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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2011 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.18 2005/01/15 21:46:00 johnm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.91 2011/12/12 22:01:37 vapier Exp $
4# 4
5# @ECLASS: linux-info.eclass
6# @MAINTAINER:
7# kernel-misc@gentoo.org
8# @AUTHOR:
9# Original author: John Mylchreest <johnm@gentoo.org>
10# @BLURB: eclass used for accessing kernel related information
11# @DESCRIPTION:
5# Description: This eclass is used as a central eclass for accessing kernel 12# This eclass is used as a central eclass for accessing kernel
6# related information for sources already installed. 13# related information for source or binary already installed.
7# It is vital for linux-mod to function correctly, and is split 14# It is vital for linux-mod.eclass to function correctly, and is split
8# out so that any ebuild behaviour "templates" are abstracted out 15# out so that any ebuild behaviour "templates" are abstracted out
9# using additional eclasses. 16# using additional eclasses.
10# 17#
11# Maintainer: John Mylchreest <johnm@gentoo.org> 18# "kernel config" in this file means:
12# Copyright 2004 Gentoo Linux 19# The .config of the currently installed sources is used as the first
13# 20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
14# Please direct your bugs to the current eclass maintainer :)
15 21
16# A Couple of env vars are available to effect usage of this eclass 22# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 23# These are as follows:
18# 24
19# Env Var Option Description 25# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 26# @DESCRIPTION:
21# sources. 27# A string containing the directory of the target kernel sources. The default value is
28# "/usr/src/linux"
29
30# @ECLASS-VARIABLE: CONFIG_CHECK
31# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 32# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 33# proceeding with the install.
34#
35# e.g.: CONFIG_CHECK="MTRR"
36#
24# You can also check that an option doesn't exist by 37# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 38# prepending it with an exclamation mark (!).
39#
26# ie: CONFIG_CHECK="!MTRR" 40# e.g.: CONFIG_CHECK="!MTRR"
27# <CFG>_ERROR <string> The error message to display when the above check 41#
42# To simply warn about a missing option, prepend a '~'.
43# It may be combined with '!'.
44#
45# In general, most checks should be non-fatal. The only time fatal checks should
46# be used is for building kernel modules or cases that a compile will fail
47# without the option.
48#
49# This is to allow usage of binary kernels, and minimal systems without kernel
50# sources.
51
52# @ECLASS-VARIABLE: ERROR_<CFG>
53# @DESCRIPTION:
54# A string containing the error message to display when the check against CONFIG_CHECK
28# fails. <CFG> should reference the appropriate option 55# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
29# as above. ie: MTRR_ERROR="MTRR exists in the .config 56#
30# but shouldn't!!" 57# 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 58
32# the kernel makefile. This contains the directory 59# @ECLASS-VARIABLE: KBUILD_OUTPUT
60# @DESCRIPTION:
61# A string passed on commandline, or set from the kernel makefile. It contains the directory
33# which is to be used as the kernel object directory. 62# which is to be used as the kernel object directory.
34 63
35# There are also a couple of variables which are set by this, and shouldn't be 64# There are also a couple of variables which are set by this, and shouldn't be
36# set by hand. These are as follows: 65# set by hand. These are as follows:
37# 66
38# Env Var Option Description 67# @ECLASS-VARIABLE: KV_FULL
39# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 68# @DESCRIPTION:
40# KV_MAJOR <integer> The kernel major version. ie: 2 69# A read-only variable. It's a string containing the full kernel version. ie: 2.6.9-gentoo-johnm-r1
41# KV_MINOR <integer> The kernel minor version. ie: 6 70
42# KV_PATCH <integer> The kernel patch version. ie: 9 71# @ECLASS-VARIABLE: KV_MAJOR
43# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 72# @DESCRIPTION:
44# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 73# A read-only variable. It's an integer containing the kernel major version. ie: 2
45# KV_DIR <string> The kernel source directory, will be null if 74
75# @ECLASS-VARIABLE: KV_MINOR
76# @DESCRIPTION:
77# A read-only variable. It's an integer containing the kernel minor version. ie: 6
78
79# @ECLASS-VARIABLE: KV_PATCH
80# @DESCRIPTION:
81# A read-only variable. It's an integer containing the kernel patch version. ie: 9
82
83# @ECLASS-VARIABLE: KV_EXTRA
84# @DESCRIPTION:
85# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
86
87# @ECLASS-VARIABLE: KV_LOCAL
88# @DESCRIPTION:
89# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
90
91# @ECLASS-VARIABLE: KV_DIR
92# @DESCRIPTION:
93# A read-only variable. It's a string containing the kernel source directory, will be null if
46# KERNEL_DIR is invalid. 94# 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 95
96# @ECLASS-VARIABLE: KV_OUT_DIR
97# @DESCRIPTION:
98# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
99# KBUILD_OUTPUT is used. This should be used for referencing .config.
51 100
52ECLASS=linux-info 101# And to ensure all the weirdness with crosscompile
53INHERITED="$INHERITED $ECLASS" 102inherit toolchain-funcs versionator
103
54EXPORT_FUNCTIONS pkg_setup 104EXPORT_FUNCTIONS pkg_setup
105
106DEPEND=""
107RDEPEND=""
55 108
56# Overwritable environment Var's 109# Overwritable environment Var's
57# --------------------------------------- 110# ---------------------------------------
58KERNEL_DIR="${KERNEL_DIR:-/usr/src/linux}" 111KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
59 112
60 113
61# Bug fixes 114# Bug fixes
62
63# fix to bug #75034 115# fix to bug #75034
64case ${ARCH} in 116case ${ARCH} in
65 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 117 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
66 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 118 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
67esac 119esac
68 120
69# Pulled from eutils as it might be more useful only being here since 121# @FUNCTION: set_arch_to_kernel
70# very few ebuilds which dont use this eclass will ever ever use these functions 122# @DESCRIPTION:
71set_arch_to_kernel() { 123# Set the env ARCH to match what the kernel expects.
72 export PORTAGE_ARCH="${ARCH}" 124set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
73 case ${ARCH} in 125# @FUNCTION: set_arch_to_portage
74 x86) export ARCH="i386";; 126# @DESCRIPTION:
75 amd64) export ARCH="x86_64";; 127# Set the env ARCH to match what portage expects.
76 hppa) export ARCH="parisc";; 128set_arch_to_portage() { export ARCH=$(tc-arch); }
77 mips) export ARCH="mips";;
78 *) export ARCH="${ARCH}";;
79 esac
80}
81 129
82# set's ARCH back to what portage expects
83set_arch_to_portage() {
84 export ARCH="${PORTAGE_ARCH}"
85}
86
87
88#
89# qeinfo "Message" 130# qeinfo "Message"
90# ------------------- 131# -------------------
91# qeinfo is a queit einfo call when EBUILD_PHASE 132# qeinfo is a quiet einfo call when EBUILD_PHASE
92# should not have visible output. 133# should not have visible output.
93# 134qout() {
94qeinfo() {
95 local outputmsg 135 local outputmsg type
136 type=${1}
137 shift
96 outputmsg="${@}" 138 outputmsg="${@}"
97 case "${EBUILD_PHASE}" in 139 case "${EBUILD_PHASE}" in
98 depend) unset outputmsg;; 140 depend) unset outputmsg;;
99 clean) unset outputmsg;; 141 clean) unset outputmsg;;
100 preinst) unset outputmsg;; 142 preinst) unset outputmsg;;
101 esac 143 esac
102 [ -n "${outputmsg}" ] && einfo "${outputmsg}" 144 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
103} 145}
104 146
105qeerror() { 147qeinfo() { qout einfo "${@}" ; }
106 local outputmsg 148qewarn() { qout ewarn "${@}" ; }
107 outputmsg="${@}" 149qeerror() { qout eerror "${@}" ; }
108 case "${EBUILD_PHASE}" in
109 depend) unset outputmsg;;
110 clean) unset outputmsg;;
111 preinst) unset outputmsg;;
112 esac
113 [ -n "${outputmsg}" ] && einfo "${outputmsg}"
114}
115
116
117 150
118# File Functions 151# File Functions
119# --------------------------------------- 152# ---------------------------------------
120 153
121# getfilevar accepts 2 vars as follows: 154# @FUNCTION: getfilevar
122# getfilevar <VARIABLE> <CONFIGFILE> 155# @USAGE: variable configfile
123 156# @RETURN: the value of the variable
157# @DESCRIPTION:
158# It detects the value of the variable defined in the file configfile. This is
159# done by including the configfile, and printing the variable with Make.
160# It WILL break if your makefile has missing dependencies!
124getfilevar() { 161getfilevar() {
125local ERROR workingdir basefname basedname xarch 162local ERROR basefname basedname myARCH="${ARCH}"
126 ERROR=0 163 ERROR=0
127 164
128 [ -z "${1}" ] && ERROR=1 165 [ -z "${1}" ] && ERROR=1
129 [ ! -f "${2}" ] && ERROR=1 166 [ ! -f "${2}" ] && ERROR=1
130 167
131 if [ "${ERROR}" = 1 ] 168 if [ "${ERROR}" = 1 ]
132 then 169 then
133 ebeep
134 echo -e "\n" 170 echo -e "\n"
135 eerror "getfilevar requires 2 variables, with the second a valid file." 171 eerror "getfilevar requires 2 variables, with the second a valid file."
136 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 172 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
137 else 173 else
138 workingdir=${PWD}
139 basefname=$(basename ${2}) 174 basefname="$(basename ${2})"
140 basedname=$(dirname ${2}) 175 basedname="$(dirname ${2})"
141 xarch=${ARCH}
142 unset ARCH 176 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}
152 177
178 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
179 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
180
181 ARCH=${myARCH}
182 fi
183}
184
185# @FUNCTION: getfilevar_noexec
186# @USAGE: variable configfile
187# @RETURN: the value of the variable
188# @DESCRIPTION:
189# It detects the value of the variable defined in the file configfile.
190# This is done with sed matching an expression only. If the variable is defined,
191# you will run into problems. See getfilevar for those cases.
192getfilevar_noexec() {
193 local ERROR basefname basedname mycat myARCH="${ARCH}"
194 ERROR=0
195 mycat='cat'
196
197 [ -z "${1}" ] && ERROR=1
198 [ ! -f "${2}" ] && ERROR=1
199 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
200
201 if [ "${ERROR}" = 1 ]
202 then
203 echo -e "\n"
204 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
205 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
206 else
207 ${mycat} "${2}" | \
208 sed -n \
209 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
210 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
211 s,[[:space:]]*\$,,g ;
212 p
213 }"
214 fi
215}
216
217# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
218# @INTERNAL
219# @DESCRIPTION:
220# This is only set if one of the linux_config_*exists functions has been called.
221# We use it for a QA warning that the check for a config has not been performed,
222# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
223# config is available at all.
224_LINUX_CONFIG_EXISTS_DONE=
225
226linux_config_qa_check() {
227 local f="$1"
228 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
229 ewarn "QA: You called $f before any linux_config_exists!"
230 ewarn "QA: The return value of $f will NOT guaranteed later!"
231 fi
232}
233
234# @FUNCTION: linux_config_src_exists
235# @RETURN: true or false
236# @DESCRIPTION:
237# It returns true if .config exists in a build directory otherwise false
238linux_config_src_exists() {
239 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "${KV_OUT_DIR}/.config" ]
241}
242
243# @FUNCTION: linux_config_bin_exists
244# @RETURN: true or false
245# @DESCRIPTION:
246# It returns true if .config exists in /proc, otherwise false
247linux_config_bin_exists() {
248 export _LINUX_CONFIG_EXISTS_DONE=1
249 [ -s "/proc/config.gz" ]
250}
251
252# @FUNCTION: linux_config_exists
253# @RETURN: true or false
254# @DESCRIPTION:
255# It returns true if .config exists otherwise false
256#
257# This function MUST be checked before using any of the linux_chkconfig_*
258# functions.
259linux_config_exists() {
260 linux_config_src_exists || linux_config_bin_exists
261}
262
263# @FUNCTION: require_configured_kernel
264# @DESCRIPTION:
265# This function verifies that the current kernel is configured (it checks against the existence of .config)
266# otherwise it dies.
267require_configured_kernel() {
268 if ! linux_config_src_exists; then
269 qeerror "Could not find a usable .config in the kernel source directory."
270 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
271 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
272 qeerror "it points to the necessary object directory so that it might find .config."
273 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
274 fi
275}
276
277# @FUNCTION: linux_chkconfig_present
278# @USAGE: option
279# @RETURN: true or false
280# @DESCRIPTION:
281# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
282# If linux_config_exists returns false, the results of this are UNDEFINED. You
283# MUST call linux_config_exists first.
153linux_chkconfig_present() { 284linux_chkconfig_present() {
285 linux_config_qa_check linux_chkconfig_present
154local RESULT 286 local RESULT
287 local config
288 config="${KV_OUT_DIR}/.config"
289 [ ! -f "${config}" ] && config="/proc/config.gz"
155 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 290 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
156 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 291 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
157} 292}
158 293
294# @FUNCTION: linux_chkconfig_module
295# @USAGE: option
296# @RETURN: true or false
297# @DESCRIPTION:
298# It checks that CONFIG_<option>=m is present in the current kernel .config
299# If linux_config_exists returns false, the results of this are UNDEFINED. You
300# MUST call linux_config_exists first.
159linux_chkconfig_module() { 301linux_chkconfig_module() {
302 linux_config_qa_check linux_chkconfig_module
160local RESULT 303 local RESULT
304 local config
305 config="${KV_OUT_DIR}/.config"
306 [ ! -f "${config}" ] && config="/proc/config.gz"
161 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 307 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
162 [ "${RESULT}" = "m" ] && return 0 || return 1 308 [ "${RESULT}" = "m" ] && return 0 || return 1
163} 309}
164 310
311# @FUNCTION: linux_chkconfig_builtin
312# @USAGE: option
313# @RETURN: true or false
314# @DESCRIPTION:
315# It checks that CONFIG_<option>=y is present in the current kernel .config
316# If linux_config_exists returns false, the results of this are UNDEFINED. You
317# MUST call linux_config_exists first.
165linux_chkconfig_builtin() { 318linux_chkconfig_builtin() {
319 linux_config_qa_check linux_chkconfig_builtin
166local RESULT 320 local RESULT
321 local config
322 config="${KV_OUT_DIR}/.config"
323 [ ! -f "${config}" ] && config="/proc/config.gz"
167 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 324 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
168 [ "${RESULT}" = "y" ] && return 0 || return 1 325 [ "${RESULT}" = "y" ] && return 0 || return 1
169} 326}
170 327
328# @FUNCTION: linux_chkconfig_string
329# @USAGE: option
330# @RETURN: CONFIG_<option>
331# @DESCRIPTION:
332# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
333# If linux_config_exists returns false, the results of this are UNDEFINED. You
334# MUST call linux_config_exists first.
171linux_chkconfig_string() { 335linux_chkconfig_string() {
336 linux_config_qa_check linux_chkconfig_string
337 local config
338 config="${KV_OUT_DIR}/.config"
339 [ ! -f "${config}" ] && config="/proc/config.gz"
172 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 340 getfilevar_noexec "CONFIG_${1}" "${config}"
173} 341}
174 342
175# Versioning Functions 343# Versioning Functions
176# --------------------------------------- 344# ---------------------------------------
177 345
178# kernel_is returns true when the version is the same as the passed version 346# @FUNCTION: kernel_is
347# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
348# @RETURN: true or false
349# @DESCRIPTION:
350# It returns true when the current kernel version satisfies the comparison against the passed version.
351# -eq is the default comparison.
179# 352#
353# @CODE
180# For Example where KV = 2.6.9 354# For Example where KV = 2.6.9
181# kernel_is 2 4 returns false 355# kernel_is 2 4 returns false
182# kernel_is 2 returns true 356# kernel_is 2 returns true
183# kernel_is 2 6 returns true 357# kernel_is 2 6 returns true
184# kernel_is 2 6 8 returns false 358# kernel_is 2 6 8 returns false
185# kernel_is 2 6 9 returns true 359# kernel_is 2 6 9 returns true
186# 360# @CODE
187# got the jist yet?
188 361
362# Note: duplicated in kernel-2.eclass
189kernel_is() { 363kernel_is() {
190 # if we haven't determined the version yet, we need too. 364 # if we haven't determined the version yet, we need to.
191 get_version; 365 linux-info_get_any_version
192 366
367 # Now we can continue
193 local RESULT operator test value i len 368 local operator test value
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 case ${1#-} in
216 then 371 lt) operator="-lt"; shift;;
217 value="${value}${1}" 372 gt) operator="-gt"; shift;;
218 test="${test}${KV_MAJOR}" 373 le) operator="-le"; shift;;
219 fi 374 ge) operator="-ge"; shift;;
220 if [ -n "${2}" ] 375 eq) operator="-eq"; shift;;
221 then 376 *) operator="-eq";;
222 len=$[ 3 - ${#2} ] 377 esac
223 for((i=0; i<$len; i++)); do 378 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
224 value="${value}0" 379
380 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
381 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
382 [ ${test} ${operator} ${value} ]
383}
384
385get_localversion() {
386 local lv_list i x
387
388 # ignore files with ~ in it.
389 for i in $(ls ${1}/localversion* 2>/dev/null); do
390 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
225 done 391 done
226 value="${value}${2}"
227 392
228 len=$[ 3 - ${#KV_MINOR} ] 393 for i in ${lv_list}; do
229 for((i=0; i<$len; i++)); do 394 x="${x}$(<${i})"
230 test="${test}0"
231 done 395 done
232 test="${test}${KV_MINOR}" 396 x=${x/ /}
233 fi 397 echo ${x}
234 if [ -n "${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} ${value} ] && return 0 || return 1
250} 398}
251 399
400# Check if the Makefile is valid for direct parsing.
401# Check status results:
402# - PASS, use 'getfilevar' to extract values
403# - FAIL, use 'getfilevar_noexec' to extract values
404# The check may fail if:
405# - make is not present
406# - corruption exists in the kernel makefile
407get_makefile_extract_function() {
408 local a='' b='' mkfunc='getfilevar'
409 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
410 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
411 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
412 echo "${mkfunc}"
413}
414
415# internal variable, so we know to only print the warning once
416get_version_warning_done=
417
418# @FUNCTION: get_version
419# @DESCRIPTION:
420# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
421# (if KV_FULL is already set it does nothing).
422#
423# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
424#
425# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
426# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
427# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
252get_version() { 428get_version() {
253 local kbuild_output 429 local kbuild_output mkfunc tmplocal
254 430
255 # no need to execute this twice assuming KV_FULL is populated. 431 # no need to execute this twice assuming KV_FULL is populated.
256 # we can force by unsetting KV_FULL 432 # we can force by unsetting KV_FULL
257 [ -n "${KV_FULL}" ] && return 433 [ -n "${KV_FULL}" ] && return 0
258 434
259 # if we dont know KV_FULL, then we need too. 435 # 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 436 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
261 unset KV_DIR 437 unset KV_DIR
262 438
263 # KV_DIR will contain the full path to the sources directory we should use 439 # KV_DIR will contain the full path to the sources directory we should use
440 [ -z "${get_version_warning_done}" ] && \
264 qeinfo "Determining the location of the kernel source code" 441 qeinfo "Determining the location of the kernel source code"
265 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 442 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
266 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 443 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
267 444
268 if [ -z "${KV_DIR}" ] 445 if [ -z "${KV_DIR}" ]
269 then 446 then
447 if [ -z "${get_version_warning_done}" ]; then
448 get_version_warning_done=1
270 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 449 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
271 qeinfo "This package requires Linux sources." 450 #qeinfo "This package requires Linux sources."
272 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 451 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
273 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 452 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
274 qeinfo "(or the kernel you wish to build against)." 453 qeinfo "(or the kernel you wish to build against)."
275 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 454 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
276 else 455 else
277 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 456 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
278 fi 457 fi
279 die "Cannot locate Linux sources at ${KERNEL_DIR}"
280 fi 458 fi
459 return 1
460 fi
281 461
462 if [ -z "${get_version_warning_done}" ]; then
282 qeinfo "Found kernel source directory:" 463 qeinfo "Found kernel source directory:"
283 qeinfo " ${KV_DIR}" 464 qeinfo " ${KV_DIR}"
465 fi
284 466
285 if [ ! -s "${KV_DIR}/Makefile" ] 467 if [ ! -s "${KV_DIR}/Makefile" ]
286 then 468 then
469 if [ -z "${get_version_warning_done}" ]; then
470 get_version_warning_done=1
287 qeerror "Could not find a Makefile in the kernel source directory." 471 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" 472 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
289 die "Makefile not found in ${KV_DIR}"
290 fi 473 fi
291 474 return 1
475 fi
476
292 # OK so now we know our sources directory, but they might be using 477 # OK so now we know our sources directory, but they might be using
293 # KBUILD_OUTPUT, and we need this for .config and localversions-* 478 # KBUILD_OUTPUT, and we need this for .config and localversions-*
294 # so we better find it eh? 479 # so we better find it eh?
295 # do we pass KBUILD_OUTPUT on the CLI? 480 # do we pass KBUILD_OUTPUT on the CLI?
296 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 481 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
297 482
483 # keep track of it
484 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
485
486 # Decide the function used to extract makefile variables.
487 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
488
298 # And if we didn't pass it, we can take a nosey in the Makefile 489 # And if we didn't pass it, we can take a nosey in the Makefile
299 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 490 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
300 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 491 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
301 492
302 # And contrary to existing functions I feel we shouldn't trust the 493 # And contrary to existing functions I feel we shouldn't trust the
303 # directory name to find version information as this seems insane. 494 # directory name to find version information as this seems insane.
304 # so we parse ${KV_DIR}/Makefile 495 # so we parse ${KERNEL_MAKEFILE}
305 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 496 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
306 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 497 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
307 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 498 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
308 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 499 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
309 500
310 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 501 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
311 then 502 then
503 if [ -z "${get_version_warning_done}" ]; then
504 get_version_warning_done=1
312 qeerror "Could not detect kernel version." 505 qeerror "Could not detect kernel version."
313 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 506 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
314 die "Could not parse version info from ${KV_DIR}/Makefile"
315 fi 507 fi
316 508 return 1
509 fi
510
317 # and in newer versions we can also pull LOCALVERSION if it is set. 511 # and in newer versions we can also pull LOCALVERSION if it is set.
318 # but before we do this, we need to find if we use a different object directory. 512 # but before we do this, we need to find if we use a different object directory.
319 # This *WILL* break if the user is using localversions, but we assume it was 513 # This *WILL* break if the user is using localversions, but we assume it was
320 # caught before this if they are. 514 # caught before this if they are.
321 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
322 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 515 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
323 516
324 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 517 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
325 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 518 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
326 if [ -n "${KV_OUT_DIR}" ]; 519 if [ -n "${KV_OUT_DIR}" ];
327 then 520 then
328 qeinfo "Found kernel object directory:" 521 qeinfo "Found kernel object directory:"
329 qeinfo " ${KV_OUT_DIR}" 522 qeinfo " ${KV_OUT_DIR}"
330
331 KV_LOCAL="$(cat ${KV_OUT_DIR}/localversion* 2>/dev/null)"
332 fi 523 fi
333 # and if we STILL haven't got it, then we better just set it to KV_DIR 524 # and if we STILL have not got it, then we better just set it to KV_DIR
334 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 525 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
335 526
336 KV_LOCAL="${KV_LOCAL}$(cat ${KV_DIR}/localversion* 2>/dev/null)" 527 # Grab the kernel release from the output directory.
337 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 528 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
338 KV_LOCAL="${KV_LOCAL//\"/}" 529 # this function.
339 530 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
531 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
532 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
533 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
534 else
535 KV_LOCAL=
536 fi
537
538 # KV_LOCAL currently contains the full release; discard the first bits.
539 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
540
541 # If the updated local version was not changed, the tree is not prepared.
542 # Clear out KV_LOCAL in that case.
543 # TODO: this does not detect a change in the localversion part between
544 # kernel.release and the value that would be generated.
545 if [ "$KV_LOCAL" = "$tmplocal" ]; then
546 KV_LOCAL=
547 else
548 KV_LOCAL=$tmplocal
549 fi
550
340 # And we should set KV_FULL to the full expanded version 551 # And we should set KV_FULL to the full expanded version
341 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 552 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
342 553
343 qeinfo "Found sources for kernel version:" 554 qeinfo "Found sources for kernel version:"
344 qeinfo " ${KV_FULL}" 555 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 ${KV_OUT_DIR}"
353 fi
354}
355 556
557 return 0
558}
356 559
560# @FUNCTION: get_running_version
561# @DESCRIPTION:
562# It gets the version of the current running kernel and the result is the same as get_version() if the
563# function can find the sources.
564get_running_version() {
565 KV_FULL=$(uname -r)
566
567 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
568 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
569 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
570 unset KV_FULL
571 get_version
572 return $?
573 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
575 unset KV_FULL
576 get_version
577 return $?
578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
579 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
580 unset KV_FULL
581 get_version
582 return $?
583 else
584 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
585 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
586 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
587 KV_PATCH=${KV_PATCH//-*}
588 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
589 fi
590 return 0
591}
592
593# This next function is named with the eclass prefix to avoid conflicts with
594# some old versionator-like eclass functions.
595
596# @FUNCTION: linux-info_get_any_version
597# @DESCRIPTION:
598# This attempts to find the version of the sources, and otherwise falls back to
599# the version of the running kernel.
600linux-info_get_any_version() {
601 get_version
602 if [[ $? -ne 0 ]]; then
603 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
604 get_running_version
605 fi
606}
357 607
358 608
359# ebuild check functions 609# ebuild check functions
360# --------------------------------------- 610# ---------------------------------------
361 611
612# @FUNCTION: check_kernel_built
613# @DESCRIPTION:
614# This function verifies that the current kernel sources have been already prepared otherwise it dies.
362check_kernel_built() { 615check_kernel_built() {
363 # if we haven't determined the version yet, we need too. 616 # if we haven't determined the version yet, we need to
617 require_configured_kernel
364 get_version; 618 get_version
365 619
366 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 620 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
367 then 621 then
368 eerror "These sources have not yet been prepared." 622 eerror "These sources have not yet been prepared."
369 eerror "We cannot build against an unprepared tree." 623 eerror "We cannot build against an unprepared tree."
370 eerror "To resolve this, please type the following:" 624 eerror "To resolve this, please type the following:"
376 eerror "Then please try merging this module again." 630 eerror "Then please try merging this module again."
377 die "Kernel sources need compiling first" 631 die "Kernel sources need compiling first"
378 fi 632 fi
379} 633}
380 634
635# @FUNCTION: check_modules_supported
636# @DESCRIPTION:
637# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
381check_modules_supported() { 638check_modules_supported() {
382 # if we haven't determined the version yet, we need too. 639 # if we haven't determined the version yet, we need too.
640 require_configured_kernel
383 get_version; 641 get_version
384 642
385 if ! linux_chkconfig_builtin "MODULES" 643 if ! linux_chkconfig_builtin "MODULES"
386 then 644 then
387 eerror "These sources do not support loading external modules." 645 eerror "These sources do not support loading external modules."
388 eerror "to be able to use this module please enable \"Loadable modules support\"" 646 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." 647 eerror "in your kernel, recompile and then try merging this module again."
390 die "No support for external modules in ${KV_FULL} config" 648 die "No support for external modules in ${KV_FULL} config"
391 fi 649 fi
392} 650}
393 651
652# @FUNCTION: check_extra_config
653# @DESCRIPTION:
654# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
655# the prefix ~ is not used) doesn't satisfy the directive.
394check_extra_config() { 656check_extra_config() {
395 local config negate error local_error i n temp_config 657 local config negate die error reworkmodulenames
658 local soft_errors_count=0 hard_errors_count=0 config_required=0
659 # store the value of the QA check, because otherwise we won't catch usages
660 # after if check_extra_config is called AND other direct calls are done
661 # later.
662 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
396 663
397 # if we haven't determined the version yet, we need too. 664 # if we haven't determined the version yet, we need to
398 get_version; 665 linux-info_get_any_version
399 666
400 einfo "Checking for suitable kernel configuration options" 667 # Determine if we really need a .config. The only time when we don't need
668 # one is when all of the CONFIG_CHECK options are prefixed with "~".
401 for config in ${CONFIG_CHECK} 669 for config in ${CONFIG_CHECK}
402 do 670 do
403 negate="${config:0:1}" 671 if [[ "${config:0:1}" != "~" ]]; then
404 if [ "${negate}" == "!" ]; 672 config_required=1
405 then 673 break
674 fi
675 done
676
677 if [[ ${config_required} == 0 ]]; then
678 # In the case where we don't require a .config, we can now bail out
679 # if the user has no .config as there is nothing to do. Otherwise
680 # code later will cause a failure due to missing .config.
681 if ! linux_config_exists; then
682 ewarn "Unable to check for the following kernel config options due"
683 ewarn "to absence of any configured kernel sources or compiled"
684 ewarn "config:"
685 for config in ${CONFIG_CHECK}; do
686 local_error="ERROR_${config#\~}"
687 msg="${!local_error}"
688 if [[ "x${msg}" == "x" ]]; then
689 local_error="WARNING_${config#\~}"
690 msg="${!local_error}"
691 fi
692 ewarn " - ${config#\~}${msg:+ - }${msg}"
693 done
694 ewarn "You're on your own to make sure they are set if needed."
695 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
696 return 0
697 fi
698 else
699 require_configured_kernel
700 fi
701
702 einfo "Checking for suitable kernel configuration options..."
703
704 for config in ${CONFIG_CHECK}
705 do
706 # if we specify any fatal, ensure we honor them
707 die=1
708 error=0
709 negate=0
710 reworkmodulenames=0
711
712 if [[ ${config:0:1} == "~" ]]; then
713 die=0
406 config="${config:1}" 714 config=${config:1}
715 elif [[ ${config:0:1} == "@" ]]; then
716 die=0
717 reworkmodulenames=1
718 config=${config:1}
719 fi
720 if [[ ${config:0:1} == "!" ]]; then
721 negate=1
722 config=${config:1}
723 fi
724
725 if [[ ${negate} == 1 ]]; then
726 linux_chkconfig_present ${config} && error=2
727 elif [[ ${reworkmodulenames} == 1 ]]; then
728 local temp_config="${config//*:}" i n
729 config="${config//:*}"
407 if linux_chkconfig_present ${config} 730 if linux_chkconfig_present ${config}; then
408 then 731 for i in ${MODULE_NAMES}; do
732 n="${i//${temp_config}}"
733 [[ -z ${n//\(*} ]] && \
734 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
735 done
736 error=2
737 fi
738 else
739 linux_chkconfig_present ${config} || error=1
740 fi
741
742 if [[ ${error} > 0 ]]; then
743 local report_func="eerror" local_error
744 local_error="ERROR_${config}"
745 local_error="${!local_error}"
746
747 if [[ -z "${local_error}" ]]; then
748 # using old, deprecated format.
409 local_error="${config}_ERROR" 749 local_error="${config}_ERROR"
410 local_error="${!local_error}" 750 local_error="${!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 751 fi
415 elif [ "${negate}" == "@" ]; 752 if [[ ${die} == 0 && -z "${local_error}" ]]; then
416 then 753 #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" 754 local_error="WARNING_${config}"
425 local_error="${!local_error}" 755 local_error="${!local_error}"
426 [ -n "${local_error}" ] && eerror " ${local_error}" || \ 756 if [[ -n "${local_error}" ]] ; then
427 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is." 757 report_func="ewarn"
428 758 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 759 fi
436 else 760
437 if ! linux_chkconfig_present ${config} 761 if [[ -z "${local_error}" ]]; then
438 then 762 [[ ${error} == 1 ]] \
439 local_error="${config}_ERROR" 763 && local_error="is not set when it should be." \
764 || local_error="should not be set. But it is."
440 local_error="${!local_error}" 765 local_error="CONFIG_${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 766 fi
767 if [[ ${die} == 0 ]]; then
768 ${report_func} " ${local_error}"
769 soft_errors_count=$[soft_errors_count + 1]
770 else
771 ${report_func} " ${local_error}"
772 hard_errors_count=$[hard_errors_count + 1]
773 fi
445 fi 774 fi
446 done 775 done
447 776
448 if [ "${error}" == 1 ] ; 777 if [[ ${hard_errors_count} > 0 ]]; then
449 then
450 eerror "Please check to make sure these options are set correctly." 778 eerror "Please check to make sure these options are set correctly."
779 eerror "Failure to do so may cause unexpected problems."
451 eerror "Once you have satisfied these options, please try merging" 780 eerror "Once you have satisfied these options, please try merging"
452 eerror "this package again." 781 eerror "this package again."
782 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
453 die "Incorrect kernel configuration options" 783 die "Incorrect kernel configuration options"
784 elif [[ ${soft_errors_count} > 0 ]]; then
785 ewarn "Please check to make sure these options are set correctly."
786 ewarn "Failure to do so may cause unexpected problems."
787 else
788 eend 0
454 fi 789 fi
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
455} 791}
456 792
457check_zlibinflate() { 793check_zlibinflate() {
458 # if we haven't determined the version yet, we need too. 794 # if we haven't determined the version yet, we need to
795 require_configured_kernel
459 get_version; 796 get_version
460 797
461 # although I restructured this code - I really really really dont support it! 798 # although I restructured this code - I really really really dont support it!
462 799
463 # bug #27882 - zlib routines are only linked into the kernel 800 # bug #27882 - zlib routines are only linked into the kernel
464 # if something compiled into the kernel calls them 801 # if something compiled into the kernel calls them
465 # 802 #
466 # plus, for the cloop module, it appears that there's no way 803 # 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 804 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
468 # is on 805 # is on
469 806
470local INFLATE 807 local INFLATE
471local DEFLATE 808 local DEFLATE
472 809
473 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 810 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
474 811
475 ebegin "checking ZLIB_INFLATE" 812 ebegin "checking ZLIB_INFLATE"
476 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 813 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
477 eend $? 814 eend $?
478 [ "$?" != 0 ] && die 815 [ "$?" != 0 ] && die
479 816
480 ebegin "checking ZLIB_DEFLATE" 817 ebegin "checking ZLIB_DEFLATE"
481 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 818 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
482 eend $? 819 eend $?
483 [ "$?" != 0 ] && die 820 [ "$?" != 0 ] && die
484 821
485
486 local LINENO_START 822 local LINENO_START
487 local LINENO_END 823 local LINENO_END
488 local SYMBOLS 824 local SYMBOLS
489 local x 825 local x
490 826
491 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 827 LINENO_END="$(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)" 828 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 )) 829 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
494 (( LINENO_END = $LINENO_END - 1 )) 830 (( 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;')" 831 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! 837 # we have a winner!
502 einfo "${x} ensures zlib is linked into your kernel - excellent" 838 einfo "${x} ensures zlib is linked into your kernel - excellent"
503 return 0 839 return 0
504 fi 840 fi
505 done 841 done
506 842
507 eerror 843 eerror
508 eerror "This kernel module requires ZLIB library support." 844 eerror "This kernel module requires ZLIB library support."
509 eerror "You have enabled zlib support in your kernel, but haven't enabled" 845 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" 846 eerror "enabled any option that will ensure that zlib is linked into your"
511 eerror "kernel." 847 eerror "kernel."
525} 861}
526 862
527################################ 863################################
528# Default pkg_setup 864# Default pkg_setup
529# Also used when inheriting linux-mod to force a get_version call 865# Also used when inheriting linux-mod to force a get_version call
530 866# @FUNCTION: linux-info_pkg_setup
867# @DESCRIPTION:
868# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
869# to support the options specified in CONFIG_CHECK (if not null)
531linux-info_pkg_setup() { 870linux-info_pkg_setup() {
532 get_version; 871 linux-info_get_any_version
872
873 if kernel_is 2 4; then
874 if [ "$( gcc-major-version )" -eq "4" ] ; then
875 echo
876 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
877 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
878 echo
879 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
880 ewarn "newer kernel that supports gcc-4."
881 echo
882 ewarn "Also be aware that bugreports about gcc-4 not working"
883 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
884 echo
885 epause 10
886 fi
887 fi
888
533 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 889 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
534} 890}

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