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	 28381b1287
			
		
	
	
		28381b1287
		
	
	
	
	
		
			
			+ added automatic definition of FPC_REQUIRES_PROPER_ALIGNMENT define for PowerPC64 target git-svn-id: trunk@1278 -
		
			
				
	
	
		
			871 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
			
		
		
	
	
			871 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
| {
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|     Copyright (c) 1998-2004 by the Free Pascal team
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| 
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|     This unit implements generic GNU assembler (v2.8 or later)
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| 
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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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| 
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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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| { Base unit for writing GNU assembler output.
 | |
| }
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| unit aggas;
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| 
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| {$i fpcdefs.inc}
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| 
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| interface
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| 
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|     uses
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| {$IFDEF USE_SYSUTILS}
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|       SysUtils,
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| {$ELSE USE_SYSUTILS}
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|       dos,
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| {$ENDIF USE_SYSUTILS}
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|       cclasses,
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|       globals,
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|       aasmbase,aasmtai,aasmcpu,
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|       assemble;
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| 
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| 
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|     type
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|       {# This is a derived class which is used to write
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|          GAS styled assembler.
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| 
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|          The WriteInstruction() method must be overriden
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|          to write a single instruction to the assembler
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|          file.
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|       }
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|       TGNUAssembler=class(texternalassembler)
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|       protected
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|         function sectionname(atype:tasmsectiontype;const aname:string):string;virtual;
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|         procedure WriteSection(atype:tasmsectiontype;const aname:string);
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|         procedure WriteExtraHeader;virtual;
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|         procedure WriteInstruction(hp: tai);  virtual; abstract;
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|       public
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|         procedure WriteTree(p:TAAsmoutput);override;
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|         procedure WriteAsmList;override;
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|       end;
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| 
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| 
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| implementation
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| 
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|     uses
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|       cutils,globtype,systems,
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|       fmodule,finput,verbose,
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|       itcpugas
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|       ;
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| 
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|     const
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|       line_length = 70;
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| 
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|     var
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|       CurrSecType  : TAsmSectionType; { last section type written }
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|       lastfileinfo : tfileposinfo;
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|       infile,
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|       lastinfile   : tinputfile;
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|       symendcount  : longint;
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| 
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|     type
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| {$ifdef cpuextended}
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|       t80bitarray = array[0..9] of byte;
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| {$endif cpuextended}
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|       t64bitarray = array[0..7] of byte;
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|       t32bitarray = array[0..3] of byte;
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| 
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| {****************************************************************************}
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| {                          Support routines                                  }
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| {****************************************************************************}
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| 
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|    function fixline(s:string):string;
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|    {
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|      return s with all leading and ending spaces and tabs removed
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|    }
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|      var
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|        i,j,k : integer;
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|      begin
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|        i:=length(s);
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|        while (i>0) and (s[i] in [#9,' ']) do
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|         dec(i);
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|        j:=1;
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|        while (j<i) and (s[j] in [#9,' ']) do
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|         inc(j);
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|        for k:=j to i do
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|         if s[k] in [#0..#31,#127..#255] then
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|          s[k]:='.';
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|        fixline:=Copy(s,j,i-j+1);
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|      end;
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| 
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|     function single2str(d : single) : string;
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|       var
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|          hs : string;
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|       begin
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|          str(d,hs);
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|       { replace space with + }
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|          if hs[1]=' ' then
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|           hs[1]:='+';
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|          single2str:='0d'+hs
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|       end;
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| 
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|     function double2str(d : double) : string;
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|       var
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|          hs : string;
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|       begin
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|          str(d,hs);
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|       { replace space with + }
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|          if hs[1]=' ' then
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|           hs[1]:='+';
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|          double2str:='0d'+hs
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|       end;
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| 
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|     function extended2str(e : extended) : string;
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|       var
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|          hs : string;
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|       begin
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|          str(e,hs);
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|       { replace space with + }
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|          if hs[1]=' ' then
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|           hs[1]:='+';
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|          extended2str:='0d'+hs
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|       end;
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| 
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| 
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|   { convert floating point values }
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|   { to correct endian             }
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|   procedure swap64bitarray(var t: t64bitarray);
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|     var
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|      b: byte;
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|     begin
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|       b:= t[7];
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|       t[7] := t[0];
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|       t[0] := b;
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| 
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|       b := t[6];
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|       t[6] := t[1];
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|       t[1] := b;
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| 
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|       b:= t[5];
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|       t[5] := t[2];
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|       t[2] := b;
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| 
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|       b:= t[4];
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|       t[4] := t[3];
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|       t[3] := b;
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|    end;
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| 
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| 
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|    procedure swap32bitarray(var t: t32bitarray);
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|     var
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|      b: byte;
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|     begin
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|       b:= t[1];
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|       t[1]:= t[2];
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|       t[2]:= b;
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| 
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|       b:= t[0];
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|       t[0]:= t[3];
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|       t[3]:= b;
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|     end;
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| 
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| 
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|     const
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|       ait_const2str : array[ait_const_128bit..ait_const_indirect_symbol] of string[20]=(
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|         #9'.fixme128'#9,#9'.quad'#9,#9'.long'#9,#9'.short'#9,#9'.byte'#9,
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|         #9'.sleb128'#9,#9'.uleb128'#9,
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|         #9'.rva'#9,#9'.indirect_symbol'#9
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|       );
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| 
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| {****************************************************************************}
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| {                          GNU Assembler writer                              }
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| {****************************************************************************}
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| 
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|     function TGNUAssembler.sectionname(atype:tasmsectiontype;const aname:string):string;
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|       const
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|         secnames : array[tasmsectiontype] of string[12] = ('',
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| {$warning TODO .rodata not yet working}
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|           '.text','.data','.data','.bss','.threadvar',
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|           'common',
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|           '.note',
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|           '__TEXT', { stubs }
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|           '.stab','.stabstr',
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|           '.idata$2','.idata$4','.idata$5','.idata$6','.idata$7','.edata',
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|           '.eh_frame',
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|           '.debug_frame',
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|           'fpc.resptrs'
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|         );
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|       begin
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|         if use_smartlink_section and
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|            (aname<>'') then
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|           result:=secnames[atype]+'.'+aname
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|         else
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|           result:=secnames[atype];
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|       end;
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| 
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| 
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|     procedure TGNUAssembler.WriteSection(atype:tasmsectiontype;const aname:string);
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|       var
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|         s : string;
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|       begin
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|         AsmLn;
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|         case target_info.system of
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|          system_i386_OS2,
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|          system_i386_EMX : ;
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|          system_powerpc_darwin :
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|            begin
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|              if atype=sec_stub then
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|                AsmWrite('.section ');
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|            end;
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|          else
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|           AsmWrite('.section ');
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|         end;
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|         s:=sectionname(atype,aname);
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|         AsmWrite(s);
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|         case atype of
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|           sec_fpc :
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|             AsmWrite(', "a", @progbits');
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|           sec_stub :
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|             begin
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|               if target_info.system=system_powerpc_darwin then
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|                 AsmWrite(',__symbol_stub1,symbol_stubs,pure_instructions,16');
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|             end;
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|         end;
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|         AsmLn;
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|         CurrSecType:=atype;
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|       end;
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| 
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| 
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|     procedure TGNUAssembler.WriteTree(p:TAAsmoutput);
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| 
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|     function needsObject(hp : tai_symbol) : boolean;
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|     begin
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|       needsObject :=
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|           assigned(hp.next) and
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|           (tai_symbol(hp.next).typ in [ait_const_rva_symbol,
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|              ait_const_32bit,ait_const_16bit,ait_const_8bit,ait_datablock,
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|              ait_real_32bit,ait_real_64bit,ait_real_80bit,ait_comp_64bit]);
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|     end;
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| 
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|     var
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|       ch       : char;
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|       hp       : tai;
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|       hp1      : tailineinfo;
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|       consttyp : taitype;
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|       s        : string;
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|       i,pos,l  : longint;
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|       InlineLevel : longint;
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|       last_align : longint;
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|       co       : comp;
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|       sin      : single;
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|       d        : double;
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| {$ifdef cpuextended}
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|       e        : extended;
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| {$endif cpuextended}
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|       do_line  : boolean;
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| 
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|       sepChar : char;
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|     begin
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|       if not assigned(p) then
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|        exit;
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| 
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|       last_align := 2;
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|       InlineLevel:=0;
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|       { lineinfo is only needed for al_procedures (PFV) }
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|       do_line:=(cs_asm_source in aktglobalswitches) or
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|                ((cs_lineinfo in aktmoduleswitches)
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|                  and (p=asmlist[al_procedures]));
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|       hp:=tai(p.first);
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|       while assigned(hp) do
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|        begin
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|          if not(hp.typ in SkipLineInfo) then
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|           begin
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|             hp1 := hp as tailineinfo;
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|             aktfilepos:=hp1.fileinfo;
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|              { no line info for inlined code }
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|              if do_line and (inlinelevel=0) then
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|               begin
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|                 { load infile }
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|                 if lastfileinfo.fileindex<>hp1.fileinfo.fileindex then
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|                  begin
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|                    infile:=current_module.sourcefiles.get_file(hp1.fileinfo.fileindex);
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|                    if assigned(infile) then
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|                     begin
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|                       { open only if needed !! }
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|                       if (cs_asm_source in aktglobalswitches) then
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|                        infile.open;
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|                     end;
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|                    { avoid unnecessary reopens of the same file !! }
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|                    lastfileinfo.fileindex:=hp1.fileinfo.fileindex;
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|                    { be sure to change line !! }
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|                    lastfileinfo.line:=-1;
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|                  end;
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|               { write source }
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|                 if (cs_asm_source in aktglobalswitches) and
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|                    assigned(infile) then
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|                  begin
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|                    if (infile<>lastinfile) then
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|                      begin
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|                        AsmWriteLn(target_asm.comment+'['+infile.name^+']');
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|                        if assigned(lastinfile) then
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|                          lastinfile.close;
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|                      end;
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|                    if (hp1.fileinfo.line<>lastfileinfo.line) and
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|                       ((hp1.fileinfo.line<infile.maxlinebuf) or (InlineLevel>0)) then
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|                      begin
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|                        if (hp1.fileinfo.line<>0) and
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|                           ((infile.linebuf^[hp1.fileinfo.line]>=0) or (InlineLevel>0)) then
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|                          AsmWriteLn(target_asm.comment+'['+tostr(hp1.fileinfo.line)+'] '+
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|                            fixline(infile.GetLineStr(hp1.fileinfo.line)));
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|                        { set it to a negative value !
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|                        to make that is has been read already !! PM }
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|                        if (infile.linebuf^[hp1.fileinfo.line]>=0) then
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|                          infile.linebuf^[hp1.fileinfo.line]:=-infile.linebuf^[hp1.fileinfo.line]-1;
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|                      end;
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|                  end;
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|                 lastfileinfo:=hp1.fileinfo;
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|                 lastinfile:=infile;
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|               end;
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|           end;
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| 
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|          case hp.typ of
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| 
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|            ait_comment :
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|              Begin
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|                AsmWrite(target_asm.comment);
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|                AsmWritePChar(tai_comment(hp).str);
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|                AsmLn;
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|              End;
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| 
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|            ait_regalloc :
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|              begin
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|                if (cs_asm_regalloc in aktglobalswitches) then
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|                  begin
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|                    AsmWrite(#9+target_asm.comment+'Register ');
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|                    repeat
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|                      AsmWrite(gas_regname(Tai_regalloc(hp).reg));
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|                      if (hp.next=nil) or
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|                         (tai(hp.next).typ<>ait_regalloc) or
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|                         (tai_regalloc(hp.next).ratype<>tai_regalloc(hp).ratype) then
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|                        break;
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|                      hp:=tai(hp.next);
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|                      AsmWrite(',');
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|                    until false;
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|                    AsmWrite(' ');
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|                    AsmWriteLn(regallocstr[tai_regalloc(hp).ratype]);
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|                  end;
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|              end;
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| 
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|            ait_tempalloc :
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|              begin
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|                if (cs_asm_tempalloc in aktglobalswitches) then
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|                  begin
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| {$ifdef EXTDEBUG}
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|                    if assigned(tai_tempalloc(hp).problem) then
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|                      AsmWriteLn(target_asm.comment+'Temp '+tostr(tai_tempalloc(hp).temppos)+','+
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|                        tostr(tai_tempalloc(hp).tempsize)+' '+tai_tempalloc(hp).problem^)
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|                    else
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| {$endif EXTDEBUG}
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|                      AsmWriteLn(target_asm.comment+'Temp '+tostr(tai_tempalloc(hp).temppos)+','+
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|                        tostr(tai_tempalloc(hp).tempsize)+' '+tempallocstr[tai_tempalloc(hp).allocation]);
 | |
|                  end;
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|              end;
 | |
| 
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|            ait_align :
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|              begin
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|                if tai_align(hp).aligntype>1 then
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|                  begin
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|                    if target_info.system <> system_powerpc_darwin then
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|                      begin
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|                        AsmWrite(#9'.balign '+tostr(tai_align(hp).aligntype));
 | |
|                        if tai_align(hp).use_op then
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|                         AsmWrite(','+tostr(tai_align(hp).fillop))
 | |
|                      end
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|                    else
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|                      begin
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|                        { darwin as only supports .align }
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|                        if not ispowerof2(tai_align(hp).aligntype,i) then
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|                          internalerror(2003010305);
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|                        AsmWrite(#9'.align '+tostr(i));
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|                        last_align := i;
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|                      end;
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|                    AsmLn;
 | |
|                  end;
 | |
|              end;
 | |
| 
 | |
|            ait_section :
 | |
|              begin
 | |
|                if tai_section(hp).sectype<>sec_none then
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|                  WriteSection(tai_section(hp).sectype,tai_section(hp).name^)
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|                else
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|                  begin
 | |
| {$ifdef EXTDEBUG}
 | |
|                    AsmWrite(target_asm.comment);
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|                    AsmWriteln(' sec_none');
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| {$endif EXTDEBUG}
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|                 end;
 | |
|              end;
 | |
| 
 | |
|            ait_datablock :
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|              begin
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|                if target_info.system=system_powerpc_darwin then
 | |
|                  begin
 | |
|                    {On Mac OS X you can't have common symbols in a shared
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|                     library, since those are in the TEXT section and the text section is
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|                     read-only in shared libraries (so it can be shared among different
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|                     processes). The alternate code creates some kind of common symbols in
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|                     the data segment. The generic code no longer uses common symbols, but
 | |
|                     this doesn't work on Mac OS X as well.}
 | |
|                    if tai_datablock(hp).is_global then
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|                      begin
 | |
|                        asmwrite('.globl ');
 | |
|                        asmwriteln(tai_datablock(hp).sym.name);
 | |
|                        asmwriteln('.data');
 | |
|                        asmwrite('.zerofill __DATA, __common, ');
 | |
|                        asmwrite(tai_datablock(hp).sym.name);
 | |
|                        asmwriteln(', '+tostr(tai_datablock(hp).size)+','+tostr(last_align));
 | |
|                        if not(CurrSecType in [sec_data,sec_none]) then
 | |
|                          writesection(CurrSecType,'');
 | |
|                      end
 | |
|                    else
 | |
|                      begin
 | |
|                        asmwrite(#9'.lcomm'#9);
 | |
|                        asmwrite(tai_datablock(hp).sym.name);
 | |
|                        asmwrite(','+tostr(tai_datablock(hp).size));
 | |
|                        asmwrite(','+tostr(last_align));
 | |
|                        asmwriteln('');
 | |
|                      end
 | |
|                  end
 | |
|                else
 | |
|                  begin
 | |
|                    if Tai_datablock(hp).is_global then
 | |
|                      begin
 | |
|                        asmwrite(#9'.globl ');
 | |
|                        asmwriteln(Tai_datablock(hp).sym.name);
 | |
|                      end;
 | |
|                    asmwrite(Tai_datablock(hp).sym.name);
 | |
|                    asmwriteln(':');
 | |
|                    asmwriteln(#9'.space '+tostr(Tai_datablock(hp).size));
 | |
|                  end;
 | |
|              end;
 | |
| 
 | |
| {$ifndef cpu64bit}
 | |
|            ait_const_128bit :
 | |
|               begin
 | |
|                 internalerror(200404291);
 | |
|               end;
 | |
| 
 | |
|            ait_const_64bit :
 | |
|               begin
 | |
|                 if assigned(tai_const(hp).sym) then
 | |
|                   internalerror(200404292);
 | |
|                 AsmWrite(ait_const2str[ait_const_32bit]);
 | |
|                 if target_info.endian = endian_little then
 | |
|                   begin
 | |
|                     AsmWrite(tostr(longint(lo(tai_const(hp).value))));
 | |
|                     AsmWrite(',');
 | |
|                     AsmWrite(tostr(longint(hi(tai_const(hp).value))));
 | |
|                   end
 | |
|                 else
 | |
|                   begin
 | |
|                     AsmWrite(tostr(longint(hi(tai_const(hp).value))));
 | |
|                     AsmWrite(',');
 | |
|                     AsmWrite(tostr(longint(lo(tai_const(hp).value))));
 | |
|                   end;
 | |
|                 AsmLn;
 | |
|               end;
 | |
| {$endif cpu64bit}
 | |
| 
 | |
|            ait_const_uleb128bit,
 | |
|            ait_const_sleb128bit,
 | |
| {$ifdef cpu64bit}
 | |
|            ait_const_128bit,
 | |
|            ait_const_64bit,
 | |
| {$endif cpu64bit}
 | |
|            ait_const_32bit,
 | |
|            ait_const_16bit,
 | |
|            ait_const_8bit,
 | |
|            ait_const_rva_symbol,
 | |
|            ait_const_indirect_symbol :
 | |
|              begin
 | |
|                AsmWrite(ait_const2str[hp.typ]);
 | |
|                consttyp:=hp.typ;
 | |
|                l:=0;
 | |
|                repeat
 | |
|                  if assigned(tai_const(hp).sym) then
 | |
|                    begin
 | |
|                      if assigned(tai_const(hp).endsym) then
 | |
|                        s:=tai_const(hp).endsym.name+'-'+tai_const(hp).sym.name
 | |
|                      else
 | |
|                        s:=tai_const(hp).sym.name;
 | |
|                      if tai_const(hp).value<>0 then
 | |
|                        s:=s+tostr_with_plus(tai_const(hp).value);
 | |
|                    end
 | |
|                  else
 | |
|                    s:=tostr(tai_const(hp).value);
 | |
|                  AsmWrite(s);
 | |
|                  inc(l,length(s));
 | |
|                  { Values with symbols are written on a single line to improve
 | |
|                    reading of the .s file (PFV) }
 | |
|                  if assigned(tai_const(hp).sym) or
 | |
|                     not(CurrSecType in [sec_data,sec_rodata]) or
 | |
|                     (l>line_length) or
 | |
|                     (hp.next=nil) or
 | |
|                     (tai(hp.next).typ<>consttyp) or
 | |
|                     assigned(tai_const(hp.next).sym) then
 | |
|                    break;
 | |
|                  hp:=tai(hp.next);
 | |
|                  AsmWrite(',');
 | |
|                until false;
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
| {$ifdef cpuextended}
 | |
|            ait_real_80bit :
 | |
|              begin
 | |
|                if do_line then
 | |
|                 AsmWriteLn(target_asm.comment+'value: '+extended2str(tai_real_80bit(hp).value));
 | |
|              { Make sure e is a extended type, bestreal could be
 | |
|                a different type (bestreal) !! (PFV) }
 | |
|                e:=tai_real_80bit(hp).value;
 | |
|                AsmWrite(#9'.byte'#9);
 | |
|                for i:=0 to 9 do
 | |
|                 begin
 | |
|                   if i<>0 then
 | |
|                    AsmWrite(',');
 | |
|                   AsmWrite(tostr(t80bitarray(e)[i]));
 | |
|                 end;
 | |
|                AsmLn;
 | |
|              end;
 | |
| {$endif cpuextended}
 | |
| 
 | |
|            ait_real_64bit :
 | |
|              begin
 | |
|                if do_line then
 | |
|                 AsmWriteLn(target_asm.comment+'value: '+double2str(tai_real_64bit(hp).value));
 | |
|                d:=tai_real_64bit(hp).value;
 | |
|                { swap the values to correct endian if required }
 | |
|                if source_info.endian <> target_info.endian then
 | |
|                  swap64bitarray(t64bitarray(d));
 | |
|                AsmWrite(#9'.byte'#9);
 | |
| {$ifdef arm}
 | |
| { on a real arm cpu, it's already hi/lo swapped }
 | |
| {$ifndef cpuarm}
 | |
|                if tai_real_64bit(hp).formatoptions=fo_hiloswapped then
 | |
|                  begin
 | |
|                    for i:=4 to 7 do
 | |
|                      begin
 | |
|                        if i<>4 then
 | |
|                          AsmWrite(',');
 | |
|                        AsmWrite(tostr(t64bitarray(d)[i]));
 | |
|                      end;
 | |
|                    for i:=0 to 3 do
 | |
|                      begin
 | |
|                        AsmWrite(',');
 | |
|                        AsmWrite(tostr(t64bitarray(d)[i]));
 | |
|                      end;
 | |
|                  end
 | |
|                else
 | |
| {$endif cpuarm}
 | |
| {$endif arm}
 | |
|                  begin
 | |
|                    for i:=0 to 7 do
 | |
|                      begin
 | |
|                        if i<>0 then
 | |
|                          AsmWrite(',');
 | |
|                        AsmWrite(tostr(t64bitarray(d)[i]));
 | |
|                      end;
 | |
|                  end;
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            ait_real_32bit :
 | |
|              begin
 | |
|                if do_line then
 | |
|                 AsmWriteLn(target_asm.comment+'value: '+single2str(tai_real_32bit(hp).value));
 | |
|                sin:=tai_real_32bit(hp).value;
 | |
|                { swap the values to correct endian if required }
 | |
|                if source_info.endian <> target_info.endian then
 | |
|                  swap32bitarray(t32bitarray(sin));
 | |
|                AsmWrite(#9'.byte'#9);
 | |
|                for i:=0 to 3 do
 | |
|                 begin
 | |
|                   if i<>0 then
 | |
|                    AsmWrite(',');
 | |
|                   AsmWrite(tostr(t32bitarray(sin)[i]));
 | |
|                 end;
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            ait_comp_64bit :
 | |
|              begin
 | |
|                if do_line then
 | |
|                 AsmWriteLn(target_asm.comment+'value: '+extended2str(tai_comp_64bit(hp).value));
 | |
|                AsmWrite(#9'.byte'#9);
 | |
| {$ifdef FPC}
 | |
|                co:=comp(tai_comp_64bit(hp).value);
 | |
| {$else}
 | |
|                co:=tai_comp_64bit(hp).value;
 | |
| {$endif}
 | |
|                { swap the values to correct endian if required }
 | |
|                if source_info.endian <> target_info.endian then
 | |
|                  swap64bitarray(t64bitarray(co));
 | |
|                for i:=0 to 7 do
 | |
|                 begin
 | |
|                   if i<>0 then
 | |
|                    AsmWrite(',');
 | |
|                   AsmWrite(tostr(t64bitarray(co)[i]));
 | |
|                 end;
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            ait_string :
 | |
|              begin
 | |
|                pos:=0;
 | |
|                for i:=1 to tai_string(hp).len do
 | |
|                 begin
 | |
|                   if pos=0 then
 | |
|                    begin
 | |
|                      AsmWrite(#9'.ascii'#9'"');
 | |
|                      pos:=20;
 | |
|                    end;
 | |
|                   ch:=tai_string(hp).str[i-1];
 | |
|                   case ch of
 | |
|                      #0, {This can't be done by range, because a bug in FPC}
 | |
|                 #1..#31,
 | |
|              #128..#255 : s:='\'+tostr(ord(ch) shr 6)+tostr((ord(ch) and 63) shr 3)+tostr(ord(ch) and 7);
 | |
|                     '"' : s:='\"';
 | |
|                     '\' : s:='\\';
 | |
|                   else
 | |
|                    s:=ch;
 | |
|                   end;
 | |
|                   AsmWrite(s);
 | |
|                   inc(pos,length(s));
 | |
|                   if (pos>line_length) or (i=tai_string(hp).len) then
 | |
|                    begin
 | |
|                      AsmWriteLn('"');
 | |
|                      pos:=0;
 | |
|                    end;
 | |
|                 end;
 | |
|              end;
 | |
| 
 | |
|            ait_label :
 | |
|              begin
 | |
|                if (tai_label(hp).l.is_used) then
 | |
|                 begin
 | |
|                   if tai_label(hp).l.defbind=AB_GLOBAL then
 | |
|                    begin
 | |
|                      AsmWrite('.globl'#9);
 | |
|                      AsmWriteLn(tai_label(hp).l.name);
 | |
|                    end;
 | |
|                   AsmWrite(tai_label(hp).l.name);
 | |
|                   AsmWriteLn(':');
 | |
|                 end;
 | |
|              end;
 | |
|            ait_symbol :
 | |
|              begin
 | |
|                if tai_symbol(hp).is_global then
 | |
|                 begin
 | |
|                   AsmWrite('.globl'#9);
 | |
|                   AsmWriteLn(tai_symbol(hp).sym.name);
 | |
|                 end;
 | |
|                if (target_info.system = system_powerpc64_linux) and
 | |
|                  (tai_symbol(hp).sym.typ = AT_FUNCTION) then
 | |
|                  begin
 | |
|                    AsmWriteLn('.section "opd", "aw"');
 | |
|                    AsmWriteLn('.align 3');
 | |
|                    AsmWriteLn(tai_symbol(hp).sym.name + ':');
 | |
|                    AsmWriteLn('.quad .' + tai_symbol(hp).sym.name + ', .TOC.@tocbase, 0');
 | |
|                    AsmWriteLn('.previous');
 | |
|                    AsmWriteLn('.size ' + tai_symbol(hp).sym.name + ', 24');
 | |
|                    AsmWriteLn('.globl .' + tai_symbol(hp).sym.name);
 | |
|                    AsmWriteLn('.type .' + tai_symbol(hp).sym.name + ', @function');
 | |
|                    { the dotted name is the name of the actual function }
 | |
|                    AsmWrite('.');
 | |
|                  end
 | |
|                else
 | |
|                  begin
 | |
|                    if (target_info.system <> system_arm_linux) then
 | |
|                      begin
 | |
|                        sepChar := '@';
 | |
|                      end
 | |
|                    else
 | |
|                      begin
 | |
|                        sepChar := '#';
 | |
|                      end;
 | |
| 
 | |
|                    if (tf_needs_symbol_type in target_info.flags) then
 | |
|                      begin
 | |
|                        AsmWrite(#9'.type'#9 + tai_symbol(hp).sym.name);
 | |
|                        if (needsObject(tai_symbol(hp))) then
 | |
|                          begin
 | |
|                            AsmWriteLn(',' + sepChar + 'object');
 | |
|                          end
 | |
|                        else
 | |
|                          begin
 | |
|                            AsmWriteLn(',' + sepChar + 'function');
 | |
|                          end;
 | |
|                      end;
 | |
|                    if (tf_needs_symbol_size in target_info.flags) and (tai_symbol(hp).sym.size > 0) then begin
 | |
|                      AsmWriteLn(#9'.size'#9 + tai_symbol(hp).sym.name + ', ' + tostr(tai_symbol(hp).sym.size));
 | |
|                    end;
 | |
|                  end;
 | |
|                AsmWriteLn(tai_symbol(hp).sym.name + ':');
 | |
|              end;
 | |
| 
 | |
|            ait_symbol_end :
 | |
|              begin
 | |
|                if tf_needs_symbol_size in target_info.flags then
 | |
|                 begin
 | |
|                   s:=target_asm.labelprefix+'e'+tostr(symendcount);
 | |
|                   inc(symendcount);
 | |
|                   AsmWriteLn(s+':');
 | |
|                   AsmWrite(#9'.size'#9);
 | |
|                   if (target_info.system = system_powerpc64_linux) and (tai_symbol_end(hp).sym.typ = AT_FUNCTION) then
 | |
|                     begin
 | |
|                       AsmWrite('.');
 | |
|                     end;
 | |
|                   AsmWrite(tai_symbol_end(hp).sym.name);
 | |
|                   AsmWrite(', '+s+' - ');
 | |
|                   if (target_info.system = system_powerpc64_linux) and (tai_symbol_end(hp).sym.typ = AT_FUNCTION) then
 | |
|                     begin
 | |
|                       AsmWrite('.');
 | |
|                     end;
 | |
|                   AsmWriteLn(tai_symbol_end(hp).sym.name);
 | |
|                 end;
 | |
|              end;
 | |
| 
 | |
|            ait_instruction :
 | |
|              begin
 | |
|                WriteInstruction(hp);
 | |
|              end;
 | |
| 
 | |
|            ait_stab :
 | |
|              begin
 | |
|                if assigned(tai_stab(hp).str) then
 | |
|                  begin
 | |
|                    AsmWrite(#9'.'+stabtypestr[tai_stab(hp).stabtype]+' ');
 | |
|                    AsmWritePChar(tai_stab(hp).str);
 | |
|                    AsmLn;
 | |
|                  end;
 | |
|              end;
 | |
| 
 | |
|            ait_force_line,
 | |
|            ait_function_name : ;
 | |
| 
 | |
|            ait_cutobject :
 | |
|              begin
 | |
|                if SmartAsm then
 | |
|                 begin
 | |
|                 { only reset buffer if nothing has changed }
 | |
|                   if AsmSize=AsmStartSize then
 | |
|                    AsmClear
 | |
|                   else
 | |
|                    begin
 | |
|                      AsmClose;
 | |
|                      DoAssemble;
 | |
|                      AsmCreate(tai_cutobject(hp).place);
 | |
|                    end;
 | |
|                 { avoid empty files }
 | |
|                   while assigned(hp.next) and (tai(hp.next).typ in [ait_cutobject,ait_section,ait_comment]) do
 | |
|                    begin
 | |
|                      if tai(hp.next).typ=ait_section then
 | |
|                        CurrSecType:=tai_section(hp.next).sectype;
 | |
|                      hp:=tai(hp.next);
 | |
|                    end;
 | |
|                   if CurrSecType<>sec_none then
 | |
|                     WriteSection(CurrSecType,'');
 | |
|                   AsmStartSize:=AsmSize;
 | |
|                 end;
 | |
|              end;
 | |
| 
 | |
|            ait_marker :
 | |
|              if tai_marker(hp).kind=InlineStart then
 | |
|                inc(InlineLevel)
 | |
|              else if tai_marker(hp).kind=InlineEnd then
 | |
|                dec(InlineLevel);
 | |
| 
 | |
|            ait_directive :
 | |
|              begin
 | |
|                AsmWrite('.'+directivestr[tai_directive(hp).directive]+' ');
 | |
|                if assigned(tai_directive(hp).name) then
 | |
|                  AsmWrite(tai_directive(hp).name^);
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            else
 | |
|              internalerror(10000);
 | |
|          end;
 | |
|          hp:=tai(hp.next);
 | |
|        end;
 | |
|     end;
 | |
| 
 | |
| 
 | |
|     procedure TGNUAssembler.WriteExtraHeader;
 | |
| 
 | |
|       begin
 | |
|       end;
 | |
| 
 | |
|     procedure TGNUAssembler.WriteAsmList;
 | |
|     var
 | |
|       p:dirstr;
 | |
|       n:namestr;
 | |
|       e:extstr;
 | |
|       hal : tasmlist;
 | |
|     begin
 | |
| {$ifdef EXTDEBUG}
 | |
|       if assigned(current_module.mainsource) then
 | |
|        Comment(V_Debug,'Start writing gas-styled assembler output for '+current_module.mainsource^);
 | |
| {$endif}
 | |
| 
 | |
|       CurrSecType:=sec_none;
 | |
|       FillChar(lastfileinfo,sizeof(lastfileinfo),0);
 | |
|       LastInfile:=nil;
 | |
| 
 | |
|       if assigned(current_module.mainsource) then
 | |
| {$IFDEF USE_SYSUTILS}
 | |
|       begin
 | |
|        p := SplitPath(current_module.mainsource^);
 | |
|        n := SplitName(current_module.mainsource^);
 | |
|        e := SplitExtension(current_module.mainsource^);
 | |
|       end
 | |
| {$ELSE USE_SYSUTILS}
 | |
|        fsplit(current_module.mainsource^,p,n,e)
 | |
| {$ENDIF USE_SYSUTILS}
 | |
|       else
 | |
|        begin
 | |
|          p:=inputdir;
 | |
|          n:=inputfile;
 | |
|          e:=inputextension;
 | |
|        end;
 | |
|     { to get symify to work }
 | |
|       AsmWriteLn(#9'.file "'+FixFileName(n+e)+'"');
 | |
|       WriteExtraHeader;
 | |
|       AsmStartSize:=AsmSize;
 | |
|       symendcount:=0;
 | |
| 
 | |
|       for hal:=low(Tasmlist) to high(Tasmlist) do
 | |
|         begin
 | |
|           AsmWriteLn(target_asm.comment+'Begin asmlist '+TasmlistStr[hal]);
 | |
|           writetree(asmlist[hal]);
 | |
|           AsmWriteLn(target_asm.comment+'End asmlist '+TasmlistStr[hal]);
 | |
|         end;
 | |
| 
 | |
|       AsmLn;
 | |
| {$ifdef EXTDEBUG}
 | |
|       if assigned(current_module.mainsource) then
 | |
|        Comment(V_Debug,'Done writing gas-styled assembler output for '+current_module.mainsource^);
 | |
| {$endif EXTDEBUG}
 | |
|     end;
 | |
| 
 | |
| end.
 |