source: rtems/c/src/lib/libbsp/sh/shsim/startup/linkcmds @ 93b1e4b

/*
 * Memory layout for an SH 7032 with main memory in area 0
 *
 * NOTES: 
 * + All RAM/ROM areas are mapped onto area 0, because gdb's simulator
 * is not able to simulate memory areas but area 0. Area 5 (on-chip
 * peripherials) can not be mapped onto area 0 and will cause SIGILL 
 * exceptions.
 * + Assumed to be compatible with other SH-cpu family members (eg. SH7045)
 *
 *  Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
 *
 *  COPYRIGHT (c) 2001, Ralf Corsepius, 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.
 */

OUTPUT_ARCH(sh)
ENTRY(_start)

_RamBase = DEFINED(_RamBase) ? _RamBase : 0x00000000;
_RamSize = DEFINED(_RamSize) ? _RamSize : 16M;
_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x0;

MEMORY
{
/* Real memory layout submitted
  rom           : o = 0x00000000, l = 128k
  ram           : o = 0x00040000, l = 256k
*/

/* Memory layout which links all tests */
  rom           : o = 0x01000000, l = 512k
  ram           : o = 0x00040000, l = 512k

  onchip_peri   : o = 0x05000000, l = 512
}

SECTIONS
{
  /* boot vector table */
  .monvects (NOLOAD) :
  { 
    _monvects = . ;
  } > rom

  /* monitor play area */
  .monram 0x00040000 (NOLOAD) : 
  {
  _ramstart = .;
  } > ram 

  /* monitor vector table */
  .vects   0x00042000 (NOLOAD) : {
    _vectab = . ;
    *(.vects);
  }

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

  . = 0x00044000 ;
  .interp        : { *(.interp)         }
  .hash          : { *(.hash)           }
  .dynsym        : { *(.dynsym)         }
  .dynstr        : { *(.dynstr)         }
  .gnu.version   : { *(.gnu.version)    }
  .gnu.version_d : { *(.gnu.version_d)  }
  .gnu.version_r : { *(.gnu.version_r)  }
  .rela.dyn       :
    {
      *(.rela.init)
      *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
      *(.rela.fini)
      *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
      *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
      *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
      *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
      *(.rela.ctors)
      *(.rela.dtors)
      *(.rela.got)
      *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*)
      *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*)
      *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*)
      *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*)
      *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
    } >ram
  .rel.text      :
    { *(.rel.text) *(.rel.gnu.linkonce.t*) }
  .rel.data      :
    { *(.rel.data) *(.rel.gnu.linkonce.d*) }
  .rel.rodata    :
    { *(.rel.rodata) *(.rel.gnu.linkonce.r*) }
  .rel.got       : { *(.rel.got)                }
  .rel.ctors     : { *(.rel.ctors)      }
  .rel.dtors     : { *(.rel.dtors)      }
  .rel.init      : { *(.rel.init)       }
  .rel.fini      : { *(.rel.fini)       }
  .rel.bss       : { *(.rel.bss)                }
  .rel.plt       : { *(.rel.plt)                }
  .init          : { *(.init)   } =0
  .plt           : { *(.plt)    }
  .text   .      :
  {
    _start = .;
    *(.text*)
    *(.stub)

    /*
     * Special FreeBSD sysctl sections.
     */
    . = ALIGN (16);
    ___start_set_sysctl_set = .;
    *(set_sysc*);   /* set_sysctl_* but name is truncated by SH-coff */
    ___stop_set_sysctl_set = ABSOLUTE(.);
    *(set_doma*);   /* set_domain_* but name is truncated by SH-coff */
    *(set_pseu*);   /* set_pseudo_* but name is truncated by SH-coff */

    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
    *(.gnu.linkonce.t*)
  } > ram
  .fini           :
  {
    KEEP (*(.fini))
  } =0
  _etext = .;
  PROVIDE (etext = .);
  .rodata  .  : { *(.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*)
    *(.gcc_exc*)
    ___EH_FRAME_BEGIN__ = .;
    *(.eh_fram*)
    ___EH_FRAME_END__ = .;
    LONG(0);
    *(.gcc_except_table*)
    *(.gnu.linkonce.d*)
    CONSTRUCTORS
  } > ram
  .data1  . : { *(.data1) }
  .ctors  .       :
  {
    ___ctors = .;
    *(.ctors)
    ___ctors_end = .;
  }
  .dtors  .       :
  {
    ___dtors = .;
    *(.dtors)
    ___dtors_end = .;
  }
  .robsdsets : {
    /* for pre rtems-libbsd FreeBSD code */
    __start_set_sysctl_set = .;
    *(set_sysctl_*);
    __stop_set_sysctl_set = .;
    *(set_domain_*);
    *(set_pseudo_*);

    /* for rtems-libbsd FreeBSD code */
    __bsd__start_set_modmetadata_set = .;
    *(_bsd_set_modmetadata_set);
    __bsd__stop_set_modmetadata_set = .;

    __bsd__start_set_sysctl_set = .;
    *(_bsd_set_sysctl_set);
    __bsd__stop_set_sysctl_set = .;

    __bsd__start_set_sysinit_set = .;
    *(_bsd_set_sysinit_*);
    __bsd__stop_set_sysinit_set = .;

    _bsp_section_rodata_end = .;
  } >ram

  .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 .bss* .gnu.linkonce.b*)
   *(COMMON)
  } > ram
  _end = . ;
  PROVIDE (end = .);

  .stack : { 
    . += 0x1000;
    *(.stack)
    _stack = .;
  } > ram
  _stack = .;

  _WorkAreaBase = . ;

  _CPU_Interrupt_stack_low  = 0x00080000 ;
  _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 0x00081ff0 : { _stack = .; *(.stack) } > onchip_ram
*/
  /* These must appear regardless of  .  */
}