Function memalign

src/lib/malloc.c:22–56

We don't restrict the boundary. This is firmware, * you are supposed to know what you are doing. */

 * you are supposed to know what you are doing.
 */
void *memalign(size_t boundary, size_t size)
{
	void *p;

	MALLOCDBG("%s Enter, boundary %zu, size %zu, free_mem_ptr %p\n",
		__func__, boundary, size, free_mem_ptr);

	free_mem_ptr = (void *)ALIGN_UP((unsigned long)free_mem_ptr, boundary);

	p = free_mem_ptr;
	free_mem_ptr += size;
	/*
	 * Store last allocation pointer after ALIGN, as malloc() will
	 * return it. This may cause n bytes of gap between allocations
	 * where n < boundary.
	 */
	free_last_alloc_ptr = p;

	if (free_mem_ptr >= free_mem_end_ptr) {
		printk(BIOS_ERR, "%s(boundary=%zu, size=%zu): failed: ",
				__func__, boundary, size);
		printk(BIOS_ERR, "Tried to round up free_mem_ptr %p to %p\n",
				p, free_mem_ptr);
		printk(BIOS_ERR, "but free_mem_end_ptr is %p\n",
				free_mem_end_ptr);
		printk(BIOS_ERR, "Error! %s: Out of memory "
				"(free_mem_ptr >= free_mem_end_ptr)",
				__func__);
		return NULL;
	}

	MALLOCDBG("%s %p\n", __func__, p);

	return p;
}

void *malloc(size_t size)
{