/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.65 Revision 1.89
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2006 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.65 2009/09/06 23:16:37 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.89 2011/08/18 14:58:57 vapier Exp $
4# 4#
5# Original author: John Mylchreest <johnm@gentoo.org> 5# Original author: John Mylchreest <johnm@gentoo.org>
6# Maintainer: kernel-misc@gentoo.org 6# Maintainer: kernel-misc@gentoo.org
7# 7#
8# Please direct your bugs to the current eclass maintainer :) 8# Please direct your bugs to the current eclass maintainer :)
40# You can also check that an option doesn't exist by 40# You can also check that an option doesn't exist by
41# prepending it with an exclamation mark (!). 41# prepending it with an exclamation mark (!).
42# 42#
43# e.g.: CONFIG_CHECK="!MTRR" 43# e.g.: CONFIG_CHECK="!MTRR"
44# 44#
45# To simply warn about a missing option, prepend a '~'. 45# To simply warn about a missing option, prepend a '~'.
46# It may be combined with '!'. 46# It may be combined with '!'.
47# 47#
48# In general, most checks should be non-fatal. The only time fatal checks should 48# 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 49# be used is for building kernel modules or cases that a compile will fail
50# without the option. 50# without the option.
99# @ECLASS-VARIABLE: KV_OUT_DIR 99# @ECLASS-VARIABLE: KV_OUT_DIR
100# @DESCRIPTION: 100# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless 101# 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. 102# KBUILD_OUTPUT is used. This should be used for referencing .config.
103 103
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 104# And to ensure all the weirdness with crosscompile
109inherit toolchain-funcs versionator 105inherit toolchain-funcs versionator
110 106
111EXPORT_FUNCTIONS pkg_setup 107EXPORT_FUNCTIONS pkg_setup
112 108
113DEPEND="" 109DEPEND=""
114RDEPEND="" 110RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
117DEPEND="kernel_linux? ( virtual/linux-sources )"
118 111
119# Overwritable environment Var's 112# Overwritable environment Var's
120# --------------------------------------- 113# ---------------------------------------
121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 114KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
122 115
153 esac 146 esac
154 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 147 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
155} 148}
156 149
157qeinfo() { qout einfo "${@}" ; } 150qeinfo() { qout einfo "${@}" ; }
151qewarn() { qout ewarn "${@}" ; }
158qeerror() { qout eerror "${@}" ; } 152qeerror() { qout eerror "${@}" ; }
159 153
160# File Functions 154# File Functions
161# --------------------------------------- 155# ---------------------------------------
162 156
213 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 207 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
214 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 208 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
215 else 209 else
216 ${mycat} "${2}" | \ 210 ${mycat} "${2}" | \
217 sed -n \ 211 sed -n \
218 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 212 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
219 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 213 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
220 s,[[:space:]]*\$,,g ; 214 s,[[:space:]]*\$,,g ;
221 p 215 p
222 }" 216 }"
223 fi 217 fi
224} 218}
225 219
220# @PRIVATE-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
221# @DESCRIPTION:
222# This is only set if one of the linux_config_*exists functions has been called.
223# We use it for a QA warning that the check for a config has not been performed,
224# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
225# config is available at all.
226_LINUX_CONFIG_EXISTS_DONE=
227
228linux_config_qa_check() {
229 local f="$1"
230 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
231 ewarn "QA: You called $f before any linux_config_exists!"
232 ewarn "QA: The return value of $f will NOT guaranteed later!"
233 fi
234}
226 235
227# @FUNCTION: linux_config_src_exists 236# @FUNCTION: linux_config_src_exists
228# @RETURN: true or false 237# @RETURN: true or false
229# @DESCRIPTION: 238# @DESCRIPTION:
230# It returns true if .config exists in a build directory otherwise false 239# It returns true if .config exists in a build directory otherwise false
231linux_config_src_exists() { 240linux_config_src_exists() {
241 export _LINUX_CONFIG_EXISTS_DONE=1
232 [ -s "${KV_OUT_DIR}/.config" ] 242 [ -s "${KV_OUT_DIR}/.config" ]
233} 243}
234 244
235# @FUNCTION: linux_config_bin_exists 245# @FUNCTION: linux_config_bin_exists
236# @RETURN: true or false 246# @RETURN: true or false
237# @DESCRIPTION: 247# @DESCRIPTION:
238# It returns true if .config exists in /proc, otherwise false 248# It returns true if .config exists in /proc, otherwise false
239linux_config_bin_exists() { 249linux_config_bin_exists() {
250 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "/proc/config.gz" ] 251 [ -s "/proc/config.gz" ]
241} 252}
242 253
243# @FUNCTION: linux_config_exists 254# @FUNCTION: linux_config_exists
244# @RETURN: true or false 255# @RETURN: true or false
271# @DESCRIPTION: 282# @DESCRIPTION:
272# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 283# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
273# If linux_config_exists returns false, the results of this are UNDEFINED. You 284# If linux_config_exists returns false, the results of this are UNDEFINED. You
274# MUST call linux_config_exists first. 285# MUST call linux_config_exists first.
275linux_chkconfig_present() { 286linux_chkconfig_present() {
287 linux_config_qa_check linux_chkconfig_present
276local RESULT 288 local RESULT
277 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
278 local config 289 local config
279 config="${KV_OUT_DIR}/.config" 290 config="${KV_OUT_DIR}/.config"
280 [ ! -f "${config}" ] && config="/proc/config.gz" 291 [ ! -f "${config}" ] && config="/proc/config.gz"
281 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 292 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
282 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 293 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
288# @DESCRIPTION: 299# @DESCRIPTION:
289# It checks that CONFIG_<option>=m is present in the current kernel .config 300# 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 301# If linux_config_exists returns false, the results of this are UNDEFINED. You
291# MUST call linux_config_exists first. 302# MUST call linux_config_exists first.
292linux_chkconfig_module() { 303linux_chkconfig_module() {
304 linux_config_qa_check linux_chkconfig_module
293local RESULT 305 local RESULT
294 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
295 local config 306 local config
296 config="${KV_OUT_DIR}/.config" 307 config="${KV_OUT_DIR}/.config"
297 [ ! -f "${config}" ] && config="/proc/config.gz" 308 [ ! -f "${config}" ] && config="/proc/config.gz"
298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 309 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
299 [ "${RESULT}" = "m" ] && return 0 || return 1 310 [ "${RESULT}" = "m" ] && return 0 || return 1
305# @DESCRIPTION: 316# @DESCRIPTION:
306# It checks that CONFIG_<option>=y is present in the current kernel .config 317# It checks that CONFIG_<option>=y is present in the current kernel .config
307# If linux_config_exists returns false, the results of this are UNDEFINED. You 318# If linux_config_exists returns false, the results of this are UNDEFINED. You
308# MUST call linux_config_exists first. 319# MUST call linux_config_exists first.
309linux_chkconfig_builtin() { 320linux_chkconfig_builtin() {
321 linux_config_qa_check linux_chkconfig_builtin
310local RESULT 322 local RESULT
311 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
312 local config 323 local config
313 config="${KV_OUT_DIR}/.config" 324 config="${KV_OUT_DIR}/.config"
314 [ ! -f "${config}" ] && config="/proc/config.gz" 325 [ ! -f "${config}" ] && config="/proc/config.gz"
315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 326 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
316 [ "${RESULT}" = "y" ] && return 0 || return 1 327 [ "${RESULT}" = "y" ] && return 0 || return 1
322# @DESCRIPTION: 333# @DESCRIPTION:
323# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 334# 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 335# If linux_config_exists returns false, the results of this are UNDEFINED. You
325# MUST call linux_config_exists first. 336# MUST call linux_config_exists first.
326linux_chkconfig_string() { 337linux_chkconfig_string() {
327 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 338 linux_config_qa_check linux_chkconfig_string
328 local config 339 local config
329 config="${KV_OUT_DIR}/.config" 340 config="${KV_OUT_DIR}/.config"
330 [ ! -f "${config}" ] && config="/proc/config.gz" 341 [ ! -f "${config}" ] && config="/proc/config.gz"
331 getfilevar_noexec "CONFIG_${1}" "${config}" 342 getfilevar_noexec "CONFIG_${1}" "${config}"
332} 343}
352 363
353# got the jist yet? 364# got the jist yet?
354 365
355kernel_is() { 366kernel_is() {
356 # if we haven't determined the version yet, we need to. 367 # if we haven't determined the version yet, we need to.
357 get_version 368 linux-info_get_any_version
369
358 local operator test value x=0 y=0 z=0 370 local operator testagainst value x=0 y=0 z=0
359 371
360 case ${1} in 372 case ${1} in
361 lt) operator="-lt"; shift;; 373 -lt|lt) operator="-lt"; shift;;
362 gt) operator="-gt"; shift;; 374 -gt|gt) operator="-gt"; shift;;
363 le) operator="-le"; shift;; 375 -le|le) operator="-le"; shift;;
364 ge) operator="-ge"; shift;; 376 -ge|ge) operator="-ge"; shift;;
365 eq) operator="-eq"; shift;; 377 -eq|eq) operator="-eq"; shift;;
366 *) operator="-eq";; 378 *) operator="-eq";;
367 esac 379 esac
368 380
369 for x in ${@}; do 381 for x in ${@}; do
370 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 382 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
371 value="${value}${x}" 383 value="${value}${x}"
372 z=$((${z} + 1)) 384 z=$((${z} + 1))
373 385
374 case ${z} in 386 case ${z} in
375 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 387 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
376 test="${test}${KV_MAJOR}";; 388 testagainst="${testagainst}${KV_MAJOR}";;
377 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done; 389 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do testagainst="${testagainst}0"; done;
378 test="${test}${KV_MINOR}";; 390 testagainst="${testagainst}${KV_MINOR}";;
379 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 391 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do testagainst="${testagainst}0"; done;
380 test="${test}${KV_PATCH}";; 392 testagainst="${testagainst}${KV_PATCH}";;
381 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 393 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
382 esac 394 esac
383 done 395 done
384 396
385 [ ${test} ${operator} ${value} ] && return 0 || return 1 397 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
386} 398}
387 399
388get_localversion() { 400get_localversion() {
389 local lv_list i x 401 local lv_list i x
390 402
398 done 410 done
399 x=${x/ /} 411 x=${x/ /}
400 echo ${x} 412 echo ${x}
401} 413}
402 414
415# Check if the Makefile is valid for direct parsing.
416# Check status results:
417# - PASS, use 'getfilevar' to extract values
418# - FAIL, use 'getfilevar_noexec' to extract values
419# The check may fail if:
420# - make is not present
421# - corruption exists in the kernel makefile
422get_makefile_extract_function() {
423 local a='' b='' mkfunc='getfilevar'
424 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
425 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
426 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
427 echo "${mkfunc}"
428}
429
403# internal variable, so we know to only print the warning once 430# internal variable, so we know to only print the warning once
404get_version_warning_done= 431get_version_warning_done=
405 432
406# @FUNCTION: get_version 433# @FUNCTION: get_version
407# @DESCRIPTION: 434# @DESCRIPTION:
412# 439#
413# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 440# 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 441# 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). 442# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
416get_version() { 443get_version() {
417 local kbuild_output 444 local kbuild_output mkfunc tmplocal
418 445
419 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
420 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
421 [ -n "${KV_FULL}" ] && return 0 448 [ -n "${KV_FULL}" ] && return 0
422 449
466 # KBUILD_OUTPUT, and we need this for .config and localversions-* 493 # KBUILD_OUTPUT, and we need this for .config and localversions-*
467 # so we better find it eh? 494 # so we better find it eh?
468 # do we pass KBUILD_OUTPUT on the CLI? 495 # do we pass KBUILD_OUTPUT on the CLI?
469 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
470 497
498 # keep track of it
499 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
500
501 # Decide the function used to extract makefile variables.
502 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
503
471 # And if we didn't pass it, we can take a nosey in the Makefile 504 # And if we didn't pass it, we can take a nosey in the Makefile
472 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 505 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
473 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 506 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
474 507
475 # And contrary to existing functions I feel we shouldn't trust the 508 # And contrary to existing functions I feel we shouldn't trust the
476 # directory name to find version information as this seems insane. 509 # directory name to find version information as this seems insane.
477 # so we parse ${KV_DIR}/Makefile 510 # so we parse ${KERNEL_MAKEFILE}
478 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 511 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
479 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 512 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
480 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 513 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
481 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 514 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
482 515
483 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 516 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
484 then 517 then
485 if [ -z "${get_version_warning_done}" ]; then 518 if [ -z "${get_version_warning_done}" ]; then
486 get_version_warning_done=1 519 get_version_warning_done=1
492 525
493 # and in newer versions we can also pull LOCALVERSION if it is set. 526 # and in newer versions we can also pull LOCALVERSION if it is set.
494 # but before we do this, we need to find if we use a different object directory. 527 # but before we do this, we need to find if we use a different object directory.
495 # This *WILL* break if the user is using localversions, but we assume it was 528 # This *WILL* break if the user is using localversions, but we assume it was
496 # caught before this if they are. 529 # caught before this if they are.
497 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
498 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 530 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
499 531
500 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
501 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
502 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
503 then 535 then
504 qeinfo "Found kernel object directory:" 536 qeinfo "Found kernel object directory:"
505 qeinfo " ${KV_OUT_DIR}" 537 qeinfo " ${KV_OUT_DIR}"
506
507 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
508 fi 538 fi
509 # and if we STILL have not got it, then we better just set it to KV_DIR 539 # and if we STILL have not got it, then we better just set it to KV_DIR
510 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 540 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
511 541
512 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 542 # Grab the kernel release from the output directory.
513 if linux_config_exists; then 543 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
514 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 544 # this function.
515 KV_LOCAL="${KV_LOCAL//\"/}" 545 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
546 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
547 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
548 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
549 else
550 KV_LOCAL=
551 fi
516 552
517 # For things like git that can append extra stuff: 553 # KV_LOCAL currently contains the full release; discard the first bits.
518 [ -e ${KV_DIR}/scripts/setlocalversion ] && 554 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
519 linux_chkconfig_builtin LOCALVERSION_AUTO && 555
520 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 556 # If the updated local version was not changed, the tree is not prepared.
557 # Clear out KV_LOCAL in that case.
558 # TODO: this does not detect a change in the localversion part between
559 # kernel.release and the value that would be generated.
560 if [ "$KV_LOCAL" = "$tmplocal" ]; then
561 KV_LOCAL=
562 else
563 KV_LOCAL=$tmplocal
521 fi 564 fi
522 565
523 # And we should set KV_FULL to the full expanded version 566 # And we should set KV_FULL to the full expanded version
524 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 567 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
525 568
534# It gets the version of the current running kernel and the result is the same as get_version() if the 577# 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. 578# function can find the sources.
536get_running_version() { 579get_running_version() {
537 KV_FULL=$(uname -r) 580 KV_FULL=$(uname -r)
538 581
582 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
583 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
584 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
585 unset KV_FULL
586 get_version
587 return $?
539 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 588 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
540 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 589 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
541 unset KV_FULL 590 unset KV_FULL
542 get_version 591 get_version
543 return $? 592 return $?
544 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 593 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
547 get_version 596 get_version
548 return $? 597 return $?
549 else 598 else
550 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 599 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
551 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 600 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
552 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 601 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
553 KV_PATCH=${KV_PATCH//-*} 602 KV_PATCH=${KV_PATCH//-*}
554 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 603 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
555 && KV_EXTRA="-${KV_FULL#*-}"
556 fi 604 fi
557 return 0 605 return 0
606}
607
608# This next function is named with the eclass prefix to avoid conflicts with
609# some old versionator-like eclass functions.
610
611# @FUNCTION: linux-info_get_any_version
612# @DESCRIPTION:
613# This attempts to find the version of the sources, and otherwise falls back to
614# the version of the running kernel.
615linux-info_get_any_version() {
616 get_version
617 if [[ $? -ne 0 ]]; then
618 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
619 get_running_version
620 fi
558} 621}
559 622
560 623
561# ebuild check functions 624# ebuild check functions
562# --------------------------------------- 625# ---------------------------------------
606# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 669# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
607# the prefix ~ is not used) doesn't satisfy the directive. 670# the prefix ~ is not used) doesn't satisfy the directive.
608check_extra_config() { 671check_extra_config() {
609 local config negate die error reworkmodulenames 672 local config negate die error reworkmodulenames
610 local soft_errors_count=0 hard_errors_count=0 config_required=0 673 local soft_errors_count=0 hard_errors_count=0 config_required=0
674 # store the value of the QA check, because otherwise we won't catch usages
675 # after if check_extra_config is called AND other direct calls are done
676 # later.
677 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
611 678
612 # if we haven't determined the version yet, we need to 679 # if we haven't determined the version yet, we need to
613 get_version 680 linux-info_get_any_version
614 681
615 # Determine if we really need a .config. The only time when we don't need 682 # Determine if we really need a .config. The only time when we don't need
616 # one is when all of the CONFIG_CHECK options are prefixed with "~". 683 # one is when all of the CONFIG_CHECK options are prefixed with "~".
617 for config in ${CONFIG_CHECK} 684 for config in ${CONFIG_CHECK}
618 do 685 do
629 if ! linux_config_exists; then 696 if ! linux_config_exists; then
630 ewarn "Unable to check for the following kernel config options due" 697 ewarn "Unable to check for the following kernel config options due"
631 ewarn "to absence of any configured kernel sources or compiled" 698 ewarn "to absence of any configured kernel sources or compiled"
632 ewarn "config:" 699 ewarn "config:"
633 for config in ${CONFIG_CHECK}; do 700 for config in ${CONFIG_CHECK}; do
701 local_error="ERROR_${config#\~}"
702 msg="${!local_error}"
703 if [[ "x${msg}" == "x" ]]; then
704 local_error="WARNING_${config#\~}"
705 msg="${!local_error}"
706 fi
634 ewarn " - ${config#\~}" 707 ewarn " - ${config#\~}${msg:+ - }${msg}"
635 done 708 done
636 ewarn "You're on your own to make sure they are set if needed." 709 ewarn "You're on your own to make sure they are set if needed."
710 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
637 return 0 711 return 0
638 fi 712 fi
639 else 713 else
640 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 714 require_configured_kernel
641 fi 715 fi
642 716
643 einfo "Checking for suitable kernel configuration options..." 717 einfo "Checking for suitable kernel configuration options..."
644 718
645 for config in ${CONFIG_CHECK} 719 for config in ${CONFIG_CHECK}
718 if [[ ${hard_errors_count} > 0 ]]; then 792 if [[ ${hard_errors_count} > 0 ]]; then
719 eerror "Please check to make sure these options are set correctly." 793 eerror "Please check to make sure these options are set correctly."
720 eerror "Failure to do so may cause unexpected problems." 794 eerror "Failure to do so may cause unexpected problems."
721 eerror "Once you have satisfied these options, please try merging" 795 eerror "Once you have satisfied these options, please try merging"
722 eerror "this package again." 796 eerror "this package again."
797 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
723 die "Incorrect kernel configuration options" 798 die "Incorrect kernel configuration options"
724 elif [[ ${soft_errors_count} > 0 ]]; then 799 elif [[ ${soft_errors_count} > 0 ]]; then
725 ewarn "Please check to make sure these options are set correctly." 800 ewarn "Please check to make sure these options are set correctly."
726 ewarn "Failure to do so may cause unexpected problems." 801 ewarn "Failure to do so may cause unexpected problems."
727 else 802 else
728 eend 0 803 eend 0
729 fi 804 fi
805 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
730} 806}
731 807
732check_zlibinflate() { 808check_zlibinflate() {
733 # if we haven't determined the version yet, we need to 809 # if we haven't determined the version yet, we need to
734 require_configured_kernel 810 require_configured_kernel
805# @FUNCTION: linux-info_pkg_setup 881# @FUNCTION: linux-info_pkg_setup
806# @DESCRIPTION: 882# @DESCRIPTION:
807# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 883# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
808# to support the options specified in CONFIG_CHECK (if not null) 884# to support the options specified in CONFIG_CHECK (if not null)
809linux-info_pkg_setup() { 885linux-info_pkg_setup() {
810 get_version 886 linux-info_get_any_version
811 if [[ $rc -ne 0 ]]; then
812 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
813 get_running_version
814 fi
815 887
816 if kernel_is 2 4; then 888 if kernel_is 2 4; then
817 if [ "$( gcc-major-version )" -eq "4" ] ; then 889 if [ "$( gcc-major-version )" -eq "4" ] ; then
818 echo 890 echo
819 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 891 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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