Subversion Repositories openrisc

/*
 * This is an adapted linker script from egcs-1.0.1 
 *
 * Memory layout for an SH7045F with main memory in area 2
 * This memory layout it very similar to that used for Hitachi's
 * EVB with CMON in FLASH
 *
 * NOTE: The ram start address may vary, all other start addresses are fixed
 *       Not suiteable for gdb's simulator
 *
 *  Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and
 *           Bernd Becker (becker@faw.uni-ulm.de)
 *
 *  COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
 *
 *  This program 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.
 *
 *
 *  COPYRIGHT (c) 1998.
 *  On-Line Applications Research Corporation (OAR).
 *  Copyright assigned to U.S. Government, 1994.
 *
 *  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.
 *
 *      Modified to reflect SH7045F processor and EVB:
 *      John M. Mills (jmills@tga.com)
 *      TGA Technologies, Inc.
 *      100 Pinnacle Way, Suite 140
 *      Norcross, GA 30071 U.S.A.
 *
 *      This modified file may be copied and distributed in accordance
 *      the above-referenced license. It is provided for critique and
 *      developmental purposes without any warranty nor representation
 *      by the authors or by TGA Technologies.
 *
 *  $Id: linkcmds,v 1.2 2001-09-27 12:01:12 chris Exp $
 */

OUTPUT_FORMAT("coff-sh")
OUTPUT_ARCH(sh)
ENTRY(_start)

/* These assignments load code into SH7045F EVB SRAM for monitor debugging */

MEMORY
{
  rom           : o = 0x00400000, l = 0x00040000
  ram           : o = 0x00440000, l = 0x00040000
  onchip_peri   : o = 0xFFFF8000, l = 0x00000800
  onchip_ram    : o = 0xFFFFF000, l = 0x00001000
}

/* Sections are defined for RAM loading and monitor debugging */
SECTIONS
{
  /* boot vector table */
  .monvects 0x00400000 (NOLOAD): {
    _monvects = . ;
  } > rom

  /* monitor play area */
  .monram 0x00440000 (NOLOAD) : 
  {
  _ramstart = .;
  } > ram 

  /* monitor vector table */
  .vects   0x00442000 (NOLOAD) : {
    _vectab = . ;
    *(.vects);
  }

  /* Read-only sections, merged into text segment: */

  . = 0x00444000 ;
  .interp        : { *(.interp)         }
  .hash          : { *(.hash)           }
  .dynsym        : { *(.dynsym)         }
  .dynstr        : { *(.dynstr)         }
  .gnu.version   : { *(.gnu.version)    }
  .gnu.version_d : { *(.gnu.version_d)  }
  .gnu.version_r : { *(.gnu.version_r)  }
  .rel.text      :
    { *(.rel.text) *(.rel.gnu.linkonce.t*) }
  .rela.text     :
    { *(.rela.text) *(.rela.gnu.linkonce.t*) }
  .rel.data      :
    { *(.rel.data) *(.rel.gnu.linkonce.d*) }
  .rela.data     :
    { *(.rela.data) *(.rela.gnu.linkonce.d*) }
  .rel.rodata    :
    { *(.rel.rodata) *(.rel.gnu.linkonce.r*) }
  .rela.rodata   :
    { *(.rela.rodata) *(.rela.gnu.linkonce.r*) }
  .rel.got       : { *(.rel.got)                }
  .rela.got      : { *(.rela.got)               }
  .rel.ctors     : { *(.rel.ctors)      }
  .rela.ctors    : { *(.rela.ctors)     }
  .rel.dtors     : { *(.rel.dtors)      }
  .rela.dtors    : { *(.rela.dtors)     }
  .rel.init      : { *(.rel.init)       }
  .rela.init     : { *(.rela.init)      }
  .rel.fini      : { *(.rel.fini)       }
  .rela.fini     : { *(.rela.fini)      }
  .rel.bss       : { *(.rel.bss)                }
  .rela.bss      : { *(.rela.bss)               }
  .rel.plt       : { *(.rel.plt)                }
  .rela.plt      : { *(.rela.plt)               }
  .init          : { *(.init)   } =0
  .plt           : { *(.plt)    }
  .text   .      :
  {
    *(.text)
    *(.stub)
    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
    *(.gnu.linkonce.t*)
  } > ram
  _etext = .;
  PROVIDE (etext = .);
  .fini    .  : { *(.fini)    } =0
  .rodata  .  : { *(.rodata) *(.gnu.linkonce.r*) }
  .rodata1 .  : { *(.rodata1) }
  /* Adjust the address for the data segment.  We want to adjust up to
     the same address within the page on the next page up.  */
  . = ALIGN(128) + (. & (128 - 1));
  .data  .  :
  {
    *(.data)
    *(.gnu.linkonce.d*)
    CONSTRUCTORS
  } > ram
  .data1  . : { *(.data1) }
  .ctors  .       :
  {
    ___ctors = .;
    *(.ctors)
    ___ctors_end = .;
  }
  .dtors  .       :
  {
    ___dtors = .;
    *(.dtors)
    ___dtors_end = .;
  }
  .got     .      : { *(.got.plt) *(.got) }
  .dynamic .      : { *(.dynamic) }
  /* We want the small data sections together, so single-instruction offsets
     can access them all, and initialized data all before uninitialized, so
     we can shorten the on-disk segment size.  */
  .sdata   .  : { *(.sdata) }
  _edata  =  .;
  PROVIDE (edata = .);
  __bss_start = .;
  .sbss    .  : { *(.sbss) *(.scommon) }
  .bss     .  :
  {
   *(.dynbss)
   *(.bss)
   *(COMMON)
  } > ram
  _end = . ;
  PROVIDE (end = .);

  _HeapStart = . ;
  . = . + 1024 * 20 ;
  PROVIDE( _HeapEnd = . );

  _WorkSpaceStart = . ;
  . = 0x00480000 ;
  PROVIDE(_WorkSpaceEnd = .);

  _CPU_Interrupt_stack_low  = 0xFFFFF000 ;
  _CPU_Interrupt_stack_high = _CPU_Interrupt_stack_low + 4096 ;

  /* Stabs debugging sections.  */
  .stab 0 : { *(.stab) }
  .stabstr 0 : { *(.stabstr) }
  .stab.excl 0 : { *(.stab.excl) }
  .stab.exclstr 0 : { *(.stab.exclstr) }
  .stab.index 0 : { *(.stab.index) }
  .stab.indexstr 0 : { *(.stab.indexstr) }
  .comment 0 : { *(.comment) }
  /* DWARF debug sections.
     Symbols in the DWARF debugging sections are relative to the beginning
     of the section so we begin them at 0.  */
  /* DWARF 1 */
  .debug          0 : { *(.debug) }
  .line           0 : { *(.line) }
  /* GNU DWARF 1 extensions */
  .debug_srcinfo  0 : { *(.debug_srcinfo) }
  .debug_sfnames  0 : { *(.debug_sfnames) }
  /* DWARF 1.1 and DWARF 2 */
  .debug_aranges  0 : { *(.debug_aranges) }
  .debug_pubnames 0 : { *(.debug_pubnames) }
  /* DWARF 2 */
  .debug_info     0 : { *(.debug_info) }
  .debug_abbrev   0 : { *(.debug_abbrev) }
  .debug_line     0 : { *(.debug_line) }
  .debug_frame    0 : { *(.debug_frame) }
  .debug_str      0 : { *(.debug_str) }
  .debug_loc      0 : { *(.debug_loc) }
  .debug_macinfo  0 : { *(.debug_macinfo) }
  /* SGI/MIPS DWARF 2 extensions */
  .debug_weaknames 0 : { *(.debug_weaknames) }
  .debug_funcnames 0 : { *(.debug_funcnames) }
  .debug_typenames 0 : { *(.debug_typenames) }
  .debug_varnames  0 : { *(.debug_varnames) }

  .stack 0xFFFFFEC0 : { _stack = .; *(.stack) } > onchip_ram
  /* These must appear regardless of  .  */
}