1 #! /bin/sh 1 #! /bin/sh
2 # SPDX-License-Identifier: GPL-2.0 <<
3 # Script to apply kernel patches. 2 # Script to apply kernel patches.
4 # usage: patch-kernel [ sourcedir [ patchdir 3 # usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
5 # The source directory defaults to /usr/sr 4 # The source directory defaults to /usr/src/linux, and the patch
6 # directory defaults to the current direct 5 # directory defaults to the current directory.
7 # e.g. 6 # e.g.
8 # scripts/patch-kernel . .. 7 # scripts/patch-kernel . ..
9 # Update the kernel tree in the current d 8 # Update the kernel tree in the current directory using patches in the
10 # directory above to the latest Linus ker 9 # directory above to the latest Linus kernel
11 # scripts/patch-kernel . .. -ac 10 # scripts/patch-kernel . .. -ac
12 # Get the latest Linux kernel and patch i 11 # Get the latest Linux kernel and patch it with the latest ac patch
13 # scripts/patch-kernel . .. 2.4.9 12 # scripts/patch-kernel . .. 2.4.9
14 # Gets standard kernel 2.4.9 13 # Gets standard kernel 2.4.9
15 # scripts/patch-kernel . .. 2.4.9 -ac 14 # scripts/patch-kernel . .. 2.4.9 -ac
16 # Gets 2.4.9 with latest ac patches 15 # Gets 2.4.9 with latest ac patches
17 # scripts/patch-kernel . .. 2.4.9 -ac11 16 # scripts/patch-kernel . .. 2.4.9 -ac11
18 # Gets 2.4.9 with ac patch ac11 17 # Gets 2.4.9 with ac patch ac11
19 # Note: It uses the patches relative to the 18 # Note: It uses the patches relative to the Linus kernels, not the
20 # ac to ac relative patches 19 # ac to ac relative patches
21 # 20 #
22 # It determines the current kernel version fro 21 # It determines the current kernel version from the top-level Makefile.
23 # It then looks for patches for the next suble 22 # It then looks for patches for the next sublevel in the patch directory.
24 # This is applied using "patch -p1 -s" from wi 23 # This is applied using "patch -p1 -s" from within the kernel directory.
25 # A check is then made for "*.rej" files to se 24 # A check is then made for "*.rej" files to see if the patch was
26 # successful. If it is, then all of the "*.or 25 # successful. If it is, then all of the "*.orig" files are removed.
27 # 26 #
28 # Nick Holloway <Nick.Holloway@alfie.demo 27 # Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995.
29 # 28 #
30 # Added support for handling multiple types of 29 # Added support for handling multiple types of compression. What includes
31 # gzip, bzip, bzip2, zip, compress, and plaint !! 30 # gzip, bzip, bzip2, zip, compress, and plaintext.
32 # 31 #
33 # Adam Sulmicki <adam@cfar.umd.edu>, 1st 32 # Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997.
34 # 33 #
35 # Added ability to stop at a given version num 34 # Added ability to stop at a given version number
36 # Put the full version number (i.e. 2.3.31) as 35 # Put the full version number (i.e. 2.3.31) as the last parameter
37 # Dave Gilbert <linux@treblig.org>, 11th 36 # Dave Gilbert <linux@treblig.org>, 11th December 1999.
38 37
39 # Fixed previous patch so that if we are alrea 38 # Fixed previous patch so that if we are already at the correct version
40 # not to patch up. 39 # not to patch up.
41 # 40 #
42 # Added -ac option, use -ac or -ac9 (say) to s 41 # Added -ac option, use -ac or -ac9 (say) to stop at a particular version
43 # Dave Gilbert <linux@treblig.org>, 29th 42 # Dave Gilbert <linux@treblig.org>, 29th September 2001.
44 # <<
45 # Add support for (use of) EXTRAVERSION (to su <<
46 # update usage message; <<
47 # fix some whitespace damage; <<
48 # be smarter about stopping when current versi <<
49 # Randy Dunlap <rdunlap@xenotime.net>, 20 <<
50 # <<
51 # Add better support for (non-incremental) 2.6 <<
52 # If an ending version number if not specified <<
53 # increments the SUBLEVEL (x in 2.6.x.y) until <<
54 # however, EXTRAVERSION (y in 2.6.x.y) is neve <<
55 # but must be specified fully. <<
56 # <<
57 # patch-kernel does not normally support rever <<
58 # applying EXTRAVERSION (x.y) patches, so that <<
59 # is easy and handled by the script (reverse 2 <<
60 # Randy Dunlap <rdunlap@xenotime.net>, 20 <<
61 <<
62 PNAME=patch-kernel <<
63 43
64 # Set directories from arguments, or use defau 44 # Set directories from arguments, or use defaults.
65 sourcedir=${1-/usr/src/linux} 45 sourcedir=${1-/usr/src/linux}
66 patchdir=${2-.} 46 patchdir=${2-.}
67 stopvers=${3-default} !! 47 stopvers=${3-imnotaversion}
68 48
69 if [ "$1" = -h -o "$1" = --help -o ! -r "$sour 49 if [ "$1" = -h -o "$1" = --help -o ! -r "$sourcedir/Makefile" ]; then
70 cat << USAGE 50 cat << USAGE
71 usage: $PNAME [-h] [ sourcedir [ patchdir [ st !! 51 usage: patch-kernel [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
72 source directory defaults to /usr/src/linux, !! 52 The source directory defaults to /usr/src/linux, and
73 patch directory defaults to the current dire !! 53 the patch directory defaults to the current directory.
74 stopversion defaults to <all in patchdir>. <<
75 USAGE 54 USAGE
76 exit 1 55 exit 1
77 fi 56 fi
78 57
79 # See if we have any -ac options 58 # See if we have any -ac options
80 for PARM in $* 59 for PARM in $*
81 do 60 do
82 case $PARM in 61 case $PARM in
83 -ac*) 62 -ac*)
84 gotac=$PARM; 63 gotac=$PARM;
85 64
86 esac; 65 esac;
87 done 66 done
88 67
89 # -------------------------------------------- 68 # ---------------------------------------------------------------------------
90 # arg1 is filename <<
91 noFile () { <<
92 echo "cannot find patch file: ${patch} <<
93 exit 1 <<
94 } <<
95 <<
96 # -------------------------------------------- <<
97 backwards () { <<
98 echo "$PNAME does not support reverse <<
99 exit 1 <<
100 } <<
101 <<
102 # -------------------------------------------- <<
103 # Find a file, first parameter is basename of 69 # Find a file, first parameter is basename of file
104 # it tries many compression mechanisms and set 70 # it tries many compression mechanisms and sets variables to say how to get it
105 findFile () { 71 findFile () {
106 filebase=$1; 72 filebase=$1;
107 73
108 if [ -r ${filebase}.gz ]; then 74 if [ -r ${filebase}.gz ]; then
109 ext=".gz" 75 ext=".gz"
110 name="gzip" 76 name="gzip"
111 uncomp="gunzip -dc" 77 uncomp="gunzip -dc"
112 elif [ -r ${filebase}.bz ]; then 78 elif [ -r ${filebase}.bz ]; then
113 ext=".bz" 79 ext=".bz"
114 name="bzip" !! 80 name="bzip"
115 uncomp="bunzip -dc" 81 uncomp="bunzip -dc"
116 elif [ -r ${filebase}.bz2 ]; then 82 elif [ -r ${filebase}.bz2 ]; then
117 ext=".bz2" 83 ext=".bz2"
118 name="bzip2" 84 name="bzip2"
119 uncomp="bunzip2 -dc" 85 uncomp="bunzip2 -dc"
120 elif [ -r ${filebase}.xz ]; then <<
121 ext=".xz" <<
122 name="xz" <<
123 uncomp="xz -dc" <<
124 elif [ -r ${filebase}.zip ]; then 86 elif [ -r ${filebase}.zip ]; then
125 ext=".zip" 87 ext=".zip"
126 name="zip" 88 name="zip"
127 uncomp="unzip -d" 89 uncomp="unzip -d"
128 elif [ -r ${filebase}.Z ]; then 90 elif [ -r ${filebase}.Z ]; then
129 ext=".Z" 91 ext=".Z"
130 name="uncompress" 92 name="uncompress"
131 uncomp="uncompress -c" 93 uncomp="uncompress -c"
132 elif [ -r ${filebase} ]; then 94 elif [ -r ${filebase} ]; then
133 ext="" 95 ext=""
134 name="plaintext" 96 name="plaintext"
135 uncomp="cat" 97 uncomp="cat"
136 else 98 else
137 return 1; !! 99 return 1;
138 fi !! 100 fi
139 101
140 return 0; 102 return 0;
141 } 103 }
142 104
143 # -------------------------------------------- 105 # ---------------------------------------------------------------------------
144 # Apply a patch and check it goes in cleanly 106 # Apply a patch and check it goes in cleanly
145 # First param is patch name (e.g. patch-2.4.9- 107 # First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension
146 108
147 applyPatch () { 109 applyPatch () {
148 echo -n "Applying $1 (${name})... " 110 echo -n "Applying $1 (${name})... "
149 if $uncomp ${patchdir}/$1${ext} | patch -p1 111 if $uncomp ${patchdir}/$1${ext} | patch -p1 -s -N -E -d $sourcedir
150 then 112 then
151 echo "done." 113 echo "done."
152 else 114 else
153 echo "failed. Clean up yourself." 115 echo "failed. Clean up yourself."
154 return 1; 116 return 1;
155 fi 117 fi
156 if [ "`find $sourcedir/ '(' -name '*.rej' -o 118 if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
157 then 119 then
158 echo "Aborting. Reject files found." 120 echo "Aborting. Reject files found."
159 return 1; 121 return 1;
160 fi 122 fi
161 # Remove backup files 123 # Remove backup files
162 find $sourcedir/ '(' -name '*.orig' -o -name 124 find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;
163 !! 125
164 return 0; 126 return 0;
165 } 127 }
166 128
167 # -------------------------------------------- !! 129 # set current VERSION, PATCHLEVEL, SUBLEVEL, EXTERVERSION
168 # arg1 is patch filename !! 130 eval `sed -n -e 's/^\([A-Z]*\) = \([0-9]*\)$/\1=\2/p' -e 's/^\([A-Z]*\) = \(-[-a-z0-9]*\)$/\1=\2/p' $sourcedir/Makefile`
169 reversePatch () { <<
170 echo -n "Reversing $1 (${name}) ... " <<
171 if $uncomp ${patchdir}/"$1"${ext} | pa <<
172 then <<
173 echo "done." <<
174 else <<
175 echo "failed. Clean it up." <<
176 exit 1 <<
177 fi <<
178 if [ "`find $sourcedir/ '(' -name '*.r <<
179 then <<
180 echo "Aborting. Reject files <<
181 return 1 <<
182 fi <<
183 # Remove backup files <<
184 find $sourcedir/ '(' -name '*.orig' -o <<
185 <<
186 return 0 <<
187 } <<
188 <<
189 # set current VERSION, PATCHLEVEL, SUBLEVEL, E <<
190 # force $TMPFILEs below to be in local directo <<
191 # the dot command from using the search path. <<
192 TMPFILE=`mktemp ./.tmpver.XXXXXX` || { echo "c <<
193 grep -E "^(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVE <<
194 tr -d [:blank:] < $TMPFILE > $TMPFILE.1 <<
195 . $TMPFILE.1 <<
196 rm -f $TMPFILE* <<
197 if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z " 131 if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
198 then 132 then
199 echo "unable to determine current kernel v 133 echo "unable to determine current kernel version" >&2
200 exit 1 134 exit 1
201 fi 135 fi
202 136
203 NAME=`grep ^NAME $sourcedir/Makefile` !! 137 echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION}"
204 NAME=${NAME##*=} <<
205 138
206 echo "Current kernel version is $VERSION.$PATC <<
207 <<
208 # strip EXTRAVERSION to just a number (drop le <<
209 EXTRAVER= <<
210 if [ x$EXTRAVERSION != "x" ] 139 if [ x$EXTRAVERSION != "x" ]
211 then 140 then
212 EXTRAVER=${EXTRAVERSION#.} !! 141 echo "I'm sorry but patch-kernel can't work with a kernel source tree that is not a base version"
213 EXTRAVER=${EXTRAVER%%[[:punct:]]*} !! 142 exit 1;
214 #echo "$PNAME: changing EXTRAVERSION f <<
215 fi <<
216 <<
217 #echo "stopvers=$stopvers" <<
218 if [ $stopvers != "default" ]; then <<
219 STOPSUBLEVEL=`echo $stopvers | cut -d. <<
220 STOPEXTRA=`echo $stopvers | cut -d. -f <<
221 STOPFULLVERSION=${stopvers%%.$STOPEXTR <<
222 #echo "#___STOPSUBLEVEL=/$STOPSUBLEVEL <<
223 else <<
224 STOPSUBLEVEL=9999 <<
225 STOPEXTRA=9999 <<
226 fi 143 fi
227 144
228 # This all assumes a 2.6.x[.y] kernel tree. !! 145 while :
229 # Don't allow backwards/reverse patching. <<
230 if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then <<
231 backwards <<
232 fi <<
233 <<
234 if [ x$EXTRAVER != "x" ]; then <<
235 CURRENTFULLVERSION="$VERSION.$PATCHLEV <<
236 else <<
237 CURRENTFULLVERSION="$VERSION.$PATCHLEV <<
238 fi <<
239 <<
240 if [ x$EXTRAVER != "x" ]; then <<
241 echo "backing up to: $VERSION.$PATCHLE <<
242 patch="patch-${CURRENTFULLVERSION}" <<
243 findFile $patchdir/${patch} || noFile <<
244 reversePatch ${patch} || exit 1 <<
245 fi <<
246 <<
247 # now current is 2.6.x, with no EXTRA applied, <<
248 # so update to target SUBLEVEL (2.6.SUBLEVEL) <<
249 # and then to target EXTRAVER (2.6.SUB.EXTRAVE <<
250 # If not ending sublevel is specified, it is i <<
251 # no further sublevels are found. <<
252 <<
253 if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then <<
254 while : # incrementing <<
255 do 146 do
256 CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$ 147 CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
257 EXTRAVER= !! 148 if [ $stopvers = $CURRENTFULLVERSION ]
258 if [ x$STOPFULLVERSION = x$CURRENTFULLVERS !! 149 then
259 echo "Stopping at $CURRENTFULLVERSION !! 150 echo "Stoping at $CURRENTFULLVERSION base as requested."
260 break 151 break
261 fi 152 fi
262 153
263 SUBLEVEL=$(($SUBLEVEL + 1)) !! 154 SUBLEVEL=`expr $SUBLEVEL + 1`
264 FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVE 155 FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
265 #echo "#___ trying $FULLVERSION ___" <<
266 <<
267 if [ $(($SUBLEVEL)) -gt $(($STOPSUBLEVEL)) <<
268 echo "Stopping since sublevel ($SUBLEV <<
269 exit 1 <<
270 fi <<
271 156
272 patch=patch-$FULLVERSION 157 patch=patch-$FULLVERSION
273 # See if the file exists and find extensio !! 158
274 findFile $patchdir/${patch} || noFile ${pa !! 159 # See if the file exists and find extension
>> 160 findFile $patchdir/${patch} || break
275 161
276 # Apply the patch and check all is OK 162 # Apply the patch and check all is OK
277 applyPatch $patch || break 163 applyPatch $patch || break
278 done 164 done
279 #echo "#___sublevel all done" <<
280 fi <<
281 <<
282 # There is no incremental searching for extrav <<
283 if [ "$STOPEXTRA" != "" ]; then <<
284 while : # just to allo <<
285 do <<
286 # apply STOPEXTRA directly (not incrementally) <<
287 FULLVERSION="$VERSION.$PATCHLEVEL.$SUB <<
288 #echo "#... trying $FULLVERSION ..." <<
289 patch=patch-$FULLVERSION <<
290 <<
291 # See if the file exists and find exte <<
292 findFile $patchdir/${patch} || noFile <<
293 <<
294 # Apply the patch and check all is OK <<
295 applyPatch $patch || break <<
296 #echo "#___extraver all done" <<
297 break <<
298 done <<
299 fi <<
300 165
301 if [ x$gotac != x ]; then 166 if [ x$gotac != x ]; then
302 # Out great user wants the -ac patches 167 # Out great user wants the -ac patches
303 # They could have done -ac (get latest 168 # They could have done -ac (get latest) or -acxx where xx=version they want
304 if [ $gotac = "-ac" ]; then !! 169 if [ $gotac == "-ac" ]
>> 170 then
305 # They want the latest version 171 # They want the latest version
306 HIGHESTPATCH=0 172 HIGHESTPATCH=0
307 for PATCHNAMES in $patchdir/pa 173 for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac*\.*
308 do 174 do
309 ACVALUE=`echo $PATCHNA 175 ACVALUE=`echo $PATCHNAMES | sed -e 's/^.*patch-[0-9.]*-ac\([0-9]*\).*/\1/'`
310 # Check it is actually 176 # Check it is actually a recognised patch type
311 findFile $patchdir/pat 177 findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} || break
312 178
313 if [ $ACVALUE -gt $HIGHESTPA !! 179 if [ $ACVALUE -gt $HIGHESTPATCH ]
>> 180 then
314 HIGHESTPATCH=$ACVALU 181 HIGHESTPATCH=$ACVALUE
315 fi 182 fi
316 done 183 done
317 184
318 if [ $HIGHESTPATCH -ne 0 ]; th !! 185 if [ $HIGHESTPATCH -ne 0 ]
>> 186 then
319 findFile $patchdir/pat 187 findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} || break
320 applyPatch patch-${CUR 188 applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH}
321 else 189 else
322 echo "No -ac patches found" !! 190 echo "No ac patches found"
323 fi 191 fi
324 else 192 else
325 # They want an exact version 193 # They want an exact version
326 findFile $patchdir/patch-${CUR 194 findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} || {
327 echo "Sorry, I couldn't find 195 echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION. Hohum."
328 exit 1 196 exit 1
329 } 197 }
330 applyPatch patch-${CURRENTFULL 198 applyPatch patch-${CURRENTFULLVERSION}${gotac}
331 fi 199 fi
332 fi 200 fi
>> 201
>> 202
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