mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 16:38:12 +00:00
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>
78 lines
1.4 KiB
C
78 lines
1.4 KiB
C
/*
|
|
* asm-generic/int-ll64.h
|
|
*
|
|
* Integer declarations for architectures which use "long long"
|
|
* for 64-bit types.
|
|
*/
|
|
|
|
#ifndef _ASM_GENERIC_INT_LL64_H
|
|
#define _ASM_GENERIC_INT_LL64_H
|
|
|
|
#include <asm/bitsperlong.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
/*
|
|
* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
|
|
* header files exported to user space
|
|
*/
|
|
|
|
typedef __signed__ char __s8;
|
|
typedef unsigned char __u8;
|
|
|
|
typedef __signed__ short __s16;
|
|
typedef unsigned short __u16;
|
|
|
|
typedef __signed__ int __s32;
|
|
typedef unsigned int __u32;
|
|
|
|
#ifdef __GNUC__
|
|
__extension__ typedef __signed__ long long __s64;
|
|
__extension__ typedef unsigned long long __u64;
|
|
#else
|
|
typedef __signed__ long long __s64;
|
|
typedef unsigned long long __u64;
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
typedef signed char s8;
|
|
typedef unsigned char u8;
|
|
|
|
typedef signed short s16;
|
|
typedef unsigned short u16;
|
|
|
|
typedef signed int s32;
|
|
typedef unsigned int u32;
|
|
|
|
typedef signed long long s64;
|
|
typedef unsigned long long u64;
|
|
|
|
#define S8_C(x) x
|
|
#define U8_C(x) x ## U
|
|
#define S16_C(x) x
|
|
#define U16_C(x) x ## U
|
|
#define S32_C(x) x
|
|
#define U32_C(x) x ## U
|
|
#define S64_C(x) x ## LL
|
|
#define U64_C(x) x ## ULL
|
|
|
|
#else /* __ASSEMBLY__ */
|
|
|
|
#define S8_C(x) x
|
|
#define U8_C(x) x
|
|
#define S16_C(x) x
|
|
#define U16_C(x) x
|
|
#define S32_C(x) x
|
|
#define U32_C(x) x
|
|
#define S64_C(x) x
|
|
#define U64_C(x) x
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _ASM_GENERIC_INT_LL64_H */
|