Add MMIX support

1 files changed, 129 insertions, 0 deletions

diff --git a/ld/scripttempl/mmo.sc b/ld/scripttempl/mmo.sc
new file mode 100644
index 0000000..9155f80
--- /dev/null
+++ b/ld/scripttempl/mmo.sc
@@ -0,0 +1,129 @@
+cat <<EOF
+OUTPUT_FORMAT("mmo")
+OUTPUT_ARCH(mmix)
+ENTRY(Main)
+SECTIONS
+{
+  .text ${RELOCATING+ ${TEXT_START_ADDR}}:
+  {
+    *(.text)
+    ${RELOCATING+*(.text.*)}
+    ${RELOCATING+*(.gnu.linkonce.t*)}
+    ${RELOCATING+*(.rodata)}
+    ${RELOCATING+*(.rodata.*)}
+    ${RELOCATING+*(.gnu.linkonce.r*)}
+
+    /* FIXME: Move .init, .fini, .ctors and .dtors to their own sections.  */
+    ${RELOCATING+ PROVIDE (_init_start = .);}
+    ${RELOCATING+ PROVIDE (_init = .);}
+    ${RELOCATING+ *(.init)}
+    ${RELOCATING+ PROVIDE (_init_end = .);}
+
+    ${RELOCATING+ PROVIDE (_fini_start = .);}
+    ${RELOCATING+ PROVIDE (_fini = .);}
+    ${RELOCATING+ *(.fini)}
+    ${RELOCATING+ PROVIDE (_fini_end = .);}
+
+    /* FIXME: Align ctors, dtors, ehframe.  */
+    ${RELOCATING+ PROVIDE (_ctors_start = .);}
+    ${RELOCATING+ PROVIDE (__ctors_start = .);}
+    ${RELOCATING+ PROVIDE (_ctors = .);}
+    ${RELOCATING+ PROVIDE (__ctors = .);}
+    ${RELOCATING+ KEEP (*crtbegin.o(.ctors))}
+    ${RELOCATING+ KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))}
+    ${RELOCATING+ KEEP (*(SORT(.ctors.*)))}
+    ${RELOCATING+ KEEP (*(.ctors))}
+    ${RELOCATING+ PROVIDE (_ctors_end = .);}
+    ${RELOCATING+ PROVIDE (__ctors_end = .);}
+
+    ${RELOCATING+ PROVIDE (_dtors_start = .);}
+    ${RELOCATING+ PROVIDE (__dtors_start = .);}
+    ${RELOCATING+ PROVIDE (_dtors = .);}
+    ${RELOCATING+ PROVIDE (__dtors = .);}
+    ${RELOCATING+ KEEP (*crtbegin.o(.dtors))}
+    ${RELOCATING+ KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))}
+    ${RELOCATING+ KEEP (*(SORT(.dtors.*)))}
+    ${RELOCATING+ KEEP (*(.dtors))}
+    ${RELOCATING+ PROVIDE (_dtors_end = .);}
+    ${RELOCATING+ PROVIDE (__dtors_end = .);}
+
+    ${RELOCATING+KEEP (*(.jcr))}
+    ${RELOCATING+KEEP (*(.eh_frame))}
+    ${RELOCATING+*(.gcc_except_table)}
+
+    ${RELOCATING+ PROVIDE(etext = .);}
+    ${RELOCATING+ PROVIDE(_etext = .);}
+    ${RELOCATING+ PROVIDE(__etext = .);}
+  }
+  ${RELOCATING+Main = DEFINED (Main) ? Main : (DEFINED (_start) ? _start : . - SIZEOF (.text));}
+
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+  .stab.excl 0 : { *(.stab.excl) }
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  .debug_info     0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+
+  .data ${RELOCATING+ ${DATA_ADDR}}:
+  {
+    ${RELOCATING+ PROVIDE(__Sdata = .);}
+
+    *(.data);
+    ${RELOCATING+*(.data.*)}
+    ${RELOCATING+*(.gnu.linkonce.d*)}
+
+    ${RELOCATING+ PROVIDE(__Edata = .);}
+
+    /* Deprecated, use __Edata.  */
+    ${RELOCATING+ PROVIDE(edata = .);}
+    ${RELOCATING+ PROVIDE(_edata = .);}
+    ${RELOCATING+ PROVIDE(__edata = .);}
+  }
+
+  /* At the moment, although perhaps we should, we can't map sections
+     without contents to sections *with* contents due to FIXME: a BFD bug.
+     Anyway, the mmo back-end ignores sections without contents when
+     writing out sections, so this works fine.   */
+  .bss :
+  {
+    ${RELOCATING+ PROVIDE(__Sbss = .);}
+    ${RELOCATING+ PROVIDE(__bss_start = .);}
+    ${RELOCATING+ *(.sbss);}
+    ${RELOCATING+ *(.bss);}
+    ${RELOCATING+*(.bss.*)}
+    ${RELOCATING+ *(COMMON);}
+    ${RELOCATING+ PROVIDE(__Ebss = .);}
+  }
+
+  /* Deprecated, use __Ebss or __Eall as appropriate.  */
+  ${RELOCATING+ PROVIDE(end = .);}
+  ${RELOCATING+ PROVIDE(_end = .);}
+  ${RELOCATING+ PROVIDE(__end = .);}
+  ${RELOCATING+ PROVIDE(__Eall = .);}
+
+  .MMIX.reg_contents :
+  {
+    /* Note that this section always has a fixed VMA - that of its
+       first register * 8.  */
+    *(.MMIX.reg_contents);
+  }
+
+  /* By default, put the high end of the stack where the register stack
+     begins.  They grow in opposite directions.  */
+  PROVIDE (__Stack_start = 0x6000000000000000);
+
+  /* Unfortunately, stabs are not mappable from ELF to MMO.
+     It can probably be fixed with some amount of work.  */
+  /DISCARD/ :
+  { *(.gnu.warning.*); }
+}
+EOF