Subversion Repositories openrisc_2011-10-31

/*
 *  This file contains directives for the GNU linker which are specific
 *  to the Motorola MVME147 boards.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  MVME147 port for TNI - Telecom Bretagne
 *  by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)
 *  May 1996
 *
 *  $Id: linkcmds,v 1.2 2001-09-27 12:00:16 chris Exp $
 */

/*
 * Declare some sizes.
 */
_RamBase = DEFINED(_RamBase) ? _RamBase : 0x0;
_RamSize = DEFINED(_RamSize) ? _RamSize : 4M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;

MEMORY
{
        ram : org = 0x0, l = 0x400000
}

SECTIONS
{
        ram : {
                . = 0x5000;
        } >ram

        /*
         * Text, data and bss segments
         */
        .text : {
                *(.text)

                /*
                 * C++ constructors/destructors
                 */
                *(.gnu.linkonce.t.*)

                /*
                 * Initialization and finalization code.
                 *
                 * Various files can provide initialization and finalization
                 * functions.  crtbegin.o and crtend.o are two instances. The
                 * body of these functions are in .init and .fini sections. We
                 * accumulate the bodies here, and prepend function prologues
                 * from crti.o and function epilogues from crtn.o. crti.o must
                 * be linked first; crtn.o must be linked last.  Because these
                 * are wildcards, it doesn't matter if the user does not
                 * actually link against crti.o and crtn.o; the linker won't
                 * look for a file to match a wildcard.  The wildcard also
                 * means that it doesn't matter which directory crti.o and
                 * crtn.o are in. 
                 */
                PROVIDE (_init = .);
                *crti.o(.init)
                *(.init)
                *crtn.o(.init)
                PROVIDE (_fini = .);
                *crti.o(.fini)
                *(.fini)
                *crtn.o(.fini)

                /*
                 * C++ constructors/destructors
                 *
                 * gcc uses crtbegin.o to find the start of the constructors
                 * and destructors so we make sure it is first.  Because this
                 * is a wildcard, it doesn't matter if the user does not
                 * actually link against crtbegin.o; the linker won't look for
                 * a file to match a wildcard.  The wildcard also means that
                 * it doesn't matter which directory crtbegin.o is in. The
                 * constructor and destructor list are terminated in
                 * crtend.o.  The same comments apply to it.
                 */
                . = ALIGN (16);
                *crtbegin.o(.ctors)
                *(.ctors)
                *crtend.o(.ctors)
                *crtbegin.o(.dtors)
                *(.dtors)
                *crtend.o(.dtors)

                /*
                 * Exception frame info
                 */
                . = ALIGN (16);
                *(.eh_frame)

                /*
                 * Read-only data
                 */
                . = ALIGN (16);
                _rodata_start = . ;
                *(.rodata)
                *(.gnu.linkonce.r*)

                 . = ALIGN (16);
                PROVIDE (_etext = .);
        } >ram
        .data : {
                PROVIDE (_copy_start = .);
                *(.data)
                *(.gnu.linkonce.d*)
                *(.gcc_except_table)
                . = ALIGN (16);
                PROVIDE (_edata = .);
                PROVIDE (_copy_end = .);
        } >ram
        .bss : {
                _clear_start = .;
                *(.bss)
                *(COMMON)
                . = ALIGN (16);
                PROVIDE (end = .);

                . += _StackSize;
                . = ALIGN (16);
                _stack_init = .;
                _clear_end = .;

                _WorkspaceBase = .;
        } >ram
}