/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.3 Revision 1.30
1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2004 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 1.30 2005/07/14 19:33:52 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 $ECLASS" 17# These are as follows:
18#
19# Env Var Option Description
20# KERNEL_DIR <string> The directory containing kernel the target kernel
21# sources.
22# CONFIG_CHECK <string> a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR"
24# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!).
26# ie: CONFIG_CHECK="!MTRR"
27# ERROR_CFG <string> The error message to display when the above check
28# fails. <CFG> should reference the appropriate option
29# as above. ie: ERROR_MTRR="MTRR exists in the .config
30# but shouldn't!!"
31# KBUILD_OUTPUT <string> This is passed on commandline, or can be set from
32# the kernel makefile. This contains the directory
33# which is to be used as the kernel object directory.
34
35# There are also a couple of variables which are set by this, and shouldn't be
36# set by hand. These are as follows:
37#
38# Env Var Option Description
39# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1
40# KV_MAJOR <integer> The kernel major version. ie: 2
41# KV_MINOR <integer> The kernel minor version. ie: 6
42# KV_PATCH <integer> The kernel patch version. ie: 9
43# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo
44# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm
45# KV_DIR <string> The kernel source directory, will be null if
46# KERNEL_DIR is invalid.
47# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless
48# koutput is used. This should be used for referencing
49# .config.
50
51# And to ensure all the weirdness with crosscompile
52inherit toolchain-funcs versionator
53
54EXPORT_FUNCTIONS pkg_setup
11 55
12# Overwritable environment Var's 56# Overwritable environment Var's
13# --------------------------------------- 57# ---------------------------------------
14KERNEL_DIR="${KERNEL_DIR:-/usr/src/linux}" 58KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
15 59
16 60
61# Bug fixes
62# fix to bug #75034
63case ${ARCH} in
64 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
65 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
66esac
67
68# These are legacy wrappers for toolchain-funcs.
69# I dont like them here, but oh well.
70set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; }
71set_arch_to_portage() { export ARCH="$(tc-arch)"; }
72
73# qeinfo "Message"
74# -------------------
75# qeinfo is a quiet einfo call when EBUILD_PHASE
76# should not have visible output.
77qout() {
78 local outputmsg type
79 type=${1}
80 shift
81 outputmsg="${@}"
82 case "${EBUILD_PHASE}" in
83 depend) unset outputmsg;;
84 clean) unset outputmsg;;
85 preinst) unset outputmsg;;
86 esac
87 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
88}
89
90qeinfo() { qout einfo "${@}" ; }
91qeerror() { qout eerror "${@}" ; }
17 92
18# File Functions 93# File Functions
19# --------------------------------------- 94# ---------------------------------------
20 95
21# getfilevar accepts 2 vars as follows: 96# getfilevar accepts 2 vars as follows:
22# getfilevar <VARIABLE> <CONFIGFILE> 97# getfilevar <VARIABLE> <CONFIGFILE>
23 98
24getfilevar() { 99getfilevar() {
25local ERROR 100local ERROR workingdir basefname basedname myARCH="${ARCH}"
26 ERROR=0 101 ERROR=0
27 102
28 [ -z "${1}" ] && ERROR=1 103 [ -z "${1}" ] && ERROR=1
29 [ -z "${2}" ] && ERROR=1
30 [ ! -f "${2}" ] && ERROR=1 104 [ ! -f "${2}" ] && ERROR=1
31 105
32 if [ "${ERROR}" = 1 ] 106 if [ "${ERROR}" = 1 ]
33 then 107 then
108 echo -e "\n"
34 eerror "getfilevar requires 2 variables, with the second a valid file." 109 eerror "getfilevar requires 2 variables, with the second a valid file."
35 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 110 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
36 else 111 else
37 grep -e "^$1[= ]" $2 | sed 's: = :=:' | cut -d= -f2- 112 workingdir=${PWD}
38 fi 113 basefname=$(basename ${2})
39} 114 basedname=$(dirname ${2})
115 unset ARCH
40 116
41getfilevar_isset() { 117 cd ${basedname}
118 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \
119 make ${BUILD_FIXES} -s -f - e 2>/dev/null
120 cd ${workingdir}
121
122 ARCH=${myARCH}
123 fi
124}
125
126linux_chkconfig_present() {
42local RESULT 127local RESULT
43 RESULT="$(getfilevar ${1} ${2})" 128 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
44 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 129 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
45} 130}
46 131
47getfilevar_ismodule() { 132linux_chkconfig_module() {
48local RESULT 133local RESULT
49 RESULT="$(getfilevar ${1} ${2})" 134 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
50 [ "${RESULT}" = "m" ] && return 0 || return 1 135 [ "${RESULT}" = "m" ] && return 0 || return 1
51} 136}
52 137
53getfilevar_isbuiltin() { 138linux_chkconfig_builtin() {
54local RESULT 139local RESULT
55 RESULT="$(getfilevar ${1} ${2})" 140 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
56 [ "${RESULT}" = "y" ] && return 0 || return 1 141 [ "${RESULT}" = "y" ] && return 0 || return 1
142}
143
144linux_chkconfig_string() {
145 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config"
57} 146}
58 147
59# Versioning Functions 148# Versioning Functions
60# --------------------------------------- 149# ---------------------------------------
61 150
71# got the jist yet? 160# got the jist yet?
72 161
73kernel_is() { 162kernel_is() {
74 # if we haven't determined the version yet, we need too. 163 # if we haven't determined the version yet, we need too.
75 get_version; 164 get_version;
76 165 local operator test value x=0 y=0 z=0
77 local RESULT 166
78 RESULT=1 167 case ${1} in
79 168 lt) operator="-lt"; shift;;
80 if [ -n "${1}" ] 169 gt) operator="-gt"; shift;;
81 then 170 le) operator="-le"; shift;;
82 [ "${1}" = "${KV_MAJOR}" ] && RESULT=0 171 ge) operator="-ge"; shift;;
83 fi 172 eq) operator="-eq"; shift;;
84 173 *) operator="-eq";;
85 if [ -n "${2}" ] 174 esac
86 then 175
87 RESULT=1 176 for x in ${@}; do
88 [ "${2}" = "${KV_MINOR}" ] && RESULT=0 177 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
89 fi 178 value="${value}${x}"
90 179 z=$((${z} + 1))
91 if [ -n "${3}" ] 180
92 then 181 case ${z} in
93 RESULT=1 182 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
94 [ "${3}" = "${KV_PATCH}" ] && RESULT=0 183 test="${test}${KV_MAJOR}";;
95 fi 184 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
96 return ${RESULT} 185 test="${test}${KV_MINOR}";;
186 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
187 test="${test}${KV_PATCH}";;
188 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
189 esac
190 done
191
192 [ ${test} ${operator} ${value} ] && return 0 || return 1
193}
194
195get_localversion() {
196 local lv_list i x
197
198 # ignore files with ~ in it.
199 for i in $(ls ${1}/localversion* 2>/dev/null); do
200 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
201 done
202
203 for i in ${lv_list}; do
204 x="${x}$(<${i})"
205 done
206 x=${x/ /}
207 echo ${x}
97} 208}
98 209
99get_version() { 210get_version() {
211 local kbuild_output
212
100 # no need to execute this twice assuming KV_FULL is populated. 213 # no need to execute this twice assuming KV_FULL is populated.
101 # we can force by unsetting KV_FULL 214 # we can force by unsetting KV_FULL
102 if [ -n "${KV_FULL}" ] 215 [ -n "${KV_FULL}" ] && return 0
103 then
104 # Lets keep this quiet eh?
105 # einfo "\${KV_FULL} is already set. Not running get_version again"
106 return
107 fi
108 216
109 # if we dont know KV_FULL, then we need too. 217 # if we dont know KV_FULL, then we need too.
110 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 218 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
111 unset KV_DIR 219 unset KV_DIR
112 220
113 # KV_DIR will contain the full path to the sources directory we should use 221 # KV_DIR will contain the full path to the sources directory we should use
114 einfo "Determining the location of the kernel source code" 222 qeinfo "Determining the location of the kernel source code"
115 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 223 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
116 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 224 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
117 225
118 if [ -z "${KV_DIR}" ] 226 if [ -z "${KV_DIR}" ]
119 then 227 then
120 eerror "Unable to find kernel sources at ${KERNEL_DIR}" 228 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
121 die 229 qeinfo "This package requires Linux sources."
230 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
231 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
232 qeinfo "(or the kernel you wish to build against)."
233 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
234 else
235 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
122 fi 236 fi
123 237 return 1
238 fi
239
240 qeinfo "Found kernel source directory:"
241 qeinfo " ${KV_DIR}"
242
243 if [ ! -s "${KV_DIR}/Makefile" ]
244 then
245 qeerror "Could not find a Makefile in the kernel source directory."
246 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
247 return 1
248 fi
249
250 # OK so now we know our sources directory, but they might be using
251 # KBUILD_OUTPUT, and we need this for .config and localversions-*
252 # so we better find it eh?
253 # do we pass KBUILD_OUTPUT on the CLI?
254 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
255
256 # And if we didn't pass it, we can take a nosey in the Makefile
257 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)"
258 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
259
124 # And contrary to existing functions I feel we shouldn't trust the 260 # And contrary to existing functions I feel we shouldn't trust the
125 # directory name to find version information as this seems insane. 261 # directory name to find version information as this seems insane.
126 # so we parse ${KV_DIR}/Makefile 262 # so we parse ${KV_DIR}/Makefile
127 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 263 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)"
128 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 264 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)"
129 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 265 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)"
130 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 266 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)"
267
268 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
269 then
270 qeerror "Could not detect kernel version."
271 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
272 return 1
273 fi
274
131 # and in newer versions we can also pull LOCALVERSION if it is set. 275 # and in newer versions we can also pull LOCALVERSION if it is set.
132 KV_LOCAL="$(cat ${KV_DIR}/localversion* 2>/dev/null)$(getfilevar CONFIG_LOCALVERSION ${KV_DIR}/.config | sed 's:"::g')" 276 # but before we do this, we need to find if we use a different object directory.
133 277 # This *WILL* break if the user is using localversions, but we assume it was
278 # caught before this if they are.
279 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
280 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}"
281
282 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
283 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
284 if [ -n "${KV_OUT_DIR}" ];
285 then
286 qeinfo "Found kernel object directory:"
287 qeinfo " ${KV_OUT_DIR}"
288
289 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
290 fi
291 # and if we STILL haven't got it, then we better just set it to KV_DIR
292 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
293
294 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_OUT_DIR})"
295 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
296 KV_LOCAL="${KV_LOCAL//\"/}"
297
134 # And we should set KV_FULL to the full expanded version 298 # And we should set KV_FULL to the full expanded version
135 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 299 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
136 300
137 if [ -z "${KV_FULL}" ] 301 qeinfo "Found sources for kernel version:"
302 qeinfo " ${KV_FULL}"
303
304 if [ ! -s "${KV_OUT_DIR}/.config" ]
138 then 305 then
139 eerror "We are unable to find a usable kernel source tree in ${KV_DIR}" 306 qeerror "Could not find a usable .config in the kernel source directory."
140 eerror "Please check a kernel source exists in this directory." 307 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
141 die 308 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
309 qeerror "it points to the necessary object directory so that it might find .config."
310 return 1
311 fi
312
313 return 0
314}
315
316get_running_version() {
317 KV_FULL=$(uname -r)
318
319 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
320 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
321 unset KV_FULL
322 get_version
323 return $?
324 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
325 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
326 unset KV_FULL
327 get_version
328 return $?
142 else 329 else
143 einfo "Found kernel source directory:" 330 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
144 einfo " ${KV_DIR}" 331 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
145 einfo "with sources for kernel version:" 332 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
146 einfo " ${KV_FULL}" 333 KV_PATCH=${KV_PATCH//-*}
334 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
335 && KV_EXTRA="-${KV_FULL#*-}"
147 fi 336 fi
337 return 0
148} 338}
149
150
151 339
152 340
153# ebuild check functions 341# ebuild check functions
154# --------------------------------------- 342# ---------------------------------------
155 343
156check_kernel_built() { 344check_kernel_built() {
157 # if we haven't determined the version yet, we need too. 345 # if we haven't determined the version yet, we need too.
158 get_version; 346 get_version;
159 347
160 if [ ! -f "${KV_DIR}/System.map" ] 348 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
161 then 349 then
162 eerror "These sources have not yet been compiled." 350 eerror "These sources have not yet been prepared."
163 eerror "We cannot build against an uncompiled tree." 351 eerror "We cannot build against an unprepared tree."
164 eerror "To resolve this, please type the following:" 352 eerror "To resolve this, please type the following:"
165 eerror 353 eerror
166 eerror "# cd ${KV_DIR}" 354 eerror "# cd ${KV_DIR}"
167 eerror "# make oldconfig" 355 eerror "# make oldconfig"
168 eerror "# make bzImage modules modules_install" 356 eerror "# make modules_prepare"
169 eerror 357 eerror
170 eerror "Then please try merging this module again." 358 eerror "Then please try merging this module again."
171 die "Kernel sources need compiling first" 359 die "Kernel sources need compiling first"
172 fi 360 fi
173} 361}
174 362
175check_modules_supported() { 363check_modules_supported() {
176 # if we haven't determined the version yet, we need too. 364 # if we haven't determined the version yet, we need too.
177 get_version; 365 get_version;
178 366
179 getfilevar_isset CONFIG_MODULES ${KV_DIR}/.config 367 if ! linux_chkconfig_builtin "MODULES"
180 if [ "$?" != 0 ]
181 then 368 then
182 eerror "These sources do not support loading external modules." 369 eerror "These sources do not support loading external modules."
183 eerror "to be able to use this module please enable \"Loadable modules support\"" 370 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." 371 eerror "in your kernel, recompile and then try merging this module again."
185 die No support for external modules in ${KV_FUll} config 372 die "No support for external modules in ${KV_FULL} config"
186 fi 373 fi
187} 374}
188 375
189check_extra_config() { 376check_extra_config() {
190local config negate error 377 local config negate error local_error i n temp_config
191 378
192 # if we haven't determined the version yet, we need too. 379 # if we haven't determined the version yet, we need too.
193 get_version; 380 get_version;
194 381
195 einfo "Checking for suitable kernel configuration options" 382 einfo "Checking for suitable kernel configuration options"
197 do 384 do
198 negate="${config:0:1}" 385 negate="${config:0:1}"
199 if [ "${negate}" == "!" ]; 386 if [ "${negate}" == "!" ];
200 then 387 then
201 config="${config:1}" 388 config="${config:1}"
202 if getfilevar_isset ${config} ${KV_DIR}/.config ; 389 if linux_chkconfig_present ${config}
203 then 390 then
391 local_error="${config}_ERROR"
392 local_error="${!local_error}"
393 [ -n "${local_error}" ] && eerror " ${local_error}" || \
204 eerror " ${config}:\tshould not be set in the kernel configuration, but it is." 394 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
205 error=1 395 error=1
206 fi 396 fi
397 elif [ "${negate}" == "@" ];
398 then
399 # we never call this unless we are using MODULE_NAMES
400
401 config="${config:1}"
402 temp_config="${config//*:}"
403 config="${config//:*}"
404 if linux_chkconfig_present ${config}
405 then
406 local_error="${config}_ERROR"
407 local_error="${!local_error}"
408 [ -n "${local_error}" ] && eerror " ${local_error}" || \
409 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
410
411 for i in ${MODULE_NAMES}
412 do
413 n="${i//${temp_config}}"
414 [ -z "${n//(*}" ] && MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
415 done
416 error=0
417 fi
207 else 418 else
208 if ! getfilevar_isset ${config} ${KV_DIR}/.config ; 419 if ! linux_chkconfig_present ${config}
209 then 420 then
421 # Support the new syntax first.
422 local_error="ERROR_${config}"
423 local_error="${!local_error}"
424
425 # then fall back on the older syntax.
426 if [[ -z ${local_error} ]] ; then
427 local_error="${config}_ERROR"
428 local_error="${!local_error}"
429 fi
430
431 [[ -n ${local_error} ]] && eerror " ${local_error}" || \
210 eerror " ${config}:\tshould be set in the kernel configuration, but isn't" 432 eerror " CONFIG_${config}:\tshould be set in the kernel configuration, but isn't"
211 error=1 433 error=1
212 fi 434 fi
213 fi 435 fi
214 done 436 done
215 437
216 if [ -n "${error}" ] ; 438 if [ "${error}" == 1 ] ;
217 then 439 then
218 eerror "Please check to make sure these options are set correctly." 440 eerror "Please check to make sure these options are set correctly."
219 eerror "Once you have satisfied these options, please try merging" 441 eerror "Once you have satisfied these options, please try merging"
220 eerror "this package again." 442 eerror "this package again."
221 die Incorrect kernel configuration options 443 die "Incorrect kernel configuration options"
222 fi 444 fi
223} 445}
224 446
225check_zlibinflate() { 447check_zlibinflate() {
226 # if we haven't determined the version yet, we need too. 448 # if we haven't determined the version yet, we need too.
227 get_version; 449 get_version;
228 450
229 # although I restructured this code - I really really really dont support it! 451 # although I restructured this code - I really really really dont support it!
230 452
231 # bug #27882 - zlib routines are only linked into the kernel 453 # bug #27882 - zlib routines are only linked into the kernel
232 # if something compiled into the kernel calls them 454 # if something compiled into the kernel calls them
233 # 455 #
234 # plus, for the cloop module, it appears that there's no way 456 # 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 457 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
236 # is on 458 # is on
237 459
238local INFLATE 460 local INFLATE
239local DEFLATE 461 local DEFLATE
240 462
241 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 463 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
242 464
243 ebegin "checking ZLIB_INFLATE" 465 ebegin "checking ZLIB_INFLATE"
244 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 466 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config
245 eend $? 467 eend $?
246 [ "$?" != 0 ] && die 468 [ "$?" != 0 ] && die
247 469
248 ebegin "checking ZLIB_DEFLATE" 470 ebegin "checking ZLIB_DEFLATE"
249 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 471 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config
250 eend $? 472 eend $?
251 [ "$?" != 0 ] && die 473 [ "$?" != 0 ] && die
252 474
253
254 local LINENO_START 475 local LINENO_START
255 local LINENO_END 476 local LINENO_END
256 local SYMBOLS 477 local SYMBOLS
257 local x 478 local x
258 479
259 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 480 LINENO_END="$(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)" 481 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 )) 482 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
262 (( LINENO_END = $LINENO_END - 1 )) 483 (( 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;')" 484 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
264 485
265 # okay, now we have a list of symbols 486 # 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 487 # we need to check each one in turn, to see whether it is set or not
267 for x in $SYMBOLS ; do 488 for x in $SYMBOLS ; do
268 if [ "${!x}" = "y" ]; then 489 if [ "${!x}" = "y" ]; then
269 # we have a winner! 490 # we have a winner!
270 einfo "${x} ensures zlib is linked into your kernel - excellent" 491 einfo "${x} ensures zlib is linked into your kernel - excellent"
271 return 0 492 return 0
272 fi 493 fi
273 done 494 done
274 495
275 eerror 496 eerror
276 eerror "This kernel module requires ZLIB library support." 497 eerror "This kernel module requires ZLIB library support."
277 eerror "You have enabled zlib support in your kernel, but haven't enabled" 498 eerror "You have enabled zlib support in your kernel, but haven't enabled"
278 eerror "enabled any option that will ensure that zlib is linked into your" 499 eerror "enabled any option that will ensure that zlib is linked into your"
279 eerror "kernel." 500 eerror "kernel."
289 eerror "Please remember to recompile and install your kernel, and reboot" 510 eerror "Please remember to recompile and install your kernel, and reboot"
290 eerror "into your new kernel before attempting to load this kernel module." 511 eerror "into your new kernel before attempting to load this kernel module."
291 512
292 die "Kernel doesn't include zlib support" 513 die "Kernel doesn't include zlib support"
293} 514}
515
516################################
517# Default pkg_setup
518# Also used when inheriting linux-mod to force a get_version call
519
520linux-info_pkg_setup() {
521 get_version || die "Unable to calculate Linux Kernel version"
522 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
523}

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