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      1 /* Script for -pie -z combreloc: position independent executable, combine & sort relocs */
      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("elf32-littleaarch64", "elf32-bigaarch64",
      7 	      "elf32-littleaarch64")
      8 OUTPUT_ARCH(aarch64:ilp32)
      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.dyn       :
     24     {
     25       *(.rela.init)
     26       *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
     27       *(.rela.fini)
     28       *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
     29       *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
     30       *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
     31       *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
     32       *(.rela.ctors)
     33       *(.rela.dtors)
     34       *(.rela.got)
     35       *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
     36       *(.rela.ifunc)
     37     }
     38   .rela.plt       :
     39     {
     40       *(.rela.plt)
     41       PROVIDE_HIDDEN (__rela_iplt_start = .);
     42       *(.rela.iplt)
     43       PROVIDE_HIDDEN (__rela_iplt_end = .);
     44     }
     45   .init           :
     46   {
     47     KEEP (*(SORT_NONE(.init)))
     48   } =0
     49   .plt            : ALIGN(16) { *(.plt) *(.iplt) }
     50   .text           :
     51   {
     52     *(.text.unlikely .text.*_unlikely .text.unlikely.*)
     53     *(.text.exit .text.exit.*)
     54     *(.text.startup .text.startup.*)
     55     *(.text.hot .text.hot.*)
     56     *(.text .stub .text.* .gnu.linkonce.t.*)
     57     /* .gnu.warning sections are handled specially by elf32.em.  */
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     64   PROVIDE (__etext = .);
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     70   .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
     71   .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table
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     73   /* These sections are generated by the Sun/Oracle C++ compiler.  */
     74   .exception_ranges   : ONLY_IF_RO { *(.exception_ranges
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     76   /* Adjust the address for the data segment.  For 32 bits we want to align
     77   at exactly a page boundary to make life easier for apriori. */
     78   . = ALIGN (CONSTANT (MAXPAGESIZE)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
     79   /* Exception handling  */
     80   .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
     81   .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
     82   .exception_ranges   : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
     83   /* Thread Local Storage sections  */
     84   .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
     85   .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
     86   /* Ensure the __preinit_array_start label is properly aligned.  We
     87      could instead move the label definition inside the section, but
     88      the linker would then create the section even if it turns out to
     89      be empty, which isn't pretty.  */
     90   . = ALIGN(32 / 8);
     91   PROVIDE_HIDDEN (__preinit_array_start = .);
     92   .preinit_array     :
     93   {
     94     KEEP (*(.preinit_array))
     95   }
     96   PROVIDE_HIDDEN (__preinit_array_end = .);
     97   PROVIDE_HIDDEN (__init_array_start = .);
     98   .init_array     :
     99   {
    100     KEEP (*crtbegin*.o(.init_array))
    101     KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
    102     KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors))
    103   }
    104   PROVIDE_HIDDEN (__init_array_end = .);
    105   PROVIDE_HIDDEN (__fini_array_start = .);
    106   .fini_array     :
    107   {
    108     KEEP (*crtbegin*.o(.fini_array))
    109     KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
    110     KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors))
    111   }
    112   PROVIDE_HIDDEN (__fini_array_end = .);
    113   .ctors          :
    114   {
    115     /* gcc uses crtbegin.o to find the start of
    116        the constructors, so we make sure it is
    117        first.  Because this is a wildcard, it
    118        doesn't matter if the user does not
    119        actually link against crtbegin.o; the
    120        linker won't look for a file to match a
    121        wildcard.  The wildcard also means that it
    122        doesn't matter which directory crtbegin.o
    123        is in.  */
    124     KEEP (*crtbegin.o(.ctors))
    125     KEEP (*crtbegin*.o(.ctors))
    126     /* We don't want to include the .ctor section from
    127        the crtend.o file until after the sorted ctors.
    128        The .ctor section from the crtend file contains the
    129        end of ctors marker and it must be last */
    130     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors))
    131     KEEP (*(SORT(.ctors.*)))
    132     KEEP (*(.ctors))
    133   }
    134   .dtors          :
    135   {
    136     KEEP (*crtbegin.o(.dtors))
    137     KEEP (*crtbegin*.o(.dtors))
    138     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors))
    139     KEEP (*(SORT(.dtors.*)))
    140     KEEP (*(.dtors))
    141   }
    142   .jcr            : { KEEP (*(.jcr)) }
    143   .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
    144   .dynamic        : { *(.dynamic) }
    145   .got            : { *(.got) *(.igot) }
    146   . = DATA_SEGMENT_RELRO_END (12, .);
    147   .got.plt        : { *(.got.plt)  *(.igot.plt) }
    148   .data           :
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    152     SORT(CONSTRUCTORS)
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    154   .data1          : { *(.data1) }
    155   _edata = .; PROVIDE (edata = .);
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    165       .bss section disappears because there are no input sections.  */
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    168   _bss_end__ = . ; __bss_end__ = . ;
    169   . = ALIGN(32 / 8);
    170   . = SEGMENT_START("ldata-segment", .);
    171   . = ALIGN(32 / 8);
    172   __end__ = . ;
    173   _end = .;
    174   _bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
    175   PROVIDE (end = .);
    176   . = DATA_SEGMENT_END (.);
    177   /* Stabs debugging sections.  */
    178   .stab          0 : { *(.stab) }
    179   .stabstr       0 : { *(.stabstr) }
    180   .stab.excl     0 : { *(.stab.excl) }
    181   .stab.exclstr  0 : { *(.stab.exclstr) }
    182   .stab.index    0 : { *(.stab.index) }
    183   .stab.indexstr 0 : { *(.stab.indexstr) }
    184   .comment       0 : { *(.comment) }
    185   /* DWARF debug sections.
    186      Symbols in the DWARF debugging sections are relative to the beginning
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    188   /* DWARF 1 */
    189   .debug          0 : { *(.debug) }
    190   .line           0 : { *(.line) }
    191   /* GNU DWARF 1 extensions */
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    193   .debug_sfnames  0 : { *(.debug_sfnames) }
    194   /* DWARF 1.1 and DWARF 2 */
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    196   .debug_pubnames 0 : { *(.debug_pubnames) }
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    198   .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
    199   .debug_abbrev   0 : { *(.debug_abbrev) }
    200   .debug_line     0 : { *(.debug_line .debug_line.* .debug_line_end ) }
    201   .debug_frame    0 : { *(.debug_frame) }
    202   .debug_str      0 : { *(.debug_str) }
    203   .debug_loc      0 : { *(.debug_loc) }
    204   .debug_macinfo  0 : { *(.debug_macinfo) }
    205   /* SGI/MIPS DWARF 2 extensions */
    206   .debug_weaknames 0 : { *(.debug_weaknames) }
    207   .debug_funcnames 0 : { *(.debug_funcnames) }
    208   .debug_typenames 0 : { *(.debug_typenames) }
    209   .debug_varnames  0 : { *(.debug_varnames) }
    210   /* DWARF 3 */
    211   .debug_pubtypes 0 : { *(.debug_pubtypes) }
    212   .debug_ranges   0 : { *(.debug_ranges) }
    213   /* DWARF Extension.  */
    214   .debug_macro    0 : { *(.debug_macro) }
    215   .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }
    216   .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
    217   /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) }
    218 }
    219