| 1 |
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| 2 | #ifndef _UAPI__ASM_GENERIC_BITS_PER_LONG
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| 3 | #define _UAPI__ASM_GENERIC_BITS_PER_LONG
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| 4 |
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| 5 | #ifndef __BITS_PER_LONG
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| 6 | |
| 7 | * In order to keep safe and avoid regression, only unify uapi
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| 8 | * bitsperlong.h for some archs which are using newer toolchains
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| 9 | * that have the definitions of __CHAR_BIT__ and __SIZEOF_LONG__.
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| 10 | * See the following link for more info:
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| 11 | * https://lore.kernel.org/linux-arch/[email protected]/
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| 12 |
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| 13 | #if defined(__CHAR_BIT__) && defined(__SIZEOF_LONG__)
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| 14 | #define __BITS_PER_LONG (__CHAR_BIT__ * __SIZEOF_LONG__)
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| 15 | #else
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| 16 | |
| 17 | * There seems to be no way of detecting this automatically from user
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| 18 | * space, so 64 bit architectures should override this in their
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| 19 | * bitsperlong.h. In particular, an architecture that supports
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| 20 | * both 32 and 64 bit user space must not rely on CONFIG_64BIT
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| 21 | * to decide it, but rather check a compiler provided macro.
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| 22 |
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| 23 | #define __BITS_PER_LONG 32
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| 24 | #endif
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| 25 | #endif
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| 26 |
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| 27 | #ifndef __BITS_PER_LONG_LONG
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| 28 | #define __BITS_PER_LONG_LONG 64
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| 29 | #endif
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| 30 |
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| 31 | #endif
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