linux_compat.c 716 B

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