initial commit

.gitignore

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+config*
+build.log
+linux-modules*
+linux-headers*
+linux-image*
+linux-upstream*
+
+linux/
+old/
+

LICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org>

README.md

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+YACKS
+======
+
+YACS is yet another compile the kernel script. It is specifically developed for building a Ubuntu kernel and tested on Linux Mint.
+
+It uses the Ubuntu mainline kernel config from https://kernel.ubuntu.com/~kernel-ppa/mainline/ found in the Linux modules generic dep package for configuration of the kernel.
+Afterward it downloads the kernel sources (linux-rolling-lts branch) from the official sources: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/. 
+
+It modifies the kernel config for O3 optimizations and disables all debugging before compiling the sources.
+
+At last, it offers the installation of the new build kernel dep packages.
+
+## Requirements
+
+* installed git
+* installed classic gcc tool chain 
+
+## Constraints
+
+* It only compiles amd64 architecture source code.
+* Atm the Linux source code has to be checked out and available in the directory "linux" next to the script
+
+
+## Todo
+

buildKernel.sh

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+#!/usr/bin/env bash
+
+#set -x
+
+cd linux || exit 1
+printf "cleanup and checkout...\n"
+make distclean
+git reset --hard
+git clean -d -f
+git pull origin linux-rolling-lts || exit 1
+#git pull origin linux-rolling-stable || exit 1
+
+kernelVersionDir=$(git describe --tags --abbrev=0)
+kernelVersion=${kernelVersionDir#v} # remove character "v"
+cd ..
+
+kernelUrl=https://kernel.ubuntu.com/~kernel-ppa/mainline/${kernelVersionDir}
+kernelVersionLong=$(echo "$kernelVersion" | awk 'BEGIN {FS="."}{printf "%02d%02d%02d", $1, $2, $3;}')
+kernelFileName=$(curl -sL "$kernelUrl" | grep -iEo "linux-modules-${kernelVersion}-${kernelVersionLong}-generic_${kernelVersion}-${kernelVersionLong}.[0-9]{12}_amd64.deb" | head -1)
+kernelDeb=${kernelUrl}/amd64/${kernelFileName}
+if [[ ! -f "${kernelFileName}" ]]; then
+  printf "downloading kernel %s sources from Ubuntu...\n" "$kernelVersion}"
+  if ! wget -q "${kernelDeb}"; then
+    printf "Problem downloading kernel % sources from Ubuntu mainline: %s, exiting!\n" "$kernelVersion" "$kernelDeb"
+    exit 1
+  fi
+fi
+
+printf "extracting config...\n"
+dpkg-deb --fsys-tarfile "${kernelFileName}" | tar xOf - ./boot/config-"${kernelVersion}"-"${kernelVersionLong}"-generic >config-"${kernelVersion}" || exit 1
+
+cd linux || exit 1
+git log -1 --pretty=oneline
+echo "Do you wish to compile this kernel?"
+echo "$ARCH"
+select yn in "Yes" "No"; do
+  case $yn in
+    Yes) break ;;
+    No) exit 1 ;;
+  esac
+done
+
+cp ../config-"${kernelVersion}" .config
+
+export KCFLAGS="-march=native -mtune=native -O3 -pipe" KCPPFLAGS="-march=native -mtune=native -O3 -pipe"
+
+printf "modify kernel options...\n"
+scripts/config --enable DEBUG_INFO_NONE
+scripts/config --disable CONFIG_DEBUG_INFO
+scripts/config --disable CONFIG_DEBUG_INFO_DWARF5
+scripts/config --disable DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
+scripts/config --disable DEBUG_INFO_DWARF4
+scripts/config --disable DEBUG_INFO_DWARF5
+scripts/config --disable CONFIG_MODULE_SIG_ALL
+scripts/config --set-str SYSTEM_TRUSTED_KEYS ""
+scripts/config --set-str SYSTEM_REVOCATION_KEYS ""
+
+printf "modify optimizations in Makefile...\n"
+sed -i 's/-O2/-O3/g' Makefile
+
+printf "make clean build...\n"
+make clean
+make ARCH=x86_64 oldconfig
+time nice make -j$(($(nproc) + 1)) bindeb-pkg LOCALVERSION=-"$(whoami)"-"$(hostname)" >>../build.log || exit 1
+
+cd .. || exit 1
+printf "done!\nYou can install now using:\nsudo dpkg -i linux-*%s*.deb\n" "$(whoami)"
+