1 /* 2 * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_UTILITIES_COMPILERWARNINGS_GCC_HPP 26 #define SHARE_UTILITIES_COMPILERWARNINGS_GCC_HPP 27 28 // Macros related to control of compiler warnings. 29 30 // Diagnostic pragmas like the ones defined below in PRAGMA_FORMAT_NONLITERAL_IGNORED 31 // were only introduced in GCC 4.2. Because we have no other possibility to ignore 32 // these warnings for older versions of GCC, we simply don't decorate our printf-style 33 // functions with __attribute__(format) in that case. 34 #if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2)) || (__GNUC__ > 4) 35 #ifndef ATTRIBUTE_PRINTF 36 #define ATTRIBUTE_PRINTF(fmt,vargs) __attribute__((format(printf, fmt, vargs))) 37 #endif 38 #ifndef ATTRIBUTE_SCANF 39 #define ATTRIBUTE_SCANF(fmt,vargs) __attribute__((format(scanf, fmt, vargs))) 40 #endif 41 #endif // gcc version check 42 43 #define PRAGMA_DISABLE_GCC_WARNING_AUX(x) _Pragma(#x) 44 #define PRAGMA_DISABLE_GCC_WARNING(option_string) \ 45 PRAGMA_DISABLE_GCC_WARNING_AUX(GCC diagnostic ignored option_string) 46 47 #define PRAGMA_FORMAT_NONLITERAL_IGNORED \ 48 PRAGMA_DISABLE_GCC_WARNING("-Wformat-nonliteral") \ 49 PRAGMA_DISABLE_GCC_WARNING("-Wformat-security") 50 51 #define PRAGMA_FORMAT_IGNORED PRAGMA_DISABLE_GCC_WARNING("-Wformat") 52 53 #if defined(__clang_major__) && \ 54 (__clang_major__ >= 4 || \ 55 (__clang_major__ >= 3 && __clang_minor__ >= 1)) || \ 56 ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4) 57 // Tested to work with clang version 3.1 and better. 58 #define PRAGMA_DIAG_PUSH _Pragma("GCC diagnostic push") 59 #define PRAGMA_DIAG_POP _Pragma("GCC diagnostic pop") 60 61 #endif // clang/gcc version check 62 63 #endif // SHARE_UTILITIES_COMPILERWARNINGS_GCC_HPP