Home | History | Annotate | Download | only in ldscripts
      1 /* Default linker script, for normal executables */
      2 /* Modified for Android.  */
      3 OUTPUT_FORMAT("elf32-littleaarch64", "elf32-bigaarch64",
      4 	      "elf32-littleaarch64")
      5 OUTPUT_ARCH(aarch64:ilp32)
      6 ENTRY(_start)
      7 SECTIONS
      8 {
      9   /* Read-only sections, merged into text segment: */
     10   PROVIDE (__executable_start = 0x00400000); . = 0x00400000;
     11   .interp         : { *(.interp) }
     12   .note.gnu.build-id : { *(.note.gnu.build-id) }
     13   .hash           : { *(.hash) }
     14   .gnu.hash       : { *(.gnu.hash) }
     15   .dynsym         : { *(.dynsym) }
     16   .dynstr         : { *(.dynstr) }
     17   .gnu.version    : { *(.gnu.version) }
     18   .gnu.version_d  : { *(.gnu.version_d) }
     19   .gnu.version_r  : { *(.gnu.version_r) }
     20   .rela.init      : { *(.rela.init) }
     21   .rela.text      : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
     22   .rela.fini      : { *(.rela.fini) }
     23   .rela.rodata    : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
     24   .rela.data.rel.ro   : { *(.rela.data.rel.ro .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*) }
     25   .rela.data      : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
     26   .rela.tdata	  : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
     27   .rela.tbss	  : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
     28   .rela.ctors     : { *(.rela.ctors) }
     29   .rela.dtors     : { *(.rela.dtors) }
     30   .rela.got       : { *(.rela.got) }
     31   .rela.bss       : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
     32   .rela.ifunc     : { *(.rela.ifunc) }
     33   .rela.plt       :
     34     {
     35       *(.rela.plt)
     36       PROVIDE_HIDDEN (__rela_iplt_start = .);
     37       *(.rela.iplt)
     38       PROVIDE_HIDDEN (__rela_iplt_end = .);
     39     }
     40   .init           :
     41   {
     42     KEEP (*(SORT_NONE(.init)))
     43   } =0
     44   .plt            : { *(.plt) *(.iplt) }
     45   .text           :
     46   {
     47     *(.text.unlikely .text.*_unlikely .text.unlikely.*)
     48     *(.text.exit .text.exit.*)
     49     *(.text.startup .text.startup.*)
     50     *(.text.hot .text.hot.*)
     51     *(.text .stub .text.* .gnu.linkonce.t.*)
     52     /* .gnu.warning sections are handled specially by elf32.em.  */
     53     *(.gnu.warning)
     54   } =0
     55   .fini           :
     56   {
     57     KEEP (*(SORT_NONE(.fini)))
     58   } =0
     59   PROVIDE (__etext = .);
     60   PROVIDE (_etext = .);
     61   PROVIDE (etext = .);
     62   .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
     63   .rodata1        : { *(.rodata1) }
     64   .eh_frame_hdr : { *(.eh_frame_hdr) }
     65   .eh_frame       : ONLY_IF_RO { KEEP (*(.eh_frame)) }
     66   .gcc_except_table   : ONLY_IF_RO { *(.gcc_except_table
     67   .gcc_except_table.*) }
     68   /* These sections are generated by the Sun/Oracle C++ compiler.  */
     69   .exception_ranges   : ONLY_IF_RO { *(.exception_ranges
     70   .exception_ranges*) }
     71   /* Adjust the address for the data segment.  For 32 bits we want to align
     72   at exactly a page boundary to make life easier for apriori. */
     73   . = ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1));
     74   /* Exception handling  */
     75   .eh_frame       : ONLY_IF_RW { KEEP (*(.eh_frame)) }
     76   .gcc_except_table   : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
     77   .exception_ranges   : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
     78   /* Thread Local Storage sections  */
     79   .tdata	  : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
     80   .tbss		  : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
     81   /* Ensure the __preinit_array_start label is properly aligned.  We
     82      could instead move the label definition inside the section, but
     83      the linker would then create the section even if it turns out to
     84      be empty, which isn't pretty.  */
     85   . = ALIGN(32 / 8);
     86   PROVIDE_HIDDEN (__preinit_array_start = .);
     87   .preinit_array     :
     88   {
     89     KEEP (*(.preinit_array))
     90   }
     91   PROVIDE_HIDDEN (__preinit_array_end = .);
     92   PROVIDE_HIDDEN (__init_array_start = .);
     93   .init_array     :
     94   {
     95     KEEP (*crtbegin*.o(.init_array))
     96     KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
     97     KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors))
     98   }
     99   PROVIDE_HIDDEN (__init_array_end = .);
    100   PROVIDE_HIDDEN (__fini_array_start = .);
    101   .fini_array     :
    102   {
    103     KEEP (*crtbegin*.o(.fini_array))
    104     KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
    105     KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors))
    106   }
    107   PROVIDE_HIDDEN (__fini_array_end = .);
    108   .ctors          :
    109   {
    110     /* gcc uses crtbegin.o to find the start of
    111        the constructors, so we make sure it is
    112        first.  Because this is a wildcard, it
    113        doesn't matter if the user does not
    114        actually link against crtbegin.o; the
    115        linker won't look for a file to match a
    116        wildcard.  The wildcard also means that it
    117        doesn't matter which directory crtbegin.o
    118        is in.  */
    119     KEEP (*crtbegin.o(.ctors))
    120     KEEP (*crtbegin*.o(.ctors))
    121     /* We don't want to include the .ctor section from
    122        the crtend.o file until after the sorted ctors.
    123        The .ctor section from the crtend file contains the
    124        end of ctors marker and it must be last */
    125     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors))
    126     KEEP (*(SORT(.ctors.*)))
    127     KEEP (*(.ctors))
    128   }
    129   .dtors          :
    130   {
    131     KEEP (*crtbegin.o(.dtors))
    132     KEEP (*crtbegin*.o(.dtors))
    133     KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors))
    134     KEEP (*(SORT(.dtors.*)))
    135     KEEP (*(.dtors))
    136   }
    137   .jcr            : { KEEP (*(.jcr)) }
    138   .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
    139   .dynamic        : { *(.dynamic) }
    140   .got            : { *(.got) *(.igot) }
    141   .got.plt        : { *(.got.plt)  *(.igot.plt) }
    142   .data           :
    143   {
    144     __data_start = . ;
    145     *(.data .data.* .gnu.linkonce.d.*)
    146     SORT(CONSTRUCTORS)
    147   }
    148   .data1          : { *(.data1) }
    149   _edata = .; PROVIDE (edata = .);
    150   . = .;
    151   __bss_start = .;
    152   __bss_start__ = .;
    153   .bss            :
    154   {
    155    *(.dynbss)
    156    *(.bss .bss.* .gnu.linkonce.b.*)
    157    *(COMMON)
    158    /* Align here to ensure that the .bss section occupies space up to
    159       _end.  Align after .bss to ensure correct alignment even if the
    160       .bss section disappears because there are no input sections.  */
    161    . = ALIGN(32 / 8);
    162   }
    163   _bss_end__ = . ; __bss_end__ = . ;
    164   . = ALIGN(32 / 8);
    165   . = SEGMENT_START("ldata-segment", .);
    166   . = ALIGN(32 / 8);
    167   __end__ = . ;
    168   _end = .;
    169   _bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
    170   PROVIDE (end = .);
    171   /* Stabs debugging sections.  */
    172   .stab          0 : { *(.stab) }
    173   .stabstr       0 : { *(.stabstr) }
    174   .stab.excl     0 : { *(.stab.excl) }
    175   .stab.exclstr  0 : { *(.stab.exclstr) }
    176   .stab.index    0 : { *(.stab.index) }
    177   .stab.indexstr 0 : { *(.stab.indexstr) }
    178   .comment       0 : { *(.comment) }
    179   /* DWARF debug sections.
    180      Symbols in the DWARF debugging sections are relative to the beginning
    181      of the section so we begin them at 0.  */
    182   /* DWARF 1 */
    183   .debug          0 : { *(.debug) }
    184   .line           0 : { *(.line) }
    185   /* GNU DWARF 1 extensions */
    186   .debug_srcinfo  0 : { *(.debug_srcinfo) }
    187   .debug_sfnames  0 : { *(.debug_sfnames) }
    188   /* DWARF 1.1 and DWARF 2 */
    189   .debug_aranges  0 : { *(.debug_aranges) }
    190   .debug_pubnames 0 : { *(.debug_pubnames) }
    191   /* DWARF 2 */
    192   .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
    193   .debug_abbrev   0 : { *(.debug_abbrev) }
    194   .debug_line     0 : { *(.debug_line .debug_line.* .debug_line_end ) }
    195   .debug_frame    0 : { *(.debug_frame) }
    196   .debug_str      0 : { *(.debug_str) }
    197   .debug_loc      0 : { *(.debug_loc) }
    198   .debug_macinfo  0 : { *(.debug_macinfo) }
    199   /* SGI/MIPS DWARF 2 extensions */
    200   .debug_weaknames 0 : { *(.debug_weaknames) }
    201   .debug_funcnames 0 : { *(.debug_funcnames) }
    202   .debug_typenames 0 : { *(.debug_typenames) }
    203   .debug_varnames  0 : { *(.debug_varnames) }
    204   /* DWARF 3 */
    205   .debug_pubtypes 0 : { *(.debug_pubtypes) }
    206   .debug_ranges   0 : { *(.debug_ranges) }
    207   /* DWARF Extension.  */
    208   .debug_macro    0 : { *(.debug_macro) }
    209     .stack         0x80000 :
    210   {
    211     _stack = .;
    212     *(.stack)
    213   }
    214   .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }
    215   .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
    216   /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) }
    217 }
    218