/[gentoo-x86]/eclass/linux-mod.eclass
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Revision 1.22 - (show annotations) (download)
Sun Jan 16 22:54:56 2005 UTC (9 years, 9 months ago) by johnm
Branch: MAIN
Changes since 1.21: +22 -14 lines
few minor fixes. added support for econf if needed

1 # Copyright 1999-2004 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/linux-mod.eclass,v 1.17 2005/01/09 19:10:55 johnm Exp $
4
5 # Description: This eclass is used to interface with linux-info in such a way
6 # to provide the functionality required and initial functions
7 # required to install external modules against a kernel source
8 # tree.
9 #
10 # Maintainer: John Mylchreest <johnm@gentoo.org>
11 # Copyright 2004 Gentoo Linux
12 #
13 # Please direct your bugs to the current eclass maintainer :)
14
15 # A Couple of env vars are available to effect usage of this eclass
16 # These are as follows:
17 #
18 # Env Var Option Default Description
19 # KERNEL_DIR <string> /usr/src/linux The directory containing kernel
20 # the target kernel sources.
21 # ECONF_PARAMS <string> The parameters to pass to econf.
22 # If this is not set, then econf isn't
23 # run.
24 # BUILD_PARAMS <string> The parameters to pass to emake.
25 # BUILD_TARGETS <string> clean modules The build targets to pass to make.
26 # MODULE_NAMES <string> This is the modules which are
27 # to be built automatically using the
28 # default pkg_compile/install. They
29 # are explained properly below.
30 # It will only make BUILD_TARGETS once
31 # in any directory.
32 # NO_MODULESD <string> Set this to something to prevent
33 # modulesd file generation
34
35
36 # MODULE_NAMES - Detailed Overview
37 #
38 # The structure of each MODULE_NAMES entry is as follows:
39 # modulename(libmodulesdir:modulesourcedir)
40 # for example:
41 # MODULE_NAMES="module_pci(pci:${S}/pci) module_usb(usb:${S}/usb)"
42 #
43 # what this would do is
44 # cd ${S}/pci
45 # make ${BUILD_PARAMS} ${BUILD_TARGETS}
46 # insinto /lib/modules/${KV_FULL}/pci
47 # doins module_pci.${KV_OBJ}
48 #
49 # cd ${S}/usb
50 # make ${BUILD_PARAMS} ${BUILD_TARGETS}
51 # insinto /lib/modules/${KV_FULL}/usb
52 # doins module_usb.${KV_OBJ}
53 #
54 # if the modulessourcedir isnt specified, it assumes ${S}
55 # if the libmodulesdir isnt specified, it assumes misc.
56 # if no seperator is defined ":" then it assumes the argument is modulesourcedir
57
58 inherit linux-info
59 ECLASS=linux-mod
60 INHERITED="$INHERITED $ECLASS"
61 EXPORT_FUNCTIONS pkg_setup src_install pkg_postinst src_compile
62
63 DESCRIPTION="Based on the $ECLASS eclass"
64 SLOT=0
65 DEPEND="virtual/linux-sources
66 sys-apps/sed
67 virtual/modutils"
68
69 # eclass utilities
70 # ----------------------------------
71
72 use_m() {
73 # if we haven't determined the version yet, we need too.
74 get_version;
75
76 # if the kernel version is greater than 2.6.6 then we should use
77 # M= instead of SUBDIRS=
78 [ ${KV_MAJOR} -eq 2 -a ${KV_MINOR} -gt 5 -a ${KV_PATCH} -gt 5 ] && \
79 return 0 || return 1
80 }
81
82 convert_to_m() {
83 [ ! -f "${1}" ] && die "convert_to_m() requires a filename as an argument"
84 if use_m
85 then
86 ebegin "Converting ${1/${WORKDIR}\//} to use M= instead of SUBDIRS="
87 sed -i 's:SUBDIRS=:M=:g' ${1}
88 eend $?
89 fi
90 }
91
92 update_depmod() {
93 # if we haven't determined the version yet, we need too.
94 get_version;
95
96 ebegin "Updating module dependencies for ${KV_FULL}"
97 if [ -r ${KV_OUT_DIR}/System.map ]
98 then
99 depmod -ae -F ${KV_OUT_DIR}/System.map -b ${ROOT} -r ${KV_FULL}
100 eend $?
101 else
102 ewarn
103 ewarn "${KV_OUT_DIR}/System.map not found."
104 ewarn "You must manually update the kernel module dependencies using depmod."
105 eend 1
106 ewarn
107 fi
108 }
109
110 update_modules() {
111 if [ -x /sbin/modules-update ] ;
112 then
113 ebegin "Updating modules.conf"
114 /sbin/modules-update
115 eend $?
116 fi
117 }
118
119 set_kvobj() {
120 if kernel_is 2 6
121 then
122 KV_OBJ="ko"
123 else
124 KV_OBJ="o"
125 fi
126 einfo "Using KV_OBJ=${KV_OBJ}"
127 }
128
129 generate_modulesd() {
130 # This function will generate the neccessary modules.d file from the
131 # information contained in the modules exported parms
132
133 local selectedmodule selectedmodule_full selectedmodulevars parameter modinfop arg xifs temp
134 local module_docs module_opts module_aliases module_config
135
136 for arg in ${@}
137 do
138 selectedmodule_full="${arg}"
139 # strip the directory
140 selectedmodule="${selectedmodule_full/*\//}"
141 # convert the modulename to uppercase
142 selectedmodule="$(echo ${selectedmodule} | tr '[:lower:]' '[:upper:]')"
143
144 module_docs="MODULESD_${selectedmodule}_DOCS"
145 module_aliases="$(eval echo \$\{#MODULESD_${selectedmodule}_ALIASES[*]\})"
146 [ ${module_aliases} == 0 ] && unset module_aliases
147 module_docs="${!module_docs}"
148 modinfop="$(modinfo -p ${selectedmodule_full}.${KV_OBJ})"
149
150 # By now we know if there is anything we can use to generate a file with
151 # so unset empty vars and bail out if we find nothing.
152 for parameter in ${!module_*}
153 do
154 [ -z "${!parameter}" ] && unset ${parameter}
155 done
156 [ -z "${!module_*}" -a -z "${modinfop}" ] && return
157
158 #so now we can set the configfilevar
159 module_config="${T}/modulesd-${selectedmodule}"
160
161 # and being working on things.
162 ebegin "Preparing file for modules.d"
163 echo "# modules.d config file for ${selectedmodule}" >> ${module_config}
164 echo "# this file was automatically generated from linux-mod.eclass" >> ${module_config}
165 for temp in ${module_docs}
166 do
167 echo "# Please read ${temp/*\//} for more info" >> ${module_config}
168 done
169
170 if [ ${module_aliases} > 0 ];
171 then
172 echo >> ${module_config}
173 echo "# Internal Aliases - Do not edit" >> ${module_config}
174 echo "# ------------------------------" >> ${module_config}
175
176 (( module_aliases-- ))
177 for temp in $(seq 0 ${module_aliases})
178 do
179 echo "alias $(eval echo \$\{MODULESD_${selectedmodule}_ALIASES[$temp]\})" >> ${module_config}
180 done
181 fi
182
183 # and then stating any module parameters defined from the module
184 if [ -n "${modinfop}" ];
185 then
186 echo >> ${module_config}
187 echo "# Configurable module parameters" >> ${module_config}
188 echo "# ------------------------------" >> ${module_config}
189
190 xifs="${IFS}"
191 IFS="$(echo -en "\n\b")"
192 for parameter in ${modinfop}
193 do
194 temp="$(echo ${parameter#*:} | grep -e " [0-9][ =]" | sed "s:.*\([01][= ]\).*:\1:")"
195 if [ -n "${temp}" ];
196 then
197 module_opts="${module_opts} ${parameter%%:*}:${temp}"
198 fi
199 echo -e "# ${parameter%%:*}:\t${parameter#*:}" >> ${module_config}
200 done
201 IFS="${xifs}"
202 fi
203
204 # and any examples we can gather from them
205 if [ -n "${module_opts}" ];
206 then
207 echo >> ${module_config}
208 echo "# For Example..." >> ${module_config}
209 echo "# ------------------------------" >> ${module_config}
210 for parameter in ${module_opts}
211 do
212 echo "# options ${selectedmodule_full/*\//} ${parameter//:*}=${parameter//*:}" >> ${module_config}
213 done
214 fi
215
216 # then we install it
217 insinto /etc/modules.d
218 newins ${module_config} ${selectedmodule_full/*\//}
219
220 # and install any documentation we might have.
221 [ -n "${module_docs}" ] && dodoc ${module_docs}
222 done
223 eend 0
224 }
225
226 display_postinst() {
227 # if we haven't determined the version yet, we need too.
228 get_version;
229
230 local modulename moduledir sourcedir moduletemp file i
231
232 file=${ROOT}/etc/modules.autoload.d/kernel-${KV_MAJOR}.${KV_MINOR}
233 file=${file/\/\///}
234
235 for i in ${MODULE_IGNORE}
236 do
237 MODULE_NAMES=${MODULE_NAMES//${i}(*}
238 done
239
240 if [[ -n ${MODULE_NAMES} ]]
241 then
242 einfo "If you would like to load this module automatically upon boot"
243 einfo "please type the following as root:"
244 for i in ${MODULE_NAMES}
245 do
246 for n in $(find_module_params ${i})
247 do
248 eval ${n/:*}=${n/*:/}
249 done
250 einfo " # echo \"${modulename}\" >> ${file}"
251 done
252 einfo
253 fi
254 }
255
256 find_module_params() {
257 local matched_offset=0 matched_opts=0 test="${@}" temp_var result
258 local i=0 y=0 z=0
259
260 for((i=0; i<=${#test}; i++))
261 do
262 case ${test:${i}:1} in
263 \() matched_offset[0]=${i};;
264 \:) matched_opts=$((${matched_opts} + 1));
265 matched_offset[${matched_opts}]="${i}";;
266 \)) matched_opts=$((${matched_opts} + 1));
267 matched_offset[${matched_opts}]="${i}";;
268 esac
269 done
270
271 for((i=0; i<=${matched_opts}; i++))
272 do
273 # i = offset were working on
274 # y = last offset
275 # z = current offset - last offset
276 # temp_var = temporary name
277 case ${i} in
278 0) tempvar=${test:0:${matched_offset[0]}};;
279 *) y=$((${matched_offset[$((${i} - 1))]} + 1))
280 z=$((${matched_offset[${i}]} - ${matched_offset[$((${i} - 1))]}));
281 z=$((${z} - 1))
282 tempvar=${test:${y}:${z}};;
283 esac
284
285 case ${i} in
286 0) result="${result} modulename:${tempvar}";;
287 1) result="${result} libdir:${tempvar}";;
288 2) result="${result} srcdir:${tempvar}";;
289 3) result="${result} objdir:${tempvar}";;
290 esac
291 done
292
293 echo ${result}
294 }
295
296 # default ebuild functions
297 # --------------------------------
298
299 linux-mod_pkg_setup() {
300 linux-info_pkg_setup;
301 check_kernel_built;
302 check_modules_supported;
303 set_kvobj;
304 }
305
306 linux-mod_src_compile() {
307 local modulename libdir srcdir objdir i n myARCH=${ARCH}
308 unset ARCH
309
310 BUILD_TARGETS=${BUILD_TARGETS:-clean module}
311
312 for i in ${MODULE_IGNORE}
313 do
314 MODULE_NAMES=${MODULE_NAMES//${i}(*}
315 done
316
317 for i in ${MODULE_NAMES}
318 do
319 for n in $(find_module_params ${i})
320 do
321 eval ${n/:*}=${n/*:/}
322 done
323 libdir=${libdir:-misc}
324 srcdir=${srcdir:-${S}}
325 objdir=${objdir:-${srcdir}}
326
327 if [ ! -f "${srcdir}/.built" ];
328 then
329 cd ${srcdir}
330 einfo "Preparing ${modulename} module"
331 if [[ -n ${ECONF_PARAMS} ]]
332 then
333 econf ${ECONF_PARAMS} || \
334 die "Unable to run econf ${ECONF_PARAMS}"
335 fi
336
337 emake ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS} \
338 || die "Unable to make \
339 ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS}."
340 touch ${srcdir}/.built
341 cd ${OLDPWD}
342 fi
343 done
344
345 ARCH=${myARCH}
346 }
347
348 linux-mod_src_install() {
349 local modulename libdir srcdir objdir i n
350
351 for i in ${MODULE_IGNORE}
352 do
353 MODULE_NAMES=${MODULE_NAMES//${i}(*}
354 done
355
356 for i in ${MODULE_NAMES}
357 do
358 for n in $(find_module_params ${i})
359 do
360 eval ${n/:*}=${n/*:/}
361 done
362 libdir=${libdir:-misc}
363 srcdir=${srcdir:-${S}}
364 objdir=${objdir:-${srcdir}}
365
366 einfo "Installing ${modulename} module"
367 cd ${objdir}
368
369 insinto /lib/modules/${KV_FULL}/${libdir}
370 doins ${modulename}.${KV_OBJ}
371 cd ${OLDPWD}
372
373 [ -z "${NO_MODULESD}" ] && generate_modulesd ${objdir}/${modulename}
374 done
375 }
376
377 linux-mod_pkg_postinst() {
378 update_depmod;
379 update_modules;
380 display_postinst;
381 }

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