ia64/linux-2.6.18-xen.hg

view scripts/patch-kernel @ 912:dd42cdb0ab89

[IA64] Build blktap2 driver by default in x86 builds.

add CONFIG_XEN_BLKDEV_TAP2=y to buildconfigs/linux-defconfig_xen_ia64.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Isaku Yamahata <yamahata@valinux.co.jp>
date Mon Jun 29 12:09:16 2009 +0900 (2009-06-29)
parents 831230e53067
children
line source
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.
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 <rdunlap@xenotime.net>, 2004-AUG-18.
49 #
50 # Add better support for (non-incremental) 2.6.x.y patches;
51 # If an ending version number if not specified, the script automatically
52 # increments the SUBLEVEL (x in 2.6.x.y) until no more patch files are found;
53 # however, EXTRAVERSION (y in 2.6.x.y) is never automatically incremented
54 # but must be specified fully.
55 #
56 # patch-kernel does not normally support reverse patching, but does so when
57 # applying EXTRAVERSION (x.y) patches, so that moving from 2.6.11.y to 2.6.11.z
58 # is easy and handled by the script (reverse 2.6.11.y and apply 2.6.11.z).
59 # Randy Dunlap <rdunlap@xenotime.net>, 2005-APR-08.
61 PNAME=patch-kernel
63 # Set directories from arguments, or use defaults.
64 sourcedir=${1-/usr/src/linux}
65 patchdir=${2-.}
66 stopvers=${3-default}
68 if [ "$1" == -h -o "$1" == --help -o ! -r "$sourcedir/Makefile" ]; then
69 cat << USAGE
70 usage: $PNAME [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
71 source directory defaults to /usr/src/linux,
72 patch directory defaults to the current directory,
73 stopversion defaults to <all in patchdir>.
74 USAGE
75 exit 1
76 fi
78 # See if we have any -ac options
79 for PARM in $*
80 do
81 case $PARM in
82 -ac*)
83 gotac=$PARM;
85 esac;
86 done
88 # ---------------------------------------------------------------------------
89 # arg1 is filename
90 noFile () {
91 echo "cannot find patch file: ${patch}"
92 exit 1
93 }
95 # ---------------------------------------------------------------------------
96 backwards () {
97 echo "$PNAME does not support reverse patching"
98 exit 1
99 }
101 # ---------------------------------------------------------------------------
102 # Find a file, first parameter is basename of file
103 # it tries many compression mechanisms and sets variables to say how to get it
104 findFile () {
105 filebase=$1;
107 if [ -r ${filebase}.gz ]; then
108 ext=".gz"
109 name="gzip"
110 uncomp="gunzip -dc"
111 elif [ -r ${filebase}.bz ]; then
112 ext=".bz"
113 name="bzip"
114 uncomp="bunzip -dc"
115 elif [ -r ${filebase}.bz2 ]; then
116 ext=".bz2"
117 name="bzip2"
118 uncomp="bunzip2 -dc"
119 elif [ -r ${filebase}.zip ]; then
120 ext=".zip"
121 name="zip"
122 uncomp="unzip -d"
123 elif [ -r ${filebase}.Z ]; then
124 ext=".Z"
125 name="uncompress"
126 uncomp="uncompress -c"
127 elif [ -r ${filebase} ]; then
128 ext=""
129 name="plaintext"
130 uncomp="cat"
131 else
132 return 1;
133 fi
135 return 0;
136 }
138 # ---------------------------------------------------------------------------
139 # Apply a patch and check it goes in cleanly
140 # First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension
142 applyPatch () {
143 echo -n "Applying $1 (${name})... "
144 if $uncomp ${patchdir}/$1${ext} | patch -p1 -s -N -E -d $sourcedir
145 then
146 echo "done."
147 else
148 echo "failed. Clean up yourself."
149 return 1;
150 fi
151 if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
152 then
153 echo "Aborting. Reject files found."
154 return 1;
155 fi
156 # Remove backup files
157 find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;
159 return 0;
160 }
162 # ---------------------------------------------------------------------------
163 # arg1 is patch filename
164 reversePatch () {
165 echo -n "Reversing $1 (${name}) ... "
166 if $uncomp ${patchdir}/"$1"${ext} | patch -p1 -Rs -N -E -d $sourcedir
167 then
168 echo "done."
169 else
170 echo "failed. Clean it up."
171 exit 1
172 fi
173 if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
174 then
175 echo "Aborting. Reject files found."
176 return 1
177 fi
178 # Remove backup files
179 find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;
181 return 0
182 }
184 # set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION
185 TMPFILE=`mktemp .tmpver.XXXXXX` || { echo "cannot make temp file" ; exit 1; }
186 grep -E "^(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE
187 tr -d [:blank:] < $TMPFILE > $TMPFILE.1
188 source $TMPFILE.1
189 rm -f $TMPFILE*
190 if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
191 then
192 echo "unable to determine current kernel version" >&2
193 exit 1
194 fi
196 NAME=`grep ^NAME $sourcedir/Makefile`
197 NAME=${NAME##*=}
199 echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} ($NAME)"
201 # strip EXTRAVERSION to just a number (drop leading '.' and trailing additions)
202 EXTRAVER=
203 if [ x$EXTRAVERSION != "x" ]
204 then
205 if [ ${EXTRAVERSION:0:1} == "." ]; then
206 EXTRAVER=${EXTRAVERSION:1}
207 else
208 EXTRAVER=$EXTRAVERSION
209 fi
210 EXTRAVER=${EXTRAVER%%[[:punct:]]*}
211 #echo "$PNAME: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER"
212 fi
214 #echo "stopvers=$stopvers"
215 if [ $stopvers != "default" ]; then
216 STOPSUBLEVEL=`echo $stopvers | cut -d. -f3`
217 STOPEXTRA=`echo $stopvers | cut -d. -f4`
218 #echo "#___STOPSUBLEVEL=/$STOPSUBLEVEL/, STOPEXTRA=/$STOPEXTRA/"
219 else
220 STOPSUBLEVEL=9999
221 STOPEXTRA=9999
222 fi
224 # This all assumes a 2.6.x[.y] kernel tree.
225 # Don't allow backwards/reverse patching.
226 if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then
227 backwards
228 fi
230 if [ x$EXTRAVER != "x" ]; then
231 CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER"
232 else
233 CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
234 fi
236 if [ x$EXTRAVER != "x" ]; then
237 echo "backing up to: $VERSION.$PATCHLEVEL.$SUBLEVEL"
238 patch="patch-${CURRENTFULLVERSION}"
239 findFile $patchdir/${patch} || noFile ${patch}
240 reversePatch ${patch} || exit 1
241 fi
243 # now current is 2.6.x, with no EXTRA applied,
244 # so update to target SUBLEVEL (2.6.SUBLEVEL)
245 # and then to target EXTRAVER (2.6.SUB.EXTRAVER) if requested.
246 # If not ending sublevel is specified, it is incremented until
247 # no further sublevels are found.
249 if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then
250 while : # incrementing SUBLEVEL (s in v.p.s)
251 do
252 CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
253 EXTRAVER=
254 if [ $stopvers == $CURRENTFULLVERSION ]; then
255 echo "Stopping at $CURRENTFULLVERSION base as requested."
256 break
257 fi
259 SUBLEVEL=$((SUBLEVEL + 1))
260 FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
261 #echo "#___ trying $FULLVERSION ___"
263 if [ $((SUBLEVEL)) -gt $((STOPSUBLEVEL)) ]; then
264 echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)"
265 exit 1
266 fi
268 patch=patch-$FULLVERSION
269 # See if the file exists and find extension
270 findFile $patchdir/${patch} || noFile ${patch}
272 # Apply the patch and check all is OK
273 applyPatch $patch || break
274 done
275 #echo "#___sublevel all done"
276 fi
278 # There is no incremental searching for extraversion...
279 if [ "$STOPEXTRA" != "" ]; then
280 while : # just to allow break
281 do
282 # apply STOPEXTRA directly (not incrementally) (x in v.p.s.x)
283 FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$STOPEXTRA"
284 #echo "#... trying $FULLVERSION ..."
285 patch=patch-$FULLVERSION
287 # See if the file exists and find extension
288 findFile $patchdir/${patch} || noFile ${patch}
290 # Apply the patch and check all is OK
291 applyPatch $patch || break
292 #echo "#___extraver all done"
293 break
294 done
295 fi
297 if [ x$gotac != x ]; then
298 # Out great user wants the -ac patches
299 # They could have done -ac (get latest) or -acxx where xx=version they want
300 if [ $gotac == "-ac" ]; then
301 # They want the latest version
302 HIGHESTPATCH=0
303 for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac*\.*
304 do
305 ACVALUE=`echo $PATCHNAMES | sed -e 's/^.*patch-[0-9.]*-ac\([0-9]*\).*/\1/'`
306 # Check it is actually a recognised patch type
307 findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} || break
309 if [ $ACVALUE -gt $HIGHESTPATCH ]; then
310 HIGHESTPATCH=$ACVALUE
311 fi
312 done
314 if [ $HIGHESTPATCH -ne 0 ]; then
315 findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} || break
316 applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH}
317 else
318 echo "No -ac patches found"
319 fi
320 else
321 # They want an exact version
322 findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} || {
323 echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION. Hohum."
324 exit 1
325 }
326 applyPatch patch-${CURRENTFULLVERSION}${gotac}
327 fi
328 fi