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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 1.68 2009/09/06 23:36:04 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.91 2011/12/12 22:01:37 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="" 106DEPEND=""
114RDEPEND="" 107RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
117DEPEND="kernel_linux? ( virtual/linux-sources )"
118 108
119# Overwritable environment Var's 109# Overwritable environment Var's
120# --------------------------------------- 110# ---------------------------------------
121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 111KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
122 112
153 esac 143 esac
154 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 144 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
155} 145}
156 146
157qeinfo() { qout einfo "${@}" ; } 147qeinfo() { qout einfo "${@}" ; }
148qewarn() { qout ewarn "${@}" ; }
158qeerror() { qout eerror "${@}" ; } 149qeerror() { qout eerror "${@}" ; }
159 150
160# File Functions 151# File Functions
161# --------------------------------------- 152# ---------------------------------------
162 153
213 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."
214 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 205 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
215 else 206 else
216 ${mycat} "${2}" | \ 207 ${mycat} "${2}" | \
217 sed -n \ 208 sed -n \
218 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 209 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
219 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 210 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
220 s,[[:space:]]*\$,,g ; 211 s,[[:space:]]*\$,,g ;
221 p 212 p
222 }" 213 }"
223 fi 214 fi
224} 215}
225 216
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 $f will NOT guaranteed later!"
231 fi
232}
226 233
227# @FUNCTION: linux_config_src_exists 234# @FUNCTION: linux_config_src_exists
228# @RETURN: true or false 235# @RETURN: true or false
229# @DESCRIPTION: 236# @DESCRIPTION:
230# It returns true if .config exists in a build directory otherwise false 237# It returns true if .config exists in a build directory otherwise false
231linux_config_src_exists() { 238linux_config_src_exists() {
239 export _LINUX_CONFIG_EXISTS_DONE=1
232 [ -s "${KV_OUT_DIR}/.config" ] 240 [ -s "${KV_OUT_DIR}/.config" ]
233} 241}
234 242
235# @FUNCTION: linux_config_bin_exists 243# @FUNCTION: linux_config_bin_exists
236# @RETURN: true or false 244# @RETURN: true or false
237# @DESCRIPTION: 245# @DESCRIPTION:
238# It returns true if .config exists in /proc, otherwise false 246# It returns true if .config exists in /proc, otherwise false
239linux_config_bin_exists() { 247linux_config_bin_exists() {
248 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "/proc/config.gz" ] 249 [ -s "/proc/config.gz" ]
241} 250}
242 251
243# @FUNCTION: linux_config_exists 252# @FUNCTION: linux_config_exists
244# @RETURN: true or false 253# @RETURN: true or false
271# @DESCRIPTION: 280# @DESCRIPTION:
272# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 281# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
273# If linux_config_exists returns false, the results of this are UNDEFINED. You 282# If linux_config_exists returns false, the results of this are UNDEFINED. You
274# MUST call linux_config_exists first. 283# MUST call linux_config_exists first.
275linux_chkconfig_present() { 284linux_chkconfig_present() {
285 linux_config_qa_check linux_chkconfig_present
276local RESULT 286 local RESULT
277 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
278 local config 287 local config
279 config="${KV_OUT_DIR}/.config" 288 config="${KV_OUT_DIR}/.config"
280 [ ! -f "${config}" ] && config="/proc/config.gz" 289 [ ! -f "${config}" ] && config="/proc/config.gz"
281 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 290 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
282 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 291 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
288# @DESCRIPTION: 297# @DESCRIPTION:
289# 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
290# 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
291# MUST call linux_config_exists first. 300# MUST call linux_config_exists first.
292linux_chkconfig_module() { 301linux_chkconfig_module() {
302 linux_config_qa_check linux_chkconfig_module
293local RESULT 303 local RESULT
294 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
295 local config 304 local config
296 config="${KV_OUT_DIR}/.config" 305 config="${KV_OUT_DIR}/.config"
297 [ ! -f "${config}" ] && config="/proc/config.gz" 306 [ ! -f "${config}" ] && config="/proc/config.gz"
298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 307 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
299 [ "${RESULT}" = "m" ] && return 0 || return 1 308 [ "${RESULT}" = "m" ] && return 0 || return 1
305# @DESCRIPTION: 314# @DESCRIPTION:
306# It checks that CONFIG_<option>=y is present in the current kernel .config 315# It checks that CONFIG_<option>=y is present in the current kernel .config
307# If linux_config_exists returns false, the results of this are UNDEFINED. You 316# If linux_config_exists returns false, the results of this are UNDEFINED. You
308# MUST call linux_config_exists first. 317# MUST call linux_config_exists first.
309linux_chkconfig_builtin() { 318linux_chkconfig_builtin() {
319 linux_config_qa_check linux_chkconfig_builtin
310local RESULT 320 local RESULT
311 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
312 local config 321 local config
313 config="${KV_OUT_DIR}/.config" 322 config="${KV_OUT_DIR}/.config"
314 [ ! -f "${config}" ] && config="/proc/config.gz" 323 [ ! -f "${config}" ] && config="/proc/config.gz"
315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 324 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
316 [ "${RESULT}" = "y" ] && return 0 || return 1 325 [ "${RESULT}" = "y" ] && return 0 || return 1
322# @DESCRIPTION: 331# @DESCRIPTION:
323# 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).
324# 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
325# MUST call linux_config_exists first. 334# MUST call linux_config_exists first.
326linux_chkconfig_string() { 335linux_chkconfig_string() {
327 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 336 linux_config_qa_check linux_chkconfig_string
328 local config 337 local config
329 config="${KV_OUT_DIR}/.config" 338 config="${KV_OUT_DIR}/.config"
330 [ ! -f "${config}" ] && config="/proc/config.gz" 339 [ ! -f "${config}" ] && config="/proc/config.gz"
331 getfilevar_noexec "CONFIG_${1}" "${config}" 340 getfilevar_noexec "CONFIG_${1}" "${config}"
332} 341}
348# kernel_is 2 6 returns true 357# kernel_is 2 6 returns true
349# kernel_is 2 6 8 returns false 358# kernel_is 2 6 8 returns false
350# kernel_is 2 6 9 returns true 359# kernel_is 2 6 9 returns true
351# @CODE 360# @CODE
352 361
353# got the jist yet? 362# Note: duplicated in kernel-2.eclass
354
355kernel_is() { 363kernel_is() {
356 # if we haven't determined the version yet, we need to. 364 # if we haven't determined the version yet, we need to.
357 get_version 365 linux-info_get_any_version
366
367 # Now we can continue
358 local operator test value x=0 y=0 z=0 368 local operator test value
359 369
360 case ${1} in 370 case ${1#-} in
361 -lt|lt) operator="-lt"; shift;; 371 lt) operator="-lt"; shift;;
362 -gt|gt) operator="-gt"; shift;; 372 gt) operator="-gt"; shift;;
363 -le|le) operator="-le"; shift;; 373 le) operator="-le"; shift;;
364 -ge|ge) operator="-ge"; shift;; 374 ge) operator="-ge"; shift;;
365 -eq|eq) operator="-eq"; shift;; 375 eq) operator="-eq"; shift;;
366 *) operator="-eq";; 376 *) operator="-eq";;
367 esac 377 esac
368
369 for x in ${@}; do
370 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
371 value="${value}${x}"
372 z=$((${z} + 1))
373
374 case ${z} in
375 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
376 test="${test}${KV_MAJOR}";;
377 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
378 test="${test}${KV_MINOR}";;
379 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
380 test="${test}${KV_PATCH}";;
381 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 378 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
382 esac 379
383 done 380 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
384 381 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
385 [ ${test} ${operator} ${value} ] && return 0 || return 1 382 [ ${test} ${operator} ${value} ]
386} 383}
387 384
388get_localversion() { 385get_localversion() {
389 local lv_list i x 386 local lv_list i x
390 387
398 done 395 done
399 x=${x/ /} 396 x=${x/ /}
400 echo ${x} 397 echo ${x}
401} 398}
402 399
400# Check if the Makefile is valid for direct parsing.
401# Check status results:
402# - PASS, use 'getfilevar' to extract values
403# - FAIL, use 'getfilevar_noexec' to extract values
404# The check may fail if:
405# - make is not present
406# - corruption exists in the kernel makefile
407get_makefile_extract_function() {
408 local a='' b='' mkfunc='getfilevar'
409 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
410 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
411 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
412 echo "${mkfunc}"
413}
414
403# internal variable, so we know to only print the warning once 415# internal variable, so we know to only print the warning once
404get_version_warning_done= 416get_version_warning_done=
405 417
406# @FUNCTION: get_version 418# @FUNCTION: get_version
407# @DESCRIPTION: 419# @DESCRIPTION:
412# 424#
413# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 425# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
414# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the 426# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
415# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build). 427# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
416get_version() { 428get_version() {
417 local kbuild_output 429 local kbuild_output mkfunc tmplocal
418 430
419 # no need to execute this twice assuming KV_FULL is populated. 431 # no need to execute this twice assuming KV_FULL is populated.
420 # we can force by unsetting KV_FULL 432 # we can force by unsetting KV_FULL
421 [ -n "${KV_FULL}" ] && return 0 433 [ -n "${KV_FULL}" ] && return 0
422 434
466 # KBUILD_OUTPUT, and we need this for .config and localversions-* 478 # KBUILD_OUTPUT, and we need this for .config and localversions-*
467 # so we better find it eh? 479 # so we better find it eh?
468 # do we pass KBUILD_OUTPUT on the CLI? 480 # do we pass KBUILD_OUTPUT on the CLI?
469 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 481 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
470 482
483 # keep track of it
484 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
485
486 # Decide the function used to extract makefile variables.
487 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
488
471 # And if we didn't pass it, we can take a nosey in the Makefile 489 # And if we didn't pass it, we can take a nosey in the Makefile
472 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 490 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
473 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 491 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
474 492
475 # And contrary to existing functions I feel we shouldn't trust the 493 # And contrary to existing functions I feel we shouldn't trust the
476 # directory name to find version information as this seems insane. 494 # directory name to find version information as this seems insane.
477 # so we parse ${KV_DIR}/Makefile 495 # so we parse ${KERNEL_MAKEFILE}
478 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 496 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
479 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 497 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
480 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 498 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
481 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 499 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
482 500
483 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 501 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
484 then 502 then
485 if [ -z "${get_version_warning_done}" ]; then 503 if [ -z "${get_version_warning_done}" ]; then
486 get_version_warning_done=1 504 get_version_warning_done=1
492 510
493 # and in newer versions we can also pull LOCALVERSION if it is set. 511 # and in newer versions we can also pull LOCALVERSION if it is set.
494 # but before we do this, we need to find if we use a different object directory. 512 # but before we do this, we need to find if we use a different object directory.
495 # This *WILL* break if the user is using localversions, but we assume it was 513 # This *WILL* break if the user is using localversions, but we assume it was
496 # caught before this if they are. 514 # caught before this if they are.
497 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
498 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 515 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
499 516
500 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 517 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
501 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 518 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
502 if [ -n "${KV_OUT_DIR}" ]; 519 if [ -n "${KV_OUT_DIR}" ];
503 then 520 then
504 qeinfo "Found kernel object directory:" 521 qeinfo "Found kernel object directory:"
505 qeinfo " ${KV_OUT_DIR}" 522 qeinfo " ${KV_OUT_DIR}"
506
507 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
508 fi 523 fi
509 # and if we STILL have not got it, then we better just set it to KV_DIR 524 # and if we STILL have not got it, then we better just set it to KV_DIR
510 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 525 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
511 526
512 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 527 # Grab the kernel release from the output directory.
513 if linux_config_exists; then 528 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
514 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 529 # this function.
515 KV_LOCAL="${KV_LOCAL//\"/}" 530 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
531 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
532 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
533 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
534 else
535 KV_LOCAL=
536 fi
516 537
517 # For things like git that can append extra stuff: 538 # KV_LOCAL currently contains the full release; discard the first bits.
518 [ -e ${KV_DIR}/scripts/setlocalversion ] && 539 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
519 linux_chkconfig_builtin LOCALVERSION_AUTO && 540
520 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 541 # If the updated local version was not changed, the tree is not prepared.
542 # Clear out KV_LOCAL in that case.
543 # TODO: this does not detect a change in the localversion part between
544 # kernel.release and the value that would be generated.
545 if [ "$KV_LOCAL" = "$tmplocal" ]; then
546 KV_LOCAL=
547 else
548 KV_LOCAL=$tmplocal
521 fi 549 fi
522 550
523 # And we should set KV_FULL to the full expanded version 551 # And we should set KV_FULL to the full expanded version
524 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 552 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
525 553
534# It gets the version of the current running kernel and the result is the same as get_version() if the 562# It gets the version of the current running kernel and the result is the same as get_version() if the
535# function can find the sources. 563# function can find the sources.
536get_running_version() { 564get_running_version() {
537 KV_FULL=$(uname -r) 565 KV_FULL=$(uname -r)
538 566
567 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
568 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
569 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
570 unset KV_FULL
571 get_version
572 return $?
539 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 573 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
540 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
541 unset KV_FULL 575 unset KV_FULL
542 get_version 576 get_version
543 return $? 577 return $?
544 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
547 get_version 581 get_version
548 return $? 582 return $?
549 else 583 else
550 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 584 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
551 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 585 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
552 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 586 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
553 KV_PATCH=${KV_PATCH//-*} 587 KV_PATCH=${KV_PATCH//-*}
554 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 588 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
555 && KV_EXTRA="-${KV_FULL#*-}"
556 fi 589 fi
557 return 0 590 return 0
558} 591}
559 592
560# This next function is named with the eclass prefix to avoid conflicts with 593# This next function is named with the eclass prefix to avoid conflicts with
563# @FUNCTION: linux-info_get_any_version 596# @FUNCTION: linux-info_get_any_version
564# @DESCRIPTION: 597# @DESCRIPTION:
565# This attempts to find the version of the sources, and otherwise falls back to 598# This attempts to find the version of the sources, and otherwise falls back to
566# the version of the running kernel. 599# the version of the running kernel.
567linux-info_get_any_version() { 600linux-info_get_any_version() {
568 get_version 601 get_version
569 if [[ $? -ne 0 ]]; then 602 if [[ $? -ne 0 ]]; then
570 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version" 603 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
571 get_running_version 604 get_running_version
572 fi 605 fi
573} 606}
574 607
575 608
576# ebuild check functions 609# ebuild check functions
621# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 654# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
622# the prefix ~ is not used) doesn't satisfy the directive. 655# the prefix ~ is not used) doesn't satisfy the directive.
623check_extra_config() { 656check_extra_config() {
624 local config negate die error reworkmodulenames 657 local config negate die error reworkmodulenames
625 local soft_errors_count=0 hard_errors_count=0 config_required=0 658 local soft_errors_count=0 hard_errors_count=0 config_required=0
659 # store the value of the QA check, because otherwise we won't catch usages
660 # after if check_extra_config is called AND other direct calls are done
661 # later.
662 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
626 663
627 # if we haven't determined the version yet, we need to 664 # if we haven't determined the version yet, we need to
628 get_version 665 linux-info_get_any_version
629 666
630 # Determine if we really need a .config. The only time when we don't need 667 # Determine if we really need a .config. The only time when we don't need
631 # one is when all of the CONFIG_CHECK options are prefixed with "~". 668 # one is when all of the CONFIG_CHECK options are prefixed with "~".
632 for config in ${CONFIG_CHECK} 669 for config in ${CONFIG_CHECK}
633 do 670 do
644 if ! linux_config_exists; then 681 if ! linux_config_exists; then
645 ewarn "Unable to check for the following kernel config options due" 682 ewarn "Unable to check for the following kernel config options due"
646 ewarn "to absence of any configured kernel sources or compiled" 683 ewarn "to absence of any configured kernel sources or compiled"
647 ewarn "config:" 684 ewarn "config:"
648 for config in ${CONFIG_CHECK}; do 685 for config in ${CONFIG_CHECK}; do
686 local_error="ERROR_${config#\~}"
687 msg="${!local_error}"
688 if [[ "x${msg}" == "x" ]]; then
689 local_error="WARNING_${config#\~}"
690 msg="${!local_error}"
691 fi
649 ewarn " - ${config#\~}" 692 ewarn " - ${config#\~}${msg:+ - }${msg}"
650 done 693 done
651 ewarn "You're on your own to make sure they are set if needed." 694 ewarn "You're on your own to make sure they are set if needed."
695 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
652 return 0 696 return 0
653 fi 697 fi
654 else 698 else
655 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 699 require_configured_kernel
656 fi 700 fi
657 701
658 einfo "Checking for suitable kernel configuration options..." 702 einfo "Checking for suitable kernel configuration options..."
659 703
660 for config in ${CONFIG_CHECK} 704 for config in ${CONFIG_CHECK}
733 if [[ ${hard_errors_count} > 0 ]]; then 777 if [[ ${hard_errors_count} > 0 ]]; then
734 eerror "Please check to make sure these options are set correctly." 778 eerror "Please check to make sure these options are set correctly."
735 eerror "Failure to do so may cause unexpected problems." 779 eerror "Failure to do so may cause unexpected problems."
736 eerror "Once you have satisfied these options, please try merging" 780 eerror "Once you have satisfied these options, please try merging"
737 eerror "this package again." 781 eerror "this package again."
782 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
738 die "Incorrect kernel configuration options" 783 die "Incorrect kernel configuration options"
739 elif [[ ${soft_errors_count} > 0 ]]; then 784 elif [[ ${soft_errors_count} > 0 ]]; then
740 ewarn "Please check to make sure these options are set correctly." 785 ewarn "Please check to make sure these options are set correctly."
741 ewarn "Failure to do so may cause unexpected problems." 786 ewarn "Failure to do so may cause unexpected problems."
742 else 787 else
743 eend 0 788 eend 0
744 fi 789 fi
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
745} 791}
746 792
747check_zlibinflate() { 793check_zlibinflate() {
748 # if we haven't determined the version yet, we need to 794 # if we haven't determined the version yet, we need to
749 require_configured_kernel 795 require_configured_kernel

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