ia64/xen-unstable

annotate extras/mini-os/include/xmalloc.h @ 13878:9d103e5fd471

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[XEN] Fix typos in comment describing 32on64 memory layout

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
author Ian Campbell <ian.campbell@xensource.com>
date Thu Feb 08 12:33:32 2007 +0000 (2007-02-08)
parents 7557f0b4098c
children 8984cc0a1d80
rev   line source
kaf24@6446 1 #ifndef __XMALLOC_H__
kaf24@6446 2 #define __XMALLOC_H__
kaf24@6446 3
kaf24@6446 4 /* Allocate space for typed object. */
kaf24@6446 5 #define xmalloc(_type) ((_type *)_xmalloc(sizeof(_type), __alignof__(_type)))
kaf24@6446 6
kaf24@6446 7 /* Allocate space for array of typed objects. */
kaf24@6446 8 #define xmalloc_array(_type, _num) ((_type *)_xmalloc_array(sizeof(_type), __alignof__(_type), _num))
kaf24@6446 9
kaf24@8284 10 #define malloc(size) _xmalloc(size, 4)
kaf24@8284 11 #define free(ptr) xfree(ptr)
kaf24@8284 12
kaf24@6446 13 /* Free any of the above. */
kaf24@6446 14 extern void xfree(const void *);
kaf24@6446 15
kaf24@6446 16 /* Underlying functions */
kaf24@6446 17 extern void *_xmalloc(size_t size, size_t align);
kaf24@6446 18 static inline void *_xmalloc_array(size_t size, size_t align, size_t num)
kaf24@6446 19 {
kaf24@6446 20 /* Check for overflow. */
kaf24@6446 21 if (size && num > UINT_MAX / size)
kaf24@6446 22 return NULL;
kaf24@6446 23 return _xmalloc(size * num, align);
kaf24@6446 24 }
kaf24@6446 25
kaf24@6446 26 #endif /* __XMALLOC_H__ */