Add U() macro to share constants between C and other sources
This patch adds the U(_x) macros to utils_def.h to allow constants to be shared between C and other sources. Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
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@ -57,16 +57,19 @@
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(((ptr) > UINTPTR_MAX - (inc)) ? 1 : 0)
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(((ptr) > UINTPTR_MAX - (inc)) ? 1 : 0)
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/*
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/*
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* For those constants to be shared between C and other sources, apply a 'ull'
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* For those constants to be shared between C and other sources, apply a 'u'
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* suffix to the argument only in C, to avoid undefined or unintended behaviour.
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* or 'ull' suffix to the argument only in C, to avoid undefined or unintended
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* behaviour.
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*
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*
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* The GNU assembler and linker do not support the 'ull' suffix (it causes the
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* The GNU assembler and linker do not support the 'u' and 'ull' suffix (it
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* build process to fail) therefore the suffix is omitted when used in linker
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* causes the build process to fail) therefore the suffix is omitted when used
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* scripts and assembler files.
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* in linker scripts and assembler files.
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*/
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*/
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#if defined(__LINKER__) || defined(__ASSEMBLY__)
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#if defined(__LINKER__) || defined(__ASSEMBLY__)
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# define U(_x) (_x)
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# define ULL(_x) (_x)
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# define ULL(_x) (_x)
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#else
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#else
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# define U(_x) (_x##u)
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# define ULL(_x) (_x##ull)
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# define ULL(_x) (_x##ull)
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#endif
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#endif
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