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view include/SDL_platform.h @ 4137:be12463f31ea SDL-1.2

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Date: Sat, 2 Feb 2008 22:08:05 +0100 From: Marcus von Appen To: sdl@lists.libsdl.org Subject: [SDL] [Patch] SDL-1.2 SDL_revcpy() asm patch for the cld flag Hi, as reported through the FreeBSD bug tracking system in SDL 1.2.13 (and in the 1.2 branch, if I see that correctly) the SDL_revcpy() macro sets the direction flag (std), but does not clear it afterwards (cld), which is wrong according to the GCC and SYS V specs. This can cause some weird side effects, which in turn can lead to memory corruption. You can read the full report with a detailed description and test program at http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/120052 Attached is the submitted patch, which fixes the issue. Regards Marcus
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 04 Feb 2008 17:22:56 +0000
parents 6d2e1961661a
children 73d04b25c118 e27bdcc80744 0f62c4ae1cd5 a1b03ba2fcd0
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library 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 library 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 library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/

/* Try to get a standard set of platform defines */

#ifndef _SDL_platform_h
#define _SDL_platform_h

#if defined(_AIX)
#undef __AIX__
#define __AIX__		1
#endif
#if defined(__BEOS__)
#undef __BEOS__
#define __BEOS__	1
#endif
#if defined(bsdi) || defined(__bsdi) || defined(__bsdi__)
#undef __BSDI__
#define __BSDI__	1
#endif
#if defined(_arch_dreamcast)
#undef __DREAMCAST__
#define __DREAMCAST__	1
#endif
#if defined(__FreeBSD__) || defined(__DragonFly__)
#undef __FREEBSD__
#define __FREEBSD__	1
#endif
#if defined(hpux) || defined(__hpux) || defined(__hpux__)
#undef __HPUX__
#define __HPUX__	1
#endif
#if defined(sgi) || defined(__sgi) || defined(__sgi__) || defined(_SGI_SOURCE)
#undef __IRIX__
#define __IRIX__	1
#endif
#if defined(linux) || defined(__linux) || defined(__linux__)
#undef __LINUX__
#define __LINUX__	1
#endif
#if defined(__APPLE__)
#undef __MACOSX__
#define __MACOSX__	1
#elif defined(macintosh)
#undef __MACOS__
#define __MACOS__	1
#endif
#if defined(__NetBSD__)
#undef __NETBSD__
#define __NETBSD__	1
#endif
#if defined(__OpenBSD__)
#undef __OPENBSD__
#define __OPENBSD__	1
#endif
#if defined(__OS2__)
#undef __OS2__
#define __OS2__		1
#endif
#if defined(osf) || defined(__osf) || defined(__osf__) || defined(_OSF_SOURCE)
#undef __OSF__
#define __OSF__		1
#endif
#if defined(__QNXNTO__)
#undef __QNXNTO__
#define __QNXNTO__	1
#endif
#if defined(riscos) || defined(__riscos) || defined(__riscos__)
#undef __RISCOS__
#define __RISCOS__	1
#endif
#if defined(__SVR4)
#undef __SOLARIS__
#define __SOLARIS__	1
#endif
#if defined(WIN32) || defined(_WIN32)
#undef __WIN32__
#define __WIN32__	1
#endif

#endif /* _SDL_platform_h */