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* changed debuginfo for dynamic arrays in stabs and dwarf2 into a pointer to
the array type, rather than an array type (since they are pointers)
+ fully implemented debug info for dynamic arrays using dwarf3 (as supported
by the gdb "archer" project with the archer-jankratochvil-vla branch)
(mantis #12789)
git-svn-id: trunk@12436 -
This commit is contained in:
Jonas Maebe
parent
e512367dbd
commit
a3732f5cfc
@ -310,6 +310,7 @@ interface
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TDebugInfoDwarf3 = class(TDebugInfoDwarf)
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private
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protected
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procedure appenddef_array(list:TAsmList;def:tarraydef); override;
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procedure appenddef_file(list:TAsmList;def:tfiledef); override;
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procedure appenddef_formal(list:TAsmList;def:tformaldef); override;
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procedure appenddef_object(list:TAsmList;def:tobjectdef); override;
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@ -1297,62 +1298,66 @@ implementation
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var
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size : aint;
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elesize : aint;
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labsym: tasmlabel;
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begin
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if is_special_array(def) then
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size:=def.elesize
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else
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size:=def.size;
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if is_dynamic_array(def) then
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begin
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{ It's a pointer to the actual array }
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current_asmdata.getaddrlabel(labsym);
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append_entry(DW_TAG_pointer_type,false,[]);
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append_labelentry_ref(DW_AT_type,labsym);
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finish_entry;
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current_asmdata.asmlists[al_dwarf_info].concat(tai_symbol.create(labsym,0));
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end;
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if not is_packed_array(def) then
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elesize := def.elesize*8
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else
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elesize := def.elepackedbitsize;
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if assigned(def.typesym) then
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append_entry(DW_TAG_array_type,true,[
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DW_AT_name,DW_FORM_string,symname(def.typesym)+#0,
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DW_AT_byte_size,DW_FORM_udata,size,
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DW_AT_stride_size,DW_FORM_udata,elesize
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])
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else
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append_entry(DW_TAG_array_type,true,[
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DW_AT_byte_size,DW_FORM_udata,size,
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DW_AT_stride_size,DW_FORM_udata,elesize
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]);
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.elementdef));
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if is_dynamic_array(def) then
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if is_special_array(def) then
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begin
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{ !!! FIXME !!! }
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{ gdb's dwarf implementation sucks, so we can't use DW_OP_push_object here (FK)}
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{ insert location attribute manually }
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{
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current_asmdata.asmlists[al_dwarf_abbrev].concat(tai_const.create_uleb128bit(ord(DW_AT_data_location)));
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current_asmdata.asmlists[al_dwarf_abbrev].concat(tai_const.create_uleb128bit(ord(DW_FORM_block1)));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(2));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_push_object_address)));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
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}
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{ no known size, no known upper bound }
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if assigned(def.typesym) then
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append_entry(DW_TAG_array_type,true,[
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DW_AT_name,DW_FORM_string,symname(def.typesym)+#0,
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DW_AT_stride_size,DW_FORM_udata,elesize
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])
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else
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append_entry(DW_TAG_array_type,true,[
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DW_AT_stride_size,DW_FORM_udata,elesize
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]);
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.elementdef));
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finish_entry;
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{ to simplify things, we don't write a multidimensional array here }
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{ a missing upper bound means "unknown"/default }
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append_entry(DW_TAG_subrange_type,false,[
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DW_AT_lower_bound,DW_FORM_udata,0,
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DW_AT_upper_bound,DW_FORM_udata,0
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DW_AT_lower_bound,DW_FORM_sdata,def.lowrange
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]);
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.rangedef));
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finish_entry;
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end
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else
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begin
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size:=def.size;
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if assigned(def.typesym) then
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append_entry(DW_TAG_array_type,true,[
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DW_AT_name,DW_FORM_string,symname(def.typesym)+#0,
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DW_AT_byte_size,DW_FORM_udata,size,
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DW_AT_stride_size,DW_FORM_udata,elesize
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])
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else
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append_entry(DW_TAG_array_type,true,[
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DW_AT_byte_size,DW_FORM_udata,size,
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DW_AT_stride_size,DW_FORM_udata,elesize
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]);
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.elementdef));
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finish_entry;
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{ to simplify things, we don't write a multidimensional array here }
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append_entry(DW_TAG_subrange_type,false,[
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DW_AT_lower_bound,DW_FORM_sdata,def.lowrange,
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DW_AT_upper_bound,DW_FORM_sdata,def.highrange
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]);
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.rangedef));
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finish_entry;
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end;
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.rangedef));
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finish_entry;
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finish_children;
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end;
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@ -2836,6 +2841,49 @@ implementation
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TDebugInfoDwarf3
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****************************************************************************}
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procedure tdebuginfodwarf3.appenddef_array(list: tasmlist; def: tarraydef);
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var
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elesize : aint;
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begin
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if not is_dynamic_array(def) then
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begin
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inherited appenddef_array(list,def);
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exit;
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end;
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elesize := def.elesize*8;
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if assigned(def.typesym) then
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append_entry(DW_TAG_array_type,true,[
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DW_AT_name,DW_FORM_string,symname(def.typesym)+#0,
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DW_AT_stride_size,DW_FORM_udata,elesize,
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DW_AT_data_location,DW_FORM_block1,2
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])
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else
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append_entry(DW_TAG_array_type,true,[
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DW_AT_stride_size,DW_FORM_udata,elesize,
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DW_AT_data_location,DW_FORM_block1,2
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]);
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_push_object_address)));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.elementdef));
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finish_entry;
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{ to simplify things, we don't write a multidimensional array here }
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append_entry(DW_TAG_subrange_type,false,[
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DW_AT_lower_bound,DW_FORM_udata,0,
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DW_AT_upper_bound,DW_FORM_block1,5
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]);
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_push_object_address)));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_lit0)+sizeof(ptrint)));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_minus)));
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current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
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append_labelentry_ref(DW_AT_type,def_dwarf_lab(def.rangedef));
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finish_entry;
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finish_children;
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end;
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procedure TDebugInfoDwarf3.appenddef_file(list:TAsmList;def: tfiledef);
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begin
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if assigned(def.typesym) then
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@ -804,12 +804,17 @@ implementation
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procedure TDebugInfoStabs.appenddef_array(list:TAsmList;def:tarraydef);
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var
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tempstr,
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tempstr: shortstring;
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ss : ansistring;
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begin
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if not is_packed_array(def) then
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ss:=def_stabstr_evaluate(def,'ar$1;$2;$3;$4',[def_stab_number(tarraydef(def).rangedef),
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tostr(tarraydef(def).lowrange),tostr(tarraydef(def).highrange),def_stab_number(tarraydef(def).elementdef)])
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begin
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tempstr:='ar$1;$2;$3;$4';
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if is_dynamic_array(def) then
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tempstr:='*'+tempstr;
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ss:=def_stabstr_evaluate(def,tempstr,[def_stab_number(tarraydef(def).rangedef),
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tostr(tarraydef(def).lowrange),tostr(tarraydef(def).highrange),def_stab_number(tarraydef(def).elementdef)])
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end
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else
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begin
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// the @P seems to be ignored by gdb
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