Revert "annotations: add positions"

This reverts commit baa1d2cf78.

Turns out this introduced memory badness.  valgrind picks it up on
x86, but it straight out SEGVs on x86.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

dtc-parser.y

@@ -180,10 +180,7 @@ devicetree:
 			 */
 			if (!($<flags>-1 & DTSF_PLUGIN))
 				ERROR(&@2, "Label or path %s not found", $1);
-			$$ = add_orphan_node(
-					name_node(build_node(NULL, NULL, NULL),
-						  ""),
-					$2, $1);
+			$$ = add_orphan_node(name_node(build_node(NULL, NULL), ""), $2, $1);
 		}
 	| devicetree DT_LABEL dt_ref nodedef
 		{
@@ -263,7 +260,7 @@ devicetree:
 nodedef:
 	  '{' proplist subnodes '}' ';'
 		{
-			$$ = build_node($2, $3, &@$);
+			$$ = build_node($2, $3);
 		}
 	;
 
@@ -281,11 +278,11 @@ proplist:
 propdef:
 	  DT_PROPNODENAME '=' propdata ';'
 		{
-			$$ = build_property($1, $3, &@$);
+			$$ = build_property($1, $3);
 		}
 	| DT_PROPNODENAME ';'
 		{
-			$$ = build_property($1, empty_data, &@$);
+			$$ = build_property($1, empty_data);
 		}
 	| DT_DEL_PROP DT_PROPNODENAME ';'
 		{
@@ -566,7 +563,7 @@ subnode:
 		}
 	| DT_DEL_NODE DT_PROPNODENAME ';'
 		{
-			$$ = name_node(build_node_delete(&@$), $2);
+			$$ = name_node(build_node_delete(), $2);
 		}
 	| DT_OMIT_NO_REF subnode
 		{

dtc.h

@@ -158,7 +158,6 @@ struct property {
 	struct property *next;
 
 	struct label *labels;
-	struct srcpos *srcpos;
 };
 
 struct node {
@@ -178,7 +177,6 @@ struct node {
 
 	struct label *labels;
 	const struct bus_type *bus;
-	struct srcpos *srcpos;
 
 	bool omit_if_unused, is_referenced;
 };
@@ -207,15 +205,13 @@ struct node {
 void add_label(struct label **labels, char *label);
 void delete_labels(struct label **labels);
 
-struct property *build_property(char *name, struct data val,
-				struct srcpos *srcpos);
+struct property *build_property(char *name, struct data val);
 struct property *build_property_delete(char *name);
 struct property *chain_property(struct property *first, struct property *list);
 struct property *reverse_properties(struct property *first);
 
-struct node *build_node(struct property *proplist, struct node *children,
-			struct srcpos *srcpos);
-struct node *build_node_delete(struct srcpos *srcpos);
+struct node *build_node(struct property *proplist, struct node *children);
+struct node *build_node_delete(void);
 struct node *name_node(struct node *node, char *name);
 struct node *omit_node_if_unused(struct node *node);
 struct node *reference_node(struct node *node);

flattree.c

@@ -692,7 +692,7 @@ static struct property *flat_read_property(struct inbuf *dtbuf,
 
 	val = flat_read_data(dtbuf, proplen);
 
-	return build_property(name, val, NULL);
+	return build_property(name, val);
 }
 
 
@@ -750,7 +750,7 @@ static struct node *unflatten_tree(struct inbuf *dtbuf,
 	char *flatname;
 	uint32_t val;
 
-	node = build_node(NULL, NULL, NULL);
+	node = build_node(NULL, NULL);
 
 	flatname = flat_read_string(dtbuf);
 

fstree.c

@@ -34,7 +34,7 @@ static struct node *read_fstree(const char *dirname)
 	if (!d)
 		die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno));
 
-	tree = build_node(NULL, NULL, NULL);
+	tree = build_node(NULL, NULL);
 
 	while ((de = readdir(d)) != NULL) {
 		char *tmpname;
@@ -60,8 +60,7 @@ static struct node *read_fstree(const char *dirname)
 			} else {
 				prop = build_property(xstrdup(de->d_name),
 						      data_copy_file(pfile,
-								     st.st_size),
-						      NULL);
+								     st.st_size));
 				add_property(tree, prop);
 				fclose(pfile);
 			}

livetree.c

@@ -19,7 +19,6 @@
  */
 
 #include "dtc.h"
-#include "srcpos.h"
 
 /*
  * Tree building functions
@@ -51,8 +50,7 @@ void delete_labels(struct label **labels)
 		label->deleted = 1;
 }
 
-struct property *build_property(char *name, struct data val,
-				struct srcpos *srcpos)
+struct property *build_property(char *name, struct data val)
 {
 	struct property *new = xmalloc(sizeof(*new));
 
@@ -60,7 +58,6 @@ struct property *build_property(char *name, struct data val,
 
 	new->name = name;
 	new->val = val;
-	new->srcpos = srcpos_copy(srcpos);
 
 	return new;
 }
@@ -100,8 +97,7 @@ struct property *reverse_properties(struct property *first)
 	return head;
 }
 
-struct node *build_node(struct property *proplist, struct node *children,
-			struct srcpos *srcpos)
+struct node *build_node(struct property *proplist, struct node *children)
 {
 	struct node *new = xmalloc(sizeof(*new));
 	struct node *child;
@@ -110,7 +106,6 @@ struct node *build_node(struct property *proplist, struct node *children,
 
 	new->proplist = reverse_properties(proplist);
 	new->children = children;
-	new->srcpos = srcpos_copy(srcpos);
 
 	for_each_child(new, child) {
 		child->parent = new;
@@ -119,14 +114,13 @@ struct node *build_node(struct property *proplist, struct node *children,
 	return new;
 }
 
-struct node *build_node_delete(struct srcpos *srcpos)
+struct node *build_node_delete(void)
 {
 	struct node *new = xmalloc(sizeof(*new));
 
 	memset(new, 0, sizeof(*new));
 
 	new->deleted = 1;
-	new->srcpos = srcpos_copy(srcpos);
 
 	return new;
 }
@@ -189,8 +183,6 @@ struct node *merge_nodes(struct node *old_node, struct node *new_node)
 
 				old_prop->val = new_prop->val;
 				old_prop->deleted = 0;
-				free(old_prop->srcpos);
-				old_prop->srcpos = new_prop->srcpos;
 				free(new_prop);
 				new_prop = NULL;
 				break;
@@ -231,8 +223,6 @@ struct node *merge_nodes(struct node *old_node, struct node *new_node)
 			add_child(old_node, new_child);
 	}
 
-	old_node->srcpos = srcpos_extend(old_node->srcpos, new_node->srcpos);
-
 	/* The new node contents are now merged into the old node.  Free
 	 * the new node. */
 	free(new_node);
@@ -251,18 +241,18 @@ struct node * add_orphan_node(struct node *dt, struct node *new_node, char *ref)
 	if (ref[0] == '/') {
 		d = data_append_data(d, ref, strlen(ref) + 1);
 
-		p = build_property("target-path", d, NULL);
+		p = build_property("target-path", d);
 	} else {
 		d = data_add_marker(d, REF_PHANDLE, ref);
 		d = data_append_integer(d, 0xffffffff, 32);
 
-		p = build_property("target", d, NULL);
+		p = build_property("target", d);
 	}
 
 	xasprintf(&name, "fragment@%u",
 			next_orphan_fragment++);
 	name_node(new_node, "__overlay__");
-	node = build_node(p, new_node, NULL);
+	node = build_node(p, new_node);
 	name_node(node, name);
 
 	add_child(dt, node);
@@ -361,7 +351,7 @@ void append_to_property(struct node *node,
 		p->val = d;
 	} else {
 		d = data_append_data(empty_data, data, len);
-		p = build_property(name, d, NULL);
+		p = build_property(name, d);
 		add_property(node, p);
 	}
 }
@@ -619,11 +609,11 @@ cell_t get_node_phandle(struct node *root, struct node *node)
 
 	if (!get_property(node, "linux,phandle")
 	    && (phandle_format & PHANDLE_LEGACY))
-		add_property(node, build_property("linux,phandle", d, NULL));
+		add_property(node, build_property("linux,phandle", d));
 
 	if (!get_property(node, "phandle")
 	    && (phandle_format & PHANDLE_EPAPR))
-		add_property(node, build_property("phandle", d, NULL));
+		add_property(node, build_property("phandle", d));
 
 	/* If the node *does* have a phandle property, we must
 	 * be dealing with a self-referencing phandle, which will be
@@ -797,7 +787,7 @@ static struct node *build_and_name_child_node(struct node *parent, char *name)
 {
 	struct node *node;
 
-	node = build_node(NULL, NULL, NULL);
+	node = build_node(NULL, NULL);
 	name_node(node, xstrdup(name));
 	add_child(parent, node);
 
@@ -859,8 +849,7 @@ static void generate_label_tree_internal(struct dt_info *dti,
 			/* insert it */
 			p = build_property(l->label,
 				data_copy_mem(node->fullpath,
-						strlen(node->fullpath) + 1),
-				NULL);
+						strlen(node->fullpath) + 1));
 			add_property(an, p);
 		}
 

srcpos.c

@@ -207,7 +207,6 @@ struct srcpos srcpos_empty = {
 	.last_line = 0,
 	.last_column = 0,
 	.file = NULL,
-	.next = NULL,
 };
 
 void srcpos_update(struct srcpos *pos, const char *text, int len)
@@ -235,34 +234,13 @@ struct srcpos *
 srcpos_copy(struct srcpos *pos)
 {
 	struct srcpos *pos_new;
-	struct srcfile_state *srcfile_state;
-
-	if (!pos)
-		return NULL;
 
 	pos_new = xmalloc(sizeof(struct srcpos));
 	memcpy(pos_new, pos, sizeof(struct srcpos));
 
-	/* allocate without free */
-	srcfile_state = xmalloc(sizeof(struct srcfile_state));
-	memcpy(srcfile_state, pos->file, sizeof(struct srcfile_state));
-	pos_new->file = srcfile_state;
-
 	return pos_new;
 }
 
-struct srcpos *srcpos_extend(struct srcpos *pos, struct srcpos *newtail)
-{
-	struct srcpos *p;
-
-	if (!pos)
-		return newtail;
-
-	for (p = pos; p->next != NULL; p = p->next);
-	p->next = newtail;
-	return pos;
-}
-
 char *
 srcpos_string(struct srcpos *pos)
 {

srcpos.h

@@ -74,7 +74,6 @@ struct srcpos {
     int last_line;
     int last_column;
     struct srcfile_state *file;
-    struct srcpos *next;
 };
 
 #define YYLTYPE struct srcpos
@@ -106,8 +105,6 @@ extern struct srcpos srcpos_empty;
 
 extern void srcpos_update(struct srcpos *pos, const char *text, int len);
 extern struct srcpos *srcpos_copy(struct srcpos *pos);
-extern struct srcpos *srcpos_extend(struct srcpos *new_srcpos,
-				    struct srcpos *old_srcpos);
 extern char *srcpos_string(struct srcpos *pos);
 
 extern void PRINTF(3, 0) srcpos_verror(struct srcpos *pos, const char *prefix,