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https://github.com/xen-project/xen.git
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Keir Fraser
ce5c899f22
This makes stubdom use the host's gcc instead of downloading/compiling binutils+gcc. That requires a bunch of changes and even uncovered a few bugs, but saves a lot of time. Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
45 lines
1.1 KiB
C
45 lines
1.1 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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#define malloc(size) _xmalloc(size, DEFAULT_ALIGN)
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#define free(ptr) xfree(ptr)
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#define realloc(ptr, size) _realloc(ptr, size)
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/* Free any of the above. */
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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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extern void *_realloc(void *ptr, size_t size);
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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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