From fd1517e2b51a170f2427122c6b95396db251d827 Mon Sep 17 00:00:00 2001
From: Richard Purdie <richard.purdie@linuxfoundation.org>
Date: Wed, 10 Aug 2022 14:35:29 +0100
Subject: classes: Update classes to match new bitbake class scope
 functionality

Move classes to classes-global or classes-recipe as appropriate to take
advantage of new bitbake functionality to check class scope/usage.

(From OE-Core rev: f5c128008365e141082c129417eb72d2751e8045)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 meta/classes-recipe/kernel-uboot.bbclass | 49 ++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 meta/classes-recipe/kernel-uboot.bbclass

(limited to 'meta/classes-recipe/kernel-uboot.bbclass')

diff --git a/meta/classes-recipe/kernel-uboot.bbclass b/meta/classes-recipe/kernel-uboot.bbclass
new file mode 100644
index 0000000000..4aab02671e
--- /dev/null
+++ b/meta/classes-recipe/kernel-uboot.bbclass
@@ -0,0 +1,49 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+# fitImage kernel compression algorithm
+FIT_KERNEL_COMP_ALG ?= "gzip"
+FIT_KERNEL_COMP_ALG_EXTENSION ?= ".gz"
+
+# Kernel image type passed to mkimage (i.e. kernel kernel_noload...)
+UBOOT_MKIMAGE_KERNEL_TYPE ?= "kernel"
+
+uboot_prep_kimage() {
+	if [ -e arch/${ARCH}/boot/compressed/vmlinux ]; then
+		vmlinux_path="arch/${ARCH}/boot/compressed/vmlinux"
+		linux_suffix=""
+		linux_comp="none"
+	elif [ -e arch/${ARCH}/boot/vmlinuz.bin ]; then
+		rm -f linux.bin
+		cp -l arch/${ARCH}/boot/vmlinuz.bin linux.bin
+		vmlinux_path=""
+		linux_suffix=""
+		linux_comp="none"
+	else
+		vmlinux_path="vmlinux"
+		# Use vmlinux.initramfs for linux.bin when INITRAMFS_IMAGE_BUNDLE set
+		# As per the implementation in kernel.bbclass.
+		# See do_bundle_initramfs function
+		if [ "${INITRAMFS_IMAGE_BUNDLE}" = "1" ] && [ -e vmlinux.initramfs ]; then
+			vmlinux_path="vmlinux.initramfs"
+		fi
+		linux_suffix="${FIT_KERNEL_COMP_ALG_EXTENSION}"
+		linux_comp="${FIT_KERNEL_COMP_ALG}"
+	fi
+
+	[ -n "${vmlinux_path}" ] && ${OBJCOPY} -O binary -R .note -R .comment -S "${vmlinux_path}" linux.bin
+
+	if [ "${linux_comp}" != "none" ] ; then
+		if [ "${linux_comp}" = "gzip" ] ; then
+			gzip -9 linux.bin
+		elif [ "${linux_comp}" = "lzo" ] ; then
+			lzop -9 linux.bin
+		fi
+		mv -f "linux.bin${linux_suffix}" linux.bin
+	fi
+
+	echo "${linux_comp}"
+}
-- 
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