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![H. Peter Anvin](/assets/img/avatar_default.png)
Add C99-style constructor macros for fixed types to <asm-generic/int-*.h>. Since Linux uses names like "u64" instead of "uint64_t", the constructor macros are called U64_C() instead of UINT64_C() and so forth. These macros allow specific sizes to be specified as U64_C(0x123456789abcdef), without gcc issuing warnings as it will if one writes (u64)0x123456789abcdef. When used from assembly, these macros pass their argument unchanged. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/*
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* asm-generic/int-ll64.h
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*
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* Integer declarations for architectures which use "long long"
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* for 64-bit types.
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*/
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#ifndef _ASM_GENERIC_INT_LL64_H
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#define _ASM_GENERIC_INT_LL64_H
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#ifndef __ASSEMBLY__
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/*
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* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
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* header files exported to user space
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*/
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typedef __signed__ char __s8;
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typedef unsigned char __u8;
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typedef __signed__ short __s16;
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typedef unsigned short __u16;
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typedef __signed__ int __s32;
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typedef unsigned int __u32;
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#ifdef __GNUC__
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__extension__ typedef __signed__ long long __s64;
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__extension__ typedef unsigned long long __u64;
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#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
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typedef __signed__ long long __s64;
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typedef unsigned long long __u64;
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#endif
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#endif /* __ASSEMBLY__ */
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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typedef signed char s8;
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typedef unsigned char u8;
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typedef signed short s16;
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typedef unsigned short u16;
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typedef signed int s32;
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typedef unsigned int u32;
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typedef signed long long s64;
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typedef unsigned long long u64;
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#define S8_C(x) x
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#define U8_C(x) x ## U
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#define S16_C(x) x
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#define U16_C(x) x ## U
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#define S32_C(x) x
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#define U32_C(x) x ## U
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#define S64_C(x) x ## LL
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#define U64_C(x) x ## ULL
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#else /* __ASSEMBLY__ */
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#define S8_C(x) x
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#define U8_C(x) x
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#define S16_C(x) x
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#define U16_C(x) x
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#define S32_C(x) x
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#define U32_C(x) x
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#define S64_C(x) x
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#define U64_C(x) x
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* _ASM_GENERIC_INT_LL64_H */
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