userstart.cxx

来自「ecos为实时嵌入式操作系统」· CXX 代码 · 共 76 行

//========================================================================
//
//      userstart.cxx
//
//      General startup code for the target machine
//
//========================================================================
//####COPYRIGHTBEGIN####
//
// -------------------------------------------
// The contents of this file are subject to the Cygnus eCos Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License.  You may obtain a copy of the License at
// http://sourceware.cygnus.com/ecos
// 
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
// License for the specific language governing rights and limitations under
// the License.
// 
// The Original Code is eCos - Embedded Cygnus Operating System, released
// September 30, 1998.
// 
// The Initial Developer of the Original Code is Cygnus.  Portions created
// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
// -------------------------------------------
//
//####COPYRIGHTEND####
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     jlarmour
// Contributors:  jlarmour
// Date:          1999-01-21
// Purpose:       This provides generic startup code for the eCos system.
// Description:   We start the system with the entry point cyg_start()
//                which is called from the eCos HALs. This in turn invokes
//                cyg_prestart(), cyg_package_start() and cyg_user_start().
//                All these can be overriden by the user.
// Usage:         Override the defaults to use your own startup code.
//                cyg_user_start() is the default entry point for programs
//                not using a compatibility layer
//
//####DESCRIPTIONEND####
//
//========================================================================

// INCLUDES

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

// FUNCTION PROTOTYPES

externC void
cyg_user_start( void ) CYGBLD_ATTRIB_WEAK;


// FUNCTIONS

void
cyg_user_start( void )
{
    CYG_REPORT_FUNCTION();
    CYG_REPORT_FUNCARGVOID();

    CYG_TRACE0( true, "This is the system default cyg_user_start()" );

    CYG_EMPTY_STATEMENT; // don't let it complain about doing nothing

    CYG_REPORT_RETURN();
} // cyg_user_start()


// EOF userstart.cxx