Step1: build with busybox.

Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>

package/opensbi/make.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/bash
+source $(dirname "$0")/../common.sh
+
+PKGNAME=opensbi
+PKGVERSION=1.6
+PKGSOURCE_DIR=opensbi
+PKGSOURCE=opensbi-1.6.tar.gz
+PKGURL=https://github.com/riscv-software-src/opensbi/archive/v1.6/opensbi-1.6.tar.gz
+
+PKGBUILDNAME=${PKGNAME}
+PKGBUILD_DIR=${BUILD_DIR}/${PKGBUILDNAME}-${PKGVERSION}
+
+echo "----> Building ${PKGBUILDNAME} ..."
+
+stamp_downloaded
+
+step_start extract
+mkdir -p ${PKGBUILD_DIR}
+gzip -d -c ${DL_DIR}/${PKGSOURCE_DIR}/${PKGSOURCE} | tar --strip-components=1 -C ${PKGBUILD_DIR} -xf -
+chmod -R +rw ${PKGBUILD_DIR}
+step_end extract
+
+stamp_patched
+
+stamp_configured
+
+step_start build
+eval "${TARGET_MAKE_ENV} CROSS_COMPILE=${CROSS_COMPILE}  PLATFORM=generic /usr/bin/make -j${MAXNUM_CPUS} -C ${PKGBUILD_DIR}"
+step_end build
+
+step_start install-image
+/usr/bin/install -m 0644 -D ${PKGBUILD_DIR}/build/platform/generic/firmware/fw_jump.bin ${IMAGES_DIR}/fw_jump.bin
+step_end install-image
+
+stamp_installed
+
+echo "<---- ${PKGBUILDNAME} build complete."