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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 1.40 2006/02/16 21:46:50 exg Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.99 2013/02/10 06:20:10 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
57DEPEND="kernel_linux? ( virtual/linux-sources )"
58RDEPEND=""
59 113
60# Overwritable environment Var's 114# Overwritable environment Var's
61# --------------------------------------- 115# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 116KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
63 117
67case ${ARCH} in 121case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 122 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 123 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac 124esac
71 125
72# These are legacy wrappers for toolchain-funcs. 126# @FUNCTION: set_arch_to_kernel
73# I dont like them here, but oh well. 127# @DESCRIPTION:
128# Set the env ARCH to match what the kernel expects.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 129set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
130# @FUNCTION: set_arch_to_portage
131# @DESCRIPTION:
132# Set the env ARCH to match what portage expects.
75set_arch_to_portage() { export ARCH="$(tc-arch)"; } 133set_arch_to_portage() { export ARCH=$(tc-arch); }
76 134
77# qeinfo "Message" 135# qeinfo "Message"
78# ------------------- 136# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE 137# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output. 138# should not have visible output.
90 esac 148 esac
91 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 149 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
92} 150}
93 151
94qeinfo() { qout einfo "${@}" ; } 152qeinfo() { qout einfo "${@}" ; }
153qewarn() { qout ewarn "${@}" ; }
95qeerror() { qout eerror "${@}" ; } 154qeerror() { qout eerror "${@}" ; }
96 155
97# File Functions 156# File Functions
98# --------------------------------------- 157# ---------------------------------------
99 158
100# getfilevar accepts 2 vars as follows: 159# @FUNCTION: getfilevar
101# getfilevar <VARIABLE> <CONFIGFILE> 160# @USAGE: variable configfile
102 161# @RETURN: the value of the variable
162# @DESCRIPTION:
163# It detects the value of the variable defined in the file configfile. This is
164# done by including the configfile, and printing the variable with Make.
165# It WILL break if your makefile has missing dependencies!
103getfilevar() { 166getfilevar() {
104local ERROR workingdir basefname basedname myARCH="${ARCH}" 167 local ERROR basefname basedname myARCH="${ARCH}"
105 ERROR=0 168 ERROR=0
106 169
107 [ -z "${1}" ] && ERROR=1 170 [ -z "${1}" ] && ERROR=1
108 [ ! -f "${2}" ] && ERROR=1 171 [ ! -f "${2}" ] && ERROR=1
109 172
111 then 174 then
112 echo -e "\n" 175 echo -e "\n"
113 eerror "getfilevar requires 2 variables, with the second a valid file." 176 eerror "getfilevar requires 2 variables, with the second a valid file."
114 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 177 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
115 else 178 else
116 workingdir="${PWD}"
117 basefname="$(basename ${2})" 179 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 180 basedname="$(dirname ${2})"
119 unset ARCH 181 unset ARCH
120 182
121 cd "${basedname}" 183 # We use nonfatal because we want the caller to take care of things #373151
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 184 [[ ${EAPI:-0} == [0123] ]] && nonfatal() { "$@"; }
123 make ${BUILD_FIXES} -s -f - e 2>/dev/null 185 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
124 cd "${workingdir}" 186 nonfatal emake -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
125 187
126 ARCH=${myARCH} 188 ARCH=${myARCH}
127 fi 189 fi
128} 190}
129 191
192# @FUNCTION: getfilevar_noexec
193# @USAGE: variable configfile
194# @RETURN: the value of the variable
195# @DESCRIPTION:
196# It detects the value of the variable defined in the file configfile.
197# This is done with sed matching an expression only. If the variable is defined,
198# you will run into problems. See getfilevar for those cases.
199getfilevar_noexec() {
200 local ERROR basefname basedname mycat myARCH="${ARCH}"
201 ERROR=0
202 mycat='cat'
203
204 [ -z "${1}" ] && ERROR=1
205 [ ! -f "${2}" ] && ERROR=1
206 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
207
208 if [ "${ERROR}" = 1 ]
209 then
210 echo -e "\n"
211 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
212 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
213 else
214 ${mycat} "${2}" | \
215 sed -n \
216 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
217 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
218 s,[[:space:]]*\$,,g ;
219 p
220 }"
221 fi
222}
223
224# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
225# @INTERNAL
226# @DESCRIPTION:
227# This is only set if one of the linux_config_*exists functions has been called.
228# We use it for a QA warning that the check for a config has not been performed,
229# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
230# config is available at all.
231_LINUX_CONFIG_EXISTS_DONE=
232
233linux_config_qa_check() {
234 local f="$1"
235 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
236 ewarn "QA: You called $f before any linux_config_exists!"
237 ewarn "QA: The return value of $f will NOT guaranteed later!"
238 fi
239}
240
241# @FUNCTION: linux_config_src_exists
242# @RETURN: true or false
243# @DESCRIPTION:
244# It returns true if .config exists in a build directory otherwise false
245linux_config_src_exists() {
246 export _LINUX_CONFIG_EXISTS_DONE=1
247 [[ -n ${KV_OUT_DIR} && -s ${KV_OUT_DIR}/.config ]]
248}
249
250# @FUNCTION: linux_config_bin_exists
251# @RETURN: true or false
252# @DESCRIPTION:
253# It returns true if .config exists in /proc, otherwise false
254linux_config_bin_exists() {
255 export _LINUX_CONFIG_EXISTS_DONE=1
256 [[ -s /proc/config.gz ]]
257}
258
259# @FUNCTION: linux_config_exists
260# @RETURN: true or false
261# @DESCRIPTION:
262# It returns true if .config exists otherwise false
263#
264# This function MUST be checked before using any of the linux_chkconfig_*
265# functions.
266linux_config_exists() {
267 linux_config_src_exists || linux_config_bin_exists
268}
269
270# @FUNCTION: linux_config_path
271# @DESCRIPTION:
272# Echo the name of the config file to use. If none are found,
273# then return false.
274linux_config_path() {
275 if linux_config_src_exists; then
276 echo "${KV_OUT_DIR}/.config"
277 elif linux_config_bin_exists; then
278 echo "/proc/config.gz"
279 else
280 return 1
281 fi
282}
283
284# @FUNCTION: require_configured_kernel
285# @DESCRIPTION:
286# This function verifies that the current kernel is configured (it checks against the existence of .config)
287# otherwise it dies.
288require_configured_kernel() {
289 if ! linux_config_src_exists; then
290 qeerror "Could not find a usable .config in the kernel source directory."
291 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
292 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
293 qeerror "it points to the necessary object directory so that it might find .config."
294 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
295 fi
296}
297
298# @FUNCTION: linux_chkconfig_present
299# @USAGE: option
300# @RETURN: true or false
301# @DESCRIPTION:
302# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
303# If linux_config_exists returns false, the results of this are UNDEFINED. You
304# MUST call linux_config_exists first.
130linux_chkconfig_present() { 305linux_chkconfig_present() {
131local RESULT 306 linux_config_qa_check linux_chkconfig_present
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 307 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == [my] ]]
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 308}
135 309
310# @FUNCTION: linux_chkconfig_module
311# @USAGE: option
312# @RETURN: true or false
313# @DESCRIPTION:
314# It checks that CONFIG_<option>=m is present in the current kernel .config
315# If linux_config_exists returns false, the results of this are UNDEFINED. You
316# MUST call linux_config_exists first.
136linux_chkconfig_module() { 317linux_chkconfig_module() {
137local RESULT 318 linux_config_qa_check linux_chkconfig_module
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 319 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == m ]]
139 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 320}
141 321
322# @FUNCTION: linux_chkconfig_builtin
323# @USAGE: option
324# @RETURN: true or false
325# @DESCRIPTION:
326# It checks that CONFIG_<option>=y is present in the current kernel .config
327# If linux_config_exists returns false, the results of this are UNDEFINED. You
328# MUST call linux_config_exists first.
142linux_chkconfig_builtin() { 329linux_chkconfig_builtin() {
143local RESULT 330 linux_config_qa_check linux_chkconfig_builtin
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 331 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == y ]]
145 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 332}
147 333
334# @FUNCTION: linux_chkconfig_string
335# @USAGE: option
336# @RETURN: CONFIG_<option>
337# @DESCRIPTION:
338# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
339# If linux_config_exists returns false, the results of this are UNDEFINED. You
340# MUST call linux_config_exists first.
148linux_chkconfig_string() { 341linux_chkconfig_string() {
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 linux_config_qa_check linux_chkconfig_string
343 getfilevar_noexec "CONFIG_$1" "$(linux_config_path)"
150} 344}
151 345
152# Versioning Functions 346# Versioning Functions
153# --------------------------------------- 347# ---------------------------------------
154 348
155# kernel_is returns true when the version is the same as the passed version 349# @FUNCTION: kernel_is
350# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
351# @RETURN: true or false
352# @DESCRIPTION:
353# It returns true when the current kernel version satisfies the comparison against the passed version.
354# -eq is the default comparison.
156# 355#
356# @CODE
157# For Example where KV = 2.6.9 357# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 358# kernel_is 2 4 returns false
159# kernel_is 2 returns true 359# kernel_is 2 returns true
160# kernel_is 2 6 returns true 360# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 361# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 362# kernel_is 2 6 9 returns true
163# 363# @CODE
164# got the jist yet?
165 364
365# Note: duplicated in kernel-2.eclass
166kernel_is() { 366kernel_is() {
167 # if we haven't determined the version yet, we need too. 367 # if we haven't determined the version yet, we need to.
168 get_version; 368 linux-info_get_any_version
369
370 # Now we can continue
169 local operator test value x=0 y=0 z=0 371 local operator test value
170 372
171 case ${1} in 373 case ${1#-} in
172 lt) operator="-lt"; shift;; 374 lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 375 gt) operator="-gt"; shift;;
174 le) operator="-le"; shift;; 376 le) operator="-le"; shift;;
175 ge) operator="-ge"; shift;; 377 ge) operator="-ge"; shift;;
176 eq) operator="-eq"; shift;; 378 eq) operator="-eq"; shift;;
177 *) operator="-eq";; 379 *) operator="-eq";;
178 esac 380 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.";; 381 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
193 esac
194 done
195 382
196 [ ${test} ${operator} ${value} ] && return 0 || return 1 383 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
384 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
385 [ ${test} ${operator} ${value} ]
197} 386}
198 387
199get_localversion() { 388get_localversion() {
200 local lv_list i x 389 local lv_list i x
201 390
209 done 398 done
210 x=${x/ /} 399 x=${x/ /}
211 echo ${x} 400 echo ${x}
212} 401}
213 402
403# Check if the Makefile is valid for direct parsing.
404# Check status results:
405# - PASS, use 'getfilevar' to extract values
406# - FAIL, use 'getfilevar_noexec' to extract values
407# The check may fail if:
408# - make is not present
409# - corruption exists in the kernel makefile
410get_makefile_extract_function() {
411 local a='' b='' mkfunc='getfilevar'
412 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
413 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
414 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
415 echo "${mkfunc}"
416}
417
418# internal variable, so we know to only print the warning once
419get_version_warning_done=
420
421# @FUNCTION: get_version
422# @DESCRIPTION:
423# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
424# (if KV_FULL is already set it does nothing).
425#
426# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
427#
428# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
429# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
430# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 431get_version() {
215 local kbuild_output 432 local kbuild_output mkfunc tmplocal
216 433
217 # no need to execute this twice assuming KV_FULL is populated. 434 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 435 # we can force by unsetting KV_FULL
219 [ -n "${KV_FULL}" ] && return 0 436 [ -n "${KV_FULL}" ] && return 0
220 437
221 # if we dont know KV_FULL, then we need too. 438 # 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 439 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
223 unset KV_DIR 440 unset KV_DIR
224 441
225 # KV_DIR will contain the full path to the sources directory we should use 442 # KV_DIR will contain the full path to the sources directory we should use
443 [ -z "${get_version_warning_done}" ] && \
226 qeinfo "Determining the location of the kernel source code" 444 qeinfo "Determining the location of the kernel source code"
227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 445 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 446 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
229 447
230 if [ -z "${KV_DIR}" ] 448 if [ -z "${KV_DIR}" ]
231 then 449 then
450 if [ -z "${get_version_warning_done}" ]; then
451 get_version_warning_done=1
232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 452 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
233 qeinfo "This package requires Linux sources." 453 #qeinfo "This package requires Linux sources."
234 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 454 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
235 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 455 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)." 456 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 457 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else 458 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 459 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
460 fi
240 fi 461 fi
241 return 1 462 return 1
242 fi 463 fi
243 464
465 if [ -z "${get_version_warning_done}" ]; then
244 qeinfo "Found kernel source directory:" 466 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}" 467 qeinfo " ${KV_DIR}"
468 fi
246 469
247 if [ ! -s "${KV_DIR}/Makefile" ] 470 if [ ! -s "${KV_DIR}/Makefile" ]
248 then 471 then
472 if [ -z "${get_version_warning_done}" ]; then
473 get_version_warning_done=1
249 qeerror "Could not find a Makefile in the kernel source directory." 474 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" 475 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
476 fi
251 return 1 477 return 1
252 fi 478 fi
253 479
254 # OK so now we know our sources directory, but they might be using 480 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-* 481 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh? 482 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI? 483 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 484 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
259 485
486 # keep track of it
487 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
488
489 # Decide the function used to extract makefile variables.
490 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
491
260 # And if we didn't pass it, we can take a nosey in the Makefile 492 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 493 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 494 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263 495
264 # And contrary to existing functions I feel we shouldn't trust the 496 # And contrary to existing functions I feel we shouldn't trust the
265 # directory name to find version information as this seems insane. 497 # directory name to find version information as this seems insane.
266 # so we parse ${KV_DIR}/Makefile 498 # so we parse ${KERNEL_MAKEFILE}
267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 499 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 500 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 501 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 502 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
271 503
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 504 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then 505 then
506 if [ -z "${get_version_warning_done}" ]; then
507 get_version_warning_done=1
274 qeerror "Could not detect kernel version." 508 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 509 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
510 fi
276 return 1 511 return 1
277 fi 512 fi
278 513
279 # and in newer versions we can also pull LOCALVERSION if it is set. 514 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 515 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 516 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 517 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 518 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 519
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 520 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 521 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 522 if [ -n "${KV_OUT_DIR}" ];
289 then 523 then
290 qeinfo "Found kernel object directory:" 524 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 525 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 526 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 527 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 528 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 529
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 530 # Grab the kernel release from the output directory.
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 531 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
300 KV_LOCAL="${KV_LOCAL//\"/}" 532 # this function.
533 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
534 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
535 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
536 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
537 else
538 KV_LOCAL=
539 fi
540
541 # KV_LOCAL currently contains the full release; discard the first bits.
542 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
543
544 # If the updated local version was not changed, the tree is not prepared.
545 # Clear out KV_LOCAL in that case.
546 # TODO: this does not detect a change in the localversion part between
547 # kernel.release and the value that would be generated.
548 if [ "$KV_LOCAL" = "$tmplocal" ]; then
549 KV_LOCAL=
550 else
551 KV_LOCAL=$tmplocal
552 fi
301 553
302 # And we should set KV_FULL to the full expanded version 554 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 555 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 556
305 qeinfo "Found sources for kernel version:" 557 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 558 qeinfo " ${KV_FULL}"
307 559
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 560 return 0
318} 561}
319 562
563# @FUNCTION: get_running_version
564# @DESCRIPTION:
565# It gets the version of the current running kernel and the result is the same as get_version() if the
566# function can find the sources.
320get_running_version() { 567get_running_version() {
321 KV_FULL=$(uname -r) 568 KV_FULL=$(uname -r)
322 569
570 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
571 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
572 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
573 unset KV_FULL
574 get_version
575 return $?
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 576 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 577 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL 578 unset KV_FULL
326 get_version 579 get_version
327 return $? 580 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 581 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
329 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 582 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
330 unset KV_FULL 583 unset KV_FULL
331 get_version 584 get_version
332 return $? 585 return $?
333 else 586 else
587 # This handles a variety of weird kernel versions. Make sure to update
588 # tests/linux-info:get_running_version.sh if you want to change this.
589 local kv_full=${KV_FULL//[-+_]*}
334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 590 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 591 KV_MINOR=$(get_version_component_range 2 ${kv_full})
336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 592 KV_PATCH=$(get_version_component_range 3 ${kv_full})
337 KV_PATCH=${KV_PATCH//-*} 593 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 594 : ${KV_PATCH:=0}
339 && KV_EXTRA="-${KV_FULL#*-}"
340 fi 595 fi
341 return 0 596 return 0
597}
598
599# This next function is named with the eclass prefix to avoid conflicts with
600# some old versionator-like eclass functions.
601
602# @FUNCTION: linux-info_get_any_version
603# @DESCRIPTION:
604# This attempts to find the version of the sources, and otherwise falls back to
605# the version of the running kernel.
606linux-info_get_any_version() {
607 get_version
608 if [[ $? -ne 0 ]]; then
609 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
610 get_running_version
611 fi
342} 612}
343 613
344 614
345# ebuild check functions 615# ebuild check functions
346# --------------------------------------- 616# ---------------------------------------
347 617
618# @FUNCTION: check_kernel_built
619# @DESCRIPTION:
620# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 621check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 622 # if we haven't determined the version yet, we need to
623 require_configured_kernel
350 get_version; 624 get_version
351 625
626 local versionh_path
627 if kernel_is -ge 3 7; then
628 versionh_path="include/generated/uapi/linux/version.h"
629 else
630 versionh_path="include/linux/version.h"
631 fi
632
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 633 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
353 then 634 then
354 eerror "These sources have not yet been prepared." 635 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 636 eerror "We cannot build against an unprepared tree."
356 eerror "To resolve this, please type the following:" 637 eerror "To resolve this, please type the following:"
357 eerror 638 eerror
362 eerror "Then please try merging this module again." 643 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 644 die "Kernel sources need compiling first"
364 fi 645 fi
365} 646}
366 647
648# @FUNCTION: check_modules_supported
649# @DESCRIPTION:
650# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 651check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 652 # if we haven't determined the version yet, we need too.
653 require_configured_kernel
369 get_version; 654 get_version
370 655
371 if ! linux_chkconfig_builtin "MODULES" 656 if ! linux_chkconfig_builtin "MODULES"; then
372 then
373 eerror "These sources do not support loading external modules." 657 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 658 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." 659 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 660 die "No support for external modules in ${KV_FULL} config"
377 fi 661 fi
378} 662}
379 663
664# @FUNCTION: check_extra_config
665# @DESCRIPTION:
666# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
667# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 668check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 669 local config negate die error reworkmodulenames
670 local soft_errors_count=0 hard_errors_count=0 config_required=0
671 # store the value of the QA check, because otherwise we won't catch usages
672 # after if check_extra_config is called AND other direct calls are done
673 # later.
674 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
383 675
384 # if we haven't determined the version yet, we need too. 676 # if we haven't determined the version yet, we need to
385 get_version; 677 linux-info_get_any_version
386 678
679 # Determine if we really need a .config. The only time when we don't need
680 # one is when all of the CONFIG_CHECK options are prefixed with "~".
681 for config in ${CONFIG_CHECK}; do
682 if [[ "${config:0:1}" != "~" ]]; then
683 config_required=1
684 break
685 fi
686 done
687
688 if [[ ${config_required} == 0 ]]; then
689 # In the case where we don't require a .config, we can now bail out
690 # if the user has no .config as there is nothing to do. Otherwise
691 # code later will cause a failure due to missing .config.
692 if ! linux_config_exists; then
693 ewarn "Unable to check for the following kernel config options due"
694 ewarn "to absence of any configured kernel sources or compiled"
695 ewarn "config:"
696 for config in ${CONFIG_CHECK}; do
697 local_error="ERROR_${config#\~}"
698 msg="${!local_error}"
699 if [[ "x${msg}" == "x" ]]; then
700 local_error="WARNING_${config#\~}"
701 msg="${!local_error}"
702 fi
703 ewarn " - ${config#\~}${msg:+ - }${msg}"
704 done
705 ewarn "You're on your own to make sure they are set if needed."
706 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
707 return 0
708 fi
709 else
710 require_configured_kernel
711 fi
712
387 einfo "Checking for suitable kernel configuration options:" 713 einfo "Checking for suitable kernel configuration options..."
714
388 for config in ${CONFIG_CHECK} 715 for config in ${CONFIG_CHECK}
389 do 716 do
390 # if we specify any fatal, ensure we honor them 717 # if we specify any fatal, ensure we honor them
391 die=1 718 die=1
392 error=0 719 error=0
393 negate=0 720 negate=0
394 reworkmodulenames=0 721 reworkmodulenames=0
395 722
396 if [[ -z ${config//\!*} ]]; then 723 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 724 die=0
398 config=${config:1} 725 config=${config:1}
399 fi 726 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 727 die=0
402 reworkmodulenames=1 728 reworkmodulenames=1
403 config=${config:1} 729 config=${config:1}
404 fi 730 fi
405 if [[ -z ${config/\~*} ]]; then 731 if [[ ${config:0:1} == "!" ]]; then
406 die=0 732 negate=1
407 config=${config:1} 733 config=${config:1}
408 fi 734 fi
409 735
410 if [[ ${negate} == 1 ]]; then 736 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 737 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 738 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 739 local temp_config="${config//*:}" i n
414 config="${config//:*}" 740 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 741 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 742 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 743 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 744 [[ -z ${n//\(*} ]] && \
422 fi 748 fi
423 else 749 else
424 linux_chkconfig_present ${config} || error=1 750 linux_chkconfig_present ${config} || error=1
425 fi 751 fi
426 752
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 753 if [[ ${error} > 0 ]]; then
754 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 755 local_error="ERROR_${config}"
756 local_error="${!local_error}"
757
758 if [[ -z "${local_error}" ]]; then
759 # using old, deprecated format.
760 local_error="${config}_ERROR"
433 local_error="${!local_error}" 761 local_error="${!local_error}"
434 762 fi
435 if [[ -z "${local_error}" ]]; then 763 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 764 #soft errors can be warnings
437 local_error="${config}_ERROR" 765 local_error="WARNING_${config}"
438 local_error="${!local_error}" 766 local_error="${!local_error}"
767 if [[ -n "${local_error}" ]] ; then
768 report_func="ewarn"
439 fi 769 fi
440
441 if [[ -z "${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 " ${local_error}"
448 fi 770 fi
771
772 if [[ -z "${local_error}" ]]; then
773 [[ ${error} == 1 ]] \
774 && local_error="is not set when it should be." \
775 || local_error="should not be set. But it is."
776 local_error="CONFIG_${config}:\t ${local_error}"
777 fi
778 if [[ ${die} == 0 ]]; then
779 ${report_func} " ${local_error}"
780 soft_errors_count=$[soft_errors_count + 1]
781 else
782 ${report_func} " ${local_error}"
783 hard_errors_count=$[hard_errors_count + 1]
784 fi
449 fi 785 fi
450 done 786 done
451 787
452 if [[ ${error} > 0 ]]; then 788 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 789 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 790 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 791 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 792 eerror "this package again."
793 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
458 die "Incorrect kernel configuration options" 794 die "Incorrect kernel configuration options"
795 elif [[ ${soft_errors_count} > 0 ]]; then
796 ewarn "Please check to make sure these options are set correctly."
797 ewarn "Failure to do so may cause unexpected problems."
798 else
799 eend 0
459 fi 800 fi
460 fi 801 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
461} 802}
462 803
463check_zlibinflate() { 804check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 805 # if we haven't determined the version yet, we need to
806 require_configured_kernel
465 get_version; 807 get_version
466 808
467 # although I restructured this code - I really really really dont support it! 809 # although I restructured this code - I really really really dont support it!
468 810
469 # bug #27882 - zlib routines are only linked into the kernel 811 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 812 # if something compiled into the kernel calls them
477 local DEFLATE 819 local DEFLATE
478 820
479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 821 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
480 822
481 ebegin "checking ZLIB_INFLATE" 823 ebegin "checking ZLIB_INFLATE"
482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 824 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
483 eend $? 825 eend $?
484 [ "$?" != 0 ] && die 826 [ "$?" != 0 ] && die
485 827
486 ebegin "checking ZLIB_DEFLATE" 828 ebegin "checking ZLIB_DEFLATE"
487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 829 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
488 eend $? 830 eend $?
489 [ "$?" != 0 ] && die 831 [ "$?" != 0 ] && die
490 832
491 local LINENO_START 833 local LINENO_START
492 local LINENO_END 834 local LINENO_END
530} 872}
531 873
532################################ 874################################
533# Default pkg_setup 875# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 876# Also used when inheriting linux-mod to force a get_version call
535 877# @FUNCTION: linux-info_pkg_setup
878# @DESCRIPTION:
879# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
880# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 881linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 882 linux-info_get_any_version
883
884 if kernel_is 2 4; then
885 if [ "$( gcc-major-version )" -eq "4" ] ; then
886 echo
887 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
888 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
889 echo
890 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
891 ewarn "newer kernel that supports gcc-4."
892 echo
893 ewarn "Also be aware that bugreports about gcc-4 not working"
894 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
895 echo
896 epause 10
897 fi
898 fi
899
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 900 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 901}

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