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224 lines
8.2 KiB
ObjectPascal
224 lines
8.2 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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This unit handles the exports parsing
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit pexports;
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interface
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{ reads an exports statement in a library }
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procedure read_exports;
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implementation
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uses
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globtype,systems,tokens,
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strings,cobjects,globals,verbose,
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scanner,symconst,symtable,pbase,
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export,GenDef;
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procedure read_exports;
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var
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hp : pexported_item;
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code : integer;
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DefString:string;
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ProcName:string;
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InternalProcName:string;
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begin
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DefString:='';
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InternalProcName:='';
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consume(_EXPORTS);
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while true do
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begin
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hp:=new(pexported_item,init);
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if token=_ID then
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begin
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getsym(pattern,true);
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if srsym^.typ=unitsym then
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begin
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consume(_ID);
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consume(_POINT);
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getsymonlyin(punitsym(srsym)^.unitsymtable,pattern);
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end;
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consume(_ID);
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if assigned(srsym) then
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begin
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hp^.sym:=srsym;
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if ((srsym^.typ<>procsym) or
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((tf_need_export in target_info.flags) and
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not(po_exports in pprocdef(pprocsym(srsym)^.definition)^.procoptions)
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)
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) and
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(srsym^.typ<>varsym) and (srsym^.typ<>typedconstsym) then
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Message(parser_e_illegal_symbol_exported)
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else
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begin
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ProcName:=hp^.sym^.name;
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InternalProcName:=hp^.sym^.mangledname;
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{ This is wrong if the first is not
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an underline }
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if InternalProcName[1]='_' then
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delete(InternalProcName,1,1)
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else if (target_os.id=os_i386_win32) and UseDeffileForExport then
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begin
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Message(parser_e_dlltool_unit_var_problem);
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Message(parser_e_dlltool_unit_var_problem2);
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end;
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if length(InternalProcName)<2 then
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Message(parser_e_procname_to_short_for_export);
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DefString:=ProcName+'='+InternalProcName;
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end;
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if (idtoken=_INDEX) then
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begin
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consume(_INDEX);
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hp^.options:=hp^.options or eo_index;
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val(pattern,hp^.index,code);
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consume(_INTCONST);
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if target_os.id=os_i386_win32 then
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DefString:=ProcName+'='+InternalProcName+' @ '+tostr(hp^.index)
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else
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DefString:=ProcName+'='+InternalProcName; {Index ignored!}
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end;
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if (idtoken=_NAME) then
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begin
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consume(_NAME);
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hp^.name:=stringdup(pattern);
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hp^.options:=hp^.options or eo_name;
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if token=_CCHAR then
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consume(_CCHAR)
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else
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consume(_CSTRING);
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DefString:=hp^.name^+'='+InternalProcName;
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end;
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if (idtoken=_RESIDENT) then
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begin
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consume(_RESIDENT);
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hp^.options:=hp^.options or eo_resident;
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DefString:=ProcName+'='+InternalProcName;{Resident ignored!}
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end;
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if (DefString<>'') and UseDeffileForExport then
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DefFile.AddExport(DefString);
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if srsym^.typ=procsym then
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exportlib^.exportprocedure(hp)
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else
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begin
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exportlib^.exportvar(hp);
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end;
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end;
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end
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else
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consume(_ID);
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if token=_COMMA then
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consume(_COMMA)
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else
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break;
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end;
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consume(_SEMICOLON);
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if not DefFile.empty then
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DefFile.writefile;
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end;
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end.
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{
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$Log$
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Revision 1.18 2000-01-07 01:14:28 peter
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* updated copyright to 2000
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Revision 1.17 1999/12/20 23:23:30 pierre
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+ $description $version
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Revision 1.16 1999/12/08 10:40:01 pierre
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+ allow use of unit var in exports of DLL for win32
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by using direct export writing by default instead of use of DEFFILE
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that does not allow assembler labels that do not
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start with an underscore.
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Use -WD to force use of Deffile for Win32 DLL
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Revision 1.15 1999/11/22 22:20:43 pierre
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* Def file syntax for win32 with index corrected
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* direct output of .edata leads to same indexes
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(index 5 leads to next export being 6 unless otherwise
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specified like for enums)
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Revision 1.14 1999/11/20 01:19:10 pierre
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* DLL index used for win32 target with DEF file
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+ DLL initialization/finalization support
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Revision 1.13 1999/10/26 12:30:44 peter
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* const parameter is now checked
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* better and generic check if a node can be used for assigning
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* export fixes
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* procvar equal works now (it never had worked at least from 0.99.8)
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* defcoll changed to linkedlist with pparaitem so it can easily be
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walked both directions
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Revision 1.12 1999/08/10 12:51:19 pierre
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* bind_win32_dll removed (Relocsection used instead)
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* now relocsection is true by default ! (needs dlltool
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for DLL generation)
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Revision 1.11 1999/08/04 13:02:54 jonas
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* all tokens now start with an underscore
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* PowerPC compiles!!
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Revision 1.10 1999/08/03 22:02:58 peter
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* moved bitmask constants to sets
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* some other type/const renamings
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Revision 1.9 1999/05/04 21:44:56 florian
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* changes to compile it with Delphi 4.0
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Revision 1.8 1999/03/26 00:05:35 peter
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* released valintern
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+ deffile is now removed when compiling is finished
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* ^( compiles now correct
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+ static directive
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* shrd fixed
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Revision 1.7 1999/02/22 02:44:12 peter
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* ag386bin doesn't use i386.pas anymore
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Revision 1.6 1998/12/11 00:03:31 peter
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+ globtype,tokens,version unit splitted from globals
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Revision 1.5 1998/11/30 13:26:25 pierre
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* the code for ordering the exported procs/vars was buggy
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+ added -WB to force binding (Ozerski way of creating DLL)
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this is off by default as direct writing of .edata section seems
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OK
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Revision 1.4 1998/11/30 09:43:21 pierre
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* some range check bugs fixed (still not working !)
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+ added DLL writing support for win32 (also accepts variables)
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+ TempAnsi for code that could be used for Temporary ansi strings
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handling
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Revision 1.3 1998/10/29 11:35:51 florian
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* some dll support for win32
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* fixed assembler writing for PalmOS
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Revision 1.2 1998/09/26 17:45:35 peter
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+ idtoken and only one token table
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}
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