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utils_def: add an assembly version for GENMASK 

When compiling assembly files, stdint.h is not included.
UINT32_C and UINT64_C are then not defined.
A new GENMASK macro for assembly is then created.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
This commit is contained in:
Yann Gautier 2018-11-15 09:49:24 +01:00
parent 35c4b414be
commit 46c613ee0a
1 changed files with 8 additions and 0 deletions
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8
include/lib/utils_def.h
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@ -30,11 +30,19 @@
* position @h. For example
* GENMASK_64(39, 21) gives us the 64bit vector 0x000000ffffe00000.
*/
#if defined(__LINKER__) || defined(__ASSEMBLY__)
#define GENMASK_32(h, l) \
(((0xFFFFFFFF) << (l)) & (0xFFFFFFFF >> (32 - 1 - (h))))
#define GENMASK_64(h, l) \
((~0 << (l)) & (~0 >> (64 - 1 - (h))))
#else
#define GENMASK_32(h, l) \
(((~UINT32_C(0)) << (l)) & (~UINT32_C(0) >> (32 - 1 - (h))))
#define GENMASK_64(h, l) \
(((~UINT64_C(0)) << (l)) & (~UINT64_C(0) >> (64 - 1 - (h))))
#endif
#ifdef AARCH32
#define GENMASK GENMASK_32