LXR linux/scripts/dtc/update-dtc-source.sh

   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 yamltree.c \
  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"
  40
  41get_last_dtc_version() {
  42        git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/'
  43}
  44
  45last_dtc_ver=$(get_last_dtc_version)
  46
  47# Build DTC
  48cd $DTC_UPSTREAM_PATH
  49make clean
  50make check
  51dtc_version=$(git describe HEAD)
  52dtc_log=$(git log --oneline ${last_dtc_ver}..)
  53
  54
  55# Copy the files into the Linux tree
  56cd $DTC_LINUX_PATH
  57for f in $DTC_SOURCE; do
  58        cp ${DTC_UPSTREAM_PATH}/${f} ${f}
  59        git add ${f}
  60done
  61for f in $LIBFDT_SOURCE; do
  62       cp ${DTC_UPSTREAM_PATH}/libfdt/${f} libfdt/${f}
  63       git add libfdt/${f}
  64done
  65
  66sed -i -- 's/#include <libfdt_env.h>/#include "libfdt_env.h"/g' ./libfdt/libfdt.h
  67sed -i -- 's/#include <fdt.h>/#include "fdt.h"/g' ./libfdt/libfdt.h
  68git add ./libfdt/libfdt.h
  69
  70commit_msg=$(cat << EOF
  71scripts/dtc: Update to upstream version ${dtc_version}
  72
  73This adds the following commits from upstream:
  74
  75${dtc_log}
  76EOF
  77)
  78
  79git commit -e -v -s -m "${commit_msg}"
  80