linux4.14: add ppc64 and ppc support

srcpkgs/linux4.14/patches/ppc64-be-elfv2.patch

@@ -0,0 +1,85 @@
+This makes the Linux kernel build as ELFv2 on big endian ppc64. The upstream
+doesn't seem to be interested in this but it's a small patch that is unlikely
+to break/easy to remake and in worst case can always be ditched.
+
+Using ELFv2 has some potential performance benefits and is already always used
+on little endian. It requires a relatively modern toolchain, which we already
+have.
+
+Ping q66 if it does not apply.
+
+--- a/arch/powerpc/Makefile	2020-01-05 14:40:50.395763093 +0100
++++ b/arch/powerpc/Makefile	2020-01-05 14:48:39.025251092 +0100
+@@ -86,10 +86,8 @@ MULTIPLEWORD	:= -mmultiple
+ endif
+ 
+ ifdef CONFIG_PPC64
+-cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+-cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mcall-aixdesc)
+-aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+-aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mabi=elfv2
++cflags-y    += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
++aflags-y    += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ endif
+ 
+ cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian
+@@ -130,14 +128,8 @@ endif
+ endif
+ 
+ CFLAGS-$(CONFIG_PPC64)	:= $(call cc-option,-mtraceback=no)
+-ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
+-AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2)
+-else
+-CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
+-CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcall-aixdesc)
+-AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
+-endif
++AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
+ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
+ CFLAGS-$(CONFIG_PPC32)	:= -ffixed-r2 $(MULTIPLEWORD)
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -44,8 +44,8 @@ ifdef CONFIG_CPU_BIG_ENDIAN
+ BOOTCFLAGS	+= -mbig-endian
+ else
+ BOOTCFLAGS	+= -mlittle-endian
+-BOOTCFLAGS	+= $(call cc-option,-mabi=elfv2)
+ endif
++BOOTCFLAGS	+= $(call cc-option,-mabi=elfv2)
+ 
+ BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
+ 
+--- a/drivers/crypto/vmx/Makefile	2020-01-01 10:56:10.560965046 +0100
++++ b/drivers/crypto/vmx/Makefile	2020-01-01 10:57:05.189968856 +0100
+@@ -5,7 +5,7 @@
+ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+ override flavour := linux-ppc64le
+ else
+-override flavour := linux-ppc64
++override flavour := linux-ppc64v2
+ endif
+ 
+ quiet_cmd_perl = PERL $@
+
+--- a/drivers/crypto/vmx/ppc-xlate.pl
++++ b/drivers/crypto/vmx/ppc-xlate.pl
+@@ -40,7 +40,7 @@ my $globl = sub {
+ };
+ my $text = sub {
+     my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
+-    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64le/);
++    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64(le|v2)/);
+     $ret;
+ };
+ my $machine = sub {
+@@ -142,7 +142,7 @@ my $vmr = sub {
+ 
+ # Some ABIs specify vrsave, special-purpose register #256, as reserved
+ # for system use.
+-my $no_vrsave = ($flavour =~ /linux-ppc64le/);
++my $no_vrsave = ($flavour =~ /linux-ppc64(le|v2)/);
+ my $mtspr = sub {
+     my ($f,$idx,$ra) = @_;
+     if ($idx == 256 && $no_vrsave) {

srcpkgs/linux4.14/template

@@ -17,9 +17,13 @@ noverifyrdeps=yes
 noshlibprovides=yes
 preserve=yes
 
-archs="i686* x86_64* armv5tel* armv7l* aarch64*"
+archs="i686* x86_64* armv5tel* armv7l* aarch64* ppc*"
 hostmakedepends="bc elfutils-devel kmod libressl-devel perl uboot-mkimage gmp-devel libmpc-devel"
 
+case "$XBPS_TARGET_MACHINE" in
+	ppc64le*) broken="No ppc64le support";;
+esac
+
 _kernver="${version}_${revision}"
 triggers="kernel-hooks"
 kernel_hooks_version="${_kernver}"
@@ -43,26 +47,28 @@ do_configure() {
 	# If there's a file called <arch>-dotconfig, use it to
 	# configure the kernel; otherwise use arch defaults and all stuff
 	# as modules (defconfig+allmodconfig).
-	local arch _args
+	local arch subarch _args
 
 	case "$XBPS_TARGET_MACHINE" in
 		i686*) arch=i386;;
 		x86_64*) arch=x86_64;;
 		armv5*|armv7*) arch=arm;;
 		aarch64*) arch=arm64;;
+		ppc64*) arch=powerpc; subarch=ppc64;;
+		ppc*) arch=powerpc;;
 	esac
 
 	if [ "$CROSS_BUILD" ]; then
 		_args="CROSS_COMPILE=${XBPS_CROSS_TRIPLET}-"
 	fi
 
-	if [ -f ${FILESDIR}/${arch}-dotconfig-custom ]; then
+	if [ -f ${FILESDIR}/${subarch:-$arch}-dotconfig-custom ]; then
 		msg_normal "Detected a custom .config file for your arch, using it.\n"
-		cp -f ${FILESDIR}/${arch}-dotconfig-custom .config
+		cp -f ${FILESDIR}/${subarch:-$arch}-dotconfig-custom .config
 		make ${makejobs} ARCH=$arch ${_args} oldconfig
-	elif [ -f ${FILESDIR}/${arch}-dotconfig ]; then
+	elif [ -f ${FILESDIR}/${subarch:-$arch}-dotconfig ]; then
 		msg_normal "Detected a .config file for your arch, using it.\n"
-		cp -f ${FILESDIR}/${arch}-dotconfig .config
+		cp -f ${FILESDIR}/${subarch:-$arch}-dotconfig .config
 		make ${makejobs} ARCH=$arch ${_args} oldconfig
 	elif [ -f ${FILESDIR}/${XBPS_TARGET_MACHINE%%-musl}-dotconfig ]; then
 		msg_normal "Detected a .config file for your cpu family, using it.\n"
@@ -84,6 +90,7 @@ do_build() {
 		x86_64*) _args="bzImage modules"; arch=x86_64;;
 		armv5*|armv7*) _args="zImage modules dtbs"; arch=arm;;
 		aarch64*) _args="Image modules dtbs"; arch=arm64;;
+		ppc*) _args="zImage modules"; arch=powerpc;;
 	esac
 	if [ "$CROSS_BUILD" ]; then
 		_cross="CROSS_COMPILE=${XBPS_CROSS_TRIPLET}-"
@@ -103,6 +110,7 @@ do_install() {
 		x86_64*) arch=x86; subarch=x86_64;;
 		armv5*|armv7*) arch=arm;;
 		aarch64*) arch=arm64;;
+		ppc*) arch=powerpc;;
 	esac
 
 	# Run depmod after compressing modules.
@@ -130,6 +138,12 @@ do_install() {
 			vmkdir boot/dtbs
 			cp arch/arm64/boot/dts/*/*.dtb ${DESTDIR}/boot/dtbs
 			;;
+		powerpc)
+			# zImage on powerpc is useless as it won't load initramfs
+			# raw vmlinux is huge, and this is nostrip, so do it manually
+			vinstall vmlinux 644 boot vmlinux-${_kernver}
+			/usr/bin/$STRIP ${DESTDIR}/boot/vmlinux-${_kernver}
+			;;
 	esac
 
 	# Switch to /usr.
@@ -251,11 +265,12 @@ do_install() {
 
 	# Remove unneeded architectures
 	case "$arch" in
-		i386|x86_64) _args="arm*";;
+		i386|x86_64) _args="arm* p*";;
-		arm|arm64) _args="x86*";;
+		arm|arm64) _args="x86* p*";;
+		powerpc) _args="arm* x86* parisc";;
 	esac
 	for arch in alpha avr32 blackfin cris frv h8300 \
-		ia64 m* p* s* um v850 xtensa ${_args}; do
+		ia64 m* s* um v850 xtensa ${_args}; do
 		rm -rf ${hdrdest}/arch/${arch}
 	done