/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.1 Revision 1.38
1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2006 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.1 2004/11/24 16:36:38 johnm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.38 2006/01/20 14:27:47 dsd Exp $
4# 4#
5# This eclass provides functions for querying the installed kernel 5# Description: This eclass is used as a central eclass for accessing kernel
6# source version, selected kernel options etc. 6# related information for sources already installed.
7# It is vital for linux-mod to function correctly, and is split
8# out so that any ebuild behaviour "templates" are abstracted out
9# using additional eclasses.
7# 10#
11# Maintainer: John Mylchreest <johnm@gentoo.org>
12# Copyright 2004 Gentoo Linux
13#
14# Please direct your bugs to the current eclass maintainer :)
8 15
9ECLASS=linux-info 16# A Couple of env vars are available to effect usage of this eclass
10INHERITED="$INHERITED $ECLASS" 17# These are as follows:
18#
19# Env Var Option Description
20# KERNEL_DIR <string> The directory containing kernel the target kernel
21# sources.
22# CONFIG_CHECK <string> a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR"
24# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!).
26# ie: CONFIG_CHECK="!MTRR"
27# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check
29# fails. <CFG> should reference the appropriate option
30# as above. ie: ERROR_MTRR="MTRR exists in the .config
31# but shouldn't!!"
32# KBUILD_OUTPUT <string> This is passed on commandline, or can be set from
33# the kernel makefile. This contains the directory
34# which is to be used as the kernel object directory.
35
36# There are also a couple of variables which are set by this, and shouldn't be
37# set by hand. These are as follows:
38#
39# Env Var Option Description
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1
41# KV_MAJOR <integer> The kernel major version. ie: 2
42# KV_MINOR <integer> The kernel minor version. ie: 6
43# KV_PATCH <integer> The kernel patch version. ie: 9
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo
45# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm
46# KV_DIR <string> The kernel source directory, will be null if
47# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless
49# koutput is used. This should be used for referencing
50# .config.
51
52# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator
54
55EXPORT_FUNCTIONS pkg_setup
11 56
12# Overwritable environment Var's 57# Overwritable environment Var's
13# --------------------------------------- 58# ---------------------------------------
14KERNEL_DIR="${KERNEL_DIR:-/usr/src/linux}" 59KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
15 60
16 61
62# Bug fixes
63# fix to bug #75034
64case ${ARCH} in
65 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
66 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
67esac
68
69# These are legacy wrappers for toolchain-funcs.
70# I dont like them here, but oh well.
71set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; }
72set_arch_to_portage() { export ARCH="$(tc-arch)"; }
73
74# qeinfo "Message"
75# -------------------
76# qeinfo is a quiet einfo call when EBUILD_PHASE
77# should not have visible output.
78qout() {
79 local outputmsg type
80 type=${1}
81 shift
82 outputmsg="${@}"
83 case "${EBUILD_PHASE}" in
84 depend) unset outputmsg;;
85 clean) unset outputmsg;;
86 preinst) unset outputmsg;;
87 esac
88 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
89}
90
91qeinfo() { qout einfo "${@}" ; }
92qeerror() { qout eerror "${@}" ; }
17 93
18# File Functions 94# File Functions
19# --------------------------------------- 95# ---------------------------------------
20 96
21# getfilevar accepts 2 vars as follows: 97# getfilevar accepts 2 vars as follows:
22# getfilevar <VARIABLE> <CONFIGFILE> 98# getfilevar <VARIABLE> <CONFIGFILE>
23 99
24getfilevar() { 100getfilevar() {
25local ERROR 101local ERROR workingdir basefname basedname myARCH="${ARCH}"
26 ERROR=0 102 ERROR=0
27 103
28 [ -z "${1}" ] && ERROR=1 104 [ -z "${1}" ] && ERROR=1
29 [ -z "${2}" ] && ERROR=1
30 [ ! -f "${2}" ] && ERROR=1 105 [ ! -f "${2}" ] && ERROR=1
31 106
32 if [ "${ERROR}" = 1 ] 107 if [ "${ERROR}" = 1 ]
33 then 108 then
109 echo -e "\n"
34 eerror "getfilevar requires 2 variables, with the second a valid file." 110 eerror "getfilevar requires 2 variables, with the second a valid file."
35 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 111 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
36 else 112 else
37 grep -e "^$1" $2 | sed 's: = :=:' | cut -d= -f2- 113 workingdir="${PWD}"
38 fi 114 basefname="$(basename ${2})"
39} 115 basedname="$(dirname ${2})"
116 unset ARCH
40 117
41getfilevar_isset() { 118 cd "${basedname}"
119 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \
120 make ${BUILD_FIXES} -s -f - e 2>/dev/null
121 cd "${workingdir}"
122
123 ARCH=${myARCH}
124 fi
125}
126
127linux_chkconfig_present() {
42local RESULT 128local RESULT
43 RESULT="$(getfilevar ${1} ${2})" 129 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
44 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 130 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
45} 131}
46 132
47getfilevar_ismodule() { 133linux_chkconfig_module() {
48local RESULT 134local RESULT
49 RESULT="$(getfilevar ${1} ${2})" 135 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
50 [ "${RESULT}" = "m" ] && return 0 || return 1 136 [ "${RESULT}" = "m" ] && return 0 || return 1
51} 137}
52 138
53getfilevar_isbuiltin() { 139linux_chkconfig_builtin() {
54local RESULT 140local RESULT
55 RESULT="$(getfilevar ${1} ${2})" 141 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
56 [ "${RESULT}" = "y" ] && return 0 || return 1 142 [ "${RESULT}" = "y" ] && return 0 || return 1
143}
144
145linux_chkconfig_string() {
146 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config"
57} 147}
58 148
59# Versioning Functions 149# Versioning Functions
60# --------------------------------------- 150# ---------------------------------------
61 151
71# got the jist yet? 161# got the jist yet?
72 162
73kernel_is() { 163kernel_is() {
74 # if we haven't determined the version yet, we need too. 164 # if we haven't determined the version yet, we need too.
75 get_version; 165 get_version;
76 166 local operator test value x=0 y=0 z=0
77 local RESULT 167
78 RESULT=1 168 case ${1} in
79 169 lt) operator="-lt"; shift;;
80 if [ -n "${1}" ] 170 gt) operator="-gt"; shift;;
81 then 171 le) operator="-le"; shift;;
82 [ "${1}" = "${KV_MAJOR}" ] && RESULT=0 172 ge) operator="-ge"; shift;;
83 fi 173 eq) operator="-eq"; shift;;
84 174 *) operator="-eq";;
85 if [ -n "${2}" ] 175 esac
86 then 176
87 RESULT=1 177 for x in ${@}; do
88 [ "${2}" = "${KV_MINOR}" ] && RESULT=0 178 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
89 fi 179 value="${value}${x}"
90 180 z=$((${z} + 1))
91 if [ -n "${3}" ] 181
92 then 182 case ${z} in
93 RESULT=1 183 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
94 [ "${3}" = "${KV_PATCH}" ] && RESULT=0 184 test="${test}${KV_MAJOR}";;
95 fi 185 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
96 return ${RESULT} 186 test="${test}${KV_MINOR}";;
187 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
188 test="${test}${KV_PATCH}";;
189 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
190 esac
191 done
192
193 [ ${test} ${operator} ${value} ] && return 0 || return 1
194}
195
196get_localversion() {
197 local lv_list i x
198
199 # ignore files with ~ in it.
200 for i in $(ls ${1}/localversion* 2>/dev/null); do
201 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
202 done
203
204 for i in ${lv_list}; do
205 x="${x}$(<${i})"
206 done
207 x=${x/ /}
208 echo ${x}
97} 209}
98 210
99get_version() { 211get_version() {
212 local kbuild_output
213
100 # no need to execute this twice assuming KV_FULL is populated. 214 # no need to execute this twice assuming KV_FULL is populated.
101 # we can force by unsetting KV_FULL 215 # we can force by unsetting KV_FULL
102 if [ -n "${KV_FULL}" ] 216 [ -n "${KV_FULL}" ] && return 0
103 then
104 # Lets keep this quiet eh?
105 # einfo "\${KV_FULL} is already set. Not running get_version again"
106 return
107 fi
108 217
109 # if we dont know KV_FULL, then we need too. 218 # if we dont know KV_FULL, then we need too.
110 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 219 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
111 unset KV_DIR 220 unset KV_DIR
112 221
113 # KV_DIR will contain the full path to the sources directory we should use 222 # KV_DIR will contain the full path to the sources directory we should use
114 einfo "Determining the location of the kernel source code" 223 qeinfo "Determining the location of the kernel source code"
115 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 224 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
116 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 225 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
117 226
118 if [ -z "${KV_DIR}" ] 227 if [ -z "${KV_DIR}" ]
119 then 228 then
120 eerror "Unable to find kernel sources at ${KERNEL_DIR}" 229 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
121 die 230 qeinfo "This package requires Linux sources."
231 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
232 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
233 qeinfo "(or the kernel you wish to build against)."
234 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
235 else
236 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
122 fi 237 fi
123 238 return 1
239 fi
240
241 qeinfo "Found kernel source directory:"
242 qeinfo " ${KV_DIR}"
243
244 if [ ! -s "${KV_DIR}/Makefile" ]
245 then
246 qeerror "Could not find a Makefile in the kernel source directory."
247 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
248 return 1
249 fi
250
251 # OK so now we know our sources directory, but they might be using
252 # KBUILD_OUTPUT, and we need this for .config and localversions-*
253 # so we better find it eh?
254 # do we pass KBUILD_OUTPUT on the CLI?
255 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
256
257 # And if we didn't pass it, we can take a nosey in the Makefile
258 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)"
259 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
260
124 # And contrary to existing functions I feel we shouldn't trust the 261 # And contrary to existing functions I feel we shouldn't trust the
125 # directory name to find version information as this seems insane. 262 # directory name to find version information as this seems insane.
126 # so we parse ${KV_DIR}/Makefile 263 # so we parse ${KV_DIR}/Makefile
127 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 264 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)"
128 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 265 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)"
129 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 266 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)"
130 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 267 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)"
268
269 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
270 then
271 qeerror "Could not detect kernel version."
272 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
273 return 1
274 fi
275
131 # and in newer versions we can also pull LOCALVERSION if it is set. 276 # and in newer versions we can also pull LOCALVERSION if it is set.
132 KV_LOCAL="$(cat ${KV_DIR}/localversion* 2>/dev/null)$(getfilevar CONFIG_LOCALVERSION ${KV_DIR}/.config | sed 's:"::g')" 277 # but before we do this, we need to find if we use a different object directory.
133 278 # This *WILL* break if the user is using localversions, but we assume it was
279 # caught before this if they are.
280 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
281 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}"
282
283 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
284 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
285 if [ -n "${KV_OUT_DIR}" ];
286 then
287 qeinfo "Found kernel object directory:"
288 qeinfo " ${KV_OUT_DIR}"
289
290 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
291 fi
292 # and if we STILL haven't got it, then we better just set it to KV_DIR
293 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
294
295 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
296 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
297 KV_LOCAL="${KV_LOCAL//\"/}"
298
134 # And we should set KV_FULL to the full expanded version 299 # And we should set KV_FULL to the full expanded version
135 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 300 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
136 301
137 if [ -z "${KV_FULL}" ] 302 qeinfo "Found sources for kernel version:"
303 qeinfo " ${KV_FULL}"
304
305 if [ ! -s "${KV_OUT_DIR}/.config" ]
138 then 306 then
139 eerror "We are unable to find a usable kernel source tree in ${KV_DIR}" 307 qeerror "Could not find a usable .config in the kernel source directory."
140 eerror "Please check a kernel source exists in this directory." 308 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
141 die 309 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
310 qeerror "it points to the necessary object directory so that it might find .config."
311 return 1
312 fi
313
314 return 0
315}
316
317get_running_version() {
318 KV_FULL=$(uname -r)
319
320 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
321 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
322 unset KV_FULL
323 get_version
324 return $?
325 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
326 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
327 unset KV_FULL
328 get_version
329 return $?
142 else 330 else
143 einfo "Found kernel source directory:" 331 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
144 einfo " ${KV_DIR}" 332 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
145 einfo "with sources for kernel version:" 333 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
146 einfo " ${KV_FULL}" 334 KV_PATCH=${KV_PATCH//-*}
335 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
336 && KV_EXTRA="-${KV_FULL#*-}"
147 fi 337 fi
338 return 0
148} 339}
149
150
151 340
152 341
153# ebuild check functions 342# ebuild check functions
154# --------------------------------------- 343# ---------------------------------------
155 344
156check_kernel_built() { 345check_kernel_built() {
157 # if we haven't determined the version yet, we need too. 346 # if we haven't determined the version yet, we need too.
158 get_version; 347 get_version;
159 348
160 if [ ! -f "${KV_DIR}/System.map" ] 349 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
161 then 350 then
162 eerror "These sources have not yet been compiled." 351 eerror "These sources have not yet been prepared."
163 eerror "We cannot build against an uncompiled tree." 352 eerror "We cannot build against an unprepared tree."
164 eerror "To resolve this, please type the following:" 353 eerror "To resolve this, please type the following:"
165 eerror 354 eerror
166 eerror "# cd ${KV_DIR}" 355 eerror "# cd ${KV_DIR}"
167 eerror "# make oldconfig" 356 eerror "# make oldconfig"
168 eerror "# make bzImage modules modules_install" 357 eerror "# make modules_prepare"
169 eerror 358 eerror
170 eerror "Then please try merging this module again." 359 eerror "Then please try merging this module again."
171 die "Kernel sources need compiling first" 360 die "Kernel sources need compiling first"
172 fi 361 fi
173} 362}
174 363
175check_modules_supported() { 364check_modules_supported() {
176 # if we haven't determined the version yet, we need too. 365 # if we haven't determined the version yet, we need too.
177 get_version; 366 get_version;
178 367
179 getfilevar_isset CONFIG_MODULES ${KV_DIR}/.config 368 if ! linux_chkconfig_builtin "MODULES"
180 if [ "$?" != 0 ]
181 then 369 then
182 eerror "These sources do not support loading external modules." 370 eerror "These sources do not support loading external modules."
183 eerror "to be able to use this module please enable \"Loadable modules support\"" 371 eerror "to be able to use this module please enable \"Loadable modules support\""
184 eerror "in your kernel, recompile and then try merging this module again." 372 eerror "in your kernel, recompile and then try merging this module again."
373 die "No support for external modules in ${KV_FULL} config"
374 fi
375}
376
377check_extra_config() {
378 local config negate error local_error i n
379 local temp_config die reworkmodulenames
380
381 # if we haven't determined the version yet, we need too.
382 get_version;
383
384 einfo "Checking for suitable kernel configuration options:"
385 for config in ${CONFIG_CHECK}
386 do
387 # if we specify any fatal, ensure we honor them
388 die=1
389 error=0
390 negate=0
391 reworkmodulenames=0
392
393 if [[ -z ${config//\!*} ]]; then
394 negate=1
395 config=${config:1}
396 fi
397 if [[ -z ${config/\@*} ]]; then
398 die=2
399 reworkmodulenames=1
400 config=${config:1}
401 fi
402 if [[ -z ${config/\~*} ]]; then
403 die=0
404 config=${config:1}
405 fi
406
407 if [[ ${negate} == 1 ]]; then
408 linux_chkconfig_present ${config} && error=2
409 elif [[ ${reworkmodulenames} == 1 ]]; then
410 temp_config="${config//*:}"
411 config="${config//:*}"
412 if linux_chkconfig_present ${config}; then
413 for i in ${MODULE_NAMES}; do
414 n="${i//${temp_config}}"
415 [[ -z ${n//\(*} ]] && \
416 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
417 done
418 error=2
419 fi
420 else
421 linux_chkconfig_present ${config} || error=1
422 fi
423
424 if [[ ${die} == 0 ]]; then
425 ebegin "CONFIG_${config}"
426 eend ${error}
427 else
428 if [[ ${error} > 0 ]]; then
429 local_error="ERROR_${config}"
430 local_error="${!local_error}"
431
432 if [[ -z "${local_error}" ]]; then
433 # using old, deprecated format.
434 local_error="${config}_ERROR"
435 local_error="${!local_error}"
436 fi
437
438 if [[ -z "${local_error}" ]]; then
439 [[ ${error} == 1 ]] \
440 && local_error="is not set when it should be." \
441 || local_error="should not be set. But it is."
442 local_error="CONFIG_${config}:\t ${local_error}"
443 fi
444 eerror " ${local_error}"
445 fi
446 fi
447 done
448
449 if [[ ${error} > 0 ]]; then
450 eerror "Please check to make sure these options are set correctly."
451 eerror "Failure to do so may cause unexpected problems."
452 if [[ ${die} == 1 ]]; then
453 eerror "Once you have satisfied these options, please try merging"
454 eerror "this package again."
455 die "Incorrect kernel configuration options"
456 fi
185 fi 457 fi
186} 458}
187 459
188check_zlibinflate() { 460check_zlibinflate() {
189 # if we haven't determined the version yet, we need too. 461 # if we haven't determined the version yet, we need too.
190 get_version; 462 get_version;
191 463
192 # although I restructured this code - I really really really dont support it! 464 # although I restructured this code - I really really really dont support it!
193 465
194 # bug #27882 - zlib routines are only linked into the kernel 466 # bug #27882 - zlib routines are only linked into the kernel
195 # if something compiled into the kernel calls them 467 # if something compiled into the kernel calls them
196 # 468 #
197 # plus, for the cloop module, it appears that there's no way 469 # plus, for the cloop module, it appears that there's no way
198 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS 470 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
199 # is on 471 # is on
200 472
201local INFLATE 473 local INFLATE
202local DEFLATE 474 local DEFLATE
203 475
204 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 476 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
205 477
206 ebegin "checking ZLIB_INFLATE" 478 ebegin "checking ZLIB_INFLATE"
207 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 479 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config
208 eend $? 480 eend $?
209 [ "$?" != 0 ] && die 481 [ "$?" != 0 ] && die
210 482
211 ebegin "checking ZLIB_DEFLATE" 483 ebegin "checking ZLIB_DEFLATE"
212 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 484 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config
213 eend $? 485 eend $?
214 [ "$?" != 0 ] && die 486 [ "$?" != 0 ] && die
215 487
216
217 local LINENO_START 488 local LINENO_START
218 local LINENO_END 489 local LINENO_END
219 local SYMBOLS 490 local SYMBOLS
220 local x 491 local x
221 492
222 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 493 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
223 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)" 494 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)"
224 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 495 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
225 (( LINENO_END = $LINENO_END - 1 )) 496 (( LINENO_END = $LINENO_END - 1 ))
226 SYMBOLS="$(head -n $LINENO_END ${KERNEL_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')" 497 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
227 498
228 # okay, now we have a list of symbols 499 # okay, now we have a list of symbols
229 # we need to check each one in turn, to see whether it is set or not 500 # we need to check each one in turn, to see whether it is set or not
230 for x in $SYMBOLS ; do 501 for x in $SYMBOLS ; do
231 if [ "${!x}" = "y" ]; then 502 if [ "${!x}" = "y" ]; then
232 # we have a winner! 503 # we have a winner!
233 einfo "${x} ensures zlib is linked into your kernel - excellent" 504 einfo "${x} ensures zlib is linked into your kernel - excellent"
234 return 0 505 return 0
235 fi 506 fi
236 done 507 done
237 508
238 eerror 509 eerror
239 eerror "This kernel module requires ZLIB library support." 510 eerror "This kernel module requires ZLIB library support."
240 eerror "You have enabled zlib support in your kernel, but haven't enabled" 511 eerror "You have enabled zlib support in your kernel, but haven't enabled"
241 eerror "enabled any option that will ensure that zlib is linked into your" 512 eerror "enabled any option that will ensure that zlib is linked into your"
242 eerror "kernel." 513 eerror "kernel."
252 eerror "Please remember to recompile and install your kernel, and reboot" 523 eerror "Please remember to recompile and install your kernel, and reboot"
253 eerror "into your new kernel before attempting to load this kernel module." 524 eerror "into your new kernel before attempting to load this kernel module."
254 525
255 die "Kernel doesn't include zlib support" 526 die "Kernel doesn't include zlib support"
256} 527}
528
529################################
530# Default pkg_setup
531# Also used when inheriting linux-mod to force a get_version call
532
533linux-info_pkg_setup() {
534 get_version || die "Unable to calculate Linux Kernel version"
535 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
536}

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