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Revision 1.71 Revision 1.105
1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2015 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 1.105 2015/05/09 08:03:40 ulm Exp $
4#
5# Original author: John Mylchreest <johnm@gentoo.org>
6# Maintainer: kernel-misc@gentoo.org
7#
8# Please direct your bugs to the current eclass maintainer :)
9 4
10# @ECLASS: linux-info.eclass 5# @ECLASS: linux-info.eclass
11# @MAINTAINER: 6# @MAINTAINER:
12# kernel-misc@gentoo.org 7# kernel-misc@gentoo.org
8# @AUTHOR:
9# Original author: John Mylchreest <johnm@gentoo.org>
13# @BLURB: eclass used for accessing kernel related information 10# @BLURB: eclass used for accessing kernel related information
14# @DESCRIPTION: 11# @DESCRIPTION:
15# This eclass is used as a central eclass for accessing kernel 12# This eclass is used as a central eclass for accessing kernel
16# related information for source or binary already installed. 13# related information for source or binary already installed.
17# It is vital for linux-mod.eclass to function correctly, and is split 14# It is vital for linux-mod.eclass to function correctly, and is split
19# using additional eclasses. 16# using additional eclasses.
20# 17#
21# "kernel config" in this file means: 18# "kernel config" in this file means:
22# The .config of the currently installed sources is used as the first 19# The .config of the currently installed sources is used as the first
23# preference, with a fall-back to bundled config (/proc/config.gz) if available. 20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
21#
22# Before using any of the config-handling functions in this eclass, you must
23# ensure that one of the following functions has been called (in order of
24# preference), otherwise you will get bugs like #364041):
25# linux-info_pkg_setup
26# linux-info_get_any_version
27# get_version
28# get_running_version
24 29
25# A Couple of env vars are available to effect usage of this eclass 30# A Couple of env vars are available to effect usage of this eclass
26# These are as follows: 31# These are as follows:
27 32
28# @ECLASS-VARIABLE: KERNEL_DIR 33# @ECLASS-VARIABLE: KERNEL_DIR
40# You can also check that an option doesn't exist by 45# You can also check that an option doesn't exist by
41# prepending it with an exclamation mark (!). 46# prepending it with an exclamation mark (!).
42# 47#
43# e.g.: CONFIG_CHECK="!MTRR" 48# e.g.: CONFIG_CHECK="!MTRR"
44# 49#
45# To simply warn about a missing option, prepend a '~'. 50# To simply warn about a missing option, prepend a '~'.
46# It may be combined with '!'. 51# It may be combined with '!'.
47# 52#
48# In general, most checks should be non-fatal. The only time fatal checks should 53# In general, most checks should be non-fatal. The only time fatal checks should
49# be used is for building kernel modules or cases that a compile will fail 54# be used is for building kernel modules or cases that a compile will fail
50# without the option. 55# without the option.
99# @ECLASS-VARIABLE: KV_OUT_DIR 104# @ECLASS-VARIABLE: KV_OUT_DIR
100# @DESCRIPTION: 105# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless 106# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
102# KBUILD_OUTPUT is used. This should be used for referencing .config. 107# KBUILD_OUTPUT is used. This should be used for referencing .config.
103 108
104# @ECLASS-VARIABLE: I_KNOW_WHAT_I_AM_DOING
105# @DESCRIPTION:
106# Temporary variable for the migration to making linux-info non-fatal.
107
108# And to ensure all the weirdness with crosscompile 109# And to ensure all the weirdness with crosscompile
109inherit toolchain-funcs versionator 110inherit toolchain-funcs versionator
110 111
111EXPORT_FUNCTIONS pkg_setup 112EXPORT_FUNCTIONS pkg_setup
112
113DEPEND=""
114RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
117DEPEND="kernel_linux? ( virtual/linux-sources )"
118 113
119# Overwritable environment Var's 114# Overwritable environment Var's
120# --------------------------------------- 115# ---------------------------------------
121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 116KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
122 117
153 esac 148 esac
154 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 149 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
155} 150}
156 151
157qeinfo() { qout einfo "${@}" ; } 152qeinfo() { qout einfo "${@}" ; }
153qewarn() { qout ewarn "${@}" ; }
158qeerror() { qout eerror "${@}" ; } 154qeerror() { qout eerror "${@}" ; }
159 155
160# File Functions 156# File Functions
161# --------------------------------------- 157# ---------------------------------------
162 158
166# @DESCRIPTION: 162# @DESCRIPTION:
167# It detects the value of the variable defined in the file configfile. This is 163# It detects the value of the variable defined in the file configfile. This is
168# done by including the configfile, and printing the variable with Make. 164# done by including the configfile, and printing the variable with Make.
169# It WILL break if your makefile has missing dependencies! 165# It WILL break if your makefile has missing dependencies!
170getfilevar() { 166getfilevar() {
171local ERROR basefname basedname myARCH="${ARCH}" 167 local ERROR basefname basedname myARCH="${ARCH}" M="${S}"
172 ERROR=0 168 ERROR=0
173 169
174 [ -z "${1}" ] && ERROR=1 170 [ -z "${1}" ] && ERROR=1
175 [ ! -f "${2}" ] && ERROR=1 171 [ ! -f "${2}" ] && ERROR=1
176 172
182 else 178 else
183 basefname="$(basename ${2})" 179 basefname="$(basename ${2})"
184 basedname="$(dirname ${2})" 180 basedname="$(dirname ${2})"
185 unset ARCH 181 unset ARCH
186 182
183 # We use nonfatal because we want the caller to take care of things #373151
184 [[ ${EAPI:-0} == [0123] ]] && nonfatal() { "$@"; }
185 case ${EBUILD_PHASE_FUNC} in
186 pkg_info|pkg_nofetch|pkg_pretend) M="${T}" ;;
187 esac
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="${M}" ${BUILD_FIXES} -s -f - 2>/dev/null
189 190
190 ARCH=${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 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
433 450
434 if [ -z "${KV_DIR}" ] 451 if [ -z "${KV_DIR}" ]
435 then 452 then
436 if [ -z "${get_version_warning_done}" ]; then 453 if [ -z "${get_version_warning_done}" ]; then
437 get_version_warning_done=1 454 get_version_warning_done=1
438 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 455 qewarn "Unable to find kernel sources at ${KERNEL_DIR}"
439 #qeinfo "This package requires Linux sources." 456 #qeinfo "This package requires Linux sources."
440 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 457 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
441 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 458 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
442 qeinfo "(or the kernel you wish to build against)." 459 qeinfo "(or the kernel you wish to build against)."
443 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 460 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
446 fi 463 fi
447 fi 464 fi
448 return 1 465 return 1
449 fi 466 fi
450 467
468 # See if the kernel dir is actually an output dir. #454294
469 if [ -z "${KBUILD_OUTPUT}" -a -L "${KERNEL_DIR}/source" ]; then
470 KBUILD_OUTPUT=${KERNEL_DIR}
471 KERNEL_DIR=$(readlink -f "${KERNEL_DIR}/source")
472 KV_DIR=${KERNEL_DIR}
473 fi
474
451 if [ -z "${get_version_warning_done}" ]; then 475 if [ -z "${get_version_warning_done}" ]; then
452 qeinfo "Found kernel source directory:" 476 qeinfo "Found kernel source directory:"
453 qeinfo " ${KV_DIR}" 477 qeinfo " ${KV_DIR}"
454 fi 478 fi
455 479
465 489
466 # OK so now we know our sources directory, but they might be using 490 # OK so now we know our sources directory, but they might be using
467 # KBUILD_OUTPUT, and we need this for .config and localversions-* 491 # KBUILD_OUTPUT, and we need this for .config and localversions-*
468 # so we better find it eh? 492 # so we better find it eh?
469 # do we pass KBUILD_OUTPUT on the CLI? 493 # do we pass KBUILD_OUTPUT on the CLI?
470 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 494 local OUTPUT_DIR=${KBUILD_OUTPUT}
471 495
496 # keep track of it
497 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
498
499 if [[ -z ${OUTPUT_DIR} ]]; then
500 # Decide the function used to extract makefile variables.
501 local mkfunc=$(get_makefile_extract_function "${KERNEL_MAKEFILE}")
502
472 # And if we didn't pass it, we can take a nosey in the Makefile 503 # And if we didn't pass it, we can take a nosey in the Makefile.
473 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)" 504 OUTPUT_DIR=$(${mkfunc} KBUILD_OUTPUT "${KERNEL_MAKEFILE}")
474 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 505 fi
475 506
476 # And contrary to existing functions I feel we shouldn't trust the 507 # And contrary to existing functions I feel we shouldn't trust the
477 # directory name to find version information as this seems insane. 508 # directory name to find version information as this seems insane.
478 # so we parse ${KV_DIR}/Makefile 509 # So we parse ${KERNEL_MAKEFILE}. We should be able to trust that
510 # the Makefile is simple enough to use the noexec extract function.
511 # This has been true for every release thus far, and it's faster
512 # than using make to evaluate the Makefile every time.
479 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)" 513 KV_MAJOR=$(getfilevar_noexec VERSION "${KERNEL_MAKEFILE}")
480 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)" 514 KV_MINOR=$(getfilevar_noexec PATCHLEVEL "${KERNEL_MAKEFILE}")
481 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)" 515 KV_PATCH=$(getfilevar_noexec SUBLEVEL "${KERNEL_MAKEFILE}")
482 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)" 516 KV_EXTRA=$(getfilevar_noexec EXTRAVERSION "${KERNEL_MAKEFILE}")
483 517
484 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 518 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
485 then 519 then
486 if [ -z "${get_version_warning_done}" ]; then 520 if [ -z "${get_version_warning_done}" ]; then
487 get_version_warning_done=1 521 get_version_warning_done=1
493 527
494 # and in newer versions we can also pull LOCALVERSION if it is set. 528 # and in newer versions we can also pull LOCALVERSION if it is set.
495 # but before we do this, we need to find if we use a different object directory. 529 # but before we do this, we need to find if we use a different object directory.
496 # This *WILL* break if the user is using localversions, but we assume it was 530 # This *WILL* break if the user is using localversions, but we assume it was
497 # caught before this if they are. 531 # caught before this if they are.
498 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
499 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 532 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
500 533
501 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 534 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
502 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 535 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
503 if [ -n "${KV_OUT_DIR}" ]; 536 if [ -n "${KV_OUT_DIR}" ];
504 then 537 then
505 qeinfo "Found kernel object directory:" 538 qeinfo "Found kernel object directory:"
506 qeinfo " ${KV_OUT_DIR}" 539 qeinfo " ${KV_OUT_DIR}"
507
508 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
509 fi 540 fi
510 # and if we STILL have not got it, then we better just set it to KV_DIR 541 # and if we STILL have not got it, then we better just set it to KV_DIR
511 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 542 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
512 543
513 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 544 # Grab the kernel release from the output directory.
514 if linux_config_src_exists; then 545 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
515 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 546 # this function.
516 KV_LOCAL="${KV_LOCAL//\"/}" 547 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
548 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
549 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
550 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
551 else
552 KV_LOCAL=
553 fi
517 554
518 # For things like git that can append extra stuff: 555 # KV_LOCAL currently contains the full release; discard the first bits.
519 [ -e ${KV_DIR}/scripts/setlocalversion ] && 556 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
520 linux_chkconfig_builtin LOCALVERSION_AUTO && 557
521 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 558 # If the updated local version was not changed, the tree is not prepared.
559 # Clear out KV_LOCAL in that case.
560 # TODO: this does not detect a change in the localversion part between
561 # kernel.release and the value that would be generated.
562 if [ "$KV_LOCAL" = "$tmplocal" ]; then
563 KV_LOCAL=
564 else
565 KV_LOCAL=$tmplocal
522 fi 566 fi
523 567
524 # And we should set KV_FULL to the full expanded version 568 # And we should set KV_FULL to the full expanded version
525 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 569 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
526 570
535# It gets the version of the current running kernel and the result is the same as get_version() if the 579# 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. 580# function can find the sources.
537get_running_version() { 581get_running_version() {
538 KV_FULL=$(uname -r) 582 KV_FULL=$(uname -r)
539 583
584 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
585 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
586 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
587 unset KV_FULL
588 get_version
589 return $?
540 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 590 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
541 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 591 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
542 unset KV_FULL 592 unset KV_FULL
543 get_version 593 get_version
544 return $? 594 return $?
545 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 595 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
546 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 596 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
547 unset KV_FULL 597 unset KV_FULL
548 get_version 598 get_version
549 return $? 599 return $?
550 else 600 else
601 # This handles a variety of weird kernel versions. Make sure to update
602 # tests/linux-info_get_running_version.sh if you want to change this.
603 local kv_full=${KV_FULL//[-+_]*}
551 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 604 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
552 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 605 KV_MINOR=$(get_version_component_range 2 ${kv_full})
553 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 606 KV_PATCH=$(get_version_component_range 3 ${kv_full})
554 KV_PATCH=${KV_PATCH//-*} 607 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
555 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 608 : ${KV_PATCH:=0}
556 && KV_EXTRA="-${KV_FULL#*-}"
557 fi 609 fi
558 return 0 610 return 0
559} 611}
560 612
561# This next function is named with the eclass prefix to avoid conflicts with 613# This next function is named with the eclass prefix to avoid conflicts with
564# @FUNCTION: linux-info_get_any_version 616# @FUNCTION: linux-info_get_any_version
565# @DESCRIPTION: 617# @DESCRIPTION:
566# This attempts to find the version of the sources, and otherwise falls back to 618# This attempts to find the version of the sources, and otherwise falls back to
567# the version of the running kernel. 619# the version of the running kernel.
568linux-info_get_any_version() { 620linux-info_get_any_version() {
569 get_version 621 get_version
570 if [[ $? -ne 0 ]]; then 622 if [[ $? -ne 0 ]]; then
571 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version" 623 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
572 get_running_version 624 get_running_version
573 fi 625 fi
574} 626}
575 627
576 628
577# ebuild check functions 629# ebuild check functions
583check_kernel_built() { 635check_kernel_built() {
584 # if we haven't determined the version yet, we need to 636 # if we haven't determined the version yet, we need to
585 require_configured_kernel 637 require_configured_kernel
586 get_version 638 get_version
587 639
640 local versionh_path
641 if kernel_is -ge 3 7; then
642 versionh_path="include/generated/uapi/linux/version.h"
643 else
644 versionh_path="include/linux/version.h"
645 fi
646
588 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 647 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
589 then 648 then
590 eerror "These sources have not yet been prepared." 649 eerror "These sources have not yet been prepared."
591 eerror "We cannot build against an unprepared tree." 650 eerror "We cannot build against an unprepared tree."
592 eerror "To resolve this, please type the following:" 651 eerror "To resolve this, please type the following:"
593 eerror 652 eerror
606check_modules_supported() { 665check_modules_supported() {
607 # if we haven't determined the version yet, we need too. 666 # if we haven't determined the version yet, we need too.
608 require_configured_kernel 667 require_configured_kernel
609 get_version 668 get_version
610 669
611 if ! linux_chkconfig_builtin "MODULES" 670 if ! linux_chkconfig_builtin "MODULES"; then
612 then
613 eerror "These sources do not support loading external modules." 671 eerror "These sources do not support loading external modules."
614 eerror "to be able to use this module please enable \"Loadable modules support\"" 672 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." 673 eerror "in your kernel, recompile and then try merging this module again."
616 die "No support for external modules in ${KV_FULL} config" 674 die "No support for external modules in ${KV_FULL} config"
617 fi 675 fi
620# @FUNCTION: check_extra_config 678# @FUNCTION: check_extra_config
621# @DESCRIPTION: 679# @DESCRIPTION:
622# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e. 680# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
623# the prefix ~ is not used) doesn't satisfy the directive. 681# the prefix ~ is not used) doesn't satisfy the directive.
624check_extra_config() { 682check_extra_config() {
625 local config negate die error reworkmodulenames 683 local config negate die error reworkmodulenames
626 local soft_errors_count=0 hard_errors_count=0 config_required=0 684 local soft_errors_count=0 hard_errors_count=0 config_required=0
685 # store the value of the QA check, because otherwise we won't catch usages
686 # after if check_extra_config is called AND other direct calls are done
687 # later.
688 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
627 689
628 # if we haven't determined the version yet, we need to 690 # if we haven't determined the version yet, we need to
629 linux-info_get_any_version 691 linux-info_get_any_version
630 692
631 # Determine if we really need a .config. The only time when we don't need 693 # 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 "~". 694 # one is when all of the CONFIG_CHECK options are prefixed with "~".
633 for config in ${CONFIG_CHECK} 695 for config in ${CONFIG_CHECK}; do
634 do
635 if [[ "${config:0:1}" != "~" ]]; then 696 if [[ "${config:0:1}" != "~" ]]; then
636 config_required=1 697 config_required=1
637 break 698 break
638 fi 699 fi
639 done 700 done
645 if ! linux_config_exists; then 706 if ! linux_config_exists; then
646 ewarn "Unable to check for the following kernel config options due" 707 ewarn "Unable to check for the following kernel config options due"
647 ewarn "to absence of any configured kernel sources or compiled" 708 ewarn "to absence of any configured kernel sources or compiled"
648 ewarn "config:" 709 ewarn "config:"
649 for config in ${CONFIG_CHECK}; do 710 for config in ${CONFIG_CHECK}; do
711 local_error="ERROR_${config#\~}"
712 msg="${!local_error}"
713 if [[ "x${msg}" == "x" ]]; then
714 local_error="WARNING_${config#\~}"
715 msg="${!local_error}"
716 fi
650 ewarn " - ${config#\~}" 717 ewarn " - ${config#\~}${msg:+ - }${msg}"
651 done 718 done
652 ewarn "You're on your own to make sure they are set if needed." 719 ewarn "You're on your own to make sure they are set if needed."
720 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
653 return 0 721 return 0
654 fi 722 fi
655 else 723 else
656 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel 724 require_configured_kernel
657 fi 725 fi
658 726
659 einfo "Checking for suitable kernel configuration options..." 727 einfo "Checking for suitable kernel configuration options..."
660 728
661 for config in ${CONFIG_CHECK} 729 for config in ${CONFIG_CHECK}
734 if [[ ${hard_errors_count} > 0 ]]; then 802 if [[ ${hard_errors_count} > 0 ]]; then
735 eerror "Please check to make sure these options are set correctly." 803 eerror "Please check to make sure these options are set correctly."
736 eerror "Failure to do so may cause unexpected problems." 804 eerror "Failure to do so may cause unexpected problems."
737 eerror "Once you have satisfied these options, please try merging" 805 eerror "Once you have satisfied these options, please try merging"
738 eerror "this package again." 806 eerror "this package again."
807 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
739 die "Incorrect kernel configuration options" 808 die "Incorrect kernel configuration options"
740 elif [[ ${soft_errors_count} > 0 ]]; then 809 elif [[ ${soft_errors_count} > 0 ]]; then
741 ewarn "Please check to make sure these options are set correctly." 810 ewarn "Please check to make sure these options are set correctly."
742 ewarn "Failure to do so may cause unexpected problems." 811 ewarn "Failure to do so may cause unexpected problems."
743 else 812 else
744 eend 0 813 eend 0
745 fi 814 fi
815 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
746} 816}
747 817
748check_zlibinflate() { 818check_zlibinflate() {
749 # if we haven't determined the version yet, we need to 819 # if we haven't determined the version yet, we need to
750 require_configured_kernel 820 require_configured_kernel

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