3ece5ac40c
There wasn't an equivalent to align down so add ALIGN_DOWN. For symmetry provide an ALIGN_UP macro as well. Change-Id: I7033109311eeb15c8c69c649878785378790feb9 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/2951 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
23 lines
617 B
C
23 lines
617 B
C
#ifndef STDLIB_H
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#define STDLIB_H
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#include <stddef.h>
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
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#define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1UL)
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#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
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#define ALIGN_UP(x,a) ALIGN((x),(a))
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#define ALIGN_DOWN(x,a) ((x) & ~((typeof(x))(a)-1UL))
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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#if !defined(__PRE_RAM__)
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void *memalign(size_t boundary, size_t size);
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void *malloc(size_t size);
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/* We never free memory */
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static inline void free(void *ptr) {}
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#endif
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#endif /* STDLIB_H */
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