From c5e81b59b43424cad11b89a9f91a98f6fbd51b90 Mon Sep 17 00:00:00 2001
From: Fabio Belavenuto <belavenuto@gmail.com>
Date: Wed, 18 Jan 2023 09:01:25 -0300
Subject: [PATCH] Adding kernel sources to docker compiler image

---
 docker/syno-compiler/Dockerfile.template | 17 +++++++++++++----
 docker/syno-compiler/build.sh            | 18 ++++++++++++++++--
 docker/syno-compiler/files/opt/do.sh     |  7 +++++--
 3 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/docker/syno-compiler/Dockerfile.template b/docker/syno-compiler/Dockerfile.template
index e056516e..fbb1fb76 100644
--- a/docker/syno-compiler/Dockerfile.template
+++ b/docker/syno-compiler/Dockerfile.template
@@ -14,6 +14,13 @@ RUN for V in ${PLATFORMS}; do \
           "usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/lib/modules/DSM-${TOOLKIT_VER}" && \
         echo "Extracting ${PLATFORM}-toolchain.txz" && \
         tar -xaf "/cache/${PLATFORM}-toolchain.txz" -C "/opt/${PLATFORM}" --strip-components=1; \
+        KVER_MAJOR="`echo ${KVER} | rev | cut -d. -f2- | rev`"; \
+        if [ ! -d "/opt/linux-${KVER_MAJOR}.x" -a -f "/cache/linux-${KVER_MAJOR}.x.txz" ]; then \
+          echo "Extracting linux-${KVER_MAJOR}.x.txz" && \
+          tar -xaf "/cache/linux-${KVER_MAJOR}.x.txz" -C "/opt"; \
+          rm -rf /opt/${PLATFORM}/source && \
+          ln -s /opt/linux-${KVER_MAJOR}.x /opt/${PLATFORM}/source; \
+        fi; \
       done; \
     done
 
@@ -22,20 +29,22 @@ FROM debian:8-slim
 ENV SHELL=/bin/bash \
     ARCH=x86_64
 
+COPY --from=stage /opt /opt
 RUN apt update --yes && \
     apt install --yes --no-install-recommends --no-install-suggests --allow-unauthenticated \
       ca-certificates nano curl bc kmod git gettext texinfo autopoint gawk sudo \
       build-essential make ncurses-dev libssl-dev autogen automake pkg-config libtool xsltproc gperf && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* && \
-    useradd --home-dir /input --no-create-home --shell /bin/bash --uid 1000 arpl && \
-    echo "arpl ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/arpl
+    useradd --create-home --shell /bin/bash --uid 1000 --user-group arpl && \
+    echo "arpl ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/arpl && \
+    chown 1000:1000 -R /opt && \
+    mkdir /output && chown 1000:1000 /output
 
-COPY --from=stage /opt /opt
 COPY files/ /
 
+USER arpl
 WORKDIR /input
 VOLUME /input /output
-USER arpl
 
 ENTRYPOINT ["/opt/do.sh"]
diff --git a/docker/syno-compiler/build.sh b/docker/syno-compiler/build.sh
index 07c19e94..65e0c1d4 100755
--- a/docker/syno-compiler/build.sh
+++ b/docker/syno-compiler/build.sh
@@ -25,6 +25,8 @@ function prepare() {
   URLS["r1000"]="https://global.download.synology.com/download/ToolChain/toolchain/${TOOLCHAIN_VER}/AMD%20x86%20Linux%204.4.180%20%28r1000%29/r1000-${GCCLIB_VER}_x86_64-GPL.txz"
   URLS["epyc7002"]="https://global.download.synology.com/download/ToolChain/toolchain/${TOOLCHAIN_VER}/AMD%20x86%20Linux%20Linux%205.10.55%20%28epyc7002%29/epyc7002-${GCCLIB_VER}_x86_64-GPL.txz"
 
+  URLS["3.10.x"]="https://ufpr.dl.sourceforge.net/project/dsgpl/Synology%20NAS%20GPL%20Source/25426branch/bromolow-source/linux-3.10.x.txz"
+  
   # Read platforms/kerver version
   echo "Reading platforms"
   declare -A PLATFORMS
@@ -40,7 +42,7 @@ function prepare() {
     echo -n "Checking ${CACHE_DIR}/ds.${PLATFORM}-${TOOLKIT_VER}.dev.txz... "
     if [ ! -f "${CACHE_DIR}/ds.${PLATFORM}-${TOOLKIT_VER}.dev.txz" ]; then
       URL="https://global.download.synology.com/download/ToolChain/toolkit/${TOOLKIT_VER}/${PLATFORM}/ds.${PLATFORM}-${TOOLKIT_VER}.dev.txz"
-      echo "Downloading ${URL}"
+      echo -e "No\nDownloading ${URL}"
       curl -L "${URL}" -o "${CACHE_DIR}/ds.${PLATFORM}-${TOOLKIT_VER}.dev.txz"
     else
       echo "OK"
@@ -48,13 +50,25 @@ function prepare() {
     echo -n "Checking ${CACHE_DIR}/${PLATFORM}-toolchain.txz... "
     if [ ! -f "${CACHE_DIR}/${PLATFORM}-toolchain.txz" ]; then
       URL=${URLS["${PLATFORM}"]}
-      echo "Downloading ${URL}"
+      echo -e "No\nDownloading ${URL}"
       curl -L "${URL}" -o "${CACHE_DIR}/${PLATFORM}-toolchain.txz"
     else
       echo "OK"
     fi
   done
 
+  for KERNEL in 3.10.x 4.4.x 5.10.x; do
+    URL=${URLS["${KERNEL}"]}
+    [ -z "${URL}" ] && continue
+    echo -n "Checking ${CACHE_DIR}/linux-${KERNEL}.txz... "
+    if [ ! -f "${CACHE_DIR}/linux-${KERNEL}.txz" ]; then
+      echo -e "No\nDownloading ${URL}"
+      curl -L "${URL}" -o "${CACHE_DIR}/linux-${KERNEL}.txz"
+    else
+      echo "OK"
+    fi
+  done
+
   # Generate Dockerfile
   echo "Generating Dockerfile"
   cp Dockerfile.template Dockerfile
diff --git a/docker/syno-compiler/files/opt/do.sh b/docker/syno-compiler/files/opt/do.sh
index 4ec4cd48..60b03966 100755
--- a/docker/syno-compiler/files/opt/do.sh
+++ b/docker/syno-compiler/files/opt/do.sh
@@ -18,12 +18,15 @@ function export-vars() {
   export ARCH=x86_64
   export CC="x86_64-pc-linux-gnu-gcc"
   export LD="x86_64-pc-linux-gnu-ld"
-  export PATH="/opt/${1}/bin:${PATH}"
+  echo "export PATH=\"/opt/${1}/bin:${PATH}\"" | \
+    sudo tee /etc/profile.d/path.sh >/dev/null
+  sudo chmod +x /etc/profile.d/path.sh
 }
 
 ###############################################################################
 function shell() {
-  #cp /opt/${2}/build/System.map /input
+  cp -fv /opt/${2}/build/.config /opt/${2}/source/
+  cp -fv /opt/${2}/build/System.map /opt/${2}/source/
   export-vars $2
   shift 2
   bash -l $@