Subversion Repositories openrisc_2011-10-31

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

//

//      exit.cxx

//

//      Implementation of the exit() function

//

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

//####ECOSGPLCOPYRIGHTBEGIN####

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

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

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.

//

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

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

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

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

//####ECOSGPLCOPYRIGHTEND####

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

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

//

// Author(s):    jlarmour

// Contributors: 

// Date:         2000-04-30

// Purpose:     

// Description: 

// Usage:       

//

//####DESCRIPTIONEND####

//

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

// CONFIGURATION

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

// 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 <stdio.h>                 // fflush()

#include <errno.h>                 // errno

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

                                   // (like this one)

// EXTERNAL PROTOTYPES

externC void

cyg_libc_invoke_atexit_handlers( void );

// FUNCTIONS

externC void

exit( int status )

{

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

    CYG_REPORT_FUNCARG1DV( status );

    // Strictly the only thing exit() does is invoke the atexit handlers

    // and flush stdio buffers. Anything else is for _exit() 

    // within the implementation)

#ifdef CYGFUN_LIBC_ATEXIT

    // we start with the atexit handlers

    cyg_libc_invoke_atexit_handlers();

#endif

#ifdef CYGSEM_LIBC_EXIT_CALLS_FFLUSH

    int rc;

    CYG_TRACE0( true, "Calling fflush( NULL )" );

    rc = fflush( NULL );

    CYG_TRACE2( rc != 0, "fflush() returned non-zero. It returned %d and "

                "errno indicates the error: %s", rc, strerror(errno) );

#endif

    _exit( status );

    CYG_FAIL( "__libc_exit() returning!!!" );

    CYG_REPORT_RETURN();

} // __libc_exit()

// EOF exit.cxx