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Revision 1.12 Revision 1.58
1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2006 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 1.12 2004/12/28 20:05:45 johnm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/linux-info.eclass,v 1.58 2009/01/12 23:04:54 maekke Exp $
4# 4#
5# Description: This eclass is used as a central eclass for accessing kernel
6# related information for sources already installed.
7# It is vital for linux-mod to function correctly, and is split
8# out so that any ebuild behaviour "templates" are abstracted out
9# using additional eclasses.
10#
11# Maintainer: John Mylchreest <johnm@gentoo.org> 5# Original author: John Mylchreest <johnm@gentoo.org>
12# Copyright 2004 Gentoo Linux 6# Maintainer: kernel-misc@gentoo.org
13# 7#
14# Please direct your bugs to the current eclass maintainer :) 8# Please direct your bugs to the current eclass maintainer :)
9
10# @ECLASS: linux-info.eclass
11# @MAINTAINER:
12# kernel-misc@gentoo.org
13# @BLURB: eclass used for accessing kernel related information
14# @DESCRIPTION:
15# This eclass is used as a central eclass for accessing kernel
16# related information for sources already installed.
17# It is vital for linux-mod.eclass to function correctly, and is split
18# out so that any ebuild behaviour "templates" are abstracted out
19# using additional eclasses.
15 20
16# A Couple of env vars are available to effect usage of this eclass 21# A Couple of env vars are available to effect usage of this eclass
17# These are as follows: 22# These are as follows:
18# 23
19# Env Var Option Description 24# @ECLASS-VARIABLE: KERNEL_DIR
20# KERNEL_DIR <string> The directory containing kernel the target kernel 25# @DESCRIPTION:
21# sources. 26# A string containing the directory of the target kernel sources. The default value is
27# "/usr/src/linux"
28
29# @ECLASS-VARIABLE: CONFIG_CHECK
30# @DESCRIPTION:
22# CONFIG_CHECK <string> a list of .config options to check for before 31# A string containing a list of .config options to check for before
23# proceeding with the install. ie: CONFIG_CHECK="MTRR" 32# proceeding with the install.
33#
34# e.g.: CONFIG_CHECK="MTRR"
35#
24# You can also check that an option doesn't exist by 36# You can also check that an option doesn't exist by
25# prepending it with an exclamation mark (!). 37# prepending it with an exclamation mark (!).
38#
26# ie: CONFIG_CHECK="!MTRR" 39# e.g.: CONFIG_CHECK="!MTRR"
27# <CFG>_ERROR <string> The error message to display when the above check 40#
41# To simply warn about a missing option, prepend a '~'.
42
43# @ECLASS-VARIABLE: ERROR_<CFG>
44# @DESCRIPTION:
45# A string containing the error message to display when the check against CONFIG_CHECK
28# fails. <CFG> should reference the appropriate option 46# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
29# as above. ie: MTRR_ERROR="MTRR exists in the .config 47#
30# but shouldn't!!" 48# 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 49
32# the kernel makefile. This contains the directory 50# @ECLASS-VARIABLE: KBUILD_OUTPUT
51# @DESCRIPTION:
52# 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. 53# which is to be used as the kernel object directory.
34 54
35# There are also a couple of variables which are set by this, and shouldn't be 55# There are also a couple of variables which are set by this, and shouldn't be
36# set by hand. These are as follows: 56# set by hand. These are as follows:
37# 57
38# Env Var Option Description 58# @ECLASS-VARIABLE: KV_FULL
39# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 59# @DESCRIPTION:
40# KV_MAJOR <integer> The kernel major version. ie: 2 60# 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 61
42# KV_PATCH <integer> The kernel patch version. ie: 9 62# @ECLASS-VARIABLE: KV_MAJOR
43# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 63# @DESCRIPTION:
44# KV_LOCAL <string> The kernel LOCALVERSION concatenation. ie: -johnm 64# 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 65
66# @ECLASS-VARIABLE: KV_MINOR
67# @DESCRIPTION:
68# A read-only variable. It's an integer containing the kernel minor version. ie: 6
69
70# @ECLASS-VARIABLE: KV_PATCH
71# @DESCRIPTION:
72# A read-only variable. It's an integer containing the kernel patch version. ie: 9
73
74# @ECLASS-VARIABLE: KV_EXTRA
75# @DESCRIPTION:
76# A read-only variable. It's a string containing the kernel EXTRAVERSION. ie: -gentoo
77
78# @ECLASS-VARIABLE: KV_LOCAL
79# @DESCRIPTION:
80# A read-only variable. It's a string containing the kernel LOCALVERSION concatenation. ie: -johnm
81
82# @ECLASS-VARIABLE: KV_DIR
83# @DESCRIPTION:
84# A read-only variable. It's a string containing the kernel source directory, will be null if
46# KERNEL_DIR is invalid. 85# KERNEL_DIR is invalid.
47# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless
48# koutput is used. This should be used for referencing
49# .config.
50 86
87# @ECLASS-VARIABLE: KV_OUT_DIR
88# @DESCRIPTION:
89# A read-only variable. It's a string containing the kernel object directory, will be KV_DIR unless
90# KBUILD_OUTPUT is used. This should be used for referencing .config.
51 91
52ECLASS=linux-info 92# And to ensure all the weirdness with crosscompile
53INHERITED="$INHERITED $ECLASS" 93inherit toolchain-funcs versionator
94
54EXPORT_FUNCTIONS pkg_setup 95EXPORT_FUNCTIONS pkg_setup
96
97DEPEND="kernel_linux? ( virtual/linux-sources )"
98RDEPEND=""
55 99
56# Overwritable environment Var's 100# Overwritable environment Var's
57# --------------------------------------- 101# ---------------------------------------
58KERNEL_DIR="${KERNEL_DIR:-/usr/src/linux}" 102KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
59 103
60 104
61# Pulled from eutils as it might be more useful only being here since 105# Bug fixes
62# very few ebuilds which dont use this eclass will ever ever use these functions 106# fix to bug #75034
63set_arch_to_kernel() {
64 export PORTAGE_ARCH="${ARCH}"
65 case ${ARCH} in 107case ${ARCH} in
66 x86) export ARCH="i386";; 108 ppc) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
67 amd64) export ARCH="x86_64";; 109 ppc64) BUILD_FIXES="${BUILD_FIXES} TOUT=${T}/.tmp_gas_check";;
68 hppa) export ARCH="parisc";;
69 mips) export ARCH="mips";;
70 *) export ARCH="${ARCH}";;
71 esac 110esac
72}
73 111
74# set's ARCH back to what portage expects 112# @FUNCTION: set_arch_to_kernel
75set_arch_to_portage() { 113# @DESCRIPTION:
76 export ARCH="${PORTAGE_ARCH}" 114# Set the env ARCH to match what the kernel expects.
77} 115set_arch_to_kernel() { export ARCH=$(tc-arch-kernel); }
116# @FUNCTION: set_arch_to_portage
117# @DESCRIPTION:
118# Set the env ARCH to match what portage expects.
119set_arch_to_portage() { export ARCH=$(tc-arch); }
78 120
79
80#
81# qeinfo "Message" 121# qeinfo "Message"
82# ------------------- 122# -------------------
83# qeinfo is a queit einfo call when EBUILD_PHASE 123# qeinfo is a quiet einfo call when EBUILD_PHASE
84# should not have visible output. 124# should not have visible output.
85# 125qout() {
86qeinfo() {
87 local outputmsg 126 local outputmsg type
127 type=${1}
128 shift
88 outputmsg="${@}" 129 outputmsg="${@}"
89 case "${EBUILD_PHASE}" in 130 case "${EBUILD_PHASE}" in
90 depend) unset outputmsg;; 131 depend) unset outputmsg;;
91 clean) unset outputmsg;; 132 clean) unset outputmsg;;
92 preinst) unset outputmsg;; 133 preinst) unset outputmsg;;
93 esac 134 esac
94 [ -n "${outputmsg}" ] && einfo "${outputmsg}" 135 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
95} 136}
96 137
97qeerror() { 138qeinfo() { qout einfo "${@}" ; }
98 local outputmsg 139qeerror() { qout eerror "${@}" ; }
99 outputmsg="${@}"
100 case "${EBUILD_PHASE}" in
101 depend) unset outputmsg;;
102 clean) unset outputmsg;;
103 preinst) unset outputmsg;;
104 esac
105 [ -n "${outputmsg}" ] && einfo "${outputmsg}"
106}
107
108
109 140
110# File Functions 141# File Functions
111# --------------------------------------- 142# ---------------------------------------
112 143
113# getfilevar accepts 2 vars as follows: 144# @FUNCTION: getfilevar
114# getfilevar <VARIABLE> <CONFIGFILE> 145# @USAGE: variable configfile
115 146# @RETURN: the value of the variable
147# @DESCRIPTION:
148# It detects the value of the variable defined in the file configfile
116getfilevar() { 149getfilevar() {
117local ERROR workingdir basefname basedname xarch 150local ERROR basefname basedname myARCH="${ARCH}"
118 ERROR=0 151 ERROR=0
119 152
120 [ -z "${1}" ] && ERROR=1 153 [ -z "${1}" ] && ERROR=1
121 [ ! -f "${2}" ] && ERROR=1 154 [ ! -f "${2}" ] && ERROR=1
122 155
123 if [ "${ERROR}" = 1 ] 156 if [ "${ERROR}" = 1 ]
124 then 157 then
125 ebeep
126 echo -e "\n" 158 echo -e "\n"
127 eerror "getfilevar requires 2 variables, with the second a valid file." 159 eerror "getfilevar requires 2 variables, with the second a valid file."
128 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 160 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
129 else 161 else
130 workingdir=${PWD}
131 basefname=$(basename ${2}) 162 basefname="$(basename ${2})"
132 basedname=$(dirname ${2}) 163 basedname="$(dirname ${2})"
133 xarch=${ARCH}
134 unset ARCH 164 unset ARCH
135
136 cd ${basedname}
137 echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \
138 make -f - e 2>/dev/null
139 cd ${workingdir}
140
141 ARCH=${xarch}
142 fi
143}
144 165
166 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
167 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
168
169 ARCH=${myARCH}
170 fi
171}
172
173
174# @FUNCTION: linux_config_exists
175# @RETURN: true or false
176# @DESCRIPTION:
177# It returns true if .config exists otherwise false
178linux_config_exists() {
179 [ -s "${KV_OUT_DIR}/.config" ]
180}
181
182# @FUNCTION: require_configured_kernel
183# @DESCRIPTION:
184# This function verifies that the current kernel is configured (it checks against the existence of .config)
185# otherwise it dies.
186require_configured_kernel() {
187 if ! linux_config_exists; then
188 qeerror "Could not find a usable .config in the kernel source directory."
189 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
190 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
191 qeerror "it points to the necessary object directory so that it might find .config."
192 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
193 fi
194}
195
196# @FUNCTION: linux_chkconfig_present
197# @USAGE: option
198# @RETURN: true or false
199# @DESCRIPTION:
200# It checks that CONFIG_<option>=y or CONFIG_<option>=n is present in the current kernel .config
145linux_chkconfig_present() { 201linux_chkconfig_present() {
146local RESULT 202local RESULT
203 require_configured_kernel
147 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 204 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
148 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 205 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
149} 206}
150 207
208# @FUNCTION: linux_chkconfig_module
209# @USAGE: option
210# @RETURN: true or false
211# @DESCRIPTION:
212# It checks that CONFIG_<option>=m is present in the current kernel .config
151linux_chkconfig_module() { 213linux_chkconfig_module() {
152local RESULT 214local RESULT
215 require_configured_kernel
153 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 216 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
154 [ "${RESULT}" = "m" ] && return 0 || return 1 217 [ "${RESULT}" = "m" ] && return 0 || return 1
155} 218}
156 219
220# @FUNCTION: linux_chkconfig_builtin
221# @USAGE: option
222# @RETURN: true or false
223# @DESCRIPTION:
224# It checks that CONFIG_<option>=y is present in the current kernel .config
157linux_chkconfig_builtin() { 225linux_chkconfig_builtin() {
158local RESULT 226local RESULT
227 require_configured_kernel
159 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 228 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)"
160 [ "${RESULT}" = "y" ] && return 0 || return 1 229 [ "${RESULT}" = "y" ] && return 0 || return 1
161} 230}
162 231
232# @FUNCTION: linux_chkconfig_string
233# @USAGE: option
234# @RETURN: CONFIG_<option>
235# @DESCRIPTION:
236# It prints the CONFIG_<option> value of the current kernel .config (it requires a configured kernel).
163linux_chkconfig_string() { 237linux_chkconfig_string() {
238 require_configured_kernel
164 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 239 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config"
165} 240}
166 241
167# Versioning Functions 242# Versioning Functions
168# --------------------------------------- 243# ---------------------------------------
169 244
170# kernel_is returns true when the version is the same as the passed version 245# @FUNCTION: kernel_is
246# @USAGE: [-lt -gt -le -ge -eq] major_number [minor_number patch_number]
247# @RETURN: true or false
248# @DESCRIPTION:
249# It returns true when the current kernel version satisfies the comparison against the passed version.
250# -eq is the default comparison.
171# 251#
252# @CODE
172# For Example where KV = 2.6.9 253# For Example where KV = 2.6.9
173# kernel_is 2 4 returns false 254# kernel_is 2 4 returns false
174# kernel_is 2 returns true 255# kernel_is 2 returns true
175# kernel_is 2 6 returns true 256# kernel_is 2 6 returns true
176# kernel_is 2 6 8 returns false 257# kernel_is 2 6 8 returns false
177# kernel_is 2 6 9 returns true 258# kernel_is 2 6 9 returns true
178# 259# @CODE
260
179# got the jist yet? 261# got the jist yet?
180 262
181kernel_is() { 263kernel_is() {
182 # if we haven't determined the version yet, we need too. 264 # if we haven't determined the version yet, we need to.
183 get_version; 265 get_version
184 266 local operator test value x=0 y=0 z=0
185 local RESULT operator value test 267
186 RESULT=0 268 case ${1} in
187 269 lt) operator="-lt"; shift;;
270 gt) operator="-gt"; shift;;
271 le) operator="-le"; shift;;
272 ge) operator="-ge"; shift;;
273 eq) operator="-eq"; shift;;
188 operator="-eq" 274 *) operator="-eq";;
189 if [ "${1}" == "lt" ] 275 esac
190 then
191 operator="-lt"
192 shift
193 elif [ "${1}" == "gt" ]
194 then
195 operator="-gt"
196 shift
197 elif [ "${1}" == "le" ]
198 then
199 operator="-le"
200 shift
201 elif [ "${1}" == "ge" ]
202 then
203 operator="-ge"
204 shift
205 fi
206 276
207 if [ -n "${1}" ] 277 for x in ${@}; do
208 then 278 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
209 [ ${KV_MAJOR} ${operator} ${1} ] || RESULT=1 279 value="${value}${x}"
210 fi 280 z=$((${z} + 1))
211 if [ -n "${2}" ]
212 then
213 [ ${KV_MINOR} ${operator} ${2} -a ${RESULT} -eq 0 ] || RESULT=1
214 fi
215 if [ -n "${3}" ]
216 then
217 [ ${KV_PATCH} ${operator} ${3} -a ${RESULT} -eq 0 ] || RESULT=1
218 fi
219 return ${RESULT}
220}
221 281
282 case ${z} in
283 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
284 test="${test}${KV_MAJOR}";;
285 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
286 test="${test}${KV_MINOR}";;
287 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
288 test="${test}${KV_PATCH}";;
289 *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
290 esac
291 done
292
293 [ ${test} ${operator} ${value} ] && return 0 || return 1
294}
295
296get_localversion() {
297 local lv_list i x
298
299 # ignore files with ~ in it.
300 for i in $(ls ${1}/localversion* 2>/dev/null); do
301 [[ -n ${i//*~*} ]] && lv_list="${lv_list} ${i}"
302 done
303
304 for i in ${lv_list}; do
305 x="${x}$(<${i})"
306 done
307 x=${x/ /}
308 echo ${x}
309}
310
311# @FUNCTION: get_version
312# @DESCRIPTION:
313# It gets the version of the kernel inside KERNEL_DIR and populates the KV_FULL variable
314# (if KV_FULL is already set it does nothing).
315#
316# The kernel version variables (KV_MAJOR, KV_MINOR, KV_PATCH, KV_EXTRA and KV_LOCAL) are also set.
317#
318# The KV_DIR is set using the KERNEL_DIR env var, the KV_DIR_OUT is set using a valid
319# KBUILD_OUTPUT (in a decreasing priority list, we look for the env var, makefile var or the
320# symlink /lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build).
222get_version() { 321get_version() {
223 local kbuild_output 322 local kbuild_output
224 323
225 # no need to execute this twice assuming KV_FULL is populated. 324 # no need to execute this twice assuming KV_FULL is populated.
226 # we can force by unsetting KV_FULL 325 # we can force by unsetting KV_FULL
227 [ -n "${KV_FULL}" ] && return 326 [ -n "${KV_FULL}" ] && return 0
228 327
229 # if we dont know KV_FULL, then we need too. 328 # if we dont know KV_FULL, then we need too.
230 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR 329 # make sure KV_DIR isnt set since we need to work it out via KERNEL_DIR
231 unset KV_DIR 330 unset KV_DIR
232 331
233 # KV_DIR will contain the full path to the sources directory we should use 332 # KV_DIR will contain the full path to the sources directory we should use
234 qeinfo "Determining the location of the kernel source code" 333 qeinfo "Determining the location of the kernel source code"
235 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 334 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
236 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 335 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
237 336
238 if [ -z "${KV_DIR}" ] 337 if [ -z "${KV_DIR}" ]
239 then 338 then
240 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 339 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
241 qeinfo "This package requires Linux sources." 340 qeinfo "This package requires Linux sources."
242 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 341 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
244 qeinfo "(or the kernel you wish to build against)." 343 qeinfo "(or the kernel you wish to build against)."
245 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 344 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
246 else 345 else
247 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 346 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
248 fi 347 fi
249 die "Cannot locate Linux sources at ${KERNEL_DIR}" 348 return 1
250 fi 349 fi
251 350
252 qeinfo "Found kernel source directory:" 351 qeinfo "Found kernel source directory:"
253 qeinfo " ${KV_DIR}" 352 qeinfo " ${KV_DIR}"
254 353
255 if [ ! -s "${KV_DIR}/Makefile" ] 354 if [ ! -s "${KV_DIR}/Makefile" ]
256 then 355 then
257 qeerror "Could not find a Makefile in the kernel source directory." 356 qeerror "Could not find a Makefile in the kernel source directory."
258 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 357 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
259 die "Makefile not found in ${KV_DIR}" 358 return 1
260 fi 359 fi
261 360
262 # OK so now we know our sources directory, but they might be using 361 # OK so now we know our sources directory, but they might be using
263 # KBUILD_OUTPUT, and we need this for .config and localversions-* 362 # KBUILD_OUTPUT, and we need this for .config and localversions-*
264 # so we better find it eh? 363 # so we better find it eh?
265 # do we pass KBUILD_OUTPUT on the CLI? 364 # do we pass KBUILD_OUTPUT on the CLI?
266 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 365 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
267 366
268 # And if we didn't pass it, we can take a nosey in the Makefile 367 # And if we didn't pass it, we can take a nosey in the Makefile
269 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 368 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)"
270 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 369 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
271 370
272 # And contrary to existing functions I feel we shouldn't trust the 371 # And contrary to existing functions I feel we shouldn't trust the
273 # directory name to find version information as this seems insane. 372 # directory name to find version information as this seems insane.
274 # so we parse ${KV_DIR}/Makefile 373 # so we parse ${KV_DIR}/Makefile
275 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 374 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)"
276 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 375 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)"
277 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 376 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)"
278 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 377 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)"
279 378
280 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 379 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
281 then 380 then
282 qeerror "Could not detect kernel version." 381 qeerror "Could not detect kernel version."
283 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 382 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
284 die "Could not parse version info from ${KV_DIR}/Makefile" 383 return 1
285 fi 384 fi
286 385
287 # and in newer versions we can also pull LOCALVERSION if it is set. 386 # and in newer versions we can also pull LOCALVERSION if it is set.
288 # but before we do this, we need to find if we use a different object directory. 387 # but before we do this, we need to find if we use a different object directory.
289 # This *WILL* break if the user is using localversions, but we assume it was 388 # This *WILL* break if the user is using localversions, but we assume it was
290 # caught before this if they are. 389 # caught before this if they are.
291 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}" == "$(uname -r)" ] && \ 390 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
292 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.${KV_EXTRA}/build}" 391 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}"
293 392
294 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 393 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
295 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 394 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
296 if [ -n "${KV_OUT_DIR}" ]; 395 if [ -n "${KV_OUT_DIR}" ];
297 then 396 then
298 qeinfo "Found kernel object directory:" 397 qeinfo "Found kernel object directory:"
299 qeinfo " ${KV_OUT_DIR}" 398 qeinfo " ${KV_OUT_DIR}"
300 399
301 KV_LOCAL="$(cat ${KV_OUT_DIR}/localversion* 2>/dev/null)" 400 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
302 fi 401 fi
303 # and if we STILL haven't got it, then we better just set it to KV_DIR 402 # and if we STILL have not got it, then we better just set it to KV_DIR
304 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 403 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
305 404
306 KV_LOCAL="${KV_LOCAL}$(cat ${KV_DIR}/localversion* 2>/dev/null)" 405 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})"
406 if linux_config_exists; then
307 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 407 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)"
308 KV_LOCAL="${KV_LOCAL//\"/}" 408 KV_LOCAL="${KV_LOCAL//\"/}"
309 409
410 # For things like git that can append extra stuff:
411 [ -e ${KV_DIR}/scripts/setlocalversion ] &&
412 linux_chkconfig_builtin LOCALVERSION_AUTO &&
413 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})"
414 fi
415
310 # And we should set KV_FULL to the full expanded version 416 # And we should set KV_FULL to the full expanded version
311 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}" 417 KV_FULL="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}${KV_LOCAL}"
312 418
313 qeinfo "Found sources for kernel version:" 419 qeinfo "Found sources for kernel version:"
314 qeinfo " ${KV_FULL}" 420 qeinfo " ${KV_FULL}"
315
316 if [ ! -s "${KV_OUT_DIR}/.config" ]
317 then
318 qeerror "Could not find a usable .config in the kernel source directory."
319 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
320 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
321 qeerror "it points to the necessary object directory so that it might find .config."
322 die ".config not found in ${KV_OUT_DIR}"
323 fi
324}
325 421
422 return 0
423}
326 424
425# @FUNCTION: get_running_version
426# @DESCRIPTION:
427# It gets the version of the current running kernel and the result is the same as get_version() if the
428# function can find the sources.
429get_running_version() {
430 KV_FULL=$(uname -r)
431
432 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
433 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
434 unset KV_FULL
435 get_version
436 return $?
437 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
438 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/build)
439 unset KV_FULL
440 get_version
441 return $?
442 else
443 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
444 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
445 KV_PATCH=$(get_version_component_range 3- ${KV_FULL})
446 KV_PATCH=${KV_PATCH//-*}
447 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \
448 && KV_EXTRA="-${KV_FULL#*-}"
449 fi
450 return 0
451}
327 452
328 453
329# ebuild check functions 454# ebuild check functions
330# --------------------------------------- 455# ---------------------------------------
331 456
457# @FUNCTION: check_kernel_built
458# @DESCRIPTION:
459# This function verifies that the current kernel sources have been already prepared otherwise it dies.
332check_kernel_built() { 460check_kernel_built() {
333 # if we haven't determined the version yet, we need too. 461 # if we haven't determined the version yet, we need to
462 require_configured_kernel
334 get_version; 463 get_version
335 464
336 if [ ! -f "${KV_OUT_DIR}/System.map" ] 465 if [ ! -f "${KV_OUT_DIR}/include/linux/version.h" ]
337 then 466 then
338 eerror "These sources have not yet been compiled." 467 eerror "These sources have not yet been prepared."
339 eerror "We cannot build against an uncompiled tree." 468 eerror "We cannot build against an unprepared tree."
340 eerror "To resolve this, please type the following:" 469 eerror "To resolve this, please type the following:"
341 eerror 470 eerror
342 eerror "# cd ${KV_DIR}" 471 eerror "# cd ${KV_DIR}"
343 eerror "# make oldconfig" 472 eerror "# make oldconfig"
344 eerror "# make bzImage modules modules_install" 473 eerror "# make modules_prepare"
345 eerror 474 eerror
346 eerror "Then please try merging this module again." 475 eerror "Then please try merging this module again."
347 die "Kernel sources need compiling first" 476 die "Kernel sources need compiling first"
348 fi 477 fi
349} 478}
350 479
480# @FUNCTION: check_modules_supported
481# @DESCRIPTION:
482# This function verifies that the current kernel support modules (it checks CONFIG_MODULES=y) otherwise it dies.
351check_modules_supported() { 483check_modules_supported() {
352 # if we haven't determined the version yet, we need too. 484 # if we haven't determined the version yet, we need too.
485 require_configured_kernel
353 get_version; 486 get_version
354 487
355 if ! linux_chkconfig_builtin "MODULES" 488 if ! linux_chkconfig_builtin "MODULES"
356 then 489 then
357 eerror "These sources do not support loading external modules." 490 eerror "These sources do not support loading external modules."
358 eerror "to be able to use this module please enable \"Loadable modules support\"" 491 eerror "to be able to use this module please enable \"Loadable modules support\""
359 eerror "in your kernel, recompile and then try merging this module again." 492 eerror "in your kernel, recompile and then try merging this module again."
360 die "No support for external modules in ${KV_FULL} config" 493 die "No support for external modules in ${KV_FULL} config"
361 fi 494 fi
362} 495}
363 496
497# @FUNCTION: check_extra_config
498# @DESCRIPTION:
499# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
500# the prefix ~ is not used) doesn't satisfy the directive.
364check_extra_config() { 501check_extra_config() {
365local config negate error local_error 502 local config negate die error reworkmodulenames
503 local soft_errors_count=0 hard_errors_count=0 config_required=0
366 504
367 # if we haven't determined the version yet, we need too. 505 # if we haven't determined the version yet, we need to
368 get_version; 506 get_version
369 507
370 einfo "Checking for suitable kernel configuration options" 508 # Determine if we really need a .config. The only time when we don't need
509 # one is when all of the CONFIG_CHECK options are prefixed with "~".
371 for config in ${CONFIG_CHECK} 510 for config in ${CONFIG_CHECK}
372 do 511 do
373 negate="${config:0:1}" 512 if [[ "${config:0:1}" != "~" ]]; then
374 if [ "${negate}" == "!" ]; 513 config_required=1
375 then 514 break
515 fi
516 done
517
518 if [[ ${config_required} == 0 ]]; then
519 # In the case where we don't require a .config, we can now bail out
520 # if the user has no .config as there is nothing to do. Otherwise
521 # code later will cause a failure due to missing .config.
522 if ! linux_config_exists; then
523 return 0
524 fi
525 else
526 require_configured_kernel
527 fi
528
529 einfo "Checking for suitable kernel configuration options..."
530
531 for config in ${CONFIG_CHECK}
532 do
533 # if we specify any fatal, ensure we honor them
534 die=1
535 error=0
536 negate=0
537 reworkmodulenames=0
538
539 if [[ ${config:0:1} == "~" ]]; then
540 die=0
376 config="${config:1}" 541 config=${config:1}
542 elif [[ ${config:0:1} == "@" ]]; then
543 die=0
544 reworkmodulenames=1
545 config=${config:1}
546 fi
547 if [[ ${config:0:1} == "!" ]]; then
548 negate=1
549 config=${config:1}
550 fi
551
552 if [[ ${negate} == 1 ]]; then
553 linux_chkconfig_present ${config} && error=2
554 elif [[ ${reworkmodulenames} == 1 ]]; then
555 local temp_config="${config//*:}" i n
556 config="${config//:*}"
377 if linux_chkconfig_present ${config} 557 if linux_chkconfig_present ${config}; then
378 then 558 for i in ${MODULE_NAMES}; do
559 n="${i//${temp_config}}"
560 [[ -z ${n//\(*} ]] && \
561 MODULE_IGNORE="${MODULE_IGNORE} ${temp_config}"
562 done
563 error=2
564 fi
565 else
566 linux_chkconfig_present ${config} || error=1
567 fi
568
569 if [[ ${error} > 0 ]]; then
570 local report_func="eerror" local_error
571 local_error="ERROR_${config}"
572 local_error="${!local_error}"
573
574 if [[ -z "${local_error}" ]]; then
575 # using old, deprecated format.
379 local_error="${config}_ERROR" 576 local_error="${config}_ERROR"
380 local_error="${!local_error}" 577 local_error="${!local_error}"
381 [ -n "${local_error}" ] && eerror " ${local_error}" || \
382 eerror " CONFIG_${config}:\tshould not be set in the kernel configuration, but it is."
383 error=1
384 fi 578 fi
385 else 579 if [[ ${die} == 0 && -z "${local_error}" ]]; then
386 if ! linux_chkconfig_present ${config} 580 #soft errors can be warnings
387 then
388 local_error="${config}_ERROR" 581 local_error="WARNING_${config}"
389 local_error="${!local_error}" 582 local_error="${!local_error}"
390 [ -n "${local_error}" ] && eerror " ${local_error}" || \ 583 if [[ -n "${local_error}" ]] ; then
391 eerror " CONFIG_${config}:\tshould be set in the kernel configuration, but isn't" 584 report_func="ewarn"
392 error=1 585 fi
393 fi 586 fi
587
588 if [[ -z "${local_error}" ]]; then
589 [[ ${error} == 1 ]] \
590 && local_error="is not set when it should be." \
591 || local_error="should not be set. But it is."
592 local_error="CONFIG_${config}:\t ${local_error}"
593 fi
594 if [[ ${die} == 0 ]]; then
595 ${report_func} " ${local_error}"
596 soft_errors_count=$[soft_errors_count + 1]
597 else
598 ${report_func} " ${local_error}"
599 hard_errors_count=$[hard_errors_count + 1]
600 fi
394 fi 601 fi
395 done 602 done
396 603
397 if [ -n "${error}" ] ; 604 if [[ ${hard_errors_count} > 0 ]]; then
398 then
399 eerror "Please check to make sure these options are set correctly." 605 eerror "Please check to make sure these options are set correctly."
606 eerror "Failure to do so may cause unexpected problems."
400 eerror "Once you have satisfied these options, please try merging" 607 eerror "Once you have satisfied these options, please try merging"
401 eerror "this package again." 608 eerror "this package again."
402 die "Incorrect kernel configuration options" 609 die "Incorrect kernel configuration options"
610 elif [[ ${soft_errors_count} > 0 ]]; then
611 ewarn "Please check to make sure these options are set correctly."
612 ewarn "Failure to do so may cause unexpected problems."
613 else
614 eend 0
403 fi 615 fi
404} 616}
405 617
406check_zlibinflate() { 618check_zlibinflate() {
407 # if we haven't determined the version yet, we need too. 619 # if we haven't determined the version yet, we need to
620 require_configured_kernel
408 get_version; 621 get_version
409 622
410 # although I restructured this code - I really really really dont support it! 623 # although I restructured this code - I really really really dont support it!
411 624
412 # bug #27882 - zlib routines are only linked into the kernel 625 # bug #27882 - zlib routines are only linked into the kernel
413 # if something compiled into the kernel calls them 626 # if something compiled into the kernel calls them
414 # 627 #
415 # plus, for the cloop module, it appears that there's no way 628 # plus, for the cloop module, it appears that there's no way
416 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS 629 # to get cloop.o to include a static zlib if CONFIG_MODVERSIONS
417 # is on 630 # is on
418 631
419local INFLATE 632 local INFLATE
420local DEFLATE 633 local DEFLATE
421 634
422 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 635 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
423 636
424 ebegin "checking ZLIB_INFLATE" 637 ebegin "checking ZLIB_INFLATE"
425 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 638 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config
426 eend $? 639 eend $?
427 [ "$?" != 0 ] && die 640 [ "$?" != 0 ] && die
428 641
429 ebegin "checking ZLIB_DEFLATE" 642 ebegin "checking ZLIB_DEFLATE"
430 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 643 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config
431 eend $? 644 eend $?
432 [ "$?" != 0 ] && die 645 [ "$?" != 0 ] && die
433 646
434
435 local LINENO_START 647 local LINENO_START
436 local LINENO_END 648 local LINENO_END
437 local SYMBOLS 649 local SYMBOLS
438 local x 650 local x
439 651
440 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)" 652 LINENO_END="$(grep -n 'CONFIG_ZLIB_INFLATE y' ${KV_DIR}/lib/Config.in | cut -d : -f 1)"
441 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)" 653 LINENO_START="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | grep -n 'if \[' | tail -n 1 | cut -d : -f 1)"
442 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START )) 654 (( LINENO_AMOUNT = $LINENO_END - $LINENO_START ))
443 (( LINENO_END = $LINENO_END - 1 )) 655 (( LINENO_END = $LINENO_END - 1 ))
444 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')" 656 SYMBOLS="$(head -n $LINENO_END ${KV_DIR}/lib/Config.in | tail -n $LINENO_AMOUNT | sed -e 's/^.*\(CONFIG_[^\" ]*\).*/\1/g;')"
450 # we have a winner! 662 # we have a winner!
451 einfo "${x} ensures zlib is linked into your kernel - excellent" 663 einfo "${x} ensures zlib is linked into your kernel - excellent"
452 return 0 664 return 0
453 fi 665 fi
454 done 666 done
455 667
456 eerror 668 eerror
457 eerror "This kernel module requires ZLIB library support." 669 eerror "This kernel module requires ZLIB library support."
458 eerror "You have enabled zlib support in your kernel, but haven't enabled" 670 eerror "You have enabled zlib support in your kernel, but haven't enabled"
459 eerror "enabled any option that will ensure that zlib is linked into your" 671 eerror "enabled any option that will ensure that zlib is linked into your"
460 eerror "kernel." 672 eerror "kernel."
474} 686}
475 687
476################################ 688################################
477# Default pkg_setup 689# Default pkg_setup
478# Also used when inheriting linux-mod to force a get_version call 690# Also used when inheriting linux-mod to force a get_version call
479 691# @FUNCTION: linux-info_pkg_setup
692# @DESCRIPTION:
693# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
694# to support the options specified in CONFIG_CHECK (if not null)
480linux-info_pkg_setup() { 695linux-info_pkg_setup() {
481 get_version; 696 get_version || die "Unable to calculate Linux Kernel version"
697
698 if kernel_is 2 4; then
699 if [ "$( gcc-major-version )" -eq "4" ] ; then
700 echo
701 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"
702 ewarn "linux-2.4 (or modules building against a linux-2.4 kernel)!"
703 echo
704 ewarn "Either switch to another gcc-version (via gcc-config) or use a"
705 ewarn "newer kernel that supports gcc-4."
706 echo
707 ewarn "Also be aware that bugreports about gcc-4 not working"
708 ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"
709 echo
710 epause 10
711 fi
712 fi
713
482 [ -n "${CONFIG_CHECK}" ] && check_extra_config; 714 [ -n "${CONFIG_CHECK}" ] && check_extra_config;
483} 715}

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