Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
tools headers UAPI: Sync linux/const.h with the kernel headers
To pick up the changes in:
947697c6f0f75f98 ("uapi: Define GENMASK_U128")
That causes no changes in tooling, just addresses this perf build
warning:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/const.h include/uapi/linux/const.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Yury Norov <yury.norov@gmail.com>
Link: https://lore.kernel.org/lkml/ZwltGNJwujKu1Fgn@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+17
+17
tools/include/uapi/linux/const.h
+17
tools/include/uapi/linux/const.h
···
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#define _BITUL(x) (_UL(1) << (x))
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#define _BITULL(x) (_ULL(1) << (x))
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#if !defined(__ASSEMBLY__)
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/*
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* Missing asm support
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*
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* __BIT128() would not work in the asm code, as it shifts an
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* 'unsigned __init128' data type as direct representation of
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* 128 bit constants is not supported in the gcc compiler, as
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* they get silently truncated.
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*
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* TODO: Please revisit this implementation when gcc compiler
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* starts representing 128 bit constants directly like long
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* and unsigned long etc. Subsequently drop the comment for
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* GENMASK_U128() which would then start supporting asm code.
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*/
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#define _BIT128(x) ((unsigned __int128)(1) << (x))
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#endif
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#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (__typeof__(x))(a) - 1)
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#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask))
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