Subversion Repositories openrisc_2011-10-31

/* The following TEXT start address leaves space for the monitor

   workspace.  This linker script links ISA64r2 programs for use with the

   simulator.  We set the ISA explicitly so that we can link objects of

   different ISAs that are subsets of ISA64r2 but are not extensions of

   each other (e.g., MIPS32r2 and MIPS64).  */

ENTRY(_start)

OUTPUT_ARCH("mips:isa64r2")

OUTPUT_FORMAT("elf32-littlemips", "elf32-bigmips", "elf32-littlemips")

GROUP(-lc -lidt -lgcc)

SEARCH_DIR(.)

__DYNAMIC  =  0;

STARTUP(crt0.o)

/*

 * Allocate the stack to be at the top of memory, since the stack

 * grows down

 */

PROVIDE (__stack = 0);

/* PROVIDE (__global = 0); */

/*

 * Initalize some symbols to be zero so we can reference them in the

 * crt0 without core dumping. These functions are all optional, but

 * we do this so we can have our crt0 always use them if they exist.

 * This is so BSPs work better when using the crt0 installed with gcc.

 * We have to initalize them twice, so we multiple object file

 * formats, as some prepend an underscore.

 */

PROVIDE (hardware_exit_hook = 0);

PROVIDE (hardware_hazard_hook = 0);

PROVIDE (hardware_init_hook = 0);

PROVIDE (software_init_hook = 0);

SECTIONS

{

  . = 0x80020000;

  .text : {

     _ftext = . ;

    PROVIDE (eprol  =  .);

    *(.text)

    *(.text.*)

    *(.gnu.linkonce.t.*)

    *(.mips16.fn.*)

    *(.mips16.call.*)

  }

  .init : {

    KEEP (*(.init))

  }

  .fini : {

    KEEP (*(.fini))

  }

  .rel.sdata : {

    PROVIDE (__runtime_reloc_start = .);

    *(.rel.sdata)

    PROVIDE (__runtime_reloc_stop = .);

  }

  PROVIDE (etext  =  .);

  _etext  =  .;

  .eh_frame_hdr : { *(.eh_frame_hdr) }

  .eh_frame : { KEEP (*(.eh_frame)) }

  .gcc_except_table : { *(.gcc_except_table) }

  .jcr : { KEEP (*(.jcr)) }

  .ctors    :

  {

    /* gcc uses crtbegin.o to find the start of

       the constructors, 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.  */

    KEEP (*crtbegin.o(.ctors))

    /* We don't want to include the .ctor section from

       from the crtend.o file until after the sorted ctors.

       The .ctor section from the crtend file contains the

       end of ctors marker and it must be last */

    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))

    KEEP (*(SORT(.ctors.*)))

    KEEP (*(.ctors))

  }

  .dtors    :

  {

    KEEP (*crtbegin.o(.dtors))

    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))

    KEEP (*(SORT(.dtors.*)))

    KEEP (*(.dtors))

  }

  . = .;

  .rodata : {

    *(.rdata)

    *(.rodata)

    *(.rodata.*)

    *(.gnu.linkonce.r.*)

  }

   _fdata = ALIGN(16);

  .data : {

    *(.data)

    *(.data.*)

    *(.gnu.linkonce.d.*)

  }

  . = ALIGN(8);

  _gp = . + 0x8000;

  __global = _gp;

  .lit8 : {

    *(.lit8)

  }

  .lit4 : {

    *(.lit4)

  }

  .sdata : {

    *(.sdata)

    *(.sdata.*)

    *(.gnu.linkonce.s.*)

  }

  . = ALIGN(4);

  PROVIDE (edata  =  .);

  _edata  =  .;

  _fbss = .;

  .sbss : {

    *(.sbss)

    *(.sbss.*)

    *(.gnu.linkonce.sb.*)

    *(.scommon)

  }

  .bss : {

    _bss_start = . ;

    *(.bss)

    *(.bss.*)

    *(.gnu.linkonce.b.*)

    *(COMMON)

  }

  PROVIDE (end = .);

  _end = .;

  /* 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) }

  .debug_ranges   0 : { *(.debug_ranges) }

  /* 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) }

  /* Special sections generated by gcc */

  /* Newer GNU linkers strip by default */

  .mdebug.abi32            0 : { KEEP(*(.mdebug.abi32)) }

  .mdebug.abiN32           0 : { KEEP(*(.mdebug.abiN32)) }

  .mdebug.abi64            0 : { KEEP(*(.mdebug.abi64)) }

  .mdebug.abiO64           0 : { KEEP(*(.mdebug.abiO64)) }

  .mdebug.eabi32           0 : { KEEP(*(.mdebug.eabi32)) }

  .mdebug.eabi64           0 : { KEEP(*(.mdebug.eabi64)) }

  .gcc_compiled_long32     0 : { KEEP(*(.gcc_compiled_long32)) }

  .gcc_compiled_long64     0 : { KEEP(*(.gcc_compiled_long64)) }

}