Retro68/binutils/ld/emulparams/elf32bmipn32-defs.sh
2015-08-28 17:32:19 +02:00

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# If you change this file, please also look at files which source this one:
# elf64bmip.sh elf64btsmip.sh elf32btsmipn32.sh elf32bmipn32.sh
# This is an ELF platform.
SCRIPT_NAME=elf
# Handle both big- and little-ended 32-bit MIPS objects.
ARCH=mips
OUTPUT_FORMAT="elf32-bigmips"
BIG_OUTPUT_FORMAT="elf32-bigmips"
LITTLE_OUTPUT_FORMAT="elf32-littlemips"
TEMPLATE_NAME=elf32
EXTRA_EM_FILE=mipself
case "$EMULATION_NAME" in
elf32*n32*) ELFSIZE=32 ;;
elf64*) ELFSIZE=64 ;;
*) echo $0: unhandled emulation $EMULATION_NAME >&2; exit 1 ;;
esac
if test `echo "$host" | sed -e s/64//` = `echo "$target" | sed -e s/64//`; then
case " $EMULATION_LIBPATH " in
*" ${EMULATION_NAME} "*)
NATIVE=yes
;;
esac
fi
# Look for 64 bit target libraries in /lib64, /usr/lib64 etc., first.
LIBPATH_SUFFIX=$ELFSIZE
GENERATE_SHLIB_SCRIPT=yes
GENERATE_PIE_SCRIPT=yes
TEXT_START_ADDR=0x10000000
MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
ENTRY=__start
# Unlike most targets, the MIPS backend puts all dynamic relocations
# in a single dynobj section, which it also calls ".rel.dyn". It does
# this so that it can easily sort all dynamic relocations before the
# output section has been populated.
OTHER_GOT_RELOC_SECTIONS="
.rel.dyn ${RELOCATING-0} : { *(.rel.dyn) }
"
# GOT-related settings.
# If the output has a GOT section, there must be exactly 0x7ff0 bytes
# between .got and _gp. The ". = ." below stops the orphan code from
# inserting other sections between the assignment to _gp and the start
# of .got.
OTHER_GOT_SYMBOLS='
. = .;
HIDDEN (_gp = ALIGN (16) + 0x7ff0);
'
# .got.plt is only used for the PLT psABI extension. It should not be
# included in the .sdata block with .got, as there is no need to access
# the section from _gp. Note that the traditional:
#
# . = .
# _gp = ALIGN (16) + 0x7ff0;
# .got : { *(.got.plt) *(.got) }
#
# would set _gp to the wrong value; _gp - 0x7ff0 must point to the start
# of *(.got).
GOT=".got ${RELOCATING-0} : { *(.got) }"
unset OTHER_READWRITE_SECTIONS
unset OTHER_RELRO_SECTIONS
if test -n "$RELRO_NOW"; then
OTHER_RELRO_SECTIONS=".got.plt ${RELOCATING-0} : { *(.got.plt) }"
else
OTHER_READWRITE_SECTIONS=".got.plt ${RELOCATING-0} : { *(.got.plt) }"
fi
OTHER_SDATA_SECTIONS="
.lit8 ${RELOCATING-0} : { *(.lit8) }
.lit4 ${RELOCATING-0} : { *(.lit4) }
.srdata ${RELOCATING-0} : { *(.srdata) }
"
# Magic symbols.
TEXT_START_SYMBOLS='_ftext = . ;'
DATA_START_SYMBOLS='_fdata = . ;'
OTHER_BSS_SYMBOLS='_fbss = .;'
INITIAL_READONLY_SECTIONS=
if test -z "${CREATE_SHLIB}"; then
INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp) }"
fi
INITIAL_READONLY_SECTIONS="${INITIAL_READONLY_SECTIONS}
.MIPS.abiflags ${RELOCATING-0} : { *(.MIPS.abiflags) }
.reginfo ${RELOCATING-0} : { *(.reginfo) }"
# Discard any .MIPS.content* or .MIPS.events* sections. The linker
# doesn't know how to adjust them.
OTHER_SECTIONS="/DISCARD/ : { *(.MIPS.content*) *(.MIPS.events*) }"
TEXT_DYNAMIC=