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1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2011 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 1.90 2011/08/22 04:46:32 vapier 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
13# 20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
14# Please direct your bugs to the current eclass maintainer :)
15 21
16# A Couple of env vars are available to effect usage of this eclass 22# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 23# These are as follows:
18# 24
19# Env Var Option Description 25# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 26# @DESCRIPTION:
21# sources. 27# A string containing the directory of the target kernel sources. The default value is
28# "/usr/src/linux"
29
30# @ECLASS-VARIABLE: CONFIG_CHECK
31# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 32# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 33# proceeding with the install.
34#
35# e.g.: CONFIG_CHECK="MTRR"
36#
24# You can also check that an option doesn't exist by 37# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 38# prepending it with an exclamation mark (!).
39#
26# ie: CONFIG_CHECK="!MTRR" 40# e.g.: CONFIG_CHECK="!MTRR"
41#
27# To simply warn about a missing option, prepend a '~'. 42# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check 43# It may be combined with '!'.
44#
45# In general, most checks should be non-fatal. The only time fatal checks should
46# be used is for building kernel modules or cases that a compile will fail
47# without the option.
48#
49# This is to allow usage of binary kernels, and minimal systems without kernel
50# sources.
51
52# @ECLASS-VARIABLE: ERROR_<CFG>
53# @DESCRIPTION:
54# A string containing the error message to display when the check against CONFIG_CHECK
29# fails. <CFG> should reference the appropriate option 55# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
30# as above. ie: ERROR_MTRR="MTRR exists in the .config 56#
31# but shouldn't!!" 57# 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 58
33# the kernel makefile. This contains the directory 59# @ECLASS-VARIABLE: KBUILD_OUTPUT
60# @DESCRIPTION:
61# 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. 62# which is to be used as the kernel object directory.
35 63
36# There are also a couple of variables which are set by this, and shouldn't be 64# There are also a couple of variables which are set by this, and shouldn't be
37# set by hand. These are as follows: 65# set by hand. These are as follows:
38# 66
39# Env Var Option Description 67# @ECLASS-VARIABLE: KV_FULL
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 68# @DESCRIPTION:
41# KV_MAJOR <integer> The kernel major version. ie: 2 69# 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 70
43# KV_PATCH <integer> The kernel patch version. ie: 9 71# @ECLASS-VARIABLE: KV_MAJOR
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 72# @DESCRIPTION:
45# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 73# 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 74
75# @ECLASS-VARIABLE: KV_MINOR
76# @DESCRIPTION:
77# A read-only variable. It's an integer containing the kernel minor version. ie: 6
78
79# @ECLASS-VARIABLE: KV_PATCH
80# @DESCRIPTION:
81# A read-only variable. It's an integer containing the kernel patch version. ie: 9
82
83# @ECLASS-VARIABLE: KV_EXTRA
84# @DESCRIPTION:
85# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
86
87# @ECLASS-VARIABLE: KV_LOCAL
88# @DESCRIPTION:
89# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
90
91# @ECLASS-VARIABLE: KV_DIR
92# @DESCRIPTION:
93# A read-only variable. It's a string containing the kernel source directory, will be null if
47# KERNEL_DIR is invalid. 94# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 95
49# koutput is used. This should be used for referencing 96# @ECLASS-VARIABLE: KV_OUT_DIR
50# .config. 97# @DESCRIPTION:
98# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
99# KBUILD_OUTPUT is used. This should be used for referencing .config.
51 100
52# And to ensure all the weirdness with crosscompile 101# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator 102inherit toolchain-funcs versionator
54 103
55EXPORT_FUNCTIONS pkg_setup 104EXPORT_FUNCTIONS pkg_setup
56 105
57DEPEND="virtual/linux-sources" 106DEPEND=""
58RDEPEND="" 107RDEPEND=""
59 108
60# Overwritable environment Var's 109# Overwritable environment Var's
61# --------------------------------------- 110# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 111KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
67case ${ARCH} in 116case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 117 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 118 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac 119esac
71 120
72# These are legacy wrappers for toolchain-funcs. 121# @FUNCTION: set_arch_to_kernel
73# I dont like them here, but oh well. 122# @DESCRIPTION:
123# Set the env ARCH to match what the kernel expects.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 124set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
125# @FUNCTION: set_arch_to_portage
126# @DESCRIPTION:
127# Set the env ARCH to match what portage expects.
75set_arch_to_portage() { export ARCH="$(tc-arch)"; } 128set_arch_to_portage() { export ARCH=$(tc-arch); }
76 129
77# qeinfo "Message" 130# qeinfo "Message"
78# ------------------- 131# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE 132# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output. 133# should not have visible output.
90 esac 143 esac
91 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 144 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
92} 145}
93 146
94qeinfo() { qout einfo "${@}" ; } 147qeinfo() { qout einfo "${@}" ; }
148qewarn() { qout ewarn "${@}" ; }
95qeerror() { qout eerror "${@}" ; } 149qeerror() { qout eerror "${@}" ; }
96 150
97# File Functions 151# File Functions
98# --------------------------------------- 152# ---------------------------------------
99 153
100# getfilevar accepts 2 vars as follows: 154# @FUNCTION: getfilevar
101# getfilevar <VARIABLE> <CONFIGFILE> 155# @USAGE: variable configfile
102 156# @RETURN: the value of the variable
157# @DESCRIPTION:
158# It detects the value of the variable defined in the file configfile. This is
159# done by including the configfile, and printing the variable with Make.
160# It WILL break if your makefile has missing dependencies!
103getfilevar() { 161getfilevar() {
104local ERROR workingdir basefname basedname myARCH="${ARCH}" 162local ERROR basefname basedname myARCH="${ARCH}"
105 ERROR=0 163 ERROR=0
106 164
107 [ -z "${1}" ] && ERROR=1 165 [ -z "${1}" ] && ERROR=1
108 [ ! -f "${2}" ] && ERROR=1 166 [ ! -f "${2}" ] && ERROR=1
109 167
111 then 169 then
112 echo -e "\n" 170 echo -e "\n"
113 eerror "getfilevar requires 2 variables, with the second a valid file." 171 eerror "getfilevar requires 2 variables, with the second a valid file."
114 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 172 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
115 else 173 else
116 workingdir="${PWD}"
117 basefname="$(basename ${2})" 174 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 175 basedname="$(dirname ${2})"
119 unset ARCH 176 unset ARCH
120 177
121 cd "${basedname}" 178 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 179 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}"
125 180
126 ARCH=${myARCH} 181 ARCH=${myARCH}
127 fi 182 fi
128} 183}
129 184
185# @FUNCTION: getfilevar_noexec
186# @USAGE: variable configfile
187# @RETURN: the value of the variable
188# @DESCRIPTION:
189# It detects the value of the variable defined in the file configfile.
190# This is done with sed matching an expression only. If the variable is defined,
191# you will run into problems. See getfilevar for those cases.
192getfilevar_noexec() {
193 local ERROR basefname basedname mycat myARCH="${ARCH}"
194 ERROR=0
195 mycat='cat'
196
197 [ -z "${1}" ] && ERROR=1
198 [ ! -f "${2}" ] && ERROR=1
199 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
200
201 if [ "${ERROR}" = 1 ]
202 then
203 echo -e "\n"
204 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
205 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
206 else
207 ${mycat} "${2}" | \
208 sed -n \
209 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
210 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
211 s,[[:space:]]*\$,,g ;
212 p
213 }"
214 fi
215}
216
217# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
218# @INTERNAL
219# @DESCRIPTION:
220# This is only set if one of the linux_config_*exists functions has been called.
221# We use it for a QA warning that the check for a config has not been performed,
222# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
223# config is available at all.
224_LINUX_CONFIG_EXISTS_DONE=
225
226linux_config_qa_check() {
227 local f="$1"
228 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
229 ewarn "QA: You called $f before any linux_config_exists!"
230 ewarn "QA: The return value of $f will NOT guaranteed later!"
231 fi
232}
233
234# @FUNCTION: linux_config_src_exists
235# @RETURN: true or false
236# @DESCRIPTION:
237# It returns true if .config exists in a build directory otherwise false
238linux_config_src_exists() {
239 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "${KV_OUT_DIR}/.config" ]
241}
242
243# @FUNCTION: linux_config_bin_exists
244# @RETURN: true or false
245# @DESCRIPTION:
246# It returns true if .config exists in /proc, otherwise false
247linux_config_bin_exists() {
248 export _LINUX_CONFIG_EXISTS_DONE=1
249 [ -s "/proc/config.gz" ]
250}
251
252# @FUNCTION: linux_config_exists
253# @RETURN: true or false
254# @DESCRIPTION:
255# It returns true if .config exists otherwise false
256#
257# This function MUST be checked before using any of the linux_chkconfig_*
258# functions.
259linux_config_exists() {
260 linux_config_src_exists || linux_config_bin_exists
261}
262
263# @FUNCTION: require_configured_kernel
264# @DESCRIPTION:
265# This function verifies that the current kernel is configured (it checks against the existence of .config)
266# otherwise it dies.
267require_configured_kernel() {
268 if ! linux_config_src_exists; then
269 qeerror "Could not find a usable .config in the kernel source directory."
270 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
271 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
272 qeerror "it points to the necessary object directory so that it might find .config."
273 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
274 fi
275}
276
277# @FUNCTION: linux_chkconfig_present
278# @USAGE: option
279# @RETURN: true or false
280# @DESCRIPTION:
281# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
282# If linux_config_exists returns false, the results of this are UNDEFINED. You
283# MUST call linux_config_exists first.
130linux_chkconfig_present() { 284linux_chkconfig_present() {
285 linux_config_qa_check linux_chkconfig_present
131local RESULT 286 local RESULT
287 local config
288 config="${KV_OUT_DIR}/.config"
289 [ ! -f "${config}" ] && config="/proc/config.gz"
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 290 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 291 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 292}
135 293
294# @FUNCTION: linux_chkconfig_module
295# @USAGE: option
296# @RETURN: true or false
297# @DESCRIPTION:
298# It checks that CONFIG_<option>=m is present in the current kernel .config
299# If linux_config_exists returns false, the results of this are UNDEFINED. You
300# MUST call linux_config_exists first.
136linux_chkconfig_module() { 301linux_chkconfig_module() {
302 linux_config_qa_check linux_chkconfig_module
137local RESULT 303 local RESULT
304 local config
305 config="${KV_OUT_DIR}/.config"
306 [ ! -f "${config}" ] && config="/proc/config.gz"
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 307 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
139 [ "${RESULT}" = "m" ] && return 0 || return 1 308 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 309}
141 310
311# @FUNCTION: linux_chkconfig_builtin
312# @USAGE: option
313# @RETURN: true or false
314# @DESCRIPTION:
315# It checks that CONFIG_<option>=y is present in the current kernel .config
316# If linux_config_exists returns false, the results of this are UNDEFINED. You
317# MUST call linux_config_exists first.
142linux_chkconfig_builtin() { 318linux_chkconfig_builtin() {
319 linux_config_qa_check linux_chkconfig_builtin
143local RESULT 320 local RESULT
321 local config
322 config="${KV_OUT_DIR}/.config"
323 [ ! -f "${config}" ] && config="/proc/config.gz"
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 324 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
145 [ "${RESULT}" = "y" ] && return 0 || return 1 325 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 326}
147 327
328# @FUNCTION: linux_chkconfig_string
329# @USAGE: option
330# @RETURN: CONFIG_<option>
331# @DESCRIPTION:
332# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
333# If linux_config_exists returns false, the results of this are UNDEFINED. You
334# MUST call linux_config_exists first.
148linux_chkconfig_string() { 335linux_chkconfig_string() {
336 linux_config_qa_check linux_chkconfig_string
337 local config
338 config="${KV_OUT_DIR}/.config"
339 [ ! -f "${config}" ] && config="/proc/config.gz"
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 340 getfilevar_noexec "CONFIG_${1}" "${config}"
150} 341}
151 342
152# Versioning Functions 343# Versioning Functions
153# --------------------------------------- 344# ---------------------------------------
154 345
155# kernel_is returns true when the version is the same as the passed version 346# @FUNCTION: kernel_is
347# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
348# @RETURN: true or false
349# @DESCRIPTION:
350# It returns true when the current kernel version satisfies the comparison against the passed version.
351# -eq is the default comparison.
156# 352#
353# @CODE
157# For Example where KV = 2.6.9 354# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 355# kernel_is 2 4 returns false
159# kernel_is 2 returns true 356# kernel_is 2 returns true
160# kernel_is 2 6 returns true 357# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 358# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 359# kernel_is 2 6 9 returns true
163# 360# @CODE
361
164# got the jist yet? 362# got the jist yet?
165 363
166kernel_is() { 364kernel_is() {
167 # if we haven't determined the version yet, we need too. 365 # if we haven't determined the version yet, we need to.
168 get_version; 366 linux-info_get_any_version
367
169 local operator test value x=0 y=0 z=0 368 local operator testagainst value x=0 y=0 z=0
170 369
171 case ${1} in 370 case ${1} in
172 lt) operator="-lt"; shift;; 371 -lt|lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 372 -gt|gt) operator="-gt"; shift;;
174 le) operator="-le"; shift;; 373 -le|le) operator="-le"; shift;;
175 ge) operator="-ge"; shift;; 374 -ge|ge) operator="-ge"; shift;;
176 eq) operator="-eq"; shift;; 375 -eq|eq) operator="-eq"; shift;;
177 *) operator="-eq";; 376 *) operator="-eq";;
178 esac 377 esac
179 378
180 for x in ${@}; do 379 for x in ${@}; do
181 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 380 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
182 value="${value}${x}" 381 value="${value}${x}"
183 z=$((${z} + 1)) 382 z=$((${z} + 1))
184 383
185 case ${z} in 384 case ${z} in
186 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 385 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
187 test="${test}${KV_MAJOR}";; 386 testagainst="${testagainst}${KV_MAJOR}";;
188 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done; 387 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do testagainst="${testagainst}0"; done;
189 test="${test}${KV_MINOR}";; 388 testagainst="${testagainst}${KV_MINOR}";;
190 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done; 389 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do testagainst="${testagainst}0"; done;
191 test="${test}${KV_PATCH}";; 390 testagainst="${testagainst}${KV_PATCH}";;
192 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 391 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
193 esac 392 esac
194 done 393 done
195 394
196 [ ${test} ${operator} ${value} ] && return 0 || return 1 395 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
197} 396}
198 397
199get_localversion() { 398get_localversion() {
200 local lv_list i x 399 local lv_list i x
201 400
209 done 408 done
210 x=${x/ /} 409 x=${x/ /}
211 echo ${x} 410 echo ${x}
212} 411}
213 412
413# Check if the Makefile is valid for direct parsing.
414# Check status results:
415# - PASS, use 'getfilevar' to extract values
416# - FAIL, use 'getfilevar_noexec' to extract values
417# The check may fail if:
418# - make is not present
419# - corruption exists in the kernel makefile
420get_makefile_extract_function() {
421 local a='' b='' mkfunc='getfilevar'
422 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
423 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
424 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
425 echo "${mkfunc}"
426}
427
428# internal variable, so we know to only print the warning once
429get_version_warning_done=
430
431# @FUNCTION: get_version
432# @DESCRIPTION:
433# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
434# (if KV_FULL is already set it does nothing).
435#
436# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
437#
438# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
439# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
440# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 441get_version() {
215 local kbuild_output 442 local kbuild_output mkfunc tmplocal
216 443
217 # no need to execute this twice assuming KV_FULL is populated. 444 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 445 # we can force by unsetting KV_FULL
219 [ -n "${KV_FULL}" ] && return 0 446 [ -n "${KV_FULL}" ] && return 0
220 447
221 # if we dont know KV_FULL, then we need too. 448 # 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 449 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
223 unset KV_DIR 450 unset KV_DIR
224 451
225 # KV_DIR will contain the full path to the sources directory we should use 452 # KV_DIR will contain the full path to the sources directory we should use
453 [ -z "${get_version_warning_done}" ] && \
226 qeinfo "Determining the location of the kernel source code" 454 qeinfo "Determining the location of the kernel source code"
227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 455 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 456 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
229 457
230 if [ -z "${KV_DIR}" ] 458 if [ -z "${KV_DIR}" ]
231 then 459 then
460 if [ -z "${get_version_warning_done}" ]; then
461 get_version_warning_done=1
232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 462 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
233 qeinfo "This package requires Linux sources." 463 #qeinfo "This package requires Linux sources."
234 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 464 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
235 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 465 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)." 466 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 467 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else 468 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 469 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
470 fi
240 fi 471 fi
241 return 1 472 return 1
242 fi 473 fi
243 474
475 if [ -z "${get_version_warning_done}" ]; then
244 qeinfo "Found kernel source directory:" 476 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}" 477 qeinfo " ${KV_DIR}"
478 fi
246 479
247 if [ ! -s "${KV_DIR}/Makefile" ] 480 if [ ! -s "${KV_DIR}/Makefile" ]
248 then 481 then
482 if [ -z "${get_version_warning_done}" ]; then
483 get_version_warning_done=1
249 qeerror "Could not find a Makefile in the kernel source directory." 484 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" 485 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
486 fi
251 return 1 487 return 1
252 fi 488 fi
253 489
254 # OK so now we know our sources directory, but they might be using 490 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-* 491 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh? 492 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI? 493 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 494 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
259 495
496 # keep track of it
497 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
498
499 # Decide the function used to extract makefile variables.
500 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
501
260 # And if we didn't pass it, we can take a nosey in the Makefile 502 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 503 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 504 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263 505
264 # And contrary to existing functions I feel we shouldn't trust the 506 # And contrary to existing functions I feel we shouldn't trust the
265 # directory name to find version information as this seems insane. 507 # directory name to find version information as this seems insane.
266 # so we parse ${KV_DIR}/Makefile 508 # so we parse ${KERNEL_MAKEFILE}
267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 509 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 510 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 511 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 512 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
271 513
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 514 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then 515 then
516 if [ -z "${get_version_warning_done}" ]; then
517 get_version_warning_done=1
274 qeerror "Could not detect kernel version." 518 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 519 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
520 fi
276 return 1 521 return 1
277 fi 522 fi
278 523
279 # and in newer versions we can also pull LOCALVERSION if it is set. 524 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 525 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 526 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 527 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 528 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 529
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 530 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 531 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 532 if [ -n "${KV_OUT_DIR}" ];
289 then 533 then
290 qeinfo "Found kernel object directory:" 534 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 535 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 536 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 537 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 538 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 539
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 540 # Grab the kernel release from the output directory.
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 541 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
300 KV_LOCAL="${KV_LOCAL//\"/}" 542 # this function.
543 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
544 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
545 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
546 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
547 else
548 KV_LOCAL=
549 fi
550
551 # KV_LOCAL currently contains the full release; discard the first bits.
552 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
553
554 # If the updated local version was not changed, the tree is not prepared.
555 # Clear out KV_LOCAL in that case.
556 # TODO: this does not detect a change in the localversion part between
557 # kernel.release and the value that would be generated.
558 if [ "$KV_LOCAL" = "$tmplocal" ]; then
559 KV_LOCAL=
560 else
561 KV_LOCAL=$tmplocal
562 fi
301 563
302 # And we should set KV_FULL to the full expanded version 564 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 565 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 566
305 qeinfo "Found sources for kernel version:" 567 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 568 qeinfo " ${KV_FULL}"
307 569
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 570 return 0
318} 571}
319 572
573# @FUNCTION: get_running_version
574# @DESCRIPTION:
575# It gets the version of the current running kernel and the result is the same as get_version() if the
576# function can find the sources.
320get_running_version() { 577get_running_version() {
321 KV_FULL=$(uname -r) 578 KV_FULL=$(uname -r)
322 579
580 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
581 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
582 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
583 unset KV_FULL
584 get_version
585 return $?
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 586 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 587 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL 588 unset KV_FULL
326 get_version 589 get_version
327 return $? 590 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 591 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
331 get_version 594 get_version
332 return $? 595 return $?
333 else 596 else
334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 597 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 598 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 599 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
337 KV_PATCH=${KV_PATCH//-*} 600 KV_PATCH=${KV_PATCH//-*}
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 601 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
339 && KV_EXTRA="-${KV_FULL#*-}"
340 fi 602 fi
341 return 0 603 return 0
604}
605
606# This next function is named with the eclass prefix to avoid conflicts with
607# some old versionator-like eclass functions.
608
609# @FUNCTION: linux-info_get_any_version
610# @DESCRIPTION:
611# This attempts to find the version of the sources, and otherwise falls back to
612# the version of the running kernel.
613linux-info_get_any_version() {
614 get_version
615 if [[ $? -ne 0 ]]; then
616 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
617 get_running_version
618 fi
342} 619}
343 620
344 621
345# ebuild check functions 622# ebuild check functions
346# --------------------------------------- 623# ---------------------------------------
347 624
625# @FUNCTION: check_kernel_built
626# @DESCRIPTION:
627# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 628check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 629 # if we haven't determined the version yet, we need to
630 require_configured_kernel
350 get_version; 631 get_version
351 632
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 633 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
353 then 634 then
354 eerror "These sources have not yet been prepared." 635 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 636 eerror "We cannot build against an unprepared tree."
362 eerror "Then please try merging this module again." 643 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 644 die "Kernel sources need compiling first"
364 fi 645 fi
365} 646}
366 647
648# @FUNCTION: check_modules_supported
649# @DESCRIPTION:
650# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 651check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 652 # if we haven't determined the version yet, we need too.
653 require_configured_kernel
369 get_version; 654 get_version
370 655
371 if ! linux_chkconfig_builtin "MODULES" 656 if ! linux_chkconfig_builtin "MODULES"
372 then 657 then
373 eerror "These sources do not support loading external modules." 658 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 659 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." 660 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 661 die "No support for external modules in ${KV_FULL} config"
377 fi 662 fi
378} 663}
379 664
665# @FUNCTION: check_extra_config
666# @DESCRIPTION:
667# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
668# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 669check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 670 local config negate die error reworkmodulenames
671 local soft_errors_count=0 hard_errors_count=0 config_required=0
672 # store the value of the QA check, because otherwise we won't catch usages
673 # after if check_extra_config is called AND other direct calls are done
674 # later.
675 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
383 676
384 # if we haven't determined the version yet, we need too. 677 # if we haven't determined the version yet, we need to
385 get_version; 678 linux-info_get_any_version
386 679
680 # Determine if we really need a .config. The only time when we don't need
681 # one is when all of the CONFIG_CHECK options are prefixed with "~".
682 for config in ${CONFIG_CHECK}
683 do
684 if [[ "${config:0:1}" != "~" ]]; then
685 config_required=1
686 break
687 fi
688 done
689
690 if [[ ${config_required} == 0 ]]; then
691 # In the case where we don't require a .config, we can now bail out
692 # if the user has no .config as there is nothing to do. Otherwise
693 # code later will cause a failure due to missing .config.
694 if ! linux_config_exists; then
695 ewarn "Unable to check for the following kernel config options due"
696 ewarn "to absence of any configured kernel sources or compiled"
697 ewarn "config:"
698 for config in ${CONFIG_CHECK}; do
699 local_error="ERROR_${config#\~}"
700 msg="${!local_error}"
701 if [[ "x${msg}" == "x" ]]; then
702 local_error="WARNING_${config#\~}"
703 msg="${!local_error}"
704 fi
705 ewarn " - ${config#\~}${msg:+ - }${msg}"
706 done
707 ewarn "You're on your own to make sure they are set if needed."
708 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
709 return 0
710 fi
711 else
712 require_configured_kernel
713 fi
714
387 einfo "Checking for suitable kernel configuration options:" 715 einfo "Checking for suitable kernel configuration options..."
716
388 for config in ${CONFIG_CHECK} 717 for config in ${CONFIG_CHECK}
389 do 718 do
390 # if we specify any fatal, ensure we honor them 719 # if we specify any fatal, ensure we honor them
391 die=1 720 die=1
392 error=0 721 error=0
393 negate=0 722 negate=0
394 reworkmodulenames=0 723 reworkmodulenames=0
395 724
396 if [[ -z ${config//\!*} ]]; then 725 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 726 die=0
398 config=${config:1} 727 config=${config:1}
399 fi 728 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 729 die=0
402 reworkmodulenames=1 730 reworkmodulenames=1
403 config=${config:1} 731 config=${config:1}
404 fi 732 fi
405 if [[ -z ${config/\~*} ]]; then 733 if [[ ${config:0:1} == "!" ]]; then
406 die=0 734 negate=1
407 config=${config:1} 735 config=${config:1}
408 fi 736 fi
409 737
410 if [[ ${negate} == 1 ]]; then 738 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 739 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 740 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 741 local temp_config="${config//*:}" i n
414 config="${config//:*}" 742 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 743 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 744 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 745 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 746 [[ -z ${n//\(*} ]] && \
422 fi 750 fi
423 else 751 else
424 linux_chkconfig_present ${config} || error=1 752 linux_chkconfig_present ${config} || error=1
425 fi 753 fi
426 754
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 755 if [[ ${error} > 0 ]]; then
756 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 757 local_error="ERROR_${config}"
758 local_error="${!local_error}"
759
760 if [[ -z "${local_error}" ]]; then
761 # using old, deprecated format.
762 local_error="${config}_ERROR"
433 local_error="${!local_error}" 763 local_error="${!local_error}"
434 764 fi
435 if [[ -z "${local_error}" ]]; then 765 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 766 #soft errors can be warnings
437 local_error="${config}_ERROR" 767 local_error="WARNING_${config}"
438 local_error="${!local_error}" 768 local_error="${!local_error}"
769 if [[ -n "${local_error}" ]] ; then
770 report_func="ewarn"
439 fi 771 fi
440
441 if [[ -z "${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 " ${local_error}"
448 fi 772 fi
773
774 if [[ -z "${local_error}" ]]; then
775 [[ ${error} == 1 ]] \
776 && local_error="is not set when it should be." \
777 || local_error="should not be set. But it is."
778 local_error="CONFIG_${config}:\t ${local_error}"
779 fi
780 if [[ ${die} == 0 ]]; then
781 ${report_func} " ${local_error}"
782 soft_errors_count=$[soft_errors_count + 1]
783 else
784 ${report_func} " ${local_error}"
785 hard_errors_count=$[hard_errors_count + 1]
786 fi
449 fi 787 fi
450 done 788 done
451 789
452 if [[ ${error} > 0 ]]; then 790 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 791 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 792 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 793 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 794 eerror "this package again."
795 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
458 die "Incorrect kernel configuration options" 796 die "Incorrect kernel configuration options"
797 elif [[ ${soft_errors_count} > 0 ]]; then
798 ewarn "Please check to make sure these options are set correctly."
799 ewarn "Failure to do so may cause unexpected problems."
800 else
801 eend 0
459 fi 802 fi
460 fi 803 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
461} 804}
462 805
463check_zlibinflate() { 806check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 807 # if we haven't determined the version yet, we need to
808 require_configured_kernel
465 get_version; 809 get_version
466 810
467 # although I restructured this code - I really really really dont support it! 811 # although I restructured this code - I really really really dont support it!
468 812
469 # bug #27882 - zlib routines are only linked into the kernel 813 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 814 # if something compiled into the kernel calls them
477 local DEFLATE 821 local DEFLATE
478 822
479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 823 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
480 824
481 ebegin "checking ZLIB_INFLATE" 825 ebegin "checking ZLIB_INFLATE"
482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 826 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
483 eend $? 827 eend $?
484 [ "$?" != 0 ] && die 828 [ "$?" != 0 ] && die
485 829
486 ebegin "checking ZLIB_DEFLATE" 830 ebegin "checking ZLIB_DEFLATE"
487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 831 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
488 eend $? 832 eend $?
489 [ "$?" != 0 ] && die 833 [ "$?" != 0 ] && die
490 834
491 local LINENO_START 835 local LINENO_START
492 local LINENO_END 836 local LINENO_END
530} 874}
531 875
532################################ 876################################
533# Default pkg_setup 877# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 878# Also used when inheriting linux-mod to force a get_version call
535 879# @FUNCTION: linux-info_pkg_setup
880# @DESCRIPTION:
881# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
882# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 883linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 884 linux-info_get_any_version
885
886 if kernel_is 2 4; then
887 if [ "$( gcc-major-version )" -eq "4" ] ; then
888 echo
889 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
890 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
891 echo
892 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
893 ewarn "newer kernel that supports gcc-4."
894 echo
895 ewarn "Also be aware that bugreports about gcc-4 not working"
896 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
897 echo
898 epause 10
899 fi
900 fi
901
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 902 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 903}

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