ada: gcc-if: build proper String_Pointer for Get_External_Name

The compiler is allowed to assume it can access String bounds, such as
the prefix passed to Get_External_Name, even in circumstances in which
the prefix is not going to be used and has_prefix is false, so, from
the C side, we have to build a proper String_Template for the
String_Pointer.

for  gcc/ada/ChangeLog

	* gcc-interface/decl.cc (is_cplusplus_method): Build proper
	String for Get_External_Name.

diff --git a/gcc/ada/gcc-interface/decl.cc b/gcc/ada/gcc-interface/decl.cc
index 56ad4998e2286c58fbb0eaf9ac74bc7d9d82e87f..28e1ab7ce8159ae86e7f147b98f26dfbcd21316c 100644 (file)
--- a/gcc/ada/gcc-interface/decl.cc
+++ b/gcc/ada/gcc-interface/decl.cc
@@ -4956,7 +4956,8 @@ is_cplusplus_method (Entity_Id gnat_entity)
      'this' parameter is not encoded in the mangled name of a method.  */
   if (Is_Subprogram (gnat_entity) && Present (Interface_Name (gnat_entity)))
     {
-      String_Pointer sp = { NULL, NULL };
+      String_Template temp = { 0, 0 };
+      String_Pointer sp = { "", &temp };
       Get_External_Name (gnat_entity, false, sp);
 
       void *mem;