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David Vrabel
122b798641
Various fixes to mini-os needed to build lwip 1.3.2: - Don't build the tests. - Add BSD-style endianness macros to endian.h. - free() is called via a function pointer so it needs to be a real function. Do the same for malloc() and realloc(). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Committed-by: Keir Fraser <keir@xen.org>
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
#ifndef __XMALLOC_H__
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#define __XMALLOC_H__
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#ifdef HAVE_LIBC
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#include <stdlib.h>
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#include <malloc.h>
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/* Allocate space for typed object. */
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#define _xmalloc(size, align) memalign(align, size)
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#define xfree(ptr) free(ptr)
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#else
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#include <limits.h>
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#define DEFAULT_ALIGN (sizeof(unsigned long))
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extern void *malloc(size_t size);
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extern void *realloc(void *ptr, size_t size);
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extern void free(void *ptr);
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/* Free memory from any xmalloc*() call. */
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extern void xfree(const void *);
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/* Underlying functions */
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extern void *_xmalloc(size_t size, size_t align);
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#endif
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static inline void *_xmalloc_array(size_t size, size_t align, size_t num)
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{
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/* Check for overflow. */
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if (size && num > UINT_MAX / size)
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return NULL;
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return _xmalloc(size * num, align);
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}
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/* Allocate space for typed object. */
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#define xmalloc(_type) ((_type *)_xmalloc(sizeof(_type), __alignof__(_type)))
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/* Allocate space for array of typed objects. */
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#define xmalloc_array(_type, _num) ((_type *)_xmalloc_array(sizeof(_type), __alignof__(_type), _num))
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#endif /* __XMALLOC_H__ */
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