Function add_topswap_bootblock

util/cbfstool/cbfstool.c:870–906

}

static int add_topswap_bootblock(struct buffer *buffer, uint32_t *offset)
{
	size_t bb_buf_size = buffer_size(buffer);

	if (bb_buf_size > param.topswap_size) {
		ERROR("Bootblock bigger than the topswap boundary\n");
		ERROR("size = %zd, ts = %d\n", bb_buf_size,
							param.topswap_size);
		return 1;
	}

	/*
	 * Allocate topswap_size*2 bytes for bootblock to
	 * accommodate the second bootblock.
	 */
	struct buffer new_bootblock, bb1, bb2;
	if (buffer_create(&new_bootblock, 2 * param.topswap_size,
							buffer->name))
		return 1;

	buffer_splice(&bb1, &new_bootblock, param.topswap_size - bb_buf_size,
							bb_buf_size);
	buffer_splice(&bb2, &new_bootblock,
				buffer_size(&new_bootblock) - bb_buf_size,
							bb_buf_size);

	/* Copy to first bootblock */
	memcpy(buffer_get(&bb1), buffer_get(buffer), bb_buf_size);
	/* Copy to second bootblock */
	memcpy(buffer_get(&bb2), buffer_get(buffer), bb_buf_size);

	buffer_delete(buffer);
	buffer_clone(buffer, &new_bootblock);

	 /* Update the location (offset) of bootblock in the region */
	return convert_region_offset(buffer_size(buffer), offset);
}

static int cbfs_add_component(const char *filename,
			      const char *name,