mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
31b94bbb7b
* emulparams/elf32bmipn32-defs.sh: Skip empty EMULATION_NAME.
99 lines
3.0 KiB
Bash
99 lines
3.0 KiB
Bash
# 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 x"$EMULATION_NAME" in
|
|
xelf32*n32*) ELFSIZE=32 ;;
|
|
xelf64*) ELFSIZE=64 ;;
|
|
x) ;;
|
|
*) 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=
|