mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-17 17:59:36 +08:00
[NetBSD] Add support for the Arm EABI.
This is a roll-up of a set of changes needed to support the Arm EABI on NetBSD. 2019-06-14 Matt Thomas <matt@3am-software.com> Matthew Green <mrg@eterna.com.au> Nick Hudson <skrll@netbsd.org> Maya Rashish <coypu@sdf.org> Richard Earnshaw <rearnsha@arm.com> gcc: * config.gcc (arm*-*-netbsdelf*) Add support for EABI configuration. * config.host (arm*-*-netbsd*): Use driver-arm.o on native NetBSD. * config/arm/netbsd-eabi.h: New file. * config/arm/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Undefine before redefining. (SUBTARGET_EXTRA_ASM_SPEC): Don't pass -matpcs to the assembler. * config/netbsd-elf.h (NETBSD_LINK_LD_ELF_SO_SPEC): New define. (NETBSD_SUBTARGET_EXTRA_SPECS): New define. (SUBTARGET_EXTRA_SPECS): Define to NETBSD_SUBTARGET_EXTRA_SPECS. libatomic: * configure.tgt (arm*): Handle NetBSD in the same way as FreeBSD. libgcc: * config.host (arm*-*-netbsdelf*): Add support for EABI configurations. * config/arm/t-netbsd (LIB1ASMFUNCS): Add some additional assembler functions to build. * config/arm/t-netbsd-eabi: New file. Co-Authored-By: Matthew Green <mrg@eterna.com.au> Co-Authored-By: Maya Rashish <coypu@sdf.org> Co-Authored-By: Nick Hudson <skrll@netbsd.org> Co-Authored-By: Richard Earnshaw <rearnsha@arm.com> From-SVN: r272290
This commit is contained in:
Matt Thomas
Richard Earnshaw
parent
cc28d23496
commit
b27c108234
@ -1,3 +1,19 @@
|
||||
2019-06-14 Matt Thomas <matt@3am-software.com>
|
||||
Matthew Green <mrg@eterna.com.au>
|
||||
Nick Hudson <skrll@netbsd.org>
|
||||
Maya Rashish <coypu@sdf.org>
|
||||
Richard Earnshaw <rearnsha@arm.com>
|
||||
|
||||
* config.gcc (arm*-*-netbsdelf*) Add support for EABI configuration.
|
||||
* config.host (arm*-*-netbsd*): Use driver-arm.o on native NetBSD.
|
||||
* config/arm/netbsd-eabi.h: New file.
|
||||
* config/arm/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Undefine before
|
||||
redefining.
|
||||
(SUBTARGET_EXTRA_ASM_SPEC): Don't pass -matpcs to the assembler.
|
||||
* config/netbsd-elf.h (NETBSD_LINK_LD_ELF_SO_SPEC): New define.
|
||||
(NETBSD_SUBTARGET_EXTRA_SPECS): New define.
|
||||
(SUBTARGET_EXTRA_SPECS): Define to NETBSD_SUBTARGET_EXTRA_SPECS.
|
||||
|
||||
2019-06-14 Richard Biener <rguenther@suse.de>
|
||||
|
||||
* tree-loop-distribution.c (classify_partition): Return
|
||||
|
||||
@ -1162,10 +1162,35 @@ arm*-*-freebsd*) # ARM FreeBSD EABI
|
||||
with_tls=${with_tls:-gnu}
|
||||
;;
|
||||
arm*-*-netbsdelf*)
|
||||
tm_file="dbxelf.h elfos.h ${nbsd_tm_file} arm/elf.h arm/aout.h ${tm_file} arm/netbsd-elf.h"
|
||||
extra_options="${extra_options} netbsd.opt netbsd-elf.opt"
|
||||
tmake_file="${tmake_file} arm/t-arm"
|
||||
target_cpu_cname="strongarm"
|
||||
tmake_file="${tmake_file} arm/t-arm"
|
||||
tm_file="dbxelf.h elfos.h ${nbsd_tm_file} arm/elf.h"
|
||||
extra_options="${extra_options} netbsd.opt netbsd-elf.opt"
|
||||
case ${target} in
|
||||
arm*eb-*) tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1" ;;
|
||||
esac
|
||||
case ${target} in
|
||||
arm*-*-netbsdelf-*eabi*)
|
||||
tm_file="$tm_file arm/bpabi.h arm/netbsd-elf.h arm/netbsd-eabi.h"
|
||||
tmake_file="$tmake_file arm/t-bpabi arm/t-netbsdeabi"
|
||||
;;
|
||||
*)
|
||||
tm_file="$tm_file arm/netbsd-elf.h"
|
||||
tmake_file="$tmake_file arm/t-netbsd"
|
||||
;;
|
||||
esac
|
||||
tm_file="${tm_file} arm/aout.h arm/arm.h"
|
||||
case ${target} in
|
||||
arm*-*-netbsdelf-*eabihf*)
|
||||
# Hard-float requires at least Arm v5te
|
||||
target_cpu_cname="arm10e"
|
||||
tm_defines="${tm_defines} TARGET_DEFAULT_FLOAT_ABI=ARM_FLOAT_ABI_HARD"
|
||||
;;
|
||||
esac
|
||||
case ${target} in
|
||||
armv6*) target_cpu_cname="arm1176jzf-s";;
|
||||
armv7*) target_cpu_cname="generic-armv7-a";;
|
||||
esac
|
||||
;;
|
||||
arm*-*-linux-*) # ARM GNU/Linux with ELF
|
||||
tm_file="dbxelf.h elfos.h gnu-user.h linux.h linux-android.h glibc-stdint.h arm/elf.h arm/linux-gas.h arm/linux-elf.h"
|
||||
|
||||
@ -107,7 +107,7 @@ case ${host} in
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
arm*-*-freebsd* | arm*-*-linux* | arm*-*-fuchsia*)
|
||||
arm*-*-freebsd* | arm*-*-netbsd* | arm*-*-linux* | arm*-*-fuchsia*)
|
||||
case ${target} in
|
||||
arm*-*-*)
|
||||
host_extra_gcc_objs="driver-arm.o"
|
||||
|
||||
105
gcc/config/arm/netbsd-eabi.h
Normal file
105
gcc/config/arm/netbsd-eabi.h
Normal file
@ -0,0 +1,105 @@
|
||||
/* Definitions of target machine for GNU compiler, NetBSD/arm ELF version.
|
||||
Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
|
||||
Contributed by Wasabi Systems, Inc.
|
||||
|
||||
This file is part of GCC.
|
||||
|
||||
GCC is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published
|
||||
by the Free Software Foundation; either version 3, or (at your
|
||||
option) any later version.
|
||||
|
||||
GCC is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
||||
License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GCC; see the file COPYING3. If not see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
/* Run-time Target Specification. */
|
||||
#undef MULTILIB_DEFAULTS
|
||||
#define MULTILIB_DEFAULTS { "mabi=aapcs-linux" }
|
||||
|
||||
#define TARGET_LINKER_EABI_SUFFIX_SOFT \
|
||||
"%{!mabi=apcs-gnu:%{!mabi=atpcs:%{mfloat-abi=hard:_eabihf;:_eabi}}}"
|
||||
#define TARGET_LINKER_EABI_SUFFIX_HARD \
|
||||
"%{!mabi=apcs-gnu:%{!mabi=atpcs:%{mfloat-abi=soft:_eabi;:_eabihf}}}"
|
||||
|
||||
#define TARGET_LINKER_EABI_SUFFIX \
|
||||
(TARGET_DEFAULT_FLOAT_ABI == ARM_FLOAT_ABI_SOFT \
|
||||
? TARGET_LINKER_EABI_SUFFIX_SOFT \
|
||||
: TARGET_LINKER_EABI_SUFFIX_HARD)
|
||||
|
||||
#define TARGET_LINKER_BIG_EMULATION "armelfb_nbsd%(linker_eabi_suffix)"
|
||||
#define TARGET_LINKER_LITTLE_EMULATION "armelf_nbsd%(linker_eabi_suffix)"
|
||||
|
||||
/* TARGET_BIG_ENDIAN_DEFAULT is set in
|
||||
config.gcc for big endian configurations. */
|
||||
#undef TARGET_LINKER_EMULATION
|
||||
#if TARGET_BIG_ENDIAN_DEFAULT
|
||||
#define TARGET_LINKER_EMULATION TARGET_LINKER_BIG_EMULATION
|
||||
#else
|
||||
#define TARGET_LINKER_EMULATION TARGET_LINKER_LITTLE_EMULATION
|
||||
#endif
|
||||
|
||||
#undef ARM_DEFAULT_ABI
|
||||
#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
|
||||
|
||||
#undef ARM_UNWIND_INFO
|
||||
#define ARM_UNWIND_INFO 0
|
||||
#undef DWARF2_UNWIND_INFO
|
||||
#define DWARF2_UNWIND_INFO 1
|
||||
|
||||
#undef TARGET_OS_CPP_BUILTINS
|
||||
#define TARGET_OS_CPP_BUILTINS() \
|
||||
do \
|
||||
{ \
|
||||
if (TARGET_AAPCS_BASED) \
|
||||
TARGET_BPABI_CPP_BUILTINS(); \
|
||||
NETBSD_OS_CPP_BUILTINS_ELF(); \
|
||||
if (DWARF2_UNWIND_INFO) \
|
||||
builtin_define ("__ARM_DWARF_EH__"); \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
#undef SUBTARGET_CPP_SPEC
|
||||
#define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
|
||||
|
||||
/*
|
||||
* Override AAPCS types to remain compatible the existing NetBSD types.
|
||||
*/
|
||||
#undef WCHAR_TYPE
|
||||
#define WCHAR_TYPE "int"
|
||||
|
||||
#undef SIZE_TYPE
|
||||
#define SIZE_TYPE "long unsigned int"
|
||||
|
||||
#undef PTRDIFF_TYPE
|
||||
#define PTRDIFF_TYPE "long int"
|
||||
|
||||
#undef SUBTARGET_EXTRA_ASM_SPEC
|
||||
#define SUBTARGET_EXTRA_ASM_SPEC \
|
||||
"%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu} " \
|
||||
"%{fpic|fpie:-k} " \
|
||||
"%{fPIC|fPIE:-k}"
|
||||
|
||||
#undef SUBTARGET_EXTRA_SPECS
|
||||
#define SUBTARGET_EXTRA_SPECS \
|
||||
{ "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, \
|
||||
{ "linker_eabi_suffix", TARGET_LINKER_EABI_SUFFIX }, \
|
||||
{ "linker_emulation", TARGET_LINKER_EMULATION }, \
|
||||
{ "linker_big_emulation", TARGET_LINKER_BIG_EMULATION }, \
|
||||
{ "linker_little_emulation", TARGET_LINKER_LITTLE_EMULATION }, \
|
||||
{ "target_fix_v4bx_spec", TARGET_FIX_V4BX_SPEC }, \
|
||||
NETBSD_SUBTARGET_EXTRA_SPECS
|
||||
|
||||
#define NETBSD_ENTRY_POINT "__start"
|
||||
|
||||
#undef LINK_SPEC
|
||||
#define LINK_SPEC \
|
||||
"-X %{mbig-endian:-EB -m %(linker_big_emulation)} " \
|
||||
"%{mlittle-endian:-EL -m %(linker_liitle_emulation)} " \
|
||||
"%{!mbig-endian:%{!mlittle-endian:-m %(linker_emulation)}} " \
|
||||
"%(target_fix_v4bx_spec) %(netbsd_link_spec)"
|
||||
@ -43,6 +43,7 @@
|
||||
#undef ARM_DEFAULT_ABI
|
||||
#define ARM_DEFAULT_ABI ARM_ABI_ATPCS
|
||||
|
||||
#undef TARGET_OS_CPP_BUILTINS
|
||||
#define TARGET_OS_CPP_BUILTINS() \
|
||||
do \
|
||||
{ \
|
||||
@ -55,7 +56,7 @@
|
||||
|
||||
#undef SUBTARGET_EXTRA_ASM_SPEC
|
||||
#define SUBTARGET_EXTRA_ASM_SPEC \
|
||||
"-matpcs %{" FPIE_OR_FPIC_SPEC ":-k}"
|
||||
"%{" FPIE_OR_FPIC_SPEC ":-k}"
|
||||
|
||||
/* Default to full VFP if -mfloat-abi=hard is specified. */
|
||||
#undef SUBTARGET_ASM_FLOAT_SPEC
|
||||
@ -87,13 +88,13 @@
|
||||
/* We don't have any limit on the length as out debugger is GDB. */
|
||||
#undef DBX_CONTIN_LENGTH
|
||||
|
||||
/* NetBSD does its profiling differently to the Acorn compiler. We
|
||||
/* NetBSD does its profiling differently to the Acorn compiler. We
|
||||
don't need a word following the mcount call; and to skip it
|
||||
requires either an assembly stub or use of fomit-frame-pointer when
|
||||
requires either an assembly stub or use of fomit-frame-pointer when
|
||||
compiling the profiling functions. Since we break Acorn CC
|
||||
compatibility below a little more won't hurt. */
|
||||
|
||||
#undef ARM_FUNCTION_PROFILER
|
||||
|
||||
#undef ARM_FUNCTION_PROFILER
|
||||
#define ARM_FUNCTION_PROFILER(STREAM,LABELNO) \
|
||||
{ \
|
||||
asm_fprintf (STREAM, "\tmov\t%Rip, %Rlr\n"); \
|
||||
@ -110,22 +111,22 @@
|
||||
boundary. However this causes problems with bugged NetBSD kernel
|
||||
code (possibly userland code as well - I have not checked every
|
||||
binary). The nature of this bugged code is to rely on sizeof()
|
||||
returning the correct size of various structures rounded to the
|
||||
returning the correct size of various structures rounded to the
|
||||
nearest byte (SCSI and ether code are two examples, the vm system
|
||||
is another). This code breaks when the structure alignment is 32
|
||||
as sizeof() will report a word=rounded size. By changing the
|
||||
as sizeof() will report a word=rounded size. By changing the
|
||||
structure alignment to 8. GCC will conform to what is expected by
|
||||
NetBSD.
|
||||
|
||||
|
||||
This has several side effects that should be considered.
|
||||
1. Structures will only be aligned to the size of the largest member.
|
||||
i.e. structures containing only bytes will be byte aligned.
|
||||
structures containing shorts will be half word aligned.
|
||||
structures containing ints will be word aligned.
|
||||
|
||||
structures containing shorts will be half word aligned.
|
||||
structures containing ints will be word aligned.
|
||||
|
||||
This means structures should be padded to a word boundary if
|
||||
alignment of 32 is required for byte structures etc.
|
||||
|
||||
|
||||
2. A potential performance penalty may exist if strings are no longer
|
||||
word aligned. GCC will not be able to use word load/stores to copy
|
||||
short strings.
|
||||
|
||||
@ -73,6 +73,9 @@ along with GCC; see the file COPYING3. If not see
|
||||
|
||||
Target-specific code must provide the %(netbsd_entry_point) spec. */
|
||||
|
||||
#define NETBSD_LINK_LD_ELF_SO_SPEC \
|
||||
"%{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}"
|
||||
|
||||
#define NETBSD_LINK_SPEC_ELF \
|
||||
"%{assert*} %{R*} %{rpath*} \
|
||||
%{shared:-shared} \
|
||||
@ -87,6 +90,17 @@ along with GCC; see the file COPYING3. If not see
|
||||
-dynamic-linker /usr/libexec/ld.elf_so} \
|
||||
%{static:-static}}"
|
||||
|
||||
/* Provide the standard list of subtarget extra specs for NetBSD targets. */
|
||||
#define NETBSD_SUBTARGET_EXTRA_SPECS \
|
||||
{ "netbsd_link_ld_elf_so", NETBSD_LINK_LD_ELF_SO_SPEC }, \
|
||||
{ "netbsd_cpp_spec", NETBSD_CPP_SPEC }, \
|
||||
{ "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \
|
||||
{ "netbsd_entry_point", NETBSD_ENTRY_POINT }, \
|
||||
{ "netbsd_endfile_spec", NETBSD_ENDFILE_SPEC },
|
||||
|
||||
#undef SUBTARGET_EXTRA_SPECS
|
||||
#define SUBTARGET_EXTRA_SPECS NETBSD_SUBTARGET_EXTRA_SPECS
|
||||
|
||||
/* Use --as-needed -lgcc_s for eh support. */
|
||||
#ifdef HAVE_LD_AS_NEEDED
|
||||
#define USE_LD_AS_NEEDED 1
|
||||
|
||||
@ -1,3 +1,10 @@
|
||||
2019-06-14 Matt Thomas <matt@3am-software.com>
|
||||
Matthew Green <mrg@eterna.com.au>
|
||||
Nick Hudson <skrll@netbsd.org>
|
||||
Maya Rashish <coypu@sdf.org>
|
||||
|
||||
* configure.tgt (arm*): Handle NetBSD in the same way as FreeBSD.
|
||||
|
||||
2019-01-01 Jakub Jelinek <jakub@redhat.com>
|
||||
|
||||
Update copyright years.
|
||||
|
||||
@ -53,7 +53,7 @@ case "${target_cpu}" in
|
||||
arm*)
|
||||
ARCH=arm
|
||||
case "${target}" in
|
||||
arm*-*-freebsd*)
|
||||
arm*-*-freebsd* | arm*-*-netbsd*)
|
||||
;;
|
||||
*)
|
||||
# ??? Detect when -march=armv7 is already enabled.
|
||||
|
||||
@ -1,3 +1,13 @@
|
||||
2019-06-14 Matt Thomas <matt@3am-software.com>
|
||||
Matthew Green <mrg@eterna.com.au>
|
||||
Nick Hudson <skrll@netbsd.org>
|
||||
Maya Rashish <coypu@sdf.org>
|
||||
|
||||
* config.host (arm*-*-netbsdelf*): Add support for EABI configurations.
|
||||
* config/arm/t-netbsd (LIB1ASMFUNCS): Add some additional assembler
|
||||
functions to build.
|
||||
* config/arm/t-netbsd-eabi: New file.
|
||||
|
||||
2019-06-12 Dimitar Dimitrov <dimitar@dinux.eu>
|
||||
|
||||
* config.host: Add PRU target.
|
||||
|
||||
@ -436,7 +436,16 @@ arm*-*-fuchsia*)
|
||||
unwind_header=config/arm/unwind-arm.h
|
||||
;;
|
||||
arm*-*-netbsdelf*)
|
||||
tmake_file="$tmake_file arm/t-arm arm/t-netbsd t-slibgcc-gld-nover"
|
||||
tmake_file="$tmake_file arm/t-arm"
|
||||
case ${host} in
|
||||
arm*-*-netbsdelf-*eabi*)
|
||||
tmake_file="${tmake_file} arm/t-netbsd-eabi"
|
||||
unwind_header=config/arm/unwind-arm.h
|
||||
;;
|
||||
*)
|
||||
tmake_file="${tmake_file} arm/t-netbsd t-slibgcc-gld-nover"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
arm*-*-linux*) # ARM GNU/Linux with ELF
|
||||
tmake_file="${tmake_file} arm/t-arm t-fixedpoint-gnu-prefix t-crtfm"
|
||||
|
||||
@ -1,3 +1,11 @@
|
||||
# This list is from t-elf, but with some things removed.
|
||||
LIB1ASMFUNCS += _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func \
|
||||
_call_via_rX _interwork_call_via_rX \
|
||||
_arm_fixunsdfsi _arm_fixunssfsi \
|
||||
_arm_floatdidf _arm_floatdisf _arm_floatundidf _arm_floatundisf \
|
||||
_lshrdi3 _ashrdi3 _ashldi3 \
|
||||
_clzsi2 _clzdi2 _ctzsi2
|
||||
|
||||
# Just for these, we omit the frame pointer since it makes such a big
|
||||
# difference. It is then pointless adding debugging.
|
||||
HOST_LIBGCC2_CFLAGS += -fomit-frame-pointer
|
||||
|
||||
18
libgcc/config/arm/t-netbsd-eabi
Normal file
18
libgcc/config/arm/t-netbsd-eabi
Normal file
@ -0,0 +1,18 @@
|
||||
# This list is from t-elf, but with lots removed.
|
||||
LIB1ASMFUNCS += _dvmd_tls _bb_init_func _call_via_rX _interwork_call_via_rX \
|
||||
_clzsi2 _clzdi2 _ctzsi2
|
||||
|
||||
# Derived from t-bpabi
|
||||
# Add the BPABI C functions.
|
||||
LIB2ADD += $(srcdir)/config/arm/unaligned-funcs.c
|
||||
|
||||
# Not using libgcc for EH.
|
||||
LIB2ADDEH =
|
||||
|
||||
# Add the BPABI names.
|
||||
SHLIB_MAPFILES += $(srcdir)/config/arm/libgcc-bpabi.ver
|
||||
|
||||
# On ARM, specifying -fnon-call-exceptions will needlessly pull in
|
||||
# the unwinder in simple programs which use 64-bit division. Omitting
|
||||
# the option is safe.
|
||||
LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions
|
||||
Loading…
Reference in New Issue
Block a user