PR 11433

gcc/testsuite:
	* objc.dg/proto-lossage-3.m: New test.
libobjc:
	* Protocol.m (descriptionForInstanceMethod): Don't dereference
	instance_methods if it's NULL.
	(descriptionForClassMethod): Likewise for class_methods.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@74137 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 12 insertions, 10 deletions

diff --git a/libobjc/Protocol.m b/libobjc/Protocol.m
index 8191dc21535..06a25acabbe 100644
--- a/libobjc/Protocol.m
+++ b/libobjc/Protocol.m
@@ -80,11 +80,12 @@ struct objc_method_description_list {
   const char* name = sel_get_name (aSel);
   struct objc_method_description *result;
 
-  for (i = 0; i < instance_methods->count; i++)
-    {
-      if (!strcmp ((char*)instance_methods->list[i].name, name))
-	return &(instance_methods->list[i]);
-    }
+  if (instance_methods)
+    for (i = 0; i < instance_methods->count; i++)
+      {
+	if (!strcmp ((char*)instance_methods->list[i].name, name))
+	  return &(instance_methods->list[i]);
+      }
 
   for (proto_list = protocol_list; proto_list; proto_list = proto_list->next)
     {
@@ -107,11 +108,12 @@ struct objc_method_description_list {
   const char* name = sel_get_name (aSel);
   struct objc_method_description *result;
 
-  for (i = 0; i < class_methods->count; i++)
-    {
-      if (!strcmp ((char*)class_methods->list[i].name, name))
-	return &(class_methods->list[i]);
-    }
+  if (class_methods)
+    for (i = 0; i < class_methods->count; i++)
+      {
+	if (!strcmp ((char*)class_methods->list[i].name, name))
+	  return &(class_methods->list[i]);
+      }
 
   for (proto_list = protocol_list; proto_list; proto_list = proto_list->next)
     {