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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 1.98 2013/02/10 06:18:19 vapier Exp $
4# 4
5# @ECLASS: linux-info.eclass
6# @MAINTAINER:
7# kernel-misc@gentoo.org
8# @AUTHOR:
9# Original author: John Mylchreest <johnm@gentoo.org>
10# @BLURB: eclass used for accessing kernel related information
11# @DESCRIPTION:
5# Description: This eclass is used as a central eclass for accessing kernel 12# This eclass is used as a central eclass for accessing kernel
6# related information for sources already installed. 13# related information for source or binary already installed.
7# It is vital for linux-mod to function correctly, and is split 14# It is vital for linux-mod.eclass to function correctly, and is split
8# out so that any ebuild behaviour "templates" are abstracted out 15# out so that any ebuild behaviour "templates" are abstracted out
9# using additional eclasses. 16# using additional eclasses.
10# 17#
11# Maintainer: John Mylchreest <johnm@gentoo.org> 18# "kernel config" in this file means:
12# Copyright 2004 Gentoo Linux 19# The .config of the currently installed sources is used as the first
20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
13# 21#
14# Please direct your bugs to the current eclass maintainer :) 22# Before using any of the config-handling functions in this eclass, you must
23# ensure that one of the following functions has been called (in order of
24# preference), otherwise you will get bugs like #364041):
25# linux-info_pkg_setup
26# linux-info_get_any_version
27# get_version
28# get_running_version
15 29
16# A Couple of env vars are available to effect usage of this eclass 30# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 31# These are as follows:
18# 32
19# Env Var Option Description 33# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 34# @DESCRIPTION:
21# sources. 35# A string containing the directory of the target kernel sources. The default value is
36# "/usr/src/linux"
37
38# @ECLASS-VARIABLE: CONFIG_CHECK
39# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 40# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 41# proceeding with the install.
42#
43# e.g.: CONFIG_CHECK="MTRR"
44#
24# You can also check that an option doesn't exist by 45# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 46# prepending it with an exclamation mark (!).
47#
26# ie: CONFIG_CHECK="!MTRR" 48# e.g.: CONFIG_CHECK="!MTRR"
49#
27# To simply warn about a missing option, prepend a '~'. 50# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check 51# It may be combined with '!'.
52#
53# In general, most checks should be non-fatal. The only time fatal checks should
54# be used is for building kernel modules or cases that a compile will fail
55# without the option.
56#
57# This is to allow usage of binary kernels, and minimal systems without kernel
58# sources.
59
60# @ECLASS-VARIABLE: ERROR_<CFG>
61# @DESCRIPTION:
62# A string containing the error message to display when the check against CONFIG_CHECK
29# fails. <CFG> should reference the appropriate option 63# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
30# as above. ie: ERROR_MTRR="MTRR exists in the .config 64#
31# but shouldn't!!" 65# e.g.: ERROR_MTRR="MTRR exists in the .config but shouldn't!!"
32# KBUILD_OUTPUT <string> This is passed on commandline, or can be set from 66
33# the kernel makefile. This contains the directory 67# @ECLASS-VARIABLE: KBUILD_OUTPUT
68# @DESCRIPTION:
69# A string passed on commandline, or set from the kernel makefile. It contains the directory
34# which is to be used as the kernel object directory. 70# which is to be used as the kernel object directory.
35 71
36# There are also a couple of variables which are set by this, and shouldn't be 72# There are also a couple of variables which are set by this, and shouldn't be
37# set by hand. These are as follows: 73# set by hand. These are as follows:
38# 74
39# Env Var Option Description 75# @ECLASS-VARIABLE: KV_FULL
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 76# @DESCRIPTION:
41# KV_MAJOR <integer> The kernel major version. ie: 2 77# A read-only variable. It's a string containing the full kernel version. ie: 2.6.9-gentoo-johnm-r1
42# KV_MINOR <integer> The kernel minor version. ie: 6 78
43# KV_PATCH <integer> The kernel patch version. ie: 9 79# @ECLASS-VARIABLE: KV_MAJOR
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 80# @DESCRIPTION:
45# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 81# A read-only variable. It's an integer containing the kernel major version. ie: 2
46# KV_DIR <string> The kernel source directory, will be null if 82
83# @ECLASS-VARIABLE: KV_MINOR
84# @DESCRIPTION:
85# A read-only variable. It's an integer containing the kernel minor version. ie: 6
86
87# @ECLASS-VARIABLE: KV_PATCH
88# @DESCRIPTION:
89# A read-only variable. It's an integer containing the kernel patch version. ie: 9
90
91# @ECLASS-VARIABLE: KV_EXTRA
92# @DESCRIPTION:
93# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
94
95# @ECLASS-VARIABLE: KV_LOCAL
96# @DESCRIPTION:
97# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
98
99# @ECLASS-VARIABLE: KV_DIR
100# @DESCRIPTION:
101# A read-only variable. It's a string containing the kernel source directory, will be null if
47# KERNEL_DIR is invalid. 102# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 103
49# koutput is used. This should be used for referencing 104# @ECLASS-VARIABLE: KV_OUT_DIR
50# .config. 105# @DESCRIPTION:
106# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
107# KBUILD_OUTPUT is used. This should be used for referencing .config.
51 108
52# And to ensure all the weirdness with crosscompile 109# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator 110inherit toolchain-funcs versionator
54 111
55EXPORT_FUNCTIONS pkg_setup 112EXPORT_FUNCTIONS pkg_setup
56 113
57DEPEND="kernel_linux? ( virtual/linux-sources )" 114DEPEND=""
58RDEPEND="" 115RDEPEND=""
59 116
60# Overwritable environment Var's 117# Overwritable environment Var's
61# --------------------------------------- 118# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 119KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
67case ${ARCH} in 124case ${ARCH} in
68 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 125 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
69 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 126 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
70esac 127esac
71 128
72# These are legacy wrappers for toolchain-funcs. 129# @FUNCTION: set_arch_to_kernel
73# I dont like them here, but oh well. 130# @DESCRIPTION:
131# Set the env ARCH to match what the kernel expects.
74set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 132set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
133# @FUNCTION: set_arch_to_portage
134# @DESCRIPTION:
135# Set the env ARCH to match what portage expects.
75set_arch_to_portage() { export ARCH="$(tc-arch)"; } 136set_arch_to_portage() { export ARCH=$(tc-arch); }
76 137
77# qeinfo "Message" 138# qeinfo "Message"
78# ------------------- 139# -------------------
79# qeinfo is a quiet einfo call when EBUILD_PHASE 140# qeinfo is a quiet einfo call when EBUILD_PHASE
80# should not have visible output. 141# should not have visible output.
90 esac 151 esac
91 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 152 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
92} 153}
93 154
94qeinfo() { qout einfo "${@}" ; } 155qeinfo() { qout einfo "${@}" ; }
156qewarn() { qout ewarn "${@}" ; }
95qeerror() { qout eerror "${@}" ; } 157qeerror() { qout eerror "${@}" ; }
96 158
97# File Functions 159# File Functions
98# --------------------------------------- 160# ---------------------------------------
99 161
100# getfilevar accepts 2 vars as follows: 162# @FUNCTION: getfilevar
101# getfilevar <VARIABLE> <CONFIGFILE> 163# @USAGE: variable configfile
102 164# @RETURN: the value of the variable
165# @DESCRIPTION:
166# It detects the value of the variable defined in the file configfile. This is
167# done by including the configfile, and printing the variable with Make.
168# It WILL break if your makefile has missing dependencies!
103getfilevar() { 169getfilevar() {
104local ERROR workingdir basefname basedname myARCH="${ARCH}" 170 local ERROR basefname basedname myARCH="${ARCH}"
105 ERROR=0 171 ERROR=0
106 172
107 [ -z "${1}" ] && ERROR=1 173 [ -z "${1}" ] && ERROR=1
108 [ ! -f "${2}" ] && ERROR=1 174 [ ! -f "${2}" ] && ERROR=1
109 175
111 then 177 then
112 echo -e "\n" 178 echo -e "\n"
113 eerror "getfilevar requires 2 variables, with the second a valid file." 179 eerror "getfilevar requires 2 variables, with the second a valid file."
114 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 180 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
115 else 181 else
116 workingdir="${PWD}"
117 basefname="$(basename ${2})" 182 basefname="$(basename ${2})"
118 basedname="$(dirname ${2})" 183 basedname="$(dirname ${2})"
119 unset ARCH 184 unset ARCH
120 185
121 cd "${basedname}" 186 # We use nonfatal because we want the caller to take care of things #373151
122 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 187 [[ ${EAPI:-0} == [0123] ]] && nonfatal() { "$@"; }
123 make ${BUILD_FIXES} -s -f - e 2>/dev/null 188 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
124 cd "${workingdir}" 189 nonfatal emake -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
125 190
126 ARCH=${myARCH} 191 ARCH=${myARCH}
127 fi 192 fi
128} 193}
129 194
195# @FUNCTION: getfilevar_noexec
196# @USAGE: variable configfile
197# @RETURN: the value of the variable
198# @DESCRIPTION:
199# It detects the value of the variable defined in the file configfile.
200# This is done with sed matching an expression only. If the variable is defined,
201# you will run into problems. See getfilevar for those cases.
202getfilevar_noexec() {
203 local ERROR basefname basedname mycat myARCH="${ARCH}"
204 ERROR=0
205 mycat='cat'
206
207 [ -z "${1}" ] && ERROR=1
208 [ ! -f "${2}" ] && ERROR=1
209 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
210
211 if [ "${ERROR}" = 1 ]
212 then
213 echo -e "\n"
214 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
215 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
216 else
217 ${mycat} "${2}" | \
218 sed -n \
219 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
220 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
221 s,[[:space:]]*\$,,g ;
222 p
223 }"
224 fi
225}
226
227# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
228# @INTERNAL
229# @DESCRIPTION:
230# This is only set if one of the linux_config_*exists functions has been called.
231# We use it for a QA warning that the check for a config has not been performed,
232# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
233# config is available at all.
234_LINUX_CONFIG_EXISTS_DONE=
235
236linux_config_qa_check() {
237 local f="$1"
238 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
239 ewarn "QA: You called $f before any linux_config_exists!"
240 ewarn "QA: The return value of $f will NOT guaranteed later!"
241 fi
242}
243
244# @FUNCTION: linux_config_src_exists
245# @RETURN: true or false
246# @DESCRIPTION:
247# It returns true if .config exists in a build directory otherwise false
248linux_config_src_exists() {
249 export _LINUX_CONFIG_EXISTS_DONE=1
250 [[ -n ${KV_OUT_DIR} && -s ${KV_OUT_DIR}/.config ]]
251}
252
253# @FUNCTION: linux_config_bin_exists
254# @RETURN: true or false
255# @DESCRIPTION:
256# It returns true if .config exists in /proc, otherwise false
257linux_config_bin_exists() {
258 export _LINUX_CONFIG_EXISTS_DONE=1
259 [[ -s /proc/config.gz ]]
260}
261
262# @FUNCTION: linux_config_exists
263# @RETURN: true or false
264# @DESCRIPTION:
265# It returns true if .config exists otherwise false
266#
267# This function MUST be checked before using any of the linux_chkconfig_*
268# functions.
269linux_config_exists() {
270 linux_config_src_exists || linux_config_bin_exists
271}
272
273# @FUNCTION: linux_config_path
274# @DESCRIPTION:
275# Echo the name of the config file to use. If none are found,
276# then return false.
277linux_config_path() {
278 if linux_config_src_exists; then
279 echo "${KV_OUT_DIR}/.config"
280 elif linux_config_bin_exists; then
281 echo "/proc/config.gz"
282 else
283 return 1
284 fi
285}
286
287# @FUNCTION: require_configured_kernel
288# @DESCRIPTION:
289# This function verifies that the current kernel is configured (it checks against the existence of .config)
290# otherwise it dies.
291require_configured_kernel() {
292 if ! linux_config_src_exists; then
293 qeerror "Could not find a usable .config in the kernel source directory."
294 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
295 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
296 qeerror "it points to the necessary object directory so that it might find .config."
297 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
298 fi
299}
300
301# @FUNCTION: linux_chkconfig_present
302# @USAGE: option
303# @RETURN: true or false
304# @DESCRIPTION:
305# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
306# If linux_config_exists returns false, the results of this are UNDEFINED. You
307# MUST call linux_config_exists first.
130linux_chkconfig_present() { 308linux_chkconfig_present() {
131local RESULT 309 linux_config_qa_check linux_chkconfig_present
132 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 310 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == [my] ]]
133 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
134} 311}
135 312
313# @FUNCTION: linux_chkconfig_module
314# @USAGE: option
315# @RETURN: true or false
316# @DESCRIPTION:
317# It checks that CONFIG_<option>=m is present in the current kernel .config
318# If linux_config_exists returns false, the results of this are UNDEFINED. You
319# MUST call linux_config_exists first.
136linux_chkconfig_module() { 320linux_chkconfig_module() {
137local RESULT 321 linux_config_qa_check linux_chkconfig_module
138 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 322 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == m ]]
139 [ "${RESULT}" = "m" ] && return 0 || return 1
140} 323}
141 324
325# @FUNCTION: linux_chkconfig_builtin
326# @USAGE: option
327# @RETURN: true or false
328# @DESCRIPTION:
329# It checks that CONFIG_<option>=y is present in the current kernel .config
330# If linux_config_exists returns false, the results of this are UNDEFINED. You
331# MUST call linux_config_exists first.
142linux_chkconfig_builtin() { 332linux_chkconfig_builtin() {
143local RESULT 333 linux_config_qa_check linux_chkconfig_builtin
144 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 334 [[ $(getfilevar_noexec "CONFIG_$1" "$(linux_config_path)") == y ]]
145 [ "${RESULT}" = "y" ] && return 0 || return 1
146} 335}
147 336
337# @FUNCTION: linux_chkconfig_string
338# @USAGE: option
339# @RETURN: CONFIG_<option>
340# @DESCRIPTION:
341# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
342# If linux_config_exists returns false, the results of this are UNDEFINED. You
343# MUST call linux_config_exists first.
148linux_chkconfig_string() { 344linux_chkconfig_string() {
149 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 345 linux_config_qa_check linux_chkconfig_string
346 getfilevar_noexec "CONFIG_$1" "$(linux_config_path)"
150} 347}
151 348
152# Versioning Functions 349# Versioning Functions
153# --------------------------------------- 350# ---------------------------------------
154 351
155# kernel_is returns true when the version is the same as the passed version 352# @FUNCTION: kernel_is
353# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
354# @RETURN: true or false
355# @DESCRIPTION:
356# It returns true when the current kernel version satisfies the comparison against the passed version.
357# -eq is the default comparison.
156# 358#
359# @CODE
157# For Example where KV = 2.6.9 360# For Example where KV = 2.6.9
158# kernel_is 2 4 returns false 361# kernel_is 2 4 returns false
159# kernel_is 2 returns true 362# kernel_is 2 returns true
160# kernel_is 2 6 returns true 363# kernel_is 2 6 returns true
161# kernel_is 2 6 8 returns false 364# kernel_is 2 6 8 returns false
162# kernel_is 2 6 9 returns true 365# kernel_is 2 6 9 returns true
163# 366# @CODE
164# got the jist yet?
165 367
368# Note: duplicated in kernel-2.eclass
166kernel_is() { 369kernel_is() {
167 # if we haven't determined the version yet, we need too. 370 # if we haven't determined the version yet, we need to.
168 get_version; 371 linux-info_get_any_version
372
373 # Now we can continue
169 local operator test value x=0 y=0 z=0 374 local operator test value
170 375
171 case ${1} in 376 case ${1#-} in
172 lt) operator="-lt"; shift;; 377 lt) operator="-lt"; shift;;
173 gt) operator="-gt"; shift;; 378 gt) operator="-gt"; shift;;
174 le) operator="-le"; shift;; 379 le) operator="-le"; shift;;
175 ge) operator="-ge"; shift;; 380 ge) operator="-ge"; shift;;
176 eq) operator="-eq"; shift;; 381 eq) operator="-eq"; shift;;
177 *) operator="-eq";; 382 *) operator="-eq";;
178 esac 383 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.";; 384 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
193 esac
194 done
195 385
196 [ ${test} ${operator} ${value} ] && return 0 || return 1 386 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
387 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
388 [ ${test} ${operator} ${value} ]
197} 389}
198 390
199get_localversion() { 391get_localversion() {
200 local lv_list i x 392 local lv_list i x
201 393
209 done 401 done
210 x=${x/ /} 402 x=${x/ /}
211 echo ${x} 403 echo ${x}
212} 404}
213 405
406# Check if the Makefile is valid for direct parsing.
407# Check status results:
408# - PASS, use 'getfilevar' to extract values
409# - FAIL, use 'getfilevar_noexec' to extract values
410# The check may fail if:
411# - make is not present
412# - corruption exists in the kernel makefile
413get_makefile_extract_function() {
414 local a='' b='' mkfunc='getfilevar'
415 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
416 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
417 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
418 echo "${mkfunc}"
419}
420
421# internal variable, so we know to only print the warning once
422get_version_warning_done=
423
424# @FUNCTION: get_version
425# @DESCRIPTION:
426# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
427# (if KV_FULL is already set it does nothing).
428#
429# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
430#
431# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
432# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
433# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
214get_version() { 434get_version() {
215 local kbuild_output 435 local kbuild_output mkfunc tmplocal
216 436
217 # no need to execute this twice assuming KV_FULL is populated. 437 # no need to execute this twice assuming KV_FULL is populated.
218 # we can force by unsetting KV_FULL 438 # we can force by unsetting KV_FULL
219 [ -n "${KV_FULL}" ] && return 0 439 [ -n "${KV_FULL}" ] && return 0
220 440
221 # if we dont know KV_FULL, then we need too. 441 # 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 442 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
223 unset KV_DIR 443 unset KV_DIR
224 444
225 # KV_DIR will contain the full path to the sources directory we should use 445 # KV_DIR will contain the full path to the sources directory we should use
446 [ -z "${get_version_warning_done}" ] && \
226 qeinfo "Determining the location of the kernel source code" 447 qeinfo "Determining the location of the kernel source code"
227 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 448 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
228 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 449 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
229 450
230 if [ -z "${KV_DIR}" ] 451 if [ -z "${KV_DIR}" ]
231 then 452 then
453 if [ -z "${get_version_warning_done}" ]; then
454 get_version_warning_done=1
232 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 455 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
233 qeinfo "This package requires Linux sources." 456 #qeinfo "This package requires Linux sources."
234 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 457 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
235 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 458 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
236 qeinfo "(or the kernel you wish to build against)." 459 qeinfo "(or the kernel you wish to build against)."
237 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 460 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
238 else 461 else
239 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 462 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
463 fi
240 fi 464 fi
241 return 1 465 return 1
242 fi 466 fi
243 467
468 if [ -z "${get_version_warning_done}" ]; then
244 qeinfo "Found kernel source directory:" 469 qeinfo "Found kernel source directory:"
245 qeinfo " ${KV_DIR}" 470 qeinfo " ${KV_DIR}"
471 fi
246 472
247 if [ ! -s "${KV_DIR}/Makefile" ] 473 if [ ! -s "${KV_DIR}/Makefile" ]
248 then 474 then
475 if [ -z "${get_version_warning_done}" ]; then
476 get_version_warning_done=1
249 qeerror "Could not find a Makefile in the kernel source directory." 477 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" 478 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
479 fi
251 return 1 480 return 1
252 fi 481 fi
253 482
254 # OK so now we know our sources directory, but they might be using 483 # OK so now we know our sources directory, but they might be using
255 # KBUILD_OUTPUT, and we need this for .config and localversions-* 484 # KBUILD_OUTPUT, and we need this for .config and localversions-*
256 # so we better find it eh? 485 # so we better find it eh?
257 # do we pass KBUILD_OUTPUT on the CLI? 486 # do we pass KBUILD_OUTPUT on the CLI?
258 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 487 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
259 488
489 # keep track of it
490 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
491
492 # Decide the function used to extract makefile variables.
493 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
494
260 # And if we didn't pass it, we can take a nosey in the Makefile 495 # And if we didn't pass it, we can take a nosey in the Makefile
261 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 496 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
262 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 497 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
263 498
264 # And contrary to existing functions I feel we shouldn't trust the 499 # And contrary to existing functions I feel we shouldn't trust the
265 # directory name to find version information as this seems insane. 500 # directory name to find version information as this seems insane.
266 # so we parse ${KV_DIR}/Makefile 501 # so we parse ${KERNEL_MAKEFILE}
267 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 502 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
268 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 503 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
269 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 504 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
270 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 505 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
271 506
272 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 507 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
273 then 508 then
509 if [ -z "${get_version_warning_done}" ]; then
510 get_version_warning_done=1
274 qeerror "Could not detect kernel version." 511 qeerror "Could not detect kernel version."
275 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 512 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
513 fi
276 return 1 514 return 1
277 fi 515 fi
278 516
279 # and in newer versions we can also pull LOCALVERSION if it is set. 517 # and in newer versions we can also pull LOCALVERSION if it is set.
280 # but before we do this, we need to find if we use a different object directory. 518 # but before we do this, we need to find if we use a different object directory.
281 # This *WILL* break if the user is using localversions, but we assume it was 519 # This *WILL* break if the user is using localversions, but we assume it was
282 # caught before this if they are. 520 # caught before this if they are.
283 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
284 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 521 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
285 522
286 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 523 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
287 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 524 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
288 if [ -n "${KV_OUT_DIR}" ]; 525 if [ -n "${KV_OUT_DIR}" ];
289 then 526 then
290 qeinfo "Found kernel object directory:" 527 qeinfo "Found kernel object directory:"
291 qeinfo " ${KV_OUT_DIR}" 528 qeinfo " ${KV_OUT_DIR}"
292
293 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
294 fi 529 fi
295 # and if we STILL haven't got it, then we better just set it to KV_DIR 530 # and if we STILL have not got it, then we better just set it to KV_DIR
296 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 531 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
297 532
298 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 533 # Grab the kernel release from the output directory.
299 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 534 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
300 KV_LOCAL="${KV_LOCAL//\"/}" 535 # this function.
536 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
537 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
538 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
539 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
540 else
541 KV_LOCAL=
542 fi
543
544 # KV_LOCAL currently contains the full release; discard the first bits.
545 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
546
547 # If the updated local version was not changed, the tree is not prepared.
548 # Clear out KV_LOCAL in that case.
549 # TODO: this does not detect a change in the localversion part between
550 # kernel.release and the value that would be generated.
551 if [ "$KV_LOCAL" = "$tmplocal" ]; then
552 KV_LOCAL=
553 else
554 KV_LOCAL=$tmplocal
555 fi
301 556
302 # And we should set KV_FULL to the full expanded version 557 # And we should set KV_FULL to the full expanded version
303 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 558 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
304 559
305 qeinfo "Found sources for kernel version:" 560 qeinfo "Found sources for kernel version:"
306 qeinfo " ${KV_FULL}" 561 qeinfo " ${KV_FULL}"
307 562
308 if [ ! -s "${KV_OUT_DIR}/.config" ]
309 then
310 qeerror "Could not find a usable .config in the kernel source directory."
311 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
312 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
313 qeerror "it points to the necessary object directory so that it might find .config."
314 return 1
315 fi
316
317 return 0 563 return 0
318} 564}
319 565
566# @FUNCTION: get_running_version
567# @DESCRIPTION:
568# It gets the version of the current running kernel and the result is the same as get_version() if the
569# function can find the sources.
320get_running_version() { 570get_running_version() {
321 KV_FULL=$(uname -r) 571 KV_FULL=$(uname -r)
322 572
573 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
575 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
576 unset KV_FULL
577 get_version
578 return $?
323 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 579 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
324 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 580 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
325 unset KV_FULL 581 unset KV_FULL
326 get_version 582 get_version
327 return $? 583 return $?
328 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 584 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
329 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build) 585 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
330 unset KV_FULL 586 unset KV_FULL
331 get_version 587 get_version
332 return $? 588 return $?
333 else 589 else
590 # This handles a variety of weird kernel versions. Make sure to update
591 # tests/linux-info:get_running_version.sh if you want to change this.
592 local kv_full=${KV_FULL//[-+_]*}
334 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 593 KV_MAJOR=$(get_version_component_range 1 ${kv_full})
335 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 594 KV_MINOR=$(get_version_component_range 2 ${kv_full})
336 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 595 KV_PATCH=$(get_version_component_range 3 ${kv_full})
337 KV_PATCH=${KV_PATCH//-*} 596 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}${KV_PATCH:+.${KV_PATCH}}}"
338 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 597 : ${KV_PATCH:=0}
339 && KV_EXTRA="-${KV_FULL#*-}"
340 fi 598 fi
341 return 0 599 return 0
600}
601
602# This next function is named with the eclass prefix to avoid conflicts with
603# some old versionator-like eclass functions.
604
605# @FUNCTION: linux-info_get_any_version
606# @DESCRIPTION:
607# This attempts to find the version of the sources, and otherwise falls back to
608# the version of the running kernel.
609linux-info_get_any_version() {
610 get_version
611 if [[ $? -ne 0 ]]; then
612 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
613 get_running_version
614 fi
342} 615}
343 616
344 617
345# ebuild check functions 618# ebuild check functions
346# --------------------------------------- 619# ---------------------------------------
347 620
621# @FUNCTION: check_kernel_built
622# @DESCRIPTION:
623# This function verifies that the current kernel sources have been already prepared otherwise it dies.
348check_kernel_built() { 624check_kernel_built() {
349 # if we haven't determined the version yet, we need too. 625 # if we haven't determined the version yet, we need to
626 require_configured_kernel
350 get_version; 627 get_version
351 628
629 local versionh_path
630 if kernel_is -ge 3 7; then
631 versionh_path="include/generated/uapi/linux/version.h"
632 else
633 versionh_path="include/linux/version.h"
634 fi
635
352 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 636 if [ ! -f "${KV_OUT_DIR}/${versionh_path}" ]
353 then 637 then
354 eerror "These sources have not yet been prepared." 638 eerror "These sources have not yet been prepared."
355 eerror "We cannot build against an unprepared tree." 639 eerror "We cannot build against an unprepared tree."
356 eerror "To resolve this, please type the following:" 640 eerror "To resolve this, please type the following:"
357 eerror 641 eerror
362 eerror "Then please try merging this module again." 646 eerror "Then please try merging this module again."
363 die "Kernel sources need compiling first" 647 die "Kernel sources need compiling first"
364 fi 648 fi
365} 649}
366 650
651# @FUNCTION: check_modules_supported
652# @DESCRIPTION:
653# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
367check_modules_supported() { 654check_modules_supported() {
368 # if we haven't determined the version yet, we need too. 655 # if we haven't determined the version yet, we need too.
656 require_configured_kernel
369 get_version; 657 get_version
370 658
371 if ! linux_chkconfig_builtin "MODULES" 659 if ! linux_chkconfig_builtin "MODULES"; then
372 then
373 eerror "These sources do not support loading external modules." 660 eerror "These sources do not support loading external modules."
374 eerror "to be able to use this module please enable \"Loadable modules support\"" 661 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." 662 eerror "in your kernel, recompile and then try merging this module again."
376 die "No support for external modules in ${KV_FULL} config" 663 die "No support for external modules in ${KV_FULL} config"
377 fi 664 fi
378} 665}
379 666
667# @FUNCTION: check_extra_config
668# @DESCRIPTION:
669# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
670# the prefix ~ is not used) doesn't satisfy the directive.
380check_extra_config() { 671check_extra_config() {
381 local config negate error local_error i n
382 local temp_config die reworkmodulenames 672 local config negate die error reworkmodulenames
673 local soft_errors_count=0 hard_errors_count=0 config_required=0
674 # store the value of the QA check, because otherwise we won't catch usages
675 # after if check_extra_config is called AND other direct calls are done
676 # later.
677 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
383 678
384 # if we haven't determined the version yet, we need too. 679 # if we haven't determined the version yet, we need to
385 get_version; 680 linux-info_get_any_version
386 681
682 # Determine if we really need a .config. The only time when we don't need
683 # one is when all of the CONFIG_CHECK options are prefixed with "~".
684 for config in ${CONFIG_CHECK}; do
685 if [[ "${config:0:1}" != "~" ]]; then
686 config_required=1
687 break
688 fi
689 done
690
691 if [[ ${config_required} == 0 ]]; then
692 # In the case where we don't require a .config, we can now bail out
693 # if the user has no .config as there is nothing to do. Otherwise
694 # code later will cause a failure due to missing .config.
695 if ! linux_config_exists; then
696 ewarn "Unable to check for the following kernel config options due"
697 ewarn "to absence of any configured kernel sources or compiled"
698 ewarn "config:"
699 for config in ${CONFIG_CHECK}; do
700 local_error="ERROR_${config#\~}"
701 msg="${!local_error}"
702 if [[ "x${msg}" == "x" ]]; then
703 local_error="WARNING_${config#\~}"
704 msg="${!local_error}"
705 fi
706 ewarn " - ${config#\~}${msg:+ - }${msg}"
707 done
708 ewarn "You're on your own to make sure they are set if needed."
709 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
710 return 0
711 fi
712 else
713 require_configured_kernel
714 fi
715
387 einfo "Checking for suitable kernel configuration options:" 716 einfo "Checking for suitable kernel configuration options..."
717
388 for config in ${CONFIG_CHECK} 718 for config in ${CONFIG_CHECK}
389 do 719 do
390 # if we specify any fatal, ensure we honor them 720 # if we specify any fatal, ensure we honor them
391 die=1 721 die=1
392 error=0 722 error=0
393 negate=0 723 negate=0
394 reworkmodulenames=0 724 reworkmodulenames=0
395 725
396 if [[ -z ${config//\!*} ]]; then 726 if [[ ${config:0:1} == "~" ]]; then
397 negate=1 727 die=0
398 config=${config:1} 728 config=${config:1}
399 fi 729 elif [[ ${config:0:1} == "@" ]]; then
400 if [[ -z ${config/\@*} ]]; then
401 die=2 730 die=0
402 reworkmodulenames=1 731 reworkmodulenames=1
403 config=${config:1} 732 config=${config:1}
404 fi 733 fi
405 if [[ -z ${config/\~*} ]]; then 734 if [[ ${config:0:1} == "!" ]]; then
406 die=0 735 negate=1
407 config=${config:1} 736 config=${config:1}
408 fi 737 fi
409 738
410 if [[ ${negate} == 1 ]]; then 739 if [[ ${negate} == 1 ]]; then
411 linux_chkconfig_present ${config} && error=2 740 linux_chkconfig_present ${config} && error=2
412 elif [[ ${reworkmodulenames} == 1 ]]; then 741 elif [[ ${reworkmodulenames} == 1 ]]; then
413 temp_config="${config//*:}" 742 local temp_config="${config//*:}" i n
414 config="${config//:*}" 743 config="${config//:*}"
415 if linux_chkconfig_present ${config}; then 744 if linux_chkconfig_present ${config}; then
416 for i in ${MODULE_NAMES}; do 745 for i in ${MODULE_NAMES}; do
417 n="${i//${temp_config}}" 746 n="${i//${temp_config}}"
418 [[ -z ${n//\(*} ]] && \ 747 [[ -z ${n//\(*} ]] && \
422 fi 751 fi
423 else 752 else
424 linux_chkconfig_present ${config} || error=1 753 linux_chkconfig_present ${config} || error=1
425 fi 754 fi
426 755
427 if [[ ${die} == 0 ]]; then
428 ebegin "CONFIG_${config}"
429 eend ${error}
430 else
431 if [[ ${error} > 0 ]]; then 756 if [[ ${error} > 0 ]]; then
757 local report_func="eerror" local_error
432 local_error="ERROR_${config}" 758 local_error="ERROR_${config}"
759 local_error="${!local_error}"
760
761 if [[ -z "${local_error}" ]]; then
762 # using old, deprecated format.
763 local_error="${config}_ERROR"
433 local_error="${!local_error}" 764 local_error="${!local_error}"
434 765 fi
435 if [[ -z "${local_error}" ]]; then 766 if [[ ${die} == 0 && -z "${local_error}" ]]; then
436 # using old, deprecated format. 767 #soft errors can be warnings
437 local_error="${config}_ERROR" 768 local_error="WARNING_${config}"
438 local_error="${!local_error}" 769 local_error="${!local_error}"
770 if [[ -n "${local_error}" ]] ; then
771 report_func="ewarn"
439 fi 772 fi
440
441 if [[ -z "${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 " ${local_error}"
448 fi 773 fi
774
775 if [[ -z "${local_error}" ]]; then
776 [[ ${error} == 1 ]] \
777 && local_error="is not set when it should be." \
778 || local_error="should not be set. But it is."
779 local_error="CONFIG_${config}:\t ${local_error}"
780 fi
781 if [[ ${die} == 0 ]]; then
782 ${report_func} " ${local_error}"
783 soft_errors_count=$[soft_errors_count + 1]
784 else
785 ${report_func} " ${local_error}"
786 hard_errors_count=$[hard_errors_count + 1]
787 fi
449 fi 788 fi
450 done 789 done
451 790
452 if [[ ${error} > 0 ]]; then 791 if [[ ${hard_errors_count} > 0 ]]; then
453 eerror "Please check to make sure these options are set correctly." 792 eerror "Please check to make sure these options are set correctly."
454 eerror "Failure to do so may cause unexpected problems." 793 eerror "Failure to do so may cause unexpected problems."
455 if [[ ${die} == 1 ]]; then
456 eerror "Once you have satisfied these options, please try merging" 794 eerror "Once you have satisfied these options, please try merging"
457 eerror "this package again." 795 eerror "this package again."
796 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
458 die "Incorrect kernel configuration options" 797 die "Incorrect kernel configuration options"
798 elif [[ ${soft_errors_count} > 0 ]]; then
799 ewarn "Please check to make sure these options are set correctly."
800 ewarn "Failure to do so may cause unexpected problems."
801 else
802 eend 0
459 fi 803 fi
460 fi 804 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
461} 805}
462 806
463check_zlibinflate() { 807check_zlibinflate() {
464 # if we haven't determined the version yet, we need too. 808 # if we haven't determined the version yet, we need to
809 require_configured_kernel
465 get_version; 810 get_version
466 811
467 # although I restructured this code - I really really really dont support it! 812 # although I restructured this code - I really really really dont support it!
468 813
469 # bug #27882 - zlib routines are only linked into the kernel 814 # bug #27882 - zlib routines are only linked into the kernel
470 # if something compiled into the kernel calls them 815 # if something compiled into the kernel calls them
477 local DEFLATE 822 local DEFLATE
478 823
479 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 824 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
480 825
481 ebegin "checking ZLIB_INFLATE" 826 ebegin "checking ZLIB_INFLATE"
482 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 827 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
483 eend $? 828 eend $?
484 [ "$?" != 0 ] && die 829 [ "$?" != 0 ] && die
485 830
486 ebegin "checking ZLIB_DEFLATE" 831 ebegin "checking ZLIB_DEFLATE"
487 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 832 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
488 eend $? 833 eend $?
489 [ "$?" != 0 ] && die 834 [ "$?" != 0 ] && die
490 835
491 local LINENO_START 836 local LINENO_START
492 local LINENO_END 837 local LINENO_END
530} 875}
531 876
532################################ 877################################
533# Default pkg_setup 878# Default pkg_setup
534# Also used when inheriting linux-mod to force a get_version call 879# Also used when inheriting linux-mod to force a get_version call
535 880# @FUNCTION: linux-info_pkg_setup
881# @DESCRIPTION:
882# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
883# to support the options specified in CONFIG_CHECK (if not null)
536linux-info_pkg_setup() { 884linux-info_pkg_setup() {
537 get_version || die "Unable to calculate Linux Kernel version" 885 linux-info_get_any_version
886
887 if kernel_is 2 4; then
888 if [ "$( gcc-major-version )" -eq "4" ] ; then
889 echo
890 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
891 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
892 echo
893 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
894 ewarn "newer kernel that supports gcc-4."
895 echo
896 ewarn "Also be aware that bugreports about gcc-4 not working"
897 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
898 echo
899 epause 10
900 fi
901 fi
902
538 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 903 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
539} 904}

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