Home | History | Annotate | Download | only in ldscripts
      1 /* Script for ld -pie: link position independent executable */
      2 OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm",
      3 	      "elf32-littlearm")
      4 OUTPUT_ARCH(arm)
      5 ENTRY(_start)
      6 SECTIONS
      7 {
      8   /* Read-only sections, merged into text segment: */
      9   PROVIDE (__executable_start = 0); . = 0 + SIZEOF_HEADERS;
     10   .interp         : { *(.interp) }
     11   .note.gnu.build-id : { *(.note.gnu.build-id) }
     12   .hash           : { *(.hash) }
     13   .gnu.hash       : { *(.gnu.hash) }
     14   .dynsym         : { *(.dynsym) }
     15   .dynstr         : { *(.dynstr) }
     16   .gnu.version    : { *(.gnu.version) }
     17   .gnu.version_d  : { *(.gnu.version_d) }
     18   .gnu.version_r  : { *(.gnu.version_r) }
     19   .rel.init       : { *(.rel.init) }
     20   .rela.init      : { *(.rela.init) }
     21   .rel.text       : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) }
     22   .rela.text      : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
     23   .rel.fini       : { *(.rel.fini) }
     24   .rela.fini      : { *(.rela.fini) }
     25   .rel.rodata     : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) }
     26   .rela.rodata    : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
     27   .rel.data.rel.ro   : { *(.rel.data.rel.ro .rel.data.rel.ro.* .rel.gnu.linkonce.d.rel.ro.*) }
     28   .rela.data.rel.ro   : { *(.rela.data.rel.ro .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*) }
     29   .rel.data       : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) }
     30   .rela.data      : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
     31   .rel.tdata	  : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) }
     32   .rela.tdata	  : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
     33   .rel.tbss	  : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) }
     34   .rela.tbss	  : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
     35   .rel.ctors      : { *(.rel.ctors) }
     36   .rela.ctors     : { *(.rela.ctors) }
     37   .rel.dtors      : { *(.rel.dtors) }
     38   .rela.dtors     : { *(.rela.dtors) }
     39   .rel.got        : { *(.rel.got) }
     40   .rela.got       : { *(.rela.got) }
     41   .rel.bss        : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) }
     42   .rela.bss       : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
     43   .rel.iplt       :
     44     {
     45       PROVIDE_HIDDEN (__rel_iplt_start = .);
     46       *(.rel.iplt)
     47       PROVIDE_HIDDEN (__rel_iplt_end = .);
     48     }
     49   .rela.iplt      :
     50     {
     51       PROVIDE_HIDDEN (__rela_iplt_start = .);
     52       *(.rela.iplt)
     53       PROVIDE_HIDDEN (__rela_iplt_end = .);
     54     }
     55   .rel.plt        :
     56     {
     57       *(.rel.plt)
     58     }
     59   .rela.plt       :
     60     {
     61       *(.rela.plt)
     62     }
     63   .init           :
     64   {
     65     KEEP (*(SORT_NONE(.init)))
     66   }
     67   .plt            : { *(.plt) }
     68   .iplt           : { *(.iplt) }
     69   .text           :
     70   {
     71     *(.text.unlikely .text.*_unlikely .text.unlikely.*)
     72     *(.text.exit .text.exit.*)
     73     *(.text.startup .text.startup.*)
     74     *(.text.hot .text.hot.*)
     75     *(.text .stub .text.* .gnu.linkonce.t.*)
     76     /* .gnu.warning sections are handled specially by elf32.em.  */
     77     *(.gnu.warning)
     78     *(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
     79   }
     80   .fini           :
     81   {
     82     KEEP (*(SORT_NONE(.fini)))
     83   }
     84   PROVIDE (__etext = .);
     85   PROVIDE (_etext = .);
     86   PROVIDE (etext = .);
     87   .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
     88   .rodata1        : { *(.rodata1) }
     89   .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) }
     90    PROVIDE_HIDDEN (__exidx_start = .);
     91   .ARM.exidx   : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) }
     92    PROVIDE_HIDDEN (__exidx_end = .);
     93   .eh_frame_hdr : { *(.eh_frame_hdr) }
     94   .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
     95   .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table
     96   .gcc_except_table.*) }
     97   /* These sections are generated by the Sun/Oracle C++ compiler.  */
     98   .exception_ranges   : ONLY_IF_RO { *(.exception_ranges
     99   .exception_ranges*) }
    100   /* Adjust the address for the data segment.  For 32 bits we want to align
    101   at exactly a page boundary to make life easier for apriori. */
    102   . = ALIGN (CONSTANT (MAXPAGESIZE)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
    103   /* Exception handling  */
    104   .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
    105   .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
    106   .exception_ranges   : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
    107   /* Thread Local Storage sections  */
    108   .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
    109   .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
    110   /* Ensure the __preinit_array_start label is properly aligned.  We
    111      could instead move the label definition inside the section, but
    112      the linker would then create the section even if it turns out to
    113      be empty, which isn't pretty.  */
    114   . = ALIGN(32 / 8);
    115   PROVIDE_HIDDEN (__preinit_array_start = .);
    116   .preinit_array     :
    117   {
    118     KEEP (*(.preinit_array))
    119   }
    120   PROVIDE_HIDDEN (__preinit_array_end = .);
    121   PROVIDE_HIDDEN (__init_array_start = .);
    122   .init_array     :
    123   {
    124     KEEP (*crtbegin*.o(.init_array))
    125     KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
    126     KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors))
    127   }
    128   PROVIDE_HIDDEN (__init_array_end = .);
    129   PROVIDE_HIDDEN (__fini_array_start = .);
    130   .fini_array     :
    131   {
    132     KEEP (*crtbegin*.o(.fini_array))
    133     KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
    134     KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors))
    135   }
    136   PROVIDE_HIDDEN (__fini_array_end = .);
    137   .ctors          :
    138   {
    139     /* gcc uses crtbegin.o to find the start of
    140        the constructors, so we make sure it is
    141        first.  Because this is a wildcard, it
    142        doesn't matter if the user does not
    143        actually link against crtbegin.o; the
    144        linker won't look for a file to match a
    145        wildcard.  The wildcard also means that it
    146        doesn't matter which directory crtbegin.o
    147        is in.  */
    148     KEEP (*crtbegin.o(.ctors))
    149     KEEP (*crtbegin*.o(.ctors))
    150     /* We don't want to include the .ctor section from
    151        the crtend.o file until after the sorted ctors.
    152        The .ctor section from the crtend file contains the
    153        end of ctors marker and it must be last */
    154     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors))
    155     KEEP (*(SORT(.ctors.*)))
    156     KEEP (*(.ctors))
    157   }
    158   .dtors          :
    159   {
    160     KEEP (*crtbegin.o(.dtors))
    161     KEEP (*crtbegin*.o(.dtors))
    162     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors))
    163     KEEP (*(SORT(.dtors.*)))
    164     KEEP (*(.dtors))
    165   }
    166   .jcr            : { KEEP (*(.jcr)) }
    167   .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
    168   .dynamic        : { *(.dynamic) }
    169   . = DATA_SEGMENT_RELRO_END (0, .);
    170   .got            : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }
    171   .data           :
    172   {
    173     PROVIDE (__data_start = .);
    174     *(.data .data.* .gnu.linkonce.d.*)
    175     SORT(CONSTRUCTORS)
    176   }
    177   .data1          : { *(.data1) }
    178   _edata = .; PROVIDE (edata = .);
    179   . = .;
    180   __bss_start = .;
    181   __bss_start__ = .;
    182   .bss            :
    183   {
    184    *(.dynbss)
    185    *(.bss .bss.* .gnu.linkonce.b.*)
    186    *(COMMON)
    187    /* Align here to ensure that the .bss section occupies space up to
    188       _end.  Align after .bss to ensure correct alignment even if the
    189       .bss section disappears because there are no input sections.  */
    190    . = ALIGN(32 / 8);
    191   }
    192   _bss_end__ = . ; __bss_end__ = . ;
    193   . = ALIGN(32 / 8);
    194   . = SEGMENT_START("ldata-segment", .);
    195   . = ALIGN(32 / 8);
    196   __end__ = . ;
    197   _end = .;
    198   _bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
    199   PROVIDE (end = .);
    200   . = DATA_SEGMENT_END (.);
    201   /* Stabs debugging sections.  */
    202   .stab          0 : { *(.stab) }
    203   .stabstr       0 : { *(.stabstr) }
    204   .stab.excl     0 : { *(.stab.excl) }
    205   .stab.exclstr  0 : { *(.stab.exclstr) }
    206   .stab.index    0 : { *(.stab.index) }
    207   .stab.indexstr 0 : { *(.stab.indexstr) }
    208   .comment       0 : { *(.comment) }
    209   /* DWARF debug sections.
    210      Symbols in the DWARF debugging sections are relative to the beginning
    211      of the section so we begin them at 0.  */
    212   /* DWARF 1 */
    213   .debug          0 : { *(.debug) }
    214   .line           0 : { *(.line) }
    215   /* GNU DWARF 1 extensions */
    216   .debug_srcinfo  0 : { *(.debug_srcinfo) }
    217   .debug_sfnames  0 : { *(.debug_sfnames) }
    218   /* DWARF 1.1 and DWARF 2 */
    219   .debug_aranges  0 : { *(.debug_aranges) }
    220   .debug_pubnames 0 : { *(.debug_pubnames) }
    221   /* DWARF 2 */
    222   .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
    223   .debug_abbrev   0 : { *(.debug_abbrev) }
    224   .debug_line     0 : { *(.debug_line .debug_line.* .debug_line_end ) }
    225   .debug_frame    0 : { *(.debug_frame) }
    226   .debug_str      0 : { *(.debug_str) }
    227   .debug_loc      0 : { *(.debug_loc) }
    228   .debug_macinfo  0 : { *(.debug_macinfo) }
    229   /* SGI/MIPS DWARF 2 extensions */
    230   .debug_weaknames 0 : { *(.debug_weaknames) }
    231   .debug_funcnames 0 : { *(.debug_funcnames) }
    232   .debug_typenames 0 : { *(.debug_typenames) }
    233   .debug_varnames  0 : { *(.debug_varnames) }
    234   /* DWARF 3 */
    235   .debug_pubtypes 0 : { *(.debug_pubtypes) }
    236   .debug_ranges   0 : { *(.debug_ranges) }
    237   /* DWARF Extension.  */
    238   .debug_macro    0 : { *(.debug_macro) }
    239   .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
    240   .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
    241   /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) }
    242 }
    243