From b073f281ad350f9b029379f44d543ee6a2f622cd Mon Sep 17 00:00:00 2001
From: dhewg <dhewg@wiibrew.org>
Date: Thu, 5 Jul 2012 23:09:17 +0200
Subject: [PATCH] Get rid of the SIGFPE handler

If shit happens, let it crash.
---
 neo/sys/linux/main.cpp         | 10 ---------
 neo/sys/osx/DOOMController.mm  | 41 ----------------------------------
 neo/sys/posix/posix_public.h   |  1 -
 neo/sys/posix/posix_signal.cpp | 10 +--------
 4 files changed, 1 insertion(+), 61 deletions(-)

diff --git a/neo/sys/linux/main.cpp b/neo/sys/linux/main.cpp
index b2a82dc2..e1c6c164 100644
--- a/neo/sys/linux/main.cpp
+++ b/neo/sys/linux/main.cpp
@@ -120,16 +120,6 @@ void Sys_Shutdown( void ) {
 	Posix_Shutdown();
 }
 
-/*
-===============
-Sys_FPE_handler
-===============
-*/
-void Sys_FPE_handler( int signum, siginfo_t *info, void *context ) {
-	assert( signum == SIGFPE );
-	Sys_Printf( "FPE\n" );
-}
-
 /*
 ================
 Sys_GetSystemRam
diff --git a/neo/sys/osx/DOOMController.mm b/neo/sys/osx/DOOMController.mm
index bfb62414..bb0cda1d 100644
--- a/neo/sys/osx/DOOMController.mm
+++ b/neo/sys/osx/DOOMController.mm
@@ -79,47 +79,6 @@ void Sys_Shutdown( void ) {
 	Posix_Shutdown();
 }
 
-/*
-===============
-Sys_FPE_handler
-===============
-*/
-void Sys_FPE_handler( int signum, siginfo_t *info, void *context ) {
-#if defined(__ppc__)
-	int ret;
-	ppc_float_state_t *fs;
-	ppc_thread_state_t *ss;
-
-	fs = &( (struct ucontext *)context )->uc_mcontext->fs;
-	ss = &( (struct ucontext *)context )->uc_mcontext->ss;
-
-	Sys_Printf( "FPE at 0x%x:\n", info->si_addr );
-
-	ret = fetestexcept( FE_ALL_EXCEPT );
-	if ( ret & FE_INEXACT ) {
-		Sys_Printf( "FE_INEXACT " );
-	}
-	if ( ret & FE_DIVBYZERO ) {
-		Sys_Printf( "FE_DIVBYZERO " );
-	}
-	if ( ret & FE_UNDERFLOW ) {
-		Sys_Printf( "FE_UNDERFLOW " );
-	}
-	if ( ret & FE_OVERFLOW ) {
-		Sys_Printf( "FE_OVERFLOW " );
-	}
-	if ( ret & FE_INVALID ) {
-		Sys_Printf( "FE_INVALID " );
-	}
-	Sys_Printf( "\n" );
-	// clear the exception flags
-	feclearexcept( FE_ALL_EXCEPT );
-	// re-arm
-	fs->fpscr &= exception_mask;
-	ss->srr0 += 4;
-#endif
-}
-
 /*
 ================
 Sys_GetSystemRam
diff --git a/neo/sys/posix/posix_public.h b/neo/sys/posix/posix_public.h
index 8ce6f080..bf1e6e10 100644
--- a/neo/sys/posix/posix_public.h
+++ b/neo/sys/posix/posix_public.h
@@ -50,7 +50,6 @@ void		Posix_SetExitSpawn( const char *exeName ); // set the process to be spawne
 void		Posix_InitConsoleInput( void );
 void		Posix_Shutdown( void );
 
-void		Sys_FPE_handler( int signum, siginfo_t *info, void *context );
 void		Sys_DoStartProcess( const char *exeName, bool dofork = true ); // if not forking, current process gets replaced
 
 #endif
diff --git a/neo/sys/posix/posix_signal.cpp b/neo/sys/posix/posix_signal.cpp
index 6e19e993..2b06494f 100644
--- a/neo/sys/posix/posix_signal.cpp
+++ b/neo/sys/posix/posix_signal.cpp
@@ -42,7 +42,6 @@ const int siglist[] = {
 	SIGTRAP,
 	SIGIOT,
 	SIGBUS,
-	SIGFPE,
 	SIGSEGV,
 	SIGPIPE,
 	SIGABRT,
@@ -58,7 +57,6 @@ const char *signames[] = {
 	"SIGTRAP",
 	"SIGIOT",
 	"SIGBUS",
-	"SIGFPE",
 	"SIGSEGV",
 	"SIGPIPE",
 	"SIGABRT",
@@ -138,13 +136,7 @@ void Posix_InitSigs( ) {
 
 	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 ) {
+		if ( sigaction( siglist[ i ], &action, NULL ) != 0 ) {
 			Sys_Printf( "Failed to set %s handler: %s\n", signames[ i ], strerror( errno ) );
 		}
 		i++;