Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * Linker script for vsyscall DSO.  The vsyscall page is an ELF shared

 * object prelinked to its virtual address, and with only one read-only

 * segment (that fits in one page).  This script controls its layout.

 */

#include 

SECTIONS

{

  . = VDSO_PRELINK_asm + SIZEOF_HEADERS;

  .hash           : { *(.hash) }                :text

  .gnu.hash       : { *(.gnu.hash) }

  .dynsym         : { *(.dynsym) }

  .dynstr         : { *(.dynstr) }

  .gnu.version    : { *(.gnu.version) }

  .gnu.version_d  : { *(.gnu.version_d) }

  .gnu.version_r  : { *(.gnu.version_r) }

  /* This linker script is used both with -r and with -shared.

     For the layouts to match, we need to skip more than enough

     space for the dynamic symbol table et al.  If this amount

     is insufficient, ld -shared will barf.  Just increase it here.  */

  . = VDSO_PRELINK_asm + 0x400;

  .text           : { *(.text) }                :text =0x90909090

  .note           : { *(.note.*) }              :text :note

  .eh_frame_hdr   : { *(.eh_frame_hdr) }        :text :eh_frame_hdr

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

  .dynamic        : { *(.dynamic) }             :text :dynamic

  .useless        : {

        *(.got.plt) *(.got)

        *(.data .data.* .gnu.linkonce.d.*)

        *(.dynbss)

        *(.bss .bss.* .gnu.linkonce.b.*)

  }                                             :text

}

/*

 * We must supply the ELF program headers explicitly to get just one

 * PT_LOAD segment, and set the flags explicitly to make segments read-only.

 */

PHDRS

{

  text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */

  dynamic PT_DYNAMIC FLAGS(4); /* PF_R */

  note PT_NOTE FLAGS(4); /* PF_R */

  eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */

}

/*

 * This controls what symbols we export from the DSO.

 */

VERSION

{

  LINUX_2.5 {

    global:

        __kernel_vsyscall;

        __kernel_sigreturn;

        __kernel_rt_sigreturn;

    local: *;

  };

}

/* The ELF entry point can be used to set the AT_SYSINFO value.  */

ENTRY(__kernel_vsyscall);