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1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2012 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 1.92 2012/06/26 00:06:14 robbat2 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
19# using additional eclasses. 16# using additional eclasses.
20# 17#
21# "kernel config" in this file means: 18# "kernel config" in this file means:
22# The .config of the currently installed sources is used as the first 19# The .config of the currently installed sources is used as the first
23# preference, with a fall-back to bundled config (/proc/config.gz) if available. 20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
21#
22# Before using any of the config-handling functions in this eclass, you must
23# ensure that one of the following functions has been called (in order of
24# preference), otherwise you will get bugs like #364041):
25# linux-info_pkg_setup
26# linux-info_get_any_version
27# get_version
28# get_running_version
24 29
25# A Couple of env vars are available to effect usage of this eclass 30# A Couple of env vars are available to effect usage of this eclass
26# These are as follows: 31# These are as follows:
27 32
28# @ECLASS-VARIABLE: KERNEL_DIR 33# @ECLASS-VARIABLE: KERNEL_DIR
40# You can also check that an option doesn't exist by 45# You can also check that an option doesn't exist by
41# prepending it with an exclamation mark (!). 46# prepending it with an exclamation mark (!).
42# 47#
43# e.g.: CONFIG_CHECK="!MTRR" 48# e.g.: CONFIG_CHECK="!MTRR"
44# 49#
45# To simply warn about a missing option, prepend a '~'. 50# To simply warn about a missing option, prepend a '~'.
46# It may be combined with '!'. 51# It may be combined with '!'.
47# 52#
48# In general, most checks should be non-fatal. The only time fatal checks should 53# 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 54# be used is for building kernel modules or cases that a compile will fail
50# without the option. 55# without the option.
99# @ECLASS-VARIABLE: KV_OUT_DIR 104# @ECLASS-VARIABLE: KV_OUT_DIR
100# @DESCRIPTION: 105# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless 106# 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. 107# KBUILD_OUTPUT is used. This should be used for referencing .config.
103 108
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 109# And to ensure all the weirdness with crosscompile
109inherit toolchain-funcs versionator 110inherit toolchain-funcs versionator
110 111
111EXPORT_FUNCTIONS pkg_setup 112EXPORT_FUNCTIONS pkg_setup
112 113
113DEPEND="kernel_linux? ( virtual/linux-sources )" 114DEPEND=""
114RDEPEND="" 115RDEPEND=""
115 116
116# Overwritable environment Var's 117# Overwritable environment Var's
117# --------------------------------------- 118# ---------------------------------------
118KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
150 esac 151 esac
151 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
152} 153}
153 154
154qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
155qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
156 158
157# File Functions 159# File Functions
158# --------------------------------------- 160# ---------------------------------------
159 161
200 ERROR=0 202 ERROR=0
201 mycat='cat' 203 mycat='cat'
202 204
203 [ -z "${1}" ] && ERROR=1 205 [ -z "${1}" ] && ERROR=1
204 [ ! -f "${2}" ] && ERROR=1 206 [ ! -f "${2}" ] && ERROR=1
205 [ "${2#.gz}" != "${2}" ] && mycat='zcat' 207 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
206 208
207 if [ "${ERROR}" = 1 ] 209 if [ "${ERROR}" = 1 ]
208 then 210 then
209 echo -e "\n" 211 echo -e "\n"
210 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 212 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
211 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 213 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
212 else 214 else
213 ${mycat} "${2}" | \ 215 ${mycat} "${2}" | \
214 sed -n \ 216 sed -n \
215 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 217 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
216 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 218 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
217 s,[[:space:]]*\$,,g ; 219 s,[[:space:]]*\$,,g ;
218 p 220 p
219 }" 221 }"
220 fi 222 fi
221} 223}
222 224
225# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
226# @INTERNAL
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 f="$1"
236 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
237 ewarn "QA: You called $f before any linux_config_exists!"
238 ewarn "QA: The return value of $f will NOT guaranteed later!"
239 fi
240}
223 241
224# @FUNCTION: linux_config_src_exists 242# @FUNCTION: linux_config_src_exists
225# @RETURN: true or false 243# @RETURN: true or false
226# @DESCRIPTION: 244# @DESCRIPTION:
227# It returns true if .config exists in a build directory otherwise false 245# It returns true if .config exists in a build directory otherwise false
228linux_config_src_exists() { 246linux_config_src_exists() {
247 export _LINUX_CONFIG_EXISTS_DONE=1
229 [ -s "${KV_OUT_DIR}/.config" ] 248 [ -s "${KV_OUT_DIR}/.config" ]
230} 249}
231 250
232# @FUNCTION: linux_config_bin_exists 251# @FUNCTION: linux_config_bin_exists
233# @RETURN: true or false 252# @RETURN: true or false
234# @DESCRIPTION: 253# @DESCRIPTION:
235# It returns true if .config exists in /proc, otherwise false 254# It returns true if .config exists in /proc, otherwise false
236linux_config_bin_exists() { 255linux_config_bin_exists() {
256 export _LINUX_CONFIG_EXISTS_DONE=1
237 [ -s "/proc/config.gz" ] 257 [ -s "/proc/config.gz" ]
238} 258}
239 259
240# @FUNCTION: linux_config_exists 260# @FUNCTION: linux_config_exists
241# @RETURN: true or false 261# @RETURN: true or false
268# @DESCRIPTION: 288# @DESCRIPTION:
269# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 289# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
270# If linux_config_exists returns false, the results of this are UNDEFINED. You 290# If linux_config_exists returns false, the results of this are UNDEFINED. You
271# MUST call linux_config_exists first. 291# MUST call linux_config_exists first.
272linux_chkconfig_present() { 292linux_chkconfig_present() {
293 linux_config_qa_check linux_chkconfig_present
273local RESULT 294 local RESULT
274 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
275 local config 295 local config
276 config="${KV_OUT_DIR}/.config" 296 config="${KV_OUT_DIR}/.config"
277 [ ! -f "${config}" ] && config="/proc/config.gz" 297 [ ! -f "${config}" ] && config="/proc/config.gz"
278 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
279 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 299 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
285# @DESCRIPTION: 305# @DESCRIPTION:
286# It checks that CONFIG_<option>=m is present in the current kernel .config 306# 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 307# If linux_config_exists returns false, the results of this are UNDEFINED. You
288# MUST call linux_config_exists first. 308# MUST call linux_config_exists first.
289linux_chkconfig_module() { 309linux_chkconfig_module() {
310 linux_config_qa_check linux_chkconfig_module
290local RESULT 311 local RESULT
291 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
292 local config 312 local config
293 config="${KV_OUT_DIR}/.config" 313 config="${KV_OUT_DIR}/.config"
294 [ ! -f "${config}" ] && config="/proc/config.gz" 314 [ ! -f "${config}" ] && config="/proc/config.gz"
295 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
296 [ "${RESULT}" = "m" ] && return 0 || return 1 316 [ "${RESULT}" = "m" ] && return 0 || return 1
302# @DESCRIPTION: 322# @DESCRIPTION:
303# It checks that CONFIG_<option>=y is present in the current kernel .config 323# It checks that CONFIG_<option>=y is present in the current kernel .config
304# If linux_config_exists returns false, the results of this are UNDEFINED. You 324# If linux_config_exists returns false, the results of this are UNDEFINED. You
305# MUST call linux_config_exists first. 325# MUST call linux_config_exists first.
306linux_chkconfig_builtin() { 326linux_chkconfig_builtin() {
327 linux_config_qa_check linux_chkconfig_builtin
307local RESULT 328 local RESULT
308 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
309 local config 329 local config
310 config="${KV_OUT_DIR}/.config" 330 config="${KV_OUT_DIR}/.config"
311 [ ! -f "${config}" ] && config="/proc/config.gz" 331 [ ! -f "${config}" ] && config="/proc/config.gz"
312 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")" 332 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
313 [ "${RESULT}" = "y" ] && return 0 || return 1 333 [ "${RESULT}" = "y" ] && return 0 || return 1
319# @DESCRIPTION: 339# @DESCRIPTION:
320# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 340# 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 341# If linux_config_exists returns false, the results of this are UNDEFINED. You
322# MUST call linux_config_exists first. 342# MUST call linux_config_exists first.
323linux_chkconfig_string() { 343linux_chkconfig_string() {
324 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 344 linux_config_qa_check linux_chkconfig_string
325 local config 345 local config
326 config="${KV_OUT_DIR}/.config" 346 config="${KV_OUT_DIR}/.config"
327 [ ! -f "${config}" ] && config="/proc/config.gz" 347 [ ! -f "${config}" ] && config="/proc/config.gz"
328 getfilevar_noexec "CONFIG_${1}" "${config}" 348 getfilevar_noexec "CONFIG_${1}" "${config}"
329} 349}
345# kernel_is 2 6 returns true 365# kernel_is 2 6 returns true
346# kernel_is 2 6 8 returns false 366# kernel_is 2 6 8 returns false
347# kernel_is 2 6 9 returns true 367# kernel_is 2 6 9 returns true
348# @CODE 368# @CODE
349 369
350# got the jist yet? 370# Note: duplicated in kernel-2.eclass
351
352kernel_is() { 371kernel_is() {
353 # if we haven't determined the version yet, we need to. 372 # if we haven't determined the version yet, we need to.
354 get_version 373 linux-info_get_any_version
374
375 # Now we can continue
355 local operator test value x=0 y=0 z=0 376 local operator test value
356 377
357 case ${1} in 378 case ${1#-} in
358 lt) operator="-lt"; shift;; 379 lt) operator="-lt"; shift;;
359 gt) operator="-gt"; shift;; 380 gt) operator="-gt"; shift;;
360 le) operator="-le"; shift;; 381 le) operator="-le"; shift;;
361 ge) operator="-ge"; shift;; 382 ge) operator="-ge"; shift;;
362 eq) operator="-eq"; shift;; 383 eq) operator="-eq"; shift;;
363 *) operator="-eq";; 384 *) operator="-eq";;
364 esac 385 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.";; 386 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
379 esac 387
380 done 388 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
381 389 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
382 [ ${test} ${operator} ${value} ] && return 0 || return 1 390 [ ${test} ${operator} ${value} ]
383} 391}
384 392
385get_localversion() { 393get_localversion() {
386 local lv_list i x 394 local lv_list i x
387 395
395 done 403 done
396 x=${x/ /} 404 x=${x/ /}
397 echo ${x} 405 echo ${x}
398} 406}
399 407
408# Check if the Makefile is valid for direct parsing.
409# Check status results:
410# - PASS, use 'getfilevar' to extract values
411# - FAIL, use 'getfilevar_noexec' to extract values
412# The check may fail if:
413# - make is not present
414# - corruption exists in the kernel makefile
415get_makefile_extract_function() {
416 local a='' b='' mkfunc='getfilevar'
417 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
418 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
419 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
420 echo "${mkfunc}"
421}
422
423# internal variable, so we know to only print the warning once
424get_version_warning_done=
425
400# @FUNCTION: get_version 426# @FUNCTION: get_version
401# @DESCRIPTION: 427# @DESCRIPTION:
402# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable 428# 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). 429# (if KV_FULL is already set it does nothing).
404# 430#
406# 432#
407# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 433# 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 434# 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). 435# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
410get_version() { 436get_version() {
411 local kbuild_output 437 local kbuild_output mkfunc tmplocal
412 438
413 # no need to execute this twice assuming KV_FULL is populated. 439 # no need to execute this twice assuming KV_FULL is populated.
414 # we can force by unsetting KV_FULL 440 # we can force by unsetting KV_FULL
415 [ -n "${KV_FULL}" ] && return 0 441 [ -n "${KV_FULL}" ] && return 0
416 442
417 # if we dont know KV_FULL, then we need too. 443 # 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 444 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
419 unset KV_DIR 445 unset KV_DIR
420 446
421 # KV_DIR will contain the full path to the sources directory we should use 447 # KV_DIR will contain the full path to the sources directory we should use
448 [ -z "${get_version_warning_done}" ] && \
422 qeinfo "Determining the location of the kernel source code" 449 qeinfo "Determining the location of the kernel source code"
423 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 450 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
424 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 451 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
425 452
426 if [ -z "${KV_DIR}" ] 453 if [ -z "${KV_DIR}" ]
427 then 454 then
455 if [ -z "${get_version_warning_done}" ]; then
456 get_version_warning_done=1
428 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 457 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
429 qeinfo "This package requires Linux sources." 458 #qeinfo "This package requires Linux sources."
430 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 459 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
431 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 460 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
432 qeinfo "(or the kernel you wish to build against)." 461 qeinfo "(or the kernel you wish to build against)."
433 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 462 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
434 else 463 else
435 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 464 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
465 fi
436 fi 466 fi
437 return 1 467 return 1
438 fi 468 fi
439 469
470 if [ -z "${get_version_warning_done}" ]; then
440 qeinfo "Found kernel source directory:" 471 qeinfo "Found kernel source directory:"
441 qeinfo " ${KV_DIR}" 472 qeinfo " ${KV_DIR}"
473 fi
442 474
443 if [ ! -s "${KV_DIR}/Makefile" ] 475 if [ ! -s "${KV_DIR}/Makefile" ]
444 then 476 then
477 if [ -z "${get_version_warning_done}" ]; then
478 get_version_warning_done=1
445 qeerror "Could not find a Makefile in the kernel source directory." 479 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" 480 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
481 fi
447 return 1 482 return 1
448 fi 483 fi
449 484
450 # OK so now we know our sources directory, but they might be using 485 # OK so now we know our sources directory, but they might be using
451 # KBUILD_OUTPUT, and we need this for .config and localversions-* 486 # KBUILD_OUTPUT, and we need this for .config and localversions-*
452 # so we better find it eh? 487 # so we better find it eh?
453 # do we pass KBUILD_OUTPUT on the CLI? 488 # do we pass KBUILD_OUTPUT on the CLI?
454 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 489 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
455 490
491 # keep track of it
492 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
493
494 # Decide the function used to extract makefile variables.
495 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
496
456 # And if we didn't pass it, we can take a nosey in the Makefile 497 # And if we didn't pass it, we can take a nosey in the Makefile
457 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 498 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
458 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 499 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
459 500
460 # And contrary to existing functions I feel we shouldn't trust the 501 # And contrary to existing functions I feel we shouldn't trust the
461 # directory name to find version information as this seems insane. 502 # directory name to find version information as this seems insane.
462 # so we parse ${KV_DIR}/Makefile 503 # so we parse ${KERNEL_MAKEFILE}
463 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 504 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
464 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 505 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
465 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 506 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
466 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 507 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
467 508
468 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 509 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
469 then 510 then
511 if [ -z "${get_version_warning_done}" ]; then
512 get_version_warning_done=1
470 qeerror "Could not detect kernel version." 513 qeerror "Could not detect kernel version."
471 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 514 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
515 fi
472 return 1 516 return 1
473 fi 517 fi
474 518
475 # and in newer versions we can also pull LOCALVERSION if it is set. 519 # and in newer versions we can also pull LOCALVERSION if it is set.
476 # but before we do this, we need to find if we use a different object directory. 520 # but before we do this, we need to find if we use a different object directory.
477 # This *WILL* break if the user is using localversions, but we assume it was 521 # This *WILL* break if the user is using localversions, but we assume it was
478 # caught before this if they are. 522 # caught before this if they are.
479 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
480 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 523 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
481 524
482 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 525 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
483 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 526 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
484 if [ -n "${KV_OUT_DIR}" ]; 527 if [ -n "${KV_OUT_DIR}" ];
485 then 528 then
486 qeinfo "Found kernel object directory:" 529 qeinfo "Found kernel object directory:"
487 qeinfo " ${KV_OUT_DIR}" 530 qeinfo " ${KV_OUT_DIR}"
488
489 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
490 fi 531 fi
491 # and if we STILL have not got it, then we better just set it to KV_DIR 532 # and if we STILL have not got it, then we better just set it to KV_DIR
492 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 533 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
493 534
494 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 535 # Grab the kernel release from the output directory.
495 if linux_config_exists; then 536 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
496 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 537 # this function.
497 KV_LOCAL="${KV_LOCAL//\"/}" 538 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
539 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
540 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
541 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
542 else
543 KV_LOCAL=
544 fi
498 545
499 # For things like git that can append extra stuff: 546 # KV_LOCAL currently contains the full release; discard the first bits.
500 [ -e ${KV_DIR}/scripts/setlocalversion ] && 547 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
501 linux_chkconfig_builtin LOCALVERSION_AUTO && 548
502 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 549 # If the updated local version was not changed, the tree is not prepared.
550 # Clear out KV_LOCAL in that case.
551 # TODO: this does not detect a change in the localversion part between
552 # kernel.release and the value that would be generated.
553 if [ "$KV_LOCAL" = "$tmplocal" ]; then
554 KV_LOCAL=
555 else
556 KV_LOCAL=$tmplocal
503 fi 557 fi
504 558
505 # And we should set KV_FULL to the full expanded version 559 # And we should set KV_FULL to the full expanded version
506 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 560 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
507 561
516# It gets the version of the current running kernel and the result is the same as get_version() if the 570# 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. 571# function can find the sources.
518get_running_version() { 572get_running_version() {
519 KV_FULL=$(uname -r) 573 KV_FULL=$(uname -r)
520 574
575 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
576 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
577 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
578 unset KV_FULL
579 get_version
580 return $?
521 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 581 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
522 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 582 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
523 unset KV_FULL 583 unset KV_FULL
524 get_version 584 get_version
525 return $? 585 return $?
526 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 586 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
529 get_version 589 get_version
530 return $? 590 return $?
531 else 591 else
532 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 592 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
533 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 593 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
534 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 594 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
535 KV_PATCH=${KV_PATCH//-*} 595 KV_PATCH=${KV_PATCH//-*}
536 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 596 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
537 && KV_EXTRA="-${KV_FULL#*-}"
538 fi 597 fi
539 return 0 598 return 0
599}
600
601# This next function is named with the eclass prefix to avoid conflicts with
602# some old versionator-like eclass functions.
603
604# @FUNCTION: linux-info_get_any_version
605# @DESCRIPTION:
606# This attempts to find the version of the sources, and otherwise falls back to
607# the version of the running kernel.
608linux-info_get_any_version() {
609 get_version
610 if [[ $? -ne 0 ]]; then
611 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
612 get_running_version
613 fi
540} 614}
541 615
542 616
543# ebuild check functions 617# ebuild check functions
544# --------------------------------------- 618# ---------------------------------------
588# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 662# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
589# the prefix ~ is not used) doesn't satisfy the directive. 663# the prefix ~ is not used) doesn't satisfy the directive.
590check_extra_config() { 664check_extra_config() {
591 local config negate die error reworkmodulenames 665 local config negate die error reworkmodulenames
592 local soft_errors_count=0 hard_errors_count=0 config_required=0 666 local soft_errors_count=0 hard_errors_count=0 config_required=0
667 # store the value of the QA check, because otherwise we won't catch usages
668 # after if check_extra_config is called AND other direct calls are done
669 # later.
670 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
593 671
594 # if we haven't determined the version yet, we need to 672 # if we haven't determined the version yet, we need to
595 get_version 673 linux-info_get_any_version
596 674
597 # Determine if we really need a .config. The only time when we don't need 675 # 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 "~". 676 # one is when all of the CONFIG_CHECK options are prefixed with "~".
599 for config in ${CONFIG_CHECK} 677 for config in ${CONFIG_CHECK}
600 do 678 do
608 # In the case where we don't require a .config, we can now bail out 686 # 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 687 # if the user has no .config as there is nothing to do. Otherwise
610 # code later will cause a failure due to missing .config. 688 # code later will cause a failure due to missing .config.
611 if ! linux_config_exists; then 689 if ! linux_config_exists; then
612 ewarn "Unable to check for the following kernel config options due" 690 ewarn "Unable to check for the following kernel config options due"
613 ewarn "to absence of any configured kernel sources:" 691 ewarn "to absence of any configured kernel sources or compiled"
692 ewarn "config:"
614 for config in ${CONFIG_CHECK}; do 693 for config in ${CONFIG_CHECK}; do
694 local_error="ERROR_${config#\~}"
695 msg="${!local_error}"
696 if [[ "x${msg}" == "x" ]]; then
697 local_error="WARNING_${config#\~}"
698 msg="${!local_error}"
699 fi
615 ewarn " - ${config#\~}" 700 ewarn " - ${config#\~}${msg:+ - }${msg}"
616 done 701 done
617 ewarn "You're on your own to make sure they are set if needed." 702 ewarn "You're on your own to make sure they are set if needed."
703 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
618 return 0 704 return 0
619 fi 705 fi
620 else 706 else
621 require_configured_kernel 707 require_configured_kernel
622 fi 708 fi
699 if [[ ${hard_errors_count} > 0 ]]; then 785 if [[ ${hard_errors_count} > 0 ]]; then
700 eerror "Please check to make sure these options are set correctly." 786 eerror "Please check to make sure these options are set correctly."
701 eerror "Failure to do so may cause unexpected problems." 787 eerror "Failure to do so may cause unexpected problems."
702 eerror "Once you have satisfied these options, please try merging" 788 eerror "Once you have satisfied these options, please try merging"
703 eerror "this package again." 789 eerror "this package again."
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
704 die "Incorrect kernel configuration options" 791 die "Incorrect kernel configuration options"
705 elif [[ ${soft_errors_count} > 0 ]]; then 792 elif [[ ${soft_errors_count} > 0 ]]; then
706 ewarn "Please check to make sure these options are set correctly." 793 ewarn "Please check to make sure these options are set correctly."
707 ewarn "Failure to do so may cause unexpected problems." 794 ewarn "Failure to do so may cause unexpected problems."
708 else 795 else
709 eend 0 796 eend 0
710 fi 797 fi
798 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
711} 799}
712 800
713check_zlibinflate() { 801check_zlibinflate() {
714 # if we haven't determined the version yet, we need to 802 # if we haven't determined the version yet, we need to
715 require_configured_kernel 803 require_configured_kernel
786# @FUNCTION: linux-info_pkg_setup 874# @FUNCTION: linux-info_pkg_setup
787# @DESCRIPTION: 875# @DESCRIPTION:
788# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 876# 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) 877# to support the options specified in CONFIG_CHECK (if not null)
790linux-info_pkg_setup() { 878linux-info_pkg_setup() {
791 get_version 879 linux-info_get_any_version
792 if [[ $rc -ne 0 ]]; then
793 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
794 get_running_version
795 fi
796 880
797 if kernel_is 2 4; then 881 if kernel_is 2 4; then
798 if [ "$( gcc-major-version )" -eq "4" ] ; then 882 if [ "$( gcc-major-version )" -eq "4" ] ; then
799 echo 883 echo
800 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 884 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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