1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28/**
29 * @file
30 * Gallium configuration defines.
31 *
32 * This header file sets several defines based on the compiler, processor
33 * architecture, and operating system being used. These defines should be used
34 * throughout the code to facilitate porting to new platforms. It is likely that
35 * this file is auto-generated by an autoconf-like tool at some point, as some
36 * things cannot be determined by pre-defined environment alone.
37 *
38 * See also:
39 * - http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
40 * - echo | gcc -dM -E - | sort
41 * - http://msdn.microsoft.com/en-us/library/b0084kay.aspx
42 *
43 * @author José Fonseca <jrfonseca@tungstengraphics.com>
44 */
45
46#ifndef P_CONFIG_H_
47#define P_CONFIG_H_
48
49#include <limits.h>
50/*
51 * Compiler
52 */
53
54#if defined(__GNUC__)
55#define PIPE_CC_GCC
56#define PIPE_CC_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
57#endif
58
59/*
60 * Meaning of _MSC_VER value:
61 * - 1400: Visual C++ 2005
62 * - 1310: Visual C++ .NET 2003
63 * - 1300: Visual C++ .NET 2002
64 *
65 * __MSC__ seems to be an old macro -- it is not pre-defined on recent MSVC
66 * versions.
67 */
68#if defined(_MSC_VER) || defined(__MSC__)
69#define PIPE_CC_MSVC
70#endif
71
72#if defined(__ICL)
73#define PIPE_CC_ICL
74#endif
75
76
77/*
78 * Processor architecture
79 */
80
81#if defined(__i386__) /* gcc */ || defined(_M_IX86) /* msvc */ || defined(_X86_) || defined(__386__) || defined(i386) || defined(__i386) /* Sun cc */
82#define PIPE_ARCH_X86
83#endif
84
85#if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
86#define PIPE_ARCH_X86_64
87#endif
88
89#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
90#if defined(PIPE_CC_GCC) && !defined(__SSE2__)
91/* #warning SSE2 support requires -msse -msse2 compiler options */
92#else
93#define PIPE_ARCH_SSE
94#endif
95#if defined(PIPE_CC_GCC) && !defined(__SSSE3__)
96/* #warning SSE3 support requires -msse3 compiler options */
97#else
98#define PIPE_ARCH_SSSE3
99#endif
100#endif
101
102#if defined(__ppc__) || defined(__ppc64__) || defined(__PPC__)
103#define PIPE_ARCH_PPC
104#if defined(__ppc64__) || defined(__PPC64__)
105#define PIPE_ARCH_PPC_64
106#endif
107#endif
108
109
110/*
111 * Endian detection.
112 */
113
114#ifdef __GLIBC__
115#include <endian.h>
116
117#if __BYTE_ORDER == __LITTLE_ENDIAN
118# define PIPE_ARCH_LITTLE_ENDIAN
119#elif __BYTE_ORDER == __BIG_ENDIAN
120# define PIPE_ARCH_BIG_ENDIAN
121#endif
122
123#elif defined(__APPLE__)
124#include <machine/endian.h>
125
126#if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
127# define PIPE_ARCH_LITTLE_ENDIAN
128#elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
129# define PIPE_ARCH_BIG_ENDIAN
130#endif
131
132#elif defined(__sun)
133#include <sys/isa_defs.h>
134
135#if defined(_LITTLE_ENDIAN)
136# define PIPE_ARCH_LITTLE_ENDIAN
137#elif defined(_BIG_ENDIAN)
138# define PIPE_ARCH_BIG_ENDIAN
139#endif
140
141#else
142
143#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
144#define PIPE_ARCH_LITTLE_ENDIAN
145#elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64)
146#define PIPE_ARCH_BIG_ENDIAN
147#endif
148
149#endif
150
151#if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
152#error Unknown Endianness
153#endif
154
155/*
156 * Auto-detect the operating system family.
157 *
158 * See subsystem below for a more fine-grained distinction.
159 */
160
161#if defined(__linux__)
162#define PIPE_OS_LINUX
163#define PIPE_OS_UNIX
164#endif
165
166/*
167 * Android defines __linux__ so PIPE_OS_LINUX and PIPE_OS_UNIX will also be
168 * defined.
169 */
170#if defined(ANDROID)
171#define PIPE_OS_ANDROID
172#endif
173
174#if defined(__FreeBSD__)
175#define PIPE_OS_FREEBSD
176#define PIPE_OS_BSD
177#define PIPE_OS_UNIX
178#endif
179
180#if defined(__OpenBSD__)
181#define PIPE_OS_OPENBSD
182#define PIPE_OS_BSD
183#define PIPE_OS_UNIX
184#endif
185
186#if defined(__NetBSD__)
187#define PIPE_OS_NETBSD
188#define PIPE_OS_BSD
189#define PIPE_OS_UNIX
190#endif
191
192#if defined(__GNU__)
193#define PIPE_OS_HURD
194#define PIPE_OS_UNIX
195#endif
196
197#if defined(__sun)
198#define PIPE_OS_SOLARIS
199#define PIPE_OS_UNIX
200#endif
201
202#if defined(__APPLE__)
203#define PIPE_OS_APPLE
204#define PIPE_OS_UNIX
205#endif
206
207#if defined(_WIN32) || defined(WIN32)
208#define PIPE_OS_WINDOWS
209#endif
210
211#if defined(__HAIKU__)
212#define PIPE_OS_HAIKU
213#define PIPE_OS_UNIX
214#endif
215
216#if defined(__CYGWIN__)
217#define PIPE_OS_CYGWIN
218#define PIPE_OS_UNIX
219#endif
220
221/*
222 * Try to auto-detect the subsystem.
223 *
224 * NOTE: There is no way to auto-detect most of these.
225 */
226
227#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
228#define PIPE_SUBSYSTEM_DRI
229#endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
230
231#if defined(PIPE_OS_WINDOWS)
232#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
233/* Windows User-space Library */
234#else
235#define PIPE_SUBSYSTEM_WINDOWS_USER
236#endif
237#endif /* PIPE_OS_WINDOWS */
238
239
240#endif /* P_CONFIG_H_ */
241