From cc7d80be13929fa0e146848e813837e339d5891f Mon Sep 17 00:00:00 2001
From: Riyaz Faizullabhoy <riyaz.faizullabhoy@docker.com>
Date: Tue, 21 Mar 2017 09:59:40 -0700
Subject: [PATCH] wireguard: include Dockerfile and kernel debug config for
 build

Signed-off-by: Riyaz Faizullabhoy <riyaz.faizullabhoy@docker.com>
---
 .../wireguard/kernel-wireguard/Dockerfile     | 53 +++++++++++++++++++
 .../kernel-wireguard/kernel_config.debug      | 26 +++++++++
 2 files changed, 79 insertions(+)
 create mode 100644 projects/wireguard/kernel-wireguard/Dockerfile
 create mode 100644 projects/wireguard/kernel-wireguard/kernel_config.debug

diff --git a/projects/wireguard/kernel-wireguard/Dockerfile b/projects/wireguard/kernel-wireguard/Dockerfile
new file mode 100644
index 000000000..3372f38e6
--- /dev/null
+++ b/projects/wireguard/kernel-wireguard/Dockerfile
@@ -0,0 +1,53 @@
+FROM mobylinux/alpine-build-kernel:0e893fbf6fa7638d2f23354de03ea11017bb8065@sha256:3ef3f9d11f0802b759dbd9c43a7706cf0ec37263c99ae90e2b10c29ea85739fa
+
+ARG KERNEL_VERSION
+ARG DEBUG=0
+
+ENV KERNEL_SOURCE=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.xz
+
+RUN curl -fsSL -o linux-${KERNEL_VERSION}.tar.xz ${KERNEL_SOURCE}
+
+RUN cat linux-${KERNEL_VERSION}.tar.xz | tar --absolute-names -xJ &&  mv /linux-${KERNEL_VERSION} /linux
+
+COPY kernel_config /linux/arch/x86/configs/x86_64_defconfig
+COPY kernel_config.debug /linux/debug_config
+
+RUN if [ $DEBUG -ne "0" ]; then \
+    sed -i 's/CONFIG_PANIC_ON_OOPS=y/# CONFIG_PANIC_ON_OOPS is not set/' /linux/arch/x86/configs/x86_64_defconfig; \
+    cat /linux/debug_config >> /linux/arch/x86/configs/x86_64_defconfig; \
+    fi
+
+# Apply local patches
+COPY patches-4.9 /patches
+RUN cd /linux && \
+    set -e && for patch in /patches/*.patch; do \
+        echo "Applying $patch"; \
+        patch -p1 < "$patch"; \
+    done
+
+RUN cd /linux && \
+    make defconfig && \
+    make oldconfig && \
+    make -j "$(getconf _NPROCESSORS_ONLN)" KCFLAGS="-fno-pie"
+RUN cd /linux && \
+    make INSTALL_MOD_PATH=/tmp/kernel-modules modules_install && \
+    ( DVER=$(basename $(find /tmp/kernel-modules/lib/modules/ -mindepth 1 -maxdepth 1)) && \
+      cd /tmp/kernel-modules/lib/modules/$DVER && \
+      rm build source && \
+      ln -s /usr/src/linux-headers-$DVER build ) && \
+    mkdir -p /tmp/kernel-headers/usr && \
+    make INSTALL_HDR_PATH=/tmp/kernel-headers/usr headers_install && \
+    ( cd /tmp/kernel-headers && tar cf /kernel-headers.tar usr ) && \
+    ( cd /tmp/kernel-modules && tar cf /kernel-modules.tar lib ) && \
+    cp vmlinux arch/x86_64/boot/bzImage /
+
+RUN DVER=$(basename $(find /tmp/kernel-modules/lib/modules/ -mindepth 1 -maxdepth 1)) && \
+    dir=/tmp/usr/src/linux-headers-$DVER && \
+    mkdir -p $dir && \
+    cp /linux/.config $dir && \
+    cd /linux && \
+    cp -a include "$dir" && \
+    mkdir -p "$dir"/arch/x86 && cp -a arch/x86/include "$dir"/arch/x86/ && \
+    ( cd /tmp && tar cf /kernel-dev.tar usr/src )
+
+RUN printf "KERNEL_SOURCE=${KERNEL_SOURCE}\n" > /kernel-source-info
diff --git a/projects/wireguard/kernel-wireguard/kernel_config.debug b/projects/wireguard/kernel-wireguard/kernel_config.debug
new file mode 100644
index 000000000..17b14daca
--- /dev/null
+++ b/projects/wireguard/kernel-wireguard/kernel_config.debug
@@ -0,0 +1,26 @@
+
+
+## MOBY DEBUG OPTIONS ##
+
+CONFIG_LOCKDEP=y
+CONFIG_FRAME_POINTER=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEBUG_TIMEKEEPING=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_MUTEXES=y
+CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_LOCK_STAT=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_PROVE_RCU=y
+CONFIG_RCU_TRACE=y
+CONFIG_KGDB=y
+CONFIG_KGDB_SERIAL_CONSOLE=y
+CONFIG_KGDBOC=y
+CONFIG_DEBUG_RODATA_TEST=y
+CONFIG_DEBUG_WX=y