/[gentoo-x86]/eclass/linux-info.eclass
Gentoo

Contents of /eclass/linux-info.eclass

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.59 - (show annotations) (download)
Fri Mar 27 20:13:04 2009 UTC (5 years, 8 months ago) by loki_val
Branch: MAIN
Changes since 1.58: +2 -2 lines
Fix obvious typo in comments. Thanks to zlin for noticing.

1 # Copyright 1999-2006 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.58 2009/01/12 23:04:54 maekke Exp $
4 #
5 # Original author: John Mylchreest <johnm@gentoo.org>
6 # Maintainer: kernel-misc@gentoo.org
7 #
8 # Please direct your bugs to the current eclass maintainer :)
9
10 # @ECLASS: linux-info.eclass
11 # @MAINTAINER:
12 # kernel-misc@gentoo.org
13 # @BLURB: eclass used for accessing kernel related information
14 # @DESCRIPTION:
15 # This eclass is used as a central eclass for accessing kernel
16 # related information for sources already installed.
17 # It is vital for linux-mod.eclass to function correctly, and is split
18 # out so that any ebuild behaviour "templates" are abstracted out
19 # using additional eclasses.
20
21 # A Couple of env vars are available to effect usage of this eclass
22 # These are as follows:
23
24 # @ECLASS-VARIABLE: KERNEL_DIR
25 # @DESCRIPTION:
26 # A string containing the directory of the target kernel sources. The default value is
27 # "/usr/src/linux"
28
29 # @ECLASS-VARIABLE: CONFIG_CHECK
30 # @DESCRIPTION:
31 # A string containing a list of .config options to check for before
32 # proceeding with the install.
33 #
34 # e.g.: CONFIG_CHECK="MTRR"
35 #
36 # You can also check that an option doesn't exist by
37 # prepending it with an exclamation mark (!).
38 #
39 # e.g.: CONFIG_CHECK="!MTRR"
40 #
41 # To simply warn about a missing option, prepend a '~'.
42
43 # @ECLASS-VARIABLE: ERROR_<CFG>
44 # @DESCRIPTION:
45 # A string containing the error message to display when the check against CONFIG_CHECK
46 # fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
47 #
48 # e.g.: ERROR_MTRR="MTRR exists in the .config but shouldn't!!"
49
50 # @ECLASS-VARIABLE: KBUILD_OUTPUT
51 # @DESCRIPTION:
52 # A string passed on commandline, or set from the kernel makefile. It contains the directory
53 # which is to be used as the kernel object directory.
54
55 # There are also a couple of variables which are set by this, and shouldn't be
56 # set by hand. These are as follows:
57
58 # @ECLASS-VARIABLE: KV_FULL
59 # @DESCRIPTION:
60 # A read-only variable. It's a string containing the full kernel version. ie: 2.6.9-gentoo-johnm-r1
61
62 # @ECLASS-VARIABLE: KV_MAJOR
63 # @DESCRIPTION:
64 # A read-only variable. It's an integer containing the kernel major version. ie: 2
65
66 # @ECLASS-VARIABLE: KV_MINOR
67 # @DESCRIPTION:
68 # A read-only variable. It's an integer containing the kernel minor version. ie: 6
69
70 # @ECLASS-VARIABLE: KV_PATCH
71 # @DESCRIPTION:
72 # A read-only variable. It's an integer containing the kernel patch version. ie: 9
73
74 # @ECLASS-VARIABLE: KV_EXTRA
75 # @DESCRIPTION:
76 # A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
77
78 # @ECLASS-VARIABLE: KV_LOCAL
79 # @DESCRIPTION:
80 # A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
81
82 # @ECLASS-VARIABLE: KV_DIR
83 # @DESCRIPTION:
84 # A read-only variable. It's a string containing the kernel source directory, will be null if
85 # KERNEL_DIR is invalid.
86
87 # @ECLASS-VARIABLE: KV_OUT_DIR
88 # @DESCRIPTION:
89 # A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
90 # KBUILD_OUTPUT is used. This should be used for referencing .config.
91
92 # And to ensure all the weirdness with crosscompile
93 inherit toolchain-funcs versionator
94
95 EXPORT_FUNCTIONS pkg_setup
96
97 DEPEND="kernel_linux? ( virtual/linux-sources )"
98 RDEPEND=""
99
100 # Overwritable environment Var's
101 # ---------------------------------------
102 KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
103
104
105 # Bug fixes
106 # fix to bug #75034
107 case ${ARCH} in
108 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
109 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
110 esac
111
112 # @FUNCTION: set_arch_to_kernel
113 # @DESCRIPTION:
114 # Set the env ARCH to match what the kernel expects.
115 set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
116 # @FUNCTION: set_arch_to_portage
117 # @DESCRIPTION:
118 # Set the env ARCH to match what portage expects.
119 set_arch_to_portage() { export ARCH=$(tc-arch); }
120
121 # qeinfo "Message"
122 # -------------------
123 # qeinfo is a quiet einfo call when EBUILD_PHASE
124 # should not have visible output.
125 qout() {
126 local outputmsg type
127 type=${1}
128 shift
129 outputmsg="${@}"
130 case "${EBUILD_PHASE}" in
131 depend) unset outputmsg;;
132 clean) unset outputmsg;;
133 preinst) unset outputmsg;;
134 esac
135 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
136 }
137
138 qeinfo() { qout einfo "${@}" ; }
139 qeerror() { qout eerror "${@}" ; }
140
141 # File Functions
142 # ---------------------------------------
143
144 # @FUNCTION: getfilevar
145 # @USAGE: variable configfile
146 # @RETURN: the value of the variable
147 # @DESCRIPTION:
148 # It detects the value of the variable defined in the file configfile
149 getfilevar() {
150 local ERROR basefname basedname myARCH="${ARCH}"
151 ERROR=0
152
153 [ -z "${1}" ] && ERROR=1
154 [ ! -f "${2}" ] && ERROR=1
155
156 if [ "${ERROR}" = 1 ]
157 then
158 echo -e "\n"
159 eerror "getfilevar requires 2 variables, with the second a valid file."
160 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
161 else
162 basefname="$(basename ${2})"
163 basedname="$(dirname ${2})"
164 unset ARCH
165
166 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
167 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
168
169 ARCH=${myARCH}
170 fi
171 }
172
173
174 # @FUNCTION: linux_config_exists
175 # @RETURN: true or false
176 # @DESCRIPTION:
177 # It returns true if .config exists otherwise false
178 linux_config_exists() {
179 [ -s "${KV_OUT_DIR}/.config" ]
180 }
181
182 # @FUNCTION: require_configured_kernel
183 # @DESCRIPTION:
184 # This function verifies that the current kernel is configured (it checks against the existence of .config)
185 # otherwise it dies.
186 require_configured_kernel() {
187 if ! linux_config_exists; then
188 qeerror "Could not find a usable .config in the kernel source directory."
189 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
190 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
191 qeerror "it points to the necessary object directory so that it might find .config."
192 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
193 fi
194 }
195
196 # @FUNCTION: linux_chkconfig_present
197 # @USAGE: option
198 # @RETURN: true or false
199 # @DESCRIPTION:
200 # It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
201 linux_chkconfig_present() {
202 local RESULT
203 require_configured_kernel
204 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
205 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
206 }
207
208 # @FUNCTION: linux_chkconfig_module
209 # @USAGE: option
210 # @RETURN: true or false
211 # @DESCRIPTION:
212 # It checks that CONFIG_<option>=m is present in the current kernel .config
213 linux_chkconfig_module() {
214 local RESULT
215 require_configured_kernel
216 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
217 [ "${RESULT}" = "m" ] && return 0 || return 1
218 }
219
220 # @FUNCTION: linux_chkconfig_builtin
221 # @USAGE: option
222 # @RETURN: true or false
223 # @DESCRIPTION:
224 # It checks that CONFIG_<option>=y is present in the current kernel .config
225 linux_chkconfig_builtin() {
226 local RESULT
227 require_configured_kernel
228 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
229 [ "${RESULT}" = "y" ] && return 0 || return 1
230 }
231
232 # @FUNCTION: linux_chkconfig_string
233 # @USAGE: option
234 # @RETURN: CONFIG_<option>
235 # @DESCRIPTION:
236 # It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
237 linux_chkconfig_string() {
238 require_configured_kernel
239 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config"
240 }
241
242 # Versioning Functions
243 # ---------------------------------------
244
245 # @FUNCTION: kernel_is
246 # @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
247 # @RETURN: true or false
248 # @DESCRIPTION:
249 # It returns true when the current kernel version satisfies the comparison against the passed version.
250 # -eq is the default comparison.
251 #
252 # @CODE
253 # For Example where KV = 2.6.9
254 # kernel_is 2 4 returns false
255 # kernel_is 2 returns true
256 # kernel_is 2 6 returns true
257 # kernel_is 2 6 8 returns false
258 # kernel_is 2 6 9 returns true
259 # @CODE
260
261 # got the jist yet?
262
263 kernel_is() {
264 # if we haven't determined the version yet, we need to.
265 get_version
266 local operator test value x=0 y=0 z=0
267
268 case ${1} in
269 lt) operator="-lt"; shift;;
270 gt) operator="-gt"; shift;;
271 le) operator="-le"; shift;;
272 ge) operator="-ge"; shift;;
273 eq) operator="-eq"; shift;;
274 *) operator="-eq";;
275 esac
276
277 for x in ${@}; do
278 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
279 value="${value}${x}"
280 z=$((${z} + 1))
281
282 case ${z} in
283 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
284 test="${test}${KV_MAJOR}";;
285 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
286 test="${test}${KV_MINOR}";;
287 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
288 test="${test}${KV_PATCH}";;
289 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
290 esac
291 done
292
293 [ ${test} ${operator} ${value} ] && return 0 || return 1
294 }
295
296 get_localversion() {
297 local lv_list i x
298
299 # ignore files with ~ in it.
300 for i in $(ls ${1}/localversion* 2>/dev/null); do
301 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
302 done
303
304 for i in ${lv_list}; do
305 x="${x}$(<${i})"
306 done
307 x=${x/ /}
308 echo ${x}
309 }
310
311 # @FUNCTION: get_version
312 # @DESCRIPTION:
313 # It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
314 # (if KV_FULL is already set it does nothing).
315 #
316 # The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
317 #
318 # The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
319 # KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
320 # symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
321 get_version() {
322 local kbuild_output
323
324 # no need to execute this twice assuming KV_FULL is populated.
325 # we can force by unsetting KV_FULL
326 [ -n "${KV_FULL}" ] && return 0
327
328 # if we dont know KV_FULL, then we need too.
329 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
330 unset KV_DIR
331
332 # KV_DIR will contain the full path to the sources directory we should use
333 qeinfo "Determining the location of the kernel source code"
334 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
335 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
336
337 if [ -z "${KV_DIR}" ]
338 then
339 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
340 qeinfo "This package requires Linux sources."
341 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
342 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
343 qeinfo "(or the kernel you wish to build against)."
344 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
345 else
346 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
347 fi
348 return 1
349 fi
350
351 qeinfo "Found kernel source directory:"
352 qeinfo " ${KV_DIR}"
353
354 if [ ! -s "${KV_DIR}/Makefile" ]
355 then
356 qeerror "Could not find a Makefile in the kernel source directory."
357 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
358 return 1
359 fi
360
361 # OK so now we know our sources directory, but they might be using
362 # KBUILD_OUTPUT, and we need this for .config and localversions-*
363 # so we better find it eh?
364 # do we pass KBUILD_OUTPUT on the CLI?
365 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
366
367 # And if we didn't pass it, we can take a nosey in the Makefile
368 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)"
369 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
370
371 # And contrary to existing functions I feel we shouldn't trust the
372 # directory name to find version information as this seems insane.
373 # so we parse ${KV_DIR}/Makefile
374 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)"
375 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)"
376 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)"
377 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)"
378
379 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
380 then
381 qeerror "Could not detect kernel version."
382 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
383 return 1
384 fi
385
386 # and in newer versions we can also pull LOCALVERSION if it is set.
387 # but before we do this, we need to find if we use a different object directory.
388 # This *WILL* break if the user is using localversions, but we assume it was
389 # caught before this if they are.
390 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
391 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
392
393 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
394 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
395 if [ -n "${KV_OUT_DIR}" ];
396 then
397 qeinfo "Found kernel object directory:"
398 qeinfo " ${KV_OUT_DIR}"
399
400 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
401 fi
402 # and if we STILL have not got it, then we better just set it to KV_DIR
403 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
404
405 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
406 if linux_config_exists; then
407 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
408 KV_LOCAL="${KV_LOCAL//\"/}"
409
410 # For things like git that can append extra stuff:
411 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
412 linux_chkconfig_builtin LOCALVERSION_AUTO &&
413 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})"
414 fi
415
416 # And we should set KV_FULL to the full expanded version
417 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
418
419 qeinfo "Found sources for kernel version:"
420 qeinfo " ${KV_FULL}"
421
422 return 0
423 }
424
425 # @FUNCTION: get_running_version
426 # @DESCRIPTION:
427 # It gets the version of the current running kernel and the result is the same as get_version() if the
428 # function can find the sources.
429 get_running_version() {
430 KV_FULL=$(uname -r)
431
432 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
433 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
434 unset KV_FULL
435 get_version
436 return $?
437 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
438 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
439 unset KV_FULL
440 get_version
441 return $?
442 else
443 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
444 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
445 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
446 KV_PATCH=${KV_PATCH//-*}
447 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
448 && KV_EXTRA="-${KV_FULL#*-}"
449 fi
450 return 0
451 }
452
453
454 # ebuild check functions
455 # ---------------------------------------
456
457 # @FUNCTION: check_kernel_built
458 # @DESCRIPTION:
459 # This function verifies that the current kernel sources have been already prepared otherwise it dies.
460 check_kernel_built() {
461 # if we haven't determined the version yet, we need to
462 require_configured_kernel
463 get_version
464
465 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
466 then
467 eerror "These sources have not yet been prepared."
468 eerror "We cannot build against an unprepared tree."
469 eerror "To resolve this, please type the following:"
470 eerror
471 eerror "# cd ${KV_DIR}"
472 eerror "# make oldconfig"
473 eerror "# make modules_prepare"
474 eerror
475 eerror "Then please try merging this module again."
476 die "Kernel sources need compiling first"
477 fi
478 }
479
480 # @FUNCTION: check_modules_supported
481 # @DESCRIPTION:
482 # This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
483 check_modules_supported() {
484 # if we haven't determined the version yet, we need too.
485 require_configured_kernel
486 get_version
487
488 if ! linux_chkconfig_builtin "MODULES"
489 then
490 eerror "These sources do not support loading external modules."
491 eerror "to be able to use this module please enable \"Loadable modules support\""
492 eerror "in your kernel, recompile and then try merging this module again."
493 die "No support for external modules in ${KV_FULL} config"
494 fi
495 }
496
497 # @FUNCTION: check_extra_config
498 # @DESCRIPTION:
499 # It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
500 # the prefix ~ is not used) doesn't satisfy the directive.
501 check_extra_config() {
502 local config negate die error reworkmodulenames
503 local soft_errors_count=0 hard_errors_count=0 config_required=0
504
505 # if we haven't determined the version yet, we need to
506 get_version
507
508 # Determine if we really need a .config. The only time when we don't need
509 # one is when all of the CONFIG_CHECK options are prefixed with "~".
510 for config in ${CONFIG_CHECK}
511 do
512 if [[ "${config:0:1}" != "~" ]]; then
513 config_required=1
514 break
515 fi
516 done
517
518 if [[ ${config_required} == 0 ]]; then
519 # In the case where we don't require a .config, we can now bail out
520 # if the user has no .config as there is nothing to do. Otherwise
521 # code later will cause a failure due to missing .config.
522 if ! linux_config_exists; then
523 return 0
524 fi
525 else
526 require_configured_kernel
527 fi
528
529 einfo "Checking for suitable kernel configuration options..."
530
531 for config in ${CONFIG_CHECK}
532 do
533 # if we specify any fatal, ensure we honor them
534 die=1
535 error=0
536 negate=0
537 reworkmodulenames=0
538
539 if [[ ${config:0:1} == "~" ]]; then
540 die=0
541 config=${config:1}
542 elif [[ ${config:0:1} == "@" ]]; then
543 die=0
544 reworkmodulenames=1
545 config=${config:1}
546 fi
547 if [[ ${config:0:1} == "!" ]]; then
548 negate=1
549 config=${config:1}
550 fi
551
552 if [[ ${negate} == 1 ]]; then
553 linux_chkconfig_present ${config} && error=2
554 elif [[ ${reworkmodulenames} == 1 ]]; then
555 local temp_config="${config//*:}" i n
556 config="${config//:*}"
557 if linux_chkconfig_present ${config}; then
558 for i in ${MODULE_NAMES}; do
559 n="${i//${temp_config}}"
560 [[ -z ${n//\(*} ]] && \
561 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
562 done
563 error=2
564 fi
565 else
566 linux_chkconfig_present ${config} || error=1
567 fi
568
569 if [[ ${error} > 0 ]]; then
570 local report_func="eerror" local_error
571 local_error="ERROR_${config}"
572 local_error="${!local_error}"
573
574 if [[ -z "${local_error}" ]]; then
575 # using old, deprecated format.
576 local_error="${config}_ERROR"
577 local_error="${!local_error}"
578 fi
579 if [[ ${die} == 0 && -z "${local_error}" ]]; then
580 #soft errors can be warnings
581 local_error="WARNING_${config}"
582 local_error="${!local_error}"
583 if [[ -n "${local_error}" ]] ; then
584 report_func="ewarn"
585 fi
586 fi
587
588 if [[ -z "${local_error}" ]]; then
589 [[ ${error} == 1 ]] \
590 && local_error="is not set when it should be." \
591 || local_error="should not be set. But it is."
592 local_error="CONFIG_${config}:\t ${local_error}"
593 fi
594 if [[ ${die} == 0 ]]; then
595 ${report_func} " ${local_error}"
596 soft_errors_count=$[soft_errors_count + 1]
597 else
598 ${report_func} " ${local_error}"
599 hard_errors_count=$[hard_errors_count + 1]
600 fi
601 fi
602 done
603
604 if [[ ${hard_errors_count} > 0 ]]; then
605 eerror "Please check to make sure these options are set correctly."
606 eerror "Failure to do so may cause unexpected problems."
607 eerror "Once you have satisfied these options, please try merging"
608 eerror "this package again."
609 die "Incorrect kernel configuration options"
610 elif [[ ${soft_errors_count} > 0 ]]; then
611 ewarn "Please check to make sure these options are set correctly."
612 ewarn "Failure to do so may cause unexpected problems."
613 else
614 eend 0
615 fi
616 }
617
618 check_zlibinflate() {
619 # if we haven't determined the version yet, we need to
620 require_configured_kernel
621 get_version
622
623 # although I restructured this code - I really really really dont support it!
624
625 # bug #27882 - zlib routines are only linked into the kernel
626 # if something compiled into the kernel calls them
627 #
628 # plus, for the cloop module, it appears that there's no way
629 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
630 # is on
631
632 local INFLATE
633 local DEFLATE
634
635 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
636
637 ebegin "checking ZLIB_INFLATE"
638 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config
639 eend $?
640 [ "$?" != 0 ] && die
641
642 ebegin "checking ZLIB_DEFLATE"
643 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config
644 eend $?
645 [ "$?" != 0 ] && die
646
647 local LINENO_START
648 local LINENO_END
649 local SYMBOLS
650 local x
651
652 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
653 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)"
654 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
655 (( LINENO_END = $LINENO_END - 1 ))
656 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
657
658 # okay, now we have a list of symbols
659 # we need to check each one in turn, to see whether it is set or not
660 for x in $SYMBOLS ; do
661 if [ "${!x}" = "y" ]; then
662 # we have a winner!
663 einfo "${x} ensures zlib is linked into your kernel - excellent"
664 return 0
665 fi
666 done
667
668 eerror
669 eerror "This kernel module requires ZLIB library support."
670 eerror "You have enabled zlib support in your kernel, but haven't enabled"
671 eerror "enabled any option that will ensure that zlib is linked into your"
672 eerror "kernel."
673 eerror
674 eerror "Please ensure that you enable at least one of these options:"
675 eerror
676
677 for x in $SYMBOLS ; do
678 eerror " * $x"
679 done
680
681 eerror
682 eerror "Please remember to recompile and install your kernel, and reboot"
683 eerror "into your new kernel before attempting to load this kernel module."
684
685 die "Kernel doesn't include zlib support"
686 }
687
688 ################################
689 # Default pkg_setup
690 # Also used when inheriting linux-mod to force a get_version call
691 # @FUNCTION: linux-info_pkg_setup
692 # @DESCRIPTION:
693 # Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
694 # to support the options specified in CONFIG_CHECK (if not null)
695 linux-info_pkg_setup() {
696 get_version || die "Unable to calculate Linux Kernel version"
697
698 if kernel_is 2 4; then
699 if [ "$( gcc-major-version )" -eq "4" ] ; then
700 echo
701 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
702 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
703 echo
704 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
705 ewarn "newer kernel that supports gcc-4."
706 echo
707 ewarn "Also be aware that bugreports about gcc-4 not working"
708 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
709 echo
710 epause 10
711 fi
712 fi
713
714 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
715 }

  ViewVC Help
Powered by ViewVC 1.1.20