p_config.h revision af69d88d 
1/**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
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 VMWARE 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 <jfonseca@vmware.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 * - 1800: Visual Studio 2013
62 * - 1700: Visual Studio 2012
63 * - 1600: Visual Studio 2010
64 * - 1500: Visual Studio 2008
65 * - 1400: Visual C++ 2005
66 * - 1310: Visual C++ .NET 2003
67 * - 1300: Visual C++ .NET 2002
68 *
69 * __MSC__ seems to be an old macro -- it is not pre-defined on recent MSVC
70 * versions.
71 */
72#if defined(_MSC_VER) || defined(__MSC__)
73#define PIPE_CC_MSVC
74#endif
75
76#if defined(__ICL)
77#define PIPE_CC_ICL
78#endif
79
80#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
81#define PIPE_CC_SUNPRO
82#endif
83
84
85/*
86 * Processor architecture
87 */
88
89#if defined(__i386__) /* gcc */ || defined(_M_IX86) /* msvc */ || defined(_X86_) || defined(__386__) || defined(i386) || defined(__i386) /* Sun cc */
90#define PIPE_ARCH_X86
91#endif
92
93#if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
94#define PIPE_ARCH_X86_64
95#endif
96
97#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
98#if defined(PIPE_CC_GCC) && !defined(__SSE2__)
99/* #warning SSE2 support requires -msse -msse2 compiler options */
100#else
101#define PIPE_ARCH_SSE
102#endif
103#if defined(PIPE_CC_GCC) && !defined(__SSSE3__)
104/* #warning SSE3 support requires -msse3 compiler options */
105#else
106#define PIPE_ARCH_SSSE3
107#endif
108#endif
109
110#if defined(__ppc__) || defined(__ppc64__) || defined(__PPC__)
111#define PIPE_ARCH_PPC
112#if defined(__ppc64__) || defined(__PPC64__)
113#define PIPE_ARCH_PPC_64
114#endif
115#endif
116
117#if defined(__s390x__)
118#define PIPE_ARCH_S390
119#endif
120
121#if defined(__arm__)
122#define PIPE_ARCH_ARM
123#endif
124
125#if defined(__aarch64__)
126#define PIPE_ARCH_AARCH64
127#endif
128
129/*
130 * Endian detection.
131 */
132
133#ifdef __GLIBC__
134#include <endian.h>
135
136#if __BYTE_ORDER == __LITTLE_ENDIAN
137# define PIPE_ARCH_LITTLE_ENDIAN
138#elif __BYTE_ORDER == __BIG_ENDIAN
139# define PIPE_ARCH_BIG_ENDIAN
140#endif
141
142#elif defined(__APPLE__)
143#include <machine/endian.h>
144
145#if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
146# define PIPE_ARCH_LITTLE_ENDIAN
147#elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
148# define PIPE_ARCH_BIG_ENDIAN
149#endif
150
151#elif defined(__sun)
152#include <sys/isa_defs.h>
153
154#if defined(_LITTLE_ENDIAN)
155# define PIPE_ARCH_LITTLE_ENDIAN
156#elif defined(_BIG_ENDIAN)
157# define PIPE_ARCH_BIG_ENDIAN
158#endif
159
160#elif defined(__OpenBSD__)
161#include <sys/types.h>
162#include <machine/endian.h>
163
164#if _BYTE_ORDER == _LITTLE_ENDIAN
165# define PIPE_ARCH_LITTLE_ENDIAN
166#elif _BYTE_ORDER == _BIG_ENDIAN
167# define PIPE_ARCH_BIG_ENDIAN
168#endif
169
170#else
171
172#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) || defined(PIPE_ARCH_ARM) || defined(PIPE_ARCH_AARCH64)
173#define PIPE_ARCH_LITTLE_ENDIAN
174#elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64) || defined(PIPE_ARCH_S390)
175#define PIPE_ARCH_BIG_ENDIAN
176#endif
177
178#endif
179
180#if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
181#error Unknown Endianness
182#endif
183
184/*
185 * Auto-detect the operating system family.
186 *
187 * See subsystem below for a more fine-grained distinction.
188 */
189
190#if defined(__linux__)
191#define PIPE_OS_LINUX
192#define PIPE_OS_UNIX
193#endif
194
195/*
196 * Android defines __linux__ so PIPE_OS_LINUX and PIPE_OS_UNIX will also be
197 * defined.
198 */
199#if defined(ANDROID)
200#define PIPE_OS_ANDROID
201#endif
202
203#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
204#define PIPE_OS_FREEBSD
205#define PIPE_OS_BSD
206#define PIPE_OS_UNIX
207#endif
208
209#if defined(__OpenBSD__)
210#define PIPE_OS_OPENBSD
211#define PIPE_OS_BSD
212#define PIPE_OS_UNIX
213#endif
214
215#if defined(__NetBSD__)
216#define PIPE_OS_NETBSD
217#define PIPE_OS_BSD
218#define PIPE_OS_UNIX
219#endif
220
221#if defined(__GNU__)
222#define PIPE_OS_HURD
223#define PIPE_OS_UNIX
224#endif
225
226#if defined(__sun)
227#define PIPE_OS_SOLARIS
228#define PIPE_OS_UNIX
229#endif
230
231#if defined(__APPLE__)
232#define PIPE_OS_APPLE
233#define PIPE_OS_UNIX
234#endif
235
236#if defined(_WIN32) || defined(WIN32)
237#define PIPE_OS_WINDOWS
238#endif
239
240#if defined(__HAIKU__)
241#define PIPE_OS_HAIKU
242#define PIPE_OS_UNIX
243#endif
244
245#if defined(__CYGWIN__)
246#define PIPE_OS_CYGWIN
247#define PIPE_OS_UNIX
248#endif
249
250/*
251 * Try to auto-detect the subsystem.
252 *
253 * NOTE: There is no way to auto-detect most of these.
254 */
255
256#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
257#define PIPE_SUBSYSTEM_DRI
258#endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
259
260#if defined(PIPE_OS_WINDOWS)
261#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
262/* Windows User-space Library */
263#else
264#define PIPE_SUBSYSTEM_WINDOWS_USER
265#endif
266#endif /* PIPE_OS_WINDOWS */
267
268
269#endif /* P_CONFIG_H_ */
270