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#!/bin/bash
# In order to cross-compile node for Android using NDK, run:
# source android-configure <path_to_ndk> [arch]
#
# By running android-configure with source, will allow environment variables to
# be persistent in current session. This is useful for installing native node
# modules with npm. Also, don't forget to set the arch in npm config using
# 'npm config set arch=<arch>'
if [ $# -ne 3 ]; then
echo "$0 should have 3 parameters: ndk_path, target_arch and sdk_version"
return 1
fi
NDK_PATH=$1
ARCH="$2"
ANDROID_SDK_VERSION=$3
if [ $ANDROID_SDK_VERSION -lt 23 ]; then
echo "$ANDROID_SDK_VERSION should equal or later than 23(Android 6.0)"
fi
CC_VER="4.9"
case $ARCH in
arm)
DEST_CPU="arm"
TOOLCHAIN_NAME="armv7-linux-androideabi"
;;
x86)
DEST_CPU="ia32"
TOOLCHAIN_NAME="i686-linux-android"
;;
x86_64)
DEST_CPU="x64"
TOOLCHAIN_NAME="x86_64-linux-android"
ARCH="x64"
;;
arm64|aarch64)
DEST_CPU="arm64"
TOOLCHAIN_NAME="aarch64-linux-android"
ARCH="arm64"
;;
*)
echo "Unsupported architecture provided: $ARCH"
return 1
;;
esac
HOST_OS="linux"
HOST_ARCH="x86_64"
export CC_host=$(command -v gcc)
export CXX_host=$(command -v g++)
host_gcc_version=$($CC_host --version | grep gcc | awk '{print $NF}')
major=$(echo $host_gcc_version | awk -F . '{print $1}')
minor=$(echo $host_gcc_version | awk -F . '{print $2}')
if [ -z $major ] || [ -z $minor ] || [ $major -lt 6 ] || ( [ $major -eq 6 ] && [ $minor -lt 3 ] ); then
echo "host gcc $host_gcc_version is too old, need gcc 6.3.0"
return 1
fi
SUFFIX="$TOOLCHAIN_NAME$ANDROID_SDK_VERSION"
TOOLCHAIN=$NDK_PATH/toolchains/llvm/prebuilt/$HOST_OS-$HOST_ARCH
export PATH=$TOOLCHAIN/bin:$PATH
export CC=$TOOLCHAIN/bin/$SUFFIX-clang
export CXX=$TOOLCHAIN/bin/$SUFFIX-clang++
GYP_DEFINES="target_arch=$ARCH"
GYP_DEFINES+=" v8_target_arch=$ARCH"
GYP_DEFINES+=" android_target_arch=$ARCH"
GYP_DEFINES+=" host_os=$HOST_OS OS=android"
export GYP_DEFINES
if [ -f "configure" ]; then
./configure \
--dest-cpu=$DEST_CPU \
--dest-os=android \
--without-snapshot \
--openssl-no-asm \
--cross-compiling
fi
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