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-rw-r--r--.gitignore3
-rw-r--r--docs/gettingstarted/developers/cross_compile_macos.rst57
-rw-r--r--docs/gettingstarted/developers/index.rst1
-rwxr-xr-xextras/scripts/cross_compile_macos.sh74
-rw-r--r--extras/scripts/patches/macos_build_externals.patch17
5 files changed, 152 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
index 8535007bdb1..64a579e21a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -106,3 +106,6 @@ GTAGS
# No core files
**/core
+# extra scripts config
+/extras/scripts/.config/
+
diff --git a/docs/gettingstarted/developers/cross_compile_macos.rst b/docs/gettingstarted/developers/cross_compile_macos.rst
new file mode 100644
index 00000000000..932f86549f6
--- /dev/null
+++ b/docs/gettingstarted/developers/cross_compile_macos.rst
@@ -0,0 +1,57 @@
+.. _cross_compile_macos :
+
+Cross compilation on MacOS
+==========================
+
+This is a first attempt to support Cross compilation of VPP on MacOS for development (linting, completion, compile_commands.json)
+
+
+**Prerequisites**
+
+* You'll need to install the following packages
+
+.. code-block:: bash
+
+ pip3 install ply
+ brew install diffutils gnu-sed pkg-config ninja crosstool-ng
+
+* You'll also need to install ``gnu-ident 2.2.11`` to be able to ``make checkstyle``. You can get it from `GNU <https://www.gnu.org/prep/ftp.html>`_
+* You should link the binaries to make them available in your path with their original names e.g. :
+
+.. code-block:: bash
+
+ ln -s $(which gsed) /usr/local/bin/sed
+ ln -s $(which gindent) /usr/local/bin/indent
+ ln -s /usr/local/Cellar/diffutils/3.7/bin/diff /usr/local/bin/diff
+
+
+**Setup**
+
+* Create a `cross compile toolchain <https://crosstool-ng.github.io/>`_
+* Create a case sensitive volume and mount the toolchain in it e.g. in ``/Volumes/xchain``
+* Create a xchain.toolchain file with ``$VPP_DIR/extras/scripts/cross_compile_macos.sh conf /Volumes/xchan``
+
+For now we don't support e-build so dpdk, rdma, quicly won't be compiled as part of ``make build``
+
+To build with the toolchain do:
+
+.. code-block:: bash
+
+ $VPP_DIR/extras/scripts/cross_compile_macos.sh build
+
+
+To get the compile_commands.json do
+
+.. code-block:: bash
+
+ $VPP_DIR/extras/scripts/cross_compile_macos.sh cc
+ # >> ./build-root/build-vpp[_debug]-native/vpp/compile_commands.json
+
+
+
+This should build vpp on MacOS
+
+
+Good luck :)
+
+
diff --git a/docs/gettingstarted/developers/index.rst b/docs/gettingstarted/developers/index.rst
index 2d27da99ba8..93f4e33ee7f 100644
--- a/docs/gettingstarted/developers/index.rst
+++ b/docs/gettingstarted/developers/index.rst
@@ -40,3 +40,4 @@ The Developers section covers the following areas:
buildwireshark
punt
quic_plugin
+ cross_compile_macos.rst
diff --git a/extras/scripts/cross_compile_macos.sh b/extras/scripts/cross_compile_macos.sh
new file mode 100755
index 00000000000..998d914cf88
--- /dev/null
+++ b/extras/scripts/cross_compile_macos.sh
@@ -0,0 +1,74 @@
+#!/bin/bash
+
+VPP_DIR=$(dirname ${BASH_SOURCE[0]})/../..
+VPP_TOOLCHAIN_FILE=$VPP_DIR/extras/scripts/.config/macos.toolchain
+BUILD_PATCH=$VPP_DIR/extras/scripts/patches/macos_build_externals.patch
+VPP_EXPORT_CC=""
+
+function help() {
+cat << __EOF__
+Usage: $0 [COMMAND]
+conf <dir> create the configuration file
+ with the give cross-toolchain directory
+build run Macos <make build>
+build-release run Macos <make build-release>
+compile_commands Generate compile_commands.json
+__EOF__
+}
+
+function create_toolchain_file () {
+ if [ x$1 = x ]; then
+ echo "Please specify the cross toolchain directory"
+ exit 1
+ fi
+ XCHAIN=$1
+ if [ ! -e ]; then
+ mkdir -p $VPP_DIR/extras/scripts/.config
+ echo "
+SET(CMAKE_SYSTEM_NAME Linux)
+SET(CMAKE_SYSTEM_VERSION 1)
+
+# specify the cross compiler
+SET(CMAKE_C_COMPILER $XCHAIN/x86_64-ubuntu16.04-linux-gnu/bin/x86_64-ubuntu16.04-linux-gnu-gcc)
+SET(CMAKE_CXX_COMPILER $XCHAIN/x86_64-ubuntu16.04-linux-gnu/bin/x86_64-ubuntu16.04-linux-gnu-g++)
+
+# where is the target environment
+SET(CMAKE_FIND_ROOT_PATH $XCHAIN/x86_64-ubuntu16.04-linux-gnu $XCHAIN/x86_64-ubuntu16.04-linux-gnu/x86_64-ubuntu16.04-linux-gnu/sysroot/)
+
+SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
+SET(CMAKE_SYSTEM_PROCESSOR x86_64)
+# This is needed to build vpp-papi
+SET(PYTHON_EXECUTABLE /usr/local/bin/python)" | tee $VPP_TOOLCHAIN_FILE > /dev/null
+ echo "Configration file created"
+ echo "please edit $VPP_TOOLCHAIN_FILE"
+ else
+ echo "configuration file already exists"
+ echo "please edit $VPP_TOOLCHAIN_FILE"
+ fi
+}
+
+function vpp_make () {
+ cd $VPP_DIR ; git apply $BUILD_PATCH
+ trap "cd $VPP_DIR ; git apply -R $BUILD_PATCH" EXIT
+ export VPP_EXTRA_CMAKE_ARGS="-DCMAKE_TOOLCHAIN_FILE=${VPP_TOOLCHAIN_FILE} -DCMAKE_EXPORT_COMPILE_COMMANDS=${VPP_EXPORT_CC}" ; make -C $VPP_DIR $1
+}
+
+case $1 in
+ conf)
+ create_toolchain_file $2
+ ;;
+ build)
+ vpp_make build
+ ;;
+ build-release)
+ vpp_make build-release
+ ;;
+ compile_commands)
+ VPP_EXPORT_CC=ON vpp_make build
+ echo "compile_commands.json should be generated"
+ echo "check $VPP_DIR/build-root/build-vpp_debug-native/vpp/compile_commands.json"
+ ;;
+ *)
+ help
+ ;;
+esac \ No newline at end of file
diff --git a/extras/scripts/patches/macos_build_externals.patch b/extras/scripts/patches/macos_build_externals.patch
new file mode 100644
index 00000000000..ec1aeb3d4ec
--- /dev/null
+++ b/extras/scripts/patches/macos_build_externals.patch
@@ -0,0 +1,17 @@
+diff --git a/build/external/Makefile b/build/external/Makefile
+index e5dff3c43..ffd0a6476 100644
+--- a/build/external/Makefile
++++ b/build/external/Makefile
+@@ -45,10 +45,10 @@ clean:
+ @rm -rf $(B) $(I)
+
+ .PHONY: install
+-install: dpdk-install rdma-core-install quicly-install
++install:
+
+ .PHONY: config
+-config: dpdk-config rdma-core-config
++config:
+
+ ##############################################################################
+ # .deb packaging