Step1: build with busybox.

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

package/linux-headers/make.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/bash
+source $(dirname "$0")/../common.sh
+
+PKGNAME=linux-headers
+PKGVERSION=6.12.47
+PKGSOURCE_DIR=linux
+PKGSOURCE=linux-6.12.47.tar.xz
+PKGURL=http://mirrors.ustc.edu.cn/kernel.org/linux/kernel/v6.x/linux-6.12.47.tar.xz
+
+PKGBUILDNAME=${PKGNAME}
+PKGBUILD_DIR=${BUILD_DIR}/${PKGBUILDNAME}-${PKGVERSION}
+
+echo "----> Building ${PKGBUILDNAME} ..."
+
+stamp_downloaded
+
+step_start extract
+mkdir -p ${PKGBUILD_DIR}
+xzcat ${DL_DIR}/${PKGSOURCE_DIR}/${PKGSOURCE} | tar --strip-components=1 -C ${PKGBUILD_DIR} -xf -
+chmod -R +rw ${PKGBUILD_DIR}
+step_end extract
+
+stamp_patched
+
+stamp_configured
+
+stamp_built
+
+step_start install-staging
+(cd ${PKGBUILD_DIR}; eval "${TARGET_MAKE_ENV} /usr/bin/make -j${MAXNUM_CPUS} ARCH=riscv HOSTCC=\"/usr/bin/gcc\" HOSTCFLAGS=\"\" HOSTCXX=\"/usr/bin/g++\" INSTALL_HDR_PATH=${STAGING_DIR}/usr headers_install")
+HOSTCC="/usr/bin/gcc" check_kernel_headers_version ${BUILD_DIR} ${STAGING_DIR} 6.12 strict
+step_end install-staging
+
+stamp_installed
+
+echo "<---- ${PKGBUILDNAME} build complete."