| 1 | /* Handle POSIX compilation environments that may or may not be present. |
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| 2 | Copyright (C) 2012-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | /* Before including this file, the including file must have included |
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| 20 | <bits/environments.h> (generally via <unistd.h>) and must have |
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| 21 | defined the following macros, exactly one of which will be called |
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| 22 | for each POSIX environment: |
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| 23 | |
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| 24 | KNOWN_PRESENT_ENVIRONMENT, for POSIX environments that are known to |
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| 25 | be supported in this libc. |
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| 26 | |
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| 27 | KNOWN_ABSENT_ENVIRONMENT, for POSIX environments that are known not |
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| 28 | to be supported on this system. |
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| 29 | |
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| 30 | UNKNOWN_ENVIRONMENT, for POSIX environments not supported in this |
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| 31 | libc but possibly supported by another libc on the same system, |
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| 32 | that can be selected using the same compiler but different |
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| 33 | compilation options. |
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| 34 | |
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| 35 | Each macro has arguments (SC_PREFIX, ENV_PREFIX, SUFFIX). The |
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| 36 | corresponding argument to sysconf is _SC_##SC_PREFIX##_##SUFFIX. |
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| 37 | The environment name, as used with getconf, is |
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| 38 | ENV_PREFIX##_##SUFFIX, and the corresponding macro is the same with |
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| 39 | a leading "_". |
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| 40 | |
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| 41 | In addition, the macros START_ENV_GROUP and END_ENV_GROUP must be |
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| 42 | defined. These are called with arguments V5, V6, V7 before and |
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| 43 | after the relevant groups of environments. */ |
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| 44 | |
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| 45 | #define NEED_SPEC_ARRAY 0 |
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| 46 | #include <posix-conf-vars.h> |
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| 47 | |
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| 48 | START_ENV_GROUP (V7) |
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| 49 | |
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| 50 | #if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFF32) |
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| 51 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
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| 52 | #elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFF32) |
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| 53 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
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| 54 | #else |
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| 55 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
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| 56 | #endif |
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| 57 | |
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| 58 | #if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFFBIG) |
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| 59 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
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| 60 | #elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFFBIG) |
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| 61 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
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| 62 | #else |
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| 63 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
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| 64 | #endif |
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| 65 | |
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| 66 | #if CONF_IS_DEFINED_SET (_POSIX_V7_LP64_OFF64) |
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| 67 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
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| 68 | #elif CONF_IS_DEFINED (_POSIX_V7_LP64_OFF64) |
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| 69 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
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| 70 | #else |
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| 71 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
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| 72 | #endif |
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| 73 | |
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| 74 | #if CONF_IS_DEFINED_SET (_POSIX_V7_LPBIG_OFFBIG) |
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| 75 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG) |
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| 76 | #elif CONF_IS_DEFINED (_POSIX_V7_LPBIG_OFFBIG) |
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| 77 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG) |
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| 78 | #else |
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| 79 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG) |
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| 80 | #endif |
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| 81 | |
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| 82 | END_ENV_GROUP (V7) |
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| 83 | |
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| 84 | START_ENV_GROUP (V6) |
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| 85 | |
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| 86 | #if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFF32) |
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| 87 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
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| 88 | #elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFF32) |
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| 89 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
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| 90 | #else |
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| 91 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
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| 92 | #endif |
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| 93 | |
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| 94 | #if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFFBIG) |
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| 95 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
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| 96 | #elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFFBIG) |
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| 97 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
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| 98 | #else |
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| 99 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
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| 100 | #endif |
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| 101 | |
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| 102 | #if CONF_IS_DEFINED_SET (_POSIX_V6_LP64_OFF64) |
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| 103 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
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| 104 | #elif CONF_IS_DEFINED (_POSIX_V6_LP64_OFF64) |
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| 105 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
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| 106 | #else |
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| 107 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
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| 108 | #endif |
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| 109 | |
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| 110 | #if CONF_IS_DEFINED_SET (_POSIX_V6_LPBIG_OFFBIG) |
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| 111 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG) |
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| 112 | #elif CONF_IS_DEFINED (_POSIX_V6_LPBIG_OFFBIG) |
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| 113 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG) |
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| 114 | #else |
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| 115 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG) |
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| 116 | #endif |
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| 117 | |
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| 118 | END_ENV_GROUP (V6) |
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| 119 | |
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| 120 | START_ENV_GROUP (V5) |
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| 121 | |
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| 122 | #if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFF32) |
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| 123 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
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| 124 | #elif CONF_IS_DEFINED (_XBS5_ILP32_OFF32) |
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| 125 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
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| 126 | #else |
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| 127 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
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| 128 | #endif |
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| 129 | |
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| 130 | #if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFFBIG) |
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| 131 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
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| 132 | #elif CONF_IS_DEFINED (_XBS5_ILP32_OFFBIG) |
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| 133 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
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| 134 | #else |
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| 135 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
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| 136 | #endif |
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| 137 | |
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| 138 | #if CONF_IS_DEFINED_SET (_XBS5_LP64_OFF64) |
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| 139 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
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| 140 | #elif CONF_IS_DEFINED (_XBS5_LP64_OFF64) |
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| 141 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
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| 142 | #else |
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| 143 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
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| 144 | #endif |
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| 145 | |
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| 146 | #if CONF_IS_DEFINED_SET (_XBS5_LPBIG_OFFBIG) |
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| 147 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG) |
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| 148 | #elif CONF_IS_DEFINED (_XBS5_LPBIG_OFFBIG) |
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| 149 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG) |
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| 150 | #else |
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| 151 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG) |
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| 152 | #endif |
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| 153 | |
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| 154 | END_ENV_GROUP (V5) |
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| 155 | |
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