Subversion Repositories openrisc_me

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

//

//      plf_stub.c

//

//      Platform specific code for GDB stub support.

//

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

//####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):   nickg, jskov (based on the old tx39 hal_stub.c)

// Contributors:nickg, jskov

// Date:        1999-02-12

// Purpose:     Platform specific code for GDB stub support.

//              

//####DESCRIPTIONEND####

//

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

#include <pkgconf/hal.h>

#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS

#include <cyg/hal/hal_stub.h>

#include <cyg/hal/hal_io.h>             // HAL IO macros

#include <cyg/hal/hal_diag.h>           // diag output. FIXME

#include <cyg/hal/hal_intr.h>

#include <cyg/hal/hal_if.h>

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

// Stub init

void hal_plf_stub_init(void)

{

//    extern CYG_ADDRESS hal_virtual_vector_table[64];

    extern void init_thread_syscall( void *);

    extern void install_async_breakpoint(void *epc);

    void (*oldvsr)(void);

    extern void __default_exception_vsr(void);

    // Ensure that the breakpoint VSR points to the default VSR. This will pass

    // it on to the stubs.

    HAL_VSR_SET( CYGNUM_HAL_VECTOR_BREAKPOINT, __default_exception_vsr, &oldvsr );

    // Install async breakpoint handler into vector table.

    hal_virtual_vector_table[35] = (CYG_ADDRESS)install_async_breakpoint;

#if !defined(CYGPKG_KERNEL) && defined(CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT)

    // Only include this code if we do not have a kernel. Otherwise

    // the kernel supplies the functionality for the app we are linked

    // with.

    // Prepare for application installation of thread info function in

    // vector table.

    hal_virtual_vector_table[15] = 0;

    init_thread_syscall( (void *)&hal_virtual_vector_table[15] );

#endif

}

#endif // ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS

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

// End of plf_stub.c