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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 1.27 2005/07/06 20:20:03 agriffis Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.83 2010/01/17 21:46:55 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: 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
54INHERITED="$INHERITED $ECLASS"
55EXPORT_FUNCTIONS pkg_setup 107EXPORT_FUNCTIONS pkg_setup
108
109DEPEND=""
110RDEPEND=""
56 111
57# Overwritable environment Var's 112# Overwritable environment Var's
58# --------------------------------------- 113# ---------------------------------------
59KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 114KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
60 115
61 116
62# Bug fixes 117# Bug fixes
63# fix to bug #75034 118# fix to bug #75034
64case ${ARCH} in 119case ${ARCH} in
65 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 120 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
66 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 121 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
67esac 122esac
68 123
69# These are legacy wrappers for toolchain-funcs. 124# @FUNCTION: set_arch_to_kernel
70# I dont like them here, but oh well. 125# @DESCRIPTION:
126# Set the env ARCH to match what the kernel expects.
71set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 127set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
128# @FUNCTION: set_arch_to_portage
129# @DESCRIPTION:
130# Set the env ARCH to match what portage expects.
72set_arch_to_portage() { export ARCH="$(tc-arch)"; } 131set_arch_to_portage() { export ARCH=$(tc-arch); }
73 132
74# qeinfo "Message" 133# qeinfo "Message"
75# ------------------- 134# -------------------
76# qeinfo is a quiet einfo call when EBUILD_PHASE 135# qeinfo is a quiet einfo call when EBUILD_PHASE
77# should not have visible output. 136# should not have visible output.
87 esac 146 esac
88 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 147 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
89} 148}
90 149
91qeinfo() { qout einfo "${@}" ; } 150qeinfo() { qout einfo "${@}" ; }
151qewarn() { qout ewarn "${@}" ; }
92qeerror() { qout eerror "${@}" ; } 152qeerror() { qout eerror "${@}" ; }
93 153
94# File Functions 154# File Functions
95# --------------------------------------- 155# ---------------------------------------
96 156
97# getfilevar accepts 2 vars as follows: 157# @FUNCTION: getfilevar
98# getfilevar <VARIABLE> <CONFIGFILE> 158# @USAGE: variable configfile
99 159# @RETURN: the value of the variable
160# @DESCRIPTION:
161# It detects the value of the variable defined in the file configfile. This is
162# done by including the configfile, and printing the variable with Make.
163# It WILL break if your makefile has missing dependencies!
100getfilevar() { 164getfilevar() {
101local ERROR workingdir basefname basedname myARCH="${ARCH}" 165local ERROR basefname basedname myARCH="${ARCH}"
102 ERROR=0 166 ERROR=0
103 167
104 [ -z "${1}" ] && ERROR=1 168 [ -z "${1}" ] && ERROR=1
105 [ ! -f "${2}" ] && ERROR=1 169 [ ! -f "${2}" ] && ERROR=1
106 170
108 then 172 then
109 echo -e "\n" 173 echo -e "\n"
110 eerror "getfilevar requires 2 variables, with the second a valid file." 174 eerror "getfilevar requires 2 variables, with the second a valid file."
111 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 175 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
112 else 176 else
113 workingdir=${PWD}
114 basefname=$(basename ${2}) 177 basefname="$(basename ${2})"
115 basedname=$(dirname ${2}) 178 basedname="$(dirname ${2})"
116 unset ARCH 179 unset ARCH
117 180
118 cd ${basedname} 181 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
119 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 182 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
120 make ${BUILD_FIXES} -s -f - e 2>/dev/null
121 cd ${workingdir}
122 183
123 ARCH=${myARCH} 184 ARCH=${myARCH}
124 fi 185 fi
125} 186}
126 187
188# @FUNCTION: getfilevar_noexec
189# @USAGE: variable configfile
190# @RETURN: the value of the variable
191# @DESCRIPTION:
192# It detects the value of the variable defined in the file configfile.
193# This is done with sed matching an expression only. If the variable is defined,
194# you will run into problems. See getfilevar for those cases.
195getfilevar_noexec() {
196 local ERROR basefname basedname mycat myARCH="${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 $f will NOT gaurenteed later!"
233 fi
234}
235
236# @FUNCTION: linux_config_src_exists
237# @RETURN: true or false
238# @DESCRIPTION:
239# It returns true if .config exists in a build directory otherwise false
240linux_config_src_exists() {
241 export _LINUX_CONFIG_EXISTS_DONE=1
242 [ -s "${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 ${KV_OUT_DIR}"
276 fi
277}
278
279# @FUNCTION: linux_chkconfig_present
280# @USAGE: option
281# @RETURN: true or false
282# @DESCRIPTION:
283# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
284# If linux_config_exists returns false, the results of this are UNDEFINED. You
285# MUST call linux_config_exists first.
127linux_chkconfig_present() { 286linux_chkconfig_present() {
287 linux_config_qa_check linux_chkconfig_present
128local RESULT 288 local RESULT
289 local config
290 config="${KV_OUT_DIR}/.config"
291 [ ! -f "${config}" ] && config="/proc/config.gz"
129 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 292 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
130 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 293 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
131} 294}
132 295
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.
133linux_chkconfig_module() { 303linux_chkconfig_module() {
304 linux_config_qa_check linux_chkconfig_module
134local RESULT 305 local RESULT
306 local config
307 config="${KV_OUT_DIR}/.config"
308 [ ! -f "${config}" ] && config="/proc/config.gz"
135 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 309 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
136 [ "${RESULT}" = "m" ] && return 0 || return 1 310 [ "${RESULT}" = "m" ] && return 0 || return 1
137} 311}
138 312
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.
139linux_chkconfig_builtin() { 320linux_chkconfig_builtin() {
321 linux_config_qa_check linux_chkconfig_builtin
140local RESULT 322 local RESULT
323 local config
324 config="${KV_OUT_DIR}/.config"
325 [ ! -f "${config}" ] && config="/proc/config.gz"
141 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 326 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
142 [ "${RESULT}" = "y" ] && return 0 || return 1 327 [ "${RESULT}" = "y" ] && return 0 || return 1
143} 328}
144 329
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.
145linux_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"
146 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 getfilevar_noexec "CONFIG_${1}" "${config}"
147} 343}
148 344
149# Versioning Functions 345# Versioning Functions
150# --------------------------------------- 346# ---------------------------------------
151 347
152# 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.
153# 354#
355# @CODE
154# For Example where KV = 2.6.9 356# For Example where KV = 2.6.9
155# kernel_is 2 4 returns false 357# kernel_is 2 4 returns false
156# kernel_is 2 returns true 358# kernel_is 2 returns true
157# kernel_is 2 6 returns true 359# kernel_is 2 6 returns true
158# kernel_is 2 6 8 returns false 360# kernel_is 2 6 8 returns false
159# kernel_is 2 6 9 returns true 361# kernel_is 2 6 9 returns true
160# 362# @CODE
363
161# got the jist yet? 364# got the jist yet?
162 365
163kernel_is() { 366kernel_is() {
164 # if we haven't determined the version yet, we need too. 367 # if we haven't determined the version yet, we need to.
165 get_version; 368 linux-info_get_any_version
369
166 local operator test value x=0 y=0 z=0 370 local operator testagainst value x=0 y=0 z=0
167 371
168 case ${1} in 372 case ${1} in
169 lt) operator="-lt"; shift;; 373 -lt|lt) operator="-lt"; shift;;
170 gt) operator="-gt"; shift;; 374 -gt|gt) operator="-gt"; shift;;
171 le) operator="-le"; shift;; 375 -le|le) operator="-le"; shift;;
172 ge) operator="-ge"; shift;; 376 -ge|ge) operator="-ge"; shift;;
173 eq) operator="-eq"; shift;; 377 -eq|eq) operator="-eq"; shift;;
174 *) operator="-eq";; 378 *) operator="-eq";;
175 esac 379 esac
176 380
177 for x in ${@}; do 381 for x in ${@}; do
178 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done 382 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
179 value="${value}${x}" 383 value="${value}${x}"
180 z=$((${z} + 1)) 384 z=$((${z} + 1))
181 385
182 case ${z} in 386 case ${z} in
183 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done; 387 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
184 test="${test}${KV_MAJOR}";; 388 testagainst="${testagainst}${KV_MAJOR}";;
185 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;
186 test="${test}${KV_MINOR}";; 390 testagainst="${testagainst}${KV_MINOR}";;
187 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;
188 test="${test}${KV_PATCH}";; 392 testagainst="${testagainst}${KV_PATCH}";;
189 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 393 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
190 esac 394 esac
191 done 395 done
192 396
193 [ ${test} ${operator} ${value} ] && return 0 || return 1 397 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
194} 398}
195 399
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).
196get_version() { 443get_version() {
197 local kbuild_output 444 local kbuild_output mkfunc
198 445
199 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
200 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
201 [ -n "${KV_FULL}" ] && return 0 448 [ -n "${KV_FULL}" ] && return 0
202 449
203 # if we dont know KV_FULL, then we need too. 450 # if we dont know KV_FULL, then we need too.
204 # 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
205 unset KV_DIR 452 unset KV_DIR
206 453
207 # 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 "${get_version_warning_done}" ] && \
208 qeinfo "Determining the location of the kernel source code" 456 qeinfo "Determining the location of the kernel source code"
209 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 457 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
210 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 458 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
211 459
212 if [ -z "${KV_DIR}" ] 460 if [ -z "${KV_DIR}" ]
213 then 461 then
462 if [ -z "${get_version_warning_done}" ]; then
463 get_version_warning_done=1
214 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 464 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
215 qeinfo "This package requires Linux sources." 465 #qeinfo "This package requires Linux sources."
216 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 466 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
217 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 467 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
218 qeinfo "(or the kernel you wish to build against)." 468 qeinfo "(or the kernel you wish to build against)."
219 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 469 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
220 else 470 else
221 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 471 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
472 fi
222 fi 473 fi
223 return 1 474 return 1
224 fi 475 fi
225 476
477 if [ -z "${get_version_warning_done}" ]; then
226 qeinfo "Found kernel source directory:" 478 qeinfo "Found kernel source directory:"
227 qeinfo " ${KV_DIR}" 479 qeinfo " ${KV_DIR}"
480 fi
228 481
229 if [ ! -s "${KV_DIR}/Makefile" ] 482 if [ ! -s "${KV_DIR}/Makefile" ]
230 then 483 then
484 if [ -z "${get_version_warning_done}" ]; then
485 get_version_warning_done=1
231 qeerror "Could not find a Makefile in the kernel source directory." 486 qeerror "Could not find a Makefile in the kernel source directory."
232 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 487 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
488 fi
233 return 1 489 return 1
234 fi 490 fi
235 491
236 # OK so now we know our sources directory, but they might be using 492 # OK so now we know our sources directory, but they might be using
237 # KBUILD_OUTPUT, and we need this for .config and localversions-* 493 # KBUILD_OUTPUT, and we need this for .config and localversions-*
238 # so we better find it eh? 494 # so we better find it eh?
239 # do we pass KBUILD_OUTPUT on the CLI? 495 # do we pass KBUILD_OUTPUT on the CLI?
240 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
497
498 # keep track of it
499 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
241 500
501 # Decide the function used to extract makefile variables.
502 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
503
242 # 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
243 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 505 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
244 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 506 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
245 507
246 # 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
247 # directory name to find version information as this seems insane. 509 # directory name to find version information as this seems insane.
248 # so we parse ${KV_DIR}/Makefile 510 # so we parse ${KERNEL_MAKEFILE}
249 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 511 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
250 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 512 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
251 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 513 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
252 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 514 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
253 515
254 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 516 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
255 then 517 then
518 if [ -z "${get_version_warning_done}" ]; then
519 get_version_warning_done=1
256 qeerror "Could not detect kernel version." 520 qeerror "Could not detect kernel version."
257 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 521 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
522 fi
258 return 1 523 return 1
259 fi 524 fi
260 525
261 # and in newer versions we can also pull LOCALVERSION if it is set. 526 # and in newer versions we can also pull LOCALVERSION if it is set.
262 # but before we do this, we need to find if we use a different object directory. 527 # but before we do this, we need to find if we use a different object directory.
263 # This *WILL* break if the user is using localversions, but we assume it was 528 # This *WILL* break if the user is using localversions, but we assume it was
264 # caught before this if they are. 529 # caught before this if they are.
265 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
266 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}"
267 531
268 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
269 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
270 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
271 then 535 then
272 qeinfo "Found kernel object directory:" 536 qeinfo "Found kernel object directory:"
273 qeinfo " ${KV_OUT_DIR}" 537 qeinfo " ${KV_OUT_DIR}"
274 538
275 KV_LOCAL="$(cat ${KV_OUT_DIR}/localversion* 2>/dev/null)" 539 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
276 fi 540 fi
277 # and if we STILL haven't got it, then we better just set it to KV_DIR 541 # and if we STILL have not got it, then we better just set it to KV_DIR
278 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 542 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
279 543
280 KV_LOCAL="${KV_LOCAL}$(cat ${KV_DIR}/localversion* 2>/dev/null)" 544 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
545 if linux_config_src_exists; then
281 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 546 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
282 KV_LOCAL="${KV_LOCAL//\"/}" 547 KV_LOCAL="${KV_LOCAL//\"/}"
548
549 # For things like git that can append extra stuff:
550 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
551 linux_chkconfig_builtin LOCALVERSION_AUTO &&
552 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})"
553 fi
283 554
284 # And we should set KV_FULL to the full expanded version 555 # And we should set KV_FULL to the full expanded version
285 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 556 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
286 557
287 qeinfo "Found sources for kernel version:" 558 qeinfo "Found sources for kernel version:"
288 qeinfo " ${KV_FULL}" 559 qeinfo " ${KV_FULL}"
289 560
290 if [ ! -s "${KV_OUT_DIR}/.config" ]
291 then
292 qeerror "Could not find a usable .config in the kernel source directory."
293 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
294 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
295 qeerror "it points to the necessary object directory so that it might find .config."
296 return 1
297 fi
298
299 return 0 561 return 0
300} 562}
301 563
564# @FUNCTION: get_running_version
565# @DESCRIPTION:
566# It gets the version of the current running kernel and the result is the same as get_version() if the
567# function can find the sources.
302get_running_version() { 568get_running_version() {
303 KV_FULL=$(uname -r) 569 KV_FULL=$(uname -r)
304 570
305 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 571 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
306 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 572 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
321 && KV_EXTRA="-${KV_FULL#*-}" 587 && KV_EXTRA="-${KV_FULL#*-}"
322 fi 588 fi
323 return 0 589 return 0
324} 590}
325 591
592# This next function is named with the eclass prefix to avoid conflicts with
593# some old versionator-like eclass functions.
594
595# @FUNCTION: linux-info_get_any_version
596# @DESCRIPTION:
597# This attempts to find the version of the sources, and otherwise falls back to
598# the version of the running kernel.
599linux-info_get_any_version() {
600 get_version
601 if [[ $? -ne 0 ]]; then
602 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
603 get_running_version
604 fi
605}
606
326 607
327# ebuild check functions 608# ebuild check functions
328# --------------------------------------- 609# ---------------------------------------
329 610
611# @FUNCTION: check_kernel_built
612# @DESCRIPTION:
613# This function verifies that the current kernel sources have been already prepared otherwise it dies.
330check_kernel_built() { 614check_kernel_built() {
331 # if we haven't determined the version yet, we need too. 615 # if we haven't determined the version yet, we need to
616 require_configured_kernel
332 get_version; 617 get_version
333 618
334 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 619 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
335 then 620 then
336 eerror "These sources have not yet been prepared." 621 eerror "These sources have not yet been prepared."
337 eerror "We cannot build against an unprepared tree." 622 eerror "We cannot build against an unprepared tree."
338 eerror "To resolve this, please type the following:" 623 eerror "To resolve this, please type the following:"
344 eerror "Then please try merging this module again." 629 eerror "Then please try merging this module again."
345 die "Kernel sources need compiling first" 630 die "Kernel sources need compiling first"
346 fi 631 fi
347} 632}
348 633
634# @FUNCTION: check_modules_supported
635# @DESCRIPTION:
636# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
349check_modules_supported() { 637check_modules_supported() {
350 # if we haven't determined the version yet, we need too. 638 # if we haven't determined the version yet, we need too.
639 require_configured_kernel
351 get_version; 640 get_version
352 641
353 if ! linux_chkconfig_builtin "MODULES" 642 if ! linux_chkconfig_builtin "MODULES"
354 then 643 then
355 eerror "These sources do not support loading external modules." 644 eerror "These sources do not support loading external modules."
356 eerror "to be able to use this module please enable \"Loadable modules support\"" 645 eerror "to be able to use this module please enable \"Loadable modules support\""
357 eerror "in your kernel, recompile and then try merging this module again." 646 eerror "in your kernel, recompile and then try merging this module again."
358 die "No support for external modules in ${KV_FULL} config" 647 die "No support for external modules in ${KV_FULL} config"
359 fi 648 fi
360} 649}
361 650
651# @FUNCTION: check_extra_config
652# @DESCRIPTION:
653# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
654# the prefix ~ is not used) doesn't satisfy the directive.
362check_extra_config() { 655check_extra_config() {
363 local config negate error local_error i n temp_config 656 local config negate die error reworkmodulenames
657 local soft_errors_count=0 hard_errors_count=0 config_required=0
658 # store the value of the QA check, because otherwise we won't catch usages
659 # after if check_extra_config is called AND other direct calls are done
660 # later.
661 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
364 662
365 # if we haven't determined the version yet, we need too. 663 # if we haven't determined the version yet, we need to
366 get_version; 664 linux-info_get_any_version
367 665
368 einfo "Checking for suitable kernel configuration options" 666 # Determine if we really need a .config. The only time when we don't need
667 # one is when all of the CONFIG_CHECK options are prefixed with "~".
369 for config in ${CONFIG_CHECK} 668 for config in ${CONFIG_CHECK}
370 do 669 do
371 negate="${config:0:1}" 670 if [[ "${config:0:1}" != "~" ]]; then
372 if [ "${negate}" == "!" ]; 671 config_required=1
373 then 672 break
673 fi
674 done
675
676 if [[ ${config_required} == 0 ]]; then
677 # In the case where we don't require a .config, we can now bail out
678 # if the user has no .config as there is nothing to do. Otherwise
679 # code later will cause a failure due to missing .config.
680 if ! linux_config_exists; then
681 ewarn "Unable to check for the following kernel config options due"
682 ewarn "to absence of any configured kernel sources or compiled"
683 ewarn "config:"
684 for config in ${CONFIG_CHECK}; do
685 local_error="ERROR_${config#\~}"
686 msg="${!local_error}"
687 if [[ "x${msg}" == "x" ]]; then
688 local_error="WARNING_${config#\~}"
689 msg="${!local_error}"
690 fi
691 ewarn " - ${config#\~}${msg:+ - }${msg}"
692 done
693 ewarn "You're on your own to make sure they are set if needed."
694 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
695 return 0
696 fi
697 else
698 require_configured_kernel
699 fi
700
701 einfo "Checking for suitable kernel configuration options..."
702
703 for config in ${CONFIG_CHECK}
704 do
705 # if we specify any fatal, ensure we honor them
706 die=1
707 error=0
708 negate=0
709 reworkmodulenames=0
710
711 if [[ ${config:0:1} == "~" ]]; then
712 die=0
374 config="${config:1}" 713 config=${config:1}
714 elif [[ ${config:0:1} == "@" ]]; then
715 die=0
716 reworkmodulenames=1
717 config=${config:1}
718 fi
719 if [[ ${config:0:1} == "!" ]]; then
720 negate=1
721 config=${config:1}
722 fi
723
724 if [[ ${negate} == 1 ]]; then
725 linux_chkconfig_present ${config} && error=2
726 elif [[ ${reworkmodulenames} == 1 ]]; then
727 local temp_config="${config//*:}" i n
728 config="${config//:*}"
375 if linux_chkconfig_present ${config} 729 if linux_chkconfig_present ${config}; then
376 then 730 for i in ${MODULE_NAMES}; do
731 n="${i//${temp_config}}"
732 [[ -z ${n//\(*} ]] && \
733 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
734 done
735 error=2
736 fi
737 else
738 linux_chkconfig_present ${config} || error=1
739 fi
740
741 if [[ ${error} > 0 ]]; then
742 local report_func="eerror" local_error
743 local_error="ERROR_${config}"
744 local_error="${!local_error}"
745
746 if [[ -z "${local_error}" ]]; then
747 # using old, deprecated format.
377 local_error="${config}_ERROR" 748 local_error="${config}_ERROR"
378 local_error="${!local_error}" 749 local_error="${!local_error}"
379 [ -n "${local_error}" ] && eerror " ${local_error}" || \
380 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
381 error=1
382 fi 750 fi
383 elif [ "${negate}" == "@" ]; 751 if [[ ${die} == 0 && -z "${local_error}" ]]; then
384 then 752 #soft errors can be warnings
385 # we never call this unless we are using MODULE_NAMES
386
387 config="${config:1}"
388 temp_config="${config//*:}"
389 config="${config//:*}"
390 if linux_chkconfig_present ${config}
391 then
392 local_error="${config}_ERROR" 753 local_error="WARNING_${config}"
393 local_error="${!local_error}" 754 local_error="${!local_error}"
394 [ -n "${local_error}" ] && eerror " ${local_error}" || \ 755 if [[ -n "${local_error}" ]] ; then
395 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is." 756 report_func="ewarn"
396 757 fi
397 for i in ${MODULE_NAMES}
398 do
399 n="${i//${temp_config}}"
400 [ -z "${n//(*}" ] && MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
401 done
402 error=0
403 fi 758 fi
404 else 759
405 if ! linux_chkconfig_present ${config}
406 then
407 # Support the new syntax first.
408 local_error="ERROR_${config}"
409 local_error="${!local_error}"
410
411 # then fall back on the older syntax.
412 if [[ -z ${local_error} ]] ; then 760 if [[ -z "${local_error}" ]]; then
413 local_error="${config}_ERROR" 761 [[ ${error} == 1 ]] \
414 local_error="${!local_error}" 762 && local_error="is not set when it should be." \
415 fi 763 || local_error="should not be set. But it is."
416 764 local_error="CONFIG_${config}:\t ${local_error}"
417 [[ -n ${local_error} ]] && eerror " ${local_error}" || \
418 eerror " CONFIG_${config}:\tshould be set in the kernel configuration, but isn't"
419 error=1
420 fi 765 fi
766 if [[ ${die} == 0 ]]; then
767 ${report_func} " ${local_error}"
768 soft_errors_count=$[soft_errors_count + 1]
769 else
770 ${report_func} " ${local_error}"
771 hard_errors_count=$[hard_errors_count + 1]
772 fi
421 fi 773 fi
422 done 774 done
423 775
424 if [ "${error}" == 1 ] ; 776 if [[ ${hard_errors_count} > 0 ]]; then
425 then
426 eerror "Please check to make sure these options are set correctly." 777 eerror "Please check to make sure these options are set correctly."
778 eerror "Failure to do so may cause unexpected problems."
427 eerror "Once you have satisfied these options, please try merging" 779 eerror "Once you have satisfied these options, please try merging"
428 eerror "this package again." 780 eerror "this package again."
781 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
429 die "Incorrect kernel configuration options" 782 die "Incorrect kernel configuration options"
783 elif [[ ${soft_errors_count} > 0 ]]; then
784 ewarn "Please check to make sure these options are set correctly."
785 ewarn "Failure to do so may cause unexpected problems."
786 else
787 eend 0
430 fi 788 fi
789 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
431} 790}
432 791
433check_zlibinflate() { 792check_zlibinflate() {
434 # if we haven't determined the version yet, we need too. 793 # if we haven't determined the version yet, we need to
794 require_configured_kernel
435 get_version; 795 get_version
436 796
437 # although I restructured this code - I really really really dont support it! 797 # although I restructured this code - I really really really dont support it!
438 798
439 # bug #27882 - zlib routines are only linked into the kernel 799 # bug #27882 - zlib routines are only linked into the kernel
440 # if something compiled into the kernel calls them 800 # if something compiled into the kernel calls them
441 # 801 #
442 # plus, for the cloop module, it appears that there's no way 802 # plus, for the cloop module, it appears that there's no way
443 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS 803 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
444 # is on 804 # is on
445 805
446local INFLATE 806 local INFLATE
447local DEFLATE 807 local DEFLATE
448 808
449 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 809 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
450 810
451 ebegin "checking ZLIB_INFLATE" 811 ebegin "checking ZLIB_INFLATE"
452 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 812 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
453 eend $? 813 eend $?
454 [ "$?" != 0 ] && die 814 [ "$?" != 0 ] && die
455 815
456 ebegin "checking ZLIB_DEFLATE" 816 ebegin "checking ZLIB_DEFLATE"
457 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 817 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
458 eend $? 818 eend $?
459 [ "$?" != 0 ] && die 819 [ "$?" != 0 ] && die
460 820
461
462 local LINENO_START 821 local LINENO_START
463 local LINENO_END 822 local LINENO_END
464 local SYMBOLS 823 local SYMBOLS
465 local x 824 local x
466 825
467 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 826 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
468 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)" 827 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)"
469 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 828 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
470 (( LINENO_END = $LINENO_END - 1 )) 829 (( LINENO_END = $LINENO_END - 1 ))
471 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')" 830 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
477 # we have a winner! 836 # we have a winner!
478 einfo "${x} ensures zlib is linked into your kernel - excellent" 837 einfo "${x} ensures zlib is linked into your kernel - excellent"
479 return 0 838 return 0
480 fi 839 fi
481 done 840 done
482 841
483 eerror 842 eerror
484 eerror "This kernel module requires ZLIB library support." 843 eerror "This kernel module requires ZLIB library support."
485 eerror "You have enabled zlib support in your kernel, but haven't enabled" 844 eerror "You have enabled zlib support in your kernel, but haven't enabled"
486 eerror "enabled any option that will ensure that zlib is linked into your" 845 eerror "enabled any option that will ensure that zlib is linked into your"
487 eerror "kernel." 846 eerror "kernel."
501} 860}
502 861
503################################ 862################################
504# Default pkg_setup 863# Default pkg_setup
505# Also used when inheriting linux-mod to force a get_version call 864# Also used when inheriting linux-mod to force a get_version call
506 865# @FUNCTION: linux-info_pkg_setup
866# @DESCRIPTION:
867# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
868# to support the options specified in CONFIG_CHECK (if not null)
507linux-info_pkg_setup() { 869linux-info_pkg_setup() {
508 get_version || die "Unable to calculate Linux Kernel version" 870 linux-info_get_any_version
871
872 if kernel_is 2 4; then
873 if [ "$( gcc-major-version )" -eq "4" ] ; then
874 echo
875 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
876 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
877 echo
878 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
879 ewarn "newer kernel that supports gcc-4."
880 echo
881 ewarn "Also be aware that bugreports about gcc-4 not working"
882 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
883 echo
884 epause 10
885 fi
886 fi
887
509 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 888 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
510} 889}

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