|
|
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
|
|
|
|
Doom 3 Source Code is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Doom 3 Source Code 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
|
|
|
|
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
|
|
|
|
===========================================================================
|
|
*/
|
|
#include "../../idlib/precompiled.h"
|
|
#include "posix_public.h"
|
|
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
const int siglist[] = {
|
|
SIGHUP,
|
|
SIGQUIT,
|
|
SIGILL,
|
|
SIGTRAP,
|
|
SIGIOT,
|
|
SIGBUS,
|
|
SIGFPE,
|
|
SIGSEGV,
|
|
SIGPIPE,
|
|
SIGABRT,
|
|
// SIGTTIN,
|
|
// SIGTTOU,
|
|
-1
|
|
};
|
|
|
|
const char *signames[] = {
|
|
"SIGHUP",
|
|
"SIGQUIT",
|
|
"SIGILL",
|
|
"SIGTRAP",
|
|
"SIGIOT",
|
|
"SIGBUS",
|
|
"SIGFPE",
|
|
"SIGSEGV",
|
|
"SIGPIPE",
|
|
"SIGABRT",
|
|
// "SIGTTIN",
|
|
// "SIGTTOUT"
|
|
};
|
|
|
|
static char fatalError[ 1024 ];
|
|
|
|
/*
|
|
================
|
|
Posix_ClearSigs
|
|
================
|
|
*/
|
|
void Posix_ClearSigs( ) {
|
|
struct sigaction action;
|
|
int i;
|
|
|
|
/* Set up the structure */
|
|
action.sa_handler = SIG_DFL;
|
|
sigemptyset( &action.sa_mask );
|
|
action.sa_flags = 0;
|
|
|
|
i = 0;
|
|
while ( siglist[ i ] != -1 ) {
|
|
if ( sigaction( siglist[ i ], &action, NULL ) != 0 ) {
|
|
Sys_Printf( "Failed to reset %s handler: %s\n", signames[ i ], strerror( errno ) );
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
sig_handler
|
|
================
|
|
*/
|
|
static void sig_handler( int signum, siginfo_t *info, void *context ) {
|
|
static bool double_fault = false;
|
|
|
|
if ( double_fault ) {
|
|
Sys_Printf( "double fault %s, bailing out\n", strsignal( signum ) );
|
|
Posix_Exit( signum );
|
|
}
|
|
|
|
double_fault = true;
|
|
|
|
// NOTE: see sigaction man page, could verbose the whole siginfo_t and print human readable si_code
|
|
Sys_Printf( "signal caught: %s\nsi_code %d\n", strsignal( signum ), info->si_code );
|
|
|
|
#ifndef ID_BT_STUB
|
|
Sys_Printf( "callstack:\n%s", Sys_GetCallStackCurStr( 30 ) );
|
|
#endif
|
|
|
|
if ( fatalError[ 0 ] ) {
|
|
Sys_Printf( "Was in fatal error shutdown: %s\n", fatalError );
|
|
}
|
|
|
|
Sys_Printf( "Trying to exit gracefully..\n" );
|
|
|
|
Posix_SetExit( signum );
|
|
|
|
common->Quit();
|
|
}
|
|
|
|
/*
|
|
================
|
|
Posix_InitSigs
|
|
================
|
|
*/
|
|
void Posix_InitSigs( ) {
|
|
struct sigaction action;
|
|
int i;
|
|
|
|
fatalError[0] = '\0';
|
|
|
|
/* Set up the structure */
|
|
action.sa_sigaction = sig_handler;
|
|
sigemptyset( &action.sa_mask );
|
|
action.sa_flags = SA_SIGINFO | SA_NODEFER;
|
|
|
|
i = 0;
|
|
while ( siglist[ i ] != -1 ) {
|
|
if ( siglist[ i ] == SIGFPE ) {
|
|
action.sa_sigaction = Sys_FPE_handler;
|
|
if ( sigaction( siglist[ i ], &action, NULL ) != 0 ) {
|
|
Sys_Printf( "Failed to set SIGFPE handler: %s\n", strerror( errno ) );
|
|
}
|
|
action.sa_sigaction = sig_handler;
|
|
} else if ( sigaction( siglist[ i ], &action, NULL ) != 0 ) {
|
|
Sys_Printf( "Failed to set %s handler: %s\n", signames[ i ], strerror( errno ) );
|
|
}
|
|
i++;
|
|
}
|
|
|
|
// if the process is backgrounded (running non interactively)
|
|
// then SIGTTIN or SIGTOU could be emitted, if not caught, turns into a SIGSTP
|
|
signal( SIGTTIN, SIG_IGN );
|
|
signal( SIGTTOU, SIG_IGN );
|
|
}
|
|
|
|
/*
|
|
==================
|
|
Sys_SetFatalError
|
|
==================
|
|
*/
|
|
void Sys_SetFatalError( const char *error ) {
|
|
strncpy( fatalError, error, sizeof( fatalError ) );
|
|
}
|