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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2011 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 1.22 2005/02/01 09:13:47 johnm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.91 2011/12/12 22:01:37 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
13# 20# preference, with a fall-back to bundled config (/proc/config.gz) if available.
14# Please direct your bugs to the current eclass maintainer :)
15 21
16# A Couple of env vars are available to effect usage of this eclass 22# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 23# These are as follows:
18# 24
19# Env Var Option Description 25# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 26# @DESCRIPTION:
21# sources. 27# A string containing the directory of the target kernel sources. The default value is
28# "/usr/src/linux"
29
30# @ECLASS-VARIABLE: CONFIG_CHECK
31# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 32# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 33# proceeding with the install.
34#
35# e.g.: CONFIG_CHECK="MTRR"
36#
24# You can also check that an option doesn't exist by 37# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 38# prepending it with an exclamation mark (!).
39#
26# ie: CONFIG_CHECK="!MTRR" 40# e.g.: CONFIG_CHECK="!MTRR"
27# ERROR_CFG <string> The error message to display when the above check 41#
42# To simply warn about a missing option, prepend a '~'.
43# It may be combined with '!'.
44#
45# In general, most checks should be non-fatal. The only time fatal checks should
46# be used is for building kernel modules or cases that a compile will fail
47# without the option.
48#
49# This is to allow usage of binary kernels, and minimal systems without kernel
50# sources.
51
52# @ECLASS-VARIABLE: ERROR_<CFG>
53# @DESCRIPTION:
54# A string containing the error message to display when the check against CONFIG_CHECK
28# fails. <CFG> should reference the appropriate option 55# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
29# as above. ie: MTRR_ERROR="MTRR exists in the .config 56#
30# but shouldn't!!" 57# 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 58
32# the kernel makefile. This contains the directory 59# @ECLASS-VARIABLE: KBUILD_OUTPUT
60# @DESCRIPTION:
61# 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. 62# which is to be used as the kernel object directory.
34 63
35# There are also a couple of variables which are set by this, and shouldn't be 64# There are also a couple of variables which are set by this, and shouldn't be
36# set by hand. These are as follows: 65# set by hand. These are as follows:
37# 66
38# Env Var Option Description 67# @ECLASS-VARIABLE: KV_FULL
39# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 68# @DESCRIPTION:
40# KV_MAJOR <integer> The kernel major version. ie: 2 69# 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 70
42# KV_PATCH <integer> The kernel patch version. ie: 9 71# @ECLASS-VARIABLE: KV_MAJOR
43# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 72# @DESCRIPTION:
44# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 73# 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 74
75# @ECLASS-VARIABLE: KV_MINOR
76# @DESCRIPTION:
77# A read-only variable. It's an integer containing the kernel minor version. ie: 6
78
79# @ECLASS-VARIABLE: KV_PATCH
80# @DESCRIPTION:
81# A read-only variable. It's an integer containing the kernel patch version. ie: 9
82
83# @ECLASS-VARIABLE: KV_EXTRA
84# @DESCRIPTION:
85# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
86
87# @ECLASS-VARIABLE: KV_LOCAL
88# @DESCRIPTION:
89# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
90
91# @ECLASS-VARIABLE: KV_DIR
92# @DESCRIPTION:
93# A read-only variable. It's a string containing the kernel source directory, will be null if
46# KERNEL_DIR is invalid. 94# KERNEL_DIR is invalid.
47# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 95
48# koutput is used. This should be used for referencing 96# @ECLASS-VARIABLE: KV_OUT_DIR
49# .config. 97# @DESCRIPTION:
98# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
99# KBUILD_OUTPUT is used. This should be used for referencing .config.
50 100
51# And to ensure all the weirdness with crosscompile 101# And to ensure all the weirdness with crosscompile
52inherit toolchain-funcs 102inherit toolchain-funcs versionator
53 103
54ECLASS=linux-info
55INHERITED="$INHERITED $ECLASS"
56EXPORT_FUNCTIONS pkg_setup 104EXPORT_FUNCTIONS pkg_setup
105
106DEPEND=""
107RDEPEND=""
57 108
58# Overwritable environment Var's 109# Overwritable environment Var's
59# --------------------------------------- 110# ---------------------------------------
60KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 111KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
61 112
62 113
63# Bug fixes 114# Bug fixes
64# fix to bug #75034 115# fix to bug #75034
65case ${ARCH} in 116case ${ARCH} in
66 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 117 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
67 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";; 118 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
68esac 119esac
69 120
70# These are legacy wrappers for toolchain-funcs. 121# @FUNCTION: set_arch_to_kernel
71# I dont like them here, but oh well. 122# @DESCRIPTION:
123# Set the env ARCH to match what the kernel expects.
72set_arch_to_kernel() { export ARCH="$(tc-arch-kernel)"; } 124set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
125# @FUNCTION: set_arch_to_portage
126# @DESCRIPTION:
127# Set the env ARCH to match what portage expects.
73set_arch_to_portage() { export ARCH="$(tc-arch)"; } 128set_arch_to_portage() { export ARCH=$(tc-arch); }
74 129
75# qeinfo "Message" 130# qeinfo "Message"
76# ------------------- 131# -------------------
77# qeinfo is a quiet einfo call when EBUILD_PHASE 132# qeinfo is a quiet einfo call when EBUILD_PHASE
78# should not have visible output. 133# should not have visible output.
79qout() { 134qout() {
80 local outputmsg type 135 local outputmsg type
81 type=${1} 136 type=${1}
82 shift 137 shift
83 outputmsg="${@}" 138 outputmsg="${@}"
84 case "${EBUILD_PHASE}" in 139 case "${EBUILD_PHASE}" in
85 depend) unset outputmsg;; 140 depend) unset outputmsg;;
86 clean) unset outputmsg;; 141 clean) unset outputmsg;;
87 preinst) unset outputmsg;; 142 preinst) unset outputmsg;;
88 esac 143 esac
89 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 144 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
90} 145}
91 146
92qeinfo() { qout einfo "${@}" ; } 147qeinfo() { qout einfo "${@}" ; }
148qewarn() { qout ewarn "${@}" ; }
93qeerror() { qout eerror "${@}" ; } 149qeerror() { qout eerror "${@}" ; }
94 150
95# File Functions 151# File Functions
96# --------------------------------------- 152# ---------------------------------------
97 153
98# getfilevar accepts 2 vars as follows: 154# @FUNCTION: getfilevar
99# getfilevar <VARIABLE> <CONFIGFILE> 155# @USAGE: variable configfile
100 156# @RETURN: the value of the variable
157# @DESCRIPTION:
158# It detects the value of the variable defined in the file configfile. This is
159# done by including the configfile, and printing the variable with Make.
160# It WILL break if your makefile has missing dependencies!
101getfilevar() { 161getfilevar() {
102local ERROR workingdir basefname basedname myARCH="${ARCH}" 162local ERROR basefname basedname myARCH="${ARCH}"
103 ERROR=0 163 ERROR=0
104 164
105 [ -z "${1}" ] && ERROR=1 165 [ -z "${1}" ] && ERROR=1
106 [ ! -f "${2}" ] && ERROR=1 166 [ ! -f "${2}" ] && ERROR=1
107 167
108 if [ "${ERROR}" = 1 ] 168 if [ "${ERROR}" = 1 ]
109 then 169 then
110 ebeep
111 echo -e "\n" 170 echo -e "\n"
112 eerror "getfilevar requires 2 variables, with the second a valid file." 171 eerror "getfilevar requires 2 variables, with the second a valid file."
113 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 172 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
114 else 173 else
115 workingdir=${PWD}
116 basefname=$(basename ${2}) 174 basefname="$(basename ${2})"
117 basedname=$(dirname ${2}) 175 basedname="$(dirname ${2})"
118 unset ARCH 176 unset ARCH
119 177
120 cd ${basedname} 178 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
121 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \ 179 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
122 make ${BUILD_FIXES} -f - e 2>/dev/null
123 cd ${workingdir}
124 180
125 ARCH=${myARCH} 181 ARCH=${myARCH}
126 fi 182 fi
127} 183}
128 184
185# @FUNCTION: getfilevar_noexec
186# @USAGE: variable configfile
187# @RETURN: the value of the variable
188# @DESCRIPTION:
189# It detects the value of the variable defined in the file configfile.
190# This is done with sed matching an expression only. If the variable is defined,
191# you will run into problems. See getfilevar for those cases.
192getfilevar_noexec() {
193 local ERROR basefname basedname mycat myARCH="${ARCH}"
194 ERROR=0
195 mycat='cat'
196
197 [ -z "${1}" ] && ERROR=1
198 [ ! -f "${2}" ] && ERROR=1
199 [ "${2%.gz}" != "${2}" ] && mycat='zcat'
200
201 if [ "${ERROR}" = 1 ]
202 then
203 echo -e "\n"
204 eerror "getfilevar_noexec requires 2 variables, with the second a valid file."
205 eerror " getfilevar_noexec <VARIABLE> <CONFIGFILE>"
206 else
207 ${mycat} "${2}" | \
208 sed -n \
209 -e "/^[[:space:]]*${1}[[:space:]]*:\\?=[[:space:]]*\(.*\)\$/{
210 s,^[^=]*[[:space:]]*=[[:space:]]*,,g ;
211 s,[[:space:]]*\$,,g ;
212 p
213 }"
214 fi
215}
216
217# @ECLASS-VARIABLE: _LINUX_CONFIG_EXISTS_DONE
218# @INTERNAL
219# @DESCRIPTION:
220# This is only set if one of the linux_config_*exists functions has been called.
221# We use it for a QA warning that the check for a config has not been performed,
222# as linux_chkconfig* in non-legacy mode WILL return an undefined value if no
223# config is available at all.
224_LINUX_CONFIG_EXISTS_DONE=
225
226linux_config_qa_check() {
227 local f="$1"
228 if [ -z "${_LINUX_CONFIG_EXISTS_DONE}" ]; then
229 ewarn "QA: You called $f before any linux_config_exists!"
230 ewarn "QA: The return value of $f will NOT guaranteed later!"
231 fi
232}
233
234# @FUNCTION: linux_config_src_exists
235# @RETURN: true or false
236# @DESCRIPTION:
237# It returns true if .config exists in a build directory otherwise false
238linux_config_src_exists() {
239 export _LINUX_CONFIG_EXISTS_DONE=1
240 [ -s "${KV_OUT_DIR}/.config" ]
241}
242
243# @FUNCTION: linux_config_bin_exists
244# @RETURN: true or false
245# @DESCRIPTION:
246# It returns true if .config exists in /proc, otherwise false
247linux_config_bin_exists() {
248 export _LINUX_CONFIG_EXISTS_DONE=1
249 [ -s "/proc/config.gz" ]
250}
251
252# @FUNCTION: linux_config_exists
253# @RETURN: true or false
254# @DESCRIPTION:
255# It returns true if .config exists otherwise false
256#
257# This function MUST be checked before using any of the linux_chkconfig_*
258# functions.
259linux_config_exists() {
260 linux_config_src_exists || linux_config_bin_exists
261}
262
263# @FUNCTION: require_configured_kernel
264# @DESCRIPTION:
265# This function verifies that the current kernel is configured (it checks against the existence of .config)
266# otherwise it dies.
267require_configured_kernel() {
268 if ! linux_config_src_exists; then
269 qeerror "Could not find a usable .config in the kernel source directory."
270 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
271 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
272 qeerror "it points to the necessary object directory so that it might find .config."
273 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
274 fi
275}
276
277# @FUNCTION: linux_chkconfig_present
278# @USAGE: option
279# @RETURN: true or false
280# @DESCRIPTION:
281# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
282# If linux_config_exists returns false, the results of this are UNDEFINED. You
283# MUST call linux_config_exists first.
129linux_chkconfig_present() { 284linux_chkconfig_present() {
285 linux_config_qa_check linux_chkconfig_present
130local RESULT 286 local RESULT
287 local config
288 config="${KV_OUT_DIR}/.config"
289 [ ! -f "${config}" ] && config="/proc/config.gz"
131 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 290 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
132 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 291 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
133} 292}
134 293
294# @FUNCTION: linux_chkconfig_module
295# @USAGE: option
296# @RETURN: true or false
297# @DESCRIPTION:
298# It checks that CONFIG_<option>=m is present in the current kernel .config
299# If linux_config_exists returns false, the results of this are UNDEFINED. You
300# MUST call linux_config_exists first.
135linux_chkconfig_module() { 301linux_chkconfig_module() {
302 linux_config_qa_check linux_chkconfig_module
136local RESULT 303 local RESULT
304 local config
305 config="${KV_OUT_DIR}/.config"
306 [ ! -f "${config}" ] && config="/proc/config.gz"
137 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 307 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
138 [ "${RESULT}" = "m" ] && return 0 || return 1 308 [ "${RESULT}" = "m" ] && return 0 || return 1
139} 309}
140 310
311# @FUNCTION: linux_chkconfig_builtin
312# @USAGE: option
313# @RETURN: true or false
314# @DESCRIPTION:
315# It checks that CONFIG_<option>=y is present in the current kernel .config
316# If linux_config_exists returns false, the results of this are UNDEFINED. You
317# MUST call linux_config_exists first.
141linux_chkconfig_builtin() { 318linux_chkconfig_builtin() {
319 linux_config_qa_check linux_chkconfig_builtin
142local RESULT 320 local RESULT
321 local config
322 config="${KV_OUT_DIR}/.config"
323 [ ! -f "${config}" ] && config="/proc/config.gz"
143 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 324 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
144 [ "${RESULT}" = "y" ] && return 0 || return 1 325 [ "${RESULT}" = "y" ] && return 0 || return 1
145} 326}
146 327
328# @FUNCTION: linux_chkconfig_string
329# @USAGE: option
330# @RETURN: CONFIG_<option>
331# @DESCRIPTION:
332# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
333# If linux_config_exists returns false, the results of this are UNDEFINED. You
334# MUST call linux_config_exists first.
147linux_chkconfig_string() { 335linux_chkconfig_string() {
336 linux_config_qa_check linux_chkconfig_string
337 local config
338 config="${KV_OUT_DIR}/.config"
339 [ ! -f "${config}" ] && config="/proc/config.gz"
148 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 340 getfilevar_noexec "CONFIG_${1}" "${config}"
149} 341}
150 342
151# Versioning Functions 343# Versioning Functions
152# --------------------------------------- 344# ---------------------------------------
153 345
154# kernel_is returns true when the version is the same as the passed version 346# @FUNCTION: kernel_is
347# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
348# @RETURN: true or false
349# @DESCRIPTION:
350# It returns true when the current kernel version satisfies the comparison against the passed version.
351# -eq is the default comparison.
155# 352#
353# @CODE
156# For Example where KV = 2.6.9 354# For Example where KV = 2.6.9
157# kernel_is 2 4 returns false 355# kernel_is 2 4 returns false
158# kernel_is 2 returns true 356# kernel_is 2 returns true
159# kernel_is 2 6 returns true 357# kernel_is 2 6 returns true
160# kernel_is 2 6 8 returns false 358# kernel_is 2 6 8 returns false
161# kernel_is 2 6 9 returns true 359# kernel_is 2 6 9 returns true
162# 360# @CODE
163# got the jist yet?
164 361
362# Note: duplicated in kernel-2.eclass
165kernel_is() { 363kernel_is() {
166 # if we haven't determined the version yet, we need too. 364 # if we haven't determined the version yet, we need to.
167 get_version; 365 linux-info_get_any_version
168 366
367 # Now we can continue
169 local RESULT operator test value i len 368 local operator test value
170 RESULT=0
171
172 operator="="
173 if [ "${1}" == "lt" ]
174 then
175 operator="-lt"
176 shift
177 elif [ "${1}" == "gt" ]
178 then
179 operator="-gt"
180 shift
181 elif [ "${1}" == "le" ]
182 then
183 operator="-le"
184 shift
185 elif [ "${1}" == "ge" ]
186 then
187 operator="-ge"
188 shift
189 fi
190 369
191 if [ -n "${1}" ] 370 case ${1#-} in
192 then 371 lt) operator="-lt"; shift;;
193 value="${value}${1}" 372 gt) operator="-gt"; shift;;
194 test="${test}${KV_MAJOR}" 373 le) operator="-le"; shift;;
195 fi 374 ge) operator="-ge"; shift;;
196 if [ -n "${2}" ] 375 eq) operator="-eq"; shift;;
197 then 376 *) operator="-eq";;
198 len=$[ 3 - ${#2} ] 377 esac
199 for((i=0; i<$len; i++)); do 378 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
200 value="${value}0" 379
380 : $(( test = (KV_MAJOR << 16) + (KV_MINOR << 8) + KV_PATCH ))
381 : $(( value = (${1:-${KV_MAJOR}} << 16) + (${2:-${KV_MINOR}} << 8) + ${3:-${KV_PATCH}} ))
382 [ ${test} ${operator} ${value} ]
383}
384
385get_localversion() {
386 local lv_list i x
387
388 # ignore files with ~ in it.
389 for i in $(ls ${1}/localversion* 2>/dev/null); do
390 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
201 done 391 done
202 value="${value}${2}"
203 392
204 len=$[ 3 - ${#KV_MINOR} ] 393 for i in ${lv_list}; do
205 for((i=0; i<$len; i++)); do 394 x="${x}$(<${i})"
206 test="${test}0"
207 done 395 done
208 test="${test}${KV_MINOR}" 396 x=${x/ /}
209 fi 397 echo ${x}
210 if [ -n "${3}" ]
211 then
212 len=$[ 3 - ${#3} ]
213 for((i=0; i<$len; i++)); do
214 value="${value}0"
215 done
216 value="${value}${3}"
217
218 len=$[ 3 - ${#KV_PATCH} ]
219 for((i=0; i<$len; i++)); do
220 test="${test}0"
221 done
222 test="${test}${KV_PATCH}"
223 fi
224
225 [ ${test} ${operator} ${value} ] && return 0 || return 1
226} 398}
227 399
400# Check if the Makefile is valid for direct parsing.
401# Check status results:
402# - PASS, use 'getfilevar' to extract values
403# - FAIL, use 'getfilevar_noexec' to extract values
404# The check may fail if:
405# - make is not present
406# - corruption exists in the kernel makefile
407get_makefile_extract_function() {
408 local a='' b='' mkfunc='getfilevar'
409 a="$(getfilevar VERSION ${KERNEL_MAKEFILE})"
410 b="$(getfilevar_noexec VERSION ${KERNEL_MAKEFILE})"
411 [[ "${a}" != "${b}" ]] && mkfunc='getfilevar_noexec'
412 echo "${mkfunc}"
413}
414
415# internal variable, so we know to only print the warning once
416get_version_warning_done=
417
418# @FUNCTION: get_version
419# @DESCRIPTION:
420# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
421# (if KV_FULL is already set it does nothing).
422#
423# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
424#
425# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
426# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
427# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
228get_version() { 428get_version() {
229 local kbuild_output 429 local kbuild_output mkfunc tmplocal
230 430
231 # no need to execute this twice assuming KV_FULL is populated. 431 # no need to execute this twice assuming KV_FULL is populated.
232 # we can force by unsetting KV_FULL 432 # we can force by unsetting KV_FULL
233 [ -n "${KV_FULL}" ] && return 0 433 [ -n "${KV_FULL}" ] && return 0
234 434
235 # if we dont know KV_FULL, then we need too. 435 # if we dont know KV_FULL, then we need too.
236 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 436 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
237 unset KV_DIR 437 unset KV_DIR
238 438
239 # KV_DIR will contain the full path to the sources directory we should use 439 # KV_DIR will contain the full path to the sources directory we should use
440 [ -z "${get_version_warning_done}" ] && \
240 qeinfo "Determining the location of the kernel source code" 441 qeinfo "Determining the location of the kernel source code"
241 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 442 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
242 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 443 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
243 444
244 if [ -z "${KV_DIR}" ] 445 if [ -z "${KV_DIR}" ]
245 then 446 then
447 if [ -z "${get_version_warning_done}" ]; then
448 get_version_warning_done=1
246 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 449 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
247 qeinfo "This package requires Linux sources." 450 #qeinfo "This package requires Linux sources."
248 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 451 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
249 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 452 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
250 qeinfo "(or the kernel you wish to build against)." 453 qeinfo "(or the kernel you wish to build against)."
251 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 454 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
252 else 455 else
253 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 456 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
457 fi
254 fi 458 fi
255 return 1 459 return 1
256 fi 460 fi
257 461
462 if [ -z "${get_version_warning_done}" ]; then
258 qeinfo "Found kernel source directory:" 463 qeinfo "Found kernel source directory:"
259 qeinfo " ${KV_DIR}" 464 qeinfo " ${KV_DIR}"
465 fi
260 466
261 if [ ! -s "${KV_DIR}/Makefile" ] 467 if [ ! -s "${KV_DIR}/Makefile" ]
262 then 468 then
469 if [ -z "${get_version_warning_done}" ]; then
470 get_version_warning_done=1
263 qeerror "Could not find a Makefile in the kernel source directory." 471 qeerror "Could not find a Makefile in the kernel source directory."
264 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 472 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
473 fi
265 return 1 474 return 1
266 fi 475 fi
267 476
268 # OK so now we know our sources directory, but they might be using 477 # OK so now we know our sources directory, but they might be using
269 # KBUILD_OUTPUT, and we need this for .config and localversions-* 478 # KBUILD_OUTPUT, and we need this for .config and localversions-*
270 # so we better find it eh? 479 # so we better find it eh?
271 # do we pass KBUILD_OUTPUT on the CLI? 480 # do we pass KBUILD_OUTPUT on the CLI?
272 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 481 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
273 482
483 # keep track of it
484 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
485
486 # Decide the function used to extract makefile variables.
487 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
488
274 # And if we didn't pass it, we can take a nosey in the Makefile 489 # And if we didn't pass it, we can take a nosey in the Makefile
275 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 490 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
276 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 491 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
277 492
278 # And contrary to existing functions I feel we shouldn't trust the 493 # And contrary to existing functions I feel we shouldn't trust the
279 # directory name to find version information as this seems insane. 494 # directory name to find version information as this seems insane.
280 # so we parse ${KV_DIR}/Makefile 495 # so we parse ${KERNEL_MAKEFILE}
281 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 496 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
282 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 497 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
283 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 498 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
284 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 499 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
285 500
286 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 501 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
287 then 502 then
503 if [ -z "${get_version_warning_done}" ]; then
504 get_version_warning_done=1
288 qeerror "Could not detect kernel version." 505 qeerror "Could not detect kernel version."
289 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 506 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
507 fi
290 return 1 508 return 1
291 fi 509 fi
292 510
293 # and in newer versions we can also pull LOCALVERSION if it is set. 511 # and in newer versions we can also pull LOCALVERSION if it is set.
294 # but before we do this, we need to find if we use a different object directory. 512 # but before we do this, we need to find if we use a different object directory.
295 # This *WILL* break if the user is using localversions, but we assume it was 513 # This *WILL* break if the user is using localversions, but we assume it was
296 # caught before this if they are. 514 # caught before this if they are.
297 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \
298 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 515 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
299 516
300 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 517 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
301 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 518 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
302 if [ -n "${KV_OUT_DIR}" ]; 519 if [ -n "${KV_OUT_DIR}" ];
303 then 520 then
304 qeinfo "Found kernel object directory:" 521 qeinfo "Found kernel object directory:"
305 qeinfo " ${KV_OUT_DIR}" 522 qeinfo " ${KV_OUT_DIR}"
306
307 KV_LOCAL="$(cat ${KV_OUT_DIR}/localversion* 2>/dev/null)"
308 fi 523 fi
309 # and if we STILL haven't got it, then we better just set it to KV_DIR 524 # and if we STILL have not got it, then we better just set it to KV_DIR
310 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 525 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
311 526
312 KV_LOCAL="${KV_LOCAL}$(cat ${KV_DIR}/localversion* 2>/dev/null)" 527 # Grab the kernel release from the output directory.
313 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 528 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
314 KV_LOCAL="${KV_LOCAL//\"/}" 529 # this function.
530 if [ -s "${KV_OUT_DIR}"/include/config/kernel.release ]; then
531 KV_LOCAL=$(<"${KV_OUT_DIR}"/include/config/kernel.release)
532 elif [ -s "${KV_OUT_DIR}"/.kernelrelease ]; then
533 KV_LOCAL=$(<"${KV_OUT_DIR}"/.kernelrelease)
534 else
535 KV_LOCAL=
536 fi
537
538 # KV_LOCAL currently contains the full release; discard the first bits.
539 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
540
541 # If the updated local version was not changed, the tree is not prepared.
542 # Clear out KV_LOCAL in that case.
543 # TODO: this does not detect a change in the localversion part between
544 # kernel.release and the value that would be generated.
545 if [ "$KV_LOCAL" = "$tmplocal" ]; then
546 KV_LOCAL=
547 else
548 KV_LOCAL=$tmplocal
549 fi
315 550
316 # And we should set KV_FULL to the full expanded version 551 # And we should set KV_FULL to the full expanded version
317 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 552 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
318 553
319 qeinfo "Found sources for kernel version:" 554 qeinfo "Found sources for kernel version:"
320 qeinfo " ${KV_FULL}" 555 qeinfo " ${KV_FULL}"
321 556
322 if [ ! -s "${KV_OUT_DIR}/.config" ]
323 then
324 qeerror "Could not find a usable .config in the kernel source directory."
325 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
326 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
327 qeerror "it points to the necessary object directory so that it might find .config."
328 return 1
329 fi
330
331 return 0 557 return 0
332} 558}
333 559
560# @FUNCTION: get_running_version
561# @DESCRIPTION:
562# It gets the version of the current running kernel and the result is the same as get_version() if the
563# function can find the sources.
564get_running_version() {
565 KV_FULL=$(uname -r)
334 566
567 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile && -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
568 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
569 KBUILD_OUTPUT=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
570 unset KV_FULL
571 get_version
572 return $?
573 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
575 unset KV_FULL
576 get_version
577 return $?
578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
579 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
580 unset KV_FULL
581 get_version
582 return $?
583 else
584 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
585 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
586 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
587 KV_PATCH=${KV_PATCH//-*}
588 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
589 fi
590 return 0
591}
592
593# This next function is named with the eclass prefix to avoid conflicts with
594# some old versionator-like eclass functions.
595
596# @FUNCTION: linux-info_get_any_version
597# @DESCRIPTION:
598# This attempts to find the version of the sources, and otherwise falls back to
599# the version of the running kernel.
600linux-info_get_any_version() {
601 get_version
602 if [[ $? -ne 0 ]]; then
603 ewarn "Unable to calculate Linux Kernel version for build, attempting to use running version"
604 get_running_version
605 fi
606}
335 607
336 608
337# ebuild check functions 609# ebuild check functions
338# --------------------------------------- 610# ---------------------------------------
339 611
612# @FUNCTION: check_kernel_built
613# @DESCRIPTION:
614# This function verifies that the current kernel sources have been already prepared otherwise it dies.
340check_kernel_built() { 615check_kernel_built() {
341 # if we haven't determined the version yet, we need too. 616 # if we haven't determined the version yet, we need to
617 require_configured_kernel
342 get_version; 618 get_version
343 619
344 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ] 620 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
345 then 621 then
346 eerror "These sources have not yet been prepared." 622 eerror "These sources have not yet been prepared."
347 eerror "We cannot build against an unprepared tree." 623 eerror "We cannot build against an unprepared tree."
348 eerror "To resolve this, please type the following:" 624 eerror "To resolve this, please type the following:"
354 eerror "Then please try merging this module again." 630 eerror "Then please try merging this module again."
355 die "Kernel sources need compiling first" 631 die "Kernel sources need compiling first"
356 fi 632 fi
357} 633}
358 634
635# @FUNCTION: check_modules_supported
636# @DESCRIPTION:
637# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
359check_modules_supported() { 638check_modules_supported() {
360 # if we haven't determined the version yet, we need too. 639 # if we haven't determined the version yet, we need too.
640 require_configured_kernel
361 get_version; 641 get_version
362 642
363 if ! linux_chkconfig_builtin "MODULES" 643 if ! linux_chkconfig_builtin "MODULES"
364 then 644 then
365 eerror "These sources do not support loading external modules." 645 eerror "These sources do not support loading external modules."
366 eerror "to be able to use this module please enable \"Loadable modules support\"" 646 eerror "to be able to use this module please enable \"Loadable modules support\""
367 eerror "in your kernel, recompile and then try merging this module again." 647 eerror "in your kernel, recompile and then try merging this module again."
368 die "No support for external modules in ${KV_FULL} config" 648 die "No support for external modules in ${KV_FULL} config"
369 fi 649 fi
370} 650}
371 651
652# @FUNCTION: check_extra_config
653# @DESCRIPTION:
654# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
655# the prefix ~ is not used) doesn't satisfy the directive.
372check_extra_config() { 656check_extra_config() {
373 local config negate error local_error i n temp_config 657 local config negate die error reworkmodulenames
658 local soft_errors_count=0 hard_errors_count=0 config_required=0
659 # store the value of the QA check, because otherwise we won't catch usages
660 # after if check_extra_config is called AND other direct calls are done
661 # later.
662 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
374 663
375 # if we haven't determined the version yet, we need too. 664 # if we haven't determined the version yet, we need to
376 get_version; 665 linux-info_get_any_version
377 666
378 einfo "Checking for suitable kernel configuration options" 667 # Determine if we really need a .config. The only time when we don't need
668 # one is when all of the CONFIG_CHECK options are prefixed with "~".
379 for config in ${CONFIG_CHECK} 669 for config in ${CONFIG_CHECK}
380 do 670 do
381 negate="${config:0:1}" 671 if [[ "${config:0:1}" != "~" ]]; then
382 if [ "${negate}" == "!" ]; 672 config_required=1
383 then 673 break
674 fi
675 done
676
677 if [[ ${config_required} == 0 ]]; then
678 # In the case where we don't require a .config, we can now bail out
679 # if the user has no .config as there is nothing to do. Otherwise
680 # code later will cause a failure due to missing .config.
681 if ! linux_config_exists; then
682 ewarn "Unable to check for the following kernel config options due"
683 ewarn "to absence of any configured kernel sources or compiled"
684 ewarn "config:"
685 for config in ${CONFIG_CHECK}; do
686 local_error="ERROR_${config#\~}"
687 msg="${!local_error}"
688 if [[ "x${msg}" == "x" ]]; then
689 local_error="WARNING_${config#\~}"
690 msg="${!local_error}"
691 fi
692 ewarn " - ${config#\~}${msg:+ - }${msg}"
693 done
694 ewarn "You're on your own to make sure they are set if needed."
695 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
696 return 0
697 fi
698 else
699 require_configured_kernel
700 fi
701
702 einfo "Checking for suitable kernel configuration options..."
703
704 for config in ${CONFIG_CHECK}
705 do
706 # if we specify any fatal, ensure we honor them
707 die=1
708 error=0
709 negate=0
710 reworkmodulenames=0
711
712 if [[ ${config:0:1} == "~" ]]; then
713 die=0
384 config="${config:1}" 714 config=${config:1}
715 elif [[ ${config:0:1} == "@" ]]; then
716 die=0
717 reworkmodulenames=1
718 config=${config:1}
719 fi
720 if [[ ${config:0:1} == "!" ]]; then
721 negate=1
722 config=${config:1}
723 fi
724
725 if [[ ${negate} == 1 ]]; then
726 linux_chkconfig_present ${config} && error=2
727 elif [[ ${reworkmodulenames} == 1 ]]; then
728 local temp_config="${config//*:}" i n
729 config="${config//:*}"
385 if linux_chkconfig_present ${config} 730 if linux_chkconfig_present ${config}; then
386 then 731 for i in ${MODULE_NAMES}; do
732 n="${i//${temp_config}}"
733 [[ -z ${n//\(*} ]] && \
734 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
735 done
736 error=2
737 fi
738 else
739 linux_chkconfig_present ${config} || error=1
740 fi
741
742 if [[ ${error} > 0 ]]; then
743 local report_func="eerror" local_error
744 local_error="ERROR_${config}"
745 local_error="${!local_error}"
746
747 if [[ -z "${local_error}" ]]; then
748 # using old, deprecated format.
387 local_error="${config}_ERROR" 749 local_error="${config}_ERROR"
388 local_error="${!local_error}" 750 local_error="${!local_error}"
389 [ -n "${local_error}" ] && eerror " ${local_error}" || \
390 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
391 error=1
392 fi 751 fi
393 elif [ "${negate}" == "@" ]; 752 if [[ ${die} == 0 && -z "${local_error}" ]]; then
394 then 753 #soft errors can be warnings
395 # we never call this unless we are using MODULE_NAMES
396
397 config="${config:1}"
398 temp_config="${config//*:}"
399 config="${config//:*}"
400 if linux_chkconfig_present ${config}
401 then
402 local_error="${config}_ERROR" 754 local_error="WARNING_${config}"
403 local_error="${!local_error}" 755 local_error="${!local_error}"
404 [ -n "${local_error}" ] && eerror " ${local_error}" || \ 756 if [[ -n "${local_error}" ]] ; then
405 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is." 757 report_func="ewarn"
406 758 fi
407 for i in ${MODULE_NAMES}
408 do
409 n="${i//${temp_config}}"
410 [ -z "${n//(*}" ] && MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
411 done
412 error=0
413 fi 759 fi
414 else 760
415 if ! linux_chkconfig_present ${config}
416 then
417 # Support the new syntax first.
418 local_error="ERROR_${config}"
419 local_error="${!local_error}"
420
421 # then fall back on the older syntax.
422 if [[ -z ${local_error} ]] ; then 761 if [[ -z "${local_error}" ]]; then
423 local_error="${config}_ERROR" 762 [[ ${error} == 1 ]] \
424 local_error="${!local_error}" 763 && local_error="is not set when it should be." \
425 fi 764 || local_error="should not be set. But it is."
426 765 local_error="CONFIG_${config}:\t ${local_error}"
427 [[ -n ${local_error} ]] && eerror " ${local_error}" || \
428 eerror " CONFIG_${config}:\tshould be set in the kernel configuration, but isn't"
429 error=1
430 fi 766 fi
767 if [[ ${die} == 0 ]]; then
768 ${report_func} " ${local_error}"
769 soft_errors_count=$[soft_errors_count + 1]
770 else
771 ${report_func} " ${local_error}"
772 hard_errors_count=$[hard_errors_count + 1]
773 fi
431 fi 774 fi
432 done 775 done
433 776
434 if [ "${error}" == 1 ] ; 777 if [[ ${hard_errors_count} > 0 ]]; then
435 then
436 eerror "Please check to make sure these options are set correctly." 778 eerror "Please check to make sure these options are set correctly."
779 eerror "Failure to do so may cause unexpected problems."
437 eerror "Once you have satisfied these options, please try merging" 780 eerror "Once you have satisfied these options, please try merging"
438 eerror "this package again." 781 eerror "this package again."
782 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
439 die "Incorrect kernel configuration options" 783 die "Incorrect kernel configuration options"
784 elif [[ ${soft_errors_count} > 0 ]]; then
785 ewarn "Please check to make sure these options are set correctly."
786 ewarn "Failure to do so may cause unexpected problems."
787 else
788 eend 0
440 fi 789 fi
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
441} 791}
442 792
443check_zlibinflate() { 793check_zlibinflate() {
444 # if we haven't determined the version yet, we need too. 794 # if we haven't determined the version yet, we need to
795 require_configured_kernel
445 get_version; 796 get_version
446 797
447 # although I restructured this code - I really really really dont support it! 798 # although I restructured this code - I really really really dont support it!
448 799
449 # bug #27882 - zlib routines are only linked into the kernel 800 # bug #27882 - zlib routines are only linked into the kernel
450 # if something compiled into the kernel calls them 801 # if something compiled into the kernel calls them
451 # 802 #
452 # plus, for the cloop module, it appears that there's no way 803 # plus, for the cloop module, it appears that there's no way
453 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS 804 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
454 # is on 805 # is on
455 806
456local INFLATE 807 local INFLATE
457local DEFLATE 808 local DEFLATE
458 809
459 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 810 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
460 811
461 ebegin "checking ZLIB_INFLATE" 812 ebegin "checking ZLIB_INFLATE"
462 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 813 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
463 eend $? 814 eend $?
464 [ "$?" != 0 ] && die 815 [ "$?" != 0 ] && die
465 816
466 ebegin "checking ZLIB_DEFLATE" 817 ebegin "checking ZLIB_DEFLATE"
467 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 818 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
468 eend $? 819 eend $?
469 [ "$?" != 0 ] && die 820 [ "$?" != 0 ] && die
470 821
471
472 local LINENO_START 822 local LINENO_START
473 local LINENO_END 823 local LINENO_END
474 local SYMBOLS 824 local SYMBOLS
475 local x 825 local x
476 826
477 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 827 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
478 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)" 828 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)"
479 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 829 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
480 (( LINENO_END = $LINENO_END - 1 )) 830 (( LINENO_END = $LINENO_END - 1 ))
481 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')" 831 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
487 # we have a winner! 837 # we have a winner!
488 einfo "${x} ensures zlib is linked into your kernel - excellent" 838 einfo "${x} ensures zlib is linked into your kernel - excellent"
489 return 0 839 return 0
490 fi 840 fi
491 done 841 done
492 842
493 eerror 843 eerror
494 eerror "This kernel module requires ZLIB library support." 844 eerror "This kernel module requires ZLIB library support."
495 eerror "You have enabled zlib support in your kernel, but haven't enabled" 845 eerror "You have enabled zlib support in your kernel, but haven't enabled"
496 eerror "enabled any option that will ensure that zlib is linked into your" 846 eerror "enabled any option that will ensure that zlib is linked into your"
497 eerror "kernel." 847 eerror "kernel."
511} 861}
512 862
513################################ 863################################
514# Default pkg_setup 864# Default pkg_setup
515# Also used when inheriting linux-mod to force a get_version call 865# Also used when inheriting linux-mod to force a get_version call
516 866# @FUNCTION: linux-info_pkg_setup
867# @DESCRIPTION:
868# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
869# to support the options specified in CONFIG_CHECK (if not null)
517linux-info_pkg_setup() { 870linux-info_pkg_setup() {
518 get_version || die "Unable to calculate Linux Kernel version" 871 linux-info_get_any_version
872
873 if kernel_is 2 4; then
874 if [ "$( gcc-major-version )" -eq "4" ] ; then
875 echo
876 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
877 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
878 echo
879 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
880 ewarn "newer kernel that supports gcc-4."
881 echo
882 ewarn "Also be aware that bugreports about gcc-4 not working"
883 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
884 echo
885 epause 10
886 fi
887 fi
888
519 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 889 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
520} 890}

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