freebsd-skq/sys/conf/ldscript.mips.cfe

/*-
 * Copyright (c) 2001, 2004, 2008, Juniper Networks, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Juniper Networks, Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY JUNIPER NETWORKS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL JUNIPER NETWORKS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	JNPR: ldscript.mips,v 1.3 2006/10/11 06:12:04
 * $FreeBSD$
 */

/*
 * This linker script is needed to build a kernel for use by Broadcom CFE
 * when loaded over TFTP; its ELF loader does not support backwards seek
 * on network I/O streams.
 * Furthermore, CFE will only load PT_LOAD segments, therefore the dynamic
 * sections must be placed in their own segment.
 */

ENTRY(_start)
SEARCH_DIR(/usr/lib);

PHDRS
{
 headers PT_PHDR FILEHDR PHDRS ;
 interp PT_INTERP ;
 text PT_LOAD ;
 dynamic PT_LOAD ;
 data PT_LOAD ;
}

SECTIONS
{
  /* Read-only sections, merged into text segment: */
  . = KERNLOADADDR ;
  .interp     : { *(.interp) 	} :interp
  .hash          : { *(.hash)		} :text
  .dynsym        : { *(.dynsym)		}
  .dynstr        : { *(.dynstr)		}
  .gnu.version   : { *(.gnu.version)	}
  .gnu.version_d   : { *(.gnu.version_d)	}
  .gnu.version_r   : { *(.gnu.version_r)	}
  .rel.init      : { *(.rel.init)	}
  .rela.init     : { *(.rela.init)	}
  .rel.text      :
    {
      *(.rel.text)
      *(.rel.text.*)
      *(.rel.gnu.linkonce.t.*)
    }
  .rela.text     :
    {
      *(.rela.text)
      *(.rela.text.*)
      *(.rela.gnu.linkonce.t.*)
    }
  .rel.fini      : { *(.rel.fini)	}
  .rela.fini     : { *(.rela.fini)	}
  .rel.rodata    :
    {
      *(.rel.rodata)
      *(.rel.rodata.*)
      *(.rel.gnu.linkonce.r.*)
    }
  .rela.rodata   :
    {
      *(.rela.rodata)
      *(.rela.rodata.*)
      *(.rela.gnu.linkonce.r.*)
    }
  .rel.data      :
    {
      *(.rel.data)
      *(.rel.data.*)
      *(.rel.gnu.linkonce.d.*)
    }
  .rela.data     :
    {
      *(.rela.data)
      *(.rela.data.*)
      *(.rela.gnu.linkonce.d.*)
    }
  .rel.ctors     : { *(.rel.ctors)	}
  .rela.ctors    : { *(.rela.ctors)	}
  .rel.dtors     : { *(.rel.dtors)	}
  .rela.dtors    : { *(.rela.dtors)	}
  .rel.got       : { *(.rel.got)		}
  .rela.got      : { *(.rela.got)		}
  .rel.sdata     :
    {
      *(.rel.sdata)
      *(.rel.sdata.*)
      *(.rel.gnu.linkonce.s.*)
    }
  .rela.sdata     :
    {
      *(.rela.sdata)
      *(.rela.sdata.*)
      *(.rela.gnu.linkonce.s.*)
    }
  .rel.sbss      :
    { 
      *(.rel.sbss)
      *(.rel.sbss.*)
      *(.rel.gnu.linkonce.sb.*)
    }
  .rela.sbss     :
    {
      *(.rela.sbss)
      *(.rela.sbss.*)
      *(.rel.gnu.linkonce.sb.*)
    }
  .rel.sdata2    : 
    { 
      *(.rel.sdata2)
      *(.rel.sdata2.*)
      *(.rel.gnu.linkonce.s2.*)
    }
  .rela.sdata2   : 
    {
      *(.rela.sdata2)
      *(.rela.sdata2.*)
      *(.rela.gnu.linkonce.s2.*)
    }
  .rel.sbss2     : 
    { 
      *(.rel.sbss2)	
      *(.rel.sbss2.*)
      *(.rel.gnu.linkonce.sb2.*)
    }
  .rela.sbss2    : 
    { 
      *(.rela.sbss2)	
      *(.rela.sbss2.*)
      *(.rela.gnu.linkonce.sb2.*)
    }
  .rel.bss       : 
    { 
      *(.rel.bss)
      *(.rel.bss.*)
      *(.rel.gnu.linkonce.b.*)
    }
  .rela.bss      : 
    { 
      *(.rela.bss)
      *(.rela.bss.*)
      *(.rela.gnu.linkonce.b.*)
    }
  .rel.plt       : { *(.rel.plt)		}
  .rela.plt      : { *(.rela.plt)		}
  .init          : 
  { 
    KEEP (*(.init))
  } :text =0x1000000
  .text      :
  {
    *(.trap)
    *(.text)
    *(.text.*)
    *(.stub)
    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
    *(.gnu.linkonce.t.*)
  } =0x1000000
  .fini      :
  {
    KEEP (*(.fini))
  } =0x1000000
  PROVIDE (__etext = .);
  PROVIDE (_etext = .);
  PROVIDE (etext = .);
  .rodata   : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r.*) }
  .rodata1   : { *(.rodata1) }
  .reginfo : { *(.reginfo) }
  .sdata2   : { *(.sdata2) *(.sdata2.*) *(.gnu.linkonce.s2.*) }
  .sbss2   : { *(.sbss2) *(.sbss2.*) *(.gnu.linkonce.sb2.*) }
  . = ALIGN(0x2000) + (. & (0x2000 - 1));
  .data    :
  {
    *(.data)
    *(.data.*)
    *(.gnu.linkonce.d.*)
    SORT(CONSTRUCTORS)
  } :data
  .data1   : { *(.data1) }
  .eh_frame : { KEEP (*(.eh_frame)) }
  .gcc_except_table : { *(.gcc_except_table) }
  .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))
  }
  .plt      : { *(.plt)	}
  _gp = ALIGN(16) + 0x7ff0;
  .got		  : { *(.got.plt) *(.got) }
  .dynamic       : { *(.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) 
    *(.sdata.*)
    *(.gnu.linkonce.s.*)
  }
  _edata = .;
  PROVIDE (edata = .);
  __bss_start = .;
  .sbss      :
  {
    PROVIDE (__sbss_start = .);
    PROVIDE (___sbss_start = .);
    *(.dynsbss)
    *(.sbss)
    *(.sbss.*)
    *(.gnu.linkonce.sb.*)
    *(.scommon)
    PROVIDE (__sbss_end = .);
    PROVIDE (___sbss_end = .);
  }
  .bss       :
  {
   *(.dynbss)
   *(.bss)
   *(.bss.*)
   *(.gnu.linkonce.b.*)
   *(COMMON)
   /* Align here to ensure that the .bss section occupies space up to
      _end.  Align after .bss to ensure correct alignment even if the
      .bss section disappears because there are no input sections.  */
   . = ALIGN(64 / 8);
  }
  . = ALIGN(64 / 8);
  _end = .;
  PROVIDE (end = .);
  /* 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) *(.gnu.linkonce.wi.*) }
  .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) }
  /* These must appear regardless of  .  */
}