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https://gitlab.com/freepascal.org/fpc/source.git
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1007 lines
32 KiB
ObjectPascal
1007 lines
32 KiB
ObjectPascal
{
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Copyright (c) 1998-2004 by the Free Pascal team
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This unit implements generic GNU assembler (v2.8 or later)
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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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{ Base unit for writing GNU assembler output.
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}
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unit aggas;
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{$i fpcdefs.inc}
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interface
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uses
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{$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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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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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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{$ifdef GDB}
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procedure WriteFileLineInfo(var fileinfo : tfileposinfo);
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procedure WriteFileEndInfo;
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{$endif}
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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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const
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regname_count=45;
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regname_count_bsstart=32; { Largest power of 2 out of regname_count. }
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implementation
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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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{$ifdef GDB}
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{$IFDEF USE_SYSUTILS}
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{$ELSE USE_SYSUTILS}
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,strings
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{$ENDIF USE_SYSUTILS}
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,gdb
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{$endif GDB}
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;
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const
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line_length = 70;
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var
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{$ifdef GDB}
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n_line : byte; { different types of source lines }
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linecount,
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includecount : longint;
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funcname : pchar;
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stabslastfileinfo : tfileposinfo;
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{$endif}
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lasTSecType : TAsmSectionType; { last section type written }
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lastfileinfo : tfileposinfo;
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infile,
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lastinfile : tinputfile;
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symendcount : longint;
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type
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{$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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{ Support routines }
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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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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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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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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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{ 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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b := t[6];
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t[6] := t[1];
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t[1] := b;
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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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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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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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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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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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{ GNU Assembler writer }
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{****************************************************************************}
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{$ifdef GDB}
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procedure TGNUAssembler.WriteFileLineInfo(var fileinfo : tfileposinfo);
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var
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curr_n : byte;
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begin
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if not ((cs_debuginfo in aktmoduleswitches) or
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(cs_gdb_lineinfo in aktglobalswitches)) then
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exit;
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{ file changed ? (must be before line info) }
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if (fileinfo.fileindex<>0) and
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(stabslastfileinfo.fileindex<>fileinfo.fileindex) then
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begin
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infile:=current_module.sourcefiles.get_file(fileinfo.fileindex);
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if assigned(infile) then
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begin
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if includecount=0 then
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curr_n:=n_sourcefile
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else
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curr_n:=n_includefile;
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if (infile.path^<>'') then
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begin
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AsmWriteLn(#9'.stabs "'+BsToSlash(FixPath(infile.path^,false))+'",'+
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tostr(curr_n)+',0,0,'+target_asm.labelprefix+'text'+ToStr(IncludeCount));
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end;
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AsmWriteLn(#9'.stabs "'+FixFileName(infile.name^)+'",'+
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tostr(curr_n)+',0,0,'+target_asm.labelprefix+'text'+ToStr(IncludeCount));
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AsmWriteLn(target_asm.labelprefix+'text'+ToStr(IncludeCount)+':');
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inc(includecount);
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{ force new line info }
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stabslastfileinfo.line:=-1;
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end;
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end;
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{ line changed ? }
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if (stabslastfileinfo.line<>fileinfo.line) and (fileinfo.line<>0) then
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begin
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if (n_line=n_textline) and assigned(funcname) and
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(target_info.use_function_relative_addresses) then
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begin
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AsmWriteLn(target_asm.labelprefix+'l'+tostr(linecount)+':');
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AsmWrite(#9'.stabn '+tostr(n_line)+',0,'+tostr(fileinfo.line)+','+
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target_asm.labelprefix+'l'+tostr(linecount)+' - ');
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AsmWritePChar(FuncName);
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AsmLn;
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inc(linecount);
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end
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else
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AsmWriteLn(#9'.stabd'#9+tostr(n_line)+',0,'+tostr(fileinfo.line));
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end;
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stabslastfileinfo:=fileinfo;
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end;
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procedure TGNUAssembler.WriteFileEndInfo;
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begin
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if not ((cs_debuginfo in aktmoduleswitches) or
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(cs_gdb_lineinfo in aktglobalswitches)) then
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exit;
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WriteSection(sec_code,'');
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AsmWriteLn(#9'.stabs "",'+tostr(n_sourcefile)+',0,0,'+target_asm.labelprefix+'etext');
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AsmWriteLn(target_asm.labelprefix+'etext:');
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end;
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{$endif GDB}
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function TGNUAssembler.sectionname(atype:tasmsectiontype;const aname:string):string;
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const
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secnames : array[tasmsectiontype] of string[12] = ('',
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{$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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'.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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not (atype in [sec_bss,sec_threadvar]) and
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(aname<>'') then
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result:='.gnu.linkonce'+copy(secnames[atype],1,2)+'.'+aname
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else
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result:=secnames[atype];
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end;
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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_powerpc_darwin, system_i386_OS2, system_i386_EMX: ;
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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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if copy(s,1,4)='.gnu' then
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begin
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case atype of
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sec_rodata,
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sec_data :
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AsmWrite(',""');
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sec_code :
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AsmWrite(',"x"');
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end;
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end
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else if atype=sec_fpc then
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AsmWrite(', "a", @progbits');
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AsmLn;
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{$ifdef GDB}
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{ this is needed for line info in data }
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funcname:=nil;
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case atype of
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sec_code :
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n_line:=n_textline;
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sec_rodata,
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sec_data :
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n_line:=n_dataline;
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sec_bss :
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n_line:=n_bssline;
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else
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n_line:=n_dataline;
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end;
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{$endif GDB}
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LasTSecType:=atype;
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end;
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procedure TGNUAssembler.WriteTree(p:TAAsmoutput);
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const
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regallocstr : array[tregalloctype] of string[10]=(' allocated',' released',' sync',' resized');
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tempallocstr : array[boolean] of string[10]=(' released',' allocated');
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var
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ch : char;
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hp : tai;
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hp1 : tailineinfo;
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consttyp : taitype;
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s : string;
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i,pos,l : longint;
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InlineLevel : longint;
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last_align : longint;
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co : comp;
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sin : single;
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d : double;
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{$ifdef cpuextended}
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e : extended;
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{$endif cpuextended}
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do_line : boolean;
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begin
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if not assigned(p) then
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exit;
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last_align := 2;
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InlineLevel:=0;
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{ lineinfo is only needed for al_code (PFV) }
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do_line:=(cs_asm_source in aktglobalswitches) or
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((cs_lineinfo in aktmoduleswitches)
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and (p=asmlist[al_code]));
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hp:=tai(p.first);
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while assigned(hp) do
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begin
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if not(hp.typ in SkipLineInfo) then
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begin
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hp1 := hp as tailineinfo;
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aktfilepos:=hp1.fileinfo;
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{$ifdef GDB}
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{ write stabs }
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if (cs_debuginfo in aktmoduleswitches) or
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(cs_gdb_lineinfo in aktglobalswitches) then
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WriteFileLineInfo(hp1.fileinfo);
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{$endif GDB}
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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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case hp.typ of
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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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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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AsmWriteLn(regallocstr[tai_regalloc(hp).ratype]);
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end;
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end;
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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]);
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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));
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if tai_align(hp).use_op then
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AsmWrite(','+tostr(tai_align(hp).fillop))
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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;
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end;
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end;
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ait_section :
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begin
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if tai_section(hp).sectype<>sec_none then
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begin
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WriteSection(tai_section(hp).sectype,tai_section(hp).name^);
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{$ifdef GDB}
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lastfileinfo.line:=-1;
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{$endif GDB}
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end
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else
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begin
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{$ifdef EXTDEBUG}
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AsmWrite(target_asm.comment);
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AsmWriteln(' sec_none');
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{$endif EXTDEBUG}
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end;
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end;
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ait_datablock :
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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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{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
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this doesn't work on Mac OS X as well.}
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if tai_datablock(hp).is_global then
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begin
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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(lastSectype in [sec_data,sec_none]) then
|
|
writesection(lastSectype,'');
|
|
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,
|
|
{$endif cpu64bit}
|
|
ait_const_32bit,
|
|
ait_const_16bit,
|
|
ait_const_8bit,
|
|
ait_const_rva_symbol,
|
|
ait_const_indirect_symbol :
|
|
begin
|
|
AsmWrite(ait_const2str[hp.typ]);
|
|
consttyp:=hp.typ;
|
|
l:=0;
|
|
repeat
|
|
if assigned(tai_const(hp).sym) then
|
|
begin
|
|
if assigned(tai_const(hp).endsym) then
|
|
s:=tai_const(hp).endsym.name+'-'+tai_const(hp).sym.name
|
|
else
|
|
s:=tai_const(hp).sym.name;
|
|
if tai_const(hp).value<>0 then
|
|
s:=s+tostr_with_plus(tai_const(hp).value);
|
|
end
|
|
else
|
|
s:=tostr(tai_const(hp).value);
|
|
AsmWrite(s);
|
|
inc(l,length(s));
|
|
{ Values with symbols are written on a single line to improve
|
|
reading of the .s file (PFV) }
|
|
if assigned(tai_const(hp).sym) or
|
|
not(LasTSecType in [sec_data,sec_rodata]) or
|
|
(l>line_length) or
|
|
(hp.next=nil) or
|
|
(tai(hp.next).typ<>consttyp) or
|
|
assigned(tai_const(hp.next).sym) then
|
|
break;
|
|
hp:=tai(hp.next);
|
|
AsmWrite(',');
|
|
until false;
|
|
AsmLn;
|
|
end;
|
|
|
|
{$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_direct :
|
|
begin
|
|
AsmWritePChar(tai_direct(hp).str);
|
|
AsmLn;
|
|
{$IfDef GDB}
|
|
if strpos(tai_direct(hp).str,'.data')<>nil then
|
|
n_line:=n_dataline
|
|
else if strpos(tai_direct(hp).str,'.text')<>nil then
|
|
n_line:=n_textline
|
|
else if strpos(tai_direct(hp).str,'.bss')<>nil then
|
|
n_line:=n_bssline;
|
|
{$endif GDB}
|
|
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 in [system_i386_linux,system_i386_beos,
|
|
system_powerpc_linux,system_m68k_linux,
|
|
system_sparc_linux,system_alpha_linux,
|
|
system_x86_64_linux,system_arm_linux] then
|
|
begin
|
|
AsmWrite(#9'.type'#9);
|
|
AsmWrite(tai_symbol(hp).sym.name);
|
|
if assigned(tai(hp.next)) and
|
|
(tai(hp.next).typ in [ait_const_rva_symbol,
|
|
ait_const_32bit,ait_const_16bit,ait_const_8bit,ait_datablock,
|
|
ait_real_32bit,ait_real_64bit,ait_real_80bit,ait_comp_64bit]) then
|
|
begin
|
|
if target_info.system = system_arm_linux then
|
|
AsmWriteLn(',#object')
|
|
else
|
|
AsmWriteLn(',@object')
|
|
end
|
|
else
|
|
begin
|
|
if target_info.system = system_arm_linux then
|
|
AsmWriteLn(',#function')
|
|
else
|
|
AsmWriteLn(',@function');
|
|
end;
|
|
if tai_symbol(hp).sym.size>0 then
|
|
begin
|
|
AsmWrite(#9'.size'#9);
|
|
AsmWrite(tai_symbol(hp).sym.name);
|
|
AsmWrite(', ');
|
|
AsmWriteLn(tostr(tai_symbol(hp).sym.size));
|
|
end;
|
|
end;
|
|
AsmWrite(tai_symbol(hp).sym.name);
|
|
AsmWriteLn(':');
|
|
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);
|
|
AsmWrite(tai_symbol_end(hp).sym.name);
|
|
AsmWrite(', '+s+' - ');
|
|
AsmWriteLn(tai_symbol_end(hp).sym.name);
|
|
end;
|
|
end;
|
|
|
|
ait_instruction :
|
|
begin
|
|
WriteInstruction(hp);
|
|
end;
|
|
|
|
{$ifdef GDB}
|
|
ait_stabs :
|
|
begin
|
|
if assigned(tai_stabs(hp).str) then
|
|
begin
|
|
AsmWrite(#9'.stabs ');
|
|
AsmWritePChar(tai_stabs(hp).str);
|
|
AsmLn;
|
|
end;
|
|
end;
|
|
|
|
ait_stabn :
|
|
begin
|
|
if assigned(tai_stabn(hp).str) then
|
|
begin
|
|
AsmWrite(#9'.stabn ');
|
|
AsmWritePChar(tai_stabn(hp).str);
|
|
AsmLn;
|
|
end;
|
|
end;
|
|
|
|
ait_force_line :
|
|
stabslastfileinfo.line:=0;
|
|
|
|
ait_stab_function_name:
|
|
funcname:=tai_stab_function_name(hp).str;
|
|
{$endif GDB}
|
|
|
|
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
|
|
lasTSectype:=tai_section(hp.next).sectype;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
{$ifdef GDB}
|
|
{ force write of filename }
|
|
FillChar(stabslastfileinfo,sizeof(stabslastfileinfo),0);
|
|
includecount:=0;
|
|
funcname:=nil;
|
|
WriteFileLineInfo(aktfilepos);
|
|
{$endif GDB}
|
|
if lasTSectype<>sec_none then
|
|
WriteSection(lasTSectype,'');
|
|
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_non_lazy_symbol_pointer:
|
|
AsmWriteLn('.non_lazy_symbol_pointer');
|
|
|
|
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;
|
|
{$ifdef GDB}
|
|
fileinfo : tfileposinfo;
|
|
{$endif GDB}
|
|
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}
|
|
|
|
LasTSectype:=sec_none;
|
|
{$ifdef GDB}
|
|
FillChar(stabslastfileinfo,sizeof(stabslastfileinfo),0);
|
|
{$endif GDB}
|
|
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)
|
|
{$ENDIF USE_SYSUTILS}
|
|
else
|
|
begin
|
|
p:=inputdir;
|
|
n:=inputfile;
|
|
e:=inputextension;
|
|
end;
|
|
{ to get symify to work }
|
|
AsmWriteLn(#9'.file "'+FixFileName(n+e)+'"');
|
|
WriteExtraHeader;
|
|
{$ifdef GDB}
|
|
n_line:=n_bssline;
|
|
funcname:=nil;
|
|
linecount:=1;
|
|
includecount:=0;
|
|
fileinfo.fileindex:=1;
|
|
fileinfo.line:=1;
|
|
{ Write main file }
|
|
WriteFileLineInfo(fileinfo);
|
|
{$endif GDB}
|
|
AsmStartSize:=AsmSize;
|
|
symendcount:=0;
|
|
|
|
for hal:=low(Tasmlist) to high(Tasmlist) do
|
|
begin
|
|
AsmWriteLn(target_asm.comment+'Begin asmlist '+TasmlistStr[hal]);
|
|
writetree(asmlist[hal]);
|
|
AsmWriteLn(target_asm.comment+'End asmlist '+TasmlistStr[hal]);
|
|
end;
|
|
|
|
{$ifdef GDB}
|
|
WriteFileEndInfo;
|
|
{$ENDIF}
|
|
|
|
AsmLn;
|
|
{$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.
|