ld/scripttempl/crisaout.sc

   1 # Copyright (C) 2014-2015 Free Software Foundation, Inc.
   2 #
   3 # Copying and distribution of this file, with or without modification,
   4 # are permitted in any medium without royalty provided the copyright
   5 # notice and this notice are preserved.
   6
   7 cat <<EOF
   8 /* Copyright (C) 2014-2015 Free Software Foundation, Inc.
   9
  10    Copying and distribution of this script, with or without modification,
  11    are permitted in any medium without royalty provided the copyright
  12    notice and this notice are preserved.  */
  13
  14 OUTPUT_FORMAT("a.out-cris")
  15 OUTPUT_ARCH(cris)
  16 ${RELOCATING+ENTRY (__start)}
  17 SECTIONS
  18 {
  19   .text ${RELOCATING+ ${TEXT_START_ADDR}}:
  20   {
  21    CREATE_OBJECT_SYMBOLS;
  22     ${CONSTRUCTING+ __Stext = .;}
  23     ${RELOCATING+*(.startup)}
  24     *(.text)
  25     ${CONSTRUCTING+__start = DEFINED(__start) ? __start :
  26                    DEFINED(_start) ? _start :
  27                      DEFINED(start) ? start :
  28                         DEFINED(.startup) ? .startup + 2 : 2;}
  29     ${RELOCATING+*(.text.*)}
  30     ${RELOCATING+*(.gnu.linkonce.t*)}
  31     ${RELOCATING+*(.rodata)}
  32     ${RELOCATING+*(.rodata.*)}
  33     ${RELOCATING+*(.gnu.linkonce.r*)}
  34
  35     /* Do not "provide" init-start and fini-start symbols; they might be
  36        referred to weakly, so the linker would not override the zero
  37        default.
  38        FIXME: It's somewhat unexpected to have code emitted by the linker
  39        script.  Some other mechanism could probably do better.  */
  40     ${CONSTRUCTING+ . = ALIGN (2);}
  41     ${CONSTRUCTING+  ___init__start = .;}
  42     ${CONSTRUCTING+ PROVIDE (___do_global_ctors = .);}
  43     ${CONSTRUCTING+ SHORT (0xe1fc); /* push srp */}
  44     ${CONSTRUCTING+ SHORT (0xbe7e);}
  45     ${CONSTRUCTING+ *(.init)}
  46     ${CONSTRUCTING+ SHORT (0x0d3e); /* jump [sp+] */}
  47     ${CONSTRUCTING+ PROVIDE (__init__end = .);}
  48     ${CONSTRUCTING+ PROVIDE (___init__end = .);}
  49
  50     ${CONSTRUCTING+ . = ALIGN (2);}
  51     ${CONSTRUCTING+  ___fini__start = .;}
  52     ${CONSTRUCTING+ PROVIDE (___do_global_dtors = .);}
  53     ${CONSTRUCTING+ SHORT (0xe1fc); /* push srp */}
  54     ${CONSTRUCTING+ SHORT (0xbe7e);}
  55     ${CONSTRUCTING+ *(.fini)}
  56     ${CONSTRUCTING+ SHORT (0x0d3e); /* jump [sp+] */}
  57     ${CONSTRUCTING+ PROVIDE (__fini__end = .);}
  58     ${CONSTRUCTING+  ___fini__end = .;}
  59
  60     /* Cater to linking from ELF.  */
  61     ${CONSTRUCTING+ PROVIDE(___ctors = .);}
  62     ${CONSTRUCTING+ ___elf_ctors_dtors_begin = .;}
  63     ${CONSTRUCTING+ KEEP (*crtbegin.o(.ctors))}
  64     ${CONSTRUCTING+ KEEP (*crtbegin?.o(.ctors))}
  65     ${CONSTRUCTING+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o) .ctors))}
  66     ${CONSTRUCTING+ KEEP (*(SORT(.ctors.*)))}
  67     ${CONSTRUCTING+ KEEP (*(.ctors))}
  68     ${CONSTRUCTING+ PROVIDE(___ctors_end = .);}
  69
  70     ${CONSTRUCTING+ PROVIDE(___dtors = .);}
  71     ${CONSTRUCTING+ KEEP (*crtbegin.o(.dtors))}
  72     ${CONSTRUCTING+ KEEP (*crtbegin?.o(.dtors))}
  73     ${CONSTRUCTING+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o) .dtors))}
  74     ${CONSTRUCTING+ KEEP (*(SORT(.dtors.*)))}
  75     ${CONSTRUCTING+ KEEP (*(.dtors))}
  76     ${CONSTRUCTING+ PROVIDE(___dtors_end = .);}
  77     ${CONSTRUCTING+ ___elf_ctors_dtors_end = .;}
  78
  79     /* We include objects that force alignment of the data segment.
  80        Unfortunately that sometimes causes a gap between .text and .data,
  81        which is not detectable since .data does not have a start address
  82        of itself in the a.out header.  This should only matter for
  83        testing; for production use, .data is at a "known" location.
  84        We assume .data does not get an alignment larger than 32 bytes.  */
  85     ${CONSTRUCTING+. = ALIGN (32);}
  86
  87     ${CONSTRUCTING+ __Etext = .;}
  88
  89     /* Deprecated, use __Etext.  */
  90     ${CONSTRUCTING+ PROVIDE(_etext = .);}
  91   }
  92
  93   /* Any dot-relative start-expression (such as "ALIGN(2)", also including
  94      the "default" .data alignment expression) will use the initial, raw
  95      size of .text and will be incorrect if the alignment used is less
  96      than the alignment for .text (which might depend on input and obj
  97      format).  FIXME: Seems like a bug in ld.  Seems hard to fix.  Seems
  98      unimportant.  */
  99   .data :
 100   {
 101     ${CONSTRUCTING+ __Sdata = .;}
 102     *(.data);
 103     ${RELOCATING+*(.data.*)}
 104     ${RELOCATING+*(.gnu.linkonce.d*)}
 105     ${RELOCATING+*(.eh_frame) /* FIXME: Make .text */}
 106     ${RELOCATING+*(.gcc_except_table)}
 107
 108     /* See comment at ALIGN before __Etext.  */
 109     ${CONSTRUCTING+. = ALIGN (32);}
 110
 111     ${CONSTRUCTING+ __Edata = .;}
 112
 113     /* Deprecated, use __Edata.  */
 114     ${CONSTRUCTING+ PROVIDE(_edata = .);}
 115   }
 116
 117   .bss :
 118   {
 119     /* Deprecated, use __Sbss.  */
 120     ${CONSTRUCTING+ PROVIDE(_bss_start = .);}
 121
 122     ${CONSTRUCTING+ __Sbss = .;}
 123     *(.bss)
 124     ${RELOCATING+*(.bss.*)}
 125     *(COMMON)
 126     ${CONSTRUCTING+ __Ebss = .;}
 127
 128     /* Deprecated, use __Ebss or __Eall as appropriate.  */
 129     ${CONSTRUCTING+ PROVIDE(_end = .);}
 130     ${CONSTRUCTING+ PROVIDE(__end = .);}
 131   }
 132   ${CONSTRUCTING+ __Eall = .;}
 133
 134   /* Unfortunately, stabs are not mappable from ELF to a.out.
 135      It can probably be fixed with some amount of work.  */
 136   /DISCARD/ :
 137   { *(.stab) *(.stab*) *(.debug) *(.debug*) *(.comment) *(.gnu.warning.*) }
 138
 139   /* For the rsim and xsim simulators.  */
 140   ${CONSTRUCTING+ PROVIDE(__Endmem = 0x10000000);}
 141
 142   /* For elinux.  */
 143   ${CONSTRUCTING+ PROVIDE(__Stacksize = 0);}
 144 }
 145 EOF