Function lwp_map_user

components/lwp/lwp_user_mm.c:235–256

}

void *lwp_map_user(struct rt_lwp *lwp, void *map_va, size_t map_size, int text)
{
    void *ret = RT_NULL;
    size_t offset = 0;

    if (!map_size)
    {
        return 0;
    }
    offset = (size_t)map_va & ARCH_PAGE_MASK;
    map_size += (offset + ARCH_PAGE_SIZE - 1);
    map_size &= ~ARCH_PAGE_MASK;
    map_va = (void *)((size_t)map_va & ~ARCH_PAGE_MASK);

    ret = _lwp_map_user(lwp, map_va, map_size, text);

    if (ret)
    {
        ret = (void *)((char *)ret + offset);
    }
    return ret;
}

static inline size_t _flags_to_attr(size_t flags)
{