bitbake.conf: add XZ_INTEGRITY_CHECK and LZMA_COMPRESSION_LEVEL variables

Linux kernel has support for XZ Embedded and it has limited support
for integrity checking. Currently only 'crc32' and 'none' are
supported.

This patch allows change it and defaults it to 'crc32' for safeness.

The LZMA_COMPRESSION_LEVEL variable has been add for cpio.lzma image
format since the XZ equivalent variable has already available and in
use. It defaults for best compression ratio.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

1 files changed, 7 insertions, 3 deletions

diff --git a/conf/bitbake.conf b/conf/bitbake.conf
index 5d638dfbe1..903b9b7c71 100644
--- a/conf/bitbake.conf
+++ b/conf/bitbake.conf
@@ -149,6 +149,10 @@ QEMU_OPTIONS_armv7a   = "-cpu cortex-a8"
 
 # default compression levels
 XZ_COMPRESSION_LEVEL ?= "-e -9"
+LZMA_COMPRESSION_LEVEL ?= "-e -9"
+
+# default integrity check
+XZ_INTEGRITY_CHECK ?= "crc32"
 
 ##################################################################
 # Date/time variables.
@@ -386,7 +390,7 @@ IMAGE_CMD_ext3.bz2 = "install -d ${DEPLOY_DIR_IMAGE}/tmp.bz2 ; genext2fs -i 4096
 IMAGE_CMD_ext4 = "genext2fs -i 4096 -b ${ROOTFS_SIZE} -d ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4 ${EXTRA_IMAGECMD}; tune2fs -O extents,uninit_bg,dir_index,has_journal ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4; set +e; e2fsck -yfDC0 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4;chk=$?; set -e; case $chk in 0|1|2);;*)exit $chk;;esac;"
 IMAGE_CMD_ext4.gz = "install -d ${DEPLOY_DIR_IMAGE}/tmp.gz ; genext2fs -i 4096 -b ${ROOTFS_SIZE} -d ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext4 ${EXTRA_IMAGECMD}; tune2fs -O extents,uninit_bg,dir_index,has_journal ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext4; set +e;e2fsck -yfDC0 ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext4;chk=$?; set -e; case $chk in 0|1|2);;*)exit $chk;;esac; gzip -f -9 ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext4; mv ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext4.gz ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4.gz"
 IMAGE_CMD_ext4.bz2 = "install -d ${DEPLOY_DIR_IMAGE}/tmp.bz2 ; genext2fs -i 4096 -b ${ROOTFS_SIZE} -d ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/tmp.bz2/${IMAGE_NAME}.rootfs.ext4 ${EXTRA_IMAGECMD}; tune2fs -O extents,uninit_bg,dir_index,has_journal ${DEPLOY_DIR_IMAGE}/tmp.bz2/${IMAGE_NAME}.rootfs.ext4; set +e; e2fsck -yfDC0 ${DEPLOY_DIR_IMAGE}/tmp.bz2/${IMAGE_NAME}.rootfs.ext4;chk=$?; set -e; case $chk in 0|1|2);;*)exit $chk;;esac; bzip2 -f -9 ${DEPLOY_DIR_IMAGE}/tmp.bz2/${IMAGE_NAME}.rootfs.ext4; mv ${DEPLOY_DIR_IMAGE}/tmp.bz2/${IMAGE_NAME}.rootfs.ext4.bz2 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4.bz2"
-IMAGE_CMD_ext4.xz = "install -d ${DEPLOY_DIR_IMAGE}/tmp.xz; genext2fs -i 4096 -b ${ROOTFS_SIZE} -d ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4 ${EXTRA_IMAGECMD}; tune2fs -O extents,uninit_bg,dir_index,has_journal ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4; set +e; e2fsck -yfDC0 ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4;chk=$?; set -e; case $chk in 0|1|2);;*)exit $chk;;esac; xz -c ${XZ_COMPRESSION_LEVEL} ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4 > ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4.xz ; rm -f ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4 ; rmdir ${DEPLOY_DIR_IMAGE}/tmp.xz"
+IMAGE_CMD_ext4.xz = "install -d ${DEPLOY_DIR_IMAGE}/tmp.xz; genext2fs -i 4096 -b ${ROOTFS_SIZE} -d ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4 ${EXTRA_IMAGECMD}; tune2fs -O extents,uninit_bg,dir_index,has_journal ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4; set +e; e2fsck -yfDC0 ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4;chk=$?; set -e; case $chk in 0|1|2);;*)exit $chk;;esac; xz -c ${XZ_COMPRESSION_LEVEL} --check=${XZ_INTEGRITY_CHECK} ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4 > ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4.xz ; rm -f ${DEPLOY_DIR_IMAGE}/tmp.xz/${IMAGE_NAME}.rootfs.ext4 ; rmdir ${DEPLOY_DIR_IMAGE}/tmp.xz"
 
 IMAGE_CMD_squashfs = "mksquashfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.squashfs ${EXTRA_IMAGECMD} -noappend"
 IMAGE_CMD_squashfs-lzma = "mksquashfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.squashfs-lzma ${EXTRA_IMAGECMD} -noappend -comp lzma"
@@ -396,9 +400,9 @@ IMAGE_CMD_tar.bz2 = "cd ${IMAGE_ROOTFS} && tar -jcvf ${DEPLOY_DIR_IMAGE}/${IMAGE
 IMAGE_CMD_tar.xz = "cd ${IMAGE_ROOTFS} && tar --xz -cvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.xz ."
 IMAGE_CMD_cpio = "cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio) ${EXTRA_IMAGECMD}"
 IMAGE_CMD_cpio.gz = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | gzip -c -9 >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.gz) ${EXTRA_IMAGECMD}"
-IMAGE_CMD_cpio.xz = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | xz -c ${XZ_COMPRESSION_LEVEL} > ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.xz) ${EXTRA_IMAGECMD}"
+IMAGE_CMD_cpio.xz = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | xz -c ${XZ_COMPRESSION_LEVEL} --check=${XZ_INTEGRITY_CHECK} > ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.xz) ${EXTRA_IMAGECMD}"
 IMAGE_CMD_cpio.gz.u-boot = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | gzip -c -9 >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.gz) ${EXTRA_IMAGECMD}; mkimage -A ${UBOOT_ARCH} -O linux -T ramdisk -C gzip -n ${IMAGE_NAME} -d ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.gz ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.gz.u-boot"
-IMAGE_CMD_cpio.lzma = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | lzma -c -9 >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.lzma) ${EXTRA_IMAGECMD}"
+IMAGE_CMD_cpio.lzma = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | lzma -c ${LZMA_COMPRESSION_LEVEL} >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.lzma) ${EXTRA_IMAGECMD}"
 IMAGE_CMD_ubi = "echo \[ubifs\] > ubinize.cfg ; echo mode=ubi >> ubinize.cfg ; echo image=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ubifs >> ubinize.cfg ; echo vol_id=0 >> ubinize.cfg ; echo vol_type=dynamic >> ubinize.cfg ; echo vol_name=${UBI_VOLNAME} >> ubinize.cfg ; echo vol_flags=autoresize >> ubinize.cfg;mkfs.ubifs -r ${IMAGE_ROOTFS} -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ubifs ${MKUBIFS_ARGS} && ubinize -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ubi ${UBINIZE_ARGS} ubinize.cfg"
 IMAGE_CMD_ubifs = "mkfs.ubifs -r ${IMAGE_ROOTFS} -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.ubifs.img ${MKUBIFS_ARGS}"