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author Patrick J Volkerding <volkerdi@slackware.com>2021-10-23 18:57:30 +0000
committer Eric Hameleers <alien@slackware.com>2021-10-24 08:59:56 +0200
commit9d31c53bf5c7a326a03f0b37e534d6ae40cf5d8f (patch)
tree944e36a11bafad39a26af4515e17e8e4b7db0d6c /testing/source/linux-5.14.x/kernel-source.SlackBuild
parent1bb03caa091f9fa14d1e6120ad2bd1dfa25c76c5 (diff)
downloadcurrent-20211023185730.tar.gz
current-20211023185730.tar.xz
Sat Oct 23 18:57:30 UTC 202120211023185730
a/aaa_terminfo-6.3-x86_64-1.txz: Upgraded. a/glibc-zoneinfo-2021e-noarch-1.txz: Upgraded. ap/itstool-2.0.7-x86_64-2.txz: Rebuilt. Rebuilt with PYTHON=/usr/bin/python3. Thanks to USUARIONUEVO. ap/mpg123-1.29.2-x86_64-1.txz: Upgraded. d/meson-0.59.3-x86_64-1.txz: Upgraded. d/parallel-20211022-noarch-1.txz: Upgraded. d/python-pip-21.3.1-x86_64-1.txz: Upgraded. d/python-setuptools-58.3.0-x86_64-1.txz: Upgraded. l/exiv2-0.27.5-x86_64-1.txz: Upgraded. l/ncurses-6.3-x86_64-1.txz: Upgraded. n/php-7.4.25-x86_64-1.txz: Upgraded. This update fixes bugs and a security issue: FPM: PHP-FPM oob R/W in root process leading to privilege escalation. For more information, see: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21703 (* Security fix *) xap/mozilla-thunderbird-91.2.1-x86_64-1.txz: Upgraded. This is a bugfix release. For more information, see: https://www.mozilla.org/en-US/thunderbird/91.2.1/releasenotes/ testing/packages/linux-5.14.x/kernel-generic-5.14.14-x86_64-2.txz: Rebuilt. testing/packages/linux-5.14.x/kernel-headers-5.14.14-x86-2.txz: Rebuilt. testing/packages/linux-5.14.x/kernel-huge-5.14.14-x86_64-2.txz: Rebuilt. testing/packages/linux-5.14.x/kernel-modules-5.14.14-x86_64-2.txz: Rebuilt. testing/packages/linux-5.14.x/kernel-source-5.14.14-noarch-2.txz: Rebuilt. These kernels enable CONFIG_PREEMPT=y and CONFIG_PREEMPT_DYNAMIC=y allowing the kernel preemption model to be specified on the kernel command line with one of these options: preempt=none, preempt=voluntary, and preempt=full. Since there is no .config option to set a default, and the default in the kernel sources is "full" (which is probably not a good default), the kernel-source.SlackBuild has been modified to add support for an environment variable CONFIG_PREEMPT_DEFAULT_MODE which can be set to none, voluntary, or full to set the default kernel preemption model when a command line option is not provided. These kernels have been built with a preemption model of "none" (presumably the safest choice which will behave like the kernels we have shipped before.) The runtime overhead on 64-bit should be negligible. On 32-bit we lack support for HAVE_STATIC_CALL_INLINE, so spinlocks and mutexes will have to be approached through a trampoline, adding a very small amount of overhead. I feel this is probably worth it in order to have the option to run a kernel with voluntary or full preemption, especially for gaming or desktop purposes. The reduction in input lag with these modes is actually quite noticable. To check the current preemption model, you may use debugfs: mount -t debugfs none /sys/kernel/debug cat /sys/kernel/debug/sched/preempt (none) voluntary full You may change to a different preemption model on the fly once debugfs is mounted: echo voluntary > /sys/kernel/debug/sched/preempt cat /sys/kernel/debug/sched/preempt none (voluntary) full Thanks to Daedra. -DRM_I810 n -INLINE_READ_UNLOCK y -INLINE_READ_UNLOCK_IRQ y -INLINE_SPIN_UNLOCK_IRQ y -INLINE_WRITE_UNLOCK y -INLINE_WRITE_UNLOCK_IRQ y PREEMPT n -> y PREEMPT_VOLUNTARY y -> n +CEC_GPIO n +DEBUG_PREEMPT y +PREEMPTION y +PREEMPT_COUNT y +PREEMPT_DYNAMIC y +PREEMPT_RCU y +PREEMPT_TRACER n +RCU_BOOST n +TASKS_RCU y +UNINLINE_SPIN_UNLOCK y
Diffstat (limited to 'testing/source/linux-5.14.x/kernel-source.SlackBuild')
-rwxr-xr-xtesting/source/linux-5.14.x/kernel-source.SlackBuild194
1 files changed, 194 insertions, 0 deletions
diff --git a/testing/source/linux-5.14.x/kernel-source.SlackBuild b/testing/source/linux-5.14.x/kernel-source.SlackBuild
new file mode 100755
index 000000000..68dfdcb52
--- /dev/null
+++ b/testing/source/linux-5.14.x/kernel-source.SlackBuild
@@ -0,0 +1,194 @@
+#!/bin/sh
+
+# Copyright 2018, 2020, 2021 Patrick J. Volkerding, Sebeka, Minnesota, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PKGNAM=${PKGNAM:-kernel-source}
+BUILD=${BUILD:-1}
+NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}
+TMP=${TMP:-/tmp}
+PKG=$TMP/package-$PKGNAM
+# If CONFIG_PREEMPT=y and CONFIG_PREEMPT_DYNAMIC=y, then set a default preempt
+# mode (none, voluntary, or full):
+CONFIG_PREEMPT_DEFAULT_MODE=${CONFIG_PREEMPT_DEFAULT_MODE:-none}
+
+# If a $VERSION is not passed to this script, use the newest linux-*.tar.xz
+# found in this directory:
+VERSION=${VERSION:-$(/bin/ls -t linux-*.tar.?z | head -n 1 | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
+if ! /bin/ls linux-*.tar.?z 1> /dev/null 2> /dev/null ; then
+ echo "Error: kernel source not found. (/bin/ls linux-*.tar.?z)"
+fi
+
+# Automatically determine the architecture we're building on:
+if [ -z "$ARCH" ]; then
+ case "$(uname -m)" in
+ # Use uname -m for all archs:
+ *) ARCH=$(uname -m) ;;
+ esac
+fi
+
+# Kernel extraversion, such as "-smp" on 32-bit. There's usually no need to set
+# this unless you're using something unusual. We use it to find which .config
+# file to use, but we'll then use whatever CONFIG_LOCALVERSION is set to
+# inside the .config.
+LOCALVERSION=${LOCALVERSION:-""}
+
+# If KERNEL_CONFIG (name of kernel .config file in ./kernel-configs to use)
+# has not been passed to this script, then we will select one. We will prefer
+# to use a generic, SMP-supporting .config with a version number exactly
+# matching the kernel sources. But if there's no exact version match, we will
+# start with the newest .config we can find that's of the appropriate type.
+if [ -z "${KERNEL_CONFIG}" ]; then # figure out the best matching .config
+ if [ "$ARCH" = "x86_64" ]; then
+ CONFIG_SUFFIX=".x64"
+ fi
+ if [ -z "${LOCALVERSION}" ]; then
+ if echo $ARCH | grep -q -E "i?86$" ; then
+ # Default to SMP extraversion on 32-bit:
+ LOCALVERSION="-smp"
+ fi
+ fi
+ if [ -r "$CWD/kernel-configs/config-generic${LOCALVERSION}-${VERSION}$LOCALVERSION${CONFIG_SUFFIX}" ]; then
+ # Exact match!
+ KERNEL_CONFIG="config-generic${LOCALVERSION}-${VERSION}${LOCALVERSION}${CONFIG_SUFFIX}"
+ else # no exact match, so find newest with the same name:
+ FIND_MATCH="$(/bin/ls -t $CWD/kernel-configs/config-generic${LOCALVERSION}-*${LOCALVERSION}${CONFIG_SUFFIX} 2> /dev/null | head -n 1)"
+ if [ -r "${FIND_MATCH}" ]; then
+ KERNEL_CONFIG="$(basename ${FIND_MATCH})"
+ unset FIND_MATCH
+ else
+ echo "Error: no matching .config file could be found for this kernel. Tried:"
+ echo " $CWD/kernel-configs/config-generic${LOCALVERSION}-${VERSION}${LOCALVERSION}${CONFIG_SUFFIX} (not found)"
+ exit 1
+ fi
+ fi
+else # We were given a name to use:
+ if [ ! -r "$CWD/kernel-configs/${KERNEL_CONFIG}" ]; then
+ echo "Error: specified kernel .config $CWD/kernel-configs/${KERNEL_CONFIG} was not found."
+ exit 1
+ fi
+fi
+# Set LOCALVERSION to the value found inside the .config:
+LOCALVERSION="$(cat $CWD/kernel-configs/${KERNEL_CONFIG} | grep CONFIG_LOCALVERSION= | cut -f 2 -d = | tr -d \")"
+
+# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
+# the name of the created package would be, and then exit. This information
+# could be useful to other scripts.
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+ # We will have to extract and patch the kernel sources to find out the kernel version:
+ TEMPDIR=$(mktemp -d)
+ cd $TEMPDIR
+ tar xf $CWD/linux-${VERSION}.tar.?z || exit 1
+ cd linux*
+ if [ -d $CWD/patches-${VERSION} ]; then
+ zcat $CWD/patches-${VERSION}/*.gz | patch -p1 --backup --suffix=.orig 1> /dev/null 2> /dev/null || exit 1
+ fi
+ PACKAGE_VERSION=$(grep "^VERSION = " Makefile | rev | cut -f 1 -d ' ' | rev).$(grep "^PATCHLEVEL = " Makefile | rev | cut -f 1 -d ' ' | rev).$(grep "^SUBLEVEL = " Makefile | rev | cut -f 1 -d ' ' | rev)$(grep "^EXTRAVERSION = " Makefile | rev | cut -f 1 -d ' ' | rev)
+ cd $CWD
+ rm -rf $TEMPDIR
+ echo "kernel-source-$(echo ${PACKAGE_VERSION} | tr - _)$(echo ${LOCALVERSION} | tr - _)-noarch-$BUILD.txz"
+ exit 0
+fi
+
+echo "Using kernel config: $CWD/kernel-configs/${KERNEL_CONFIG}"
+
+rm -rf $PKG
+mkdir -p $TMP $PKG
+mkdir -p $PKG/usr/src
+
+echo "Untarring $CWD/linux-${VERSION}.tar.?z in $PKG/usr/src..."
+( cd $PKG/usr/src
+ tar xf $CWD/linux-${VERSION}.tar.?z || exit 1
+ echo "Making /usr/src/linux symlink..."
+ ln -sf linux-* linux
+ cd linux-*
+ if [ -d $CWD/patches-${VERSION} ]; then
+ echo "Applying kernel patches in $CWD/patches-${VERSION} and copying patches to $PKG/usr/src/linux-${VERSION}..."
+ zcat $CWD/patches-${VERSION}/*.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
+ cp -a $CWD/patches-${VERSION}/*.gz .
+ fi
+ echo "Copying $CWD/kernel-configs/${KERNEL_CONFIG} to .config..."
+ cp -a $CWD/kernel-configs/${KERNEL_CONFIG} .config
+ echo "Fixing permissions/ownership..."
+ chown -R root:root .
+ find . \
+ \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+ -exec chmod 755 {} \+ -o \
+ \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
+ -exec chmod 644 {} \+
+) || exit 1
+
+# Kernel is now ready to configure. We will also build this kernel so that
+# the installed kernel source package is fully configured, and building an
+# out-of-tree module (such as the NVIDIA driver) won't require the user
+# to build the kernel sources first.
+( cd $PKG/usr/src/linux-${VERSION}
+ echo "Making oldconfig..."
+ make oldconfig
+ if [ ! -r $CWD/kernel-configs/config-generic${LOCALVERSION}-${VERSION}${LOCALVERSION}${CONFIG_SUFFIX} ]; then
+ echo "Saving new .config as: $CWD/kernel-configs/config-generic${LOCALVERSION}-${VERSION}${LOCALVERSION}${CONFIG_SUFFIX}"
+ cp -a .config $CWD/kernel-configs/config-generic${LOCALVERSION}-${VERSION}${LOCALVERSION}${CONFIG_SUFFIX}
+ fi
+
+ # If CONFIG_PREEMPT=y and CONFIG_PREEMPT_DYNAMIC=y, then set a default preempt
+ # mode (none, voluntary, or full):
+ if grep -wq CONFIG_PREEMPT=y .config ; then
+ if grep -wq CONFIG_PREEMPT_DYNAMIC=y .config ; then
+ # Sanity check:
+ if ! echo $CONFIG_PREEMPT_DEFAULT_MODE | grep -wq -e none -e voluntary -e full ; then
+ echo "ERROR: Invalid mode for CONFIG_PREEMPT_DEFAULT_MODE: $CONFIG_PREEMPT_DEFAULT_MODE"
+ exit 1
+ fi
+ echo "Setting default PREEMPT mode: $CONFIG_PREEMPT_DEFAULT_MODE"
+ sed -i "s/^int preempt_dynamic_mode = preempt_dynamic_full;$/int preempt_dynamic_mode = preempt_dynamic_$CONFIG_PREEMPT_DEFAULT_MODE;/g" kernel/sched/core.c
+ fi
+ fi
+
+ echo "Building kernel and modules (needed before clean for building NVIDIA to work)..."
+ make ${NUMJOBS} || exit 1
+ make ${NUMJOBS} modules || exit 1
+ echo "Cleaning up..."
+ make clean
+ # Make sure header files aren't missing...
+ make prepare
+ # Don't package the kernel in the sources:
+ find . -name "*Image" -exec rm "{}" \+
+ # No need for these:
+ rm -f .config.old .version
+ find . -name "*.cmd" -exec rm -f "{}" \+
+ rm .*.d
+ # Still some dotfiles laying around... probably fine though
+) || exit 1
+
+cd $PKG/usr/src/linux-${VERSION}
+# Use the version number found in the Makefile in the package name. This is not
+# always the same as the version in the source tarball's filename. For example,
+# linux-4.14.tar.xz will have 4.14.0 as the version in the Makefile:
+PACKAGE_VERSION=$(grep "^VERSION = " Makefile | rev | cut -f 1 -d ' ' | rev).$(grep "^PATCHLEVEL = " Makefile | rev | cut -f 1 -d ' ' | rev).$(grep "^SUBLEVEL = " Makefile | rev | cut -f 1 -d ' ' | rev)$(grep "^EXTRAVERSION = " Makefile | rev | cut -f 1 -d ' ' | rev)
+
+mkdir $PKG/install
+cat $CWD/slack-desc/slack-desc.kernel-source > $PKG/install/slack-desc
+
+# Make the package:
+cd $PKG
+/sbin/makepkg -l y -c n $TMP/kernel-source-$(echo ${PACKAGE_VERSION} | tr - _)$(echo ${LOCALVERSION} | tr - _)-noarch-$BUILD.txz
+