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#ifndef CYGONCE_HAL_VAR_IO_H

#define CYGONCE_HAL_VAR_IO_H

//=============================================================================

//

//      var_io.h

//

//      Processor-specific I/O support

//

//=============================================================================

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

// -------------------------------------------                              

// This file is part of eCos, the Embedded Configurable Operating System.   

// Copyright (C) 2003, 2005 Free Software Foundation, Inc.                  

//

// eCos 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 or (at your option) any later      

// version.                                                                 

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,    

// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            

//

// As a special exception, if other files instantiate templates or use      

// macros or inline functions from this file, or you compile this file      

// and link it with other works to produce a work based on this file,       

// this file does not by itself cause the resulting work to be covered by   

// the GNU General Public License. However the source code for this file    

// must still be made available in accordance with section (3) of the GNU   

// General Public License v2.                                               

//

// This exception does not invalidate any other reasons why a work based    

// on this file might be covered by the GNU General Public License.         

// -------------------------------------------                              

// ####ECOSGPLCOPYRIGHTEND####                                              

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   bartv

// Date:        2003-10-08

// Usage:       #include <cyg/hal/hal_io.h>

//

//####DESCRIPTIONEND####

//

//=============================================================================

#include <cyg/infra/cyg_type.h>

// In theory an application signal handler can just return straight to

// the kernel. In reality this is usually the case as well, but with

// some kernel versions on some processors it is necessary instead to

// exit via a sigreturn system call.

externC void    cyg_hal_sys_restore(void);

externC void    cyg_hal_sys_restore_rt(void);

#define CYG_HAL_SYS_SIGACTION_ADJUST(_sig_, _sigaction_)    \

    CYG_MACRO_START                                         \

    (_sigaction_)->hal_flags    |= CYG_HAL_SYS_SA_RESTORER; \

    (_sigaction_)->hal_restorer = &cyg_hal_sys_restore;     \

    CYG_MACRO_END

// Additional information passed to a signal handler. This is useful

// for e.g. profiling.

struct cyg_hal_sys_sigcontext {

    unsigned short  hal_gs;

    unsigned short  hal_gsh;

    unsigned short  hal_fs;

    unsigned short  hal_fsh;

    unsigned short  hal_es;

    unsigned short  hal_esh;

    unsigned short  hal_ds;

    unsigned short  hal_dsh;

    unsigned long   hal_edi;

    unsigned long   hal_esi;

    unsigned long   hal_ebp;

    unsigned long   hal_esp;

    unsigned long   hal_ebx;

    unsigned long   hal_edx;

    unsigned long   hal_ecx;

    unsigned long   hal_eax;

    unsigned long   hal_trapno;

    unsigned long   hal_err;

    unsigned long   hal_eip;

    unsigned short  hal_cs;

    unsigned short  hal_csh;

    unsigned long   hal_eflags;

    unsigned long   hal_esp_at_signal;

    unsigned short  hal_ss;

    unsigned short  hal_ssh;

    void*           hal_fpstate;

    unsigned long   hal_oldmask;

    unsigned long   hal_cr2;

};

//--------------------------------------------------------------------------

#endif // CYGONCE_HAL_VAR_IO_H

// End of var_io.h