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Revision 1.1.1.1 Revision 1.96
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 1.96 2013/01/24 20:47:23 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
113
114DEPEND=""
115RDEPEND=""
55 116
56# Overwritable environment Var's 117# Overwritable environment Var's
57# --------------------------------------- 118# ---------------------------------------
58KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
59 120
63case ${ARCH} in 124case ${ARCH} in
64 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 125 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
65 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 126 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
66esac 127esac
67 128
68# These are legacy wrappers for toolchain-funcs. 129# @FUNCTION: set_arch_to_kernel
69# I dont like them here, but oh well. 130# @DESCRIPTION:
131# Set the env ARCH to match what the kernel expects.
70set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 132set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
133# @FUNCTION: set_arch_to_portage
134# @DESCRIPTION:
135# Set the env ARCH to match what portage expects.
71set_arch_to_portage() { export ARCH="$(tc-arch)"; } 136set_arch_to_portage() { export ARCH=$(tc-arch); }
72 137
73# qeinfo "Message" 138# qeinfo "Message"
74# ------------------- 139# -------------------
75# qeinfo is a quiet einfo call when EBUILD_PHASE 140# qeinfo is a quiet einfo call when EBUILD_PHASE
76# should not have visible output. 141# should not have visible output.
86 esac 151 esac
87 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
88} 153}
89 154
90qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
91qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
92 158
93# File Functions 159# File Functions
94# --------------------------------------- 160# ---------------------------------------
95 161
96# getfilevar accepts 2 vars as follows: 162# @FUNCTION: getfilevar
97# getfilevar <VARIABLE> <CONFIGFILE> 163# @USAGE: variable configfile
98 164# @RETURN: the value of the variable
165# @DESCRIPTION:
166# It detects the value of the variable defined in the file configfile. This is
167# done by including the configfile, and printing the variable with Make.
168# It WILL break if your makefile has missing dependencies!
99getfilevar() { 169getfilevar() {
100local ERROR workingdir basefname basedname myARCH="${ARCH}" 170 local ERROR basefname basedname myARCH="${ARCH}"
101 ERROR=0 171 ERROR=0
102 172
103 [ -z "${1}" ] && ERROR=1 173 [ -z "${1}" ] && ERROR=1
104 [ ! -f "${2}" ] && ERROR=1 174 [ ! -f "${2}" ] && ERROR=1
105 175
107 then 177 then
108 echo -e "\n" 178 echo -e "\n"
109 eerror "getfilevar requires 2 variables, with the second a valid file." 179 eerror "getfilevar requires 2 variables, with the second a valid file."
110 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 180 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
111 else 181 else
112 workingdir=${PWD}
113 basefname=$(basename ${2}) 182 basefname="$(basename ${2})"
114 basedname=$(dirname ${2}) 183 basedname="$(dirname ${2})"
115 unset ARCH 184 unset ARCH
116 185
117 cd ${basedname} 186 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
118 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 187 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
119 make ${BUILD_FIXES} -s -f - e 2>/dev/null
120 cd ${workingdir}
121 188
122 ARCH=${myARCH} 189 ARCH=${myARCH}
123 fi 190 fi
124} 191}
125 192
193# @FUNCTION: getfilevar_noexec
194# @USAGE: variable configfile
195# @RETURN: the value of the variable
196# @DESCRIPTION:
197# It detects the value of the variable defined in the file configfile.
198# This is done with sed matching an expression only. If the variable is defined,
199# you will run into problems. See getfilevar for those cases.
200getfilevar_noexec() {
201 local ERROR basefname basedname mycat myARCH="${ARCH}"
202 ERROR=0
203 mycat='cat'
204
205 [ -z "${1}" ] && ERROR=1
206 [ ! -f "${2}" ] && ERROR=1
207 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
208
209 if [ "${ERROR}" = 1 ]
210 then
211 echo -e "\n"
212 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
213 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
214 else
215 ${mycat} "${2}" | \
216 sed -n \
217 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
218 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
219 s,[[:space:]]*\$,,g ;
220 p
221 }"
222 fi
223}
224
225# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
226# @INTERNAL
227# @DESCRIPTION:
228# This is only set if one of the linux_config_*exists functions has been called.
229# We use it for a QA warning that the check for a config has not been performed,
230# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
231# config is available at all.
232_LINUX_CONFIG_EXISTS_DONE=
233
234linux_config_qa_check() {
235 local f="$1"
236 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
237 ewarn "QA: You called $f before any linux_config_exists!"
238 ewarn "QA: The return value of $f will NOT guaranteed later!"
239 fi
240}
241
242# @FUNCTION: linux_config_src_exists
243# @RETURN: true or false
244# @DESCRIPTION:
245# It returns true if .config exists in a build directory otherwise false
246linux_config_src_exists() {
247 export _LINUX_CONFIG_EXISTS_DONE=1
248 [ -s "${KV_OUT_DIR}/.config" ]
249}
250
251# @FUNCTION: linux_config_bin_exists
252# @RETURN: true or false
253# @DESCRIPTION:
254# It returns true if .config exists in /proc, otherwise false
255linux_config_bin_exists() {
256 export _LINUX_CONFIG_EXISTS_DONE=1
257 [ -s "/proc/config.gz" ]
258}
259
260# @FUNCTION: linux_config_exists
261# @RETURN: true or false
262# @DESCRIPTION:
263# It returns true if .config exists otherwise false
264#
265# This function MUST be checked before using any of the linux_chkconfig_*
266# functions.
267linux_config_exists() {
268 linux_config_src_exists || linux_config_bin_exists
269}
270
271# @FUNCTION: require_configured_kernel
272# @DESCRIPTION:
273# This function verifies that the current kernel is configured (it checks against the existence of .config)
274# otherwise it dies.
275require_configured_kernel() {
276 if ! linux_config_src_exists; then
277 qeerror "Could not find a usable .config in the kernel source directory."
278 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
279 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
280 qeerror "it points to the necessary object directory so that it might find .config."
281 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
282 fi
283}
284
285# @FUNCTION: linux_chkconfig_present
286# @USAGE: option
287# @RETURN: true or false
288# @DESCRIPTION:
289# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
290# If linux_config_exists returns false, the results of this are UNDEFINED. You
291# MUST call linux_config_exists first.
126linux_chkconfig_present() { 292linux_chkconfig_present() {
127local RESULT 293 linux_config_qa_check linux_chkconfig_present
294 local RESULT config
295 config="${KV_OUT_DIR}/.config"
296 [ ! -f "${config}" ] && config="/proc/config.gz"
128 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 297 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
129 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 298 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
130} 299}
131 300
301# @FUNCTION: linux_chkconfig_module
302# @USAGE: option
303# @RETURN: true or false
304# @DESCRIPTION:
305# It checks that CONFIG_<option>=m is present in the current kernel .config
306# If linux_config_exists returns false, the results of this are UNDEFINED. You
307# MUST call linux_config_exists first.
132linux_chkconfig_module() { 308linux_chkconfig_module() {
133local RESULT 309 linux_config_qa_check linux_chkconfig_module
310 local RESULT config
311 config="${KV_OUT_DIR}/.config"
312 [ ! -f "${config}" ] && config="/proc/config.gz"
134 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 313 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
135 [ "${RESULT}" = "m" ] && return 0 || return 1 314 [ "${RESULT}" = "m" ] && return 0 || return 1
136} 315}
137 316
317# @FUNCTION: linux_chkconfig_builtin
318# @USAGE: option
319# @RETURN: true or false
320# @DESCRIPTION:
321# It checks that CONFIG_<option>=y is present in the current kernel .config
322# If linux_config_exists returns false, the results of this are UNDEFINED. You
323# MUST call linux_config_exists first.
138linux_chkconfig_builtin() { 324linux_chkconfig_builtin() {
139local RESULT 325 linux_config_qa_check linux_chkconfig_builtin
326 local RESULT config
327 config="${KV_OUT_DIR}/.config"
328 [ ! -f "${config}" ] && config="/proc/config.gz"
140 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 329 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
141 [ "${RESULT}" = "y" ] && return 0 || return 1 330 [ "${RESULT}" = "y" ] && return 0 || return 1
142} 331}
143 332
333# @FUNCTION: linux_chkconfig_string
334# @USAGE: option
335# @RETURN: CONFIG_<option>
336# @DESCRIPTION:
337# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
338# If linux_config_exists returns false, the results of this are UNDEFINED. You
339# MUST call linux_config_exists first.
144linux_chkconfig_string() { 340linux_chkconfig_string() {
341 linux_config_qa_check linux_chkconfig_string
342 local config
343 config="${KV_OUT_DIR}/.config"
344 [ ! -f "${config}" ] && config="/proc/config.gz"
145 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 345 getfilevar_noexec "CONFIG_${1}" "${config}"
146} 346}
147 347
148# Versioning Functions 348# Versioning Functions
149# --------------------------------------- 349# ---------------------------------------
150 350
151# kernel_is returns true when the version is the same as the passed version 351# @FUNCTION: kernel_is
352# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
353# @RETURN: true or false
354# @DESCRIPTION:
355# It returns true when the current kernel version satisfies the comparison against the passed version.
356# -eq is the default comparison.
152# 357#
358# @CODE
153# For Example where KV = 2.6.9 359# For Example where KV = 2.6.9
154# kernel_is 2 4 returns false 360# kernel_is 2 4 returns false
155# kernel_is 2 returns true 361# kernel_is 2 returns true
156# kernel_is 2 6 returns true 362# kernel_is 2 6 returns true
157# kernel_is 2 6 8 returns false 363# kernel_is 2 6 8 returns false
158# kernel_is 2 6 9 returns true 364# kernel_is 2 6 9 returns true
159# 365# @CODE
160# got the jist yet?
161 366
367# Note: duplicated in kernel-2.eclass
162kernel_is() { 368kernel_is() {
163 # if we haven't determined the version yet, we need too. 369 # if we haven't determined the version yet, we need to.
164 get_version; 370 linux-info_get_any_version
371
372 # Now we can continue
165 local operator test value x=0 y=0 z=0 373 local operator test value
166 374
167 case ${1} in 375 case ${1#-} in
168 lt) operator="-lt"; shift;; 376 lt) operator="-lt"; shift;;
169 gt) operator="-gt"; shift;; 377 gt) operator="-gt"; shift;;
170 le) operator="-le"; shift;; 378 le) operator="-le"; shift;;
171 ge) operator="-ge"; shift;; 379 ge) operator="-ge"; shift;;
172 eq) operator="-eq"; shift;; 380 eq) operator="-eq"; shift;;
173 *) operator="-eq";; 381 *) operator="-eq";;
174 esac 382 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.";; 383 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
189 esac
190 done
191 384
192 [ ${test} ${operator} ${value} ] && return 0 || return 1 385 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
386 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
387 [ ${test} ${operator} ${value} ]
193} 388}
194 389
195get_localversion() { 390get_localversion() {
196 local lv_list i x 391 local lv_list i x
197 392
205 done 400 done
206 x=${x/ /} 401 x=${x/ /}
207 echo ${x} 402 echo ${x}
208} 403}
209 404
405# Check if the Makefile is valid for direct parsing.
406# Check status results:
407# - PASS, use 'getfilevar' to extract values
408# - FAIL, use 'getfilevar_noexec' to extract values
409# The check may fail if:
410# - make is not present
411# - corruption exists in the kernel makefile
412get_makefile_extract_function() {
413 local a='' b='' mkfunc='getfilevar'
414 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
415 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
416 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
417 echo "${mkfunc}"
418}
419
420# internal variable, so we know to only print the warning once
421get_version_warning_done=
422
423# @FUNCTION: get_version
424# @DESCRIPTION:
425# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
426# (if KV_FULL is already set it does nothing).
427#
428# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
429#
430# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
431# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
432# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
210get_version() { 433get_version() {
211 local kbuild_output 434 local kbuild_output mkfunc tmplocal
212 435
213 # no need to execute this twice assuming KV_FULL is populated. 436 # no need to execute this twice assuming KV_FULL is populated.
214 # we can force by unsetting KV_FULL 437 # we can force by unsetting KV_FULL
215 [ -n "${KV_FULL}" ] && return 0 438 [ -n "${KV_FULL}" ] && return 0
216 439
217 # if we dont know KV_FULL, then we need too. 440 # 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 441 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
219 unset KV_DIR 442 unset KV_DIR
220 443
221 # KV_DIR will contain the full path to the sources directory we should use 444 # KV_DIR will contain the full path to the sources directory we should use
445 [ -z "${get_version_warning_done}" ] && \
222 qeinfo "Determining the location of the kernel source code" 446 qeinfo "Determining the location of the kernel source code"
223 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 447 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
224 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 448 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
225 449
226 if [ -z "${KV_DIR}" ] 450 if [ -z "${KV_DIR}" ]
227 then 451 then
452 if [ -z "${get_version_warning_done}" ]; then
453 get_version_warning_done=1
228 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 454 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
229 qeinfo "This package requires Linux sources." 455 #qeinfo "This package requires Linux sources."
230 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 456 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
231 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 457 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
232 qeinfo "(or the kernel you wish to build against)." 458 qeinfo "(or the kernel you wish to build against)."
233 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 459 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
234 else 460 else
235 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 461 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
462 fi
236 fi 463 fi
237 return 1 464 return 1
238 fi 465 fi
239 466
467 if [ -z "${get_version_warning_done}" ]; then
240 qeinfo "Found kernel source directory:" 468 qeinfo "Found kernel source directory:"
241 qeinfo " ${KV_DIR}" 469 qeinfo " ${KV_DIR}"
470 fi
242 471
243 if [ ! -s "${KV_DIR}/Makefile" ] 472 if [ ! -s "${KV_DIR}/Makefile" ]
244 then 473 then
474 if [ -z "${get_version_warning_done}" ]; then
475 get_version_warning_done=1
245 qeerror "Could not find a Makefile in the kernel source directory." 476 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" 477 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
478 fi
247 return 1 479 return 1
248 fi 480 fi
249 481
250 # OK so now we know our sources directory, but they might be using 482 # OK so now we know our sources directory, but they might be using
251 # KBUILD_OUTPUT, and we need this for .config and localversions-* 483 # KBUILD_OUTPUT, and we need this for .config and localversions-*
252 # so we better find it eh? 484 # so we better find it eh?
253 # do we pass KBUILD_OUTPUT on the CLI? 485 # do we pass KBUILD_OUTPUT on the CLI?
254 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 486 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
255 487
488 # keep track of it
489 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
490
491 # Decide the function used to extract makefile variables.
492 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
493
256 # And if we didn't pass it, we can take a nosey in the Makefile 494 # And if we didn't pass it, we can take a nosey in the Makefile
257 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 495 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
258 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 496 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
259 497
260 # And contrary to existing functions I feel we shouldn't trust the 498 # And contrary to existing functions I feel we shouldn't trust the
261 # directory name to find version information as this seems insane. 499 # directory name to find version information as this seems insane.
262 # so we parse ${KV_DIR}/Makefile 500 # so we parse ${KERNEL_MAKEFILE}
263 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 501 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
264 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 502 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
265 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 503 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
266 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 504 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
267 505
268 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 506 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
269 then 507 then
508 if [ -z "${get_version_warning_done}" ]; then
509 get_version_warning_done=1
270 qeerror "Could not detect kernel version." 510 qeerror "Could not detect kernel version."
271 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 511 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
512 fi
272 return 1 513 return 1
273 fi 514 fi
274 515
275 # and in newer versions we can also pull LOCALVERSION if it is set. 516 # and in newer versions we can also pull LOCALVERSION if it is set.
276 # but before we do this, we need to find if we use a different object directory. 517 # but before we do this, we need to find if we use a different object directory.
277 # This *WILL* break if the user is using localversions, but we assume it was 518 # This *WILL* break if the user is using localversions, but we assume it was
278 # caught before this if they are. 519 # caught before this if they are.
279 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
280 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 520 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
281 521
282 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 522 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
283 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 523 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
284 if [ -n "${KV_OUT_DIR}" ]; 524 if [ -n "${KV_OUT_DIR}" ];
285 then 525 then
286 qeinfo "Found kernel object directory:" 526 qeinfo "Found kernel object directory:"
287 qeinfo " ${KV_OUT_DIR}" 527 qeinfo " ${KV_OUT_DIR}"
288
289 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
290 fi 528 fi
291 # and if we STILL haven't got it, then we better just set it to KV_DIR 529 # and if we STILL have not got it, then we better just set it to KV_DIR
292 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 530 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
293 531
294 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_OUT_DIR})" 532 # Grab the kernel release from the output directory.
295 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 533 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
296 KV_LOCAL="${KV_LOCAL//\"/}" 534 # this function.
535 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
536 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
537 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
538 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
539 else
540 KV_LOCAL=
541 fi
542
543 # KV_LOCAL currently contains the full release; discard the first bits.
544 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
545
546 # If the updated local version was not changed, the tree is not prepared.
547 # Clear out KV_LOCAL in that case.
548 # TODO: this does not detect a change in the localversion part between
549 # kernel.release and the value that would be generated.
550 if [ "$KV_LOCAL" = "$tmplocal" ]; then
551 KV_LOCAL=
552 else
553 KV_LOCAL=$tmplocal
554 fi
297 555
298 # And we should set KV_FULL to the full expanded version 556 # And we should set KV_FULL to the full expanded version
299 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 557 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
300 558
301 qeinfo "Found sources for kernel version:" 559 qeinfo "Found sources for kernel version:"
302 qeinfo " ${KV_FULL}" 560 qeinfo " ${KV_FULL}"
303 561
304 if [ ! -s "${KV_OUT_DIR}/.config" ]
305 then
306 qeerror "Could not find a usable .config in the kernel source directory."
307 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
308 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
309 qeerror "it points to the necessary object directory so that it might find .config."
310 return 1
311 fi
312
313 return 0 562 return 0
314} 563}
315 564
565# @FUNCTION: get_running_version
566# @DESCRIPTION:
567# It gets the version of the current running kernel and the result is the same as get_version() if the
568# function can find the sources.
316get_running_version() { 569get_running_version() {
317 KV_FULL=$(uname -r) 570 KV_FULL=$(uname -r)
318 571
572 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
573 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
574 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
575 unset KV_FULL
576 get_version
577 return $?
319 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
320 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 579 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
321 unset KV_FULL 580 unset KV_FULL
322 get_version 581 get_version
323 return $? 582 return $?
324 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 583 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
325 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 584 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
326 unset KV_FULL 585 unset KV_FULL
327 get_version 586 get_version
328 return $? 587 return $?
329 else 588 else
589 # This handles a variety of weird kernel versions. Make sure to update
590 # tests/linux-info:get_running_version.sh if you want to change this.
591 local kv_full=${KV_FULL//[-+_]*}
330 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 592 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
331 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 593 KV_MINOR=$(get_version_component_range 2 ${kv_full})
332 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 594 KV_PATCH=$(get_version_component_range 3 ${kv_full})
333 KV_PATCH=${KV_PATCH//-*} 595 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
334 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 596 : ${KV_PATCH:=0}
335 && KV_EXTRA="-${KV_FULL#*-}"
336 fi 597 fi
337 return 0 598 return 0
599}
600
601# This next function is named with the eclass prefix to avoid conflicts with
602# some old versionator-like eclass functions.
603
604# @FUNCTION: linux-info_get_any_version
605# @DESCRIPTION:
606# This attempts to find the version of the sources, and otherwise falls back to
607# the version of the running kernel.
608linux-info_get_any_version() {
609 get_version
610 if [[ $? -ne 0 ]]; then
611 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
612 get_running_version
613 fi
338} 614}
339 615
340 616
341# ebuild check functions 617# ebuild check functions
342# --------------------------------------- 618# ---------------------------------------
343 619
620# @FUNCTION: check_kernel_built
621# @DESCRIPTION:
622# This function verifies that the current kernel sources have been already prepared otherwise it dies.
344check_kernel_built() { 623check_kernel_built() {
345 # if we haven't determined the version yet, we need too. 624 # if we haven't determined the version yet, we need to
625 require_configured_kernel
346 get_version; 626 get_version
347 627
628 local versionh_path
629 if kernel_is -ge 3 7; then
630 versionh_path="include/generated/uapi/linux/version.h"
631 else
632 versionh_path="include/linux/version.h"
633 fi
634
348 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 635 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
349 then 636 then
350 eerror "These sources have not yet been prepared." 637 eerror "These sources have not yet been prepared."
351 eerror "We cannot build against an unprepared tree." 638 eerror "We cannot build against an unprepared tree."
352 eerror "To resolve this, please type the following:" 639 eerror "To resolve this, please type the following:"
353 eerror 640 eerror
358 eerror "Then please try merging this module again." 645 eerror "Then please try merging this module again."
359 die "Kernel sources need compiling first" 646 die "Kernel sources need compiling first"
360 fi 647 fi
361} 648}
362 649
650# @FUNCTION: check_modules_supported
651# @DESCRIPTION:
652# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
363check_modules_supported() { 653check_modules_supported() {
364 # if we haven't determined the version yet, we need too. 654 # if we haven't determined the version yet, we need too.
655 require_configured_kernel
365 get_version; 656 get_version
366 657
367 if ! linux_chkconfig_builtin "MODULES" 658 if ! linux_chkconfig_builtin "MODULES"; then
368 then
369 eerror "These sources do not support loading external modules." 659 eerror "These sources do not support loading external modules."
370 eerror "to be able to use this module please enable \"Loadable modules support\"" 660 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." 661 eerror "in your kernel, recompile and then try merging this module again."
372 die "No support for external modules in ${KV_FULL} config" 662 die "No support for external modules in ${KV_FULL} config"
373 fi 663 fi
374} 664}
375 665
666# @FUNCTION: check_extra_config
667# @DESCRIPTION:
668# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
669# the prefix ~ is not used) doesn't satisfy the directive.
376check_extra_config() { 670check_extra_config() {
377 local config negate error local_error i n
378 local temp_config die reworkmodulenames 671 local config negate die error reworkmodulenames
672 local soft_errors_count=0 hard_errors_count=0 config_required=0
673 # store the value of the QA check, because otherwise we won't catch usages
674 # after if check_extra_config is called AND other direct calls are done
675 # later.
676 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
379 677
380 # if we haven't determined the version yet, we need too. 678 # if we haven't determined the version yet, we need to
381 get_version; 679 linux-info_get_any_version
382 680
681 # Determine if we really need a .config. The only time when we don't need
682 # one is when all of the CONFIG_CHECK options are prefixed with "~".
683 for config in ${CONFIG_CHECK}; do
684 if [[ "${config:0:1}" != "~" ]]; then
685 config_required=1
686 break
687 fi
688 done
689
690 if [[ ${config_required} == 0 ]]; then
691 # In the case where we don't require a .config, we can now bail out
692 # if the user has no .config as there is nothing to do. Otherwise
693 # code later will cause a failure due to missing .config.
694 if ! linux_config_exists; then
695 ewarn "Unable to check for the following kernel config options due"
696 ewarn "to absence of any configured kernel sources or compiled"
697 ewarn "config:"
698 for config in ${CONFIG_CHECK}; do
699 local_error="ERROR_${config#\~}"
700 msg="${!local_error}"
701 if [[ "x${msg}" == "x" ]]; then
702 local_error="WARNING_${config#\~}"
703 msg="${!local_error}"
704 fi
705 ewarn " - ${config#\~}${msg:+ - }${msg}"
706 done
707 ewarn "You're on your own to make sure they are set if needed."
708 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
709 return 0
710 fi
711 else
712 require_configured_kernel
713 fi
714
383 einfo "Checking for suitable kernel configuration options:" 715 einfo "Checking for suitable kernel configuration options..."
716
384 for config in ${CONFIG_CHECK} 717 for config in ${CONFIG_CHECK}
385 do 718 do
386 # if we specify any fatal, ensure we honor them 719 # if we specify any fatal, ensure we honor them
387 die=1 720 die=1
388 error=0 721 error=0
389 negate=0 722 negate=0
390 reworkmodulenames=0 723 reworkmodulenames=0
391 724
392 if [[ -z ${config//\!*} ]]; then 725 if [[ ${config:0:1} == "~" ]]; then
393 negate=1 726 die=0
394 config=${config:1} 727 config=${config:1}
395 fi 728 elif [[ ${config:0:1} == "@" ]]; then
396 if [[ -z ${config/\@*} ]]; then
397 die=2 729 die=0
398 reworkmodulenames=1 730 reworkmodulenames=1
399 config=${config:1} 731 config=${config:1}
400 fi 732 fi
401 if [[ -z ${config/\~*} ]]; then 733 if [[ ${config:0:1} == "!" ]]; then
402 die=0 734 negate=1
403 config=${config:1} 735 config=${config:1}
404 fi 736 fi
405 737
406 if [[ ${negate} == 1 ]]; then 738 if [[ ${negate} == 1 ]]; then
407 linux_chkconfig_present ${config} && error=2 739 linux_chkconfig_present ${config} && error=2
408 elif [[ ${reworkmodulenames} == 1 ]]; then 740 elif [[ ${reworkmodulenames} == 1 ]]; then
409 temp_config="${config//*:}" 741 local temp_config="${config//*:}" i n
410 config="${config//:*}" 742 config="${config//:*}"
411 if linux_chkconfig_present ${config}; then 743 if linux_chkconfig_present ${config}; then
412 for i in ${MODULE_NAMES}; do 744 for i in ${MODULE_NAMES}; do
413 n="${i//${temp_config}}" 745 n="${i//${temp_config}}"
414 [[ -z ${n//(*} ]] && \ 746 [[ -z ${n//\(*} ]] && \
415 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}" 747 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
416 done 748 done
417 error=2 749 error=2
418 fi 750 fi
419 else 751 else
420 linux_chkconfig_present ${config} || error=1 752 linux_chkconfig_present ${config} || error=1
421 fi 753 fi
422 754
423 if [[ ${die} == 0 ]]; then
424 ebegin "CONFIG_${config}"
425 eend ${error}
426 else
427 if [[ ${error} > 0 ]]; then 755 if [[ ${error} > 0 ]]; then
756 local report_func="eerror" local_error
757 local_error="ERROR_${config}"
758 local_error="${!local_error}"
759
760 if [[ -z "${local_error}" ]]; then
761 # using old, deprecated format.
428 local_error="${config}_ERROR" 762 local_error="${config}_ERROR"
429 local_error="${!local_error}" 763 local_error="${!local_error}"
764 fi
765 if [[ ${die} == 0 && -z "${local_error}" ]]; then
766 #soft errors can be warnings
767 local_error="WARNING_${config}"
768 local_error="${!local_error}"
430 if [[ -z "${local_error}" ]]; then 769 if [[ -n "${local_error}" ]] ; then
431 [[ ${error} == 1 ]] \ 770 report_func="ewarn"
432 && local_error="is not set when it should be." \
433 || local_error="should not be set. But it is."
434 local_error="CONFIG_${config}:\t ${local_error}"
435 fi 771 fi
436 eerror " ${local_error}"
437 fi 772 fi
773
774 if [[ -z "${local_error}" ]]; then
775 [[ ${error} == 1 ]] \
776 && local_error="is not set when it should be." \
777 || local_error="should not be set. But it is."
778 local_error="CONFIG_${config}:\t ${local_error}"
779 fi
780 if [[ ${die} == 0 ]]; then
781 ${report_func} " ${local_error}"
782 soft_errors_count=$[soft_errors_count + 1]
783 else
784 ${report_func} " ${local_error}"
785 hard_errors_count=$[hard_errors_count + 1]
786 fi
438 fi 787 fi
439 done 788 done
440 789
441 if [[ ${error} > 0 ]]; then 790 if [[ ${hard_errors_count} > 0 ]]; then
442 eerror "Please check to make sure these options are set correctly." 791 eerror "Please check to make sure these options are set correctly."
443 eerror "Failure to do so may cause unexpected problems." 792 eerror "Failure to do so may cause unexpected problems."
444 if [[ ${die} == 1 ]]; then
445 eerror "Once you have satisfied these options, please try merging" 793 eerror "Once you have satisfied these options, please try merging"
446 eerror "this package again." 794 eerror "this package again."
795 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
447 die "Incorrect kernel configuration options" 796 die "Incorrect kernel configuration options"
797 elif [[ ${soft_errors_count} > 0 ]]; then
798 ewarn "Please check to make sure these options are set correctly."
799 ewarn "Failure to do so may cause unexpected problems."
800 else
801 eend 0
448 fi 802 fi
449 fi 803 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
450} 804}
451 805
452check_zlibinflate() { 806check_zlibinflate() {
453 # if we haven't determined the version yet, we need too. 807 # if we haven't determined the version yet, we need to
808 require_configured_kernel
454 get_version; 809 get_version
455 810
456 # although I restructured this code - I really really really dont support it! 811 # although I restructured this code - I really really really dont support it!
457 812
458 # bug #27882 - zlib routines are only linked into the kernel 813 # bug #27882 - zlib routines are only linked into the kernel
459 # if something compiled into the kernel calls them 814 # if something compiled into the kernel calls them
466 local DEFLATE 821 local DEFLATE
467 822
468 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 823 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
469 824
470 ebegin "checking ZLIB_INFLATE" 825 ebegin "checking ZLIB_INFLATE"
471 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 826 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
472 eend $? 827 eend $?
473 [ "$?" != 0 ] && die 828 [ "$?" != 0 ] && die
474 829
475 ebegin "checking ZLIB_DEFLATE" 830 ebegin "checking ZLIB_DEFLATE"
476 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 831 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
477 eend $? 832 eend $?
478 [ "$?" != 0 ] && die 833 [ "$?" != 0 ] && die
479 834
480 local LINENO_START 835 local LINENO_START
481 local LINENO_END 836 local LINENO_END
519} 874}
520 875
521################################ 876################################
522# Default pkg_setup 877# Default pkg_setup
523# Also used when inheriting linux-mod to force a get_version call 878# Also used when inheriting linux-mod to force a get_version call
524 879# @FUNCTION: linux-info_pkg_setup
880# @DESCRIPTION:
881# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
882# to support the options specified in CONFIG_CHECK (if not null)
525linux-info_pkg_setup() { 883linux-info_pkg_setup() {
526 get_version || die "Unable to calculate Linux Kernel version" 884 linux-info_get_any_version
885
886 if kernel_is 2 4; then
887 if [ "$( gcc-major-version )" -eq "4" ] ; then
888 echo
889 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
890 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
891 echo
892 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
893 ewarn "newer kernel that supports gcc-4."
894 echo
895 ewarn "Also be aware that bugreports about gcc-4 not working"
896 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
897 echo
898 epause 10
899 fi
900 fi
901
527 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 902 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
528} 903}

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