binutils-gdb/ld/emulparams/aarch64gnu.sh
Sergey Bugaev 950b68acd4 Add support for the aarch64-gnu target (GNU/Hurd on AArch64)
Also recognized are aarch64-*-gnu tagrets, e.g. aarch64-pc-gnu or
aarch64-unknown-gnu.

The ld/emulparams/aarch64gnu.sh file is (for now) identical to aarch64fbsd.sh,
or to aarch64linux.sh with Linux-specific logic removed; and mainly different
from the generic aarch64elf.sh in that it does not set EMBEDDED=yes.

Coupled with a corresponding GCC patch, this produces a toolchain that can
sucessfully build working binaries targeting aarch64-gnu.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
2024-01-08 09:51:58 +00:00

38 lines
1.1 KiB
Bash

ARCH=aarch64
MACHINE=
NOP=0x1f2003d5
SCRIPT_NAME=elf
ELFSIZE=64
OUTPUT_FORMAT="elf64-littleaarch64"
BIG_OUTPUT_FORMAT="elf64-bigaarch64"
LITTLE_OUTPUT_FORMAT="elf64-littleaarch64"
NO_REL_RELOCS=yes
TEMPLATE_NAME=elf
EXTRA_EM_FILE=aarch64elf
GENERATE_SHLIB_SCRIPT=yes
GENERATE_PIE_SCRIPT=yes
MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
SEPARATE_GOTPLT=24
IREL_IN_PLT=
TEXT_START_ADDR=0x400000
DATA_START_SYMBOLS='PROVIDE (__data_start = .);';
# AArch64 does not support .s* sections.
NO_SMALL_DATA=yes
OTHER_BSS_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__bss_start__ = .${CREATE_SHLIB+)};"
OTHER_BSS_END_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_bss_end__ = .${CREATE_SHLIB+)}; ${CREATE_SHLIB+PROVIDE (}__bss_end__ = .${CREATE_SHLIB+)};"
OTHER_END_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__end__ = .${CREATE_SHLIB+)};"
OTHER_SECTIONS='.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }'
ATTRS_SECTIONS='.ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }'
# Ensure each PLT entry is aligned to a cache line.
PLT=".plt ${RELOCATING-0} : ALIGN(16) { *(.plt)${RELOCATING+${IREL_IN_PLT+ *(.iplt)}} }"