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      1 /* Script for ld --shared: link shared library */
      2 /* Copyright (C) 2014 Free Software Foundation, Inc.
      3    Copying and distribution of this script, with or without modification,
      4    are permitted in any medium without royalty provided the copyright
      5    notice and this notice are preserved.  */
      6 OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64",
      7 	      "elf64-x86-64")
      8 OUTPUT_ARCH(i386:x86-64)
      9 ENTRY(_start)
     10 SECTIONS
     11 {
     12   /* Read-only sections, merged into text segment: */
     13   . = 0 + SIZEOF_HEADERS;
     14   .note.gnu.build-id : { *(.note.gnu.build-id) }
     15   .hash           : { *(.hash) }
     16   .gnu.hash       : { *(.gnu.hash) }
     17   .dynsym         : { *(.dynsym) }
     18   .dynstr         : { *(.dynstr) }
     19   .gnu.version    : { *(.gnu.version) }
     20   .gnu.version_d  : { *(.gnu.version_d) }
     21   .gnu.version_r  : { *(.gnu.version_r) }
     22   .rela.init      : { *(.rela.init) }
     23   .rela.text      : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
     24   .rela.fini      : { *(.rela.fini) }
     25   .rela.rodata    : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
     26   .rela.data.rel.ro   : { *(.rela.data.rel.ro .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*) }
     27   .rela.data      : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
     28   .rela.tdata	  : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
     29   .rela.tbss	  : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
     30   .rela.ctors     : { *(.rela.ctors) }
     31   .rela.dtors     : { *(.rela.dtors) }
     32   .rela.got       : { *(.rela.got) }
     33   .rela.bss       : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
     34   .rela.ldata     : { *(.rela.ldata .rela.ldata.* .rela.gnu.linkonce.l.*) }
     35   .rela.lbss      : { *(.rela.lbss .rela.lbss.* .rela.gnu.linkonce.lb.*) }
     36   .rela.lrodata   : { *(.rela.lrodata .rela.lrodata.* .rela.gnu.linkonce.lr.*) }
     37   .rela.ifunc     : { *(.rela.ifunc) }
     38   .rela.plt       :
     39     {
     40       *(.rela.plt)
     41       *(.rela.iplt)
     42     }
     43   .init           :
     44   {
     45     KEEP (*(SORT_NONE(.init)))
     46   }
     47   .plt            : { *(.plt) *(.iplt) }
     48   .plt.bnd        : { *(.plt.bnd) }
     49   .text           :
     50   {
     51     *(.text.unlikely .text.*_unlikely .text.unlikely.*)
     52     *(.text.exit .text.exit.*)
     53     *(.text.startup .text.startup.*)
     54     *(.text.hot .text.hot.*)
     55     *(.text .stub .text.* .gnu.linkonce.t.*)
     56     /* .gnu.warning sections are handled specially by elf32.em.  */
     57     *(.gnu.warning)
     58   }
     59   .fini           :
     60   {
     61     KEEP (*(SORT_NONE(.fini)))
     62   }
     63   PROVIDE (__etext = .);
     64   PROVIDE (_etext = .);
     65   PROVIDE (etext = .);
     66   .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
     67   .rodata1        : { *(.rodata1) }
     68   .eh_frame_hdr : { *(.eh_frame_hdr) }
     69   .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
     70   .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table
     71   .gcc_except_table.*) }
     72   /* These sections are generated by the Sun/Oracle C++ compiler.  */
     73   .exception_ranges   : ONLY_IF_RO { *(.exception_ranges
     74   .exception_ranges*) }
     75   /* Adjust the address for the data segment.  For 32 bits we want to align
     76   at exactly a page boundary to make life easier for apriori. */
     77   . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
     78   /* Exception handling  */
     79   .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
     80   .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
     81   .exception_ranges   : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
     82   /* Thread Local Storage sections  */
     83   .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
     84   .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
     85   /* Ensure the __preinit_array_start label is properly aligned.  We
     86      could instead move the label definition inside the section, but
     87      the linker would then create the section even if it turns out to
     88      be empty, which isn't pretty.  */
     89   . = ALIGN(64 / 8);
     90   .preinit_array     :
     91   {
     92     KEEP (*(.preinit_array))
     93   }
     94   .init_array     :
     95   {
     96     KEEP (*crtbegin*.o(.init_array))
     97     KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
     98     KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors))
     99   }
    100   .fini_array     :
    101   {
    102     KEEP (*crtbegin*.o(.fini_array))
    103     KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
    104     KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors))
    105   }
    106   .ctors          :
    107   {
    108     /* gcc uses crtbegin.o to find the start of
    109        the constructors, so we make sure it is
    110        first.  Because this is a wildcard, it
    111        doesn't matter if the user does not
    112        actually link against crtbegin.o; the
    113        linker won't look for a file to match a
    114        wildcard.  The wildcard also means that it
    115        doesn't matter which directory crtbegin.o
    116        is in.  */
    117     KEEP (*crtbegin.o(.ctors))
    118     KEEP (*crtbegin*.o(.ctors))
    119     /* We don't want to include the .ctor section from
    120        the crtend.o file until after the sorted ctors.
    121        The .ctor section from the crtend file contains the
    122        end of ctors marker and it must be last */
    123     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors))
    124     KEEP (*(SORT(.ctors.*)))
    125     KEEP (*(.ctors))
    126   }
    127   .dtors          :
    128   {
    129     KEEP (*crtbegin.o(.dtors))
    130     KEEP (*crtbegin*.o(.dtors))
    131     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors))
    132     KEEP (*(SORT(.dtors.*)))
    133     KEEP (*(.dtors))
    134   }
    135   .jcr            : { KEEP (*(.jcr)) }
    136   .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
    137   .dynamic        : { *(.dynamic) }
    138   .got            : { *(.got) *(.igot) }
    139   . = DATA_SEGMENT_RELRO_END (SIZEOF (.got.plt) >= 24 ? 24 : 0, .);
    140   .got.plt        : { *(.got.plt)  *(.igot.plt) }
    141   .data           :
    142   {
    143     *(.data .data.* .gnu.linkonce.d.*)
    144     SORT(CONSTRUCTORS)
    145   }
    146   .data1          : { *(.data1) }
    147   _edata = .; PROVIDE (edata = .);
    148   __bss_start = .;
    149   .bss            :
    150   {
    151    *(.dynbss)
    152    *(.bss .bss.* .gnu.linkonce.b.*)
    153    *(COMMON)
    154    /* Align here to ensure that the .bss section occupies space up to
    155       _end.  Align after .bss to ensure correct alignment even if the
    156       .bss section disappears because there are no input sections.  */
    157    . = ALIGN(64 / 8);
    158   }
    159   .lbss   :
    160   {
    161     *(.dynlbss)
    162     *(.lbss .lbss.* .gnu.linkonce.lb.*)
    163     *(LARGE_COMMON)
    164   }
    165   . = ALIGN(64 / 8);
    166   . = SEGMENT_START("ldata-segment", .);
    167   .lrodata   ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) :
    168   {
    169     *(.lrodata .lrodata.* .gnu.linkonce.lr.*)
    170   }
    171   .ldata   ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) :
    172   {
    173     *(.ldata .ldata.* .gnu.linkonce.l.*)
    174     . = ALIGN(. != 0 ? 64 / 8 : 1);
    175   }
    176   . = ALIGN(64 / 8);
    177   _end = .;
    178   _bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
    179   PROVIDE (end = .);
    180   . = DATA_SEGMENT_END (.);
    181   /* Stabs debugging sections.  */
    182   .stab          0 : { *(.stab) }
    183   .stabstr       0 : { *(.stabstr) }
    184   .stab.excl     0 : { *(.stab.excl) }
    185   .stab.exclstr  0 : { *(.stab.exclstr) }
    186   .stab.index    0 : { *(.stab.index) }
    187   .stab.indexstr 0 : { *(.stab.indexstr) }
    188   .comment       0 : { *(.comment) }
    189   /* DWARF debug sections.
    190      Symbols in the DWARF debugging sections are relative to the beginning
    191      of the section so we begin them at 0.  */
    192   /* DWARF 1 */
    193   .debug          0 : { *(.debug) }
    194   .line           0 : { *(.line) }
    195   /* GNU DWARF 1 extensions */
    196   .debug_srcinfo  0 : { *(.debug_srcinfo) }
    197   .debug_sfnames  0 : { *(.debug_sfnames) }
    198   /* DWARF 1.1 and DWARF 2 */
    199   .debug_aranges  0 : { *(.debug_aranges) }
    200   .debug_pubnames 0 : { *(.debug_pubnames) }
    201   /* DWARF 2 */
    202   .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
    203   .debug_abbrev   0 : { *(.debug_abbrev) }
    204   .debug_line     0 : { *(.debug_line .debug_line.* .debug_line_end ) }
    205   .debug_frame    0 : { *(.debug_frame) }
    206   .debug_str      0 : { *(.debug_str) }
    207   .debug_loc      0 : { *(.debug_loc) }
    208   .debug_macinfo  0 : { *(.debug_macinfo) }
    209   /* SGI/MIPS DWARF 2 extensions */
    210   .debug_weaknames 0 : { *(.debug_weaknames) }
    211   .debug_funcnames 0 : { *(.debug_funcnames) }
    212   .debug_typenames 0 : { *(.debug_typenames) }
    213   .debug_varnames  0 : { *(.debug_varnames) }
    214   /* DWARF 3 */
    215   .debug_pubtypes 0 : { *(.debug_pubtypes) }
    216   .debug_ranges   0 : { *(.debug_ranges) }
    217   /* DWARF Extension.  */
    218   .debug_macro    0 : { *(.debug_macro) }
    219   .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
    220   /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) }
    221 }
    222