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annotate src/video/Xext/Xv/Xvlibint.h @ 1199:2d6dc7de1145

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From: Mike Frysinger <vapier@gentoo.org> To: sdl@libsdl.org Date: Sun, 11 Dec 2005 22:57:37 -0500 Subject: [SDL] exec stack in libsdl update i posted back in September a patch to remove executable stacks: http://www.devolution.com/pipermail/sdl/2005-September/070626.html later in November, a similar patch was merged it seems: http://www.libsdl.org/cgi/cvsweb.cgi/SDL12/src/hermes/mmx_main.asm however, this lacks the additional output format checks that i posted in my patch ... this isnt a problem if the hermes asm code is only ever used to produce ELF objects, but if this is not true, then the additional checks in my original patch will need to be merged -mike
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 12 Dec 2005 09:13:12 +0000
parents 045f186426e1
children 19418e4422cb
rev   line source
292
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1 /***********************************************************
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2 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
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3 and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Digital or MIT not be
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12 used in advertising or publicity pertaining to distribution of the
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13 software without specific, written prior permission.
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14
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15 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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16 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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17 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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18 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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19 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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20 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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21 SOFTWARE.
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22
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23 ******************************************************************/
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24 /* $XFree86: xc/lib/Xv/Xvlibint.h,v 1.5 2001/07/25 15:04:53 dawes Exp $ */
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25
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26 #ifndef XVLIBINT_H
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27 #define XVLIBINT_H
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28 /*
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29 ** File:
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30 **
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31 ** Xvlibint.h --- Xv library internal header file
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32 **
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33 ** Author:
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34 **
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35 ** David Carver (Digital Workstation Engineering/Project Athena)
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36 **
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37 ** Revisions:
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38 **
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39 ** 01.24.91 Carver
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40 ** - version 1.4 upgrade
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41 **
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42 */
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43
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44 #define NEED_REPLIES
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45
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46 #include <X11/Xlibint.h>
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47 #include "Xvproto.h"
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48 #include "Xvlib.h"
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49
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50 #if !defined(UNIXCPP)
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51 #define XvGetReq(name, req) \
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52 WORD64ALIGN\
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53 if ((dpy->bufptr + SIZEOF(xv##name##Req)) > dpy->bufmax)\
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54 p_XFlush(dpy);\
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55 req = (xv##name##Req *)(dpy->last_req = dpy->bufptr);\
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56 req->reqType = info->codes->major_opcode;\
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57 req->xvReqType = xv_##name; \
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58 req->length = (SIZEOF(xv##name##Req))>>2;\
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59 dpy->bufptr += SIZEOF(xv##name##Req);\
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60 dpy->request++
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61
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62 #else /* non-ANSI C uses empty comment instead of "##" for token concatenation */
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63 #define XvGetReq(name, req) \
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64 WORD64ALIGN\
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65 if ((dpy->bufptr + SIZEOF(xv/**/name/**/Req)) > dpy->bufmax)\
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66 p_XFlush(dpy);\
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67 req = (xv/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
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68 req->reqType = info->codes->major_opcode;\
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69 req->xvReqType = xv_/**/name;\
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70 req->length = (SIZEOF(xv/**/name/**/Req))>>2;\
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71 dpy->bufptr += SIZEOF(xv/**/name/**/Req);\
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72 dpy->request++
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73 #endif
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74
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75
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76 #endif /* XVLIBINT_H */