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Revision 1.71 Revision 1.101
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2013 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 1.71 2009/09/08 12:34:21 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.101 2013/09/29 02:36:17 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
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
113DEPEND=""
114RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
117DEPEND="kernel_linux? ( virtual/linux-sources )"
118 113
119# Overwritable environment Var's 114# Overwritable environment Var's
120# --------------------------------------- 115# ---------------------------------------
121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 116KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
122 117
153 esac 148 esac
154 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 149 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
155} 150}
156 151
157qeinfo() { qout einfo "${@}" ; } 152qeinfo() { qout einfo "${@}" ; }
153qewarn() { qout ewarn "${@}" ; }
158qeerror() { qout eerror "${@}" ; } 154qeerror() { qout eerror "${@}" ; }
159 155
160# File Functions 156# File Functions
161# --------------------------------------- 157# ---------------------------------------
162 158
166# @DESCRIPTION: 162# @DESCRIPTION:
167# It detects the value of the variable defined in the file configfile. This is 163# It detects the value of the variable defined in the file configfile. This is
168# done by including the configfile, and printing the variable with Make. 164# done by including the configfile, and printing the variable with Make.
169# It WILL break if your makefile has missing dependencies! 165# It WILL break if your makefile has missing dependencies!
170getfilevar() { 166getfilevar() {
171local ERROR basefname basedname myARCH="${ARCH}" 167 local ERROR basefname basedname myARCH="${ARCH}"
172 ERROR=0 168 ERROR=0
173 169
174 [ -z "${1}" ] && ERROR=1 170 [ -z "${1}" ] && ERROR=1
175 [ ! -f "${2}" ] && ERROR=1 171 [ ! -f "${2}" ] && ERROR=1
176 172
182 else 178 else
183 basefname="$(basename ${2})" 179 basefname="$(basename ${2})"
184 basedname="$(dirname ${2})" 180 basedname="$(dirname ${2})"
185 unset ARCH 181 unset ARCH
186 182
183 # We use nonfatal because we want the caller to take care of things #373151
184 [[ ${EAPI:-0} == [0123] ]] && nonfatal() { "$@"; }
187 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \ 185 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
188 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null 186 nonfatal emake -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
189 187
190 ARCH=${myARCH} 188 ARCH=${myARCH}
191 fi 189 fi
192} 190}
193 191
197# @DESCRIPTION: 195# @DESCRIPTION:
198# It detects the value of the variable defined in the file configfile. 196# It detects the value of the variable defined in the file configfile.
199# This is done with sed matching an expression only. If the variable is defined, 197# This is done with sed matching an expression only. If the variable is defined,
200# you will run into problems. See getfilevar for those cases. 198# you will run into problems. See getfilevar for those cases.
201getfilevar_noexec() { 199getfilevar_noexec() {
202 local ERROR basefname basedname mycat myARCH="${ARCH}" 200 local ERROR basefname basedname mycat myARCH="${ARCH}"
203 ERROR=0 201 ERROR=0
204 mycat='cat' 202 mycat='cat'
205 203
206 [ -z "${1}" ] && ERROR=1 204 [ -z "${1}" ] && ERROR=1
207 [ ! -f "${2}" ] && ERROR=1 205 [ ! -f "${2}" ] && ERROR=1
213 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 211 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
214 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 212 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
215 else 213 else
216 ${mycat} "${2}" | \ 214 ${mycat} "${2}" | \
217 sed -n \ 215 sed -n \
218 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 216 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
219 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 217 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
220 s,[[:space:]]*\$,,g ; 218 s,[[:space:]]*\$,,g ;
221 p 219 p
222 }" 220 }"
223 fi 221 fi
224} 222}
225 223
224# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
225# @INTERNAL
226# @DESCRIPTION:
227# This is only set if one of the linux_config_*exists functions has been called.
228# We use it for a QA warning that the check for a config has not been performed,
229# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
230# config is available at all.
231_LINUX_CONFIG_EXISTS_DONE=
232
233linux_config_qa_check() {
234 local f="$1"
235 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
236 ewarn "QA: You called $f before any linux_config_exists!"
237 ewarn "QA: The return value of $f will NOT guaranteed later!"
238 fi
239}
226 240
227# @FUNCTION: linux_config_src_exists 241# @FUNCTION: linux_config_src_exists
228# @RETURN: true or false 242# @RETURN: true or false
229# @DESCRIPTION: 243# @DESCRIPTION:
230# It returns true if .config exists in a build directory otherwise false 244# It returns true if .config exists in a build directory otherwise false
231linux_config_src_exists() { 245linux_config_src_exists() {
232 [ -s "${KV_OUT_DIR}/.config" ] 246 export _LINUX_CONFIG_EXISTS_DONE=1
247 [[ -n ${KV_OUT_DIR} && -s ${KV_OUT_DIR}/.config ]]
233} 248}
234 249
235# @FUNCTION: linux_config_bin_exists 250# @FUNCTION: linux_config_bin_exists
236# @RETURN: true or false 251# @RETURN: true or false
237# @DESCRIPTION: 252# @DESCRIPTION:
238# It returns true if .config exists in /proc, otherwise false 253# It returns true if .config exists in /proc, otherwise false
239linux_config_bin_exists() { 254linux_config_bin_exists() {
255 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "/proc/config.gz" ] 256 [[ -s /proc/config.gz ]]
241} 257}
242 258
243# @FUNCTION: linux_config_exists 259# @FUNCTION: linux_config_exists
244# @RETURN: true or false 260# @RETURN: true or false
245# @DESCRIPTION: 261# @DESCRIPTION:
247# 263#
248# This function MUST be checked before using any of the linux_chkconfig_* 264# This function MUST be checked before using any of the linux_chkconfig_*
249# functions. 265# functions.
250linux_config_exists() { 266linux_config_exists() {
251 linux_config_src_exists || linux_config_bin_exists 267 linux_config_src_exists || linux_config_bin_exists
268}
269
270# @FUNCTION: linux_config_path
271# @DESCRIPTION:
272# Echo the name of the config file to use. If none are found,
273# then return false.
274linux_config_path() {
275 if linux_config_src_exists; then
276 echo "${KV_OUT_DIR}/.config"
277 elif linux_config_bin_exists; then
278 echo "/proc/config.gz"
279 else
280 return 1
281 fi
252} 282}
253 283
254# @FUNCTION: require_configured_kernel 284# @FUNCTION: require_configured_kernel
255# @DESCRIPTION: 285# @DESCRIPTION:
256# This function verifies that the current kernel is configured (it checks against the existence of .config) 286# This function verifies that the current kernel is configured (it checks against the existence of .config)
271# @DESCRIPTION: 301# @DESCRIPTION:
272# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 302# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
273# If linux_config_exists returns false, the results of this are UNDEFINED. You 303# If linux_config_exists returns false, the results of this are UNDEFINED. You
274# MUST call linux_config_exists first. 304# MUST call linux_config_exists first.
275linux_chkconfig_present() { 305linux_chkconfig_present() {
276local RESULT 306 linux_config_qa_check linux_chkconfig_present
277 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 307 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == [my] ]]
278 local config
279 config="${KV_OUT_DIR}/.config"
280 [ ! -f "${config}" ] && config="/proc/config.gz"
281 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
282 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
283} 308}
284 309
285# @FUNCTION: linux_chkconfig_module 310# @FUNCTION: linux_chkconfig_module
286# @USAGE: option 311# @USAGE: option
287# @RETURN: true or false 312# @RETURN: true or false
288# @DESCRIPTION: 313# @DESCRIPTION:
289# It checks that CONFIG_<option>=m is present in the current kernel .config 314# It checks that CONFIG_<option>=m is present in the current kernel .config
290# If linux_config_exists returns false, the results of this are UNDEFINED. You 315# If linux_config_exists returns false, the results of this are UNDEFINED. You
291# MUST call linux_config_exists first. 316# MUST call linux_config_exists first.
292linux_chkconfig_module() { 317linux_chkconfig_module() {
293local RESULT 318 linux_config_qa_check linux_chkconfig_module
294 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 319 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == m ]]
295 local config
296 config="${KV_OUT_DIR}/.config"
297 [ ! -f "${config}" ] && config="/proc/config.gz"
298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
299 [ "${RESULT}" = "m" ] && return 0 || return 1
300} 320}
301 321
302# @FUNCTION: linux_chkconfig_builtin 322# @FUNCTION: linux_chkconfig_builtin
303# @USAGE: option 323# @USAGE: option
304# @RETURN: true or false 324# @RETURN: true or false
305# @DESCRIPTION: 325# @DESCRIPTION:
306# It checks that CONFIG_<option>=y is present in the current kernel .config 326# It checks that CONFIG_<option>=y is present in the current kernel .config
307# If linux_config_exists returns false, the results of this are UNDEFINED. You 327# If linux_config_exists returns false, the results of this are UNDEFINED. You
308# MUST call linux_config_exists first. 328# MUST call linux_config_exists first.
309linux_chkconfig_builtin() { 329linux_chkconfig_builtin() {
310local RESULT 330 linux_config_qa_check linux_chkconfig_builtin
311 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 331 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == y ]]
312 local config
313 config="${KV_OUT_DIR}/.config"
314 [ ! -f "${config}" ] && config="/proc/config.gz"
315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
316 [ "${RESULT}" = "y" ] && return 0 || return 1
317} 332}
318 333
319# @FUNCTION: linux_chkconfig_string 334# @FUNCTION: linux_chkconfig_string
320# @USAGE: option 335# @USAGE: option
321# @RETURN: CONFIG_<option> 336# @RETURN: CONFIG_<option>
322# @DESCRIPTION: 337# @DESCRIPTION:
323# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 338# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
324# If linux_config_exists returns false, the results of this are UNDEFINED. You 339# If linux_config_exists returns false, the results of this are UNDEFINED. You
325# MUST call linux_config_exists first. 340# MUST call linux_config_exists first.
326linux_chkconfig_string() { 341linux_chkconfig_string() {
327 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 342 linux_config_qa_check linux_chkconfig_string
328 local config
329 config="${KV_OUT_DIR}/.config"
330 [ ! -f "${config}" ] && config="/proc/config.gz"
331 getfilevar_noexec "CONFIG_${1}" "${config}" 343 getfilevar_noexec "CONFIG_$1" "$(linux_config_path)"
332} 344}
333 345
334# Versioning Functions 346# Versioning Functions
335# --------------------------------------- 347# ---------------------------------------
336 348
348# kernel_is 2 6 returns true 360# kernel_is 2 6 returns true
349# kernel_is 2 6 8 returns false 361# kernel_is 2 6 8 returns false
350# kernel_is 2 6 9 returns true 362# kernel_is 2 6 9 returns true
351# @CODE 363# @CODE
352 364
353# got the jist yet? 365# Note: duplicated in kernel-2.eclass
354
355kernel_is() { 366kernel_is() {
356 # if we haven't determined the version yet, we need to. 367 # if we haven't determined the version yet, we need to.
357 linux-info_get_any_version 368 linux-info_get_any_version
358 369
370 # Now we can continue
359 local operator test value x=0 y=0 z=0 371 local operator test value
360 372
361 case ${1} in 373 case ${1#-} in
362 -lt|lt) operator="-lt"; shift;; 374 lt) operator="-lt"; shift;;
363 -gt|gt) operator="-gt"; shift;; 375 gt) operator="-gt"; shift;;
364 -le|le) operator="-le"; shift;; 376 le) operator="-le"; shift;;
365 -ge|ge) operator="-ge"; shift;; 377 ge) operator="-ge"; shift;;
366 -eq|eq) operator="-eq"; shift;; 378 eq) operator="-eq"; shift;;
367 *) operator="-eq";; 379 *) operator="-eq";;
368 esac 380 esac
369
370 for x in ${@}; do
371 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
372 value="${value}${x}"
373 z=$((${z} + 1))
374
375 case ${z} in
376 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
377 test="${test}${KV_MAJOR}";;
378 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
379 test="${test}${KV_MINOR}";;
380 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
381 test="${test}${KV_PATCH}";;
382 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 381 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
383 esac 382
384 done 383 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
385 384 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
386 [ ${test} ${operator} ${value} ] && return 0 || return 1 385 [ ${test} ${operator} ${value} ]
387} 386}
388 387
389get_localversion() { 388get_localversion() {
390 local lv_list i x 389 local lv_list i x
391 390
399 done 398 done
400 x=${x/ /} 399 x=${x/ /}
401 echo ${x} 400 echo ${x}
402} 401}
403 402
403# Check if the Makefile is valid for direct parsing.
404# Check status results:
405# - PASS, use 'getfilevar' to extract values
406# - FAIL, use 'getfilevar_noexec' to extract values
407# The check may fail if:
408# - make is not present
409# - corruption exists in the kernel makefile
410get_makefile_extract_function() {
411 local a='' b='' mkfunc='getfilevar'
412 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
413 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
414 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
415 echo "${mkfunc}"
416}
417
404# internal variable, so we know to only print the warning once 418# internal variable, so we know to only print the warning once
405get_version_warning_done= 419get_version_warning_done=
406 420
407# @FUNCTION: get_version 421# @FUNCTION: get_version
408# @DESCRIPTION: 422# @DESCRIPTION:
413# 427#
414# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 428# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
415# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the 429# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
416# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build). 430# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
417get_version() { 431get_version() {
418 local kbuild_output 432 local mkfunc tmplocal
419 433
420 # no need to execute this twice assuming KV_FULL is populated. 434 # no need to execute this twice assuming KV_FULL is populated.
421 # we can force by unsetting KV_FULL 435 # we can force by unsetting KV_FULL
422 [ -n "${KV_FULL}" ] && return 0 436 [ -n "${KV_FULL}" ] && return 0
423 437
446 fi 460 fi
447 fi 461 fi
448 return 1 462 return 1
449 fi 463 fi
450 464
465 # See if the kernel dir is actually an output dir. #454294
466 if [ -z "${KBUILD_OUTPUT}" -a -L "${KERNEL_DIR}/source" ]; then
467 KBUILD_OUTPUT=${KERNEL_DIR}
468 KERNEL_DIR=$(readlink -f "${KERNEL_DIR}/source")
469 KV_DIR=${KERNEL_DIR}
470 fi
471
451 if [ -z "${get_version_warning_done}" ]; then 472 if [ -z "${get_version_warning_done}" ]; then
452 qeinfo "Found kernel source directory:" 473 qeinfo "Found kernel source directory:"
453 qeinfo " ${KV_DIR}" 474 qeinfo " ${KV_DIR}"
454 fi 475 fi
455 476
465 486
466 # OK so now we know our sources directory, but they might be using 487 # OK so now we know our sources directory, but they might be using
467 # KBUILD_OUTPUT, and we need this for .config and localversions-* 488 # KBUILD_OUTPUT, and we need this for .config and localversions-*
468 # so we better find it eh? 489 # so we better find it eh?
469 # do we pass KBUILD_OUTPUT on the CLI? 490 # do we pass KBUILD_OUTPUT on the CLI?
470 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 491 local OUTPUT_DIR=${KBUILD_OUTPUT}
492
493 # keep track of it
494 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
495
496 # Decide the function used to extract makefile variables.
497 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
471 498
472 # And if we didn't pass it, we can take a nosey in the Makefile 499 # And if we didn't pass it, we can take a nosey in the Makefile
473 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 500 if [[ -z ${OUTPUT_DIR} ]]; then
474 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 501 OUTPUT_DIR=$(${mkfunc} KBUILD_OUTPUT "${KERNEL_MAKEFILE}")
502 fi
475 503
476 # And contrary to existing functions I feel we shouldn't trust the 504 # And contrary to existing functions I feel we shouldn't trust the
477 # directory name to find version information as this seems insane. 505 # directory name to find version information as this seems insane.
478 # so we parse ${KV_DIR}/Makefile 506 # so we parse ${KERNEL_MAKEFILE}
479 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 507 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
480 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 508 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
481 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 509 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
482 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 510 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
483 511
484 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 512 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
485 then 513 then
486 if [ -z "${get_version_warning_done}" ]; then 514 if [ -z "${get_version_warning_done}" ]; then
487 get_version_warning_done=1 515 get_version_warning_done=1
493 521
494 # and in newer versions we can also pull LOCALVERSION if it is set. 522 # and in newer versions we can also pull LOCALVERSION if it is set.
495 # but before we do this, we need to find if we use a different object directory. 523 # but before we do this, we need to find if we use a different object directory.
496 # This *WILL* break if the user is using localversions, but we assume it was 524 # This *WILL* break if the user is using localversions, but we assume it was
497 # caught before this if they are. 525 # caught before this if they are.
498 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
499 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 526 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
500 527
501 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 528 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
502 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 529 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
503 if [ -n "${KV_OUT_DIR}" ]; 530 if [ -n "${KV_OUT_DIR}" ];
504 then 531 then
505 qeinfo "Found kernel object directory:" 532 qeinfo "Found kernel object directory:"
506 qeinfo " ${KV_OUT_DIR}" 533 qeinfo " ${KV_OUT_DIR}"
507
508 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
509 fi 534 fi
510 # and if we STILL have not got it, then we better just set it to KV_DIR 535 # and if we STILL have not got it, then we better just set it to KV_DIR
511 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 536 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
512 537
513 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 538 # Grab the kernel release from the output directory.
514 if linux_config_src_exists; then 539 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
515 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 540 # this function.
516 KV_LOCAL="${KV_LOCAL//\"/}" 541 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
542 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
543 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
544 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
545 else
546 KV_LOCAL=
547 fi
517 548
518 # For things like git that can append extra stuff: 549 # KV_LOCAL currently contains the full release; discard the first bits.
519 [ -e ${KV_DIR}/scripts/setlocalversion ] && 550 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
520 linux_chkconfig_builtin LOCALVERSION_AUTO && 551
521 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 552 # If the updated local version was not changed, the tree is not prepared.
553 # Clear out KV_LOCAL in that case.
554 # TODO: this does not detect a change in the localversion part between
555 # kernel.release and the value that would be generated.
556 if [ "$KV_LOCAL" = "$tmplocal" ]; then
557 KV_LOCAL=
558 else
559 KV_LOCAL=$tmplocal
522 fi 560 fi
523 561
524 # And we should set KV_FULL to the full expanded version 562 # And we should set KV_FULL to the full expanded version
525 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 563 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
526 564
535# It gets the version of the current running kernel and the result is the same as get_version() if the 573# It gets the version of the current running kernel and the result is the same as get_version() if the
536# function can find the sources. 574# function can find the sources.
537get_running_version() { 575get_running_version() {
538 KV_FULL=$(uname -r) 576 KV_FULL=$(uname -r)
539 577
578 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
579 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
580 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
581 unset KV_FULL
582 get_version
583 return $?
540 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 584 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
541 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 585 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
542 unset KV_FULL 586 unset KV_FULL
543 get_version 587 get_version
544 return $? 588 return $?
545 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 589 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
546 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 590 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
547 unset KV_FULL 591 unset KV_FULL
548 get_version 592 get_version
549 return $? 593 return $?
550 else 594 else
595 # This handles a variety of weird kernel versions. Make sure to update
596 # tests/linux-info:get_running_version.sh if you want to change this.
597 local kv_full=${KV_FULL//[-+_]*}
551 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 598 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
552 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 599 KV_MINOR=$(get_version_component_range 2 ${kv_full})
553 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 600 KV_PATCH=$(get_version_component_range 3 ${kv_full})
554 KV_PATCH=${KV_PATCH//-*} 601 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
555 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 602 : ${KV_PATCH:=0}
556 && KV_EXTRA="-${KV_FULL#*-}"
557 fi 603 fi
558 return 0 604 return 0
559} 605}
560 606
561# This next function is named with the eclass prefix to avoid conflicts with 607# This next function is named with the eclass prefix to avoid conflicts with
564# @FUNCTION: linux-info_get_any_version 610# @FUNCTION: linux-info_get_any_version
565# @DESCRIPTION: 611# @DESCRIPTION:
566# This attempts to find the version of the sources, and otherwise falls back to 612# This attempts to find the version of the sources, and otherwise falls back to
567# the version of the running kernel. 613# the version of the running kernel.
568linux-info_get_any_version() { 614linux-info_get_any_version() {
569 get_version 615 get_version
570 if [[ $? -ne 0 ]]; then 616 if [[ $? -ne 0 ]]; then
571 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version" 617 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
572 get_running_version 618 get_running_version
573 fi 619 fi
574} 620}
575 621
576 622
577# ebuild check functions 623# ebuild check functions
583check_kernel_built() { 629check_kernel_built() {
584 # if we haven't determined the version yet, we need to 630 # if we haven't determined the version yet, we need to
585 require_configured_kernel 631 require_configured_kernel
586 get_version 632 get_version
587 633
634 local versionh_path
635 if kernel_is -ge 3 7; then
636 versionh_path="include/generated/uapi/linux/version.h"
637 else
638 versionh_path="include/linux/version.h"
639 fi
640
588 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 641 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
589 then 642 then
590 eerror "These sources have not yet been prepared." 643 eerror "These sources have not yet been prepared."
591 eerror "We cannot build against an unprepared tree." 644 eerror "We cannot build against an unprepared tree."
592 eerror "To resolve this, please type the following:" 645 eerror "To resolve this, please type the following:"
593 eerror 646 eerror
606check_modules_supported() { 659check_modules_supported() {
607 # if we haven't determined the version yet, we need too. 660 # if we haven't determined the version yet, we need too.
608 require_configured_kernel 661 require_configured_kernel
609 get_version 662 get_version
610 663
611 if ! linux_chkconfig_builtin "MODULES" 664 if ! linux_chkconfig_builtin "MODULES"; then
612 then
613 eerror "These sources do not support loading external modules." 665 eerror "These sources do not support loading external modules."
614 eerror "to be able to use this module please enable \"Loadable modules support\"" 666 eerror "to be able to use this module please enable \"Loadable modules support\""
615 eerror "in your kernel, recompile and then try merging this module again." 667 eerror "in your kernel, recompile and then try merging this module again."
616 die "No support for external modules in ${KV_FULL} config" 668 die "No support for external modules in ${KV_FULL} config"
617 fi 669 fi
620# @FUNCTION: check_extra_config 672# @FUNCTION: check_extra_config
621# @DESCRIPTION: 673# @DESCRIPTION:
622# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 674# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
623# the prefix ~ is not used) doesn't satisfy the directive. 675# the prefix ~ is not used) doesn't satisfy the directive.
624check_extra_config() { 676check_extra_config() {
625 local config negate die error reworkmodulenames 677 local config negate die error reworkmodulenames
626 local soft_errors_count=0 hard_errors_count=0 config_required=0 678 local soft_errors_count=0 hard_errors_count=0 config_required=0
679 # store the value of the QA check, because otherwise we won't catch usages
680 # after if check_extra_config is called AND other direct calls are done
681 # later.
682 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
627 683
628 # if we haven't determined the version yet, we need to 684 # if we haven't determined the version yet, we need to
629 linux-info_get_any_version 685 linux-info_get_any_version
630 686
631 # Determine if we really need a .config. The only time when we don't need 687 # Determine if we really need a .config. The only time when we don't need
632 # one is when all of the CONFIG_CHECK options are prefixed with "~". 688 # one is when all of the CONFIG_CHECK options are prefixed with "~".
633 for config in ${CONFIG_CHECK} 689 for config in ${CONFIG_CHECK}; do
634 do
635 if [[ "${config:0:1}" != "~" ]]; then 690 if [[ "${config:0:1}" != "~" ]]; then
636 config_required=1 691 config_required=1
637 break 692 break
638 fi 693 fi
639 done 694 done
645 if ! linux_config_exists; then 700 if ! linux_config_exists; then
646 ewarn "Unable to check for the following kernel config options due" 701 ewarn "Unable to check for the following kernel config options due"
647 ewarn "to absence of any configured kernel sources or compiled" 702 ewarn "to absence of any configured kernel sources or compiled"
648 ewarn "config:" 703 ewarn "config:"
649 for config in ${CONFIG_CHECK}; do 704 for config in ${CONFIG_CHECK}; do
705 local_error="ERROR_${config#\~}"
706 msg="${!local_error}"
707 if [[ "x${msg}" == "x" ]]; then
708 local_error="WARNING_${config#\~}"
709 msg="${!local_error}"
710 fi
650 ewarn " - ${config#\~}" 711 ewarn " - ${config#\~}${msg:+ - }${msg}"
651 done 712 done
652 ewarn "You're on your own to make sure they are set if needed." 713 ewarn "You're on your own to make sure they are set if needed."
714 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
653 return 0 715 return 0
654 fi 716 fi
655 else 717 else
656 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 718 require_configured_kernel
657 fi 719 fi
658 720
659 einfo "Checking for suitable kernel configuration options..." 721 einfo "Checking for suitable kernel configuration options..."
660 722
661 for config in ${CONFIG_CHECK} 723 for config in ${CONFIG_CHECK}
734 if [[ ${hard_errors_count} > 0 ]]; then 796 if [[ ${hard_errors_count} > 0 ]]; then
735 eerror "Please check to make sure these options are set correctly." 797 eerror "Please check to make sure these options are set correctly."
736 eerror "Failure to do so may cause unexpected problems." 798 eerror "Failure to do so may cause unexpected problems."
737 eerror "Once you have satisfied these options, please try merging" 799 eerror "Once you have satisfied these options, please try merging"
738 eerror "this package again." 800 eerror "this package again."
801 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
739 die "Incorrect kernel configuration options" 802 die "Incorrect kernel configuration options"
740 elif [[ ${soft_errors_count} > 0 ]]; then 803 elif [[ ${soft_errors_count} > 0 ]]; then
741 ewarn "Please check to make sure these options are set correctly." 804 ewarn "Please check to make sure these options are set correctly."
742 ewarn "Failure to do so may cause unexpected problems." 805 ewarn "Failure to do so may cause unexpected problems."
743 else 806 else
744 eend 0 807 eend 0
745 fi 808 fi
809 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
746} 810}
747 811
748check_zlibinflate() { 812check_zlibinflate() {
749 # if we haven't determined the version yet, we need to 813 # if we haven't determined the version yet, we need to
750 require_configured_kernel 814 require_configured_kernel

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