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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c31ae4bb4a
This provides a reliable way for asm-generic/types.h and other files to find out if it is running on a 32 or 64 bit platform. We cannot use CONFIG_64BIT for this in headers that are included from user space because CONFIG symbols are not available there. We also cannot do it inside of asm/types.h because some headers need the word size but cannot include types.h. The solution is to introduce a new header <asm/bitsperlong.h> that defines both __BITS_PER_LONG for user space and BITS_PER_LONG for usage in the kernel. The asm-generic version falls back to 32 bit unless the architecture overrides it, which I did for all 64 bit platforms. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
/*
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* asm-generic/int-l64.h
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*
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* Integer declarations for architectures which use "long"
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* for 64-bit types.
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*/
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#ifndef _ASM_GENERIC_INT_L64_H
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#define _ASM_GENERIC_INT_L64_H
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#include <asm/bitsperlong.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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typedef __signed__ long __s64;
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typedef unsigned long __u64;
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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 s64;
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typedef unsigned 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 ## L
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#define U64_C(x) x ## UL
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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_L64_H */
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