X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=attribute.c;fp=attribute.c;h=805943507a785899632f57a0110ce1afb09a7c12;hb=39f037e698ced8645048043c73e9797bdecd3360;hp=a29299a55c6ea994fb0c2251f6de7b61702af2c8;hpb=ef3b0164cbb6c9d616c3fdad92fb8da669e4b5d7;p=cparser

diff --git a/attribute.c b/attribute.c
index a29299a..8059435 100644
--- a/attribute.c
+++ b/attribute.c
@@ -295,6 +295,38 @@ static void handle_attribute_asm(const attribute_t *attribute,
 	return;
 }
 
+static void handle_attribute_alias(const attribute_t *attribute,
+                                  entity_t *entity)
+{
+	// TODO: return if not at function_scope
+	attribute_argument_t *arg = attribute->a.arguments;
+	if (arg == NULL) {
+		errorf(&attribute->pos,
+		       "__attribute__((alias(X))) misses argument");
+		return;
+	}
+	const char *string = get_argument_string(arg);
+	if (string == NULL) {
+		errorf(&attribute->pos,
+		       "__attribute__((alias(X))) argument is not a string");
+		return;
+	}
+	symbol_t *symbol = symbol_table_insert(string);
+
+	switch (entity->kind) {
+	case ENTITY_VARIABLE:
+		entity->variable.alias = symbol;
+		break;
+	case ENTITY_FUNCTION:
+		entity->function.alias = symbol;
+		break;
+	default:
+		warningf(WARN_OTHER, &attribute->pos, "alias attribute on '%N' ignored", entity);
+		break;
+	}
+	return;
+}
+
 void handle_entity_attributes(const attribute_t *attributes, entity_t *entity)
 {
 	if (entity->kind == ENTITY_TYPEDEF) {
@@ -338,6 +370,10 @@ void handle_entity_attributes(const attribute_t *attributes, entity_t *entity)
 		case ATTRIBUTE_MS_RESTRICT:      modifiers |= DM_RESTRICT; break;
 		case ATTRIBUTE_MS_NOALIAS:       modifiers |= DM_NOALIAS; break;
 
+		case ATTRIBUTE_GNU_ALIAS:
+			handle_attribute_alias(attribute, entity);
+			break;
+
 		case ATTRIBUTE_GNU_PACKED:
 			handle_attribute_packed_e(attribute, entity);
 			break;