/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.2 Revision 1.40
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 1.2 2004/11/25 19:47:18 johnm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.40 2006/02/16 21:46:50 exg 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
56
57DEPEND="kernel_linux? ( virtual/linux-sources )"
58RDEPEND=""
11 59
12# Overwritable environment Var's 60# Overwritable environment Var's
13# --------------------------------------- 61# ---------------------------------------
14KERNEL_DIR="${KERNEL_DIR:-/usr/src/linux}" 62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
15 63
64
65# Bug fixes
66# fix to bug #75034
67case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac
71
72# These are legacy wrappers for toolchain-funcs.
73# I dont like them here, but oh well.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; }
75set_arch_to_portage() { export ARCH="$(tc-arch)"; }
76
77# qeinfo "Message"
78# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output.
81qout() {
82 local outputmsg type
83 type=${1}
84 shift
85 outputmsg="${@}"
86 case "${EBUILD_PHASE}" in
87 depend) unset outputmsg;;
88 clean) unset outputmsg;;
89 preinst) unset outputmsg;;
90 esac
91 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
92}
93
94qeinfo() { qout einfo "${@}" ; }
95qeerror() { qout eerror "${@}" ; }
16 96
17# File Functions 97# File Functions
18# --------------------------------------- 98# ---------------------------------------
19 99
20# getfilevar accepts 2 vars as follows: 100# getfilevar accepts 2 vars as follows:
21# getfilevar <VARIABLE> <CONFIGFILE> 101# getfilevar <VARIABLE> <CONFIGFILE>
22 102
23getfilevar() { 103getfilevar() {
24local ERROR 104local ERROR workingdir basefname basedname myARCH="${ARCH}"
25 ERROR=0 105 ERROR=0
26 106
27 [ -z "${1}" ] && ERROR=1 107 [ -z "${1}" ] && ERROR=1
28 [ -z "${2}" ] && ERROR=1
29 [ ! -f "${2}" ] && ERROR=1 108 [ ! -f "${2}" ] && ERROR=1
30 109
31 if [ "${ERROR}" = 1 ] 110 if [ "${ERROR}" = 1 ]
32 then 111 then
112 echo -e "\n"
33 eerror "getfilevar requires 2 variables, with the second a valid file." 113 eerror "getfilevar requires 2 variables, with the second a valid file."
34 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 114 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
35 else 115 else
36 grep -e "^$1" $2 | sed 's: = :=:' | cut -d= -f2- 116 workingdir="${PWD}"
37 fi 117 basefname="$(basename ${2})"
38} 118 basedname="$(dirname ${2})"
119 unset ARCH
39 120
40getfilevar_isset() { 121 cd "${basedname}"
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \
123 make ${BUILD_FIXES} -s -f - e 2>/dev/null
124 cd "${workingdir}"
125
126 ARCH=${myARCH}
127 fi
128}
129
130linux_chkconfig_present() {
41local RESULT 131local RESULT
42 RESULT="$(getfilevar ${1} ${2})" 132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
43 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
44} 134}
45 135
46getfilevar_ismodule() { 136linux_chkconfig_module() {
47local RESULT 137local RESULT
48 RESULT="$(getfilevar ${1} ${2})" 138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
49 [ "${RESULT}" = "m" ] && return 0 || return 1 139 [ "${RESULT}" = "m" ] && return 0 || return 1
50} 140}
51 141
52getfilevar_isbuiltin() { 142linux_chkconfig_builtin() {
53local RESULT 143local RESULT
54 RESULT="$(getfilevar ${1} ${2})" 144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
55 [ "${RESULT}" = "y" ] && return 0 || return 1 145 [ "${RESULT}" = "y" ] && return 0 || return 1
146}
147
148linux_chkconfig_string() {
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config"
56} 150}
57 151
58# Versioning Functions 152# Versioning Functions
59# --------------------------------------- 153# ---------------------------------------
60 154
64# kernel_is 2 4 returns false 158# kernel_is 2 4 returns false
65# kernel_is 2 returns true 159# kernel_is 2 returns true
66# kernel_is 2 6 returns true 160# kernel_is 2 6 returns true
67# kernel_is 2 6 8 returns false 161# kernel_is 2 6 8 returns false
68# kernel_is 2 6 9 returns true 162# kernel_is 2 6 9 returns true
163#
69# got the jist yet? 164# got the jist yet?
70 165
71kernel_is() { 166kernel_is() {
72 # if we haven't determined the version yet, we need too. 167 # if we haven't determined the version yet, we need too.
73 get_version; 168 get_version;
74 169 local operator test value x=0 y=0 z=0
75 local RESULT 170
76 RESULT=1 171 case ${1} in
77 172 lt) operator="-lt"; shift;;
78 if [ -n "${1}" ] 173 gt) operator="-gt"; shift;;
79 then 174 le) operator="-le"; shift;;
80 [ "${1}" = "${KV_MAJOR}" ] && RESULT=0 175 ge) operator="-ge"; shift;;
81 fi 176 eq) operator="-eq"; shift;;
82 177 *) operator="-eq";;
83 if [ -n "${2}" ] 178 esac
84 then 179
85 RESULT=1 180 for x in ${@}; do
86 [ "${2}" = "${KV_MINOR}" ] && RESULT=0 181 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
87 fi 182 value="${value}${x}"
88 183 z=$((${z} + 1))
89 if [ -n "${3}" ] 184
90 then 185 case ${z} in
91 RESULT=1 186 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
92 [ "${3}" = "${KV_PATCH}" ] && RESULT=0 187 test="${test}${KV_MAJOR}";;
93 fi 188 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
94 return ${RESULT} 189 test="${test}${KV_MINOR}";;
190 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
191 test="${test}${KV_PATCH}";;
192 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
193 esac
194 done
195
196 [ ${test} ${operator} ${value} ] && return 0 || return 1
197}
198
199get_localversion() {
200 local lv_list i x
201
202 # ignore files with ~ in it.
203 for i in $(ls ${1}/localversion* 2>/dev/null); do
204 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
205 done
206
207 for i in ${lv_list}; do
208 x="${x}$(<${i})"
209 done
210 x=${x/ /}
211 echo ${x}
95} 212}
96 213
97get_version() { 214get_version() {
215 local kbuild_output
216
98 # no need to execute this twice assuming KV_FULL is populated. 217 # no need to execute this twice assuming KV_FULL is populated.
99 # we can force by unsetting KV_FULL 218 # we can force by unsetting KV_FULL
100 if [ -n "${KV_FULL}" ] 219 [ -n "${KV_FULL}" ] && return 0
101 then
102 # Lets keep this quiet eh?
103 # einfo "\${KV_FULL} is already set. Not running get_version again"
104 return
105 fi
106 220
107 # if we dont know KV_FULL, then we need too. 221 # if we dont know KV_FULL, then we need too.
108 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 222 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
109 unset KV_DIR 223 unset KV_DIR
110 224
111 # KV_DIR will contain the full path to the sources directory we should use 225 # KV_DIR will contain the full path to the sources directory we should use
112 einfo "Determining the location of the kernel source code" 226 qeinfo "Determining the location of the kernel source code"
113 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
114 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
115 229
116 if [ -z "${KV_DIR}" ] 230 if [ -z "${KV_DIR}" ]
117 then 231 then
118 eerror "Unable to find kernel sources at ${KERNEL_DIR}" 232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
119 die 233 qeinfo "This package requires Linux sources."
234 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
235 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
120 fi 240 fi
121 241 return 1
242 fi
243
244 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}"
246
247 if [ ! -s "${KV_DIR}/Makefile" ]
248 then
249 qeerror "Could not find a Makefile in the kernel source directory."
250 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
251 return 1
252 fi
253
254 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
259
260 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263
122 # And contrary to existing functions I feel we shouldn't trust the 264 # And contrary to existing functions I feel we shouldn't trust the
123 # directory name to find version information as this seems insane. 265 # directory name to find version information as this seems insane.
124 # so we parse ${KV_DIR}/Makefile 266 # so we parse ${KV_DIR}/Makefile
125 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)"
126 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)"
127 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)"
128 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)"
271
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then
274 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
276 return 1
277 fi
278
129 # and in newer versions we can also pull LOCALVERSION if it is set. 279 # and in newer versions we can also pull LOCALVERSION if it is set.
130 KV_LOCAL="$(cat ${KV_DIR}/localversion* 2>/dev/null)$(getfilevar CONFIG_LOCALVERSION ${KV_DIR}/.config | sed 's:"::g')" 280 # but before we do this, we need to find if we use a different object directory.
131 281 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}"
285
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ];
289 then
290 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
300 KV_LOCAL="${KV_LOCAL//\"/}"
301
132 # And we should set KV_FULL to the full expanded version 302 # And we should set KV_FULL to the full expanded version
133 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
134 304
135 if [ -z "${KV_FULL}" ] 305 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}"
307
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
136 then 309 then
137 eerror "We are unable to find a usable kernel source tree in ${KV_DIR}" 310 qeerror "Could not find a usable .config in the kernel source directory."
138 eerror "Please check a kernel source exists in this directory." 311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
139 die 312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0
318}
319
320get_running_version() {
321 KV_FULL=$(uname -r)
322
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL
326 get_version
327 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
329 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
330 unset KV_FULL
331 get_version
332 return $?
140 else 333 else
141 einfo "Found kernel source directory:" 334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
142 einfo " ${KV_DIR}" 335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
143 einfo "with sources for kernel version:" 336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
144 einfo " ${KV_FULL}" 337 KV_PATCH=${KV_PATCH//-*}
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
339 && KV_EXTRA="-${KV_FULL#*-}"
145 fi 340 fi
341 return 0
146} 342}
147
148
149 343
150 344
151# ebuild check functions 345# ebuild check functions
152# --------------------------------------- 346# ---------------------------------------
153 347
154check_kernel_built() { 348check_kernel_built() {
155 # if we haven't determined the version yet, we need too. 349 # if we haven't determined the version yet, we need too.
156 get_version; 350 get_version;
157 351
158 if [ ! -f "${KV_DIR}/System.map" ] 352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
159 then 353 then
160 eerror "These sources have not yet been compiled." 354 eerror "These sources have not yet been prepared."
161 eerror "We cannot build against an uncompiled tree." 355 eerror "We cannot build against an unprepared tree."
162 eerror "To resolve this, please type the following:" 356 eerror "To resolve this, please type the following:"
163 eerror 357 eerror
164 eerror "# cd ${KV_DIR}" 358 eerror "# cd ${KV_DIR}"
165 eerror "# make oldconfig" 359 eerror "# make oldconfig"
166 eerror "# make bzImage modules modules_install" 360 eerror "# make modules_prepare"
167 eerror 361 eerror
168 eerror "Then please try merging this module again." 362 eerror "Then please try merging this module again."
169 die "Kernel sources need compiling first" 363 die "Kernel sources need compiling first"
170 fi 364 fi
171} 365}
172 366
173check_modules_supported() { 367check_modules_supported() {
174 # if we haven't determined the version yet, we need too. 368 # if we haven't determined the version yet, we need too.
175 get_version; 369 get_version;
176 370
177 getfilevar_isset CONFIG_MODULES ${KV_DIR}/.config 371 if ! linux_chkconfig_builtin "MODULES"
178 if [ "$?" != 0 ]
179 then 372 then
180 eerror "These sources do not support loading external modules." 373 eerror "These sources do not support loading external modules."
181 eerror "to be able to use this module please enable \"Loadable modules support\"" 374 eerror "to be able to use this module please enable \"Loadable modules support\""
182 eerror "in your kernel, recompile and then try merging this module again." 375 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config"
377 fi
378}
379
380check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames
383
384 # if we haven't determined the version yet, we need too.
385 get_version;
386
387 einfo "Checking for suitable kernel configuration options:"
388 for config in ${CONFIG_CHECK}
389 do
390 # if we specify any fatal, ensure we honor them
391 die=1
392 error=0
393 negate=0
394 reworkmodulenames=0
395
396 if [[ -z ${config//\!*} ]]; then
397 negate=1
398 config=${config:1}
399 fi
400 if [[ -z ${config/\@*} ]]; then
401 die=2
402 reworkmodulenames=1
403 config=${config:1}
404 fi
405 if [[ -z ${config/\~*} ]]; then
406 die=0
407 config=${config:1}
408 fi
409
410 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}"
414 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \
419 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
420 done
421 error=2
422 fi
423 else
424 linux_chkconfig_present ${config} || error=1
425 fi
426
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then
432 local_error="ERROR_${config}"
433 local_error="${!local_error}"
434
435 if [[ -z "${local_error}" ]]; then
436 # using old, deprecated format.
437 local_error="${config}_ERROR"
438 local_error="${!local_error}"
439 fi
440
441 if [[ -z "${local_error}" ]]; then
442 [[ ${error} == 1 ]] \
443 && local_error="is not set when it should be." \
444 || local_error="should not be set. But it is."
445 local_error="CONFIG_${config}:\t ${local_error}"
446 fi
447 eerror " ${local_error}"
448 fi
449 fi
450 done
451
452 if [[ ${error} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again."
458 die "Incorrect kernel configuration options"
459 fi
183 fi 460 fi
184} 461}
185 462
186check_zlibinflate() { 463check_zlibinflate() {
187 # if we haven't determined the version yet, we need too. 464 # if we haven't determined the version yet, we need too.
188 get_version; 465 get_version;
189 466
190 # although I restructured this code - I really really really dont support it! 467 # although I restructured this code - I really really really dont support it!
191 468
192 # bug #27882 - zlib routines are only linked into the kernel 469 # bug #27882 - zlib routines are only linked into the kernel
193 # if something compiled into the kernel calls them 470 # if something compiled into the kernel calls them
194 # 471 #
195 # plus, for the cloop module, it appears that there's no way 472 # plus, for the cloop module, it appears that there's no way
196 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS 473 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
197 # is on 474 # is on
198 475
199local INFLATE 476 local INFLATE
200local DEFLATE 477 local DEFLATE
201 478
202 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
203 480
204 ebegin "checking ZLIB_INFLATE" 481 ebegin "checking ZLIB_INFLATE"
205 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config
206 eend $? 483 eend $?
207 [ "$?" != 0 ] && die 484 [ "$?" != 0 ] && die
208 485
209 ebegin "checking ZLIB_DEFLATE" 486 ebegin "checking ZLIB_DEFLATE"
210 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config
211 eend $? 488 eend $?
212 [ "$?" != 0 ] && die 489 [ "$?" != 0 ] && die
213 490
214
215 local LINENO_START 491 local LINENO_START
216 local LINENO_END 492 local LINENO_END
217 local SYMBOLS 493 local SYMBOLS
218 local x 494 local x
219 495
220 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 496 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
221 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)" 497 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)"
222 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 498 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
223 (( LINENO_END = $LINENO_END - 1 )) 499 (( LINENO_END = $LINENO_END - 1 ))
224 SYMBOLS="$(head -n $LINENO_END ${KERNEL_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')" 500 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
225 501
226 # okay, now we have a list of symbols 502 # okay, now we have a list of symbols
227 # we need to check each one in turn, to see whether it is set or not 503 # we need to check each one in turn, to see whether it is set or not
228 for x in $SYMBOLS ; do 504 for x in $SYMBOLS ; do
229 if [ "${!x}" = "y" ]; then 505 if [ "${!x}" = "y" ]; then
230 # we have a winner! 506 # we have a winner!
231 einfo "${x} ensures zlib is linked into your kernel - excellent" 507 einfo "${x} ensures zlib is linked into your kernel - excellent"
232 return 0 508 return 0
233 fi 509 fi
234 done 510 done
235 511
236 eerror 512 eerror
237 eerror "This kernel module requires ZLIB library support." 513 eerror "This kernel module requires ZLIB library support."
238 eerror "You have enabled zlib support in your kernel, but haven't enabled" 514 eerror "You have enabled zlib support in your kernel, but haven't enabled"
239 eerror "enabled any option that will ensure that zlib is linked into your" 515 eerror "enabled any option that will ensure that zlib is linked into your"
240 eerror "kernel." 516 eerror "kernel."
250 eerror "Please remember to recompile and install your kernel, and reboot" 526 eerror "Please remember to recompile and install your kernel, and reboot"
251 eerror "into your new kernel before attempting to load this kernel module." 527 eerror "into your new kernel before attempting to load this kernel module."
252 528
253 die "Kernel doesn't include zlib support" 529 die "Kernel doesn't include zlib support"
254} 530}
531
532################################
533# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call
535
536linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version"
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539}

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