Date: Mon, 6 Oct 2014 13:46:26 +0100 From: Andrew Turner <andrew@fubar.geek.nz> To: freebsd-arm@freebsd.org Subject: [RFC] Add and armv7hf TARGET_ARCH Message-ID: <20141006134626.59cc5573@bender.lan>
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[-- Attachment #1 --]
I'm interested in peoples opinion on creating a new TARGET_ARCH to
target ARMv7 SoCs. This will target all the current Cortex-A chips we
support but not the Raspberry Pi. My intention with this is to have it
become the tier 1 arm platform.
This platform will support 32-bit Cortex-A based SoCs with a VFP
unit. As it would be targeting ARMv7 we could look at supporting
Thumb-2.
As the VFP unit is optional and future SoCs without it will only be
supported by the armv6 TARGET_ARCH, however I would expect almost all
ARMv7 designs to include it.
There is a downside to this, and as far as I know the problems are:
* It could be confusing to figure out which TARGET_ARCH you need.
* The Raspberry Pi will not be supported as its core is too old.
I've attached my patch to build as armv7hf. It has been tested on a
Wandboard Quad.
Comments?
Andrew
[-- Attachment #2 --]
Index: Makefile
===================================================================
--- Makefile (revision 272619)
+++ Makefile (working copy)
@@ -168,7 +168,7 @@
_TARGET_ARCH= ${TARGET:S/pc98/i386/}
.elif !defined(TARGET) && defined(TARGET_ARCH) && \
${TARGET_ARCH} != ${MACHINE_ARCH}
-_TARGET= ${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/}
+_TARGET= ${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/}
.endif
.if defined(TARGET) && !defined(_TARGET)
_TARGET=${TARGET}
@@ -374,7 +374,7 @@
#
.if make(universe) || make(universe_kernels) || make(tinderbox) || make(targets)
TARGETS?=amd64 arm i386 mips pc98 powerpc sparc64
-TARGET_ARCHES_arm?= arm armeb armv6 armv6hf
+TARGET_ARCHES_arm?= arm armeb armv6 armv7hf
TARGET_ARCHES_mips?= mipsel mips mips64el mips64 mipsn32
TARGET_ARCHES_powerpc?= powerpc powerpc64
TARGET_ARCHES_pc98?= i386
Index: Makefile.inc1
===================================================================
--- Makefile.inc1 (revision 272619)
+++ Makefile.inc1 (working copy)
@@ -140,7 +140,7 @@
VERSION= FreeBSD ${REVISION}-${BRANCH:C/-p[0-9]+$//} ${TARGET_ARCH} ${SRCRELDATE}
.endif
-KNOWN_ARCHES?= amd64 arm armeb/arm armv6/arm armv6hf/arm i386 i386/pc98 mips mipsel/mips mips64el/mips mips64/mips mipsn32el/mips mipsn32/mips powerpc powerpc64/powerpc sparc64
+KNOWN_ARCHES?= amd64 arm armeb/arm armv6/arm armv7hf/arm i386 i386/pc98 mips mipsel/mips mips64el/mips mips64/mips mipsn32el/mips mipsn32/mips powerpc powerpc64/powerpc sparc64
.if ${TARGET} == ${TARGET_ARCH}
_t= ${TARGET}
.else
Index: contrib/llvm/lib/Target/ARM/ARMISelLowering.cpp
===================================================================
--- contrib/llvm/lib/Target/ARM/ARMISelLowering.cpp (revision 272619)
+++ contrib/llvm/lib/Target/ARM/ARMISelLowering.cpp (working copy)
@@ -2516,7 +2516,9 @@
// If we have T2 ops, we can materialize the address directly via movt/movw
// pair. This is always cheaper.
- if (Subtarget->useMovt()) {
+ if (Subtarget->useMovt() &&
+ (Subtarget->getTargetTriple().getOS() != Triple::FreeBSD ||
+ getTargetMachine().getRelocationModel() != Reloc::Static)) {
++NumMovwMovt;
// FIXME: Once remat is capable of dealing with instructions with register
// operands, expand this into two nodes.
Index: gnu/usr.bin/binutils/Makefile.inc0
===================================================================
--- gnu/usr.bin/binutils/Makefile.inc0 (revision 272619)
+++ gnu/usr.bin/binutils/Makefile.inc0 (working copy)
@@ -7,7 +7,7 @@
VERSION= "2.17.50 [FreeBSD] 2007-07-03"
.if defined(TARGET_ARCH)
-TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
+TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
.else
TARGET_CPUARCH=${MACHINE_CPUARCH}
.endif
Index: gnu/usr.bin/cc/Makefile.tgt
===================================================================
--- gnu/usr.bin/cc/Makefile.tgt (revision 272619)
+++ gnu/usr.bin/cc/Makefile.tgt (working copy)
@@ -4,7 +4,7 @@
# MACHINE_CPUARCH, but there's no easy way to export make functions...
.if defined(TARGET_ARCH)
-TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
+TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
.else
TARGET_CPUARCH=${MACHINE_CPUARCH}
.endif
Index: gnu/usr.bin/gdb/Makefile.inc
===================================================================
--- gnu/usr.bin/gdb/Makefile.inc (revision 272619)
+++ gnu/usr.bin/gdb/Makefile.inc (working copy)
@@ -21,7 +21,7 @@
# MACHINE_CPUARCH, but there's no easy way to export make functions...
.if defined(TARGET_ARCH)
-TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
+TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
.else
TARGET_CPUARCH=${MACHINE_CPUARCH}
.endif
Index: gnu/usr.bin/gdb/libgdb/Makefile
===================================================================
--- gnu/usr.bin/gdb/libgdb/Makefile (revision 272619)
+++ gnu/usr.bin/gdb/libgdb/Makefile (working copy)
@@ -4,7 +4,7 @@
# MACHINE_CPUARCH, but there's no easy way to export make functions...
.if defined(TARGET_ARCH)
-TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
+TARGET_CPUARCH=${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
.else
TARGET_CPUARCH=${MACHINE_CPUARCH}
.endif
Index: lib/clang/clang.build.mk
===================================================================
--- lib/clang/clang.build.mk (revision 272619)
+++ lib/clang/clang.build.mk (working copy)
@@ -30,8 +30,8 @@
TARGET_ABI= unknown
.endif
-TARGET_TRIPLE?= ${TARGET_ARCH:C/amd64/x86_64/:C/armv6hf/armv6/}-${TARGET_ABI}-freebsd11.0
-BUILD_TRIPLE?= ${BUILD_ARCH:C/amd64/x86_64/:C/armv6hf/armv6/}-unknown-freebsd11.0
+TARGET_TRIPLE?= ${TARGET_ARCH:C/amd64/x86_64/:C/armv7hf/armv7/}-${TARGET_ABI}-freebsd11.0
+BUILD_TRIPLE?= ${BUILD_ARCH:C/amd64/x86_64/:C/armv7hf/armv7/}-unknown-freebsd11.0
CFLAGS+= -DLLVM_DEFAULT_TARGET_TRIPLE=\"${TARGET_TRIPLE}\" \
-DLLVM_HOST_TRIPLE=\"${BUILD_TRIPLE}\" \
-DDEFAULT_SYSROOT=\"${TOOLS_PREFIX}\"
Index: lib/libc/arm/aeabi/Makefile.inc
===================================================================
--- lib/libc/arm/aeabi/Makefile.inc (revision 272619)
+++ lib/libc/arm/aeabi/Makefile.inc (working copy)
@@ -9,7 +9,7 @@
SRCS+= aeabi_double.c \
aeabi_float.c
.endif
-.if ${MACHINE_ARCH:Marmv6*}
+.if ${MACHINE_ARCH:Marmv[67]*}
SRCS+= aeabi_vfp_double.S \
aeabi_vfp_float.S
.endif
Index: lib/libkvm/Makefile
===================================================================
--- lib/libkvm/Makefile (revision 272619)
+++ lib/libkvm/Makefile (working copy)
@@ -3,7 +3,7 @@
.if defined(TARGET_ARCH) && !defined(COMPAT_32BIT)
KVM_XARCH=${TARGET_ARCH}
-KVM_XCPUARCH=${KVM_XARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
+KVM_XCPUARCH=${KVM_XARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
.else
KVM_XARCH=${MACHINE_ARCH}
KVM_XCPUARCH=${MACHINE_CPUARCH}
Index: share/mk/sys.mk
===================================================================
--- share/mk/sys.mk (revision 272619)
+++ share/mk/sys.mk (working copy)
@@ -13,7 +13,7 @@
# and/or endian. This is called MACHINE_CPU in NetBSD, but that's used
# for something different in FreeBSD.
#
-MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
+MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
.endif
# If the special target .POSIX appears (without prerequisites or
Index: usr.bin/xlint/Makefile.inc
===================================================================
--- usr.bin/xlint/Makefile.inc (revision 272619)
+++ usr.bin/xlint/Makefile.inc (working copy)
@@ -8,7 +8,7 @@
# These assignments duplicate much of the functionality of
# MACHINE_CPUARCH, but there's no easy way to export make functions...
.if defined(TARGET_ARCH)
-TARGET_CPUARCH= ${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/}
+TARGET_CPUARCH= ${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6|v7)?(eb|hf)?/arm/}
.else
TARGET_CPUARCH= ${MACHINE_CPUARCH}
TARGET_ARCH= ${MACHINE_ARCH}
help
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