[build]: build ARM kernel support from sonic-linux-kernel (#3556)

* Makefile: ARM kernel support from sonic-linux-kernel
        * Fix for multiarch  build docker spawn
Platform: Install the DTB deb for the platform

Signed-off-by: Antony Rheneus <arheneus@marvell.com>

Makefile.work

@@ -126,7 +126,7 @@ ifneq (,$(filter $(CONFIGURED_ARCH), armhf arm64))
 
     DOCKER_MULTIARCH_CHECK := docker inspect --type image multiarch/qemu-user-static:register &> /dev/null || (echo "multiarch docker not found ..."; docker run --rm --privileged multiarch/qemu-user-static:register --reset --credential yes)
 
-    DOCKER_SERVICE_MULTIARCH_CHECK := docker -H unix:///var/run/march/docker.sock info &> /dev/null || (echo "Docker march service not running..."; sudo rm -fr /var/run/march/*; (sudo $(SONIC_NATIVE_DOCKERD_FOR_MUTLIARCH) &) &>/dev/null ; sleep 1; sudo $(SONIC_USERFACL_DOCKERD_FOR_MUTLIARCH);)
+    DOCKER_SERVICE_MULTIARCH_CHECK := docker -H unix:///var/run/march/docker.sock info &> /dev/null || (echo "Docker march service not running..."; sudo rm -fr /var/run/march/; (sudo $(SONIC_NATIVE_DOCKERD_FOR_MUTLIARCH) &) &>/dev/null ; sleep 1; sudo $(SONIC_USERFACL_DOCKERD_FOR_MUTLIARCH);)
 
    # Docker service to load the compiled dockers-*.gz 
     SONIC_NATIVE_DOCKERD_FOR_DOCKERFS := rm -fr $(PWD)/dockerfs/; mkdir -p $(PWD)/dockerfs/; sudo dockerd --storage-driver=overlay2 --iptables=false \
@@ -184,8 +184,10 @@ SONIC_BUILD_INSTRUCTION :=  make \
 %::
 ifneq (,$(filter $(CONFIGURED_ARCH), armhf arm64))
 	@$(DOCKER_MULTIARCH_CHECK)
+ifneq ($(BLDENV), )
 	@$(DOCKER_SERVICE_MULTIARCH_CHECK)
 	@$(DOCKER_SERVICE_DOCKERFS_CHECK)
+endif
 endif
 	@$(OVERLAY_MODULE_CHECK)
 	

build_debian.sh

@@ -132,16 +132,11 @@ fi
 sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y install busybox
 echo '[INFO] Install SONiC linux kernel image'
 ## Note: duplicate apt-get command to ensure every line return zero
-if [[ $CONFIGURED_ARCH == armhf || $CONFIGURED_ARCH == arm64 ]]; then
-    sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install cpio klibc-utils kmod libklibc udev linux-base
-    sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/linux-image-*${CONFIGURED_ARCH}*.deb || \
-        sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
-fi
 sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/initramfs-tools-core_*.deb || \
     sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
 sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/initramfs-tools_*.deb || \
     sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
-sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/linux-image-${LINUX_KERNEL_VERSION}-${CONFIGURED_ARCH}_*.deb || \
+sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/linux-image-${LINUX_KERNEL_VERSION}-*_${CONFIGURED_ARCH}.deb || \
     sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
 sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install acl
 [[ $CONFIGURED_ARCH == amd64 ]] && sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install dmidecode

platform/marvell-armhf/linux-kernel-armhf.mk

@@ -1,10 +1,7 @@
 # linux kernel package for marvell armhf
 
-KVERSION = 4.9.168
+# Add platform specific DTB
-
+LINUX_KERNEL_DTB = linux-image-4.9.168-armhf.deb
-
+$(LINUX_KERNEL_DTB)_URL = https://github.com/Marvell-switching/sonic-marvell-binaries/raw/master/armhf/kernel/$(LINUX_KERNEL_DTB)
-LINUX_KERNEL = linux-image-4.9.168-armhf.deb
+SONIC_ONLINE_DEBS += $(LINUX_KERNEL_DTB)
-export LINUX_KERNEL
+SONIC_STRETCH_DEBS += $(LINUX_KERNEL_DTB)
-
-$(LINUX_KERNEL)_SRC_PATH = $(PLATFORM_PATH)/linux
-SONIC_MAKE_DEBS += $(LINUX_KERNEL)

platform/marvell-armhf/linux/Makefile

@@ -2,9 +2,9 @@
 SHELL = /bin/bash
 .SHELLFLAGS += -e
 
-LINUX_KERNEL_MRVL_URL = https://github.com/Marvell-switching/sonic-marvell-binaries/raw/master/armhf/kernel/$(LINUX_KERNEL)
+LINUX_KERNEL_MRVL_URL = https://github.com/Marvell-switching/sonic-marvell-binaries/raw/master/armhf/kernel/$(LINUX_KERNEL_DTB)
 
-$(addprefix $(DEST)/, $(LINUX_KERNEL)): $(DEST)/% :
+$(addprefix $(DEST)/, $(LINUX_KERNEL_DTB)): $(DEST)/% :
 	# get deb package
-	wget -O $(DEST)/$(LINUX_KERNEL) $(LINUX_KERNEL_MRVL_URL)
+	wget -O $(DEST)/$(LINUX_KERNEL_DTB) $(LINUX_KERNEL_MRVL_URL)
 

platform/marvell-armhf/platform.conf

@@ -8,7 +8,7 @@ echo "Preparing for installation ... "
 kernel_addr=0x1100000
 fdt_addr=0x1000000
 
-image_name="/boot/zImage"
+image_name="/vmlinuz"
 fdt_name="/boot/armada-385-ET6448M_4G_Nand.dtb"
 
 # global mount defines

rules/linux-kernel.mk

@@ -4,6 +4,10 @@ KVERSION_SHORT = 4.9.0-9-2
 KVERSION = $(KVERSION_SHORT)-$(CONFIGURED_ARCH)
 KERNEL_VERSION = 4.9.168
 KERNEL_SUBVERSION = 1+deb9u5
+ifeq ($(CONFIGURED_ARCH), armhf)
+# Override kernel version for ARMHF as it uses arm MP (multi-platform) for short version
+KVERSION = $(KVERSION_SHORT)-armmp
+endif
 
 export KVERSION_SHORT KVERSION KERNEL_VERSION KERNEL_SUBVERSION
 

sonic-slave-stretch/Dockerfile.j2

@@ -156,6 +156,9 @@ RUN apt-get update && apt-get install -y \
 # For broadcom sdk build
 {%- if CONFIGURED_ARCH == "amd64" %}
         linux-compiler-gcc-6-x86 \
+{%- endif %}
+{%- if CONFIGURED_ARCH == "armhf" %}
+        linux-compiler-gcc-6-arm \
 {%- endif %}
         linux-kbuild-4.9 \
 # teamd build