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Revision 1.63 Revision 1.91
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 1.91 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="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}
345# kernel_is 2 6 returns true 357# kernel_is 2 6 returns true
346# kernel_is 2 6 8 returns false 358# kernel_is 2 6 8 returns false
347# kernel_is 2 6 9 returns true 359# kernel_is 2 6 9 returns true
348# @CODE 360# @CODE
349 361
350# got the jist yet? 362# Note: duplicated in kernel-2.eclass
351
352kernel_is() { 363kernel_is() {
353 # if we haven't determined the version yet, we need to. 364 # if we haven't determined the version yet, we need to.
354 get_version 365 linux-info_get_any_version
366
367 # Now we can continue
355 local operator test value x=0 y=0 z=0 368 local operator test value
356 369
357 case ${1} in 370 case ${1#-} in
358 lt) operator="-lt"; shift;; 371 lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 372 gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 373 le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 374 ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 375 eq) operator="-eq"; shift;;
363 *) operator="-eq";; 376 *) operator="-eq";;
364 esac 377 esac
365
366 for x in ${@}; do
367 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
368 value="${value}${x}"
369 z=$((${z} + 1))
370
371 case ${z} in
372 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
373 test="${test}${KV_MAJOR}";;
374 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
375 test="${test}${KV_MINOR}";;
376 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
377 test="${test}${KV_PATCH}";;
378 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 378 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
379 esac 379
380 done 380 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
381 381 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 382 [ ${test} ${operator} ${value} ]
383} 383}
384 384
385get_localversion() { 385get_localversion() {
386 local lv_list i x 386 local lv_list i x
387 387
395 done 395 done
396 x=${x/ /} 396 x=${x/ /}
397 echo ${x} 397 echo ${x}
398} 398}
399 399
400# Check if the Makefile is valid for direct parsing.
401# Check status results:
402# - PASS, use 'getfilevar' to extract values
403# - FAIL, use 'getfilevar_noexec' to extract values
404# The check may fail if:
405# - make is not present
406# - corruption exists in the kernel makefile
407get_makefile_extract_function() {
408 local a='' b='' mkfunc='getfilevar'
409 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
410 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
411 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
412 echo "${mkfunc}"
413}
414
400# internal variable, so we know to only print the warning once 415# internal variable, so we know to only print the warning once
401get_version_warning_done= 416get_version_warning_done=
402 417
403# @FUNCTION: get_version 418# @FUNCTION: get_version
404# @DESCRIPTION: 419# @DESCRIPTION:
409# 424#
410# 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
411# 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
412# 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).
413get_version() { 428get_version() {
414 local kbuild_output 429 local kbuild_output mkfunc tmplocal
415 430
416 # no need to execute this twice assuming KV_FULL is populated. 431 # no need to execute this twice assuming KV_FULL is populated.
417 # we can force by unsetting KV_FULL 432 # we can force by unsetting KV_FULL
418 [ -n "${KV_FULL}" ] && return 0 433 [ -n "${KV_FULL}" ] && return 0
419 434
463 # KBUILD_OUTPUT, and we need this for .config and localversions-* 478 # KBUILD_OUTPUT, and we need this for .config and localversions-*
464 # so we better find it eh? 479 # so we better find it eh?
465 # do we pass KBUILD_OUTPUT on the CLI? 480 # do we pass KBUILD_OUTPUT on the CLI?
466 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 481 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
467 482
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 "${KERNEL_MAKEFILE}")"
488
468 # And if we didn't pass it, we can take a nosey in the Makefile 489 # And if we didn't pass it, we can take a nosey in the Makefile
469 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 490 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
470 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 491 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
471 492
472 # 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
473 # directory name to find version information as this seems insane. 494 # directory name to find version information as this seems insane.
474 # so we parse ${KV_DIR}/Makefile 495 # so we parse ${KERNEL_MAKEFILE}
475 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 496 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
476 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 497 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
477 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 498 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
478 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 499 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
479 500
480 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 501 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
481 then 502 then
482 if [ -z "${get_version_warning_done}" ]; then 503 if [ -z "${get_version_warning_done}" ]; then
483 get_version_warning_done=1 504 get_version_warning_done=1
489 510
490 # and in newer versions we can also pull LOCALVERSION if it is set. 511 # and in newer versions we can also pull LOCALVERSION if it is set.
491 # but before we do this, we need to find if we use a different object directory. 512 # but before we do this, we need to find if we use a different object directory.
492 # This *WILL* break if the user is using localversions, but we assume it was 513 # This *WILL* break if the user is using localversions, but we assume it was
493 # caught before this if they are. 514 # caught before this if they are.
494 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
495 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 515 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
496 516
497 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 517 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
498 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 518 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
499 if [ -n "${KV_OUT_DIR}" ]; 519 if [ -n "${KV_OUT_DIR}" ];
500 then 520 then
501 qeinfo "Found kernel object directory:" 521 qeinfo "Found kernel object directory:"
502 qeinfo " ${KV_OUT_DIR}" 522 qeinfo " ${KV_OUT_DIR}"
503
504 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
505 fi 523 fi
506 # and if we STILL have not got it, then we better just set it to KV_DIR 524 # and if we STILL have not got it, then we better just set it to KV_DIR
507 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 525 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
508 526
509 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 527 # Grab the kernel release from the output directory.
510 if linux_config_exists; then 528 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
511 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 529 # this function.
512 KV_LOCAL="${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
513 537
514 # For things like git that can append extra stuff: 538 # KV_LOCAL currently contains the full release; discard the first bits.
515 [ -e ${KV_DIR}/scripts/setlocalversion ] && 539 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
516 linux_chkconfig_builtin LOCALVERSION_AUTO && 540
517 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
518 fi 549 fi
519 550
520 # And we should set KV_FULL to the full expanded version 551 # And we should set KV_FULL to the full expanded version
521 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}"
522 553
531# 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
532# function can find the sources. 563# function can find the sources.
533get_running_version() { 564get_running_version() {
534 KV_FULL=$(uname -r) 565 KV_FULL=$(uname -r)
535 566
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 $?
536 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 573 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
537 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
538 unset KV_FULL 575 unset KV_FULL
539 get_version 576 get_version
540 return $? 577 return $?
541 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
544 get_version 581 get_version
545 return $? 582 return $?
546 else 583 else
547 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 584 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
548 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 585 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
549 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 586 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
550 KV_PATCH=${KV_PATCH//-*} 587 KV_PATCH=${KV_PATCH//-*}
551 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 588 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
552 && KV_EXTRA="-${KV_FULL#*-}"
553 fi 589 fi
554 return 0 590 return 0
591}
592
593# This next function is named with the eclass prefix to avoid conflicts with
594# some old versionator-like eclass functions.
595
596# @FUNCTION: linux-info_get_any_version
597# @DESCRIPTION:
598# This attempts to find the version of the sources, and otherwise falls back to
599# the version of the running kernel.
600linux-info_get_any_version() {
601 get_version
602 if [[ $? -ne 0 ]]; then
603 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
604 get_running_version
605 fi
555} 606}
556 607
557 608
558# ebuild check functions 609# ebuild check functions
559# --------------------------------------- 610# ---------------------------------------
603# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 654# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
604# the prefix ~ is not used) doesn't satisfy the directive. 655# the prefix ~ is not used) doesn't satisfy the directive.
605check_extra_config() { 656check_extra_config() {
606 local config negate die error reworkmodulenames 657 local config negate die error reworkmodulenames
607 local soft_errors_count=0 hard_errors_count=0 config_required=0 658 local soft_errors_count=0 hard_errors_count=0 config_required=0
659 # store the value of the QA check, because otherwise we won't catch usages
660 # after if check_extra_config is called AND other direct calls are done
661 # later.
662 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
608 663
609 # if we haven't determined the version yet, we need to 664 # if we haven't determined the version yet, we need to
610 get_version 665 linux-info_get_any_version
611 666
612 # 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
613 # 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 "~".
614 for config in ${CONFIG_CHECK} 669 for config in ${CONFIG_CHECK}
615 do 670 do
623 # In the case where we don't require a .config, we can now bail out 678 # 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 679 # if the user has no .config as there is nothing to do. Otherwise
625 # code later will cause a failure due to missing .config. 680 # code later will cause a failure due to missing .config.
626 if ! linux_config_exists; then 681 if ! linux_config_exists; then
627 ewarn "Unable to check for the following kernel config options due" 682 ewarn "Unable to check for the following kernel config options due"
628 ewarn "to absence of any configured kernel sources:" 683 ewarn "to absence of any configured kernel sources or compiled"
684 ewarn "config:"
629 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
630 ewarn " - ${config#\~}" 692 ewarn " - ${config#\~}${msg:+ - }${msg}"
631 done 693 done
632 ewarn "You're on your own to make sure they are set if needed." 694 ewarn "You're on your own to make sure they are set if needed."
695 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
633 return 0 696 return 0
634 fi 697 fi
635 else 698 else
636 require_configured_kernel 699 require_configured_kernel
637 fi 700 fi
714 if [[ ${hard_errors_count} > 0 ]]; then 777 if [[ ${hard_errors_count} > 0 ]]; then
715 eerror "Please check to make sure these options are set correctly." 778 eerror "Please check to make sure these options are set correctly."
716 eerror "Failure to do so may cause unexpected problems." 779 eerror "Failure to do so may cause unexpected problems."
717 eerror "Once you have satisfied these options, please try merging" 780 eerror "Once you have satisfied these options, please try merging"
718 eerror "this package again." 781 eerror "this package again."
782 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
719 die "Incorrect kernel configuration options" 783 die "Incorrect kernel configuration options"
720 elif [[ ${soft_errors_count} > 0 ]]; then 784 elif [[ ${soft_errors_count} > 0 ]]; then
721 ewarn "Please check to make sure these options are set correctly." 785 ewarn "Please check to make sure these options are set correctly."
722 ewarn "Failure to do so may cause unexpected problems." 786 ewarn "Failure to do so may cause unexpected problems."
723 else 787 else
724 eend 0 788 eend 0
725 fi 789 fi
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
726} 791}
727 792
728check_zlibinflate() { 793check_zlibinflate() {
729 # if we haven't determined the version yet, we need to 794 # if we haven't determined the version yet, we need to
730 require_configured_kernel 795 require_configured_kernel
801# @FUNCTION: linux-info_pkg_setup 866# @FUNCTION: linux-info_pkg_setup
802# @DESCRIPTION: 867# @DESCRIPTION:
803# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 868# 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) 869# to support the options specified in CONFIG_CHECK (if not null)
805linux-info_pkg_setup() { 870linux-info_pkg_setup() {
806 get_version 871 linux-info_get_any_version
807 if [[ $rc -ne 0 ]]; then
808 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
809 get_running_version
810 fi
811 872
812 if kernel_is 2 4; then 873 if kernel_is 2 4; then
813 if [ "$( gcc-major-version )" -eq "4" ] ; then 874 if [ "$( gcc-major-version )" -eq "4" ] ; then
814 echo 875 echo
815 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 876 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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