c06fb25d1f
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28 lines
1023 B
C
28 lines
1023 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef __ASM_GENERIC_BITS_PER_LONG
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#define __ASM_GENERIC_BITS_PER_LONG
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#ifndef __BITS_PER_LONG
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/*
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* In order to keep safe and avoid regression, only unify uapi
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* bitsperlong.h for some archs which are using newer toolchains
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* that have the definitions of __CHAR_BIT__ and __SIZEOF_LONG__.
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* See the following link for more info:
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* https://lore.kernel.org/linux-arch/b9624545-2c80-49a1-ac3c-39264a591f7b@app.fastmail.com/
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*/
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#if defined(__CHAR_BIT__) && defined(__SIZEOF_LONG__)
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#define __BITS_PER_LONG (__CHAR_BIT__ * __SIZEOF_LONG__)
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#else
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/*
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* There seems to be no way of detecting this automatically from user
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* space, so 64 bit architectures should override this in their
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* bitsperlong.h. In particular, an architecture that supports
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* both 32 and 64 bit user space must not rely on CONFIG_64BIT
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* to decide it, but rather check a compiler provided macro.
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*/
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#define __BITS_PER_LONG 32
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#endif
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#endif
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#endif /* __ASM_GENERIC_BITS_PER_LONG */
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