Retro68/binutils/ld/scripttempl/mmo.sc

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# Copyright (C) 2014-2017 Free Software Foundation, Inc.
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#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.
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# MMO is not a relocateable format, and we don't want to require an
# explicit (e.g.) "-m elf64mmix" when -r is used.
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test -z $RELOCATEABLE_OUTPUT_FORMAT && RELOCATEABLE_OUTPUT_FORMAT=$OUTPUT_FORMAT
test -z ${RELOCATING+0} && OUTPUT_FORMAT=$RELOCATEABLE_OUTPUT_FORMAT
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cat <<EOF
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/* Copyright (C) 2014-2017 Free Software Foundation, Inc.
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Copying and distribution of this script, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. */
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OUTPUT_FORMAT("$OUTPUT_FORMAT")
OUTPUT_ARCH(mmix)
${RELOCATING+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 = .);}
${RELOCATING+ KEEP (*(SORT_NONE(.init)))}
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${RELOCATING+ PROVIDE (_init_end = .);}
${RELOCATING+ PROVIDE (_fini_start = .);}
${RELOCATING+ PROVIDE (_fini = .);}
${RELOCATING+ KEEP (*(SORT_NONE(.fini)))}
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${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 (*crtbegin?.o(.ctors))}
${RELOCATING+ KEEP (*(EXCLUDE_FILE (*crtend.o *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 (*crtbegin?.o(.dtors))}
${RELOCATING+ KEEP (*(EXCLUDE_FILE (*crtend.o *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+Main = DEFINED (Main) ? Main : (DEFINED (_start) ? _start : ADDR (.text));}
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}
/* The following NOP assignment and those after .data and .bss, are
necessary to get orphan sections adopted by the .text inserted before
the following end-section symbols. An output section would also serve
this purpose, but we can't do that. */
. = .;
${RELOCATING+ PROVIDE(etext = .);}
${RELOCATING+ PROVIDE(_etext = .);}
${RELOCATING+ PROVIDE(__etext = .);}
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.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 = .);}
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/* 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 = .);}
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/* Deprecated, use __Ebss or __Eall as appropriate. */
${RELOCATING+ PROVIDE(end = .);}
${RELOCATING+ PROVIDE(_end = .);}
${RELOCATING+ PROVIDE(__end = .);}
${RELOCATING+ PROVIDE(__Eall = .);}
.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) }
EOF
. $srcdir/scripttempl/DWARF.sc
cat <<EOF
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.MMIX.reg_contents :
{
/* Note that this section always has a fixed VMA - that of its
first register * 8. */
*(.MMIX.reg_contents.linker_allocated);
*(.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/ :
{ ${RELOCATING+ *(.gnu.warning.*);} }
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
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}
EOF