/[gentoo-x86]/eclass/linux-info.eclass
Gentoo

Diff of /eclass/linux-info.eclass

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

Revision 1.54 Revision 1.91
1# Copyright 1999-2006 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 1.54 2008/01/23 20:58:08 dsd 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# Description: This eclass is used as a central eclass for accessing kernel 5# @ECLASS: linux-info.eclass
6# related information for sources already installed. 6# @MAINTAINER:
7# It is vital for linux-mod to function correctly, and is split 7# kernel-misc@gentoo.org
8# out so that any ebuild behaviour "templates" are abstracted out 8# @AUTHOR:
9# using additional eclasses.
10#
11# Original author: John Mylchreest <johnm@gentoo.org> 9# Original author: John Mylchreest <johnm@gentoo.org>
12# Maintainer: kernel-misc@gentoo.org 10# @BLURB: eclass used for accessing kernel related information
11# @DESCRIPTION:
12# This eclass is used as a central eclass for accessing kernel
13# related information for source or binary already installed.
14# It is vital for linux-mod.eclass to function correctly, and is split
15# out so that any ebuild behaviour "templates" are abstracted out
16# using additional eclasses.
13# 17#
14# Please direct your bugs to the current eclass maintainer :) 18# "kernel config" in this file means:
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.
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"
41#
27# To simply warn about a missing option, prepend a '~'. 42# To simply warn about a missing option, prepend a '~'.
28# ERROR_CFG <string> The error message to display when the above check 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
29# fails. <CFG> should reference the appropriate option 55# fails. <CFG> should reference the appropriate option used in CONFIG_CHECK.
30# as above. ie: ERROR_MTRR="MTRR exists in the .config 56#
31# but shouldn't!!" 57# 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 58
33# 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
34# which is to be used as the kernel object directory. 62# which is to be used as the kernel object directory.
35 63
36# 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
37# set by hand. These are as follows: 65# set by hand. These are as follows:
38# 66
39# Env Var Option Description 67# @ECLASS-VARIABLE: KV_FULL
40# KV_FULL <string> The full kernel version. ie: 2.6.9-gentoo-johnm-r1 68# @DESCRIPTION:
41# 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
42# KV_MINOR <integer> The kernel minor version. ie: 6 70
43# KV_PATCH <integer> The kernel patch version. ie: 9 71# @ECLASS-VARIABLE: KV_MAJOR
44# KV_EXTRA <string> The kernel EXTRAVERSION. ie: -gentoo 72# @DESCRIPTION:
45# 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
46# 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
47# KERNEL_DIR is invalid. 94# KERNEL_DIR is invalid.
48# KV_OUT_DIR <string> The kernel object directory. will be KV_DIR unless 95
49# koutput is used. This should be used for referencing 96# @ECLASS-VARIABLE: KV_OUT_DIR
50# .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.
51 100
52# And to ensure all the weirdness with crosscompile 101# And to ensure all the weirdness with crosscompile
53inherit toolchain-funcs versionator 102inherit toolchain-funcs versionator
54 103
55EXPORT_FUNCTIONS pkg_setup 104EXPORT_FUNCTIONS pkg_setup
56 105
57DEPEND="kernel_linux? ( virtual/linux-sources )" 106DEPEND=""
58RDEPEND="" 107RDEPEND=""
59 108
60# Overwritable environment Var's 109# Overwritable environment Var's
61# --------------------------------------- 110# ---------------------------------------
62KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}" 111KERNEL_DIR="${KERNEL_DIR:-${ROOT}usr/src/linux}"
94 esac 143 esac
95 [ -n "${outputmsg}" ] && ${type} "${outputmsg}" 144 [ -n "${outputmsg}" ] && ${type} "${outputmsg}"
96} 145}
97 146
98qeinfo() { qout einfo "${@}" ; } 147qeinfo() { qout einfo "${@}" ; }
148qewarn() { qout ewarn "${@}" ; }
99qeerror() { qout eerror "${@}" ; } 149qeerror() { qout eerror "${@}" ; }
100 150
101# File Functions 151# File Functions
102# --------------------------------------- 152# ---------------------------------------
103 153
104# getfilevar accepts 2 vars as follows: 154# @FUNCTION: getfilevar
105# getfilevar <VARIABLE> <CONFIGFILE> 155# @USAGE: variable configfile
106 156# @RETURN: the value of the variable
157# @DESCRIPTION:
158# It detects the value of the variable defined in the file configfile. This is
159# done by including the configfile, and printing the variable with Make.
160# It WILL break if your makefile has missing dependencies!
107getfilevar() { 161getfilevar() {
108local ERROR workingdir basefname basedname myARCH="${ARCH}" 162local ERROR basefname basedname myARCH="${ARCH}"
109 ERROR=0 163 ERROR=0
110 164
111 [ -z "${1}" ] && ERROR=1 165 [ -z "${1}" ] && ERROR=1
112 [ ! -f "${2}" ] && ERROR=1 166 [ ! -f "${2}" ] && ERROR=1
113 167
115 then 169 then
116 echo -e "\n" 170 echo -e "\n"
117 eerror "getfilevar requires 2 variables, with the second a valid file." 171 eerror "getfilevar requires 2 variables, with the second a valid file."
118 eerror " getfilevar <VARIABLE> <CONFIGFILE>" 172 eerror " getfilevar <VARIABLE> <CONFIGFILE>"
119 else 173 else
120 workingdir="${PWD}"
121 basefname="$(basename ${2})" 174 basefname="$(basename ${2})"
122 basedname="$(dirname ${2})" 175 basedname="$(dirname ${2})"
123 unset ARCH 176 unset ARCH
124 177
125 cd "${basedname}"
126 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \ 178 echo -e "e:\\n\\t@echo \$(${1})\\ninclude ${basefname}" | \
127 make M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null 179 make -C "${basedname}" M="${S}" ${BUILD_FIXES} -s -f - 2>/dev/null
128 cd "${workingdir}"
129 180
130 ARCH=${myARCH} 181 ARCH=${myARCH}
131 fi 182 fi
132} 183}
133 184
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="${ARCH}"
194 ERROR=0
195 mycat='cat'
134 196
197 [ -z "${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.
135linux_config_exists() { 259linux_config_exists() {
136 [ -s "${KV_OUT_DIR}/.config" ] 260 linux_config_src_exists || linux_config_bin_exists
137} 261}
138 262
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.
139require_configured_kernel() { 267require_configured_kernel() {
140 if ! linux_config_exists; then 268 if ! linux_config_src_exists; then
141 qeerror "Could not find a usable .config in the kernel source directory." 269 qeerror "Could not find a usable .config in the kernel source directory."
142 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources." 270 qeerror "Please ensure that ${KERNEL_DIR} points to a configured set of Linux sources."
143 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that" 271 qeerror "If you are using KBUILD_OUTPUT, please set the environment var so that"
144 qeerror "it points to the necessary object directory so that it might find .config." 272 qeerror "it points to the necessary object directory so that it might find .config."
145 die "Kernel not configured; no .config found in ${KV_OUT_DIR}" 273 die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
146 fi 274 fi
147} 275}
148 276
277# @FUNCTION: linux_chkconfig_present
278# @USAGE: option
279# @RETURN: true or false
280# @DESCRIPTION:
281# It checks that CONFIG_<option>=y or CONFIG_<option>=m is present in the current kernel .config
282# If linux_config_exists returns false, the results of this are UNDEFINED. You
283# MUST call linux_config_exists first.
149linux_chkconfig_present() { 284linux_chkconfig_present() {
285 linux_config_qa_check linux_chkconfig_present
150local RESULT 286 local RESULT
151 require_configured_kernel 287 local config
288 config="${KV_OUT_DIR}/.config"
289 [ ! -f "${config}" ] && config="/proc/config.gz"
152 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 290 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
153 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1 291 [ "${RESULT}" = "m" -o "${RESULT}" = "y" ] && return 0 || return 1
154} 292}
155 293
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.
156linux_chkconfig_module() { 301linux_chkconfig_module() {
302 linux_config_qa_check linux_chkconfig_module
157local RESULT 303 local RESULT
158 require_configured_kernel 304 local config
305 config="${KV_OUT_DIR}/.config"
306 [ ! -f "${config}" ] && config="/proc/config.gz"
159 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 307 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
160 [ "${RESULT}" = "m" ] && return 0 || return 1 308 [ "${RESULT}" = "m" ] && return 0 || return 1
161} 309}
162 310
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.
163linux_chkconfig_builtin() { 318linux_chkconfig_builtin() {
319 linux_config_qa_check linux_chkconfig_builtin
164local RESULT 320 local RESULT
165 require_configured_kernel 321 local config
322 config="${KV_OUT_DIR}/.config"
323 [ ! -f "${config}" ] && config="/proc/config.gz"
166 RESULT="$(getfilevar CONFIG_${1} ${KV_OUT_DIR}/.config)" 324 RESULT="$(getfilevar_noexec CONFIG_${1} "${config}")"
167 [ "${RESULT}" = "y" ] && return 0 || return 1 325 [ "${RESULT}" = "y" ] && return 0 || return 1
168} 326}
169 327
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.
170linux_chkconfig_string() { 335linux_chkconfig_string() {
171 require_configured_kernel 336 linux_config_qa_check linux_chkconfig_string
337 local config
338 config="${KV_OUT_DIR}/.config"
339 [ ! -f "${config}" ] && config="/proc/config.gz"
172 getfilevar "CONFIG_${1}" "${KV_OUT_DIR}/.config" 340 getfilevar_noexec "CONFIG_${1}" "${config}"
173} 341}
174 342
175# Versioning Functions 343# Versioning Functions
176# --------------------------------------- 344# ---------------------------------------
177 345
178# 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.
179# 352#
353# @CODE
180# For Example where KV = 2.6.9 354# For Example where KV = 2.6.9
181# kernel_is 2 4 returns false 355# kernel_is 2 4 returns false
182# kernel_is 2 returns true 356# kernel_is 2 returns true
183# kernel_is 2 6 returns true 357# kernel_is 2 6 returns true
184# kernel_is 2 6 8 returns false 358# kernel_is 2 6 8 returns false
185# kernel_is 2 6 9 returns true 359# kernel_is 2 6 9 returns true
186# 360# @CODE
187# got the jist yet?
188 361
362# Note: duplicated in kernel-2.eclass
189kernel_is() { 363kernel_is() {
190 # if we haven't determined the version yet, we need to. 364 # if we haven't determined the version yet, we need to.
191 get_version 365 linux-info_get_any_version
366
367 # Now we can continue
192 local operator test value x=0 y=0 z=0 368 local operator test value
193 369
194 case ${1} in 370 case ${1#-} in
195 lt) operator="-lt"; shift;; 371 lt) operator="-lt"; shift;;
196 gt) operator="-gt"; shift;; 372 gt) operator="-gt"; shift;;
197 le) operator="-le"; shift;; 373 le) operator="-le"; shift;;
198 ge) operator="-ge"; shift;; 374 ge) operator="-ge"; shift;;
199 eq) operator="-eq"; shift;; 375 eq) operator="-eq"; shift;;
200 *) operator="-eq";; 376 *) operator="-eq";;
201 esac 377 esac
202
203 for x in ${@}; do
204 for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
205 value="${value}${x}"
206 z=$((${z} + 1))
207
208 case ${z} in
209 1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
210 test="${test}${KV_MAJOR}";;
211 2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
212 test="${test}${KV_MINOR}";;
213 3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
214 test="${test}${KV_PATCH}";;
215 *) die "Error in kernel-2_kernel_is(): Too many parameters.";; 378 [[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
216 esac
217 done
218 379
219 [ ${test} ${operator} ${value} ] && return 0 || return 1 380 : $(( 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} ${value} ]
220} 383}
221 384
222get_localversion() { 385get_localversion() {
223 local lv_list i x 386 local lv_list i x
224 387
232 done 395 done
233 x=${x/ /} 396 x=${x/ /}
234 echo ${x} 397 echo ${x}
235} 398}
236 399
400# Check if the Makefile is valid for direct parsing.
401# Check status results:
402# - PASS, use 'getfilevar' to extract values
403# - FAIL, use 'getfilevar_noexec' to extract values
404# The check may fail if:
405# - make is not present
406# - corruption exists in the kernel makefile
407get_makefile_extract_function() {
408 local a='' b='' mkfunc='getfilevar'
409 a="$(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).
237get_version() { 428get_version() {
238 local kbuild_output 429 local kbuild_output mkfunc tmplocal
239 430
240 # no need to execute this twice assuming KV_FULL is populated. 431 # no need to execute this twice assuming KV_FULL is populated.
241 # we can force by unsetting KV_FULL 432 # we can force by unsetting KV_FULL
242 [ -n "${KV_FULL}" ] && return 0 433 [ -n "${KV_FULL}" ] && return 0
243 434
244 # if we dont know KV_FULL, then we need too. 435 # if we dont know KV_FULL, then we need too.
245 # 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
246 unset KV_DIR 437 unset KV_DIR
247 438
248 # 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 "${get_version_warning_done}" ] && \
249 qeinfo "Determining the location of the kernel source code" 441 qeinfo "Determining the location of the kernel source code"
250 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})" 442 [ -h "${KERNEL_DIR}" ] && KV_DIR="$(readlink -f ${KERNEL_DIR})"
251 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}" 443 [ -d "${KERNEL_DIR}" ] && KV_DIR="${KERNEL_DIR}"
252 444
253 if [ -z "${KV_DIR}" ] 445 if [ -z "${KV_DIR}" ]
254 then 446 then
447 if [ -z "${get_version_warning_done}" ]; then
448 get_version_warning_done=1
255 qeerror "Unable to find kernel sources at ${KERNEL_DIR}" 449 qeerror "Unable to find kernel sources at ${KERNEL_DIR}"
256 qeinfo "This package requires Linux sources." 450 #qeinfo "This package requires Linux sources."
257 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then 451 if [ "${KERNEL_DIR}" == "/usr/src/linux" ] ; then
258 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, " 452 qeinfo "Please make sure that ${KERNEL_DIR} points at your running kernel, "
259 qeinfo "(or the kernel you wish to build against)." 453 qeinfo "(or the kernel you wish to build against)."
260 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location" 454 qeinfo "Alternatively, set the KERNEL_DIR environment variable to the kernel sources location"
261 else 455 else
262 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against." 456 qeinfo "Please ensure that the KERNEL_DIR environment variable points at full Linux sources of the kernel you wish to compile against."
457 fi
263 fi 458 fi
264 return 1 459 return 1
265 fi 460 fi
266 461
462 if [ -z "${get_version_warning_done}" ]; then
267 qeinfo "Found kernel source directory:" 463 qeinfo "Found kernel source directory:"
268 qeinfo " ${KV_DIR}" 464 qeinfo " ${KV_DIR}"
465 fi
269 466
270 if [ ! -s "${KV_DIR}/Makefile" ] 467 if [ ! -s "${KV_DIR}/Makefile" ]
271 then 468 then
469 if [ -z "${get_version_warning_done}" ]; then
470 get_version_warning_done=1
272 qeerror "Could not find a Makefile in the kernel source directory." 471 qeerror "Could not find a Makefile in the kernel source directory."
273 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources" 472 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources"
473 fi
274 return 1 474 return 1
275 fi 475 fi
276 476
277 # OK so now we know our sources directory, but they might be using 477 # OK so now we know our sources directory, but they might be using
278 # KBUILD_OUTPUT, and we need this for .config and localversions-* 478 # KBUILD_OUTPUT, and we need this for .config and localversions-*
279 # so we better find it eh? 479 # so we better find it eh?
280 # do we pass KBUILD_OUTPUT on the CLI? 480 # do we pass KBUILD_OUTPUT on the CLI?
281 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}" 481 OUTPUT_DIR="${OUTPUT_DIR:-${KBUILD_OUTPUT}}"
282 482
483 # keep track of it
484 KERNEL_MAKEFILE="${KV_DIR}/Makefile"
485
486 # Decide the function used to extract makefile variables.
487 mkfunc="$(get_makefile_extract_function "${KERNEL_MAKEFILE}")"
488
283 # 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
284 kbuild_output="$(getfilevar KBUILD_OUTPUT ${KV_DIR}/Makefile)" 490 kbuild_output="$(${mkfunc} KBUILD_OUTPUT ${KERNEL_MAKEFILE})"
285 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}" 491 OUTPUT_DIR="${OUTPUT_DIR:-${kbuild_output}}"
286 492
287 # 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
288 # directory name to find version information as this seems insane. 494 # directory name to find version information as this seems insane.
289 # so we parse ${KV_DIR}/Makefile 495 # so we parse ${KERNEL_MAKEFILE}
290 KV_MAJOR="$(getfilevar VERSION ${KV_DIR}/Makefile)" 496 KV_MAJOR="$(${mkfunc} VERSION ${KERNEL_MAKEFILE})"
291 KV_MINOR="$(getfilevar PATCHLEVEL ${KV_DIR}/Makefile)" 497 KV_MINOR="$(${mkfunc} PATCHLEVEL ${KERNEL_MAKEFILE})"
292 KV_PATCH="$(getfilevar SUBLEVEL ${KV_DIR}/Makefile)" 498 KV_PATCH="$(${mkfunc} SUBLEVEL ${KERNEL_MAKEFILE})"
293 KV_EXTRA="$(getfilevar EXTRAVERSION ${KV_DIR}/Makefile)" 499 KV_EXTRA="$(${mkfunc} EXTRAVERSION ${KERNEL_MAKEFILE})"
294 500
295 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ] 501 if [ -z "${KV_MAJOR}" -o -z "${KV_MINOR}" -o -z "${KV_PATCH}" ]
296 then 502 then
503 if [ -z "${get_version_warning_done}" ]; then
504 get_version_warning_done=1
297 qeerror "Could not detect kernel version." 505 qeerror "Could not detect kernel version."
298 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources." 506 qeerror "Please ensure that ${KERNEL_DIR} points to a complete set of Linux sources."
507 fi
299 return 1 508 return 1
300 fi 509 fi
301 510
302 # and in newer versions we can also pull LOCALVERSION if it is set. 511 # and in newer versions we can also pull LOCALVERSION if it is set.
303 # but before we do this, we need to find if we use a different object directory. 512 # but before we do this, we need to find if we use a different object directory.
304 # This *WILL* break if the user is using localversions, but we assume it was 513 # This *WILL* break if the user is using localversions, but we assume it was
305 # caught before this if they are. 514 # caught before this if they are.
306 [ "${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}" == "$(uname -r)" ] && \
307 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}"
308 516
309 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 517 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})"
310 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 518 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}"
311 if [ -n "${KV_OUT_DIR}" ]; 519 if [ -n "${KV_OUT_DIR}" ];
312 then 520 then
313 qeinfo "Found kernel object directory:" 521 qeinfo "Found kernel object directory:"
314 qeinfo " ${KV_OUT_DIR}" 522 qeinfo " ${KV_OUT_DIR}"
315
316 KV_LOCAL="$(get_localversion ${KV_OUT_DIR})"
317 fi 523 fi
318 # and if we STILL have not got it, then we better just set it to KV_DIR 524 # and if we STILL have not got it, then we better just set it to KV_DIR
319 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}" 525 KV_OUT_DIR="${KV_OUT_DIR:-${KV_DIR}}"
320 526
321 KV_LOCAL="${KV_LOCAL}$(get_localversion ${KV_DIR})" 527 # Grab the kernel release from the output directory.
322 if linux_config_exists; then 528 # TODO: we MUST detect kernel.release being out of date, and 'return 1' from
323 KV_LOCAL="${KV_LOCAL}$(linux_chkconfig_string LOCALVERSION)" 529 # this function.
324 KV_LOCAL="${KV_LOCAL//\"/}" 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
325 537
326 # For things like git that can append extra stuff: 538 # KV_LOCAL currently contains the full release; discard the first bits.
327 [ -e ${KV_DIR}/scripts/setlocalversion ] && 539 tmplocal=${KV_LOCAL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}}
328 linux_chkconfig_builtin LOCALVERSION_AUTO && 540
329 KV_LOCAL="${KV_LOCAL}$(sh ${KV_DIR}/scripts/setlocalversion ${KV_DIR})" 541 # If the updated local version was not changed, the tree is not prepared.
542 # Clear out KV_LOCAL in that case.
543 # TODO: this does not detect a change in the localversion part between
544 # kernel.release and the value that would be generated.
545 if [ "$KV_LOCAL" = "$tmplocal" ]; then
546 KV_LOCAL=
547 else
548 KV_LOCAL=$tmplocal
330 fi 549 fi
331 550
332 # And we should set KV_FULL to the full expanded version 551 # And we should set KV_FULL to the full expanded version
333 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}"
334 553
336 qeinfo " ${KV_FULL}" 555 qeinfo " ${KV_FULL}"
337 556
338 return 0 557 return 0
339} 558}
340 559
560# @FUNCTION: get_running_version
561# @DESCRIPTION:
562# It gets the version of the current running kernel and the result is the same as get_version() if the
563# function can find the sources.
341get_running_version() { 564get_running_version() {
342 KV_FULL=$(uname -r) 565 KV_FULL=$(uname -r)
343 566
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 $?
344 if [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then 573 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/source/Makefile ]]; then
345 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source) 574 KERNEL_DIR=$(readlink -f ${ROOT}/lib/modules/${KV_FULL}/source)
346 unset KV_FULL 575 unset KV_FULL
347 get_version 576 get_version
348 return $? 577 return $?
349 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then 578 elif [[ -f ${ROOT}/lib/modules/${KV_FULL}/build/Makefile ]]; then
352 get_version 581 get_version
353 return $? 582 return $?
354 else 583 else
355 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL}) 584 KV_MAJOR=$(get_version_component_range 1 ${KV_FULL})
356 KV_MINOR=$(get_version_component_range 2 ${KV_FULL}) 585 KV_MINOR=$(get_version_component_range 2 ${KV_FULL})
357 KV_PATCH=$(get_version_component_range 3- ${KV_FULL}) 586 KV_PATCH=$(get_version_component_range 3 ${KV_FULL})
358 KV_PATCH=${KV_PATCH//-*} 587 KV_PATCH=${KV_PATCH//-*}
359 [[ -n ${KV_FULL#*-} ]] && [[ -n ${KV_FULL//${KV_FULL#*-}} ]] \ 588 KV_EXTRA="${KV_FULL#${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}}"
360 && KV_EXTRA="-${KV_FULL#*-}"
361 fi 589 fi
362 return 0 590 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
363} 606}
364 607
365 608
366# ebuild check functions 609# ebuild check functions
367# --------------------------------------- 610# ---------------------------------------
368 611
612# @FUNCTION: check_kernel_built
613# @DESCRIPTION:
614# This function verifies that the current kernel sources have been already prepared otherwise it dies.
369check_kernel_built() { 615check_kernel_built() {
370 # if we haven't determined the version yet, we need to 616 # if we haven't determined the version yet, we need to
371 require_configured_kernel 617 require_configured_kernel
372 get_version 618 get_version
373 619
384 eerror "Then please try merging this module again." 630 eerror "Then please try merging this module again."
385 die "Kernel sources need compiling first" 631 die "Kernel sources need compiling first"
386 fi 632 fi
387} 633}
388 634
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.
389check_modules_supported() { 638check_modules_supported() {
390 # if we haven't determined the version yet, we need too. 639 # if we haven't determined the version yet, we need too.
391 require_configured_kernel 640 require_configured_kernel
392 get_version 641 get_version
393 642
398 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."
399 die "No support for external modules in ${KV_FULL} config" 648 die "No support for external modules in ${KV_FULL} config"
400 fi 649 fi
401} 650}
402 651
652# @FUNCTION: check_extra_config
653# @DESCRIPTION:
654# It checks the kernel config options specified by CONFIG_CHECK. It dies only when a required config option (i.e.
655# the prefix ~ is not used) doesn't satisfy the directive.
403check_extra_config() { 656check_extra_config() {
404 local config negate die error reworkmodulenames 657 local config negate die error reworkmodulenames
405 local soft_errors_count=0 hard_errors_count=0 config_required=0 658 local soft_errors_count=0 hard_errors_count=0 config_required=0
659 # store the value of the QA check, because otherwise we won't catch usages
660 # after if check_extra_config is called AND other direct calls are done
661 # later.
662 local old_LINUX_CONFIG_EXISTS_DONE="${_LINUX_CONFIG_EXISTS_DONE}"
663
664 # if we haven't determined the version yet, we need to
665 linux-info_get_any_version
406 666
407 # Determine if we really need a .config. The only time when we don't need 667 # Determine if we really need a .config. The only time when we don't need
408 # one is when all of the CONFIG_CHECK options are prefixed with "~". 668 # one is when all of the CONFIG_CHECK options are prefixed with "~".
409 for config in ${CONFIG_CHECK} 669 for config in ${CONFIG_CHECK}
410 do 670 do
417 if [[ ${config_required} == 0 ]]; then 677 if [[ ${config_required} == 0 ]]; then
418 # In the case where we don't require a .config, we can now bail out 678 # In the case where we don't require a .config, we can now bail out
419 # if the user has no .config as there is nothing to do. Otherwise 679 # if the user has no .config as there is nothing to do. Otherwise
420 # code later will cause a failure due to missing .config. 680 # code later will cause a failure due to missing .config.
421 if ! linux_config_exists; then 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}"
422 return 0 696 return 0
423 fi 697 fi
424 else 698 else
425 require_configured_kernel 699 require_configured_kernel
426 fi 700 fi
427 701
428 # if we haven't determined the version yet, we need too.
429 get_version
430
431 einfo "Checking for suitable kernel configuration options..." 702 einfo "Checking for suitable kernel configuration options..."
432 703
433 for config in ${CONFIG_CHECK} 704 for config in ${CONFIG_CHECK}
434 do 705 do
435 # if we specify any fatal, ensure we honor them 706 # if we specify any fatal, ensure we honor them
436 die=1 707 die=1
437 error=0 708 error=0
506 if [[ ${hard_errors_count} > 0 ]]; then 777 if [[ ${hard_errors_count} > 0 ]]; then
507 eerror "Please check to make sure these options are set correctly." 778 eerror "Please check to make sure these options are set correctly."
508 eerror "Failure to do so may cause unexpected problems." 779 eerror "Failure to do so may cause unexpected problems."
509 eerror "Once you have satisfied these options, please try merging" 780 eerror "Once you have satisfied these options, please try merging"
510 eerror "this package again." 781 eerror "this package again."
782 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
511 die "Incorrect kernel configuration options" 783 die "Incorrect kernel configuration options"
512 elif [[ ${soft_errors_count} > 0 ]]; then 784 elif [[ ${soft_errors_count} > 0 ]]; then
513 ewarn "Please check to make sure these options are set correctly." 785 ewarn "Please check to make sure these options are set correctly."
514 ewarn "Failure to do so may cause unexpected problems." 786 ewarn "Failure to do so may cause unexpected problems."
515 else 787 else
516 eend 0 788 eend 0
517 fi 789 fi
790 export LINUX_CONFIG_EXISTS_DONE="${old_LINUX_CONFIG_EXISTS_DONE}"
518} 791}
519 792
520check_zlibinflate() { 793check_zlibinflate() {
521 # if we haven't determined the version yet, we need to 794 # if we haven't determined the version yet, we need to
522 require_configured_kernel 795 require_configured_kernel
535 local DEFLATE 808 local DEFLATE
536 809
537 einfo "Determining the usability of ZLIB_INFLATE support in your kernel" 810 einfo "Determining the usability of ZLIB_INFLATE support in your kernel"
538 811
539 ebegin "checking ZLIB_INFLATE" 812 ebegin "checking ZLIB_INFLATE"
540 getfilevar_isbuiltin CONFIG_ZLIB_INFLATE ${KV_DIR}/.config 813 linux_chkconfig_builtin CONFIG_ZLIB_INFLATE
541 eend $? 814 eend $?
542 [ "$?" != 0 ] && die 815 [ "$?" != 0 ] && die
543 816
544 ebegin "checking ZLIB_DEFLATE" 817 ebegin "checking ZLIB_DEFLATE"
545 getfilevar_isbuiltin CONFIG_ZLIB_DEFLATE ${KV_DIR}/.config 818 linux_chkconfig_builtin CONFIG_ZLIB_DEFLATE
546 eend $? 819 eend $?
547 [ "$?" != 0 ] && die 820 [ "$?" != 0 ] && die
548 821
549 local LINENO_START 822 local LINENO_START
550 local LINENO_END 823 local LINENO_END
588} 861}
589 862
590################################ 863################################
591# Default pkg_setup 864# Default pkg_setup
592# Also used when inheriting linux-mod to force a get_version call 865# Also used when inheriting linux-mod to force a get_version call
593 866# @FUNCTION: linux-info_pkg_setup
867# @DESCRIPTION:
868# Force a get_version() call when inherited from linux-mod.eclass and then check if the kernel is configured
869# to support the options specified in CONFIG_CHECK (if not null)
594linux-info_pkg_setup() { 870linux-info_pkg_setup() {
595 get_version || die "Unable to calculate Linux Kernel version" 871 linux-info_get_any_version
596 872
597 if kernel_is 2 4; then 873 if kernel_is 2 4; then
598 if [ "$( gcc-major-version )" -eq "4" ] ; then 874 if [ "$( gcc-major-version )" -eq "4" ] ; then
599 echo 875 echo
600 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with" 876 ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with"

Legend:
Removed from v.1.54  
changed lines
  Added in v.1.91

  ViewVC Help
Powered by ViewVC 1.1.20