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* Dwarf3: Classes are not encoded as a pointer to a class-structure, but

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as a class-structure directly. Make sure that in this case:
     - The size is the size of the structure, not the size of a pointer
     - The (hidden) pointer is dereferenced
     - The class is marked as unallocated when the (hidden) pointer is nil

git-svn-id: trunk@16674 -
This commit is contained in:
joost 2010-12-31 17:45:58 +00:00
parent dbb2a44286
commit a7cea8606f
1 changed files with 12 additions and 9 deletions
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21
compiler/dbgdwarf.pas
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@ -3801,13 +3801,20 @@ implementation
begin
if assigned(def.objname) then
append_entry(tag,true,[
DW_AT_name,DW_FORM_string,def.objrealname^+#0,
DW_AT_byte_size,DW_FORM_udata,def.size
DW_AT_name,DW_FORM_string,def.objrealname^+#0
])
else
append_entry(DW_TAG_structure_type,true,[
DW_AT_byte_size,DW_FORM_udata,def.size
]);
append_entry(DW_TAG_structure_type,true,[]);
append_attribute(DW_AT_byte_size,DW_FORM_udata,[tobjectsymtable(def.symtable).datasize]);
// The pointer to the class-structure is hidden. The debug-information
// does not contain an implicit pointer, but the data-adress is dereferenced here.
// In case of a nil-pointer, report the class as being unallocated.
append_block1(DW_AT_allocated,2);
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_push_object_address)));
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
append_block1(DW_AT_data_location,2);
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_push_object_address)));
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
finish_entry;
end;
@ -3869,10 +3876,6 @@ implementation
end;
odt_class:
begin
{ not sure if the implicit pointer is needed for tag_class (MWE)}
{
doimplicitpointer;
}
dostruct(DW_TAG_class_type);
doparent(false);
end;