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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 1.100 2013/02/10 07:53:31 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 ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)." 456 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 457 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else 458 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 459 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
460 fi
240 fi 461 fi
241 return 1 462 return 1
242 fi 463 fi
243 464
465 # See if the kernel dir is actually an output dir. #454294
466 if [ -z "${KBUILD_OUTPUT}" -a -L "${KERNEL_DIR}/source" ]; then
467 KBUILD_OUTPUT=${KERNEL_DIR}
468 KERNEL_DIR=$(readlink -f "${KERNEL_DIR}/source")
469 KV_DIR=${KERNEL_DIR}
470 fi
471
472 if [ -z "${get_version_warning_done}" ]; then
244 qeinfo "Found kernel source directory:" 473 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}" 474 qeinfo " ${KV_DIR}"
475 fi
246 476
247 if [ ! -s "${KV_DIR}/Makefile" ] 477 if [ ! -s "${KV_DIR}/Makefile" ]
248 then 478 then
479 if [ -z "${get_version_warning_done}" ]; then
480 get_version_warning_done=1
249 qeerror "Could not find a Makefile in the kernel source directory." 481 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" 482 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
483 fi
251 return 1 484 return 1
252 fi 485 fi
253 486
254 # OK so now we know our sources directory, but they might be using 487 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-* 488 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh? 489 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI? 490 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 491 local OUTPUT_DIR=${KBUILD_OUTPUT}
492
493 # keep track of it
494 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
495
496 # Decide the function used to extract makefile variables.
497 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
259 498
260 # And if we didn't pass it, we can take a nosey in the Makefile 499 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 500 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 501 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263 502
264 # And contrary to existing functions I feel we shouldn't trust the 503 # And contrary to existing functions I feel we shouldn't trust the
265 # directory name to find version information as this seems insane. 504 # directory name to find version information as this seems insane.
266 # so we parse ${KV_DIR}/Makefile 505 # so we parse ${KERNEL_MAKEFILE}
267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 506 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 507 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 508 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 509 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
271 510
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 511 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then 512 then
513 if [ -z "${get_version_warning_done}" ]; then
514 get_version_warning_done=1
274 qeerror "Could not detect kernel version." 515 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 516 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
517 fi
276 return 1 518 return 1
277 fi 519 fi
278 520
279 # and in newer versions we can also pull LOCALVERSION if it is set. 521 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 522 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 523 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 524 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 525 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 526
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 527 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 528 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 529 if [ -n "${KV_OUT_DIR}" ];
289 then 530 then
290 qeinfo "Found kernel object directory:" 531 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 532 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 533 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 534 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 535 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 536
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 537 # Grab the kernel release from the output directory.
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 538 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
300 KV_LOCAL="${KV_LOCAL//\"/}" 539 # this function.
540 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
541 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
542 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
543 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
544 else
545 KV_LOCAL=
546 fi
547
548 # KV_LOCAL currently contains the full release; discard the first bits.
549 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
550
551 # If the updated local version was not changed, the tree is not prepared.
552 # Clear out KV_LOCAL in that case.
553 # TODO: this does not detect a change in the localversion part between
554 # kernel.release and the value that would be generated.
555 if [ "$KV_LOCAL" = "$tmplocal" ]; then
556 KV_LOCAL=
557 else
558 KV_LOCAL=$tmplocal
559 fi
301 560
302 # And we should set KV_FULL to the full expanded version 561 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 562 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 563
305 qeinfo "Found sources for kernel version:" 564 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 565 qeinfo " ${KV_FULL}"
307 566
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 567 return 0
318} 568}
319 569
570# @FUNCTION: get_running_version
571# @DESCRIPTION:
572# It gets the version of the current running kernel and the result is the same as get_version() if the
573# function can find the sources.
320get_running_version() { 574get_running_version() {
321 KV_FULL=$(uname -r) 575 KV_FULL=$(uname -r)
322 576
577 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
578 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
579 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
580 unset KV_FULL
581 get_version
582 return $?
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 583 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 584 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL 585 unset KV_FULL
326 get_version 586 get_version
327 return $? 587 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 588 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
329 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 589 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
330 unset KV_FULL 590 unset KV_FULL
331 get_version 591 get_version
332 return $? 592 return $?
333 else 593 else
594 # This handles a variety of weird kernel versions. Make sure to update
595 # tests/linux-info:get_running_version.sh if you want to change this.
596 local kv_full=${KV_FULL//[-+_]*}
334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 597 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 598 KV_MINOR=$(get_version_component_range 2 ${kv_full})
336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 599 KV_PATCH=$(get_version_component_range 3 ${kv_full})
337 KV_PATCH=${KV_PATCH//-*} 600 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 601 : ${KV_PATCH:=0}
339 && KV_EXTRA="-${KV_FULL#*-}"
340 fi 602 fi
341 return 0 603 return 0
604}
605
606# This next function is named with the eclass prefix to avoid conflicts with
607# some old versionator-like eclass functions.
608
609# @FUNCTION: linux-info_get_any_version
610# @DESCRIPTION:
611# This attempts to find the version of the sources, and otherwise falls back to
612# the version of the running kernel.
613linux-info_get_any_version() {
614 get_version
615 if [[ $? -ne 0 ]]; then
616 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
617 get_running_version
618 fi
342} 619}
343 620
344 621
345# ebuild check functions 622# ebuild check functions
346# --------------------------------------- 623# ---------------------------------------
347 624
625# @FUNCTION: check_kernel_built
626# @DESCRIPTION:
627# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 628check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 629 # if we haven't determined the version yet, we need to
630 require_configured_kernel
350 get_version; 631 get_version
351 632
633 local versionh_path
634 if kernel_is -ge 3 7; then
635 versionh_path="include/generated/uapi/linux/version.h"
636 else
637 versionh_path="include/linux/version.h"
638 fi
639
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 640 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
353 then 641 then
354 eerror "These sources have not yet been prepared." 642 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 643 eerror "We cannot build against an unprepared tree."
356 eerror "To resolve this, please type the following:" 644 eerror "To resolve this, please type the following:"
357 eerror 645 eerror
362 eerror "Then please try merging this module again." 650 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 651 die "Kernel sources need compiling first"
364 fi 652 fi
365} 653}
366 654
655# @FUNCTION: check_modules_supported
656# @DESCRIPTION:
657# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 658check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 659 # if we haven't determined the version yet, we need too.
660 require_configured_kernel
369 get_version; 661 get_version
370 662
371 if ! linux_chkconfig_builtin "MODULES" 663 if ! linux_chkconfig_builtin "MODULES"; then
372 then
373 eerror "These sources do not support loading external modules." 664 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 665 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." 666 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 667 die "No support for external modules in ${KV_FULL} config"
377 fi 668 fi
378} 669}
379 670
671# @FUNCTION: check_extra_config
672# @DESCRIPTION:
673# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
674# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 675check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 676 local config negate die error reworkmodulenames
677 local soft_errors_count=0 hard_errors_count=0 config_required=0
678 # store the value of the QA check, because otherwise we won't catch usages
679 # after if check_extra_config is called AND other direct calls are done
680 # later.
681 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
383 682
384 # if we haven't determined the version yet, we need too. 683 # if we haven't determined the version yet, we need to
385 get_version; 684 linux-info_get_any_version
386 685
686 # Determine if we really need a .config. The only time when we don't need
687 # one is when all of the CONFIG_CHECK options are prefixed with "~".
688 for config in ${CONFIG_CHECK}; do
689 if [[ "${config:0:1}" != "~" ]]; then
690 config_required=1
691 break
692 fi
693 done
694
695 if [[ ${config_required} == 0 ]]; then
696 # In the case where we don't require a .config, we can now bail out
697 # if the user has no .config as there is nothing to do. Otherwise
698 # code later will cause a failure due to missing .config.
699 if ! linux_config_exists; then
700 ewarn "Unable to check for the following kernel config options due"
701 ewarn "to absence of any configured kernel sources or compiled"
702 ewarn "config:"
703 for config in ${CONFIG_CHECK}; do
704 local_error="ERROR_${config#\~}"
705 msg="${!local_error}"
706 if [[ "x${msg}" == "x" ]]; then
707 local_error="WARNING_${config#\~}"
708 msg="${!local_error}"
709 fi
710 ewarn " - ${config#\~}${msg:+ - }${msg}"
711 done
712 ewarn "You're on your own to make sure they are set if needed."
713 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
714 return 0
715 fi
716 else
717 require_configured_kernel
718 fi
719
387 einfo "Checking for suitable kernel configuration options:" 720 einfo "Checking for suitable kernel configuration options..."
721
388 for config in ${CONFIG_CHECK} 722 for config in ${CONFIG_CHECK}
389 do 723 do
390 # if we specify any fatal, ensure we honor them 724 # if we specify any fatal, ensure we honor them
391 die=1 725 die=1
392 error=0 726 error=0
393 negate=0 727 negate=0
394 reworkmodulenames=0 728 reworkmodulenames=0
395 729
396 if [[ -z ${config//\!*} ]]; then 730 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 731 die=0
398 config=${config:1} 732 config=${config:1}
399 fi 733 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 734 die=0
402 reworkmodulenames=1 735 reworkmodulenames=1
403 config=${config:1} 736 config=${config:1}
404 fi 737 fi
405 if [[ -z ${config/\~*} ]]; then 738 if [[ ${config:0:1} == "!" ]]; then
406 die=0 739 negate=1
407 config=${config:1} 740 config=${config:1}
408 fi 741 fi
409 742
410 if [[ ${negate} == 1 ]]; then 743 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 744 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 745 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 746 local temp_config="${config//*:}" i n
414 config="${config//:*}" 747 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 748 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 749 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 750 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 751 [[ -z ${n//\(*} ]] && \
422 fi 755 fi
423 else 756 else
424 linux_chkconfig_present ${config} || error=1 757 linux_chkconfig_present ${config} || error=1
425 fi 758 fi
426 759
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 760 if [[ ${error} > 0 ]]; then
761 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 762 local_error="ERROR_${config}"
763 local_error="${!local_error}"
764
765 if [[ -z "${local_error}" ]]; then
766 # using old, deprecated format.
767 local_error="${config}_ERROR"
433 local_error="${!local_error}" 768 local_error="${!local_error}"
434 769 fi
435 if [[ -z "${local_error}" ]]; then 770 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 771 #soft errors can be warnings
437 local_error="${config}_ERROR" 772 local_error="WARNING_${config}"
438 local_error="${!local_error}" 773 local_error="${!local_error}"
774 if [[ -n "${local_error}" ]] ; then
775 report_func="ewarn"
439 fi 776 fi
440
441 if [[ -z "${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 " ${local_error}"
448 fi 777 fi
778
779 if [[ -z "${local_error}" ]]; then
780 [[ ${error} == 1 ]] \
781 && local_error="is not set when it should be." \
782 || local_error="should not be set. But it is."
783 local_error="CONFIG_${config}:\t ${local_error}"
784 fi
785 if [[ ${die} == 0 ]]; then
786 ${report_func} " ${local_error}"
787 soft_errors_count=$[soft_errors_count + 1]
788 else
789 ${report_func} " ${local_error}"
790 hard_errors_count=$[hard_errors_count + 1]
791 fi
449 fi 792 fi
450 done 793 done
451 794
452 if [[ ${error} > 0 ]]; then 795 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 796 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 797 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 798 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 799 eerror "this package again."
800 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
458 die "Incorrect kernel configuration options" 801 die "Incorrect kernel configuration options"
802 elif [[ ${soft_errors_count} > 0 ]]; then
803 ewarn "Please check to make sure these options are set correctly."
804 ewarn "Failure to do so may cause unexpected problems."
805 else
806 eend 0
459 fi 807 fi
460 fi 808 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
461} 809}
462 810
463check_zlibinflate() { 811check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 812 # if we haven't determined the version yet, we need to
813 require_configured_kernel
465 get_version; 814 get_version
466 815
467 # although I restructured this code - I really really really dont support it! 816 # although I restructured this code - I really really really dont support it!
468 817
469 # bug #27882 - zlib routines are only linked into the kernel 818 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 819 # if something compiled into the kernel calls them
477 local DEFLATE 826 local DEFLATE
478 827
479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 828 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
480 829
481 ebegin "checking ZLIB_INFLATE" 830 ebegin "checking ZLIB_INFLATE"
482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 831 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
483 eend $? 832 eend $?
484 [ "$?" != 0 ] && die 833 [ "$?" != 0 ] && die
485 834
486 ebegin "checking ZLIB_DEFLATE" 835 ebegin "checking ZLIB_DEFLATE"
487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 836 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
488 eend $? 837 eend $?
489 [ "$?" != 0 ] && die 838 [ "$?" != 0 ] && die
490 839
491 local LINENO_START 840 local LINENO_START
492 local LINENO_END 841 local LINENO_END
530} 879}
531 880
532################################ 881################################
533# Default pkg_setup 882# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 883# Also used when inheriting linux-mod to force a get_version call
535 884# @FUNCTION: linux-info_pkg_setup
885# @DESCRIPTION:
886# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
887# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 888linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 889 linux-info_get_any_version
890
891 if kernel_is 2 4; then
892 if [ "$( gcc-major-version )" -eq "4" ] ; then
893 echo
894 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
895 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
896 echo
897 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
898 ewarn "newer kernel that supports gcc-4."
899 echo
900 ewarn "Also be aware that bugreports about gcc-4 not working"
901 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
902 echo
903 epause 10
904 fi
905 fi
906
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 907 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 908}

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