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1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2012 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 1.92 2012/06/26 00:06:14 robbat2 Exp $
4# 4
5# @ECLASS: linux-info.eclass
6# @MAINTAINER:
7# kernel-misc@gentoo.org
8# @AUTHOR:
9# Original author: John Mylchreest <johnm@gentoo.org>
10# @BLURB: eclass used for accessing kernel related information
11# @DESCRIPTION:
5# Description: This eclass is used as a central eclass for accessing kernel 12# This eclass is used as a central eclass for accessing kernel
6# related information for sources already installed. 13# related information for source or binary already installed.
7# It is vital for linux-mod to function correctly, and is split 14# It is vital for linux-mod.eclass to function correctly, and is split
8# out so that any ebuild behaviour "templates" are abstracted out 15# out so that any ebuild behaviour "templates" are abstracted out
9# using additional eclasses. 16# using additional eclasses.
10# 17#
11# Maintainer: John Mylchreest <johnm@gentoo.org> 18# "kernel config" in this file means:
12# Copyright 2004 Gentoo Linux 19# The .config of the currently installed sources is used as the first
20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
13# 21#
14# Please direct your bugs to the current eclass maintainer :) 22# Before using any of the config-handling functions in this eclass, you must
23# ensure that one of the following functions has been called (in order of
24# preference), otherwise you will get bugs like #364041):
25# linux-info_pkg_setup
26# linux-info_get_any_version
27# get_version
28# get_running_version
15 29
16# A Couple of env vars are available to effect usage of this eclass 30# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 31# These are as follows:
18# 32
19# Env Var Option Description 33# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 34# @DESCRIPTION:
21# sources. 35# A string containing the directory of the target kernel sources. The default value is
36# "/usr/src/linux"
37
38# @ECLASS-VARIABLE: CONFIG_CHECK
39# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 40# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 41# proceeding with the install.
42#
43# e.g.: CONFIG_CHECK="MTRR"
44#
24# You can also check that an option doesn't exist by 45# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 46# prepending it with an exclamation mark (!).
47#
26# ie: CONFIG_CHECK="!MTRR" 48# e.g.: CONFIG_CHECK="!MTRR"
49#
27# To simply warn about a missing option, prepend a '~'. 50# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check 51# It may be combined with '!'.
52#
53# In general, most checks should be non-fatal. The only time fatal checks should
54# be used is for building kernel modules or cases that a compile will fail
55# without the option.
56#
57# This is to allow usage of binary kernels, and minimal systems without kernel
58# sources.
59
60# @ECLASS-VARIABLE: ERROR_<CFG>
61# @DESCRIPTION:
62# A string containing the error message to display when the check against CONFIG_CHECK
29# fails. <CFG> should reference the appropriate option 63# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
30# as above. ie: ERROR_MTRR="MTRR exists in the .config 64#
31# but shouldn't!!" 65# 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 66
33# the kernel makefile. This contains the directory 67# @ECLASS-VARIABLE: KBUILD_OUTPUT
68# @DESCRIPTION:
69# 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. 70# which is to be used as the kernel object directory.
35 71
36# There are also a couple of variables which are set by this, and shouldn't be 72# There are also a couple of variables which are set by this, and shouldn't be
37# set by hand. These are as follows: 73# set by hand. These are as follows:
38# 74
39# Env Var Option Description 75# @ECLASS-VARIABLE: KV_FULL
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 76# @DESCRIPTION:
41# KV_MAJOR <integer> The kernel major version. ie: 2 77# 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 78
43# KV_PATCH <integer> The kernel patch version. ie: 9 79# @ECLASS-VARIABLE: KV_MAJOR
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 80# @DESCRIPTION:
45# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 81# 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 82
83# @ECLASS-VARIABLE: KV_MINOR
84# @DESCRIPTION:
85# A read-only variable. It's an integer containing the kernel minor version. ie: 6
86
87# @ECLASS-VARIABLE: KV_PATCH
88# @DESCRIPTION:
89# A read-only variable. It's an integer containing the kernel patch version. ie: 9
90
91# @ECLASS-VARIABLE: KV_EXTRA
92# @DESCRIPTION:
93# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
94
95# @ECLASS-VARIABLE: KV_LOCAL
96# @DESCRIPTION:
97# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
98
99# @ECLASS-VARIABLE: KV_DIR
100# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel source directory, will be null if
47# KERNEL_DIR is invalid. 102# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 103
49# koutput is used. This should be used for referencing 104# @ECLASS-VARIABLE: KV_OUT_DIR
50# .config. 105# @DESCRIPTION:
106# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
107# KBUILD_OUTPUT is used. This should be used for referencing .config.
51 108
52# And to ensure all the weirdness with crosscompile 109# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator 110inherit toolchain-funcs versionator
54 111
55EXPORT_FUNCTIONS pkg_setup 112EXPORT_FUNCTIONS pkg_setup
56 113
57DEPEND="virtual/linux-sources" 114DEPEND=""
58RDEPEND="" 115RDEPEND=""
59 116
60# Overwritable environment Var's 117# Overwritable environment Var's
61# --------------------------------------- 118# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
67case ${ARCH} in 124case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 125 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 126 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac 127esac
71 128
72# These are legacy wrappers for toolchain-funcs. 129# @FUNCTION: set_arch_to_kernel
73# I dont like them here, but oh well. 130# @DESCRIPTION:
131# Set the env ARCH to match what the kernel expects.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 132set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
133# @FUNCTION: set_arch_to_portage
134# @DESCRIPTION:
135# Set the env ARCH to match what portage expects.
75set_arch_to_portage() { export ARCH="$(tc-arch)"; } 136set_arch_to_portage() { export ARCH=$(tc-arch); }
76 137
77# qeinfo "Message" 138# qeinfo "Message"
78# ------------------- 139# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE 140# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output. 141# should not have visible output.
90 esac 151 esac
91 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
92} 153}
93 154
94qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
95qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
96 158
97# File Functions 159# File Functions
98# --------------------------------------- 160# ---------------------------------------
99 161
100# getfilevar accepts 2 vars as follows: 162# @FUNCTION: getfilevar
101# getfilevar <VARIABLE> <CONFIGFILE> 163# @USAGE: variable configfile
102 164# @RETURN: the value of the variable
165# @DESCRIPTION:
166# It detects the value of the variable defined in the file configfile. This is
167# done by including the configfile, and printing the variable with Make.
168# It WILL break if your makefile has missing dependencies!
103getfilevar() { 169getfilevar() {
104local ERROR workingdir basefname basedname myARCH="${ARCH}" 170local ERROR basefname basedname myARCH="${ARCH}"
105 ERROR=0 171 ERROR=0
106 172
107 [ -z "${1}" ] && ERROR=1 173 [ -z "${1}" ] && ERROR=1
108 [ ! -f "${2}" ] && ERROR=1 174 [ ! -f "${2}" ] && ERROR=1
109 175
111 then 177 then
112 echo -e "\n" 178 echo -e "\n"
113 eerror "getfilevar requires 2 variables, with the second a valid file." 179 eerror "getfilevar requires 2 variables, with the second a valid file."
114 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 180 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
115 else 181 else
116 workingdir="${PWD}"
117 basefname="$(basename ${2})" 182 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 183 basedname="$(dirname ${2})"
119 unset ARCH 184 unset ARCH
120 185
121 cd "${basedname}" 186 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 187 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}"
125 188
126 ARCH=${myARCH} 189 ARCH=${myARCH}
127 fi 190 fi
128} 191}
129 192
193# @FUNCTION: getfilevar_noexec
194# @USAGE: variable configfile
195# @RETURN: the value of the variable
196# @DESCRIPTION:
197# It detects the value of the variable defined in the file configfile.
198# This is done with sed matching an expression only. If the variable is defined,
199# you will run into problems. See getfilevar for those cases.
200getfilevar_noexec() {
201 local ERROR basefname basedname mycat myARCH="${ARCH}"
202 ERROR=0
203 mycat='cat'
204
205 [ -z "${1}" ] && ERROR=1
206 [ ! -f "${2}" ] && ERROR=1
207 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
208
209 if [ "${ERROR}" = 1 ]
210 then
211 echo -e "\n"
212 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
213 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
214 else
215 ${mycat} "${2}" | \
216 sed -n \
217 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
218 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
219 s,[[:space:]]*\$,,g ;
220 p
221 }"
222 fi
223}
224
225# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
226# @INTERNAL
227# @DESCRIPTION:
228# This is only set if one of the linux_config_*exists functions has been called.
229# We use it for a QA warning that the check for a config has not been performed,
230# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
231# config is available at all.
232_LINUX_CONFIG_EXISTS_DONE=
233
234linux_config_qa_check() {
235 local f="$1"
236 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
237 ewarn "QA: You called $f before any linux_config_exists!"
238 ewarn "QA: The return value of $f will NOT guaranteed later!"
239 fi
240}
241
242# @FUNCTION: linux_config_src_exists
243# @RETURN: true or false
244# @DESCRIPTION:
245# It returns true if .config exists in a build directory otherwise false
246linux_config_src_exists() {
247 export _LINUX_CONFIG_EXISTS_DONE=1
248 [ -s "${KV_OUT_DIR}/.config" ]
249}
250
251# @FUNCTION: linux_config_bin_exists
252# @RETURN: true or false
253# @DESCRIPTION:
254# It returns true if .config exists in /proc, otherwise false
255linux_config_bin_exists() {
256 export _LINUX_CONFIG_EXISTS_DONE=1
257 [ -s "/proc/config.gz" ]
258}
259
260# @FUNCTION: linux_config_exists
261# @RETURN: true or false
262# @DESCRIPTION:
263# It returns true if .config exists otherwise false
264#
265# This function MUST be checked before using any of the linux_chkconfig_*
266# functions.
267linux_config_exists() {
268 linux_config_src_exists || linux_config_bin_exists
269}
270
271# @FUNCTION: require_configured_kernel
272# @DESCRIPTION:
273# This function verifies that the current kernel is configured (it checks against the existence of .config)
274# otherwise it dies.
275require_configured_kernel() {
276 if ! linux_config_src_exists; then
277 qeerror "Could not find a usable .config in the kernel source directory."
278 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
279 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
280 qeerror "it points to the necessary object directory so that it might find .config."
281 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
282 fi
283}
284
285# @FUNCTION: linux_chkconfig_present
286# @USAGE: option
287# @RETURN: true or false
288# @DESCRIPTION:
289# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
290# If linux_config_exists returns false, the results of this are UNDEFINED. You
291# MUST call linux_config_exists first.
130linux_chkconfig_present() { 292linux_chkconfig_present() {
293 linux_config_qa_check linux_chkconfig_present
131local RESULT 294 local RESULT
295 local config
296 config="${KV_OUT_DIR}/.config"
297 [ ! -f "${config}" ] && config="/proc/config.gz"
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 299 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 300}
135 301
302# @FUNCTION: linux_chkconfig_module
303# @USAGE: option
304# @RETURN: true or false
305# @DESCRIPTION:
306# It checks that CONFIG_<option>=m is present in the current kernel .config
307# If linux_config_exists returns false, the results of this are UNDEFINED. You
308# MUST call linux_config_exists first.
136linux_chkconfig_module() { 309linux_chkconfig_module() {
310 linux_config_qa_check linux_chkconfig_module
137local RESULT 311 local RESULT
312 local config
313 config="${KV_OUT_DIR}/.config"
314 [ ! -f "${config}" ] && config="/proc/config.gz"
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
139 [ "${RESULT}" = "m" ] && return 0 || return 1 316 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 317}
141 318
319# @FUNCTION: linux_chkconfig_builtin
320# @USAGE: option
321# @RETURN: true or false
322# @DESCRIPTION:
323# It checks that CONFIG_<option>=y is present in the current kernel .config
324# If linux_config_exists returns false, the results of this are UNDEFINED. You
325# MUST call linux_config_exists first.
142linux_chkconfig_builtin() { 326linux_chkconfig_builtin() {
327 linux_config_qa_check linux_chkconfig_builtin
143local RESULT 328 local RESULT
329 local config
330 config="${KV_OUT_DIR}/.config"
331 [ ! -f "${config}" ] && config="/proc/config.gz"
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 332 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
145 [ "${RESULT}" = "y" ] && return 0 || return 1 333 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 334}
147 335
336# @FUNCTION: linux_chkconfig_string
337# @USAGE: option
338# @RETURN: CONFIG_<option>
339# @DESCRIPTION:
340# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
341# If linux_config_exists returns false, the results of this are UNDEFINED. You
342# MUST call linux_config_exists first.
148linux_chkconfig_string() { 343linux_chkconfig_string() {
344 linux_config_qa_check linux_chkconfig_string
345 local config
346 config="${KV_OUT_DIR}/.config"
347 [ ! -f "${config}" ] && config="/proc/config.gz"
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 348 getfilevar_noexec "CONFIG_${1}" "${config}"
150} 349}
151 350
152# Versioning Functions 351# Versioning Functions
153# --------------------------------------- 352# ---------------------------------------
154 353
155# kernel_is returns true when the version is the same as the passed version 354# @FUNCTION: kernel_is
355# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
356# @RETURN: true or false
357# @DESCRIPTION:
358# It returns true when the current kernel version satisfies the comparison against the passed version.
359# -eq is the default comparison.
156# 360#
361# @CODE
157# For Example where KV = 2.6.9 362# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 363# kernel_is 2 4 returns false
159# kernel_is 2 returns true 364# kernel_is 2 returns true
160# kernel_is 2 6 returns true 365# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 366# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 367# kernel_is 2 6 9 returns true
163# 368# @CODE
164# got the jist yet?
165 369
370# Note: duplicated in kernel-2.eclass
166kernel_is() { 371kernel_is() {
167 # if we haven't determined the version yet, we need too. 372 # if we haven't determined the version yet, we need to.
168 get_version; 373 linux-info_get_any_version
374
375 # Now we can continue
169 local operator test value x=0 y=0 z=0 376 local operator test value
170 377
171 case ${1} in 378 case ${1#-} in
172 lt) operator="-lt"; shift;; 379 lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 380 gt) operator="-gt"; shift;;
174 le) operator="-le"; shift;; 381 le) operator="-le"; shift;;
175 ge) operator="-ge"; shift;; 382 ge) operator="-ge"; shift;;
176 eq) operator="-eq"; shift;; 383 eq) operator="-eq"; shift;;
177 *) operator="-eq";; 384 *) operator="-eq";;
178 esac 385 esac
179
180 for x in ${@}; do
181 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
182 value="${value}${x}"
183 z=$((${z} + 1))
184
185 case ${z} in
186 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
187 test="${test}${KV_MAJOR}";;
188 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
189 test="${test}${KV_MINOR}";;
190 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
191 test="${test}${KV_PATCH}";;
192 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 386 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
193 esac
194 done
195 387
196 [ ${test} ${operator} ${value} ] && return 0 || return 1 388 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
389 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
390 [ ${test} ${operator} ${value} ]
197} 391}
198 392
199get_localversion() { 393get_localversion() {
200 local lv_list i x 394 local lv_list i x
201 395
209 done 403 done
210 x=${x/ /} 404 x=${x/ /}
211 echo ${x} 405 echo ${x}
212} 406}
213 407
408# Check if the Makefile is valid for direct parsing.
409# Check status results:
410# - PASS, use 'getfilevar' to extract values
411# - FAIL, use 'getfilevar_noexec' to extract values
412# The check may fail if:
413# - make is not present
414# - corruption exists in the kernel makefile
415get_makefile_extract_function() {
416 local a='' b='' mkfunc='getfilevar'
417 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
418 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
419 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
420 echo "${mkfunc}"
421}
422
423# internal variable, so we know to only print the warning once
424get_version_warning_done=
425
426# @FUNCTION: get_version
427# @DESCRIPTION:
428# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
429# (if KV_FULL is already set it does nothing).
430#
431# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
432#
433# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
434# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
435# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 436get_version() {
215 local kbuild_output 437 local kbuild_output mkfunc tmplocal
216 438
217 # no need to execute this twice assuming KV_FULL is populated. 439 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 440 # we can force by unsetting KV_FULL
219 [ -n "${KV_FULL}" ] && return 0 441 [ -n "${KV_FULL}" ] && return 0
220 442
221 # if we dont know KV_FULL, then we need too. 443 # 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 444 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
223 unset KV_DIR 445 unset KV_DIR
224 446
225 # KV_DIR will contain the full path to the sources directory we should use 447 # KV_DIR will contain the full path to the sources directory we should use
448 [ -z "${get_version_warning_done}" ] && \
226 qeinfo "Determining the location of the kernel source code" 449 qeinfo "Determining the location of the kernel source code"
227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 450 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 451 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
229 452
230 if [ -z "${KV_DIR}" ] 453 if [ -z "${KV_DIR}" ]
231 then 454 then
455 if [ -z "${get_version_warning_done}" ]; then
456 get_version_warning_done=1
232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 457 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
233 qeinfo "This package requires Linux sources." 458 #qeinfo "This package requires Linux sources."
234 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 459 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
235 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 460 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)." 461 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 462 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else 463 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 464 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
465 fi
240 fi 466 fi
241 return 1 467 return 1
242 fi 468 fi
243 469
470 if [ -z "${get_version_warning_done}" ]; then
244 qeinfo "Found kernel source directory:" 471 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}" 472 qeinfo " ${KV_DIR}"
473 fi
246 474
247 if [ ! -s "${KV_DIR}/Makefile" ] 475 if [ ! -s "${KV_DIR}/Makefile" ]
248 then 476 then
477 if [ -z "${get_version_warning_done}" ]; then
478 get_version_warning_done=1
249 qeerror "Could not find a Makefile in the kernel source directory." 479 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" 480 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
481 fi
251 return 1 482 return 1
252 fi 483 fi
253 484
254 # OK so now we know our sources directory, but they might be using 485 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-* 486 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh? 487 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI? 488 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 489 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
259 490
491 # keep track of it
492 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
493
494 # Decide the function used to extract makefile variables.
495 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
496
260 # And if we didn't pass it, we can take a nosey in the Makefile 497 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 498 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 499 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263 500
264 # And contrary to existing functions I feel we shouldn't trust the 501 # And contrary to existing functions I feel we shouldn't trust the
265 # directory name to find version information as this seems insane. 502 # directory name to find version information as this seems insane.
266 # so we parse ${KV_DIR}/Makefile 503 # so we parse ${KERNEL_MAKEFILE}
267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 504 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 505 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 506 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 507 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
271 508
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 509 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then 510 then
511 if [ -z "${get_version_warning_done}" ]; then
512 get_version_warning_done=1
274 qeerror "Could not detect kernel version." 513 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 514 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
515 fi
276 return 1 516 return 1
277 fi 517 fi
278 518
279 # and in newer versions we can also pull LOCALVERSION if it is set. 519 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 520 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 521 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 522 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 523 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 524
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 525 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 526 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 527 if [ -n "${KV_OUT_DIR}" ];
289 then 528 then
290 qeinfo "Found kernel object directory:" 529 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 530 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 531 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 532 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 533 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 534
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 535 # Grab the kernel release from the output directory.
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 536 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
300 KV_LOCAL="${KV_LOCAL//\"/}" 537 # this function.
538 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
539 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
540 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
541 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
542 else
543 KV_LOCAL=
544 fi
545
546 # KV_LOCAL currently contains the full release; discard the first bits.
547 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
548
549 # If the updated local version was not changed, the tree is not prepared.
550 # Clear out KV_LOCAL in that case.
551 # TODO: this does not detect a change in the localversion part between
552 # kernel.release and the value that would be generated.
553 if [ "$KV_LOCAL" = "$tmplocal" ]; then
554 KV_LOCAL=
555 else
556 KV_LOCAL=$tmplocal
557 fi
301 558
302 # And we should set KV_FULL to the full expanded version 559 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 560 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 561
305 qeinfo "Found sources for kernel version:" 562 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 563 qeinfo " ${KV_FULL}"
307 564
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 565 return 0
318} 566}
319 567
568# @FUNCTION: get_running_version
569# @DESCRIPTION:
570# It gets the version of the current running kernel and the result is the same as get_version() if the
571# function can find the sources.
320get_running_version() { 572get_running_version() {
321 KV_FULL=$(uname -r) 573 KV_FULL=$(uname -r)
322 574
575 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
576 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
577 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
578 unset KV_FULL
579 get_version
580 return $?
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 581 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 582 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL 583 unset KV_FULL
326 get_version 584 get_version
327 return $? 585 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 586 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
331 get_version 589 get_version
332 return $? 590 return $?
333 else 591 else
334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 592 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 593 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 594 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
337 KV_PATCH=${KV_PATCH//-*} 595 KV_PATCH=${KV_PATCH//-*}
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 596 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
339 && KV_EXTRA="-${KV_FULL#*-}"
340 fi 597 fi
341 return 0 598 return 0
599}
600
601# This next function is named with the eclass prefix to avoid conflicts with
602# some old versionator-like eclass functions.
603
604# @FUNCTION: linux-info_get_any_version
605# @DESCRIPTION:
606# This attempts to find the version of the sources, and otherwise falls back to
607# the version of the running kernel.
608linux-info_get_any_version() {
609 get_version
610 if [[ $? -ne 0 ]]; then
611 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
612 get_running_version
613 fi
342} 614}
343 615
344 616
345# ebuild check functions 617# ebuild check functions
346# --------------------------------------- 618# ---------------------------------------
347 619
620# @FUNCTION: check_kernel_built
621# @DESCRIPTION:
622# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 623check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 624 # if we haven't determined the version yet, we need to
625 require_configured_kernel
350 get_version; 626 get_version
351 627
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 628 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
353 then 629 then
354 eerror "These sources have not yet been prepared." 630 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 631 eerror "We cannot build against an unprepared tree."
362 eerror "Then please try merging this module again." 638 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 639 die "Kernel sources need compiling first"
364 fi 640 fi
365} 641}
366 642
643# @FUNCTION: check_modules_supported
644# @DESCRIPTION:
645# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 646check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 647 # if we haven't determined the version yet, we need too.
648 require_configured_kernel
369 get_version; 649 get_version
370 650
371 if ! linux_chkconfig_builtin "MODULES" 651 if ! linux_chkconfig_builtin "MODULES"
372 then 652 then
373 eerror "These sources do not support loading external modules." 653 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 654 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." 655 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 656 die "No support for external modules in ${KV_FULL} config"
377 fi 657 fi
378} 658}
379 659
660# @FUNCTION: check_extra_config
661# @DESCRIPTION:
662# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
663# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 664check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 665 local config negate die error reworkmodulenames
666 local soft_errors_count=0 hard_errors_count=0 config_required=0
667 # store the value of the QA check, because otherwise we won't catch usages
668 # after if check_extra_config is called AND other direct calls are done
669 # later.
670 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
383 671
384 # if we haven't determined the version yet, we need too. 672 # if we haven't determined the version yet, we need to
385 get_version; 673 linux-info_get_any_version
386 674
675 # Determine if we really need a .config. The only time when we don't need
676 # one is when all of the CONFIG_CHECK options are prefixed with "~".
677 for config in ${CONFIG_CHECK}
678 do
679 if [[ "${config:0:1}" != "~" ]]; then
680 config_required=1
681 break
682 fi
683 done
684
685 if [[ ${config_required} == 0 ]]; then
686 # In the case where we don't require a .config, we can now bail out
687 # if the user has no .config as there is nothing to do. Otherwise
688 # code later will cause a failure due to missing .config.
689 if ! linux_config_exists; then
690 ewarn "Unable to check for the following kernel config options due"
691 ewarn "to absence of any configured kernel sources or compiled"
692 ewarn "config:"
693 for config in ${CONFIG_CHECK}; do
694 local_error="ERROR_${config#\~}"
695 msg="${!local_error}"
696 if [[ "x${msg}" == "x" ]]; then
697 local_error="WARNING_${config#\~}"
698 msg="${!local_error}"
699 fi
700 ewarn " - ${config#\~}${msg:+ - }${msg}"
701 done
702 ewarn "You're on your own to make sure they are set if needed."
703 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
704 return 0
705 fi
706 else
707 require_configured_kernel
708 fi
709
387 einfo "Checking for suitable kernel configuration options:" 710 einfo "Checking for suitable kernel configuration options..."
711
388 for config in ${CONFIG_CHECK} 712 for config in ${CONFIG_CHECK}
389 do 713 do
390 # if we specify any fatal, ensure we honor them 714 # if we specify any fatal, ensure we honor them
391 die=1 715 die=1
392 error=0 716 error=0
393 negate=0 717 negate=0
394 reworkmodulenames=0 718 reworkmodulenames=0
395 719
396 if [[ -z ${config//\!*} ]]; then 720 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 721 die=0
398 config=${config:1} 722 config=${config:1}
399 fi 723 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 724 die=0
402 reworkmodulenames=1 725 reworkmodulenames=1
403 config=${config:1} 726 config=${config:1}
404 fi 727 fi
405 if [[ -z ${config/\~*} ]]; then 728 if [[ ${config:0:1} == "!" ]]; then
406 die=0 729 negate=1
407 config=${config:1} 730 config=${config:1}
408 fi 731 fi
409 732
410 if [[ ${negate} == 1 ]]; then 733 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 734 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 735 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 736 local temp_config="${config//*:}" i n
414 config="${config//:*}" 737 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 738 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 739 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 740 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 741 [[ -z ${n//\(*} ]] && \
422 fi 745 fi
423 else 746 else
424 linux_chkconfig_present ${config} || error=1 747 linux_chkconfig_present ${config} || error=1
425 fi 748 fi
426 749
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 750 if [[ ${error} > 0 ]]; then
751 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 752 local_error="ERROR_${config}"
753 local_error="${!local_error}"
754
755 if [[ -z "${local_error}" ]]; then
756 # using old, deprecated format.
757 local_error="${config}_ERROR"
433 local_error="${!local_error}" 758 local_error="${!local_error}"
434 759 fi
435 if [[ -z "${local_error}" ]]; then 760 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 761 #soft errors can be warnings
437 local_error="${config}_ERROR" 762 local_error="WARNING_${config}"
438 local_error="${!local_error}" 763 local_error="${!local_error}"
764 if [[ -n "${local_error}" ]] ; then
765 report_func="ewarn"
439 fi 766 fi
440
441 if [[ -z "${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 " ${local_error}"
448 fi 767 fi
768
769 if [[ -z "${local_error}" ]]; then
770 [[ ${error} == 1 ]] \
771 && local_error="is not set when it should be." \
772 || local_error="should not be set. But it is."
773 local_error="CONFIG_${config}:\t ${local_error}"
774 fi
775 if [[ ${die} == 0 ]]; then
776 ${report_func} " ${local_error}"
777 soft_errors_count=$[soft_errors_count + 1]
778 else
779 ${report_func} " ${local_error}"
780 hard_errors_count=$[hard_errors_count + 1]
781 fi
449 fi 782 fi
450 done 783 done
451 784
452 if [[ ${error} > 0 ]]; then 785 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 786 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 787 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 788 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 789 eerror "this package again."
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
458 die "Incorrect kernel configuration options" 791 die "Incorrect kernel configuration options"
792 elif [[ ${soft_errors_count} > 0 ]]; then
793 ewarn "Please check to make sure these options are set correctly."
794 ewarn "Failure to do so may cause unexpected problems."
795 else
796 eend 0
459 fi 797 fi
460 fi 798 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
461} 799}
462 800
463check_zlibinflate() { 801check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 802 # if we haven't determined the version yet, we need to
803 require_configured_kernel
465 get_version; 804 get_version
466 805
467 # although I restructured this code - I really really really dont support it! 806 # although I restructured this code - I really really really dont support it!
468 807
469 # bug #27882 - zlib routines are only linked into the kernel 808 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 809 # if something compiled into the kernel calls them
477 local DEFLATE 816 local DEFLATE
478 817
479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 818 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
480 819
481 ebegin "checking ZLIB_INFLATE" 820 ebegin "checking ZLIB_INFLATE"
482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 821 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
483 eend $? 822 eend $?
484 [ "$?" != 0 ] && die 823 [ "$?" != 0 ] && die
485 824
486 ebegin "checking ZLIB_DEFLATE" 825 ebegin "checking ZLIB_DEFLATE"
487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 826 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
488 eend $? 827 eend $?
489 [ "$?" != 0 ] && die 828 [ "$?" != 0 ] && die
490 829
491 local LINENO_START 830 local LINENO_START
492 local LINENO_END 831 local LINENO_END
530} 869}
531 870
532################################ 871################################
533# Default pkg_setup 872# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 873# Also used when inheriting linux-mod to force a get_version call
535 874# @FUNCTION: linux-info_pkg_setup
875# @DESCRIPTION:
876# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
877# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 878linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 879 linux-info_get_any_version
880
881 if kernel_is 2 4; then
882 if [ "$( gcc-major-version )" -eq "4" ] ; then
883 echo
884 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
885 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
886 echo
887 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
888 ewarn "newer kernel that supports gcc-4."
889 echo
890 ewarn "Also be aware that bugreports about gcc-4 not working"
891 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
892 echo
893 epause 10
894 fi
895 fi
896
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 897 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 898}

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