From ade05eecd03ec2f0116f83f3b5fb33c902059932 Mon Sep 17 00:00:00 2001
From: Aleksandr Nogikh <nogikh@google.com>
Date: Fri, 18 Mar 2022 14:28:04 +0000
Subject: tools: generate bootable arm64 images with buildroot

---
 tools/create-buildroot-image.sh | 37 +++++++++++++++++++++++++++++++------
 1 file changed, 31 insertions(+), 6 deletions(-)

(limited to 'tools/create-buildroot-image.sh')

diff --git a/tools/create-buildroot-image.sh b/tools/create-buildroot-image.sh
index 7f704770d..07c763da6 100755
--- a/tools/create-buildroot-image.sh
+++ b/tools/create-buildroot-image.sh
@@ -7,7 +7,7 @@
 # TARGETARCH={amd64,arm64,arm,riscv64,s390x,mips64le,ppc64le} [NOMAKE=yes] create-buildroot-image.sh
 # If no NOMAKE=yes is specified, then it will just prepare the buildroot config,
 # but will not run the final make.
-# For amd64 it creates a bootable image with root partition
+# For amd64 and arm64 it creates a bootable image with root partition
 # on /dev/sda1 in output/images/disk.img file.
 # For other architectures it creates a non-bootable disk
 # suitable qemu injected boot with root partition on /dev/sda
@@ -23,7 +23,7 @@ case "$TARGETARCH" in
 	amd64)
 		DEFCONFIG="pc_x86_64_bios_defconfig";;
 	arm64)
-		DEFCONFIG="qemu_aarch64_virt_defconfig";;
+		DEFCONFIG="aarch64_efi_defconfig";;
 	arm)
 		DEFCONFIG="qemu_arm_vexpress_defconfig";;
 	riscv64)
@@ -40,7 +40,7 @@ case "$TARGETARCH" in
 esac
 
 git fetch origin
-git checkout 2021.11.x
+git checkout 2022.02
 
 make "${DEFCONFIG}"
 
@@ -117,8 +117,11 @@ EOF
         arm64)
                 cat >>.config <<EOF
 BR2_cortex_a57=y
-# Kernel is not needed for non-bootable images.
-# BR2_LINUX_KERNEL is not set
+BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
+BR2_LINUX_KERNEL_IMAGEGZ=y
+BR2_LINUX_KERNEL_GZIP=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/aarch64-efi/post-image.sh ./post_image_script.sh support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c ./custom-genimage-efi.cfg"
 EOF
 ;;
 	arm)
@@ -204,9 +207,31 @@ menuentry "syzkaller" {
 EOF
 EOFEOF
 ;;
+        arm64)
+cat >post_image_script.sh <<'EOFEOF'
+cat >${BINARIES_DIR}/efi-part/EFI/BOOT/grub.cfg <<EOF
+set default="0"
+set timeout="0"
+menuentry "syzkaller" {
+	linux /Image.gz root=PARTLABEL=root enforcing=0 console=ttyS0
+}
+EOF
+EOFEOF
+;;
+esac
+
+# Adjust consts in buildroot source files.
+case "$TARGETARCH" in
+  arm64)
+    cp board/aarch64-efi/genimage-efi.cfg custom-genimage-efi.cfg
+    # 64 MB is too small for our large images.
+    sed -i 's/size = 64M/size = 256M/g' custom-genimage-efi.cfg
+    # Also, use compressed images.
+    sed -i 's/Image/Image.gz/g' custom-genimage-efi.cfg
+    ;;
 esac
 
-chmod u+x rootfs_script.sh
+chmod u+x rootfs_script.sh post_image_script.sh
 
 make olddefconfig
 
-- 
cgit mrf-deployment