lib/linux_compat.c

   1
   2 #include <common.h>
   3 #include <linux/compat.h>
   4
   5 struct p_current cur = {
   6         .pid = 1,
   7 };
   8 __maybe_unused struct p_current *current = &cur;
   9
  10 unsigned long copy_from_user(void *dest, const void *src,
  11                      unsigned long count)
  12 {
  13         memcpy((void *)dest, (void *)src, count);
  14         return 0;
  15 }
  16
  17 void *kmalloc(size_t size, int flags)
  18 {
  19         void *p;
  20
  21         p = memalign(ARCH_DMA_MINALIGN, size);
  22         if (flags & __GFP_ZERO)
  23                 memset(p, 0, size);
  24
  25         return p;
  26 }
  27
  28 struct kmem_cache *get_mem(int element_sz)
  29 {
  30         struct kmem_cache *ret;
  31
  32         ret = memalign(ARCH_DMA_MINALIGN, sizeof(struct kmem_cache));
  33         ret->sz = element_sz;
  34
  35         return ret;
  36 }
  37
  38 void *kmem_cache_alloc(struct kmem_cache *obj, int flag)
  39 {
  40         return memalign(ARCH_DMA_MINALIGN, obj->sz);
  41 }