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      1 /* Script for ld -pie: link position independent executable */
      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-littleaarch64", "elf64-bigaarch64",
      7 	      "elf64-littleaarch64")
      8 OUTPUT_ARCH(aarch64)
      9 ENTRY(_start)
     10 SECTIONS
     11 {
     12   /* Read-only sections, merged into text segment: */
     13   PROVIDE (__executable_start = 0); . = 0 + SIZEOF_HEADERS;
     14   .interp         : { *(.interp) }
     15   .note.gnu.build-id : { *(.note.gnu.build-id) }
     16   .hash           : { *(.hash) }
     17   .gnu.hash       : { *(.gnu.hash) }
     18   .dynsym         : { *(.dynsym) }
     19   .dynstr         : { *(.dynstr) }
     20   .gnu.version    : { *(.gnu.version) }
     21   .gnu.version_d  : { *(.gnu.version_d) }
     22   .gnu.version_r  : { *(.gnu.version_r) }
     23   .rela.init      : { *(.rela.init) }
     24   .rela.text      : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
     25   .rela.fini      : { *(.rela.fini) }
     26   .rela.rodata    : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
     27   .rela.data.rel.ro   : { *(.rela.data.rel.ro .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*) }
     28   .rela.data      : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
     29   .rela.tdata	  : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
     30   .rela.tbss	  : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
     31   .rela.ctors     : { *(.rela.ctors) }
     32   .rela.dtors     : { *(.rela.dtors) }
     33   .rela.got       : { *(.rela.got) }
     34   .rela.bss       : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
     35   .rela.ifunc     : { *(.rela.ifunc) }
     36   .rela.plt       :
     37     {
     38       *(.rela.plt)
     39       PROVIDE_HIDDEN (__rela_iplt_start = .);
     40       *(.rela.iplt)
     41       PROVIDE_HIDDEN (__rela_iplt_end = .);
     42     }
     43   .init           :
     44   {
     45     KEEP (*(SORT_NONE(.init)))
     46   } =0
     47   .plt            : ALIGN(16) { *(.plt) *(.iplt) }
     48   .text           :
     49   {
     50     *(.text.unlikely .text.*_unlikely .text.unlikely.*)
     51     *(.text.exit .text.exit.*)
     52     *(.text.startup .text.startup.*)
     53     *(.text.hot .text.hot.*)
     54     *(.text .stub .text.* .gnu.linkonce.t.*)
     55     /* .gnu.warning sections are handled specially by elf32.em.  */
     56     *(.gnu.warning)
     57   } =0
     58   .fini           :
     59   {
     60     KEEP (*(SORT_NONE(.fini)))
     61   } =0
     62   PROVIDE (__etext = .);
     63   PROVIDE (_etext = .);
     64   PROVIDE (etext = .);
     65   .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
     66   .rodata1        : { *(.rodata1) }
     67   .eh_frame_hdr : { *(.eh_frame_hdr) }
     68   .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
     69   .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table
     70   .gcc_except_table.*) }
     71   /* These sections are generated by the Sun/Oracle C++ compiler.  */
     72   .exception_ranges   : ONLY_IF_RO { *(.exception_ranges
     73   .exception_ranges*) }
     74   /* Adjust the address for the data segment.  For 32 bits we want to align
     75   at exactly a page boundary to make life easier for apriori. */
     76   . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
     77   /* Exception handling  */
     78   .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
     79   .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
     80   .exception_ranges   : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
     81   /* Thread Local Storage sections  */
     82   .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
     83   .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
     84   /* Ensure the __preinit_array_start label is properly aligned.  We
     85      could instead move the label definition inside the section, but
     86      the linker would then create the section even if it turns out to
     87      be empty, which isn't pretty.  */
     88   . = ALIGN(64 / 8);
     89   PROVIDE_HIDDEN (__preinit_array_start = .);
     90   .preinit_array     :
     91   {
     92     KEEP (*(.preinit_array))
     93   }
     94   PROVIDE_HIDDEN (__preinit_array_end = .);
     95   PROVIDE_HIDDEN (__init_array_start = .);
     96   .init_array     :
     97   {
     98     KEEP (*crtbegin*.o(.init_array))
     99     KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
    100     KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors))
    101   }
    102   PROVIDE_HIDDEN (__init_array_end = .);
    103   PROVIDE_HIDDEN (__fini_array_start = .);
    104   .fini_array     :
    105   {
    106     KEEP (*crtbegin*.o(.fini_array))
    107     KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
    108     KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors))
    109   }
    110   PROVIDE_HIDDEN (__fini_array_end = .);
    111   .ctors          :
    112   {
    113     /* gcc uses crtbegin.o to find the start of
    114        the constructors, so we make sure it is
    115        first.  Because this is a wildcard, it
    116        doesn't matter if the user does not
    117        actually link against crtbegin.o; the
    118        linker won't look for a file to match a
    119        wildcard.  The wildcard also means that it
    120        doesn't matter which directory crtbegin.o
    121        is in.  */
    122     KEEP (*crtbegin.o(.ctors))
    123     KEEP (*crtbegin*.o(.ctors))
    124     /* We don't want to include the .ctor section from
    125        the crtend.o file until after the sorted ctors.
    126        The .ctor section from the crtend file contains the
    127        end of ctors marker and it must be last */
    128     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors))
    129     KEEP (*(SORT(.ctors.*)))
    130     KEEP (*(.ctors))
    131   }
    132   .dtors          :
    133   {
    134     KEEP (*crtbegin.o(.dtors))
    135     KEEP (*crtbegin*.o(.dtors))
    136     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors))
    137     KEEP (*(SORT(.dtors.*)))
    138     KEEP (*(.dtors))
    139   }
    140   .jcr            : { KEEP (*(.jcr)) }
    141   .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
    142   .dynamic        : { *(.dynamic) }
    143   .got            : { *(.got) *(.igot) }
    144   . = DATA_SEGMENT_RELRO_END (24, .);
    145   .got.plt        : { *(.got.plt)  *(.igot.plt) }
    146   .data           :
    147   {
    148     PROVIDE (__data_start = .);
    149     *(.data .data.* .gnu.linkonce.d.*)
    150     SORT(CONSTRUCTORS)
    151   }
    152   .data1          : { *(.data1) }
    153   _edata = .; PROVIDE (edata = .);
    154   __bss_start = .;
    155   __bss_start__ = .;
    156   .bss            :
    157   {
    158    *(.dynbss)
    159    *(.bss .bss.* .gnu.linkonce.b.*)
    160    *(COMMON)
    161    /* Align here to ensure that the .bss section occupies space up to
    162       _end.  Align after .bss to ensure correct alignment even if the
    163       .bss section disappears because there are no input sections.  */
    164    . = ALIGN(64 / 8);
    165   }
    166   _bss_end__ = . ; __bss_end__ = . ;
    167   . = ALIGN(64 / 8);
    168   . = SEGMENT_START("ldata-segment", .);
    169   . = ALIGN(64 / 8);
    170   __end__ = . ;
    171   _end = .;
    172   _bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
    173   PROVIDE (end = .);
    174   . = DATA_SEGMENT_END (.);
    175   /* Stabs debugging sections.  */
    176   .stab          0 : { *(.stab) }
    177   .stabstr       0 : { *(.stabstr) }
    178   .stab.excl     0 : { *(.stab.excl) }
    179   .stab.exclstr  0 : { *(.stab.exclstr) }
    180   .stab.index    0 : { *(.stab.index) }
    181   .stab.indexstr 0 : { *(.stab.indexstr) }
    182   .comment       0 : { *(.comment) }
    183   /* DWARF debug sections.
    184      Symbols in the DWARF debugging sections are relative to the beginning
    185      of the section so we begin them at 0.  */
    186   /* DWARF 1 */
    187   .debug          0 : { *(.debug) }
    188   .line           0 : { *(.line) }
    189   /* GNU DWARF 1 extensions */
    190   .debug_srcinfo  0 : { *(.debug_srcinfo) }
    191   .debug_sfnames  0 : { *(.debug_sfnames) }
    192   /* DWARF 1.1 and DWARF 2 */
    193   .debug_aranges  0 : { *(.debug_aranges) }
    194   .debug_pubnames 0 : { *(.debug_pubnames) }
    195   /* DWARF 2 */
    196   .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
    197   .debug_abbrev   0 : { *(.debug_abbrev) }
    198   .debug_line     0 : { *(.debug_line .debug_line.* .debug_line_end ) }
    199   .debug_frame    0 : { *(.debug_frame) }
    200   .debug_str      0 : { *(.debug_str) }
    201   .debug_loc      0 : { *(.debug_loc) }
    202   .debug_macinfo  0 : { *(.debug_macinfo) }
    203   /* SGI/MIPS DWARF 2 extensions */
    204   .debug_weaknames 0 : { *(.debug_weaknames) }
    205   .debug_funcnames 0 : { *(.debug_funcnames) }
    206   .debug_typenames 0 : { *(.debug_typenames) }
    207   .debug_varnames  0 : { *(.debug_varnames) }
    208   /* DWARF 3 */
    209   .debug_pubtypes 0 : { *(.debug_pubtypes) }
    210   .debug_ranges   0 : { *(.debug_ranges) }
    211   /* DWARF Extension.  */
    212   .debug_macro    0 : { *(.debug_macro) }
    213   .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }
    214   .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
    215   /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) }
    216 }
    217