cstartup.cxx

ecos为实时嵌入式操作系统

//=======================================================================
//
//      cstartup.cxx
//
//      Support for startup of ISO C environment
//
//========================================================================
//####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:     
// Description: 
// Usage:       
//
//####DESCRIPTIONEND####
//
//========================================================================

// CONFIGURATION

#include <pkgconf/libc.h>           // C library configuration

// INCLUDES

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

#ifdef CYGPKG_KERNEL
# include <pkgconf/kernel.h>        // eCos kernel configuration
# include <cyg/kernel/thread.hxx>   // eCos thread support
# include <cyg/kernel/thread.inl>
#endif


// FUNCTION PROTOTYPES

externC void
cyg_libc_invoke_main( CYG_ADDRWORD );

// EXTERNS

// let the main thread be global so people can play with it (e.g. suspend
// or resume etc.) if that's what they want to do
#ifdef CYGSEM_LIBC_STARTUP_MAIN_THREAD
extern Cyg_Thread cyg_libc_main_thread;
#endif

// FUNCTIONS

externC void
cyg_iso_c_start( void )
{
    CYG_REPORT_FUNCNAME( "cyg_iso_c_start" );
    CYG_REPORT_FUNCARGVOID();
    
#ifdef CYGSEM_LIBC_STARTUP_MAIN_THREAD
    CYG_TRACE0( true, "Resuming cyg_libc_main_thread" );
    cyg_libc_main_thread.resume();
#else
    cyg_libc_invoke_main(0);
#endif

    CYG_REPORT_RETURN();
} // cyg_iso_c_start()

// EOF cstartup.cxx