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Revision 1.71 Revision 1.98
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 1.98 2013/02/10 06:18:19 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
112 113
113DEPEND="" 114DEPEND=""
114RDEPEND="" 115RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
117DEPEND="kernel_linux? ( virtual/linux-sources )"
118 116
119# Overwritable environment Var's 117# Overwritable environment Var's
120# --------------------------------------- 118# ---------------------------------------
121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
122 120
153 esac 151 esac
154 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
155} 153}
156 154
157qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
158qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
159 158
160# File Functions 159# File Functions
161# --------------------------------------- 160# ---------------------------------------
162 161
166# @DESCRIPTION: 165# @DESCRIPTION:
167# It detects the value of the variable defined in the file configfile. This is 166# It detects the value of the variable defined in the file configfile. This is
168# done by including the configfile, and printing the variable with Make. 167# done by including the configfile, and printing the variable with Make.
169# It WILL break if your makefile has missing dependencies! 168# It WILL break if your makefile has missing dependencies!
170getfilevar() { 169getfilevar() {
171local ERROR basefname basedname myARCH="${ARCH}" 170 local ERROR basefname basedname myARCH="${ARCH}"
172 ERROR=0 171 ERROR=0
173 172
174 [ -z "${1}" ] && ERROR=1 173 [ -z "${1}" ] && ERROR=1
175 [ ! -f "${2}" ] && ERROR=1 174 [ ! -f "${2}" ] && ERROR=1
176 175
182 else 181 else
183 basefname="$(basename ${2})" 182 basefname="$(basename ${2})"
184 basedname="$(dirname ${2})" 183 basedname="$(dirname ${2})"
185 unset ARCH 184 unset ARCH
186 185
186 # We use nonfatal because we want the caller to take care of things #373151
187 [[ ${EAPI:-0} == [0123] ]] && nonfatal() { "$@"; }
187 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \ 188 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
188 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null 189 nonfatal emake -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
189 190
190 ARCH=${myARCH} 191 ARCH=${myARCH}
191 fi 192 fi
192} 193}
193 194
197# @DESCRIPTION: 198# @DESCRIPTION:
198# It detects the value of the variable defined in the file configfile. 199# It detects the value of the variable defined in the file configfile.
199# This is done with sed matching an expression only. If the variable is defined, 200# This is done with sed matching an expression only. If the variable is defined,
200# you will run into problems. See getfilevar for those cases. 201# you will run into problems. See getfilevar for those cases.
201getfilevar_noexec() { 202getfilevar_noexec() {
202 local ERROR basefname basedname mycat myARCH="${ARCH}" 203 local ERROR basefname basedname mycat myARCH="${ARCH}"
203 ERROR=0 204 ERROR=0
204 mycat='cat' 205 mycat='cat'
205 206
206 [ -z "${1}" ] && ERROR=1 207 [ -z "${1}" ] && ERROR=1
207 [ ! -f "${2}" ] && ERROR=1 208 [ ! -f "${2}" ] && ERROR=1
213 eerror "getfilevar_noexec requires 2 variables, with the second a valid file." 214 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
214 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>" 215 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
215 else 216 else
216 ${mycat} "${2}" | \ 217 ${mycat} "${2}" | \
217 sed -n \ 218 sed -n \
218 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{ 219 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
219 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ; 220 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
220 s,[[:space:]]*\$,,g ; 221 s,[[:space:]]*\$,,g ;
221 p 222 p
222 }" 223 }"
223 fi 224 fi
224} 225}
225 226
227# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
228# @INTERNAL
229# @DESCRIPTION:
230# This is only set if one of the linux_config_*exists functions has been called.
231# We use it for a QA warning that the check for a config has not been performed,
232# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
233# config is available at all.
234_LINUX_CONFIG_EXISTS_DONE=
235
236linux_config_qa_check() {
237 local f="$1"
238 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
239 ewarn "QA: You called $f before any linux_config_exists!"
240 ewarn "QA: The return value of $f will NOT guaranteed later!"
241 fi
242}
226 243
227# @FUNCTION: linux_config_src_exists 244# @FUNCTION: linux_config_src_exists
228# @RETURN: true or false 245# @RETURN: true or false
229# @DESCRIPTION: 246# @DESCRIPTION:
230# It returns true if .config exists in a build directory otherwise false 247# It returns true if .config exists in a build directory otherwise false
231linux_config_src_exists() { 248linux_config_src_exists() {
232 [ -s "${KV_OUT_DIR}/.config" ] 249 export _LINUX_CONFIG_EXISTS_DONE=1
250 [[ -n ${KV_OUT_DIR} && -s ${KV_OUT_DIR}/.config ]]
233} 251}
234 252
235# @FUNCTION: linux_config_bin_exists 253# @FUNCTION: linux_config_bin_exists
236# @RETURN: true or false 254# @RETURN: true or false
237# @DESCRIPTION: 255# @DESCRIPTION:
238# It returns true if .config exists in /proc, otherwise false 256# It returns true if .config exists in /proc, otherwise false
239linux_config_bin_exists() { 257linux_config_bin_exists() {
258 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "/proc/config.gz" ] 259 [[ -s /proc/config.gz ]]
241} 260}
242 261
243# @FUNCTION: linux_config_exists 262# @FUNCTION: linux_config_exists
244# @RETURN: true or false 263# @RETURN: true or false
245# @DESCRIPTION: 264# @DESCRIPTION:
247# 266#
248# This function MUST be checked before using any of the linux_chkconfig_* 267# This function MUST be checked before using any of the linux_chkconfig_*
249# functions. 268# functions.
250linux_config_exists() { 269linux_config_exists() {
251 linux_config_src_exists || linux_config_bin_exists 270 linux_config_src_exists || linux_config_bin_exists
271}
272
273# @FUNCTION: linux_config_path
274# @DESCRIPTION:
275# Echo the name of the config file to use. If none are found,
276# then return false.
277linux_config_path() {
278 if linux_config_src_exists; then
279 echo "${KV_OUT_DIR}/.config"
280 elif linux_config_bin_exists; then
281 echo "/proc/config.gz"
282 else
283 return 1
284 fi
252} 285}
253 286
254# @FUNCTION: require_configured_kernel 287# @FUNCTION: require_configured_kernel
255# @DESCRIPTION: 288# @DESCRIPTION:
256# This function verifies that the current kernel is configured (it checks against the existence of .config) 289# This function verifies that the current kernel is configured (it checks against the existence of .config)
271# @DESCRIPTION: 304# @DESCRIPTION:
272# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config 305# 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 306# If linux_config_exists returns false, the results of this are UNDEFINED. You
274# MUST call linux_config_exists first. 307# MUST call linux_config_exists first.
275linux_chkconfig_present() { 308linux_chkconfig_present() {
276local RESULT 309 linux_config_qa_check linux_chkconfig_present
277 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 310 [[ $(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 "${RESULT}" = "y" ] && return 0 || return 1
283} 311}
284 312
285# @FUNCTION: linux_chkconfig_module 313# @FUNCTION: linux_chkconfig_module
286# @USAGE: option 314# @USAGE: option
287# @RETURN: true or false 315# @RETURN: true or false
288# @DESCRIPTION: 316# @DESCRIPTION:
289# It checks that CONFIG_<option>=m is present in the current kernel .config 317# It checks that CONFIG_<option>=m is present in the current kernel .config
290# If linux_config_exists returns false, the results of this are UNDEFINED. You 318# If linux_config_exists returns false, the results of this are UNDEFINED. You
291# MUST call linux_config_exists first. 319# MUST call linux_config_exists first.
292linux_chkconfig_module() { 320linux_chkconfig_module() {
293local RESULT 321 linux_config_qa_check linux_chkconfig_module
294 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 322 [[ $(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} 323}
301 324
302# @FUNCTION: linux_chkconfig_builtin 325# @FUNCTION: linux_chkconfig_builtin
303# @USAGE: option 326# @USAGE: option
304# @RETURN: true or false 327# @RETURN: true or false
305# @DESCRIPTION: 328# @DESCRIPTION:
306# It checks that CONFIG_<option>=y is present in the current kernel .config 329# 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 330# If linux_config_exists returns false, the results of this are UNDEFINED. You
308# MUST call linux_config_exists first. 331# MUST call linux_config_exists first.
309linux_chkconfig_builtin() { 332linux_chkconfig_builtin() {
310local RESULT 333 linux_config_qa_check linux_chkconfig_builtin
311 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 334 [[ $(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} 335}
318 336
319# @FUNCTION: linux_chkconfig_string 337# @FUNCTION: linux_chkconfig_string
320# @USAGE: option 338# @USAGE: option
321# @RETURN: CONFIG_<option> 339# @RETURN: CONFIG_<option>
322# @DESCRIPTION: 340# @DESCRIPTION:
323# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel). 341# 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 342# If linux_config_exists returns false, the results of this are UNDEFINED. You
325# MUST call linux_config_exists first. 343# MUST call linux_config_exists first.
326linux_chkconfig_string() { 344linux_chkconfig_string() {
327 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 345 linux_config_qa_check linux_chkconfig_string
328 local config
329 config="${KV_OUT_DIR}/.config"
330 [ ! -f "${config}" ] && config="/proc/config.gz"
331 getfilevar_noexec "CONFIG_${1}" "${config}" 346 getfilevar_noexec "CONFIG_$1" "$(linux_config_path)"
332} 347}
333 348
334# Versioning Functions 349# Versioning Functions
335# --------------------------------------- 350# ---------------------------------------
336 351
348# kernel_is 2 6 returns true 363# kernel_is 2 6 returns true
349# kernel_is 2 6 8 returns false 364# kernel_is 2 6 8 returns false
350# kernel_is 2 6 9 returns true 365# kernel_is 2 6 9 returns true
351# @CODE 366# @CODE
352 367
353# got the jist yet? 368# Note: duplicated in kernel-2.eclass
354
355kernel_is() { 369kernel_is() {
356 # if we haven't determined the version yet, we need to. 370 # if we haven't determined the version yet, we need to.
357 linux-info_get_any_version 371 linux-info_get_any_version
358 372
373 # Now we can continue
359 local operator test value x=0 y=0 z=0 374 local operator test value
360 375
361 case ${1} in 376 case ${1#-} in
362 -lt|lt) operator="-lt"; shift;; 377 lt) operator="-lt"; shift;;
363 -gt|gt) operator="-gt"; shift;; 378 gt) operator="-gt"; shift;;
364 -le|le) operator="-le"; shift;; 379 le) operator="-le"; shift;;
365 -ge|ge) operator="-ge"; shift;; 380 ge) operator="-ge"; shift;;
366 -eq|eq) operator="-eq"; shift;; 381 eq) operator="-eq"; shift;;
367 *) operator="-eq";; 382 *) operator="-eq";;
368 esac 383 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.";; 384 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
383 esac 385
384 done 386 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
385 387 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
386 [ ${test} ${operator} ${value} ] && return 0 || return 1 388 [ ${test} ${operator} ${value} ]
387} 389}
388 390
389get_localversion() { 391get_localversion() {
390 local lv_list i x 392 local lv_list i x
391 393
399 done 401 done
400 x=${x/ /} 402 x=${x/ /}
401 echo ${x} 403 echo ${x}
402} 404}
403 405
406# Check if the Makefile is valid for direct parsing.
407# Check status results:
408# - PASS, use 'getfilevar' to extract values
409# - FAIL, use 'getfilevar_noexec' to extract values
410# The check may fail if:
411# - make is not present
412# - corruption exists in the kernel makefile
413get_makefile_extract_function() {
414 local a='' b='' mkfunc='getfilevar'
415 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
416 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
417 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
418 echo "${mkfunc}"
419}
420
404# internal variable, so we know to only print the warning once 421# internal variable, so we know to only print the warning once
405get_version_warning_done= 422get_version_warning_done=
406 423
407# @FUNCTION: get_version 424# @FUNCTION: get_version
408# @DESCRIPTION: 425# @DESCRIPTION:
413# 430#
414# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid 431# 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 432# 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). 433# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
417get_version() { 434get_version() {
418 local kbuild_output 435 local kbuild_output mkfunc tmplocal
419 436
420 # no need to execute this twice assuming KV_FULL is populated. 437 # no need to execute this twice assuming KV_FULL is populated.
421 # we can force by unsetting KV_FULL 438 # we can force by unsetting KV_FULL
422 [ -n "${KV_FULL}" ] && return 0 439 [ -n "${KV_FULL}" ] && return 0
423 440
467 # KBUILD_OUTPUT, and we need this for .config and localversions-* 484 # KBUILD_OUTPUT, and we need this for .config and localversions-*
468 # so we better find it eh? 485 # so we better find it eh?
469 # do we pass KBUILD_OUTPUT on the CLI? 486 # do we pass KBUILD_OUTPUT on the CLI?
470 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 487 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
471 488
489 # keep track of it
490 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
491
492 # Decide the function used to extract makefile variables.
493 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
494
472 # And if we didn't pass it, we can take a nosey in the Makefile 495 # And if we didn't pass it, we can take a nosey in the Makefile
473 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 496 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
474 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 497 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
475 498
476 # And contrary to existing functions I feel we shouldn't trust the 499 # And contrary to existing functions I feel we shouldn't trust the
477 # directory name to find version information as this seems insane. 500 # directory name to find version information as this seems insane.
478 # so we parse ${KV_DIR}/Makefile 501 # so we parse ${KERNEL_MAKEFILE}
479 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 502 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
480 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 503 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
481 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 504 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
482 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 505 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
483 506
484 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 507 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
485 then 508 then
486 if [ -z "${get_version_warning_done}" ]; then 509 if [ -z "${get_version_warning_done}" ]; then
487 get_version_warning_done=1 510 get_version_warning_done=1
493 516
494 # and in newer versions we can also pull LOCALVERSION if it is set. 517 # and in newer versions we can also pull LOCALVERSION if it is set.
495 # but before we do this, we need to find if we use a different object directory. 518 # but before we do this, we need to find if we use a different object directory.
496 # This *WILL* break if the user is using localversions, but we assume it was 519 # This *WILL* break if the user is using localversions, but we assume it was
497 # caught before this if they are. 520 # caught before this if they are.
498 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
499 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 521 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
500 522
501 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 523 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
502 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 524 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
503 if [ -n "${KV_OUT_DIR}" ]; 525 if [ -n "${KV_OUT_DIR}" ];
504 then 526 then
505 qeinfo "Found kernel object directory:" 527 qeinfo "Found kernel object directory:"
506 qeinfo " ${KV_OUT_DIR}" 528 qeinfo " ${KV_OUT_DIR}"
507
508 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
509 fi 529 fi
510 # and if we STILL have not got it, then we better just set it to KV_DIR 530 # and if we STILL have not got it, then we better just set it to KV_DIR
511 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 531 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
512 532
513 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 533 # Grab the kernel release from the output directory.
514 if linux_config_src_exists; then 534 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
515 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 535 # this function.
516 KV_LOCAL="${KV_LOCAL//\"/}" 536 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
537 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
538 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
539 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
540 else
541 KV_LOCAL=
542 fi
517 543
518 # For things like git that can append extra stuff: 544 # KV_LOCAL currently contains the full release; discard the first bits.
519 [ -e ${KV_DIR}/scripts/setlocalversion ] && 545 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
520 linux_chkconfig_builtin LOCALVERSION_AUTO && 546
521 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 547 # If the updated local version was not changed, the tree is not prepared.
548 # Clear out KV_LOCAL in that case.
549 # TODO: this does not detect a change in the localversion part between
550 # kernel.release and the value that would be generated.
551 if [ "$KV_LOCAL" = "$tmplocal" ]; then
552 KV_LOCAL=
553 else
554 KV_LOCAL=$tmplocal
522 fi 555 fi
523 556
524 # And we should set KV_FULL to the full expanded version 557 # And we should set KV_FULL to the full expanded version
525 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 558 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
526 559
535# It gets the version of the current running kernel and the result is the same as get_version() if the 568# 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. 569# function can find the sources.
537get_running_version() { 570get_running_version() {
538 KV_FULL=$(uname -r) 571 KV_FULL=$(uname -r)
539 572
573 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
575 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
576 unset KV_FULL
577 get_version
578 return $?
540 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 579 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
541 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 580 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
542 unset KV_FULL 581 unset KV_FULL
543 get_version 582 get_version
544 return $? 583 return $?
545 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 584 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
546 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 585 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
547 unset KV_FULL 586 unset KV_FULL
548 get_version 587 get_version
549 return $? 588 return $?
550 else 589 else
590 # This handles a variety of weird kernel versions. Make sure to update
591 # tests/linux-info:get_running_version.sh if you want to change this.
592 local kv_full=${KV_FULL//[-+_]*}
551 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 593 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
552 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 594 KV_MINOR=$(get_version_component_range 2 ${kv_full})
553 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 595 KV_PATCH=$(get_version_component_range 3 ${kv_full})
554 KV_PATCH=${KV_PATCH//-*} 596 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
555 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 597 : ${KV_PATCH:=0}
556 && KV_EXTRA="-${KV_FULL#*-}"
557 fi 598 fi
558 return 0 599 return 0
559} 600}
560 601
561# This next function is named with the eclass prefix to avoid conflicts with 602# This next function is named with the eclass prefix to avoid conflicts with
564# @FUNCTION: linux-info_get_any_version 605# @FUNCTION: linux-info_get_any_version
565# @DESCRIPTION: 606# @DESCRIPTION:
566# This attempts to find the version of the sources, and otherwise falls back to 607# This attempts to find the version of the sources, and otherwise falls back to
567# the version of the running kernel. 608# the version of the running kernel.
568linux-info_get_any_version() { 609linux-info_get_any_version() {
569 get_version 610 get_version
570 if [[ $? -ne 0 ]]; then 611 if [[ $? -ne 0 ]]; then
571 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version" 612 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
572 get_running_version 613 get_running_version
573 fi 614 fi
574} 615}
575 616
576 617
577# ebuild check functions 618# ebuild check functions
583check_kernel_built() { 624check_kernel_built() {
584 # if we haven't determined the version yet, we need to 625 # if we haven't determined the version yet, we need to
585 require_configured_kernel 626 require_configured_kernel
586 get_version 627 get_version
587 628
629 local versionh_path
630 if kernel_is -ge 3 7; then
631 versionh_path="include/generated/uapi/linux/version.h"
632 else
633 versionh_path="include/linux/version.h"
634 fi
635
588 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 636 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
589 then 637 then
590 eerror "These sources have not yet been prepared." 638 eerror "These sources have not yet been prepared."
591 eerror "We cannot build against an unprepared tree." 639 eerror "We cannot build against an unprepared tree."
592 eerror "To resolve this, please type the following:" 640 eerror "To resolve this, please type the following:"
593 eerror 641 eerror
606check_modules_supported() { 654check_modules_supported() {
607 # if we haven't determined the version yet, we need too. 655 # if we haven't determined the version yet, we need too.
608 require_configured_kernel 656 require_configured_kernel
609 get_version 657 get_version
610 658
611 if ! linux_chkconfig_builtin "MODULES" 659 if ! linux_chkconfig_builtin "MODULES"; then
612 then
613 eerror "These sources do not support loading external modules." 660 eerror "These sources do not support loading external modules."
614 eerror "to be able to use this module please enable \"Loadable modules support\"" 661 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." 662 eerror "in your kernel, recompile and then try merging this module again."
616 die "No support for external modules in ${KV_FULL} config" 663 die "No support for external modules in ${KV_FULL} config"
617 fi 664 fi
620# @FUNCTION: check_extra_config 667# @FUNCTION: check_extra_config
621# @DESCRIPTION: 668# @DESCRIPTION:
622# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 669# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
623# the prefix ~ is not used) doesn't satisfy the directive. 670# the prefix ~ is not used) doesn't satisfy the directive.
624check_extra_config() { 671check_extra_config() {
625 local config negate die error reworkmodulenames 672 local config negate die error reworkmodulenames
626 local soft_errors_count=0 hard_errors_count=0 config_required=0 673 local soft_errors_count=0 hard_errors_count=0 config_required=0
674 # store the value of the QA check, because otherwise we won't catch usages
675 # after if check_extra_config is called AND other direct calls are done
676 # later.
677 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
627 678
628 # if we haven't determined the version yet, we need to 679 # if we haven't determined the version yet, we need to
629 linux-info_get_any_version 680 linux-info_get_any_version
630 681
631 # 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
632 # 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 "~".
633 for config in ${CONFIG_CHECK} 684 for config in ${CONFIG_CHECK}; do
634 do
635 if [[ "${config:0:1}" != "~" ]]; then 685 if [[ "${config:0:1}" != "~" ]]; then
636 config_required=1 686 config_required=1
637 break 687 break
638 fi 688 fi
639 done 689 done
645 if ! linux_config_exists; then 695 if ! linux_config_exists; then
646 ewarn "Unable to check for the following kernel config options due" 696 ewarn "Unable to check for the following kernel config options due"
647 ewarn "to absence of any configured kernel sources or compiled" 697 ewarn "to absence of any configured kernel sources or compiled"
648 ewarn "config:" 698 ewarn "config:"
649 for config in ${CONFIG_CHECK}; do 699 for config in ${CONFIG_CHECK}; do
700 local_error="ERROR_${config#\~}"
701 msg="${!local_error}"
702 if [[ "x${msg}" == "x" ]]; then
703 local_error="WARNING_${config#\~}"
704 msg="${!local_error}"
705 fi
650 ewarn " - ${config#\~}" 706 ewarn " - ${config#\~}${msg:+ - }${msg}"
651 done 707 done
652 ewarn "You're on your own to make sure they are set if needed." 708 ewarn "You're on your own to make sure they are set if needed."
709 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
653 return 0 710 return 0
654 fi 711 fi
655 else 712 else
656 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 713 require_configured_kernel
657 fi 714 fi
658 715
659 einfo "Checking for suitable kernel configuration options..." 716 einfo "Checking for suitable kernel configuration options..."
660 717
661 for config in ${CONFIG_CHECK} 718 for config in ${CONFIG_CHECK}
734 if [[ ${hard_errors_count} > 0 ]]; then 791 if [[ ${hard_errors_count} > 0 ]]; then
735 eerror "Please check to make sure these options are set correctly." 792 eerror "Please check to make sure these options are set correctly."
736 eerror "Failure to do so may cause unexpected problems." 793 eerror "Failure to do so may cause unexpected problems."
737 eerror "Once you have satisfied these options, please try merging" 794 eerror "Once you have satisfied these options, please try merging"
738 eerror "this package again." 795 eerror "this package again."
796 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
739 die "Incorrect kernel configuration options" 797 die "Incorrect kernel configuration options"
740 elif [[ ${soft_errors_count} > 0 ]]; then 798 elif [[ ${soft_errors_count} > 0 ]]; then
741 ewarn "Please check to make sure these options are set correctly." 799 ewarn "Please check to make sure these options are set correctly."
742 ewarn "Failure to do so may cause unexpected problems." 800 ewarn "Failure to do so may cause unexpected problems."
743 else 801 else
744 eend 0 802 eend 0
745 fi 803 fi
804 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
746} 805}
747 806
748check_zlibinflate() { 807check_zlibinflate() {
749 # if we haven't determined the version yet, we need to 808 # if we haven't determined the version yet, we need to
750 require_configured_kernel 809 require_configured_kernel

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