/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.62 Revision 1.74
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2006 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.62 2009/09/06 22:54:58 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.74 2009/12/11 20:42:51 robbat2 Exp $
4# 4#
5# Original author: John Mylchreest <johnm@gentoo.org> 5# Original author: John Mylchreest <johnm@gentoo.org>
6# Maintainer: kernel-misc@gentoo.org 6# Maintainer: kernel-misc@gentoo.org
7# 7#
8# Please direct your bugs to the current eclass maintainer :) 8# Please direct your bugs to the current eclass maintainer :)
108# And to ensure all the weirdness with crosscompile 108# And to ensure all the weirdness with crosscompile
109inherit toolchain-funcs versionator 109inherit toolchain-funcs versionator
110 110
111EXPORT_FUNCTIONS pkg_setup 111EXPORT_FUNCTIONS pkg_setup
112 112
113DEPEND=""
114RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
113DEPEND="kernel_linux? ( virtual/linux-sources )" 117DEPEND="kernel_linux? ( virtual/linux-sources )"
114RDEPEND=""
115 118
116# Overwritable environment Var's 119# Overwritable environment Var's
117# --------------------------------------- 120# ---------------------------------------
118KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
119 122
200 ERROR=0 203 ERROR=0
201 mycat='cat' 204 mycat='cat'
202 205
203 [ -z "${1}" ] && ERROR=1 206 [ -z "${1}" ] && ERROR=1
204 [ ! -f "${2}" ] && ERROR=1 207 [ ! -f "${2}" ] && ERROR=1
205 [ "${2#.gz}" != "${2}" ] && mycat='zcat' 208 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
206 209
207 if [ "${ERROR}" = 1 ] 210 if [ "${ERROR}" = 1 ]
208 then 211 then
209 echo -e "\n" 212 echo -e "\n"
210 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 213 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
232# @FUNCTION: linux_config_bin_exists 235# @FUNCTION: linux_config_bin_exists
233# @RETURN: true or false 236# @RETURN: true or false
234# @DESCRIPTION: 237# @DESCRIPTION:
235# It returns true if .config exists in /proc, otherwise false 238# It returns true if .config exists in /proc, otherwise false
236linux_config_bin_exists() { 239linux_config_bin_exists() {
237 [ -s "/proc/config.gz" ] 240 [ -n "${I_KNOW_WHAT_I_AM_DOING}" -a -s "/proc/config.gz" ]
238} 241}
239 242
240# @FUNCTION: linux_config_exists 243# @FUNCTION: linux_config_exists
241# @RETURN: true or false 244# @RETURN: true or false
242# @DESCRIPTION: 245# @DESCRIPTION:
349 352
350# got the jist yet? 353# got the jist yet?
351 354
352kernel_is() { 355kernel_is() {
353 # if we haven't determined the version yet, we need to. 356 # if we haven't determined the version yet, we need to.
354 get_version 357 linux-info_get_any_version
358
355 local operator test value x=0 y=0 z=0 359 local operator test value x=0 y=0 z=0
356 360
357 case ${1} in 361 case ${1} in
358 lt) operator="-lt"; shift;; 362 -lt|lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 363 -gt|gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 364 -le|le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 365 -ge|ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 366 -eq|eq) operator="-eq"; shift;;
363 *) operator="-eq";; 367 *) operator="-eq";;
364 esac 368 esac
365 369
366 for x in ${@}; do 370 for x in ${@}; do
367 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 371 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
368 value="${value}${x}" 372 value="${value}${x}"
376 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 380 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
377 test="${test}${KV_PATCH}";; 381 test="${test}${KV_PATCH}";;
378 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 382 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
379 esac 383 esac
380 done 384 done
381 385
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 386 [ ${test} ${operator} ${value} ] && return 0 || return 1
383} 387}
384 388
385get_localversion() { 389get_localversion() {
386 local lv_list i x 390 local lv_list i x
395 done 399 done
396 x=${x/ /} 400 x=${x/ /}
397 echo ${x} 401 echo ${x}
398} 402}
399 403
404# internal variable, so we know to only print the warning once
405get_version_warning_done=
406
400# @FUNCTION: get_version 407# @FUNCTION: get_version
401# @DESCRIPTION: 408# @DESCRIPTION:
402# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable 409# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
403# (if KV_FULL is already set it does nothing). 410# (if KV_FULL is already set it does nothing).
404# 411#
417 # if we dont know KV_FULL, then we need too. 424 # if we dont know KV_FULL, then we need too.
418 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 425 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
419 unset KV_DIR 426 unset KV_DIR
420 427
421 # KV_DIR will contain the full path to the sources directory we should use 428 # KV_DIR will contain the full path to the sources directory we should use
429 [ -z "${get_version_warning_done}" ] && \
422 qeinfo "Determining the location of the kernel source code" 430 qeinfo "Determining the location of the kernel source code"
423 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 431 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
424 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 432 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
425 433
426 if [ -z "${KV_DIR}" ] 434 if [ -z "${KV_DIR}" ]
427 then 435 then
436 if [ -z "${get_version_warning_done}" ]; then
437 get_version_warning_done=1
428 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 438 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
429 qeinfo "This package requires Linux sources." 439 #qeinfo "This package requires Linux sources."
430 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 440 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
431 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 441 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
432 qeinfo "(or the kernel you wish to build against)." 442 qeinfo "(or the kernel you wish to build against)."
433 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 443 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
434 else 444 else
435 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 445 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
446 fi
436 fi 447 fi
437 return 1 448 return 1
438 fi 449 fi
439 450
451 if [ -z "${get_version_warning_done}" ]; then
440 qeinfo "Found kernel source directory:" 452 qeinfo "Found kernel source directory:"
441 qeinfo " ${KV_DIR}" 453 qeinfo " ${KV_DIR}"
454 fi
442 455
443 if [ ! -s "${KV_DIR}/Makefile" ] 456 if [ ! -s "${KV_DIR}/Makefile" ]
444 then 457 then
458 if [ -z "${get_version_warning_done}" ]; then
459 get_version_warning_done=1
445 qeerror "Could not find a Makefile in the kernel source directory." 460 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" 461 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
462 fi
447 return 1 463 return 1
448 fi 464 fi
449 465
450 # OK so now we know our sources directory, but they might be using 466 # OK so now we know our sources directory, but they might be using
451 # KBUILD_OUTPUT, and we need this for .config and localversions-* 467 # KBUILD_OUTPUT, and we need this for .config and localversions-*
465 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 481 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)"
466 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 482 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)"
467 483
468 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 484 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
469 then 485 then
486 if [ -z "${get_version_warning_done}" ]; then
487 get_version_warning_done=1
470 qeerror "Could not detect kernel version." 488 qeerror "Could not detect kernel version."
471 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 489 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
490 fi
472 return 1 491 return 1
473 fi 492 fi
474 493
475 # and in newer versions we can also pull LOCALVERSION if it is set. 494 # and in newer versions we can also pull LOCALVERSION if it is set.
476 # but before we do this, we need to find if we use a different object directory. 495 # but before we do this, we need to find if we use a different object directory.
490 fi 509 fi
491 # and if we STILL have not got it, then we better just set it to KV_DIR 510 # and if we STILL have not got it, then we better just set it to KV_DIR
492 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 511 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
493 512
494 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 513 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
495 if linux_config_exists; then 514 if linux_config_src_exists; then
496 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 515 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
497 KV_LOCAL="${KV_LOCAL//\"/}" 516 KV_LOCAL="${KV_LOCAL//\"/}"
498 517
499 # For things like git that can append extra stuff: 518 # For things like git that can append extra stuff:
500 [ -e ${KV_DIR}/scripts/setlocalversion ] && 519 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
537 && KV_EXTRA="-${KV_FULL#*-}" 556 && KV_EXTRA="-${KV_FULL#*-}"
538 fi 557 fi
539 return 0 558 return 0
540} 559}
541 560
561# This next function is named with the eclass prefix to avoid conflicts with
562# some old versionator-like eclass functions.
563
564# @FUNCTION: linux-info_get_any_version
565# @DESCRIPTION:
566# This attempts to find the version of the sources, and otherwise falls back to
567# the version of the running kernel.
568linux-info_get_any_version() {
569 get_version
570 if [[ $? -ne 0 ]]; then
571 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
572 get_running_version
573 fi
574}
575
542 576
543# ebuild check functions 577# ebuild check functions
544# --------------------------------------- 578# ---------------------------------------
545 579
546# @FUNCTION: check_kernel_built 580# @FUNCTION: check_kernel_built
590check_extra_config() { 624check_extra_config() {
591 local config negate die error reworkmodulenames 625 local config negate die error reworkmodulenames
592 local soft_errors_count=0 hard_errors_count=0 config_required=0 626 local soft_errors_count=0 hard_errors_count=0 config_required=0
593 627
594 # if we haven't determined the version yet, we need to 628 # if we haven't determined the version yet, we need to
595 get_version 629 linux-info_get_any_version
596 630
597 # Determine if we really need a .config. The only time when we don't need 631 # 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 "~". 632 # one is when all of the CONFIG_CHECK options are prefixed with "~".
599 for config in ${CONFIG_CHECK} 633 for config in ${CONFIG_CHECK}
600 do 634 do
602 config_required=1 636 config_required=1
603 break 637 break
604 fi 638 fi
605 done 639 done
606 640
641 # TODO: After we enable the new code for /proc/config.gz, we need to
642 # change this back to linux_config_exists.
607 if [[ ${config_required} == 0 ]]; then 643 if [[ ${config_required} == 0 ]]; then
608 # In the case where we don't require a .config, we can now bail out 644 # 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 645 # if the user has no .config as there is nothing to do. Otherwise
610 # code later will cause a failure due to missing .config. 646 # code later will cause a failure due to missing .config.
611 if ! linux_config_exists; then 647 if ! linux_config_src_exists; then
612 ewarn "Unable to check for the following kernel config options due" 648 ewarn "Unable to check for the following kernel config options due"
613 ewarn "to absence of any configured kernel sources:" 649 ewarn "to absence of any configured kernel sources or compiled"
650 ewarn "config:"
614 for config in ${CONFIG_CHECK}; do 651 for config in ${CONFIG_CHECK}; do
615 ewarn " - ${config#\~}" 652 ewarn " - ${config#\~}"
616 done 653 done
617 ewarn "You're on your own to make sure they are set if needed." 654 ewarn "You're on your own to make sure they are set if needed."
618 return 0 655 return 0
619 fi 656 fi
620 else 657 else
621 require_configured_kernel 658 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
622 fi 659 fi
623 660
624 einfo "Checking for suitable kernel configuration options..." 661 einfo "Checking for suitable kernel configuration options..."
625 662
626 for config in ${CONFIG_CHECK} 663 for config in ${CONFIG_CHECK}
786# @FUNCTION: linux-info_pkg_setup 823# @FUNCTION: linux-info_pkg_setup
787# @DESCRIPTION: 824# @DESCRIPTION:
788# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 825# 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) 826# to support the options specified in CONFIG_CHECK (if not null)
790linux-info_pkg_setup() { 827linux-info_pkg_setup() {
791 get_version 828 linux-info_get_any_version
792 if [[ $rc -ne 0 ]]; then
793 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
794 get_running_version
795 fi
796 829
797 if kernel_is 2 4; then 830 if kernel_is 2 4; then
798 if [ "$( gcc-major-version )" -eq "4" ] ; then 831 if [ "$( gcc-major-version )" -eq "4" ] ; then
799 echo 832 echo
800 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 833 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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