[OE-core] [PATCH v2 1/2] kernel: Add KERNEL_IMAGETYPES to build multi types kernel at one time

He Zhe zhe.he at windriver.com
Mon Feb 22 08:43:37 UTC 2016



On 02/19/2016 11:46 PM, Bruce Ashfield wrote:
>
>
> On Fri, Feb 19, 2016 at 4:56 AM, <zhe.he at windriver.com <mailto:zhe.he at windriver.com>>wrote:
>
>     From: He Zhe <zhe.he at windriver.com <mailto:zhe.he at windriver.com>>
>
>     Add KERNEL_IMAGETYPES to support building packaging and installing
>     multi types of kernel images, such as zImage uImage, at one time.
>
>     KERNEL_IMAGETYPE works as before. All KERNEL_ALT_IMAGETYPEs are
>     replaced by KERNEL_IMAGETYPES.
>
>
>  
> I see that you have updated layers/configs with the new variable, but obviously you can't see all the 
> layers that may be using that old variable.
>
> Isn't it possible to have a python routine that detects the old ALT_IMAGETYPE variable and
> assigns it to the new one (if it isn't already set) ? Sort of like how distro features/features backfill
> work ?
>

Thanks for careful review.

OK. I'll try to add such function.

>
>     Fixes [YOCTO #6945].
>
>     Signed-off-by: He Zhe <zhe.he at windriver.com <mailto:zhe.he at windriver.com>>
>     ---
>      documentation/ref-manual/ref-variables.xml         |  10 +-
>      meta-yocto-bsp/conf/machine/edgerouter.conf        |   2 +-
>      meta/classes/kernel-fitimage.bbclass               |  20 +--
>      meta/classes/kernel-grub.bbclass                   |  44 ++++--
>      meta/classes/kernel-uimage.bbclass                 |  22 +--
>      meta/classes/kernel.bbclass                        | 171 +++++++++++++++------
>      meta/conf/documentation.conf                       |   1 +
>      meta/conf/machine/qemumips.conf                    |   2 +-
>      meta/conf/machine/qemumips64.conf                  |   2 +-
>      meta/recipes-kernel/linux/linux-dtb.inc            |  49 +++---
>      .../target/arch/mips/conf/machine/machine.conf     |   2 +-
>      .../target/arch/mips64/conf/machine/machine.conf   |   2 +-
>      .../target/arch/qemu/conf/machine/machine.conf     |   2 +-
>      13 files changed, 214 insertions(+), 115 deletions(-)
>
>     diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
>     index a76a8c2..a8e4fd8 100644
>     --- a/documentation/ref-manual/ref-variables.xml
>     +++ b/documentation/ref-manual/ref-variables.xml
>     @@ -6417,14 +6417,14 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
>                  </glossdef>
>              </glossentry>
>
>     -        <glossentry id='var-KERNEL_ALT_IMAGETYPE'><glossterm>KERNEL_ALT_IMAGETYPE</glossterm>
>     +        <glossentry id='var-KERNEL_IMAGETYPES'><glossterm>KERNEL_IMAGETYPES</glossterm>
>                  <info>
>     -                KERNEL_ALT_IMAGETYPE[doc] = "Specifies an alternate kernel image type for creation."
>     +                KERNEL_IMAGETYPES[doc] = "Specifies alternate kernel image types for creation."
>                  </info>
>                  <glossdef>
>                      <para role="glossdeffirst">
>      <!--                <para role="glossdeffirst"><imagedata fileref="figures/define-generic.png" /> -->
>     -                    Specifies an alternate kernel image type for creation in
>     +                    Specifies alternate kernel image types for creation in
>                          addition to the kernel image type specified using the
>                          <link linkend='var-KERNEL_IMAGETYPE'><filename>KERNEL_IMAGETYPE</filename></link>
>                          variable.
>     @@ -6612,8 +6612,8 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
>                      </para>
>
>                      <para>
>     -                    If you want to build an alternate kernel image type, use the
>     -                    <link linkend='var-KERNEL_ALT_IMAGETYPE'><filename>KERNEL_ALT_IMAGETYPE</filename></link>
>     +                    If you want to build alternate kernel image types, use the
>     +                    <link linkend='var-KERNEL_IMAGETYPES'><filename>KERNEL_IMAGETYPES</filename></link>
>                          variable.
>                      </para>
>                  </glossdef>
>     diff --git a/meta-yocto-bsp/conf/machine/edgerouter.conf b/meta-yocto-bsp/conf/machine/edgerouter.conf
>     index 476e690..affd568 100644
>     --- a/meta-yocto-bsp/conf/machine/edgerouter.conf
>     +++ b/meta-yocto-bsp/conf/machine/edgerouter.conf
>     @@ -7,7 +7,7 @@ require conf/machine/include/tune-mips64.inc
>      MACHINE_FEATURES = "pci ext2 ext3 serial"
>
>      KERNEL_IMAGETYPE = "vmlinux"
>     -KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
>     +KERNEL_IMAGETYPES = "vmlinux.bin"
>
>
> This now reads a bit ... odd (for back of a better description). I'm concerned that it will cause
> confusion, there are two variables:
>
> KERNEL_IMAGETYPE and KERNEL_IMAGETYPES ..
>
> They are very close in name, and just reading the variable doesn't really tell us why
> we'd set one and not the other. The old "ALT" made it more obvious.
>

But changing original KERNEL_ALT_IMAGETYPE to a list or using KERNEL_ALT_IMAGETYPES
in addition to KERNEL_ALT_IMAGETYPE also seems not very clear. Below is the previous
talk with Richard Purdie and Christopher Larson.

>>>>> Question, why not add KERNEL_IMAGETYPES, and make KERNEL_IMAGETYPE equal to your new KERNEL_IMAGETYPE_0?(Christopher)
>>>> Adding a new KERNEL_IMAGETYPES will also work. But it should be better(me)
>>>> not to change the name of KERNEL_IMAGETYPE, so that those who have
>>>> used it don't have to change their code.
>>>>
>>>> Thank you for reviewing.
>>> I have to agree with Chris here, keeping KERNEL_IMAGETYPE as used today(Richard)
>>> and equivalent to KERNEL_IMAGETYPE_0 and adding KERNEL_IMAGETYPES does
>>> seem like a cleaner way to implement this.
>>
>> But it might mean we are going to check both KERNEL_IMAGETYPE and KERNEL_IMAGETYPES(me)
>> to generate final image type list. Is that OK?
>
>Well, in some places you will use one and in some places you'll use the(Richard)
>other, that is unavoidable.
>
>I much prefer "KERNEL_IMAGETYPE and KERNEL_IMAGETYPES" to
>"KERNEL_IMAGETYPE_0 and KERNEL_IMAGETYPE" as variable names though.
>
>Cheers,

> But from the patch, KERNEL_IMAGETYPE isn't used, so does it have to be set at
> all in these .conf files ? .. or maybe I missed where it is still used other than for
> compatibility.
>  

Not every KERNEL_IMAGETYPE should be replaced by KERNEL_IMAGETYPES. Only one
type of kernel image is necessary for below cases.Right?

Yes, more explanations should be added to commit message and code comments.

1) boot fs image
meta/classes/bootimg.bbclass:50:KERNEL_IMAGETYPE ??= "bzImage"
meta/classes/bootimg.bbclass:72:        install -m 0644 ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} ${DEST}/vmlinuz
meta/classes/image_types.bbclass:109:ELF_KERNEL ?= "${STAGING_DIR_HOST}/usr/src/kernel/${KERNEL_IMAGETYPE}"

2) test fs image
meta/lib/oeqa/controllers/masterimage.py:55:        self.kernel = os.path.join(d.getVar("DEPLOY_DIR_IMAGE", True), d.getVar("KERNEL_IMAGETYPE", False) + '-' + d.getVar('MACHINE', False) + '.bin')
meta/lib/oeqa/targetcontrol.py:126:        self.kernel = os.path.join(d.getVar("DEPLOY_DIR_IMAGE", True), d.getVar("KERNEL_IMAGETYPE", False) + '-' + d.getVar('MACHINE', False) + '.bin')


>      KERNEL_IMAGE_STRIP_EXTRA_SECTIONS  = ".comment"
>
>      PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
>     diff --git a/meta/classes/kernel-fitimage.bbclass b/meta/classes/kernel-fitimage.bbclass
>     index f1b409c..51df19d 100644
>     --- a/meta/classes/kernel-fitimage.bbclass
>     +++ b/meta/classes/kernel-fitimage.bbclass
>     @@ -1,8 +1,8 @@
>      inherit kernel-uboot
>
>      python __anonymous () {
>     -    kerneltype = d.getVar('KERNEL_IMAGETYPE', True)
>     -    if kerneltype == 'fitImage':
>     +    kerneltypes = d.getVar('KERNEL_IMAGETYPES', True) or ""
>     +    if 'fitImage' in kerneltypes.split():
>              depends = d.getVar("DEPENDS", True)
>              depends = "%s u-boot-mkimage-native dtc-native" % depends
>              d.setVar("DEPENDS", depends)
>     @@ -10,7 +10,9 @@ python __anonymous () {
>             # Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
>             # to kernel.bbclass . We have to override it, since we pack zImage
>             # (at least for now) into the fitImage .
>     -        d.setVar("KERNEL_IMAGETYPE_FOR_MAKE", "zImage")
>     +        typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE", True) or ""
>     +        if 'fitImage' in typeformake.split():
>     +            d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('fitImage', 'zImage'))
>
>              image = d.getVar('INITRAMFS_IMAGE', True)
>              if image:
>     @@ -154,7 +156,7 @@ EOF
>      }
>
>      do_assemble_fitimage() {
>     -       if test "x${KERNEL_IMAGETYPE}" = "xfitImage" ; then
>     +       if echo ${KERNEL_IMAGETYPES} | grep -Pq "\bfitImage\b"; then
>
>
> Not that it really matters, but grep -w would work here as well, and might read bit simpler.

OK. I'll replace it with "-w"

>  
>
>                     kernelcount=1
>                     dtbcount=""
>                     rm -f fit-image.its
>     @@ -217,14 +219,14 @@ addtask assemble_fitimage before do_install after do_compile
>
>      kernel_do_deploy_append() {
>             # Update deploy directory
>     -       if test "x${KERNEL_IMAGETYPE}" = "xfitImage" ; then
>     +       if echo ${KERNEL_IMAGETYPES} | grep -Pq "\bfitImage\b"; then
>                     cd ${B}
>                     echo "Copying fit-image.its source file..."
>     -               its_base_name="${KERNEL_IMAGETYPE}-its-${PV}-${PR}-${MACHINE}-${DATETIME}"
>     -               its_symlink_name=${KERNEL_IMAGETYPE}-its-${MACHINE}
>     +               its_base_name="fitImage-its-${PV}-${PR}-${MACHINE}-${DATETIME}"
>     +               its_symlink_name=fitImage-its-${MACHINE}
>                     install -m 0644 fit-image.its ${DEPLOYDIR}/${its_base_name}.its
>     -               linux_bin_base_name="${KERNEL_IMAGETYPE}-linux.bin-${PV}-${PR}-${MACHINE}-${DATETIME}"
>     -               linux_bin_symlink_name=${KERNEL_IMAGETYPE}-linux.bin-${MACHINE}
>     +               linux_bin_base_name="fitImage-linux.bin-${PV}-${PR}-${MACHINE}-${DATETIME}"
>     +               linux_bin_symlink_name=fitImage-linux.bin-${MACHINE}
>                     install -m 0644 linux.bin ${DEPLOYDIR}/${linux_bin_base_name}.bin
>
>                     cd ${DEPLOYDIR}
>     diff --git a/meta/classes/kernel-grub.bbclass b/meta/classes/kernel-grub.bbclass
>     index a63f482..f7dcc07 100644
>     --- a/meta/classes/kernel-grub.bbclass
>     +++ b/meta/classes/kernel-grub.bbclass
>     @@ -10,41 +10,44 @@
>      #   updates the new kernel as the boot priority.
>      #
>
>     -pkg_preinst_kernel-image_append () {
>     +python __anonymous () {
>
>
> Maybe it is just the patch context making me misread this, but can you elaborate on
> what is changing here ?
>

Here I change the two variables, pkg_preinst_kernel-image_append and
pkg_postinst_kernel-image_prepend to two strings, and change all "${KERNEL_IMAGETYPE}"
in the strings to "KERNEL_IMAGETYPE" to avoid being expanded in parsing time. So that I can
replace KERNEL_IMAGETYPEs to every single image type in the following loops, in which the
two original variables' name are constructed and their values are set.

According to bitbake user manual, __anonymous functions are executed during parsing. It
should be OK for the following references. I've verified this by building an image with
kernel-grub.bbclass.

> Is it the old preinst is being replaced by anonymous python that generates the preinst as
> a string, and that this injected into the package via the python ? Are we guaranteed
> to run the anonymous python at the right time ? .. I've been burned by that before, so
> I wanted to check that it has been considered.
>  
>
>     +    import re
>     +
>     +    preinst = '''
>             # Parsing confliction
>             [ -f "$D/boot/grub/menu.list" ] && grubcfg="$D/boot/grub/menu.list"
>             [ -f "$D/boot/grub/grub.cfg" ] && grubcfg="$D/boot/grub/grub.cfg"
>             if [ -n "$grubcfg" ]; then
>                     # Dereference symlink to avoid confliction with new kernel name.
>     -               if grep -q "/${KERNEL_IMAGETYPE} \+root=" $grubcfg; then
>     -                       if [ -L "$D/boot/${KERNEL_IMAGETYPE}" ]; then
>     -                               kimage=`realpath $D/boot/${KERNEL_IMAGETYPE} 2>/dev/null`
>     +               if grep -q "/KERNEL_IMAGETYPE \+root=" $grubcfg; then
>
>
> It's lines like these that made me ask my question above. This looks like its checking the
> grubcfg on disk. Is that same grep going to work in this anonymous python .. or maybe this
> isn't being run now, and only when the package is being installed ? I'm most likely missing
> something.

No, it's not running, it's in the middle of the string.

>  
>
>     +                       if [ -L "$D/boot/KERNEL_IMAGETYPE" ]; then
>     +                               kimage=`realpath $D/boot/KERNEL_IMAGETYPE 2>/dev/null`
>                                     if [ -f "$D$kimage" ]; then
>     -                                       sed -i "s:${KERNEL_IMAGETYPE} \+root=:${kimage##*/} root=:" $grubcfg
>     +                                       sed -i "s:KERNEL_IMAGETYPE \+root=:${kimage##*/} root=:" $grubcfg
>                                     fi
>                             fi
>                     fi
>
>                     # Rename old kernel if it conflicts with new kernel name.
>     -               if grep -q "/${KERNEL_IMAGETYPE}-${KERNEL_VERSION} \+root=" $grubcfg; then
>     -                       if [ -f "$D/boot/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}" ]; then
>     +               if grep -q "/KERNEL_IMAGETYPE-${KERNEL_VERSION} \+root=" $grubcfg; then
>     +                       if [ -f "$D/boot/KERNEL_IMAGETYPE-${KERNEL_VERSION}" ]; then
>                                     timestamp=`date +%s`
>     -                               kimage="$D/boot/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}-$timestamp-back"
>     -                               sed -i "s:${KERNEL_IMAGETYPE}-${KERNEL_VERSION} \+root=:${kimage##*/} root=:" $grubcfg
>     -                               mv "$D/boot/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}" "$kimage"
>     +                               kimage="$D/boot/KERNEL_IMAGETYPE-${KERNEL_VERSION}-$timestamp-back"
>     +                               sed -i "s:KERNEL_IMAGETYPE-${KERNEL_VERSION} \+root=:${kimage##*/} root=:" $grubcfg
>     +                               mv "$D/boot/KERNEL_IMAGETYPE-${KERNEL_VERSION}" "$kimage"
>                             fi
>                     fi
>             fi
>     -}
>     +'''
>
>     -pkg_postinst_kernel-image_prepend () {
>     +    postinst = '''
>             get_new_grub_cfg() {
>                     grubcfg="$1"
>                     old_image="$2"
>     -               title="Update ${KERNEL_IMAGETYPE}-${KERNEL_VERSION}-${PV}"
>     +               title="Update KERNEL_IMAGETYPE-${KERNEL_VERSION}-${PV}"
>                     if [ "${grubcfg##*/}" = "grub.cfg" ]; then
>                             rootfs=`grep " *linux \+[^ ]\+ \+root=" $grubcfg -m 1 | \
>     -                                sed "s#${old_image}#${old_image%/*}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}#"`
>     +                                sed "s#${old_image}#${old_image%/*}/KERNEL_IMAGETYPE-${KERNEL_VERSION}#"`
>
>                             echo "menuentry \"$title\" {"
>                             echo "    set root=(hd0,1)"
>     @@ -52,7 +55,7 @@ pkg_postinst_kernel-image_prepend () {
>                             echo "}"
>                     elif [ "${grubcfg##*/}" = "menu.list" ]; then
>                             rootfs=`grep "kernel \+[^ ]\+ \+root=" $grubcfg -m 1 | \
>     -                                sed "s#${old_image}#${old_image%/*}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}#"`
>     +                                sed "s#${old_image}#${old_image%/*}/KERNEL_IMAGETYPE-${KERNEL_VERSION}#"`
>
>                             echo "default 0"
>                             echo "timeout 30"
>     @@ -87,5 +90,16 @@ pkg_postinst_kernel-image_prepend () {
>                     mv $grubcfgtmp $grubcfg
>                     echo "Caution! Update kernel may affect kernel-module!"
>             fi
>     +'''
>     +
>     +    imagetypes = d.getVar('KERNEL_IMAGETYPES', True)
>     +    imagetypes = re.sub(r'\.gz$', '', imagetypes)
>     +
>     +    for type in imagetypes.split():
>     +        typelower = type.lower()
>     +        preinst_append = preinst.replace('KERNEL_IMAGETYPE', type)
>     +        postinst_prepend = postinst.replace('KERNEL_IMAGETYPE', type)
>     +        d.setVar('pkg_preinst_kernel-image-' + typelower + '_append', preinst_append)
>     +        d.setVar('pkg_postinst_kernel-image-' + typelower + '_prepend', postinst_prepend)
>      }
>
>     diff --git a/meta/classes/kernel-uimage.bbclass b/meta/classes/kernel-uimage.bbclass
>     index f73965b..a238ce4 100644
>     --- a/meta/classes/kernel-uimage.bbclass
>     +++ b/meta/classes/kernel-uimage.bbclass
>     @@ -1,23 +1,25 @@
>      inherit kernel-uboot
>
>      python __anonymous () {
>     -    kerneltype = d.getVar('KERNEL_IMAGETYPE', True)
>     -    if kerneltype == 'uImage':
>     +    if "uImage" in (d.getVar('KERNEL_IMAGETYPES', True) or "").split():
>              depends = d.getVar("DEPENDS", True)
>              depends = "%s u-boot-mkimage-native" % depends
>              d.setVar("DEPENDS", depends)
>
>     -       # Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
>     -       # to kernel.bbclass . We override the variable here, since we need
>     -       # to build uImage using the kernel build system if and only if
>     -       # KEEPUIMAGE == yes. Otherwise, we pack compressed vmlinux into
>     -       # the uImage .
>     -       if d.getVar("KEEPUIMAGE", True) != 'yes':
>     -            d.setVar("KERNEL_IMAGETYPE_FOR_MAKE", "zImage")
>     +        # Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
>     +        # to kernel.bbclass . We override the variable here, since we need
>     +        # to build uImage using the kernel build system if and only if
>     +        # KEEPUIMAGE == yes. Otherwise, we pack compressed vmlinux into
>     +        # the uImage .
>     +        if d.getVar("KEEPUIMAGE", True) != 'yes':
>     +            typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE", True) or ""
>     +            if "uImage" in typeformake.split():
>     +                typeformake.replace('uImage', 'zImage')
>     +            d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake)
>      }
>
>      do_uboot_mkimage() {
>     -       if test "x${KERNEL_IMAGETYPE}" = "xuImage" ; then
>     +       if echo "${KERNEL_IMAGETYPES}" | grep -Pq "\buImage\b"; then
>                     if test "x${KEEPUIMAGE}" != "xyes" ; then
>                             uboot_prep_kimage
>
>     diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
>     index c3eab50..6db2e2e 100644
>     --- a/meta/classes/kernel.bbclass
>     +++ b/meta/classes/kernel.bbclass
>     @@ -16,12 +16,48 @@ INITRAMFS_IMAGE ?= ""
>      INITRAMFS_TASK ?= ""
>      INITRAMFS_IMAGE_BUNDLE ?= ""
>
>     +# KERNEL_VERSION is extracted from source code. It is evaluated as
>     +# None for the first parsing, since the code has not been fetched.
>     +# After the code is fetched, it will be evaluated as real version
>     +# number and cause kernel to be rebuilt. To avoid this, make
>     +# KERNEL_VERSION_NAME and KERNEL_VERSION_PKG_NAME depend on
>     +# LINUX_VERSION which is a constant.
>     +KERNEL_VERSION_NAME = "${@d.getVar('KERNEL_VERSION', True) or ""}"
>     +KERNEL_VERSION_NAME[vardepvalue] = "${LINUX_VERSION}"
>     +KERNEL_VERSION_PKG_NAME = "${@legitimize_package_name(d.getVar('KERNEL_VERSION', True))}"
>     +KERNEL_VERSION_PKG_NAME[vardepvalue] = "${LINUX_VERSION}"
>     +
>      python __anonymous () {
>          import re
>
>     -    kerneltype = d.getVar('KERNEL_IMAGETYPE', True)
>     +    type = d.getVar('KERNEL_IMAGETYPE', True) or ""
>
>
> Aha. Here is that use of KERNEL_IMAGETYPE. Like I mentioned for the alt image type, can't
> this existing variable be checked, and then added to KERNEL_IMAGE_TYPES in some
> python code ? That would simplify the code here, and also not require the two variables to 
> be kept around.

See above for explanation for KERNEL_IMAGETYPES.

>  
>
>     +    types = d.getVar('KERNEL_IMAGETYPES', True) or ""
>     +    if type not in types.split():
>     +        types = (type + ' ' + types).strip()
>     +        d.setVar('KERNEL_IMAGETYPES', types)
>     +    typeformake = re.sub(r'\.gz', '', types)
>     +    d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake)
>     +
>     +    for type in typeformake.split():
>     +        typelower = type.lower()
>     +
>     +        d.appendVar('PACKAGES', ' ' + 'kernel-image-' + typelower)
>     +
>     +        d.setVar('FILES_kernel-image-' + typelower, '/boot/' + type + '*')
>     +
>     +        d.appendVar('RDEPENDS_kernel-image', ' ' + 'kernel-image-' + typelower)
>     +
>     +        d.setVar('PKG_kernel-image-' + typelower, 'kernel-image-' + typelower + '-${KERNEL_VERSION_PKG_NAME}')
>     +
>     +        d.setVar('ALLOW_EMPTY_kernel-image-' + typelower, '1')
>
>     -    d.setVar("KERNEL_IMAGETYPE_FOR_MAKE", re.sub(r'\.gz$', '', kerneltype))
>     +        imagedest = d.getVar('KERNEL_IMAGEDEST', True)
>     +        priority = d.getVar('KERNEL_PRIORITY', True)
>     +        postinst = '#!/bin/sh\n' + 'update-alternatives --install /' + imagedest + '/' + type + ' ' + type + ' ' + '/' + imagedest + '/' + type + '-${KERNEL_VERSION_NAME} ' + priority + ' || true' + '\n'
>     +        d.setVar('pkg_postinst_kernel-image-' + typelower, postinst)
>     +
>     +        postrm = '#!/bin/sh\n' + 'update-alternatives --remove' + ' ' + type + ' ' + type + '-${KERNEL_VERSION_NAME} || true' + '\n'
>     +        d.setVar('pkg_postrm_kernel-image-' + typelower, postrm)
>
>          image = d.getVar('INITRAMFS_IMAGE', True)
>          if image:
>     @@ -92,8 +128,8 @@ KERNEL_PRIORITY ?= "${@int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.
>
>      KERNEL_RELEASE ?= "${KERNEL_VERSION}"
>
>     -# Where built kernel lies in the kernel tree
>     -KERNEL_OUTPUT ?= "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}"
>     +# The directory where built kernel lies in the kernel tree
>     +KERNEL_OUTPUT_DIR ?= "arch/${ARCH}/boot"
>      KERNEL_IMAGEDEST = "boot"
>
>      #
>     @@ -119,8 +155,6 @@ KERNEL_EXTRA_ARGS ?= ""
>      # We don't want to override kernel Makefile variables from the environment
>      EXTRA_OEMAKE = ""
>
>     -KERNEL_ALT_IMAGETYPE ??= ""
>     -
>      # Define where the kernel headers are installed on the target as well as where
>      # they are staged.
>      KERNEL_SRC_PATH = "/usr/src/kernel"
>     @@ -166,23 +200,48 @@ copy_initramfs() {
>             echo "Finished copy of initramfs into ./usr"
>      }
>
>     -INITRAMFS_BASE_NAME = "${KERNEL_IMAGETYPE}-initramfs-${PV}-${PR}-${MACHINE}-${DATETIME}"
>     +INITRAMFS_BASE_NAME = "initramfs-${PV}-${PR}-${MACHINE}-${DATETIME}"
>
>      INITRAMFS_BASE_NAME[vardepsexclude] = "DATETIME"
>      do_bundle_initramfs () {
>             if [ ! -z "${INITRAMFS_IMAGE}" -a x"${INITRAMFS_IMAGE_BUNDLE}" = x1 ]; then
>                     echo "Creating a kernel image with a bundled initramfs..."
>                     copy_initramfs
>     -               if [ -e ${KERNEL_OUTPUT} ] ; then
>     -                       mv -f ${KERNEL_OUTPUT} ${KERNEL_OUTPUT}.bak
>     -               fi
>     +               # Backuping kernel image relies on its type(regular file or symbolic link)
>
>
> s/Backuping/Backing up/

I'll correct it.

>  
>
>     +               tmp_path=""
>     +               for type in ${KERNEL_IMAGETYPES} ; do
>     +                       if [ -h ${KERNEL_OUTPUT_DIR}/$type ] ; then
>     +                               linkpath=`readlink -n ${KERNEL_OUTPUT_DIR}/$type`
>     +                               realpath=`readlink -fn ${KERNEL_OUTPUT_DIR}/$type`
>     +                               mv -f $realpath $realpath.bak
>     +                               tmp_path=$tmp_path" "$type"#"$linkpath"#"$realpath
>     +                       elif [ -f ${KERNEL_OUTPUT_DIR}/$type ]; then
>     +                               mv -f ${KERNEL_OUTPUT_DIR}/$type ${KERNEL_OUTPUT_DIR}/$type.bak
>     +                               tmp_path=$tmp_path" "$type"##"
>     +                       fi
>     +               done
>                     use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio
>                     kernel_do_compile
>     -               mv -f ${KERNEL_OUTPUT} ${KERNEL_OUTPUT}.initramfs
>     -               mv -f ${KERNEL_OUTPUT}.bak ${KERNEL_OUTPUT}
>     +               # Restoring kernel image
>     +               for tp in $tmp_path ; do
>     +                       type=`echo $tp|cut -d "#" -f 1`
>     +                       linkpath=`echo $tp|cut -d "#" -f 2`
>     +                       realpath=`echo $tp|cut -d "#" -f 3`
>     +                       if [ -n "$realpath" ]; then
>     +                               mv -f $realpath $realpath.initramfs
>     +                               mv -f $realpath.bak $realpath
>     +                               cd ${B}/${KERNEL_OUTPUT_DIR}
>     +                               ln -sf $linkpath.initramfs
>     +                       else
>     +                               mv -f ${KERNEL_OUTPUT_DIR}/$type ${KERNEL_OUTPUT_DIR}/$type.initramfs
>     +                               mv -f ${KERNEL_OUTPUT_DIR}/$type.bak ${KERNEL_OUTPUT_DIR}/$type
>     +                       fi
>     +               done
>                     # Update install area
>     -               echo "There is kernel image bundled with initramfs: ${B}/${KERNEL_OUTPUT}.initramfs"
>     -               install -m 0644 ${B}/${KERNEL_OUTPUT}.initramfs ${D}/boot/${KERNEL_IMAGETYPE}-initramfs-${MACHINE}.bin
>     -               echo "${B}/${KERNEL_OUTPUT}.initramfs"
>     +               for type in ${KERNEL_IMAGETYPES} ; do
>     +                       echo "There is kernel image bundled with initramfs: ${B}/${KERNEL_OUTPUT_DIR}/$type.initramfs"
>     +                       install -m 0644 ${B}/${KERNEL_OUTPUT_DIR}/$type.initramfs ${D}/boot/$type-initramfs-${MACHINE}.bin
>     +                       echo "${B}/${KERNEL_OUTPUT_DIR}/$type.initramfs"
>     +               done
>             fi
>      }
>
>     @@ -207,10 +266,15 @@ kernel_do_compile() {
>                     copy_initramfs
>                     use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio
>             fi
>     -       oe_runmake ${KERNEL_IMAGETYPE_FOR_MAKE} ${KERNEL_ALT_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} $use_alternate_initrd
>     -       if test "${KERNEL_IMAGETYPE_FOR_MAKE}.gz" = "${KERNEL_IMAGETYPE}"; then
>     -               gzip -9c < "${KERNEL_IMAGETYPE_FOR_MAKE}" > "${KERNEL_OUTPUT}"
>     -       fi
>     +       oe_runmake ${KERNEL_IMAGETYPE_FOR_MAKE} CC="${KERNEL_CC}" LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} $use_alternate_initrd
>
>
>
> This is probably something that is worth mentioning in the top of the commit message. You are
> building multiple kernel image types, but they are all currently using the same configuration.
>
> If the make invokations were split into separate calls per image type, we could conceivably
> extend this to generate and use a separate config int he future.
>  

OK. Let me test if there is any side effect after putting this make in a type loop.

>     +       for typeformake in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do
>     +               for type in ${KERNEL_IMAGETYPES} ; do
>     +                       if test "${typeformake}.gz" = "${type}"; then
>     +                               gzip -9c < "${typeformake}" > "${KERNEL_OUTPUT_DIR}/${type}"
>     +                               break;
>     +                       fi
>     +               done
>     +       done
>      }
>
>      do_compile_kernelmodules() {
>     @@ -251,7 +315,9 @@ kernel_do_install() {
>             #
>             install -d ${D}/${KERNEL_IMAGEDEST}
>             install -d ${D}/boot
>     -       install -m 0644 ${KERNEL_OUTPUT} ${D}/${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}
>     +       for type in ${KERNEL_IMAGETYPES} ; do
>     +               install -m 0644 ${KERNEL_OUTPUT_DIR}/${type} ${D}/${KERNEL_IMAGEDEST}/${type}-${KERNEL_VERSION}
>     +       done
>             install -m 0644 System.map ${D}/boot/System.map-${KERNEL_VERSION}
>             install -m 0644 .config ${D}/boot/config-${KERNEL_VERSION}
>             install -m 0644 vmlinux ${D}/boot/vmlinux-${KERNEL_VERSION}
>     @@ -365,12 +431,12 @@ EXPORT_FUNCTIONS do_compile do_install do_configure
>      PACKAGES = "kernel kernel-base kernel-vmlinux kernel-image kernel-dev kernel-modules"
>      FILES_${PN} = ""
>      FILES_kernel-base = "/lib/modules/${KERNEL_VERSION}/modules.order /lib/modules/${KERNEL_VERSION}/modules.builtin"
>     -FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
>     +FILES_kernel-image = ""
>      FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH} /lib/modules/${KERNEL_VERSION}/build"
>      FILES_kernel-vmlinux = "/boot/vmlinux*"
>      FILES_kernel-modules = ""
>      RDEPENDS_kernel = "kernel-base"
>     -# Allow machines to override this dependency if kernel image files are
>     +# Allow machines to override this dependency if kernel image files are
>      # not wanted in images as standard
>      RDEPENDS_kernel-base ?= "kernel-image"
>      PKG_kernel-image = "kernel-image-${@legitimize_package_name('${KERNEL_VERSION}')}"
>     @@ -394,14 +460,6 @@ pkg_postinst_kernel-base () {
>             fi
>      }
>
>     -pkg_postinst_kernel-image () {
>     -       update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION} ${KERNEL_PRIORITY} || true
>     -}
>     -
>     -pkg_postrm_kernel-image () {
>     -       update-alternatives --remove ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} || true
>     -}
>     -
>      PACKAGESPLITFUNCS_prepend = "split_kernel_packages "
>
>      python split_kernel_packages () {
>     @@ -422,13 +480,13 @@ do_kernel_link_vmlinux() {
>
>      do_strip() {
>             if [ -n "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" ]; then
>     -               if [ "${KERNEL_IMAGETYPE}" != "vmlinux" ]; then
>     -                       bbwarn "image type will not be stripped (not supported): ${KERNEL_IMAGETYPE}"
>     +               if ! (echo "${KERNEL_IMAGETYPES}" | grep -q "vmlinux"); then
>
>
> You had used the \bfitImage\b, but here you don't .. grep -w could work for them all.

I'll correct it.

>  
>
>     +                       bbwarn "image type(s) will not be stripped (not supported): ${KERNEL_IMAGETYPES}"
>
>
>
> But on another note. Is it really right to say that none of the images will be stripped if you
> find vmlinux anywhere in the image type list ?
>  

Not clear what you mean here.

>                             return
>                     fi
>
>                     cd ${B}
>     -               headers=`"$CROSS_COMPILE"readelf -S ${KERNEL_OUTPUT} | \
>     +               headers=`"$CROSS_COMPILE"readelf -S ${KERNEL_OUTPUT_DIR}/vmlinux | \
>                               grep "^ \{1,\}\[[0-9 ]\{1,\}\] [^ ]" | \
>                               sed "s/^ \{1,\}\[[0-9 ]\{1,\}\] //" | \
>                               gawk '{print $1}'`
>     @@ -438,7 +496,7 @@ do_strip() {
>                                     bbwarn "Section not found: $str";
>                             fi
>
>     -                       "$CROSS_COMPILE"strip -s -R $str ${KERNEL_OUTPUT}
>     +                       "$CROSS_COMPILE"strip -s -R $str ${KERNEL_OUTPUT_DIR}/vmlinux
>                     }; done
>
>                     bbnote "KERNEL_IMAGE_STRIP_EXTRA_SECTIONS is set, stripping sections:" \
>     @@ -457,20 +515,22 @@ do_sizecheck() {
>                     if [ -n "$invalid" ]; then
>                             die "Invalid KERNEL_IMAGE_MAXSIZE: ${KERNEL_IMAGE_MAXSIZE}, should be an integerx (The unit is Kbytes)"
>                     fi
>     -               size=`du -ks ${B}/${KERNEL_OUTPUT} | awk '{ print $1}'`
>     -               if [ $size -ge ${KERNEL_IMAGE_MAXSIZE} ]; then
>     -                       die "This kernel (size=$size(K) > ${KERNEL_IMAGE_MAXSIZE}(K)) is too big for your device. Please reduce the size of the kernel by making more of it modular."
>     -               fi
>     +               for type in ${KERNEL_IMAGETYPES} ; do
>     +                       size=`du -ks ${B}/${KERNEL_OUTPUT_DIR}/$type | awk '{print $1}'`
>     +                       if [ $size -ge ${KERNEL_IMAGE_MAXSIZE} ]; then
>     +                               die "This kernel $type (size=$size(K) > ${KERNEL_IMAGE_MAXSIZE}(K)) is too big for your device. Please reduce the size of the kernel by making more of it modular."
>
>
> Hmm. Again here. Multiple image types are being built. If one of them is too large for the device,
> who's to say that that's the one that is going to be used ? Maybe this should be a warn, instead
> of a die ?
>  

Fair point. A warn is OK.

>     +                       fi
>     +               done
>             fi
>      }
>      do_sizecheck[dirs] = "${B}"
>
>      addtask sizecheck before do_install after do_strip
>
>     -KERNEL_IMAGE_BASE_NAME ?= "${KERNEL_IMAGETYPE}-${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}"
>     +KERNEL_IMAGE_BASE_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}"
>      # Don't include the DATETIME variable in the sstate package signatures
>      KERNEL_IMAGE_BASE_NAME[vardepsexclude] = "DATETIME"
>     -KERNEL_IMAGE_SYMLINK_NAME ?= "${KERNEL_IMAGETYPE}-${MACHINE}"
>     +KERNEL_IMAGE_SYMLINK_NAME ?= "${MACHINE}"
>      MODULE_IMAGE_BASE_NAME ?= "modules-${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}"
>      MODULE_IMAGE_BASE_NAME[vardepsexclude] = "DATETIME"
>      MODULE_TARBALL_BASE_NAME ?= "${MODULE_IMAGE_BASE_NAME}.tgz"
>     @@ -479,28 +539,37 @@ MODULE_TARBALL_SYMLINK_NAME ?= "modules-${MACHINE}.tgz"
>      MODULE_TARBALL_DEPLOY ?= "1"
>
>      kernel_do_deploy() {
>     -       install -m 0644 ${KERNEL_OUTPUT} ${DEPLOYDIR}/${KERNEL_IMAGE_BASE_NAME}.bin
>     +       for type in ${KERNEL_IMAGETYPES} ; do
>     +               base_name=${type}-${KERNEL_IMAGE_BASE_NAME}
>     +               install -m 0644 ${KERNEL_OUTPUT_DIR}/${type} ${DEPLOYDIR}/${base_name}.bin
>     +       done
>             if [ ${MODULE_TARBALL_DEPLOY} = "1" ] && (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
>                     mkdir -p ${D}/lib
>                     tar -cvzf ${DEPLOYDIR}/${MODULE_TARBALL_BASE_NAME} -C ${D} lib
>                     ln -sf ${MODULE_TARBALL_BASE_NAME} ${DEPLOYDIR}/${MODULE_TARBALL_SYMLINK_NAME}
>             fi
>
>     -       ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${DEPLOYDIR}/${KERNEL_IMAGE_SYMLINK_NAME}.bin
>     -       ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${DEPLOYDIR}/${KERNEL_IMAGETYPE}
>     +       for type in ${KERNEL_IMAGETYPES} ; do
>     +               base_name=${type}-${KERNEL_IMAGE_BASE_NAME}
>     +               symlink_name=${type}-${KERNEL_IMAGE_SYMLINK_NAME}
>     +               ln -sf ${base_name}.bin ${DEPLOYDIR}/${symlink_name}.bin
>     +               ln -sf ${base_name}.bin ${DEPLOYDIR}/${type}
>     +       done
>
>             cp ${COREBASE}/meta/files/deploydir_readme.txt ${DEPLOYDIR}/README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt
>
>             cd ${B}
>             # Update deploy directory
>     -       if [ -e "${KERNEL_OUTPUT}.initramfs" ]; then
>     -               echo "Copying deploy kernel-initramfs image and setting up links..."
>     -               initramfs_base_name=${INITRAMFS_BASE_NAME}
>     -               initramfs_symlink_name=${KERNEL_IMAGETYPE}-initramfs-${MACHINE}
>     -               install -m 0644 ${KERNEL_OUTPUT}.initramfs ${DEPLOYDIR}/${initramfs_base_name}.bin
>     -               cd ${DEPLOYDIR}
>     -               ln -sf ${initramfs_base_name}.bin ${initramfs_symlink_name}.bin
>     -       fi
>     +       for type in ${KERNEL_IMAGETYPES} ; do
>     +               if [ -e "${KERNEL_OUTPUT_DIR}/${type}.initramfs" ]; then
>     +                       echo "Copying deploy ${type} kernel-initramfs image and setting up links..."
>     +                       initramfs_base_name=${type}-${INITRAMFS_BASE_NAME}
>     +                       initramfs_symlink_name=${type}-initramfs-${MACHINE}
>     +                       install -m 0644 ${KERNEL_OUTPUT_DIR}/${type}.initramfs ${DEPLOYDIR}/${initramfs_base_name}.bin
>     +                       cd ${DEPLOYDIR}
>     +                       ln -sf ${initramfs_base_name}.bin ${initramfs_symlink_name}.bin
>     +               fi
>     +       done
>      }
>      do_deploy[cleandirs] = "${DEPLOYDIR}"
>      do_deploy[dirs] = "${DEPLOYDIR} ${B}"
>     diff --git a/meta/conf/documentation.conf b/meta/conf/documentation.conf
>     index 00a69da..b3969b0 100644
>     --- a/meta/conf/documentation.conf
>     +++ b/meta/conf/documentation.conf
>     @@ -246,6 +246,7 @@ KERNEL_CLASSES[doc] = "A list of classes defining kernel image types that kernel
>      KERNEL_EXTRA_ARGS[doc] = "Specifies additional make command-line arguments the OpenEmbedded build system passes on when compiling the kernel."
>      KERNEL_FEATURES[doc] = "Includes additional metadata from the Yocto Project kernel Git repository. The metadata you add through this variable includes config fragments and features descriptions."
>      KERNEL_IMAGETYPE[doc] = "The type of kernel to build for a device, usually set by the machine configuration files and defaults to 'zImage'."
>     +KERNEL_IMAGETYPES[doc] = "The list of types of kernel to build for a device, usually set by the machine configuration files and defaults to KERNEL_IMAGETYPE."
>      KERNEL_MODULE_AUTOLOAD[doc] = "Lists kernel modules that need to be auto-loaded during boot"
>      KERNEL_MODULE_PROBECONF[doc] = "Lists kernel modules for which the build system expects to find module_conf_* values that specify configuration for each of the modules"
>      KERNEL_PATH[doc] = "The location of the kernel sources. This variable is set to the value of the STAGING_KERNEL_DIR within the module class (module.bbclass)."
>     diff --git a/meta/conf/machine/qemumips.conf b/meta/conf/machine/qemumips.conf
>     index fbf8137..67ce161 100644
>     --- a/meta/conf/machine/qemumips.conf
>     +++ b/meta/conf/machine/qemumips.conf
>     @@ -6,7 +6,7 @@ require conf/machine/include/qemu.inc
>      require conf/machine/include/tune-mips32r2.inc
>
>      KERNEL_IMAGETYPE = "vmlinux"
>     -KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
>     +KERNEL_IMAGETYPES = "vmlinux.bin"
>
>      SERIAL_CONSOLES = "115200;ttyS0 115200;ttyS1"
>
>     diff --git a/meta/conf/machine/qemumips64.conf b/meta/conf/machine/qemumips64.conf
>     index 8c3f1fe..393212e 100644
>     --- a/meta/conf/machine/qemumips64.conf
>     +++ b/meta/conf/machine/qemumips64.conf
>     @@ -6,7 +6,7 @@ require conf/machine/include/qemu.inc
>      require conf/machine/include/tune-mips64.inc
>
>      KERNEL_IMAGETYPE = "vmlinux"
>     -KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
>     +KERNEL_IMAGETYPES = "vmlinux.bin"
>
>      SERIAL_CONSOLES = "115200;ttyS0 115200;ttyS1"
>
>     diff --git a/meta/recipes-kernel/linux/linux-dtb.inc b/meta/recipes-kernel/linux/linux-dtb.inc
>     index 651a19e..74f5ef8 100644
>     --- a/meta/recipes-kernel/linux/linux-dtb.inc
>     +++ b/meta/recipes-kernel/linux/linux-dtb.inc
>     @@ -34,9 +34,12 @@ do_install_append() {
>             for DTB in ${KERNEL_DEVICETREE}; do
>                     DTB=`normalize_dtb "${DTB}"`
>                     DTB_BASE_NAME=`basename ${DTB} .dtb`
>     -               DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     -               DTB_PATH=`get_real_dtb_path_in_kernel "${DTB}"`
>     -               install -m 0644 ${DTB_PATH} ${D}/${KERNEL_IMAGEDEST}/devicetree-${DTB_SYMLINK_NAME}.dtb
>     +               for type in ${KERNEL_IMAGETYPE_FOR_MAKE}; do
>     +                       symlink_name=${type}"-"${KERNEL_IMAGE_SYMLINK_NAME}
>
>
> If there are multiple image types being built, is this valid for them all ?

Add these links for convenience. If we give different configurations to
different types of images in the future, as you pointed above, we might
also need different dtb.

>  
>
>     +                       DTB_SYMLINK_NAME=`echo ${symlink_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     +                       DTB_PATH=`get_real_dtb_path_in_kernel "${DTB}"`
>     +                       install -m 0644 ${DTB_PATH} ${D}/${KERNEL_IMAGEDEST}/devicetree-${DTB_SYMLINK_NAME}.dtb
>     +               done
>             done
>      }
>
>     @@ -44,31 +47,39 @@ do_deploy_append() {
>             for DTB in ${KERNEL_DEVICETREE}; do
>                     DTB=`normalize_dtb "${DTB}"`
>                     DTB_BASE_NAME=`basename ${DTB} .dtb`
>     -               DTB_NAME=`echo ${KERNEL_IMAGE_BASE_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     -               DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     -               DTB_PATH=`get_real_dtb_path_in_kernel "${DTB}"`
>     -               install -d ${DEPLOYDIR}
>     -               install -m 0644 ${DTB_PATH} ${DEPLOYDIR}/${DTB_NAME}.dtb
>     -               ln -sf ${DTB_NAME}.dtb ${DEPLOYDIR}/${DTB_SYMLINK_NAME}.dtb
>     +               for type in ${KERNEL_IMAGETYPE_FOR_MAKE}; do
>     +                       base_name=${type}"-"${KERNEL_IMAGE_BASE_NAME}
>     +                       symlink_name=${type}"-"${KERNEL_IMAGE_SYMLINK_NAME}
>     +                       DTB_NAME=`echo ${base_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     +                       DTB_SYMLINK_NAME=`echo ${symlink_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     +                       DTB_PATH=`get_real_dtb_path_in_kernel "${DTB}"`
>     +                       install -d ${DEPLOYDIR}
>     +                       install -m 0644 ${DTB_PATH} ${DEPLOYDIR}/${DTB_NAME}.dtb
>     +                       ln -sf ${DTB_NAME}.dtb ${DEPLOYDIR}/${DTB_SYMLINK_NAME}.dtb
>     +               done
>             done
>      }
>
>      pkg_postinst_kernel-devicetree () {
>             cd /${KERNEL_IMAGEDEST}
>     -       for DTB in ${KERNEL_DEVICETREE}
>     -       do
>     -               DTB_BASE_NAME=`basename ${DTB} | awk -F "." '{print $1}'`
>     -               DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     -               update-alternatives --install /${KERNEL_IMAGEDEST}/${DTB_BASE_NAME}.dtb ${DTB_BASE_NAME}.dtb /boot/devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
>     +       for DTB in ${KERNEL_DEVICETREE}; do
>     +               for type in ${KERNEL_IMAGETYPE_FOR_MAKE}; do
>     +                       symlink_name=${type}"-"${KERNEL_IMAGE_SYMLINK_NAME}
>     +                       DTB_BASE_NAME=`basename ${DTB} | awk -F "." '{print $1}'`
>     +                       DTB_SYMLINK_NAME=`echo ${symlink_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     +                       update-alternatives --install /${KERNEL_IMAGEDEST}/${DTB_BASE_NAME}.dtb ${DTB_BASE_NAME}.dtb /boot/devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
>     +               done
>             done
>      }
>
>      pkg_postrm_kernel-devicetree () {
>             cd /${KERNEL_IMAGEDEST}
>     -       for DTB in ${KERNEL_DEVICETREE}
>     -       do
>     -               DTB_BASE_NAME=`basename ${DTB} | awk -F "." '{print $1}'`
>     -               DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     -               update-alternatives --remove ${DTB_BASE_NAME}.dtb /boot/devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
>     +       for DTB in ${KERNEL_DEVICETREE}; do
>     +               for type in ${KERNEL_IMAGETYPE_FOR_MAKE}; do
>     +                       symlink_name=${type}"-"${KERNEL_IMAGE_SYMLINK_NAME}
>     +                       DTB_BASE_NAME=`basename ${DTB} | awk -F "." '{print $1}'`
>     +                       DTB_SYMLINK_NAME=`echo ${symlink_name} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
>     +                       update-alternatives --remove ${DTB_BASE_NAME}.dtb /boot/devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
>     +               done
>             done
>      }
>     diff --git a/scripts/lib/bsp/substrate/target/arch/mips/conf/machine/machine.conf b/scripts/lib/bsp/substrate/target/arch/mips/conf/machine/machine.conf
>     index b319d62..e4a6f30 100644
>     --- a/scripts/lib/bsp/substrate/target/arch/mips/conf/machine/machine.conf
>     +++ b/scripts/lib/bsp/substrate/target/arch/mips/conf/machine/machine.conf
>     @@ -9,7 +9,7 @@ require conf/machine/include/tune-mips32.inc
>      MACHINE_FEATURES = "screen keyboard pci usbhost ext2 ext3 serial"
>
>      KERNEL_IMAGETYPE = "vmlinux"
>     -KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
>     +KERNEL_IMAGETYPES = "vmlinux.bin"
>      KERNEL_IMAGE_STRIP_EXTRA_SECTIONS  = ".comment"
>
>      {{ if kernel_choice == "custom": preferred_kernel = "linux-yocto-custom" }}
>     diff --git a/scripts/lib/bsp/substrate/target/arch/mips64/conf/machine/machine.conf b/scripts/lib/bsp/substrate/target/arch/mips64/conf/machine/machine.conf
>     index 3afc5e0..2c2d8af 100644
>     --- a/scripts/lib/bsp/substrate/target/arch/mips64/conf/machine/machine.conf
>     +++ b/scripts/lib/bsp/substrate/target/arch/mips64/conf/machine/machine.conf
>     @@ -9,7 +9,7 @@ require conf/machine/include/tune-mips64.inc
>      MACHINE_FEATURES = "pci ext2 ext3 serial"
>
>      KERNEL_IMAGETYPE = "vmlinux"
>     -KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
>     +KERNEL_IMAGETYPES = "vmlinux.bin"
>
>
>
> Again, why can't vmlinux just bein in KERNEL_IMAGETYPES ?
>

Discussed above.

Thanks,
Zhe

> Bruce
>  
>
>      KERNEL_IMAGE_STRIP_EXTRA_SECTIONS  = ".comment"
>
>      {{ if kernel_choice == "custom": preferred_kernel = "linux-yocto-custom" }}
>     diff --git a/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/machine.conf b/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/machine.conf
>     index 67e1cbd..7a0a4d3 100644
>     --- a/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/machine.conf
>     +++ b/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/machine.conf
>     @@ -69,6 +69,6 @@ SERIAL_CONSOLE = "115200 ttyS0"
>
>      {{ if qemuarch == "mips" or qemuarch == "mips64": }}
>      KERNEL_IMAGETYPE = "vmlinux"
>     -KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
>     +KERNEL_IMAGETYPES = "vmlinux.bin"
>      SERIAL_CONSOLE = "115200 ttyS0"
>      MACHINE_EXTRA_RRECOMMENDS = " kernel-modules"
>     --
>     1.9.1
>
>     --
>     _______________________________________________
>     Openembedded-core mailing list
>     Openembedded-core at lists.openembedded.org <mailto:Openembedded-core at lists.openembedded.org>
>     http://lists.openembedded.org/mailman/listinfo/openembedded-core
>
>
>
>
> -- 
> "Thou shalt not follow the NULL pointer, for chaos and madness await thee at its end"




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