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Revision 1.63 Revision 1.75
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 1.63 2009/09/06 23:04:37 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.75 2009/12/11 20:54:06 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."
218 p 221 p
219 }" 222 }"
220 fi 223 fi
221} 224}
222 225
226# @PRIVATE-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
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 funcname="$1"
236 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
237 ewarn "QA: You called $1 before any linux_config_exists!"
238 ewarn "QA: The return value of $1 will NOT gaurenteed later!"
239 fi
240}
223 241
224# @FUNCTION: linux_config_src_exists 242# @FUNCTION: linux_config_src_exists
225# @RETURN: true or false 243# @RETURN: true or false
226# @DESCRIPTION: 244# @DESCRIPTION:
227# It returns true if .config exists in a build directory otherwise false 245# It returns true if .config exists in a build directory otherwise false
228linux_config_src_exists() { 246linux_config_src_exists() {
247 export _LINUX_CONFIG_EXISTS_DONE=1
229 [ -s "${KV_OUT_DIR}/.config" ] 248 [ -s "${KV_OUT_DIR}/.config" ]
230} 249}
231 250
232# @FUNCTION: linux_config_bin_exists 251# @FUNCTION: linux_config_bin_exists
233# @RETURN: true or false 252# @RETURN: true or false
234# @DESCRIPTION: 253# @DESCRIPTION:
235# It returns true if .config exists in /proc, otherwise false 254# It returns true if .config exists in /proc, otherwise false
236linux_config_bin_exists() { 255linux_config_bin_exists() {
237 [ -s "/proc/config.gz" ] 256 export _LINUX_CONFIG_EXISTS_DONE=1
257 [ -n "${I_KNOW_WHAT_I_AM_DOING}" -a -s "/proc/config.gz" ]
238} 258}
239 259
240# @FUNCTION: linux_config_exists 260# @FUNCTION: linux_config_exists
241# @RETURN: true or false 261# @RETURN: true or false
242# @DESCRIPTION: 262# @DESCRIPTION:
268# @DESCRIPTION: 288# @DESCRIPTION:
269# 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
270# 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
271# MUST call linux_config_exists first. 291# MUST call linux_config_exists first.
272linux_chkconfig_present() { 292linux_chkconfig_present() {
293 linux_config_qa_check
273local RESULT 294 local RESULT
274 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 295 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
275 local config 296 local config
276 config="${KV_OUT_DIR}/.config" 297 config="${KV_OUT_DIR}/.config"
277 [ ! -f "${config}" ] && config="/proc/config.gz" 298 [ ! -f "${config}" ] && config="/proc/config.gz"
278 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 299 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
285# @DESCRIPTION: 306# @DESCRIPTION:
286# It checks that CONFIG_<option>=m is present in the current kernel .config 307# 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 308# If linux_config_exists returns false, the results of this are UNDEFINED. You
288# MUST call linux_config_exists first. 309# MUST call linux_config_exists first.
289linux_chkconfig_module() { 310linux_chkconfig_module() {
311 linux_config_qa_check
290local RESULT 312 local RESULT
291 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 313 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
292 local config 314 local config
293 config="${KV_OUT_DIR}/.config" 315 config="${KV_OUT_DIR}/.config"
294 [ ! -f "${config}" ] && config="/proc/config.gz" 316 [ ! -f "${config}" ] && config="/proc/config.gz"
295 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 317 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
302# @DESCRIPTION: 324# @DESCRIPTION:
303# It checks that CONFIG_<option>=y is present in the current kernel .config 325# 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 326# If linux_config_exists returns false, the results of this are UNDEFINED. You
305# MUST call linux_config_exists first. 327# MUST call linux_config_exists first.
306linux_chkconfig_builtin() { 328linux_chkconfig_builtin() {
329 linux_config_qa_check
307local RESULT 330 local RESULT
308 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 331 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
309 local config 332 local config
310 config="${KV_OUT_DIR}/.config" 333 config="${KV_OUT_DIR}/.config"
311 [ ! -f "${config}" ] && config="/proc/config.gz" 334 [ ! -f "${config}" ] && config="/proc/config.gz"
312 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 335 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
319# @DESCRIPTION: 342# @DESCRIPTION:
320# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 343# 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 344# If linux_config_exists returns false, the results of this are UNDEFINED. You
322# MUST call linux_config_exists first. 345# MUST call linux_config_exists first.
323linux_chkconfig_string() { 346linux_chkconfig_string() {
347 linux_config_qa_check
324 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 348 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
325 local config 349 local config
326 config="${KV_OUT_DIR}/.config" 350 config="${KV_OUT_DIR}/.config"
327 [ ! -f "${config}" ] && config="/proc/config.gz" 351 [ ! -f "${config}" ] && config="/proc/config.gz"
328 getfilevar_noexec "CONFIG_${1}" "${config}" 352 getfilevar_noexec "CONFIG_${1}" "${config}"
349 373
350# got the jist yet? 374# got the jist yet?
351 375
352kernel_is() { 376kernel_is() {
353 # if we haven't determined the version yet, we need to. 377 # if we haven't determined the version yet, we need to.
354 get_version 378 linux-info_get_any_version
379
355 local operator test value x=0 y=0 z=0 380 local operator test value x=0 y=0 z=0
356 381
357 case ${1} in 382 case ${1} in
358 lt) operator="-lt"; shift;; 383 -lt|lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 384 -gt|gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 385 -le|le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 386 -ge|ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 387 -eq|eq) operator="-eq"; shift;;
363 *) operator="-eq";; 388 *) operator="-eq";;
364 esac 389 esac
365 390
366 for x in ${@}; do 391 for x in ${@}; do
367 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 392 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
368 value="${value}${x}" 393 value="${value}${x}"
376 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 401 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
377 test="${test}${KV_PATCH}";; 402 test="${test}${KV_PATCH}";;
378 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 403 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
379 esac 404 esac
380 done 405 done
381 406
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 407 [ ${test} ${operator} ${value} ] && return 0 || return 1
383} 408}
384 409
385get_localversion() { 410get_localversion() {
386 local lv_list i x 411 local lv_list i x
505 fi 530 fi
506 # and if we STILL have not got it, then we better just set it to KV_DIR 531 # and if we STILL have not got it, then we better just set it to KV_DIR
507 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 532 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
508 533
509 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 534 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
510 if linux_config_exists; then 535 if linux_config_src_exists; then
511 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 536 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
512 KV_LOCAL="${KV_LOCAL//\"/}" 537 KV_LOCAL="${KV_LOCAL//\"/}"
513 538
514 # For things like git that can append extra stuff: 539 # For things like git that can append extra stuff:
515 [ -e ${KV_DIR}/scripts/setlocalversion ] && 540 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
552 && KV_EXTRA="-${KV_FULL#*-}" 577 && KV_EXTRA="-${KV_FULL#*-}"
553 fi 578 fi
554 return 0 579 return 0
555} 580}
556 581
582# This next function is named with the eclass prefix to avoid conflicts with
583# some old versionator-like eclass functions.
584
585# @FUNCTION: linux-info_get_any_version
586# @DESCRIPTION:
587# This attempts to find the version of the sources, and otherwise falls back to
588# the version of the running kernel.
589linux-info_get_any_version() {
590 get_version
591 if [[ $? -ne 0 ]]; then
592 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
593 get_running_version
594 fi
595}
596
557 597
558# ebuild check functions 598# ebuild check functions
559# --------------------------------------- 599# ---------------------------------------
560 600
561# @FUNCTION: check_kernel_built 601# @FUNCTION: check_kernel_built
603# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 643# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
604# the prefix ~ is not used) doesn't satisfy the directive. 644# the prefix ~ is not used) doesn't satisfy the directive.
605check_extra_config() { 645check_extra_config() {
606 local config negate die error reworkmodulenames 646 local config negate die error reworkmodulenames
607 local soft_errors_count=0 hard_errors_count=0 config_required=0 647 local soft_errors_count=0 hard_errors_count=0 config_required=0
648 # store the value of the QA check, because otherwise we won't catch usages
649 # after if check_extra_config is called AND other direct calls are done
650 # later.
651 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
608 652
609 # if we haven't determined the version yet, we need to 653 # if we haven't determined the version yet, we need to
610 get_version 654 linux-info_get_any_version
611 655
612 # Determine if we really need a .config. The only time when we don't need 656 # Determine if we really need a .config. The only time when we don't need
613 # one is when all of the CONFIG_CHECK options are prefixed with "~". 657 # one is when all of the CONFIG_CHECK options are prefixed with "~".
614 for config in ${CONFIG_CHECK} 658 for config in ${CONFIG_CHECK}
615 do 659 do
617 config_required=1 661 config_required=1
618 break 662 break
619 fi 663 fi
620 done 664 done
621 665
666 # TODO: After we enable the new code for /proc/config.gz, we need to
667 # change this back to linux_config_exists.
622 if [[ ${config_required} == 0 ]]; then 668 if [[ ${config_required} == 0 ]]; then
623 # In the case where we don't require a .config, we can now bail out 669 # In the case where we don't require a .config, we can now bail out
624 # if the user has no .config as there is nothing to do. Otherwise 670 # if the user has no .config as there is nothing to do. Otherwise
625 # code later will cause a failure due to missing .config. 671 # code later will cause a failure due to missing .config.
626 if ! linux_config_exists; then 672 if ! linux_config_src_exists; then
627 ewarn "Unable to check for the following kernel config options due" 673 ewarn "Unable to check for the following kernel config options due"
628 ewarn "to absence of any configured kernel sources:" 674 ewarn "to absence of any configured kernel sources or compiled"
675 ewarn "config:"
629 for config in ${CONFIG_CHECK}; do 676 for config in ${CONFIG_CHECK}; do
630 ewarn " - ${config#\~}" 677 ewarn " - ${config#\~}"
631 done 678 done
632 ewarn "You're on your own to make sure they are set if needed." 679 ewarn "You're on your own to make sure they are set if needed."
680 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
633 return 0 681 return 0
634 fi 682 fi
635 else 683 else
636 require_configured_kernel 684 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
637 fi 685 fi
638 686
639 einfo "Checking for suitable kernel configuration options..." 687 einfo "Checking for suitable kernel configuration options..."
640 688
641 for config in ${CONFIG_CHECK} 689 for config in ${CONFIG_CHECK}
714 if [[ ${hard_errors_count} > 0 ]]; then 762 if [[ ${hard_errors_count} > 0 ]]; then
715 eerror "Please check to make sure these options are set correctly." 763 eerror "Please check to make sure these options are set correctly."
716 eerror "Failure to do so may cause unexpected problems." 764 eerror "Failure to do so may cause unexpected problems."
717 eerror "Once you have satisfied these options, please try merging" 765 eerror "Once you have satisfied these options, please try merging"
718 eerror "this package again." 766 eerror "this package again."
767 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
719 die "Incorrect kernel configuration options" 768 die "Incorrect kernel configuration options"
720 elif [[ ${soft_errors_count} > 0 ]]; then 769 elif [[ ${soft_errors_count} > 0 ]]; then
721 ewarn "Please check to make sure these options are set correctly." 770 ewarn "Please check to make sure these options are set correctly."
722 ewarn "Failure to do so may cause unexpected problems." 771 ewarn "Failure to do so may cause unexpected problems."
723 else 772 else
724 eend 0 773 eend 0
725 fi 774 fi
775 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
726} 776}
727 777
728check_zlibinflate() { 778check_zlibinflate() {
729 # if we haven't determined the version yet, we need to 779 # if we haven't determined the version yet, we need to
730 require_configured_kernel 780 require_configured_kernel
801# @FUNCTION: linux-info_pkg_setup 851# @FUNCTION: linux-info_pkg_setup
802# @DESCRIPTION: 852# @DESCRIPTION:
803# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 853# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
804# to support the options specified in CONFIG_CHECK (if not null) 854# to support the options specified in CONFIG_CHECK (if not null)
805linux-info_pkg_setup() { 855linux-info_pkg_setup() {
806 get_version 856 linux-info_get_any_version
807 if [[ $rc -ne 0 ]]; then
808 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
809 get_running_version
810 fi
811 857
812 if kernel_is 2 4; then 858 if kernel_is 2 4; then
813 if [ "$( gcc-major-version )" -eq "4" ] ; then 859 if [ "$( gcc-major-version )" -eq "4" ] ; then
814 echo 860 echo
815 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 861 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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