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Revision 1.63 Revision 1.90
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2011 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 1.63 2009/09/06 23:04:37 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.90 2011/08/22 04:46:32 vapier 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 4
10# @ECLASS: linux-info.eclass 5# @ECLASS: linux-info.eclass
11# @MAINTAINER: 6# @MAINTAINER:
12# kernel-misc@gentoo.org 7# kernel-misc@gentoo.org
8# @AUTHOR:
9# Original author: John Mylchreest <johnm@gentoo.org>
13# @BLURB: eclass used for accessing kernel related information 10# @BLURB: eclass used for accessing kernel related information
14# @DESCRIPTION: 11# @DESCRIPTION:
15# This eclass is used as a central eclass for accessing kernel 12# This eclass is used as a central eclass for accessing kernel
16# related information for source or binary already installed. 13# related information for source or binary already installed.
17# It is vital for linux-mod.eclass to function correctly, and is split 14# It is vital for linux-mod.eclass to function correctly, and is split
40# You can also check that an option doesn't exist by 37# You can also check that an option doesn't exist by
41# prepending it with an exclamation mark (!). 38# prepending it with an exclamation mark (!).
42# 39#
43# e.g.: CONFIG_CHECK="!MTRR" 40# e.g.: CONFIG_CHECK="!MTRR"
44# 41#
45# To simply warn about a missing option, prepend a '~'. 42# To simply warn about a missing option, prepend a '~'.
46# It may be combined with '!'. 43# It may be combined with '!'.
47# 44#
48# In general, most checks should be non-fatal. The only time fatal checks should 45# In general, most checks should be non-fatal. The only time fatal checks should
49# be used is for building kernel modules or cases that a compile will fail 46# be used is for building kernel modules or cases that a compile will fail
50# without the option. 47# without the option.
99# @ECLASS-VARIABLE: KV_OUT_DIR 96# @ECLASS-VARIABLE: KV_OUT_DIR
100# @DESCRIPTION: 97# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless 98# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
102# KBUILD_OUTPUT is used. This should be used for referencing .config. 99# KBUILD_OUTPUT is used. This should be used for referencing .config.
103 100
104# @ECLASS-VARIABLE: I_KNOW_WHAT_I_AM_DOING
105# @DESCRIPTION:
106# Temporary variable for the migration to making linux-info non-fatal.
107
108# And to ensure all the weirdness with crosscompile 101# And to ensure all the weirdness with crosscompile
109inherit toolchain-funcs versionator 102inherit toolchain-funcs versionator
110 103
111EXPORT_FUNCTIONS pkg_setup 104EXPORT_FUNCTIONS pkg_setup
112 105
113DEPEND="kernel_linux? ( virtual/linux-sources )" 106DEPEND=""
114RDEPEND="" 107RDEPEND=""
115 108
116# Overwritable environment Var's 109# Overwritable environment Var's
117# --------------------------------------- 110# ---------------------------------------
118KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 111KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
150 esac 143 esac
151 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 144 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
152} 145}
153 146
154qeinfo() { qout einfo "${@}" ; } 147qeinfo() { qout einfo "${@}" ; }
148qewarn() { qout ewarn "${@}" ; }
155qeerror() { qout eerror "${@}" ; } 149qeerror() { qout eerror "${@}" ; }
156 150
157# File Functions 151# File Functions
158# --------------------------------------- 152# ---------------------------------------
159 153
200 ERROR=0 194 ERROR=0
201 mycat='cat' 195 mycat='cat'
202 196
203 [ -z "${1}" ] && ERROR=1 197 [ -z "${1}" ] && ERROR=1
204 [ ! -f "${2}" ] && ERROR=1 198 [ ! -f "${2}" ] && ERROR=1
205 [ "${2#.gz}" != "${2}" ] && mycat='zcat' 199 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
206 200
207 if [ "${ERROR}" = 1 ] 201 if [ "${ERROR}" = 1 ]
208 then 202 then
209 echo -e "\n" 203 echo -e "\n"
210 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 204 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
211 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 205 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
212 else 206 else
213 ${mycat} "${2}" | \ 207 ${mycat} "${2}" | \
214 sed -n \ 208 sed -n \
215 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 209 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
216 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 210 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
217 s,[[:space:]]*\$,,g ; 211 s,[[:space:]]*\$,,g ;
218 p 212 p
219 }" 213 }"
220 fi 214 fi
221} 215}
222 216
217# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
218# @INTERNAL
219# @DESCRIPTION:
220# This is only set if one of the linux_config_*exists functions has been called.
221# We use it for a QA warning that the check for a config has not been performed,
222# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
223# config is available at all.
224_LINUX_CONFIG_EXISTS_DONE=
225
226linux_config_qa_check() {
227 local f="$1"
228 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
229 ewarn "QA: You called $f before any linux_config_exists!"
230 ewarn "QA: The return value of $f will NOT guaranteed later!"
231 fi
232}
223 233
224# @FUNCTION: linux_config_src_exists 234# @FUNCTION: linux_config_src_exists
225# @RETURN: true or false 235# @RETURN: true or false
226# @DESCRIPTION: 236# @DESCRIPTION:
227# It returns true if .config exists in a build directory otherwise false 237# It returns true if .config exists in a build directory otherwise false
228linux_config_src_exists() { 238linux_config_src_exists() {
239 export _LINUX_CONFIG_EXISTS_DONE=1
229 [ -s "${KV_OUT_DIR}/.config" ] 240 [ -s "${KV_OUT_DIR}/.config" ]
230} 241}
231 242
232# @FUNCTION: linux_config_bin_exists 243# @FUNCTION: linux_config_bin_exists
233# @RETURN: true or false 244# @RETURN: true or false
234# @DESCRIPTION: 245# @DESCRIPTION:
235# It returns true if .config exists in /proc, otherwise false 246# It returns true if .config exists in /proc, otherwise false
236linux_config_bin_exists() { 247linux_config_bin_exists() {
248 export _LINUX_CONFIG_EXISTS_DONE=1
237 [ -s "/proc/config.gz" ] 249 [ -s "/proc/config.gz" ]
238} 250}
239 251
240# @FUNCTION: linux_config_exists 252# @FUNCTION: linux_config_exists
241# @RETURN: true or false 253# @RETURN: true or false
268# @DESCRIPTION: 280# @DESCRIPTION:
269# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 281# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
270# If linux_config_exists returns false, the results of this are UNDEFINED. You 282# If linux_config_exists returns false, the results of this are UNDEFINED. You
271# MUST call linux_config_exists first. 283# MUST call linux_config_exists first.
272linux_chkconfig_present() { 284linux_chkconfig_present() {
285 linux_config_qa_check linux_chkconfig_present
273local RESULT 286 local RESULT
274 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
275 local config 287 local config
276 config="${KV_OUT_DIR}/.config" 288 config="${KV_OUT_DIR}/.config"
277 [ ! -f "${config}" ] && config="/proc/config.gz" 289 [ ! -f "${config}" ] && config="/proc/config.gz"
278 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 290 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
279 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 291 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
285# @DESCRIPTION: 297# @DESCRIPTION:
286# It checks that CONFIG_<option>=m is present in the current kernel .config 298# It checks that CONFIG_<option>=m is present in the current kernel .config
287# If linux_config_exists returns false, the results of this are UNDEFINED. You 299# If linux_config_exists returns false, the results of this are UNDEFINED. You
288# MUST call linux_config_exists first. 300# MUST call linux_config_exists first.
289linux_chkconfig_module() { 301linux_chkconfig_module() {
302 linux_config_qa_check linux_chkconfig_module
290local RESULT 303 local RESULT
291 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
292 local config 304 local config
293 config="${KV_OUT_DIR}/.config" 305 config="${KV_OUT_DIR}/.config"
294 [ ! -f "${config}" ] && config="/proc/config.gz" 306 [ ! -f "${config}" ] && config="/proc/config.gz"
295 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 307 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
296 [ "${RESULT}" = "m" ] && return 0 || return 1 308 [ "${RESULT}" = "m" ] && return 0 || return 1
302# @DESCRIPTION: 314# @DESCRIPTION:
303# It checks that CONFIG_<option>=y is present in the current kernel .config 315# It checks that CONFIG_<option>=y is present in the current kernel .config
304# If linux_config_exists returns false, the results of this are UNDEFINED. You 316# If linux_config_exists returns false, the results of this are UNDEFINED. You
305# MUST call linux_config_exists first. 317# MUST call linux_config_exists first.
306linux_chkconfig_builtin() { 318linux_chkconfig_builtin() {
319 linux_config_qa_check linux_chkconfig_builtin
307local RESULT 320 local RESULT
308 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
309 local config 321 local config
310 config="${KV_OUT_DIR}/.config" 322 config="${KV_OUT_DIR}/.config"
311 [ ! -f "${config}" ] && config="/proc/config.gz" 323 [ ! -f "${config}" ] && config="/proc/config.gz"
312 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 324 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
313 [ "${RESULT}" = "y" ] && return 0 || return 1 325 [ "${RESULT}" = "y" ] && return 0 || return 1
319# @DESCRIPTION: 331# @DESCRIPTION:
320# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 332# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
321# If linux_config_exists returns false, the results of this are UNDEFINED. You 333# If linux_config_exists returns false, the results of this are UNDEFINED. You
322# MUST call linux_config_exists first. 334# MUST call linux_config_exists first.
323linux_chkconfig_string() { 335linux_chkconfig_string() {
324 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 336 linux_config_qa_check linux_chkconfig_string
325 local config 337 local config
326 config="${KV_OUT_DIR}/.config" 338 config="${KV_OUT_DIR}/.config"
327 [ ! -f "${config}" ] && config="/proc/config.gz" 339 [ ! -f "${config}" ] && config="/proc/config.gz"
328 getfilevar_noexec "CONFIG_${1}" "${config}" 340 getfilevar_noexec "CONFIG_${1}" "${config}"
329} 341}
349 361
350# got the jist yet? 362# got the jist yet?
351 363
352kernel_is() { 364kernel_is() {
353 # if we haven't determined the version yet, we need to. 365 # if we haven't determined the version yet, we need to.
354 get_version 366 linux-info_get_any_version
367
355 local operator test value x=0 y=0 z=0 368 local operator testagainst value x=0 y=0 z=0
356 369
357 case ${1} in 370 case ${1} in
358 lt) operator="-lt"; shift;; 371 -lt|lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 372 -gt|gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 373 -le|le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 374 -ge|ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 375 -eq|eq) operator="-eq"; shift;;
363 *) operator="-eq";; 376 *) operator="-eq";;
364 esac 377 esac
365 378
366 for x in ${@}; do 379 for x in ${@}; do
367 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 380 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
368 value="${value}${x}" 381 value="${value}${x}"
369 z=$((${z} + 1)) 382 z=$((${z} + 1))
370 383
371 case ${z} in 384 case ${z} in
372 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 385 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
373 test="${test}${KV_MAJOR}";; 386 testagainst="${testagainst}${KV_MAJOR}";;
374 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done; 387 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do testagainst="${testagainst}0"; done;
375 test="${test}${KV_MINOR}";; 388 testagainst="${testagainst}${KV_MINOR}";;
376 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 389 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do testagainst="${testagainst}0"; done;
377 test="${test}${KV_PATCH}";; 390 testagainst="${testagainst}${KV_PATCH}";;
378 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 391 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
379 esac 392 esac
380 done 393 done
381 394
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 395 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
383} 396}
384 397
385get_localversion() { 398get_localversion() {
386 local lv_list i x 399 local lv_list i x
387 400
395 done 408 done
396 x=${x/ /} 409 x=${x/ /}
397 echo ${x} 410 echo ${x}
398} 411}
399 412
413# Check if the Makefile is valid for direct parsing.
414# Check status results:
415# - PASS, use 'getfilevar' to extract values
416# - FAIL, use 'getfilevar_noexec' to extract values
417# The check may fail if:
418# - make is not present
419# - corruption exists in the kernel makefile
420get_makefile_extract_function() {
421 local a='' b='' mkfunc='getfilevar'
422 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
423 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
424 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
425 echo "${mkfunc}"
426}
427
400# internal variable, so we know to only print the warning once 428# internal variable, so we know to only print the warning once
401get_version_warning_done= 429get_version_warning_done=
402 430
403# @FUNCTION: get_version 431# @FUNCTION: get_version
404# @DESCRIPTION: 432# @DESCRIPTION:
409# 437#
410# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 438# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
411# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the 439# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
412# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build). 440# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
413get_version() { 441get_version() {
414 local kbuild_output 442 local kbuild_output mkfunc tmplocal
415 443
416 # no need to execute this twice assuming KV_FULL is populated. 444 # no need to execute this twice assuming KV_FULL is populated.
417 # we can force by unsetting KV_FULL 445 # we can force by unsetting KV_FULL
418 [ -n "${KV_FULL}" ] && return 0 446 [ -n "${KV_FULL}" ] && return 0
419 447
463 # KBUILD_OUTPUT, and we need this for .config and localversions-* 491 # KBUILD_OUTPUT, and we need this for .config and localversions-*
464 # so we better find it eh? 492 # so we better find it eh?
465 # do we pass KBUILD_OUTPUT on the CLI? 493 # do we pass KBUILD_OUTPUT on the CLI?
466 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 494 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
467 495
496 # keep track of it
497 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
498
499 # Decide the function used to extract makefile variables.
500 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
501
468 # And if we didn't pass it, we can take a nosey in the Makefile 502 # And if we didn't pass it, we can take a nosey in the Makefile
469 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 503 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
470 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 504 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
471 505
472 # And contrary to existing functions I feel we shouldn't trust the 506 # And contrary to existing functions I feel we shouldn't trust the
473 # directory name to find version information as this seems insane. 507 # directory name to find version information as this seems insane.
474 # so we parse ${KV_DIR}/Makefile 508 # so we parse ${KERNEL_MAKEFILE}
475 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 509 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
476 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 510 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
477 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 511 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
478 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 512 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
479 513
480 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 514 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
481 then 515 then
482 if [ -z "${get_version_warning_done}" ]; then 516 if [ -z "${get_version_warning_done}" ]; then
483 get_version_warning_done=1 517 get_version_warning_done=1
489 523
490 # and in newer versions we can also pull LOCALVERSION if it is set. 524 # and in newer versions we can also pull LOCALVERSION if it is set.
491 # but before we do this, we need to find if we use a different object directory. 525 # but before we do this, we need to find if we use a different object directory.
492 # This *WILL* break if the user is using localversions, but we assume it was 526 # This *WILL* break if the user is using localversions, but we assume it was
493 # caught before this if they are. 527 # caught before this if they are.
494 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
495 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 528 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
496 529
497 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 530 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
498 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 531 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
499 if [ -n "${KV_OUT_DIR}" ]; 532 if [ -n "${KV_OUT_DIR}" ];
500 then 533 then
501 qeinfo "Found kernel object directory:" 534 qeinfo "Found kernel object directory:"
502 qeinfo " ${KV_OUT_DIR}" 535 qeinfo " ${KV_OUT_DIR}"
503
504 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
505 fi 536 fi
506 # and if we STILL have not got it, then we better just set it to KV_DIR 537 # and if we STILL have not got it, then we better just set it to KV_DIR
507 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 538 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
508 539
509 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 540 # Grab the kernel release from the output directory.
510 if linux_config_exists; then 541 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
511 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 542 # this function.
512 KV_LOCAL="${KV_LOCAL//\"/}" 543 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
544 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
545 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
546 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
547 else
548 KV_LOCAL=
549 fi
513 550
514 # For things like git that can append extra stuff: 551 # KV_LOCAL currently contains the full release; discard the first bits.
515 [ -e ${KV_DIR}/scripts/setlocalversion ] && 552 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
516 linux_chkconfig_builtin LOCALVERSION_AUTO && 553
517 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 554 # If the updated local version was not changed, the tree is not prepared.
555 # Clear out KV_LOCAL in that case.
556 # TODO: this does not detect a change in the localversion part between
557 # kernel.release and the value that would be generated.
558 if [ "$KV_LOCAL" = "$tmplocal" ]; then
559 KV_LOCAL=
560 else
561 KV_LOCAL=$tmplocal
518 fi 562 fi
519 563
520 # And we should set KV_FULL to the full expanded version 564 # And we should set KV_FULL to the full expanded version
521 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 565 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
522 566
531# It gets the version of the current running kernel and the result is the same as get_version() if the 575# It gets the version of the current running kernel and the result is the same as get_version() if the
532# function can find the sources. 576# function can find the sources.
533get_running_version() { 577get_running_version() {
534 KV_FULL=$(uname -r) 578 KV_FULL=$(uname -r)
535 579
580 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
581 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
582 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
583 unset KV_FULL
584 get_version
585 return $?
536 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 586 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
537 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 587 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
538 unset KV_FULL 588 unset KV_FULL
539 get_version 589 get_version
540 return $? 590 return $?
541 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 591 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
544 get_version 594 get_version
545 return $? 595 return $?
546 else 596 else
547 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 597 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
548 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 598 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
549 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 599 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
550 KV_PATCH=${KV_PATCH//-*} 600 KV_PATCH=${KV_PATCH//-*}
551 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 601 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
552 && KV_EXTRA="-${KV_FULL#*-}"
553 fi 602 fi
554 return 0 603 return 0
604}
605
606# This next function is named with the eclass prefix to avoid conflicts with
607# some old versionator-like eclass functions.
608
609# @FUNCTION: linux-info_get_any_version
610# @DESCRIPTION:
611# This attempts to find the version of the sources, and otherwise falls back to
612# the version of the running kernel.
613linux-info_get_any_version() {
614 get_version
615 if [[ $? -ne 0 ]]; then
616 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
617 get_running_version
618 fi
555} 619}
556 620
557 621
558# ebuild check functions 622# ebuild check functions
559# --------------------------------------- 623# ---------------------------------------
603# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 667# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
604# the prefix ~ is not used) doesn't satisfy the directive. 668# the prefix ~ is not used) doesn't satisfy the directive.
605check_extra_config() { 669check_extra_config() {
606 local config negate die error reworkmodulenames 670 local config negate die error reworkmodulenames
607 local soft_errors_count=0 hard_errors_count=0 config_required=0 671 local soft_errors_count=0 hard_errors_count=0 config_required=0
672 # store the value of the QA check, because otherwise we won't catch usages
673 # after if check_extra_config is called AND other direct calls are done
674 # later.
675 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
608 676
609 # if we haven't determined the version yet, we need to 677 # if we haven't determined the version yet, we need to
610 get_version 678 linux-info_get_any_version
611 679
612 # Determine if we really need a .config. The only time when we don't need 680 # Determine if we really need a .config. The only time when we don't need
613 # one is when all of the CONFIG_CHECK options are prefixed with "~". 681 # one is when all of the CONFIG_CHECK options are prefixed with "~".
614 for config in ${CONFIG_CHECK} 682 for config in ${CONFIG_CHECK}
615 do 683 do
623 # In the case where we don't require a .config, we can now bail out 691 # In the case where we don't require a .config, we can now bail out
624 # if the user has no .config as there is nothing to do. Otherwise 692 # if the user has no .config as there is nothing to do. Otherwise
625 # code later will cause a failure due to missing .config. 693 # code later will cause a failure due to missing .config.
626 if ! linux_config_exists; then 694 if ! linux_config_exists; then
627 ewarn "Unable to check for the following kernel config options due" 695 ewarn "Unable to check for the following kernel config options due"
628 ewarn "to absence of any configured kernel sources:" 696 ewarn "to absence of any configured kernel sources or compiled"
697 ewarn "config:"
629 for config in ${CONFIG_CHECK}; do 698 for config in ${CONFIG_CHECK}; do
699 local_error="ERROR_${config#\~}"
700 msg="${!local_error}"
701 if [[ "x${msg}" == "x" ]]; then
702 local_error="WARNING_${config#\~}"
703 msg="${!local_error}"
704 fi
630 ewarn " - ${config#\~}" 705 ewarn " - ${config#\~}${msg:+ - }${msg}"
631 done 706 done
632 ewarn "You're on your own to make sure they are set if needed." 707 ewarn "You're on your own to make sure they are set if needed."
708 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
633 return 0 709 return 0
634 fi 710 fi
635 else 711 else
636 require_configured_kernel 712 require_configured_kernel
637 fi 713 fi
714 if [[ ${hard_errors_count} > 0 ]]; then 790 if [[ ${hard_errors_count} > 0 ]]; then
715 eerror "Please check to make sure these options are set correctly." 791 eerror "Please check to make sure these options are set correctly."
716 eerror "Failure to do so may cause unexpected problems." 792 eerror "Failure to do so may cause unexpected problems."
717 eerror "Once you have satisfied these options, please try merging" 793 eerror "Once you have satisfied these options, please try merging"
718 eerror "this package again." 794 eerror "this package again."
795 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
719 die "Incorrect kernel configuration options" 796 die "Incorrect kernel configuration options"
720 elif [[ ${soft_errors_count} > 0 ]]; then 797 elif [[ ${soft_errors_count} > 0 ]]; then
721 ewarn "Please check to make sure these options are set correctly." 798 ewarn "Please check to make sure these options are set correctly."
722 ewarn "Failure to do so may cause unexpected problems." 799 ewarn "Failure to do so may cause unexpected problems."
723 else 800 else
724 eend 0 801 eend 0
725 fi 802 fi
803 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
726} 804}
727 805
728check_zlibinflate() { 806check_zlibinflate() {
729 # if we haven't determined the version yet, we need to 807 # if we haven't determined the version yet, we need to
730 require_configured_kernel 808 require_configured_kernel
801# @FUNCTION: linux-info_pkg_setup 879# @FUNCTION: linux-info_pkg_setup
802# @DESCRIPTION: 880# @DESCRIPTION:
803# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 881# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
804# to support the options specified in CONFIG_CHECK (if not null) 882# to support the options specified in CONFIG_CHECK (if not null)
805linux-info_pkg_setup() { 883linux-info_pkg_setup() {
806 get_version 884 linux-info_get_any_version
807 if [[ $rc -ne 0 ]]; then
808 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
809 get_running_version
810 fi
811 885
812 if kernel_is 2 4; then 886 if kernel_is 2 4; then
813 if [ "$( gcc-major-version )" -eq "4" ] ; then 887 if [ "$( gcc-major-version )" -eq "4" ] ; then
814 echo 888 echo
815 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 889 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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