mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 09:11:53 +01:00
1590 lines
60 KiB
ObjectPascal
1590 lines
60 KiB
ObjectPascal
{
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Copyright (c) 2003-2004 by Peter Vreman and Florian Klaempfl
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This units contains support for STABS debug info generation
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit dbgstabs;
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{$i fpcdefs.inc}
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interface
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uses
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cclasses,
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dbgbase,
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symtype,symdef,symsym,symtable,symbase,
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aasmtai;
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type
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TDebugInfoStabs=class(TDebugInfo)
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private
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writing_def_stabs : boolean;
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global_stab_number : word;
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defnumberlist : tlist;
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{ tsym writing }
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function sym_var_value(const s:string;arg:pointer):string;
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function sym_stabstr_evaluate(sym:tsym;const s:string;const vars:array of string):Pchar;
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procedure write_symtable_syms(list:taasmoutput;st:tsymtable);
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{ tdef writing }
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function def_stab_number(def:tdef):string;
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function def_stab_classnumber(def:tobjectdef):string;
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function def_var_value(const s:string;arg:pointer):string;
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function def_stabstr_evaluate(def:tdef;const s:string;const vars:array of string):Pchar;
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procedure field_add_stabstr(p:Tnamedindexitem;arg:pointer);
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procedure method_add_stabstr(p:Tnamedindexitem;arg:pointer);
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function def_stabstr(def:tdef):pchar;
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procedure write_def_stabstr(list:taasmoutput;def:tdef);
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procedure field_write_defs(p:Tnamedindexitem;arg:pointer);
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procedure method_write_defs(p :tnamedindexitem;arg:pointer);
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procedure write_symtable_defs(list:taasmoutput;st:tsymtable);
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procedure write_procdef(list:taasmoutput;pd:tprocdef);
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procedure insertsym(list:taasmoutput;sym:tsym);
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procedure insertdef(list:taasmoutput;def:tdef);
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public
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procedure inserttypeinfo;override;
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procedure insertmoduleinfo;override;
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procedure insertlineinfo(list:taasmoutput);override;
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procedure referencesections(list:taasmoutput);override;
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end;
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implementation
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uses
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strings,cutils,
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systems,globals,globtype,verbose,
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symconst,defutil,
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cpuinfo,cpubase,cgbase,paramgr,
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aasmbase,procinfo,
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finput,fmodule,ppu;
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const
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memsizeinc = 512;
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N_GSYM = $20;
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N_STSYM = 38; { initialized const }
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N_LCSYM = 40; { non initialized variable}
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N_Function = $24; { function or const }
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N_TextLine = $44;
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N_DataLine = $46;
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N_BssLine = $48;
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N_RSYM = $40; { register variable }
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N_LSYM = $80;
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N_tsym = 160;
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N_SourceFile = $64;
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N_IncludeFile = $84;
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N_BINCL = $82;
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N_EINCL = $A2;
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N_EXCL = $C2;
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tagtypes = [
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recorddef,
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enumdef,
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stringdef,
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filedef,
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objectdef
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];
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type
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get_var_value_proc=function(const s:string;arg:pointer):string of object;
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Trecord_stabgen_state=record
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stabstring:Pchar;
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stabsize,staballoc,recoffset:integer;
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end;
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Precord_stabgen_state=^Trecord_stabgen_state;
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function string_evaluate(s:string;get_var_value:get_var_value_proc;
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get_var_value_arg:pointer;
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const vars:array of string):Pchar;
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(*
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S contains a prototype of a result. Stabstr_evaluate will expand
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variables and parameters.
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Output is s in ASCIIZ format, with the following expanded:
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${varname} - The variable name is expanded.
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$n - The parameter n is expanded.
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$$ - Is expanded to $
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*)
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const maxvalue=9;
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maxdata=1023;
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var i,j:byte;
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varname:string[63];
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varno,varcounter:byte;
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varvalues:array[0..9] of Pstring;
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{1 kb of parameters is the limit. 256 extra bytes are allocated to
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ensure buffer integrity.}
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varvaluedata:array[0..maxdata+256] of char;
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varptr:Pchar;
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varidx : byte;
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len:cardinal;
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r:Pchar;
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begin
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{Two pass approach, first, calculate the length and receive variables.}
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i:=1;
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len:=0;
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varcounter:=0;
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varptr:=@varvaluedata;
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while i<=length(s) do
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begin
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if (s[i]='$') and (i<length(s)) then
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begin
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if s[i+1]='$' then
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begin
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inc(len);
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inc(i);
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end
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else if (s[i+1]='{') and (length(s)>2) and (i<length(s)-2) then
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begin
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varname:='';
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inc(i,2);
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repeat
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inc(varname[0]);
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varname[length(varname)]:=s[i];
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s[i]:=char(varcounter);
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inc(i);
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until s[i]='}';
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varvalues[varcounter]:=Pstring(varptr);
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if varptr>@varvaluedata+maxdata then
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internalerrorproc(200411152);
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Pstring(varptr)^:=get_var_value(varname,get_var_value_arg);
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inc(len,length(Pstring(varptr)^));
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inc(varptr,length(Pstring(varptr)^)+1);
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inc(varcounter);
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end
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else if s[i+1] in ['1'..'9'] then
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begin
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varidx:=byte(s[i+1])-byte('1');
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if varidx>high(vars) then
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internalerror(200509263);
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inc(len,length(vars[varidx]));
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inc(i);
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end;
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end
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else
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inc(len);
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inc(i);
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end;
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{Second pass, writeout result.}
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getmem(r,len+1);
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string_evaluate:=r;
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i:=1;
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while i<=length(s) do
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begin
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if (s[i]='$') and (i<length(s)) then
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begin
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if s[i+1]='$' then
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begin
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r^:='$';
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inc(r);
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inc(i);
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end
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else if (s[i+1]='{') and (length(s)>2) and (i<length(s)-2) then
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begin
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varname:='';
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inc(i,2);
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varno:=byte(s[i]);
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repeat
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inc(i);
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until s[i]='}';
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for j:=1 to length(varvalues[varno]^) do
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begin
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r^:=varvalues[varno]^[j];
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inc(r);
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end;
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end
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else if s[i+1] in ['0'..'9'] then
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begin
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for j:=1 to length(vars[byte(s[i+1])-byte('1')]) do
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begin
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r^:=vars[byte(s[i+1])-byte('1')][j];
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inc(r);
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end;
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inc(i);
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end
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end
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else
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begin
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r^:=s[i];
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inc(r);
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end;
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inc(i);
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end;
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r^:=#0;
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end;
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{****************************************************************************
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TDef support
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****************************************************************************}
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function TDebugInfoStabs.def_stab_number(def:tdef):string;
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begin
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{ procdefs only need a number, mark them as already written
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so they won't be written implicitly }
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if (def.deftype=procdef) then
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def.stab_state:=stab_state_written;
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{ Stab must already be written, or we must be busy writing it }
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if writing_def_stabs and
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not(def.stab_state in [stab_state_writing,stab_state_written]) then
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internalerror(200403091);
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{ Keep track of used stabs, this info is only usefull for stabs
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referenced by the symbols. Definitions will always include all
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required stabs }
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if def.stab_state=stab_state_unused then
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def.stab_state:=stab_state_used;
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{ Need a new number? }
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if def.stab_number=0 then
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begin
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inc(global_stab_number);
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{ classes require 2 numbers }
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if is_class(def) then
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inc(global_stab_number);
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def.stab_number:=global_stab_number;
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if global_stab_number>=defnumberlist.count then
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defnumberlist.count:=global_stab_number+250;
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defnumberlist[global_stab_number]:=def;
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end;
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result:=tostr(def.stab_number);
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end;
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function TDebugInfoStabs.def_stab_classnumber(def:tobjectdef):string;
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begin
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if def.stab_number=0 then
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def_stab_number(def);
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result:=tostr(def.stab_number-1);
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end;
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function TDebugInfoStabs.def_var_value(const s:string;arg:pointer):string;
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var
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def : tdef;
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begin
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def:=tdef(arg);
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result:='';
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if s='numberstring' then
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result:=def_stab_number(def)
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else if s='sym_name' then
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begin
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if assigned(def.typesym) then
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result:=Ttypesym(def.typesym).name;
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end
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else if s='N_LSYM' then
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result:=tostr(N_LSYM)
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else if s='savesize' then
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result:=tostr(def.size);
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end;
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function TDebugInfoStabs.def_stabstr_evaluate(def:tdef;const s:string;const vars:array of string):Pchar;
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begin
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result:=string_evaluate(s,@def_var_value,def,vars);
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end;
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procedure TDebugInfoStabs.field_add_stabstr(p:Tnamedindexitem;arg:pointer);
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var
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newrec : Pchar;
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spec : string[3];
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varsize : aint;
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state : Precord_stabgen_state;
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begin
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state:=arg;
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{ static variables from objects are like global objects }
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if (Tsym(p).typ=fieldvarsym) and
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not(sp_static in Tsym(p).symoptions) then
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begin
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if ([sp_protected,sp_strictprotected]*tsym(p).symoptions)<>[] then
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spec:='/1'
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else if ([sp_private,sp_strictprivate]*tsym(p).symoptions)<>[] then
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spec:='/0'
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else
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spec:='';
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varsize:=tfieldvarsym(p).vartype.def.size;
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{ open arrays made overflows !! }
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if varsize>$fffffff then
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varsize:=$fffffff;
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newrec:=def_stabstr_evaluate(nil,'$1:$2,$3,$4;',[p.name,
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spec+def_stab_number(tfieldvarsym(p).vartype.def),
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tostr(tfieldvarsym(p).fieldoffset*8),tostr(varsize*8)]);
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if state^.stabsize+strlen(newrec)>=state^.staballoc-256 then
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begin
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inc(state^.staballoc,strlen(newrec)+64);
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reallocmem(state^.stabstring,state^.staballoc);
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end;
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strcopy(state^.stabstring+state^.stabsize,newrec);
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inc(state^.stabsize,strlen(newrec));
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strdispose(newrec);
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{This should be used for case !!}
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inc(state^.recoffset,Tfieldvarsym(p).vartype.def.size);
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end;
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end;
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procedure TDebugInfoStabs.method_add_stabstr(p:Tnamedindexitem;arg:pointer);
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var virtualind,argnames : string;
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newrec : pchar;
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pd : tprocdef;
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lindex : longint;
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arglength : byte;
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sp : char;
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state:^Trecord_stabgen_state;
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olds:integer;
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i : integer;
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parasym : tparavarsym;
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begin
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state:=arg;
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if tsym(p).typ = procsym then
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begin
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pd := tprocsym(p).first_procdef;
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if (po_virtualmethod in pd.procoptions) then
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begin
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lindex := pd.extnumber;
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{doesnt seem to be necessary
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lindex := lindex or $80000000;}
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virtualind := '*'+tostr(lindex)+';'+def_stab_classnumber(pd._class)+';'
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end
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else
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virtualind := '.';
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{ used by gdbpas to recognize constructor and destructors }
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if (pd.proctypeoption=potype_constructor) then
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argnames:='__ct__'
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else if (pd.proctypeoption=potype_destructor) then
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argnames:='__dt__'
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else
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argnames := '';
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{ arguments are not listed here }
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{we don't need another definition}
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for i:=0 to pd.paras.count-1 do
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begin
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parasym:=tparavarsym(pd.paras[i]);
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if Parasym.vartype.def.deftype = formaldef then
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begin
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case Parasym.varspez of
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vs_var :
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argnames := argnames+'3var';
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vs_const :
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argnames:=argnames+'5const';
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vs_out :
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argnames:=argnames+'3out';
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end;
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end
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else
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begin
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{ if the arg definition is like (v: ^byte;..
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there is no sym attached to data !!! }
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if assigned(Parasym.vartype.def.typesym) then
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begin
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arglength := length(Parasym.vartype.def.typesym.name);
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argnames := argnames + tostr(arglength)+Parasym.vartype.def.typesym.name;
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end
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else
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argnames:=argnames+'11unnamedtype';
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end;
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end;
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{ here 2A must be changed for private and protected }
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{ 0 is private 1 protected and 2 public }
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if ([sp_private,sp_strictprivate]*tsym(p).symoptions)<>[] then
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sp:='0'
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else if ([sp_protected,sp_strictprotected]*tsym(p).symoptions)<>[] then
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sp:='1'
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else
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sp:='2';
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newrec:=def_stabstr_evaluate(nil,'$1::$2=##$3;:$4;$5A$6;',[p.name,def_stab_number(pd),
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def_stab_number(pd.rettype.def),argnames,sp,
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virtualind]);
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{ get spare place for a string at the end }
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olds:=state^.stabsize;
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inc(state^.stabsize,strlen(newrec));
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if state^.stabsize>=state^.staballoc-256 then
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begin
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inc(state^.staballoc,strlen(newrec)+64);
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reallocmem(state^.stabstring,state^.staballoc);
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end;
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strcopy(state^.stabstring+olds,newrec);
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strdispose(newrec);
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{This should be used for case !!
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RecOffset := RecOffset + pd.size;}
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end;
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end;
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function TDebugInfoStabs.def_stabstr(def:tdef):pchar;
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function stringdef_stabstr(def:tstringdef):pchar;
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var
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slen : aint;
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bytest,charst,longst : string;
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begin
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case def.string_typ of
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st_shortstring:
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begin
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{ fix length of openshortstring }
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slen:=def.len;
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if slen=0 then
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slen:=255;
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charst:=def_stab_number(cchartype.def);
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bytest:=def_stab_number(u8inttype.def);
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result:=def_stabstr_evaluate(def,'s$1length:$2,0,8;st:ar$2;1;$3;$4,8,$5;;',
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[tostr(slen+1),bytest,tostr(slen),charst,tostr(slen*8)]);
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end;
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st_longstring:
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begin
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charst:=def_stab_number(cchartype.def);
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bytest:=def_stab_number(u8inttype.def);
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longst:=def_stab_number(u32inttype.def);
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result:=def_stabstr_evaluate(def,'s$1length:$2,0,32;dummy:$6,32,8;st:ar$2;1;$3;$4,40,$5;;',
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[tostr(def.len+5),longst,tostr(def.len),charst,tostr(def.len*8),bytest]);
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end;
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st_ansistring:
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begin
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{ looks like a pchar }
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charst:=def_stab_number(cchartype.def);
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result:=strpnew('*'+charst);
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end;
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st_widestring:
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begin
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{ looks like a pwidechar }
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charst:=def_stab_number(cwidechartype.def);
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result:=strpnew('*'+charst);
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end;
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end;
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end;
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|
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function enumdef_stabstr(def:tenumdef):pchar;
|
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var
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st : Pchar;
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p : Tenumsym;
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s : string;
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memsize,
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stl : aint;
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begin
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memsize:=memsizeinc;
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getmem(st,memsize);
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{ we can specify the size with @s<size>; prefix PM }
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if def.size <> std_param_align then
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strpcopy(st,'@s'+tostr(def.size*8)+';e')
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else
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strpcopy(st,'e');
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p := tenumsym(def.firstenum);
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stl:=strlen(st);
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while assigned(p) do
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begin
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s :=p.name+':'+tostr(p.value)+',';
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{ place for the ending ';' also }
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if (stl+length(s)+1>=memsize) then
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begin
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inc(memsize,memsizeinc);
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reallocmem(st,memsize);
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end;
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strpcopy(st+stl,s);
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inc(stl,length(s));
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p:=p.nextenum;
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end;
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|
st[stl]:=';';
|
|
st[stl+1]:=#0;
|
|
reallocmem(st,stl+2);
|
|
result:=st;
|
|
end;
|
|
|
|
function orddef_stabstr(def:torddef):pchar;
|
|
begin
|
|
if cs_gdb_valgrind in aktglobalswitches then
|
|
begin
|
|
case def.typ of
|
|
uvoid :
|
|
result:=strpnew(def_stab_number(def));
|
|
bool8bit,
|
|
bool16bit,
|
|
bool32bit :
|
|
result:=def_stabstr_evaluate(def,'r${numberstring};0;255;',[]);
|
|
u32bit,
|
|
s64bit,
|
|
u64bit :
|
|
result:=def_stabstr_evaluate(def,'r${numberstring};0;-1;',[]);
|
|
else
|
|
result:=def_stabstr_evaluate(def,'r${numberstring};$1;$2;',[tostr(longint(def.low)),tostr(longint(def.high))]);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case def.typ of
|
|
uvoid :
|
|
result:=strpnew(def_stab_number(def));
|
|
uchar :
|
|
result:=strpnew('-20;');
|
|
uwidechar :
|
|
result:=strpnew('-30;');
|
|
bool8bit :
|
|
result:=strpnew('-21;');
|
|
bool16bit :
|
|
result:=strpnew('-22;');
|
|
bool32bit :
|
|
result:=strpnew('-23;');
|
|
u64bit :
|
|
result:=strpnew('-32;');
|
|
s64bit :
|
|
result:=strpnew('-31;');
|
|
{u32bit : result:=def_stab_number(s32inttype.def)+';0;-1;'); }
|
|
else
|
|
result:=def_stabstr_evaluate(def,'r${numberstring};$1;$2;',[tostr(longint(def.low)),tostr(longint(def.high))]);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function floatdef_stabstr(def:tfloatdef):Pchar;
|
|
begin
|
|
case def.typ of
|
|
s32real,
|
|
s64real,
|
|
s80real:
|
|
result:=def_stabstr_evaluate(def,'r$1;${savesize};0;',[def_stab_number(s32inttype.def)]);
|
|
s64currency,
|
|
s64comp:
|
|
result:=def_stabstr_evaluate(def,'r$1;-${savesize};0;',[def_stab_number(s32inttype.def)]);
|
|
else
|
|
internalerror(200509261);
|
|
end;
|
|
end;
|
|
|
|
function filedef_stabstr(def:tfiledef):pchar;
|
|
begin
|
|
{$ifdef cpu64bit}
|
|
result:=def_stabstr_evaluate(def,'s${savesize}HANDLE:$1,0,32;MODE:$1,32,32;RECSIZE:$2,64,64;'+
|
|
'_PRIVATE:ar$1;1;64;$3,128,256;USERDATA:ar$1;1;16;$3,384,128;'+
|
|
'NAME:ar$1;0;255;$4,512,2048;;',[def_stab_number(s32inttype.def),
|
|
def_stab_number(s64inttype.def),
|
|
def_stab_number(u8inttype.def),
|
|
def_stab_number(cchartype.def)]);
|
|
{$else cpu64bit}
|
|
result:=def_stabstr_evaluate(def,'s${savesize}HANDLE:$1,0,32;MODE:$1,32,32;RECSIZE:$1,64,32;'+
|
|
'_PRIVATE:ar$1;1;32;$3,96,256;USERDATA:ar$1;1;16;$2,352,128;'+
|
|
'NAME:ar$1;0;255;$3,480,2048;;',[def_stab_number(s32inttype.def),
|
|
def_stab_number(u8inttype.def),
|
|
def_stab_number(cchartype.def)]);
|
|
{$endif cpu64bit}
|
|
end;
|
|
|
|
function procdef_stabstr(def:tprocdef):pchar;
|
|
Var
|
|
RType : Char;
|
|
Obj,Info : String;
|
|
stabsstr : string;
|
|
p : pchar;
|
|
begin
|
|
obj := def.procsym.name;
|
|
info := '';
|
|
if (po_global in def.procoptions) then
|
|
RType := 'F'
|
|
else
|
|
RType := 'f';
|
|
if assigned(def.owner) then
|
|
begin
|
|
if (def.owner.symtabletype = objectsymtable) then
|
|
obj := def.owner.name^+'__'+def.procsym.name;
|
|
if not(cs_gdb_valgrind in aktglobalswitches) and
|
|
(def.owner.symtabletype=localsymtable) and
|
|
assigned(def.owner.defowner) and
|
|
assigned(tprocdef(def.owner.defowner).procsym) then
|
|
info := ','+def.procsym.name+','+tprocdef(def.owner.defowner).procsym.name;
|
|
end;
|
|
stabsstr:=def.mangledname;
|
|
getmem(p,length(stabsstr)+255);
|
|
strpcopy(p,'"'+obj+':'+RType
|
|
+def_stab_number(def.rettype.def)+info+'",'+tostr(n_function)
|
|
+',0,'+
|
|
tostr(def.fileinfo.line)
|
|
+',');
|
|
strpcopy(strend(p),stabsstr);
|
|
result:=strnew(p);
|
|
freemem(p,length(stabsstr)+255);
|
|
end;
|
|
|
|
function recorddef_stabstr(def:trecorddef):pchar;
|
|
var
|
|
state : Trecord_stabgen_state;
|
|
begin
|
|
getmem(state.stabstring,memsizeinc);
|
|
state.staballoc:=memsizeinc;
|
|
strpcopy(state.stabstring,'s'+tostr(def.size));
|
|
state.recoffset:=0;
|
|
state.stabsize:=strlen(state.stabstring);
|
|
def.symtable.foreach(@field_add_stabstr,@state);
|
|
state.stabstring[state.stabsize]:=';';
|
|
state.stabstring[state.stabsize+1]:=#0;
|
|
reallocmem(state.stabstring,state.stabsize+2);
|
|
result:=state.stabstring;
|
|
end;
|
|
|
|
function objectdef_stabstr(def:tobjectdef):pchar;
|
|
var
|
|
anc : tobjectdef;
|
|
state :Trecord_stabgen_state;
|
|
ts : string;
|
|
begin
|
|
{ Write the invisible pointer for the class? }
|
|
if (def.objecttype=odt_class) and
|
|
(not def.writing_class_record_stab) then
|
|
begin
|
|
result:=strpnew('*'+def_stab_classnumber(def));
|
|
exit;
|
|
end;
|
|
|
|
state.staballoc:=memsizeinc;
|
|
getmem(state.stabstring,state.staballoc);
|
|
strpcopy(state.stabstring,'s'+tostr(tobjectsymtable(def.symtable).datasize));
|
|
if assigned(def.childof) then
|
|
begin
|
|
{only one ancestor not virtual, public, at base offset 0 }
|
|
{ !1 , 0 2 0 , }
|
|
strpcopy(strend(state.stabstring),'!1,020,'+def_stab_classnumber(def.childof)+';');
|
|
end;
|
|
{virtual table to implement yet}
|
|
state.recoffset:=0;
|
|
state.stabsize:=strlen(state.stabstring);
|
|
def.symtable.foreach(@field_add_stabstr,@state);
|
|
if (oo_has_vmt in def.objectoptions) then
|
|
if not assigned(def.childof) or not(oo_has_vmt in def.childof.objectoptions) then
|
|
begin
|
|
ts:='$vf'+def_stab_classnumber(def)+':'+def_stab_number(vmtarraytype.def)+','+tostr(def.vmt_offset*8)+';';
|
|
strpcopy(state.stabstring+state.stabsize,ts);
|
|
inc(state.stabsize,length(ts));
|
|
end;
|
|
def.symtable.foreach(@method_add_stabstr,@state);
|
|
if (oo_has_vmt in def.objectoptions) then
|
|
begin
|
|
anc := def;
|
|
while assigned(anc.childof) and (oo_has_vmt in anc.childof.objectoptions) do
|
|
anc := anc.childof;
|
|
{ just in case anc = self }
|
|
ts:=';~%'+def_stab_classnumber(anc)+';';
|
|
end
|
|
else
|
|
ts:=';';
|
|
strpcopy(state.stabstring+state.stabsize,ts);
|
|
inc(state.stabsize,length(ts));
|
|
reallocmem(state.stabstring,state.stabsize+1);
|
|
result:=state.stabstring;
|
|
end;
|
|
|
|
begin
|
|
result:=nil;
|
|
case def.deftype of
|
|
stringdef :
|
|
result:=stringdef_stabstr(tstringdef(def));
|
|
enumdef :
|
|
result:=enumdef_stabstr(tenumdef(def));
|
|
orddef :
|
|
result:=orddef_stabstr(torddef(def));
|
|
floatdef :
|
|
result:=floatdef_stabstr(tfloatdef(def));
|
|
filedef :
|
|
result:=filedef_stabstr(tfiledef(def));
|
|
recorddef :
|
|
result:=recorddef_stabstr(trecorddef(def));
|
|
variantdef :
|
|
result:=def_stabstr_evaluate(def,'formal${numberstring};',[]);
|
|
pointerdef :
|
|
result:=strpnew('*'+def_stab_number(tpointerdef(def).pointertype.def));
|
|
classrefdef :
|
|
result:=strpnew(def_stab_number(pvmttype.def));
|
|
setdef :
|
|
result:=def_stabstr_evaluate(def,'@s$1;S$2',[tostr(def.size*8),def_stab_number(tsetdef(def).elementtype.def)]);
|
|
formaldef :
|
|
result:=def_stabstr_evaluate(def,'formal${numberstring};',[]);
|
|
arraydef :
|
|
result:=def_stabstr_evaluate(def,'ar$1;$2;$3;$4',[def_stab_number(tarraydef(def).rangetype.def),
|
|
tostr(tarraydef(def).lowrange),tostr(tarraydef(def).highrange),def_stab_number(tarraydef(def).elementtype.def)]);
|
|
procdef :
|
|
result:=procdef_stabstr(tprocdef(def));
|
|
procvardef :
|
|
result:=strpnew('*f'+def_stab_number(tprocvardef(def).rettype.def));
|
|
objectdef :
|
|
begin
|
|
if tobjectdef(def).writing_class_record_stab then
|
|
result:=objectdef_stabstr(tobjectdef(def))
|
|
else
|
|
result:=strpnew('*'+def_stab_classnumber(tobjectdef(def)));
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.write_def_stabstr(list:taasmoutput;def:tdef);
|
|
var
|
|
stabchar : string[2];
|
|
ss,st,su : pchar;
|
|
begin
|
|
{ procdefs require a different stabs style without type prefix }
|
|
if def.deftype=procdef then
|
|
begin
|
|
st:=def_stabstr(def);
|
|
{ add to list }
|
|
list.concat(Tai_stab.create(stab_stabs,st));
|
|
end
|
|
else
|
|
begin
|
|
{ type prefix }
|
|
if def.deftype in tagtypes then
|
|
stabchar := 'Tt'
|
|
else
|
|
stabchar := 't';
|
|
{ Here we maybe generate a type, so we have to use numberstring }
|
|
if is_class(def) and
|
|
tobjectdef(def).writing_class_record_stab then
|
|
st:=def_stabstr_evaluate(def,'"${sym_name}:$1$2=',[stabchar,def_stab_classnumber(tobjectdef(def))])
|
|
else
|
|
st:=def_stabstr_evaluate(def,'"${sym_name}:$1$2=',[stabchar,def_stab_number(def)]);
|
|
ss:=def_stabstr(def);
|
|
reallocmem(st,strlen(ss)+512);
|
|
{ line info is set to 0 for all defs, because the def can be in an other
|
|
unit and then the linenumber is invalid in the current sourcefile }
|
|
su:=def_stabstr_evaluate(def,'",${N_LSYM},0,0,0',[]);
|
|
strcopy(strecopy(strend(st),ss),su);
|
|
reallocmem(st,strlen(st)+1);
|
|
strdispose(ss);
|
|
strdispose(su);
|
|
{ add to list }
|
|
list.concat(Tai_stab.create(stab_stabs,st));
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.field_write_defs(p:Tnamedindexitem;arg:pointer);
|
|
begin
|
|
if (Tsym(p).typ=fieldvarsym) and
|
|
not(sp_static in Tsym(p).symoptions) then
|
|
insertdef(taasmoutput(arg),tfieldvarsym(p).vartype.def);
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.method_write_defs(p :tnamedindexitem;arg:pointer);
|
|
var
|
|
pd : tprocdef;
|
|
begin
|
|
if tsym(p).typ = procsym then
|
|
begin
|
|
pd:=tprocsym(p).first_procdef;
|
|
insertdef(taasmoutput(arg),pd.rettype.def);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.insertdef(list:taasmoutput;def:tdef);
|
|
var
|
|
anc : tobjectdef;
|
|
oldtypesym : tsym;
|
|
// nb : string[12];
|
|
begin
|
|
if (def.stab_state in [stab_state_writing,stab_state_written]) then
|
|
exit;
|
|
{ to avoid infinite loops }
|
|
def.stab_state := stab_state_writing;
|
|
{ write dependencies first }
|
|
case def.deftype of
|
|
stringdef :
|
|
begin
|
|
if tstringdef(def).string_typ=st_widestring then
|
|
insertdef(list,cwidechartype.def)
|
|
else
|
|
begin
|
|
insertdef(list,cchartype.def);
|
|
insertdef(list,u8inttype.def);
|
|
end;
|
|
end;
|
|
floatdef :
|
|
insertdef(list,s32inttype.def);
|
|
filedef :
|
|
begin
|
|
insertdef(list,s32inttype.def);
|
|
{$ifdef cpu64bit}
|
|
insertdef(list,s64inttype.def);
|
|
{$endif cpu64bit}
|
|
insertdef(list,u8inttype.def);
|
|
insertdef(list,cchartype.def);
|
|
end;
|
|
classrefdef :
|
|
insertdef(list,pvmttype.def);
|
|
pointerdef :
|
|
insertdef(list,tpointerdef(def).pointertype.def);
|
|
setdef :
|
|
insertdef(list,tsetdef(def).elementtype.def);
|
|
procvardef,
|
|
procdef :
|
|
insertdef(list,tprocdef(def).rettype.def);
|
|
arraydef :
|
|
begin
|
|
insertdef(list,tarraydef(def).rangetype.def);
|
|
insertdef(list,tarraydef(def).elementtype.def);
|
|
end;
|
|
recorddef :
|
|
trecorddef(def).symtable.foreach(@field_write_defs,list);
|
|
objectdef :
|
|
begin
|
|
insertdef(list,vmtarraytype.def);
|
|
{ first the parents }
|
|
anc:=tobjectdef(def);
|
|
while assigned(anc.childof) do
|
|
begin
|
|
anc:=anc.childof;
|
|
insertdef(list,anc);
|
|
end;
|
|
tobjectdef(def).symtable.foreach(@field_write_defs,list);
|
|
tobjectdef(def).symtable.foreach(@method_write_defs,list);
|
|
end;
|
|
end;
|
|
(*
|
|
{ Handle pointerdefs to records and objects to avoid recursion }
|
|
if (def.deftype=pointerdef) and
|
|
(tpointerdef(def).pointertype.def.deftype in [recorddef,objectdef]) then
|
|
begin
|
|
def.stab_state:=stab_state_used;
|
|
write_def_stabstr(list,def);
|
|
{to avoid infinite recursion in record with next-like fields }
|
|
if tdef(tpointerdef(def).pointertype.def).stab_state=stab_state_writing then
|
|
begin
|
|
if assigned(tpointerdef(def).pointertype.def.typesym) then
|
|
begin
|
|
if is_class(tpointerdef(def).pointertype.def) then
|
|
nb:=def_stab_classnumber(tobjectdef(tpointerdef(def).pointertype.def))
|
|
else
|
|
nb:=def_stab_number(tpointerdef(def).pointertype.def);
|
|
list.concat(Tai_stab.create(stab_stabs,def_stabstr_evaluate(
|
|
def,'"${sym_name}:t${numberstring}=*$1=xs$2:",${N_LSYM},0,0,0',
|
|
[nb,tpointerdef(def).pointertype.def.typesym.name])));
|
|
end;
|
|
def.stab_state:=stab_state_written;
|
|
end
|
|
end
|
|
else
|
|
*)
|
|
case def.deftype of
|
|
objectdef :
|
|
begin
|
|
{ classes require special code to write the record and the invisible pointer }
|
|
if is_class(def) then
|
|
begin
|
|
{ Write the record class itself }
|
|
tobjectdef(def).writing_class_record_stab:=true;
|
|
write_def_stabstr(list,def);
|
|
tobjectdef(def).writing_class_record_stab:=false;
|
|
{ Write the invisible pointer class }
|
|
oldtypesym:=def.typesym;
|
|
def.typesym:=nil;
|
|
write_def_stabstr(list,def);
|
|
def.typesym:=oldtypesym;
|
|
end
|
|
else
|
|
write_def_stabstr(list,def);
|
|
{ VMT symbol }
|
|
if (oo_has_vmt in tobjectdef(def).objectoptions) and
|
|
assigned(def.owner) and
|
|
assigned(def.owner.name) then
|
|
list.concat(Tai_stab.create(stab_stabs,strpnew('"vmt_'+def.owner.name^+tobjectdef(def).name+':S'+
|
|
def_stab_number(vmttype.def)+'",'+tostr(N_STSYM)+',0,0,'+tobjectdef(def).vmt_mangledname)));
|
|
end;
|
|
procdef :
|
|
begin
|
|
{ procdefs are handled separatly }
|
|
end;
|
|
else
|
|
write_def_stabstr(list,def);
|
|
end;
|
|
|
|
def.stab_state := stab_state_written;
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.write_symtable_defs(list:taasmoutput;st:tsymtable);
|
|
|
|
procedure dowritestabs(list:taasmoutput;st:tsymtable);
|
|
var
|
|
p : tdef;
|
|
begin
|
|
p:=tdef(st.defindex.first);
|
|
while assigned(p) do
|
|
begin
|
|
if (p.stab_state=stab_state_used) then
|
|
insertdef(list,p);
|
|
p:=tdef(p.indexnext);
|
|
end;
|
|
end;
|
|
|
|
var
|
|
old_writing_def_stabs : boolean;
|
|
begin
|
|
case st.symtabletype of
|
|
staticsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Defs - Begin Staticsymtable')));
|
|
globalsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Defs - Begin unit '+st.name^+' has index '+tostr(st.moduleid))));
|
|
end;
|
|
old_writing_def_stabs:=writing_def_stabs;
|
|
writing_def_stabs:=true;
|
|
dowritestabs(list,st);
|
|
writing_def_stabs:=old_writing_def_stabs;
|
|
case st.symtabletype of
|
|
staticsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Defs - End Staticsymtable')));
|
|
globalsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Defs - End unit '+st.name^+' has index '+tostr(st.moduleid))));
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.write_procdef(list:taasmoutput;pd:tprocdef);
|
|
var
|
|
templist : taasmoutput;
|
|
stabsendlabel : tasmlabel;
|
|
mangled_length : longint;
|
|
p : pchar;
|
|
hs : string;
|
|
begin
|
|
if assigned(pd.procstarttai) then
|
|
begin
|
|
templist:=taasmoutput.create;
|
|
{ para types }
|
|
write_def_stabstr(templist,pd);
|
|
if assigned(pd.parast) then
|
|
write_symtable_syms(templist,pd.parast);
|
|
{ local type defs and vars should not be written
|
|
inside the main proc stab }
|
|
if assigned(pd.localst) and
|
|
(pd.localst.symtabletype=localsymtable) then
|
|
write_symtable_syms(templist,pd.localst);
|
|
asmlist[al_procedures].insertlistbefore(pd.procstarttai,templist);
|
|
{ end of procedure }
|
|
objectlibrary.getlabel(stabsendlabel,alt_dbgtype);
|
|
templist.concat(tai_label.create(stabsendlabel));
|
|
if assigned(pd.funcretsym) and
|
|
(tabstractnormalvarsym(pd.funcretsym).refs>0) then
|
|
begin
|
|
if tabstractnormalvarsym(pd.funcretsym).localloc.loc=LOC_REFERENCE then
|
|
begin
|
|
{$warning Need to add gdb support for ret in param register calling}
|
|
if paramanager.ret_in_param(pd.rettype.def,pd.proccalloption) then
|
|
hs:='X*'
|
|
else
|
|
hs:='X';
|
|
templist.concat(Tai_stab.create(stab_stabs,strpnew(
|
|
'"'+pd.procsym.name+':'+hs+def_stab_number(pd.rettype.def)+'",'+
|
|
tostr(N_tsym)+',0,0,'+tostr(tabstractnormalvarsym(pd.funcretsym).localloc.reference.offset))));
|
|
if (m_result in aktmodeswitches) then
|
|
templist.concat(Tai_stab.create(stab_stabs,strpnew(
|
|
'"RESULT:'+hs+def_stab_number(pd.rettype.def)+'",'+
|
|
tostr(N_tsym)+',0,0,'+tostr(tabstractnormalvarsym(pd.funcretsym).localloc.reference.offset))));
|
|
end;
|
|
end;
|
|
mangled_length:=length(pd.mangledname);
|
|
getmem(p,2*mangled_length+50);
|
|
strpcopy(p,'192,0,0,');
|
|
{$IFDEF POWERPC64}strpcopy(strend(p), '.');{$ENDIF POWERPC64}
|
|
strpcopy(strend(p),pd.mangledname);
|
|
if (target_info.use_function_relative_addresses) then
|
|
begin
|
|
strpcopy(strend(p),'-');
|
|
{$IFDEF POWERPC64}strpcopy(strend(p), '.');{$ENDIF POWERPC64}
|
|
strpcopy(strend(p),pd.mangledname);
|
|
end;
|
|
templist.concat(Tai_stab.Create(stab_stabn,strnew(p)));
|
|
strpcopy(p,'224,0,0,'+stabsendlabel.name);
|
|
if (target_info.use_function_relative_addresses) then
|
|
begin
|
|
strpcopy(strend(p),'-');
|
|
{$IFDEF POWERPC64}strpcopy(strend(p), '.');{$ENDIF POWERPC64}
|
|
strpcopy(strend(p),pd.mangledname);
|
|
end;
|
|
templist.concat(Tai_stab.Create(stab_stabn,strnew(p)));
|
|
freemem(p,2*mangled_length+50);
|
|
asmlist[al_procedures].insertlistbefore(pd.procendtai,templist);
|
|
templist.free;
|
|
end;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TSym support
|
|
****************************************************************************}
|
|
|
|
function TDebugInfoStabs.sym_var_value(const s:string;arg:pointer):string;
|
|
var
|
|
sym : tsym;
|
|
begin
|
|
sym:=tsym(arg);
|
|
result:='';
|
|
if s='name' then
|
|
result:=sym.name
|
|
else if s='mangledname' then
|
|
result:=sym.mangledname
|
|
else if s='ownername' then
|
|
result:=sym.owner.name^
|
|
else if s='line' then
|
|
result:=tostr(sym.fileinfo.line)
|
|
else if s='N_LSYM' then
|
|
result:=tostr(N_LSYM)
|
|
else if s='N_LCSYM' then
|
|
result:=tostr(N_LCSYM)
|
|
else if s='N_RSYM' then
|
|
result:=tostr(N_RSYM)
|
|
else if s='N_TSYM' then
|
|
result:=tostr(N_TSYM)
|
|
else if s='N_STSYM' then
|
|
result:=tostr(N_STSYM)
|
|
else if s='N_FUNCTION' then
|
|
result:=tostr(N_FUNCTION)
|
|
else
|
|
internalerror(200401152);
|
|
end;
|
|
|
|
|
|
function TDebugInfoStabs.sym_stabstr_evaluate(sym:tsym;const s:string;const vars:array of string):Pchar;
|
|
begin
|
|
result:=string_evaluate(s,@sym_var_value,sym,vars);
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.insertsym(list:taasmoutput;sym:tsym);
|
|
|
|
function fieldvarsym_stabstr(sym:tfieldvarsym):Pchar;
|
|
begin
|
|
result:=nil;
|
|
if (sym.owner.symtabletype=objectsymtable) and
|
|
(sp_static in sym.symoptions) then
|
|
result:=sym_stabstr_evaluate(sym,'"${ownername}__${name}:S$1",${N_LCSYM},0,${line},${mangledname}',
|
|
[def_stab_number(sym.vartype.def)]);
|
|
end;
|
|
|
|
function globalvarsym_stabstr(sym:tglobalvarsym):Pchar;
|
|
var
|
|
st : string;
|
|
threadvaroffset : string;
|
|
regidx : Tregisterindex;
|
|
begin
|
|
result:=nil;
|
|
{ external symbols can't be resolved at link time, so we
|
|
can't generate stabs for them }
|
|
if vo_is_external in sym.varoptions then
|
|
exit;
|
|
st:=def_stab_number(sym.vartype.def);
|
|
case sym.localloc.loc of
|
|
LOC_REGISTER,
|
|
LOC_CREGISTER,
|
|
LOC_MMREGISTER,
|
|
LOC_CMMREGISTER,
|
|
LOC_FPUREGISTER,
|
|
LOC_CFPUREGISTER :
|
|
begin
|
|
regidx:=findreg_by_number(sym.localloc.register);
|
|
{ "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi", "eip", "ps", "cs", "ss", "ds", "es", "fs", "gs", }
|
|
{ this is the register order for GDB}
|
|
if regidx<>0 then
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:r$1",${N_RSYM},0,${line},$2',[st,tostr(regstabs_table[regidx])]);
|
|
end;
|
|
else
|
|
begin
|
|
if (vo_is_thread_var in sym.varoptions) then
|
|
threadvaroffset:='+'+tostr(sizeof(aint))
|
|
else
|
|
threadvaroffset:='';
|
|
{ Here we used S instead of
|
|
because with G GDB doesn't look at the address field
|
|
but searches the same name or with a leading underscore
|
|
but these names don't exist in pascal !}
|
|
st:='S'+st;
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:$1",${N_LCSYM},0,${line},${mangledname}$2',[st,threadvaroffset]);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function localvarsym_stabstr(sym:tlocalvarsym):Pchar;
|
|
var
|
|
st : string;
|
|
regidx : Tregisterindex;
|
|
begin
|
|
result:=nil;
|
|
{ There is no space allocated for not referenced locals }
|
|
if (sym.owner.symtabletype=localsymtable) and (sym.refs=0) then
|
|
exit;
|
|
|
|
st:=def_stab_number(sym.vartype.def);
|
|
case sym.localloc.loc of
|
|
LOC_REGISTER,
|
|
LOC_CREGISTER,
|
|
LOC_MMREGISTER,
|
|
LOC_CMMREGISTER,
|
|
LOC_FPUREGISTER,
|
|
LOC_CFPUREGISTER :
|
|
begin
|
|
regidx:=findreg_by_number(sym.localloc.register);
|
|
{ "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi", "eip", "ps", "cs", "ss", "ds", "es", "fs", "gs", }
|
|
{ this is the register order for GDB}
|
|
if regidx<>0 then
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:r$1",${N_RSYM},0,${line},$2',[st,tostr(regstabs_table[regidx])]);
|
|
end;
|
|
LOC_REFERENCE :
|
|
{ offset to ebp => will not work if the framepointer is esp
|
|
so some optimizing will make things harder to debug }
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:$1",${N_TSYM},0,${line},$2',[st,tostr(sym.localloc.reference.offset)])
|
|
else
|
|
internalerror(2003091814);
|
|
end;
|
|
end;
|
|
|
|
function paravarsym_stabstr(sym:tparavarsym):Pchar;
|
|
var
|
|
st : string;
|
|
regidx : Tregisterindex;
|
|
c : char;
|
|
begin
|
|
result:=nil;
|
|
{ set loc to LOC_REFERENCE to get somewhat usable debugging info for -Or }
|
|
{ while stabs aren't adapted for regvars yet }
|
|
if (vo_is_self in sym.varoptions) then
|
|
begin
|
|
case sym.localloc.loc of
|
|
LOC_REGISTER,
|
|
LOC_CREGISTER:
|
|
regidx:=findreg_by_number(sym.localloc.register);
|
|
LOC_REFERENCE: ;
|
|
else
|
|
internalerror(2003091815);
|
|
end;
|
|
if (po_classmethod in tabstractprocdef(sym.owner.defowner).procoptions) or
|
|
(po_staticmethod in tabstractprocdef(sym.owner.defowner).procoptions) then
|
|
begin
|
|
if (sym.localloc.loc=LOC_REFERENCE) then
|
|
result:=sym_stabstr_evaluate(sym,'"pvmt:p$1",${N_TSYM},0,0,$2',
|
|
[def_stab_number(pvmttype.def),tostr(sym.localloc.reference.offset)]);
|
|
(* else
|
|
result:=sym_stabstr_evaluate(sym,'"pvmt:r$1",${N_RSYM},0,0,$2',
|
|
[def_stab_number(pvmttype.def),tostr(regstabs_table[regidx])]) *)
|
|
end
|
|
else
|
|
begin
|
|
if not(is_class(tprocdef(sym.owner.defowner)._class)) then
|
|
c:='v'
|
|
else
|
|
c:='p';
|
|
if (sym.localloc.loc=LOC_REFERENCE) then
|
|
result:=sym_stabstr_evaluate(sym,'"$$t:$1",${N_TSYM},0,0,$2',
|
|
[c+def_stab_number(tprocdef(sym.owner.defowner)._class),tostr(sym.localloc.reference.offset)]);
|
|
(* else
|
|
result:=sym_stabstr_evaluate(sym,'"$$t:r$1",${N_RSYM},0,0,$2',
|
|
[c+def_stab_number(tprocdef(sym.owner.defowner)._class),tostr(regstabs_table[regidx])]); *)
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
st:=def_stab_number(sym.vartype.def);
|
|
|
|
if paramanager.push_addr_param(sym.varspez,sym.vartype.def,tprocdef(sym.owner.defowner).proccalloption) and
|
|
not(vo_has_local_copy in sym.varoptions) and
|
|
not is_open_string(sym.vartype.def) then
|
|
st := 'v'+st { should be 'i' but 'i' doesn't work }
|
|
else
|
|
st := 'p'+st;
|
|
case sym.localloc.loc of
|
|
LOC_REGISTER,
|
|
LOC_CREGISTER,
|
|
LOC_MMREGISTER,
|
|
LOC_CMMREGISTER,
|
|
LOC_FPUREGISTER,
|
|
LOC_CFPUREGISTER :
|
|
begin
|
|
regidx:=findreg_by_number(sym.localloc.register);
|
|
{ "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi", "eip", "ps", "cs", "ss", "ds", "es", "fs", "gs", }
|
|
{ this is the register order for GDB}
|
|
if regidx<>0 then
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:r$1",${N_RSYM},0,${line},$2',[st,tostr(longint(regstabs_table[regidx]))]);
|
|
end;
|
|
LOC_REFERENCE :
|
|
{ offset to ebp => will not work if the framepointer is esp
|
|
so some optimizing will make things harder to debug }
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:$1",${N_TSYM},0,${line},$2',[st,tostr(sym.localloc.reference.offset)])
|
|
else
|
|
internalerror(2003091814);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function constsym_stabstr(sym:tconstsym):Pchar;
|
|
var
|
|
st : string;
|
|
begin
|
|
case sym.consttyp of
|
|
conststring:
|
|
begin
|
|
if sym.value.len<200 then
|
|
st:='s'''+backspace_quote(octal_quote(strpas(pchar(sym.value.valueptr)),[#0..#9,#11,#12,#14..#31,'''']),['"','\',#10,#13])+''''
|
|
else
|
|
st:='<constant string too long>';
|
|
end;
|
|
constord:
|
|
st:='i'+tostr(sym.value.valueord);
|
|
constpointer:
|
|
st:='i'+tostr(sym.value.valueordptr);
|
|
constreal:
|
|
begin
|
|
system.str(pbestreal(sym.value.valueptr)^,st);
|
|
st := 'r'+st;
|
|
end;
|
|
else
|
|
begin
|
|
{ if we don't know just put zero !! }
|
|
st:='i0';
|
|
end;
|
|
end;
|
|
{ valgrind does not support constants }
|
|
if cs_gdb_valgrind in aktglobalswitches then
|
|
result:=nil
|
|
else
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:c=$1;",${N_FUNCTION},0,${line},0',[st]);
|
|
end;
|
|
|
|
function typesym_stabstr(sym:ttypesym) : pchar;
|
|
var
|
|
stabchar : string[2];
|
|
begin
|
|
result:=nil;
|
|
if not assigned(sym.restype.def) then
|
|
internalerror(200509262);
|
|
if sym.restype.def.deftype in tagtypes then
|
|
stabchar:='Tt'
|
|
else
|
|
stabchar:='t';
|
|
result:=sym_stabstr_evaluate(sym,'"${name}:$1$2",${N_LSYM},0,${line},0',[stabchar,def_stab_number(sym.restype.def)]);
|
|
end;
|
|
|
|
function procsym_stabstr(sym:tprocsym) : pchar;
|
|
var
|
|
i : longint;
|
|
begin
|
|
result:=nil;
|
|
for i:=1 to sym.procdef_count do
|
|
write_procdef(list,sym.procdef[i]);
|
|
end;
|
|
|
|
var
|
|
stabstr : Pchar;
|
|
begin
|
|
stabstr:=nil;
|
|
case sym.typ of
|
|
labelsym :
|
|
stabstr:=sym_stabstr_evaluate(sym,'"${name}",${N_LSYM},0,${line},0',[]);
|
|
fieldvarsym :
|
|
stabstr:=fieldvarsym_stabstr(tfieldvarsym(sym));
|
|
globalvarsym :
|
|
stabstr:=globalvarsym_stabstr(tglobalvarsym(sym));
|
|
localvarsym :
|
|
stabstr:=localvarsym_stabstr(tlocalvarsym(sym));
|
|
paravarsym :
|
|
stabstr:=paravarsym_stabstr(tparavarsym(sym));
|
|
typedconstsym :
|
|
stabstr:=sym_stabstr_evaluate(sym,'"${name}:S$1",${N_STSYM},0,${line},${mangledname}',
|
|
[def_stab_number(ttypedconstsym(sym).typedconsttype.def)]);
|
|
constsym :
|
|
stabstr:=constsym_stabstr(tconstsym(sym));
|
|
typesym :
|
|
stabstr:=typesym_stabstr(ttypesym(sym));
|
|
procsym :
|
|
stabstr:=procsym_stabstr(tprocsym(sym));
|
|
end;
|
|
if stabstr<>nil then
|
|
list.concat(Tai_stab.create(stab_stabs,stabstr));
|
|
{ For object types write also the symtable entries }
|
|
if (sym.typ=typesym) and (ttypesym(sym).restype.def.deftype=objectdef) then
|
|
write_symtable_syms(list,tobjectdef(ttypesym(sym).restype.def).symtable);
|
|
sym.isstabwritten:=true;
|
|
end;
|
|
|
|
|
|
procedure TDebugInfoStabs.write_symtable_syms(list:taasmoutput;st:tsymtable);
|
|
var
|
|
p : tsym;
|
|
begin
|
|
case st.symtabletype of
|
|
staticsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Syms - Begin Staticsymtable')));
|
|
globalsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Syms - Begin unit '+st.name^+' has index '+tostr(st.moduleid))));
|
|
end;
|
|
p:=tsym(st.symindex.first);
|
|
while assigned(p) do
|
|
begin
|
|
if (not p.isstabwritten) then
|
|
insertsym(list,p);
|
|
p:=tsym(p.indexnext);
|
|
end;
|
|
case st.symtabletype of
|
|
staticsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Syms - End Staticsymtable')));
|
|
globalsymtable :
|
|
list.concat(tai_comment.Create(strpnew('Syms - End unit '+st.name^+' has index '+tostr(st.moduleid))));
|
|
end;
|
|
end;
|
|
|
|
{****************************************************************************
|
|
Proc/Module support
|
|
****************************************************************************}
|
|
|
|
procedure tdebuginfostabs.inserttypeinfo;
|
|
|
|
procedure reset_unit_type_info;
|
|
var
|
|
hp : tmodule;
|
|
begin
|
|
hp:=tmodule(loaded_units.first);
|
|
while assigned(hp) do
|
|
begin
|
|
hp.is_stab_written:=false;
|
|
hp:=tmodule(hp.next);
|
|
end;
|
|
end;
|
|
|
|
procedure write_used_unit_type_info(list:taasmoutput;hp:tmodule);
|
|
var
|
|
pu : tused_unit;
|
|
begin
|
|
pu:=tused_unit(hp.used_units.first);
|
|
while assigned(pu) do
|
|
begin
|
|
if not pu.u.is_stab_written then
|
|
begin
|
|
{ prevent infinte loop for circular dependencies }
|
|
pu.u.is_stab_written:=true;
|
|
{ write type info from used units, use a depth first
|
|
strategy to reduce the recursion in writing all
|
|
dependent stabs }
|
|
write_used_unit_type_info(list,pu.u);
|
|
if assigned(pu.u.globalsymtable) then
|
|
write_symtable_defs(list,pu.u.globalsymtable);
|
|
end;
|
|
pu:=tused_unit(pu.next);
|
|
end;
|
|
end;
|
|
|
|
var
|
|
stabsvarlist,
|
|
stabstypelist : taasmoutput;
|
|
storefilepos : tfileposinfo;
|
|
st : tsymtable;
|
|
i : longint;
|
|
begin
|
|
storefilepos:=aktfilepos;
|
|
aktfilepos:=current_module.mainfilepos;
|
|
|
|
global_stab_number:=0;
|
|
defnumberlist:=tlist.create;
|
|
stabsvarlist:=taasmoutput.create;
|
|
stabstypelist:=taasmoutput.create;
|
|
|
|
{ include symbol that will be referenced from the main to be sure to
|
|
include this debuginfo .o file }
|
|
if current_module.is_unit then
|
|
begin
|
|
current_module.flags:=current_module.flags or uf_has_debuginfo;
|
|
st:=current_module.globalsymtable;
|
|
end
|
|
else
|
|
st:=current_module.localsymtable;
|
|
new_section(asmlist[al_stabs],sec_data,st.name^,0);
|
|
asmlist[al_stabs].concat(tai_symbol.Createname_global(make_mangledname('DEBUGINFO',st,''),AT_DATA,0));
|
|
|
|
{ first write all global/local symbols. This will flag all required tdefs }
|
|
if assigned(current_module.globalsymtable) then
|
|
write_symtable_syms(stabsvarlist,current_module.globalsymtable);
|
|
if assigned(current_module.localsymtable) then
|
|
write_symtable_syms(stabsvarlist,current_module.localsymtable);
|
|
|
|
{ reset unit type info flag }
|
|
reset_unit_type_info;
|
|
|
|
{ write used types from the used units }
|
|
write_used_unit_type_info(stabstypelist,current_module);
|
|
{ last write the types from this unit }
|
|
if assigned(current_module.globalsymtable) then
|
|
write_symtable_defs(stabstypelist,current_module.globalsymtable);
|
|
if assigned(current_module.localsymtable) then
|
|
write_symtable_defs(stabstypelist,current_module.localsymtable);
|
|
|
|
asmlist[al_stabs].concatlist(stabstypelist);
|
|
asmlist[al_stabs].concatlist(stabsvarlist);
|
|
|
|
{ reset stab numbers }
|
|
for i:=0 to defnumberlist.count-1 do
|
|
begin
|
|
if assigned(defnumberlist[i]) then
|
|
begin
|
|
tdef(defnumberlist[i]).stab_number:=0;
|
|
tdef(defnumberlist[i]).stab_state:=stab_state_unused;
|
|
end;
|
|
end;
|
|
|
|
defnumberlist.free;
|
|
defnumberlist:=nil;
|
|
|
|
stabsvarlist.free;
|
|
stabstypelist.free;
|
|
aktfilepos:=storefilepos;
|
|
end;
|
|
|
|
|
|
procedure tdebuginfostabs.insertlineinfo(list:taasmoutput);
|
|
var
|
|
currfileinfo,
|
|
lastfileinfo : tfileposinfo;
|
|
currfuncname : pstring;
|
|
currsectype : tasmsectiontype;
|
|
hlabel : tasmlabel;
|
|
hp : tai;
|
|
infile : tinputfile;
|
|
begin
|
|
FillChar(lastfileinfo,sizeof(lastfileinfo),0);
|
|
currfuncname:=nil;
|
|
currsectype:=sec_code;
|
|
hp:=Tai(list.first);
|
|
while assigned(hp) do
|
|
begin
|
|
case hp.typ of
|
|
ait_section :
|
|
currsectype:=tai_section(hp).sectype;
|
|
ait_function_name :
|
|
currfuncname:=tai_function_name(hp).funcname;
|
|
ait_force_line :
|
|
lastfileinfo.line:=-1;
|
|
end;
|
|
|
|
if (currsectype=sec_code) and
|
|
(hp.typ=ait_instruction) then
|
|
begin
|
|
currfileinfo:=tailineinfo(hp).fileinfo;
|
|
{ file changed ? (must be before line info) }
|
|
if (currfileinfo.fileindex<>0) and
|
|
(lastfileinfo.fileindex<>currfileinfo.fileindex) then
|
|
begin
|
|
infile:=current_module.sourcefiles.get_file(currfileinfo.fileindex);
|
|
if assigned(infile) then
|
|
begin
|
|
objectlibrary.getlabel(hlabel,alt_dbgfile);
|
|
{ emit stabs }
|
|
if (infile.path^<>'') then
|
|
list.insertbefore(Tai_stab.Create_str(stab_stabs,'"'+BsToSlash(FixPath(infile.path^,false))+'",'+tostr(n_includefile)+
|
|
',0,0,'+hlabel.name),hp);
|
|
list.insertbefore(Tai_stab.Create_str(stab_stabs,'"'+FixFileName(infile.name^)+'",'+tostr(n_includefile)+
|
|
',0,0,'+hlabel.name),hp);
|
|
list.insertbefore(tai_label.create(hlabel),hp);
|
|
{ force new line info }
|
|
lastfileinfo.line:=-1;
|
|
end;
|
|
end;
|
|
|
|
{ line changed ? }
|
|
if (lastfileinfo.line<>currfileinfo.line) and (currfileinfo.line<>0) then
|
|
begin
|
|
if assigned(currfuncname) and
|
|
(target_info.use_function_relative_addresses) then
|
|
begin
|
|
objectlibrary.getlabel(hlabel,alt_dbgline);
|
|
list.insertbefore(Tai_stab.Create_str(stab_stabn,tostr(n_textline)+',0,'+tostr(currfileinfo.line)+','+
|
|
hlabel.name+' - '+{$IFDEF POWERPC64}'.'+{$ENDIF POWERPC64}currfuncname^),hp);
|
|
list.insertbefore(tai_label.create(hlabel),hp);
|
|
end
|
|
else
|
|
list.insertbefore(Tai_stab.Create_str(stab_stabd,tostr(n_textline)+',0,'+tostr(currfileinfo.line)),hp);
|
|
end;
|
|
lastfileinfo:=currfileinfo;
|
|
end;
|
|
|
|
hp:=tai(hp.next);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tdebuginfostabs.insertmoduleinfo;
|
|
var
|
|
hlabel : tasmlabel;
|
|
infile : tinputfile;
|
|
templist : taasmoutput;
|
|
begin
|
|
{ emit main source n_sourcefile for start of module }
|
|
objectlibrary.getlabel(hlabel,alt_dbgfile);
|
|
infile:=current_module.sourcefiles.get_file(1);
|
|
templist:=taasmoutput.create;
|
|
new_section(templist,sec_code,'',0);
|
|
if (infile.path^<>'') then
|
|
templist.concat(Tai_stab.Create_str(stab_stabs,'"'+BsToSlash(FixPath(infile.path^,false))+'",'+tostr(n_sourcefile)+
|
|
',0,0,'+hlabel.name));
|
|
templist.concat(Tai_stab.Create_str(stab_stabs,'"'+FixFileName(infile.name^)+'",'+tostr(n_sourcefile)+
|
|
',0,0,'+hlabel.name));
|
|
templist.concat(tai_label.create(hlabel));
|
|
asmlist[al_stabsstart].insertlist(templist);
|
|
templist.free;
|
|
{ emit empty n_sourcefile for end of module }
|
|
objectlibrary.getlabel(hlabel,alt_dbgfile);
|
|
templist:=taasmoutput.create;
|
|
new_section(templist,sec_code,'',0);
|
|
templist.concat(Tai_stab.Create_str(stab_stabs,'"",'+tostr(n_sourcefile)+',0,0,'+hlabel.name));
|
|
templist.concat(tai_label.create(hlabel));
|
|
asmlist[al_stabsend].insertlist(templist);
|
|
templist.free;
|
|
end;
|
|
|
|
|
|
procedure tdebuginfostabs.referencesections(list:taasmoutput);
|
|
var
|
|
hp : tused_unit;
|
|
begin
|
|
{ Reference all DEBUGINFO sections from the main .text section }
|
|
if (target_info.system <> system_powerpc_macos) then
|
|
begin
|
|
{ include reference to all debuginfo sections of used units }
|
|
hp:=tused_unit(usedunits.first);
|
|
while assigned(hp) do
|
|
begin
|
|
If (hp.u.flags and uf_has_debuginfo)=uf_has_debuginfo then
|
|
list.concat(Tai_const.Createname(make_mangledname('DEBUGINFO',hp.u.globalsymtable,''),AT_DATA,0));
|
|
hp:=tused_unit(hp.next);
|
|
end;
|
|
{ include reference to debuginfo for this program }
|
|
list.concat(Tai_const.Createname(make_mangledname('DEBUGINFO',current_module.localsymtable,''),AT_DATA,0));
|
|
end;
|
|
end;
|
|
|
|
|
|
const
|
|
dbg_stabs_info : tdbginfo =
|
|
(
|
|
id : dbg_stabs;
|
|
idtxt : 'STABS';
|
|
);
|
|
|
|
initialization
|
|
RegisterDebugInfo(dbg_stabs_info,TDebugInfoStabs);
|
|
end.
|