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1da177e4 LT |
1 | #! /bin/sh |
2 | # Script to apply kernel patches. | |
3 | # usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ] | |
4 | # The source directory defaults to /usr/src/linux, and the patch | |
5 | # directory defaults to the current directory. | |
6 | # e.g. | |
7 | # scripts/patch-kernel . .. | |
8 | # Update the kernel tree in the current directory using patches in the | |
9 | # directory above to the latest Linus kernel | |
10 | # scripts/patch-kernel . .. -ac | |
11 | # Get the latest Linux kernel and patch it with the latest ac patch | |
12 | # scripts/patch-kernel . .. 2.4.9 | |
13 | # Gets standard kernel 2.4.9 | |
14 | # scripts/patch-kernel . .. 2.4.9 -ac | |
15 | # Gets 2.4.9 with latest ac patches | |
16 | # scripts/patch-kernel . .. 2.4.9 -ac11 | |
17 | # Gets 2.4.9 with ac patch ac11 | |
18 | # Note: It uses the patches relative to the Linus kernels, not the | |
19 | # ac to ac relative patches | |
20 | # | |
21 | # It determines the current kernel version from the top-level Makefile. | |
22 | # It then looks for patches for the next sublevel in the patch directory. | |
23 | # This is applied using "patch -p1 -s" from within the kernel directory. | |
24 | # A check is then made for "*.rej" files to see if the patch was | |
25 | # successful. If it is, then all of the "*.orig" files are removed. | |
26 | # | |
27 | # Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995. | |
28 | # | |
29 | # Added support for handling multiple types of compression. What includes | |
30 | # gzip, bzip, bzip2, zip, compress, and plaintext. | |
31 | # | |
32 | # Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997. | |
33 | # | |
34 | # Added ability to stop at a given version number | |
35 | # Put the full version number (i.e. 2.3.31) as the last parameter | |
36 | # Dave Gilbert <linux@treblig.org>, 11th December 1999. | |
37 | ||
38 | # Fixed previous patch so that if we are already at the correct version | |
39 | # not to patch up. | |
40 | # | |
41 | # Added -ac option, use -ac or -ac9 (say) to stop at a particular version | |
42 | # Dave Gilbert <linux@treblig.org>, 29th September 2001. | |
43 | # | |
44 | # Add support for (use of) EXTRAVERSION (to support 2.6.8.x, e.g.); | |
45 | # update usage message; | |
46 | # fix some whitespace damage; | |
47 | # be smarter about stopping when current version is larger than requested; | |
48 | # Randy Dunlap <rddunlap@osdl.org>, 2004-AUG-18. | |
49 | ||
50 | # Set directories from arguments, or use defaults. | |
51 | sourcedir=${1-/usr/src/linux} | |
52 | patchdir=${2-.} | |
53 | stopvers=${3-default} | |
54 | ||
55 | if [ "$1" == -h -o "$1" == --help -o ! -r "$sourcedir/Makefile" ]; then | |
56 | cat << USAGE | |
57 | usage: patch-kernel [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ] | |
58 | source directory defaults to /usr/src/linux, | |
59 | patch directory defaults to the current directory, | |
60 | stopversion defaults to <all in patchdir>. | |
61 | USAGE | |
62 | exit 1 | |
63 | fi | |
64 | ||
65 | # See if we have any -ac options | |
66 | for PARM in $* | |
67 | do | |
68 | case $PARM in | |
69 | -ac*) | |
70 | gotac=$PARM; | |
71 | ||
72 | esac; | |
73 | done | |
74 | ||
75 | # --------------------------------------------------------------------------- | |
76 | # Find a file, first parameter is basename of file | |
77 | # it tries many compression mechanisms and sets variables to say how to get it | |
78 | findFile () { | |
79 | filebase=$1; | |
80 | ||
81 | if [ -r ${filebase}.gz ]; then | |
82 | ext=".gz" | |
83 | name="gzip" | |
84 | uncomp="gunzip -dc" | |
85 | elif [ -r ${filebase}.bz ]; then | |
86 | ext=".bz" | |
87 | name="bzip" | |
88 | uncomp="bunzip -dc" | |
89 | elif [ -r ${filebase}.bz2 ]; then | |
90 | ext=".bz2" | |
91 | name="bzip2" | |
92 | uncomp="bunzip2 -dc" | |
93 | elif [ -r ${filebase}.zip ]; then | |
94 | ext=".zip" | |
95 | name="zip" | |
96 | uncomp="unzip -d" | |
97 | elif [ -r ${filebase}.Z ]; then | |
98 | ext=".Z" | |
99 | name="uncompress" | |
100 | uncomp="uncompress -c" | |
101 | elif [ -r ${filebase} ]; then | |
102 | ext="" | |
103 | name="plaintext" | |
104 | uncomp="cat" | |
105 | else | |
106 | return 1; | |
107 | fi | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
112 | # --------------------------------------------------------------------------- | |
113 | # Apply a patch and check it goes in cleanly | |
114 | # First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension | |
115 | ||
116 | applyPatch () { | |
117 | echo -n "Applying $1 (${name})... " | |
118 | if $uncomp ${patchdir}/$1${ext} | patch -p1 -s -N -E -d $sourcedir | |
119 | then | |
120 | echo "done." | |
121 | else | |
122 | echo "failed. Clean up yourself." | |
123 | return 1; | |
124 | fi | |
125 | if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ] | |
126 | then | |
127 | echo "Aborting. Reject files found." | |
128 | return 1; | |
129 | fi | |
130 | # Remove backup files | |
131 | find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \; | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | # set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION | |
137 | TMPFILE=`mktemp .tmpver.XXXXXX` || { echo "cannot make temp file" ; exit 1; } | |
138 | grep -E "^(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE | |
139 | tr -d [:blank:] < $TMPFILE > $TMPFILE.1 | |
140 | source $TMPFILE.1 | |
141 | rm -f $TMPFILE* | |
142 | if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ] | |
143 | then | |
144 | echo "unable to determine current kernel version" >&2 | |
145 | exit 1 | |
146 | fi | |
147 | ||
148 | NAME=`grep ^NAME $sourcedir/Makefile` | |
149 | NAME=${NAME##*=} | |
150 | ||
151 | echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} ($NAME)" | |
152 | ||
153 | # strip EXTRAVERSION to just a number (drop leading '.' and trailing additions) | |
154 | EXTRAVER= | |
155 | if [ x$EXTRAVERSION != "x" ] | |
156 | then | |
157 | if [ ${EXTRAVERSION:0:1} == "." ]; then | |
158 | EXTRAVER=${EXTRAVERSION:1} | |
159 | else | |
160 | EXTRAVER=$EXTRAVERSION | |
161 | fi | |
162 | EXTRAVER=${EXTRAVER%%[[:punct:]]*} | |
163 | #echo "patch-kernel: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER" | |
164 | fi | |
165 | ||
166 | #echo "stopvers=$stopvers" | |
167 | if [ $stopvers != "default" ]; then | |
168 | STOPSUBLEVEL=`echo $stopvers | cut -d. -f3` | |
169 | STOPEXTRA=`echo $stopvers | cut -d. -f4` | |
170 | #echo "STOPSUBLEVEL=$STOPSUBLEVEL, STOPEXTRA=$STOPEXTRA" | |
171 | else | |
172 | STOPSUBLEVEL=9999 | |
173 | STOPEXTRA=9999 | |
174 | fi | |
175 | ||
176 | while : # incrementing SUBLEVEL (s in v.p.s) | |
177 | do | |
178 | if [ x$EXTRAVER != "x" ]; then | |
179 | CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER" | |
180 | else | |
181 | CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL" | |
182 | fi | |
183 | ||
184 | if [ $stopvers == $CURRENTFULLVERSION ]; then | |
185 | echo "Stopping at $CURRENTFULLVERSION base as requested." | |
186 | break | |
187 | fi | |
188 | ||
189 | while : # incrementing EXTRAVER (x in v.p.s.x) | |
190 | do | |
191 | EXTRAVER=$((EXTRAVER + 1)) | |
192 | FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER" | |
193 | #echo "... trying $FULLVERSION ..." | |
194 | ||
195 | patch=patch-$FULLVERSION | |
196 | ||
197 | # See if the file exists and find extension | |
198 | findFile $patchdir/${patch} || break | |
199 | ||
200 | # Apply the patch and check all is OK | |
201 | applyPatch $patch || break | |
202 | ||
203 | continue 2 | |
204 | done | |
205 | ||
206 | EXTRAVER= | |
207 | SUBLEVEL=$((SUBLEVEL + 1)) | |
208 | FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL" | |
209 | #echo "___ trying $FULLVERSION ___" | |
210 | ||
211 | if [ $((SUBLEVEL)) -gt $((STOPSUBLEVEL)) ]; then | |
212 | echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)" | |
213 | exit 1 | |
214 | fi | |
215 | ||
216 | patch=patch-$FULLVERSION | |
217 | ||
218 | # See if the file exists and find extension | |
219 | findFile $patchdir/${patch} || break | |
220 | ||
221 | # Apply the patch and check all is OK | |
222 | applyPatch $patch || break | |
223 | done | |
224 | #echo "base all done" | |
225 | ||
226 | if [ x$gotac != x ]; then | |
227 | # Out great user wants the -ac patches | |
228 | # They could have done -ac (get latest) or -acxx where xx=version they want | |
229 | if [ $gotac == "-ac" ]; then | |
230 | # They want the latest version | |
231 | HIGHESTPATCH=0 | |
232 | for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac*\.* | |
233 | do | |
234 | ACVALUE=`echo $PATCHNAMES | sed -e 's/^.*patch-[0-9.]*-ac\([0-9]*\).*/\1/'` | |
235 | # Check it is actually a recognised patch type | |
236 | findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} || break | |
237 | ||
238 | if [ $ACVALUE -gt $HIGHESTPATCH ]; then | |
239 | HIGHESTPATCH=$ACVALUE | |
240 | fi | |
241 | done | |
242 | ||
243 | if [ $HIGHESTPATCH -ne 0 ]; then | |
244 | findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} || break | |
245 | applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} | |
246 | else | |
247 | echo "No -ac patches found" | |
248 | fi | |
249 | else | |
250 | # They want an exact version | |
251 | findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} || { | |
252 | echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION. Hohum." | |
253 | exit 1 | |
254 | } | |
255 | applyPatch patch-${CURRENTFULLVERSION}${gotac} | |
256 | fi | |
257 | fi |