yggdrasil/binutils-gdb
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add support for the aarch64-gnu target (GNU/Hurd on AArch64)

Browse Source 
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>
This commit is contained in:
Sergey Bugaev 2024-01-01 14:53:09 +03:00 committed by Nick Clifton
parent 09f5e4ed86
commit 950b68acd4
4 changed files with 44 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
bfd/config.bfd
View File

@ -284,7 +284,7 @@ case "${targ}" in
targ_selvecs="aarch64_elf64_be_vec aarch64_elf32_le_vec aarch64_elf32_be_vec arm_elf32_le_vec arm_elf32_be_vec"
want64=true
;;
aarch64-*-linux* | aarch64-*-netbsd* | aarch64-*-nto*)
aarch64-*-linux* | aarch64-*-netbsd* | aarch64-*-nto* | aarch64-*-gnu*)
targ_defvec=aarch64_elf64_le_vec
targ_selvecs="aarch64_elf64_be_vec aarch64_elf32_le_vec aarch64_elf32_be_vec arm_elf32_le_vec arm_elf32_be_vec aarch64_pei_le_vec aarch64_pe_le_vec"
want64=true

1
gas/configure.tgt
View File

@ -134,6 +134,7 @@ case ${generic_target} in
case ${cpu}-${os} in
aarch64*-linux-gnu_ilp32) arch=aarch64:32 ;;
esac ;;
aarch64*-*-gnu*) fmt=elf em=gnu ;;
aarch64*-*-netbsd*) fmt=elf em=nbsd;;
aarch64*-*-nto*) fmt=elf;;
aarch64*-*-openbsd*) fmt=elf;;

5
ld/configure.tgt
View File

@ -116,6 +116,11 @@ aarch64-*-linux*) targ_emul=aarch64linux
targ_extra_libpath="aarch64linuxb aarch64linux32 aarch64linux32b armelfb_linux_eabi armelf_linux_eabi"
targ_extra_emuls="aarch64elf aarch64elf32 aarch64elf32b aarch64elfb armelf armelfb $targ_extra_libpath"
;;
# This has to come after aarch64-*-linux* for aarch64-*-linux-gnu to hit the Linux branch.
aarch64-*-gnu*)
targ_emul=aarch64gnu
targ_extra_emuls="aarch64elf aarch64elfb armelf armelfb"
;;
aarch64-*-haiku*) targ_emul=aarch64haiku
targ_extra_emuls="aarch64elf aarch64elf32 aarch64elf32b aarch64elfb armelf armelfb armelf_haiku $targ_extra_libpath"
;;

37
ld/emulparams/aarch64gnu.sh Normal file
View File

@ -0,0 +1,37 @@
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)}} }"