1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# Simple script to update the version of DTC carried by the Linux kernel 4# 5# This script assumes that the dtc and the linux git trees are in the 6# same directory. After building dtc in the dtc directory, it copies the 7# source files and generated source file(s) into the scripts/dtc directory 8# in the kernel and creates a git commit updating them to the new 9# version. 10# 11# Usage: from the top level Linux source tree, run: 12# $ ./scripts/dtc/update-dtc-source.sh 13# 14# The script will change into the dtc tree, build and test dtc, copy the 15# relevant files into the kernel tree and create a git commit. The commit 16# message will need to be modified to reflect the version of DTC being 17# imported 18# 19# TODO: 20# This script is pretty basic, but it is seldom used so a few manual tasks 21# aren't a big deal. If anyone is interested in making it more robust, the 22# the following would be nice: 23# * Actually fail to complete if any testcase fails. 24# - The dtc "make check" target needs to return a failure 25# * Extract the version number from the dtc repo for the commit message 26# * Build dtc in the kernel tree 27# * run 'make check" on dtc built from the kernel tree 28 29set -ev 30 31DTC_UPSTREAM_PATH=`pwd`/../dtc 32DTC_LINUX_PATH=`pwd`/scripts/dtc 33 34DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c \ 35 srcpos.h treesource.c util.c util.h version_gen.h \ 36 dtc-lexer.l dtc-parser.y" 37LIBFDT_SOURCE="fdt.c fdt.h fdt_addresses.c fdt_empty_tree.c \ 38 fdt_overlay.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c \ 39 fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h" 40FDTOVERLAY_SOURCE=fdtoverlay.c 41 42get_last_dtc_version() { 43 git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/' 44} 45 46last_dtc_ver=$(get_last_dtc_version) 47 48# Build DTC 49cd $DTC_UPSTREAM_PATH 50make clean 51make check 52dtc_version=$(git describe HEAD) 53dtc_log=$(git log --oneline ${last_dtc_ver}..) 54 55 56# Copy the files into the Linux tree 57cd $DTC_LINUX_PATH 58for f in $DTC_SOURCE $FDTOVERLAY_SOURCE; do 59 cp ${DTC_UPSTREAM_PATH}/${f} ${f} 60 git add ${f} 61done 62for f in $LIBFDT_SOURCE; do 63 cp ${DTC_UPSTREAM_PATH}/libfdt/${f} libfdt/${f} 64 git add libfdt/${f} 65done 66 67sed -i -- 's/#include <libfdt_env.h>/#include "libfdt_env.h"/g' ./libfdt/libfdt.h 68sed -i -- 's/#include <fdt.h>/#include "fdt.h"/g' ./libfdt/libfdt.h 69git add ./libfdt/libfdt.h 70 71commit_msg=$(cat << EOF 72scripts/dtc: Update to upstream version ${dtc_version} 73 74This adds the following commits from upstream: 75 76${dtc_log} 77EOF 78) 79 80git commit -e -v -s -m "${commit_msg}" 81