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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 1.18 2005/01/15 21:46:00 johnm 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# <CFG>_ERROR <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
48# koutput is used. This should be used for referencing
49# .config.
50 98
99# @ECLASS-VARIABLE: KV_OUT_DIR
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.
51 103
52ECLASS=linux-info 104# And to ensure all the weirdness with crosscompile
53INHERITED="$INHERITED $ECLASS" 105inherit toolchain-funcs versionator
106
54EXPORT_FUNCTIONS pkg_setup 107EXPORT_FUNCTIONS pkg_setup
108
109DEPEND=""
110RDEPEND=""
55 111
56# Overwritable environment Var's 112# Overwritable environment Var's
57# --------------------------------------- 113# ---------------------------------------
58KERNEL_DIR="${KERNEL_DIR:-/usr/src/linux}" 114KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
59 115
60 116
61# Bug fixes 117# Bug fixes
62
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=${T}/.tmp_gas_check";;
67esac 122esac
68 123
69# Pulled from eutils as it might be more useful only being here since 124# @FUNCTION: set_arch_to_kernel
70# very few ebuilds which dont use this eclass will ever ever use these functions 125# @DESCRIPTION:
71set_arch_to_kernel() { 126# Set the env ARCH to match what the kernel expects.
72 export PORTAGE_ARCH="${ARCH}" 127set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
73 case ${ARCH} in 128# @FUNCTION: set_arch_to_portage
74 x86) export ARCH="i386";; 129# @DESCRIPTION:
75 amd64) export ARCH="x86_64";; 130# Set the env ARCH to match what portage expects.
76 hppa) export ARCH="parisc";; 131set_arch_to_portage() { export ARCH=$(tc-arch); }
77 mips) export ARCH="mips";;
78 *) export ARCH="${ARCH}";;
79 esac
80}
81 132
82# set's ARCH back to what portage expects
83set_arch_to_portage() {
84 export ARCH="${PORTAGE_ARCH}"
85}
86
87
88#
89# qeinfo "Message" 133# qeinfo "Message"
90# ------------------- 134# -------------------
91# qeinfo is a queit einfo call when EBUILD_PHASE 135# qeinfo is a quiet einfo call when EBUILD_PHASE
92# should not have visible output. 136# should not have visible output.
93# 137qout() {
94qeinfo() {
95 local outputmsg 138 local outputmsg type
139 type=${1}
140 shift
96 outputmsg="${@}" 141 outputmsg="${@}"
97 case "${EBUILD_PHASE}" in 142 case "${EBUILD_PHASE}" in
98 depend) unset outputmsg;; 143 depend) unset outputmsg;;
99 clean) unset outputmsg;; 144 clean) unset outputmsg;;
100 preinst) unset outputmsg;; 145 preinst) unset outputmsg;;
101 esac 146 esac
102 [ -n "${outputmsg}" ] && einfo "${outputmsg}" 147 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
103} 148}
104 149
105qeerror() { 150qeinfo() { qout einfo "${@}" ; }
106 local outputmsg 151qewarn() { qout ewarn "${@}" ; }
107 outputmsg="${@}" 152qeerror() { qout eerror "${@}" ; }
108 case "${EBUILD_PHASE}" in
109 depend) unset outputmsg;;
110 clean) unset outputmsg;;
111 preinst) unset outputmsg;;
112 esac
113 [ -n "${outputmsg}" ] && einfo "${outputmsg}"
114}
115
116
117 153
118# File Functions 154# File Functions
119# --------------------------------------- 155# ---------------------------------------
120 156
121# getfilevar accepts 2 vars as follows: 157# @FUNCTION: getfilevar
122# getfilevar <VARIABLE> <CONFIGFILE> 158# @USAGE: variable configfile
123 159# @RETURN: the value of the variable
160# @DESCRIPTION:
161# It detects the value of the variable defined in the file configfile. This is
162# done by including the configfile, and printing the variable with Make.
163# It WILL break if your makefile has missing dependencies!
124getfilevar() { 164getfilevar() {
125local ERROR workingdir basefname basedname xarch 165local ERROR basefname basedname myARCH="${ARCH}"
126 ERROR=0 166 ERROR=0
127 167
128 [ -z "${1}" ] && ERROR=1 168 [ -z "${1}" ] && ERROR=1
129 [ ! -f "${2}" ] && ERROR=1 169 [ ! -f "${2}" ] && ERROR=1
130 170
131 if [ "${ERROR}" = 1 ] 171 if [ "${ERROR}" = 1 ]
132 then 172 then
133 ebeep
134 echo -e "\n" 173 echo -e "\n"
135 eerror "getfilevar requires 2 variables, with the second a valid file." 174 eerror "getfilevar requires 2 variables, with the second a valid file."
136 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 175 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
137 else 176 else
138 workingdir=${PWD}
139 basefname=$(basename ${2}) 177 basefname="$(basename ${2})"
140 basedname=$(dirname ${2}) 178 basedname="$(dirname ${2})"
141 xarch=${ARCH}
142 unset ARCH 179 unset ARCH
143
144 cd ${basedname}
145 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \
146 make ${BUILD_FIXES} -f - e 2>/dev/null
147 cd ${workingdir}
148
149 ARCH=${xarch}
150 fi
151}
152 180
181 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
182 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
183
184 ARCH=${myARCH}
185 fi
186}
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 ${KV_OUT_DIR}"
276 fi
277}
278
279# @FUNCTION: linux_chkconfig_present
280# @USAGE: option
281# @RETURN: true or false
282# @DESCRIPTION:
283# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
284# If linux_config_exists returns false, the results of this are UNDEFINED. You
285# MUST call linux_config_exists first.
153linux_chkconfig_present() { 286linux_chkconfig_present() {
287 linux_config_qa_check linux_chkconfig_present
154local RESULT 288 local RESULT
289 local config
290 config="${KV_OUT_DIR}/.config"
291 [ ! -f "${config}" ] && config="/proc/config.gz"
155 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 292 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
156 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 293 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
157} 294}
158 295
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.
159linux_chkconfig_module() { 303linux_chkconfig_module() {
304 linux_config_qa_check linux_chkconfig_module
160local RESULT 305 local RESULT
306 local config
307 config="${KV_OUT_DIR}/.config"
308 [ ! -f "${config}" ] && config="/proc/config.gz"
161 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 309 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
162 [ "${RESULT}" = "m" ] && return 0 || return 1 310 [ "${RESULT}" = "m" ] && return 0 || return 1
163} 311}
164 312
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.
165linux_chkconfig_builtin() { 320linux_chkconfig_builtin() {
321 linux_config_qa_check linux_chkconfig_builtin
166local RESULT 322 local RESULT
323 local config
324 config="${KV_OUT_DIR}/.config"
325 [ ! -f "${config}" ] && config="/proc/config.gz"
167 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 326 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
168 [ "${RESULT}" = "y" ] && return 0 || return 1 327 [ "${RESULT}" = "y" ] && return 0 || return 1
169} 328}
170 329
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.
171linux_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"
172 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 getfilevar_noexec "CONFIG_${1}" "${config}"
173} 343}
174 344
175# Versioning Functions 345# Versioning Functions
176# --------------------------------------- 346# ---------------------------------------
177 347
178# 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.
179# 354#
355# @CODE
180# For Example where KV = 2.6.9 356# For Example where KV = 2.6.9
181# kernel_is 2 4 returns false 357# kernel_is 2 4 returns false
182# kernel_is 2 returns true 358# kernel_is 2 returns true
183# kernel_is 2 6 returns true 359# kernel_is 2 6 returns true
184# kernel_is 2 6 8 returns false 360# kernel_is 2 6 8 returns false
185# kernel_is 2 6 9 returns true 361# kernel_is 2 6 9 returns true
186# 362# @CODE
363
187# got the jist yet? 364# got the jist yet?
188 365
189kernel_is() { 366kernel_is() {
190 # if we haven't determined the version yet, we need too. 367 # if we haven't determined the version yet, we need to.
191 get_version; 368 linux-info_get_any_version
192
193 local RESULT operator test value i len
194 RESULT=0
195
196 operator="="
197 if [ "${1}" == "lt" ]
198 then
199 operator="-lt"
200 shift
201 elif [ "${1}" == "gt" ]
202 then
203 operator="-gt"
204 shift
205 elif [ "${1}" == "le" ]
206 then
207 operator="-le"
208 shift
209 elif [ "${1}" == "ge" ]
210 then
211 operator="-ge"
212 shift
213 fi
214 369
215 if [ -n "${1}" ] 370 local operator testagainst value x=0 y=0 z=0
216 then 371
372 case ${1} in
373 -lt|lt) operator="-lt"; shift;;
374 -gt|gt) operator="-gt"; shift;;
375 -le|le) operator="-le"; shift;;
376 -ge|ge) operator="-ge"; shift;;
377 -eq|eq) operator="-eq"; shift;;
378 *) operator="-eq";;
379 esac
380
381 for x in ${@}; do
382 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
217 value="${value}${1}" 383 value="${value}${x}"
218 test="${test}${KV_MAJOR}" 384 z=$((${z} + 1))
219 fi 385
220 if [ -n "${2}" ] 386 case ${z} in
221 then 387 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do testagainst="${testagainst}0"; done;
222 len=$[ 3 - ${#2} ] 388 testagainst="${testagainst}${KV_MAJOR}";;
223 for((i=0; i<$len; i++)); do 389 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do testagainst="${testagainst}0"; done;
224 value="${value}0" 390 testagainst="${testagainst}${KV_MINOR}";;
391 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do testagainst="${testagainst}0"; done;
392 testagainst="${testagainst}${KV_PATCH}";;
393 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
394 esac
225 done 395 done
226 value="${value}${2}"
227 396
228 len=$[ 3 - ${#KV_MINOR} ]
229 for((i=0; i<$len; i++)); do
230 test="${test}0"
231 done
232 test="${test}${KV_MINOR}"
233 fi
234 if [ -n "${3}" ]
235 then
236 len=$[ 3 - ${#3} ]
237 for((i=0; i<$len; i++)); do
238 value="${value}0"
239 done
240 value="${value}${3}"
241
242 len=$[ 3 - ${#KV_PATCH} ]
243 for((i=0; i<$len; i++)); do
244 test="${test}0"
245 done
246 test="${test}${KV_PATCH}"
247 fi
248
249 [ ${test} ${operator} ${value} ] && return 0 || return 1 397 [ "${testagainst}" ${operator} "${value}" ] && return 0 || return 1
250} 398}
251 399
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).
252get_version() { 443get_version() {
253 local kbuild_output 444 local kbuild_output mkfunc
254 445
255 # no need to execute this twice assuming KV_FULL is populated. 446 # no need to execute this twice assuming KV_FULL is populated.
256 # we can force by unsetting KV_FULL 447 # we can force by unsetting KV_FULL
257 [ -n "${KV_FULL}" ] && return 448 [ -n "${KV_FULL}" ] && return 0
258 449
259 # if we dont know KV_FULL, then we need too. 450 # if we dont know KV_FULL, then we need too.
260 # 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
261 unset KV_DIR 452 unset KV_DIR
262 453
263 # 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 "${get_version_warning_done}" ] && \
264 qeinfo "Determining the location of the kernel source code" 456 qeinfo "Determining the location of the kernel source code"
265 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 457 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
266 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 458 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
267 459
268 if [ -z "${KV_DIR}" ] 460 if [ -z "${KV_DIR}" ]
269 then 461 then
462 if [ -z "${get_version_warning_done}" ]; then
463 get_version_warning_done=1
270 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 464 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
271 qeinfo "This package requires Linux sources." 465 #qeinfo "This package requires Linux sources."
272 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 466 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
273 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, "
274 qeinfo "(or the kernel you wish to build against)." 468 qeinfo "(or the kernel you wish to build against)."
275 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"
276 else 470 else
277 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."
278 fi 472 fi
279 die "Cannot locate Linux sources at ${KERNEL_DIR}"
280 fi 473 fi
474 return 1
475 fi
281 476
477 if [ -z "${get_version_warning_done}" ]; then
282 qeinfo "Found kernel source directory:" 478 qeinfo "Found kernel source directory:"
283 qeinfo " ${KV_DIR}" 479 qeinfo " ${KV_DIR}"
480 fi
284 481
285 if [ ! -s "${KV_DIR}/Makefile" ] 482 if [ ! -s "${KV_DIR}/Makefile" ]
286 then 483 then
484 if [ -z "${get_version_warning_done}" ]; then
485 get_version_warning_done=1
287 qeerror "Could not find a Makefile in the kernel source directory." 486 qeerror "Could not find a Makefile in the kernel source directory."
288 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"
289 die "Makefile not found in ${KV_DIR}"
290 fi 488 fi
291 489 return 1
490 fi
491
292 # OK so now we know our sources directory, but they might be using 492 # OK so now we know our sources directory, but they might be using
293 # KBUILD_OUTPUT, and we need this for .config and localversions-* 493 # KBUILD_OUTPUT, and we need this for .config and localversions-*
294 # so we better find it eh? 494 # so we better find it eh?
295 # do we pass KBUILD_OUTPUT on the CLI? 495 # do we pass KBUILD_OUTPUT on the CLI?
296 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
497
498 # keep track of it
499 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
297 500
501 # Decide the function used to extract makefile variables.
502 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
503
298 # 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
299 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 505 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
300 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 506 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
301 507
302 # 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
303 # directory name to find version information as this seems insane. 509 # directory name to find version information as this seems insane.
304 # so we parse ${KV_DIR}/Makefile 510 # so we parse ${KERNEL_MAKEFILE}
305 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 511 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
306 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 512 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
307 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 513 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
308 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 514 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
309 515
310 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 516 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
311 then 517 then
518 if [ -z "${get_version_warning_done}" ]; then
519 get_version_warning_done=1
312 qeerror "Could not detect kernel version." 520 qeerror "Could not detect kernel version."
313 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."
314 die "Could not parse version info from ${KV_DIR}/Makefile"
315 fi 522 fi
316 523 return 1
524 fi
525
317 # and in newer versions we can also pull LOCALVERSION if it is set. 526 # and in newer versions we can also pull LOCALVERSION if it is set.
318 # but before we do this, we need to find if we use a different object directory. 527 # but before we do this, we need to find if we use a different object directory.
319 # This *WILL* break if the user is using localversions, but we assume it was 528 # This *WILL* break if the user is using localversions, but we assume it was
320 # caught before this if they are. 529 # caught before this if they are.
321 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
322 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}"
323 531
324 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
325 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
326 if [ -n "${KV_OUT_DIR}" ]; 534 if [ -n "${KV_OUT_DIR}" ];
327 then 535 then
328 qeinfo "Found kernel object directory:" 536 qeinfo "Found kernel object directory:"
329 qeinfo " ${KV_OUT_DIR}" 537 qeinfo " ${KV_OUT_DIR}"
330 538
331 KV_LOCAL="$(cat ${KV_OUT_DIR}/localversion* 2>/dev/null)" 539 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
332 fi 540 fi
333 # and if we STILL haven't got it, then we better just set it to KV_DIR 541 # and if we STILL have not got it, then we better just set it to KV_DIR
334 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 542 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
335 543
336 KV_LOCAL="${KV_LOCAL}$(cat ${KV_DIR}/localversion* 2>/dev/null)" 544 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
545 if linux_config_src_exists; then
337 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 546 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
338 KV_LOCAL="${KV_LOCAL//\"/}" 547 KV_LOCAL="${KV_LOCAL//\"/}"
339 548
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 ${KV_DIR})"
553 fi
554
340 # And we should set KV_FULL to the full expanded version 555 # And we should set KV_FULL to the full expanded version
341 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 556 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
342 557
343 qeinfo "Found sources for kernel version:" 558 qeinfo "Found sources for kernel version:"
344 qeinfo " ${KV_FULL}" 559 qeinfo " ${KV_FULL}"
345
346 if [ ! -s "${KV_OUT_DIR}/.config" ]
347 then
348 qeerror "Could not find a usable .config in the kernel source directory."
349 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
350 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
351 qeerror "it points to the necessary object directory so that it might find .config."
352 die ".config not found in ${KV_OUT_DIR}"
353 fi
354}
355 560
561 return 0
562}
356 563
564# @FUNCTION: get_running_version
565# @DESCRIPTION:
566# It gets the version of the current running kernel and the result is the same as get_version() if the
567# function can find the sources.
568get_running_version() {
569 KV_FULL=$(uname -r)
570
571 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
572 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
573 unset KV_FULL
574 get_version
575 return $?
576 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
577 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
578 unset KV_FULL
579 get_version
580 return $?
581 else
582 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
583 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
584 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
585 KV_PATCH=${KV_PATCH//-*}
586 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
587 && KV_EXTRA="-${KV_FULL#*-}"
588 fi
589 return 0
590}
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 [[ $? -ne 0 ]]; then
602 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
603 get_running_version
604 fi
605}
357 606
358 607
359# ebuild check functions 608# ebuild check functions
360# --------------------------------------- 609# ---------------------------------------
361 610
611# @FUNCTION: check_kernel_built
612# @DESCRIPTION:
613# This function verifies that the current kernel sources have been already prepared otherwise it dies.
362check_kernel_built() { 614check_kernel_built() {
363 # if we haven't determined the version yet, we need too. 615 # if we haven't determined the version yet, we need to
616 require_configured_kernel
364 get_version; 617 get_version
365 618
366 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 619 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
367 then 620 then
368 eerror "These sources have not yet been prepared." 621 eerror "These sources have not yet been prepared."
369 eerror "We cannot build against an unprepared tree." 622 eerror "We cannot build against an unprepared tree."
370 eerror "To resolve this, please type the following:" 623 eerror "To resolve this, please type the following:"
376 eerror "Then please try merging this module again." 629 eerror "Then please try merging this module again."
377 die "Kernel sources need compiling first" 630 die "Kernel sources need compiling first"
378 fi 631 fi
379} 632}
380 633
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.
381check_modules_supported() { 637check_modules_supported() {
382 # 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
383 get_version; 640 get_version
384 641
385 if ! linux_chkconfig_builtin "MODULES" 642 if ! linux_chkconfig_builtin "MODULES"
386 then 643 then
387 eerror "These sources do not support loading external modules." 644 eerror "These sources do not support loading external modules."
388 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\""
389 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."
390 die "No support for external modules in ${KV_FULL} config" 647 die "No support for external modules in ${KV_FULL} config"
391 fi 648 fi
392} 649}
393 650
651# @FUNCTION: check_extra_config
652# @DESCRIPTION:
653# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
654# the prefix ~ is not used) doesn't satisfy the directive.
394check_extra_config() { 655check_extra_config() {
395 local config negate error local_error i n temp_config 656 local config negate die error reworkmodulenames
657 local soft_errors_count=0 hard_errors_count=0 config_required=0
658 # store the value of the QA check, because otherwise we won't catch usages
659 # after if check_extra_config is called AND other direct calls are done
660 # later.
661 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
396 662
397 # if we haven't determined the version yet, we need too. 663 # if we haven't determined the version yet, we need to
398 get_version; 664 linux-info_get_any_version
399 665
400 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 "~".
401 for config in ${CONFIG_CHECK} 668 for config in ${CONFIG_CHECK}
402 do 669 do
403 negate="${config:0:1}" 670 if [[ "${config:0:1}" != "~" ]]; then
404 if [ "${negate}" == "!" ]; 671 config_required=1
405 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 [[ ${config:0:1} == "~" ]]; then
712 die=0
406 config="${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//:*}"
407 if linux_chkconfig_present ${config} 729 if linux_chkconfig_present ${config}; then
408 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.
409 local_error="${config}_ERROR" 748 local_error="${config}_ERROR"
410 local_error="${!local_error}" 749 local_error="${!local_error}"
411 [ -n "${local_error}" ] && eerror " ${local_error}" || \
412 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
413 error=1
414 fi 750 fi
415 elif [ "${negate}" == "@" ]; 751 if [[ ${die} == 0 && -z "${local_error}" ]]; then
416 then 752 #soft errors can be warnings
417 # we never call this unless we are using MODULE_NAMES
418
419 config="${config:1}"
420 temp_config="${config//*:}"
421 config="${config//:*}"
422 if linux_chkconfig_present ${config}
423 then
424 local_error="${config}_ERROR" 753 local_error="WARNING_${config}"
425 local_error="${!local_error}" 754 local_error="${!local_error}"
426 [ -n "${local_error}" ] && eerror " ${local_error}" || \ 755 if [[ -n "${local_error}" ]] ; then
427 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is." 756 report_func="ewarn"
428 757 fi
429 for i in ${MODULE_NAMES}
430 do
431 n="${i//${temp_config}}"
432 [ -z "${n//(*}" ] && MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
433 done
434 error=0
435 fi 758 fi
436 else 759
437 if ! linux_chkconfig_present ${config} 760 if [[ -z "${local_error}" ]]; then
438 then 761 [[ ${error} == 1 ]] \
439 local_error="${config}_ERROR" 762 && local_error="is not set when it should be." \
763 || local_error="should not be set. But it is."
440 local_error="${!local_error}" 764 local_error="CONFIG_${config}:\t ${local_error}"
441 [ -n "${local_error}" ] && eerror " ${local_error}" || \
442 eerror " CONFIG_${config}:\tshould be set in the kernel configuration, but isn't"
443 error=1
444 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
445 fi 773 fi
446 done 774 done
447 775
448 if [ "${error}" == 1 ] ; 776 if [[ ${hard_errors_count} > 0 ]]; then
449 then
450 eerror "Please check to make sure these options are set correctly." 777 eerror "Please check to make sure these options are set correctly."
778 eerror "Failure to do so may cause unexpected problems."
451 eerror "Once you have satisfied these options, please try merging" 779 eerror "Once you have satisfied these options, please try merging"
452 eerror "this package again." 780 eerror "this package again."
781 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
453 die "Incorrect kernel configuration options" 782 die "Incorrect kernel configuration options"
783 elif [[ ${soft_errors_count} > 0 ]]; then
784 ewarn "Please check to make sure these options are set correctly."
785 ewarn "Failure to do so may cause unexpected problems."
786 else
787 eend 0
454 fi 788 fi
789 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
455} 790}
456 791
457check_zlibinflate() { 792check_zlibinflate() {
458 # 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
459 get_version; 795 get_version
460 796
461 # 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!
462 798
463 # bug #27882 - zlib routines are only linked into the kernel 799 # bug #27882 - zlib routines are only linked into the kernel
464 # if something compiled into the kernel calls them 800 # if something compiled into the kernel calls them
465 # 801 #
466 # 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
467 # 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
468 # is on 804 # is on
469 805
470local INFLATE 806 local INFLATE
471local DEFLATE 807 local DEFLATE
472 808
473 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 809 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
474 810
475 ebegin "checking ZLIB_INFLATE" 811 ebegin "checking ZLIB_INFLATE"
476 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 812 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
477 eend $? 813 eend $?
478 [ "$?" != 0 ] && die 814 [ "$?" != 0 ] && die
479 815
480 ebegin "checking ZLIB_DEFLATE" 816 ebegin "checking ZLIB_DEFLATE"
481 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 817 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
482 eend $? 818 eend $?
483 [ "$?" != 0 ] && die 819 [ "$?" != 0 ] && die
484 820
485
486 local LINENO_START 821 local LINENO_START
487 local LINENO_END 822 local LINENO_END
488 local SYMBOLS 823 local SYMBOLS
489 local x 824 local x
490 825
491 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 826 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
492 LINENO_START="$(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)"
493 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 828 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
494 (( LINENO_END = $LINENO_END - 1 )) 829 (( LINENO_END = $LINENO_END - 1 ))
495 SYMBOLS="$(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;')"
501 # we have a winner! 836 # we have a winner!
502 einfo "${x} ensures zlib is linked into your kernel - excellent" 837 einfo "${x} ensures zlib is linked into your kernel - excellent"
503 return 0 838 return 0
504 fi 839 fi
505 done 840 done
506 841
507 eerror 842 eerror
508 eerror "This kernel module requires ZLIB library support." 843 eerror "This kernel module requires ZLIB library support."
509 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"
510 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"
511 eerror "kernel." 846 eerror "kernel."
525} 860}
526 861
527################################ 862################################
528# Default pkg_setup 863# Default pkg_setup
529# 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
530 865# @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)
531linux-info_pkg_setup() { 869linux-info_pkg_setup() {
532 get_version; 870 linux-info_get_any_version
871
872 if kernel_is 2 4; then
873 if [ "$( gcc-major-version )" -eq "4" ] ; then
874 echo
875 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
876 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
877 echo
878 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
879 ewarn "newer kernel that supports gcc-4."
880 echo
881 ewarn "Also be aware that bugreports about gcc-4 not working"
882 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
883 echo
884 epause 10
885 fi
886 fi
887
533 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 888 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
534} 889}

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