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1659 lines
52 KiB
ObjectPascal
1659 lines
52 KiB
ObjectPascal
{
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Copyright (c) 1998-2004 by Peter Vreman
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This unit handles the assemblerfile write and assembler calls of FPC
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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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{# @abstract(This unit handles the assembler file write and assembler calls of FPC)
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Handles the calls to the actual external assemblers, as well as the generation
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of object files for smart linking. Also contains the base class for writing
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the assembler statements to file.
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}
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unit assemble;
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{$i fpcdefs.inc}
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interface
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uses
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SysUtils,
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systems,globtype,globals,aasmbase,aasmtai,aasmdata,ogbase,finput;
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const
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{ maximum of aasmoutput lists there will be }
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maxoutputlists = ord(high(tasmlisttype))+1;
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{ buffer size for writing the .s file }
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AsmOutSize=32768*4;
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type
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TAssembler=class(TAbstractAssembler)
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public
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{filenames}
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path : string;
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name : string;
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AsmFileName, { current .s and .o file }
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ObjFileName,
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ppufilename : string;
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asmprefix : string;
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SmartAsm : boolean;
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SmartFilesCount,
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SmartHeaderCount : longint;
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Constructor Create(smart:boolean);virtual;
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Destructor Destroy;override;
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procedure NextSmartName(place:tcutplace);
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procedure MakeObject;virtual;abstract;
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end;
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{# This is the base class which should be overridden for each each
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assembler writer. It is used to actually assembler a file,
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and write the output to the assembler file.
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}
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TExternalAssembler=class(TAssembler)
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private
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procedure CreateSmartLinkPath(const s:string);
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protected
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{outfile}
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AsmSize,
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AsmStartSize,
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outcnt : longint;
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outbuf : array[0..AsmOutSize-1] of char;
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outfile : file;
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ioerror : boolean;
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{input source info}
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lastfileinfo : tfileposinfo;
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infile,
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lastinfile : tinputfile;
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{last section type written}
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lastsectype : TAsmSectionType;
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procedure WriteSourceLine(hp: tailineinfo);
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procedure WriteTempalloc(hp: tai_tempalloc);
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public
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{# Returns the complete path and executable name of the assembler
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program.
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It first tries looking in the UTIL directory if specified,
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otherwise it searches in the free pascal binary directory, in
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the current working directory and then in the directories
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in the $PATH environment.}
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Function FindAssembler:string;
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{# Actually does the call to the assembler file. Returns false
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if the assembling of the file failed.}
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Function CallAssembler(const command:string; const para:TCmdStr):Boolean;
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Function DoAssemble:boolean;virtual;
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Procedure RemoveAsm;
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Procedure AsmFlush;
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Procedure AsmClear;
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{# Write a string to the assembler file }
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Procedure AsmWrite(const s:string);
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{# Write a string to the assembler file }
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Procedure AsmWritePChar(p:pchar);
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{# Write a string to the assembler file followed by a new line }
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Procedure AsmWriteLn(const s:string);
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{# Write a new line to the assembler file }
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Procedure AsmLn;
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procedure AsmCreate(Aplace:tcutplace);
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procedure AsmClose;
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{# This routine should be overridden for each assembler, it is used
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to actually write the abstract assembler stream to file.}
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procedure WriteTree(p:TAsmList);virtual;
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{# This routine should be overridden for each assembler, it is used
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to actually write all the different abstract assembler streams
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by calling for each stream type, the @var(WriteTree) method.}
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procedure WriteAsmList;virtual;
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{# Constructs the command line for calling the assembler }
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function MakeCmdLine: TCmdStr; virtual;
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public
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Constructor Create(smart:boolean);override;
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procedure MakeObject;override;
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end;
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{ TInternalAssembler }
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TInternalAssembler=class(TAssembler)
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private
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FCObjOutput : TObjOutputclass;
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{ the aasmoutput lists that need to be processed }
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lists : byte;
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list : array[1..maxoutputlists] of TAsmList;
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{ current processing }
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currlistidx : byte;
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currlist : TAsmList;
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procedure WriteStab(p:pchar);
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function MaybeNextList(var hp:Tai):boolean;
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function SetIndirectToSymbol(hp: Tai; const indirectname: string): Boolean;
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function TreePass0(hp:Tai):Tai;
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function TreePass1(hp:Tai):Tai;
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function TreePass2(hp:Tai):Tai;
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procedure writetree;
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procedure writetreesmart;
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protected
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ObjData : TObjData;
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ObjOutput : tObjOutput;
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property CObjOutput:TObjOutputclass read FCObjOutput write FCObjOutput;
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public
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constructor create(smart:boolean);override;
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destructor destroy;override;
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procedure MakeObject;override;
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end;
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TAssemblerClass = class of TAssembler;
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Procedure GenerateAsm(smart:boolean);
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Procedure OnlyAsm;
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procedure RegisterAssembler(const r:tasminfo;c:TAssemblerClass);
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Implementation
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uses
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{$ifdef hasunix}
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unix,
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{$endif}
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cutils,cfileutl,
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{$ifdef memdebug}
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cclasses,
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{$endif memdebug}
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script,fmodule,verbose,
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{$if defined(m68k) or defined(arm)}
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cpuinfo,
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{$endif m68k or arm}
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aasmcpu,
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owbase,owar
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;
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var
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CAssembler : array[tasm] of TAssemblerClass;
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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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TAssembler
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*****************************************************************************}
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Constructor TAssembler.Create(smart:boolean);
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begin
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{ load start values }
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AsmFileName:=current_module.AsmFilename^;
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ObjFileName:=current_module.ObjFileName^;
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name:=Lower(current_module.modulename^);
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path:=current_module.outputpath^;
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asmprefix := current_module.asmprefix^;
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if not assigned(current_module.outputpath) then
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ppufilename := ''
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else
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ppufilename := current_module.ppufilename^;
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SmartAsm:=smart;
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SmartFilesCount:=0;
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SmartHeaderCount:=0;
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SmartLinkOFiles.Clear;
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end;
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Destructor TAssembler.Destroy;
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begin
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end;
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procedure TAssembler.NextSmartName(place:tcutplace);
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var
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s : string;
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begin
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inc(SmartFilesCount);
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if SmartFilesCount>999999 then
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Message(asmw_f_too_many_asm_files);
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case place of
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cut_begin :
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begin
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inc(SmartHeaderCount);
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s:=asmprefix+tostr(SmartHeaderCount)+'h';
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end;
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cut_normal :
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s:=asmprefix+tostr(SmartHeaderCount)+'s';
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cut_end :
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s:=asmprefix+tostr(SmartHeaderCount)+'t';
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end;
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AsmFileName:=Path+FixFileName(s+tostr(SmartFilesCount)+target_info.asmext);
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ObjFileName:=Path+FixFileName(s+tostr(SmartFilesCount)+target_info.objext);
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{ insert in container so it can be cleared after the linking }
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SmartLinkOFiles.Insert(ObjFileName);
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end;
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{*****************************************************************************
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TExternalAssembler
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*****************************************************************************}
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Function DoPipe:boolean;
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begin
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DoPipe:=(cs_asm_pipe in current_settings.globalswitches) and
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(([cs_asm_extern,cs_asm_leave,cs_link_on_target] * current_settings.globalswitches) = []) and
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((target_asm.id in [as_gas,as_ggas,as_darwin]));
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end;
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Constructor TExternalAssembler.Create(smart:boolean);
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begin
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inherited Create(smart);
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if SmartAsm then
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begin
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path:=FixPath(ChangeFileExt(AsmFileName,target_info.smartext),false);
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CreateSmartLinkPath(path);
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end;
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Outcnt:=0;
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end;
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procedure TExternalAssembler.CreateSmartLinkPath(const s:string);
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procedure DeleteFilesWithExt(const AExt:string);
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var
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dir : TSearchRec;
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begin
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if findfirst(s+source_info.dirsep+'*'+AExt,faAnyFile,dir) = 0 then
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begin
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repeat
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DeleteFile(s+source_info.dirsep+dir.name);
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until findnext(dir) <> 0;
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end;
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findclose(dir);
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end;
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var
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hs : string;
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begin
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if PathExists(s,false) then
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begin
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{ the path exists, now we clean only all the .o and .s files }
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DeleteFilesWithExt(target_info.objext);
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DeleteFilesWithExt(target_info.asmext);
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end
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else
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begin
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hs:=s;
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if hs[length(hs)] in ['/','\'] then
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delete(hs,length(hs),1);
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{$I-}
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mkdir(hs);
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{$I+}
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if ioresult<>0 then;
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end;
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end;
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const
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lastas : byte=255;
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var
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LastASBin : TCmdStr;
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Function TExternalAssembler.FindAssembler:string;
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var
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asfound : boolean;
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UtilExe : string;
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begin
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asfound:=false;
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if cs_link_on_target in current_settings.globalswitches then
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begin
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{ If linking on target, don't add any path PM }
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FindAssembler:=utilsprefix+ChangeFileExt(target_asm.asmbin,target_info.exeext);
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exit;
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end
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else
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UtilExe:=utilsprefix+ChangeFileExt(target_asm.asmbin,source_info.exeext);
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if lastas<>ord(target_asm.id) then
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begin
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lastas:=ord(target_asm.id);
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{ is an assembler passed ? }
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if utilsdirectory<>'' then
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asfound:=FindFile(UtilExe,utilsdirectory,false,LastASBin);
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if not AsFound then
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asfound:=FindExe(UtilExe,false,LastASBin);
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if (not asfound) and not(cs_asm_extern in current_settings.globalswitches) then
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begin
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Message1(exec_e_assembler_not_found,LastASBin);
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current_settings.globalswitches:=current_settings.globalswitches+[cs_asm_extern];
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end;
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if asfound then
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Message1(exec_t_using_assembler,LastASBin);
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end;
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FindAssembler:=LastASBin;
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end;
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Function TExternalAssembler.CallAssembler(const command:string; const para:TCmdStr):Boolean;
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var
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DosExitCode : Integer;
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begin
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result:=true;
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if (cs_asm_extern in current_settings.globalswitches) then
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begin
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AsmRes.AddAsmCommand(command,para,name);
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exit;
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end;
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try
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FlushOutput;
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DosExitCode := ExecuteProcess(command,para);
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if DosExitCode <>0
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then begin
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Message1(exec_e_error_while_assembling,tostr(dosexitcode));
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result:=false;
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end;
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except on E:EOSError do
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begin
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Message1(exec_e_cant_call_assembler,tostr(E.ErrorCode));
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current_settings.globalswitches:=current_settings.globalswitches+[cs_asm_extern];
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result:=false;
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end;
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end;
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end;
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procedure TExternalAssembler.RemoveAsm;
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var
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g : file;
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begin
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if cs_asm_leave in current_settings.globalswitches then
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exit;
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if cs_asm_extern in current_settings.globalswitches then
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AsmRes.AddDeleteCommand(AsmFileName)
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else
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begin
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assign(g,AsmFileName);
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{$I-}
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erase(g);
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{$I+}
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if ioresult<>0 then;
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end;
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end;
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Function TExternalAssembler.DoAssemble:boolean;
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begin
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DoAssemble:=true;
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if DoPipe then
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exit;
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if not(cs_asm_extern in current_settings.globalswitches) then
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begin
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if SmartAsm then
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begin
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if (SmartFilesCount<=1) then
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Message1(exec_i_assembling_smart,name);
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end
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else
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Message1(exec_i_assembling,name);
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end;
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if CallAssembler(FindAssembler,MakeCmdLine) then
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RemoveAsm
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else
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begin
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DoAssemble:=false;
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GenerateError;
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end;
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end;
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Procedure TExternalAssembler.AsmFlush;
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begin
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if outcnt>0 then
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begin
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{ suppress i/o error }
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{$i-}
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BlockWrite(outfile,outbuf,outcnt);
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{$i+}
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ioerror:=ioerror or (ioresult<>0);
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outcnt:=0;
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end;
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end;
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Procedure TExternalAssembler.AsmClear;
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begin
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outcnt:=0;
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end;
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Procedure TExternalAssembler.AsmWrite(const s:string);
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begin
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if OutCnt+length(s)>=AsmOutSize then
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AsmFlush;
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Move(s[1],OutBuf[OutCnt],length(s));
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inc(OutCnt,length(s));
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inc(AsmSize,length(s));
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end;
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Procedure TExternalAssembler.AsmWriteLn(const s:string);
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begin
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AsmWrite(s);
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AsmLn;
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end;
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Procedure TExternalAssembler.AsmWritePChar(p:pchar);
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var
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i,j : longint;
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begin
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i:=StrLen(p);
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j:=i;
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while j>0 do
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begin
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i:=min(j,AsmOutSize);
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if OutCnt+i>=AsmOutSize then
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AsmFlush;
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Move(p[0],OutBuf[OutCnt],i);
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inc(OutCnt,i);
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inc(AsmSize,i);
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dec(j,i);
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p:=pchar(@p[i]);
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end;
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end;
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Procedure TExternalAssembler.AsmLn;
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begin
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if OutCnt>=AsmOutSize-2 then
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AsmFlush;
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if (cs_link_on_target in current_settings.globalswitches) then
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begin
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OutBuf[OutCnt]:=target_info.newline[1];
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inc(OutCnt);
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inc(AsmSize);
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if length(target_info.newline)>1 then
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begin
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OutBuf[OutCnt]:=target_info.newline[2];
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inc(OutCnt);
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inc(AsmSize);
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end;
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end
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else
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begin
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OutBuf[OutCnt]:=source_info.newline[1];
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inc(OutCnt);
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inc(AsmSize);
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if length(source_info.newline)>1 then
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begin
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OutBuf[OutCnt]:=source_info.newline[2];
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inc(OutCnt);
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inc(AsmSize);
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end;
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end;
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end;
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|
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function TExternalAssembler.MakeCmdLine: TCmdStr;
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begin
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result:=target_asm.asmcmd;
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{$ifdef m68k}
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if current_settings.cputype = cpu_MC68020 then
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result:='-m68020 '+result
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else
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result:='-m68000 '+result;
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{$endif}
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{$ifdef arm}
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if (target_info.system=system_arm_darwin) then
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Replace(result,'$ARCH',lower(cputypestr[current_settings.cputype]));
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{$endif arm}
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if (cs_link_on_target in current_settings.globalswitches) then
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begin
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Replace(result,'$ASM',maybequoted(ScriptFixFileName(AsmFileName)));
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Replace(result,'$OBJ',maybequoted(ScriptFixFileName(ObjFileName)));
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end
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else
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begin
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{$ifdef hasunix}
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if DoPipe then
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Replace(result,'$ASM','')
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else
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{$endif}
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Replace(result,'$ASM',maybequoted(AsmFileName));
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Replace(result,'$OBJ',maybequoted(ObjFileName));
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end;
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end;
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|
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procedure TExternalAssembler.AsmCreate(Aplace:tcutplace);
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begin
|
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if SmartAsm then
|
|
NextSmartName(Aplace);
|
|
{$ifdef hasunix}
|
|
if DoPipe then
|
|
begin
|
|
if SmartAsm then
|
|
begin
|
|
if (SmartFilesCount<=1) then
|
|
Message1(exec_i_assembling_smart,name);
|
|
end
|
|
else
|
|
Message1(exec_i_assembling_pipe,AsmFileName);
|
|
POpen(outfile,maybequoted(FindAssembler)+' '+MakeCmdLine,'W');
|
|
end
|
|
else
|
|
{$endif}
|
|
begin
|
|
Assign(outfile,AsmFileName);
|
|
{$I-}
|
|
Rewrite(outfile,1);
|
|
{$I+}
|
|
if ioresult<>0 then
|
|
begin
|
|
ioerror:=true;
|
|
Message1(exec_d_cant_create_asmfile,AsmFileName);
|
|
end;
|
|
end;
|
|
outcnt:=0;
|
|
AsmSize:=0;
|
|
AsmStartSize:=0;
|
|
end;
|
|
|
|
|
|
procedure TExternalAssembler.AsmClose;
|
|
var
|
|
f : file;
|
|
FileAge : longint;
|
|
begin
|
|
AsmFlush;
|
|
{$ifdef hasunix}
|
|
if DoPipe then
|
|
begin
|
|
if PClose(outfile) <> 0 then
|
|
GenerateError;
|
|
end
|
|
else
|
|
{$endif}
|
|
begin
|
|
{Touch Assembler time to ppu time is there is a ppufilename}
|
|
if ppufilename<>'' then
|
|
begin
|
|
Assign(f,ppufilename);
|
|
{$I-}
|
|
reset(f,1);
|
|
{$I+}
|
|
if ioresult=0 then
|
|
begin
|
|
FileAge := FileGetDate(GetFileHandle(f));
|
|
close(f);
|
|
reset(outfile,1);
|
|
FileSetDate(GetFileHandle(outFile),FileAge);
|
|
end;
|
|
end;
|
|
close(outfile);
|
|
end;
|
|
end;
|
|
|
|
procedure TExternalAssembler.WriteSourceLine(hp: tailineinfo);
|
|
begin
|
|
{ load infile }
|
|
if lastfileinfo.fileindex<>hp.fileinfo.fileindex then
|
|
begin
|
|
infile:=current_module.sourcefiles.get_file(hp.fileinfo.fileindex);
|
|
if assigned(infile) then
|
|
begin
|
|
{ open only if needed !! }
|
|
if (cs_asm_source in current_settings.globalswitches) then
|
|
infile.open;
|
|
end;
|
|
{ avoid unnecessary reopens of the same file !! }
|
|
lastfileinfo.fileindex:=hp.fileinfo.fileindex;
|
|
{ be sure to change line !! }
|
|
lastfileinfo.line:=-1;
|
|
end;
|
|
{ write source }
|
|
if (cs_asm_source in current_settings.globalswitches) and
|
|
assigned(infile) then
|
|
begin
|
|
if (infile<>lastinfile) then
|
|
begin
|
|
AsmWriteLn(target_asm.comment+'['+infile.name^+']');
|
|
if assigned(lastinfile) then
|
|
lastinfile.close;
|
|
end;
|
|
if (hp.fileinfo.line<>lastfileinfo.line) and
|
|
(hp.fileinfo.line<infile.maxlinebuf) then
|
|
begin
|
|
if (hp.fileinfo.line<>0) and
|
|
(infile.linebuf^[hp.fileinfo.line]>=0) then
|
|
AsmWriteLn(target_asm.comment+'['+tostr(hp.fileinfo.line)+'] '+
|
|
fixline(infile.GetLineStr(hp.fileinfo.line)));
|
|
{ set it to a negative value !
|
|
to make that is has been read already !! PM }
|
|
if (infile.linebuf^[hp.fileinfo.line]>=0) then
|
|
infile.linebuf^[hp.fileinfo.line]:=-infile.linebuf^[hp.fileinfo.line]-1;
|
|
end;
|
|
end;
|
|
lastfileinfo:=hp.fileinfo;
|
|
lastinfile:=infile;
|
|
end;
|
|
|
|
procedure TExternalAssembler.WriteTempalloc(hp: tai_tempalloc);
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
if assigned(hp.problem) then
|
|
AsmWriteLn(target_asm.comment+'Temp '+tostr(hp.temppos)+','+
|
|
tostr(hp.tempsize)+' '+hp.problem^)
|
|
else
|
|
{$endif EXTDEBUG}
|
|
AsmWriteLn(target_asm.comment+'Temp '+tostr(hp.temppos)+','+
|
|
tostr(hp.tempsize)+' '+tempallocstr[hp.allocation]);
|
|
end;
|
|
|
|
procedure TExternalAssembler.WriteTree(p:TAsmList);
|
|
begin
|
|
end;
|
|
|
|
|
|
procedure TExternalAssembler.WriteAsmList;
|
|
begin
|
|
end;
|
|
|
|
|
|
procedure TExternalAssembler.MakeObject;
|
|
begin
|
|
AsmCreate(cut_normal);
|
|
FillChar(lastfileinfo, sizeof(lastfileinfo), 0);
|
|
lastfileinfo.line := -1;
|
|
lastinfile := nil;
|
|
lastsectype := sec_none;
|
|
WriteAsmList;
|
|
AsmClose;
|
|
if not(ioerror) then
|
|
DoAssemble;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
TInternalAssembler
|
|
*****************************************************************************}
|
|
|
|
constructor TInternalAssembler.create(smart:boolean);
|
|
begin
|
|
inherited create(smart);
|
|
ObjOutput:=nil;
|
|
ObjData:=nil;
|
|
SmartAsm:=smart;
|
|
end;
|
|
|
|
|
|
destructor TInternalAssembler.destroy;
|
|
begin
|
|
if assigned(ObjData) then
|
|
ObjData.free;
|
|
if assigned(ObjOutput) then
|
|
ObjOutput.free;
|
|
end;
|
|
|
|
|
|
procedure TInternalAssembler.WriteStab(p:pchar);
|
|
|
|
function consumecomma(var p:pchar):boolean;
|
|
begin
|
|
while (p^=' ') do
|
|
inc(p);
|
|
result:=(p^=',');
|
|
inc(p);
|
|
end;
|
|
|
|
function consumenumber(var p:pchar;out value:longint):boolean;
|
|
var
|
|
hs : string;
|
|
len,
|
|
code : integer;
|
|
begin
|
|
value:=0;
|
|
while (p^=' ') do
|
|
inc(p);
|
|
len:=0;
|
|
while (p^ in ['0'..'9']) do
|
|
begin
|
|
inc(len);
|
|
hs[len]:=p^;
|
|
inc(p);
|
|
end;
|
|
if len>0 then
|
|
begin
|
|
hs[0]:=chr(len);
|
|
val(hs,value,code);
|
|
end
|
|
else
|
|
code:=-1;
|
|
result:=(code=0);
|
|
end;
|
|
|
|
function consumeoffset(var p:pchar;out relocsym:tobjsymbol;out value:longint):boolean;
|
|
var
|
|
hs : string;
|
|
len,
|
|
code : integer;
|
|
pstart : pchar;
|
|
sym : tobjsymbol;
|
|
exprvalue : longint;
|
|
gotmin,
|
|
have_first_symbol,
|
|
have_second_symbol,
|
|
dosub : boolean;
|
|
begin
|
|
result:=false;
|
|
value:=0;
|
|
relocsym:=nil;
|
|
gotmin:=false;
|
|
have_first_symbol:=false;
|
|
have_second_symbol:=false;
|
|
repeat
|
|
dosub:=false;
|
|
exprvalue:=0;
|
|
if gotmin then
|
|
begin
|
|
dosub:=true;
|
|
gotmin:=false;
|
|
end;
|
|
while (p^=' ') do
|
|
inc(p);
|
|
case p^ of
|
|
#0 :
|
|
break;
|
|
' ' :
|
|
inc(p);
|
|
'0'..'9' :
|
|
begin
|
|
len:=0;
|
|
while (p^ in ['0'..'9']) do
|
|
begin
|
|
inc(len);
|
|
hs[len]:=p^;
|
|
inc(p);
|
|
end;
|
|
hs[0]:=chr(len);
|
|
val(hs,exprvalue,code);
|
|
if code<>0 then
|
|
internalerror(200702251);
|
|
end;
|
|
'.','_',
|
|
'A'..'Z',
|
|
'a'..'z' :
|
|
begin
|
|
pstart:=p;
|
|
while not(p^ in [#0,' ','-','+']) do
|
|
inc(p);
|
|
len:=p-pstart;
|
|
if len>255 then
|
|
internalerror(200509187);
|
|
move(pstart^,hs[1],len);
|
|
hs[0]:=chr(len);
|
|
sym:=objdata.symbolref(hs);
|
|
have_first_symbol:=true;
|
|
{ Second symbol? }
|
|
if assigned(relocsym) then
|
|
begin
|
|
if have_second_symbol then
|
|
internalerror(2007032201);
|
|
have_second_symbol:=true;
|
|
if not have_first_symbol then
|
|
internalerror(2007032202);
|
|
{ second symbol should substracted to first }
|
|
if not dosub then
|
|
internalerror(2007032203);
|
|
if (relocsym.objsection<>sym.objsection) then
|
|
internalerror(2005091810);
|
|
exprvalue:=relocsym.address-sym.address;
|
|
relocsym:=nil;
|
|
dosub:=false;
|
|
end
|
|
else
|
|
begin
|
|
relocsym:=sym;
|
|
if assigned(sym.objsection) then
|
|
begin
|
|
{ first symbol should be + }
|
|
if not have_first_symbol and dosub then
|
|
internalerror(2007032204);
|
|
have_first_symbol:=true;
|
|
end;
|
|
end;
|
|
end;
|
|
'+' :
|
|
begin
|
|
{ nothing, by default addition is done }
|
|
inc(p);
|
|
end;
|
|
'-' :
|
|
begin
|
|
gotmin:=true;
|
|
inc(p);
|
|
end;
|
|
else
|
|
internalerror(200509189);
|
|
end;
|
|
if dosub then
|
|
dec(value,exprvalue)
|
|
else
|
|
inc(value,exprvalue);
|
|
until false;
|
|
result:=true;
|
|
end;
|
|
|
|
var
|
|
stabstrlen,
|
|
ofs,
|
|
nline,
|
|
nidx,
|
|
nother,
|
|
i : longint;
|
|
stab : TObjStabEntry;
|
|
relocsym : TObjSymbol;
|
|
pstr,
|
|
pcurr,
|
|
pendquote : pchar;
|
|
oldsec : TObjSection;
|
|
begin
|
|
pcurr:=nil;
|
|
pstr:=nil;
|
|
pendquote:=nil;
|
|
relocsym:=nil;
|
|
ofs:=0;
|
|
|
|
{ Parse string part }
|
|
if (p[0]='"') then
|
|
begin
|
|
pstr:=@p[1];
|
|
{ Ignore \" inside the string }
|
|
i:=1;
|
|
while not((p[i]='"') and (p[i-1]<>'\')) and
|
|
(p[i]<>#0) do
|
|
inc(i);
|
|
pendquote:=@p[i];
|
|
pendquote^:=#0;
|
|
pcurr:=@p[i+1];
|
|
if not consumecomma(pcurr) then
|
|
internalerror(200509181);
|
|
end
|
|
else
|
|
pcurr:=p;
|
|
|
|
{ When in pass 1 then only alloc and leave }
|
|
if ObjData.currpass=1 then
|
|
begin
|
|
ObjData.StabsSec.Alloc(sizeof(TObjStabEntry));
|
|
if assigned(pstr) and (pstr[0]<>#0) then
|
|
ObjData.StabStrSec.Alloc(strlen(pstr)+1);
|
|
end
|
|
else
|
|
begin
|
|
{ Stabs format: nidx,nother,nline[,offset] }
|
|
if not consumenumber(pcurr,nidx) then
|
|
internalerror(200509182);
|
|
if not consumecomma(pcurr) then
|
|
internalerror(200509183);
|
|
if not consumenumber(pcurr,nother) then
|
|
internalerror(200509184);
|
|
if not consumecomma(pcurr) then
|
|
internalerror(200509185);
|
|
if not consumenumber(pcurr,nline) then
|
|
internalerror(200509186);
|
|
if consumecomma(pcurr) then
|
|
consumeoffset(pcurr,relocsym,ofs);
|
|
|
|
{ Generate stab entry }
|
|
if assigned(pstr) and (pstr[0]<>#0) then
|
|
begin
|
|
stabstrlen:=strlen(pstr);
|
|
{$ifdef optimizestabs}
|
|
StabStrEntry:=nil;
|
|
if (nidx=N_SourceFile) or (nidx=N_IncludeFile) then
|
|
begin
|
|
hs:=strpas(pstr);
|
|
StabstrEntry:=StabStrDict.Find(hs);
|
|
if not assigned(StabstrEntry) then
|
|
begin
|
|
StabstrEntry:=TStabStrEntry.Create(hs);
|
|
StabstrEntry:=StabStrSec.Size;
|
|
StabStrDict.Insert(StabstrEntry);
|
|
{ generate new stab }
|
|
StabstrEntry:=nil;
|
|
end;
|
|
end;
|
|
if assigned(StabstrEntry) then
|
|
stab.strpos:=StabstrEntry.strpos
|
|
else
|
|
{$endif optimizestabs}
|
|
begin
|
|
stab.strpos:=ObjData.StabStrSec.Size;
|
|
ObjData.StabStrSec.write(pstr^,stabstrlen+1);
|
|
end;
|
|
end
|
|
else
|
|
stab.strpos:=0;
|
|
stab.ntype:=byte(nidx);
|
|
stab.ndesc:=word(nline);
|
|
stab.nother:=byte(nother);
|
|
stab.nvalue:=ofs;
|
|
|
|
{ Write the stab first without the value field. Then
|
|
write a the value field with relocation }
|
|
oldsec:=ObjData.CurrObjSec;
|
|
ObjData.SetSection(ObjData.StabsSec);
|
|
ObjData.Writebytes(stab,sizeof(TObjStabEntry)-4);
|
|
ObjData.Writereloc(stab.nvalue,4,relocsym,RELOC_ABSOLUTE32);
|
|
ObjData.setsection(oldsec);
|
|
end;
|
|
if assigned(pendquote) then
|
|
pendquote^:='"';
|
|
end;
|
|
|
|
|
|
function TInternalAssembler.MaybeNextList(var hp:Tai):boolean;
|
|
begin
|
|
{ maybe end of list }
|
|
while not assigned(hp) do
|
|
begin
|
|
if currlistidx<lists then
|
|
begin
|
|
inc(currlistidx);
|
|
currlist:=list[currlistidx];
|
|
hp:=Tai(currList.first);
|
|
end
|
|
else
|
|
begin
|
|
MaybeNextList:=false;
|
|
exit;
|
|
end;
|
|
end;
|
|
MaybeNextList:=true;
|
|
end;
|
|
|
|
|
|
function TInternalAssembler.SetIndirectToSymbol(hp: Tai; const indirectname: string): Boolean;
|
|
var
|
|
objsym : TObjSymbol;
|
|
indsym : TObjSymbol;
|
|
begin
|
|
Result:=
|
|
Assigned(hp) and
|
|
(hp.typ=ait_symbol);
|
|
if not Result then
|
|
Exit;
|
|
objsym:=Objdata.SymbolRef(tai_symbol(hp).sym);
|
|
objsym.size:=0;
|
|
|
|
indsym := TObjSymbol(ObjData.ObjSymbolList.Find(indirectname));
|
|
if not Assigned(indsym) then
|
|
begin
|
|
{ it's possible that indirect symbol is not present in the list,
|
|
so we must create it as undefined }
|
|
indsym:=TObjSymbol.Create(ObjData.ObjSymbolList, indirectname);
|
|
indsym.typ:=AT_NONE;
|
|
indsym.bind:=AB_NONE;
|
|
end;
|
|
objsym.indsymbol:=indsym;
|
|
Result:=true;
|
|
end;
|
|
|
|
|
|
function TInternalAssembler.TreePass0(hp:Tai):Tai;
|
|
var
|
|
objsym,
|
|
objsymend : TObjSymbol;
|
|
begin
|
|
while assigned(hp) do
|
|
begin
|
|
case hp.typ of
|
|
ait_align :
|
|
begin
|
|
if tai_align_abstract(hp).aligntype>1 then
|
|
begin
|
|
{ always use the maximum fillsize in this pass to avoid possible
|
|
short jumps to become out of range }
|
|
Tai_align_abstract(hp).fillsize:=Tai_align_abstract(hp).aligntype;
|
|
ObjData.alloc(Tai_align_abstract(hp).fillsize);
|
|
end
|
|
else
|
|
Tai_align_abstract(hp).fillsize:=0;
|
|
end;
|
|
ait_datablock :
|
|
begin
|
|
{$ifdef USE_COMM_IN_BSS}
|
|
if writingpackages and
|
|
Tai_datablock(hp).is_global then
|
|
ObjData.SymbolDefine(Tai_datablock(hp).sym)
|
|
else
|
|
{$endif USE_COMM_IN_BSS}
|
|
begin
|
|
ObjData.allocalign(used_align(size_2_align(Tai_datablock(hp).size),0,ObjData.CurrObjSec.secalign));
|
|
ObjData.SymbolDefine(Tai_datablock(hp).sym);
|
|
ObjData.alloc(Tai_datablock(hp).size);
|
|
end;
|
|
end;
|
|
ait_real_80bit :
|
|
ObjData.alloc(tai_real_80bit(hp).savesize);
|
|
ait_real_64bit :
|
|
ObjData.alloc(8);
|
|
ait_real_32bit :
|
|
ObjData.alloc(4);
|
|
ait_comp_64bit :
|
|
ObjData.alloc(8);
|
|
ait_const:
|
|
begin
|
|
{ if symbols are provided we can calculate the value for relative symbols.
|
|
This is required for length calculation of leb128 constants }
|
|
if assigned(tai_const(hp).sym) then
|
|
begin
|
|
objsym:=Objdata.SymbolRef(tai_const(hp).sym);
|
|
{ objsym already defined and there is endsym? }
|
|
if assigned(objsym.objsection) and assigned(tai_const(hp).endsym) then
|
|
begin
|
|
objsymend:=Objdata.SymbolRef(tai_const(hp).endsym);
|
|
{ objsymend already defined? }
|
|
if assigned(objsymend.objsection) then
|
|
begin
|
|
if objsymend.objsection<>objsym.objsection then
|
|
internalerror(200404124);
|
|
Tai_const(hp).value:=objsymend.address-objsym.address+Tai_const(hp).symofs;
|
|
end;
|
|
end;
|
|
end;
|
|
ObjData.alloc(tai_const(hp).size);
|
|
end;
|
|
ait_directive:
|
|
begin
|
|
case tai_directive(hp).directive of
|
|
asd_indirect_symbol:
|
|
{ handled in TreePass1 }
|
|
;
|
|
asd_lazy_reference:
|
|
begin
|
|
if tai_directive(hp).name = nil then
|
|
Internalerror(2009112101);
|
|
objsym:=ObjData.symbolref(tai_directive(hp).name^);
|
|
objsym.bind:=AB_LAZY;
|
|
end;
|
|
asd_reference:
|
|
{ ignore for now, but should be added}
|
|
;
|
|
else
|
|
internalerror(2010011101);
|
|
end;
|
|
end;
|
|
ait_section:
|
|
begin
|
|
ObjData.CreateSection(Tai_section(hp).sectype,Tai_section(hp).name^,Tai_section(hp).secorder);
|
|
Tai_section(hp).sec:=ObjData.CurrObjSec;
|
|
end;
|
|
ait_symbol :
|
|
begin
|
|
{ needs extra support in the internal assembler }
|
|
{ the value is just ignored }
|
|
{if tai_symbol(hp).has_value then
|
|
internalerror(2009090804); ;}
|
|
ObjData.SymbolDefine(Tai_symbol(hp).sym);
|
|
end;
|
|
ait_label :
|
|
ObjData.SymbolDefine(Tai_label(hp).labsym);
|
|
ait_string :
|
|
ObjData.alloc(Tai_string(hp).len);
|
|
ait_instruction :
|
|
begin
|
|
{ reset instructions which could change in pass 2 }
|
|
Taicpu(hp).resetpass2;
|
|
ObjData.alloc(Taicpu(hp).Pass1(ObjData));
|
|
end;
|
|
ait_cutobject :
|
|
if SmartAsm then
|
|
break;
|
|
end;
|
|
hp:=Tai(hp.next);
|
|
end;
|
|
TreePass0:=hp;
|
|
end;
|
|
|
|
|
|
function TInternalAssembler.TreePass1(hp:Tai):Tai;
|
|
var
|
|
objsym,
|
|
objsymend : TObjSymbol;
|
|
begin
|
|
while assigned(hp) do
|
|
begin
|
|
case hp.typ of
|
|
ait_align :
|
|
begin
|
|
if tai_align_abstract(hp).aligntype>1 then
|
|
begin
|
|
{ here we must determine the fillsize which is used in pass2 }
|
|
Tai_align_abstract(hp).fillsize:=align(ObjData.CurrObjSec.Size,Tai_align_abstract(hp).aligntype)-
|
|
ObjData.CurrObjSec.Size;
|
|
ObjData.alloc(Tai_align_abstract(hp).fillsize);
|
|
end;
|
|
end;
|
|
ait_datablock :
|
|
begin
|
|
if (oso_data in ObjData.CurrObjSec.secoptions) then
|
|
Message(asmw_e_alloc_data_only_in_bss);
|
|
{$ifdef USE_COMM_IN_BSS}
|
|
if writingpackages and
|
|
Tai_datablock(hp).is_global then
|
|
begin
|
|
objsym:=ObjData.SymbolDefine(Tai_datablock(hp).sym);
|
|
objsym.size:=Tai_datablock(hp).size;
|
|
objsym.bind:=AB_COMMON;
|
|
objsym.alignment:=needtowritealignmentalsoforELF;
|
|
end
|
|
else
|
|
{$endif USE_COMM_IN_BSS}
|
|
begin
|
|
ObjData.allocalign(used_align(size_2_align(Tai_datablock(hp).size),0,ObjData.CurrObjSec.secalign));
|
|
objsym:=ObjData.SymbolDefine(Tai_datablock(hp).sym);
|
|
objsym.size:=Tai_datablock(hp).size;
|
|
ObjData.alloc(Tai_datablock(hp).size);
|
|
end;
|
|
end;
|
|
ait_real_80bit :
|
|
ObjData.alloc(tai_real_80bit(hp).savesize);
|
|
ait_real_64bit :
|
|
ObjData.alloc(8);
|
|
ait_real_32bit :
|
|
ObjData.alloc(4);
|
|
ait_comp_64bit :
|
|
ObjData.alloc(8);
|
|
ait_const:
|
|
begin
|
|
{ Recalculate relative symbols }
|
|
if assigned(tai_const(hp).sym) and
|
|
assigned(tai_const(hp).endsym) then
|
|
begin
|
|
objsym:=Objdata.SymbolRef(tai_const(hp).sym);
|
|
objsymend:=Objdata.SymbolRef(tai_const(hp).endsym);
|
|
if objsymend.objsection<>objsym.objsection then
|
|
internalerror(200905042);
|
|
Tai_const(hp).value:=objsymend.address-objsym.address+Tai_const(hp).symofs;
|
|
end;
|
|
ObjData.alloc(tai_const(hp).size);
|
|
end;
|
|
ait_section:
|
|
begin
|
|
{ use cached value }
|
|
ObjData.setsection(Tai_section(hp).sec);
|
|
end;
|
|
ait_stab :
|
|
begin
|
|
if assigned(Tai_stab(hp).str) then
|
|
WriteStab(Tai_stab(hp).str);
|
|
end;
|
|
ait_symbol :
|
|
ObjData.SymbolDefine(Tai_symbol(hp).sym);
|
|
ait_symbol_end :
|
|
begin
|
|
objsym:=ObjData.SymbolRef(Tai_symbol_end(hp).sym);
|
|
objsym.size:=ObjData.CurrObjSec.Size-objsym.offset;
|
|
end;
|
|
ait_label :
|
|
ObjData.SymbolDefine(Tai_label(hp).labsym);
|
|
ait_string :
|
|
ObjData.alloc(Tai_string(hp).len);
|
|
ait_instruction :
|
|
ObjData.alloc(Taicpu(hp).Pass1(ObjData));
|
|
ait_cutobject :
|
|
if SmartAsm then
|
|
break;
|
|
ait_directive :
|
|
begin
|
|
case tai_directive(hp).directive of
|
|
asd_indirect_symbol:
|
|
if tai_directive(hp).name = nil then
|
|
Internalerror(2009101103)
|
|
else if not SetIndirectToSymbol(Tai(hp.Previous), tai_directive(hp).name^) then
|
|
Internalerror(2009101102);
|
|
asd_lazy_reference:
|
|
{ handled in TreePass0 }
|
|
;
|
|
asd_reference:
|
|
{ ignore for now, but should be added}
|
|
;
|
|
else
|
|
internalerror(2010011102);
|
|
end;
|
|
end;
|
|
end;
|
|
hp:=Tai(hp.next);
|
|
end;
|
|
TreePass1:=hp;
|
|
end;
|
|
|
|
|
|
function TInternalAssembler.TreePass2(hp:Tai):Tai;
|
|
var
|
|
fillbuffer : tfillbuffer;
|
|
{$ifdef x86}
|
|
co : comp;
|
|
{$endif x86}
|
|
leblen : byte;
|
|
lebbuf : array[0..63] of byte;
|
|
objsym,
|
|
objsymend : TObjSymbol;
|
|
zerobuf : array[0..63] of byte;
|
|
begin
|
|
fillchar(zerobuf,sizeof(zerobuf),0);
|
|
{ main loop }
|
|
while assigned(hp) do
|
|
begin
|
|
case hp.typ of
|
|
ait_align :
|
|
begin
|
|
if oso_data in ObjData.CurrObjSec.secoptions then
|
|
ObjData.writebytes(Tai_align_abstract(hp).calculatefillbuf(fillbuffer,oso_executable in ObjData.CurrObjSec.secoptions)^,
|
|
Tai_align_abstract(hp).fillsize)
|
|
else
|
|
ObjData.alloc(Tai_align_abstract(hp).fillsize);
|
|
end;
|
|
ait_section :
|
|
begin
|
|
{ use cached value }
|
|
ObjData.setsection(Tai_section(hp).sec);
|
|
end;
|
|
ait_symbol :
|
|
begin
|
|
ObjOutput.exportsymbol(ObjData.SymbolRef(Tai_symbol(hp).sym));
|
|
end;
|
|
ait_datablock :
|
|
begin
|
|
ObjOutput.exportsymbol(ObjData.SymbolRef(Tai_datablock(hp).sym));
|
|
{$ifdef USE_COMM_IN_BSS}
|
|
if not(writingpackages and
|
|
Tai_datablock(hp).is_global) then
|
|
{$endif USE_COMM_IN_BSS}
|
|
begin
|
|
ObjData.allocalign(used_align(size_2_align(Tai_datablock(hp).size),0,ObjData.CurrObjSec.secalign));
|
|
ObjData.alloc(Tai_datablock(hp).size);
|
|
end;
|
|
end;
|
|
ait_real_80bit :
|
|
begin
|
|
ObjData.writebytes(Tai_real_80bit(hp).value,10);
|
|
ObjData.writebytes(zerobuf,Tai_real_80bit(hp).savesize-10);
|
|
end;
|
|
ait_real_64bit :
|
|
ObjData.writebytes(Tai_real_64bit(hp).value,8);
|
|
ait_real_32bit :
|
|
ObjData.writebytes(Tai_real_32bit(hp).value,4);
|
|
ait_comp_64bit :
|
|
begin
|
|
{$ifdef x86}
|
|
co:=comp(Tai_comp_64bit(hp).value);
|
|
ObjData.writebytes(co,8);
|
|
{$endif x86}
|
|
end;
|
|
ait_string :
|
|
ObjData.writebytes(Tai_string(hp).str^,Tai_string(hp).len);
|
|
ait_const :
|
|
begin
|
|
{ Recalculate relative symbols, addresses of forward references
|
|
can be changed in treepass1 }
|
|
if assigned(tai_const(hp).sym) and
|
|
assigned(tai_const(hp).endsym) then
|
|
begin
|
|
objsym:=Objdata.SymbolRef(tai_const(hp).sym);
|
|
objsymend:=Objdata.SymbolRef(tai_const(hp).endsym);
|
|
Tai_const(hp).value:=objsymend.address-objsym.address+Tai_const(hp).symofs;
|
|
end;
|
|
case tai_const(hp).consttype of
|
|
aitconst_64bit,
|
|
aitconst_32bit,
|
|
aitconst_16bit,
|
|
aitconst_8bit :
|
|
begin
|
|
if assigned(tai_const(hp).sym) and
|
|
not assigned(tai_const(hp).endsym) then
|
|
ObjData.writereloc(Tai_const(hp).symofs,tai_const(hp).size,Objdata.SymbolRef(tai_const(hp).sym),RELOC_ABSOLUTE)
|
|
else
|
|
ObjData.writebytes(Tai_const(hp).value,tai_const(hp).size);
|
|
end;
|
|
aitconst_rva_symbol :
|
|
begin
|
|
{ PE32+? }
|
|
if target_info.system=system_x86_64_win64 then
|
|
ObjData.writereloc(Tai_const(hp).symofs,sizeof(longint),Objdata.SymbolRef(tai_const(hp).sym),RELOC_RVA)
|
|
else
|
|
ObjData.writereloc(Tai_const(hp).symofs,sizeof(pint),Objdata.SymbolRef(tai_const(hp).sym),RELOC_RVA);
|
|
end;
|
|
aitconst_secrel32_symbol :
|
|
begin
|
|
{ Required for DWARF2 support under Windows }
|
|
ObjData.writereloc(Tai_const(hp).symofs,sizeof(longint),Objdata.SymbolRef(tai_const(hp).sym),RELOC_SECREL32);
|
|
end;
|
|
aitconst_uleb128bit,
|
|
aitconst_sleb128bit :
|
|
begin
|
|
if tai_const(hp).consttype=aitconst_uleb128bit then
|
|
leblen:=EncodeUleb128(qword(Tai_const(hp).value),lebbuf)
|
|
else
|
|
leblen:=EncodeSleb128(Tai_const(hp).value,lebbuf);
|
|
if leblen<>tai_const(hp).size then
|
|
internalerror(200709271);
|
|
ObjData.writebytes(lebbuf,leblen);
|
|
end;
|
|
aitconst_darwin_dwarf_delta32,
|
|
aitconst_darwin_dwarf_delta64:
|
|
ObjData.writebytes(Tai_const(hp).value,tai_const(hp).size);
|
|
else
|
|
internalerror(200603254);
|
|
end;
|
|
end;
|
|
ait_label :
|
|
begin
|
|
{ exporting shouldn't be necessary as labels are local,
|
|
but it's better to be on the safe side (PFV) }
|
|
ObjOutput.exportsymbol(ObjData.SymbolRef(Tai_label(hp).labsym));
|
|
end;
|
|
ait_instruction :
|
|
Taicpu(hp).Pass2(ObjData);
|
|
ait_stab :
|
|
WriteStab(Tai_stab(hp).str);
|
|
ait_function_name,
|
|
ait_force_line : ;
|
|
ait_cutobject :
|
|
if SmartAsm then
|
|
break;
|
|
end;
|
|
hp:=Tai(hp.next);
|
|
end;
|
|
TreePass2:=hp;
|
|
end;
|
|
|
|
|
|
procedure TInternalAssembler.writetree;
|
|
label
|
|
doexit;
|
|
var
|
|
hp : Tai;
|
|
ObjWriter : TObjectWriter;
|
|
begin
|
|
ObjWriter:=TObjectwriter.create;
|
|
ObjOutput:=CObjOutput.Create(ObjWriter);
|
|
ObjData:=ObjOutput.newObjData(ObjFileName);
|
|
|
|
{ Pass 0 }
|
|
ObjData.currpass:=0;
|
|
ObjData.createsection(sec_code);
|
|
ObjData.beforealloc;
|
|
{ start with list 1 }
|
|
currlistidx:=1;
|
|
currlist:=list[currlistidx];
|
|
hp:=Tai(currList.first);
|
|
while assigned(hp) do
|
|
begin
|
|
hp:=TreePass0(hp);
|
|
MaybeNextList(hp);
|
|
end;
|
|
ObjData.afteralloc;
|
|
{ leave if errors have occured }
|
|
if errorcount>0 then
|
|
goto doexit;
|
|
|
|
{ Pass 1 }
|
|
ObjData.currpass:=1;
|
|
ObjData.resetsections;
|
|
ObjData.beforealloc;
|
|
ObjData.createsection(sec_code);
|
|
{ start with list 1 }
|
|
currlistidx:=1;
|
|
currlist:=list[currlistidx];
|
|
hp:=Tai(currList.first);
|
|
while assigned(hp) do
|
|
begin
|
|
hp:=TreePass1(hp);
|
|
MaybeNextList(hp);
|
|
end;
|
|
ObjData.createsection(sec_code);
|
|
ObjData.afteralloc;
|
|
|
|
{ leave if errors have occured }
|
|
if errorcount>0 then
|
|
goto doexit;
|
|
|
|
{ Pass 2 }
|
|
ObjData.currpass:=2;
|
|
ObjData.resetsections;
|
|
ObjData.beforewrite;
|
|
ObjData.createsection(sec_code);
|
|
{ start with list 1 }
|
|
currlistidx:=1;
|
|
currlist:=list[currlistidx];
|
|
hp:=Tai(currList.first);
|
|
while assigned(hp) do
|
|
begin
|
|
hp:=TreePass2(hp);
|
|
MaybeNextList(hp);
|
|
end;
|
|
ObjData.createsection(sec_code);
|
|
ObjData.afterwrite;
|
|
|
|
{ don't write the .o file if errors have occured }
|
|
if errorcount=0 then
|
|
begin
|
|
{ write objectfile }
|
|
ObjOutput.startobjectfile(ObjFileName);
|
|
ObjOutput.writeobjectfile(ObjData);
|
|
end;
|
|
|
|
doexit:
|
|
{ Cleanup }
|
|
ObjData.free;
|
|
ObjData:=nil;
|
|
ObjWriter.free;
|
|
end;
|
|
|
|
|
|
procedure TInternalAssembler.writetreesmart;
|
|
var
|
|
hp : Tai;
|
|
startsectype : TAsmSectiontype;
|
|
place: tcutplace;
|
|
ObjWriter : TObjectWriter;
|
|
begin
|
|
if not(cs_asm_leave in current_settings.globalswitches) then
|
|
ObjWriter:=TARObjectWriter.create(current_module.staticlibfilename^)
|
|
else
|
|
ObjWriter:=TObjectwriter.create;
|
|
|
|
NextSmartName(cut_normal);
|
|
ObjOutput:=CObjOutput.Create(ObjWriter);
|
|
startsectype:=sec_code;
|
|
|
|
{ start with list 1 }
|
|
currlistidx:=1;
|
|
currlist:=list[currlistidx];
|
|
hp:=Tai(currList.first);
|
|
while assigned(hp) do
|
|
begin
|
|
ObjData:=ObjOutput.newObjData(ObjFileName);
|
|
|
|
{ Pass 0 }
|
|
ObjData.currpass:=0;
|
|
ObjData.resetsections;
|
|
ObjData.beforealloc;
|
|
ObjData.createsection(startsectype);
|
|
TreePass0(hp);
|
|
ObjData.afteralloc;
|
|
{ leave if errors have occured }
|
|
if errorcount>0 then
|
|
break;
|
|
|
|
{ Pass 1 }
|
|
ObjData.currpass:=1;
|
|
ObjData.resetsections;
|
|
ObjData.beforealloc;
|
|
ObjData.createsection(startsectype);
|
|
TreePass1(hp);
|
|
ObjData.afteralloc;
|
|
|
|
{ leave if errors have occured }
|
|
if errorcount>0 then
|
|
break;
|
|
|
|
{ Pass 2 }
|
|
ObjData.currpass:=2;
|
|
ObjOutput.startobjectfile(ObjFileName);
|
|
ObjData.resetsections;
|
|
ObjData.beforewrite;
|
|
ObjData.createsection(startsectype);
|
|
hp:=TreePass2(hp);
|
|
ObjData.afterwrite;
|
|
|
|
{ leave if errors have occured }
|
|
if errorcount>0 then
|
|
break;
|
|
|
|
{ write the current objectfile }
|
|
ObjOutput.writeobjectfile(ObjData);
|
|
ObjData.free;
|
|
ObjData:=nil;
|
|
|
|
{ end of lists? }
|
|
if not MaybeNextList(hp) then
|
|
break;
|
|
|
|
{ we will start a new objectfile so reset everything }
|
|
{ The place can still change in the next while loop, so don't init }
|
|
{ the writer yet (JM) }
|
|
if (hp.typ=ait_cutobject) then
|
|
place := Tai_cutobject(hp).place
|
|
else
|
|
place := cut_normal;
|
|
|
|
{ avoid empty files }
|
|
startsectype:=sec_code;
|
|
while assigned(hp) and
|
|
(Tai(hp).typ in [ait_marker,ait_comment,ait_section,ait_cutobject]) do
|
|
begin
|
|
if Tai(hp).typ=ait_section then
|
|
startsectype:=Tai_section(hp).sectype;
|
|
if (Tai(hp).typ=ait_cutobject) then
|
|
place:=Tai_cutobject(hp).place;
|
|
hp:=Tai(hp.next);
|
|
end;
|
|
|
|
if not MaybeNextList(hp) then
|
|
break;
|
|
|
|
{ start next objectfile }
|
|
NextSmartName(place);
|
|
end;
|
|
ObjData.free;
|
|
ObjData:=nil;
|
|
ObjWriter.free;
|
|
end;
|
|
|
|
|
|
procedure TInternalAssembler.MakeObject;
|
|
|
|
var to_do:set of TasmlistType;
|
|
i:TasmlistType;
|
|
|
|
procedure addlist(p:TAsmList);
|
|
begin
|
|
inc(lists);
|
|
list[lists]:=p;
|
|
end;
|
|
|
|
begin
|
|
to_do:=[low(Tasmlisttype)..high(Tasmlisttype)];
|
|
if usedeffileforexports then
|
|
exclude(to_do,al_exports);
|
|
if not(tf_section_threadvars in target_info.flags) then
|
|
exclude(to_do,al_threadvars);
|
|
for i:=low(TasmlistType) to high(TasmlistType) do
|
|
if (i in to_do) and (current_asmdata.asmlists[i]<>nil) then
|
|
addlist(current_asmdata.asmlists[i]);
|
|
|
|
if SmartAsm then
|
|
writetreesmart
|
|
else
|
|
writetree;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
Generate Assembler Files Main Procedure
|
|
*****************************************************************************}
|
|
|
|
Procedure GenerateAsm(smart:boolean);
|
|
var
|
|
a : TAssembler;
|
|
begin
|
|
if not assigned(CAssembler[target_asm.id]) then
|
|
Message(asmw_f_assembler_output_not_supported);
|
|
a:=CAssembler[target_asm.id].Create(smart);
|
|
a.MakeObject;
|
|
a.Free;
|
|
end;
|
|
|
|
|
|
Procedure OnlyAsm;
|
|
var
|
|
a : TExternalAssembler;
|
|
begin
|
|
a:=TExternalAssembler.Create(false);
|
|
a.DoAssemble;
|
|
a.Free;
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
Init/Done
|
|
*****************************************************************************}
|
|
|
|
procedure RegisterAssembler(const r:tasminfo;c:TAssemblerClass);
|
|
var
|
|
t : tasm;
|
|
begin
|
|
t:=r.id;
|
|
if assigned(asminfos[t]) then
|
|
writeln('Warning: Assembler is already registered!')
|
|
else
|
|
Getmem(asminfos[t],sizeof(tasminfo));
|
|
asminfos[t]^:=r;
|
|
CAssembler[t]:=c;
|
|
end;
|
|
|
|
end.
|