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1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2012 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 1.93 2012/10/22 19:00:52 mpagano 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
19# using additional eclasses. 16# using additional eclasses.
20# 17#
21# "kernel config" in this file means: 18# "kernel config" in this file means:
22# The .config of the currently installed sources is used as the first 19# The .config of the currently installed sources is used as the first
23# preference, with a fall-back to bundled config (/proc/config.gz) if available. 20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
21#
22# Before using any of the config-handling functions in this eclass, you must
23# ensure that one of the following functions has been called (in order of
24# preference), otherwise you will get bugs like #364041):
25# linux-info_pkg_setup
26# linux-info_get_any_version
27# get_version
28# get_running_version
24 29
25# A Couple of env vars are available to effect usage of this eclass 30# A Couple of env vars are available to effect usage of this eclass
26# These are as follows: 31# These are as follows:
27 32
28# @ECLASS-VARIABLE: KERNEL_DIR 33# @ECLASS-VARIABLE: KERNEL_DIR
40# You can also check that an option doesn't exist by 45# You can also check that an option doesn't exist by
41# prepending it with an exclamation mark (!). 46# prepending it with an exclamation mark (!).
42# 47#
43# e.g.: CONFIG_CHECK="!MTRR" 48# e.g.: CONFIG_CHECK="!MTRR"
44# 49#
45# To simply warn about a missing option, prepend a '~'. 50# To simply warn about a missing option, prepend a '~'.
46# It may be combined with '!'. 51# It may be combined with '!'.
47# 52#
48# In general, most checks should be non-fatal. The only time fatal checks should 53# 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 54# be used is for building kernel modules or cases that a compile will fail
50# without the option. 55# without the option.
99# @ECLASS-VARIABLE: KV_OUT_DIR 104# @ECLASS-VARIABLE: KV_OUT_DIR
100# @DESCRIPTION: 105# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless 106# 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. 107# KBUILD_OUTPUT is used. This should be used for referencing .config.
103 108
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 109# And to ensure all the weirdness with crosscompile
109inherit toolchain-funcs versionator 110inherit toolchain-funcs versionator
110 111
111EXPORT_FUNCTIONS pkg_setup 112EXPORT_FUNCTIONS pkg_setup
112 113
113DEPEND="kernel_linux? ( virtual/linux-sources )" 114DEPEND=""
114RDEPEND="" 115RDEPEND=""
115 116
116# Overwritable environment Var's 117# Overwritable environment Var's
117# --------------------------------------- 118# ---------------------------------------
118KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
150 esac 151 esac
151 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
152} 153}
153 154
154qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
155qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
156 158
157# File Functions 159# File Functions
158# --------------------------------------- 160# ---------------------------------------
159 161
200 ERROR=0 202 ERROR=0
201 mycat='cat' 203 mycat='cat'
202 204
203 [ -z "${1}" ] && ERROR=1 205 [ -z "${1}" ] && ERROR=1
204 [ ! -f "${2}" ] && ERROR=1 206 [ ! -f "${2}" ] && ERROR=1
205 [ "${2#.gz}" != "${2}" ] && mycat='zcat' 207 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
206 208
207 if [ "${ERROR}" = 1 ] 209 if [ "${ERROR}" = 1 ]
208 then 210 then
209 echo -e "\n" 211 echo -e "\n"
210 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 212 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
211 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 213 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
212 else 214 else
213 ${mycat} "${2}" | \ 215 ${mycat} "${2}" | \
214 sed -n \ 216 sed -n \
215 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 217 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
216 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 218 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
217 s,[[:space:]]*\$,,g ; 219 s,[[:space:]]*\$,,g ;
218 p 220 p
219 }" 221 }"
220 fi 222 fi
221} 223}
222 224
225# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
226# @INTERNAL
227# @DESCRIPTION:
228# This is only set if one of the linux_config_*exists functions has been called.
229# We use it for a QA warning that the check for a config has not been performed,
230# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
231# config is available at all.
232_LINUX_CONFIG_EXISTS_DONE=
233
234linux_config_qa_check() {
235 local f="$1"
236 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
237 ewarn "QA: You called $f before any linux_config_exists!"
238 ewarn "QA: The return value of $f will NOT guaranteed later!"
239 fi
240}
223 241
224# @FUNCTION: linux_config_src_exists 242# @FUNCTION: linux_config_src_exists
225# @RETURN: true or false 243# @RETURN: true or false
226# @DESCRIPTION: 244# @DESCRIPTION:
227# It returns true if .config exists in a build directory otherwise false 245# It returns true if .config exists in a build directory otherwise false
228linux_config_src_exists() { 246linux_config_src_exists() {
247 export _LINUX_CONFIG_EXISTS_DONE=1
229 [ -s "${KV_OUT_DIR}/.config" ] 248 [ -s "${KV_OUT_DIR}/.config" ]
230} 249}
231 250
232# @FUNCTION: linux_config_bin_exists 251# @FUNCTION: linux_config_bin_exists
233# @RETURN: true or false 252# @RETURN: true or false
234# @DESCRIPTION: 253# @DESCRIPTION:
235# It returns true if .config exists in /proc, otherwise false 254# It returns true if .config exists in /proc, otherwise false
236linux_config_bin_exists() { 255linux_config_bin_exists() {
256 export _LINUX_CONFIG_EXISTS_DONE=1
237 [ -s "/proc/config.gz" ] 257 [ -s "/proc/config.gz" ]
238} 258}
239 259
240# @FUNCTION: linux_config_exists 260# @FUNCTION: linux_config_exists
241# @RETURN: true or false 261# @RETURN: true or false
268# @DESCRIPTION: 288# @DESCRIPTION:
269# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 289# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
270# If linux_config_exists returns false, the results of this are UNDEFINED. You 290# If linux_config_exists returns false, the results of this are UNDEFINED. You
271# MUST call linux_config_exists first. 291# MUST call linux_config_exists first.
272linux_chkconfig_present() { 292linux_chkconfig_present() {
293 linux_config_qa_check linux_chkconfig_present
273local RESULT 294 local RESULT
274 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
275 local config 295 local config
276 config="${KV_OUT_DIR}/.config" 296 config="${KV_OUT_DIR}/.config"
277 [ ! -f "${config}" ] && config="/proc/config.gz" 297 [ ! -f "${config}" ] && config="/proc/config.gz"
278 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
279 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 299 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
285# @DESCRIPTION: 305# @DESCRIPTION:
286# It checks that CONFIG_<option>=m is present in the current kernel .config 306# 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 307# If linux_config_exists returns false, the results of this are UNDEFINED. You
288# MUST call linux_config_exists first. 308# MUST call linux_config_exists first.
289linux_chkconfig_module() { 309linux_chkconfig_module() {
310 linux_config_qa_check linux_chkconfig_module
290local RESULT 311 local RESULT
291 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
292 local config 312 local config
293 config="${KV_OUT_DIR}/.config" 313 config="${KV_OUT_DIR}/.config"
294 [ ! -f "${config}" ] && config="/proc/config.gz" 314 [ ! -f "${config}" ] && config="/proc/config.gz"
295 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
296 [ "${RESULT}" = "m" ] && return 0 || return 1 316 [ "${RESULT}" = "m" ] && return 0 || return 1
302# @DESCRIPTION: 322# @DESCRIPTION:
303# It checks that CONFIG_<option>=y is present in the current kernel .config 323# It checks that CONFIG_<option>=y is present in the current kernel .config
304# If linux_config_exists returns false, the results of this are UNDEFINED. You 324# If linux_config_exists returns false, the results of this are UNDEFINED. You
305# MUST call linux_config_exists first. 325# MUST call linux_config_exists first.
306linux_chkconfig_builtin() { 326linux_chkconfig_builtin() {
327 linux_config_qa_check linux_chkconfig_builtin
307local RESULT 328 local RESULT
308 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
309 local config 329 local config
310 config="${KV_OUT_DIR}/.config" 330 config="${KV_OUT_DIR}/.config"
311 [ ! -f "${config}" ] && config="/proc/config.gz" 331 [ ! -f "${config}" ] && config="/proc/config.gz"
312 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 332 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
313 [ "${RESULT}" = "y" ] && return 0 || return 1 333 [ "${RESULT}" = "y" ] && return 0 || return 1
319# @DESCRIPTION: 339# @DESCRIPTION:
320# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 340# 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 341# If linux_config_exists returns false, the results of this are UNDEFINED. You
322# MUST call linux_config_exists first. 342# MUST call linux_config_exists first.
323linux_chkconfig_string() { 343linux_chkconfig_string() {
324 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 344 linux_config_qa_check linux_chkconfig_string
325 local config 345 local config
326 config="${KV_OUT_DIR}/.config" 346 config="${KV_OUT_DIR}/.config"
327 [ ! -f "${config}" ] && config="/proc/config.gz" 347 [ ! -f "${config}" ] && config="/proc/config.gz"
328 getfilevar_noexec "CONFIG_${1}" "${config}" 348 getfilevar_noexec "CONFIG_${1}" "${config}"
329} 349}
345# kernel_is 2 6 returns true 365# kernel_is 2 6 returns true
346# kernel_is 2 6 8 returns false 366# kernel_is 2 6 8 returns false
347# kernel_is 2 6 9 returns true 367# kernel_is 2 6 9 returns true
348# @CODE 368# @CODE
349 369
350# got the jist yet? 370# Note: duplicated in kernel-2.eclass
351
352kernel_is() { 371kernel_is() {
353 # if we haven't determined the version yet, we need to. 372 # if we haven't determined the version yet, we need to.
354 get_version 373 linux-info_get_any_version
374
375 # Now we can continue
355 local operator test value x=0 y=0 z=0 376 local operator test value
356 377
357 case ${1} in 378 case ${1#-} in
358 lt) operator="-lt"; shift;; 379 lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 380 gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 381 le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 382 ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 383 eq) operator="-eq"; shift;;
363 *) operator="-eq";; 384 *) operator="-eq";;
364 esac 385 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.";; 386 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
379 esac 387
380 done 388 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
381 389 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 390 [ ${test} ${operator} ${value} ]
383} 391}
384 392
385get_localversion() { 393get_localversion() {
386 local lv_list i x 394 local lv_list i x
387 395
395 done 403 done
396 x=${x/ /} 404 x=${x/ /}
397 echo ${x} 405 echo ${x}
398} 406}
399 407
408# Check if the Makefile is valid for direct parsing.
409# Check status results:
410# - PASS, use 'getfilevar' to extract values
411# - FAIL, use 'getfilevar_noexec' to extract values
412# The check may fail if:
413# - make is not present
414# - corruption exists in the kernel makefile
415get_makefile_extract_function() {
416 local a='' b='' mkfunc='getfilevar'
417 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
418 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
419 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
420 echo "${mkfunc}"
421}
422
400# internal variable, so we know to only print the warning once 423# internal variable, so we know to only print the warning once
401get_version_warning_done= 424get_version_warning_done=
402 425
403# @FUNCTION: get_version 426# @FUNCTION: get_version
404# @DESCRIPTION: 427# @DESCRIPTION:
409# 432#
410# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 433# 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 434# 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). 435# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
413get_version() { 436get_version() {
414 local kbuild_output 437 local kbuild_output mkfunc tmplocal
415 438
416 # no need to execute this twice assuming KV_FULL is populated. 439 # no need to execute this twice assuming KV_FULL is populated.
417 # we can force by unsetting KV_FULL 440 # we can force by unsetting KV_FULL
418 [ -n "${KV_FULL}" ] && return 0 441 [ -n "${KV_FULL}" ] && return 0
419 442
463 # KBUILD_OUTPUT, and we need this for .config and localversions-* 486 # KBUILD_OUTPUT, and we need this for .config and localversions-*
464 # so we better find it eh? 487 # so we better find it eh?
465 # do we pass KBUILD_OUTPUT on the CLI? 488 # do we pass KBUILD_OUTPUT on the CLI?
466 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 489 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
467 490
491 # keep track of it
492 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
493
494 # Decide the function used to extract makefile variables.
495 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
496
468 # And if we didn't pass it, we can take a nosey in the Makefile 497 # And if we didn't pass it, we can take a nosey in the Makefile
469 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 498 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
470 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 499 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
471 500
472 # And contrary to existing functions I feel we shouldn't trust the 501 # And contrary to existing functions I feel we shouldn't trust the
473 # directory name to find version information as this seems insane. 502 # directory name to find version information as this seems insane.
474 # so we parse ${KV_DIR}/Makefile 503 # so we parse ${KERNEL_MAKEFILE}
475 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 504 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
476 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 505 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
477 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 506 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
478 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 507 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
479 508
480 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 509 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
481 then 510 then
482 if [ -z "${get_version_warning_done}" ]; then 511 if [ -z "${get_version_warning_done}" ]; then
483 get_version_warning_done=1 512 get_version_warning_done=1
489 518
490 # and in newer versions we can also pull LOCALVERSION if it is set. 519 # and in newer versions we can also pull LOCALVERSION if it is set.
491 # but before we do this, we need to find if we use a different object directory. 520 # but before we do this, we need to find if we use a different object directory.
492 # This *WILL* break if the user is using localversions, but we assume it was 521 # This *WILL* break if the user is using localversions, but we assume it was
493 # caught before this if they are. 522 # caught before this if they are.
494 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
495 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 523 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
496 524
497 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 525 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
498 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 526 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
499 if [ -n "${KV_OUT_DIR}" ]; 527 if [ -n "${KV_OUT_DIR}" ];
500 then 528 then
501 qeinfo "Found kernel object directory:" 529 qeinfo "Found kernel object directory:"
502 qeinfo " ${KV_OUT_DIR}" 530 qeinfo " ${KV_OUT_DIR}"
503
504 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
505 fi 531 fi
506 # and if we STILL have not got it, then we better just set it to KV_DIR 532 # and if we STILL have not got it, then we better just set it to KV_DIR
507 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 533 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
508 534
509 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 535 # Grab the kernel release from the output directory.
510 if linux_config_exists; then 536 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
511 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 537 # this function.
512 KV_LOCAL="${KV_LOCAL//\"/}" 538 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
539 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
540 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
541 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
542 else
543 KV_LOCAL=
544 fi
513 545
514 # For things like git that can append extra stuff: 546 # KV_LOCAL currently contains the full release; discard the first bits.
515 [ -e ${KV_DIR}/scripts/setlocalversion ] && 547 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
516 linux_chkconfig_builtin LOCALVERSION_AUTO && 548
517 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 549 # If the updated local version was not changed, the tree is not prepared.
550 # Clear out KV_LOCAL in that case.
551 # TODO: this does not detect a change in the localversion part between
552 # kernel.release and the value that would be generated.
553 if [ "$KV_LOCAL" = "$tmplocal" ]; then
554 KV_LOCAL=
555 else
556 KV_LOCAL=$tmplocal
518 fi 557 fi
519 558
520 # And we should set KV_FULL to the full expanded version 559 # And we should set KV_FULL to the full expanded version
521 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 560 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
522 561
531# It gets the version of the current running kernel and the result is the same as get_version() if the 570# 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. 571# function can find the sources.
533get_running_version() { 572get_running_version() {
534 KV_FULL=$(uname -r) 573 KV_FULL=$(uname -r)
535 574
575 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
576 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
577 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
578 unset KV_FULL
579 get_version
580 return $?
536 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 581 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
537 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 582 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
538 unset KV_FULL 583 unset KV_FULL
539 get_version 584 get_version
540 return $? 585 return $?
541 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 586 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
544 get_version 589 get_version
545 return $? 590 return $?
546 else 591 else
547 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 592 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
548 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 593 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
549 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 594 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
550 KV_PATCH=${KV_PATCH//-*} 595 KV_PATCH=${KV_PATCH//-*}
551 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 596 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
552 && KV_EXTRA="-${KV_FULL#*-}"
553 fi 597 fi
554 return 0 598 return 0
599}
600
601# This next function is named with the eclass prefix to avoid conflicts with
602# some old versionator-like eclass functions.
603
604# @FUNCTION: linux-info_get_any_version
605# @DESCRIPTION:
606# This attempts to find the version of the sources, and otherwise falls back to
607# the version of the running kernel.
608linux-info_get_any_version() {
609 get_version
610 if [[ $? -ne 0 ]]; then
611 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
612 get_running_version
613 fi
555} 614}
556 615
557 616
558# ebuild check functions 617# ebuild check functions
559# --------------------------------------- 618# ---------------------------------------
564check_kernel_built() { 623check_kernel_built() {
565 # if we haven't determined the version yet, we need to 624 # if we haven't determined the version yet, we need to
566 require_configured_kernel 625 require_configured_kernel
567 get_version 626 get_version
568 627
628 local versionh_path
629 if kernel_is -ge 3 7; then
630 versionh_path="include/generated/uapi/linux/version.h"
631 else
632 versionh_path="include/linux/version.h"
633 fi
634
569 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 635 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
570 then 636 then
571 eerror "These sources have not yet been prepared." 637 eerror "These sources have not yet been prepared."
572 eerror "We cannot build against an unprepared tree." 638 eerror "We cannot build against an unprepared tree."
573 eerror "To resolve this, please type the following:" 639 eerror "To resolve this, please type the following:"
574 eerror 640 eerror
603# 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.
604# the prefix ~ is not used) doesn't satisfy the directive. 670# the prefix ~ is not used) doesn't satisfy the directive.
605check_extra_config() { 671check_extra_config() {
606 local config negate die error reworkmodulenames 672 local config negate die error reworkmodulenames
607 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}"
608 678
609 # if we haven't determined the version yet, we need to 679 # if we haven't determined the version yet, we need to
610 get_version 680 linux-info_get_any_version
611 681
612 # 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
613 # 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 "~".
614 for config in ${CONFIG_CHECK} 684 for config in ${CONFIG_CHECK}
615 do 685 do
623 # In the case where we don't require a .config, we can now bail out 693 # 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 694 # if the user has no .config as there is nothing to do. Otherwise
625 # code later will cause a failure due to missing .config. 695 # code later will cause a failure due to missing .config.
626 if ! linux_config_exists; then 696 if ! linux_config_exists; then
627 ewarn "Unable to check for the following kernel config options due" 697 ewarn "Unable to check for the following kernel config options due"
628 ewarn "to absence of any configured kernel sources:" 698 ewarn "to absence of any configured kernel sources or compiled"
699 ewarn "config:"
629 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
630 ewarn " - ${config#\~}" 707 ewarn " - ${config#\~}${msg:+ - }${msg}"
631 done 708 done
632 ewarn "You're on your own to make sure they are set if needed." 709 ewarn "You're on your own to make sure they are set if needed."
710 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
633 return 0 711 return 0
634 fi 712 fi
635 else 713 else
636 require_configured_kernel 714 require_configured_kernel
637 fi 715 fi
714 if [[ ${hard_errors_count} > 0 ]]; then 792 if [[ ${hard_errors_count} > 0 ]]; then
715 eerror "Please check to make sure these options are set correctly." 793 eerror "Please check to make sure these options are set correctly."
716 eerror "Failure to do so may cause unexpected problems." 794 eerror "Failure to do so may cause unexpected problems."
717 eerror "Once you have satisfied these options, please try merging" 795 eerror "Once you have satisfied these options, please try merging"
718 eerror "this package again." 796 eerror "this package again."
797 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
719 die "Incorrect kernel configuration options" 798 die "Incorrect kernel configuration options"
720 elif [[ ${soft_errors_count} > 0 ]]; then 799 elif [[ ${soft_errors_count} > 0 ]]; then
721 ewarn "Please check to make sure these options are set correctly." 800 ewarn "Please check to make sure these options are set correctly."
722 ewarn "Failure to do so may cause unexpected problems." 801 ewarn "Failure to do so may cause unexpected problems."
723 else 802 else
724 eend 0 803 eend 0
725 fi 804 fi
805 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
726} 806}
727 807
728check_zlibinflate() { 808check_zlibinflate() {
729 # if we haven't determined the version yet, we need to 809 # if we haven't determined the version yet, we need to
730 require_configured_kernel 810 require_configured_kernel
801# @FUNCTION: linux-info_pkg_setup 881# @FUNCTION: linux-info_pkg_setup
802# @DESCRIPTION: 882# @DESCRIPTION:
803# 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
804# to support the options specified in CONFIG_CHECK (if not null) 884# to support the options specified in CONFIG_CHECK (if not null)
805linux-info_pkg_setup() { 885linux-info_pkg_setup() {
806 get_version 886 linux-info_get_any_version
807 if [[ $rc -ne 0 ]]; then
808 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
809 get_running_version
810 fi
811 887
812 if kernel_is 2 4; then 888 if kernel_is 2 4; then
813 if [ "$( gcc-major-version )" -eq "4" ] ; then 889 if [ "$( gcc-major-version )" -eq "4" ] ; then
814 echo 890 echo
815 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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