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Revision 1.1.1.1 Revision 1.102
1# Copyright 1999-2004 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 1.1.1.1 2005/11/30 09:59:20 chriswhite Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.102 2013/09/29 02:49:40 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"
27# ERROR_CFG <string> The error message to display when the above check 49#
50# To simply warn about a missing option, prepend a '~'.
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
28# fails. <CFG> should reference the appropriate option 63# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
29# as above. ie: ERROR_MTRR="MTRR exists in the .config 64#
30# but shouldn't!!" 65# e.g.: ERROR_MTRR="MTRR exists in the .config but shouldn't!!"
31# KBUILD_OUTPUT <string> This is passed on commandline, or can be set from 66
32# 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
33# which is to be used as the kernel object directory. 70# which is to be used as the kernel object directory.
34 71
35# 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
36# set by hand. These are as follows: 73# set by hand. These are as follows:
37# 74
38# Env Var Option Description 75# @ECLASS-VARIABLE: KV_FULL
39# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 76# @DESCRIPTION:
40# 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
41# KV_MINOR <integer> The kernel minor version. ie: 6 78
42# KV_PATCH <integer> The kernel patch version. ie: 9 79# @ECLASS-VARIABLE: KV_MAJOR
43# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 80# @DESCRIPTION:
44# 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
45# 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
46# KERNEL_DIR is invalid. 102# KERNEL_DIR is invalid.
47# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 103
48# koutput is used. This should be used for referencing 104# @ECLASS-VARIABLE: KV_OUT_DIR
49# .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.
50 108
51# And to ensure all the weirdness with crosscompile 109# And to ensure all the weirdness with crosscompile
52inherit toolchain-funcs versionator 110inherit toolchain-funcs versionator
53 111
54EXPORT_FUNCTIONS pkg_setup 112EXPORT_FUNCTIONS pkg_setup
63case ${ARCH} in 121case ${ARCH} in
64 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 122 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
65 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 123 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
66esac 124esac
67 125
68# These are legacy wrappers for toolchain-funcs. 126# @FUNCTION: set_arch_to_kernel
69# I dont like them here, but oh well. 127# @DESCRIPTION:
128# Set the env ARCH to match what the kernel expects.
70set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 129set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
130# @FUNCTION: set_arch_to_portage
131# @DESCRIPTION:
132# Set the env ARCH to match what portage expects.
71set_arch_to_portage() { export ARCH="$(tc-arch)"; } 133set_arch_to_portage() { export ARCH=$(tc-arch); }
72 134
73# qeinfo "Message" 135# qeinfo "Message"
74# ------------------- 136# -------------------
75# qeinfo is a quiet einfo call when EBUILD_PHASE 137# qeinfo is a quiet einfo call when EBUILD_PHASE
76# should not have visible output. 138# should not have visible output.
86 esac 148 esac
87 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 149 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
88} 150}
89 151
90qeinfo() { qout einfo "${@}" ; } 152qeinfo() { qout einfo "${@}" ; }
153qewarn() { qout ewarn "${@}" ; }
91qeerror() { qout eerror "${@}" ; } 154qeerror() { qout eerror "${@}" ; }
92 155
93# File Functions 156# File Functions
94# --------------------------------------- 157# ---------------------------------------
95 158
96# getfilevar accepts 2 vars as follows: 159# @FUNCTION: getfilevar
97# getfilevar <VARIABLE> <CONFIGFILE> 160# @USAGE: variable configfile
98 161# @RETURN: the value of the variable
162# @DESCRIPTION:
163# It detects the value of the variable defined in the file configfile. This is
164# done by including the configfile, and printing the variable with Make.
165# It WILL break if your makefile has missing dependencies!
99getfilevar() { 166getfilevar() {
100local ERROR workingdir basefname basedname myARCH="${ARCH}" 167 local ERROR basefname basedname myARCH="${ARCH}"
101 ERROR=0 168 ERROR=0
102 169
103 [ -z "${1}" ] && ERROR=1 170 [ -z "${1}" ] && ERROR=1
104 [ ! -f "${2}" ] && ERROR=1 171 [ ! -f "${2}" ] && ERROR=1
105 172
107 then 174 then
108 echo -e "\n" 175 echo -e "\n"
109 eerror "getfilevar requires 2 variables, with the second a valid file." 176 eerror "getfilevar requires 2 variables, with the second a valid file."
110 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 177 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
111 else 178 else
112 workingdir=${PWD}
113 basefname=$(basename ${2}) 179 basefname="$(basename ${2})"
114 basedname=$(dirname ${2}) 180 basedname="$(dirname ${2})"
115 unset ARCH 181 unset ARCH
116 182
117 cd ${basedname} 183 # We use nonfatal because we want the caller to take care of things #373151
118 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 184 [[ ${EAPI:-0} == [0123] ]] && nonfatal() { "$@"; }
119 make ${BUILD_FIXES} -s -f - e 2>/dev/null 185 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
120 cd ${workingdir} 186 nonfatal emake -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
121 187
122 ARCH=${myARCH} 188 ARCH=${myARCH}
123 fi 189 fi
124} 190}
125 191
192# @FUNCTION: getfilevar_noexec
193# @USAGE: variable configfile
194# @RETURN: the value of the variable
195# @DESCRIPTION:
196# It detects the value of the variable defined in the file configfile.
197# This is done with sed matching an expression only. If the variable is defined,
198# you will run into problems. See getfilevar for those cases.
199getfilevar_noexec() {
200 local ERROR basefname basedname mycat myARCH="${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 ${KV_OUT_DIR}"
295 fi
296}
297
298# @FUNCTION: linux_chkconfig_present
299# @USAGE: option
300# @RETURN: true or false
301# @DESCRIPTION:
302# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
303# If linux_config_exists returns false, the results of this are UNDEFINED. You
304# MUST call linux_config_exists first.
126linux_chkconfig_present() { 305linux_chkconfig_present() {
127local RESULT 306 linux_config_qa_check linux_chkconfig_present
128 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 307 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == [my] ]]
129 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
130} 308}
131 309
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.
132linux_chkconfig_module() { 317linux_chkconfig_module() {
133local RESULT 318 linux_config_qa_check linux_chkconfig_module
134 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 319 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == m ]]
135 [ "${RESULT}" = "m" ] && return 0 || return 1
136} 320}
137 321
322# @FUNCTION: linux_chkconfig_builtin
323# @USAGE: option
324# @RETURN: true or false
325# @DESCRIPTION:
326# It checks that CONFIG_<option>=y is present in the current kernel .config
327# If linux_config_exists returns false, the results of this are UNDEFINED. You
328# MUST call linux_config_exists first.
138linux_chkconfig_builtin() { 329linux_chkconfig_builtin() {
139local RESULT 330 linux_config_qa_check linux_chkconfig_builtin
140 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 331 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == y ]]
141 [ "${RESULT}" = "y" ] && return 0 || return 1
142} 332}
143 333
334# @FUNCTION: linux_chkconfig_string
335# @USAGE: option
336# @RETURN: CONFIG_<option>
337# @DESCRIPTION:
338# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
339# If linux_config_exists returns false, the results of this are UNDEFINED. You
340# MUST call linux_config_exists first.
144linux_chkconfig_string() { 341linux_chkconfig_string() {
145 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 342 linux_config_qa_check linux_chkconfig_string
343 getfilevar_noexec "CONFIG_$1" "$(linux_config_path)"
146} 344}
147 345
148# Versioning Functions 346# Versioning Functions
149# --------------------------------------- 347# ---------------------------------------
150 348
151# 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.
152# 355#
356# @CODE
153# For Example where KV = 2.6.9 357# For Example where KV = 2.6.9
154# kernel_is 2 4 returns false 358# kernel_is 2 4 returns false
155# kernel_is 2 returns true 359# kernel_is 2 returns true
156# kernel_is 2 6 returns true 360# kernel_is 2 6 returns true
157# kernel_is 2 6 8 returns false 361# kernel_is 2 6 8 returns false
158# kernel_is 2 6 9 returns true 362# kernel_is 2 6 9 returns true
159# 363# @CODE
160# got the jist yet?
161 364
365# Note: duplicated in kernel-2.eclass
162kernel_is() { 366kernel_is() {
163 # if we haven't determined the version yet, we need too. 367 # if we haven't determined the version yet, we need to.
164 get_version; 368 linux-info_get_any_version
369
370 # Now we can continue
165 local operator test value x=0 y=0 z=0 371 local operator test value
166 372
167 case ${1} in 373 case ${1#-} in
168 lt) operator="-lt"; shift;; 374 lt) operator="-lt"; shift;;
169 gt) operator="-gt"; shift;; 375 gt) operator="-gt"; shift;;
170 le) operator="-le"; shift;; 376 le) operator="-le"; shift;;
171 ge) operator="-ge"; shift;; 377 ge) operator="-ge"; shift;;
172 eq) operator="-eq"; shift;; 378 eq) operator="-eq"; shift;;
173 *) operator="-eq";; 379 *) operator="-eq";;
174 esac 380 esac
175
176 for x in ${@}; do
177 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
178 value="${value}${x}"
179 z=$((${z} + 1))
180
181 case ${z} in
182 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
183 test="${test}${KV_MAJOR}";;
184 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
185 test="${test}${KV_MINOR}";;
186 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
187 test="${test}${KV_PATCH}";;
188 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 381 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
189 esac
190 done
191 382
192 [ ${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} ${value} ]
193} 386}
194 387
195get_localversion() { 388get_localversion() {
196 local lv_list i x 389 local lv_list i x
197 390
205 done 398 done
206 x=${x/ /} 399 x=${x/ /}
207 echo ${x} 400 echo ${x}
208} 401}
209 402
403# Check if the Makefile is valid for direct parsing.
404# Check status results:
405# - PASS, use 'getfilevar' to extract values
406# - FAIL, use 'getfilevar_noexec' to extract values
407# The check may fail if:
408# - make is not present
409# - corruption exists in the kernel makefile
410get_makefile_extract_function() {
411 local a='' b='' mkfunc='getfilevar'
412 a="$(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).
210get_version() { 431get_version() {
211 local kbuild_output 432 local tmplocal
212 433
213 # no need to execute this twice assuming KV_FULL is populated. 434 # no need to execute this twice assuming KV_FULL is populated.
214 # we can force by unsetting KV_FULL 435 # we can force by unsetting KV_FULL
215 [ -n "${KV_FULL}" ] && return 0 436 [ -n "${KV_FULL}" ] && return 0
216 437
217 # if we dont know KV_FULL, then we need too. 438 # if we dont know KV_FULL, then we need too.
218 # 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
219 unset KV_DIR 440 unset KV_DIR
220 441
221 # 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 "${get_version_warning_done}" ] && \
222 qeinfo "Determining the location of the kernel source code" 444 qeinfo "Determining the location of the kernel source code"
223 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 445 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
224 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 446 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
225 447
226 if [ -z "${KV_DIR}" ] 448 if [ -z "${KV_DIR}" ]
227 then 449 then
450 if [ -z "${get_version_warning_done}" ]; then
451 get_version_warning_done=1
228 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 452 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
229 qeinfo "This package requires Linux sources." 453 #qeinfo "This package requires Linux sources."
230 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 454 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
231 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 455 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
232 qeinfo "(or the kernel you wish to build against)." 456 qeinfo "(or the kernel you wish to build against)."
233 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 457 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
234 else 458 else
235 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 459 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
460 fi
236 fi 461 fi
237 return 1 462 return 1
238 fi 463 fi
239 464
465 # See if the kernel dir is actually an output dir. #454294
466 if [ -z "${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
240 qeinfo "Found kernel source directory:" 473 qeinfo "Found kernel source directory:"
241 qeinfo " ${KV_DIR}" 474 qeinfo " ${KV_DIR}"
475 fi
242 476
243 if [ ! -s "${KV_DIR}/Makefile" ] 477 if [ ! -s "${KV_DIR}/Makefile" ]
244 then 478 then
479 if [ -z "${get_version_warning_done}" ]; then
480 get_version_warning_done=1
245 qeerror "Could not find a Makefile in the kernel source directory." 481 qeerror "Could not find a Makefile in the kernel source directory."
246 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 482 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
483 fi
247 return 1 484 return 1
248 fi 485 fi
249 486
250 # OK so now we know our sources directory, but they might be using 487 # OK so now we know our sources directory, but they might be using
251 # KBUILD_OUTPUT, and we need this for .config and localversions-* 488 # KBUILD_OUTPUT, and we need this for .config and localversions-*
252 # so we better find it eh? 489 # so we better find it eh?
253 # do we pass KBUILD_OUTPUT on the CLI? 490 # do we pass KBUILD_OUTPUT on the CLI?
254 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 491 local OUTPUT_DIR=${KBUILD_OUTPUT}
255 492
493 # keep track of it
494 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
495
496 if [[ -z ${OUTPUT_DIR} ]]; then
497 # Decide the function used to extract makefile variables.
498 local mkfunc=$(get_makefile_extract_function "${KERNEL_MAKEFILE}")
499
256 # And if we didn't pass it, we can take a nosey in the Makefile 500 # And if we didn't pass it, we can take a nosey in the Makefile.
257 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 501 OUTPUT_DIR=$(${mkfunc} KBUILD_OUTPUT "${KERNEL_MAKEFILE}")
258 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 502 fi
259 503
260 # And contrary to existing functions I feel we shouldn't trust the 504 # And contrary to existing functions I feel we shouldn't trust the
261 # directory name to find version information as this seems insane. 505 # directory name to find version information as this seems insane.
262 # so we parse ${KV_DIR}/Makefile 506 # So we parse ${KERNEL_MAKEFILE}. We should be able to trust that
263 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 507 # the Makefile is simple enough to use the noexec extract function.
264 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 508 # This has been true for every release thus far, and it's faster
265 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 509 # than using make to evaluate the Makefile every time.
266 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 510 KV_MAJOR=$(getfilevar_noexec VERSION "${KERNEL_MAKEFILE}")
511 KV_MINOR=$(getfilevar_noexec PATCHLEVEL "${KERNEL_MAKEFILE}")
512 KV_PATCH=$(getfilevar_noexec SUBLEVEL "${KERNEL_MAKEFILE}")
513 KV_EXTRA=$(getfilevar_noexec EXTRAVERSION "${KERNEL_MAKEFILE}")
267 514
268 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 515 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
269 then 516 then
517 if [ -z "${get_version_warning_done}" ]; then
518 get_version_warning_done=1
270 qeerror "Could not detect kernel version." 519 qeerror "Could not detect kernel version."
271 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 520 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
521 fi
272 return 1 522 return 1
273 fi 523 fi
274 524
275 # and in newer versions we can also pull LOCALVERSION if it is set. 525 # and in newer versions we can also pull LOCALVERSION if it is set.
276 # but before we do this, we need to find if we use a different object directory. 526 # but before we do this, we need to find if we use a different object directory.
277 # This *WILL* break if the user is using localversions, but we assume it was 527 # This *WILL* break if the user is using localversions, but we assume it was
278 # caught before this if they are. 528 # caught before this if they are.
279 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
280 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 529 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
281 530
282 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 531 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
283 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 532 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
284 if [ -n "${KV_OUT_DIR}" ]; 533 if [ -n "${KV_OUT_DIR}" ];
285 then 534 then
286 qeinfo "Found kernel object directory:" 535 qeinfo "Found kernel object directory:"
287 qeinfo " ${KV_OUT_DIR}" 536 qeinfo " ${KV_OUT_DIR}"
288
289 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
290 fi 537 fi
291 # and if we STILL haven't got it, then we better just set it to KV_DIR 538 # and if we STILL have not got it, then we better just set it to KV_DIR
292 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 539 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
293 540
294 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_OUT_DIR})" 541 # Grab the kernel release from the output directory.
295 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 542 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
296 KV_LOCAL="${KV_LOCAL//\"/}" 543 # this function.
544 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
545 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
546 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
547 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
548 else
549 KV_LOCAL=
550 fi
551
552 # KV_LOCAL currently contains the full release; discard the first bits.
553 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
554
555 # If the updated local version was not changed, the tree is not prepared.
556 # Clear out KV_LOCAL in that case.
557 # TODO: this does not detect a change in the localversion part between
558 # kernel.release and the value that would be generated.
559 if [ "$KV_LOCAL" = "$tmplocal" ]; then
560 KV_LOCAL=
561 else
562 KV_LOCAL=$tmplocal
563 fi
297 564
298 # And we should set KV_FULL to the full expanded version 565 # And we should set KV_FULL to the full expanded version
299 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 566 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
300 567
301 qeinfo "Found sources for kernel version:" 568 qeinfo "Found sources for kernel version:"
302 qeinfo " ${KV_FULL}" 569 qeinfo " ${KV_FULL}"
303 570
304 if [ ! -s "${KV_OUT_DIR}/.config" ]
305 then
306 qeerror "Could not find a usable .config in the kernel source directory."
307 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
308 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
309 qeerror "it points to the necessary object directory so that it might find .config."
310 return 1
311 fi
312
313 return 0 571 return 0
314} 572}
315 573
574# @FUNCTION: get_running_version
575# @DESCRIPTION:
576# It gets the version of the current running kernel and the result is the same as get_version() if the
577# function can find the sources.
316get_running_version() { 578get_running_version() {
317 KV_FULL=$(uname -r) 579 KV_FULL=$(uname -r)
318 580
581 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
582 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
583 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
584 unset KV_FULL
585 get_version
586 return $?
319 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 587 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
320 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 588 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
321 unset KV_FULL 589 unset KV_FULL
322 get_version 590 get_version
323 return $? 591 return $?
324 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 592 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
325 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 593 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
326 unset KV_FULL 594 unset KV_FULL
327 get_version 595 get_version
328 return $? 596 return $?
329 else 597 else
598 # This handles a variety of weird kernel versions. Make sure to update
599 # tests/linux-info:get_running_version.sh if you want to change this.
600 local kv_full=${KV_FULL//[-+_]*}
330 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 601 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
331 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 602 KV_MINOR=$(get_version_component_range 2 ${kv_full})
332 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 603 KV_PATCH=$(get_version_component_range 3 ${kv_full})
333 KV_PATCH=${KV_PATCH//-*} 604 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
334 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 605 : ${KV_PATCH:=0}
335 && KV_EXTRA="-${KV_FULL#*-}"
336 fi 606 fi
337 return 0 607 return 0
608}
609
610# This next function is named with the eclass prefix to avoid conflicts with
611# some old versionator-like eclass functions.
612
613# @FUNCTION: linux-info_get_any_version
614# @DESCRIPTION:
615# This attempts to find the version of the sources, and otherwise falls back to
616# the version of the running kernel.
617linux-info_get_any_version() {
618 get_version
619 if [[ $? -ne 0 ]]; then
620 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
621 get_running_version
622 fi
338} 623}
339 624
340 625
341# ebuild check functions 626# ebuild check functions
342# --------------------------------------- 627# ---------------------------------------
343 628
629# @FUNCTION: check_kernel_built
630# @DESCRIPTION:
631# This function verifies that the current kernel sources have been already prepared otherwise it dies.
344check_kernel_built() { 632check_kernel_built() {
345 # if we haven't determined the version yet, we need too. 633 # if we haven't determined the version yet, we need to
634 require_configured_kernel
346 get_version; 635 get_version
347 636
637 local versionh_path
638 if kernel_is -ge 3 7; then
639 versionh_path="include/generated/uapi/linux/version.h"
640 else
641 versionh_path="include/linux/version.h"
642 fi
643
348 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 644 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
349 then 645 then
350 eerror "These sources have not yet been prepared." 646 eerror "These sources have not yet been prepared."
351 eerror "We cannot build against an unprepared tree." 647 eerror "We cannot build against an unprepared tree."
352 eerror "To resolve this, please type the following:" 648 eerror "To resolve this, please type the following:"
353 eerror 649 eerror
358 eerror "Then please try merging this module again." 654 eerror "Then please try merging this module again."
359 die "Kernel sources need compiling first" 655 die "Kernel sources need compiling first"
360 fi 656 fi
361} 657}
362 658
659# @FUNCTION: check_modules_supported
660# @DESCRIPTION:
661# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
363check_modules_supported() { 662check_modules_supported() {
364 # if we haven't determined the version yet, we need too. 663 # if we haven't determined the version yet, we need too.
664 require_configured_kernel
365 get_version; 665 get_version
366 666
367 if ! linux_chkconfig_builtin "MODULES" 667 if ! linux_chkconfig_builtin "MODULES"; then
368 then
369 eerror "These sources do not support loading external modules." 668 eerror "These sources do not support loading external modules."
370 eerror "to be able to use this module please enable \"Loadable modules support\"" 669 eerror "to be able to use this module please enable \"Loadable modules support\""
371 eerror "in your kernel, recompile and then try merging this module again." 670 eerror "in your kernel, recompile and then try merging this module again."
372 die "No support for external modules in ${KV_FULL} config" 671 die "No support for external modules in ${KV_FULL} config"
373 fi 672 fi
374} 673}
375 674
675# @FUNCTION: check_extra_config
676# @DESCRIPTION:
677# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
678# the prefix ~ is not used) doesn't satisfy the directive.
376check_extra_config() { 679check_extra_config() {
377 local config negate error local_error i n
378 local temp_config die reworkmodulenames 680 local config negate die error reworkmodulenames
681 local soft_errors_count=0 hard_errors_count=0 config_required=0
682 # store the value of the QA check, because otherwise we won't catch usages
683 # after if check_extra_config is called AND other direct calls are done
684 # later.
685 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
379 686
380 # if we haven't determined the version yet, we need too. 687 # if we haven't determined the version yet, we need to
381 get_version; 688 linux-info_get_any_version
382 689
690 # Determine if we really need a .config. The only time when we don't need
691 # one is when all of the CONFIG_CHECK options are prefixed with "~".
692 for config in ${CONFIG_CHECK}; do
693 if [[ "${config:0:1}" != "~" ]]; then
694 config_required=1
695 break
696 fi
697 done
698
699 if [[ ${config_required} == 0 ]]; then
700 # In the case where we don't require a .config, we can now bail out
701 # if the user has no .config as there is nothing to do. Otherwise
702 # code later will cause a failure due to missing .config.
703 if ! linux_config_exists; then
704 ewarn "Unable to check for the following kernel config options due"
705 ewarn "to absence of any configured kernel sources or compiled"
706 ewarn "config:"
707 for config in ${CONFIG_CHECK}; do
708 local_error="ERROR_${config#\~}"
709 msg="${!local_error}"
710 if [[ "x${msg}" == "x" ]]; then
711 local_error="WARNING_${config#\~}"
712 msg="${!local_error}"
713 fi
714 ewarn " - ${config#\~}${msg:+ - }${msg}"
715 done
716 ewarn "You're on your own to make sure they are set if needed."
717 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
718 return 0
719 fi
720 else
721 require_configured_kernel
722 fi
723
383 einfo "Checking for suitable kernel configuration options:" 724 einfo "Checking for suitable kernel configuration options..."
725
384 for config in ${CONFIG_CHECK} 726 for config in ${CONFIG_CHECK}
385 do 727 do
386 # if we specify any fatal, ensure we honor them 728 # if we specify any fatal, ensure we honor them
387 die=1 729 die=1
388 error=0 730 error=0
389 negate=0 731 negate=0
390 reworkmodulenames=0 732 reworkmodulenames=0
391 733
392 if [[ -z ${config//\!*} ]]; then 734 if [[ ${config:0:1} == "~" ]]; then
393 negate=1 735 die=0
394 config=${config:1} 736 config=${config:1}
395 fi 737 elif [[ ${config:0:1} == "@" ]]; then
396 if [[ -z ${config/\@*} ]]; then
397 die=2 738 die=0
398 reworkmodulenames=1 739 reworkmodulenames=1
399 config=${config:1} 740 config=${config:1}
400 fi 741 fi
401 if [[ -z ${config/\~*} ]]; then 742 if [[ ${config:0:1} == "!" ]]; then
402 die=0 743 negate=1
403 config=${config:1} 744 config=${config:1}
404 fi 745 fi
405 746
406 if [[ ${negate} == 1 ]]; then 747 if [[ ${negate} == 1 ]]; then
407 linux_chkconfig_present ${config} && error=2 748 linux_chkconfig_present ${config} && error=2
408 elif [[ ${reworkmodulenames} == 1 ]]; then 749 elif [[ ${reworkmodulenames} == 1 ]]; then
409 temp_config="${config//*:}" 750 local temp_config="${config//*:}" i n
410 config="${config//:*}" 751 config="${config//:*}"
411 if linux_chkconfig_present ${config}; then 752 if linux_chkconfig_present ${config}; then
412 for i in ${MODULE_NAMES}; do 753 for i in ${MODULE_NAMES}; do
413 n="${i//${temp_config}}" 754 n="${i//${temp_config}}"
414 [[ -z ${n//(*} ]] && \ 755 [[ -z ${n//\(*} ]] && \
415 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}" 756 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
416 done 757 done
417 error=2 758 error=2
418 fi 759 fi
419 else 760 else
420 linux_chkconfig_present ${config} || error=1 761 linux_chkconfig_present ${config} || error=1
421 fi 762 fi
422 763
423 if [[ ${die} == 0 ]]; then
424 ebegin "CONFIG_${config}"
425 eend ${error}
426 else
427 if [[ ${error} > 0 ]]; then 764 if [[ ${error} > 0 ]]; then
765 local report_func="eerror" local_error
766 local_error="ERROR_${config}"
767 local_error="${!local_error}"
768
769 if [[ -z "${local_error}" ]]; then
770 # using old, deprecated format.
428 local_error="${config}_ERROR" 771 local_error="${config}_ERROR"
429 local_error="${!local_error}" 772 local_error="${!local_error}"
773 fi
774 if [[ ${die} == 0 && -z "${local_error}" ]]; then
775 #soft errors can be warnings
776 local_error="WARNING_${config}"
777 local_error="${!local_error}"
430 if [[ -z "${local_error}" ]]; then 778 if [[ -n "${local_error}" ]] ; then
431 [[ ${error} == 1 ]] \ 779 report_func="ewarn"
432 && local_error="is not set when it should be." \
433 || local_error="should not be set. But it is."
434 local_error="CONFIG_${config}:\t ${local_error}"
435 fi 780 fi
436 eerror " ${local_error}"
437 fi 781 fi
782
783 if [[ -z "${local_error}" ]]; then
784 [[ ${error} == 1 ]] \
785 && local_error="is not set when it should be." \
786 || local_error="should not be set. But it is."
787 local_error="CONFIG_${config}:\t ${local_error}"
788 fi
789 if [[ ${die} == 0 ]]; then
790 ${report_func} " ${local_error}"
791 soft_errors_count=$[soft_errors_count + 1]
792 else
793 ${report_func} " ${local_error}"
794 hard_errors_count=$[hard_errors_count + 1]
795 fi
438 fi 796 fi
439 done 797 done
440 798
441 if [[ ${error} > 0 ]]; then 799 if [[ ${hard_errors_count} > 0 ]]; then
442 eerror "Please check to make sure these options are set correctly." 800 eerror "Please check to make sure these options are set correctly."
443 eerror "Failure to do so may cause unexpected problems." 801 eerror "Failure to do so may cause unexpected problems."
444 if [[ ${die} == 1 ]]; then
445 eerror "Once you have satisfied these options, please try merging" 802 eerror "Once you have satisfied these options, please try merging"
446 eerror "this package again." 803 eerror "this package again."
804 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
447 die "Incorrect kernel configuration options" 805 die "Incorrect kernel configuration options"
806 elif [[ ${soft_errors_count} > 0 ]]; then
807 ewarn "Please check to make sure these options are set correctly."
808 ewarn "Failure to do so may cause unexpected problems."
809 else
810 eend 0
448 fi 811 fi
449 fi 812 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
450} 813}
451 814
452check_zlibinflate() { 815check_zlibinflate() {
453 # if we haven't determined the version yet, we need too. 816 # if we haven't determined the version yet, we need to
817 require_configured_kernel
454 get_version; 818 get_version
455 819
456 # although I restructured this code - I really really really dont support it! 820 # although I restructured this code - I really really really dont support it!
457 821
458 # bug #27882 - zlib routines are only linked into the kernel 822 # bug #27882 - zlib routines are only linked into the kernel
459 # if something compiled into the kernel calls them 823 # if something compiled into the kernel calls them
466 local DEFLATE 830 local DEFLATE
467 831
468 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 832 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
469 833
470 ebegin "checking ZLIB_INFLATE" 834 ebegin "checking ZLIB_INFLATE"
471 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 835 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
472 eend $? 836 eend $?
473 [ "$?" != 0 ] && die 837 [ "$?" != 0 ] && die
474 838
475 ebegin "checking ZLIB_DEFLATE" 839 ebegin "checking ZLIB_DEFLATE"
476 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 840 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
477 eend $? 841 eend $?
478 [ "$?" != 0 ] && die 842 [ "$?" != 0 ] && die
479 843
480 local LINENO_START 844 local LINENO_START
481 local LINENO_END 845 local LINENO_END
519} 883}
520 884
521################################ 885################################
522# Default pkg_setup 886# Default pkg_setup
523# Also used when inheriting linux-mod to force a get_version call 887# Also used when inheriting linux-mod to force a get_version call
524 888# @FUNCTION: linux-info_pkg_setup
889# @DESCRIPTION:
890# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
891# to support the options specified in CONFIG_CHECK (if not null)
525linux-info_pkg_setup() { 892linux-info_pkg_setup() {
526 get_version || die "Unable to calculate Linux Kernel version" 893 linux-info_get_any_version
894
895 if kernel_is 2 4; then
896 if [ "$( gcc-major-version )" -eq "4" ] ; then
897 echo
898 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
899 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
900 echo
901 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
902 ewarn "newer kernel that supports gcc-4."
903 echo
904 ewarn "Also be aware that bugreports about gcc-4 not working"
905 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
906 echo
907 epause 10
908 fi
909 fi
910
527 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 911 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
528} 912}

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