compile with clang-5.0, clang-6.0 or Debian's unstable clang-7

Documentation/Usage.md

@@ -9,10 +9,10 @@ The script takes these three arguments:
 `./scripts/compile-kernel.sh <repository> <config> <compiler>`
 
 For example, to build the current main-line kernel with the default kernel
-configuration and clang compiler, run:
+configuration and clang-5.0 compiler, run:
 
 ```
-./scripts/compile-kernel.sh torvalds defconfig clang
+./scripts/compile-kernel.sh torvalds defconfig clang-5.0
 ```
 
 For other help, use `./scripts/compile-kernel.sh --help`.

docker/kernel-clang-6.0/Dockerfile

@@ -0,0 +1,17 @@
+# Copyright (C) Lukas Bulwahn, BMW Car IT GmbH
+# SPDX-License-Identifier: GPL-2.0
+FROM debian:buster
+
+LABEL maintainer="Lukas Bulwahn <lukas.bulwahn@gmail.com>"
+
+# Install tools needed for kernel build and clang compiler
+RUN apt-get update && apt-get install --no-install-recommends -y \
+	bc \
+	bison \
+	bsdmainutils \
+	clang-6.0 \
+	flex \
+	libelf-dev \
+	libssl-dev \
+	make \
+	&& rm -rf /var/lib/apt/lists/*

docker/kernel-clang-7-llvm-snapshot/Dockerfile

@@ -0,0 +1,25 @@
+# Copyright (C) Lukas Bulwahn, BMW Car IT GmbH
+# SPDX-License-Identifier: GPL-2.0
+FROM debian:buster
+
+LABEL maintainer="Lukas Bulwahn <lukas.bulwahn@gmail.com>"
+
+# Install tools needed for kernel build and clang compiler
+RUN apt-get update && apt-get install --no-install-recommends -y \
+	bc \
+	bison \
+	bsdmainutils \
+	ca-certificates \
+	gnupg \
+	gnupg-utils \
+	flex \
+	libelf-dev \
+	libssl-dev \
+	make \
+	wget
+
+RUN echo "deb http://apt.llvm.org/unstable/ llvm-toolchain main" >> /etc/apt/sources.list \
+	&& wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add - \
+	&& apt-get update \
+	&& apt-get install --no-install-recommends -y clang-7 \
+	&& rm -rf /var/lib/apt/lists/*

docker/kernel-clang-7/Dockerfile

@@ -0,0 +1,17 @@
+# Copyright (C) Lukas Bulwahn, BMW Car IT GmbH
+# SPDX-License-Identifier: GPL-2.0
+FROM debian:sid
+
+LABEL maintainer="Lukas Bulwahn <lukas.bulwahn@gmail.com>"
+
+# Install tools needed for kernel build and clang compiler
+RUN apt-get update && apt-get install --no-install-recommends -y \
+	bc \
+	bison \
+	bsdmainutils \
+	clang-7 \
+	flex \
+	libelf-dev \
+	libssl-dev \
+	make \
+	&& rm -rf /var/lib/apt/lists/*

scripts/build-docker.sh

@@ -8,10 +8,9 @@
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
-echo 'Building the Docker image "kernel-gcc"'
-cd "$SCRIPT_DIR/../docker/kernel-gcc"
-docker build -t kernel-gcc .
-
-echo 'Building the Docker image "kernel-clang"'
-cd "$SCRIPT_DIR/../docker/kernel-clang"
-docker build -t kernel-clang .
+for DOCKER_IMAGE in $(find $SCRIPT_DIR/../docker -mindepth 1 -maxdepth 1 -type d -printf "%f\n")
+do
+	echo Building the Docker image "$DOCKER_IMAGE"
+	cd "$SCRIPT_DIR/../docker/$DOCKER_IMAGE"
+	docker build -t $DOCKER_IMAGE .
+done

scripts/compile-kernel.sh

@@ -14,7 +14,7 @@ usage() {
 	echo
         echo "    <repository> = torvalds | stable | next"
 	echo "    <config> = allnoconfig | allmodconfig | allyesconfig | defconfig | randconfig"
-	echo "    <compiler> = gcc | clang"
+	echo "    <compiler> = gcc | clang-5.0 | clang-6.0 | clang-7"
 }
 
 # Provide help if requested
@@ -83,12 +83,12 @@ esac
 # Check third argument and set COMPILER
 
 case "$3" in
-	gcc | clang)
+	gcc | clang-5.0 | clang-6.0 | clang-7)
 		COMPILER=$3
 		;;
 	*)
 		echo "Error: Invalid compiler: $3"
-		echo 'The compiler must be either "gcc" or "clang"'
+		echo 'The compiler must be "gcc", "clang-5.0", "clang-6.0" or "clang-7"'
 		exit 1
 		;;
 esac
@@ -102,13 +102,13 @@ case "$COMPILER" in
 			kernel-gcc \
 			/bin/sh -c "cd linux && make clean && make $KERNEL_CONFIG && make -j32"
 		;;
-	clang)
+	clang-5.0 | clang-6.0 | clang-7)
 		docker run \
 			-v "$KERNEL_SRC_DIR:/linux/" \
-			kernel-clang \
+			kernel-$COMPILER \
 			/bin/sh -c "cd linux && \
-				make CC=clang-5.0 clean && \
-				make HOSTCC=clang-5.0 $KERNEL_CONFIG && \
-				make -j32 HOSTCC=clang-5.0 CC=clang-5.0"
+				make CC=$COMPILER clean && \
+				make HOSTCC=$COMPILER $KERNEL_CONFIG && \
+				make -j32 HOSTCC=$COMPILER CC=$COMPILER"
 		;;
 esac