summaryrefslogtreecommitdiff
blob: b02fc93e5d261038b4f3d79840a52035fd5a5245 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/linux-mod.eclass,v 1.67 2006/07/24 20:18:09 genstef Exp $

# Description: This eclass is used to interface with linux-info in such a way
#              to provide the functionality required and initial functions
#			   required to install external modules against a kernel source
#			   tree.
#
# Maintainer: John Mylchreest <johnm@gentoo.org>
# Copyright 2004 Gentoo Linux
#
# Please direct your bugs to the current eclass maintainer :)

# A Couple of env vars are available to effect usage of this eclass
# These are as follows:
#
# Env Var		Option		Default		Description
# KERNEL_DIR		<string>	/usr/src/linux	The directory containing kernel
#							the target kernel sources.
# ECONF_PARAMS		<string>			The parameters to pass to econf.
#							If this is not set, then econf
#							isn't run.
# BUILD_PARAMS		<string>			The parameters to pass to emake.
# BUILD_TARGETS		<string>	clean modules	The build targets to pass to
#							make.
# MODULE_NAMES		<string>			This is the modules which are
#							to be built automatically using
#							the default pkg_compile/install.
#							They are explained properly
#							below. It will only make
#							BUILD_TARGETS once in any
#							directory.

# MODULE_NAMES - Detailed Overview
#
# The structure of each MODULE_NAMES entry is as follows:
# modulename(libdir:srcdir:objdir)
# for example:
# MODULE_NAMES="module_pci(pci:${S}/pci:${S}) module_usb(usb:${S}/usb:${S})"
#
# what this would do is
#  cd ${S}/pci
#  make ${BUILD_PARAMS} ${BUILD_TARGETS}
#  cd ${S}
#  insinto /lib/modules/${KV_FULL}/pci
#  doins module_pci.${KV_OBJ}
#
#  cd ${S}/usb
#  make ${BUILD_PARAMS} ${BUILD_TARGETS}
#  cd ${S}
#  insinto /lib/modules/${KV_FULL}/usb
#  doins module_usb.${KV_OBJ}
#
# if the srcdir isnt specified, it assumes ${S}
# if the libdir isnt specified, it assumes misc.
# if the objdir isnt specified, it assumes srcdir

# There is also support for automatyed modules.d file generation.
# This can be explicitly enabled by setting any of the following variables.
#
#
# MODULESD_${modulename}_ENABLED		This enables the modules.d file
#						generation even if we dont
#						specify any additional info.
# MODULESD_${modulename}_EXAMPLES		This is a bash array containing
#						a list of examples which should
#						be used. If you want us to try and
#						take a guess. Set this to "guess"
# MODULESD_${modulename}_ALIASES		This is a bash array containing
#						a list of associated aliases.
# MODULESD_${modulename}_ADDITIONS		This is a bash array containing
#						A list of additional things to
#						add to the bottom of the file.
#						This can be absolutely anything.
#						Each entry is a new line.
# MODULES_${modulename}_DOCS			This is a string list which contains
#						the full path to any associated
#						documents for $modulename

# The order of these is important as both of linux-info and eutils contain
# set_arch_to_kernel and set_arch_to_portage functions and the ones in eutils
# are deprecated in favor of the ones in linux-info.
# See http://bugs.gentoo.org/show_bug.cgi?id=127506

inherit eutils linux-info multilib
EXPORT_FUNCTIONS pkg_setup pkg_preinst pkg_postinst src_install src_compile pkg_postrm

IUSE="kernel_linux"
SLOT="0"
DESCRIPTION="Based on the $ECLASS eclass"
RDEPEND="kernel_linux? ( virtual/modutils )"
DEPEND="${RDEPEND}
	sys-apps/sed"

# eclass utilities
# ----------------------------------

check_vermagic() {
	local curr_gcc_ver=$(gcc -dumpversion)
	local tmpfile old_chost old_gcc_ver result=0

	tmpfile=`find ${KV_DIR}/ -iname "*.o.cmd" -exec grep usr/lib/gcc {} \; -quit`
	tmpfile=${tmpfile//*usr/lib}
	tmpfile=${tmpfile//\/include*}
	old_chost=${tmpfile//*gcc\/}
	old_chost=${old_chost//\/*}
	old_gcc_ver=${tmpfile//*\/}

	if [[ -z ${old_gcc_ver} || -z ${old_chost} ]]; then
		ewarn ""
		ewarn "Unable to detect what version of GCC was used to compile"
		ewarn "the kernel. Build will continue, but you may experience problems."
	elif [[ ${curr_gcc_ver} != ${old_gcc_ver} ]]; then
		ewarn ""
		ewarn "The version of GCC you are using (${curr_gcc_ver}) does"
		ewarn "not match the version of GCC used to compile the"
		ewarn "kernel (${old_gcc_ver})."
		result=1
	elif [[ ${CHOST} != ${old_chost} ]]; then
		ewarn ""
		ewarn "The current CHOST (${CHOST}) does not match the chost"
		ewarn "used when compiling the kernel (${old_chost})."
		result=1
	fi

	if [[ ${result} -gt 0 ]]; then
		ewarn ""
		ewarn "Build will not continue, because you will experience problems."
		ewarn "To fix this either change the version of GCC you wish to use"
		ewarn "to match the kernel, or recompile the kernel first."
		die "GCC Version Mismatch."
	fi
}

use_m() {
	# if we haven't determined the version yet, we need too.
	get_version;

	# if the kernel version is greater than 2.6.6 then we should use
	# M= instead of SUBDIRS=
	[ ${KV_MAJOR} -eq 2 -a ${KV_MINOR} -gt 5 -a ${KV_PATCH} -gt 5 ] && \
		return 0 || return 1
}

convert_to_m() {
	if use_m
	then
		[ ! -f "${1}" ] && \
			die "convert_to_m() requires a filename as an argument"
		ebegin "Converting ${1/${WORKDIR}\//} to use M= instead of SUBDIRS="
		sed -i 's:SUBDIRS=:M=:g' ${1}
		eend $?
	fi
}

update_depmod() {
	# if we haven't determined the version yet, we need too.
	get_version;

	ebegin "Updating module dependencies for ${KV_FULL}"
	if [ -r ${KV_OUT_DIR}/System.map ]
	then
		depmod -ae -F ${KV_OUT_DIR}/System.map -b ${ROOT} -r ${KV_FULL}
		eend $?
	else
		ewarn
		ewarn "${KV_OUT_DIR}/System.map not found."
		ewarn "You must manually update the kernel module dependencies using depmod."
		eend 1
		ewarn
	fi
}

update_modules() {
	if [ -x /sbin/modules-update ] && \
		grep -v -e "^#" -e "^$" ${D}/etc/modules.d/* >/dev/null 2>&1; then
		ebegin "Updating modules.conf"
		/sbin/modules-update
		eend $?
	fi
}

move_old_moduledb() {
	local OLDDIR=${ROOT}/usr/share/module-rebuild/
	local NEWDIR=${ROOT}/var/lib/module-rebuild/

	if [[ -f ${OLDDIR}/moduledb ]]; then
		[[ ! -d ${NEWDIR} ]] && mkdir -p ${NEWDIR}
		[[ ! -f ${NEWDIR}/moduledb ]] && \
			mv ${OLDDIR}/moduledb ${NEWDIR}/moduledb
		rm -f ${OLDDIR}/*
		rmdir ${OLDDIR}
	fi
}

update_moduledb() {
	local MODULEDB_DIR=${ROOT}/var/lib/module-rebuild/
	move_old_moduledb

	if [[ ! -f ${MODULEDB_DIR}/moduledb ]]; then
		[[ ! -d ${MODULEDB_DIR} ]] && mkdir -p ${MODULEDB_DIR}
		touch ${MODULEDB_DIR}/moduledb
	fi
	if [[ -z $(grep ${CATEGORY}/${PN}-${PVR} ${MODULEDB_DIR}/moduledb) ]]; then
		einfo "Adding module to moduledb."
		echo "a:1:${CATEGORY}/${PN}-${PVR}" >> ${MODULEDB_DIR}/moduledb
	fi
}

remove_moduledb() {
	local MODULEDB_DIR=${ROOT}/var/lib/module-rebuild/
	move_old_moduledb

	if [[ -n $(grep ${CATEGORY}/${PN}-${PVR} ${MODULEDB_DIR}/moduledb) ]]; then
		einfo "Removing ${CATEGORY}/${PN}-${PVR} from moduledb."
		sed -ie "/.*${CATEGORY}\/${PN}-${PVR}.*/d" ${MODULEDB_DIR}/moduledb
	fi
}

set_kvobj() {
	if kernel_is 2 6
	then
		KV_OBJ="ko"
	else
		KV_OBJ="o"
	fi
	# Do we really need to know this?
	# Lets silence it.
	# einfo "Using KV_OBJ=${KV_OBJ}"
}

generate_modulesd() {
	# This function will generate the neccessary modules.d file from the
	# information contained in the modules exported parms

	local 	currm_path currm currm_t t myIFS myVAR
	local 	module_docs module_enabled module_aliases \
			module_additions module_examples module_modinfo module_opts

	for currm_path in ${@}
	do
		currm=${currm_path//*\/}
		currm=$(echo ${currm} | tr '[:lower:]' '[:upper:]')
		currm_t=${currm}
		while [[ -z ${currm_t//*-*} ]]; do
			currm_t=${currm_t/-/_}
		done

		module_docs="$(eval echo \${MODULESD_${currm_t}_DOCS})"
		module_enabled="$(eval echo \${MODULESD_${currm_t}_ENABLED})"
		module_aliases="$(eval echo \${#MODULESD_${currm_t}_ALIASES[*]})"
		module_additions="$(eval echo \${#MODULESD_${currm_t}_ADDITIONS[*]})"
		module_examples="$(eval echo \${#MODULESD_${currm_t}_EXAMPLES[*]})"

		[[ ${module_aliases} -eq 0 ]] 	&& unset module_aliases
		[[ ${module_additions} -eq 0 ]]	&& unset module_additions
		[[ ${module_examples} -eq 0 ]] 	&& unset module_examples

		# If we specify we dont want it, then lets exit, otherwise we assume
		# that if its set, we do want it.
		[[ ${module_enabled} == no ]] && return 0

		# unset any unwanted variables.
		for t in ${!module_*}
		do
			[[ -z ${!t} ]] && unset ${t}
		done

		[[ -z ${!module_*} ]] && return 0

		# OK so now if we have got this far, then we know we want to continue
		# and generate the modules.d file.
		module_modinfo="$(modinfo -p ${currm_path}.${KV_OBJ})"
		module_config="${T}/modulesd-${currm}"

		ebegin "Preparing file for modules.d"
		#-----------------------------------------------------------------------
		echo "# modules.d configuration file for ${currm}" >> ${module_config}
		#-----------------------------------------------------------------------
		[[ -n ${module_docs} ]] && \
			echo "# For more information please read:" >> ${module_config}
		for t in ${module_docs}
		do
			echo "#    ${t//*\/}" >> ${module_config}
		done
		echo >> ${module_config}

		#-----------------------------------------------------------------------
		if [[ ${module_aliases} -gt 0 ]]
		then
			echo  "# Internal Aliases - Do not edit" >> ${module_config}
			echo  "# ------------------------------" >> ${module_config}

			for((t=0; t<${module_aliases}; t++))
			do
				echo "alias $(eval echo \${MODULESD_${currm}_ALIASES[$t]})" \
					>> ${module_config}
			done
			echo '' >> ${module_config}
		fi

		#-----------------------------------------------------------------------
		if [[ -n ${module_modinfo} ]]
		then
			echo >> ${module_config}
			echo  "# Configurable module parameters" >> ${module_config}
			echo  "# ------------------------------" >> ${module_config}
			myIFS="${IFS}"
			IFS="$(echo -en "\n\b")"

			for t in ${module_modinfo}
			do
				myVAR="$(echo ${t#*:} | grep -e " [0-9][ =]" | sed "s:.*\([01][= ]\).*:\1:")"
				if [[ -n ${myVAR} ]]
				then
					module_opts="${module_opts} ${t%%:*}:${myVAR}"
				fi
				echo -e "# ${t%%:*}:\t${t#*:}" >> ${module_config}
			done
			IFS="${myIFS}"
			echo '' >> ${module_config}
		fi

		#-----------------------------------------------------------------------
		if [[ $(eval echo \${MODULESD_${currm}_ALIASES[0]}) == guess ]]
		then
			# So lets do some guesswork eh?
			if [[ -n ${module_opts} ]]
			then
				echo "# For Example..." >> ${module_config}
				echo "# --------------" >> ${module_config}
				for t in ${module_opts}
				do
					echo "# options ${currm} ${t//:*}=${t//*:}" >> ${module_config}
				done
				echo '' >> ${module_config}
			fi
		elif [[ ${module_examples} -gt 0 ]]
		then
			echo "# For Example..." >> ${module_config}
			echo "# --------------" >> ${module_config}
			for((t=0; t<${module_examples}; t++))
			do
				echo "options $(eval echo \${MODULESD_${currm}_EXAMPLES[$t]})" \
					>> ${module_config}
			done
			echo '' >> ${module_config}
		fi

		#-----------------------------------------------------------------------
		if [[ ${module_additions} -gt 0 ]]
		then
			for((t=0; t<${module_additions}; t++))
			do
				echo "$(eval echo \${MODULESD_${currm}_ADDITIONS[$t]})" \
					>> ${module_config}
			done
			echo '' >> ${module_config}
		fi

		#-----------------------------------------------------------------------

		# then we install it
		insinto /etc/modules.d
		newins ${module_config} ${currm_path//*\/}

		# and install any documentation we might have.
		[[ -n ${module_docs} ]] && dodoc ${module_docs}
	done
	eend 0
	return 0
}

find_module_params() {
	local matched_offset=0 matched_opts=0 test="${@}" temp_var result
	local i=0 y=0 z=0

	for((i=0; i<=${#test}; i++))
	do
		case ${test:${i}:1} in
			\()		matched_offset[0]=${i};;
			\:)		matched_opts=$((${matched_opts} + 1));
					matched_offset[${matched_opts}]="${i}";;
			\))		matched_opts=$((${matched_opts} + 1));
					matched_offset[${matched_opts}]="${i}";;
		esac
	done

	for((i=0; i<=${matched_opts}; i++))
	do
		# i			= offset were working on
		# y			= last offset
		# z			= current offset - last offset
		# temp_var	= temporary name
		case ${i} in
			0)	tempvar=${test:0:${matched_offset[0]}};;
			*)	y=$((${matched_offset[$((${i} - 1))]} + 1))
				z=$((${matched_offset[${i}]} - ${matched_offset[$((${i} - 1))]}));
				z=$((${z} - 1))
				tempvar=${test:${y}:${z}};;
		esac

		case ${i} in
			0)	result="${result} modulename:${tempvar}";;
			1)	result="${result} libdir:${tempvar}";;
			2)	result="${result} srcdir:${tempvar}";;
			3)	result="${result} objdir:${tempvar}";;
		esac
	done

	echo ${result}
}

# default ebuild functions
# --------------------------------

linux-mod_pkg_setup() {
	linux-info_pkg_setup;
	check_kernel_built;
	strip_modulenames;
	[[ -n ${MODULE_NAMES} ]] && check_modules_supported
	set_kvobj;
	# Commented out with permission from johnm until a fixed version for arches
	# who intentionally use different kernel and userland compilers can be
	# introduced - Jason Wever <weeve@gentoo.org>, 23 Oct 2005
	#check_vermagic;
}

strip_modulenames() {
	local i
	for i in ${MODULE_IGNORE}; do
		MODULE_NAMES=${MODULE_NAMES//${i}(*}
	done
}

linux-mod_src_compile() {
	local modulename libdir srcdir objdir i n myARCH="${ARCH}" myABI="${ABI}"
	ARCH="$(tc-arch-kernel)"
	ABI="${KERNEL_ABI}"
	CC_HOSTCC=$(tc-getBUILD_CC)
	CC_CC=$(tc-getCC)

	BUILD_TARGETS=${BUILD_TARGETS:-clean module}
	strip_modulenames;
	for i in ${MODULE_NAMES}
	do
		unset libdir srcdir objdir
		for n in $(find_module_params ${i})
		do
			eval ${n/:*}=${n/*:/}
		done
		libdir=${libdir:-misc}
		srcdir=${srcdir:-${S}}
		objdir=${objdir:-${srcdir}}

		if [ ! -f "${srcdir}/.built" ];
		then
			cd ${srcdir}
			einfo "Preparing ${modulename} module"
			if [[ -n ${ECONF_PARAMS} ]]
			then
				econf ${ECONF_PARAMS} || \
				die "Unable to run econf ${ECONF_PARAMS}"
			fi

			emake HOSTCC=${CC_HOSTCC} CC=${CC_CC}\
				  ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS} \
				|| die "Unable to make ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS}."
			touch ${srcdir}/.built
			cd ${OLDPWD}
		fi
	done

	ARCH="${myARCH}"
	ABI="${myABI}"
}

linux-mod_src_install() {
	local modulename libdir srcdir objdir i n

	strip_modulenames;
	for i in ${MODULE_NAMES}
	do
		unset libdir srcdir objdir
		for n in $(find_module_params ${i})
		do
			eval ${n/:*}=${n/*:/}
		done
		libdir=${libdir:-misc}
		srcdir=${srcdir:-${S}}
		objdir=${objdir:-${srcdir}}

		einfo "Installing ${modulename} module"
		cd ${objdir} || die "${objdir} does not exist"
		insinto /lib/modules/${KV_FULL}/${libdir}
		doins ${modulename}.${KV_OBJ} || die "doins ${modulename}.${KV_OBJ} failed"
		cd ${OLDPWD}

		generate_modulesd ${objdir}/${modulename}
	done
}

linux-mod_pkg_preinst() {
	[ -d ${IMAGE}/lib/modules ] && UPDATE_DEPMOD=true || UPDATE_DEPMOD=false
	[ -d ${IMAGE}/etc/modules.d ] && UPDATE_MODULES=true || UPDATE_MODULES=false
	[ -d ${IMAGE}/lib/modules ] && UPDATE_MODULEDB=true || UPDATE_MODULEDB=false
}

linux-mod_pkg_postinst() {
	${UPDATE_DEPMOD} && update_depmod;
	${UPDATE_MODULES} && update_modules;
	${UPDATE_MODULEDB} && update_moduledb;
}

linux-mod_pkg_postrm() {
	remove_moduledb;
}