ld/scripttempl/mmo.sc

   1 # MMO is not a relocateable format, and we don't want to require an
   2 # explicit (e.g.) "-m elf64mmix" when -r is used.
   3 test -z $RELOCATEABLE_OUTPUT_FORMAT && RELOCATEABLE_OUTPUT_FORMAT=$OUTPUT_FORMAT
   4 test -z ${RELOCATING+0} && OUTPUT_FORMAT=$RELOCATEABLE_OUTPUT_FORMAT
   5 cat <<EOF
   6 OUTPUT_FORMAT("$OUTPUT_FORMAT")
   7 OUTPUT_ARCH(mmix)
   8 ${RELOCATING+ENTRY(Main)}
   9 SECTIONS
  10 {
  11   .text ${RELOCATING+ ${TEXT_START_ADDR}}:
  12   {
  13     *(.text)
  14     ${RELOCATING+*(.text.*)}
  15     ${RELOCATING+*(.gnu.linkonce.t*)}
  16     ${RELOCATING+*(.rodata)}
  17     ${RELOCATING+*(.rodata.*)}
  18     ${RELOCATING+*(.gnu.linkonce.r*)}
  19
  20     /* FIXME: Move .init, .fini, .ctors and .dtors to their own sections.  */
  21     ${RELOCATING+ PROVIDE (_init_start = .);}
  22     ${RELOCATING+ PROVIDE (_init = .);}
  23     ${RELOCATING+ KEEP (*(SORT_NONE(.init)))}
  24     ${RELOCATING+ PROVIDE (_init_end = .);}
  25
  26     ${RELOCATING+ PROVIDE (_fini_start = .);}
  27     ${RELOCATING+ PROVIDE (_fini = .);}
  28     ${RELOCATING+ KEEP (*(SORT_NONE(.fini)))}
  29     ${RELOCATING+ PROVIDE (_fini_end = .);}
  30
  31     /* FIXME: Align ctors, dtors, ehframe.  */
  32     ${RELOCATING+ PROVIDE (_ctors_start = .);}
  33     ${RELOCATING+ PROVIDE (__ctors_start = .);}
  34     ${RELOCATING+ PROVIDE (_ctors = .);}
  35     ${RELOCATING+ PROVIDE (__ctors = .);}
  36     ${RELOCATING+ KEEP (*crtbegin.o(.ctors))}
  37     ${RELOCATING+ KEEP (*crtbegin?.o(.ctors))}
  38     ${RELOCATING+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o) .ctors))}
  39     ${RELOCATING+ KEEP (*(SORT(.ctors.*)))}
  40     ${RELOCATING+ KEEP (*(.ctors))}
  41     ${RELOCATING+ PROVIDE (_ctors_end = .);}
  42     ${RELOCATING+ PROVIDE (__ctors_end = .);}
  43
  44     ${RELOCATING+ PROVIDE (_dtors_start = .);}
  45     ${RELOCATING+ PROVIDE (__dtors_start = .);}
  46     ${RELOCATING+ PROVIDE (_dtors = .);}
  47     ${RELOCATING+ PROVIDE (__dtors = .);}
  48     ${RELOCATING+ KEEP (*crtbegin.o(.dtors))}
  49     ${RELOCATING+ KEEP (*crtbegin?.o(.dtors))}
  50     ${RELOCATING+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o) .dtors))}
  51     ${RELOCATING+ KEEP (*(SORT(.dtors.*)))}
  52     ${RELOCATING+ KEEP (*(.dtors))}
  53     ${RELOCATING+ PROVIDE (_dtors_end = .);}
  54     ${RELOCATING+ PROVIDE (__dtors_end = .);}
  55
  56     ${RELOCATING+KEEP (*(.jcr))}
  57     ${RELOCATING+KEEP (*(.eh_frame))}
  58     ${RELOCATING+*(.gcc_except_table)}
  59
  60     ${RELOCATING+Main = DEFINED (Main) ? Main : (DEFINED (_start) ? _start : ADDR (.text));}
  61   }
  62
  63   /* The following NOP assignment and those after .data and .bss, are
  64      necessary to get orphan sections adopted by the .text inserted before
  65      the following end-section symbols.  An output section would also serve
  66      this purpose, but we can't do that.  */
  67   . = .;
  68   ${RELOCATING+ PROVIDE(etext = .);}
  69   ${RELOCATING+ PROVIDE(_etext = .);}
  70   ${RELOCATING+ PROVIDE(__etext = .);}
  71
  72   .data ${RELOCATING+ ${DATA_ADDR}}:
  73   {
  74     ${RELOCATING+ PROVIDE(__Sdata = .);}
  75
  76     *(.data);
  77     ${RELOCATING+*(.data.*)}
  78     ${RELOCATING+*(.gnu.linkonce.d*)}
  79   }
  80   . = .;
  81   ${RELOCATING+ PROVIDE(__Edata = .);}
  82   /* Deprecated, use __Edata.  */
  83   ${RELOCATING+ PROVIDE(edata = .);}
  84   ${RELOCATING+ PROVIDE(_edata = .);}
  85   ${RELOCATING+ PROVIDE(__edata = .);}
  86
  87   /* At the moment, although perhaps we should, we can't map sections
  88      without contents to sections *with* contents due to FIXME: a BFD bug.
  89      Anyway, the mmo back-end ignores sections without contents when
  90      writing out sections, so this works fine.   */
  91   .bss :
  92   {
  93     ${RELOCATING+ PROVIDE(__Sbss = .);}
  94     ${RELOCATING+ PROVIDE(__bss_start = .);}
  95     ${RELOCATING+ *(.sbss);}
  96     ${RELOCATING+ *(.bss);}
  97     ${RELOCATING+*(.bss.*)}
  98     ${RELOCATING+ *(COMMON);}
  99   }
 100   . = .;
 101   ${RELOCATING+ PROVIDE(__Ebss = .);}
 102
 103   /* Deprecated, use __Ebss or __Eall as appropriate.  */
 104   ${RELOCATING+ PROVIDE(end = .);}
 105   ${RELOCATING+ PROVIDE(_end = .);}
 106   ${RELOCATING+ PROVIDE(__end = .);}
 107   ${RELOCATING+ PROVIDE(__Eall = .);}
 108
 109   .stab 0 : { *(.stab) }
 110   .stabstr 0 : { *(.stabstr) }
 111   .stab.excl 0 : { *(.stab.excl) }
 112   .stab.exclstr 0 : { *(.stab.exclstr) }
 113   .stab.index 0 : { *(.stab.index) }
 114   .stab.indexstr 0 : { *(.stab.indexstr) }
 115 EOF
 116
 117 . $srcdir/scripttempl/DWARF.sc
 118
 119 cat <<EOF
 120   .MMIX.reg_contents :
 121   {
 122     /* Note that this section always has a fixed VMA - that of its
 123        first register * 8.  */
 124     *(.MMIX.reg_contents.linker_allocated);
 125     *(.MMIX.reg_contents);
 126   }
 127
 128   /* By default, put the high end of the stack where the register stack
 129      begins.  They grow in opposite directions.  */
 130   PROVIDE (__Stack_start = 0x6000000000000000);
 131
 132   /* Unfortunately, stabs are not mappable from ELF to MMO.
 133      It can probably be fixed with some amount of work.  */
 134   /DISCARD/ :
 135   { ${RELOCATING+ *(.gnu.warning.*);} }
 136
 137   .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
 138 }
 139 EOF