/[gentoo-x86]/eclass/linux-info.eclass
Gentoo

Diff of /eclass/linux-info.eclass

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

Revision 1.59 Revision 1.89
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 1.59 2009/03/27 20:13:04 loki_val Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.89 2011/08/18 14:58:57 vapier 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 :)
11# @MAINTAINER: 11# @MAINTAINER:
12# kernel-misc@gentoo.org 12# kernel-misc@gentoo.org
13# @BLURB: eclass used for accessing kernel related information 13# @BLURB: eclass used for accessing kernel related information
14# @DESCRIPTION: 14# @DESCRIPTION:
15# This eclass is used as a central eclass for accessing kernel 15# This eclass is used as a central eclass for accessing kernel
16# related information for sources already installed. 16# related information for source or binary already installed.
17# It is vital for linux-mod.eclass to function correctly, and is split 17# It is vital for linux-mod.eclass to function correctly, and is split
18# out so that any ebuild behaviour "templates" are abstracted out 18# out so that any ebuild behaviour "templates" are abstracted out
19# using additional eclasses. 19# using additional eclasses.
20#
21# "kernel config" in this file means:
22# 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 24
21# A Couple of env vars are available to effect usage of this eclass 25# A Couple of env vars are available to effect usage of this eclass
22# These are as follows: 26# These are as follows:
23 27
24# @ECLASS-VARIABLE: KERNEL_DIR 28# @ECLASS-VARIABLE: KERNEL_DIR
37# prepending it with an exclamation mark (!). 41# prepending it with an exclamation mark (!).
38# 42#
39# e.g.: CONFIG_CHECK="!MTRR" 43# e.g.: CONFIG_CHECK="!MTRR"
40# 44#
41# To simply warn about a missing option, prepend a '~'. 45# To simply warn about a missing option, prepend a '~'.
46# It may be combined with '!'.
47#
48# 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
50# without the option.
51#
52# This is to allow usage of binary kernels, and minimal systems without kernel
53# sources.
42 54
43# @ECLASS-VARIABLE: ERROR_<CFG> 55# @ECLASS-VARIABLE: ERROR_<CFG>
44# @DESCRIPTION: 56# @DESCRIPTION:
45# A string containing the error message to display when the check against CONFIG_CHECK 57# A string containing the error message to display when the check against CONFIG_CHECK
46# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK. 58# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
92# And to ensure all the weirdness with crosscompile 104# And to ensure all the weirdness with crosscompile
93inherit toolchain-funcs versionator 105inherit toolchain-funcs versionator
94 106
95EXPORT_FUNCTIONS pkg_setup 107EXPORT_FUNCTIONS pkg_setup
96 108
97DEPEND="kernel_linux? ( virtual/linux-sources )" 109DEPEND=""
98RDEPEND="" 110RDEPEND=""
99 111
100# Overwritable environment Var's 112# Overwritable environment Var's
101# --------------------------------------- 113# ---------------------------------------
102KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 114KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
134 esac 146 esac
135 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 147 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
136} 148}
137 149
138qeinfo() { qout einfo "${@}" ; } 150qeinfo() { qout einfo "${@}" ; }
151qewarn() { qout ewarn "${@}" ; }
139qeerror() { qout eerror "${@}" ; } 152qeerror() { qout eerror "${@}" ; }
140 153
141# File Functions 154# File Functions
142# --------------------------------------- 155# ---------------------------------------
143 156
144# @FUNCTION: getfilevar 157# @FUNCTION: getfilevar
145# @USAGE: variable configfile 158# @USAGE: variable configfile
146# @RETURN: the value of the variable 159# @RETURN: the value of the variable
147# @DESCRIPTION: 160# @DESCRIPTION:
148# It detects the value of the variable defined in the file configfile 161# It detects the value of the variable defined in the file configfile. This is
162# done by including the configfile, and printing the variable with Make.
163# It WILL break if your makefile has missing dependencies!
149getfilevar() { 164getfilevar() {
150local ERROR basefname basedname myARCH="${ARCH}" 165local ERROR basefname basedname myARCH="${ARCH}"
151 ERROR=0 166 ERROR=0
152 167
153 [ -z "${1}" ] && ERROR=1 168 [ -z "${1}" ] && ERROR=1
168 183
169 ARCH=${myARCH} 184 ARCH=${myARCH}
170 fi 185 fi
171} 186}
172 187
188# @FUNCTION: getfilevar_noexec
189# @USAGE: variable configfile
190# @RETURN: the value of the variable
191# @DESCRIPTION:
192# It detects the value of the variable defined in the file configfile.
193# This is done with sed matching an expression only. If the variable is defined,
194# you will run into problems. See getfilevar for those cases.
195getfilevar_noexec() {
196 local ERROR basefname basedname mycat myARCH="${ARCH}"
197 ERROR=0
198 mycat='cat'
199
200 [ -z "${1}" ] && ERROR=1
201 [ ! -f "${2}" ] && ERROR=1
202 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
203
204 if [ "${ERROR}" = 1 ]
205 then
206 echo -e "\n"
207 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
208 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
209 else
210 ${mycat} "${2}" | \
211 sed -n \
212 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
213 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
214 s,[[:space:]]*\$,,g ;
215 p
216 }"
217 fi
218}
219
220# @PRIVATE-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
221# @DESCRIPTION:
222# This is only set if one of the linux_config_*exists functions has been called.
223# We use it for a QA warning that the check for a config has not been performed,
224# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
225# config is available at all.
226_LINUX_CONFIG_EXISTS_DONE=
227
228linux_config_qa_check() {
229 local f="$1"
230 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
231 ewarn "QA: You called $f before any linux_config_exists!"
232 ewarn "QA: The return value of $f will NOT guaranteed later!"
233 fi
234}
235
236# @FUNCTION: linux_config_src_exists
237# @RETURN: true or false
238# @DESCRIPTION:
239# It returns true if .config exists in a build directory otherwise false
240linux_config_src_exists() {
241 export _LINUX_CONFIG_EXISTS_DONE=1
242 [ -s "${KV_OUT_DIR}/.config" ]
243}
244
245# @FUNCTION: linux_config_bin_exists
246# @RETURN: true or false
247# @DESCRIPTION:
248# It returns true if .config exists in /proc, otherwise false
249linux_config_bin_exists() {
250 export _LINUX_CONFIG_EXISTS_DONE=1
251 [ -s "/proc/config.gz" ]
252}
173 253
174# @FUNCTION: linux_config_exists 254# @FUNCTION: linux_config_exists
175# @RETURN: true or false 255# @RETURN: true or false
176# @DESCRIPTION: 256# @DESCRIPTION:
177# It returns true if .config exists otherwise false 257# It returns true if .config exists otherwise false
258#
259# This function MUST be checked before using any of the linux_chkconfig_*
260# functions.
178linux_config_exists() { 261linux_config_exists() {
179 [ -s "${KV_OUT_DIR}/.config" ] 262 linux_config_src_exists || linux_config_bin_exists
180} 263}
181 264
182# @FUNCTION: require_configured_kernel 265# @FUNCTION: require_configured_kernel
183# @DESCRIPTION: 266# @DESCRIPTION:
184# This function verifies that the current kernel is configured (it checks against the existence of .config) 267# This function verifies that the current kernel is configured (it checks against the existence of .config)
185# otherwise it dies. 268# otherwise it dies.
186require_configured_kernel() { 269require_configured_kernel() {
187 if ! linux_config_exists; then 270 if ! linux_config_src_exists; then
188 qeerror "Could not find a usable .config in the kernel source directory." 271 qeerror "Could not find a usable .config in the kernel source directory."
189 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources." 272 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
190 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that" 273 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
191 qeerror "it points to the necessary object directory so that it might find .config." 274 qeerror "it points to the necessary object directory so that it might find .config."
192 die "Kernel not configured; no .config found in ${KV_OUT_DIR}" 275 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
196# @FUNCTION: linux_chkconfig_present 279# @FUNCTION: linux_chkconfig_present
197# @USAGE: option 280# @USAGE: option
198# @RETURN: true or false 281# @RETURN: true or false
199# @DESCRIPTION: 282# @DESCRIPTION:
200# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 283# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
284# If linux_config_exists returns false, the results of this are UNDEFINED. You
285# MUST call linux_config_exists first.
201linux_chkconfig_present() { 286linux_chkconfig_present() {
287 linux_config_qa_check linux_chkconfig_present
202local RESULT 288 local RESULT
203 require_configured_kernel 289 local config
290 config="${KV_OUT_DIR}/.config"
291 [ ! -f "${config}" ] && config="/proc/config.gz"
204 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 292 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
205 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 293 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
206} 294}
207 295
208# @FUNCTION: linux_chkconfig_module 296# @FUNCTION: linux_chkconfig_module
209# @USAGE: option 297# @USAGE: option
210# @RETURN: true or false 298# @RETURN: true or false
211# @DESCRIPTION: 299# @DESCRIPTION:
212# It checks that CONFIG_<option>=m is present in the current kernel .config 300# It checks that CONFIG_<option>=m is present in the current kernel .config
301# If linux_config_exists returns false, the results of this are UNDEFINED. You
302# MUST call linux_config_exists first.
213linux_chkconfig_module() { 303linux_chkconfig_module() {
304 linux_config_qa_check linux_chkconfig_module
214local RESULT 305 local RESULT
215 require_configured_kernel 306 local config
307 config="${KV_OUT_DIR}/.config"
308 [ ! -f "${config}" ] && config="/proc/config.gz"
216 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 309 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
217 [ "${RESULT}" = "m" ] && return 0 || return 1 310 [ "${RESULT}" = "m" ] && return 0 || return 1
218} 311}
219 312
220# @FUNCTION: linux_chkconfig_builtin 313# @FUNCTION: linux_chkconfig_builtin
221# @USAGE: option 314# @USAGE: option
222# @RETURN: true or false 315# @RETURN: true or false
223# @DESCRIPTION: 316# @DESCRIPTION:
224# It checks that CONFIG_<option>=y is present in the current kernel .config 317# It checks that CONFIG_<option>=y is present in the current kernel .config
318# If linux_config_exists returns false, the results of this are UNDEFINED. You
319# MUST call linux_config_exists first.
225linux_chkconfig_builtin() { 320linux_chkconfig_builtin() {
321 linux_config_qa_check linux_chkconfig_builtin
226local RESULT 322 local RESULT
227 require_configured_kernel 323 local config
324 config="${KV_OUT_DIR}/.config"
325 [ ! -f "${config}" ] && config="/proc/config.gz"
228 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 326 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
229 [ "${RESULT}" = "y" ] && return 0 || return 1 327 [ "${RESULT}" = "y" ] && return 0 || return 1
230} 328}
231 329
232# @FUNCTION: linux_chkconfig_string 330# @FUNCTION: linux_chkconfig_string
233# @USAGE: option 331# @USAGE: option
234# @RETURN: CONFIG_<option> 332# @RETURN: CONFIG_<option>
235# @DESCRIPTION: 333# @DESCRIPTION:
236# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 334# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
335# If linux_config_exists returns false, the results of this are UNDEFINED. You
336# MUST call linux_config_exists first.
237linux_chkconfig_string() { 337linux_chkconfig_string() {
238 require_configured_kernel 338 linux_config_qa_check linux_chkconfig_string
339 local config
340 config="${KV_OUT_DIR}/.config"
341 [ ! -f "${config}" ] && config="/proc/config.gz"
239 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 getfilevar_noexec "CONFIG_${1}" "${config}"
240} 343}
241 344
242# Versioning Functions 345# Versioning Functions
243# --------------------------------------- 346# ---------------------------------------
244 347
260 363
261# got the jist yet? 364# got the jist yet?
262 365
263kernel_is() { 366kernel_is() {
264 # if we haven't determined the version yet, we need to. 367 # if we haven't determined the version yet, we need to.
265 get_version 368 linux-info_get_any_version
369
266 local operator test value x=0 y=0 z=0 370 local operator testagainst value x=0 y=0 z=0
267 371
268 case ${1} in 372 case ${1} in
269 lt) operator="-lt"; shift;; 373 -lt|lt) operator="-lt"; shift;;
270 gt) operator="-gt"; shift;; 374 -gt|gt) operator="-gt"; shift;;
271 le) operator="-le"; shift;; 375 -le|le) operator="-le"; shift;;
272 ge) operator="-ge"; shift;; 376 -ge|ge) operator="-ge"; shift;;
273 eq) operator="-eq"; shift;; 377 -eq|eq) operator="-eq"; shift;;
274 *) operator="-eq";; 378 *) operator="-eq";;
275 esac 379 esac
276 380
277 for x in ${@}; do 381 for x in ${@}; do
278 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 382 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
279 value="${value}${x}" 383 value="${value}${x}"
280 z=$((${z} + 1)) 384 z=$((${z} + 1))
281 385
282 case ${z} in 386 case ${z} in
283 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 387 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
284 test="${test}${KV_MAJOR}";; 388 testagainst="${testagainst}${KV_MAJOR}";;
285 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done; 389 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do testagainst="${testagainst}0"; done;
286 test="${test}${KV_MINOR}";; 390 testagainst="${testagainst}${KV_MINOR}";;
287 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 391 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do testagainst="${testagainst}0"; done;
288 test="${test}${KV_PATCH}";; 392 testagainst="${testagainst}${KV_PATCH}";;
289 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 393 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
290 esac 394 esac
291 done 395 done
292 396
293 [ ${test} ${operator} ${value} ] && return 0 || return 1 397 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
294} 398}
295 399
296get_localversion() { 400get_localversion() {
297 local lv_list i x 401 local lv_list i x
298 402
306 done 410 done
307 x=${x/ /} 411 x=${x/ /}
308 echo ${x} 412 echo ${x}
309} 413}
310 414
415# Check if the Makefile is valid for direct parsing.
416# Check status results:
417# - PASS, use 'getfilevar' to extract values
418# - FAIL, use 'getfilevar_noexec' to extract values
419# The check may fail if:
420# - make is not present
421# - corruption exists in the kernel makefile
422get_makefile_extract_function() {
423 local a='' b='' mkfunc='getfilevar'
424 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
425 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
426 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
427 echo "${mkfunc}"
428}
429
430# internal variable, so we know to only print the warning once
431get_version_warning_done=
432
311# @FUNCTION: get_version 433# @FUNCTION: get_version
312# @DESCRIPTION: 434# @DESCRIPTION:
313# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable 435# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
314# (if KV_FULL is already set it does nothing). 436# (if KV_FULL is already set it does nothing).
315# 437#
317# 439#
318# 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
319# 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
320# 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).
321get_version() { 443get_version() {
322 local kbuild_output 444 local kbuild_output mkfunc tmplocal
323 445
324 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
325 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
326 [ -n "${KV_FULL}" ] && return 0 448 [ -n "${KV_FULL}" ] && return 0
327 449
328 # if we dont know KV_FULL, then we need too. 450 # if we dont know KV_FULL, then we need too.
329 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 451 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
330 unset KV_DIR 452 unset KV_DIR
331 453
332 # KV_DIR will contain the full path to the sources directory we should use 454 # KV_DIR will contain the full path to the sources directory we should use
455 [ -z "${get_version_warning_done}" ] && \
333 qeinfo "Determining the location of the kernel source code" 456 qeinfo "Determining the location of the kernel source code"
334 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 457 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
335 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 458 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
336 459
337 if [ -z "${KV_DIR}" ] 460 if [ -z "${KV_DIR}" ]
338 then 461 then
462 if [ -z "${get_version_warning_done}" ]; then
463 get_version_warning_done=1
339 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 464 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
340 qeinfo "This package requires Linux sources." 465 #qeinfo "This package requires Linux sources."
341 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 466 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
342 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 467 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
343 qeinfo "(or the kernel you wish to build against)." 468 qeinfo "(or the kernel you wish to build against)."
344 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 469 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
345 else 470 else
346 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 471 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
472 fi
347 fi 473 fi
348 return 1 474 return 1
349 fi 475 fi
350 476
477 if [ -z "${get_version_warning_done}" ]; then
351 qeinfo "Found kernel source directory:" 478 qeinfo "Found kernel source directory:"
352 qeinfo " ${KV_DIR}" 479 qeinfo " ${KV_DIR}"
480 fi
353 481
354 if [ ! -s "${KV_DIR}/Makefile" ] 482 if [ ! -s "${KV_DIR}/Makefile" ]
355 then 483 then
484 if [ -z "${get_version_warning_done}" ]; then
485 get_version_warning_done=1
356 qeerror "Could not find a Makefile in the kernel source directory." 486 qeerror "Could not find a Makefile in the kernel source directory."
357 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 487 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
488 fi
358 return 1 489 return 1
359 fi 490 fi
360 491
361 # OK so now we know our sources directory, but they might be using 492 # OK so now we know our sources directory, but they might be using
362 # KBUILD_OUTPUT, and we need this for .config and localversions-* 493 # KBUILD_OUTPUT, and we need this for .config and localversions-*
363 # so we better find it eh? 494 # so we better find it eh?
364 # do we pass KBUILD_OUTPUT on the CLI? 495 # do we pass KBUILD_OUTPUT on the CLI?
365 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
366 497
498 # keep track of it
499 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
500
501 # Decide the function used to extract makefile variables.
502 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
503
367 # And if we didn't pass it, we can take a nosey in the Makefile 504 # And if we didn't pass it, we can take a nosey in the Makefile
368 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 505 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
369 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 506 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
370 507
371 # And contrary to existing functions I feel we shouldn't trust the 508 # And contrary to existing functions I feel we shouldn't trust the
372 # directory name to find version information as this seems insane. 509 # directory name to find version information as this seems insane.
373 # so we parse ${KV_DIR}/Makefile 510 # so we parse ${KERNEL_MAKEFILE}
374 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 511 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
375 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 512 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
376 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 513 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
377 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 514 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
378 515
379 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 516 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
380 then 517 then
518 if [ -z "${get_version_warning_done}" ]; then
519 get_version_warning_done=1
381 qeerror "Could not detect kernel version." 520 qeerror "Could not detect kernel version."
382 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 521 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
522 fi
383 return 1 523 return 1
384 fi 524 fi
385 525
386 # and in newer versions we can also pull LOCALVERSION if it is set. 526 # and in newer versions we can also pull LOCALVERSION if it is set.
387 # but before we do this, we need to find if we use a different object directory. 527 # but before we do this, we need to find if we use a different object directory.
388 # This *WILL* break if the user is using localversions, but we assume it was 528 # This *WILL* break if the user is using localversions, but we assume it was
389 # caught before this if they are. 529 # caught before this if they are.
390 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
391 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 530 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
392 531
393 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
394 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
395 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
396 then 535 then
397 qeinfo "Found kernel object directory:" 536 qeinfo "Found kernel object directory:"
398 qeinfo " ${KV_OUT_DIR}" 537 qeinfo " ${KV_OUT_DIR}"
399
400 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
401 fi 538 fi
402 # and if we STILL have not got it, then we better just set it to KV_DIR 539 # and if we STILL have not got it, then we better just set it to KV_DIR
403 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 540 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
404 541
405 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 542 # Grab the kernel release from the output directory.
406 if linux_config_exists; then 543 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
407 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 544 # this function.
408 KV_LOCAL="${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
409 552
410 # For things like git that can append extra stuff: 553 # KV_LOCAL currently contains the full release; discard the first bits.
411 [ -e ${KV_DIR}/scripts/setlocalversion ] && 554 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
412 linux_chkconfig_builtin LOCALVERSION_AUTO && 555
413 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
414 fi 564 fi
415 565
416 # And we should set KV_FULL to the full expanded version 566 # And we should set KV_FULL to the full expanded version
417 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}"
418 568
427# 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
428# function can find the sources. 578# function can find the sources.
429get_running_version() { 579get_running_version() {
430 KV_FULL=$(uname -r) 580 KV_FULL=$(uname -r)
431 581
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 $?
432 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 588 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
433 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 589 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
434 unset KV_FULL 590 unset KV_FULL
435 get_version 591 get_version
436 return $? 592 return $?
437 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 593 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
440 get_version 596 get_version
441 return $? 597 return $?
442 else 598 else
443 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 599 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
444 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 600 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
445 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 601 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
446 KV_PATCH=${KV_PATCH//-*} 602 KV_PATCH=${KV_PATCH//-*}
447 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 603 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
448 && KV_EXTRA="-${KV_FULL#*-}"
449 fi 604 fi
450 return 0 605 return 0
606}
607
608# This next function is named with the eclass prefix to avoid conflicts with
609# some old versionator-like eclass functions.
610
611# @FUNCTION: linux-info_get_any_version
612# @DESCRIPTION:
613# This attempts to find the version of the sources, and otherwise falls back to
614# the version of the running kernel.
615linux-info_get_any_version() {
616 get_version
617 if [[ $? -ne 0 ]]; then
618 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
619 get_running_version
620 fi
451} 621}
452 622
453 623
454# ebuild check functions 624# ebuild check functions
455# --------------------------------------- 625# ---------------------------------------
499# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 669# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
500# the prefix ~ is not used) doesn't satisfy the directive. 670# the prefix ~ is not used) doesn't satisfy the directive.
501check_extra_config() { 671check_extra_config() {
502 local config negate die error reworkmodulenames 672 local config negate die error reworkmodulenames
503 local soft_errors_count=0 hard_errors_count=0 config_required=0 673 local soft_errors_count=0 hard_errors_count=0 config_required=0
674 # store the value of the QA check, because otherwise we won't catch usages
675 # after if check_extra_config is called AND other direct calls are done
676 # later.
677 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
504 678
505 # if we haven't determined the version yet, we need to 679 # if we haven't determined the version yet, we need to
506 get_version 680 linux-info_get_any_version
507 681
508 # Determine if we really need a .config. The only time when we don't need 682 # Determine if we really need a .config. The only time when we don't need
509 # one is when all of the CONFIG_CHECK options are prefixed with "~". 683 # one is when all of the CONFIG_CHECK options are prefixed with "~".
510 for config in ${CONFIG_CHECK} 684 for config in ${CONFIG_CHECK}
511 do 685 do
518 if [[ ${config_required} == 0 ]]; then 692 if [[ ${config_required} == 0 ]]; then
519 # In the case where we don't require a .config, we can now bail out 693 # In the case where we don't require a .config, we can now bail out
520 # if the user has no .config as there is nothing to do. Otherwise 694 # if the user has no .config as there is nothing to do. Otherwise
521 # code later will cause a failure due to missing .config. 695 # code later will cause a failure due to missing .config.
522 if ! linux_config_exists; then 696 if ! linux_config_exists; then
697 ewarn "Unable to check for the following kernel config options due"
698 ewarn "to absence of any configured kernel sources or compiled"
699 ewarn "config:"
700 for config in ${CONFIG_CHECK}; do
701 local_error="ERROR_${config#\~}"
702 msg="${!local_error}"
703 if [[ "x${msg}" == "x" ]]; then
704 local_error="WARNING_${config#\~}"
705 msg="${!local_error}"
706 fi
707 ewarn " - ${config#\~}${msg:+ - }${msg}"
708 done
709 ewarn "You're on your own to make sure they are set if needed."
710 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
523 return 0 711 return 0
524 fi 712 fi
525 else 713 else
526 require_configured_kernel 714 require_configured_kernel
527 fi 715 fi
604 if [[ ${hard_errors_count} > 0 ]]; then 792 if [[ ${hard_errors_count} > 0 ]]; then
605 eerror "Please check to make sure these options are set correctly." 793 eerror "Please check to make sure these options are set correctly."
606 eerror "Failure to do so may cause unexpected problems." 794 eerror "Failure to do so may cause unexpected problems."
607 eerror "Once you have satisfied these options, please try merging" 795 eerror "Once you have satisfied these options, please try merging"
608 eerror "this package again." 796 eerror "this package again."
797 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
609 die "Incorrect kernel configuration options" 798 die "Incorrect kernel configuration options"
610 elif [[ ${soft_errors_count} > 0 ]]; then 799 elif [[ ${soft_errors_count} > 0 ]]; then
611 ewarn "Please check to make sure these options are set correctly." 800 ewarn "Please check to make sure these options are set correctly."
612 ewarn "Failure to do so may cause unexpected problems." 801 ewarn "Failure to do so may cause unexpected problems."
613 else 802 else
614 eend 0 803 eend 0
615 fi 804 fi
805 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
616} 806}
617 807
618check_zlibinflate() { 808check_zlibinflate() {
619 # if we haven't determined the version yet, we need to 809 # if we haven't determined the version yet, we need to
620 require_configured_kernel 810 require_configured_kernel
633 local DEFLATE 823 local DEFLATE
634 824
635 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 825 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
636 826
637 ebegin "checking ZLIB_INFLATE" 827 ebegin "checking ZLIB_INFLATE"
638 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 828 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
639 eend $? 829 eend $?
640 [ "$?" != 0 ] && die 830 [ "$?" != 0 ] && die
641 831
642 ebegin "checking ZLIB_DEFLATE" 832 ebegin "checking ZLIB_DEFLATE"
643 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 833 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
644 eend $? 834 eend $?
645 [ "$?" != 0 ] && die 835 [ "$?" != 0 ] && die
646 836
647 local LINENO_START 837 local LINENO_START
648 local LINENO_END 838 local LINENO_END
691# @FUNCTION: linux-info_pkg_setup 881# @FUNCTION: linux-info_pkg_setup
692# @DESCRIPTION: 882# @DESCRIPTION:
693# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 883# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
694# to support the options specified in CONFIG_CHECK (if not null) 884# to support the options specified in CONFIG_CHECK (if not null)
695linux-info_pkg_setup() { 885linux-info_pkg_setup() {
696 get_version || die "Unable to calculate Linux Kernel version" 886 linux-info_get_any_version
697 887
698 if kernel_is 2 4; then 888 if kernel_is 2 4; then
699 if [ "$( gcc-major-version )" -eq "4" ] ; then 889 if [ "$( gcc-major-version )" -eq "4" ] ; then
700 echo 890 echo
701 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 891 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

Legend:
Removed from v.1.59  
changed lines
  Added in v.1.89

  ViewVC Help
Powered by ViewVC 1.1.20