Bash aliases to aid in kernel dev (the previous gist got deleted, sorry)

.bash_aliases

kgit-config() {
	git config user.name "Your name"
	git config user.email "your@email.com"
	git config commit.gpgsign false
	git config pull.rebase true
	
	git config sendemail.smtpServer "smtp.email.com"
	git config sendemail.smtpEncryption tls
	git config sendemail.smtpServerPort 587
	git config sendemail.smtpUser "your@email.com"
	git config sendemail.confirm "always"
	
	echo -e '#!/bin/bash
		
		patch=$(git show --format=email HEAD)
		./scripts/checkpatch.pl --show-types --strict --codespell - <<< "$patch"
	' | awk '{$1=$1};1' > .git/hooks/post-commit
	chmod u+x .git/hooks/post-commit
}

alias git-config-kernel=kgit-config


alias kpatch-check="git diff | ./scripts/checkpatch.pl --show-types --strict - "


kconfig() {
	case "$1" in
		"--def")
			make defconfig
			./scripts/kconfig/merge_config.sh .config \
				/home/yoojer/linux/common.config \
				/home/yoojer/linux/kvm.config
			;;

		"--fix")
			./scripts/kconfig/merge_config.sh .config \
				/home/yoojer/linux/common.config \
			;;

		"--virt")
			virtme-configkernel --arch=x86_64 --defconfig
			./scripts/kconfig/merge_config.sh .config \
				/home/yoojer/linux/common.config \
			;;

		"--debug")
			./scripts/kconfig/merge_config.sh .config \
				/home/yoojer/linux/common.config \
				/home/yoojer/linux/debug.config \
				/home/yoojer/linux/kvm.config
			;;

		*) echo "Pass either --def, --fix, --virt, or --debug."
			;;
	esac
}


alias kmake-all="make -j`nproc` all"


kemulate() {
	kernel="./arch/x86_64/boot/bzImage"
	stretch_image="/home/yoojer/linux/qemu/image/stretch.img"

	qemu_args="$@"

	cmd_line="console=ttyS0 root=/dev/sda earlyprintk=serial "
	cmd_line+="net.ifnames=0 nokaslr "

	if [[ "$1" == "--selinux" ]]; then
		cmd_line+="selinux=1"
		qemu_args="${qemu_args:9}"
	else
		cmd_line+="selinux=0"
	fi

	qemu-system-x86_64 \
		-m 4G \
		-smp 6 \
		-kernel "$kernel" \
		-append "$cmd_line" \
		-drive file=$stretch_image,format=raw \
		-net user,host=10.0.2.10,hostfwd=tcp:127.0.0.1:10021-:22 \
		-net nic,model=e1000 \
		-accel kvm \
		-cpu host\
		-nographic \
		-pidfile vm.pid \
		$qemu_args \
	2>&1 | tee vm.log
}


kemulate-one() {
	kernel="./arch/x86_64/boot/bzImage"
	stretch_image="/home/yoojer/linux/qemu/image/stretch.img"

	qemu_args="$@"

	cmd_line="console=ttyS0 root=/dev/sda earlyprintk=serial "
	cmd_line+="net.ifnames=0 nokaslr "

	if [[ "$1" == "--selinux" ]]; then
		cmd_line+="selinux=1"
		qemu_args="${qemu_args:9}"
	else
		cmd_line+="selinux=0"
	fi

	qemu-system-x86_64 \
		-m 4G \
		-smp 1 \
		-kernel "$kernel" \
		-append "$cmd_line" \
		-drive file=$stretch_image,format=raw \
		-net user,host=10.0.2.10,hostfwd=tcp:127.0.0.1:10021-:22 \
		-net nic,model=e1000 \
		-accel kvm \
		-cpu host\
		-nographic \
		-pidfile vm.pid \
		$qemu_args \
	2>&1 | tee vm.log
}


kemulate-virt() {
	kernel="./arch/x86_64/boot/bzImage"
	stretch_image="/home/yoojer/linux/qemu/image/stretch.img"

	qemu_args="$@"

	cmd_line="console=ttyS0 root=/dev/sda earlyprintk=serial "
	cmd_line+="net.ifnames=0 nokaslr "

	if [[ "$1" == "--selinux" ]]; then
		cmd_line+="selinux=1"
		qemu_args="${qemu_args:9}"
	else
		cmd_line+="selinux=0"
	fi

	virtme-run \
		--kdir . \
		--mods auto \
		--rw \
		--graphics \
		--qemu-opts \
			-m 4G \
			-smp 6 \
			-kernel "$kernel" \
			-append "$cmd_line" \
			-drive file=$stretch_image,format=raw \
			-net user,host=10.0.2.10,hostfwd=tcp:127.0.0.1:10021-:22 \
			-net nic,model=e1000 \
			-cpu host \
			-pidfile vm.pid \
			-vga virtio \
			-display gtk,gl=on \
			$qemu_args \
	2>&1 | tee vm.log
}


klogin() {
	ssh -i /home/yoojer/linux/qemu/image/stretch.id_rsa \
		-p 10021 -o "StrictHostKeyChecking no" root@localhost \
	2>&1 | tee ssh_op.log
}


syzkemu() {
	syzkaller_dir="/home/yoojer/linux/syzkaller"

	scp -P 10021 -i /home/yoojer/linux/qemu/image/stretch.id_rsa \
		$syzkaller_dir/bin/linux_amd64/syz-execprog \
		$syzkaller_dir/bin/linux_amd64/syz-executor \
		root@localhost:/root/syz/
}


ktrace-decode() {
	(./scripts/decode_stacktrace.sh vmlinux < "$1") > "$2"
}


kget-maintainers() {
	./scripts/get_maintainer.pl "$@"
}


kunit-drm-run() {
	make ARCH=um mrproper

	./tools/testing/kunit/kunit.py run \
		--kunitconfig=drivers/gpu/drm/tests/ \
		--make_options=LLVM=1 \
		--kunitconfig=/home/yoojer/linux/kunit.config
}


kunit-drm-coverage() {
	make ARCH=um mrproper

	./tools/testing/kunit/kunit.py run \
		--kunitconfig=drivers/gpu/drm/tests/ \
		--make_options=CC=gcc-6 \
		--kunitconfig=/home/yoojer/linux/kunit.config

	lcov -t "kunit_tests" -o coverage.info -c -d .kunit/ \
		--gcov-tool=gcov-6

	genhtml -o /tmp/coverage_html coverage.info

	firefox /tmp/coverage_html/drivers/gpu/drm/index.html
}


ksend-patch() {
	# This is for sending a single patch with Thunderbird.
	# Prefer git send-email though, the existence of this
	# implies I already tried to skirt it, unsuccessfully.

	# Need argument for commit.
	if [ $# -eq 0 ]; then
		echo "Provide at least commit ID / branch."
		return 1
	fi

	# Create and check the patch.
	patch=$(git format-patch --stdout "$@")
	echo -e "$patch\n\n"

	./scripts/checkpatch.pl --show-types --strict -  <<< "$patch"
	if [ $? -ne 0 ]; then
		# Last command failed.
		return 1
	fi

	# Remove the first three lines, it is in mbox format but we are going for a GUI client.
	patch=$(sed -e '1,3d' <<< "$patch")

	if [[ ${patch:15:1} == "]" ]]; then  # Starts with "Subject: [PATCH]"
		# Save and remove the subject line.
		subject=${patch#"Subject: "}
		subject=${subject%%$'\n'*}

		patch=${patch#*$'\n'}
		patch="${patch:1}"  # Removes the remaining newline.
	else
		echo "Supplied multiple patches in one email. Don't do it."
		return 1
	fi

	thunderbird -compose "format='text',subject='$subject',body='$patch'" > /dev/null 2>&1 &
	disown
}

common.config

CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_FS=y
CONFIG_CONFIGFS_FS=y
CONFIG_SECURITYFS=y

debug.config

CONFIG_KCOV=y
CONFIG_KASAN=y
CONFIG_KASAN_INLINE=y
CONFIG_FTRACE=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_IRQSOFF_TRACER=y
CONFIG_PREEMPT_TRACER=y
CONFIG_SCHED_TRACER=y
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_FTRACE_MCOUNT_RECORD=y

kunit.config

CONFIG_VIRTIO_UML=y
CONFIG_UML_PCI_OVER_VIRTIO=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
CONFIG_GCOV=y

kvm.config

CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=y
CONFIG_KVM_AMD=y
CONFIG_DRM_VKMS=y
CONFIG_DRM_BOCHS=y