]>
Commit | Line | Data |
---|---|---|
63eb8df8 | 1 | /* Definitions of macros to access `dev_t' values. |
bfff8b1b | 2 | Copyright (C) 1996-2017 Free Software Foundation, Inc. |
63eb8df8 ZW |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C 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 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
dbab6577 ZW |
19 | #ifndef _SYS_SYSMACROS_H_OUTER |
20 | ||
21 | #ifndef __SYSMACROS_DEPRECATED_INCLUSION | |
22 | # define _SYS_SYSMACROS_H_OUTER 1 | |
23 | #endif | |
24 | ||
25 | /* If <sys/sysmacros.h> is included after <sys/types.h>, these macros | |
26 | will already be defined, and we need to redefine them without the | |
27 | deprecation warnings. (If they are included in the opposite order, | |
28 | the outer #ifndef will suppress this entire file and the macros | |
29 | will be usable without warnings.) */ | |
30 | #undef major | |
31 | #undef minor | |
32 | #undef makedev | |
33 | ||
34 | /* This is the macro that must be defined to satisfy the misuse check | |
35 | in bits/sysmacros.h. */ | |
63eb8df8 ZW |
36 | #ifndef _SYS_SYSMACROS_H |
37 | #define _SYS_SYSMACROS_H 1 | |
38 | ||
39 | #include <features.h> | |
40 | #include <bits/types.h> | |
41 | #include <bits/sysmacros.h> | |
42 | ||
809b72df ZW |
43 | /* Caution: The text of this deprecation message is unquoted, so that |
44 | #symbol can be substituted. (It is converted to a string by | |
45 | __SYSMACROS_DM1.) This means the message must be a sequence of | |
46 | complete pp-tokens; in particular, English contractions (it's, | |
47 | can't) cannot be used. | |
48 | ||
49 | The message has been manually word-wrapped to fit in 80 columns | |
50 | when output by GCC 5 and 6. The first line is shorter to leave | |
51 | some room for the "foo.c:23: warning:" annotation. */ | |
52 | #define __SYSMACROS_DM(symbol) __SYSMACROS_DM1 \ | |
53 | (In the GNU C Library, #symbol is defined\n\ | |
54 | by <sys/sysmacros.h>. For historical compatibility, it is\n\ | |
55 | currently defined by <sys/types.h> as well, but we plan to\n\ | |
56 | remove this soon. To use #symbol, include <sys/sysmacros.h>\n\ | |
57 | directly. If you did not intend to use a system-defined macro\n\ | |
58 | #symbol, you should undefine it after including <sys/types.h>.) | |
59 | ||
60 | /* This macro is variadic because the deprecation message above | |
61 | contains commas. */ | |
62 | #define __SYSMACROS_DM1(...) __glibc_macro_warning (#__VA_ARGS__) | |
dbab6577 | 63 | |
63eb8df8 ZW |
64 | #define __SYSMACROS_DECL_TEMPL(rtype, name, proto) \ |
65 | extern rtype gnu_dev_##name proto __THROW __attribute_const__; | |
66 | ||
67 | #define __SYSMACROS_IMPL_TEMPL(rtype, name, proto) \ | |
68 | __extension__ __extern_inline __attribute_const__ rtype \ | |
69 | __NTH (gnu_dev_##name proto) | |
70 | ||
71 | __BEGIN_DECLS | |
72 | ||
73 | __SYSMACROS_DECLARE_MAJOR (__SYSMACROS_DECL_TEMPL) | |
74 | __SYSMACROS_DECLARE_MINOR (__SYSMACROS_DECL_TEMPL) | |
75 | __SYSMACROS_DECLARE_MAKEDEV (__SYSMACROS_DECL_TEMPL) | |
76 | ||
77 | #ifdef __USE_EXTERN_INLINES | |
78 | ||
79 | __SYSMACROS_DEFINE_MAJOR (__SYSMACROS_IMPL_TEMPL) | |
80 | __SYSMACROS_DEFINE_MINOR (__SYSMACROS_IMPL_TEMPL) | |
81 | __SYSMACROS_DEFINE_MAKEDEV (__SYSMACROS_IMPL_TEMPL) | |
82 | ||
83 | #endif | |
84 | ||
85 | __END_DECLS | |
86 | ||
dbab6577 ZW |
87 | #endif /* _SYS_SYSMACROS_H */ |
88 | ||
63eb8df8 ZW |
89 | #ifndef __SYSMACROS_NEED_IMPLEMENTATION |
90 | # undef __SYSMACROS_DECL_TEMPL | |
91 | # undef __SYSMACROS_IMPL_TEMPL | |
92 | # undef __SYSMACROS_DECLARE_MAJOR | |
93 | # undef __SYSMACROS_DECLARE_MINOR | |
94 | # undef __SYSMACROS_DECLARE_MAKEDEV | |
95 | # undef __SYSMACROS_DEFINE_MAJOR | |
96 | # undef __SYSMACROS_DEFINE_MINOR | |
97 | # undef __SYSMACROS_DEFINE_MAKEDEV | |
98 | #endif | |
99 | ||
dbab6577 | 100 | #ifdef __SYSMACROS_DEPRECATED_INCLUSION |
809b72df ZW |
101 | # define major(dev) __SYSMACROS_DM (major) gnu_dev_major (dev) |
102 | # define minor(dev) __SYSMACROS_DM (minor) gnu_dev_minor (dev) | |
103 | # define makedev(maj, min) __SYSMACROS_DM (makedev) gnu_dev_makedev (maj, min) | |
dbab6577 ZW |
104 | #else |
105 | # define major(dev) gnu_dev_major (dev) | |
106 | # define minor(dev) gnu_dev_minor (dev) | |
107 | # define makedev(maj, min) gnu_dev_makedev (maj, min) | |
108 | #endif | |
63eb8df8 ZW |
109 | |
110 | #endif /* sys/sysmacros.h */ |