88 lines
3.2 KiB
C++
88 lines
3.2 KiB
C++
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/*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_UTILITIES_COMPILERWARNINGS_HPP
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#define SHARE_VM_UTILITIES_COMPILERWARNINGS_HPP
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// Macros related to control of compiler warnings.
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// We presently only have interesting macros here for gcc and variants,
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// so it's not worth going through the COMPILER_HEADER() dispatch, with
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// all the non-gcc files being empty.
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#ifdef TARGET_COMPILER_gcc
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// Diagnostic pragmas like the ones defined below in PRAGMA_FORMAT_NONLITERAL_IGNORED
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// were only introduced in GCC 4.2. Because we have no other possibility to ignore
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// these warnings for older versions of GCC, we simply don't decorate our printf-style
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// functions with __attribute__(format) in that case.
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#if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2)) || (__GNUC__ > 4)
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#ifndef ATTRIBUTE_PRINTF
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#define ATTRIBUTE_PRINTF(fmt,vargs) __attribute__((format(printf, fmt, vargs)))
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#endif
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#ifndef ATTRIBUTE_SCANF
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#define ATTRIBUTE_SCANF(fmt,vargs) __attribute__((format(scanf, fmt, vargs)))
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#endif
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#endif // gcc version check
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#define PRAGMA_FORMAT_NONLITERAL_IGNORED _Pragma("GCC diagnostic ignored \"-Wformat-nonliteral\"") \
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_Pragma("GCC diagnostic ignored \"-Wformat-security\"")
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#define PRAGMA_FORMAT_IGNORED _Pragma("GCC diagnostic ignored \"-Wformat\"")
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#if defined(__clang_major__) && \
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(__clang_major__ >= 4 || \
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(__clang_major__ >= 3 && __clang_minor__ >= 1)) || \
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((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
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// Tested to work with clang version 3.1 and better.
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#define PRAGMA_DIAG_PUSH _Pragma("GCC diagnostic push")
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#define PRAGMA_DIAG_POP _Pragma("GCC diagnostic pop")
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#endif // clang/gcc version check
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#endif // TARGET_COMPILER_gcc
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// Defaults when not defined for the TARGET_COMPILER_xxx.
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#ifndef ATTRIBUTE_PRINTF
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#define ATTRIBUTE_PRINTF(fmt, vargs)
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#endif
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#ifndef ATTRIBUTE_SCANF
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#define ATTRIBUTE_SCANF(fmt, vargs)
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#endif
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#ifndef PRAGMA_FORMAT_NONLITERAL_IGNORED
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#define PRAGMA_FORMAT_NONLITERAL_IGNORED
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#endif
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#ifndef PRAGMA_FORMAT_IGNORED
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#define PRAGMA_FORMAT_IGNORED
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#endif
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#ifndef PRAGMA_DIAG_PUSH
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#define PRAGMA_DIAG_PUSH
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#endif
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#ifndef PRAGMA_DIAG_POP
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#define PRAGMA_DIAG_POP
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#endif
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#endif // SHARE_VM_UTILITIES_COMPILERWARNINGS_HPP
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