core.sys.posix.config source code

1 /**
2  * D header file for POSIX.
3  *
4  * Copyright: Copyright Sean Kelly 2005 - 2009.
5  * License:   $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
6  * Authors:   Sean Kelly,
7               Alex Rønne Petersen
8  * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
9  */
10 
11 /*          Copyright Sean Kelly 2005 - 2009.
12  * Distributed under the Boost Software License, Version 1.0.
13  *    (See accompanying file LICENSE or copy at
14  *          http://www.boost.org/LICENSE_1_0.txt)
15  */
16 module core.sys.posix.config;
17 
18 public import core.stdc.config;
19 
20 version (Posix):
21 extern (C) nothrow @nogc:
22 
23 enum _XOPEN_SOURCE     = 600;
24 enum _POSIX_SOURCE     = true;
25 enum _POSIX_C_SOURCE   = 200112L;
26 
27 version (CRuntime_Glibc)
28 {
29     // man 7 feature_test_macros
30     // http://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
31     enum _GNU_SOURCE         = false;
32     enum _DEFAULT_SOURCE     = false;
33     enum _ATFILE_SOURCE      = false;
34 
35     // _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for _DEFAULT_SOURCE.
36     deprecated("use _DEFAULT_SOURCE")
37     {
38         enum _BSD_SOURCE = false;
39         enum _SVID_SOURCE = false;
40     }
41 
42     enum _FILE_OFFSET_BITS   = 64;
43     // <sys/cdefs.h>
44     enum __REDIRECT          = false;
45 
46     enum _REENTRANT          = true; // set by compiler when linking -pthread
47 
48     // deduced <features.h>
49     enum __USE_FILE_OFFSET64 = _FILE_OFFSET_BITS == 64;
50     enum __USE_LARGEFILE     = __USE_FILE_OFFSET64 && !__REDIRECT;
51     enum __USE_LARGEFILE64   = __USE_FILE_OFFSET64 && !__REDIRECT;
52 
53     deprecated("use _XOPEN_SOURCE >= 600")
54     {
55         enum __USE_XOPEN2K      = _XOPEN_SOURCE >= 600;
56         enum __USE_XOPEN2KXSI   = _XOPEN_SOURCE >= 600;
57     }
58     deprecated("use _XOPEN_SOURCE >= 700")
59     {
60         enum __USE_XOPEN2K8     = _XOPEN_SOURCE >= 700;
61         enum __USE_XOPEN2K8XSI  = _XOPEN_SOURCE >= 700;
62     }
63 
64     deprecated("use _DEFAULT_SOURCE")
65     enum __USE_MISC          = _DEFAULT_SOURCE;
66     deprecated("use _ATFILE_SOURCE")
67     enum __USE_ATFILE        = _ATFILE_SOURCE;
68     deprecated("use _GNU_SOURCE")
69     enum __USE_GNU           = _GNU_SOURCE;
70     deprecated("use _REENTRANT")
71     enum __USE_REENTRANT     = _REENTRANT;
72 
73     version (D_LP64)
74         enum __WORDSIZE = 64;
75     else
76         enum __WORDSIZE = 32;
77 }
78 else version (CRuntime_Musl)
79 {
80     enum _GNU_SOURCE         = false;
81     enum _DEFAULT_SOURCE     = false;
82     enum _ATFILE_SOURCE      = false;
83 
84     // off_t is always 64 bits on Musl
85     enum _FILE_OFFSET_BITS   = 64;
86 
87     // Not present in Musl sources
88     enum __REDIRECT          = false;
89 
90     // Those three are irrelevant for Musl as it always uses 64 bits off_t
91     enum __USE_FILE_OFFSET64 = _FILE_OFFSET_BITS == 64;
92     enum __USE_LARGEFILE     = __USE_FILE_OFFSET64 && !__REDIRECT;
93     enum __USE_LARGEFILE64   = __USE_FILE_OFFSET64 && !__REDIRECT;
94 
95     version (D_LP64)
96         enum __WORDSIZE = 64;
97     else
98         enum __WORDSIZE = 32;
99 }
100 else version (CRuntime_UClibc)
101 {
102     enum _GNU_SOURCE         = false;
103     enum _DEFAULT_SOURCE     = false;
104     enum _ATFILE_SOURCE      = false;
105 
106     enum _FILE_OFFSET_BITS   = 64;
107     enum __REDIRECT          = false;
108 
109     enum _REENTRANT          = true;
110 
111     enum __USE_FILE_OFFSET64 = _FILE_OFFSET_BITS == 64;
112     enum __USE_LARGEFILE     = __USE_FILE_OFFSET64 && !__REDIRECT;
113     enum __USE_LARGEFILE64   = __USE_FILE_OFFSET64 && !__REDIRECT;
114 
115     deprecated("use _XOPEN_SOURCE >= 600")
116     {
117         enum __USE_XOPEN2K      = _XOPEN_SOURCE >= 600;
118         enum __USE_XOPEN2KXSI   = _XOPEN_SOURCE >= 600;
119     }
120     deprecated("use _XOPEN_SOURCE >= 700")
121     {
122         enum __USE_XOPEN2K8     = _XOPEN_SOURCE >= 700;
123         enum __USE_XOPEN2K8XSI  = _XOPEN_SOURCE >= 700;
124     }
125 
126     deprecated("use _DEFAULT_SOURCE")
127     enum __USE_MISC          = _DEFAULT_SOURCE;
128     deprecated("use _ATFILE_SOURCE")
129     enum __USE_ATFILE        = _ATFILE_SOURCE;
130     deprecated("use _GNU_SOURCE")
131     enum __USE_GNU           = _GNU_SOURCE;
132     deprecated("use _REENTRANT")
133     enum __USE_REENTRANT     = _REENTRANT;
134 
135     version (D_LP64)
136         enum __WORDSIZE = 64;
137     else
138         enum __WORDSIZE = 32;
139 }
140 else version (CRuntime_Bionic)
141 {
142     enum _GNU_SOURCE         = false;
143     enum _DEFAULT_SOURCE     = false;
144     enum _ATFILE_SOURCE      = false;
145 
146     enum __USE_FILE_OFFSET64 = false; // see https://android.googlesource.com/platform/bionic/+/master/docs/32-bit-abi.md
147     deprecated("use _GNU_SOURCE")
148     enum __USE_GNU           = _GNU_SOURCE;
149 
150     version (D_LP64)
151         enum __WORDSIZE = 64;
152     else
153         enum __WORDSIZE = 32;
154 }
155 else version (OpenBSD)
156 {
157     version (Alpha)
158     {
159         enum _ALIGNBYTES = 7;
160         enum _STACKALIGNBYTES = 7;
161         enum _MAX_PAGE_SHIFT = 13;
162     }
163     else version (X86_64)
164     {
165         enum _ALIGNBYTES = c_long.sizeof - 1;
166         enum _STACKALIGNBYTES = 15;
167         enum _MAX_PAGE_SHIFT = 12;
168     }
169     else version (AArch64)
170     {
171         enum _ALIGNBYTES = c_long.sizeof - 1;
172         enum _STACKALIGNBYTES = 15;
173         enum _MAX_PAGE_SHIFT = 12;
174     }
175     else version (ARM)
176     {
177         enum _ALIGNBYTES = 7;
178         enum _STACKALIGNBYTES = 7;
179         enum _MAX_PAGE_SHIFT = 12;
180     }
181     else version (HPPA)
182     {
183         enum _ALIGNBYTES = 7;
184         enum _STACKALIGNBYTES = 7;
185         enum _MAX_PAGE_SHIFT = 12;
186     }
187     else version (X86)
188     {
189         enum _ALIGNBYTES = 3;
190         enum _STACKALIGNBYTES = 15;
191         enum _MAX_PAGE_SHIFT = 12;
192     }
193     else version (PPC)
194     {
195         enum _ALIGNBYTES = 7;
196         enum _STACKALIGNBYTES = 15;
197         enum _MAX_PAGE_SHIFT = 12;
198     }
199     else version (SPARC64)
200     {
201         enum _ALIGNBYTES = 15;
202         enum _STACKALIGNBYTES = 15;
203         enum _MAX_PAGE_SHIFT = 13;
204     }
205     else
206         static assert(false, "Architecture not supported.");
207 }
208 else version (Solaris)
209 {
210     enum _FILE_OFFSET_BITS = 64;
211     enum __REDIRECT = false;
212 
213     enum __USE_FILE_OFFSET64 = _FILE_OFFSET_BITS == 64;
214     enum __USE_LARGEFILE = __USE_FILE_OFFSET64 && !__REDIRECT;
215     enum __USE_LARGEFILE64 = __USE_FILE_OFFSET64 && !__REDIRECT;
216 
217     deprecated("use _XOPEN_SOURCE >= 600")
218     {
219         enum __USE_XOPEN2K      = _XOPEN_SOURCE >= 600;
220         enum __USE_XOPEN2KXSI   = _XOPEN_SOURCE >= 600;
221     }
222     deprecated("use _XOPEN_SOURCE >= 700")
223     {
224         enum __USE_XOPEN2K8     = _XOPEN_SOURCE >= 700;
225         enum __USE_XOPEN2K8XSI  = _XOPEN_SOURCE >= 700;
226     }
227 
228     version (D_LP64)
229         enum __WORDSIZE = 64;
230     else
231         enum __WORDSIZE = 32;
232 }