85 lines
2.6 KiB
Bash
85 lines
2.6 KiB
Bash
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Simple script to update the version of DTC carried by the Linux kernel
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#
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# This script assumes that the dtc and the linux git trees are in the
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# same directory. After building dtc in the dtc directory, it copies the
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# source files and generated source files into the scripts/dtc directory
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# in the kernel and creates a git commit updating them to the new
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# version.
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#
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# Usage: from the top level Linux source tree, run:
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# $ ./scripts/dtc/update-dtc-source.sh
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#
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# The script will change into the dtc tree, build and test dtc, copy the
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# relevant files into the kernel tree and create a git commit. The commit
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# message will need to be modified to reflect the version of DTC being
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# imported
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#
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# TODO:
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# This script is pretty basic, but it is seldom used so a few manual tasks
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# aren't a big deal. If anyone is interested in making it more robust, the
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# the following would be nice:
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# * Actually fail to complete if any testcase fails.
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# - The dtc "make check" target needs to return a failure
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# * Extract the version number from the dtc repo for the commit message
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# * Build dtc in the kernel tree
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# * run 'make check" on dtc built from the kernel tree
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set -ev
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DTC_UPSTREAM_PATH=`pwd`/../dtc
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DTC_LINUX_PATH=`pwd`/scripts/dtc
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DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c \
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srcpos.h treesource.c util.c util.h version_gen.h Makefile.dtc \
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dtc-lexer.l dtc-parser.y"
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DTC_GENERATED="dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h"
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LIBFDT_SOURCE="Makefile.libfdt fdt.c fdt.h fdt_addresses.c fdt_empty_tree.c \
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fdt_overlay.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c \
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fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h"
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get_last_dtc_version() {
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git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/'
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}
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last_dtc_ver=$(get_last_dtc_version)
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# Build DTC
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cd $DTC_UPSTREAM_PATH
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make clean
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make check
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dtc_version=$(git describe HEAD)
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dtc_log=$(git log --oneline ${last_dtc_ver}..)
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# Copy the files into the Linux tree
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cd $DTC_LINUX_PATH
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for f in $DTC_SOURCE; do
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cp ${DTC_UPSTREAM_PATH}/${f} ${f}
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git add ${f}
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done
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for f in $DTC_GENERATED; do
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cp ${DTC_UPSTREAM_PATH}/$f ${f}_shipped
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git add ${f}_shipped
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done
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for f in $LIBFDT_SOURCE; do
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cp ${DTC_UPSTREAM_PATH}/libfdt/${f} libfdt/${f}
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git add libfdt/${f}
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done
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sed -i -- 's/#include <libfdt_env.h>/#include "libfdt_env.h"/g' ./libfdt/libfdt.h
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sed -i -- 's/#include <fdt.h>/#include "fdt.h"/g' ./libfdt/libfdt.h
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git add ./libfdt/libfdt.h
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commit_msg=$(cat << EOF
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scripts/dtc: Update to upstream version ${dtc_version}
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This adds the following commits from upstream:
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${dtc_log}
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EOF
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)
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git commit -e -v -s -m "${commit_msg}"
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