mirror of
https://gitlab.com/freepascal.org/fpc/source.git
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ec4d287fd8
assembler and debuginfo and use these vars to override
the defaults for the target after the parameters are read
* remove not-maintained and tested gdb code
git-svn-id: trunk@1201 -
1606 lines
51 KiB
ObjectPascal
1606 lines
51 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Florian Klaempfl
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This unit implements the first loading and searching of the modules
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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 fppu;
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{$i fpcdefs.inc}
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{ close ppufiles on system that are
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short on file handles like DOS system PM }
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{$ifdef GO32V2}
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{$define SHORT_ON_FILE_HANDLES}
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{$endif GO32V2}
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{$ifdef WATCOM}
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{$define SHORT_ON_FILE_HANDLES}
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{$endif WATCOM}
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interface
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uses
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cutils,cclasses,
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globtype,globals,finput,fmodule,
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symbase,ppu,symtype;
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type
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tppumodule = class(tmodule)
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ppufile : tcompilerppufile; { the PPU file }
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sourcefn : pstring; { Source specified with "uses .. in '..'" }
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{$ifdef Test_Double_checksum}
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crc_array : pointer;
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crc_size : longint;
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crc_array2 : pointer;
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crc_size2 : longint;
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{$endif def Test_Double_checksum}
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constructor create(LoadedFrom:TModule;const s:string;const fn:string;_is_unit:boolean);
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destructor destroy;override;
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procedure reset;override;
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function openppu:boolean;
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procedure getppucrc;
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procedure writeppu;
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procedure loadppu;
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function needrecompile:boolean;
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private
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function search_unit(onlysource,shortname:boolean):boolean;
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procedure load_interface;
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procedure load_implementation;
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procedure load_symtable_refs;
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procedure load_usedunits;
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procedure writesourcefiles;
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procedure writeusedunit(intf:boolean);
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procedure writelinkcontainer(var p:tlinkcontainer;id:byte;strippath:boolean);
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procedure writederefmap;
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procedure writederefdata;
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procedure putasmsymbol_in_idx(s:tnamedindexitem;arg:pointer);
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procedure writeasmsymbols;
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procedure readsourcefiles;
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procedure readloadunit;
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procedure readlinkcontainer(var p:tlinkcontainer);
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procedure readderefmap;
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procedure readderefdata;
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procedure readasmsymbols;
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{$IFDEF MACRO_DIFF_HINT}
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procedure writeusedmacro(p:TNamedIndexItem;arg:pointer);
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procedure writeusedmacros;
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procedure readusedmacros;
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{$ENDIF}
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end;
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procedure reload_flagged_units;
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function registerunit(callermodule:tmodule;const s : stringid;const fn:string) : tppumodule;
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implementation
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uses
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verbose,systems,version,
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symtable, symsym,
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scanner,
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aasmbase,
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parser;
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{****************************************************************************
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Helpers
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****************************************************************************}
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procedure reload_flagged_units;
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var
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hp : tmodule;
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begin
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{ now reload all dependent units }
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hp:=tmodule(loaded_units.first);
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while assigned(hp) do
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begin
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if hp.do_reload then
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tppumodule(hp).loadppu;
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hp:=tmodule(hp.next);
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end;
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end;
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{****************************************************************************
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TPPUMODULE
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****************************************************************************}
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constructor tppumodule.create(LoadedFrom:TModule;const s:string;const fn:string;_is_unit:boolean);
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begin
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inherited create(LoadedFrom,s,_is_unit);
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ppufile:=nil;
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sourcefn:=stringdup(fn);
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end;
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destructor tppumodule.Destroy;
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begin
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if assigned(ppufile) then
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ppufile.free;
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ppufile:=nil;
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stringdispose(sourcefn);
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inherited Destroy;
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end;
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procedure tppumodule.reset;
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begin
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if assigned(ppufile) then
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begin
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ppufile.free;
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ppufile:=nil;
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end;
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inherited reset;
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end;
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function tppumodule.openppu:boolean;
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var
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ppufiletime : longint;
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begin
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openppu:=false;
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Message1(unit_t_ppu_loading,ppufilename^);
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{ Get ppufile time (also check if the file exists) }
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ppufiletime:=getnamedfiletime(ppufilename^);
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if ppufiletime=-1 then
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exit;
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{ Open the ppufile }
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Message1(unit_u_ppu_name,ppufilename^);
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ppufile:=tcompilerppufile.create(ppufilename^);
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if not ppufile.openfile then
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begin
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ppufile.free;
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ppufile:=nil;
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Message(unit_u_ppu_file_too_short);
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exit;
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end;
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{ check for a valid PPU file }
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if not ppufile.CheckPPUId then
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begin
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ppufile.free;
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ppufile:=nil;
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Message(unit_u_ppu_invalid_header);
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exit;
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end;
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{ check for allowed PPU versions }
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if not (ppufile.GetPPUVersion = CurrentPPUVersion) then
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begin
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Message1(unit_u_ppu_invalid_version,tostr(ppufile.GetPPUVersion));
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ppufile.free;
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ppufile:=nil;
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exit;
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end;
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{ check the target processor }
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if tsystemcpu(ppufile.header.cpu)<>target_cpu then
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begin
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ppufile.free;
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ppufile:=nil;
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Message(unit_u_ppu_invalid_processor);
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exit;
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end;
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{ check target }
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if tsystem(ppufile.header.target)<>target_info.system then
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begin
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ppufile.free;
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ppufile:=nil;
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Message(unit_u_ppu_invalid_target);
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exit;
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end;
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{$ifdef cpufpemu}
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{ check if floating point emulation is on?}
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{ fpu emulation isn't unit levelwise
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if ((ppufile.header.flags and uf_fpu_emulation)<>0) and
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(cs_fp_emulation in aktmoduleswitches) then
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begin
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ppufile.free;
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ppufile:=nil;
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Message(unit_u_ppu_invalid_fpumode);
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exit;
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end;
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}
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{$endif cpufpemu}
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{ Load values to be access easier }
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flags:=ppufile.header.flags;
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crc:=ppufile.header.checksum;
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interface_crc:=ppufile.header.interface_checksum;
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{ Show Debug info }
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Message1(unit_u_ppu_time,filetimestring(ppufiletime));
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Message1(unit_u_ppu_flags,tostr(flags));
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Message1(unit_u_ppu_crc,hexstr(ppufile.header.checksum,8));
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Message1(unit_u_ppu_crc,hexstr(ppufile.header.interface_checksum,8)+' (intfc)');
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do_compile:=false;
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openppu:=true;
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end;
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function tppumodule.search_unit(onlysource,shortname:boolean):boolean;
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var
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singlepathstring,
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filename : string;
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Function UnitExists(const ext:string;var foundfile:string):boolean;
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begin
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Message1(unit_t_unitsearch,Singlepathstring+filename+ext);
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UnitExists:=FindFile(FileName+ext,Singlepathstring,foundfile);
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end;
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Function PPUSearchPath(const s:string):boolean;
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var
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found : boolean;
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hs : string;
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begin
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Found:=false;
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singlepathstring:=FixPath(s,false);
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{ Check for PPU file }
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Found:=UnitExists(target_info.unitext,hs);
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if Found then
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Begin
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SetFileName(hs,false);
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Found:=OpenPPU;
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End;
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PPUSearchPath:=Found;
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end;
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Function SourceSearchPath(const s:string):boolean;
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var
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found : boolean;
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hs : string;
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begin
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Found:=false;
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singlepathstring:=FixPath(s,false);
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{ Check for Sources }
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ppufile:=nil;
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do_compile:=true;
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recompile_reason:=rr_noppu;
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{Check for .pp file}
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Found:=UnitExists(sourceext,hs);
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if not Found then
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begin
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{ Check for .pas }
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Found:=UnitExists(pasext,hs);
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end;
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if not Found and (m_mac in aktmodeswitches) then
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begin
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{ Check for .p, if mode is macpas}
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Found:=UnitExists(pext,hs);
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end;
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stringdispose(mainsource);
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if Found then
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begin
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sources_avail:=true;
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{ Load Filenames when found }
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mainsource:=StringDup(hs);
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SetFileName(hs,false);
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end
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else
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sources_avail:=false;
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SourceSearchPath:=Found;
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end;
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Function SearchPath(const s:string):boolean;
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var
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found : boolean;
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begin
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{ First check for a ppu, then for the source }
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found:=false;
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if not onlysource then
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found:=PPUSearchPath(s);
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if not found then
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found:=SourceSearchPath(s);
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SearchPath:=found;
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end;
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Function SearchPathList(list:TSearchPathList):boolean;
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var
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hp : TStringListItem;
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found : boolean;
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begin
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found:=false;
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hp:=TStringListItem(list.First);
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while assigned(hp) do
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begin
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found:=SearchPath(hp.Str);
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if found then
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break;
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hp:=TStringListItem(hp.next);
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end;
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SearchPathList:=found;
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end;
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var
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fnd : boolean;
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hs : string;
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begin
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if shortname then
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filename:=FixFileName(Copy(realmodulename^,1,8))
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else
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filename:=FixFileName(realmodulename^);
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{ try to find unit
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1. look for ppu in cwd
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2. look for ppu in outputpath if set, this is tp7 compatible (PFV)
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3. look for the specified source file (from the uses line)
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4. look for source in cwd
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5. look in same path as local unit
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6. local unit pathlist
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7. global unit pathlist }
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fnd:=false;
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if not onlysource then
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begin
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fnd:=PPUSearchPath('.');
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if (not fnd) and (outputpath^<>'') then
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fnd:=PPUSearchPath(outputpath^);
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end;
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if (not fnd) and (sourcefn^<>'') then
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begin
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{ the full filename is specified so we can't use here the
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searchpath (PFV) }
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Message1(unit_t_unitsearch,AddExtension(sourcefn^,sourceext));
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fnd:=FindFile(AddExtension(sourcefn^,sourceext),'',hs);
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if not fnd then
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begin
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Message1(unit_t_unitsearch,AddExtension(sourcefn^,pasext));
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fnd:=FindFile(AddExtension(sourcefn^,pasext),'',hs);
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end;
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if not fnd and ((m_mac in aktmodeswitches) or target_info.p_ext_support) then
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begin
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Message1(unit_t_unitsearch,AddExtension(sourcefn^,pext));
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fnd:=FindFile(AddExtension(sourcefn^,pext),'',hs);
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end;
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if fnd then
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begin
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sources_avail:=true;
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do_compile:=true;
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recompile_reason:=rr_noppu;
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stringdispose(mainsource);
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mainsource:=StringDup(hs);
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SetFileName(hs,false);
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end;
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end;
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if not fnd then
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fnd:=SourceSearchPath('.');
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if (not fnd) and Assigned(Loaded_From) then
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begin
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fnd:=PPUSearchPath(Loaded_From.Path^);
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if not fnd then
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fnd:=SourceSearchPath(Loaded_From.Path^);
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if not fnd then
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fnd:=SearchPathList(Loaded_From.LocalUnitSearchPath);
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end;
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if not fnd then
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fnd:=SearchPathList(UnitSearchPath);
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{ try to find a file with the first 8 chars of the modulename, like
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dos }
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if (not fnd) and (length(filename)>8) then
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begin
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filename:=copy(filename,1,8);
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fnd:=SearchPath('.');
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if (not fnd) then
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fnd:=SearchPathList(LocalUnitSearchPath);
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if not fnd then
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fnd:=SearchPathList(UnitSearchPath);
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end;
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search_unit:=fnd;
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end;
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{**********************************
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PPU Reading/Writing Helpers
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***********************************}
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{$IFDEF MACRO_DIFF_HINT}
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var
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is_initial: Boolean;
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procedure tppumodule.writeusedmacro(p:TNamedIndexItem;arg:pointer);
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begin
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if tmacro(p).is_used or is_initial then
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begin
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ppufile.putstring(p.name);
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ppufile.putbyte(byte(is_initial));
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ppufile.putbyte(byte(tmacro(p).is_used));
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end;
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end;
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procedure tppumodule.writeusedmacros;
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begin
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ppufile.do_crc:=false;
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is_initial:= true;
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initialmacrosymtable.foreach(@writeusedmacro,nil);
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is_initial:= false;
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if assigned(globalmacrosymtable) then
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globalmacrosymtable.foreach(@writeusedmacro,nil);
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localmacrosymtable.foreach(@writeusedmacro,nil);
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ppufile.writeentry(ibusedmacros);
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ppufile.do_crc:=true;
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end;
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{$ENDIF}
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procedure tppumodule.writesourcefiles;
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var
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hp : tinputfile;
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i,j : longint;
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begin
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{ second write the used source files }
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ppufile.do_crc:=false;
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hp:=sourcefiles.files;
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{ write source files directly in good order }
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j:=0;
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while assigned(hp) do
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begin
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inc(j);
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hp:=hp.ref_next;
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end;
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while j>0 do
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begin
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hp:=sourcefiles.files;
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for i:=1 to j-1 do
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hp:=hp.ref_next;
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ppufile.putstring(hp.name^);
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ppufile.putlongint(hp.getfiletime);
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dec(j);
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end;
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ppufile.writeentry(ibsourcefiles);
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ppufile.do_crc:=true;
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end;
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procedure tppumodule.writeusedunit(intf:boolean);
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var
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hp : tused_unit;
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oldcrc : boolean;
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begin
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{ write a reference for each used unit }
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hp:=tused_unit(used_units.first);
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while assigned(hp) do
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begin
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if hp.in_interface=intf then
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begin
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ppufile.putstring(hp.u.realmodulename^);
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{ the checksum should not affect the crc of this unit ! (PFV) }
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oldcrc:=ppufile.do_crc;
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ppufile.do_crc:=false;
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ppufile.putlongint(longint(hp.checksum));
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ppufile.putlongint(longint(hp.interface_checksum));
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ppufile.do_crc:=oldcrc;
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end;
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hp:=tused_unit(hp.next);
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end;
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ppufile.do_interface_crc:=true;
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ppufile.writeentry(ibloadunit);
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end;
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|
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procedure tppumodule.writelinkcontainer(var p:tlinkcontainer;id:byte;strippath:boolean);
|
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var
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hcontainer : tlinkcontainer;
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s : string;
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mask : cardinal;
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begin
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hcontainer:=TLinkContainer.Create;
|
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while not p.empty do
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begin
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s:=p.get(mask);
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if strippath then
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ppufile.putstring(SplitFileName(s))
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else
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ppufile.putstring(s);
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ppufile.putlongint(mask);
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hcontainer.add(s,mask);
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end;
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ppufile.writeentry(id);
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p.Free;
|
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p:=hcontainer;
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end;
|
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|
|
|
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procedure tppumodule.writederefmap;
|
|
var
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i : longint;
|
|
oldcrc : boolean;
|
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begin
|
|
{ This does not influence crc }
|
|
oldcrc:=ppufile.do_crc;
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ppufile.do_crc:=false;
|
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{ The unit map used for resolving }
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ppufile.putlongint(derefmapcnt);
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for i:=0 to derefmapcnt-1 do
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begin
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if not assigned(derefmap[i].u) then
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internalerror(2005011512);
|
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ppufile.putstring(derefmap[i].u.modulename^)
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end;
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ppufile.writeentry(ibderefmap);
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ppufile.do_crc:=oldcrc;
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end;
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|
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|
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procedure tppumodule.writederefdata;
|
|
var
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oldcrc : boolean;
|
|
len,hlen : longint;
|
|
buf : array[0..1023] of byte;
|
|
begin
|
|
if derefdataintflen>derefdata.size then
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internalerror(200310223);
|
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derefdata.seek(0);
|
|
{ Write interface data }
|
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len:=derefdataintflen;
|
|
while (len>0) do
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begin
|
|
if len>1024 then
|
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hlen:=1024
|
|
else
|
|
hlen:=len;
|
|
derefdata.read(buf,hlen);
|
|
ppufile.putdata(buf,hlen);
|
|
dec(len,hlen);
|
|
end;
|
|
{ Write implementation data, this does not influence crc }
|
|
oldcrc:=ppufile.do_crc;
|
|
ppufile.do_crc:=false;
|
|
len:=derefdata.size-derefdataintflen;
|
|
while (len>0) do
|
|
begin
|
|
if len>1024 then
|
|
hlen:=1024
|
|
else
|
|
hlen:=len;
|
|
derefdata.read(buf,hlen);
|
|
ppufile.putdata(buf,hlen);
|
|
dec(len,hlen);
|
|
end;
|
|
if derefdata.pos<>derefdata.size then
|
|
internalerror(200310224);
|
|
ppufile.do_crc:=oldcrc;
|
|
ppufile.writeentry(ibderefdata);
|
|
end;
|
|
|
|
|
|
procedure tppumodule.putasmsymbol_in_idx(s:tnamedindexitem;arg:pointer);
|
|
begin
|
|
if tasmsymbol(s).ppuidx<>-1 then
|
|
librarydata.asmsymbolidx^[tasmsymbol(s).ppuidx-1]:=tasmsymbol(s);
|
|
end;
|
|
|
|
|
|
procedure tppumodule.writeasmsymbols;
|
|
var
|
|
s : tasmsymbol;
|
|
i : longint;
|
|
asmsymtype : byte;
|
|
begin
|
|
{ get an ordered list of all symbols to put in the ppu }
|
|
getmem(librarydata.asmsymbolidx,librarydata.asmsymbolppuidx*sizeof(pointer));
|
|
fillchar(librarydata.asmsymbolidx^,librarydata.asmsymbolppuidx*sizeof(pointer),0);
|
|
librarydata.symbolsearch.foreach(@putasmsymbol_in_idx,nil);
|
|
{ write the number of symbols }
|
|
ppufile.putlongint(librarydata.asmsymbolppuidx);
|
|
{ write the symbols from the indexed list to the ppu }
|
|
for i:=1 to librarydata.asmsymbolppuidx do
|
|
begin
|
|
s:=librarydata.asmsymbolidx^[i-1];
|
|
if not assigned(s) then
|
|
internalerror(200208071);
|
|
if s.Classtype=tasmlabel then
|
|
asmsymtype:=2
|
|
else
|
|
asmsymtype:=1;
|
|
ppufile.putbyte(asmsymtype);
|
|
case asmsymtype of
|
|
1 :
|
|
ppufile.putstring(s.name);
|
|
2 :
|
|
begin
|
|
ppufile.putbyte(byte(tasmlabel(s).labeltype));
|
|
ppufile.putlongint(tasmlabel(s).labelnr);
|
|
end;
|
|
end;
|
|
ppufile.putbyte(byte(s.defbind));
|
|
ppufile.putbyte(byte(s.typ));
|
|
end;
|
|
ppufile.writeentry(ibasmsymbols);
|
|
end;
|
|
|
|
{$IFDEF MACRO_DIFF_HINT}
|
|
|
|
{
|
|
Define MACRO_DIFF_HINT for the whole compiler (and ppudump)
|
|
to turn this facility on. Also the hint messages defined
|
|
below must be commented in in the msg/errore.msg file.
|
|
|
|
There is some problems with this, thats why it is shut off:
|
|
|
|
At the first compilation, consider a macro which is not initially
|
|
defined, but it is used (e g the check that it is undefined is true).
|
|
Since it do not exist, there is no macro object where the is_used
|
|
flag can be set. Later on when the macro is defined, and the ppu
|
|
is opened, the check cannot detect this.
|
|
|
|
Also, in which macro object should this flag be set ? It cant be set
|
|
for macros in the initialmacrosymboltable since this table is shared
|
|
between different files.
|
|
}
|
|
|
|
procedure tppumodule.readusedmacros;
|
|
var
|
|
hs : string;
|
|
mac : tmacro;
|
|
was_initial,
|
|
was_used : boolean;
|
|
{Reads macros which was defined or used when the module was compiled.
|
|
This is done when a ppu file is open, before it possibly is parsed.}
|
|
begin
|
|
while not ppufile.endofentry do
|
|
begin
|
|
hs:=ppufile.getstring;
|
|
was_initial:=boolean(ppufile.getbyte);
|
|
was_used:=boolean(ppufile.getbyte);
|
|
mac:=tmacro(initialmacrosymtable.search(hs));
|
|
if assigned(mac) then
|
|
begin
|
|
{$ifndef EXTDEBUG}
|
|
{ if we don't have the sources why tell }
|
|
if sources_avail then
|
|
{$endif ndef EXTDEBUG}
|
|
if (not was_initial) and was_used then
|
|
Message2(unit_h_cond_not_set_in_last_compile,hs,mainsource^);
|
|
end
|
|
else { not assigned }
|
|
if was_initial and
|
|
was_used then
|
|
Message2(unit_h_cond_set_in_last_compile,hs,mainsource^);
|
|
end;
|
|
end;
|
|
{$ENDIF}
|
|
|
|
procedure tppumodule.readsourcefiles;
|
|
var
|
|
temp,hs : string;
|
|
temp_dir : string;
|
|
main_dir : string;
|
|
found,
|
|
is_main : boolean;
|
|
orgfiletime,
|
|
source_time : longint;
|
|
hp : tinputfile;
|
|
begin
|
|
sources_avail:=true;
|
|
is_main:=true;
|
|
main_dir:='';
|
|
while not ppufile.endofentry do
|
|
begin
|
|
hs:=ppufile.getstring;
|
|
orgfiletime:=ppufile.getlongint;
|
|
temp_dir:='';
|
|
if (flags and uf_in_library)<>0 then
|
|
begin
|
|
sources_avail:=false;
|
|
temp:=' library';
|
|
end
|
|
else if pos('Macro ',hs)=1 then
|
|
begin
|
|
{ we don't want to find this file }
|
|
{ but there is a problem with file indexing !! }
|
|
temp:='';
|
|
end
|
|
else
|
|
begin
|
|
{ check the date of the source files:
|
|
1 path of ppu
|
|
2 path of main source
|
|
3 current dir
|
|
4 include/unit path }
|
|
Source_Time:=GetNamedFileTime(path^+hs);
|
|
found:=false;
|
|
if Source_Time<>-1 then
|
|
hs:=path^+hs
|
|
else
|
|
if not(is_main) then
|
|
begin
|
|
Source_Time:=GetNamedFileTime(main_dir+hs);
|
|
if Source_Time<>-1 then
|
|
hs:=main_dir+hs;
|
|
end;
|
|
if Source_Time=-1 then
|
|
Source_Time:=GetNamedFileTime(hs);
|
|
if (Source_Time=-1) then
|
|
begin
|
|
if is_main then
|
|
found:=unitsearchpath.FindFile(hs,temp_dir)
|
|
else
|
|
found:=includesearchpath.FindFile(hs,temp_dir);
|
|
if found then
|
|
begin
|
|
Source_Time:=GetNamedFileTime(temp_dir);
|
|
if Source_Time<>-1 then
|
|
hs:=temp_dir;
|
|
end;
|
|
end;
|
|
if Source_Time<>-1 then
|
|
begin
|
|
if is_main then
|
|
main_dir:=splitpath(hs);
|
|
temp:=' time '+filetimestring(source_time);
|
|
if (orgfiletime<>-1) and
|
|
(source_time<>orgfiletime) then
|
|
begin
|
|
if ((flags and uf_release)=0) then
|
|
begin
|
|
do_compile:=true;
|
|
recompile_reason:=rr_sourcenewer;
|
|
end
|
|
else
|
|
Message2(unit_h_source_modified,hs,ppufilename^);
|
|
temp:=temp+' *';
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
sources_avail:=false;
|
|
temp:=' not found';
|
|
end;
|
|
hp:=tinputfile.create(hs);
|
|
{ the indexing is wrong here PM }
|
|
sourcefiles.register_file(hp);
|
|
end;
|
|
if is_main then
|
|
begin
|
|
stringdispose(mainsource);
|
|
mainsource:=stringdup(hs);
|
|
end;
|
|
Message1(unit_u_ppu_source,hs+temp);
|
|
is_main:=false;
|
|
end;
|
|
{ check if we want to rebuild every unit, only if the sources are
|
|
available }
|
|
if do_build and sources_avail and
|
|
((flags and uf_release)=0) then
|
|
begin
|
|
do_compile:=true;
|
|
recompile_reason:=rr_build;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.readloadunit;
|
|
var
|
|
hs : string;
|
|
pu : tused_unit;
|
|
hp : tppumodule;
|
|
intfchecksum,
|
|
checksum : cardinal;
|
|
begin
|
|
while not ppufile.endofentry do
|
|
begin
|
|
hs:=ppufile.getstring;
|
|
checksum:=cardinal(ppufile.getlongint);
|
|
intfchecksum:=cardinal(ppufile.getlongint);
|
|
{ set the state of this unit before registering, this is
|
|
needed for a correct circular dependency check }
|
|
hp:=registerunit(self,hs,'');
|
|
pu:=addusedunit(hp,false,nil);
|
|
pu.checksum:=checksum;
|
|
pu.interface_checksum:=intfchecksum;
|
|
end;
|
|
in_interface:=false;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.readlinkcontainer(var p:tlinkcontainer);
|
|
var
|
|
s : string;
|
|
m : longint;
|
|
begin
|
|
while not ppufile.endofentry do
|
|
begin
|
|
s:=ppufile.getstring;
|
|
m:=ppufile.getlongint;
|
|
p.add(s,m);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.readderefmap;
|
|
var
|
|
i : longint;
|
|
begin
|
|
{ Load unit map used for resolving }
|
|
derefmapsize:=ppufile.getlongint;
|
|
getmem(derefmap,derefmapsize*sizeof(tderefmaprec));
|
|
fillchar(derefmap^,derefmapsize*sizeof(tderefmaprec),0);
|
|
for i:=0 to derefmapsize-1 do
|
|
derefmap[i].modulename:=stringdup(ppufile.getstring);
|
|
end;
|
|
|
|
|
|
procedure tppumodule.readderefdata;
|
|
var
|
|
len,hlen : longint;
|
|
buf : array[0..1023] of byte;
|
|
begin
|
|
len:=ppufile.entrysize;
|
|
while (len>0) do
|
|
begin
|
|
if len>1024 then
|
|
hlen:=1024
|
|
else
|
|
hlen:=len;
|
|
ppufile.getdata(buf,hlen);
|
|
derefdata.write(buf,hlen);
|
|
dec(len,hlen);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.readasmsymbols;
|
|
var
|
|
labelnr,
|
|
i : longint;
|
|
name : string;
|
|
labeltype : tasmlabeltype;
|
|
bind : TAsmSymBind;
|
|
typ : TAsmSymType;
|
|
asmsymtype : byte;
|
|
begin
|
|
librarydata.asmsymbolppuidx:=ppufile.getlongint;
|
|
if librarydata.asmsymbolppuidx>0 then
|
|
begin
|
|
getmem(librarydata.asmsymbolidx,librarydata.asmsymbolppuidx*sizeof(pointer));
|
|
fillchar(librarydata.asmsymbolidx^,librarydata.asmsymbolppuidx*sizeof(pointer),0);
|
|
for i:=1 to librarydata.asmsymbolppuidx do
|
|
begin
|
|
asmsymtype:=ppufile.getbyte;
|
|
case asmsymtype of
|
|
1 :
|
|
name:=ppufile.getstring;
|
|
2 :
|
|
begin
|
|
labeltype:=tasmlabeltype(ppufile.getbyte);
|
|
labelnr:=ppufile.getlongint;
|
|
end;
|
|
else
|
|
internalerror(200208192);
|
|
end;
|
|
bind:=tasmsymbind(ppufile.getbyte);
|
|
typ:=tasmsymtype(ppufile.getbyte);
|
|
case asmsymtype of
|
|
1 :
|
|
librarydata.asmsymbolidx^[i-1]:=librarydata.newasmsymbol(name,bind,typ);
|
|
2 :
|
|
librarydata.asmsymbolidx^[i-1]:=librarydata.newasmlabel(labelnr,labeltype,(typ=AT_DATA));
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.load_interface;
|
|
var
|
|
b : byte;
|
|
newmodulename : string;
|
|
begin
|
|
{ read interface part }
|
|
repeat
|
|
b:=ppufile.readentry;
|
|
case b of
|
|
ibmodulename :
|
|
begin
|
|
newmodulename:=ppufile.getstring;
|
|
if (cs_check_unit_name in aktglobalswitches) and
|
|
(upper(newmodulename)<>modulename^) then
|
|
Message2(unit_f_unit_name_error,realmodulename^,newmodulename);
|
|
stringdispose(modulename);
|
|
stringdispose(realmodulename);
|
|
modulename:=stringdup(upper(newmodulename));
|
|
realmodulename:=stringdup(newmodulename);
|
|
end;
|
|
ibsourcefiles :
|
|
readsourcefiles;
|
|
{$IFDEF MACRO_DIFF_HINT}
|
|
ibusedmacros :
|
|
readusedmacros;
|
|
{$ENDIF}
|
|
ibloadunit :
|
|
readloadunit;
|
|
iblinkunitofiles :
|
|
readlinkcontainer(LinkUnitOFiles);
|
|
iblinkunitstaticlibs :
|
|
readlinkcontainer(LinkUnitStaticLibs);
|
|
iblinkunitsharedlibs :
|
|
readlinkcontainer(LinkUnitSharedLibs);
|
|
iblinkotherofiles :
|
|
readlinkcontainer(LinkotherOFiles);
|
|
iblinkotherstaticlibs :
|
|
readlinkcontainer(LinkotherStaticLibs);
|
|
iblinkothersharedlibs :
|
|
readlinkcontainer(LinkotherSharedLibs);
|
|
ibderefmap :
|
|
readderefmap;
|
|
ibderefdata :
|
|
readderefdata;
|
|
ibendinterface :
|
|
break;
|
|
else
|
|
Message1(unit_f_ppu_invalid_entry,tostr(b));
|
|
end;
|
|
{ we can already stop when we know that we must recompile }
|
|
if do_compile then
|
|
exit;
|
|
until false;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.load_implementation;
|
|
var
|
|
b : byte;
|
|
begin
|
|
{ read implementation part }
|
|
repeat
|
|
b:=ppufile.readentry;
|
|
case b of
|
|
ibloadunit :
|
|
readloadunit;
|
|
ibasmsymbols :
|
|
readasmsymbols;
|
|
ibendimplementation :
|
|
break;
|
|
else
|
|
Message1(unit_f_ppu_invalid_entry,tostr(b));
|
|
end;
|
|
until false;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.load_symtable_refs;
|
|
var
|
|
b : byte;
|
|
i : longint;
|
|
begin
|
|
if (flags and uf_has_browser)<>0 then
|
|
begin
|
|
tstoredsymtable(globalsymtable).load_references(ppufile,true);
|
|
for i:=0 to unitmapsize-1 do
|
|
tstoredsymtable(globalsymtable).load_references(ppufile,false);
|
|
b:=ppufile.readentry;
|
|
if b<>ibendbrowser then
|
|
Message1(unit_f_ppu_invalid_entry,tostr(b));
|
|
end;
|
|
if ((flags and uf_local_browser)<>0) then
|
|
tstaticsymtable(localsymtable).load_references(ppufile,true);
|
|
end;
|
|
|
|
|
|
procedure tppumodule.writeppu;
|
|
var
|
|
pu : tused_unit;
|
|
begin
|
|
Message1(unit_u_ppu_write,realmodulename^);
|
|
|
|
{ create unit flags }
|
|
if cs_browser in aktmoduleswitches then
|
|
flags:=flags or uf_has_browser;
|
|
if cs_local_browser in aktmoduleswitches then
|
|
flags:=flags or uf_local_browser;
|
|
if do_release then
|
|
flags:=flags or uf_release;
|
|
if assigned(localsymtable) then
|
|
flags:=flags or uf_local_symtable;
|
|
{$ifdef cpufpemu}
|
|
if (cs_fp_emulation in aktmoduleswitches) then
|
|
flags:=flags or uf_fpu_emulation;
|
|
{$endif cpufpemu}
|
|
{$ifdef Test_Double_checksum_write}
|
|
Assign(CRCFile,s+'.IMP');
|
|
Rewrite(CRCFile);
|
|
{$endif def Test_Double_checksum_write}
|
|
|
|
{ create new ppufile }
|
|
ppufile:=tcompilerppufile.create(ppufilename^);
|
|
if not ppufile.createfile then
|
|
Message(unit_f_ppu_cannot_write);
|
|
|
|
{ first the unitname }
|
|
ppufile.putstring(realmodulename^);
|
|
ppufile.writeentry(ibmodulename);
|
|
|
|
writesourcefiles;
|
|
{$IFDEF MACRO_DIFF_HINT}
|
|
writeusedmacros;
|
|
{$ENDIF}
|
|
|
|
{ write interface uses }
|
|
writeusedunit(true);
|
|
|
|
{ write the objectfiles and libraries that come for this unit,
|
|
preserve the containers becuase they are still needed to load
|
|
the link.res. All doesn't depend on the crc! It doesn't matter
|
|
if a unit is in a .o or .a file }
|
|
ppufile.do_crc:=false;
|
|
writelinkcontainer(linkunitofiles,iblinkunitofiles,true);
|
|
writelinkcontainer(linkunitstaticlibs,iblinkunitstaticlibs,true);
|
|
writelinkcontainer(linkunitsharedlibs,iblinkunitsharedlibs,true);
|
|
writelinkcontainer(linkotherofiles,iblinkotherofiles,false);
|
|
writelinkcontainer(linkotherstaticlibs,iblinkotherstaticlibs,true);
|
|
writelinkcontainer(linkothersharedlibs,iblinkothersharedlibs,true);
|
|
ppufile.do_crc:=true;
|
|
|
|
{ generate implementation deref data, the interface deref data is
|
|
already generated when calculating the interface crc }
|
|
if (cs_compilesystem in aktmoduleswitches) then
|
|
begin
|
|
tstoredsymtable(globalsymtable).buildderef;
|
|
derefdataintflen:=derefdata.size;
|
|
end;
|
|
tstoredsymtable(globalsymtable).buildderefimpl;
|
|
if (flags and uf_local_symtable)<>0 then
|
|
begin
|
|
tstoredsymtable(localsymtable).buildderef;
|
|
tstoredsymtable(localsymtable).buildderefimpl;
|
|
end;
|
|
writederefmap;
|
|
writederefdata;
|
|
|
|
ppufile.writeentry(ibendinterface);
|
|
|
|
{ write the symtable entries }
|
|
tstoredsymtable(globalsymtable).ppuwrite(ppufile);
|
|
|
|
if assigned(globalmacrosymtable) and (globalmacrosymtable.symindex.count > 0) then
|
|
begin
|
|
ppufile.putbyte(byte(true));
|
|
ppufile.writeentry(ibexportedmacros);
|
|
tstoredsymtable(globalmacrosymtable).ppuwrite(ppufile);
|
|
end
|
|
else
|
|
begin
|
|
ppufile.putbyte(byte(false));
|
|
ppufile.writeentry(ibexportedmacros);
|
|
end;
|
|
|
|
{ everything after this doesn't affect the crc }
|
|
ppufile.do_crc:=false;
|
|
|
|
{ write implementation uses }
|
|
writeusedunit(false);
|
|
|
|
{ write asmsymbols }
|
|
writeasmsymbols;
|
|
|
|
{ end of implementation }
|
|
ppufile.writeentry(ibendimplementation);
|
|
|
|
{ write static symtable
|
|
needed for local debugging of unit functions }
|
|
if (flags and uf_local_symtable)<>0 then
|
|
tstoredsymtable(localsymtable).ppuwrite(ppufile);
|
|
|
|
{ write all browser section }
|
|
if (flags and uf_has_browser)<>0 then
|
|
begin
|
|
tstoredsymtable(globalsymtable).write_references(ppufile,true);
|
|
pu:=tused_unit(used_units.first);
|
|
while assigned(pu) do
|
|
begin
|
|
tstoredsymtable(pu.u.globalsymtable).write_references(ppufile,false);
|
|
pu:=tused_unit(pu.next);
|
|
end;
|
|
ppufile.writeentry(ibendbrowser);
|
|
end;
|
|
if ((flags and uf_local_browser)<>0) then
|
|
begin
|
|
if not assigned(localsymtable) then
|
|
internalerror(200408271);
|
|
tstaticsymtable(localsymtable).write_references(ppufile,true);
|
|
end;
|
|
|
|
{ the last entry ibend is written automaticly }
|
|
|
|
{ flush to be sure }
|
|
ppufile.flush;
|
|
{ create and write header }
|
|
ppufile.header.size:=ppufile.size;
|
|
ppufile.header.checksum:=ppufile.crc;
|
|
ppufile.header.interface_checksum:=ppufile.interface_crc;
|
|
ppufile.header.compiler:=wordversion;
|
|
ppufile.header.cpu:=word(target_cpu);
|
|
ppufile.header.target:=word(target_info.system);
|
|
ppufile.header.flags:=flags;
|
|
ppufile.writeheader;
|
|
|
|
{ save crc in current module also }
|
|
crc:=ppufile.crc;
|
|
interface_crc:=ppufile.interface_crc;
|
|
|
|
{$ifdef Test_Double_checksum_write}
|
|
close(CRCFile);
|
|
{$endif Test_Double_checksum_write}
|
|
|
|
ppufile.closefile;
|
|
ppufile.free;
|
|
ppufile:=nil;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.getppucrc;
|
|
begin
|
|
{$ifdef Test_Double_checksum_write}
|
|
Assign(CRCFile,s+'.INT')
|
|
Rewrite(CRCFile);
|
|
{$endif def Test_Double_checksum_write}
|
|
|
|
{ create new ppufile }
|
|
ppufile:=tcompilerppufile.create(ppufilename^);
|
|
ppufile.crc_only:=true;
|
|
if not ppufile.createfile then
|
|
Message(unit_f_ppu_cannot_write);
|
|
|
|
{ first the unitname }
|
|
ppufile.putstring(realmodulename^);
|
|
ppufile.writeentry(ibmodulename);
|
|
|
|
{ the interface units affect the crc }
|
|
writeusedunit(true);
|
|
|
|
{ deref data of interface that affect the crc }
|
|
derefdata.reset;
|
|
tstoredsymtable(globalsymtable).buildderef;
|
|
derefdataintflen:=derefdata.size;
|
|
writederefmap;
|
|
writederefdata;
|
|
|
|
ppufile.writeentry(ibendinterface);
|
|
|
|
{ write the symtable entries }
|
|
tstoredsymtable(globalsymtable).ppuwrite(ppufile);
|
|
|
|
if assigned(globalmacrosymtable) and (globalmacrosymtable.symindex.count > 0) then
|
|
begin
|
|
ppufile.putbyte(byte(true));
|
|
ppufile.writeentry(ibexportedmacros);
|
|
tstoredsymtable(globalmacrosymtable).ppuwrite(ppufile);
|
|
end
|
|
else
|
|
begin
|
|
ppufile.putbyte(byte(false));
|
|
ppufile.writeentry(ibexportedmacros);
|
|
end;
|
|
|
|
{ save crc }
|
|
crc:=ppufile.crc;
|
|
interface_crc:=ppufile.interface_crc;
|
|
|
|
{ end of implementation, to generate a correct ppufile
|
|
for ppudump when using INTFPPU define }
|
|
ppufile.writeentry(ibendimplementation);
|
|
|
|
{$ifdef Test_Double_checksum}
|
|
crc_array:=ppufile.crc_test;
|
|
ppufile.crc_test:=nil;
|
|
crc_size:=ppufile.crc_index2;
|
|
crc_array2:=ppufile.crc_test2;
|
|
ppufile.crc_test2:=nil;
|
|
crc_size2:=ppufile.crc_index2;
|
|
{$endif Test_Double_checksum}
|
|
|
|
{$ifdef Test_Double_checksum_write}
|
|
close(CRCFile);
|
|
{$endif Test_Double_checksum_write}
|
|
|
|
{ create and write header, this will only be used
|
|
for debugging purposes }
|
|
ppufile.header.size:=ppufile.size;
|
|
ppufile.header.checksum:=ppufile.crc;
|
|
ppufile.header.interface_checksum:=ppufile.interface_crc;
|
|
ppufile.header.compiler:=wordversion;
|
|
ppufile.header.cpu:=word(target_cpu);
|
|
ppufile.header.target:=word(target_info.system);
|
|
ppufile.header.flags:=flags;
|
|
ppufile.writeheader;
|
|
|
|
ppufile.closefile;
|
|
ppufile.free;
|
|
ppufile:=nil;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.load_usedunits;
|
|
var
|
|
pu : tused_unit;
|
|
load_refs : boolean;
|
|
oldobjectlibrary : tasmlibrarydata;
|
|
begin
|
|
if current_module<>self then
|
|
internalerror(200212284);
|
|
load_refs:=true;
|
|
|
|
{ load the used units from interface }
|
|
in_interface:=true;
|
|
pu:=tused_unit(used_units.first);
|
|
while assigned(pu) do
|
|
begin
|
|
if pu.in_interface then
|
|
begin
|
|
tppumodule(pu.u).loadppu;
|
|
{ if this unit is compiled we can stop }
|
|
if state=ms_compiled then
|
|
exit;
|
|
{ add this unit to the dependencies }
|
|
pu.u.adddependency(self);
|
|
{ need to recompile the current unit, check the interface
|
|
crc. And when not compiled with -Ur then check the complete
|
|
crc }
|
|
if (pu.u.interface_crc<>pu.interface_checksum) or
|
|
(
|
|
((ppufile.header.flags and uf_release)=0) and
|
|
(pu.u.crc<>pu.checksum)
|
|
) then
|
|
begin
|
|
Message2(unit_u_recompile_crc_change,realmodulename^,pu.u.realmodulename^);
|
|
recompile_reason:=rr_crcchanged;
|
|
do_compile:=true;
|
|
exit;
|
|
end;
|
|
end;
|
|
pu:=tused_unit(pu.next);
|
|
end;
|
|
|
|
{ ok, now load the interface of this unit }
|
|
if current_module<>self then
|
|
internalerror(200208187);
|
|
globalsymtable:=tglobalsymtable.create(modulename^,moduleid);
|
|
tstoredsymtable(globalsymtable).ppuload(ppufile);
|
|
|
|
if ppufile.readentry<>ibexportedmacros then
|
|
Message(unit_f_ppu_read_error);
|
|
if boolean(ppufile.getbyte) then
|
|
begin
|
|
globalmacrosymtable:=tmacrosymtable.Create(true);
|
|
tstoredsymtable(globalmacrosymtable).ppuload(ppufile)
|
|
end;
|
|
|
|
interface_compiled:=true;
|
|
|
|
{ read the implementation part, containing
|
|
the implementation uses and objectdata }
|
|
in_interface:=false;
|
|
load_implementation;
|
|
|
|
{ now only read the implementation uses }
|
|
pu:=tused_unit(used_units.first);
|
|
while assigned(pu) do
|
|
begin
|
|
if (not pu.in_interface) then
|
|
begin
|
|
tppumodule(pu.u).loadppu;
|
|
{ if this unit is compiled we can stop }
|
|
if state=ms_compiled then
|
|
exit;
|
|
{ add this unit to the dependencies }
|
|
pu.u.adddependency(self);
|
|
{ need to recompile the current unit ? }
|
|
if (pu.u.interface_crc<>pu.interface_checksum) then
|
|
begin
|
|
Message2(unit_u_recompile_crc_change,realmodulename^,pu.u.realmodulename^+' {impl}');
|
|
recompile_reason:=rr_crcchanged;
|
|
do_compile:=true;
|
|
exit;
|
|
end;
|
|
end;
|
|
pu:=tused_unit(pu.next);
|
|
end;
|
|
|
|
{ load implementation symtable }
|
|
if (flags and uf_local_symtable)<>0 then
|
|
begin
|
|
localsymtable:=tstaticsymtable.create(modulename^,moduleid);
|
|
tstaticsymtable(localsymtable).ppuload(ppufile);
|
|
end;
|
|
|
|
{ we can now derefence all pointers to the implementation parts }
|
|
oldobjectlibrary:=objectlibrary;
|
|
objectlibrary:=librarydata;
|
|
tstoredsymtable(globalsymtable).derefimpl;
|
|
if assigned(localsymtable) then
|
|
tstoredsymtable(localsymtable).derefimpl;
|
|
objectlibrary:=oldobjectlibrary;
|
|
|
|
{ load browser info if stored }
|
|
if ((flags and uf_has_browser)<>0) and load_refs then
|
|
begin
|
|
if current_module<>self then
|
|
internalerror(200208188);
|
|
load_symtable_refs;
|
|
end;
|
|
end;
|
|
|
|
|
|
function tppumodule.needrecompile:boolean;
|
|
var
|
|
pu : tused_unit;
|
|
begin
|
|
result:=false;
|
|
pu:=tused_unit(used_units.first);
|
|
while assigned(pu) do
|
|
begin
|
|
{ need to recompile the current unit, check the interface
|
|
crc. And when not compiled with -Ur then check the complete
|
|
crc }
|
|
if (pu.u.interface_crc<>pu.interface_checksum) or
|
|
(
|
|
(pu.in_interface) and
|
|
(pu.u.crc<>pu.checksum)
|
|
) then
|
|
begin
|
|
result:=true;
|
|
exit;
|
|
end;
|
|
pu:=tused_unit(pu.next);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure tppumodule.loadppu;
|
|
const
|
|
ImplIntf : array[boolean] of string[15]=('implementation','interface');
|
|
var
|
|
do_load,
|
|
second_time : boolean;
|
|
old_current_module : tmodule;
|
|
begin
|
|
old_current_module:=current_module;
|
|
Message3(unit_u_load_unit,old_current_module.modulename^,
|
|
ImplIntf[old_current_module.in_interface],
|
|
modulename^);
|
|
|
|
{ Update loaded_from to detect cycles }
|
|
loaded_from:=old_current_module;
|
|
|
|
{ check if the globalsymtable is already available, but
|
|
we must reload when the do_reload flag is set }
|
|
if (not do_reload) and
|
|
assigned(globalsymtable) then
|
|
exit;
|
|
|
|
{ reset }
|
|
do_load:=true;
|
|
second_time:=false;
|
|
current_module:=self;
|
|
SetCompileModule(current_module);
|
|
Fillchar(aktfilepos,0,sizeof(aktfilepos));
|
|
|
|
{ A force reload }
|
|
if do_reload then
|
|
begin
|
|
Message(unit_u_forced_reload);
|
|
do_reload:=false;
|
|
{ When the unit is already loaded or being loaded
|
|
we can maybe skip a complete reload/recompile }
|
|
if assigned(globalsymtable) and
|
|
(not needrecompile) then
|
|
begin
|
|
{ When we don't have any data stored yet there
|
|
is nothing to resolve }
|
|
if interface_compiled then
|
|
begin
|
|
Message1(unit_u_reresolving_unit,modulename^);
|
|
tstoredsymtable(globalsymtable).deref;
|
|
tstoredsymtable(globalsymtable).derefimpl;
|
|
if assigned(localsymtable) then
|
|
begin
|
|
tstoredsymtable(localsymtable).deref;
|
|
tstoredsymtable(localsymtable).derefimpl;
|
|
end;
|
|
end
|
|
else
|
|
Message1(unit_u_skipping_reresolving_unit,modulename^);
|
|
do_load:=false;
|
|
end;
|
|
end;
|
|
|
|
if do_load then
|
|
begin
|
|
{ we are loading a new module, save the state of the scanner
|
|
and reset scanner+module }
|
|
if assigned(current_scanner) then
|
|
current_scanner.tempcloseinputfile;
|
|
current_scanner:=nil;
|
|
|
|
{ loading the unit for a second time? }
|
|
if state=ms_registered then
|
|
state:=ms_load
|
|
else
|
|
begin
|
|
{ try to load the unit a second time first }
|
|
Message1(unit_u_second_load_unit,modulename^);
|
|
Message2(unit_u_previous_state,modulename^,ModuleStateStr[state]);
|
|
{ Flag modules to reload }
|
|
flagdependent(old_current_module);
|
|
{ Reset the module }
|
|
reset;
|
|
if state in [ms_compile,ms_second_compile] then
|
|
begin
|
|
Message1(unit_u_second_compile_unit,modulename^);
|
|
state:=ms_second_compile;
|
|
do_compile:=true;
|
|
end
|
|
else
|
|
state:=ms_second_load;
|
|
second_time:=true;
|
|
end;
|
|
|
|
{ close old_current_ppu on system that are
|
|
short on file handles like DOS PM }
|
|
{$ifdef SHORT_ON_FILE_HANDLES}
|
|
if old_current_module.is_unit and
|
|
assigned(tppumodule(old_current_module).ppufile) then
|
|
tppumodule(old_current_module).ppufile.tempclose;
|
|
{$endif SHORT_ON_FILE_HANDLES}
|
|
|
|
{ try to opening ppu, skip this when we already
|
|
know that we need to compile the unit }
|
|
if not do_compile then
|
|
begin
|
|
Message1(unit_u_loading_unit,modulename^);
|
|
search_unit(false,false);
|
|
if not do_compile then
|
|
begin
|
|
load_interface;
|
|
if not do_compile then
|
|
begin
|
|
load_usedunits;
|
|
if not do_compile then
|
|
Message1(unit_u_finished_loading_unit,modulename^);
|
|
end;
|
|
end;
|
|
{ PPU is not needed anymore }
|
|
if assigned(ppufile) then
|
|
begin
|
|
ppufile.closefile;
|
|
ppufile.free;
|
|
ppufile:=nil;
|
|
end;
|
|
end;
|
|
|
|
{ Do we need to recompile the unit }
|
|
if do_compile then
|
|
begin
|
|
{ recompile the unit or give a fatal error if sources not available }
|
|
if not(sources_avail) then
|
|
begin
|
|
if (not search_unit(true,false)) and
|
|
(length(modulename^)>8) then
|
|
search_unit(true,true);
|
|
if not(sources_avail) then
|
|
begin
|
|
if recompile_reason=rr_noppu then
|
|
Message1(unit_f_cant_find_ppu,realmodulename^)
|
|
else
|
|
Message1(unit_f_cant_compile_unit,realmodulename^);
|
|
end;
|
|
end;
|
|
{ Flag modules to reload }
|
|
flagdependent(old_current_module);
|
|
{ Reset the module }
|
|
reset;
|
|
{ compile this module }
|
|
if not(state in [ms_compile,ms_second_compile]) then
|
|
state:=ms_compile;
|
|
compile(mainsource^);
|
|
end
|
|
else
|
|
state:=ms_compiled;
|
|
|
|
if current_module<>self then
|
|
internalerror(200212282);
|
|
|
|
if in_interface then
|
|
internalerror(200212283);
|
|
|
|
{ for a second_time recompile reload all dependent units,
|
|
for a first time compile register the unit _once_ }
|
|
if second_time then
|
|
reload_flagged_units
|
|
else
|
|
usedunits.concat(tused_unit.create(self,true,false,nil));
|
|
|
|
{ reopen the old module }
|
|
{$ifdef SHORT_ON_FILE_HANDLES}
|
|
if old_current_module.is_unit and
|
|
assigned(tppumodule(old_current_module).ppufile) then
|
|
tppumodule(old_current_module).ppufile.tempopen;
|
|
{$endif SHORT_ON_FILE_HANDLES}
|
|
|
|
{ reload old scanner }
|
|
current_scanner:=tscannerfile(old_current_module.scanner);
|
|
if assigned(current_scanner) then
|
|
begin
|
|
current_scanner.tempopeninputfile;
|
|
current_scanner.gettokenpos
|
|
end
|
|
else
|
|
fillchar(aktfilepos,sizeof(aktfilepos),0);
|
|
end;
|
|
|
|
{ we are back, restore current_module }
|
|
current_module:=old_current_module;
|
|
SetCompileModule(current_module);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
RegisterUnit
|
|
*****************************************************************************}
|
|
|
|
|
|
function registerunit(callermodule:tmodule;const s : stringid;const fn:string) : tppumodule;
|
|
var
|
|
ups : stringid;
|
|
hp : tppumodule;
|
|
hp2 : tmodule;
|
|
begin
|
|
{ Info }
|
|
ups:=upper(s);
|
|
{ search all loaded units }
|
|
hp:=tppumodule(loaded_units.first);
|
|
while assigned(hp) do
|
|
begin
|
|
if hp.modulename^=ups then
|
|
begin
|
|
{ only check for units. The main program is also
|
|
as a unit in the loaded_units list. We simply need
|
|
to ignore this entry (PFV) }
|
|
if hp.is_unit then
|
|
begin
|
|
{ both units in interface ? }
|
|
if callermodule.in_interface and
|
|
hp.in_interface then
|
|
begin
|
|
{ check for a cycle }
|
|
hp2:=callermodule.loaded_from;
|
|
while assigned(hp2) and (hp2<>hp) do
|
|
begin
|
|
if hp2.in_interface then
|
|
hp2:=hp2.loaded_from
|
|
else
|
|
hp2:=nil;
|
|
end;
|
|
if assigned(hp2) then
|
|
Message2(unit_f_circular_unit_reference,callermodule.realmodulename^,hp.realmodulename^);
|
|
end;
|
|
break;
|
|
end;
|
|
end;
|
|
{ the next unit }
|
|
hp:=tppumodule(hp.next);
|
|
end;
|
|
{ the unit is not in the loaded units,
|
|
we create an entry and register the unit }
|
|
if not assigned(hp) then
|
|
begin
|
|
Message1(unit_u_registering_new_unit,Upper(s));
|
|
hp:=tppumodule.create(callermodule,s,fn,true);
|
|
hp.loaded_from:=callermodule;
|
|
addloadedunit(hp);
|
|
end;
|
|
{ return }
|
|
registerunit:=hp;
|
|
end;
|
|
|
|
end.
|