/[gentoo-x86]/eclass/linux-info.eclass
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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 1.83 2010/01/17 21:46:55 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.86 2010/08/05 21:57:53 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 :)
439# 439#
440# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 440# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
441# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the 441# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
442# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build). 442# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
443get_version() { 443get_version() {
444 local kbuild_output mkfunc 444 local kbuild_output mkfunc tmplocal
445 445
446 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
447 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
448 [ -n "${KV_FULL}" ] && return 0 448 [ -n "${KV_FULL}" ] && return 0
449 449
533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
534 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
535 then 535 then
536 qeinfo "Found kernel object directory:" 536 qeinfo "Found kernel object directory:"
537 qeinfo " ${KV_OUT_DIR}" 537 qeinfo " ${KV_OUT_DIR}"
538
539 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
540 fi 538 fi
541 # and if we STILL have not got it, then we better just set it to KV_DIR 539 # and if we STILL have not got it, then we better just set it to KV_DIR
542 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 540 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
543 541
544 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 542 # Grab the kernel release from the output directory.
545 if linux_config_src_exists; then 543 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
546 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 544 # this function.
547 KV_LOCAL="${KV_LOCAL//\"/}" 545 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
546 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
547 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
548 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
549 else
550 KV_LOCAL=
551 fi
548 552
549 # For things like git that can append extra stuff: 553 # KV_LOCAL currently contains the full release; discard the first bits.
550 [ -e ${KV_DIR}/scripts/setlocalversion ] && 554 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
551 linux_chkconfig_builtin LOCALVERSION_AUTO && 555
552 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 556 # If the updated local version was not changed, the tree is not prepared.
557 # Clear out KV_LOCAL in that case.
558 # TODO: this does not detect a change in the localversion part between
559 # kernel.release and the value that would be generated.
560 if [ "$KV_LOCAL" = "$tmplocal" ]; then
561 KV_LOCAL=
562 else
563 KV_LOCAL=$tmplocal
553 fi 564 fi
554 565
555 # And we should set KV_FULL to the full expanded version 566 # And we should set KV_FULL to the full expanded version
556 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 567 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
557 568
566# It gets the version of the current running kernel and the result is the same as get_version() if the 577# It gets the version of the current running kernel and the result is the same as get_version() if the
567# function can find the sources. 578# function can find the sources.
568get_running_version() { 579get_running_version() {
569 KV_FULL=$(uname -r) 580 KV_FULL=$(uname -r)
570 581
582 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
583 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
584 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
585 unset KV_FULL
586 get_version
587 return $?
571 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 588 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
572 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 589 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
573 unset KV_FULL 590 unset KV_FULL
574 get_version 591 get_version
575 return $? 592 return $?
576 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 593 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then

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