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Optionally (on USE_CACHE_ALIGN) extend overhead structure to align

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returned addresses on 16-byte cacheline boundary.
This commit is contained in:
Jack Jansen 1997-02-01 23:44:50 +00:00
parent 4f6ecdaacf
commit b4ef4c6d4c
1 changed files with 7 additions and 0 deletions
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7
Mac/mwerks/malloc/malloc.c
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@ -61,6 +61,8 @@ static char *rcsid = "$Id$";
#define VCHECK
#endif /* USE_MALLOC_DEBUG */
#define USE_CACHE_ALIGN /* Define for aligning everything on 16-byte boundaries */
typedef unsigned char u_char;
typedef unsigned long u_long;
typedef unsigned int u_int;
@ -102,6 +104,11 @@ union overhead {
#define ov_index ovu.ovu_index
#define ov_rmagic ovu.ovu_rmagic
#define ov_size ovu.ovu_size
#ifdef USE_CACHE_ALIGN
struct cachealigner {
u_long ovalign_1, ovalign_2, ovalign_3, ovalign_4;
};
#endif /* USE_CACHE_ALIGN */
};
#define MAGIC 0xef /* magic # on accounting info */