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Revision 1.62 Revision 1.91
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2011 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.62 2009/09/06 22:54:58 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.91 2011/12/12 22:01:37 vapier Exp $
4#
5# Original author: John Mylchreest <johnm@gentoo.org>
6# Maintainer: kernel-misc@gentoo.org
7#
8# Please direct your bugs to the current eclass maintainer :)
9 4
10# @ECLASS: linux-info.eclass 5# @ECLASS: linux-info.eclass
11# @MAINTAINER: 6# @MAINTAINER:
12# kernel-misc@gentoo.org 7# kernel-misc@gentoo.org
8# @AUTHOR:
9# Original author: John Mylchreest <johnm@gentoo.org>
13# @BLURB: eclass used for accessing kernel related information 10# @BLURB: eclass used for accessing kernel related information
14# @DESCRIPTION: 11# @DESCRIPTION:
15# This eclass is used as a central eclass for accessing kernel 12# This eclass is used as a central eclass for accessing kernel
16# related information for source or binary already installed. 13# related information for source or binary already installed.
17# It is vital for linux-mod.eclass to function correctly, and is split 14# It is vital for linux-mod.eclass to function correctly, and is split
40# You can also check that an option doesn't exist by 37# You can also check that an option doesn't exist by
41# prepending it with an exclamation mark (!). 38# prepending it with an exclamation mark (!).
42# 39#
43# e.g.: CONFIG_CHECK="!MTRR" 40# e.g.: CONFIG_CHECK="!MTRR"
44# 41#
45# To simply warn about a missing option, prepend a '~'. 42# To simply warn about a missing option, prepend a '~'.
46# It may be combined with '!'. 43# It may be combined with '!'.
47# 44#
48# In general, most checks should be non-fatal. The only time fatal checks should 45# In general, most checks should be non-fatal. The only time fatal checks should
49# be used is for building kernel modules or cases that a compile will fail 46# be used is for building kernel modules or cases that a compile will fail
50# without the option. 47# without the option.
99# @ECLASS-VARIABLE: KV_OUT_DIR 96# @ECLASS-VARIABLE: KV_OUT_DIR
100# @DESCRIPTION: 97# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless 98# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
102# KBUILD_OUTPUT is used. This should be used for referencing .config. 99# KBUILD_OUTPUT is used. This should be used for referencing .config.
103 100
104# @ECLASS-VARIABLE: I_KNOW_WHAT_I_AM_DOING
105# @DESCRIPTION:
106# Temporary variable for the migration to making linux-info non-fatal.
107
108# And to ensure all the weirdness with crosscompile 101# And to ensure all the weirdness with crosscompile
109inherit toolchain-funcs versionator 102inherit toolchain-funcs versionator
110 103
111EXPORT_FUNCTIONS pkg_setup 104EXPORT_FUNCTIONS pkg_setup
112 105
113DEPEND="kernel_linux? ( virtual/linux-sources )" 106DEPEND=""
114RDEPEND="" 107RDEPEND=""
115 108
116# Overwritable environment Var's 109# Overwritable environment Var's
117# --------------------------------------- 110# ---------------------------------------
118KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 111KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
150 esac 143 esac
151 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 144 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
152} 145}
153 146
154qeinfo() { qout einfo "${@}" ; } 147qeinfo() { qout einfo "${@}" ; }
148qewarn() { qout ewarn "${@}" ; }
155qeerror() { qout eerror "${@}" ; } 149qeerror() { qout eerror "${@}" ; }
156 150
157# File Functions 151# File Functions
158# --------------------------------------- 152# ---------------------------------------
159 153
200 ERROR=0 194 ERROR=0
201 mycat='cat' 195 mycat='cat'
202 196
203 [ -z "${1}" ] && ERROR=1 197 [ -z "${1}" ] && ERROR=1
204 [ ! -f "${2}" ] && ERROR=1 198 [ ! -f "${2}" ] && ERROR=1
205 [ "${2#.gz}" != "${2}" ] && mycat='zcat' 199 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
206 200
207 if [ "${ERROR}" = 1 ] 201 if [ "${ERROR}" = 1 ]
208 then 202 then
209 echo -e "\n" 203 echo -e "\n"
210 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 204 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
211 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 205 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
212 else 206 else
213 ${mycat} "${2}" | \ 207 ${mycat} "${2}" | \
214 sed -n \ 208 sed -n \
215 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 209 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
216 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 210 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
217 s,[[:space:]]*\$,,g ; 211 s,[[:space:]]*\$,,g ;
218 p 212 p
219 }" 213 }"
220 fi 214 fi
221} 215}
222 216
217# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
218# @INTERNAL
219# @DESCRIPTION:
220# This is only set if one of the linux_config_*exists functions has been called.
221# We use it for a QA warning that the check for a config has not been performed,
222# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
223# config is available at all.
224_LINUX_CONFIG_EXISTS_DONE=
225
226linux_config_qa_check() {
227 local f="$1"
228 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
229 ewarn "QA: You called $f before any linux_config_exists!"
230 ewarn "QA: The return value of $f will NOT guaranteed later!"
231 fi
232}
223 233
224# @FUNCTION: linux_config_src_exists 234# @FUNCTION: linux_config_src_exists
225# @RETURN: true or false 235# @RETURN: true or false
226# @DESCRIPTION: 236# @DESCRIPTION:
227# It returns true if .config exists in a build directory otherwise false 237# It returns true if .config exists in a build directory otherwise false
228linux_config_src_exists() { 238linux_config_src_exists() {
239 export _LINUX_CONFIG_EXISTS_DONE=1
229 [ -s "${KV_OUT_DIR}/.config" ] 240 [ -s "${KV_OUT_DIR}/.config" ]
230} 241}
231 242
232# @FUNCTION: linux_config_bin_exists 243# @FUNCTION: linux_config_bin_exists
233# @RETURN: true or false 244# @RETURN: true or false
234# @DESCRIPTION: 245# @DESCRIPTION:
235# It returns true if .config exists in /proc, otherwise false 246# It returns true if .config exists in /proc, otherwise false
236linux_config_bin_exists() { 247linux_config_bin_exists() {
248 export _LINUX_CONFIG_EXISTS_DONE=1
237 [ -s "/proc/config.gz" ] 249 [ -s "/proc/config.gz" ]
238} 250}
239 251
240# @FUNCTION: linux_config_exists 252# @FUNCTION: linux_config_exists
241# @RETURN: true or false 253# @RETURN: true or false
268# @DESCRIPTION: 280# @DESCRIPTION:
269# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 281# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
270# If linux_config_exists returns false, the results of this are UNDEFINED. You 282# If linux_config_exists returns false, the results of this are UNDEFINED. You
271# MUST call linux_config_exists first. 283# MUST call linux_config_exists first.
272linux_chkconfig_present() { 284linux_chkconfig_present() {
285 linux_config_qa_check linux_chkconfig_present
273local RESULT 286 local RESULT
274 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
275 local config 287 local config
276 config="${KV_OUT_DIR}/.config" 288 config="${KV_OUT_DIR}/.config"
277 [ ! -f "${config}" ] && config="/proc/config.gz" 289 [ ! -f "${config}" ] && config="/proc/config.gz"
278 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 290 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
279 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 291 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
285# @DESCRIPTION: 297# @DESCRIPTION:
286# It checks that CONFIG_<option>=m is present in the current kernel .config 298# It checks that CONFIG_<option>=m is present in the current kernel .config
287# If linux_config_exists returns false, the results of this are UNDEFINED. You 299# If linux_config_exists returns false, the results of this are UNDEFINED. You
288# MUST call linux_config_exists first. 300# MUST call linux_config_exists first.
289linux_chkconfig_module() { 301linux_chkconfig_module() {
302 linux_config_qa_check linux_chkconfig_module
290local RESULT 303 local RESULT
291 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
292 local config 304 local config
293 config="${KV_OUT_DIR}/.config" 305 config="${KV_OUT_DIR}/.config"
294 [ ! -f "${config}" ] && config="/proc/config.gz" 306 [ ! -f "${config}" ] && config="/proc/config.gz"
295 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 307 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
296 [ "${RESULT}" = "m" ] && return 0 || return 1 308 [ "${RESULT}" = "m" ] && return 0 || return 1
302# @DESCRIPTION: 314# @DESCRIPTION:
303# It checks that CONFIG_<option>=y is present in the current kernel .config 315# It checks that CONFIG_<option>=y is present in the current kernel .config
304# If linux_config_exists returns false, the results of this are UNDEFINED. You 316# If linux_config_exists returns false, the results of this are UNDEFINED. You
305# MUST call linux_config_exists first. 317# MUST call linux_config_exists first.
306linux_chkconfig_builtin() { 318linux_chkconfig_builtin() {
319 linux_config_qa_check linux_chkconfig_builtin
307local RESULT 320 local RESULT
308 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
309 local config 321 local config
310 config="${KV_OUT_DIR}/.config" 322 config="${KV_OUT_DIR}/.config"
311 [ ! -f "${config}" ] && config="/proc/config.gz" 323 [ ! -f "${config}" ] && config="/proc/config.gz"
312 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 324 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
313 [ "${RESULT}" = "y" ] && return 0 || return 1 325 [ "${RESULT}" = "y" ] && return 0 || return 1
319# @DESCRIPTION: 331# @DESCRIPTION:
320# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 332# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
321# If linux_config_exists returns false, the results of this are UNDEFINED. You 333# If linux_config_exists returns false, the results of this are UNDEFINED. You
322# MUST call linux_config_exists first. 334# MUST call linux_config_exists first.
323linux_chkconfig_string() { 335linux_chkconfig_string() {
324 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 336 linux_config_qa_check linux_chkconfig_string
325 local config 337 local config
326 config="${KV_OUT_DIR}/.config" 338 config="${KV_OUT_DIR}/.config"
327 [ ! -f "${config}" ] && config="/proc/config.gz" 339 [ ! -f "${config}" ] && config="/proc/config.gz"
328 getfilevar_noexec "CONFIG_${1}" "${config}" 340 getfilevar_noexec "CONFIG_${1}" "${config}"
329} 341}
345# kernel_is 2 6 returns true 357# kernel_is 2 6 returns true
346# kernel_is 2 6 8 returns false 358# kernel_is 2 6 8 returns false
347# kernel_is 2 6 9 returns true 359# kernel_is 2 6 9 returns true
348# @CODE 360# @CODE
349 361
350# got the jist yet? 362# Note: duplicated in kernel-2.eclass
351
352kernel_is() { 363kernel_is() {
353 # if we haven't determined the version yet, we need to. 364 # if we haven't determined the version yet, we need to.
354 get_version 365 linux-info_get_any_version
366
367 # Now we can continue
355 local operator test value x=0 y=0 z=0 368 local operator test value
356 369
357 case ${1} in 370 case ${1#-} in
358 lt) operator="-lt"; shift;; 371 lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 372 gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 373 le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 374 ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 375 eq) operator="-eq"; shift;;
363 *) operator="-eq";; 376 *) operator="-eq";;
364 esac 377 esac
365
366 for x in ${@}; do
367 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
368 value="${value}${x}"
369 z=$((${z} + 1))
370
371 case ${z} in
372 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
373 test="${test}${KV_MAJOR}";;
374 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
375 test="${test}${KV_MINOR}";;
376 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
377 test="${test}${KV_PATCH}";;
378 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 378 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
379 esac 379
380 done 380 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
381 381 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 382 [ ${test} ${operator} ${value} ]
383} 383}
384 384
385get_localversion() { 385get_localversion() {
386 local lv_list i x 386 local lv_list i x
387 387
395 done 395 done
396 x=${x/ /} 396 x=${x/ /}
397 echo ${x} 397 echo ${x}
398} 398}
399 399
400# Check if the Makefile is valid for direct parsing.
401# Check status results:
402# - PASS, use 'getfilevar' to extract values
403# - FAIL, use 'getfilevar_noexec' to extract values
404# The check may fail if:
405# - make is not present
406# - corruption exists in the kernel makefile
407get_makefile_extract_function() {
408 local a='' b='' mkfunc='getfilevar'
409 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
410 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
411 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
412 echo "${mkfunc}"
413}
414
415# internal variable, so we know to only print the warning once
416get_version_warning_done=
417
400# @FUNCTION: get_version 418# @FUNCTION: get_version
401# @DESCRIPTION: 419# @DESCRIPTION:
402# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable 420# 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). 421# (if KV_FULL is already set it does nothing).
404# 422#
406# 424#
407# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 425# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
408# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the 426# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
409# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build). 427# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
410get_version() { 428get_version() {
411 local kbuild_output 429 local kbuild_output mkfunc tmplocal
412 430
413 # no need to execute this twice assuming KV_FULL is populated. 431 # no need to execute this twice assuming KV_FULL is populated.
414 # we can force by unsetting KV_FULL 432 # we can force by unsetting KV_FULL
415 [ -n "${KV_FULL}" ] && return 0 433 [ -n "${KV_FULL}" ] && return 0
416 434
417 # if we dont know KV_FULL, then we need too. 435 # 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 436 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
419 unset KV_DIR 437 unset KV_DIR
420 438
421 # KV_DIR will contain the full path to the sources directory we should use 439 # KV_DIR will contain the full path to the sources directory we should use
440 [ -z "${get_version_warning_done}" ] && \
422 qeinfo "Determining the location of the kernel source code" 441 qeinfo "Determining the location of the kernel source code"
423 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 442 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
424 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 443 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
425 444
426 if [ -z "${KV_DIR}" ] 445 if [ -z "${KV_DIR}" ]
427 then 446 then
447 if [ -z "${get_version_warning_done}" ]; then
448 get_version_warning_done=1
428 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 449 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
429 qeinfo "This package requires Linux sources." 450 #qeinfo "This package requires Linux sources."
430 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 451 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
431 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 452 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
432 qeinfo "(or the kernel you wish to build against)." 453 qeinfo "(or the kernel you wish to build against)."
433 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 454 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
434 else 455 else
435 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 456 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
457 fi
436 fi 458 fi
437 return 1 459 return 1
438 fi 460 fi
439 461
462 if [ -z "${get_version_warning_done}" ]; then
440 qeinfo "Found kernel source directory:" 463 qeinfo "Found kernel source directory:"
441 qeinfo " ${KV_DIR}" 464 qeinfo " ${KV_DIR}"
465 fi
442 466
443 if [ ! -s "${KV_DIR}/Makefile" ] 467 if [ ! -s "${KV_DIR}/Makefile" ]
444 then 468 then
469 if [ -z "${get_version_warning_done}" ]; then
470 get_version_warning_done=1
445 qeerror "Could not find a Makefile in the kernel source directory." 471 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" 472 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
473 fi
447 return 1 474 return 1
448 fi 475 fi
449 476
450 # OK so now we know our sources directory, but they might be using 477 # OK so now we know our sources directory, but they might be using
451 # KBUILD_OUTPUT, and we need this for .config and localversions-* 478 # KBUILD_OUTPUT, and we need this for .config and localversions-*
452 # so we better find it eh? 479 # so we better find it eh?
453 # do we pass KBUILD_OUTPUT on the CLI? 480 # do we pass KBUILD_OUTPUT on the CLI?
454 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 481 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
455 482
483 # keep track of it
484 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
485
486 # Decide the function used to extract makefile variables.
487 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
488
456 # And if we didn't pass it, we can take a nosey in the Makefile 489 # And if we didn't pass it, we can take a nosey in the Makefile
457 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 490 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
458 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 491 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
459 492
460 # And contrary to existing functions I feel we shouldn't trust the 493 # And contrary to existing functions I feel we shouldn't trust the
461 # directory name to find version information as this seems insane. 494 # directory name to find version information as this seems insane.
462 # so we parse ${KV_DIR}/Makefile 495 # so we parse ${KERNEL_MAKEFILE}
463 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 496 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
464 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 497 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
465 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 498 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
466 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 499 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
467 500
468 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 501 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
469 then 502 then
503 if [ -z "${get_version_warning_done}" ]; then
504 get_version_warning_done=1
470 qeerror "Could not detect kernel version." 505 qeerror "Could not detect kernel version."
471 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 506 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
507 fi
472 return 1 508 return 1
473 fi 509 fi
474 510
475 # and in newer versions we can also pull LOCALVERSION if it is set. 511 # and in newer versions we can also pull LOCALVERSION if it is set.
476 # but before we do this, we need to find if we use a different object directory. 512 # but before we do this, we need to find if we use a different object directory.
477 # This *WILL* break if the user is using localversions, but we assume it was 513 # This *WILL* break if the user is using localversions, but we assume it was
478 # caught before this if they are. 514 # caught before this if they are.
479 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
480 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 515 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
481 516
482 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 517 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
483 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 518 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
484 if [ -n "${KV_OUT_DIR}" ]; 519 if [ -n "${KV_OUT_DIR}" ];
485 then 520 then
486 qeinfo "Found kernel object directory:" 521 qeinfo "Found kernel object directory:"
487 qeinfo " ${KV_OUT_DIR}" 522 qeinfo " ${KV_OUT_DIR}"
488
489 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
490 fi 523 fi
491 # and if we STILL have not got it, then we better just set it to KV_DIR 524 # and if we STILL have not got it, then we better just set it to KV_DIR
492 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 525 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
493 526
494 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 527 # Grab the kernel release from the output directory.
495 if linux_config_exists; then 528 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
496 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 529 # this function.
497 KV_LOCAL="${KV_LOCAL//\"/}" 530 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
531 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
532 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
533 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
534 else
535 KV_LOCAL=
536 fi
498 537
499 # For things like git that can append extra stuff: 538 # KV_LOCAL currently contains the full release; discard the first bits.
500 [ -e ${KV_DIR}/scripts/setlocalversion ] && 539 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
501 linux_chkconfig_builtin LOCALVERSION_AUTO && 540
502 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 541 # If the updated local version was not changed, the tree is not prepared.
542 # Clear out KV_LOCAL in that case.
543 # TODO: this does not detect a change in the localversion part between
544 # kernel.release and the value that would be generated.
545 if [ "$KV_LOCAL" = "$tmplocal" ]; then
546 KV_LOCAL=
547 else
548 KV_LOCAL=$tmplocal
503 fi 549 fi
504 550
505 # And we should set KV_FULL to the full expanded version 551 # And we should set KV_FULL to the full expanded version
506 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 552 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
507 553
516# It gets the version of the current running kernel and the result is the same as get_version() if the 562# It gets the version of the current running kernel and the result is the same as get_version() if the
517# function can find the sources. 563# function can find the sources.
518get_running_version() { 564get_running_version() {
519 KV_FULL=$(uname -r) 565 KV_FULL=$(uname -r)
520 566
567 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
568 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
569 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
570 unset KV_FULL
571 get_version
572 return $?
521 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 573 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
522 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
523 unset KV_FULL 575 unset KV_FULL
524 get_version 576 get_version
525 return $? 577 return $?
526 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
529 get_version 581 get_version
530 return $? 582 return $?
531 else 583 else
532 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 584 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
533 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 585 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
534 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 586 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
535 KV_PATCH=${KV_PATCH//-*} 587 KV_PATCH=${KV_PATCH//-*}
536 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 588 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
537 && KV_EXTRA="-${KV_FULL#*-}"
538 fi 589 fi
539 return 0 590 return 0
591}
592
593# This next function is named with the eclass prefix to avoid conflicts with
594# some old versionator-like eclass functions.
595
596# @FUNCTION: linux-info_get_any_version
597# @DESCRIPTION:
598# This attempts to find the version of the sources, and otherwise falls back to
599# the version of the running kernel.
600linux-info_get_any_version() {
601 get_version
602 if [[ $? -ne 0 ]]; then
603 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
604 get_running_version
605 fi
540} 606}
541 607
542 608
543# ebuild check functions 609# ebuild check functions
544# --------------------------------------- 610# ---------------------------------------
588# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 654# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
589# the prefix ~ is not used) doesn't satisfy the directive. 655# the prefix ~ is not used) doesn't satisfy the directive.
590check_extra_config() { 656check_extra_config() {
591 local config negate die error reworkmodulenames 657 local config negate die error reworkmodulenames
592 local soft_errors_count=0 hard_errors_count=0 config_required=0 658 local soft_errors_count=0 hard_errors_count=0 config_required=0
659 # store the value of the QA check, because otherwise we won't catch usages
660 # after if check_extra_config is called AND other direct calls are done
661 # later.
662 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
593 663
594 # if we haven't determined the version yet, we need to 664 # if we haven't determined the version yet, we need to
595 get_version 665 linux-info_get_any_version
596 666
597 # Determine if we really need a .config. The only time when we don't need 667 # Determine if we really need a .config. The only time when we don't need
598 # one is when all of the CONFIG_CHECK options are prefixed with "~". 668 # one is when all of the CONFIG_CHECK options are prefixed with "~".
599 for config in ${CONFIG_CHECK} 669 for config in ${CONFIG_CHECK}
600 do 670 do
608 # In the case where we don't require a .config, we can now bail out 678 # In the case where we don't require a .config, we can now bail out
609 # if the user has no .config as there is nothing to do. Otherwise 679 # if the user has no .config as there is nothing to do. Otherwise
610 # code later will cause a failure due to missing .config. 680 # code later will cause a failure due to missing .config.
611 if ! linux_config_exists; then 681 if ! linux_config_exists; then
612 ewarn "Unable to check for the following kernel config options due" 682 ewarn "Unable to check for the following kernel config options due"
613 ewarn "to absence of any configured kernel sources:" 683 ewarn "to absence of any configured kernel sources or compiled"
684 ewarn "config:"
614 for config in ${CONFIG_CHECK}; do 685 for config in ${CONFIG_CHECK}; do
686 local_error="ERROR_${config#\~}"
687 msg="${!local_error}"
688 if [[ "x${msg}" == "x" ]]; then
689 local_error="WARNING_${config#\~}"
690 msg="${!local_error}"
691 fi
615 ewarn " - ${config#\~}" 692 ewarn " - ${config#\~}${msg:+ - }${msg}"
616 done 693 done
617 ewarn "You're on your own to make sure they are set if needed." 694 ewarn "You're on your own to make sure they are set if needed."
695 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
618 return 0 696 return 0
619 fi 697 fi
620 else 698 else
621 require_configured_kernel 699 require_configured_kernel
622 fi 700 fi
699 if [[ ${hard_errors_count} > 0 ]]; then 777 if [[ ${hard_errors_count} > 0 ]]; then
700 eerror "Please check to make sure these options are set correctly." 778 eerror "Please check to make sure these options are set correctly."
701 eerror "Failure to do so may cause unexpected problems." 779 eerror "Failure to do so may cause unexpected problems."
702 eerror "Once you have satisfied these options, please try merging" 780 eerror "Once you have satisfied these options, please try merging"
703 eerror "this package again." 781 eerror "this package again."
782 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
704 die "Incorrect kernel configuration options" 783 die "Incorrect kernel configuration options"
705 elif [[ ${soft_errors_count} > 0 ]]; then 784 elif [[ ${soft_errors_count} > 0 ]]; then
706 ewarn "Please check to make sure these options are set correctly." 785 ewarn "Please check to make sure these options are set correctly."
707 ewarn "Failure to do so may cause unexpected problems." 786 ewarn "Failure to do so may cause unexpected problems."
708 else 787 else
709 eend 0 788 eend 0
710 fi 789 fi
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
711} 791}
712 792
713check_zlibinflate() { 793check_zlibinflate() {
714 # if we haven't determined the version yet, we need to 794 # if we haven't determined the version yet, we need to
715 require_configured_kernel 795 require_configured_kernel
786# @FUNCTION: linux-info_pkg_setup 866# @FUNCTION: linux-info_pkg_setup
787# @DESCRIPTION: 867# @DESCRIPTION:
788# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 868# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
789# to support the options specified in CONFIG_CHECK (if not null) 869# to support the options specified in CONFIG_CHECK (if not null)
790linux-info_pkg_setup() { 870linux-info_pkg_setup() {
791 get_version 871 linux-info_get_any_version
792 if [[ $rc -ne 0 ]]; then
793 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
794 get_running_version
795 fi
796 872
797 if kernel_is 2 4; then 873 if kernel_is 2 4; then
798 if [ "$( gcc-major-version )" -eq "4" ] ; then 874 if [ "$( gcc-major-version )" -eq "4" ] ; then
799 echo 875 echo
800 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 876 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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