mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-05-02 10:13:42 +02:00
21b3a10f02
+ try to fix temp allocation (still in ifdef) + generic constructor calls + start of tassembler / tmodulebase class cleanup
604 lines
18 KiB
ObjectPascal
604 lines
18 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 1998-2002 by Florian Klaempfl
|
|
|
|
This unit implements the first loading and searching of the modules
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
****************************************************************************
|
|
}
|
|
unit fmodule;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
{$ifdef go32v2}
|
|
{$define shortasmprefix}
|
|
{$endif}
|
|
{$ifdef OS2}
|
|
{ Allthough OS/2 supports long filenames I play it safe and
|
|
use 8.3 filenames, because this allows the compiler to run
|
|
on a FAT partition. (DM) }
|
|
{$define shortasmprefix}
|
|
{$endif}
|
|
|
|
interface
|
|
|
|
uses
|
|
cutils,cclasses,
|
|
globals,finput,
|
|
symbase;
|
|
|
|
const
|
|
maxunits = 1024;
|
|
|
|
type
|
|
trecompile_reason = (rr_unknown,
|
|
rr_noppu,rr_sourcenewer,rr_build,rr_crcchanged
|
|
);
|
|
|
|
TExternalsItem=class(TLinkedListItem)
|
|
public
|
|
found : longbool;
|
|
data : pstring;
|
|
constructor Create(const s:string);
|
|
Destructor Destroy;override;
|
|
end;
|
|
|
|
tlinkcontaineritem=class(tlinkedlistitem)
|
|
public
|
|
data : pstring;
|
|
needlink : cardinal;
|
|
constructor Create(const s:string;m:cardinal);
|
|
destructor Destroy;override;
|
|
end;
|
|
|
|
tlinkcontainer=class(tlinkedlist)
|
|
procedure add(const s : string;m:cardinal);
|
|
function get(var m:cardinal) : string;
|
|
function getusemask(mask:cardinal) : string;
|
|
function find(const s:string):boolean;
|
|
end;
|
|
|
|
{$ifndef NEWMAP}
|
|
tunitmap = array[0..maxunits-1] of pointer;
|
|
punitmap = ^tunitmap;
|
|
{$else NEWMAP}
|
|
tunitmap = array[0..maxunits-1] of tmodule;
|
|
punitmap = ^tunitmap;
|
|
{$endif NEWMAP}
|
|
|
|
tmodule = class(tmodulebase)
|
|
compiled, { unit is already compiled }
|
|
do_reload, { force reloading of the unit }
|
|
do_compile, { need to compile the sources }
|
|
sources_avail, { if all sources are reachable }
|
|
sources_checked, { if there is already done a check for the sources }
|
|
is_unit,
|
|
in_second_compile, { is this unit being compiled for the 2nd time? }
|
|
in_second_load, { is this unit PPU loaded a 2nd time? }
|
|
in_implementation, { processing the implementation part? }
|
|
in_global : boolean; { allow global settings }
|
|
recompile_reason : trecompile_reason; { the reason why the unit should be recompiled }
|
|
crc,
|
|
interface_crc : cardinal;
|
|
flags : cardinal; { the PPU flags }
|
|
islibrary : boolean; { if it is a library (win32 dll) }
|
|
map : punitmap; { mapping of all used units }
|
|
unitcount : longint; { local unit counter }
|
|
globalsymtable, { pointer to the global symtable of this unit }
|
|
localsymtable : tsymtable;{ pointer to the local symtable of this unit }
|
|
scanner : pointer; { scanner object used }
|
|
loaded_from : tmodule;
|
|
uses_imports : boolean; { Set if the module imports from DLL's.}
|
|
imports : tlinkedlist;
|
|
_exports : tlinkedlist;
|
|
externals : tlinkedlist; {Only for DLL scanners by using Unix-style $LINKLIB }
|
|
resourcefiles : tstringlist;
|
|
|
|
linkunitofiles,
|
|
linkunitstaticlibs,
|
|
linkunitsharedlibs,
|
|
linkotherofiles, { objects,libs loaded from the source }
|
|
linkothersharedlibs, { using $L or $LINKLIB or import lib (for linux) }
|
|
linkotherstaticlibs : tlinkcontainer;
|
|
|
|
used_units : tlinkedlist;
|
|
dependent_units : tlinkedlist;
|
|
|
|
localunitsearchpath, { local searchpaths }
|
|
localobjectsearchpath,
|
|
localincludesearchpath,
|
|
locallibrarysearchpath : TSearchPathList;
|
|
|
|
asmprefix : pstring; { prefix for the smartlink asmfiles }
|
|
constructor create(const s:string;_is_unit:boolean);
|
|
destructor destroy;override;
|
|
procedure reset;virtual;
|
|
procedure numberunits;
|
|
end;
|
|
|
|
tused_unit = class(tlinkedlistitem)
|
|
unitid : longint;
|
|
name : pstring;
|
|
realname : pstring;
|
|
checksum,
|
|
interface_checksum : cardinal;
|
|
loaded : boolean;
|
|
in_uses,
|
|
in_interface,
|
|
is_stab_written : boolean;
|
|
u : tmodule;
|
|
constructor create(_u : tmodule;intface:boolean);
|
|
constructor create_to_load(const n:string;c,intfc:cardinal;intface:boolean);
|
|
destructor destroy;override;
|
|
end;
|
|
|
|
tdependent_unit = class(tlinkedlistitem)
|
|
u : tmodule;
|
|
constructor create(_u : tmodule);
|
|
end;
|
|
|
|
var
|
|
main_module : tmodule; { Main module of the program }
|
|
current_module : tmodule; { Current module which is compiled or loaded }
|
|
compiled_module : tmodule; { Current module which is compiled }
|
|
usedunits : tlinkedlist; { Used units for this program }
|
|
loaded_units : tlinkedlist; { All loaded units }
|
|
SmartLinkOFiles : TStringList; { List of .o files which are generated,
|
|
used to delete them after linking }
|
|
|
|
function get_source_file(moduleindex,fileindex : longint) : tinputfile;
|
|
|
|
|
|
implementation
|
|
|
|
uses
|
|
{$ifdef delphi}
|
|
dmisc,
|
|
{$else}
|
|
dos,
|
|
{$endif}
|
|
verbose,systems,
|
|
scanner;
|
|
|
|
|
|
{*****************************************************************************
|
|
Global Functions
|
|
*****************************************************************************}
|
|
|
|
function get_source_file(moduleindex,fileindex : longint) : tinputfile;
|
|
var
|
|
hp : tmodule;
|
|
begin
|
|
hp:=tmodule(loaded_units.first);
|
|
while assigned(hp) and (hp.unit_index<>moduleindex) do
|
|
hp:=tmodule(hp.next);
|
|
if assigned(hp) then
|
|
get_source_file:=hp.sourcefiles.get_file(fileindex)
|
|
else
|
|
get_source_file:=nil;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TLinkContainerItem
|
|
****************************************************************************}
|
|
|
|
constructor TLinkContainerItem.Create(const s:string;m:cardinal);
|
|
begin
|
|
inherited Create;
|
|
data:=stringdup(s);
|
|
needlink:=m;
|
|
end;
|
|
|
|
|
|
destructor TLinkContainerItem.Destroy;
|
|
begin
|
|
stringdispose(data);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TLinkContainer
|
|
****************************************************************************}
|
|
|
|
procedure TLinkContainer.add(const s : string;m:cardinal);
|
|
begin
|
|
inherited concat(TLinkContainerItem.Create(s,m));
|
|
end;
|
|
|
|
|
|
function TLinkContainer.get(var m:cardinal) : string;
|
|
var
|
|
p : tlinkcontaineritem;
|
|
begin
|
|
p:=tlinkcontaineritem(inherited getfirst);
|
|
if p=nil then
|
|
begin
|
|
get:='';
|
|
m:=0;
|
|
end
|
|
else
|
|
begin
|
|
get:=p.data^;
|
|
m:=p.needlink;
|
|
p.free;
|
|
end;
|
|
end;
|
|
|
|
|
|
function TLinkContainer.getusemask(mask:cardinal) : string;
|
|
var
|
|
p : tlinkcontaineritem;
|
|
found : boolean;
|
|
begin
|
|
found:=false;
|
|
repeat
|
|
p:=tlinkcontaineritem(inherited getfirst);
|
|
if p=nil then
|
|
begin
|
|
getusemask:='';
|
|
exit;
|
|
end;
|
|
getusemask:=p.data^;
|
|
found:=(p.needlink and mask)<>0;
|
|
p.free;
|
|
until found;
|
|
end;
|
|
|
|
|
|
function TLinkContainer.find(const s:string):boolean;
|
|
var
|
|
newnode : tlinkcontaineritem;
|
|
begin
|
|
find:=false;
|
|
newnode:=tlinkcontaineritem(First);
|
|
while assigned(newnode) do
|
|
begin
|
|
if newnode.data^=s then
|
|
begin
|
|
find:=true;
|
|
exit;
|
|
end;
|
|
newnode:=tlinkcontaineritem(newnode.next);
|
|
end;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TExternalsItem
|
|
****************************************************************************}
|
|
|
|
constructor tExternalsItem.Create(const s:string);
|
|
begin
|
|
inherited Create;
|
|
found:=false;
|
|
data:=stringdup(s);
|
|
end;
|
|
|
|
|
|
destructor tExternalsItem.Destroy;
|
|
begin
|
|
stringdispose(data);
|
|
inherited;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TUSED_UNIT
|
|
****************************************************************************}
|
|
|
|
constructor tused_unit.create(_u : tmodule;intface:boolean);
|
|
begin
|
|
u:=_u;
|
|
in_interface:=intface;
|
|
in_uses:=false;
|
|
is_stab_written:=false;
|
|
loaded:=true;
|
|
name:=stringdup(_u.modulename^);
|
|
realname:=stringdup(_u.realmodulename^);
|
|
checksum:=_u.crc;
|
|
interface_checksum:=_u.interface_crc;
|
|
unitid:=0;
|
|
end;
|
|
|
|
|
|
constructor tused_unit.create_to_load(const n:string;c,intfc:cardinal;intface:boolean);
|
|
begin
|
|
u:=nil;
|
|
in_interface:=intface;
|
|
in_uses:=false;
|
|
is_stab_written:=false;
|
|
loaded:=false;
|
|
name:=stringdup(upper(n));
|
|
realname:=stringdup(n);
|
|
checksum:=c;
|
|
interface_checksum:=intfc;
|
|
unitid:=0;
|
|
end;
|
|
|
|
|
|
destructor tused_unit.destroy;
|
|
begin
|
|
stringdispose(realname);
|
|
stringdispose(name);
|
|
inherited destroy;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TDENPENDENT_UNIT
|
|
****************************************************************************}
|
|
|
|
constructor tdependent_unit.create(_u : tmodule);
|
|
begin
|
|
u:=_u;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TMODULE
|
|
****************************************************************************}
|
|
|
|
constructor tmodule.create(const s:string;_is_unit:boolean);
|
|
var
|
|
p : dirstr;
|
|
n : namestr;
|
|
e : extstr;
|
|
begin
|
|
FSplit(s,p,n,e);
|
|
{ Programs have the name 'Program' to don't conflict with dup id's }
|
|
if _is_unit then
|
|
inherited create(n)
|
|
else
|
|
inherited create('Program');
|
|
mainsource:=stringdup(s);
|
|
{ Dos has the famous 8.3 limit :( }
|
|
{$ifdef shortasmprefix}
|
|
asmprefix:=stringdup(FixFileName('as'));
|
|
{$else}
|
|
asmprefix:=stringdup(FixFileName(n));
|
|
{$endif}
|
|
setfilename(p+n,true);
|
|
localunitsearchpath:=TSearchPathList.Create;
|
|
localobjectsearchpath:=TSearchPathList.Create;
|
|
localincludesearchpath:=TSearchPathList.Create;
|
|
locallibrarysearchpath:=TSearchPathList.Create;
|
|
used_units:=TLinkedList.Create;
|
|
dependent_units:=TLinkedList.Create;
|
|
resourcefiles:=TStringList.Create;
|
|
linkunitofiles:=TLinkContainer.Create;
|
|
linkunitstaticlibs:=TLinkContainer.Create;
|
|
linkunitsharedlibs:=TLinkContainer.Create;
|
|
linkotherofiles:=TLinkContainer.Create;
|
|
linkotherstaticlibs:=TLinkContainer.Create;
|
|
linkothersharedlibs:=TLinkContainer.Create;
|
|
crc:=0;
|
|
interface_crc:=0;
|
|
flags:=0;
|
|
scanner:=nil;
|
|
map:=nil;
|
|
globalsymtable:=nil;
|
|
localsymtable:=nil;
|
|
loaded_from:=nil;
|
|
do_reload:=false;
|
|
unitcount:=1;
|
|
do_compile:=false;
|
|
sources_avail:=true;
|
|
sources_checked:=false;
|
|
compiled:=false;
|
|
recompile_reason:=rr_unknown;
|
|
in_second_load:=false;
|
|
in_second_compile:=false;
|
|
in_implementation:=false;
|
|
in_global:=true;
|
|
is_unit:=_is_unit;
|
|
islibrary:=false;
|
|
uses_imports:=false;
|
|
imports:=TLinkedList.Create;
|
|
_exports:=TLinkedList.Create;
|
|
externals:=TLinkedList.Create;
|
|
end;
|
|
|
|
|
|
destructor tmodule.Destroy;
|
|
{$ifdef MEMDEBUG}
|
|
var
|
|
d : tmemdebug;
|
|
{$endif}
|
|
begin
|
|
if assigned(map) then
|
|
dispose(map);
|
|
if assigned(imports) then
|
|
imports.free;
|
|
imports:=nil;
|
|
if assigned(_exports) then
|
|
_exports.free;
|
|
_exports:=nil;
|
|
if assigned(externals) then
|
|
externals.free;
|
|
externals:=nil;
|
|
if assigned(scanner) then
|
|
tscannerfile(scanner).invalid:=true;
|
|
used_units.free;
|
|
dependent_units.free;
|
|
resourcefiles.Free;
|
|
linkunitofiles.Free;
|
|
linkunitstaticlibs.Free;
|
|
linkunitsharedlibs.Free;
|
|
linkotherofiles.Free;
|
|
linkotherstaticlibs.Free;
|
|
linkothersharedlibs.Free;
|
|
stringdispose(objfilename);
|
|
stringdispose(newfilename);
|
|
stringdispose(ppufilename);
|
|
stringdispose(staticlibfilename);
|
|
stringdispose(sharedlibfilename);
|
|
stringdispose(exefilename);
|
|
stringdispose(outputpath);
|
|
stringdispose(path);
|
|
stringdispose(modulename);
|
|
stringdispose(realmodulename);
|
|
stringdispose(mainsource);
|
|
stringdispose(asmprefix);
|
|
localunitsearchpath.Free;
|
|
localobjectsearchpath.free;
|
|
localincludesearchpath.free;
|
|
locallibrarysearchpath.free;
|
|
{$ifdef MEMDEBUG}
|
|
d:=tmemdebug.create('symtable');
|
|
{$endif}
|
|
if assigned(globalsymtable) then
|
|
globalsymtable.free;
|
|
globalsymtable:=nil;
|
|
if assigned(localsymtable) then
|
|
localsymtable.free;
|
|
localsymtable:=nil;
|
|
{$ifdef MEMDEBUG}
|
|
d.free;
|
|
{$endif}
|
|
inherited Destroy;
|
|
end;
|
|
|
|
|
|
procedure tmodule.reset;
|
|
var
|
|
pm : tdependent_unit;
|
|
begin
|
|
if assigned(scanner) then
|
|
tscannerfile(scanner).invalid:=true;
|
|
if assigned(globalsymtable) then
|
|
begin
|
|
globalsymtable.free;
|
|
globalsymtable:=nil;
|
|
end;
|
|
if assigned(localsymtable) then
|
|
begin
|
|
localsymtable.free;
|
|
localsymtable:=nil;
|
|
end;
|
|
if assigned(map) then
|
|
begin
|
|
dispose(map);
|
|
map:=nil;
|
|
end;
|
|
sourcefiles.free;
|
|
sourcefiles:=tinputfilemanager.create;
|
|
imports.free;
|
|
imports:=tlinkedlist.create;
|
|
_exports.free;
|
|
_exports:=tlinkedlist.create;
|
|
externals.free;
|
|
externals:=tlinkedlist.create;
|
|
used_units.free;
|
|
used_units:=TLinkedList.Create;
|
|
{ all units that depend on this one must be recompiled ! }
|
|
pm:=tdependent_unit(dependent_units.first);
|
|
while assigned(pm) do
|
|
begin
|
|
if pm.u.in_second_compile then
|
|
Comment(v_debug,'No reload already in second compile: '+pm.u.modulename^)
|
|
else
|
|
begin
|
|
pm.u.do_reload:=true;
|
|
Comment(v_debug,'Reloading '+pm.u.modulename^+' needed because '+modulename^+' is reloaded');
|
|
end;
|
|
pm:=tdependent_unit(pm.next);
|
|
end;
|
|
dependent_units.free;
|
|
dependent_units:=TLinkedList.Create;
|
|
resourcefiles.Free;
|
|
resourcefiles:=TStringList.Create;
|
|
linkunitofiles.Free;
|
|
linkunitofiles:=TLinkContainer.Create;
|
|
linkunitstaticlibs.Free;
|
|
linkunitstaticlibs:=TLinkContainer.Create;
|
|
linkunitsharedlibs.Free;
|
|
linkunitsharedlibs:=TLinkContainer.Create;
|
|
linkotherofiles.Free;
|
|
linkotherofiles:=TLinkContainer.Create;
|
|
linkotherstaticlibs.Free;
|
|
linkotherstaticlibs:=TLinkContainer.Create;
|
|
linkothersharedlibs.Free;
|
|
linkothersharedlibs:=TLinkContainer.Create;
|
|
uses_imports:=false;
|
|
do_compile:=false;
|
|
{ sources_avail:=true;
|
|
should not be changed PM }
|
|
compiled:=false;
|
|
in_implementation:=false;
|
|
in_global:=true;
|
|
crc:=0;
|
|
interface_crc:=0;
|
|
flags:=0;
|
|
{loaded_from:=nil;
|
|
should not be changed PFV }
|
|
unitcount:=1;
|
|
recompile_reason:=rr_unknown;
|
|
end;
|
|
|
|
|
|
procedure tmodule.numberunits;
|
|
var
|
|
counter : longint;
|
|
hp : tused_unit;
|
|
hp1 : tmodule;
|
|
begin
|
|
{ Reset all numbers to -1 }
|
|
hp1:=tmodule(loaded_units.first);
|
|
while assigned(hp1) do
|
|
begin
|
|
if assigned(hp1.globalsymtable) then
|
|
hp1.globalsymtable.unitid:=$ffff;
|
|
hp1:=tmodule(hp1.next);
|
|
end;
|
|
{ Our own symtable gets unitid 0, for a program there is
|
|
no globalsymtable }
|
|
if assigned(globalsymtable) then
|
|
globalsymtable.unitid:=0;
|
|
{ number units }
|
|
counter:=1;
|
|
hp:=tused_unit(used_units.first);
|
|
while assigned(hp) do
|
|
begin
|
|
tsymtable(hp.u.globalsymtable).unitid:=counter;
|
|
inc(counter);
|
|
hp:=tused_unit(hp.next);
|
|
end;
|
|
end;
|
|
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.23 2002-05-16 19:46:36 carl
|
|
+ defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
|
|
+ try to fix temp allocation (still in ifdef)
|
|
+ generic constructor calls
|
|
+ start of tassembler / tmodulebase class cleanup
|
|
|
|
Revision 1.22 2002/05/14 19:34:41 peter
|
|
* removed old logs and updated copyright year
|
|
|
|
Revision 1.21 2002/04/04 19:05:55 peter
|
|
* removed unused units
|
|
* use tlocation.size in cg.a_*loc*() routines
|
|
|
|
Revision 1.20 2002/03/28 20:46:59 carl
|
|
- remove go32v1 support
|
|
|
|
}
|