u-boot/lib/linux_compat.c

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#include <common.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)
{
return memalign(ARCH_DMA_MINALIGN, size);
}
void *kzalloc(size_t size, int flags)
{
void *ptr = kmalloc(size, flags);
memset(ptr, 0, size);
return ptr;
}
void *vzalloc(unsigned long size)
{
return kzalloc(size, 0);
}
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 memalign(ARCH_DMA_MINALIGN, obj->sz);
}