[OE-core] [PATCH 2/2 v2] module.bbclass: Create a new depmodwrapper to assist cross-installs

Bruce Ashfield bruce.ashfield at gmail.com
Thu Feb 28 21:09:34 UTC 2013


On Thu, Feb 28, 2013 at 4:04 PM, Otavio Salvador
<otavio at ossystems.com.br> wrote:
> On Thu, Feb 28, 2013 at 5:48 PM, Mark Hatle <mark.hatle at windriver.com> wrote:
>> Previously the build path to STAGING_KERNEL_DIR was being embedded into the
>> package post install scripts.  We avoid this behavior by generating a special
>> depmodwrapper script.  This script contains that hard-coded path, ensuring
>> that re-use of the sstate-cache (and/or packages) will always run through the
>> wrapper generated by the current build with a checksum that includes
>> STAGING_KERNEL_DIR.
>>
>> [ YOCTO #3962 ]
>>
>> Signed-off-by: Mark Hatle <mark.hatle at windriver.com>
>> Signed-off-by: Bruce Ashfield <bruce.ashfield at windriver.com>
>> ---
>>  meta/classes/image.bbclass                         |    4 +-
>>  meta/classes/kernel.bbclass                        |    8 ++--
>>  meta/classes/module.bbclass                        |    4 +-
>>  .../recipes-kernel/kmod/depmodwrapper-cross_1.0.bb |   44 ++++++++++++++++++++
>
> Why you don't put the script in a file and get it in SRC_URI? It is
> bad to read the script content in the recipe.

string expansion. If it isn't embedded in the recipe, it's a two phase approach
of needing to fetch the script, and then do variable substitution (via
parameters,
sed, autoconf .. or whatever else people can dream up).

AFAIK this follows the convention of the other wrapper scripts as well.

Cheers,

Bruce

>
>>  4 files changed, 52 insertions(+), 8 deletions(-)
>>  create mode 100644 meta/recipes-kernel/kmod/depmodwrapper-cross_1.0.bb
>>
>> diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
>> index dd78acb..af17331 100644
>> --- a/meta/classes/image.bbclass
>> +++ b/meta/classes/image.bbclass
>> @@ -10,7 +10,7 @@ inherit gzipnative
>>
>>  LICENSE = "MIT"
>>  PACKAGES = ""
>> -DEPENDS += "${MLPREFIX}qemuwrapper-cross"
>> +DEPENDS += "${MLPREFIX}qemuwrapper-cross depmodwrapper-cross"
>>  RDEPENDS += "${IMAGE_INSTALL} ${LINGUAS_INSTALL} ${NORMAL_FEATURE_INSTALL} ${ROOTFS_BOOTSTRAP_INSTALL}"
>>  RRECOMMENDS += "${NORMAL_FEATURE_INSTALL_OPTIONAL}"
>>
>> @@ -283,7 +283,7 @@ fakeroot do_rootfs () {
>>                 KERNEL_VERSION=`cat ${STAGING_KERNEL_DIR}/kernel-abiversion`
>>
>>                 mkdir -p ${IMAGE_ROOTFS}/lib/modules/$KERNEL_VERSION
>> -               depmod -a -b ${IMAGE_ROOTFS} -F ${STAGING_KERNEL_DIR}/System.map-$KERNEL_VERSION $KERNEL_VERSION
>> +               depmodwrapper -a -b ${IMAGE_ROOTFS} $KERNEL_VERSION
>>         fi
>>
>>         ${IMAGE_PREPROCESS_COMMAND}
>> diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
>> index e8c585b..2bdc2fc 100644
>> --- a/meta/classes/kernel.bbclass
>> +++ b/meta/classes/kernel.bbclass
>> @@ -1,7 +1,7 @@
>>  inherit linux-kernel-base module_strip
>>
>>  PROVIDES += "virtual/kernel"
>> -DEPENDS += "virtual/${TARGET_PREFIX}gcc kmod-native"
>> +DEPENDS += "virtual/${TARGET_PREFIX}gcc kmod-native depmodwrapper-cross"
>>
>>  # we include gcc above, we dont need virtual/libc
>>  INHIBIT_DEFAULT_DEPS = "1"
>> @@ -272,7 +272,7 @@ if [ ! -e "$D/lib/modules/${KERNEL_VERSION}" ]; then
>>         mkdir -p $D/lib/modules/${KERNEL_VERSION}
>>  fi
>>  if [ -n "$D" ]; then
>> -       depmod -a -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION}
>> +       depmodwrapper -a -b $D ${KERNEL_VERSION}
>>  else
>>         depmod -a ${KERNEL_VERSION}
>>  fi
>> @@ -282,7 +282,7 @@ pkg_postinst_modules () {
>>  if [ -z "$D" ]; then
>>         depmod -a ${KERNEL_VERSION}
>>  else
>> -       depmod -a -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION}
>> +       depmodwrapper -a -b $D ${KERNEL_VERSION}
>>  fi
>>  }
>>
>> @@ -290,7 +290,7 @@ pkg_postrm_modules () {
>>  if [ -z "$D" ]; then
>>         depmod -a ${KERNEL_VERSION}
>>  else
>> -       depmod -a -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION}
>> +       depmodwrapper -a -b $D ${KERNEL_VERSION}
>>  fi
>>  }
>>
>> diff --git a/meta/classes/module.bbclass b/meta/classes/module.bbclass
>> index e2174a1..2c1888c 100644
>> --- a/meta/classes/module.bbclass
>> +++ b/meta/classes/module.bbclass
>> @@ -28,7 +28,7 @@ module_pkg_postinst () {
>>  if [ -z "$D" ]; then
>>         depmod -a ${KERNEL_VERSION}
>>  else
>> -       depmod -a -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION}
>> +       depmodwrapper -a -b $D ${KERNEL_VERSION}
>>  fi
>>  }
>>
>> @@ -36,7 +36,7 @@ module_pkg_postrm () {
>>  if [ -z "$D" ]; then
>>         depmod -a ${KERNEL_VERSION}
>>  else
>> -       depmod -a -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION}
>> +       depmodwrapper -a -b $D ${KERNEL_VERSION}
>>  fi
>>  }
>>
>> diff --git a/meta/recipes-kernel/kmod/depmodwrapper-cross_1.0.bb b/meta/recipes-kernel/kmod/depmodwrapper-cross_1.0.bb
>> new file mode 100644
>> index 0000000..fd7d67d
>> --- /dev/null
>> +++ b/meta/recipes-kernel/kmod/depmodwrapper-cross_1.0.bb
>> @@ -0,0 +1,44 @@
>> +DESCRIPTION = "Depmod wrapper script"
>> +LICENSE = "MIT"
>> +PR = "r0"
>> +LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
>> +
>> +# We need to evaluate it to the final path for vardeps to
>> +# work properly.
>> +STAGING_KERNEL_DIR := "${STAGING_KERNEL_DIR}"
>> +
>> +do_install() {
>> +       install -d ${D}${bindir_crossscripts}/
>> +
>> +       cat > ${D}${bindir_crossscripts}/depmodwrapper << EOF
>> +#!/bin/sh
>> +# Expected to be called as: depmodwrapper -a KERNEL_VERSION
>> +if [ "\$1" != "-a" -a "\$2" != "-b" ]; then
>> +    echo "Usage: depmodwrapper -a -b rootfs KERNEL_VERSION" >&2
>> +    exit 1
>> +fi
>> +if [ ! -r ${STAGING_KERNEL_DIR}/kernel-abiversion ]; then
>> +    echo "Unable to read: ${STAGING_KERNEL_DIR}/kernel-abiversion" >&2
>> +else
>> +    kernelabi=\$(cat ${STAGING_KERNEL_DIR}/kernel-abiversion)
>> +    if [ "\$kernelabi" != "\$4" ]; then
>> +        echo "Error: Kernel version \$4 does not match kernel-abiversion (\$kernelabi)" >&2
>> +        exit 1
>> +    fi
>> +fi
>> +
>> +if [ ! -r ${STAGING_KERNEL_DIR}/System.map-\$4 ]; then
>> +    echo "Unable to read: ${STAGING_KERNEL_DIR}/System.map-\$4" >&2
>> +    exec env depmod "\$1" "\$2" "\$3" "\$4"
>> +else
>> +    exec env depmod "\$1" "\$2" "\$3" -F "${STAGING_KERNEL_DIR}/System.map-\$4" "\$4"
>> +fi
>> +EOF
>> +       chmod +x ${D}${bindir_crossscripts}/depmodwrapper
>> +}
>> +
>> +SYSROOT_PREPROCESS_FUNCS += "depmodwrapper_sysroot_preprocess"
>> +
>> +depmodwrapper_sysroot_preprocess () {
>> +       sysroot_stage_dir ${D}${bindir_crossscripts} ${SYSROOT_DESTDIR}${bindir_crossscripts}
>> +}
>> --
>> 1.7.1
>>
>>
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>
>
>
> --
> Otavio Salvador                             O.S. Systems
> E-mail: otavio at ossystems.com.br  http://www.ossystems.com.br
> Mobile: +55 53 9981-7854              http://projetos.ossystems.com.br
>
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core at lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core



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