avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/test/image/test-imagetools.sh

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+#!/bin/bash
+#
+# Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
+#
+# Sanity check for mkimage and dumpimage tools
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+# To run this:
+#
+# make O=sandbox sandbox_config
+# make O=sandbox
+# ./test/image/test-imagetools.sh
+
+BASEDIR=sandbox
+SRCDIR=${BASEDIR}/boot
+IMAGE_NAME="v1.0-test"
+IMAGE_MULTI=linux.img
+IMAGE_FIT_ITS=linux.its
+IMAGE_FIT_ITB=linux.itb
+DATAFILE0=vmlinuz
+DATAFILE1=initrd.img
+DATAFILE2=System.map
+DATAFILES="${DATAFILE0} ${DATAFILE1} ${DATAFILE2}"
+TEST_OUT=test_output
+MKIMAGE=${BASEDIR}/tools/mkimage
+DUMPIMAGE=${BASEDIR}/tools/dumpimage
+MKIMAGE_LIST=mkimage.list
+DUMPIMAGE_LIST=dumpimage.list
+
+# Remove all the files we created
+cleanup()
+{
+	local file
+
+	for file in ${DATAFILES}; do
+		rm -f ${file} ${SRCDIR}/${file}
+	done
+	rm -f ${IMAGE_MULTI}
+	rm -f ${DUMPIMAGE_LIST}
+	rm -f ${MKIMAGE_LIST}
+	rm -f ${TEST_OUT}
+	rmdir ${SRCDIR}
+}
+
+# Check that two files are the same
+assert_equal()
+{
+	if ! diff -u $1 $2; then
+		echo "Failed."
+		cleanup
+		exit 1
+	fi
+}
+
+# Create some test files
+create_files()
+{
+	local file
+
+	mkdir -p ${SRCDIR}
+	for file in ${DATAFILES}; do
+		head -c $RANDOM /dev/urandom >${SRCDIR}/${file}
+	done
+}
+
+# Run a command, echoing it first
+do_cmd()
+{
+	local cmd="$@"
+
+	echo "# ${cmd}"
+	${cmd} 2>&1
+}
+
+# Run a command, redirecting output
+# Args:
+#    redirect_file
+#    command...
+do_cmd_redir()
+{
+	local redir="$1"
+	shift
+	local cmd="$@"
+
+	echo "# ${cmd}"
+	${cmd} >${redir}
+}
+
+# Write files into an multi-file image
+create_multi_image()
+{
+	local files="${SRCDIR}/${DATAFILE0}:${SRCDIR}/${DATAFILE1}"
+	files+=":${SRCDIR}/${DATAFILE2}"
+
+	echo -e "\nBuilding multi-file image..."
+	do_cmd ${MKIMAGE} -A x86 -O linux -T multi -n \"${IMAGE_NAME}\" \
+		-d ${files} ${IMAGE_MULTI}
+	echo "done."
+}
+
+# Extract files from an multi-file image
+extract_multi_image()
+{
+	echo -e "\nExtracting multi-file image contents..."
+	do_cmd ${DUMPIMAGE} -T multi -i ${IMAGE_MULTI} -p 0 ${DATAFILE0}
+	do_cmd ${DUMPIMAGE} -T multi -i ${IMAGE_MULTI} -p 1 ${DATAFILE1}
+	do_cmd ${DUMPIMAGE} -T multi -i ${IMAGE_MULTI} -p 2 ${DATAFILE2}
+	do_cmd ${DUMPIMAGE} -T multi -i ${IMAGE_MULTI} -p 2 ${DATAFILE2} -o ${TEST_OUT}
+	echo "done."
+}
+
+# Write files into a FIT image
+create_fit_image()
+{
+	echo " \
+	/dts-v1/; \
+	/ { \
+	    description = \"FIT image\"; \
+	    #address-cells = <1>; \
+	\
+	    images { \
+	        kernel@1 { \
+	            description = \"kernel\"; \
+	            data = /incbin/(\"${DATAFILE0}\"); \
+	            type = \"kernel\"; \
+	            arch = \"sandbox\"; \
+	            os = \"linux\"; \
+	            compression = \"gzip\"; \
+	            load = <0x40000>; \
+	            entry = <0x8>; \
+	        }; \
+	        ramdisk@1 { \
+	            description = \"filesystem\"; \
+	            data = /incbin/(\"${DATAFILE1}\"); \
+	            type = \"ramdisk\"; \
+	            arch = \"sandbox\"; \
+	            os = \"linux\"; \
+	            compression = \"none\"; \
+	            load = <0x80000>; \
+	            entry = <0x16>; \
+	        }; \
+	        fdt@1 { \
+	            description = \"device tree\"; \
+	            data = /incbin/(\"${DATAFILE2}\"); \
+	            type = \"flat_dt\"; \
+	            arch = \"sandbox\"; \
+	            compression = \"none\"; \
+	        }; \
+	    }; \
+	    configurations { \
+	        default = \"conf@1\"; \
+	        conf@1 { \
+	            kernel = \"kernel@1\"; \
+	            fdt = \"fdt@1\"; \
+	        }; \
+	    }; \
+	}; \
+	" > ${IMAGE_FIT_ITS}
+
+	echo -e "\nBuilding FIT image..."
+	do_cmd ${MKIMAGE} -f ${IMAGE_FIT_ITS} ${IMAGE_FIT_ITB}
+	echo "done."
+}
+
+# Extract files from a FIT image
+extract_fit_image()
+{
+	echo -e "\nExtracting FIT image contents..."
+	do_cmd ${DUMPIMAGE} -T flat_dt -i ${IMAGE_FIT_ITB} -p 0 ${DATAFILE0}
+	do_cmd ${DUMPIMAGE} -T flat_dt -i ${IMAGE_FIT_ITB} -p 1 ${DATAFILE1}
+	do_cmd ${DUMPIMAGE} -T flat_dt -i ${IMAGE_FIT_ITB} -p 2 ${DATAFILE2}
+	do_cmd ${DUMPIMAGE} -T flat_dt -i ${IMAGE_FIT_ITB} -p 2 ${DATAFILE2} -o ${TEST_OUT}
+	echo "done."
+}
+
+# List the contents of a file
+# Args:
+#    image filename
+list_image()
+{
+	local image="$1"
+
+	echo -e "\nListing image contents..."
+	do_cmd_redir ${MKIMAGE_LIST} ${MKIMAGE} -l ${image}
+	do_cmd_redir ${DUMPIMAGE_LIST} ${DUMPIMAGE} -l ${image}
+	echo "done."
+}
+
+main()
+{
+	local file
+
+	create_files
+
+	# Compress and extract multi-file images, compare the result
+	create_multi_image
+	extract_multi_image
+	for file in ${DATAFILES}; do
+		assert_equal ${file} ${SRCDIR}/${file}
+	done
+	assert_equal ${TEST_OUT} ${DATAFILE2}
+
+	# List contents of multi-file image and compares output from tools
+	list_image ${IMAGE_MULTI}
+	assert_equal ${DUMPIMAGE_LIST} ${MKIMAGE_LIST}
+
+	# Compress and extract FIT images, compare the result
+	create_fit_image
+	extract_fit_image
+	for file in ${DATAFILES}; do
+		assert_equal ${file} ${SRCDIR}/${file}
+	done
+	assert_equal ${TEST_OUT} ${DATAFILE2}
+
+	# List contents of FIT image and compares output from tools
+	list_image ${IMAGE_FIT_ITB}
+	assert_equal ${DUMPIMAGE_LIST} ${MKIMAGE_LIST}
+
+	# Remove files created
+	cleanup
+
+	echo "Tests passed."
+}
+
+main