Function dt_fix_symbols

src/commonlib/device_tree.c:1808–1829

* Update all /__symbols__ properties in an overlay that start with * "/fragment@X/__overlay__" with corresponding path prefix in the base tree. * * @param symbols /__symbols__ done to update. * @param fragment /fragment@X node that references to should be updated. * @param base_path Path of base tree node that the fragment overlaid. */

 * @param base_path	Path of base tree node that the fragment overlaid.
 */
static void dt_fix_symbols(struct device_tree_node *symbols,
			   struct device_tree_node *fragment,
			   const char *base_path)
{
	struct device_tree_property *prop;
	char buf[512]; /* Should be enough for maximum DT path length? */
	char node_path[64]; /* easily enough for /fragment@XXXX/__overlay__ */

	if (!symbols) /* If the overlay has no /__symbols__ node, we're done! */
		return;

	int len = snprintf(node_path, sizeof(node_path), "/%s/__overlay__",
			   fragment->name);

	list_for_each(prop, symbols->properties, list_node)
		if (!strncmp(prop->prop.data, node_path, len)) {
			prop->prop.size = snprintf(buf, sizeof(buf), "%s%s",
				base_path, (char *)prop->prop.data + len) + 1;
			free(prop->prop.data);
			prop->prop.data = strdup(buf);
		}
}

/*
 * Fix up overlay according to a property in /__fixup__. If the fixed property