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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 1.71 2009/09/08 12:34:21 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.94 2013/01/14 21:19:39 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
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="" 114DEPEND=""
114RDEPEND="" 115RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
117DEPEND="kernel_linux? ( virtual/linux-sources )"
118 116
119# Overwritable environment Var's 117# Overwritable environment Var's
120# --------------------------------------- 118# ---------------------------------------
121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
122 120
153 esac 151 esac
154 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
155} 153}
156 154
157qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
158qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
159 158
160# File Functions 159# File Functions
161# --------------------------------------- 160# ---------------------------------------
162 161
166# @DESCRIPTION: 165# @DESCRIPTION:
167# It detects the value of the variable defined in the file configfile. This is 166# It detects the value of the variable defined in the file configfile. This is
168# done by including the configfile, and printing the variable with Make. 167# done by including the configfile, and printing the variable with Make.
169# It WILL break if your makefile has missing dependencies! 168# It WILL break if your makefile has missing dependencies!
170getfilevar() { 169getfilevar() {
171local ERROR basefname basedname myARCH="${ARCH}" 170 local ERROR basefname basedname myARCH="${ARCH}"
172 ERROR=0 171 ERROR=0
173 172
174 [ -z "${1}" ] && ERROR=1 173 [ -z "${1}" ] && ERROR=1
175 [ ! -f "${2}" ] && ERROR=1 174 [ ! -f "${2}" ] && ERROR=1
176 175
197# @DESCRIPTION: 196# @DESCRIPTION:
198# It detects the value of the variable defined in the file configfile. 197# It detects the value of the variable defined in the file configfile.
199# This is done with sed matching an expression only. If the variable is defined, 198# This is done with sed matching an expression only. If the variable is defined,
200# you will run into problems. See getfilevar for those cases. 199# you will run into problems. See getfilevar for those cases.
201getfilevar_noexec() { 200getfilevar_noexec() {
202 local ERROR basefname basedname mycat myARCH="${ARCH}" 201 local ERROR basefname basedname mycat myARCH="${ARCH}"
203 ERROR=0 202 ERROR=0
204 mycat='cat' 203 mycat='cat'
205 204
206 [ -z "${1}" ] && ERROR=1 205 [ -z "${1}" ] && ERROR=1
207 [ ! -f "${2}" ] && ERROR=1 206 [ ! -f "${2}" ] && ERROR=1
213 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."
214 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 213 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
215 else 214 else
216 ${mycat} "${2}" | \ 215 ${mycat} "${2}" | \
217 sed -n \ 216 sed -n \
218 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 217 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
219 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 218 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
220 s,[[:space:]]*\$,,g ; 219 s,[[:space:]]*\$,,g ;
221 p 220 p
222 }" 221 }"
223 fi 222 fi
224} 223}
225 224
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 $f will NOT guaranteed later!"
239 fi
240}
226 241
227# @FUNCTION: linux_config_src_exists 242# @FUNCTION: linux_config_src_exists
228# @RETURN: true or false 243# @RETURN: true or false
229# @DESCRIPTION: 244# @DESCRIPTION:
230# It returns true if .config exists in a build directory otherwise false 245# It returns true if .config exists in a build directory otherwise false
231linux_config_src_exists() { 246linux_config_src_exists() {
247 export _LINUX_CONFIG_EXISTS_DONE=1
232 [ -s "${KV_OUT_DIR}/.config" ] 248 [ -s "${KV_OUT_DIR}/.config" ]
233} 249}
234 250
235# @FUNCTION: linux_config_bin_exists 251# @FUNCTION: linux_config_bin_exists
236# @RETURN: true or false 252# @RETURN: true or false
237# @DESCRIPTION: 253# @DESCRIPTION:
238# It returns true if .config exists in /proc, otherwise false 254# It returns true if .config exists in /proc, otherwise false
239linux_config_bin_exists() { 255linux_config_bin_exists() {
256 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "/proc/config.gz" ] 257 [ -s "/proc/config.gz" ]
241} 258}
242 259
243# @FUNCTION: linux_config_exists 260# @FUNCTION: linux_config_exists
244# @RETURN: true or false 261# @RETURN: true or false
271# @DESCRIPTION: 288# @DESCRIPTION:
272# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 289# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
273# If linux_config_exists returns false, the results of this are UNDEFINED. You 290# If linux_config_exists returns false, the results of this are UNDEFINED. You
274# MUST call linux_config_exists first. 291# MUST call linux_config_exists first.
275linux_chkconfig_present() { 292linux_chkconfig_present() {
276local RESULT 293 linux_config_qa_check linux_chkconfig_present
277 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
278 local config 294 local RESULT config
279 config="${KV_OUT_DIR}/.config" 295 config="${KV_OUT_DIR}/.config"
280 [ ! -f "${config}" ] && config="/proc/config.gz" 296 [ ! -f "${config}" ] && config="/proc/config.gz"
281 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 297 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
282 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 298 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
283} 299}
288# @DESCRIPTION: 304# @DESCRIPTION:
289# It checks that CONFIG_<option>=m is present in the current kernel .config 305# 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 306# If linux_config_exists returns false, the results of this are UNDEFINED. You
291# MUST call linux_config_exists first. 307# MUST call linux_config_exists first.
292linux_chkconfig_module() { 308linux_chkconfig_module() {
293local RESULT 309 linux_config_qa_check linux_chkconfig_module
294 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
295 local config 310 local RESULT config
296 config="${KV_OUT_DIR}/.config" 311 config="${KV_OUT_DIR}/.config"
297 [ ! -f "${config}" ] && config="/proc/config.gz" 312 [ ! -f "${config}" ] && config="/proc/config.gz"
298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 313 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
299 [ "${RESULT}" = "m" ] && return 0 || return 1 314 [ "${RESULT}" = "m" ] && return 0 || return 1
300} 315}
305# @DESCRIPTION: 320# @DESCRIPTION:
306# It checks that CONFIG_<option>=y is present in the current kernel .config 321# It checks that CONFIG_<option>=y is present in the current kernel .config
307# If linux_config_exists returns false, the results of this are UNDEFINED. You 322# If linux_config_exists returns false, the results of this are UNDEFINED. You
308# MUST call linux_config_exists first. 323# MUST call linux_config_exists first.
309linux_chkconfig_builtin() { 324linux_chkconfig_builtin() {
310local RESULT 325 linux_config_qa_check linux_chkconfig_builtin
311 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
312 local config 326 localRESULT config
313 config="${KV_OUT_DIR}/.config" 327 config="${KV_OUT_DIR}/.config"
314 [ ! -f "${config}" ] && config="/proc/config.gz" 328 [ ! -f "${config}" ] && config="/proc/config.gz"
315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 329 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
316 [ "${RESULT}" = "y" ] && return 0 || return 1 330 [ "${RESULT}" = "y" ] && return 0 || return 1
317} 331}
322# @DESCRIPTION: 336# @DESCRIPTION:
323# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 337# 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 338# If linux_config_exists returns false, the results of this are UNDEFINED. You
325# MUST call linux_config_exists first. 339# MUST call linux_config_exists first.
326linux_chkconfig_string() { 340linux_chkconfig_string() {
327 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 341 linux_config_qa_check linux_chkconfig_string
328 local config 342 local config
329 config="${KV_OUT_DIR}/.config" 343 config="${KV_OUT_DIR}/.config"
330 [ ! -f "${config}" ] && config="/proc/config.gz" 344 [ ! -f "${config}" ] && config="/proc/config.gz"
331 getfilevar_noexec "CONFIG_${1}" "${config}" 345 getfilevar_noexec "CONFIG_${1}" "${config}"
332} 346}
348# kernel_is 2 6 returns true 362# kernel_is 2 6 returns true
349# kernel_is 2 6 8 returns false 363# kernel_is 2 6 8 returns false
350# kernel_is 2 6 9 returns true 364# kernel_is 2 6 9 returns true
351# @CODE 365# @CODE
352 366
353# got the jist yet? 367# Note: duplicated in kernel-2.eclass
354
355kernel_is() { 368kernel_is() {
356 # if we haven't determined the version yet, we need to. 369 # if we haven't determined the version yet, we need to.
357 linux-info_get_any_version 370 linux-info_get_any_version
358 371
372 # Now we can continue
359 local operator test value x=0 y=0 z=0 373 local operator test value
360 374
361 case ${1} in 375 case ${1#-} in
362 -lt|lt) operator="-lt"; shift;; 376 lt) operator="-lt"; shift;;
363 -gt|gt) operator="-gt"; shift;; 377 gt) operator="-gt"; shift;;
364 -le|le) operator="-le"; shift;; 378 le) operator="-le"; shift;;
365 -ge|ge) operator="-ge"; shift;; 379 ge) operator="-ge"; shift;;
366 -eq|eq) operator="-eq"; shift;; 380 eq) operator="-eq"; shift;;
367 *) operator="-eq";; 381 *) operator="-eq";;
368 esac 382 esac
369
370 for x in ${@}; do
371 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
372 value="${value}${x}"
373 z=$((${z} + 1))
374
375 case ${z} in
376 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
377 test="${test}${KV_MAJOR}";;
378 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
379 test="${test}${KV_MINOR}";;
380 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
381 test="${test}${KV_PATCH}";;
382 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 383 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
383 esac 384
384 done 385 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
385 386 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
386 [ ${test} ${operator} ${value} ] && return 0 || return 1 387 [ ${test} ${operator} ${value} ]
387} 388}
388 389
389get_localversion() { 390get_localversion() {
390 local lv_list i x 391 local lv_list i x
391 392
399 done 400 done
400 x=${x/ /} 401 x=${x/ /}
401 echo ${x} 402 echo ${x}
402} 403}
403 404
405# Check if the Makefile is valid for direct parsing.
406# Check status results:
407# - PASS, use 'getfilevar' to extract values
408# - FAIL, use 'getfilevar_noexec' to extract values
409# The check may fail if:
410# - make is not present
411# - corruption exists in the kernel makefile
412get_makefile_extract_function() {
413 local a='' b='' mkfunc='getfilevar'
414 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
415 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
416 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
417 echo "${mkfunc}"
418}
419
404# internal variable, so we know to only print the warning once 420# internal variable, so we know to only print the warning once
405get_version_warning_done= 421get_version_warning_done=
406 422
407# @FUNCTION: get_version 423# @FUNCTION: get_version
408# @DESCRIPTION: 424# @DESCRIPTION:
413# 429#
414# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 430# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
415# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the 431# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
416# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build). 432# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
417get_version() { 433get_version() {
418 local kbuild_output 434 local kbuild_output mkfunc tmplocal
419 435
420 # no need to execute this twice assuming KV_FULL is populated. 436 # no need to execute this twice assuming KV_FULL is populated.
421 # we can force by unsetting KV_FULL 437 # we can force by unsetting KV_FULL
422 [ -n "${KV_FULL}" ] && return 0 438 [ -n "${KV_FULL}" ] && return 0
423 439
467 # KBUILD_OUTPUT, and we need this for .config and localversions-* 483 # KBUILD_OUTPUT, and we need this for .config and localversions-*
468 # so we better find it eh? 484 # so we better find it eh?
469 # do we pass KBUILD_OUTPUT on the CLI? 485 # do we pass KBUILD_OUTPUT on the CLI?
470 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 486 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
471 487
488 # keep track of it
489 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
490
491 # Decide the function used to extract makefile variables.
492 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
493
472 # And if we didn't pass it, we can take a nosey in the Makefile 494 # And if we didn't pass it, we can take a nosey in the Makefile
473 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 495 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
474 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
475 497
476 # And contrary to existing functions I feel we shouldn't trust the 498 # And contrary to existing functions I feel we shouldn't trust the
477 # directory name to find version information as this seems insane. 499 # directory name to find version information as this seems insane.
478 # so we parse ${KV_DIR}/Makefile 500 # so we parse ${KERNEL_MAKEFILE}
479 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 501 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
480 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 502 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
481 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 503 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
482 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 504 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
483 505
484 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 506 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
485 then 507 then
486 if [ -z "${get_version_warning_done}" ]; then 508 if [ -z "${get_version_warning_done}" ]; then
487 get_version_warning_done=1 509 get_version_warning_done=1
493 515
494 # and in newer versions we can also pull LOCALVERSION if it is set. 516 # and in newer versions we can also pull LOCALVERSION if it is set.
495 # but before we do this, we need to find if we use a different object directory. 517 # but before we do this, we need to find if we use a different object directory.
496 # This *WILL* break if the user is using localversions, but we assume it was 518 # This *WILL* break if the user is using localversions, but we assume it was
497 # caught before this if they are. 519 # caught before this if they are.
498 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
499 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 520 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
500 521
501 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 522 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
502 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 523 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
503 if [ -n "${KV_OUT_DIR}" ]; 524 if [ -n "${KV_OUT_DIR}" ];
504 then 525 then
505 qeinfo "Found kernel object directory:" 526 qeinfo "Found kernel object directory:"
506 qeinfo " ${KV_OUT_DIR}" 527 qeinfo " ${KV_OUT_DIR}"
507
508 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
509 fi 528 fi
510 # and if we STILL have not got it, then we better just set it to KV_DIR 529 # and if we STILL have not got it, then we better just set it to KV_DIR
511 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 530 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
512 531
513 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 532 # Grab the kernel release from the output directory.
514 if linux_config_src_exists; then 533 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
515 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 534 # this function.
516 KV_LOCAL="${KV_LOCAL//\"/}" 535 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
536 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
537 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
538 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
539 else
540 KV_LOCAL=
541 fi
517 542
518 # For things like git that can append extra stuff: 543 # KV_LOCAL currently contains the full release; discard the first bits.
519 [ -e ${KV_DIR}/scripts/setlocalversion ] && 544 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
520 linux_chkconfig_builtin LOCALVERSION_AUTO && 545
521 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 546 # If the updated local version was not changed, the tree is not prepared.
547 # Clear out KV_LOCAL in that case.
548 # TODO: this does not detect a change in the localversion part between
549 # kernel.release and the value that would be generated.
550 if [ "$KV_LOCAL" = "$tmplocal" ]; then
551 KV_LOCAL=
552 else
553 KV_LOCAL=$tmplocal
522 fi 554 fi
523 555
524 # And we should set KV_FULL to the full expanded version 556 # And we should set KV_FULL to the full expanded version
525 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 557 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
526 558
535# It gets the version of the current running kernel and the result is the same as get_version() if the 567# It gets the version of the current running kernel and the result is the same as get_version() if the
536# function can find the sources. 568# function can find the sources.
537get_running_version() { 569get_running_version() {
538 KV_FULL=$(uname -r) 570 KV_FULL=$(uname -r)
539 571
572 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
573 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
574 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
575 unset KV_FULL
576 get_version
577 return $?
540 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
541 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 579 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
542 unset KV_FULL 580 unset KV_FULL
543 get_version 581 get_version
544 return $? 582 return $?
545 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 583 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
548 get_version 586 get_version
549 return $? 587 return $?
550 else 588 else
551 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 589 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
552 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 590 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
553 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 591 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
554 KV_PATCH=${KV_PATCH//-*} 592 KV_PATCH=${KV_PATCH//-*}
555 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 593 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
556 && KV_EXTRA="-${KV_FULL#*-}"
557 fi 594 fi
558 return 0 595 return 0
559} 596}
560 597
561# This next function is named with the eclass prefix to avoid conflicts with 598# This next function is named with the eclass prefix to avoid conflicts with
564# @FUNCTION: linux-info_get_any_version 601# @FUNCTION: linux-info_get_any_version
565# @DESCRIPTION: 602# @DESCRIPTION:
566# This attempts to find the version of the sources, and otherwise falls back to 603# This attempts to find the version of the sources, and otherwise falls back to
567# the version of the running kernel. 604# the version of the running kernel.
568linux-info_get_any_version() { 605linux-info_get_any_version() {
569 get_version 606 get_version
570 if [[ $? -ne 0 ]]; then 607 if [[ $? -ne 0 ]]; then
571 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version" 608 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
572 get_running_version 609 get_running_version
573 fi 610 fi
574} 611}
575 612
576 613
577# ebuild check functions 614# ebuild check functions
583check_kernel_built() { 620check_kernel_built() {
584 # if we haven't determined the version yet, we need to 621 # if we haven't determined the version yet, we need to
585 require_configured_kernel 622 require_configured_kernel
586 get_version 623 get_version
587 624
625 local versionh_path
626 if kernel_is -ge 3 7; then
627 versionh_path="include/generated/uapi/linux/version.h"
628 else
629 versionh_path="include/linux/version.h"
630 fi
631
588 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 632 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
589 then 633 then
590 eerror "These sources have not yet been prepared." 634 eerror "These sources have not yet been prepared."
591 eerror "We cannot build against an unprepared tree." 635 eerror "We cannot build against an unprepared tree."
592 eerror "To resolve this, please type the following:" 636 eerror "To resolve this, please type the following:"
593 eerror 637 eerror
606check_modules_supported() { 650check_modules_supported() {
607 # if we haven't determined the version yet, we need too. 651 # if we haven't determined the version yet, we need too.
608 require_configured_kernel 652 require_configured_kernel
609 get_version 653 get_version
610 654
611 if ! linux_chkconfig_builtin "MODULES" 655 if ! linux_chkconfig_builtin "MODULES"; then
612 then
613 eerror "These sources do not support loading external modules." 656 eerror "These sources do not support loading external modules."
614 eerror "to be able to use this module please enable \"Loadable modules support\"" 657 eerror "to be able to use this module please enable \"Loadable modules support\""
615 eerror "in your kernel, recompile and then try merging this module again." 658 eerror "in your kernel, recompile and then try merging this module again."
616 die "No support for external modules in ${KV_FULL} config" 659 die "No support for external modules in ${KV_FULL} config"
617 fi 660 fi
620# @FUNCTION: check_extra_config 663# @FUNCTION: check_extra_config
621# @DESCRIPTION: 664# @DESCRIPTION:
622# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 665# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
623# the prefix ~ is not used) doesn't satisfy the directive. 666# the prefix ~ is not used) doesn't satisfy the directive.
624check_extra_config() { 667check_extra_config() {
625 local config negate die error reworkmodulenames 668 local config negate die error reworkmodulenames
626 local soft_errors_count=0 hard_errors_count=0 config_required=0 669 local soft_errors_count=0 hard_errors_count=0 config_required=0
670 # store the value of the QA check, because otherwise we won't catch usages
671 # after if check_extra_config is called AND other direct calls are done
672 # later.
673 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
627 674
628 # if we haven't determined the version yet, we need to 675 # if we haven't determined the version yet, we need to
629 linux-info_get_any_version 676 linux-info_get_any_version
630 677
631 # Determine if we really need a .config. The only time when we don't need 678 # Determine if we really need a .config. The only time when we don't need
632 # one is when all of the CONFIG_CHECK options are prefixed with "~". 679 # one is when all of the CONFIG_CHECK options are prefixed with "~".
633 for config in ${CONFIG_CHECK} 680 for config in ${CONFIG_CHECK}; do
634 do
635 if [[ "${config:0:1}" != "~" ]]; then 681 if [[ "${config:0:1}" != "~" ]]; then
636 config_required=1 682 config_required=1
637 break 683 break
638 fi 684 fi
639 done 685 done
645 if ! linux_config_exists; then 691 if ! linux_config_exists; then
646 ewarn "Unable to check for the following kernel config options due" 692 ewarn "Unable to check for the following kernel config options due"
647 ewarn "to absence of any configured kernel sources or compiled" 693 ewarn "to absence of any configured kernel sources or compiled"
648 ewarn "config:" 694 ewarn "config:"
649 for config in ${CONFIG_CHECK}; do 695 for config in ${CONFIG_CHECK}; do
696 local_error="ERROR_${config#\~}"
697 msg="${!local_error}"
698 if [[ "x${msg}" == "x" ]]; then
699 local_error="WARNING_${config#\~}"
700 msg="${!local_error}"
701 fi
650 ewarn " - ${config#\~}" 702 ewarn " - ${config#\~}${msg:+ - }${msg}"
651 done 703 done
652 ewarn "You're on your own to make sure they are set if needed." 704 ewarn "You're on your own to make sure they are set if needed."
705 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
653 return 0 706 return 0
654 fi 707 fi
655 else 708 else
656 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 709 require_configured_kernel
657 fi 710 fi
658 711
659 einfo "Checking for suitable kernel configuration options..." 712 einfo "Checking for suitable kernel configuration options..."
660 713
661 for config in ${CONFIG_CHECK} 714 for config in ${CONFIG_CHECK}
734 if [[ ${hard_errors_count} > 0 ]]; then 787 if [[ ${hard_errors_count} > 0 ]]; then
735 eerror "Please check to make sure these options are set correctly." 788 eerror "Please check to make sure these options are set correctly."
736 eerror "Failure to do so may cause unexpected problems." 789 eerror "Failure to do so may cause unexpected problems."
737 eerror "Once you have satisfied these options, please try merging" 790 eerror "Once you have satisfied these options, please try merging"
738 eerror "this package again." 791 eerror "this package again."
792 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
739 die "Incorrect kernel configuration options" 793 die "Incorrect kernel configuration options"
740 elif [[ ${soft_errors_count} > 0 ]]; then 794 elif [[ ${soft_errors_count} > 0 ]]; then
741 ewarn "Please check to make sure these options are set correctly." 795 ewarn "Please check to make sure these options are set correctly."
742 ewarn "Failure to do so may cause unexpected problems." 796 ewarn "Failure to do so may cause unexpected problems."
743 else 797 else
744 eend 0 798 eend 0
745 fi 799 fi
800 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
746} 801}
747 802
748check_zlibinflate() { 803check_zlibinflate() {
749 # if we haven't determined the version yet, we need to 804 # if we haven't determined the version yet, we need to
750 require_configured_kernel 805 require_configured_kernel

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