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1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2013 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 1.39 2006/02/08 12:57:52 brix Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.97 2013/02/10 02:21:55 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
20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
13# 21#
14# Please direct your bugs to the current eclass maintainer :) 22# Before using any of the config-handling functions in this eclass, you must
23# ensure that one of the following functions has been called (in order of
24# preference), otherwise you will get bugs like #364041):
25# linux-info_pkg_setup
26# linux-info_get_any_version
27# get_version
28# get_running_version
15 29
16# A Couple of env vars are available to effect usage of this eclass 30# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 31# These are as follows:
18# 32
19# Env Var Option Description 33# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 34# @DESCRIPTION:
21# sources. 35# A string containing the directory of the target kernel sources. The default value is
36# "/usr/src/linux"
37
38# @ECLASS-VARIABLE: CONFIG_CHECK
39# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 40# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 41# proceeding with the install.
42#
43# e.g.: CONFIG_CHECK="MTRR"
44#
24# You can also check that an option doesn't exist by 45# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 46# prepending it with an exclamation mark (!).
47#
26# ie: CONFIG_CHECK="!MTRR" 48# e.g.: CONFIG_CHECK="!MTRR"
49#
27# To simply warn about a missing option, prepend a '~'. 50# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check 51# It may be combined with '!'.
52#
53# In general, most checks should be non-fatal. The only time fatal checks should
54# be used is for building kernel modules or cases that a compile will fail
55# without the option.
56#
57# This is to allow usage of binary kernels, and minimal systems without kernel
58# sources.
59
60# @ECLASS-VARIABLE: ERROR_<CFG>
61# @DESCRIPTION:
62# A string containing the error message to display when the check against CONFIG_CHECK
29# fails. <CFG> should reference the appropriate option 63# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
30# as above. ie: ERROR_MTRR="MTRR exists in the .config 64#
31# but shouldn't!!" 65# e.g.: ERROR_MTRR="MTRR exists in the .config but shouldn't!!"
32# KBUILD_OUTPUT <string> This is passed on commandline, or can be set from 66
33# the kernel makefile. This contains the directory 67# @ECLASS-VARIABLE: KBUILD_OUTPUT
68# @DESCRIPTION:
69# A string passed on commandline, or set from the kernel makefile. It contains the directory
34# which is to be used as the kernel object directory. 70# which is to be used as the kernel object directory.
35 71
36# There are also a couple of variables which are set by this, and shouldn't be 72# There are also a couple of variables which are set by this, and shouldn't be
37# set by hand. These are as follows: 73# set by hand. These are as follows:
38# 74
39# Env Var Option Description 75# @ECLASS-VARIABLE: KV_FULL
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 76# @DESCRIPTION:
41# KV_MAJOR <integer> The kernel major version. ie: 2 77# A read-only variable. It's a string containing the full kernel version. ie: 2.6.9-gentoo-johnm-r1
42# KV_MINOR <integer> The kernel minor version. ie: 6 78
43# KV_PATCH <integer> The kernel patch version. ie: 9 79# @ECLASS-VARIABLE: KV_MAJOR
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 80# @DESCRIPTION:
45# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 81# A read-only variable. It's an integer containing the kernel major version. ie: 2
46# KV_DIR <string> The kernel source directory, will be null if 82
83# @ECLASS-VARIABLE: KV_MINOR
84# @DESCRIPTION:
85# A read-only variable. It's an integer containing the kernel minor version. ie: 6
86
87# @ECLASS-VARIABLE: KV_PATCH
88# @DESCRIPTION:
89# A read-only variable. It's an integer containing the kernel patch version. ie: 9
90
91# @ECLASS-VARIABLE: KV_EXTRA
92# @DESCRIPTION:
93# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
94
95# @ECLASS-VARIABLE: KV_LOCAL
96# @DESCRIPTION:
97# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
98
99# @ECLASS-VARIABLE: KV_DIR
100# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel source directory, will be null if
47# KERNEL_DIR is invalid. 102# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 103
49# koutput is used. This should be used for referencing 104# @ECLASS-VARIABLE: KV_OUT_DIR
50# .config. 105# @DESCRIPTION:
106# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
107# KBUILD_OUTPUT is used. This should be used for referencing .config.
51 108
52# And to ensure all the weirdness with crosscompile 109# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator 110inherit toolchain-funcs versionator
54 111
55EXPORT_FUNCTIONS pkg_setup 112EXPORT_FUNCTIONS pkg_setup
56 113
57DEPEND="virtual/linux-sources" 114DEPEND=""
58RDEPEND="" 115RDEPEND=""
59 116
60# Overwritable environment Var's 117# Overwritable environment Var's
61# --------------------------------------- 118# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
67case ${ARCH} in 124case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 125 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 126 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac 127esac
71 128
72# These are legacy wrappers for toolchain-funcs. 129# @FUNCTION: set_arch_to_kernel
73# I dont like them here, but oh well. 130# @DESCRIPTION:
131# Set the env ARCH to match what the kernel expects.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 132set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
133# @FUNCTION: set_arch_to_portage
134# @DESCRIPTION:
135# Set the env ARCH to match what portage expects.
75set_arch_to_portage() { export ARCH="$(tc-arch)"; } 136set_arch_to_portage() { export ARCH=$(tc-arch); }
76 137
77# qeinfo "Message" 138# qeinfo "Message"
78# ------------------- 139# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE 140# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output. 141# should not have visible output.
90 esac 151 esac
91 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
92} 153}
93 154
94qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
95qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
96 158
97# File Functions 159# File Functions
98# --------------------------------------- 160# ---------------------------------------
99 161
100# getfilevar accepts 2 vars as follows: 162# @FUNCTION: getfilevar
101# getfilevar <VARIABLE> <CONFIGFILE> 163# @USAGE: variable configfile
102 164# @RETURN: the value of the variable
165# @DESCRIPTION:
166# It detects the value of the variable defined in the file configfile. This is
167# done by including the configfile, and printing the variable with Make.
168# It WILL break if your makefile has missing dependencies!
103getfilevar() { 169getfilevar() {
104local ERROR workingdir basefname basedname myARCH="${ARCH}" 170 local ERROR basefname basedname myARCH="${ARCH}"
105 ERROR=0 171 ERROR=0
106 172
107 [ -z "${1}" ] && ERROR=1 173 [ -z "${1}" ] && ERROR=1
108 [ ! -f "${2}" ] && ERROR=1 174 [ ! -f "${2}" ] && ERROR=1
109 175
111 then 177 then
112 echo -e "\n" 178 echo -e "\n"
113 eerror "getfilevar requires 2 variables, with the second a valid file." 179 eerror "getfilevar requires 2 variables, with the second a valid file."
114 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 180 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
115 else 181 else
116 workingdir="${PWD}"
117 basefname="$(basename ${2})" 182 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 183 basedname="$(dirname ${2})"
119 unset ARCH 184 unset ARCH
120 185
121 cd "${basedname}" 186 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 187 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
123 make ${BUILD_FIXES} -s -f - e 2>/dev/null
124 cd "${workingdir}"
125 188
126 ARCH=${myARCH} 189 ARCH=${myARCH}
127 fi 190 fi
128} 191}
129 192
193# @FUNCTION: getfilevar_noexec
194# @USAGE: variable configfile
195# @RETURN: the value of the variable
196# @DESCRIPTION:
197# It detects the value of the variable defined in the file configfile.
198# This is done with sed matching an expression only. If the variable is defined,
199# you will run into problems. See getfilevar for those cases.
200getfilevar_noexec() {
201 local ERROR basefname basedname mycat myARCH="${ARCH}"
202 ERROR=0
203 mycat='cat'
204
205 [ -z "${1}" ] && ERROR=1
206 [ ! -f "${2}" ] && ERROR=1
207 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
208
209 if [ "${ERROR}" = 1 ]
210 then
211 echo -e "\n"
212 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
213 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
214 else
215 ${mycat} "${2}" | \
216 sed -n \
217 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
218 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
219 s,[[:space:]]*\$,,g ;
220 p
221 }"
222 fi
223}
224
225# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
226# @INTERNAL
227# @DESCRIPTION:
228# This is only set if one of the linux_config_*exists functions has been called.
229# We use it for a QA warning that the check for a config has not been performed,
230# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
231# config is available at all.
232_LINUX_CONFIG_EXISTS_DONE=
233
234linux_config_qa_check() {
235 local f="$1"
236 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
237 ewarn "QA: You called $f before any linux_config_exists!"
238 ewarn "QA: The return value of $f will NOT guaranteed later!"
239 fi
240}
241
242# @FUNCTION: linux_config_src_exists
243# @RETURN: true or false
244# @DESCRIPTION:
245# It returns true if .config exists in a build directory otherwise false
246linux_config_src_exists() {
247 export _LINUX_CONFIG_EXISTS_DONE=1
248 [[ -n ${KV_OUT_DIR} && -s ${KV_OUT_DIR}/.config ]]
249}
250
251# @FUNCTION: linux_config_bin_exists
252# @RETURN: true or false
253# @DESCRIPTION:
254# It returns true if .config exists in /proc, otherwise false
255linux_config_bin_exists() {
256 export _LINUX_CONFIG_EXISTS_DONE=1
257 [[ -s /proc/config.gz ]]
258}
259
260# @FUNCTION: linux_config_exists
261# @RETURN: true or false
262# @DESCRIPTION:
263# It returns true if .config exists otherwise false
264#
265# This function MUST be checked before using any of the linux_chkconfig_*
266# functions.
267linux_config_exists() {
268 linux_config_src_exists || linux_config_bin_exists
269}
270
271# @FUNCTION: linux_config_path
272# @DESCRIPTION:
273# Echo the name of the config file to use. If none are found,
274# then return false.
275linux_config_path() {
276 if linux_config_src_exists; then
277 echo "${KV_OUT_DIR}/.config"
278 elif linux_config_bin_exists; then
279 echo "/proc/config.gz"
280 else
281 return 1
282 fi
283}
284
285# @FUNCTION: require_configured_kernel
286# @DESCRIPTION:
287# This function verifies that the current kernel is configured (it checks against the existence of .config)
288# otherwise it dies.
289require_configured_kernel() {
290 if ! linux_config_src_exists; then
291 qeerror "Could not find a usable .config in the kernel source directory."
292 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
293 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
294 qeerror "it points to the necessary object directory so that it might find .config."
295 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
296 fi
297}
298
299# @FUNCTION: linux_chkconfig_present
300# @USAGE: option
301# @RETURN: true or false
302# @DESCRIPTION:
303# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
304# If linux_config_exists returns false, the results of this are UNDEFINED. You
305# MUST call linux_config_exists first.
130linux_chkconfig_present() { 306linux_chkconfig_present() {
131local RESULT 307 linux_config_qa_check linux_chkconfig_present
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 308 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == [my] ]]
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 309}
135 310
311# @FUNCTION: linux_chkconfig_module
312# @USAGE: option
313# @RETURN: true or false
314# @DESCRIPTION:
315# It checks that CONFIG_<option>=m 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.
136linux_chkconfig_module() { 318linux_chkconfig_module() {
137local RESULT 319 linux_config_qa_check linux_chkconfig_module
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 320 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == m ]]
139 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 321}
141 322
323# @FUNCTION: linux_chkconfig_builtin
324# @USAGE: option
325# @RETURN: true or false
326# @DESCRIPTION:
327# It checks that CONFIG_<option>=y is present in the current kernel .config
328# If linux_config_exists returns false, the results of this are UNDEFINED. You
329# MUST call linux_config_exists first.
142linux_chkconfig_builtin() { 330linux_chkconfig_builtin() {
143local RESULT 331 linux_config_qa_check linux_chkconfig_builtin
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 332 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == y ]]
145 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 333}
147 334
335# @FUNCTION: linux_chkconfig_string
336# @USAGE: option
337# @RETURN: CONFIG_<option>
338# @DESCRIPTION:
339# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
340# If linux_config_exists returns false, the results of this are UNDEFINED. You
341# MUST call linux_config_exists first.
148linux_chkconfig_string() { 342linux_chkconfig_string() {
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 343 linux_config_qa_check linux_chkconfig_string
344 getfilevar_noexec "CONFIG_$1" "$(linux_config_path)"
150} 345}
151 346
152# Versioning Functions 347# Versioning Functions
153# --------------------------------------- 348# ---------------------------------------
154 349
155# kernel_is returns true when the version is the same as the passed version 350# @FUNCTION: kernel_is
351# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
352# @RETURN: true or false
353# @DESCRIPTION:
354# It returns true when the current kernel version satisfies the comparison against the passed version.
355# -eq is the default comparison.
156# 356#
357# @CODE
157# For Example where KV = 2.6.9 358# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 359# kernel_is 2 4 returns false
159# kernel_is 2 returns true 360# kernel_is 2 returns true
160# kernel_is 2 6 returns true 361# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 362# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 363# kernel_is 2 6 9 returns true
163# 364# @CODE
164# got the jist yet?
165 365
366# Note: duplicated in kernel-2.eclass
166kernel_is() { 367kernel_is() {
167 # if we haven't determined the version yet, we need too. 368 # if we haven't determined the version yet, we need to.
168 get_version; 369 linux-info_get_any_version
370
371 # Now we can continue
169 local operator test value x=0 y=0 z=0 372 local operator test value
170 373
171 case ${1} in 374 case ${1#-} in
172 lt) operator="-lt"; shift;; 375 lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 376 gt) operator="-gt"; shift;;
174 le) operator="-le"; shift;; 377 le) operator="-le"; shift;;
175 ge) operator="-ge"; shift;; 378 ge) operator="-ge"; shift;;
176 eq) operator="-eq"; shift;; 379 eq) operator="-eq"; shift;;
177 *) operator="-eq";; 380 *) operator="-eq";;
178 esac 381 esac
179
180 for x in ${@}; do
181 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
182 value="${value}${x}"
183 z=$((${z} + 1))
184
185 case ${z} in
186 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
187 test="${test}${KV_MAJOR}";;
188 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
189 test="${test}${KV_MINOR}";;
190 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
191 test="${test}${KV_PATCH}";;
192 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 382 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
193 esac
194 done
195 383
196 [ ${test} ${operator} ${value} ] && return 0 || return 1 384 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
385 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
386 [ ${test} ${operator} ${value} ]
197} 387}
198 388
199get_localversion() { 389get_localversion() {
200 local lv_list i x 390 local lv_list i x
201 391
209 done 399 done
210 x=${x/ /} 400 x=${x/ /}
211 echo ${x} 401 echo ${x}
212} 402}
213 403
404# Check if the Makefile is valid for direct parsing.
405# Check status results:
406# - PASS, use 'getfilevar' to extract values
407# - FAIL, use 'getfilevar_noexec' to extract values
408# The check may fail if:
409# - make is not present
410# - corruption exists in the kernel makefile
411get_makefile_extract_function() {
412 local a='' b='' mkfunc='getfilevar'
413 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
414 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
415 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
416 echo "${mkfunc}"
417}
418
419# internal variable, so we know to only print the warning once
420get_version_warning_done=
421
422# @FUNCTION: get_version
423# @DESCRIPTION:
424# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
425# (if KV_FULL is already set it does nothing).
426#
427# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
428#
429# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
430# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
431# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 432get_version() {
215 local kbuild_output 433 local kbuild_output mkfunc tmplocal
216 434
217 # no need to execute this twice assuming KV_FULL is populated. 435 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 436 # we can force by unsetting KV_FULL
219 [ -n "${KV_FULL}" ] && return 0 437 [ -n "${KV_FULL}" ] && return 0
220 438
221 # if we dont know KV_FULL, then we need too. 439 # if we dont know KV_FULL, then we need too.
222 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 440 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
223 unset KV_DIR 441 unset KV_DIR
224 442
225 # KV_DIR will contain the full path to the sources directory we should use 443 # KV_DIR will contain the full path to the sources directory we should use
444 [ -z "${get_version_warning_done}" ] && \
226 qeinfo "Determining the location of the kernel source code" 445 qeinfo "Determining the location of the kernel source code"
227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 446 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 447 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
229 448
230 if [ -z "${KV_DIR}" ] 449 if [ -z "${KV_DIR}" ]
231 then 450 then
451 if [ -z "${get_version_warning_done}" ]; then
452 get_version_warning_done=1
232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 453 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
233 qeinfo "This package requires Linux sources." 454 #qeinfo "This package requires Linux sources."
234 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 455 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
235 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 456 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)." 457 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 458 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else 459 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 460 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
461 fi
240 fi 462 fi
241 return 1 463 return 1
242 fi 464 fi
243 465
466 if [ -z "${get_version_warning_done}" ]; then
244 qeinfo "Found kernel source directory:" 467 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}" 468 qeinfo " ${KV_DIR}"
469 fi
246 470
247 if [ ! -s "${KV_DIR}/Makefile" ] 471 if [ ! -s "${KV_DIR}/Makefile" ]
248 then 472 then
473 if [ -z "${get_version_warning_done}" ]; then
474 get_version_warning_done=1
249 qeerror "Could not find a Makefile in the kernel source directory." 475 qeerror "Could not find a Makefile in the kernel source directory."
250 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 476 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
477 fi
251 return 1 478 return 1
252 fi 479 fi
253 480
254 # OK so now we know our sources directory, but they might be using 481 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-* 482 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh? 483 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI? 484 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 485 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
259 486
487 # keep track of it
488 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
489
490 # Decide the function used to extract makefile variables.
491 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
492
260 # And if we didn't pass it, we can take a nosey in the Makefile 493 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 494 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 495 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263 496
264 # And contrary to existing functions I feel we shouldn't trust the 497 # And contrary to existing functions I feel we shouldn't trust the
265 # directory name to find version information as this seems insane. 498 # directory name to find version information as this seems insane.
266 # so we parse ${KV_DIR}/Makefile 499 # so we parse ${KERNEL_MAKEFILE}
267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 500 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 501 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 502 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 503 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
271 504
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 505 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then 506 then
507 if [ -z "${get_version_warning_done}" ]; then
508 get_version_warning_done=1
274 qeerror "Could not detect kernel version." 509 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 510 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
511 fi
276 return 1 512 return 1
277 fi 513 fi
278 514
279 # and in newer versions we can also pull LOCALVERSION if it is set. 515 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 516 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 517 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 518 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 519 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 520
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 521 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 522 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 523 if [ -n "${KV_OUT_DIR}" ];
289 then 524 then
290 qeinfo "Found kernel object directory:" 525 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 526 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 527 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 528 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 529 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 530
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 531 # Grab the kernel release from the output directory.
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 532 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
300 KV_LOCAL="${KV_LOCAL//\"/}" 533 # this function.
534 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
535 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
536 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
537 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
538 else
539 KV_LOCAL=
540 fi
541
542 # KV_LOCAL currently contains the full release; discard the first bits.
543 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
544
545 # If the updated local version was not changed, the tree is not prepared.
546 # Clear out KV_LOCAL in that case.
547 # TODO: this does not detect a change in the localversion part between
548 # kernel.release and the value that would be generated.
549 if [ "$KV_LOCAL" = "$tmplocal" ]; then
550 KV_LOCAL=
551 else
552 KV_LOCAL=$tmplocal
553 fi
301 554
302 # And we should set KV_FULL to the full expanded version 555 # And we should set KV_FULL to the full expanded version
303 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}"
304 557
305 qeinfo "Found sources for kernel version:" 558 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 559 qeinfo " ${KV_FULL}"
307 560
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 561 return 0
318} 562}
319 563
564# @FUNCTION: get_running_version
565# @DESCRIPTION:
566# It gets the version of the current running kernel and the result is the same as get_version() if the
567# function can find the sources.
320get_running_version() { 568get_running_version() {
321 KV_FULL=$(uname -r) 569 KV_FULL=$(uname -r)
322 570
571 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
572 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
573 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
574 unset KV_FULL
575 get_version
576 return $?
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 577 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 578 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL 579 unset KV_FULL
326 get_version 580 get_version
327 return $? 581 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 582 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
329 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 583 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
330 unset KV_FULL 584 unset KV_FULL
331 get_version 585 get_version
332 return $? 586 return $?
333 else 587 else
588 # This handles a variety of weird kernel versions. Make sure to update
589 # tests/linux-info:get_running_version.sh if you want to change this.
590 local kv_full=${KV_FULL//[-+_]*}
334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 591 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 592 KV_MINOR=$(get_version_component_range 2 ${kv_full})
336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 593 KV_PATCH=$(get_version_component_range 3 ${kv_full})
337 KV_PATCH=${KV_PATCH//-*} 594 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 595 : ${KV_PATCH:=0}
339 && KV_EXTRA="-${KV_FULL#*-}"
340 fi 596 fi
341 return 0 597 return 0
598}
599
600# This next function is named with the eclass prefix to avoid conflicts with
601# some old versionator-like eclass functions.
602
603# @FUNCTION: linux-info_get_any_version
604# @DESCRIPTION:
605# This attempts to find the version of the sources, and otherwise falls back to
606# the version of the running kernel.
607linux-info_get_any_version() {
608 get_version
609 if [[ $? -ne 0 ]]; then
610 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
611 get_running_version
612 fi
342} 613}
343 614
344 615
345# ebuild check functions 616# ebuild check functions
346# --------------------------------------- 617# ---------------------------------------
347 618
619# @FUNCTION: check_kernel_built
620# @DESCRIPTION:
621# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 622check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 623 # if we haven't determined the version yet, we need to
624 require_configured_kernel
350 get_version; 625 get_version
351 626
627 local versionh_path
628 if kernel_is -ge 3 7; then
629 versionh_path="include/generated/uapi/linux/version.h"
630 else
631 versionh_path="include/linux/version.h"
632 fi
633
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 634 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
353 then 635 then
354 eerror "These sources have not yet been prepared." 636 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 637 eerror "We cannot build against an unprepared tree."
356 eerror "To resolve this, please type the following:" 638 eerror "To resolve this, please type the following:"
357 eerror 639 eerror
362 eerror "Then please try merging this module again." 644 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 645 die "Kernel sources need compiling first"
364 fi 646 fi
365} 647}
366 648
649# @FUNCTION: check_modules_supported
650# @DESCRIPTION:
651# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 652check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 653 # if we haven't determined the version yet, we need too.
654 require_configured_kernel
369 get_version; 655 get_version
370 656
371 if ! linux_chkconfig_builtin "MODULES" 657 if ! linux_chkconfig_builtin "MODULES"; then
372 then
373 eerror "These sources do not support loading external modules." 658 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 659 eerror "to be able to use this module please enable \"Loadable modules support\""
375 eerror "in your kernel, recompile and then try merging this module again." 660 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 661 die "No support for external modules in ${KV_FULL} config"
377 fi 662 fi
378} 663}
379 664
665# @FUNCTION: check_extra_config
666# @DESCRIPTION:
667# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
668# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 669check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 670 local config negate die error reworkmodulenames
671 local soft_errors_count=0 hard_errors_count=0 config_required=0
672 # store the value of the QA check, because otherwise we won't catch usages
673 # after if check_extra_config is called AND other direct calls are done
674 # later.
675 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
383 676
384 # if we haven't determined the version yet, we need too. 677 # if we haven't determined the version yet, we need to
385 get_version; 678 linux-info_get_any_version
386 679
680 # Determine if we really need a .config. The only time when we don't need
681 # one is when all of the CONFIG_CHECK options are prefixed with "~".
682 for config in ${CONFIG_CHECK}; do
683 if [[ "${config:0:1}" != "~" ]]; then
684 config_required=1
685 break
686 fi
687 done
688
689 if [[ ${config_required} == 0 ]]; then
690 # In the case where we don't require a .config, we can now bail out
691 # if the user has no .config as there is nothing to do. Otherwise
692 # code later will cause a failure due to missing .config.
693 if ! linux_config_exists; then
694 ewarn "Unable to check for the following kernel config options due"
695 ewarn "to absence of any configured kernel sources or compiled"
696 ewarn "config:"
697 for config in ${CONFIG_CHECK}; do
698 local_error="ERROR_${config#\~}"
699 msg="${!local_error}"
700 if [[ "x${msg}" == "x" ]]; then
701 local_error="WARNING_${config#\~}"
702 msg="${!local_error}"
703 fi
704 ewarn " - ${config#\~}${msg:+ - }${msg}"
705 done
706 ewarn "You're on your own to make sure they are set if needed."
707 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
708 return 0
709 fi
710 else
711 require_configured_kernel
712 fi
713
387 einfo "Checking for suitable kernel configuration options:" 714 einfo "Checking for suitable kernel configuration options..."
715
388 for config in ${CONFIG_CHECK} 716 for config in ${CONFIG_CHECK}
389 do 717 do
390 # if we specify any fatal, ensure we honor them 718 # if we specify any fatal, ensure we honor them
391 die=1 719 die=1
392 error=0 720 error=0
393 negate=0 721 negate=0
394 reworkmodulenames=0 722 reworkmodulenames=0
395 723
396 if [[ -z ${config//\!*} ]]; then 724 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 725 die=0
398 config=${config:1} 726 config=${config:1}
399 fi 727 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 728 die=0
402 reworkmodulenames=1 729 reworkmodulenames=1
403 config=${config:1} 730 config=${config:1}
404 fi 731 fi
405 if [[ -z ${config/\~*} ]]; then 732 if [[ ${config:0:1} == "!" ]]; then
406 die=0 733 negate=1
407 config=${config:1} 734 config=${config:1}
408 fi 735 fi
409 736
410 if [[ ${negate} == 1 ]]; then 737 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 738 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 739 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 740 local temp_config="${config//*:}" i n
414 config="${config//:*}" 741 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 742 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 743 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 744 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 745 [[ -z ${n//\(*} ]] && \
422 fi 749 fi
423 else 750 else
424 linux_chkconfig_present ${config} || error=1 751 linux_chkconfig_present ${config} || error=1
425 fi 752 fi
426 753
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 754 if [[ ${error} > 0 ]]; then
755 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 756 local_error="ERROR_${config}"
757 local_error="${!local_error}"
758
759 if [[ -z "${local_error}" ]]; then
760 # using old, deprecated format.
761 local_error="${config}_ERROR"
433 local_error="${!local_error}" 762 local_error="${!local_error}"
434 763 fi
435 if [[ -z "${local_error}" ]]; then 764 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 765 #soft errors can be warnings
437 local_error="${config}_ERROR" 766 local_error="WARNING_${config}"
438 local_error="${!local_error}" 767 local_error="${!local_error}"
768 if [[ -n "${local_error}" ]] ; then
769 report_func="ewarn"
439 fi 770 fi
440
441 if [[ -z "${local_error}" ]]; then
442 [[ ${error} == 1 ]] \
443 && local_error="is not set when it should be." \
444 || local_error="should not be set. But it is."
445 local_error="CONFIG_${config}:\t ${local_error}"
446 fi
447 eerror " ${local_error}"
448 fi 771 fi
772
773 if [[ -z "${local_error}" ]]; then
774 [[ ${error} == 1 ]] \
775 && local_error="is not set when it should be." \
776 || local_error="should not be set. But it is."
777 local_error="CONFIG_${config}:\t ${local_error}"
778 fi
779 if [[ ${die} == 0 ]]; then
780 ${report_func} " ${local_error}"
781 soft_errors_count=$[soft_errors_count + 1]
782 else
783 ${report_func} " ${local_error}"
784 hard_errors_count=$[hard_errors_count + 1]
785 fi
449 fi 786 fi
450 done 787 done
451 788
452 if [[ ${error} > 0 ]]; then 789 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 790 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 791 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 792 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 793 eerror "this package again."
794 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
458 die "Incorrect kernel configuration options" 795 die "Incorrect kernel configuration options"
796 elif [[ ${soft_errors_count} > 0 ]]; then
797 ewarn "Please check to make sure these options are set correctly."
798 ewarn "Failure to do so may cause unexpected problems."
799 else
800 eend 0
459 fi 801 fi
460 fi 802 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
461} 803}
462 804
463check_zlibinflate() { 805check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 806 # if we haven't determined the version yet, we need to
807 require_configured_kernel
465 get_version; 808 get_version
466 809
467 # although I restructured this code - I really really really dont support it! 810 # although I restructured this code - I really really really dont support it!
468 811
469 # bug #27882 - zlib routines are only linked into the kernel 812 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 813 # if something compiled into the kernel calls them
477 local DEFLATE 820 local DEFLATE
478 821
479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 822 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
480 823
481 ebegin "checking ZLIB_INFLATE" 824 ebegin "checking ZLIB_INFLATE"
482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 825 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
483 eend $? 826 eend $?
484 [ "$?" != 0 ] && die 827 [ "$?" != 0 ] && die
485 828
486 ebegin "checking ZLIB_DEFLATE" 829 ebegin "checking ZLIB_DEFLATE"
487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 830 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
488 eend $? 831 eend $?
489 [ "$?" != 0 ] && die 832 [ "$?" != 0 ] && die
490 833
491 local LINENO_START 834 local LINENO_START
492 local LINENO_END 835 local LINENO_END
530} 873}
531 874
532################################ 875################################
533# Default pkg_setup 876# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 877# Also used when inheriting linux-mod to force a get_version call
535 878# @FUNCTION: linux-info_pkg_setup
879# @DESCRIPTION:
880# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
881# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 882linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 883 linux-info_get_any_version
884
885 if kernel_is 2 4; then
886 if [ "$( gcc-major-version )" -eq "4" ] ; then
887 echo
888 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
889 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
890 echo
891 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
892 ewarn "newer kernel that supports gcc-4."
893 echo
894 ewarn "Also be aware that bugreports about gcc-4 not working"
895 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
896 echo
897 epause 10
898 fi
899 fi
900
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 901 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 902}

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