Mercurial > sdl-ios-xcode
annotate include/begin_code.h @ 1199:2d6dc7de1145
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 | 173c063d4f55 |
| children | d910939febfa |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* This file sets things up for C dynamic library function definitions, | |
| 24 static inlined functions, and structures aligned at 4-byte alignment. | |
| 25 If you don't like ugly C preprocessor code, don't look at this file. :) | |
| 26 */ | |
| 27 | |
| 28 /* This shouldn't be nested -- included it around code only. */ | |
| 29 #ifdef _begin_code_h | |
| 30 #error Nested inclusion of begin_code.h | |
| 31 #endif | |
| 32 #define _begin_code_h | |
| 33 | |
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34 /* Make sure the correct platform symbols are defined */ |
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35 #if !defined(WIN32) && defined(_WIN32) |
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36 #define WIN32 |
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37 #endif /* Windows */ |
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38 |
| 0 | 39 /* Some compilers use a special export keyword */ |
| 40 #ifndef DECLSPEC | |
| 41 # ifdef __BEOS__ | |
| 42 # if defined(__GNUC__) | |
| 43 # define DECLSPEC __declspec(dllexport) | |
| 44 # else | |
| 45 # define DECLSPEC __declspec(export) | |
| 46 # endif | |
| 47 # else | |
| 48 # ifdef WIN32 | |
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49 # ifdef __BORLANDC__ |
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50 # ifdef BUILD_SDL |
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51 # define DECLSPEC |
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52 # else |
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53 # define DECLSPEC __declspec(dllimport) |
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54 # endif |
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55 # else |
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56 # define DECLSPEC __declspec(dllexport) |
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57 # endif |
| 0 | 58 # else |
| 1190 | 59 # ifdef __OS2__ |
| 60 # ifdef __WATCOMC__ | |
| 61 # ifdef BUILD_SDL | |
| 62 # define DECLSPEC __declspec(dllexport) | |
| 63 # else | |
| 0 | 64 # define DECLSPEC |
| 65 # endif | |
| 1190 | 66 # else |
| 67 # define DECLSPEC | |
| 68 # endif | |
| 69 # else | |
| 70 # define DECLSPEC | |
| 71 # endif | |
| 72 # endif | |
| 0 | 73 # endif |
| 74 #endif | |
| 75 | |
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76 /* By default SDL uses the C calling convention */ |
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77 #ifndef SDLCALL |
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78 #if defined(WIN32) && !defined(__GNUC__) |
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79 #define SDLCALL __cdecl |
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80 #else |
| 1190 | 81 #ifdef __OS2__ |
| 82 /* But on OS/2, we use the _System calling convention */ | |
| 83 /* to be compatible with every compiler */ | |
| 84 #define SDLCALL _System | |
| 85 #else | |
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86 #define SDLCALL |
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87 #endif |
| 1190 | 88 #endif |
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89 #endif /* SDLCALL */ |
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90 |
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91 /* Removed DECLSPEC on Symbian OS because SDL cannot be a DLL in EPOC */ |
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92 #ifdef __SYMBIAN32__ |
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93 #undef DECLSPEC |
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94 #define DECLSPEC |
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95 #endif /* __SYMBIAN32__ */ |
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96 |
| 0 | 97 /* Force structure packing at 4 byte alignment. |
| 98 This is necessary if the header is included in code which has structure | |
| 99 packing set to an alternate value, say for loading structures from disk. | |
| 100 The packing is reset to the previous value in close_code.h | |
| 101 */ | |
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102 #if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__) |
| 0 | 103 #ifdef _MSC_VER |
| 104 #pragma warning(disable: 4103) | |
| 105 #endif | |
| 106 #ifdef __BORLANDC__ | |
| 107 #pragma nopackwarning | |
| 108 #endif | |
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109 #pragma pack(push,4) |
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110 #elif (defined(__MWERKS__) && defined(macintosh)) |
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111 #pragma options align=mac68k4byte |
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112 #pragma enumsalwaysint on |
| 0 | 113 #endif /* Compiler needs structure packing set */ |
| 114 | |
| 115 /* Set up compiler-specific options for inlining functions */ | |
| 116 #ifndef SDL_INLINE_OKAY | |
| 117 #ifdef __GNUC__ | |
| 118 #define SDL_INLINE_OKAY | |
| 119 #else | |
| 120 /* Add any special compiler-specific cases here */ | |
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121 #if defined(_MSC_VER) || defined(__BORLANDC__) || \ |
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122 defined(__DMC__) || defined(__SC__) || \ |
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123 defined(__WATCOMC__) || defined(__LCC__) || \ |
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124 defined(__DECC) |
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125 #ifndef __inline__ |
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126 #define __inline__ __inline |
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127 #endif |
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128 #define SDL_INLINE_OKAY |
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129 #else |
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130 #if !defined(__MRC__) && !defined(_SGI_SOURCE) |
| 0 | 131 #define __inline__ inline |
| 132 #define SDL_INLINE_OKAY | |
| 133 #endif /* Not a funky compiler */ | |
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134 #endif /* Visual C++ */ |
| 0 | 135 #endif /* GNU C */ |
| 136 #endif /* SDL_INLINE_OKAY */ | |
| 137 | |
| 138 /* If inlining isn't supported, remove "__inline__", turning static | |
| 139 inlined functions into static functions (resulting in code bloat | |
| 140 in all files which include the offending header files) | |
| 141 */ | |
| 142 #ifndef SDL_INLINE_OKAY | |
| 143 #define __inline__ | |
| 144 #endif | |
| 145 | |
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146 /* Apparently this is needed by several Windows compilers */ |
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147 #if !defined(__MACH__) |
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148 #ifndef NULL |
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149 #ifdef __cplusplus |
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150 #define NULL 0 |
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151 #else |
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152 #define NULL ((void *)0) |
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153 #endif |
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154 #endif /* NULL */ |
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155 #endif /* ! MacOS X - breaks precompiled headers */ |