Hi all,
I discovered that when you use a type in a program, and this type is not
defined in a unit for which debug-info is generated, there is no
DW_TAG_typedef entry generated for the dwarf-debuginfo.
The result is that gdb doesn't recognise the type. Using 'ptype
<typename>' will result in the message that the type is not found.
When you use 'info type' the type is in the list, but not in the form
type longing=longint
but only:
longint=longint
(this is the dw_tag_reference_type entry in the dwarf-debuginfo)
The attached patch solves the problem, but I doubt this is the right
place to do this, since this way the 'DW_TAG_typedef' entry is always
added, and in some cases double.
How (and where) to fix this properly? And can someone see if this is a
problem within gdb, or is it according to the dwarf-specs that this
entry should be there?
Joost.
Index: dbgdwarf.pas
===================================================================
--- dbgdwarf.pas (revision 13409)
+++ dbgdwarf.pas (working copy)
@@ -1673,6 +1673,11 @@
append_entry(DW_TAG_reference_type,false,[]);
append_labelentry_ref(DW_AT_type,def_dwarf_lab(def));
finish_entry;
+ append_entry(DW_TAG_typedef,false,[
+ DW_AT_name,DW_FORM_string,upper(def.typename)+#0
+ ]);
+ append_labelentry_ref(DW_AT_type,def_dwarf_lab(def));
+ finish_entry;
end;
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