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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 1.40 2006/02/16 21:46:50 exg Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.87 2011/01/04 17:53:13 cardoe 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 source or binary 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.
20#
21# "kernel config" in this file means:
22# The .config of the currently installed sources is used as the first
23# preference, with a fall-back to bundled config (/proc/config.gz) if available.
15 24
16# A Couple of env vars are available to effect usage of this eclass 25# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 26# These are as follows:
18# 27
19# Env Var Option Description 28# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 29# @DESCRIPTION:
21# sources. 30# A string containing the directory of the target kernel sources. The default value is
31# "/usr/src/linux"
32
33# @ECLASS-VARIABLE: CONFIG_CHECK
34# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 35# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 36# proceeding with the install.
37#
38# e.g.: CONFIG_CHECK="MTRR"
39#
24# You can also check that an option doesn't exist by 40# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 41# prepending it with an exclamation mark (!).
42#
26# ie: CONFIG_CHECK="!MTRR" 43# e.g.: CONFIG_CHECK="!MTRR"
44#
27# To simply warn about a missing option, prepend a '~'. 45# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check 46# It may be combined with '!'.
47#
48# In general, most checks should be non-fatal. The only time fatal checks should
49# be used is for building kernel modules or cases that a compile will fail
50# without the option.
51#
52# This is to allow usage of binary kernels, and minimal systems without kernel
53# sources.
54
55# @ECLASS-VARIABLE: ERROR_<CFG>
56# @DESCRIPTION:
57# A string containing the error message to display when the check against CONFIG_CHECK
29# fails. <CFG> should reference the appropriate option 58# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
30# as above. ie: ERROR_MTRR="MTRR exists in the .config 59#
31# but shouldn't!!" 60# 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 61
33# the kernel makefile. This contains the directory 62# @ECLASS-VARIABLE: KBUILD_OUTPUT
63# @DESCRIPTION:
64# 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. 65# which is to be used as the kernel object directory.
35 66
36# There are also a couple of variables which are set by this, and shouldn't be 67# There are also a couple of variables which are set by this, and shouldn't be
37# set by hand. These are as follows: 68# set by hand. These are as follows:
38# 69
39# Env Var Option Description 70# @ECLASS-VARIABLE: KV_FULL
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 71# @DESCRIPTION:
41# KV_MAJOR <integer> The kernel major version. ie: 2 72# 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 73
43# KV_PATCH <integer> The kernel patch version. ie: 9 74# @ECLASS-VARIABLE: KV_MAJOR
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 75# @DESCRIPTION:
45# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 76# 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 77
78# @ECLASS-VARIABLE: KV_MINOR
79# @DESCRIPTION:
80# A read-only variable. It's an integer containing the kernel minor version. ie: 6
81
82# @ECLASS-VARIABLE: KV_PATCH
83# @DESCRIPTION:
84# A read-only variable. It's an integer containing the kernel patch version. ie: 9
85
86# @ECLASS-VARIABLE: KV_EXTRA
87# @DESCRIPTION:
88# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
89
90# @ECLASS-VARIABLE: KV_LOCAL
91# @DESCRIPTION:
92# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
93
94# @ECLASS-VARIABLE: KV_DIR
95# @DESCRIPTION:
96# A read-only variable. It's a string containing the kernel source directory, will be null if
47# KERNEL_DIR is invalid. 97# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 98
49# koutput is used. This should be used for referencing 99# @ECLASS-VARIABLE: KV_OUT_DIR
50# .config. 100# @DESCRIPTION:
101# 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.
51 103
52# And to ensure all the weirdness with crosscompile 104# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator 105inherit toolchain-funcs versionator
54 106
55EXPORT_FUNCTIONS pkg_setup 107EXPORT_FUNCTIONS pkg_setup
56 108
57DEPEND="kernel_linux? ( virtual/linux-sources )" 109DEPEND=""
58RDEPEND="" 110RDEPEND=""
59 111
60# Overwritable environment Var's 112# Overwritable environment Var's
61# --------------------------------------- 113# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 114KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
67case ${ARCH} in 119case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 120 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 121 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac 122esac
71 123
72# These are legacy wrappers for toolchain-funcs. 124# @FUNCTION: set_arch_to_kernel
73# I dont like them here, but oh well. 125# @DESCRIPTION:
126# Set the env ARCH to match what the kernel expects.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 127set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
128# @FUNCTION: set_arch_to_portage
129# @DESCRIPTION:
130# Set the env ARCH to match what portage expects.
75set_arch_to_portage() { export ARCH="$(tc-arch)"; } 131set_arch_to_portage() { export ARCH=$(tc-arch); }
76 132
77# qeinfo "Message" 133# qeinfo "Message"
78# ------------------- 134# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE 135# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output. 136# should not have visible output.
90 esac 146 esac
91 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 147 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
92} 148}
93 149
94qeinfo() { qout einfo "${@}" ; } 150qeinfo() { qout einfo "${@}" ; }
151qewarn() { qout ewarn "${@}" ; }
95qeerror() { qout eerror "${@}" ; } 152qeerror() { qout eerror "${@}" ; }
96 153
97# File Functions 154# File Functions
98# --------------------------------------- 155# ---------------------------------------
99 156
100# getfilevar accepts 2 vars as follows: 157# @FUNCTION: getfilevar
101# getfilevar <VARIABLE> <CONFIGFILE> 158# @USAGE: variable configfile
102 159# @RETURN: the value of the variable
160# @DESCRIPTION:
161# It detects the value of the variable defined in the file configfile. This is
162# done by including the configfile, and printing the variable with Make.
163# It WILL break if your makefile has missing dependencies!
103getfilevar() { 164getfilevar() {
104local ERROR workingdir basefname basedname myARCH="${ARCH}" 165local ERROR basefname basedname myARCH="${ARCH}"
105 ERROR=0 166 ERROR=0
106 167
107 [ -z "${1}" ] && ERROR=1 168 [ -z "${1}" ] && ERROR=1
108 [ ! -f "${2}" ] && ERROR=1 169 [ ! -f "${2}" ] && ERROR=1
109 170
111 then 172 then
112 echo -e "\n" 173 echo -e "\n"
113 eerror "getfilevar requires 2 variables, with the second a valid file." 174 eerror "getfilevar requires 2 variables, with the second a valid file."
114 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 175 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
115 else 176 else
116 workingdir="${PWD}"
117 basefname="$(basename ${2})" 177 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 178 basedname="$(dirname ${2})"
119 unset ARCH 179 unset ARCH
120 180
121 cd "${basedname}" 181 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 182 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}"
125 183
126 ARCH=${myARCH} 184 ARCH=${myARCH}
127 fi 185 fi
128} 186}
129 187
188# @FUNCTION: getfilevar_noexec
189# @USAGE: variable configfile
190# @RETURN: the value of the variable
191# @DESCRIPTION:
192# It detects the value of the variable defined in the file configfile.
193# This is done with sed matching an expression only. If the variable is defined,
194# you will run into problems. See getfilevar for those cases.
195getfilevar_noexec() {
196 local ERROR basefname basedname mycat myARCH="${ARCH}"
197 ERROR=0
198 mycat='cat'
199
200 [ -z "${1}" ] && ERROR=1
201 [ ! -f "${2}" ] && ERROR=1
202 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
203
204 if [ "${ERROR}" = 1 ]
205 then
206 echo -e "\n"
207 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
208 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
209 else
210 ${mycat} "${2}" | \
211 sed -n \
212 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
213 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
214 s,[[:space:]]*\$,,g ;
215 p
216 }"
217 fi
218}
219
220# @PRIVATE-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
221# @DESCRIPTION:
222# This is only set if one of the linux_config_*exists functions has been called.
223# We use it for a QA warning that the check for a config has not been performed,
224# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
225# config is available at all.
226_LINUX_CONFIG_EXISTS_DONE=
227
228linux_config_qa_check() {
229 local f="$1"
230 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
231 ewarn "QA: You called $f before any linux_config_exists!"
232 ewarn "QA: The return value of $f will NOT guaranteed later!"
233 fi
234}
235
236# @FUNCTION: linux_config_src_exists
237# @RETURN: true or false
238# @DESCRIPTION:
239# It returns true if .config exists in a build directory otherwise false
240linux_config_src_exists() {
241 export _LINUX_CONFIG_EXISTS_DONE=1
242 [ -s "${KV_OUT_DIR}/.config" ]
243}
244
245# @FUNCTION: linux_config_bin_exists
246# @RETURN: true or false
247# @DESCRIPTION:
248# It returns true if .config exists in /proc, otherwise false
249linux_config_bin_exists() {
250 export _LINUX_CONFIG_EXISTS_DONE=1
251 [ -s "/proc/config.gz" ]
252}
253
254# @FUNCTION: linux_config_exists
255# @RETURN: true or false
256# @DESCRIPTION:
257# It returns true if .config exists otherwise false
258#
259# This function MUST be checked before using any of the linux_chkconfig_*
260# functions.
261linux_config_exists() {
262 linux_config_src_exists || linux_config_bin_exists
263}
264
265# @FUNCTION: require_configured_kernel
266# @DESCRIPTION:
267# This function verifies that the current kernel is configured (it checks against the existence of .config)
268# otherwise it dies.
269require_configured_kernel() {
270 if ! linux_config_src_exists; then
271 qeerror "Could not find a usable .config in the kernel source directory."
272 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
273 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
274 qeerror "it points to the necessary object directory so that it might find .config."
275 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
276 fi
277}
278
279# @FUNCTION: linux_chkconfig_present
280# @USAGE: option
281# @RETURN: true or false
282# @DESCRIPTION:
283# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
284# If linux_config_exists returns false, the results of this are UNDEFINED. You
285# MUST call linux_config_exists first.
130linux_chkconfig_present() { 286linux_chkconfig_present() {
287 linux_config_qa_check linux_chkconfig_present
131local RESULT 288 local RESULT
289 local config
290 config="${KV_OUT_DIR}/.config"
291 [ ! -f "${config}" ] && config="/proc/config.gz"
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 292 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 293 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 294}
135 295
296# @FUNCTION: linux_chkconfig_module
297# @USAGE: option
298# @RETURN: true or false
299# @DESCRIPTION:
300# It checks that CONFIG_<option>=m is present in the current kernel .config
301# If linux_config_exists returns false, the results of this are UNDEFINED. You
302# MUST call linux_config_exists first.
136linux_chkconfig_module() { 303linux_chkconfig_module() {
304 linux_config_qa_check linux_chkconfig_module
137local RESULT 305 local RESULT
306 local config
307 config="${KV_OUT_DIR}/.config"
308 [ ! -f "${config}" ] && config="/proc/config.gz"
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 309 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
139 [ "${RESULT}" = "m" ] && return 0 || return 1 310 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 311}
141 312
313# @FUNCTION: linux_chkconfig_builtin
314# @USAGE: option
315# @RETURN: true or false
316# @DESCRIPTION:
317# It checks that CONFIG_<option>=y is present in the current kernel .config
318# If linux_config_exists returns false, the results of this are UNDEFINED. You
319# MUST call linux_config_exists first.
142linux_chkconfig_builtin() { 320linux_chkconfig_builtin() {
321 linux_config_qa_check linux_chkconfig_builtin
143local RESULT 322 local RESULT
323 local config
324 config="${KV_OUT_DIR}/.config"
325 [ ! -f "${config}" ] && config="/proc/config.gz"
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 326 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
145 [ "${RESULT}" = "y" ] && return 0 || return 1 327 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 328}
147 329
330# @FUNCTION: linux_chkconfig_string
331# @USAGE: option
332# @RETURN: CONFIG_<option>
333# @DESCRIPTION:
334# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
335# If linux_config_exists returns false, the results of this are UNDEFINED. You
336# MUST call linux_config_exists first.
148linux_chkconfig_string() { 337linux_chkconfig_string() {
338 linux_config_qa_check linux_chkconfig_string
339 local config
340 config="${KV_OUT_DIR}/.config"
341 [ ! -f "${config}" ] && config="/proc/config.gz"
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 getfilevar_noexec "CONFIG_${1}" "${config}"
150} 343}
151 344
152# Versioning Functions 345# Versioning Functions
153# --------------------------------------- 346# ---------------------------------------
154 347
155# kernel_is returns true when the version is the same as the passed version 348# @FUNCTION: kernel_is
349# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
350# @RETURN: true or false
351# @DESCRIPTION:
352# It returns true when the current kernel version satisfies the comparison against the passed version.
353# -eq is the default comparison.
156# 354#
355# @CODE
157# For Example where KV = 2.6.9 356# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 357# kernel_is 2 4 returns false
159# kernel_is 2 returns true 358# kernel_is 2 returns true
160# kernel_is 2 6 returns true 359# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 360# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 361# kernel_is 2 6 9 returns true
163# 362# @CODE
363
164# got the jist yet? 364# got the jist yet?
165 365
166kernel_is() { 366kernel_is() {
167 # if we haven't determined the version yet, we need too. 367 # if we haven't determined the version yet, we need to.
168 get_version; 368 linux-info_get_any_version
369
169 local operator test value x=0 y=0 z=0 370 local operator testagainst value x=0 y=0 z=0
170 371
171 case ${1} in 372 case ${1} in
172 lt) operator="-lt"; shift;; 373 -lt|lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 374 -gt|gt) operator="-gt"; shift;;
174 le) operator="-le"; shift;; 375 -le|le) operator="-le"; shift;;
175 ge) operator="-ge"; shift;; 376 -ge|ge) operator="-ge"; shift;;
176 eq) operator="-eq"; shift;; 377 -eq|eq) operator="-eq"; shift;;
177 *) operator="-eq";; 378 *) operator="-eq";;
178 esac 379 esac
179 380
180 for x in ${@}; do 381 for x in ${@}; do
181 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 382 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
182 value="${value}${x}" 383 value="${value}${x}"
183 z=$((${z} + 1)) 384 z=$((${z} + 1))
184 385
185 case ${z} in 386 case ${z} in
186 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 387 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
187 test="${test}${KV_MAJOR}";; 388 testagainst="${testagainst}${KV_MAJOR}";;
188 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done; 389 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do testagainst="${testagainst}0"; done;
189 test="${test}${KV_MINOR}";; 390 testagainst="${testagainst}${KV_MINOR}";;
190 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 391 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do testagainst="${testagainst}0"; done;
191 test="${test}${KV_PATCH}";; 392 testagainst="${testagainst}${KV_PATCH}";;
192 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 393 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
193 esac 394 esac
194 done 395 done
195 396
196 [ ${test} ${operator} ${value} ] && return 0 || return 1 397 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
197} 398}
198 399
199get_localversion() { 400get_localversion() {
200 local lv_list i x 401 local lv_list i x
201 402
209 done 410 done
210 x=${x/ /} 411 x=${x/ /}
211 echo ${x} 412 echo ${x}
212} 413}
213 414
415# Check if the Makefile is valid for direct parsing.
416# Check status results:
417# - PASS, use 'getfilevar' to extract values
418# - FAIL, use 'getfilevar_noexec' to extract values
419# The check may fail if:
420# - make is not present
421# - corruption exists in the kernel makefile
422get_makefile_extract_function() {
423 local a='' b='' mkfunc='getfilevar'
424 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
425 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
426 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
427 echo "${mkfunc}"
428}
429
430# internal variable, so we know to only print the warning once
431get_version_warning_done=
432
433# @FUNCTION: get_version
434# @DESCRIPTION:
435# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
436# (if KV_FULL is already set it does nothing).
437#
438# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
439#
440# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
441# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
442# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 443get_version() {
215 local kbuild_output 444 local kbuild_output mkfunc tmplocal
216 445
217 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
219 [ -n "${KV_FULL}" ] && return 0 448 [ -n "${KV_FULL}" ] && return 0
220 449
221 # if we dont know KV_FULL, then we need too. 450 # if we dont know KV_FULL, then we need too.
222 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 451 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
223 unset KV_DIR 452 unset KV_DIR
224 453
225 # KV_DIR will contain the full path to the sources directory we should use 454 # KV_DIR will contain the full path to the sources directory we should use
455 [ -z "${get_version_warning_done}" ] && \
226 qeinfo "Determining the location of the kernel source code" 456 qeinfo "Determining the location of the kernel source code"
227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 457 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 458 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
229 459
230 if [ -z "${KV_DIR}" ] 460 if [ -z "${KV_DIR}" ]
231 then 461 then
462 if [ -z "${get_version_warning_done}" ]; then
463 get_version_warning_done=1
232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 464 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
233 qeinfo "This package requires Linux sources." 465 #qeinfo "This package requires Linux sources."
234 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 466 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
235 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 467 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)." 468 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 469 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else 470 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 471 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
472 fi
240 fi 473 fi
241 return 1 474 return 1
242 fi 475 fi
243 476
477 if [ -z "${get_version_warning_done}" ]; then
244 qeinfo "Found kernel source directory:" 478 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}" 479 qeinfo " ${KV_DIR}"
480 fi
246 481
247 if [ ! -s "${KV_DIR}/Makefile" ] 482 if [ ! -s "${KV_DIR}/Makefile" ]
248 then 483 then
484 if [ -z "${get_version_warning_done}" ]; then
485 get_version_warning_done=1
249 qeerror "Could not find a Makefile in the kernel source directory." 486 qeerror "Could not find a Makefile in the kernel source directory."
250 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 487 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
488 fi
251 return 1 489 return 1
252 fi 490 fi
253 491
254 # OK so now we know our sources directory, but they might be using 492 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-* 493 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh? 494 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI? 495 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
259 497
498 # keep track of it
499 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
500
501 # Decide the function used to extract makefile variables.
502 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
503
260 # And if we didn't pass it, we can take a nosey in the Makefile 504 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 505 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 506 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263 507
264 # And contrary to existing functions I feel we shouldn't trust the 508 # And contrary to existing functions I feel we shouldn't trust the
265 # directory name to find version information as this seems insane. 509 # directory name to find version information as this seems insane.
266 # so we parse ${KV_DIR}/Makefile 510 # so we parse ${KERNEL_MAKEFILE}
267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 511 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 512 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 513 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 514 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
271 515
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 516 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then 517 then
518 if [ -z "${get_version_warning_done}" ]; then
519 get_version_warning_done=1
274 qeerror "Could not detect kernel version." 520 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 521 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
522 fi
276 return 1 523 return 1
277 fi 524 fi
278 525
279 # and in newer versions we can also pull LOCALVERSION if it is set. 526 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 527 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 528 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 529 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 530 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 531
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
289 then 535 then
290 qeinfo "Found kernel object directory:" 536 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 537 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 538 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 539 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 540 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 541
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 542 # Grab the kernel release from the output directory.
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 543 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
300 KV_LOCAL="${KV_LOCAL//\"/}" 544 # this function.
545 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
546 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
547 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
548 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
549 else
550 KV_LOCAL=
551 fi
552
553 # KV_LOCAL currently contains the full release; discard the first bits.
554 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
555
556 # If the updated local version was not changed, the tree is not prepared.
557 # Clear out KV_LOCAL in that case.
558 # TODO: this does not detect a change in the localversion part between
559 # kernel.release and the value that would be generated.
560 if [ "$KV_LOCAL" = "$tmplocal" ]; then
561 KV_LOCAL=
562 else
563 KV_LOCAL=$tmplocal
564 fi
301 565
302 # And we should set KV_FULL to the full expanded version 566 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 567 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 568
305 qeinfo "Found sources for kernel version:" 569 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 570 qeinfo " ${KV_FULL}"
307 571
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 572 return 0
318} 573}
319 574
575# @FUNCTION: get_running_version
576# @DESCRIPTION:
577# It gets the version of the current running kernel and the result is the same as get_version() if the
578# function can find the sources.
320get_running_version() { 579get_running_version() {
321 KV_FULL=$(uname -r) 580 KV_FULL=$(uname -r)
322 581
582 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
583 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
584 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
585 unset KV_FULL
586 get_version
587 return $?
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 588 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 589 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL 590 unset KV_FULL
326 get_version 591 get_version
327 return $? 592 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 593 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
339 && KV_EXTRA="-${KV_FULL#*-}" 604 && KV_EXTRA="-${KV_FULL#*-}"
340 fi 605 fi
341 return 0 606 return 0
342} 607}
343 608
609# This next function is named with the eclass prefix to avoid conflicts with
610# some old versionator-like eclass functions.
611
612# @FUNCTION: linux-info_get_any_version
613# @DESCRIPTION:
614# This attempts to find the version of the sources, and otherwise falls back to
615# the version of the running kernel.
616linux-info_get_any_version() {
617 get_version
618 if [[ $? -ne 0 ]]; then
619 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
620 get_running_version
621 fi
622}
623
344 624
345# ebuild check functions 625# ebuild check functions
346# --------------------------------------- 626# ---------------------------------------
347 627
628# @FUNCTION: check_kernel_built
629# @DESCRIPTION:
630# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 631check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 632 # if we haven't determined the version yet, we need to
633 require_configured_kernel
350 get_version; 634 get_version
351 635
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 636 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
353 then 637 then
354 eerror "These sources have not yet been prepared." 638 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 639 eerror "We cannot build against an unprepared tree."
362 eerror "Then please try merging this module again." 646 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 647 die "Kernel sources need compiling first"
364 fi 648 fi
365} 649}
366 650
651# @FUNCTION: check_modules_supported
652# @DESCRIPTION:
653# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 654check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 655 # if we haven't determined the version yet, we need too.
656 require_configured_kernel
369 get_version; 657 get_version
370 658
371 if ! linux_chkconfig_builtin "MODULES" 659 if ! linux_chkconfig_builtin "MODULES"
372 then 660 then
373 eerror "These sources do not support loading external modules." 661 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 662 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." 663 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 664 die "No support for external modules in ${KV_FULL} config"
377 fi 665 fi
378} 666}
379 667
668# @FUNCTION: check_extra_config
669# @DESCRIPTION:
670# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
671# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 672check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 673 local config negate die error reworkmodulenames
674 local soft_errors_count=0 hard_errors_count=0 config_required=0
675 # store the value of the QA check, because otherwise we won't catch usages
676 # after if check_extra_config is called AND other direct calls are done
677 # later.
678 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
383 679
384 # if we haven't determined the version yet, we need too. 680 # if we haven't determined the version yet, we need to
385 get_version; 681 linux-info_get_any_version
386 682
683 # Determine if we really need a .config. The only time when we don't need
684 # one is when all of the CONFIG_CHECK options are prefixed with "~".
685 for config in ${CONFIG_CHECK}
686 do
687 if [[ "${config:0:1}" != "~" ]]; then
688 config_required=1
689 break
690 fi
691 done
692
693 if [[ ${config_required} == 0 ]]; then
694 # In the case where we don't require a .config, we can now bail out
695 # if the user has no .config as there is nothing to do. Otherwise
696 # code later will cause a failure due to missing .config.
697 if ! linux_config_exists; then
698 ewarn "Unable to check for the following kernel config options due"
699 ewarn "to absence of any configured kernel sources or compiled"
700 ewarn "config:"
701 for config in ${CONFIG_CHECK}; do
702 local_error="ERROR_${config#\~}"
703 msg="${!local_error}"
704 if [[ "x${msg}" == "x" ]]; then
705 local_error="WARNING_${config#\~}"
706 msg="${!local_error}"
707 fi
708 ewarn " - ${config#\~}${msg:+ - }${msg}"
709 done
710 ewarn "You're on your own to make sure they are set if needed."
711 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
712 return 0
713 fi
714 else
715 require_configured_kernel
716 fi
717
387 einfo "Checking for suitable kernel configuration options:" 718 einfo "Checking for suitable kernel configuration options..."
719
388 for config in ${CONFIG_CHECK} 720 for config in ${CONFIG_CHECK}
389 do 721 do
390 # if we specify any fatal, ensure we honor them 722 # if we specify any fatal, ensure we honor them
391 die=1 723 die=1
392 error=0 724 error=0
393 negate=0 725 negate=0
394 reworkmodulenames=0 726 reworkmodulenames=0
395 727
396 if [[ -z ${config//\!*} ]]; then 728 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 729 die=0
398 config=${config:1} 730 config=${config:1}
399 fi 731 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 732 die=0
402 reworkmodulenames=1 733 reworkmodulenames=1
403 config=${config:1} 734 config=${config:1}
404 fi 735 fi
405 if [[ -z ${config/\~*} ]]; then 736 if [[ ${config:0:1} == "!" ]]; then
406 die=0 737 negate=1
407 config=${config:1} 738 config=${config:1}
408 fi 739 fi
409 740
410 if [[ ${negate} == 1 ]]; then 741 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 742 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 743 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 744 local temp_config="${config//*:}" i n
414 config="${config//:*}" 745 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 746 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 747 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 748 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 749 [[ -z ${n//\(*} ]] && \
422 fi 753 fi
423 else 754 else
424 linux_chkconfig_present ${config} || error=1 755 linux_chkconfig_present ${config} || error=1
425 fi 756 fi
426 757
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 758 if [[ ${error} > 0 ]]; then
759 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 760 local_error="ERROR_${config}"
761 local_error="${!local_error}"
762
763 if [[ -z "${local_error}" ]]; then
764 # using old, deprecated format.
765 local_error="${config}_ERROR"
433 local_error="${!local_error}" 766 local_error="${!local_error}"
434 767 fi
435 if [[ -z "${local_error}" ]]; then 768 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 769 #soft errors can be warnings
437 local_error="${config}_ERROR" 770 local_error="WARNING_${config}"
438 local_error="${!local_error}" 771 local_error="${!local_error}"
772 if [[ -n "${local_error}" ]] ; then
773 report_func="ewarn"
439 fi 774 fi
440
441 if [[ -z "${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 " ${local_error}"
448 fi 775 fi
776
777 if [[ -z "${local_error}" ]]; then
778 [[ ${error} == 1 ]] \
779 && local_error="is not set when it should be." \
780 || local_error="should not be set. But it is."
781 local_error="CONFIG_${config}:\t ${local_error}"
782 fi
783 if [[ ${die} == 0 ]]; then
784 ${report_func} " ${local_error}"
785 soft_errors_count=$[soft_errors_count + 1]
786 else
787 ${report_func} " ${local_error}"
788 hard_errors_count=$[hard_errors_count + 1]
789 fi
449 fi 790 fi
450 done 791 done
451 792
452 if [[ ${error} > 0 ]]; then 793 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 794 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 795 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 796 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 797 eerror "this package again."
798 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
458 die "Incorrect kernel configuration options" 799 die "Incorrect kernel configuration options"
800 elif [[ ${soft_errors_count} > 0 ]]; then
801 ewarn "Please check to make sure these options are set correctly."
802 ewarn "Failure to do so may cause unexpected problems."
803 else
804 eend 0
459 fi 805 fi
460 fi 806 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
461} 807}
462 808
463check_zlibinflate() { 809check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 810 # if we haven't determined the version yet, we need to
811 require_configured_kernel
465 get_version; 812 get_version
466 813
467 # although I restructured this code - I really really really dont support it! 814 # although I restructured this code - I really really really dont support it!
468 815
469 # bug #27882 - zlib routines are only linked into the kernel 816 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 817 # if something compiled into the kernel calls them
477 local DEFLATE 824 local DEFLATE
478 825
479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 826 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
480 827
481 ebegin "checking ZLIB_INFLATE" 828 ebegin "checking ZLIB_INFLATE"
482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 829 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
483 eend $? 830 eend $?
484 [ "$?" != 0 ] && die 831 [ "$?" != 0 ] && die
485 832
486 ebegin "checking ZLIB_DEFLATE" 833 ebegin "checking ZLIB_DEFLATE"
487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 834 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
488 eend $? 835 eend $?
489 [ "$?" != 0 ] && die 836 [ "$?" != 0 ] && die
490 837
491 local LINENO_START 838 local LINENO_START
492 local LINENO_END 839 local LINENO_END
530} 877}
531 878
532################################ 879################################
533# Default pkg_setup 880# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 881# Also used when inheriting linux-mod to force a get_version call
535 882# @FUNCTION: linux-info_pkg_setup
883# @DESCRIPTION:
884# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
885# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 886linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 887 linux-info_get_any_version
888
889 if kernel_is 2 4; then
890 if [ "$( gcc-major-version )" -eq "4" ] ; then
891 echo
892 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
893 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
894 echo
895 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
896 ewarn "newer kernel that supports gcc-4."
897 echo
898 ewarn "Also be aware that bugreports about gcc-4 not working"
899 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
900 echo
901 epause 10
902 fi
903 fi
904
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 905 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 906}

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