/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.3 Revision 1.41
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 1.3 2004/11/27 11:26:52 johnm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.41 2006/03/03 22:03:35 johnm 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
16 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 "${@}" ; }
95qeerror() { qout eerror "${@}" ; }
17 96
18# File Functions 97# File Functions
19# --------------------------------------- 98# ---------------------------------------
20 99
21# getfilevar accepts 2 vars as follows: 100# getfilevar accepts 2 vars as follows:
22# getfilevar <VARIABLE> <CONFIGFILE> 101# getfilevar <VARIABLE> <CONFIGFILE>
23 102
24getfilevar() { 103getfilevar() {
25local ERROR 104local ERROR workingdir basefname basedname myARCH="${ARCH}"
26 ERROR=0 105 ERROR=0
27 106
28 [ -z "${1}" ] && ERROR=1 107 [ -z "${1}" ] && ERROR=1
29 [ -z "${2}" ] && ERROR=1
30 [ ! -f "${2}" ] && ERROR=1 108 [ ! -f "${2}" ] && ERROR=1
31 109
32 if [ "${ERROR}" = 1 ] 110 if [ "${ERROR}" = 1 ]
33 then 111 then
112 echo -e "\n"
34 eerror "getfilevar requires 2 variables, with the second a valid file." 113 eerror "getfilevar requires 2 variables, with the second a valid file."
35 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 114 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
36 else 115 else
37 grep -e "^$1[= ]" $2 | sed 's: = :=:' | cut -d= -f2- 116 workingdir="${PWD}"
38 fi 117 basefname="$(basename ${2})"
39} 118 basedname="$(dirname ${2})"
119 unset ARCH
40 120
41getfilevar_isset() { 121 cd "${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=${myARCH}
127 fi
128}
129
130linux_chkconfig_present() {
42local RESULT 131local RESULT
43 RESULT="$(getfilevar ${1} ${2})" 132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
44 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
45} 134}
46 135
47getfilevar_ismodule() { 136linux_chkconfig_module() {
48local RESULT 137local RESULT
49 RESULT="$(getfilevar ${1} ${2})" 138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
50 [ "${RESULT}" = "m" ] && return 0 || return 1 139 [ "${RESULT}" = "m" ] && return 0 || return 1
51} 140}
52 141
53getfilevar_isbuiltin() { 142linux_chkconfig_builtin() {
54local RESULT 143local RESULT
55 RESULT="$(getfilevar ${1} ${2})" 144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
56 [ "${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"
57} 150}
58 151
59# Versioning Functions 152# Versioning Functions
60# --------------------------------------- 153# ---------------------------------------
61 154
71# got the jist yet? 164# got the jist yet?
72 165
73kernel_is() { 166kernel_is() {
74 # if we haven't determined the version yet, we need too. 167 # if we haven't determined the version yet, we need too.
75 get_version; 168 get_version;
76 169 local operator test value x=0 y=0 z=0
77 local RESULT 170
78 RESULT=1 171 case ${1} in
79 172 lt) operator="-lt"; shift;;
80 if [ -n "${1}" ] 173 gt) operator="-gt"; shift;;
81 then 174 le) operator="-le"; shift;;
82 [ "${1}" = "${KV_MAJOR}" ] && RESULT=0 175 ge) operator="-ge"; shift;;
83 fi 176 eq) operator="-eq"; shift;;
84 177 *) operator="-eq";;
85 if [ -n "${2}" ] 178 esac
86 then 179
87 RESULT=1 180 for x in ${@}; do
88 [ "${2}" = "${KV_MINOR}" ] && RESULT=0 181 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
89 fi 182 value="${value}${x}"
90 183 z=$((${z} + 1))
91 if [ -n "${3}" ] 184
92 then 185 case ${z} in
93 RESULT=1 186 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
94 [ "${3}" = "${KV_PATCH}" ] && RESULT=0 187 test="${test}${KV_MAJOR}";;
95 fi 188 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
96 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 ${x}
97} 212}
98 213
99get_version() { 214get_version() {
215 local kbuild_output
216
100 # no need to execute this twice assuming KV_FULL is populated. 217 # no need to execute this twice assuming KV_FULL is populated.
101 # we can force by unsetting KV_FULL 218 # we can force by unsetting KV_FULL
102 if [ -n "${KV_FULL}" ] 219 [ -n "${KV_FULL}" ] && return 0
103 then
104 # Lets keep this quiet eh?
105 # einfo "\${KV_FULL} is already set. Not running get_version again"
106 return
107 fi
108 220
109 # if we dont know KV_FULL, then we need too. 221 # if we dont know KV_FULL, then we need too.
110 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 222 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
111 unset KV_DIR 223 unset KV_DIR
112 224
113 # KV_DIR will contain the full path to the sources directory we should use 225 # KV_DIR will contain the full path to the sources directory we should use
114 einfo "Determining the location of the kernel source code" 226 qeinfo "Determining the location of the kernel source code"
115 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
116 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
117 229
118 if [ -z "${KV_DIR}" ] 230 if [ -z "${KV_DIR}" ]
119 then 231 then
120 eerror "Unable to find kernel sources at ${KERNEL_DIR}" 232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
121 die 233 qeinfo "This package requires Linux sources."
234 if [ "${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."
122 fi 240 fi
123 241 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
124 # 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
125 # directory name to find version information as this seems insane. 265 # directory name to find version information as this seems insane.
126 # so we parse ${KV_DIR}/Makefile 266 # so we parse ${KV_DIR}/Makefile
127 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)"
128 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)"
129 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)"
130 KV_EXTRA="$(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 ${KERNEL_DIR} points to a complete set of Linux sources."
276 return 1
277 fi
278
131 # and in newer versions we can also pull LOCALVERSION if it is set. 279 # and in newer versions we can also pull LOCALVERSION if it is set.
132 KV_LOCAL="$(cat ${KV_DIR}/localversion* 2>/dev/null)$(getfilevar CONFIG_LOCALVERSION ${KV_DIR}/.config | sed 's:"::g')" 280 # but before we do this, we need to find if we use a different object directory.
133 281 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are.
283 [ "${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 ${KV_OUT_DIR})"
294 fi
295 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297
298 if [ ! -s "${KV_OUT_DIR}/.config" ]
299 then
300 qeerror "Could not find a usable .config in the kernel source directory."
301 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
302 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
303 qeerror "it points to the necessary object directory so that it might find .config."
304 return 1
305 fi
306
307 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
308 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
309 KV_LOCAL="${KV_LOCAL//\"/}"
310
134 # And we should set KV_FULL to the full expanded version 311 # And we should set KV_FULL to the full expanded version
135 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 312 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
136 313
137 if [ -z "${KV_FULL}" ] 314 qeinfo "Found sources for kernel version:"
138 then 315 qeinfo " ${KV_FULL}"
139 eerror "We are unable to find a usable kernel source tree in ${KV_DIR}" 316
140 eerror "Please check a kernel source exists in this directory." 317 return 0
141 die 318}
319
320get_running_version() {
321 KV_FULL=$(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 $?
142 else 333 else
143 einfo "Found kernel source directory:" 334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
144 einfo " ${KV_DIR}" 335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
145 einfo "with sources for kernel version:" 336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
146 einfo " ${KV_FULL}" 337 KV_PATCH=${KV_PATCH//-*}
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
339 && KV_EXTRA="-${KV_FULL#*-}"
147 fi 340 fi
341 return 0
148} 342}
149
150
151 343
152 344
153# ebuild check functions 345# ebuild check functions
154# --------------------------------------- 346# ---------------------------------------
155 347
156check_kernel_built() { 348check_kernel_built() {
157 # if we haven't determined the version yet, we need too. 349 # if we haven't determined the version yet, we need too.
158 get_version; 350 get_version;
159 351
160 if [ ! -f "${KV_DIR}/System.map" ] 352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
161 then 353 then
162 eerror "These sources have not yet been compiled." 354 eerror "These sources have not yet been prepared."
163 eerror "We cannot build against an uncompiled tree." 355 eerror "We cannot build against an unprepared tree."
164 eerror "To resolve this, please type the following:" 356 eerror "To resolve this, please type the following:"
165 eerror 357 eerror
166 eerror "# cd ${KV_DIR}" 358 eerror "# cd ${KV_DIR}"
167 eerror "# make oldconfig" 359 eerror "# make oldconfig"
168 eerror "# make bzImage modules modules_install" 360 eerror "# make modules_prepare"
169 eerror 361 eerror
170 eerror "Then please try merging this module again." 362 eerror "Then please try merging this module again."
171 die "Kernel sources need compiling first" 363 die "Kernel sources need compiling first"
172 fi 364 fi
173} 365}
174 366
175check_modules_supported() { 367check_modules_supported() {
176 # if we haven't determined the version yet, we need too. 368 # if we haven't determined the version yet, we need too.
177 get_version; 369 get_version;
178 370
179 getfilevar_isset CONFIG_MODULES ${KV_DIR}/.config 371 if ! linux_chkconfig_builtin "MODULES"
180 if [ "$?" != 0 ]
181 then 372 then
182 eerror "These sources do not support loading external modules." 373 eerror "These sources do not support loading external modules."
183 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\""
184 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."
185 die No support for external modules in ${KV_FUll} config 376 die "No support for external modules in ${KV_FULL} config"
186 fi 377 fi
187} 378}
188 379
189check_extra_config() { 380check_extra_config() {
190local config negate error 381 local config negate error local_error i n
382 local temp_config die reworkmodulenames
191 383
192 # if we haven't determined the version yet, we need too. 384 # if we haven't determined the version yet, we need too.
193 get_version; 385 get_version;
194 386
195 einfo "Checking for suitable kernel configuration options" 387 einfo "Checking for suitable kernel configuration options:"
196 for config in ${CONFIG_CHECK} 388 for config in ${CONFIG_CHECK}
197 do 389 do
198 negate="${config:0:1}" 390 # if we specify any fatal, ensure we honor them
199 if [ "${negate}" == "!" ]; 391 die=1
200 then 392 error=0
393 negate=0
394 reworkmodulenames=0
395
396 if [[ -z ${config//\!*} ]]; then
397 negate=1
201 config="${config:1}" 398 config=${config:1}
202 if getfilevar_isset ${config} ${KV_DIR}/.config ; 399 fi
203 then 400 if [[ -z ${config/\@*} ]]; then
204 eerror " ${config}:\tshould not be set in the kernel configuration, but it is." 401 die=2
402 reworkmodulenames=1
403 config=${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
205 error=1 421 error=2
206 fi 422 fi
207 else 423 else
208 if ! getfilevar_isset ${config} ${KV_DIR}/.config ; 424 linux_chkconfig_present ${config} || error=1
209 then 425 fi
210 eerror " ${config}:\tshould be set in the kernel configuration, but isn't" 426
211 error=1 427 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 " ${local_error}"
212 fi 448 fi
213 fi 449 fi
214 done 450 done
215 451
216 if [ -n "${error}" ] ; 452 if [[ ${error} > 0 ]]; then
217 then
218 eerror "Please check to make sure these options are set correctly." 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
219 eerror "Once you have satisfied these options, please try merging" 456 eerror "Once you have satisfied these options, please try merging"
220 eerror "this package again." 457 eerror "this package again."
221 die Incorrect kernel configuration options 458 die "Incorrect kernel configuration options"
459 fi
222 fi 460 fi
223} 461}
224 462
225check_zlibinflate() { 463check_zlibinflate() {
226 # if we haven't determined the version yet, we need too. 464 # if we haven't determined the version yet, we need too.
227 get_version; 465 get_version;
228 466
229 # 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!
230 468
231 # bug #27882 - zlib routines are only linked into the kernel 469 # bug #27882 - zlib routines are only linked into the kernel
232 # if something compiled into the kernel calls them 470 # if something compiled into the kernel calls them
233 # 471 #
234 # 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
235 # 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
236 # is on 474 # is on
237 475
238local INFLATE 476 local INFLATE
239local DEFLATE 477 local DEFLATE
240 478
241 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
242 480
243 ebegin "checking ZLIB_INFLATE" 481 ebegin "checking ZLIB_INFLATE"
244 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config
245 eend $? 483 eend $?
246 [ "$?" != 0 ] && die 484 [ "$?" != 0 ] && die
247 485
248 ebegin "checking ZLIB_DEFLATE" 486 ebegin "checking ZLIB_DEFLATE"
249 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config
250 eend $? 488 eend $?
251 [ "$?" != 0 ] && die 489 [ "$?" != 0 ] && die
252 490
253
254 local LINENO_START 491 local LINENO_START
255 local LINENO_END 492 local LINENO_END
256 local SYMBOLS 493 local SYMBOLS
257 local x 494 local x
258 495
259 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 496 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
260 LINENO_START="$(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)"
261 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 498 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
262 (( LINENO_END = $LINENO_END - 1 )) 499 (( LINENO_END = $LINENO_END - 1 ))
263 SYMBOLS="$(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;')"
264 501
265 # okay, now we have a list of symbols 502 # okay, now we have a list of symbols
266 # 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
267 for x in $SYMBOLS ; do 504 for x in $SYMBOLS ; do
268 if [ "${!x}" = "y" ]; then 505 if [ "${!x}" = "y" ]; then
269 # we have a winner! 506 # we have a winner!
270 einfo "${x} ensures zlib is linked into your kernel - excellent" 507 einfo "${x} ensures zlib is linked into your kernel - excellent"
271 return 0 508 return 0
272 fi 509 fi
273 done 510 done
274 511
275 eerror 512 eerror
276 eerror "This kernel module requires ZLIB library support." 513 eerror "This kernel module requires ZLIB library support."
277 eerror "You have enabled zlib support in your kernel, but haven't enabled" 514 eerror "You have enabled zlib support in your kernel, but haven't enabled"
278 eerror "enabled any option that will ensure that zlib is linked into your" 515 eerror "enabled any option that will ensure that zlib is linked into your"
279 eerror "kernel." 516 eerror "kernel."
289 eerror "Please remember to recompile and install your kernel, and reboot" 526 eerror "Please remember to recompile and install your kernel, and reboot"
290 eerror "into your new kernel before attempting to load this kernel module." 527 eerror "into your new kernel before attempting to load this kernel module."
291 528
292 die "Kernel doesn't include zlib support" 529 die "Kernel doesn't include zlib support"
293} 530}
531
532################################
533# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call
535
536linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version"
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539}

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