build_tools/dkms-helper: Helper script for DKMS integration.
DKMS (Dynamic Kernel Module Support) [1] provides a mechanism where kernel modules can be automatically updated when a new kernel is booted. This is a simple helper script to automate the process of adding dahdi-linux to the local DKMS system. [1] http://linux.dell.com/dkms/ Signed-off-by: Shaun Ruffell <sruffell@digium.com> Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
This commit is contained in:
Shaun Ruffell
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2e7acd212e
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123
build_tools/dkms-helper
Executable file
123
build_tools/dkms-helper
Executable file
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#!/bin/sh
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set -e
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DKMS=$(which dkms)
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usage() {
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echo "$(basename $0): Helper functions for DKMS (Dynamic Kernel Module Support)"
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echo "Usage: $0 [add|remove|generate_conf]"
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echo "Options:"
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echo " remove -a : Remove all versions of DAHDI for all kernels."
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echo ""
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echo "Examples:"
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echo ""
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echo " build_tools/dkms-helper add"
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echo " Installs the current version of DAHDI into the DKMS system."
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echo ""
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echo " build_tools/dkms-helper remove"
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echo " Removes the current version of DAHDI from all kernels."
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echo ""
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echo " build_tools/dkms-helper generate_conf > dkms.conf"
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echo " Create a dkms.conf based on the currently compiled kernel"
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echo " modules. This is also done as part of add and is not"
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echo " normally needed as a separate step."
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echo ""
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echo "NOTE: Because firmware files could be different between different"
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echo "versions of DAHDI, and the firmware files are installed into the common"
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echo "/lib/firmware directory, you should remove a given version of DAHDI from all"
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echo "kernels before installing a new version of DAHDI to avoid potential"
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echo "conflicts."
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echo ""
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}
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generate_configuration() {
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echo 'PACKAGE_NAME="dahdi-linux"'
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echo "PACKAGE_VERSION=\"$(build_tools/make_version .)\""
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echo 'MAKE="make KSRC=/lib/modules/${kernelver}/build"'
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echo 'CLEAN="make clean"'
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echo 'AUTOINSTALL="yes"'
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let "module_number=0" || true
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for file in $(find ./ -type f -name "*.ko"); do
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MODULE_LOCATION=$(dirname $file | cut -d\/ -f 2-)
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echo "BUILT_MODULE_NAME[$module_number]=\"$(basename $file .ko)\""
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echo "BUILT_MODULE_LOCATION[$module_number]=\"$MODULE_LOCATION\""
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echo "DEST_MODULE_LOCATION[$module_number]=\"/kernel/dahdi/$(echo $MODULE_LOCATION | cut -d\/ -f 3-)\""
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let "module_number=${module_number}+1" || true
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done
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if [ $module_number -eq 0 ]; then
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echo "WARNING: You should build the modules before generating a config." >&2
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exit 1
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fi
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}
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add() {
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GIT=$(which git)
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VERSION="$(build_tools/make_version .)"
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if [ $(id -u) != "0" ]; then
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echo "You must run $0 as root."
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exit 1
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fi
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echo "Building for version ${VERSION}"
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make > /dev/null
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echo "Copying to /usr/src/dahdi-linux-${VERSION}"
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if [ ! -d /usr/src/dahdi-linux-${VERSION} ]; then
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if [ -d .git ]; then
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${GIT} checkout-index -a --prefix=/usr/src/dahdi-linux-${VERSION}/
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else
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cp -f -r * /usr/src/dahdi-linux-${VERSION}/
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fi
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fi
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make -C /usr/src/dahdi-linux-${VERSION} install-firmware firmware-loaders
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build_tools/dkms-helper generate_conf > /usr/src/dahdi-linux-${VERSION}/dkms.conf
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echo $VERSION > /usr/src/dahdi-linux-${VERSION}/.version
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${DKMS} add -m dahdi-linux -v ${VERSION}
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${DKMS} build -m dahdi-linux -v ${VERSION}
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${DKMS} install --force -m dahdi-linux -v ${VERSION}
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}
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remove() {
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if [ $(id -u) != "0" ]; then
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echo "You must run $0 as root."
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exit 1
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fi
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REMOVE_ALL=false
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shift
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while getopts "a" opt; do
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case $opt in
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a) REMOVE_ALL=true ;;
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*) echo "Unknown option to remove" ; exit 1;;
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esac
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done
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if [ $REMOVE_ALL == true ]; then
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# Remove all installed dahdi versions for all kernels.
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for version in $(${DKMS} status -m dahdi-linux | cut -d, -f 2 | sed -e "s/^\s\+//"); do
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echo "Removing version ${version}"
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${DKMS} remove -m dahdi-linux -v ${version} --all
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rm -f -r /usr/src/dahdi-linux-${version}
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done
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else
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# Just remove the version for the current tree.
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GIT=$(which git)
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VERSION="$(build_tools/make_version .)"
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${DKMS} remove -m dahdi-linux -v ${VERSION} --all
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if [ -e /usr/src/dahdi-linux-${VERSION}/dkms.conf ]; then
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rm -f -r /usr/src/dahdi-linux-${VERSION}
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else
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echo "/usr/src/dahdi-linux-${VERSION} not a dkms dir?"
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exit 1
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fi
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fi
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}
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# Run the command...
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shift $(($OPTIND-1))
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COMMAND=$1
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case $COMMAND in
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add) add $*; exit $? ;;
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remove) remove $* ; exit $? ;;
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generate_conf) generate_configuration; exit $? ;;
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*) echo "unknown command $0" ; usage; exit 1;;
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esac
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exit 0
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