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generated by cgit v1.2.3 (git 2.25.1) at 2025-12-21 09:52:48 +0000
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#ifndef __XMALLOC_H__
#define __XMALLOC_H__

#include <xen/types.h>
#include <xen/cache.h>

/*
 * Xen malloc/free-style interface.
 */

/* Allocate space for typed object. */
#define xmalloc(_type) ((_type *)_xmalloc(sizeof(_type), __alignof__(_type)))
#define xzalloc(_type) ((_type *)_xzalloc(sizeof(_type), __alignof__(_type)))

/* Allocate space for array of typed objects. */
#define xmalloc_array(_type, _num) \
    ((_type *)_xmalloc_array(sizeof(_type), __alignof__(_type), _num))
#define xzalloc_array(_type, _num) \
    ((_type *)_xzalloc_array(sizeof(_type), __alignof__(_type), _num))

/* Allocate untyped storage. */
#define xmalloc_bytes(_bytes) _xmalloc(_bytes, SMP_CACHE_BYTES)
#define xzalloc_bytes(_bytes) _xzalloc(_bytes, SMP_CACHE_BYTES)

/* Free any of the above. */
extern void xfree(void *);

/* Underlying functions */
extern void *_xmalloc(unsigned long size, unsigned long align);
extern void *_xzalloc(unsigned long size, unsigned long align);

static inline void *_xmalloc_array(
    unsigned long size, unsigned long align, unsigned long num)
{
	/* Check for overflow. */
	if (size && num > UINT_MAX / size)