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bac3f93772
Add `STATIC_ASSERT` macro that uses `_Static_assert` if available (was introduced with gcc 4.6, see https://gcc.gnu.org/wiki/C11Status). For example, this could be used for the verification of structure sizes at compile time. Acked-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
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* s390-tools/include/zt_common.h
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* common s390-tools definitions.
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*
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* Copyright IBM Corp. 2004, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*
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*/
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#ifndef LIB_ZT_COMMON_H
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#define LIB_ZT_COMMON_H
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#define STRINGIFY_1(x) #x
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#define STRINGIFY(x) STRINGIFY_1(x)
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#ifdef UNUSED
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#elif defined(__GNUC__)
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# define UNUSED(x) UNUSED_ ## x __attribute__((unused))
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#else
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# define UNUSED(x) x
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#endif
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#ifdef STATIC_ASSERT
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#elif defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || __GNUC__ >= 5)
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# define STATIC_ASSERT(test) _Static_assert((test), "(" #test ") failed");
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#else
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# define STATIC_ASSERT(test)
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#endif
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#define RELEASE_STRING STRINGIFY (S390_TOOLS_RELEASE)
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#define TOOLS_LIBDIR STRINGIFY (S390_TOOLS_LIBDIR)
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#define TOOLS_SYSCONFDIR STRINGIFY (S390_TOOLS_SYSCONFDIR)
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#define TOOLS_BINDIR STRINGIFY (S390_TOOLS_BINDIR)
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#define __noreturn __attribute__((noreturn))
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#define __packed __attribute__((packed))
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#define __aligned(x) __attribute__((aligned(x)))
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#define __may_alias __attribute__((may_alias))
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#define __section(x) __attribute__((__section__(#x)))
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#define __noinline __attribute__((__noinline__))
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typedef unsigned long long u64;
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typedef signed long long s64;
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typedef unsigned int u32;
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typedef signed int s32;
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typedef unsigned short int u16;
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typedef signed short int s16;
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typedef unsigned char u8;
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typedef signed char s8;
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#endif /* LIB_ZT_COMMON_H */
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