/[gentoo-x86]/eclass/linux-info.eclass
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Revision 1.61 Revision 1.83
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 1.61 2009/08/30 22:37:06 robbat2 Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.83 2010/01/17 21:46:55 robbat2 Exp $
4# 4#
5# Original author: John Mylchreest <johnm@gentoo.org> 5# Original author: John Mylchreest <johnm@gentoo.org>
6# Maintainer: kernel-misc@gentoo.org 6# Maintainer: kernel-misc@gentoo.org
7# 7#
8# Please direct your bugs to the current eclass maintainer :) 8# Please direct your bugs to the current eclass maintainer :)
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
36# You can also check that an option doesn't exist by 40# You can also check that an option doesn't exist by
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 "${@}" ; }
140 153
141# File Functions 154# File Functions
142# --------------------------------------- 155# ---------------------------------------
143 156
178# @DESCRIPTION: 191# @DESCRIPTION:
179# It detects the value of the variable defined in the file configfile. 192# It detects the value of the variable defined in the file configfile.
180# This is done with sed matching an expression only. If the variable is defined, 193# This is done with sed matching an expression only. If the variable is defined,
181# you will run into problems. See getfilevar for those cases. 194# you will run into problems. See getfilevar for those cases.
182getfilevar_noexec() { 195getfilevar_noexec() {
183local ERROR basefname basedname myARCH="${ARCH}" 196 local ERROR basefname basedname mycat myARCH="${ARCH}"
184 ERROR=0 197 ERROR=0
198 mycat='cat'
185 199
186 [ -z "${1}" ] && ERROR=1 200 [ -z "${1}" ] && ERROR=1
187 [ ! -f "${2}" ] && ERROR=1 201 [ ! -f "${2}" ] && ERROR=1
202 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
188 203
189 if [ "${ERROR}" = 1 ] 204 if [ "${ERROR}" = 1 ]
190 then 205 then
191 echo -e "\n" 206 echo -e "\n"
192 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 207 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
193 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 208 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
194 else 209 else
210 ${mycat} "${2}" | \
195 sed -n \ 211 sed -n \
196 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 212 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
197 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 213 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
198 s,[[:space:]]*\$,,g ; 214 s,[[:space:]]*\$,,g ;
199 p 215 p
200 }" \ 216 }"
201 "${2}"
202 fi 217 fi
203} 218}
204 219
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 $f will NOT gaurenteed later!"
233 fi
234}
235
236# @FUNCTION: linux_config_src_exists
237# @RETURN: true or false
238# @DESCRIPTION:
239# It returns true if .config exists in a build directory otherwise false
240linux_config_src_exists() {
241 export _LINUX_CONFIG_EXISTS_DONE=1
242 [ -s "${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}
205 253
206# @FUNCTION: linux_config_exists 254# @FUNCTION: linux_config_exists
207# @RETURN: true or false 255# @RETURN: true or false
208# @DESCRIPTION: 256# @DESCRIPTION:
209# 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.
210linux_config_exists() { 261linux_config_exists() {
211 [ -s "${KV_OUT_DIR}/.config" ] 262 linux_config_src_exists || linux_config_bin_exists
212} 263}
213 264
214# @FUNCTION: require_configured_kernel 265# @FUNCTION: require_configured_kernel
215# @DESCRIPTION: 266# @DESCRIPTION:
216# 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)
217# otherwise it dies. 268# otherwise it dies.
218require_configured_kernel() { 269require_configured_kernel() {
219 if ! linux_config_exists; then 270 if ! linux_config_src_exists; then
220 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."
221 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."
222 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"
223 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."
224 die "Kernel not configured; no .config found in ${KV_OUT_DIR}" 275 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
228# @FUNCTION: linux_chkconfig_present 279# @FUNCTION: linux_chkconfig_present
229# @USAGE: option 280# @USAGE: option
230# @RETURN: true or false 281# @RETURN: true or false
231# @DESCRIPTION: 282# @DESCRIPTION:
232# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 283# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
284# If linux_config_exists returns false, the results of this are UNDEFINED. You
285# MUST call linux_config_exists first.
233linux_chkconfig_present() { 286linux_chkconfig_present() {
287 linux_config_qa_check linux_chkconfig_present
234local RESULT 288 local RESULT
235 require_configured_kernel 289 local config
290 config="${KV_OUT_DIR}/.config"
291 [ ! -f "${config}" ] && config="/proc/config.gz"
236 RESULT="$(getfilevar_noexec CONFIG_${1} ${KV_OUT_DIR}/.config)" 292 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
237 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 293 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
238} 294}
239 295
240# @FUNCTION: linux_chkconfig_module 296# @FUNCTION: linux_chkconfig_module
241# @USAGE: option 297# @USAGE: option
242# @RETURN: true or false 298# @RETURN: true or false
243# @DESCRIPTION: 299# @DESCRIPTION:
244# 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.
245linux_chkconfig_module() { 303linux_chkconfig_module() {
304 linux_config_qa_check linux_chkconfig_module
246local RESULT 305 local RESULT
247 require_configured_kernel 306 local config
307 config="${KV_OUT_DIR}/.config"
308 [ ! -f "${config}" ] && config="/proc/config.gz"
248 RESULT="$(getfilevar_noexec CONFIG_${1} ${KV_OUT_DIR}/.config)" 309 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
249 [ "${RESULT}" = "m" ] && return 0 || return 1 310 [ "${RESULT}" = "m" ] && return 0 || return 1
250} 311}
251 312
252# @FUNCTION: linux_chkconfig_builtin 313# @FUNCTION: linux_chkconfig_builtin
253# @USAGE: option 314# @USAGE: option
254# @RETURN: true or false 315# @RETURN: true or false
255# @DESCRIPTION: 316# @DESCRIPTION:
256# 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.
257linux_chkconfig_builtin() { 320linux_chkconfig_builtin() {
321 linux_config_qa_check linux_chkconfig_builtin
258local RESULT 322 local RESULT
259 require_configured_kernel 323 local config
324 config="${KV_OUT_DIR}/.config"
325 [ ! -f "${config}" ] && config="/proc/config.gz"
260 RESULT="$(getfilevar_noexec CONFIG_${1} ${KV_OUT_DIR}/.config)" 326 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
261 [ "${RESULT}" = "y" ] && return 0 || return 1 327 [ "${RESULT}" = "y" ] && return 0 || return 1
262} 328}
263 329
264# @FUNCTION: linux_chkconfig_string 330# @FUNCTION: linux_chkconfig_string
265# @USAGE: option 331# @USAGE: option
266# @RETURN: CONFIG_<option> 332# @RETURN: CONFIG_<option>
267# @DESCRIPTION: 333# @DESCRIPTION:
268# 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.
269linux_chkconfig_string() { 337linux_chkconfig_string() {
270 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"
271 getfilevar_noexec "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 getfilevar_noexec "CONFIG_${1}" "${config}"
272} 343}
273 344
274# Versioning Functions 345# Versioning Functions
275# --------------------------------------- 346# ---------------------------------------
276 347
292 363
293# got the jist yet? 364# got the jist yet?
294 365
295kernel_is() { 366kernel_is() {
296 # if we haven't determined the version yet, we need to. 367 # if we haven't determined the version yet, we need to.
297 get_version 368 linux-info_get_any_version
369
298 local operator test value x=0 y=0 z=0 370 local operator testagainst value x=0 y=0 z=0
299 371
300 case ${1} in 372 case ${1} in
301 lt) operator="-lt"; shift;; 373 -lt|lt) operator="-lt"; shift;;
302 gt) operator="-gt"; shift;; 374 -gt|gt) operator="-gt"; shift;;
303 le) operator="-le"; shift;; 375 -le|le) operator="-le"; shift;;
304 ge) operator="-ge"; shift;; 376 -ge|ge) operator="-ge"; shift;;
305 eq) operator="-eq"; shift;; 377 -eq|eq) operator="-eq"; shift;;
306 *) operator="-eq";; 378 *) operator="-eq";;
307 esac 379 esac
308 380
309 for x in ${@}; do 381 for x in ${@}; do
310 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 382 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
311 value="${value}${x}" 383 value="${value}${x}"
312 z=$((${z} + 1)) 384 z=$((${z} + 1))
313 385
314 case ${z} in 386 case ${z} in
315 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 387 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
316 test="${test}${KV_MAJOR}";; 388 testagainst="${testagainst}${KV_MAJOR}";;
317 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;
318 test="${test}${KV_MINOR}";; 390 testagainst="${testagainst}${KV_MINOR}";;
319 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;
320 test="${test}${KV_PATCH}";; 392 testagainst="${testagainst}${KV_PATCH}";;
321 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 393 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
322 esac 394 esac
323 done 395 done
324 396
325 [ ${test} ${operator} ${value} ] && return 0 || return 1 397 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
326} 398}
327 399
328get_localversion() { 400get_localversion() {
329 local lv_list i x 401 local lv_list i x
330 402
338 done 410 done
339 x=${x/ /} 411 x=${x/ /}
340 echo ${x} 412 echo ${x}
341} 413}
342 414
415# Check if the Makefile is valid for direct parsing.
416# Check status results:
417# - PASS, use 'getfilevar' to extract values
418# - FAIL, use 'getfilevar_noexec' to extract values
419# The check may fail if:
420# - make is not present
421# - corruption exists in the kernel makefile
422get_makefile_extract_function() {
423 local a='' b='' mkfunc='getfilevar'
424 a="$(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
343# @FUNCTION: get_version 433# @FUNCTION: get_version
344# @DESCRIPTION: 434# @DESCRIPTION:
345# 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
346# (if KV_FULL is already set it does nothing). 436# (if KV_FULL is already set it does nothing).
347# 437#
349# 439#
350# 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
351# 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
352# 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).
353get_version() { 443get_version() {
354 local kbuild_output 444 local kbuild_output mkfunc
355 445
356 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
357 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
358 [ -n "${KV_FULL}" ] && return 0 448 [ -n "${KV_FULL}" ] && return 0
359 449
360 # if we dont know KV_FULL, then we need too. 450 # if we dont know KV_FULL, then we need too.
361 # 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
362 unset KV_DIR 452 unset KV_DIR
363 453
364 # 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 "${get_version_warning_done}" ] && \
365 qeinfo "Determining the location of the kernel source code" 456 qeinfo "Determining the location of the kernel source code"
366 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 457 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
367 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 458 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
368 459
369 if [ -z "${KV_DIR}" ] 460 if [ -z "${KV_DIR}" ]
370 then 461 then
462 if [ -z "${get_version_warning_done}" ]; then
463 get_version_warning_done=1
371 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 464 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
372 qeinfo "This package requires Linux sources." 465 #qeinfo "This package requires Linux sources."
373 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 466 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
374 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 467 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
375 qeinfo "(or the kernel you wish to build against)." 468 qeinfo "(or the kernel you wish to build against)."
376 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 469 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
377 else 470 else
378 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 471 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
472 fi
379 fi 473 fi
380 return 1 474 return 1
381 fi 475 fi
382 476
477 if [ -z "${get_version_warning_done}" ]; then
383 qeinfo "Found kernel source directory:" 478 qeinfo "Found kernel source directory:"
384 qeinfo " ${KV_DIR}" 479 qeinfo " ${KV_DIR}"
480 fi
385 481
386 if [ ! -s "${KV_DIR}/Makefile" ] 482 if [ ! -s "${KV_DIR}/Makefile" ]
387 then 483 then
484 if [ -z "${get_version_warning_done}" ]; then
485 get_version_warning_done=1
388 qeerror "Could not find a Makefile in the kernel source directory." 486 qeerror "Could not find a Makefile in the kernel source directory."
389 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 487 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
488 fi
390 return 1 489 return 1
391 fi 490 fi
392 491
393 # OK so now we know our sources directory, but they might be using 492 # OK so now we know our sources directory, but they might be using
394 # KBUILD_OUTPUT, and we need this for .config and localversions-* 493 # KBUILD_OUTPUT, and we need this for .config and localversions-*
395 # so we better find it eh? 494 # so we better find it eh?
396 # do we pass KBUILD_OUTPUT on the CLI? 495 # do we pass KBUILD_OUTPUT on the CLI?
397 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
398 497
498 # keep track of it
499 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
500
501 # Decide the function used to extract makefile variables.
502 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
503
399 # 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
400 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 505 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
401 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 506 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
402 507
403 # 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
404 # directory name to find version information as this seems insane. 509 # directory name to find version information as this seems insane.
405 # so we parse ${KV_DIR}/Makefile 510 # so we parse ${KERNEL_MAKEFILE}
406 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 511 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
407 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 512 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
408 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 513 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
409 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 514 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
410 515
411 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 516 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
412 then 517 then
518 if [ -z "${get_version_warning_done}" ]; then
519 get_version_warning_done=1
413 qeerror "Could not detect kernel version." 520 qeerror "Could not detect kernel version."
414 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 521 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
522 fi
415 return 1 523 return 1
416 fi 524 fi
417 525
418 # and in newer versions we can also pull LOCALVERSION if it is set. 526 # and in newer versions we can also pull LOCALVERSION if it is set.
419 # but before we do this, we need to find if we use a different object directory. 527 # but before we do this, we need to find if we use a different object directory.
420 # This *WILL* break if the user is using localversions, but we assume it was 528 # This *WILL* break if the user is using localversions, but we assume it was
421 # caught before this if they are. 529 # caught before this if they are.
422 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
423 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}"
424 531
425 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
426 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
427 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
428 then 535 then
433 fi 540 fi
434 # and if we STILL have not got it, then we better just set it to KV_DIR 541 # and if we STILL have not got it, then we better just set it to KV_DIR
435 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 542 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
436 543
437 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 544 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
438 if linux_config_exists; then 545 if linux_config_src_exists; then
439 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 546 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
440 KV_LOCAL="${KV_LOCAL//\"/}" 547 KV_LOCAL="${KV_LOCAL//\"/}"
441 548
442 # For things like git that can append extra stuff: 549 # For things like git that can append extra stuff:
443 [ -e ${KV_DIR}/scripts/setlocalversion ] && 550 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
480 && KV_EXTRA="-${KV_FULL#*-}" 587 && KV_EXTRA="-${KV_FULL#*-}"
481 fi 588 fi
482 return 0 589 return 0
483} 590}
484 591
592# This next function is named with the eclass prefix to avoid conflicts with
593# some old versionator-like eclass functions.
594
595# @FUNCTION: linux-info_get_any_version
596# @DESCRIPTION:
597# This attempts to find the version of the sources, and otherwise falls back to
598# the version of the running kernel.
599linux-info_get_any_version() {
600 get_version
601 if [[ $? -ne 0 ]]; then
602 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
603 get_running_version
604 fi
605}
606
485 607
486# ebuild check functions 608# ebuild check functions
487# --------------------------------------- 609# ---------------------------------------
488 610
489# @FUNCTION: check_kernel_built 611# @FUNCTION: check_kernel_built
531# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 653# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
532# the prefix ~ is not used) doesn't satisfy the directive. 654# the prefix ~ is not used) doesn't satisfy the directive.
533check_extra_config() { 655check_extra_config() {
534 local config negate die error reworkmodulenames 656 local config negate die error reworkmodulenames
535 local soft_errors_count=0 hard_errors_count=0 config_required=0 657 local soft_errors_count=0 hard_errors_count=0 config_required=0
658 # store the value of the QA check, because otherwise we won't catch usages
659 # after if check_extra_config is called AND other direct calls are done
660 # later.
661 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
536 662
537 # if we haven't determined the version yet, we need to 663 # if we haven't determined the version yet, we need to
538 get_version 664 linux-info_get_any_version
539 665
540 # Determine if we really need a .config. The only time when we don't need 666 # Determine if we really need a .config. The only time when we don't need
541 # one is when all of the CONFIG_CHECK options are prefixed with "~". 667 # one is when all of the CONFIG_CHECK options are prefixed with "~".
542 for config in ${CONFIG_CHECK} 668 for config in ${CONFIG_CHECK}
543 do 669 do
551 # In the case where we don't require a .config, we can now bail out 677 # In the case where we don't require a .config, we can now bail out
552 # if the user has no .config as there is nothing to do. Otherwise 678 # if the user has no .config as there is nothing to do. Otherwise
553 # code later will cause a failure due to missing .config. 679 # code later will cause a failure due to missing .config.
554 if ! linux_config_exists; then 680 if ! linux_config_exists; then
555 ewarn "Unable to check for the following kernel config options due" 681 ewarn "Unable to check for the following kernel config options due"
556 ewarn "to absence of any configured kernel sources:" 682 ewarn "to absence of any configured kernel sources or compiled"
683 ewarn "config:"
557 for config in ${CONFIG_CHECK}; do 684 for config in ${CONFIG_CHECK}; do
685 local_error="ERROR_${config#\~}"
686 msg="${!local_error}"
687 if [[ "x${msg}" == "x" ]]; then
688 local_error="WARNING_${config#\~}"
689 msg="${!local_error}"
690 fi
558 ewarn " - ${config#\~}" 691 ewarn " - ${config#\~}${msg:+ - }${msg}"
559 done 692 done
560 ewarn "You're on your own to make sure they are set if needed." 693 ewarn "You're on your own to make sure they are set if needed."
694 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
561 return 0 695 return 0
562 fi 696 fi
563 else 697 else
564 require_configured_kernel 698 require_configured_kernel
565 fi 699 fi
642 if [[ ${hard_errors_count} > 0 ]]; then 776 if [[ ${hard_errors_count} > 0 ]]; then
643 eerror "Please check to make sure these options are set correctly." 777 eerror "Please check to make sure these options are set correctly."
644 eerror "Failure to do so may cause unexpected problems." 778 eerror "Failure to do so may cause unexpected problems."
645 eerror "Once you have satisfied these options, please try merging" 779 eerror "Once you have satisfied these options, please try merging"
646 eerror "this package again." 780 eerror "this package again."
781 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
647 die "Incorrect kernel configuration options" 782 die "Incorrect kernel configuration options"
648 elif [[ ${soft_errors_count} > 0 ]]; then 783 elif [[ ${soft_errors_count} > 0 ]]; then
649 ewarn "Please check to make sure these options are set correctly." 784 ewarn "Please check to make sure these options are set correctly."
650 ewarn "Failure to do so may cause unexpected problems." 785 ewarn "Failure to do so may cause unexpected problems."
651 else 786 else
652 eend 0 787 eend 0
653 fi 788 fi
789 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
654} 790}
655 791
656check_zlibinflate() { 792check_zlibinflate() {
657 # if we haven't determined the version yet, we need to 793 # if we haven't determined the version yet, we need to
658 require_configured_kernel 794 require_configured_kernel
729# @FUNCTION: linux-info_pkg_setup 865# @FUNCTION: linux-info_pkg_setup
730# @DESCRIPTION: 866# @DESCRIPTION:
731# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured 867# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
732# to support the options specified in CONFIG_CHECK (if not null) 868# to support the options specified in CONFIG_CHECK (if not null)
733linux-info_pkg_setup() { 869linux-info_pkg_setup() {
734 get_version || die "Unable to calculate Linux Kernel version" 870 linux-info_get_any_version
735 871
736 if kernel_is 2 4; then 872 if kernel_is 2 4; then
737 if [ "$( gcc-major-version )" -eq "4" ] ; then 873 if [ "$( gcc-major-version )" -eq "4" ] ; then
738 echo 874 echo
739 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 875 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

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