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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 1.60 2009/07/04 18:39:33 robbat2 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 basefname basedname myARCH="${ARCH}"
105 ERROR=0 151 ERROR=0
106 152
107 [ -z "${1}" ] && ERROR=1 153 [ -z "${1}" ] && ERROR=1
108 [ ! -f "${2}" ] && ERROR=1 154 [ ! -f "${2}" ] && ERROR=1
109 155
111 then 157 then
112 echo -e "\n" 158 echo -e "\n"
113 eerror "getfilevar requires 2 variables, with the second a valid file." 159 eerror "getfilevar requires 2 variables, with the second a valid file."
114 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 160 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
115 else 161 else
116 workingdir="${PWD}"
117 basefname="$(basename ${2})" 162 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 163 basedname="$(dirname ${2})"
119 unset ARCH 164 unset ARCH
120 165
121 cd "${basedname}" 166 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 167 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
123 make ${BUILD_FIXES} -s -f - e 2>/dev/null
124 cd "${workingdir}"
125 168
126 ARCH=${myARCH} 169 ARCH=${myARCH}
127 fi 170 fi
128} 171}
129 172
173
174# @FUNCTION: linux_config_exists
175# @RETURN: true or false
176# @DESCRIPTION:
177# It returns true if .config exists otherwise false
178linux_config_exists() {
179 [ -s "${KV_OUT_DIR}/.config" ]
180}
181
182# @FUNCTION: require_configured_kernel
183# @DESCRIPTION:
184# This function verifies that the current kernel is configured (it checks against the existence of .config)
185# otherwise it dies.
186require_configured_kernel() {
187 if ! linux_config_exists; then
188 qeerror "Could not find a usable .config in the kernel source directory."
189 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
190 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
191 qeerror "it points to the necessary object directory so that it might find .config."
192 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
193 fi
194}
195
196# @FUNCTION: linux_chkconfig_present
197# @USAGE: option
198# @RETURN: true or false
199# @DESCRIPTION:
200# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
130linux_chkconfig_present() { 201linux_chkconfig_present() {
131local RESULT 202local RESULT
203 require_configured_kernel
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 204 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 205 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 206}
135 207
208# @FUNCTION: linux_chkconfig_module
209# @USAGE: option
210# @RETURN: true or false
211# @DESCRIPTION:
212# It checks that CONFIG_<option>=m is present in the current kernel .config
136linux_chkconfig_module() { 213linux_chkconfig_module() {
137local RESULT 214local RESULT
215 require_configured_kernel
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 216 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
139 [ "${RESULT}" = "m" ] && return 0 || return 1 217 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 218}
141 219
220# @FUNCTION: linux_chkconfig_builtin
221# @USAGE: option
222# @RETURN: true or false
223# @DESCRIPTION:
224# It checks that CONFIG_<option>=y is present in the current kernel .config
142linux_chkconfig_builtin() { 225linux_chkconfig_builtin() {
143local RESULT 226local RESULT
227 require_configured_kernel
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 228 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
145 [ "${RESULT}" = "y" ] && return 0 || return 1 229 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 230}
147 231
232# @FUNCTION: linux_chkconfig_string
233# @USAGE: option
234# @RETURN: CONFIG_<option>
235# @DESCRIPTION:
236# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
148linux_chkconfig_string() { 237linux_chkconfig_string() {
238 require_configured_kernel
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 239 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config"
150} 240}
151 241
152# Versioning Functions 242# Versioning Functions
153# --------------------------------------- 243# ---------------------------------------
154 244
155# kernel_is returns true when the version is the same as the passed version 245# @FUNCTION: kernel_is
246# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
247# @RETURN: true or false
248# @DESCRIPTION:
249# It returns true when the current kernel version satisfies the comparison against the passed version.
250# -eq is the default comparison.
156# 251#
252# @CODE
157# For Example where KV = 2.6.9 253# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 254# kernel_is 2 4 returns false
159# kernel_is 2 returns true 255# kernel_is 2 returns true
160# kernel_is 2 6 returns true 256# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 257# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 258# kernel_is 2 6 9 returns true
163# 259# @CODE
260
164# got the jist yet? 261# got the jist yet?
165 262
166kernel_is() { 263kernel_is() {
167 # if we haven't determined the version yet, we need too. 264 # if we haven't determined the version yet, we need to.
168 get_version; 265 get_version
169 local operator test value x=0 y=0 z=0 266 local operator test value x=0 y=0 z=0
170 267
171 case ${1} in 268 case ${1} in
172 lt) operator="-lt"; shift;; 269 lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 270 gt) operator="-gt"; shift;;
209 done 306 done
210 x=${x/ /} 307 x=${x/ /}
211 echo ${x} 308 echo ${x}
212} 309}
213 310
311# @FUNCTION: get_version
312# @DESCRIPTION:
313# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
314# (if KV_FULL is already set it does nothing).
315#
316# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
317#
318# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
319# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
320# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 321get_version() {
215 local kbuild_output 322 local kbuild_output
216 323
217 # no need to execute this twice assuming KV_FULL is populated. 324 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 325 # we can force by unsetting KV_FULL
278 385
279 # and in newer versions we can also pull LOCALVERSION if it is set. 386 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 387 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 388 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 389 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \ 390 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 391 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 392
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 393 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 394 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 395 if [ -n "${KV_OUT_DIR}" ];
289 then 396 then
290 qeinfo "Found kernel object directory:" 397 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 398 qeinfo " ${KV_OUT_DIR}"
292 399
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})" 400 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 401 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 402 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 403 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 404
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 405 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
406 if linux_config_exists; then
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 407 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
300 KV_LOCAL="${KV_LOCAL//\"/}" 408 KV_LOCAL="${KV_LOCAL//\"/}"
409
410 # For things like git that can append extra stuff:
411 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
412 linux_chkconfig_builtin LOCALVERSION_AUTO &&
413 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})"
414 fi
301 415
302 # And we should set KV_FULL to the full expanded version 416 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 417 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 418
305 qeinfo "Found sources for kernel version:" 419 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 420 qeinfo " ${KV_FULL}"
307 421
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 422 return 0
318} 423}
319 424
425# @FUNCTION: get_running_version
426# @DESCRIPTION:
427# It gets the version of the current running kernel and the result is the same as get_version() if the
428# function can find the sources.
320get_running_version() { 429get_running_version() {
321 KV_FULL=$(uname -r) 430 KV_FULL=$(uname -r)
322 431
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 432 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 433 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
343 452
344 453
345# ebuild check functions 454# ebuild check functions
346# --------------------------------------- 455# ---------------------------------------
347 456
457# @FUNCTION: check_kernel_built
458# @DESCRIPTION:
459# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 460check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 461 # if we haven't determined the version yet, we need to
462 require_configured_kernel
350 get_version; 463 get_version
351 464
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 465 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
353 then 466 then
354 eerror "These sources have not yet been prepared." 467 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 468 eerror "We cannot build against an unprepared tree."
362 eerror "Then please try merging this module again." 475 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 476 die "Kernel sources need compiling first"
364 fi 477 fi
365} 478}
366 479
480# @FUNCTION: check_modules_supported
481# @DESCRIPTION:
482# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 483check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 484 # if we haven't determined the version yet, we need too.
485 require_configured_kernel
369 get_version; 486 get_version
370 487
371 if ! linux_chkconfig_builtin "MODULES" 488 if ! linux_chkconfig_builtin "MODULES"
372 then 489 then
373 eerror "These sources do not support loading external modules." 490 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 491 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." 492 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 493 die "No support for external modules in ${KV_FULL} config"
377 fi 494 fi
378} 495}
379 496
497# @FUNCTION: check_extra_config
498# @DESCRIPTION:
499# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
500# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 501check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 502 local config negate die error reworkmodulenames
503 local soft_errors_count=0 hard_errors_count=0 config_required=0
383 504
384 # if we haven't determined the version yet, we need too. 505 # if we haven't determined the version yet, we need to
385 get_version; 506 get_version
386 507
508 # Determine if we really need a .config. The only time when we don't need
509 # one is when all of the CONFIG_CHECK options are prefixed with "~".
510 for config in ${CONFIG_CHECK}
511 do
512 if [[ "${config:0:1}" != "~" ]]; then
513 config_required=1
514 break
515 fi
516 done
517
518 if [[ ${config_required} == 0 ]]; then
519 # In the case where we don't require a .config, we can now bail out
520 # if the user has no .config as there is nothing to do. Otherwise
521 # code later will cause a failure due to missing .config.
522 if ! linux_config_exists; then
523 ewarn "Unable to check for the following kernel config options due"
524 ewarn "to absence of any configured kernel sources:"
525 for config in ${CONFIG_CHECK}; do
526 ewarn " - ${config#\~}"
527 done
528 ewarn "You're on your own to make sure they are set if needed."
529 return 0
530 fi
531 else
532 require_configured_kernel
533 fi
534
387 einfo "Checking for suitable kernel configuration options:" 535 einfo "Checking for suitable kernel configuration options..."
536
388 for config in ${CONFIG_CHECK} 537 for config in ${CONFIG_CHECK}
389 do 538 do
390 # if we specify any fatal, ensure we honor them 539 # if we specify any fatal, ensure we honor them
391 die=1 540 die=1
392 error=0 541 error=0
393 negate=0 542 negate=0
394 reworkmodulenames=0 543 reworkmodulenames=0
395 544
396 if [[ -z ${config//\!*} ]]; then 545 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 546 die=0
398 config=${config:1} 547 config=${config:1}
399 fi 548 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 549 die=0
402 reworkmodulenames=1 550 reworkmodulenames=1
403 config=${config:1} 551 config=${config:1}
404 fi 552 fi
405 if [[ -z ${config/\~*} ]]; then 553 if [[ ${config:0:1} == "!" ]]; then
406 die=0 554 negate=1
407 config=${config:1} 555 config=${config:1}
408 fi 556 fi
409 557
410 if [[ ${negate} == 1 ]]; then 558 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 559 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 560 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 561 local temp_config="${config//*:}" i n
414 config="${config//:*}" 562 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 563 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 564 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 565 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 566 [[ -z ${n//\(*} ]] && \
422 fi 570 fi
423 else 571 else
424 linux_chkconfig_present ${config} || error=1 572 linux_chkconfig_present ${config} || error=1
425 fi 573 fi
426 574
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 575 if [[ ${error} > 0 ]]; then
576 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 577 local_error="ERROR_${config}"
578 local_error="${!local_error}"
579
580 if [[ -z "${local_error}" ]]; then
581 # using old, deprecated format.
582 local_error="${config}_ERROR"
433 local_error="${!local_error}" 583 local_error="${!local_error}"
434 584 fi
435 if [[ -z "${local_error}" ]]; then 585 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 586 #soft errors can be warnings
437 local_error="${config}_ERROR" 587 local_error="WARNING_${config}"
438 local_error="${!local_error}" 588 local_error="${!local_error}"
589 if [[ -n "${local_error}" ]] ; then
590 report_func="ewarn"
439 fi 591 fi
440
441 if [[ -z "${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 " ${local_error}"
448 fi 592 fi
593
594 if [[ -z "${local_error}" ]]; then
595 [[ ${error} == 1 ]] \
596 && local_error="is not set when it should be." \
597 || local_error="should not be set. But it is."
598 local_error="CONFIG_${config}:\t ${local_error}"
599 fi
600 if [[ ${die} == 0 ]]; then
601 ${report_func} " ${local_error}"
602 soft_errors_count=$[soft_errors_count + 1]
603 else
604 ${report_func} " ${local_error}"
605 hard_errors_count=$[hard_errors_count + 1]
606 fi
449 fi 607 fi
450 done 608 done
451 609
452 if [[ ${error} > 0 ]]; then 610 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 611 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 612 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" 613 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 614 eerror "this package again."
458 die "Incorrect kernel configuration options" 615 die "Incorrect kernel configuration options"
459 fi 616 elif [[ ${soft_errors_count} > 0 ]]; then
617 ewarn "Please check to make sure these options are set correctly."
618 ewarn "Failure to do so may cause unexpected problems."
619 else
620 eend 0
460 fi 621 fi
461} 622}
462 623
463check_zlibinflate() { 624check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 625 # if we haven't determined the version yet, we need to
626 require_configured_kernel
465 get_version; 627 get_version
466 628
467 # although I restructured this code - I really really really dont support it! 629 # although I restructured this code - I really really really dont support it!
468 630
469 # bug #27882 - zlib routines are only linked into the kernel 631 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 632 # if something compiled into the kernel calls them
530} 692}
531 693
532################################ 694################################
533# Default pkg_setup 695# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 696# Also used when inheriting linux-mod to force a get_version call
535 697# @FUNCTION: linux-info_pkg_setup
698# @DESCRIPTION:
699# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
700# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 701linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 702 get_version || die "Unable to calculate Linux Kernel version"
703
704 if kernel_is 2 4; then
705 if [ "$( gcc-major-version )" -eq "4" ] ; then
706 echo
707 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
708 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
709 echo
710 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
711 ewarn "newer kernel that supports gcc-4."
712 echo
713 ewarn "Also be aware that bugreports about gcc-4 not working"
714 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
715 echo
716 epause 10
717 fi
718 fi
719
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 720 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 721}

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