diff options
| author | Varun Wadekar <vwadekar@nvidia.com> | 2017-05-18 10:32:51 -0700 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2017-06-14 16:58:46 -0700 |
| commit | 6176b4fcb4175a25d918345a729cce560b9356c2 (patch) | |
| tree | bad5f0634018d0f698effc7d66b8afd13fe4be36 /include | |
| parent | fb7d32e5881ef2445e8fe2305005f5590d4a7cfa (diff) | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/lib/utils_def.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/include/lib/utils_def.h b/include/lib/utils_def.h index 98e78347..52496000 100644 --- a/include/lib/utils_def.h +++ b/include/lib/utils_def.h @@ -57,16 +57,19 @@ (((ptr) > UINTPTR_MAX - (inc)) ? 1 : 0) /* - * For those constants to be shared between C and other sources, apply a 'ull' - * suffix to the argument only in C, to avoid undefined or unintended behaviour. + * For those constants to be shared between C and other sources, apply a 'u' + * or 'ull' suffix to the argument only in C, to avoid undefined or unintended + * behaviour. * - * The GNU assembler and linker do not support the 'ull' suffix (it causes the - * build process to fail) therefore the suffix is omitted when used in linker - * scripts and assembler files. + * The GNU assembler and linker do not support the 'u' and 'ull' suffix (it + * causes the build process to fail) therefore the suffix is omitted when used + * in linker scripts and assembler files. */ #if defined(__LINKER__) || defined(__ASSEMBLY__) +# define U(_x) (_x) # define ULL(_x) (_x) #else +# define U(_x) (_x##u) # define ULL(_x) (_x##ull) #endif |