1*8b26181fSAndroid Build Coastguard Worker /* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ 2*8b26181fSAndroid Build Coastguard Worker /* 3*8b26181fSAndroid Build Coastguard Worker * Copyright (c) 1993, 1994, 1995, 1996, 1997 4*8b26181fSAndroid Build Coastguard Worker * The Regents of the University of California. All rights reserved. 5*8b26181fSAndroid Build Coastguard Worker * 6*8b26181fSAndroid Build Coastguard Worker * Redistribution and use in source and binary forms, with or without 7*8b26181fSAndroid Build Coastguard Worker * modification, are permitted provided that the following conditions 8*8b26181fSAndroid Build Coastguard Worker * are met: 9*8b26181fSAndroid Build Coastguard Worker * 1. Redistributions of source code must retain the above copyright 10*8b26181fSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer. 11*8b26181fSAndroid Build Coastguard Worker * 2. Redistributions in binary form must reproduce the above copyright 12*8b26181fSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer in the 13*8b26181fSAndroid Build Coastguard Worker * documentation and/or other materials provided with the distribution. 14*8b26181fSAndroid Build Coastguard Worker * 3. All advertising materials mentioning features or use of this software 15*8b26181fSAndroid Build Coastguard Worker * must display the following acknowledgement: 16*8b26181fSAndroid Build Coastguard Worker * This product includes software developed by the Computer Systems 17*8b26181fSAndroid Build Coastguard Worker * Engineering Group at Lawrence Berkeley Laboratory. 18*8b26181fSAndroid Build Coastguard Worker * 4. Neither the name of the University nor of the Laboratory may be used 19*8b26181fSAndroid Build Coastguard Worker * to endorse or promote products derived from this software without 20*8b26181fSAndroid Build Coastguard Worker * specific prior written permission. 21*8b26181fSAndroid Build Coastguard Worker * 22*8b26181fSAndroid Build Coastguard Worker * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23*8b26181fSAndroid Build Coastguard Worker * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24*8b26181fSAndroid Build Coastguard Worker * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25*8b26181fSAndroid Build Coastguard Worker * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26*8b26181fSAndroid Build Coastguard Worker * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27*8b26181fSAndroid Build Coastguard Worker * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28*8b26181fSAndroid Build Coastguard Worker * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29*8b26181fSAndroid Build Coastguard Worker * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30*8b26181fSAndroid Build Coastguard Worker * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31*8b26181fSAndroid Build Coastguard Worker * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32*8b26181fSAndroid Build Coastguard Worker * SUCH DAMAGE. 33*8b26181fSAndroid Build Coastguard Worker */ 34*8b26181fSAndroid Build Coastguard Worker 35*8b26181fSAndroid Build Coastguard Worker #ifndef lib_pcap_compiler_tests_h 36*8b26181fSAndroid Build Coastguard Worker #define lib_pcap_compiler_tests_h 37*8b26181fSAndroid Build Coastguard Worker 38*8b26181fSAndroid Build Coastguard Worker /* 39*8b26181fSAndroid Build Coastguard Worker * This was introduced by Clang: 40*8b26181fSAndroid Build Coastguard Worker * 41*8b26181fSAndroid Build Coastguard Worker * https://clang.llvm.org/docs/LanguageExtensions.html#has-attribute 42*8b26181fSAndroid Build Coastguard Worker * 43*8b26181fSAndroid Build Coastguard Worker * in some version (which version?); it has been picked up by GCC 5.0. 44*8b26181fSAndroid Build Coastguard Worker */ 45*8b26181fSAndroid Build Coastguard Worker #ifndef __has_attribute 46*8b26181fSAndroid Build Coastguard Worker /* 47*8b26181fSAndroid Build Coastguard Worker * It's a macro, so you can check whether it's defined to check 48*8b26181fSAndroid Build Coastguard Worker * whether it's supported. 49*8b26181fSAndroid Build Coastguard Worker * 50*8b26181fSAndroid Build Coastguard Worker * If it's not, define it to always return 0, so that we move on to 51*8b26181fSAndroid Build Coastguard Worker * the fallback checks. 52*8b26181fSAndroid Build Coastguard Worker */ 53*8b26181fSAndroid Build Coastguard Worker #define __has_attribute(x) 0 54*8b26181fSAndroid Build Coastguard Worker #endif 55*8b26181fSAndroid Build Coastguard Worker 56*8b26181fSAndroid Build Coastguard Worker /* 57*8b26181fSAndroid Build Coastguard Worker * Note that the C90 spec's "6.8.1 Conditional inclusion" and the 58*8b26181fSAndroid Build Coastguard Worker * C99 spec's and C11 spec's "6.10.1 Conditional inclusion" say: 59*8b26181fSAndroid Build Coastguard Worker * 60*8b26181fSAndroid Build Coastguard Worker * Prior to evaluation, macro invocations in the list of preprocessing 61*8b26181fSAndroid Build Coastguard Worker * tokens that will become the controlling constant expression are 62*8b26181fSAndroid Build Coastguard Worker * replaced (except for those macro names modified by the defined unary 63*8b26181fSAndroid Build Coastguard Worker * operator), just as in normal text. If the token "defined" is 64*8b26181fSAndroid Build Coastguard Worker * generated as a result of this replacement process or use of the 65*8b26181fSAndroid Build Coastguard Worker * "defined" unary operator does not match one of the two specified 66*8b26181fSAndroid Build Coastguard Worker * forms prior to macro replacement, the behavior is undefined. 67*8b26181fSAndroid Build Coastguard Worker * 68*8b26181fSAndroid Build Coastguard Worker * so you shouldn't use defined() in a #define that's used in #if or 69*8b26181fSAndroid Build Coastguard Worker * #elif. Some versions of Clang, for example, will warn about this. 70*8b26181fSAndroid Build Coastguard Worker * 71*8b26181fSAndroid Build Coastguard Worker * Instead, we check whether the pre-defined macros for particular 72*8b26181fSAndroid Build Coastguard Worker * compilers are defined and, if not, define the "is this version XXX 73*8b26181fSAndroid Build Coastguard Worker * or a later version of this compiler" macros as 0. 74*8b26181fSAndroid Build Coastguard Worker */ 75*8b26181fSAndroid Build Coastguard Worker 76*8b26181fSAndroid Build Coastguard Worker /* 77*8b26181fSAndroid Build Coastguard Worker * Check whether this is GCC major.minor or a later release, or some 78*8b26181fSAndroid Build Coastguard Worker * compiler that claims to be "just like GCC" of that version or a 79*8b26181fSAndroid Build Coastguard Worker * later release. 80*8b26181fSAndroid Build Coastguard Worker */ 81*8b26181fSAndroid Build Coastguard Worker 82*8b26181fSAndroid Build Coastguard Worker #if ! defined(__GNUC__) 83*8b26181fSAndroid Build Coastguard Worker /* Not GCC and not "just like GCC" */ 84*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_GNUC_VERSION(major, minor) 0 85*8b26181fSAndroid Build Coastguard Worker #else 86*8b26181fSAndroid Build Coastguard Worker /* GCC or "just like GCC" */ 87*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_GNUC_VERSION(major, minor) \ 88*8b26181fSAndroid Build Coastguard Worker (__GNUC__ > (major) || \ 89*8b26181fSAndroid Build Coastguard Worker (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 90*8b26181fSAndroid Build Coastguard Worker #endif 91*8b26181fSAndroid Build Coastguard Worker 92*8b26181fSAndroid Build Coastguard Worker /* 93*8b26181fSAndroid Build Coastguard Worker * Check whether this is Clang major.minor or a later release. 94*8b26181fSAndroid Build Coastguard Worker */ 95*8b26181fSAndroid Build Coastguard Worker 96*8b26181fSAndroid Build Coastguard Worker #if !defined(__clang__) 97*8b26181fSAndroid Build Coastguard Worker /* Not Clang */ 98*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_CLANG_VERSION(major, minor) 0 99*8b26181fSAndroid Build Coastguard Worker #else 100*8b26181fSAndroid Build Coastguard Worker /* Clang */ 101*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_CLANG_VERSION(major, minor) \ 102*8b26181fSAndroid Build Coastguard Worker (__clang_major__ > (major) || \ 103*8b26181fSAndroid Build Coastguard Worker (__clang_major__ == (major) && __clang_minor__ >= (minor))) 104*8b26181fSAndroid Build Coastguard Worker #endif 105*8b26181fSAndroid Build Coastguard Worker 106*8b26181fSAndroid Build Coastguard Worker /* 107*8b26181fSAndroid Build Coastguard Worker * Check whether this is Sun C/SunPro C/Oracle Studio major.minor 108*8b26181fSAndroid Build Coastguard Worker * or a later release. 109*8b26181fSAndroid Build Coastguard Worker * 110*8b26181fSAndroid Build Coastguard Worker * The version number in __SUNPRO_C is encoded in hex BCD, with the 111*8b26181fSAndroid Build Coastguard Worker * uppermost hex digit being the major version number, the next 112*8b26181fSAndroid Build Coastguard Worker * one or two hex digits being the minor version number, and 113*8b26181fSAndroid Build Coastguard Worker * the last digit being the patch version. 114*8b26181fSAndroid Build Coastguard Worker * 115*8b26181fSAndroid Build Coastguard Worker * It represents the *compiler* version, not the product version; 116*8b26181fSAndroid Build Coastguard Worker * see 117*8b26181fSAndroid Build Coastguard Worker * 118*8b26181fSAndroid Build Coastguard Worker * https://sourceforge.net/p/predef/wiki/Compilers/ 119*8b26181fSAndroid Build Coastguard Worker * 120*8b26181fSAndroid Build Coastguard Worker * for a partial mapping, which we assume continues for later 121*8b26181fSAndroid Build Coastguard Worker * 12.x product releases. 122*8b26181fSAndroid Build Coastguard Worker */ 123*8b26181fSAndroid Build Coastguard Worker 124*8b26181fSAndroid Build Coastguard Worker #if ! defined(__SUNPRO_C) 125*8b26181fSAndroid Build Coastguard Worker /* Not Sun/Oracle C */ 126*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_SUNC_VERSION(major,minor) 0 127*8b26181fSAndroid Build Coastguard Worker #else 128*8b26181fSAndroid Build Coastguard Worker /* Sun/Oracle C */ 129*8b26181fSAndroid Build Coastguard Worker #define PCAP_SUNPRO_VERSION_TO_BCD(major, minor) \ 130*8b26181fSAndroid Build Coastguard Worker (((minor) >= 10) ? \ 131*8b26181fSAndroid Build Coastguard Worker (((major) << 12) | (((minor)/10) << 8) | (((minor)%10) << 4)) : \ 132*8b26181fSAndroid Build Coastguard Worker (((major) << 8) | ((minor) << 4))) 133*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_SUNC_VERSION(major,minor) \ 134*8b26181fSAndroid Build Coastguard Worker (__SUNPRO_C >= PCAP_SUNPRO_VERSION_TO_BCD((major), (minor))) 135*8b26181fSAndroid Build Coastguard Worker #endif 136*8b26181fSAndroid Build Coastguard Worker 137*8b26181fSAndroid Build Coastguard Worker /* 138*8b26181fSAndroid Build Coastguard Worker * Check whether this is IBM XL C major.minor or a later release. 139*8b26181fSAndroid Build Coastguard Worker * 140*8b26181fSAndroid Build Coastguard Worker * The version number in __xlC__ has the major version in the 141*8b26181fSAndroid Build Coastguard Worker * upper 8 bits and the minor version in the lower 8 bits. 142*8b26181fSAndroid Build Coastguard Worker * On AIX __xlC__ is always defined, __ibmxl__ becomes defined in XL C 16.1. 143*8b26181fSAndroid Build Coastguard Worker * On Linux since XL C 13.1.6 __xlC__ is not defined by default anymore, but 144*8b26181fSAndroid Build Coastguard Worker * __ibmxl__ is defined since at least XL C 13.1.1. 145*8b26181fSAndroid Build Coastguard Worker */ 146*8b26181fSAndroid Build Coastguard Worker 147*8b26181fSAndroid Build Coastguard Worker #if ! defined(__xlC__) && ! defined(__ibmxl__) 148*8b26181fSAndroid Build Coastguard Worker /* Not XL C */ 149*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_XL_C_VERSION(major,minor) 0 150*8b26181fSAndroid Build Coastguard Worker #else 151*8b26181fSAndroid Build Coastguard Worker /* XL C */ 152*8b26181fSAndroid Build Coastguard Worker #if defined(__ibmxl__) 153*8b26181fSAndroid Build Coastguard Worker /* 154*8b26181fSAndroid Build Coastguard Worker * Later Linux version of XL C; use __ibmxl_version__ to test 155*8b26181fSAndroid Build Coastguard Worker * the version. 156*8b26181fSAndroid Build Coastguard Worker */ 157*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_XL_C_VERSION(major, minor) \ 158*8b26181fSAndroid Build Coastguard Worker (__ibmxl_version__ > (major) || \ 159*8b26181fSAndroid Build Coastguard Worker (__ibmxl_version__ == (major) && __ibmxl_release__ >= (minor))) 160*8b26181fSAndroid Build Coastguard Worker #else /* __ibmxl__ */ 161*8b26181fSAndroid Build Coastguard Worker /* 162*8b26181fSAndroid Build Coastguard Worker * __ibmxl__ not defined; use __xlC__ to test the version. 163*8b26181fSAndroid Build Coastguard Worker */ 164*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_XL_C_VERSION(major, minor) \ 165*8b26181fSAndroid Build Coastguard Worker (__xlC__ >= (((major) << 8) | (minor))) 166*8b26181fSAndroid Build Coastguard Worker #endif /* __ibmxl__ */ 167*8b26181fSAndroid Build Coastguard Worker #endif 168*8b26181fSAndroid Build Coastguard Worker 169*8b26181fSAndroid Build Coastguard Worker /* 170*8b26181fSAndroid Build Coastguard Worker * Check whether this is HP aC++/HP C major.minor or a later release. 171*8b26181fSAndroid Build Coastguard Worker * 172*8b26181fSAndroid Build Coastguard Worker * The version number in __HP_aCC is encoded in zero-padded decimal BCD, 173*8b26181fSAndroid Build Coastguard Worker * with the "A." stripped off, the uppermost two decimal digits being 174*8b26181fSAndroid Build Coastguard Worker * the major version number, the next two decimal digits being the minor 175*8b26181fSAndroid Build Coastguard Worker * version number, and the last two decimal digits being the patch version. 176*8b26181fSAndroid Build Coastguard Worker * (Strip off the A., remove the . between the major and minor version 177*8b26181fSAndroid Build Coastguard Worker * number, and add two digits of patch.) 178*8b26181fSAndroid Build Coastguard Worker */ 179*8b26181fSAndroid Build Coastguard Worker 180*8b26181fSAndroid Build Coastguard Worker #if ! defined(__HP_aCC) 181*8b26181fSAndroid Build Coastguard Worker /* Not HP C */ 182*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_HP_C_VERSION(major,minor) 0 183*8b26181fSAndroid Build Coastguard Worker #else 184*8b26181fSAndroid Build Coastguard Worker /* HP C */ 185*8b26181fSAndroid Build Coastguard Worker #define PCAP_IS_AT_LEAST_HP_C_VERSION(major,minor) \ 186*8b26181fSAndroid Build Coastguard Worker (__HP_aCC >= ((major)*10000 + (minor)*100)) 187*8b26181fSAndroid Build Coastguard Worker #endif 188*8b26181fSAndroid Build Coastguard Worker 189*8b26181fSAndroid Build Coastguard Worker #endif /* lib_pcap_compiler_tests_h */ 190