From f487a01fc33277e4b5ec679a01c3837696453bf5 Mon Sep 17 00:00:00 2001
From: Matt Madison <matt@madison.systems>
Date: Fri, 31 Dec 2021 09:18:06 -0800
Subject: [PATCH] classes: add image_types_esp.bbclass

for creating an EFI system partition in the right format.

Signed-off-by: Matt Madison <matt@madison.systems>
---
 classes/image_types_esp.bbclass | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 classes/image_types_esp.bbclass

diff --git a/classes/image_types_esp.bbclass b/classes/image_types_esp.bbclass
new file mode 100644
index 00000000..df389fa5
--- /dev/null
+++ b/classes/image_types_esp.bbclass
@@ -0,0 +1,26 @@
+require conf/image-uefi.conf
+
+oe_mkespfs() {
+	fstype="$1"
+	extra_imagecmd=""
+
+	if [ $# -gt 1 ]; then
+		shift
+		extra_imagecmd=$@
+	fi
+
+	# Create a sparse image block.  ESP partition must be 64K blocks.
+	bbdebug 1 Executing "dd if=/dev/zero of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype seek=65536 count=0 bs=1024"
+	dd if=/dev/zero of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype seek=65536 count=0 bs=1024
+	bbdebug 1 "Actual Rootfs size:  `du -s ${IMAGE_ROOTFS}`"
+	bbdebug 1 "Actual Partion size: `stat -c '%s' ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype`"
+	bbdebug 1 Executing "mkfs.vfat -F 32 -I $extra_imagecmd ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype "
+	mkfs.vfat -F 32 -I $extra_imagecmd ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype
+	mcopy -i ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype -s ${IMAGE_ROOTFS}/* ::/
+	# Error codes 0-3 indicate successfull operation of fsck (no errors or errors corrected)
+	fsck.vfat -pvfV ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype
+}
+do_image_esp[depends] += "dosfstools-native:do_populate_sysroot mtools-native:do_populate_sysroot"
+IMAGE_TYPES += "esp"
+IMAGE_CMD:esp = "oe_mkespfs esp ${EXTRA_IMAGECMD}"
+EXTRA_IMAGECMD:esp ?= ""