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1# Copyright 1999-2004 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 1.29 2005/07/11 15:08:06 swegener Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.89 2011/08/18 14:58:57 vapier 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"
27# ERROR_CFG <string> The error message to display when the above check 44#
45# To simply warn about a missing option, prepend a '~'.
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
28# fails. <CFG> should reference the appropriate option 58# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
29# as above. ie: ERROR_MTRR="MTRR exists in the .config 59#
30# but shouldn't!!" 60# e.g.: ERROR_MTRR="MTRR exists in the .config but shouldn't!!"
31# KBUILD_OUTPUT <string> This is passed on commandline, or can be set from 61
32# 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
33# which is to be used as the kernel object directory. 65# which is to be used as the kernel object directory.
34 66
35# 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
36# set by hand. These are as follows: 68# set by hand. These are as follows:
37# 69
38# Env Var Option Description 70# @ECLASS-VARIABLE: KV_FULL
39# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 71# @DESCRIPTION:
40# 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
41# KV_MINOR <integer> The kernel minor version. ie: 6 73
42# KV_PATCH <integer> The kernel patch version. ie: 9 74# @ECLASS-VARIABLE: KV_MAJOR
43# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 75# @DESCRIPTION:
44# 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
45# 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
46# KERNEL_DIR is invalid. 97# KERNEL_DIR is invalid.
47# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 98
48# koutput is used. This should be used for referencing 99# @ECLASS-VARIABLE: KV_OUT_DIR
49# .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.
50 103
51# And to ensure all the weirdness with crosscompile 104# And to ensure all the weirdness with crosscompile
52inherit toolchain-funcs versionator 105inherit toolchain-funcs versionator
53 106
54EXPORT_FUNCTIONS pkg_setup 107EXPORT_FUNCTIONS pkg_setup
108
109DEPEND=""
110RDEPEND=""
55 111
56# Overwritable environment Var's 112# Overwritable environment Var's
57# --------------------------------------- 113# ---------------------------------------
58KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 114KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
59 115
63case ${ARCH} in 119case ${ARCH} in
64 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 120 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
65 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 121 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
66esac 122esac
67 123
68# These are legacy wrappers for toolchain-funcs. 124# @FUNCTION: set_arch_to_kernel
69# I dont like them here, but oh well. 125# @DESCRIPTION:
126# Set the env ARCH to match what the kernel expects.
70set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 127set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
128# @FUNCTION: set_arch_to_portage
129# @DESCRIPTION:
130# Set the env ARCH to match what portage expects.
71set_arch_to_portage() { export ARCH="$(tc-arch)"; } 131set_arch_to_portage() { export ARCH=$(tc-arch); }
72 132
73# qeinfo "Message" 133# qeinfo "Message"
74# ------------------- 134# -------------------
75# qeinfo is a quiet einfo call when EBUILD_PHASE 135# qeinfo is a quiet einfo call when EBUILD_PHASE
76# should not have visible output. 136# should not have visible output.
86 esac 146 esac
87 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 147 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
88} 148}
89 149
90qeinfo() { qout einfo "${@}" ; } 150qeinfo() { qout einfo "${@}" ; }
151qewarn() { qout ewarn "${@}" ; }
91qeerror() { qout eerror "${@}" ; } 152qeerror() { qout eerror "${@}" ; }
92 153
93# File Functions 154# File Functions
94# --------------------------------------- 155# ---------------------------------------
95 156
96# getfilevar accepts 2 vars as follows: 157# @FUNCTION: getfilevar
97# getfilevar <VARIABLE> <CONFIGFILE> 158# @USAGE: variable configfile
98 159# @RETURN: the value of the variable
160# @DESCRIPTION:
161# It detects the value of the variable defined in the file configfile. This is
162# done by including the configfile, and printing the variable with Make.
163# It WILL break if your makefile has missing dependencies!
99getfilevar() { 164getfilevar() {
100local ERROR workingdir basefname basedname myARCH="${ARCH}" 165local ERROR basefname basedname myARCH="${ARCH}"
101 ERROR=0 166 ERROR=0
102 167
103 [ -z "${1}" ] && ERROR=1 168 [ -z "${1}" ] && ERROR=1
104 [ ! -f "${2}" ] && ERROR=1 169 [ ! -f "${2}" ] && ERROR=1
105 170
107 then 172 then
108 echo -e "\n" 173 echo -e "\n"
109 eerror "getfilevar requires 2 variables, with the second a valid file." 174 eerror "getfilevar requires 2 variables, with the second a valid file."
110 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 175 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
111 else 176 else
112 workingdir=${PWD}
113 basefname=$(basename ${2}) 177 basefname="$(basename ${2})"
114 basedname=$(dirname ${2}) 178 basedname="$(dirname ${2})"
115 unset ARCH 179 unset ARCH
116 180
117 cd ${basedname} 181 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
118 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 182 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
119 make ${BUILD_FIXES} -s -f - e 2>/dev/null
120 cd ${workingdir}
121 183
122 ARCH=${myARCH} 184 ARCH=${myARCH}
123 fi 185 fi
124} 186}
125 187
188# @FUNCTION: getfilevar_noexec
189# @USAGE: variable configfile
190# @RETURN: the value of the variable
191# @DESCRIPTION:
192# It detects the value of the variable defined in the file configfile.
193# This is done with sed matching an expression only. If the variable is defined,
194# you will run into problems. See getfilevar for those cases.
195getfilevar_noexec() {
196 local ERROR basefname basedname mycat myARCH="${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 ${KV_OUT_DIR}"
276 fi
277}
278
279# @FUNCTION: linux_chkconfig_present
280# @USAGE: option
281# @RETURN: true or false
282# @DESCRIPTION:
283# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
284# If linux_config_exists returns false, the results of this are UNDEFINED. You
285# MUST call linux_config_exists first.
126linux_chkconfig_present() { 286linux_chkconfig_present() {
287 linux_config_qa_check linux_chkconfig_present
127local RESULT 288 local RESULT
289 local config
290 config="${KV_OUT_DIR}/.config"
291 [ ! -f "${config}" ] && config="/proc/config.gz"
128 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 292 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
129 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 293 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
130} 294}
131 295
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.
132linux_chkconfig_module() { 303linux_chkconfig_module() {
304 linux_config_qa_check linux_chkconfig_module
133local RESULT 305 local RESULT
306 local config
307 config="${KV_OUT_DIR}/.config"
308 [ ! -f "${config}" ] && config="/proc/config.gz"
134 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 309 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
135 [ "${RESULT}" = "m" ] && return 0 || return 1 310 [ "${RESULT}" = "m" ] && return 0 || return 1
136} 311}
137 312
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.
138linux_chkconfig_builtin() { 320linux_chkconfig_builtin() {
321 linux_config_qa_check linux_chkconfig_builtin
139local RESULT 322 local RESULT
323 local config
324 config="${KV_OUT_DIR}/.config"
325 [ ! -f "${config}" ] && config="/proc/config.gz"
140 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 326 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
141 [ "${RESULT}" = "y" ] && return 0 || return 1 327 [ "${RESULT}" = "y" ] && return 0 || return 1
142} 328}
143 329
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.
144linux_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"
145 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 getfilevar_noexec "CONFIG_${1}" "${config}"
146} 343}
147 344
148# Versioning Functions 345# Versioning Functions
149# --------------------------------------- 346# ---------------------------------------
150 347
151# 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.
152# 354#
355# @CODE
153# For Example where KV = 2.6.9 356# For Example where KV = 2.6.9
154# kernel_is 2 4 returns false 357# kernel_is 2 4 returns false
155# kernel_is 2 returns true 358# kernel_is 2 returns true
156# kernel_is 2 6 returns true 359# kernel_is 2 6 returns true
157# kernel_is 2 6 8 returns false 360# kernel_is 2 6 8 returns false
158# kernel_is 2 6 9 returns true 361# kernel_is 2 6 9 returns true
159# 362# @CODE
363
160# got the jist yet? 364# got the jist yet?
161 365
162kernel_is() { 366kernel_is() {
163 # if we haven't determined the version yet, we need too. 367 # if we haven't determined the version yet, we need to.
164 get_version; 368 linux-info_get_any_version
369
165 local operator test value x=0 y=0 z=0 370 local operator testagainst value x=0 y=0 z=0
166 371
167 case ${1} in 372 case ${1} in
168 lt) operator="-lt"; shift;; 373 -lt|lt) operator="-lt"; shift;;
169 gt) operator="-gt"; shift;; 374 -gt|gt) operator="-gt"; shift;;
170 le) operator="-le"; shift;; 375 -le|le) operator="-le"; shift;;
171 ge) operator="-ge"; shift;; 376 -ge|ge) operator="-ge"; shift;;
172 eq) operator="-eq"; shift;; 377 -eq|eq) operator="-eq"; shift;;
173 *) operator="-eq";; 378 *) operator="-eq";;
174 esac 379 esac
175 380
176 for x in ${@}; do 381 for x in ${@}; do
177 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 382 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
178 value="${value}${x}" 383 value="${value}${x}"
179 z=$((${z} + 1)) 384 z=$((${z} + 1))
180 385
181 case ${z} in 386 case ${z} in
182 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 387 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
183 test="${test}${KV_MAJOR}";; 388 testagainst="${testagainst}${KV_MAJOR}";;
184 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;
185 test="${test}${KV_MINOR}";; 390 testagainst="${testagainst}${KV_MINOR}";;
186 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;
187 test="${test}${KV_PATCH}";; 392 testagainst="${testagainst}${KV_PATCH}";;
188 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 393 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
189 esac 394 esac
190 done 395 done
191 396
192 [ ${test} ${operator} ${value} ] && return 0 || return 1 397 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
193} 398}
194 399
400get_localversion() {
401 local lv_list i x
402
403 # ignore files with ~ in it.
404 for i in $(ls ${1}/localversion* 2>/dev/null); do
405 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
406 done
407
408 for i in ${lv_list}; do
409 x="${x}$(<${i})"
410 done
411 x=${x/ /}
412 echo ${x}
413}
414
415# Check if the Makefile is valid for direct parsing.
416# Check status results:
417# - PASS, use 'getfilevar' to extract values
418# - FAIL, use 'getfilevar_noexec' to extract values
419# The check may fail if:
420# - make is not present
421# - corruption exists in the kernel makefile
422get_makefile_extract_function() {
423 local a='' b='' mkfunc='getfilevar'
424 a="$(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).
195get_version() { 443get_version() {
196 local kbuild_output 444 local kbuild_output mkfunc tmplocal
197 445
198 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
199 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
200 [ -n "${KV_FULL}" ] && return 0 448 [ -n "${KV_FULL}" ] && return 0
201 449
202 # if we dont know KV_FULL, then we need too. 450 # if we dont know KV_FULL, then we need too.
203 # 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
204 unset KV_DIR 452 unset KV_DIR
205 453
206 # 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 "${get_version_warning_done}" ] && \
207 qeinfo "Determining the location of the kernel source code" 456 qeinfo "Determining the location of the kernel source code"
208 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 457 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
209 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 458 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
210 459
211 if [ -z "${KV_DIR}" ] 460 if [ -z "${KV_DIR}" ]
212 then 461 then
462 if [ -z "${get_version_warning_done}" ]; then
463 get_version_warning_done=1
213 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 464 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
214 qeinfo "This package requires Linux sources." 465 #qeinfo "This package requires Linux sources."
215 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 466 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
216 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 467 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
217 qeinfo "(or the kernel you wish to build against)." 468 qeinfo "(or the kernel you wish to build against)."
218 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 469 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
219 else 470 else
220 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 471 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
472 fi
221 fi 473 fi
222 return 1 474 return 1
223 fi 475 fi
224 476
477 if [ -z "${get_version_warning_done}" ]; then
225 qeinfo "Found kernel source directory:" 478 qeinfo "Found kernel source directory:"
226 qeinfo " ${KV_DIR}" 479 qeinfo " ${KV_DIR}"
480 fi
227 481
228 if [ ! -s "${KV_DIR}/Makefile" ] 482 if [ ! -s "${KV_DIR}/Makefile" ]
229 then 483 then
484 if [ -z "${get_version_warning_done}" ]; then
485 get_version_warning_done=1
230 qeerror "Could not find a Makefile in the kernel source directory." 486 qeerror "Could not find a Makefile in the kernel source directory."
231 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 487 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
488 fi
232 return 1 489 return 1
233 fi 490 fi
234 491
235 # OK so now we know our sources directory, but they might be using 492 # OK so now we know our sources directory, but they might be using
236 # KBUILD_OUTPUT, and we need this for .config and localversions-* 493 # KBUILD_OUTPUT, and we need this for .config and localversions-*
237 # so we better find it eh? 494 # so we better find it eh?
238 # do we pass KBUILD_OUTPUT on the CLI? 495 # do we pass KBUILD_OUTPUT on the CLI?
239 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
240 497
498 # keep track of it
499 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
500
501 # Decide the function used to extract makefile variables.
502 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
503
241 # 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
242 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 505 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
243 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 506 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
244 507
245 # 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
246 # directory name to find version information as this seems insane. 509 # directory name to find version information as this seems insane.
247 # so we parse ${KV_DIR}/Makefile 510 # so we parse ${KERNEL_MAKEFILE}
248 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 511 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
249 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 512 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
250 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 513 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
251 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 514 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
252 515
253 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 516 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
254 then 517 then
518 if [ -z "${get_version_warning_done}" ]; then
519 get_version_warning_done=1
255 qeerror "Could not detect kernel version." 520 qeerror "Could not detect kernel version."
256 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 521 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
522 fi
257 return 1 523 return 1
258 fi 524 fi
259 525
260 # and in newer versions we can also pull LOCALVERSION if it is set. 526 # and in newer versions we can also pull LOCALVERSION if it is set.
261 # but before we do this, we need to find if we use a different object directory. 527 # but before we do this, we need to find if we use a different object directory.
262 # This *WILL* break if the user is using localversions, but we assume it was 528 # This *WILL* break if the user is using localversions, but we assume it was
263 # caught before this if they are. 529 # caught before this if they are.
264 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
265 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}"
266 531
267 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
268 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
269 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
270 then 535 then
271 qeinfo "Found kernel object directory:" 536 qeinfo "Found kernel object directory:"
272 qeinfo " ${KV_OUT_DIR}" 537 qeinfo " ${KV_OUT_DIR}"
273
274 KV_LOCAL="$(cat ${KV_OUT_DIR}/localversion* 2>/dev/null)"
275 fi 538 fi
276 # and if we STILL haven't got it, then we better just set it to KV_DIR 539 # and if we STILL have not got it, then we better just set it to KV_DIR
277 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 540 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
278 541
279 KV_LOCAL="${KV_LOCAL}$(cat ${KV_DIR}/localversion* 2>/dev/null)" 542 # Grab the kernel release from the output directory.
280 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 543 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
281 KV_LOCAL="${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
282 565
283 # And we should set KV_FULL to the full expanded version 566 # And we should set KV_FULL to the full expanded version
284 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}"
285 568
286 qeinfo "Found sources for kernel version:" 569 qeinfo "Found sources for kernel version:"
287 qeinfo " ${KV_FULL}" 570 qeinfo " ${KV_FULL}"
288 571
289 if [ ! -s "${KV_OUT_DIR}/.config" ]
290 then
291 qeerror "Could not find a usable .config in the kernel source directory."
292 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
293 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
294 qeerror "it points to the necessary object directory so that it might find .config."
295 return 1
296 fi
297
298 return 0 572 return 0
299} 573}
300 574
575# @FUNCTION: get_running_version
576# @DESCRIPTION:
577# It gets the version of the current running kernel and the result is the same as get_version() if the
578# function can find the sources.
301get_running_version() { 579get_running_version() {
302 KV_FULL=$(uname -r) 580 KV_FULL=$(uname -r)
303 581
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 $?
304 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 588 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
305 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 589 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
306 unset KV_FULL 590 unset KV_FULL
307 get_version 591 get_version
308 return $? 592 return $?
309 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 593 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
312 get_version 596 get_version
313 return $? 597 return $?
314 else 598 else
315 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 599 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
316 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 600 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
317 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 601 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
318 KV_PATCH=${KV_PATCH//-*} 602 KV_PATCH=${KV_PATCH//-*}
319 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 603 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
320 && KV_EXTRA="-${KV_FULL#*-}"
321 fi 604 fi
322 return 0 605 return 0
606}
607
608# This next function is named with the eclass prefix to avoid conflicts with
609# some old versionator-like eclass functions.
610
611# @FUNCTION: linux-info_get_any_version
612# @DESCRIPTION:
613# This attempts to find the version of the sources, and otherwise falls back to
614# the version of the running kernel.
615linux-info_get_any_version() {
616 get_version
617 if [[ $? -ne 0 ]]; then
618 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
619 get_running_version
620 fi
323} 621}
324 622
325 623
326# ebuild check functions 624# ebuild check functions
327# --------------------------------------- 625# ---------------------------------------
328 626
627# @FUNCTION: check_kernel_built
628# @DESCRIPTION:
629# This function verifies that the current kernel sources have been already prepared otherwise it dies.
329check_kernel_built() { 630check_kernel_built() {
330 # if we haven't determined the version yet, we need too. 631 # if we haven't determined the version yet, we need to
632 require_configured_kernel
331 get_version; 633 get_version
332 634
333 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 635 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
334 then 636 then
335 eerror "These sources have not yet been prepared." 637 eerror "These sources have not yet been prepared."
336 eerror "We cannot build against an unprepared tree." 638 eerror "We cannot build against an unprepared tree."
343 eerror "Then please try merging this module again." 645 eerror "Then please try merging this module again."
344 die "Kernel sources need compiling first" 646 die "Kernel sources need compiling first"
345 fi 647 fi
346} 648}
347 649
650# @FUNCTION: check_modules_supported
651# @DESCRIPTION:
652# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
348check_modules_supported() { 653check_modules_supported() {
349 # if we haven't determined the version yet, we need too. 654 # if we haven't determined the version yet, we need too.
655 require_configured_kernel
350 get_version; 656 get_version
351 657
352 if ! linux_chkconfig_builtin "MODULES" 658 if ! linux_chkconfig_builtin "MODULES"
353 then 659 then
354 eerror "These sources do not support loading external modules." 660 eerror "These sources do not support loading external modules."
355 eerror "to be able to use this module please enable \"Loadable modules support\"" 661 eerror "to be able to use this module please enable \"Loadable modules support\""
356 eerror "in your kernel, recompile and then try merging this module again." 662 eerror "in your kernel, recompile and then try merging this module again."
357 die "No support for external modules in ${KV_FULL} config" 663 die "No support for external modules in ${KV_FULL} config"
358 fi 664 fi
359} 665}
360 666
667# @FUNCTION: check_extra_config
668# @DESCRIPTION:
669# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
670# the prefix ~ is not used) doesn't satisfy the directive.
361check_extra_config() { 671check_extra_config() {
362 local config negate error local_error i n temp_config 672 local config negate die error reworkmodulenames
673 local soft_errors_count=0 hard_errors_count=0 config_required=0
674 # store the value of the QA check, because otherwise we won't catch usages
675 # after if check_extra_config is called AND other direct calls are done
676 # later.
677 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
363 678
364 # if we haven't determined the version yet, we need too. 679 # if we haven't determined the version yet, we need to
365 get_version; 680 linux-info_get_any_version
366 681
367 einfo "Checking for suitable kernel configuration options" 682 # Determine if we really need a .config. The only time when we don't need
683 # one is when all of the CONFIG_CHECK options are prefixed with "~".
368 for config in ${CONFIG_CHECK} 684 for config in ${CONFIG_CHECK}
369 do 685 do
370 negate="${config:0:1}" 686 if [[ "${config:0:1}" != "~" ]]; then
371 if [ "${negate}" == "!" ]; 687 config_required=1
372 then 688 break
689 fi
690 done
691
692 if [[ ${config_required} == 0 ]]; then
693 # In the case where we don't require a .config, we can now bail out
694 # if the user has no .config as there is nothing to do. Otherwise
695 # code later will cause a failure due to missing .config.
696 if ! linux_config_exists; then
697 ewarn "Unable to check for the following kernel config options due"
698 ewarn "to absence of any configured kernel sources or compiled"
699 ewarn "config:"
700 for config in ${CONFIG_CHECK}; do
701 local_error="ERROR_${config#\~}"
702 msg="${!local_error}"
703 if [[ "x${msg}" == "x" ]]; then
704 local_error="WARNING_${config#\~}"
705 msg="${!local_error}"
706 fi
707 ewarn " - ${config#\~}${msg:+ - }${msg}"
708 done
709 ewarn "You're on your own to make sure they are set if needed."
710 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
711 return 0
712 fi
713 else
714 require_configured_kernel
715 fi
716
717 einfo "Checking for suitable kernel configuration options..."
718
719 for config in ${CONFIG_CHECK}
720 do
721 # if we specify any fatal, ensure we honor them
722 die=1
723 error=0
724 negate=0
725 reworkmodulenames=0
726
727 if [[ ${config:0:1} == "~" ]]; then
728 die=0
373 config="${config:1}" 729 config=${config:1}
730 elif [[ ${config:0:1} == "@" ]]; then
731 die=0
732 reworkmodulenames=1
733 config=${config:1}
734 fi
735 if [[ ${config:0:1} == "!" ]]; then
736 negate=1
737 config=${config:1}
738 fi
739
740 if [[ ${negate} == 1 ]]; then
741 linux_chkconfig_present ${config} && error=2
742 elif [[ ${reworkmodulenames} == 1 ]]; then
743 local temp_config="${config//*:}" i n
744 config="${config//:*}"
374 if linux_chkconfig_present ${config} 745 if linux_chkconfig_present ${config}; then
375 then 746 for i in ${MODULE_NAMES}; do
747 n="${i//${temp_config}}"
748 [[ -z ${n//\(*} ]] && \
749 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
750 done
751 error=2
752 fi
753 else
754 linux_chkconfig_present ${config} || error=1
755 fi
756
757 if [[ ${error} > 0 ]]; then
758 local report_func="eerror" local_error
759 local_error="ERROR_${config}"
760 local_error="${!local_error}"
761
762 if [[ -z "${local_error}" ]]; then
763 # using old, deprecated format.
376 local_error="${config}_ERROR" 764 local_error="${config}_ERROR"
377 local_error="${!local_error}" 765 local_error="${!local_error}"
378 [ -n "${local_error}" ] && eerror " ${local_error}" || \
379 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
380 error=1
381 fi 766 fi
382 elif [ "${negate}" == "@" ]; 767 if [[ ${die} == 0 && -z "${local_error}" ]]; then
383 then 768 #soft errors can be warnings
384 # we never call this unless we are using MODULE_NAMES
385
386 config="${config:1}"
387 temp_config="${config//*:}"
388 config="${config//:*}"
389 if linux_chkconfig_present ${config}
390 then
391 local_error="${config}_ERROR" 769 local_error="WARNING_${config}"
392 local_error="${!local_error}" 770 local_error="${!local_error}"
393 [ -n "${local_error}" ] && eerror " ${local_error}" || \ 771 if [[ -n "${local_error}" ]] ; then
394 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is." 772 report_func="ewarn"
395 773 fi
396 for i in ${MODULE_NAMES}
397 do
398 n="${i//${temp_config}}"
399 [ -z "${n//(*}" ] && MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
400 done
401 error=0
402 fi 774 fi
403 else
404 if ! linux_chkconfig_present ${config}
405 then
406 # Support the new syntax first.
407 local_error="ERROR_${config}"
408 local_error="${!local_error}"
409 775
410 # then fall back on the older syntax.
411 if [[ -z ${local_error} ]] ; then 776 if [[ -z "${local_error}" ]]; then
412 local_error="${config}_ERROR" 777 [[ ${error} == 1 ]] \
413 local_error="${!local_error}" 778 && local_error="is not set when it should be." \
414 fi 779 || local_error="should not be set. But it is."
415 780 local_error="CONFIG_${config}:\t ${local_error}"
416 [[ -n ${local_error} ]] && eerror " ${local_error}" || \
417 eerror " CONFIG_${config}:\tshould be set in the kernel configuration, but isn't"
418 error=1
419 fi 781 fi
782 if [[ ${die} == 0 ]]; then
783 ${report_func} " ${local_error}"
784 soft_errors_count=$[soft_errors_count + 1]
785 else
786 ${report_func} " ${local_error}"
787 hard_errors_count=$[hard_errors_count + 1]
788 fi
420 fi 789 fi
421 done 790 done
422 791
423 if [ "${error}" == 1 ] ; 792 if [[ ${hard_errors_count} > 0 ]]; then
424 then
425 eerror "Please check to make sure these options are set correctly." 793 eerror "Please check to make sure these options are set correctly."
794 eerror "Failure to do so may cause unexpected problems."
426 eerror "Once you have satisfied these options, please try merging" 795 eerror "Once you have satisfied these options, please try merging"
427 eerror "this package again." 796 eerror "this package again."
797 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
428 die "Incorrect kernel configuration options" 798 die "Incorrect kernel configuration options"
799 elif [[ ${soft_errors_count} > 0 ]]; then
800 ewarn "Please check to make sure these options are set correctly."
801 ewarn "Failure to do so may cause unexpected problems."
802 else
803 eend 0
429 fi 804 fi
805 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
430} 806}
431 807
432check_zlibinflate() { 808check_zlibinflate() {
433 # if we haven't determined the version yet, we need too. 809 # if we haven't determined the version yet, we need to
810 require_configured_kernel
434 get_version; 811 get_version
435 812
436 # although I restructured this code - I really really really dont support it! 813 # although I restructured this code - I really really really dont support it!
437 814
438 # bug #27882 - zlib routines are only linked into the kernel 815 # bug #27882 - zlib routines are only linked into the kernel
439 # if something compiled into the kernel calls them 816 # if something compiled into the kernel calls them
446 local DEFLATE 823 local DEFLATE
447 824
448 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 825 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
449 826
450 ebegin "checking ZLIB_INFLATE" 827 ebegin "checking ZLIB_INFLATE"
451 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 828 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
452 eend $? 829 eend $?
453 [ "$?" != 0 ] && die 830 [ "$?" != 0 ] && die
454 831
455 ebegin "checking ZLIB_DEFLATE" 832 ebegin "checking ZLIB_DEFLATE"
456 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 833 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
457 eend $? 834 eend $?
458 [ "$?" != 0 ] && die 835 [ "$?" != 0 ] && die
459 836
460 local LINENO_START 837 local LINENO_START
461 local LINENO_END 838 local LINENO_END
499} 876}
500 877
501################################ 878################################
502# Default pkg_setup 879# Default pkg_setup
503# Also used when inheriting linux-mod to force a get_version call 880# Also used when inheriting linux-mod to force a get_version call
504 881# @FUNCTION: linux-info_pkg_setup
882# @DESCRIPTION:
883# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
884# to support the options specified in CONFIG_CHECK (if not null)
505linux-info_pkg_setup() { 885linux-info_pkg_setup() {
506 get_version || die "Unable to calculate Linux Kernel version" 886 linux-info_get_any_version
887
888 if kernel_is 2 4; then
889 if [ "$( gcc-major-version )" -eq "4" ] ; then
890 echo
891 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
892 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
893 echo
894 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
895 ewarn "newer kernel that supports gcc-4."
896 echo
897 ewarn "Also be aware that bugreports about gcc-4 not working"
898 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
899 echo
900 epause 10
901 fi
902 fi
903
507 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 904 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
508} 905}

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