callinfo.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 101 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  front end calling info structure and initialization
*
****************************************************************************/

#ifndef __CALLINFO_H__
#define __CALLINFO_H__

#if !defined( BY_C_FRONT_END ) && !defined( BY_CPP_FRONT_END ) && !defined( BY_FORTRAN_FRONT_END )

#error "!!!! Call info - Unknown front end !!!!"

#else

struct aux_info {
        call_class      cclass;
        union {
  #if _RISC_CPU
            risc_byte_seq   *code;
  #else
            byte_seq        *code;
  #endif
            int         code_size;      // for C pre-compiled header
        };
        union {
            hw_reg_set  *parms;
            int         parms_size;     // for C pre-compiled header
        };
        hw_reg_set      returns;
        hw_reg_set      streturn;
        hw_reg_set      save;
        union {
            char        *objname;
            int         objname_size;   // for C pre-compiled header
        };
        unsigned        use;            // use count
        aux_flags       flags;
        unsigned        index;          // for C/C++ pre-compiled header
  #ifdef BY_C_FRONT_END
    #if _CPU == 370
        linkage_regs    *linkage;
    #endif
    #if _CPU == _AXP
        char           *except_rtn;
    #endif
  #endif
};

global struct aux_info          DefaultInfo;
global struct aux_info          WatcallInfo;
global struct aux_info          CdeclInfo;
global struct aux_info          PascalInfo;
global struct aux_info          FortranInfo;
global struct aux_info          SyscallInfo;
global struct aux_info          OptlinkInfo;
global struct aux_info          StdcallInfo;
global struct aux_info          FastcallInfo;
#if _CPU == 386
global struct aux_info          Far16CdeclInfo;
global struct aux_info          Far16PascalInfo;
#endif

extern  void    PragmaAuxInfoInit( int );
extern  void    SetAuxStackConventions( void );
extern  void    SetAuxWatcallInfo( void );
extern  void    SetAuxDefaultInfo( void );
extern  int     IsAuxParmsBuiltIn( hw_reg_set *parms );
extern  int     IsAuxInfoBuiltIn( struct aux_info *info );
extern  char    *VarNamePattern( struct aux_info *inf );

#endif

#endif