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//=======================================================================
//
// cstartup.cxx
//
// Support for startup of ISO C environment
//
//========================================================================
// ####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: 2000-04-30
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//========================================================================
// CONFIGURATION
#include <pkgconf/system.h> // CYGPKG_KERNEL
#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
#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
#ifdef CYGSEM_LIBC_STARTUP_MAIN_THREAD
extern Cyg_Thread cyg_libc_main_thread;
// FUNCTIONS
externC void
cyg_iso_c_start( void )
{
static int initialized=0;
CYG_REPORT_FUNCNAME( "cyg_iso_c_start" );
CYG_REPORT_FUNCARGVOID();
if (initialized++ == 0) {
CYG_TRACE0( true, "Resuming cyg_libc_main_thread" );
cyg_libc_main_thread.resume();
}
CYG_REPORT_RETURN();
} // cyg_iso_c_start()
// define an object that will automatically call cyg_iso_c_start()
class cyg_libc_startup_dummy_constructor_class {
public:
cyg_libc_startup_dummy_constructor_class() { cyg_iso_c_start(); }
};
static cyg_libc_startup_dummy_constructor_class cyg_libc_startup_obj
CYGBLD_ATTRIB_INIT_AFTER(CYG_INIT_LIBC);
#elif defined( CYGSEM_LIBC_STARTUP_MAIN_INITCONTEXT )
// otherwise replace the default cyg_user_start(), but of course keep
// it a weak symbol in case the user wants to override
externC void
cyg_user_start(void) CYGBLD_ATTRIB_WEAK;
externC void
cyg_user_start(void)
{
cyg_libc_invoke_main(0);
}
externC void
cyg_iso_c_start( void )
{
static int initialized=0;
CYG_REPORT_FUNCNAME( "cyg_iso_c_start" );
CYG_REPORT_FUNCARGVOID();
// In case they want to explicitly invoke the C library from
// cyg_user_start() themselves
if (initialized++ == 0) {
cyg_libc_invoke_main(0);
}
CYG_REPORT_RETURN();
}
#else
externC void
cyg_iso_c_start( void ) {}
#endif
// EOF cstartup.cxx
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