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Revision 1.62 Revision 1.90
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 1.62 2009/09/06 22:54:58 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.90 2011/08/22 04:46:32 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}
349 361
350# got the jist yet? 362# got the jist yet?
351 363
352kernel_is() { 364kernel_is() {
353 # if we haven't determined the version yet, we need to. 365 # if we haven't determined the version yet, we need to.
354 get_version 366 linux-info_get_any_version
367
355 local operator test value x=0 y=0 z=0 368 local operator testagainst value x=0 y=0 z=0
356 369
357 case ${1} in 370 case ${1} in
358 lt) operator="-lt"; shift;; 371 -lt|lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 372 -gt|gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 373 -le|le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 374 -ge|ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 375 -eq|eq) operator="-eq"; shift;;
363 *) operator="-eq";; 376 *) operator="-eq";;
364 esac 377 esac
365 378
366 for x in ${@}; do 379 for x in ${@}; do
367 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 380 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
368 value="${value}${x}" 381 value="${value}${x}"
369 z=$((${z} + 1)) 382 z=$((${z} + 1))
370 383
371 case ${z} in 384 case ${z} in
372 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 385 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
373 test="${test}${KV_MAJOR}";; 386 testagainst="${testagainst}${KV_MAJOR}";;
374 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done; 387 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do testagainst="${testagainst}0"; done;
375 test="${test}${KV_MINOR}";; 388 testagainst="${testagainst}${KV_MINOR}";;
376 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 389 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do testagainst="${testagainst}0"; done;
377 test="${test}${KV_PATCH}";; 390 testagainst="${testagainst}${KV_PATCH}";;
378 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 391 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
379 esac 392 esac
380 done 393 done
381 394
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 395 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
383} 396}
384 397
385get_localversion() { 398get_localversion() {
386 local lv_list i x 399 local lv_list i x
387 400
395 done 408 done
396 x=${x/ /} 409 x=${x/ /}
397 echo ${x} 410 echo ${x}
398} 411}
399 412
413# Check if the Makefile is valid for direct parsing.
414# Check status results:
415# - PASS, use 'getfilevar' to extract values
416# - FAIL, use 'getfilevar_noexec' to extract values
417# The check may fail if:
418# - make is not present
419# - corruption exists in the kernel makefile
420get_makefile_extract_function() {
421 local a='' b='' mkfunc='getfilevar'
422 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
423 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
424 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
425 echo "${mkfunc}"
426}
427
428# internal variable, so we know to only print the warning once
429get_version_warning_done=
430
400# @FUNCTION: get_version 431# @FUNCTION: get_version
401# @DESCRIPTION: 432# @DESCRIPTION:
402# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable 433# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
403# (if KV_FULL is already set it does nothing). 434# (if KV_FULL is already set it does nothing).
404# 435#
406# 437#
407# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 438# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
408# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the 439# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
409# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build). 440# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
410get_version() { 441get_version() {
411 local kbuild_output 442 local kbuild_output mkfunc tmplocal
412 443
413 # no need to execute this twice assuming KV_FULL is populated. 444 # no need to execute this twice assuming KV_FULL is populated.
414 # we can force by unsetting KV_FULL 445 # we can force by unsetting KV_FULL
415 [ -n "${KV_FULL}" ] && return 0 446 [ -n "${KV_FULL}" ] && return 0
416 447
417 # if we dont know KV_FULL, then we need too. 448 # if we dont know KV_FULL, then we need too.
418 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 449 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
419 unset KV_DIR 450 unset KV_DIR
420 451
421 # KV_DIR will contain the full path to the sources directory we should use 452 # KV_DIR will contain the full path to the sources directory we should use
453 [ -z "${get_version_warning_done}" ] && \
422 qeinfo "Determining the location of the kernel source code" 454 qeinfo "Determining the location of the kernel source code"
423 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 455 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
424 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 456 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
425 457
426 if [ -z "${KV_DIR}" ] 458 if [ -z "${KV_DIR}" ]
427 then 459 then
460 if [ -z "${get_version_warning_done}" ]; then
461 get_version_warning_done=1
428 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 462 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
429 qeinfo "This package requires Linux sources." 463 #qeinfo "This package requires Linux sources."
430 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 464 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
431 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 465 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
432 qeinfo "(or the kernel you wish to build against)." 466 qeinfo "(or the kernel you wish to build against)."
433 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 467 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
434 else 468 else
435 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 469 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
470 fi
436 fi 471 fi
437 return 1 472 return 1
438 fi 473 fi
439 474
475 if [ -z "${get_version_warning_done}" ]; then
440 qeinfo "Found kernel source directory:" 476 qeinfo "Found kernel source directory:"
441 qeinfo " ${KV_DIR}" 477 qeinfo " ${KV_DIR}"
478 fi
442 479
443 if [ ! -s "${KV_DIR}/Makefile" ] 480 if [ ! -s "${KV_DIR}/Makefile" ]
444 then 481 then
482 if [ -z "${get_version_warning_done}" ]; then
483 get_version_warning_done=1
445 qeerror "Could not find a Makefile in the kernel source directory." 484 qeerror "Could not find a Makefile in the kernel source directory."
446 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 485 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
486 fi
447 return 1 487 return 1
448 fi 488 fi
449 489
450 # OK so now we know our sources directory, but they might be using 490 # OK so now we know our sources directory, but they might be using
451 # KBUILD_OUTPUT, and we need this for .config and localversions-* 491 # KBUILD_OUTPUT, and we need this for .config and localversions-*
452 # so we better find it eh? 492 # so we better find it eh?
453 # do we pass KBUILD_OUTPUT on the CLI? 493 # do we pass KBUILD_OUTPUT on the CLI?
454 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 494 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
455 495
496 # keep track of it
497 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
498
499 # Decide the function used to extract makefile variables.
500 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
501
456 # And if we didn't pass it, we can take a nosey in the Makefile 502 # And if we didn't pass it, we can take a nosey in the Makefile
457 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 503 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
458 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 504 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
459 505
460 # And contrary to existing functions I feel we shouldn't trust the 506 # And contrary to existing functions I feel we shouldn't trust the
461 # directory name to find version information as this seems insane. 507 # directory name to find version information as this seems insane.
462 # so we parse ${KV_DIR}/Makefile 508 # so we parse ${KERNEL_MAKEFILE}
463 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 509 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
464 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 510 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
465 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 511 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
466 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 512 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
467 513
468 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 514 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
469 then 515 then
516 if [ -z "${get_version_warning_done}" ]; then
517 get_version_warning_done=1
470 qeerror "Could not detect kernel version." 518 qeerror "Could not detect kernel version."
471 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 519 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
520 fi
472 return 1 521 return 1
473 fi 522 fi
474 523
475 # and in newer versions we can also pull LOCALVERSION if it is set. 524 # and in newer versions we can also pull LOCALVERSION if it is set.
476 # but before we do this, we need to find if we use a different object directory. 525 # but before we do this, we need to find if we use a different object directory.
477 # This *WILL* break if the user is using localversions, but we assume it was 526 # This *WILL* break if the user is using localversions, but we assume it was
478 # caught before this if they are. 527 # caught before this if they are.
479 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
480 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 528 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
481 529
482 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 530 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
483 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 531 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
484 if [ -n "${KV_OUT_DIR}" ]; 532 if [ -n "${KV_OUT_DIR}" ];
485 then 533 then
486 qeinfo "Found kernel object directory:" 534 qeinfo "Found kernel object directory:"
487 qeinfo " ${KV_OUT_DIR}" 535 qeinfo " ${KV_OUT_DIR}"
488
489 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
490 fi 536 fi
491 # and if we STILL have not got it, then we better just set it to KV_DIR 537 # and if we STILL have not got it, then we better just set it to KV_DIR
492 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 538 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
493 539
494 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 540 # Grab the kernel release from the output directory.
495 if linux_config_exists; then 541 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
496 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 542 # this function.
497 KV_LOCAL="${KV_LOCAL//\"/}" 543 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
544 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
545 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
546 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
547 else
548 KV_LOCAL=
549 fi
498 550
499 # For things like git that can append extra stuff: 551 # KV_LOCAL currently contains the full release; discard the first bits.
500 [ -e ${KV_DIR}/scripts/setlocalversion ] && 552 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
501 linux_chkconfig_builtin LOCALVERSION_AUTO && 553
502 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 554 # If the updated local version was not changed, the tree is not prepared.
555 # Clear out KV_LOCAL in that case.
556 # TODO: this does not detect a change in the localversion part between
557 # kernel.release and the value that would be generated.
558 if [ "$KV_LOCAL" = "$tmplocal" ]; then
559 KV_LOCAL=
560 else
561 KV_LOCAL=$tmplocal
503 fi 562 fi
504 563
505 # And we should set KV_FULL to the full expanded version 564 # And we should set KV_FULL to the full expanded version
506 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 565 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
507 566
516# It gets the version of the current running kernel and the result is the same as get_version() if the 575# It gets the version of the current running kernel and the result is the same as get_version() if the
517# function can find the sources. 576# function can find the sources.
518get_running_version() { 577get_running_version() {
519 KV_FULL=$(uname -r) 578 KV_FULL=$(uname -r)
520 579
580 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
581 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
582 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
583 unset KV_FULL
584 get_version
585 return $?
521 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 586 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
522 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 587 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
523 unset KV_FULL 588 unset KV_FULL
524 get_version 589 get_version
525 return $? 590 return $?
526 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 591 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
529 get_version 594 get_version
530 return $? 595 return $?
531 else 596 else
532 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 597 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
533 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 598 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
534 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 599 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
535 KV_PATCH=${KV_PATCH//-*} 600 KV_PATCH=${KV_PATCH//-*}
536 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 601 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
537 && KV_EXTRA="-${KV_FULL#*-}"
538 fi 602 fi
539 return 0 603 return 0
604}
605
606# This next function is named with the eclass prefix to avoid conflicts with
607# some old versionator-like eclass functions.
608
609# @FUNCTION: linux-info_get_any_version
610# @DESCRIPTION:
611# This attempts to find the version of the sources, and otherwise falls back to
612# the version of the running kernel.
613linux-info_get_any_version() {
614 get_version
615 if [[ $? -ne 0 ]]; then
616 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
617 get_running_version
618 fi
540} 619}
541 620
542 621
543# ebuild check functions 622# ebuild check functions
544# --------------------------------------- 623# ---------------------------------------
588# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 667# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
589# the prefix ~ is not used) doesn't satisfy the directive. 668# the prefix ~ is not used) doesn't satisfy the directive.
590check_extra_config() { 669check_extra_config() {
591 local config negate die error reworkmodulenames 670 local config negate die error reworkmodulenames
592 local soft_errors_count=0 hard_errors_count=0 config_required=0 671 local soft_errors_count=0 hard_errors_count=0 config_required=0
672 # store the value of the QA check, because otherwise we won't catch usages
673 # after if check_extra_config is called AND other direct calls are done
674 # later.
675 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
593 676
594 # if we haven't determined the version yet, we need to 677 # if we haven't determined the version yet, we need to
595 get_version 678 linux-info_get_any_version
596 679
597 # Determine if we really need a .config. The only time when we don't need 680 # Determine if we really need a .config. The only time when we don't need
598 # one is when all of the CONFIG_CHECK options are prefixed with "~". 681 # one is when all of the CONFIG_CHECK options are prefixed with "~".
599 for config in ${CONFIG_CHECK} 682 for config in ${CONFIG_CHECK}
600 do 683 do
608 # In the case where we don't require a .config, we can now bail out 691 # In the case where we don't require a .config, we can now bail out
609 # if the user has no .config as there is nothing to do. Otherwise 692 # if the user has no .config as there is nothing to do. Otherwise
610 # code later will cause a failure due to missing .config. 693 # code later will cause a failure due to missing .config.
611 if ! linux_config_exists; then 694 if ! linux_config_exists; then
612 ewarn "Unable to check for the following kernel config options due" 695 ewarn "Unable to check for the following kernel config options due"
613 ewarn "to absence of any configured kernel sources:" 696 ewarn "to absence of any configured kernel sources or compiled"
697 ewarn "config:"
614 for config in ${CONFIG_CHECK}; do 698 for config in ${CONFIG_CHECK}; do
699 local_error="ERROR_${config#\~}"
700 msg="${!local_error}"
701 if [[ "x${msg}" == "x" ]]; then
702 local_error="WARNING_${config#\~}"
703 msg="${!local_error}"
704 fi
615 ewarn " - ${config#\~}" 705 ewarn " - ${config#\~}${msg:+ - }${msg}"
616 done 706 done
617 ewarn "You're on your own to make sure they are set if needed." 707 ewarn "You're on your own to make sure they are set if needed."
708 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
618 return 0 709 return 0
619 fi 710 fi
620 else 711 else
621 require_configured_kernel 712 require_configured_kernel
622 fi 713 fi
699 if [[ ${hard_errors_count} > 0 ]]; then 790 if [[ ${hard_errors_count} > 0 ]]; then
700 eerror "Please check to make sure these options are set correctly." 791 eerror "Please check to make sure these options are set correctly."
701 eerror "Failure to do so may cause unexpected problems." 792 eerror "Failure to do so may cause unexpected problems."
702 eerror "Once you have satisfied these options, please try merging" 793 eerror "Once you have satisfied these options, please try merging"
703 eerror "this package again." 794 eerror "this package again."
795 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
704 die "Incorrect kernel configuration options" 796 die "Incorrect kernel configuration options"
705 elif [[ ${soft_errors_count} > 0 ]]; then 797 elif [[ ${soft_errors_count} > 0 ]]; then
706 ewarn "Please check to make sure these options are set correctly." 798 ewarn "Please check to make sure these options are set correctly."
707 ewarn "Failure to do so may cause unexpected problems." 799 ewarn "Failure to do so may cause unexpected problems."
708 else 800 else
709 eend 0 801 eend 0
710 fi 802 fi
803 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
711} 804}
712 805
713check_zlibinflate() { 806check_zlibinflate() {
714 # if we haven't determined the version yet, we need to 807 # if we haven't determined the version yet, we need to
715 require_configured_kernel 808 require_configured_kernel
786# @FUNCTION: linux-info_pkg_setup 879# @FUNCTION: linux-info_pkg_setup
787# @DESCRIPTION: 880# @DESCRIPTION:
788# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 881# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
789# to support the options specified in CONFIG_CHECK (if not null) 882# to support the options specified in CONFIG_CHECK (if not null)
790linux-info_pkg_setup() { 883linux-info_pkg_setup() {
791 get_version 884 linux-info_get_any_version
792 if [[ $rc -ne 0 ]]; then
793 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
794 get_running_version
795 fi
796 885
797 if kernel_is 2 4; then 886 if kernel_is 2 4; then
798 if [ "$( gcc-major-version )" -eq "4" ] ; then 887 if [ "$( gcc-major-version )" -eq "4" ] ; then
799 echo 888 echo
800 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 889 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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