#include <malloc.h>

#include <memalign.h>

#include <asm/cache.h>

#include <linux/compat.h>

struct p_current cur = {

  .pid = 1,

};

__maybe_unused struct p_current *current = &cur;

unsigned long copy_from_user(void *dest, const void *src,

         unsigned long count)

{

  memcpy((void *)dest, (void *)src, count);

  return 0;

}

void *kmalloc(size_t size, int flags)

{

  void *p;

  p = malloc_cache_aligned(size);

  if (p && flags & __GFP_ZERO)

    memset(p, 0, size);

  return p;

}

struct kmem_cache *get_mem(int element_sz)

{

  struct kmem_cache *ret;

  ret = memalign(ARCH_DMA_MINALIGN, sizeof(struct kmem_cache));

  ret->sz = element_sz;

  return ret;

}

void *kmem_cache_alloc(struct kmem_cache *obj, int flag)

{

  return malloc_cache_aligned(obj->sz);

}

/**

 * kmemdup - duplicate region of memory

 *

 * @src: memory region to duplicate

 * @len: memory region length

 * @gfp: GFP mask to use

 *

 * Return: newly allocated copy of @src or %NULL in case of error

 */

void *kmemdup(const void *src, size_t len, gfp_t gfp)

{

  void *p;

  p = kmalloc(len, gfp);

  if (p)

    memcpy(p, src, len);

  return p;

}