/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.1 Revision 1.43
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 1.43 2006/05/07 22:14:25 mrness 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 "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
123 make ${BUILD_FIXES} -s -f - 2>/dev/null
124 cd "${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."
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 local soft_errors_count=0 hard_errors_count=0
384
385 # if we haven't determined the version yet, we need too.
386 get_version;
387
388 einfo "Checking for suitable kernel configuration options..."
389 for config in ${CONFIG_CHECK}
390 do
391 # if we specify any fatal, ensure we honor them
392 die=1
393 error=0
394 negate=0
395 reworkmodulenames=0
396
397 if [[ -z ${config/\~*} ]]; then
398 die=0
399 config=${config:1}
400 fi
401 if [[ -z ${config//\!*} ]]; then
402 negate=1
403 config=${config:1}
404 fi
405 if [[ -z ${config/\@*} ]]; then
406 die=2
407 reworkmodulenames=1
408 config=${config:1}
409 fi
410
411 if [[ ${negate} == 1 ]]; then
412 linux_chkconfig_present ${config} && error=2
413 elif [[ ${reworkmodulenames} == 1 ]]; then
414 temp_config="${config//*:}"
415 config="${config//:*}"
416 if linux_chkconfig_present ${config}; then
417 for i in ${MODULE_NAMES}; do
418 n="${i//${temp_config}}"
419 [[ -z ${n//\(*} ]] && \
420 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
421 done
422 error=2
423 fi
424 else
425 linux_chkconfig_present ${config} || error=1
426 fi
427
428 if [[ ${error} > 0 ]]; then
429 if [[ ${die} == 0 ]]; then
430 soft_errors_count=$[soft_errors_count + 1]
431 else
432 hard_errors_count=$[hard_errors_count + 1]
433 fi
434 local_error="ERROR_${config}"
435 local_error="${!local_error}"
436
437 if [[ -z "${local_error}" ]]; then
438 # using old, deprecated format.
439 local_error="${config}_ERROR"
440 local_error="${!local_error}"
441 fi
442
443 if [[ -z "${local_error}" ]]; then
444 [[ ${error} == 1 ]] \
445 && local_error="is not set when it should be." \
446 || local_error="should not be set. But it is."
447 local_error="CONFIG_${config}:\t ${local_error}"
448 fi
449 eerror " ${local_error}"
450 fi
451 done
452
453 if [[ $[soft_errors_count + hard_errors_count] > 0 ]]; then
454 eerror "Please check to make sure these options are set correctly."
455 eerror "Failure to do so may cause unexpected problems."
456 if [[ ${hard_errors_count} > 0 ]]; then
457 eerror "Once you have satisfied these options, please try merging"
458 eerror "this package again."
459 die "Incorrect kernel configuration options"
460 fi
461 else
462 eend 0
185 fi 463 fi
186} 464}
187 465
188check_zlibinflate() { 466check_zlibinflate() {
189 # if we haven't determined the version yet, we need too. 467 # if we haven't determined the version yet, we need too.
190 get_version; 468 get_version;
191 469
192 # although I restructured this code - I really really really dont support it! 470 # although I restructured this code - I really really really dont support it!
193 471
194 # bug #27882 - zlib routines are only linked into the kernel 472 # bug #27882 - zlib routines are only linked into the kernel
195 # if something compiled into the kernel calls them 473 # if something compiled into the kernel calls them
196 # 474 #
197 # plus, for the cloop module, it appears that there's no way 475 # 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 476 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
199 # is on 477 # is on
200 478
201local INFLATE 479 local INFLATE
202local DEFLATE 480 local DEFLATE
203 481
204 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 482 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
205 483
206 ebegin "checking ZLIB_INFLATE" 484 ebegin "checking ZLIB_INFLATE"
207 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 485 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config
208 eend $? 486 eend $?
209 [ "$?" != 0 ] && die 487 [ "$?" != 0 ] && die
210 488
211 ebegin "checking ZLIB_DEFLATE" 489 ebegin "checking ZLIB_DEFLATE"
212 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 490 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config
213 eend $? 491 eend $?
214 [ "$?" != 0 ] && die 492 [ "$?" != 0 ] && die
215 493
216
217 local LINENO_START 494 local LINENO_START
218 local LINENO_END 495 local LINENO_END
219 local SYMBOLS 496 local SYMBOLS
220 local x 497 local x
221 498
222 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 499 LINENO_END="$(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)" 500 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 )) 501 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
225 (( LINENO_END = $LINENO_END - 1 )) 502 (( 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;')" 503 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
227 504
228 # okay, now we have a list of symbols 505 # 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 506 # we need to check each one in turn, to see whether it is set or not
230 for x in $SYMBOLS ; do 507 for x in $SYMBOLS ; do
231 if [ "${!x}" = "y" ]; then 508 if [ "${!x}" = "y" ]; then
232 # we have a winner! 509 # we have a winner!
233 einfo "${x} ensures zlib is linked into your kernel - excellent" 510 einfo "${x} ensures zlib is linked into your kernel - excellent"
234 return 0 511 return 0
235 fi 512 fi
236 done 513 done
237 514
238 eerror 515 eerror
239 eerror "This kernel module requires ZLIB library support." 516 eerror "This kernel module requires ZLIB library support."
240 eerror "You have enabled zlib support in your kernel, but haven't enabled" 517 eerror "You have enabled zlib support in your kernel, but haven't enabled"
241 eerror "enabled any option that will ensure that zlib is linked into your" 518 eerror "enabled any option that will ensure that zlib is linked into your"
242 eerror "kernel." 519 eerror "kernel."
… …
252 eerror "Please remember to recompile and install your kernel, and reboot" 529 eerror "Please remember to recompile and install your kernel, and reboot"
253 eerror "into your new kernel before attempting to load this kernel module." 530 eerror "into your new kernel before attempting to load this kernel module."
254 531
255 die "Kernel doesn't include zlib support" 532 die "Kernel doesn't include zlib support"
256} 533}
534
535################################
536# Default pkg_setup
537# Also used when inheriting linux-mod to force a get_version call
538
539linux-info_pkg_setup() {
540 get_version || die "Unable to calculate Linux Kernel version"
541 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
542}
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