2a00f026a1
It was set based on CONFIG_64BIT, that is available only when using Kconfig, which we're working towards but not to the point of having this CONFIG variable set, so synthesize it from available compiler defined defines, __SIZEOF_LONG__ or, lacking that, __WORDSIZE. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-og5fmkr17856lhupacihwxvb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
40 lines
864 B
C
40 lines
864 B
C
#ifndef __ASM_GENERIC_BITS_PER_LONG
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#define __ASM_GENERIC_BITS_PER_LONG
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#include <uapi/asm-generic/bitsperlong.h>
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/*
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* In the kernel, where this file comes from, we can rely on CONFIG_64BIT,
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* here we have to make amends with what the various compilers provides us
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* to figure out if we're on a 64-bit machine...
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*/
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#ifdef __SIZEOF_LONG__
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# if __SIZEOF_LONG__ == 8
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# define CONFIG_64BIT
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# endif
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#else
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# ifdef __WORDSIZE
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# if __WORDSIZE == 64
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# define CONFIG_64BIT
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# endif
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# else
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# error Failed to determine BITS_PER_LONG value
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# endif
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#endif
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#ifdef CONFIG_64BIT
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#define BITS_PER_LONG 64
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#else
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#define BITS_PER_LONG 32
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#endif /* CONFIG_64BIT */
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#if BITS_PER_LONG != __BITS_PER_LONG
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#error Inconsistent word size. Check asm/bitsperlong.h
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#endif
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#ifndef BITS_PER_LONG_LONG
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#define BITS_PER_LONG_LONG 64
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#endif
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#endif /* __ASM_GENERIC_BITS_PER_LONG */
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