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1 | #!/bin/sh | |
2 | # Simple script to update the version of DTC carried by the Linux kernel | |
3 | # | |
4 | # This script assumes that the dtc and the linux git trees are in the | |
5 | # same directory. After building dtc in the dtc directory, it copies the | |
6 | # source files and generated source files into the scripts/dtc directory | |
7 | # in the kernel and creates a git commit updating them to the new | |
8 | # version. | |
9 | # | |
10 | # Usage: from the top level Linux source tree, run: | |
11 | # $ ./scripts/dtc/update-dtc-source.sh | |
12 | # | |
13 | # The script will change into the dtc tree, build and test dtc, copy the | |
14 | # relevant files into the kernel tree and create a git commit. The commit | |
15 | # message will need to be modified to reflect the version of DTC being | |
16 | # imported | |
17 | # | |
18 | # TODO: | |
19 | # This script is pretty basic, but it is seldom used so a few manual tasks | |
20 | # aren't a big deal. If anyone is interested in making it more robust, the | |
21 | # the following would be nice: | |
22 | # * Actually fail to complete if any testcase fails. | |
23 | # - The dtc "make check" target needs to return a failure | |
24 | # * Extract the version number from the dtc repo for the commit message | |
25 | # * Build dtc in the kernel tree | |
26 | # * run 'make check" on dtc built from the kernel tree | |
27 | ||
28 | set -ev | |
29 | ||
30 | DTC_UPSTREAM_PATH=`pwd`/../dtc | |
31 | DTC_LINUX_PATH=`pwd`/scripts/dtc | |
32 | ||
33 | DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c \ | |
34 | srcpos.h treesource.c util.c util.h version_gen.h Makefile.dtc \ | |
35 | dtc-lexer.l dtc-parser.y" | |
36 | DTC_GENERATED="dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h" | |
37 | LIBFDT_SOURCE="Makefile.libfdt 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 | ||
41 | get_last_dtc_version() { | |
42 | git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/' | |
43 | } | |
44 | ||
45 | last_dtc_ver=$(get_last_dtc_version) | |
46 | ||
47 | # Build DTC | |
48 | cd $DTC_UPSTREAM_PATH | |
49 | make clean | |
50 | make check | |
51 | dtc_version=$(git describe HEAD) | |
52 | dtc_log=$(git log --oneline ${last_dtc_ver}..) | |
53 | ||
54 | ||
55 | # Copy the files into the Linux tree | |
56 | cd $DTC_LINUX_PATH | |
57 | for f in $DTC_SOURCE; do | |
58 | cp ${DTC_UPSTREAM_PATH}/${f} ${f} | |
59 | git add ${f} | |
60 | done | |
61 | for f in $DTC_GENERATED; do | |
62 | cp ${DTC_UPSTREAM_PATH}/$f ${f}_shipped | |
63 | git add ${f}_shipped | |
64 | done | |
65 | for f in $LIBFDT_SOURCE; do | |
66 | cp ${DTC_UPSTREAM_PATH}/libfdt/${f} libfdt/${f} | |
67 | git add libfdt/${f} | |
68 | done | |
69 | ||
70 | sed -i -- 's/#include <libfdt_env.h>/#include "libfdt_env.h"/g' ./libfdt/libfdt.h | |
71 | sed -i -- 's/#include <fdt.h>/#include "fdt.h"/g' ./libfdt/libfdt.h | |
72 | git add ./libfdt/libfdt.h | |
73 | ||
74 | commit_msg=$(cat << EOF | |
75 | scripts/dtc: Update to upstream version ${dtc_version} | |
76 | ||
77 | This adds the following commits from upstream: | |
78 | ||
79 | ${dtc_log} | |
80 | EOF | |
81 | ) | |
82 | ||
83 | git commit -e -v -s -m "${commit_msg}" |