binutils-gdb/ld/scripttempl/mmo.sc
Hans-Peter Nilsson 48fa4a5def Support on-demand global register allocation from
R_MMIX_BASE_PLUS_OFFSET relocs.
	* emultempl/mmix-elfnmmo.em (mmix_after_allocation): Rename from
	mmix_set_reg_section_vma.  Call
	_bfd_mmix_finalize_linker_allocated_gregs.
	(mmix_before_allocation): New function.
	(LDEMUL_AFTER_ALLOCATION): Set to mmix_after_allocation.
	(LDEMUL_BEFORE_ALLOCATION): Define to mmix_before_allocation.
	* scripttempl/mmo.sc (.text): Mark .init, .fini as KEEP.
	(.MMIX.reg_contents): Add .MMIX.reg_contents.linker_allocated
	before .MMIX.reg_contents.
	* emultempl/mmo.em (gldmmo_before_allocation): Define to default.
	(mmo_after_open): New function.
	(LDEMUL_AFTER_OPEN): Define to mmo_after_open.
	* emulparams/elf64mmix.sh (OTHER_SECTIONS): Tweak formatting.  Add
	.MMIX.reg_contents.linker_allocated before .MMIX.reg_contents.
2002-02-01 08:24:03 +00:00

132 lines
4.2 KiB
Scala

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+ KEEP (*(.init))}
${RELOCATING+ PROVIDE (_init_end = .);}
${RELOCATING+ PROVIDE (_fini_start = .);}
${RELOCATING+ PROVIDE (_fini = .);}
${RELOCATING+ KEEP (*(.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) }
.debug_ranges 0 : { *(.debug_ranges) }
.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.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/ :
{ *(.gnu.warning.*); }
}
EOF