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

//

//      _exit.cxx

//

//      _exit() as from POSIX 1003.1 section 3.2.2 "Terminate a process"

//

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

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

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

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

// Copyright (C) 1998, 1999, 2000, 2001, 2002 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):     jlarmour

// Contributors:  

// Date:          2000-04-28

// Purpose:       Provides POSIX 1003.1 _exit() function

// Description: 

// Usage:       

//

//####DESCRIPTIONEND####

//

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

// CONFIGURATION

#include <pkgconf/libc_startup.h>          // Configuration header

#include <pkgconf/system.h>

// INCLUDES

#include <cyg/infra/cyg_type.h>    // Common type definitions and support

#include <cyg/infra/cyg_trac.h>    // Common tracing support

#include <cyg/infra/cyg_ass.h>     // Common assertion support

#include <stdlib.h>                // Header for all stdlib functions

                                   // (like this one)

#ifdef CYGPKG_KERNEL

# include <pkgconf/kernel.h>       // kernel configuration

# include <cyg/kernel/thread.hxx>  // eCos kernel for thread termination

# include <cyg/kernel/thread.inl>  // and

# include <cyg/kernel/sched.hxx>   // for stopping the scheduler

# include <cyg/kernel/sched.inl>

#endif

// FUNCTIONS

externC void

_exit( int status )

{

    CYG_REPORT_FUNCTION(); // shouldn't return, but CYG_FAIL will catch it

    CYG_REPORT_FUNCARG1DV( status );

    CYG_ASSERT( status == 0, "Program _exiting with non-zero error status");

#ifdef CYGPKG_KERNEL

# ifdef CYGSEM_LIBC_EXIT_STOPS_SYSTEM

    Cyg_Scheduler::lock(); // prevent rescheduling

    for (;;)

        CYG_EMPTY_STATEMENT;

# else

    Cyg_Thread::exit();

# endif

#endif

    // loop forever

    for (;;)

        CYG_EMPTY_STATEMENT;

    CYG_FAIL( "_exit() returning!!!" );

    CYG_REPORT_RETURN();

} // _exit()

// EOF _exit.cxx