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-rwxr-xr-xscripts/cross-build.sh189
1 files changed, 189 insertions, 0 deletions
diff --git a/scripts/cross-build.sh b/scripts/cross-build.sh
new file mode 100755
index 0000000..d5778f5
--- /dev/null
+++ b/scripts/cross-build.sh
@@ -0,0 +1,189 @@
+#!/bin/bash
+#
+# Example:
+# env BUILD_TARGET=mips ./scripts/cross-build.sh
+#
+set -eo pipefail
+
+CROSS_ROOT="${CROSS_ROOT:-/opt/cross}"
+STAGE_ROOT="${STAGE_ROOT:-/opt/stage}"
+BUILD_ROOT="${BUILD_ROOT:-/opt/build}"
+BUILD_TARGET="${BUILD_TARGET:-x86_64}"
+
+ZLIB_VERSION="${ZLIB_VERSION:-1.3}"
+JSON_C_VERSION="${JSON_C_VERSION:-0.16}"
+MBEDTLS_VERSION="${MBEDTLS_VERSION:-2.28.1}"
+LIBUV_VERSION="${LIBUV_VERSION:-1.44.2}"
+LIBWEBSOCKETS_VERSION="${LIBWEBSOCKETS_VERSION:-4.3.2}"
+
+build_zlib() {
+ echo "=== Building zlib-${ZLIB_VERSION} (${TARGET})..."
+ curl -fSsLo- "https://zlib.net/zlib-${ZLIB_VERSION}.tar.gz" | tar xz -C "${BUILD_DIR}"
+ pushd "${BUILD_DIR}"/zlib-"${ZLIB_VERSION}"
+ env CHOST="${TARGET}" ./configure --static --archs="-fPIC" --prefix="${STAGE_DIR}"
+ make -j"$(nproc)" install
+ popd
+}
+
+build_json-c() {
+ echo "=== Building json-c-${JSON_C_VERSION} (${TARGET})..."
+ curl -fSsLo- "https://s3.amazonaws.com/json-c_releases/releases/json-c-${JSON_C_VERSION}.tar.gz" | tar xz -C "${BUILD_DIR}"
+ pushd "${BUILD_DIR}/json-c-${JSON_C_VERSION}"
+ rm -rf build && mkdir -p build && cd build
+ cmake -DCMAKE_TOOLCHAIN_FILE="${BUILD_DIR}/cross-${TARGET}.cmake" \
+ -DCMAKE_BUILD_TYPE=RELEASE \
+ -DCMAKE_INSTALL_PREFIX="${STAGE_DIR}" \
+ -DBUILD_SHARED_LIBS=OFF \
+ -DBUILD_TESTING=OFF \
+ -DDISABLE_THREAD_LOCAL_STORAGE=ON \
+ ..
+ make -j"$(nproc)" install
+ popd
+}
+
+build_mbedtls() {
+ echo "=== Building mbedtls-${MBEDTLS_VERSION} (${TARGET})..."
+ curl -fSsLo- "https://github.com/ARMmbed/mbedtls/archive/v${MBEDTLS_VERSION}.tar.gz" | tar xz -C "${BUILD_DIR}"
+ pushd "${BUILD_DIR}/mbedtls-${MBEDTLS_VERSION}"
+ rm -rf build && mkdir -p build && cd build
+ cmake -DCMAKE_TOOLCHAIN_FILE="${BUILD_DIR}/cross-${TARGET}.cmake" \
+ -DCMAKE_BUILD_TYPE=RELEASE \
+ -DCMAKE_INSTALL_PREFIX="${STAGE_DIR}" \
+ -DENABLE_TESTING=OFF \
+ ..
+ make -j"$(nproc)" install
+ popd
+}
+
+build_libuv() {
+ echo "=== Building libuv-${LIBUV_VERSION} (${TARGET})..."
+ curl -fSsLo- "https://dist.libuv.org/dist/v${LIBUV_VERSION}/libuv-v${LIBUV_VERSION}.tar.gz" | tar xz -C "${BUILD_DIR}"
+ pushd "${BUILD_DIR}/libuv-v${LIBUV_VERSION}"
+ ./autogen.sh
+ env CFLAGS=-fPIC ./configure --disable-shared --enable-static --prefix="${STAGE_DIR}" --host="${TARGET}"
+ make -j"$(nproc)" install
+ popd
+}
+
+install_cmake_cross_file() {
+ cat << EOF > "${BUILD_DIR}/cross-${TARGET}.cmake"
+SET(CMAKE_SYSTEM_NAME $1)
+
+set(CMAKE_C_COMPILER "${TARGET}-gcc")
+set(CMAKE_CXX_COMPILER "${TARGET}-g++")
+
+set(CMAKE_FIND_ROOT_PATH "${STAGE_DIR}")
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+set(OPENSSL_USE_STATIC_LIBS TRUE)
+EOF
+}
+
+build_libwebsockets() {
+ echo "=== Building libwebsockets-${LIBWEBSOCKETS_VERSION} (${TARGET})..."
+ curl -fSsLo- "https://github.com/warmcat/libwebsockets/archive/v${LIBWEBSOCKETS_VERSION}.tar.gz" | tar xz -C "${BUILD_DIR}"
+ pushd "${BUILD_DIR}/libwebsockets-${LIBWEBSOCKETS_VERSION}"
+ sed -i 's/ websockets_shared//g' cmake/libwebsockets-config.cmake.in
+ sed -i '/PC_OPENSSL/d' lib/tls/CMakeLists.txt
+ rm -rf build && mkdir -p build && cd build
+ cmake -DCMAKE_TOOLCHAIN_FILE="${BUILD_DIR}/cross-${TARGET}.cmake" \
+ -DCMAKE_BUILD_TYPE=RELEASE \
+ -DCMAKE_INSTALL_PREFIX="${STAGE_DIR}" \
+ -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
+ -DCMAKE_EXE_LINKER_FLAGS="-static" \
+ -DLWS_WITHOUT_TESTAPPS=ON \
+ -DLWS_WITH_MBEDTLS=ON \
+ -DLWS_WITH_LIBUV=ON \
+ -DLWS_STATIC_PIC=ON \
+ -DLWS_WITH_SHARED=OFF \
+ -DLWS_UNIX_SOCK=ON \
+ -DLWS_IPV6=ON \
+ -DLWS_ROLE_RAW_FILE=OFF \
+ -DLWS_WITH_HTTP2=OFF \
+ -DLWS_WITH_HTTP_BASIC_AUTH=OFF \
+ -DLWS_WITH_UDP=OFF \
+ -DLWS_WITHOUT_CLIENT=ON \
+ -DLWS_WITH_LEJP=OFF \
+ -DLWS_WITH_LEJP_CONF=OFF \
+ -DLWS_WITH_LWSAC=OFF \
+ -DLWS_WITH_SEQUENCER=OFF \
+ ..
+ make -j"$(nproc)" install
+ popd
+}
+
+build_ttyd() {
+ echo "=== Building ttyd (${TARGET})..."
+ rm -rf build && mkdir -p build && cd build
+ cmake -DCMAKE_TOOLCHAIN_FILE="${BUILD_DIR}/cross-${TARGET}.cmake" \
+ -DCMAKE_INSTALL_PREFIX="${STAGE_DIR}" \
+ -DCMAKE_FIND_LIBRARY_SUFFIXES=".a" \
+ -DCMAKE_C_FLAGS="-Os -ffunction-sections -fdata-sections -fno-unwind-tables -fno-asynchronous-unwind-tables -flto" \
+ -DCMAKE_EXE_LINKER_FLAGS="-static -no-pie -Wl,-s -Wl,-Bsymbolic -Wl,--gc-sections" \
+ -DCMAKE_BUILD_TYPE=RELEASE \
+ ..
+ make install
+}
+
+build() {
+ TARGET="$1"
+ ALIAS="$2"
+ STAGE_DIR="${STAGE_ROOT}/${TARGET}"
+ BUILD_DIR="${BUILD_ROOT}/${TARGET}"
+ MUSL_CC_URL="https://github.com/tsl0922/musl-toolchains/releases/download/2021-11-23"
+ COMPONENTS="1"
+ SYSTEM="Linux"
+
+ if [ "$ALIAS" = "win32" ]; then
+ COMPONENTS=2
+ SYSTEM="Windows"
+ fi
+
+ echo "=== Installing toolchain ${ALIAS} (${TARGET})..."
+
+ mkdir -p "${CROSS_ROOT}" && export PATH="${PATH}:/opt/cross/bin"
+ curl -fSsLo- "${MUSL_CC_URL}/${TARGET}-cross.tgz" | tar xz -C "${CROSS_ROOT}" --strip-components=${COMPONENTS}
+
+ echo "=== Building target ${ALIAS} (${TARGET})..."
+
+ rm -rf "${STAGE_DIR}" "${BUILD_DIR}"
+ mkdir -p "${STAGE_DIR}" "${BUILD_DIR}"
+ export PKG_CONFIG_PATH="${STAGE_DIR}/lib/pkgconfig"
+
+ install_cmake_cross_file ${SYSTEM}
+
+ build_zlib
+ build_json-c
+ build_libuv
+ build_mbedtls
+ build_libwebsockets
+ build_ttyd
+}
+
+case ${BUILD_TARGET} in
+ amd64) BUILD_TARGET="x86_64" ;;
+ arm64) BUILD_TARGET="aarch64" ;;
+ armv7) BUILD_TARGET="armv7l" ;;
+esac
+
+case ${BUILD_TARGET} in
+ i686|x86_64|aarch64|mips|mipsel|mips64|mips64el|s390x)
+ build "${BUILD_TARGET}-linux-musl" "${BUILD_TARGET}"
+ ;;
+ arm)
+ build "${BUILD_TARGET}-linux-musleabi" "${BUILD_TARGET}"
+ ;;
+ armhf)
+ build arm-linux-musleabihf "${BUILD_TARGET}"
+ ;;
+ armv7l)
+ build armv7l-linux-musleabihf "${BUILD_TARGET}"
+ ;;
+ win32)
+ build x86_64-w64-mingw32 "${BUILD_TARGET}"
+ ;;
+ *)
+ echo "unknown cross target: ${BUILD_TARGET}" && exit 1
+esac