freepascal.compiler/compiler/globtype.pas

{
    $Id$
    Copyright (c) 1998-2002 by Florian Klaempfl, Pierre Muller

    Global types

    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 globtype;

{$i fpcdefs.inc}

interface

    const
       maxidlen = 64;

    type

       { Switches which can be changed locally }
       tlocalswitch = (cs_localnone,
         { codegen }
         cs_check_overflow,cs_check_range,cs_check_object,
         cs_check_io,cs_check_stack,
         cs_omitstackframe,cs_do_assertion,cs_generate_rtti,
         cs_full_boolean_eval,cs_typed_const_writable,
         { mmx }
         cs_mmx,cs_mmx_saturation,
         { parser }
         cs_typed_addresses,cs_strict_var_strings,cs_ansistrings
       );
       tlocalswitches = set of tlocalswitch;

       { Switches which can be changed only at the beginning of a new module }
       tmoduleswitch = (cs_modulenone,
         { parser }
         cs_fp_emulation,cs_extsyntax,cs_openstring,
         { support }
         cs_support_inline,cs_support_goto,cs_support_macro,
         cs_support_c_operators,cs_static_keyword,
         { generation }
         cs_profile,cs_debuginfo,cs_browser,cs_local_browser,cs_compilesystem,
         cs_lineinfo,cs_threading,cs_implicit_exceptions,
         { linking }
         cs_create_smart,cs_create_dynamic,cs_create_pic
       );
       tmoduleswitches = set of tmoduleswitch;

       { Switches which can be changed only for a whole program/compilation,
         mostly set with commandline }
       tglobalswitch = (cs_globalnone,
         { parameter switches }
         cs_check_unit_name,cs_constructor_name,
         { units }
         cs_load_objpas_unit,
         cs_load_gpc_unit,
         { optimizer }
         cs_regalloc,cs_no_regalloc,cs_uncertainopts,cs_littlesize,
         cs_optimize,cs_fastoptimize,cs_slowoptimize,cs_align,
         { browser }
         cs_browser_log,
         { debugger }
         cs_gdb_dbx,cs_gdb_gsym,cs_gdb_heaptrc,cs_gdb_lineinfo,
         cs_checkpointer,
         { assembling }
         cs_asm_leave,cs_asm_extern,cs_asm_pipe,cs_asm_source,
         cs_asm_regalloc,cs_asm_tempalloc,cs_asm_nodes,
         { linking }
         cs_link_extern,cs_link_static,cs_link_smart,cs_link_shared,cs_link_deffile,
         cs_link_strip,cs_link_staticflag,cs_link_on_target,cs_link_internal,cs_link_map
       );
       tglobalswitches = set of tglobalswitch;

       { Switches which can be changed by a mode (fpc,tp7,delphi) }
       tmodeswitch = (m_none,m_all, { needed for keyword }
         { generic }
         m_fpc,m_objfpc,m_delphi,m_tp7,m_gpc,
         { more specific }
         m_class,               { delphi class model }
         m_objpas,              { load objpas unit }
         m_result,              { result in functions }
         m_string_pchar,        { pchar 2 string conversion }
         m_cvar_support,        { cvar variable directive }
         m_nested_comment,      { nested comments }
         m_tp_procvar,          { tp style procvars (no @ needed) }
         m_repeat_forward,      { repeating forward declarations is needed }
         m_pointer_2_procedure, { allows the assignement of pointers to
                                  procedure variables                     }
         m_autoderef,           { does auto dereferencing of struct. vars }
         m_initfinal,           { initialization/finalization for units }
         m_add_pointer,         { allow pointer add/sub operations }
         m_default_ansistring,  { ansistring turned on by default }
         m_out,                 { support the calling convention OUT }
         m_default_para,        { support default parameters }
         m_hintdirective,       { support hint directives }
         m_duplicate_names      { allow locals/paras to have duplicate names of globals }
       );
       tmodeswitches = set of tmodeswitch;

       { win32 & OS/2 application types }
       tapptype = (app_none,
         app_gui,app_cui,app_fs
       );

       { interface types }
       tinterfacetypes = (
         it_interfacecom,
         it_interfacecorba
       );

       { currently parsed block type }
       tblock_type = (bt_none,
         bt_general,bt_type,bt_const,bt_except
       );

       { calling convention for tprocdef and tprocvardef }
       tproccalloption=(pocall_none,
         pocall_cdecl,         { procedure uses C styled calling }
         pocall_cppdecl,       { C++ calling conventions }
         pocall_compilerproc,  { Procedure is used for internal compiler calls }
         pocall_far16,         { Far16 for OS/2 }
         pocall_fpccall,       { FPC default calling }
         pocall_inline,        { Procedure is an assembler macro }
         pocall_internproc,    { Procedure has compiler magic}
         pocall_palmossyscall, { procedure is a PalmOS system call }
         pocall_pascal,        { pascal standard left to right }
         pocall_register,      { procedure uses register (fastcall) calling }
         pocall_safecall,      { safe call calling conventions }
         pocall_stdcall        { procedure uses stdcall call }
       );
       tproccalloptions = set of tproccalloption;

     const
       proccalloptionStr : array[tproccalloption] of string[14]=('',
           'CDecl',
           'CPPDecl',
           'CompilerProc',
           'Far16',
           'FPCCall',
           'Inline',
           'InternProc',
           'PalmOSSysCall',
           'Pascal',
           'Register',
           'SafeCall',
           'StdCall'
         );

    type
       stringid = string[maxidlen];

       tnormalset = set of byte; { 256 elements set }
       pnormalset = ^tnormalset;



       pboolean   = ^boolean;
       pdouble    = ^double;
       pbyte      = ^byte;
       pword      = ^word;
       plongint   = ^longint;
       plongintarray = plongint;

       Tconstant=record
            case signed:boolean of
                false:
                    (valueu:cardinal);
                true:
                    (values:longint);
       end;

{$ifndef Delphi}
  {$ifndef xFPC}
    type
      pguid = ^tguid;
      tguid = packed record
        D1: LongWord;
        D2: Word;
        D3: Word;
        D4: array[0..7] of Byte;
      end;
  {$endif}
{$endif}

    const
       { link options }
       link_none    = $0;
       link_allways = $1;
       link_static  = $2;
       link_smart   = $4;
       link_shared  = $8;

implementation

end.
{
  $Log$
  Revision 1.38  2003-04-27 11:21:32  peter
    * aktprocdef renamed to current_procdef
    * procinfo renamed to current_procinfo
    * procinfo will now be stored in current_module so it can be
      cleaned up properly
    * gen_main_procsym changed to create_main_proc and release_main_proc
      to also generate a tprocinfo structure
    * fixed unit implicit initfinal

  Revision 1.37  2003/04/27 07:29:50  peter
    * current_procdef cleanup, current_procdef is now always nil when parsing
      a new procdef declaration
    * aktprocsym removed
    * lexlevel removed, use symtable.symtablelevel instead
    * implicit init/final code uses the normal genentry/genexit
    * funcret state checking updated for new funcret handling

  Revision 1.36  2003/04/22 23:50:22  peter
    * firstpass uses expectloc
    * checks if there are differences between the expectloc and
      location.loc from secondpass in EXTDEBUG

  Revision 1.35  2003/03/08 08:59:07  daniel
    + $define newra will enable new register allocator
    + getregisterint will return imaginary registers with $newra
    + -sr switch added, will skip register allocation so you can see
      the direct output of the code generator before register allocation

  Revision 1.34  2002/10/16 19:01:43  peter
    + $IMPLICITEXCEPTIONS switch to turn on/off generation of the
      implicit exception frames for procedures with initialized variables
      and for constructors. The default is on for compatibility

  Revision 1.33  2002/10/14 19:43:41  peter
    * threading switch, defines the symbol FPC_THREADING

  Revision 1.32  2002/10/05 12:43:24  carl
    * fixes for Delphi 6 compilation
     (warning : Some features do not work under Delphi)

  Revision 1.31  2002/08/19 19:36:42  peter
    * More fixes for cross unit inlining, all tnodes are now implemented
    * Moved pocall_internconst to po_internconst because it is not a
      calling type at all and it conflicted when inlining of these small
      functions was requested

  Revision 1.30  2002/08/12 15:08:39  carl
    + stab register indexes for powerpc (moved from gdb to cpubase)
    + tprocessor enumeration moved to cpuinfo
    + linker in target_info is now a class
    * many many updates for m68k (will soon start to compile)
    - removed some ifdef or correct them for correct cpu

  Revision 1.29  2002/08/06 20:55:20  florian
    * first part of ppc calling conventions fix

  Revision 1.28  2002/07/04 20:43:00  florian
    * first x86-64 patches

  Revision 1.27  2002/07/01 18:46:22  peter
    * internal linker
    * reorganized aasm layer

  Revision 1.26  2002/05/18 13:34:08  peter
    * readded missing revisions

  Revision 1.25  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 1.23  2002/05/12 16:53:05  peter
    * moved entry and exitcode to ncgutil and cgobj
    * foreach gets extra argument for passing local data to the
      iterator function
    * -CR checks also class typecasts at runtime by changing them
      into as
    * fixed compiler to cycle with the -CR option
    * fixed stabs with elf writer, finally the global variables can
      be watched
    * removed a lot of routines from cga unit and replaced them by
      calls to cgobj
    * u32bit-s32bit updates for and,or,xor nodes. When one element is
      u32bit then the other is typecasted also to u32bit without giving
      a rangecheck warning/error.
    * fixed pascal calling method with reversing also the high tree in
      the parast, detected by tcalcst3 test

  Revision 1.22  2002/04/21 19:02:03  peter
    * removed newn and disposen nodes, the code is now directly
      inlined from pexpr
    * -an option that will write the secondpass nodes to the .s file, this
      requires EXTDEBUG define to actually write the info
    * fixed various internal errors and crashes due recent code changes

  Revision 1.21  2002/03/24 19:05:59  carl
  + patch for SPARC from Mazen NEIFER

  Revision 1.20  2002/01/24 18:25:48  peter
   * implicit result variable generation for assembler routines
   * removed m_tp modeswitch, use m_tp7 or not(m_fpc) instead

}