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Contents of /eclass/linux-mod.eclass

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Revision 1.21 - (show annotations) (download)
Sun Jan 16 12:24:23 2005 UTC (9 years, 6 months ago) by johnm
Branch: MAIN
Changes since 1.20: +5 -2 lines
Changing ARCH unset in src-compile

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

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