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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 1.21 2005/01/31 20:03:47 johnm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.71 2009/09/08 12:34:21 robbat2 Exp $
4# 4#
5# Description: This eclass is used as a central eclass for accessing kernel
6# related information for sources already installed.
7# It is vital for linux-mod to function correctly, and is split
8# out so that any ebuild behaviour "templates" are abstracted out
9# using additional eclasses.
10#
11# Maintainer: John Mylchreest <johnm@gentoo.org> 5# Original author: John Mylchreest <johnm@gentoo.org>
12# Copyright 2004 Gentoo Linux 6# Maintainer: kernel-misc@gentoo.org
13# 7#
14# Please direct your bugs to the current eclass maintainer :) 8# Please direct your bugs to the current eclass maintainer :)
9
10# @ECLASS: linux-info.eclass
11# @MAINTAINER:
12# kernel-misc@gentoo.org
13# @BLURB: eclass used for accessing kernel related information
14# @DESCRIPTION:
15# This eclass is used as a central eclass for accessing kernel
16# related information for 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: MTRR_ERROR="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.
103
104# @ECLASS-VARIABLE: I_KNOW_WHAT_I_AM_DOING
105# @DESCRIPTION:
106# Temporary variable for the migration to making linux-info non-fatal.
50 107
51# And to ensure all the weirdness with crosscompile 108# And to ensure all the weirdness with crosscompile
52inherit toolchain-funcs 109inherit toolchain-funcs versionator
53 110
54ECLASS=linux-info
55INHERITED="$INHERITED $ECLASS"
56EXPORT_FUNCTIONS pkg_setup 111EXPORT_FUNCTIONS pkg_setup
112
113DEPEND=""
114RDEPEND=""
115
116[ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && \
117DEPEND="kernel_linux? ( virtual/linux-sources )"
57 118
58# Overwritable environment Var's 119# Overwritable environment Var's
59# --------------------------------------- 120# ---------------------------------------
60KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 121KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
61 122
62 123
63# Bug fixes 124# Bug fixes
64# fix to bug #75034 125# fix to bug #75034
65case ${ARCH} in 126case ${ARCH} in
66 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 127 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
67 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 128 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
68esac 129esac
69 130
70# These are legacy wrappers for toolchain-funcs. 131# @FUNCTION: set_arch_to_kernel
71# I dont like them here, but oh well. 132# @DESCRIPTION:
133# Set the env ARCH to match what the kernel expects.
72set_arch_to_kernel() { $(tc-arch-kernel); } 134set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
135# @FUNCTION: set_arch_to_portage
136# @DESCRIPTION:
137# Set the env ARCH to match what portage expects.
73set_arch_to_portage() { $(tc-arch); } 138set_arch_to_portage() { export ARCH=$(tc-arch); }
74 139
75# qeinfo "Message" 140# qeinfo "Message"
76# ------------------- 141# -------------------
77# qeinfo is a quiet einfo call when EBUILD_PHASE 142# qeinfo is a quiet einfo call when EBUILD_PHASE
78# should not have visible output. 143# should not have visible output.
79qout() { 144qout() {
80 local outputmsg type 145 local outputmsg type
81 type=${1} 146 type=${1}
82 shift 147 shift
83 outputmsg="${@}" 148 outputmsg="${@}"
84 case "${EBUILD_PHASE}" in 149 case "${EBUILD_PHASE}" in
85 depend) unset outputmsg;; 150 depend) unset outputmsg;;
86 clean) unset outputmsg;; 151 clean) unset outputmsg;;
87 preinst) unset outputmsg;; 152 preinst) unset outputmsg;;
88 esac 153 esac
89 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 154 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
90} 155}
91 156
92qeinfo() { qout einfo "${@}" ; } 157qeinfo() { qout einfo "${@}" ; }
93qeerror() { qout eerror "${@}" ; } 158qeerror() { qout eerror "${@}" ; }
94 159
95# File Functions 160# File Functions
96# --------------------------------------- 161# ---------------------------------------
97 162
98# getfilevar accepts 2 vars as follows: 163# @FUNCTION: getfilevar
99# getfilevar <VARIABLE> <CONFIGFILE> 164# @USAGE: variable configfile
100 165# @RETURN: the value of the variable
166# @DESCRIPTION:
167# It detects the value of the variable defined in the file configfile. This is
168# done by including the configfile, and printing the variable with Make.
169# It WILL break if your makefile has missing dependencies!
101getfilevar() { 170getfilevar() {
102local ERROR workingdir basefname basedname myARCH="${ARCH}" 171local ERROR basefname basedname myARCH="${ARCH}"
103 ERROR=0 172 ERROR=0
104 173
105 [ -z "${1}" ] && ERROR=1 174 [ -z "${1}" ] && ERROR=1
106 [ ! -f "${2}" ] && ERROR=1 175 [ ! -f "${2}" ] && ERROR=1
107 176
108 if [ "${ERROR}" = 1 ] 177 if [ "${ERROR}" = 1 ]
109 then 178 then
110 ebeep
111 echo -e "\n" 179 echo -e "\n"
112 eerror "getfilevar requires 2 variables, with the second a valid file." 180 eerror "getfilevar requires 2 variables, with the second a valid file."
113 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 181 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
114 else 182 else
115 workingdir=${PWD}
116 basefname=$(basename ${2}) 183 basefname="$(basename ${2})"
117 basedname=$(dirname ${2}) 184 basedname="$(dirname ${2})"
118 unset ARCH 185 unset ARCH
119 186
120 cd ${basedname} 187 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
121 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 188 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
122 make ${BUILD_FIXES} -f - e 2>/dev/null
123 cd ${workingdir}
124 189
125 ARCH=${myARCH} 190 ARCH=${myARCH}
126 fi 191 fi
127} 192}
128 193
194# @FUNCTION: getfilevar_noexec
195# @USAGE: variable configfile
196# @RETURN: the value of the variable
197# @DESCRIPTION:
198# It detects the value of the variable defined in the file configfile.
199# This is done with sed matching an expression only. If the variable is defined,
200# you will run into problems. See getfilevar for those cases.
201getfilevar_noexec() {
202 local ERROR basefname basedname mycat myARCH="${ARCH}"
203 ERROR=0
204 mycat='cat'
205
206 [ -z "${1}" ] && ERROR=1
207 [ ! -f "${2}" ] && ERROR=1
208 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
209
210 if [ "${ERROR}" = 1 ]
211 then
212 echo -e "\n"
213 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
214 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
215 else
216 ${mycat} "${2}" | \
217 sed -n \
218 -e "/^[[:space:]]*${1}[[:space:]]*=[[:space:]]*\(.*\)\$/{
219 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
220 s,[[:space:]]*\$,,g ;
221 p
222 }"
223 fi
224}
225
226
227# @FUNCTION: linux_config_src_exists
228# @RETURN: true or false
229# @DESCRIPTION:
230# It returns true if .config exists in a build directory otherwise false
231linux_config_src_exists() {
232 [ -s "${KV_OUT_DIR}/.config" ]
233}
234
235# @FUNCTION: linux_config_bin_exists
236# @RETURN: true or false
237# @DESCRIPTION:
238# It returns true if .config exists in /proc, otherwise false
239linux_config_bin_exists() {
240 [ -s "/proc/config.gz" ]
241}
242
243# @FUNCTION: linux_config_exists
244# @RETURN: true or false
245# @DESCRIPTION:
246# It returns true if .config exists otherwise false
247#
248# This function MUST be checked before using any of the linux_chkconfig_*
249# functions.
250linux_config_exists() {
251 linux_config_src_exists || linux_config_bin_exists
252}
253
254# @FUNCTION: require_configured_kernel
255# @DESCRIPTION:
256# This function verifies that the current kernel is configured (it checks against the existence of .config)
257# otherwise it dies.
258require_configured_kernel() {
259 if ! linux_config_src_exists; then
260 qeerror "Could not find a usable .config in the kernel source directory."
261 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
262 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
263 qeerror "it points to the necessary object directory so that it might find .config."
264 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
265 fi
266}
267
268# @FUNCTION: linux_chkconfig_present
269# @USAGE: option
270# @RETURN: true or false
271# @DESCRIPTION:
272# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
273# If linux_config_exists returns false, the results of this are UNDEFINED. You
274# MUST call linux_config_exists first.
129linux_chkconfig_present() { 275linux_chkconfig_present() {
130local RESULT 276local RESULT
277 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
278 local config
279 config="${KV_OUT_DIR}/.config"
280 [ ! -f "${config}" ] && config="/proc/config.gz"
131 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 281 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
132 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 282 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
133} 283}
134 284
285# @FUNCTION: linux_chkconfig_module
286# @USAGE: option
287# @RETURN: true or false
288# @DESCRIPTION:
289# It checks that 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.
135linux_chkconfig_module() { 292linux_chkconfig_module() {
136local RESULT 293local RESULT
294 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
295 local config
296 config="${KV_OUT_DIR}/.config"
297 [ ! -f "${config}" ] && config="/proc/config.gz"
137 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 298 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
138 [ "${RESULT}" = "m" ] && return 0 || return 1 299 [ "${RESULT}" = "m" ] && return 0 || return 1
139} 300}
140 301
302# @FUNCTION: linux_chkconfig_builtin
303# @USAGE: option
304# @RETURN: true or false
305# @DESCRIPTION:
306# It checks that CONFIG_<option>=y 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.
141linux_chkconfig_builtin() { 309linux_chkconfig_builtin() {
142local RESULT 310local RESULT
311 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
312 local config
313 config="${KV_OUT_DIR}/.config"
314 [ ! -f "${config}" ] && config="/proc/config.gz"
143 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 315 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
144 [ "${RESULT}" = "y" ] && return 0 || return 1 316 [ "${RESULT}" = "y" ] && return 0 || return 1
145} 317}
146 318
319# @FUNCTION: linux_chkconfig_string
320# @USAGE: option
321# @RETURN: CONFIG_<option>
322# @DESCRIPTION:
323# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
324# If linux_config_exists returns false, the results of this are UNDEFINED. You
325# MUST call linux_config_exists first.
147linux_chkconfig_string() { 326linux_chkconfig_string() {
327 [ -z "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
328 local config
329 config="${KV_OUT_DIR}/.config"
330 [ ! -f "${config}" ] && config="/proc/config.gz"
148 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 331 getfilevar_noexec "CONFIG_${1}" "${config}"
149} 332}
150 333
151# Versioning Functions 334# Versioning Functions
152# --------------------------------------- 335# ---------------------------------------
153 336
154# kernel_is returns true when the version is the same as the passed version 337# @FUNCTION: kernel_is
338# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
339# @RETURN: true or false
340# @DESCRIPTION:
341# It returns true when the current kernel version satisfies the comparison against the passed version.
342# -eq is the default comparison.
155# 343#
344# @CODE
156# For Example where KV = 2.6.9 345# For Example where KV = 2.6.9
157# kernel_is 2 4 returns false 346# kernel_is 2 4 returns false
158# kernel_is 2 returns true 347# kernel_is 2 returns true
159# kernel_is 2 6 returns true 348# kernel_is 2 6 returns true
160# kernel_is 2 6 8 returns false 349# kernel_is 2 6 8 returns false
161# kernel_is 2 6 9 returns true 350# kernel_is 2 6 9 returns true
162# 351# @CODE
352
163# got the jist yet? 353# got the jist yet?
164 354
165kernel_is() { 355kernel_is() {
166 # if we haven't determined the version yet, we need too. 356 # if we haven't determined the version yet, we need to.
167 get_version; 357 linux-info_get_any_version
168
169 local RESULT operator test value i len
170 RESULT=0
171
172 operator="="
173 if [ "${1}" == "lt" ]
174 then
175 operator="-lt"
176 shift
177 elif [ "${1}" == "gt" ]
178 then
179 operator="-gt"
180 shift
181 elif [ "${1}" == "le" ]
182 then
183 operator="-le"
184 shift
185 elif [ "${1}" == "ge" ]
186 then
187 operator="-ge"
188 shift
189 fi
190 358
191 if [ -n "${1}" ] 359 local operator test value x=0 y=0 z=0
192 then 360
361 case ${1} in
362 -lt|lt) operator="-lt"; shift;;
363 -gt|gt) operator="-gt"; shift;;
364 -le|le) operator="-le"; shift;;
365 -ge|ge) operator="-ge"; shift;;
366 -eq|eq) operator="-eq"; shift;;
367 *) operator="-eq";;
368 esac
369
370 for x in ${@}; do
371 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
193 value="${value}${1}" 372 value="${value}${x}"
373 z=$((${z} + 1))
374
375 case ${z} in
376 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
194 test="${test}${KV_MAJOR}" 377 test="${test}${KV_MAJOR}";;
195 fi 378 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
196 if [ -n "${2}" ] 379 test="${test}${KV_MINOR}";;
197 then 380 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
198 len=$[ 3 - ${#2} ] 381 test="${test}${KV_PATCH}";;
199 for((i=0; i<$len; i++)); do 382 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
200 value="${value}0" 383 esac
201 done 384 done
202 value="${value}${2}"
203
204 len=$[ 3 - ${#KV_MINOR} ]
205 for((i=0; i<$len; i++)); do
206 test="${test}0"
207 done
208 test="${test}${KV_MINOR}"
209 fi
210 if [ -n "${3}" ]
211 then
212 len=$[ 3 - ${#3} ]
213 for((i=0; i<$len; i++)); do
214 value="${value}0"
215 done
216 value="${value}${3}"
217
218 len=$[ 3 - ${#KV_PATCH} ]
219 for((i=0; i<$len; i++)); do
220 test="${test}0"
221 done
222 test="${test}${KV_PATCH}"
223 fi
224 385
225 [ ${test} ${operator} ${value} ] && return 0 || return 1 386 [ ${test} ${operator} ${value} ] && return 0 || return 1
226} 387}
227 388
389get_localversion() {
390 local lv_list i x
391
392 # ignore files with ~ in it.
393 for i in $(ls ${1}/localversion* 2>/dev/null); do
394 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
395 done
396
397 for i in ${lv_list}; do
398 x="${x}$(<${i})"
399 done
400 x=${x/ /}
401 echo ${x}
402}
403
404# internal variable, so we know to only print the warning once
405get_version_warning_done=
406
407# @FUNCTION: get_version
408# @DESCRIPTION:
409# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
410# (if KV_FULL is already set it does nothing).
411#
412# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
413#
414# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
415# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
416# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
228get_version() { 417get_version() {
229 local kbuild_output 418 local kbuild_output
230 419
231 # no need to execute this twice assuming KV_FULL is populated. 420 # no need to execute this twice assuming KV_FULL is populated.
232 # we can force by unsetting KV_FULL 421 # we can force by unsetting KV_FULL
233 [ -n "${KV_FULL}" ] && return 0 422 [ -n "${KV_FULL}" ] && return 0
234 423
235 # if we dont know KV_FULL, then we need too. 424 # if we dont know KV_FULL, then we need too.
236 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 425 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
237 unset KV_DIR 426 unset KV_DIR
238 427
239 # KV_DIR will contain the full path to the sources directory we should use 428 # KV_DIR will contain the full path to the sources directory we should use
429 [ -z "${get_version_warning_done}" ] && \
240 qeinfo "Determining the location of the kernel source code" 430 qeinfo "Determining the location of the kernel source code"
241 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 431 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
242 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 432 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
243 433
244 if [ -z "${KV_DIR}" ] 434 if [ -z "${KV_DIR}" ]
245 then 435 then
436 if [ -z "${get_version_warning_done}" ]; then
437 get_version_warning_done=1
246 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 438 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
247 qeinfo "This package requires Linux sources." 439 #qeinfo "This package requires Linux sources."
248 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 440 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
249 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 441 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
250 qeinfo "(or the kernel you wish to build against)." 442 qeinfo "(or the kernel you wish to build against)."
251 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 443 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
252 else 444 else
253 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 445 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
446 fi
254 fi 447 fi
255 return 1 448 return 1
256 fi 449 fi
257 450
451 if [ -z "${get_version_warning_done}" ]; then
258 qeinfo "Found kernel source directory:" 452 qeinfo "Found kernel source directory:"
259 qeinfo " ${KV_DIR}" 453 qeinfo " ${KV_DIR}"
454 fi
260 455
261 if [ ! -s "${KV_DIR}/Makefile" ] 456 if [ ! -s "${KV_DIR}/Makefile" ]
262 then 457 then
458 if [ -z "${get_version_warning_done}" ]; then
459 get_version_warning_done=1
263 qeerror "Could not find a Makefile in the kernel source directory." 460 qeerror "Could not find a Makefile in the kernel source directory."
264 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 461 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
462 fi
265 return 1 463 return 1
266 fi 464 fi
267 465
268 # OK so now we know our sources directory, but they might be using 466 # OK so now we know our sources directory, but they might be using
269 # KBUILD_OUTPUT, and we need this for .config and localversions-* 467 # KBUILD_OUTPUT, and we need this for .config and localversions-*
270 # so we better find it eh? 468 # so we better find it eh?
271 # do we pass KBUILD_OUTPUT on the CLI? 469 # do we pass KBUILD_OUTPUT on the CLI?
272 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 470 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
273 471
274 # And if we didn't pass it, we can take a nosey in the Makefile 472 # And if we didn't pass it, we can take a nosey in the Makefile
275 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 473 kbuild_output="$(getfilevar_noexec KBUILD_OUTPUT ${KV_DIR}/Makefile)"
276 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 474 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
277 475
278 # And contrary to existing functions I feel we shouldn't trust the 476 # And contrary to existing functions I feel we shouldn't trust the
279 # directory name to find version information as this seems insane. 477 # directory name to find version information as this seems insane.
280 # so we parse ${KV_DIR}/Makefile 478 # so we parse ${KV_DIR}/Makefile
281 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 479 KV_MAJOR="$(getfilevar_noexec VERSION ${KV_DIR}/Makefile)"
282 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 480 KV_MINOR="$(getfilevar_noexec PATCHLEVEL ${KV_DIR}/Makefile)"
283 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 481 KV_PATCH="$(getfilevar_noexec SUBLEVEL ${KV_DIR}/Makefile)"
284 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 482 KV_EXTRA="$(getfilevar_noexec EXTRAVERSION ${KV_DIR}/Makefile)"
285 483
286 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 484 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
287 then 485 then
486 if [ -z "${get_version_warning_done}" ]; then
487 get_version_warning_done=1
288 qeerror "Could not detect kernel version." 488 qeerror "Could not detect kernel version."
289 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 489 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
490 fi
290 return 1 491 return 1
291 fi 492 fi
292 493
293 # and in newer versions we can also pull LOCALVERSION if it is set. 494 # and in newer versions we can also pull LOCALVERSION if it is set.
294 # but before we do this, we need to find if we use a different object directory. 495 # but before we do this, we need to find if we use a different object directory.
295 # This *WILL* break if the user is using localversions, but we assume it was 496 # This *WILL* break if the user is using localversions, but we assume it was
296 # caught before this if they are. 497 # caught before this if they are.
297 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \ 498 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
298 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 499 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
299 500
300 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 501 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
301 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 502 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
302 if [ -n "${KV_OUT_DIR}" ]; 503 if [ -n "${KV_OUT_DIR}" ];
303 then 504 then
304 qeinfo "Found kernel object directory:" 505 qeinfo "Found kernel object directory:"
305 qeinfo " ${KV_OUT_DIR}" 506 qeinfo " ${KV_OUT_DIR}"
306 507
307 KV_LOCAL="$(cat ${KV_OUT_DIR}/localversion* 2>/dev/null)" 508 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
308 fi 509 fi
309 # and if we STILL haven't got it, then we better just set it to KV_DIR 510 # and if we STILL have not got it, then we better just set it to KV_DIR
310 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 511 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
311 512
312 KV_LOCAL="${KV_LOCAL}$(cat ${KV_DIR}/localversion* 2>/dev/null)" 513 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
514 if linux_config_src_exists; then
313 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 515 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
314 KV_LOCAL="${KV_LOCAL//\"/}" 516 KV_LOCAL="${KV_LOCAL//\"/}"
517
518 # For things like git that can append extra stuff:
519 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
520 linux_chkconfig_builtin LOCALVERSION_AUTO &&
521 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})"
522 fi
315 523
316 # And we should set KV_FULL to the full expanded version 524 # And we should set KV_FULL to the full expanded version
317 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 525 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
318 526
319 qeinfo "Found sources for kernel version:" 527 qeinfo "Found sources for kernel version:"
320 qeinfo " ${KV_FULL}" 528 qeinfo " ${KV_FULL}"
321 529
322 if [ ! -s "${KV_OUT_DIR}/.config" ]
323 then
324 qeerror "Could not find a usable .config in the kernel source directory."
325 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
326 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
327 qeerror "it points to the necessary object directory so that it might find .config."
328 return 1
329 fi
330
331 return 0 530 return 0
332} 531}
333 532
533# @FUNCTION: get_running_version
534# @DESCRIPTION:
535# It gets the version of the current running kernel and the result is the same as get_version() if the
536# function can find the sources.
537get_running_version() {
538 KV_FULL=$(uname -r)
334 539
540 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
541 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
542 unset KV_FULL
543 get_version
544 return $?
545 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
546 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
547 unset KV_FULL
548 get_version
549 return $?
550 else
551 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
552 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
553 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
554 KV_PATCH=${KV_PATCH//-*}
555 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
556 && KV_EXTRA="-${KV_FULL#*-}"
557 fi
558 return 0
559}
560
561# This next function is named with the eclass prefix to avoid conflicts with
562# some old versionator-like eclass functions.
563
564# @FUNCTION: linux-info_get_any_version
565# @DESCRIPTION:
566# This attempts to find the version of the sources, and otherwise falls back to
567# the version of the running kernel.
568linux-info_get_any_version() {
569 get_version
570 if [[ $? -ne 0 ]]; then
571 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
572 get_running_version
573 fi
574}
335 575
336 576
337# ebuild check functions 577# ebuild check functions
338# --------------------------------------- 578# ---------------------------------------
339 579
580# @FUNCTION: check_kernel_built
581# @DESCRIPTION:
582# This function verifies that the current kernel sources have been already prepared otherwise it dies.
340check_kernel_built() { 583check_kernel_built() {
341 # if we haven't determined the version yet, we need too. 584 # if we haven't determined the version yet, we need to
585 require_configured_kernel
342 get_version; 586 get_version
343 587
344 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 588 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
345 then 589 then
346 eerror "These sources have not yet been prepared." 590 eerror "These sources have not yet been prepared."
347 eerror "We cannot build against an unprepared tree." 591 eerror "We cannot build against an unprepared tree."
348 eerror "To resolve this, please type the following:" 592 eerror "To resolve this, please type the following:"
354 eerror "Then please try merging this module again." 598 eerror "Then please try merging this module again."
355 die "Kernel sources need compiling first" 599 die "Kernel sources need compiling first"
356 fi 600 fi
357} 601}
358 602
603# @FUNCTION: check_modules_supported
604# @DESCRIPTION:
605# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
359check_modules_supported() { 606check_modules_supported() {
360 # if we haven't determined the version yet, we need too. 607 # if we haven't determined the version yet, we need too.
608 require_configured_kernel
361 get_version; 609 get_version
362 610
363 if ! linux_chkconfig_builtin "MODULES" 611 if ! linux_chkconfig_builtin "MODULES"
364 then 612 then
365 eerror "These sources do not support loading external modules." 613 eerror "These sources do not support loading external modules."
366 eerror "to be able to use this module please enable \"Loadable modules support\"" 614 eerror "to be able to use this module please enable \"Loadable modules support\""
367 eerror "in your kernel, recompile and then try merging this module again." 615 eerror "in your kernel, recompile and then try merging this module again."
368 die "No support for external modules in ${KV_FULL} config" 616 die "No support for external modules in ${KV_FULL} config"
369 fi 617 fi
370} 618}
371 619
620# @FUNCTION: check_extra_config
621# @DESCRIPTION:
622# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
623# the prefix ~ is not used) doesn't satisfy the directive.
372check_extra_config() { 624check_extra_config() {
373 local config negate error local_error i n temp_config 625 local config negate die error reworkmodulenames
626 local soft_errors_count=0 hard_errors_count=0 config_required=0
374 627
375 # if we haven't determined the version yet, we need too. 628 # if we haven't determined the version yet, we need to
376 get_version; 629 linux-info_get_any_version
377 630
378 einfo "Checking for suitable kernel configuration options" 631 # Determine if we really need a .config. The only time when we don't need
632 # one is when all of the CONFIG_CHECK options are prefixed with "~".
379 for config in ${CONFIG_CHECK} 633 for config in ${CONFIG_CHECK}
380 do 634 do
381 negate="${config:0:1}" 635 if [[ "${config:0:1}" != "~" ]]; then
382 if [ "${negate}" == "!" ]; 636 config_required=1
383 then 637 break
638 fi
639 done
640
641 if [[ ${config_required} == 0 ]]; then
642 # In the case where we don't require a .config, we can now bail out
643 # if the user has no .config as there is nothing to do. Otherwise
644 # code later will cause a failure due to missing .config.
645 if ! linux_config_exists; then
646 ewarn "Unable to check for the following kernel config options due"
647 ewarn "to absence of any configured kernel sources or compiled"
648 ewarn "config:"
649 for config in ${CONFIG_CHECK}; do
650 ewarn " - ${config#\~}"
651 done
652 ewarn "You're on your own to make sure they are set if needed."
653 return 0
654 fi
655 else
656 [ -n "${I_KNOW_WHAT_I_AM_DOING}" ] && require_configured_kernel
657 fi
658
659 einfo "Checking for suitable kernel configuration options..."
660
661 for config in ${CONFIG_CHECK}
662 do
663 # if we specify any fatal, ensure we honor them
664 die=1
665 error=0
666 negate=0
667 reworkmodulenames=0
668
669 if [[ ${config:0:1} == "~" ]]; then
670 die=0
384 config="${config:1}" 671 config=${config:1}
672 elif [[ ${config:0:1} == "@" ]]; then
673 die=0
674 reworkmodulenames=1
675 config=${config:1}
676 fi
677 if [[ ${config:0:1} == "!" ]]; then
678 negate=1
679 config=${config:1}
680 fi
681
682 if [[ ${negate} == 1 ]]; then
683 linux_chkconfig_present ${config} && error=2
684 elif [[ ${reworkmodulenames} == 1 ]]; then
685 local temp_config="${config//*:}" i n
686 config="${config//:*}"
385 if linux_chkconfig_present ${config} 687 if linux_chkconfig_present ${config}; then
386 then 688 for i in ${MODULE_NAMES}; do
689 n="${i//${temp_config}}"
690 [[ -z ${n//\(*} ]] && \
691 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
692 done
693 error=2
694 fi
695 else
696 linux_chkconfig_present ${config} || error=1
697 fi
698
699 if [[ ${error} > 0 ]]; then
700 local report_func="eerror" local_error
701 local_error="ERROR_${config}"
702 local_error="${!local_error}"
703
704 if [[ -z "${local_error}" ]]; then
705 # using old, deprecated format.
387 local_error="${config}_ERROR" 706 local_error="${config}_ERROR"
388 local_error="${!local_error}" 707 local_error="${!local_error}"
389 [ -n "${local_error}" ] && eerror " ${local_error}" || \
390 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
391 error=1
392 fi 708 fi
393 elif [ "${negate}" == "@" ]; 709 if [[ ${die} == 0 && -z "${local_error}" ]]; then
394 then 710 #soft errors can be warnings
395 # we never call this unless we are using MODULE_NAMES
396
397 config="${config:1}"
398 temp_config="${config//*:}"
399 config="${config//:*}"
400 if linux_chkconfig_present ${config}
401 then
402 local_error="${config}_ERROR" 711 local_error="WARNING_${config}"
403 local_error="${!local_error}" 712 local_error="${!local_error}"
404 [ -n "${local_error}" ] && eerror " ${local_error}" || \ 713 if [[ -n "${local_error}" ]] ; then
405 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is." 714 report_func="ewarn"
406 715 fi
407 for i in ${MODULE_NAMES}
408 do
409 n="${i//${temp_config}}"
410 [ -z "${n//(*}" ] && MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
411 done
412 error=0
413 fi 716 fi
414 else 717
415 if ! linux_chkconfig_present ${config}
416 then
417 # Support the new syntax first.
418 local_error="ERROR_${config}"
419 local_error="${!local_error}"
420
421 # then fall back on the older syntax.
422 if [[ -z ${local_error} ]] ; then 718 if [[ -z "${local_error}" ]]; then
423 local_error="${config}_ERROR" 719 [[ ${error} == 1 ]] \
424 local_error="${!local_error}" 720 && local_error="is not set when it should be." \
425 fi 721 || local_error="should not be set. But it is."
426 722 local_error="CONFIG_${config}:\t ${local_error}"
427 [[ -n ${local_error} ]] && eerror " ${local_error}" || \
428 eerror " CONFIG_${config}:\tshould be set in the kernel configuration, but isn't"
429 error=1
430 fi 723 fi
724 if [[ ${die} == 0 ]]; then
725 ${report_func} " ${local_error}"
726 soft_errors_count=$[soft_errors_count + 1]
727 else
728 ${report_func} " ${local_error}"
729 hard_errors_count=$[hard_errors_count + 1]
730 fi
431 fi 731 fi
432 done 732 done
433 733
434 if [ "${error}" == 1 ] ; 734 if [[ ${hard_errors_count} > 0 ]]; then
435 then
436 eerror "Please check to make sure these options are set correctly." 735 eerror "Please check to make sure these options are set correctly."
736 eerror "Failure to do so may cause unexpected problems."
437 eerror "Once you have satisfied these options, please try merging" 737 eerror "Once you have satisfied these options, please try merging"
438 eerror "this package again." 738 eerror "this package again."
439 die "Incorrect kernel configuration options" 739 die "Incorrect kernel configuration options"
740 elif [[ ${soft_errors_count} > 0 ]]; then
741 ewarn "Please check to make sure these options are set correctly."
742 ewarn "Failure to do so may cause unexpected problems."
743 else
744 eend 0
440 fi 745 fi
441} 746}
442 747
443check_zlibinflate() { 748check_zlibinflate() {
444 # if we haven't determined the version yet, we need too. 749 # if we haven't determined the version yet, we need to
750 require_configured_kernel
445 get_version; 751 get_version
446 752
447 # although I restructured this code - I really really really dont support it! 753 # although I restructured this code - I really really really dont support it!
448 754
449 # bug #27882 - zlib routines are only linked into the kernel 755 # bug #27882 - zlib routines are only linked into the kernel
450 # if something compiled into the kernel calls them 756 # if something compiled into the kernel calls them
451 # 757 #
452 # plus, for the cloop module, it appears that there's no way 758 # plus, for the cloop module, it appears that there's no way
453 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS 759 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
454 # is on 760 # is on
455 761
456local INFLATE 762 local INFLATE
457local DEFLATE 763 local DEFLATE
458 764
459 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 765 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
460 766
461 ebegin "checking ZLIB_INFLATE" 767 ebegin "checking ZLIB_INFLATE"
462 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 768 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
463 eend $? 769 eend $?
464 [ "$?" != 0 ] && die 770 [ "$?" != 0 ] && die
465 771
466 ebegin "checking ZLIB_DEFLATE" 772 ebegin "checking ZLIB_DEFLATE"
467 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 773 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
468 eend $? 774 eend $?
469 [ "$?" != 0 ] && die 775 [ "$?" != 0 ] && die
470 776
471
472 local LINENO_START 777 local LINENO_START
473 local LINENO_END 778 local LINENO_END
474 local SYMBOLS 779 local SYMBOLS
475 local x 780 local x
476 781
477 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 782 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
478 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)" 783 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)"
479 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 784 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
480 (( LINENO_END = $LINENO_END - 1 )) 785 (( LINENO_END = $LINENO_END - 1 ))
481 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')" 786 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
487 # we have a winner! 792 # we have a winner!
488 einfo "${x} ensures zlib is linked into your kernel - excellent" 793 einfo "${x} ensures zlib is linked into your kernel - excellent"
489 return 0 794 return 0
490 fi 795 fi
491 done 796 done
492 797
493 eerror 798 eerror
494 eerror "This kernel module requires ZLIB library support." 799 eerror "This kernel module requires ZLIB library support."
495 eerror "You have enabled zlib support in your kernel, but haven't enabled" 800 eerror "You have enabled zlib support in your kernel, but haven't enabled"
496 eerror "enabled any option that will ensure that zlib is linked into your" 801 eerror "enabled any option that will ensure that zlib is linked into your"
497 eerror "kernel." 802 eerror "kernel."
511} 816}
512 817
513################################ 818################################
514# Default pkg_setup 819# Default pkg_setup
515# Also used when inheriting linux-mod to force a get_version call 820# Also used when inheriting linux-mod to force a get_version call
516 821# @FUNCTION: linux-info_pkg_setup
822# @DESCRIPTION:
823# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
824# to support the options specified in CONFIG_CHECK (if not null)
517linux-info_pkg_setup() { 825linux-info_pkg_setup() {
518 get_version || die "Unable to calculate Linux Kernel version" 826 linux-info_get_any_version
827
828 if kernel_is 2 4; then
829 if [ "$( gcc-major-version )" -eq "4" ] ; then
830 echo
831 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
832 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
833 echo
834 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
835 ewarn "newer kernel that supports gcc-4."
836 echo
837 ewarn "Also be aware that bugreports about gcc-4 not working"
838 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
839 echo
840 epause 10
841 fi
842 fi
843
519 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 844 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
520} 845}

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