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      1 /* -----------------------------------------------------------------------
      2  *
      3  *   Copyright 2009 Intel Corporation; author: H. Peter Anvin
      4  *
      5  *   This program is free software; you can redistribute it and/or modify
      6  *   it under the terms of the GNU General Public License as published by
      7  *   the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
      8  *   Boston MA 02110-1301, USA; either version 2 of the License, or
      9  *   (at your option) any later version; incorporated herein by reference.
     10  *
     11  * ----------------------------------------------------------------------- */
     12 
     13 /*
     14  * Linker script for MEMDISK
     15  */
     16 
     17 /* Script for -z combreloc: combine and sort reloc sections */
     18 OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
     19 OUTPUT_ARCH(i386)
     20 EXTERN(_start)
     21 ENTRY(_start)
     22 SECTIONS
     23 {
     24   /* Read-only sections, merged into text segment: */
     25   . = 0x100000;
     26   PROVIDE (__executable_start = .);
     27 
     28   .init           :
     29   {
     30     KEEP (*(.init))
     31   } =0x90909090
     32   .text           :
     33   {
     34     *(.text .stub .text.* .gnu.linkonce.t.*)
     35     /* .gnu.warning sections are handled specially by elf32.em.  */
     36     *(.gnu.warning)
     37   } =0x90909090
     38   .fini           :
     39   {
     40     KEEP (*(.fini))
     41   } =0x90909090
     42   PROVIDE (__etext = .);
     43   PROVIDE (_etext = .);
     44   PROVIDE (etext = .);
     45   .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
     46   .rodata1        : { *(.rodata1) }
     47 
     48   /* Ensure the __preinit_array_start label is properly aligned.  We
     49      could instead move the label definition inside the section, but
     50      the linker would then create the section even if it turns out to
     51      be empty, which isn't pretty.  */
     52   . = ALIGN(4);
     53   PROVIDE (__preinit_array_start = .);
     54   .preinit_array     : { *(.preinit_array) }
     55   PROVIDE (__preinit_array_end = .);
     56   PROVIDE (__init_array_start = .);
     57   .init_array     : { *(.init_array) }
     58   PROVIDE (__init_array_end = .);
     59   PROVIDE (__fini_array_start = .);
     60   .fini_array     : { *(.fini_array) }
     61   PROVIDE (__fini_array_end = .);
     62   PROVIDE (__ctors_start = .);
     63   .ctors          :
     64   {
     65     KEEP (*(SORT(.ctors.*)))
     66     KEEP (*(.ctors))
     67   }
     68   PROVIDE (__ctors_end = .);
     69   PROVIDE (__dtors_start = .);
     70   .dtors          :
     71   {
     72     KEEP (*(SORT(.dtors.*)))
     73     KEEP (*(.dtors))
     74   }
     75   PROVIDE (__dtors_end = .);
     76 
     77   /* Adjust the address for the data segment.  Avoid mixing code and
     78      data within same 128-byte chunk. */
     79   . = ALIGN(128);
     80 
     81   .data           :
     82   {
     83     *(.data .data.* .gnu.linkonce.d.*)
     84     SORT(CONSTRUCTORS)
     85   }
     86   .data1          : { *(.data1) }
     87   _edata = .;
     88   PROVIDE (edata = .);
     89   . = ALIGN(16);
     90   .bss            :
     91   {
     92    __bss_start = .;
     93    *(.dynbss)
     94    *(.bss .bss.* .gnu.linkonce.b.*)
     95    *(COMMON)
     96    /* Align here to ensure that the .bss section occupies space up to
     97       _end.  Align after .bss to ensure correct alignment even if the
     98       .bss section disappears because there are no input sections.  */
     99    . = ALIGN(4);
    100    __bss_end = .;
    101   }
    102   _end = .;
    103   PROVIDE (end = .);
    104 
    105 
    106   /* Stabs debugging sections.  */
    107   .stab          0 : { *(.stab) }
    108   .stabstr       0 : { *(.stabstr) }
    109   .stab.excl     0 : { *(.stab.excl) }
    110   .stab.exclstr  0 : { *(.stab.exclstr) }
    111   .stab.index    0 : { *(.stab.index) }
    112   .stab.indexstr 0 : { *(.stab.indexstr) }
    113   .comment       0 : { *(.comment) }
    114   /* DWARF debug sections.
    115      Symbols in the DWARF debugging sections are relative to the beginning
    116      of the section so we begin them at 0.  */
    117   /* DWARF 1 */
    118   .debug          0 : { *(.debug) }
    119   .line           0 : { *(.line) }
    120   /* GNU DWARF 1 extensions */
    121   .debug_srcinfo  0 : { *(.debug_srcinfo) }
    122   .debug_sfnames  0 : { *(.debug_sfnames) }
    123   /* DWARF 1.1 and DWARF 2 */
    124   .debug_aranges  0 : { *(.debug_aranges) }
    125   .debug_pubnames 0 : { *(.debug_pubnames) }
    126   /* DWARF 2 */
    127   .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
    128   .debug_abbrev   0 : { *(.debug_abbrev) }
    129   .debug_line     0 : { *(.debug_line) }
    130   .debug_frame    0 : { *(.debug_frame) }
    131   .debug_str      0 : { *(.debug_str) }
    132   .debug_loc      0 : { *(.debug_loc) }
    133   .debug_macinfo  0 : { *(.debug_macinfo) }
    134   /* SGI/MIPS DWARF 2 extensions */
    135   .debug_weaknames 0 : { *(.debug_weaknames) }
    136   .debug_funcnames 0 : { *(.debug_funcnames) }
    137   .debug_typenames 0 : { *(.debug_typenames) }
    138   .debug_varnames  0 : { *(.debug_varnames) }
    139   /DISCARD/ : { *(.note.GNU-stack) }
    140 }
    141