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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 1.39 2006/02/08 12:57:52 brix Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.56 2008/10/31 22:01:32 dsd Exp $
4# 4#
5# Description: This eclass is used as a central eclass for accessing kernel
6# related information for sources already installed.
7# It is vital for linux-mod to function correctly, and is split
8# out so that any ebuild behaviour "templates" are abstracted out
9# using additional eclasses.
10#
11# Maintainer: John Mylchreest <johnm@gentoo.org> 5# Original author: John Mylchreest <johnm@gentoo.org>
12# Copyright 2004 Gentoo Linux 6# Maintainer: kernel-misc@gentoo.org
13# 7#
14# Please direct your bugs to the current eclass maintainer :) 8# Please direct your bugs to the current eclass maintainer :)
9
10# @ECLASS: linux-info.eclass
11# @MAINTAINER:
12# kernel-misc@gentoo.org
13# @BLURB: eclass used for accessing kernel related information
14# @DESCRIPTION:
15# This eclass is used as a central eclass for accessing kernel
16# related information for sources already installed.
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
19# using additional eclasses.
15 20
16# A Couple of env vars are available to effect usage of this eclass 21# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 22# These are as follows:
18# 23
19# Env Var Option Description 24# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 25# @DESCRIPTION:
21# sources. 26# A string containing the directory of the target kernel sources. The default value is
27# "/usr/src/linux"
28
29# @ECLASS-VARIABLE: CONFIG_CHECK
30# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 31# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 32# proceeding with the install.
33#
34# e.g.: CONFIG_CHECK="MTRR"
35#
24# You can also check that an option doesn't exist by 36# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 37# prepending it with an exclamation mark (!).
38#
26# ie: CONFIG_CHECK="!MTRR" 39# e.g.: CONFIG_CHECK="!MTRR"
40#
27# To simply warn about a missing option, prepend a '~'. 41# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check 42
43# @ECLASS-VARIABLE: ERROR_<CFG>
44# @DESCRIPTION:
45# A string containing the error message to display when the check against CONFIG_CHECK
29# fails. <CFG> should reference the appropriate option 46# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
30# as above. ie: ERROR_MTRR="MTRR exists in the .config 47#
31# but shouldn't!!" 48# e.g.: ERROR_MTRR="MTRR exists in the .config but shouldn't!!"
32# KBUILD_OUTPUT <string> This is passed on commandline, or can be set from 49
33# the kernel makefile. This contains the directory 50# @ECLASS-VARIABLE: KBUILD_OUTPUT
51# @DESCRIPTION:
52# A string passed on commandline, or set from the kernel makefile. It contains the directory
34# which is to be used as the kernel object directory. 53# which is to be used as the kernel object directory.
35 54
36# There are also a couple of variables which are set by this, and shouldn't be 55# There are also a couple of variables which are set by this, and shouldn't be
37# set by hand. These are as follows: 56# set by hand. These are as follows:
38# 57
39# Env Var Option Description 58# @ECLASS-VARIABLE: KV_FULL
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 59# @DESCRIPTION:
41# KV_MAJOR <integer> The kernel major version. ie: 2 60# A read-only variable. It's a string containing the full kernel version. ie: 2.6.9-gentoo-johnm-r1
42# KV_MINOR <integer> The kernel minor version. ie: 6 61
43# KV_PATCH <integer> The kernel patch version. ie: 9 62# @ECLASS-VARIABLE: KV_MAJOR
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 63# @DESCRIPTION:
45# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 64# A read-only variable. It's an integer containing the kernel major version. ie: 2
46# KV_DIR <string> The kernel source directory, will be null if 65
66# @ECLASS-VARIABLE: KV_MINOR
67# @DESCRIPTION:
68# A read-only variable. It's an integer containing the kernel minor version. ie: 6
69
70# @ECLASS-VARIABLE: KV_PATCH
71# @DESCRIPTION:
72# A read-only variable. It's an integer containing the kernel patch version. ie: 9
73
74# @ECLASS-VARIABLE: KV_EXTRA
75# @DESCRIPTION:
76# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
77
78# @ECLASS-VARIABLE: KV_LOCAL
79# @DESCRIPTION:
80# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
81
82# @ECLASS-VARIABLE: KV_DIR
83# @DESCRIPTION:
84# A read-only variable. It's a string containing the kernel source directory, will be null if
47# KERNEL_DIR is invalid. 85# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 86
49# koutput is used. This should be used for referencing 87# @ECLASS-VARIABLE: KV_OUT_DIR
50# .config. 88# @DESCRIPTION:
89# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
90# KBUILD_OUTPUT is used. This should be used for referencing .config.
51 91
52# And to ensure all the weirdness with crosscompile 92# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator 93inherit toolchain-funcs versionator
54 94
55EXPORT_FUNCTIONS pkg_setup 95EXPORT_FUNCTIONS pkg_setup
56 96
57DEPEND="virtual/linux-sources" 97DEPEND="kernel_linux? ( virtual/linux-sources )"
58RDEPEND="" 98RDEPEND=""
59 99
60# Overwritable environment Var's 100# Overwritable environment Var's
61# --------------------------------------- 101# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 102KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
67case ${ARCH} in 107case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 108 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 109 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac 110esac
71 111
72# These are legacy wrappers for toolchain-funcs. 112# @FUNCTION: set_arch_to_kernel
73# I dont like them here, but oh well. 113# @DESCRIPTION:
114# Set the env ARCH to match what the kernel expects.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 115set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
116# @FUNCTION: set_arch_to_portage
117# @DESCRIPTION:
118# Set the env ARCH to match what portage expects.
75set_arch_to_portage() { export ARCH="$(tc-arch)"; } 119set_arch_to_portage() { export ARCH=$(tc-arch); }
76 120
77# qeinfo "Message" 121# qeinfo "Message"
78# ------------------- 122# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE 123# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output. 124# should not have visible output.
95qeerror() { qout eerror "${@}" ; } 139qeerror() { qout eerror "${@}" ; }
96 140
97# File Functions 141# File Functions
98# --------------------------------------- 142# ---------------------------------------
99 143
100# getfilevar accepts 2 vars as follows: 144# @FUNCTION: getfilevar
101# getfilevar <VARIABLE> <CONFIGFILE> 145# @USAGE: variable configfile
102 146# @RETURN: the value of the variable
147# @DESCRIPTION:
148# It detects the value of the variable defined in the file configfile
103getfilevar() { 149getfilevar() {
104local ERROR workingdir basefname basedname myARCH="${ARCH}" 150local ERROR workingdir basefname basedname myARCH="${ARCH}"
105 ERROR=0 151 ERROR=0
106 152
107 [ -z "${1}" ] && ERROR=1 153 [ -z "${1}" ] && ERROR=1
117 basefname="$(basename ${2})" 163 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 164 basedname="$(dirname ${2})"
119 unset ARCH 165 unset ARCH
120 166
121 cd "${basedname}" 167 cd "${basedname}"
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 168 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
123 make ${BUILD_FIXES} -s -f - e 2>/dev/null 169 make M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
124 cd "${workingdir}" 170 cd "${workingdir}"
125 171
126 ARCH=${myARCH} 172 ARCH=${myARCH}
127 fi 173 fi
128} 174}
129 175
176
177# @FUNCTION: linux_config_exists
178# @RETURN: true or false
179# @DESCRIPTION:
180# It returns true if .config exists otherwise false
181linux_config_exists() {
182 [ -s "${KV_OUT_DIR}/.config" ]
183}
184
185# @FUNCTION: require_configured_kernel
186# @DESCRIPTION:
187# This function verifies that the current kernel is configured (it checks against the existence of .config)
188# otherwise it dies.
189require_configured_kernel() {
190 if ! linux_config_exists; then
191 qeerror "Could not find a usable .config in the kernel source directory."
192 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
193 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
194 qeerror "it points to the necessary object directory so that it might find .config."
195 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
196 fi
197}
198
199# @FUNCTION: linux_chkconfig_present
200# @USAGE: option
201# @RETURN: true or false
202# @DESCRIPTION:
203# It checks that CONFIG_<option>=y or CONFIG_<option>=n is present in the current kernel .config
130linux_chkconfig_present() { 204linux_chkconfig_present() {
131local RESULT 205local RESULT
206 require_configured_kernel
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 207 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 208 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 209}
135 210
211# @FUNCTION: linux_chkconfig_module
212# @USAGE: option
213# @RETURN: true or false
214# @DESCRIPTION:
215# It checks that CONFIG_<option>=m is present in the current kernel .config
136linux_chkconfig_module() { 216linux_chkconfig_module() {
137local RESULT 217local RESULT
218 require_configured_kernel
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 219 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
139 [ "${RESULT}" = "m" ] && return 0 || return 1 220 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 221}
141 222
223# @FUNCTION: linux_chkconfig_builtin
224# @USAGE: option
225# @RETURN: true or false
226# @DESCRIPTION:
227# It checks that CONFIG_<option>=y is present in the current kernel .config
142linux_chkconfig_builtin() { 228linux_chkconfig_builtin() {
143local RESULT 229local RESULT
230 require_configured_kernel
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 231 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
145 [ "${RESULT}" = "y" ] && return 0 || return 1 232 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 233}
147 234
235# @FUNCTION: linux_chkconfig_string
236# @USAGE: option
237# @RETURN: CONFIG_<option>
238# @DESCRIPTION:
239# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
148linux_chkconfig_string() { 240linux_chkconfig_string() {
241 require_configured_kernel
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 242 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config"
150} 243}
151 244
152# Versioning Functions 245# Versioning Functions
153# --------------------------------------- 246# ---------------------------------------
154 247
155# kernel_is returns true when the version is the same as the passed version 248# @FUNCTION: kernel_is
249# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
250# @RETURN: true or false
251# @DESCRIPTION:
252# It returns true when the current kernel version satisfies the comparison against the passed version.
253# -eq is the default comparison.
156# 254#
255# @CODE
157# For Example where KV = 2.6.9 256# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 257# kernel_is 2 4 returns false
159# kernel_is 2 returns true 258# kernel_is 2 returns true
160# kernel_is 2 6 returns true 259# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 260# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 261# kernel_is 2 6 9 returns true
163# 262# @CODE
263
164# got the jist yet? 264# got the jist yet?
165 265
166kernel_is() { 266kernel_is() {
167 # if we haven't determined the version yet, we need too. 267 # if we haven't determined the version yet, we need to.
168 get_version; 268 get_version
169 local operator test value x=0 y=0 z=0 269 local operator test value x=0 y=0 z=0
170 270
171 case ${1} in 271 case ${1} in
172 lt) operator="-lt"; shift;; 272 lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 273 gt) operator="-gt"; shift;;
209 done 309 done
210 x=${x/ /} 310 x=${x/ /}
211 echo ${x} 311 echo ${x}
212} 312}
213 313
314# @FUNCTION: get_version
315# @DESCRIPTION:
316# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
317# (if KV_FULL is already set it does nothing).
318#
319# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
320#
321# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
322# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
323# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 324get_version() {
215 local kbuild_output 325 local kbuild_output
216 326
217 # no need to execute this twice assuming KV_FULL is populated. 327 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 328 # we can force by unsetting KV_FULL
278 388
279 # and in newer versions we can also pull LOCALVERSION if it is set. 389 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 390 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 391 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 392 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \ 393 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 394 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 395
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 396 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 397 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 398 if [ -n "${KV_OUT_DIR}" ];
289 then 399 then
290 qeinfo "Found kernel object directory:" 400 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 401 qeinfo " ${KV_OUT_DIR}"
292 402
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})" 403 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 404 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 405 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 406 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 407
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 408 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
409 if linux_config_exists; then
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 410 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
300 KV_LOCAL="${KV_LOCAL//\"/}" 411 KV_LOCAL="${KV_LOCAL//\"/}"
412
413 # For things like git that can append extra stuff:
414 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
415 linux_chkconfig_builtin LOCALVERSION_AUTO &&
416 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})"
417 fi
301 418
302 # And we should set KV_FULL to the full expanded version 419 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 420 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 421
305 qeinfo "Found sources for kernel version:" 422 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 423 qeinfo " ${KV_FULL}"
307 424
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 425 return 0
318} 426}
319 427
428# @FUNCTION: get_running_version
429# @DESCRIPTION:
430# It gets the version of the current running kernel and the result is the same as get_version() if the
431# function can find the sources.
320get_running_version() { 432get_running_version() {
321 KV_FULL=$(uname -r) 433 KV_FULL=$(uname -r)
322 434
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 435 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 436 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
343 455
344 456
345# ebuild check functions 457# ebuild check functions
346# --------------------------------------- 458# ---------------------------------------
347 459
460# @FUNCTION: check_kernel_built
461# @DESCRIPTION:
462# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 463check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 464 # if we haven't determined the version yet, we need to
465 require_configured_kernel
350 get_version; 466 get_version
351 467
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 468 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
353 then 469 then
354 eerror "These sources have not yet been prepared." 470 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 471 eerror "We cannot build against an unprepared tree."
362 eerror "Then please try merging this module again." 478 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 479 die "Kernel sources need compiling first"
364 fi 480 fi
365} 481}
366 482
483# @FUNCTION: check_modules_supported
484# @DESCRIPTION:
485# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 486check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 487 # if we haven't determined the version yet, we need too.
488 require_configured_kernel
369 get_version; 489 get_version
370 490
371 if ! linux_chkconfig_builtin "MODULES" 491 if ! linux_chkconfig_builtin "MODULES"
372 then 492 then
373 eerror "These sources do not support loading external modules." 493 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 494 eerror "to be able to use this module please enable \"Loadable modules support\""
375 eerror "in your kernel, recompile and then try merging this module again." 495 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 496 die "No support for external modules in ${KV_FULL} config"
377 fi 497 fi
378} 498}
379 499
500# @FUNCTION: check_extra_config
501# @DESCRIPTION:
502# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
503# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 504check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 505 local config negate die error reworkmodulenames
506 local soft_errors_count=0 hard_errors_count=0 config_required=0
383 507
384 # if we haven't determined the version yet, we need too. 508 # if we haven't determined the version yet, we need to
385 get_version; 509 get_version
386 510
511 # Determine if we really need a .config. The only time when we don't need
512 # one is when all of the CONFIG_CHECK options are prefixed with "~".
513 for config in ${CONFIG_CHECK}
514 do
515 if [[ "${config:0:1}" != "~" ]]; then
516 config_required=1
517 break
518 fi
519 done
520
521 if [[ ${config_required} == 0 ]]; then
522 # In the case where we don't require a .config, we can now bail out
523 # if the user has no .config as there is nothing to do. Otherwise
524 # code later will cause a failure due to missing .config.
525 if ! linux_config_exists; then
526 return 0
527 fi
528 else
529 require_configured_kernel
530 fi
531
387 einfo "Checking for suitable kernel configuration options:" 532 einfo "Checking for suitable kernel configuration options..."
533
388 for config in ${CONFIG_CHECK} 534 for config in ${CONFIG_CHECK}
389 do 535 do
390 # if we specify any fatal, ensure we honor them 536 # if we specify any fatal, ensure we honor them
391 die=1 537 die=1
392 error=0 538 error=0
393 negate=0 539 negate=0
394 reworkmodulenames=0 540 reworkmodulenames=0
395 541
396 if [[ -z ${config//\!*} ]]; then 542 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 543 die=0
398 config=${config:1} 544 config=${config:1}
399 fi 545 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 546 die=0
402 reworkmodulenames=1 547 reworkmodulenames=1
403 config=${config:1} 548 config=${config:1}
404 fi 549 fi
405 if [[ -z ${config/\~*} ]]; then 550 if [[ ${config:0:1} == "!" ]]; then
406 die=0 551 negate=1
407 config=${config:1} 552 config=${config:1}
408 fi 553 fi
409 554
410 if [[ ${negate} == 1 ]]; then 555 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 556 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 557 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 558 local temp_config="${config//*:}" i n
414 config="${config//:*}" 559 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 560 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 561 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 562 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 563 [[ -z ${n//\(*} ]] && \
422 fi 567 fi
423 else 568 else
424 linux_chkconfig_present ${config} || error=1 569 linux_chkconfig_present ${config} || error=1
425 fi 570 fi
426 571
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 572 if [[ ${error} > 0 ]]; then
573 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 574 local_error="ERROR_${config}"
575 local_error="${!local_error}"
576
577 if [[ -z "${local_error}" ]]; then
578 # using old, deprecated format.
579 local_error="${config}_ERROR"
433 local_error="${!local_error}" 580 local_error="${!local_error}"
434 581 fi
435 if [[ -z "${local_error}" ]]; then 582 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 583 #soft errors can be warnings
437 local_error="${config}_ERROR" 584 local_error="WARNING_${config}"
438 local_error="${!local_error}" 585 local_error="${!local_error}"
586 if [[ -n "${local_error}" ]] ; then
587 report_func="ewarn"
439 fi 588 fi
440
441 if [[ -z "${local_error}" ]]; then
442 [[ ${error} == 1 ]] \
443 && local_error="is not set when it should be." \
444 || local_error="should not be set. But it is."
445 local_error="CONFIG_${config}:\t ${local_error}"
446 fi
447 eerror " ${local_error}"
448 fi 589 fi
590
591 if [[ -z "${local_error}" ]]; then
592 [[ ${error} == 1 ]] \
593 && local_error="is not set when it should be." \
594 || local_error="should not be set. But it is."
595 local_error="CONFIG_${config}:\t ${local_error}"
596 fi
597 if [[ ${die} == 0 ]]; then
598 ${report_func} " ${local_error}"
599 soft_errors_count=$[soft_errors_count + 1]
600 else
601 ${report_func} " ${local_error}"
602 hard_errors_count=$[hard_errors_count + 1]
603 fi
449 fi 604 fi
450 done 605 done
451 606
452 if [[ ${error} > 0 ]]; then 607 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 608 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 609 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 610 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 611 eerror "this package again."
458 die "Incorrect kernel configuration options" 612 die "Incorrect kernel configuration options"
459 fi 613 elif [[ ${soft_errors_count} > 0 ]]; then
614 ewarn "Please check to make sure these options are set correctly."
615 ewarn "Failure to do so may cause unexpected problems."
616 else
617 eend 0
460 fi 618 fi
461} 619}
462 620
463check_zlibinflate() { 621check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 622 # if we haven't determined the version yet, we need to
623 require_configured_kernel
465 get_version; 624 get_version
466 625
467 # although I restructured this code - I really really really dont support it! 626 # although I restructured this code - I really really really dont support it!
468 627
469 # bug #27882 - zlib routines are only linked into the kernel 628 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 629 # if something compiled into the kernel calls them
530} 689}
531 690
532################################ 691################################
533# Default pkg_setup 692# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 693# Also used when inheriting linux-mod to force a get_version call
535 694# @FUNCTION: linux-info_pkg_setup
695# @DESCRIPTION:
696# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
697# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 698linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 699 get_version || die "Unable to calculate Linux Kernel version"
700
701 if kernel_is 2 4; then
702 if [ "$( gcc-major-version )" -eq "4" ] ; then
703 echo
704 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
705 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
706 echo
707 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
708 ewarn "newer kernel that supports gcc-4."
709 echo
710 ewarn "Also be aware that bugreports about gcc-4 not working"
711 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
712 echo
713 epause 10
714 fi
715 fi
716
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 717 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 718}

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