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556 lines
16 KiB
ObjectPascal
556 lines
16 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Daniel Mantione
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Portions Copyright (c) 1998-2000 Eberhard Mattes
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Unit to write out import libraries and def files for OS/2
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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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{
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A lot of code in this unit has been ported from C to Pascal from the
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emximp utility, part of the EMX development system. Emximp is copyrighted
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by Eberhard Mattes. Note: Eberhard doesn't know much about the Pascal
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port, please send questions to Daniel Mantione
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<d.s.p.mantione@twi.tudelft.nl>.
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}
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unit t_os2;
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interface
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uses
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import,link,comprsrc;
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type
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pimportlibos2=^timportlibos2;
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timportlibos2=object(timportlib)
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procedure preparelib(const s:string);virtual;
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procedure importprocedure(const func,module:string;index:longint;const name:string);virtual;
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procedure generatelib;virtual;
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end;
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plinkeros2=^tlinkeros2;
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tlinkeros2=object(tlinker)
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private
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Function WriteResponseFile(isdll:boolean) : Boolean;
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public
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constructor Init;
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procedure SetDefaultInfo;virtual;
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function MakeExecutable:boolean;virtual;
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end;
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{***************************************************************************}
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{***************************************************************************}
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implementation
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uses
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{$ifdef Delphi}
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dmisc,
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{$else Delphi}
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dos,
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{$endif Delphi}
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globtype,strings,cobjects,comphook,systems,
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globals,verbose,files,script;
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const profile_flag:boolean=false;
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const n_ext = 1;
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n_abs = 2;
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n_text = 4;
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n_data = 6;
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n_bss = 8;
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n_imp1 = $68;
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n_imp2 = $6a;
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type reloc=packed record {This is the layout of a relocation table
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entry.}
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address:longint; {Fixup location}
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remaining:longint;
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{Meaning of bits for remaining:
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0..23: Symbol number or segment
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24: Self-relative fixup if non-zero
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25..26: Fixup size (0: 1 byte, 1: 2, 2: 4 bytes)
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27: Reference to symbol or segment
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28..31 Not used}
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end;
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nlist=packed record {This is the layout of a symbol table entry.}
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strofs:longint; {Offset in string table}
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typ:byte; {Type of the symbol}
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other:byte; {Other information}
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desc:word; {More information}
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value:longint; {Value (address)}
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end;
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a_out_header=packed record
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magic:word; {Magic word, must be $0107}
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machtype:byte; {Machine type}
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flags:byte; {Flags}
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text_size:longint; {Length of text, in bytes}
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data_size:longint; {Length of initialized data, in bytes}
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bss_size:longint; {Length of uninitialized data, in bytes}
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sym_size:longint; {Length of symbol table, in bytes}
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entry:longint; {Start address (entry point)}
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trsize:longint; {Length of relocation info for text, bytes}
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drsize:longint; {Length of relocation info for data, bytes}
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end;
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ar_hdr=packed record
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ar_name:array[0..15] of char;
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ar_date:array[0..11] of char;
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ar_uid:array[0..5] of char;
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ar_gid:array[0..5] of char;
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ar_mode:array[0..7] of char;
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ar_size:array[0..9] of char;
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ar_fmag:array[0..1] of char;
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end;
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var aout_str_size:longint;
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aout_str_tab:array[0..2047] of byte;
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aout_sym_count:longint;
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aout_sym_tab:array[0..5] of nlist;
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aout_text:array[0..63] of byte;
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aout_text_size:longint;
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aout_treloc_tab:array[0..1] of reloc;
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aout_treloc_count:longint;
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aout_size:longint;
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seq_no:longint;
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ar_member_size:longint;
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out_file:file;
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procedure write_ar(const name:string;size:longint);
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var ar:ar_hdr;
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time:datetime;
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dummy:word;
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numtime:longint;
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tmp:string[19];
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begin
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ar_member_size:=size;
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fillchar(ar.ar_name,sizeof(ar.ar_name),' ');
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move(name[1],ar.ar_name,length(name));
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getdate(time.year,time.month,time.day,dummy);
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gettime(time.hour,time.min,time.sec,dummy);
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packtime(time,numtime);
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str(numtime,tmp);
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fillchar(ar.ar_date,sizeof(ar.ar_date),' ');
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move(tmp[1],ar.ar_date,length(tmp));
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ar.ar_uid:='0 ';
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ar.ar_gid:='0 ';
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ar.ar_mode:='100666'#0#0;
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str(size,tmp);
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fillchar(ar.ar_size,sizeof(ar.ar_size),' ');
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move(tmp[1],ar.ar_size,length(tmp));
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ar.ar_fmag:='`'#10;
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blockwrite(out_file,ar,sizeof(ar));
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end;
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procedure finish_ar;
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var a:byte;
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begin
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a:=0;
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if odd(ar_member_size) then
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blockwrite(out_file,a,1);
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end;
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procedure aout_init;
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begin
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aout_str_size:=sizeof(longint);
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aout_sym_count:=0;
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aout_text_size:=0;
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aout_treloc_count:=0;
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end;
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function aout_sym(const name:string;typ,other:byte;desc:word;
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value:longint):longint;
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begin
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if aout_str_size+length(name)+1>sizeof(aout_str_tab) then
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Do_halt($da);
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if aout_sym_count>=sizeof(aout_sym_tab) div sizeof(aout_sym_tab[0]) then
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Do_halt($da);
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aout_sym_tab[aout_sym_count].strofs:=aout_str_size;
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aout_sym_tab[aout_sym_count].typ:=typ;
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aout_sym_tab[aout_sym_count].other:=other;
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aout_sym_tab[aout_sym_count].desc:=desc;
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aout_sym_tab[aout_sym_count].value:=value;
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strPcopy(@aout_str_tab[aout_str_size],name);
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aout_str_size:=aout_str_size+length(name)+1;
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aout_sym:=aout_sym_count;
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inc(aout_sym_count);
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end;
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procedure aout_text_byte(b:byte);
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begin
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if aout_text_size>=sizeof(aout_text) then
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Do_halt($da);
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aout_text[aout_text_size]:=b;
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inc(aout_text_size);
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end;
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procedure aout_text_dword(d:longint);
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type li_ar=array[0..3] of byte;
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begin
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aout_text_byte(li_ar(d)[0]);
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aout_text_byte(li_ar(d)[1]);
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aout_text_byte(li_ar(d)[2]);
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aout_text_byte(li_ar(d)[3]);
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end;
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procedure aout_treloc(address,symbolnum,pcrel,len,ext:longint);
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begin
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if aout_treloc_count>=sizeof(aout_treloc_tab) div sizeof(reloc) then
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Do_halt($da);
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aout_treloc_tab[aout_treloc_count].address:=address;
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aout_treloc_tab[aout_treloc_count].remaining:=symbolnum+pcrel shl 24+
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len shl 25+ext shl 27;
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inc(aout_treloc_count);
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end;
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procedure aout_finish;
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begin
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while (aout_text_size and 3)<>0 do
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aout_text_byte ($90);
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aout_size:=sizeof(a_out_header)+aout_text_size+aout_treloc_count*
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sizeof(reloc)+aout_sym_count*sizeof(aout_sym_tab[0])+aout_str_size;
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end;
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procedure aout_write;
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var ao:a_out_header;
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begin
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ao.magic:=$0107;
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ao.machtype:=0;
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ao.flags:=0;
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ao.text_size:=aout_text_size;
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ao.data_size:=0;
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ao.bss_size:=0;
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ao.sym_size:=aout_sym_count*sizeof(aout_sym_tab[0]);
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ao.entry:=0;
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ao.trsize:=aout_treloc_count*sizeof(reloc);
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ao.drsize:=0;
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blockwrite(out_file,ao,sizeof(ao));
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blockwrite(out_file,aout_text,aout_text_size);
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blockwrite(out_file,aout_treloc_tab,sizeof(reloc)*aout_treloc_count);
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blockwrite(out_file,aout_sym_tab,sizeof(aout_sym_tab[0])*aout_sym_count);
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longint((@aout_str_tab)^):=aout_str_size;
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blockwrite(out_file,aout_str_tab,aout_str_size);
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end;
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procedure timportlibos2.preparelib(const s:string);
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{This code triggers a lot of bugs in the compiler.
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const armag='!<arch>'#10;
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ar_magic:array[1..length(armag)] of char=armag;}
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const ar_magic:array[1..8] of char='!<arch>'#10;
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begin
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seq_no:=1;
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if not (cs_create_smart in aktmoduleswitches) then
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{$IFDEF NEWST}
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current_module^.linkotherstaticlibs.
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insert(new(Plinkitem,init(s,link_allways)));
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{$ELSE}
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current_module^.linkotherstaticlibs.insert(s,link_allways);
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{$ENDIF NEWST}
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assign(out_file,current_module^.outputpath^+s+'.ao2');
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rewrite(out_file,1);
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blockwrite(out_file,ar_magic,sizeof(ar_magic));
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end;
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procedure timportlibos2.importprocedure(const func,module:string;index:longint;const name:string);
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{func = Name of function to import.
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module = Name of DLL to import from.
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index = Index of function in DLL. Use 0 to import by name.
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name = Name of function in DLL. Ignored when index=0;}
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var tmp1,tmp2,tmp3:string;
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sym_mcount,sym_import:longint;
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fixup_mcount,fixup_import:longint;
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begin
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aout_init;
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tmp2:=func;
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if profile_flag and not (copy(func,1,4)='_16_') then
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begin
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{sym_entry:=aout_sym(func,n_text+n_ext,0,0,aout_text_size);}
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sym_mcount:=aout_sym('__mcount',n_ext,0,0,0);
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{Use, say, "_$U_DosRead" for "DosRead" to import the
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non-profiled function.}
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tmp2:='__$U_'+func;
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sym_import:=aout_sym(tmp2,n_ext,0,0,0);
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aout_text_byte($55); {push ebp}
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aout_text_byte($89); {mov ebp, esp}
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aout_text_byte($e5);
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aout_text_byte($e8); {call _mcount}
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fixup_mcount:=aout_text_size;
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aout_text_dword(0-(aout_text_size+4));
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aout_text_byte($5d); {pop ebp}
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aout_text_byte($e9); {jmp _$U_DosRead}
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fixup_import:=aout_text_size;
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aout_text_dword(0-(aout_text_size+4));
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aout_treloc(fixup_mcount,sym_mcount,1,2,1);
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aout_treloc (fixup_import, sym_import,1,2,1);
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end;
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str(seq_no,tmp1);
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tmp1:='IMPORT#'+tmp1;
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if name='' then
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begin
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str(index,tmp3);
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tmp3:=func+'='+module+'.'+tmp3;
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end
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else
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tmp3:=func+'='+module+'.'+name;
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aout_sym(tmp2,n_imp1+n_ext,0,0,0);
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aout_sym(tmp3,n_imp2+n_ext,0,0,0);
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aout_finish;
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write_ar(tmp1,aout_size);
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aout_write;
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finish_ar;
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inc(seq_no);
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end;
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procedure timportlibos2.generatelib;
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begin
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close(out_file);
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end;
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{****************************************************************************
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TLinkeros2
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****************************************************************************}
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Constructor TLinkeros2.Init;
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begin
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Inherited Init;
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{ allow duplicated libs (PM) }
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SharedLibFiles.doubles:=true;
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StaticLibFiles.doubles:=true;
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end;
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procedure TLinkeros2.SetDefaultInfo;
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begin
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with Info do
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begin
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ExeCmd[1]:='ld $OPT -o $EXE @$RES';
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ExeCmd[2]:='emxbind -b $STRIP $PM $RSRC -k$STACKKB -h$HEAPMB -o $EXE.exe $EXE -aim -s$DOSHEAPKB';
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end;
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end;
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Function TLinkeros2.WriteResponseFile(isdll:boolean) : Boolean;
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Var
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linkres : TLinkRes;
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i : longint;
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{$IFDEF NEWST}
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HPath : PStringItem;
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{$ELSE}
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HPath : PStringQueueItem;
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{$ENDIF NEWST}
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s : string;
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begin
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WriteResponseFile:=False;
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{ Open link.res file }
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LinkRes.Init(outputexedir+Info.ResName);
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{ Write path to search libraries }
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HPath:=current_module^.locallibrarysearchpath.First;
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while assigned(HPath) do
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begin
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LinkRes.Add('-L'+HPath^.Data^);
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HPath:=HPath^.Next;
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end;
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HPath:=LibrarySearchPath.First;
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while assigned(HPath) do
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begin
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LinkRes.Add('-L'+HPath^.Data^);
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HPath:=HPath^.Next;
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end;
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{ add objectfiles, start with prt0 always }
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LinkRes.AddFileName(FindObjectFile('prt0'));
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while not ObjectFiles.Empty do
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begin
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s:=ObjectFiles.Get;
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if s<>'' then
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LinkRes.AddFileName(s);
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end;
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{ Write staticlibraries }
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{ No group !! This will not work correctly PM }
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While not StaticLibFiles.Empty do
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begin
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S:=StaticLibFiles.Get;
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LinkRes.AddFileName(s)
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end;
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{ Write sharedlibraries like -l<lib>, also add the needed dynamic linker
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here to be sure that it gets linked this is needed for glibc2 systems (PFV) }
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While not SharedLibFiles.Empty do
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begin
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S:=SharedLibFiles.Get;
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i:=Pos(target_os.sharedlibext,S);
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if i>0 then
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Delete(S,i,255);
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LinkRes.Add('-l'+s);
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end;
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{ Write and Close response }
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linkres.writetodisk;
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linkres.done;
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WriteResponseFile:=True;
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end;
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function TLinkeros2.MakeExecutable:boolean;
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var
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binstr,
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cmdstr : string;
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success : boolean;
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i : longint;
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PMStr,
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StripStr: string[40];
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RsrcStr : string;
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begin
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if not(cs_link_extern in aktglobalswitches) then
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Message1(exec_i_linking,current_module^.exefilename^);
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{ Create some replacements }
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if (cs_link_strip in aktglobalswitches) then
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StripStr := '-s'
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else
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StripStr := '';
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if usewindowapi then
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PMStr := '-p'
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else
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PMStr := '';
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if not (Current_Module^.ResourceFiles.Empty) then
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RsrcStr := '-r ' + Current_Module^.ResourceFiles.Get
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else
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RsrcStr := '';
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(* Only one resource file supported, discard everything else
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(should be already empty anyway, however. *)
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Current_Module^.ResourceFiles.Clear;
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{ Write used files and libraries }
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WriteResponseFile(false);
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{ Call linker }
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success:=false;
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for i:=1 to 2 do
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begin
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SplitBinCmd(Info.ExeCmd[i],binstr,cmdstr);
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if binstr<>'' then
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begin
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Replace(cmdstr,'$HEAPMB',tostr((maxheapsize+1048575) shr 20));
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{Size of the stack when an EMX program runs in OS/2.}
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Replace(cmdstr,'$STACKKB',tostr((stacksize+1023) shr 10));
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{When an EMX program runs in DOS, the heap and stack share the
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same memory pool. The heap grows upwards, the stack grows downwards.}
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Replace(cmdstr,'$DOSHEAPKB',tostr((stacksize+maxheapsize+1023) shr 10));
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Replace(cmdstr,'$STRIP',StripStr);
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Replace(cmdstr,'$PM',PMStr);
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Replace(cmdstr,'$RES',outputexedir+Info.ResName);
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Replace(cmdstr,'$OPT',Info.ExtraOptions);
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Replace(cmdstr,'$RSRC',RsrcStr);
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Replace(cmdstr,'$EXE',current_module^.exefilename^);
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success:=DoExec(FindUtil(binstr),cmdstr,(i=1),false);
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(* We still want to have the PPAS script complete, right?
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if not success then
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break;
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*)
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end;
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end;
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{ Remove ReponseFile }
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if (success) and not(cs_link_extern in aktglobalswitches) then
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RemoveFile(outputexedir+Info.ResName);
|
|
|
|
MakeExecutable:=success; { otherwise a recursive call to link method }
|
|
end;
|
|
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.13 2000-06-28 03:34:06 hajny
|
|
* little corrections for EMX resources
|
|
|
|
Revision 1.12 2000/06/25 19:08:28 hajny
|
|
+ $R support for OS/2 (EMX) added
|
|
|
|
Revision 1.11 2000/04/01 10:45:14 hajny
|
|
* .ao2 bug fixed
|
|
|
|
Revision 1.10 2000/02/28 17:23:57 daniel
|
|
* Current work of symtable integration committed. The symtable can be
|
|
activated by defining 'newst', but doesn't compile yet. Changes in type
|
|
checking and oop are completed. What is left is to write a new
|
|
symtablestack and adapt the parser to use it.
|
|
|
|
Revision 1.9 2000/02/09 13:23:06 peter
|
|
* log truncated
|
|
|
|
Revision 1.8 2000/01/09 00:55:51 pierre
|
|
* GROUP of smartlink units put before the C libraries
|
|
to allow for smartlinking code that uses C code.
|
|
|
|
Revision 1.7 2000/01/07 01:14:43 peter
|
|
* updated copyright to 2000
|
|
|
|
Revision 1.6 1999/11/30 10:40:56 peter
|
|
+ ttype, tsymlist
|
|
|
|
Revision 1.5 1999/11/29 20:15:29 hajny
|
|
* missing space in EMXBIND params
|
|
|
|
Revision 1.4 1999/11/16 23:39:04 peter
|
|
* use outputexedir for link.res location
|
|
|
|
Revision 1.3 1999/11/12 11:03:50 peter
|
|
* searchpaths changed to stringqueue object
|
|
|
|
Revision 1.2 1999/11/04 10:55:31 peter
|
|
* TSearchPathString for the string type of the searchpaths, which is
|
|
ansistring under FPC/Delphi
|
|
|
|
Revision 1.1 1999/10/21 14:29:38 peter
|
|
* redesigned linker object
|
|
+ library support for linux (only procedures can be exported)
|
|
|
|
}
|