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Support armv7 builds for userland

Browse source 
Make armv7 as a new MACHINE_ARCH.

Copy all the places we do armv6 and add armv7 as basically an
alias. clang appears to generate code for armv7 by default. armv7 hard
float isn't supported by the the in-tree gcc, so it hasn't been
updated to have a new default.

Support armv7 as a new valid MACHINE_ARCH (and by extension
TARGET_ARCH).

Add armv7 to the universe build.

Differential Revision: https://reviews.freebsd.org/D12010
This commit is contained in:
Warner Losh 2017-10-05 23:01:33 +00:00
parent b1bad39103
commit 0b972ac92e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=324340
24 changed files with 49 additions and 40 deletions
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2
Makefile
View file

@ -435,7 +435,7 @@ worlds: .PHONY
.if make(universe) || make(universe_kernels) || make(tinderbox) || make(targets)
TARGETS?=amd64 arm arm64 i386 mips powerpc riscv sparc64
_UNIVERSE_TARGETS= ${TARGETS}
TARGET_ARCHES_arm?= arm armeb armv6
TARGET_ARCHES_arm?= arm armeb armv6 armv7
TARGET_ARCHES_arm64?= aarch64
TARGET_ARCHES_mips?= mipsel mips mips64el mips64 mipsn32 mipselhf mipshf mips64elhf mips64hf
TARGET_ARCHES_powerpc?= powerpc powerpc64 powerpcspe

5
Makefile.inc1
View file

@ -398,6 +398,7 @@ KNOWN_ARCHES?= aarch64/arm64 \
arm \
armeb/arm \
armv6/arm \
armv7/arm \
i386 \
mips \
mipsel/mips \
@ -614,7 +615,7 @@ BFLAGS+= -B${CROSS_BINUTILS_PREFIX}
BFLAGS+= -B${WORLDTMP}/usr/bin
.endif
.if ${TARGET} == "arm"
.if ${TARGET_ARCH:Marmv6*} != "" && ${TARGET_CPUTYPE:M*soft*} == ""
.if ${TARGET_ARCH:Marmv[67]*} != "" && ${TARGET_CPUTYPE:M*soft*} == ""
TARGET_ABI= gnueabihf
.else
TARGET_ABI= gnueabi
@ -650,7 +651,7 @@ XCFLAGS+= ${BFLAGS}
${TARGET_ARCH} == "powerpc64" || ${TARGET_ARCH:Mmips64*} != "")
LIBCOMPAT= 32
.include "Makefile.libcompat"
.elif ${MK_LIBSOFT} != "no" && ${TARGET_ARCH} == "armv6"
.elif ${MK_LIBSOFT} != "no" && ${TARGET_ARCH:Marmv[67]*} != ""
LIBCOMPAT= SOFT
.include "Makefile.libcompat"
.endif

4
Makefile.libcompat
View file

@ -59,10 +59,10 @@ LIB32WMAKEFLAGS+= -DCOMPAT_32BIT
# -------------------------------------------------------------------
# soft-fp world
.if ${TARGET_ARCH} == "armv6"
.if ${TARGET_ARCH:Marmv[67]*} != ""
LIBSOFTCFLAGS= -DCOMPAT_SOFTFP
LIBSOFTCPUFLAGS= -mfloat-abi=softfp
LIBSOFTWMAKEENV= CPUTYPE=soft MACHINE=arm MACHINE_ARCH=armv6
LIBSOFTWMAKEENV= CPUTYPE=soft MACHINE=arm MACHINE_ARCH=${TARGET_ARCH}
LIBSOFTWMAKEFLAGS= -DCOMPAT_SOFTFP
.endif

5
gnu/usr.bin/binutils/as/Makefile
View file

@ -46,9 +46,12 @@ SRCS+= app.c \
# DEO: why not used?
#SRCS+= itbl-ops.c
.if ${TARGET_ARCH} == "armv6" || ${TARGET_ARCH} == "armv6eb"
.if ${TARGET_ARCH:Marmv6*} != ""
CFLAGS+= -DCPU_DEFAULT=ARM_ARCH_V6K
.endif
.if ${TARGET_ARCH:Marmv7*} != ""
CFLAGS+= -DCPU_DEFAULT=ARM_ARCH_V7A
.endif
.if ${TARGET_CPUARCH} == "mips"
SRCS+= itbl-ops.c itbl-parse.y itbl-lex.l

5
gnu/usr.bin/cc/Makefile.inc
View file

@ -34,9 +34,12 @@ CFLAGS+= -DTARGET_ARM_EABI
.if ${TARGET_ARCH:Marm*eb} != ""
CFLAGS += -DTARGET_ENDIAN_DEFAULT=MASK_BIG_END
.endif
.if ${TARGET_ARCH} == "armv6" || ${TARGET_ARCH} == "armv6eb"
.if ${TARGET_ARCH:Marmv6*} != ""
CFLAGS += -DFREEBSD_ARCH_armv6
.endif
.if ${TARGET_ARCH:Marmv7*} != ""
CFLAGS += -DFREEBSD_ARCH_armv7
.endif
.if ${TARGET_CPUARCH} == "mips"
.if ${TARGET_ARCH:Mmips*el*} != ""

4
lib/clang/llvm.build.mk
View file

@ -20,10 +20,10 @@ CFLAGS+= -D__STDC_CONSTANT_MACROS
TARGET_ARCH?= ${MACHINE_ARCH}
BUILD_ARCH?= ${MACHINE_ARCH}
# Armv6 uses hard float abi, unless the CPUTYPE has soft in it.
# Armv6 and armv7 uses hard float abi, unless the CPUTYPE has soft in it.
# arm (for armv4 and armv5 CPUs) always uses the soft float ABI.
# For all other targets, we stick with 'unknown'.
.if ${TARGET_ARCH:Marmv6*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
.if ${TARGET_ARCH:Marmv[67]*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
TARGET_ABI= -gnueabihf
.elif ${TARGET_ARCH:Marm*}
TARGET_ABI= -gnueabi

2
lib/libc/Makefile
View file

@ -110,7 +110,7 @@ NOASM=
.include "${LIBC_SRCTOP}/uuid/Makefile.inc"
.include "${LIBC_SRCTOP}/xdr/Makefile.inc"
.if (${LIBC_ARCH} == "arm" && \
(${MACHINE_ARCH:Marmv6*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
(${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
(${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
(${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
.include "${LIBC_SRCTOP}/softfloat/Makefile.inc"

2
lib/libc/arm/Makefile.inc
View file

@ -11,7 +11,7 @@ SYM_MAPS+=${LIBC_SRCTOP}/arm/Symbol.map
.include "${LIBC_SRCTOP}/arm/aeabi/Makefile.inc"
.if ${MACHINE_ARCH:Marmv6*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
.if ${MACHINE_ARCH:Marmv[67]*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
SYM_MAPS+=${LIBC_SRCTOP}/arm/Symbol_vfp.map
.endif

6
lib/libc/arm/aeabi/Makefile.inc
View file

@ -5,14 +5,14 @@
SRCS+= aeabi_atexit.c \
aeabi_unwind_cpp.c \
aeabi_unwind_exidx.c
.if (${MACHINE_ARCH:Marmv6*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != "") || \
${MACHINE_ARCH:Marmv6*} == ""
.if (${MACHINE_ARCH:Marmv[67]*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != "") || \
${MACHINE_ARCH:Marmv[67]*} == ""
SRCS+= aeabi_asm_double.S \
aeabi_asm_float.S \
aeabi_double.c \
aeabi_float.c
.endif
.if ${MACHINE_ARCH:Marmv6*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
.if ${MACHINE_ARCH:Marmv[67]*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
SRCS+= aeabi_vfp_double.S \
aeabi_vfp_float.S
.endif

2
lib/libc/arm/gen/Makefile.inc
View file

@ -7,7 +7,7 @@ SRCS+= _ctx_start.S _setjmp.S _set_tp.c alloca.S fabs.c \
arm_initfini.c \
trivial-getcontextx.c
.if ${MACHINE_ARCH:Marmv6*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
.if ${MACHINE_ARCH:Marmv[67]*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
SRCS+= fpgetmask_vfp.c fpgetround_vfp.c fpgetsticky_vfp.c fpsetmask_vfp.c \
fpsetround_vfp.c fpsetsticky_vfp.c
.endif

2
lib/libc/sys/Makefile.inc
View file

@ -124,7 +124,7 @@ SYM_MAPS+= ${LIBC_SRCTOP}/sys/Symbol.map
CLEANFILES+= ${SASM} ${SPSEUDO}
.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" || \
${MACHINE_CPUARCH} == "powerpc" || ${MACHINE_ARCH:Marmv6*}
${MACHINE_CPUARCH} == "powerpc" || ${MACHINE_ARCH:Marmv[67]*}
NOTE_GNU_STACK='\t.section .note.GNU-stack,"",%%progbits\n'
.else
NOTE_GNU_STACK=''

2
lib/libcompiler_rt/Makefile.inc
View file

@ -204,7 +204,7 @@ SRCF+= stdatomic
.endif
.for file in ${SRCF}
.if ${MACHINE_ARCH:Marmv6*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "") \
.if ${MACHINE_ARCH:Marmv[67]*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "") \
&& exists(${CRTSRC}/${CRTARCH}/${file}vfp.S)
SRCS+= ${file}vfp.S
. elif exists(${CRTSRC}/${CRTARCH}/${file}.S)

2
lib/msun/arm/Makefile.inc
View file

@ -3,7 +3,7 @@
LDBL_PREC = 53
SYM_MAPS += ${.CURDIR}/arm/Symbol.map
.if ${MACHINE_ARCH:Marmv6*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
.if ${MACHINE_ARCH:Marmv[67]*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
ARCH_SRCS = fenv-softfp.c fenv-vfp.c
.endif

2
release/Makefile.mirrors
View file

@ -57,7 +57,7 @@ TLD?= ${FTPDIR}/releases
.endif
.if defined(EMBEDDED) && !empty(EMBEDDED)
. if ${TARGET:Marm*} != "" && (${TARGET_ARCH} == "armv6" || ${TARGET_ARCH} == "aarch64")
. if ${TARGET:Marm*} != "" && (${TARGET_ARCH:Marmv[67]} != "" || ${TARGET_ARCH} == "aarch64")
. if !defined(BOARDNAME) && empty(BOARDNAME)
BOARDNAME:= ${KERNCONF}
. else

24
share/mk/bsd.cpu.mk
View file

@ -110,8 +110,6 @@ _CPUCFLAGS = -march=${CPUTYPE}
_CPUCFLAGS = -march=armv5te -D__XSCALE__
. elif ${CPUTYPE:M*soft*} != ""
_CPUCFLAGS = -mfloat-abi=softfp
. elif ${CPUTYPE} == "armv6"
_CPUCFLAGS = -march=${CPUTYPE}
. elif ${CPUTYPE} == "cortexa"
_CPUCFLAGS = -march=armv7 -mfpu=vfp
. elif ${CPUTYPE:Marmv[4567]*} != ""
@ -339,18 +337,20 @@ MACHINE_CPU += arm
. if ${MACHINE_ARCH:Marmv6*} != ""
MACHINE_CPU += armv6
. endif
# armv6 is a hybrid. It can use the softfp ABI, but doesn't emulate
# floating point in the general case, so don't define softfp for
# it at this time. arm and armeb are pure softfp, so define it
# for them.
. if ${MACHINE_ARCH:Marmv6*} == ""
. if ${MACHINE_ARCH:Marmv7*} != ""
MACHINE_CPU += armv7
. endif
# armv6 and armv7 are a hybrid. It can use the softfp ABI, but doesn't emulate
# floating point in the general case, so don't define softfp for it at this
# time. arm and armeb are pure softfp, so define it for them.
. if ${MACHINE_ARCH:Marmv[67]*} == ""
MACHINE_CPU += softfp
. endif
# Normally armv6 is hard float ABI from FreeBSD 11 onwards. However
# when CPUTYPE has 'soft' in it, we use the soft-float ABI to allow
# building of soft-float ABI libraries. In this case, we have to
# add the -mfloat-abi=softfp to force that.
.if ${MACHINE_ARCH:Marmv6*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
# Normally armv6 and armv7 are hard float ABI from FreeBSD 11 onwards. However
# when CPUTYPE has 'soft' in it, we use the soft-float ABI to allow building of
# soft-float ABI libraries. In this case, we have to add the -mfloat-abi=softfp
# to force that.
.if ${MACHINE_ARCH:Marmv[67]*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
# Needs to be CFLAGS not _CPUCFLAGS because it's needed for the ABI
# not a nice optimization.
CFLAGS += -mfloat-abi=softfp

2
share/mk/local.meta.sys.mk
View file

@ -43,7 +43,7 @@ OBJROOT:= ${OBJROOT:H:tA}/${OBJROOT:T}
.endif
# from src/Makefile (for universe)
TARGET_ARCHES_arm?= arm armeb armv6
TARGET_ARCHES_arm?= arm armeb armv6 armv7
TARGET_ARCHES_arm64?= aarch64
TARGET_ARCHES_mips?= mipsel mips mips64el mips64 mipsn32 mipsn32el
TARGET_ARCHES_powerpc?= powerpc powerpc64 powerpcspe

2
share/mk/src.opts.mk
View file

@ -273,7 +273,7 @@ __DEFAULT_NO_OPTIONS+=GDB_LIBEXEC
__DEFAULT_YES_OPTIONS+=GDB_LIBEXEC
.endif
# Only doing soft float API stuff on armv6
.if ${__T} != "armv6"
.if ${__T} != "armv6" && ${__T} != "armv7"
BROKEN_OPTIONS+=LIBSOFT
.endif
.if ${__T:Mmips*}

2
share/mk/sys.mk
View file

@ -13,7 +13,7 @@ unix ?= We run FreeBSD, not UNIX.
# and/or endian. This is called MACHINE_CPU in NetBSD, but that's used
# for something different in FreeBSD.
#
__TO_CPUARCH=C/mips(n32|64)?(el)?(hf)?/mips/:C/arm(v6)?(eb)?/arm/:C/powerpc(64|spe)/powerpc/:C/riscv64(sf)?/riscv/
__TO_CPUARCH=C/mips(n32|64)?(el)?(hf)?/mips/:C/arm(v[67])?(eb)?/arm/:C/powerpc(64|spe)/powerpc/:C/riscv64(sf)?/riscv/
MACHINE_CPUARCH=${MACHINE_ARCH:${__TO_CPUARCH}}
.endif

2
sys/conf/Makefile.arm
View file

@ -75,7 +75,7 @@ FILES_CPU_FUNC = \
$S/$M/$M/cpufunc_asm_pj4b.S $S/$M/$M/cpufunc_asm_armv6.S \
$S/$M/$M/cpufunc_asm_armv7.S
.if ${MACHINE_ARCH} != "armv6" && defined(KERNPHYSADDR)
.if ${MACHINE_ARCH:Marmv[67]*} == "" && defined(KERNPHYSADDR)
KERNEL_EXTRA=trampoline
KERNEL_EXTRA_INSTALL=kernel.gz.tramp
trampoline: ${KERNEL_KO}.tramp

1
sys/conf/kern.mk
View file

@ -259,6 +259,7 @@ LD_EMULATION_amd64=elf_x86_64_fbsd
LD_EMULATION_arm=armelf_fbsd
LD_EMULATION_armeb=armelfb_fbsd
LD_EMULATION_armv6=armelf_fbsd
LD_EMULATION_armv7=armelf_fbsd
LD_EMULATION_i386=elf_i386_fbsd
LD_EMULATION_mips= elf32btsmip_fbsd
LD_EMULATION_mips64= elf64btsmip_fbsd

2
sys/conf/kern.opts.mk
View file

@ -62,7 +62,7 @@ __DEFAULT_NO_OPTIONS = \
# Things that don't work based on the CPU
.if ${MACHINE_CPUARCH} == "arm"
. if ${MACHINE_ARCH:Marmv6*} == ""
. if ${MACHINE_ARCH:Marmv[67]*} == ""
BROKEN_OPTIONS+= CDDL ZFS
. endif
.endif

1
sys/conf/kern.pre.mk
View file

@ -255,6 +255,7 @@ EMBEDFS_ARCH.${MACHINE_ARCH}!= sed -n '/OUTPUT_ARCH/s/.*(\(.*\)).*/\1/p' ${LDSCR
EMBEDFS_FORMAT.arm?= elf32-littlearm
EMBEDFS_FORMAT.armv6?= elf32-littlearm
EMBEDFS_FORMAT.armv7?= elf32-littlearm
EMBEDFS_FORMAT.aarch64?= elf64-littleaarch64
EMBEDFS_FORMAT.mips?= elf32-tradbigmips
EMBEDFS_FORMAT.mipsel?= elf32-tradlittlemips

6
sys/modules/Makefile
View file

@ -426,7 +426,7 @@ _autofs= autofs
.endif
.if ${MK_CDDL} != "no" || defined(ALL_MODULES)
.if (${MACHINE_CPUARCH} != "arm" || ${MACHINE_ARCH:Marmv6*} != "") && \
.if (${MACHINE_CPUARCH} != "arm" || ${MACHINE_ARCH:Marmv[67]*} != "") && \
${MACHINE_CPUARCH} != "mips" && \
${MACHINE_CPUARCH} != "sparc64"
SUBDIR+= dtrace
@ -800,7 +800,7 @@ _em= em
_epic= epic
.endif
.if (${MACHINE_CPUARCH} == "amd64" || ${MACHINE_ARCH} == "armv6" || \
.if (${MACHINE_CPUARCH} == "amd64" || ${MACHINE_ARCH:Marmv[67]*} != "" || \
${MACHINE_CPUARCH} == "i386")
_cloudabi32= cloudabi32
.endif
@ -810,7 +810,7 @@ _cloudabi64= cloudabi64
.endif
.if ${MACHINE_ARCH} == "armv6"
.if ${MACHINE_ARCH:Marmv[67]*} != ""
_ffec= ffec
.endif

2
sys/modules/cloudabi32/Makefile
View file

@ -18,7 +18,7 @@ CLEANFILES=cloudabi32_vdso.o
VDSO_SRCS=${SYSDIR}/contrib/cloudabi/cloudabi_vdso_i686_on_64bit.S
OUTPUT_TARGET=elf64-x86-64-freebsd
BINARY_ARCHITECTURE=i386
.elif ${MACHINE_ARCH} == "armv6"
.elif ${MACHINE_ARCH:Marmv[67]*} != ""
VDSO_SRCS=${SYSDIR}/contrib/cloudabi/cloudabi_vdso_armv6.S
OUTPUT_TARGET=elf32-littlearm
BINARY_ARCHITECTURE=arm