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Revision 1.2 - (show annotations) (download)
Wed Jan 12 11:13:28 2005 UTC (9 years, 8 months ago) by eradicator
Branch: MAIN
Changes since 1.1: +219 -20 lines
Added multilib functions to handle installing include files for separate ABIs.

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/multilib.eclass,v 1.1 2005/01/12 00:21:53 eradicator Exp $
4 #
5 # Author: Jeremy Huddleston <eradicator@gentoo.org>
6 #
7 # This eclass is for all functions pertaining to handling multilib.
8 # configurations.
9
10 ECLASS=multilib
11 INHERITED="$INHERITED $ECLASS"
12
13 DESCRIPTION="Based on the ${ECLASS} eclass"
14
15 DEPEND="!build? ( sys-apps/sed sys-apps/findutils sys-apps/coreutils )"
16
17 # This function simply returns the desired lib directory. With portage
18 # 2.0.51, we now have support for installing libraries to lib32/lib64
19 # to accomidate the needs of multilib systems. It's no longer a good idea
20 # to assume all libraries will end up in lib. Replace any (sane) instances
21 # where lib is named directly with $(get_libdir) if possible.
22 #
23 # Travis Tilley <lv@gentoo.org> (24 Aug 2004)
24 #
25 # Jeremy Huddleston <eradicator@gentoo.org> (23 Dec 2004):
26 # Added support for ${ABI} and ${DEFAULT_ABI}. If they're both not set,
27 # fall back on old behavior. Any profile that has these set should also
28 # depend on a newer version of portage (not yet released) which uses these
29 # over CONF_LIBDIR in econf, dolib, etc...
30 get_libdir() {
31 LIBDIR_TEST=$(type econf)
32 if [ ! -z "${CONF_LIBDIR_OVERRIDE}" ] ; then
33 # if there is an override, we want to use that... always.
34 CONF_LIBDIR="${CONF_LIBDIR_OVERRIDE}"
35 elif [ -n "$(get_abi_LIBDIR)" ]; then
36 CONF_LIBDIR="$(get_abi_LIBDIR)"
37 elif [ "${LIBDIR_TEST/CONF_LIBDIR}" == "${LIBDIR_TEST}" ]; then # we don't have CONF_LIBDIR support
38 # will be <portage-2.0.51_pre20
39 CONF_LIBDIR="lib"
40 fi
41 # and of course, default to lib if CONF_LIBDIR isnt set
42 echo ${CONF_LIBDIR:=lib}
43 unset LIBDIR_TEST
44 }
45
46 get_multilibdir() {
47 if [ -n "$(get_abi_LIBDIR)" ]; then
48 eerror "get_multilibdir called, but it shouldn't be needed with the new multilib approach. Please file a bug at http://bugs.gentoo.org and assign it to eradicator@gentoo.org"
49 exit 1
50 fi
51 echo ${CONF_MULTILIBDIR:=lib32}
52 }
53
54 # Sometimes you need to override the value returned by get_libdir. A good
55 # example of this is xorg-x11, where lib32 isnt a supported configuration,
56 # and where lib64 -must- be used on amd64 (for applications that need lib
57 # to be 32bit, such as adobe acrobat). Note that this override also bypasses
58 # portage version sanity checking.
59 # get_libdir_override expects one argument, the result get_libdir should
60 # return:
61 #
62 # get_libdir_override lib64
63 #
64 # Travis Tilley <lv@gentoo.org> (31 Aug 2004)
65 get_libdir_override() {
66 if [ -n "$(get_abi_LIBDIR)" ]; then
67 eerror "get_libdir_override called, but it shouldn't be needed with the new multilib approach. Please file a bug at http://bugs.gentoo.org and assign it to eradicator@gentoo.org"
68 exit 1
69 fi
70 CONF_LIBDIR="$1"
71 CONF_LIBDIR_OVERRIDE="$1"
72 }
73
74 # get_abi_var <VAR> [<ABI>]
75 # returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
76 #
77 # ex:
78 # CFLAGS=$(get_abi_var CFLAGS sparc32) # CFLAGS=-m32
79 #
80 # Note that the prefered method is to set CC="$(tc-getCC) $(get_abi_CFLAGS)"
81 # This will hopefully be added to portage soon...
82 #
83 # If <ABI> is not specified, ${ABI} is used.
84 # If <ABI> is not specified and ${ABI} is not defined, ${DEFAULT_ABI} is used.
85 # If <ABI> is not specified and ${ABI} and ${DEFAULT_ABI} are not defined, we return an empty string.
86 #
87 # Jeremy Huddleston <eradicator@gentoo.org>
88 get_abi_var() {
89 local flag=${1}
90 local abi
91 if [ $# -gt 1 ]; then
92 abi=${2}
93 elif [ -n "${ABI}" ]; then
94 abi=${ABI}
95 elif [ -n "${DEFAULT_ABI}" ]; then
96 abi=${DEFAULT_ABI}
97 else
98 return 1
99 fi
100
101 local var="${flag}_${abi}"
102 echo ${!var}
103 }
104
105 get_abi_CFLAGS() { get_abi_var CFLAGS ${@}; }
106 get_abi_CDEFINE() { get_abi_var CDEFINE ${@}; }
107 get_abi_LIBDIR() { get_abi_var LIBDIR ${@}; }
108
109 # Return a list of the ABIs we want to install for with
110 # the last one in the list being the default.
111 get_abi_order() {
112 local order=""
113
114 if [ -z "${MULTILIB_ABIS}" ]; then
115 echo "NOMULTILIB"
116 return 1
117 fi
118
119 if hasq multilib-pkg-force ${RESTRICT} ||
120 { hasq multilib-pkg ${FEATURES} && hasq multilib-pkg ${RESTRICT}; }; then
121 for x in ${MULTILIB_ABIS}; do
122 if [ "${x}" != "${DEFAULT_ABI}" ]; then
123 hasq ${x} ${ABI_DENY} || ordera="${ordera} ${x}"
124 fi
125 done
126 hasq ${DEFAULT_ABI} ${ABI_DENY} || order="${ordera} ${DEFAULT_ABI}"
127
128 if [ -n "${ABI_ALLOW}" ]; then
129 local ordera=""
130 for x in ${order}; do
131 if hasq ${x} ${ABI_ALLOW}; then
132 ordera="${ordera} ${x}"
133 fi
134 done
135 order="${ordera}"
136 fi
137 else
138 order="${DEFAULT_ABI}"
139 fi
140
141 if [ -z "${order}" ]; then
142 die "The ABI list is empty. Are you using a proper multilib profile? Perhaps your USE flags or MULTILIB_ABIS are too restrictive for this package."
143 fi
144
145 echo ${order}
146 return 0
147 }
148
149 # get_all_libdir()
150 # Returns a list of all the libdirs used by this profile. This includes
151 # those that might not be touched by the current ebuild.
152 get_all_libdirs() {
153 local libdirs="lib"
154 local abi
155 local dir
156
157 if [ -n "${MULTILIB_ABIS}" ]; then
158 for abi in ${MULTILIB_ABIS}; do
159 [ "$(get_abi_LIBDIR ${abi})" != "lib" ] && libdirs="${libdirs} $(get_abi_LIBDIR ${abi})"
160 done
161 elif [ -n "${CONF_LIBDIR}" ]; then
162 for dir in ${CONF_LIBDIR} ${CONF_MULTILIBDIR:=lib32}; do
163 [ "${dir}" != "lib" ] && libdirs="${libdirs} ${dir}"
164 done
165 fi
166
167 echo "${libdirs}"
168 }
169
170 # Return true if ${ABI} is the last ABI on our list (or if we're not
171 # using the new multilib configuration. This can be used to determine
172 # if we're in the last (or only) run through src_{unpack,compile,install}
173 is_final_abi() {
174 [ -z "${ABI}" ] && return 0
175 local ALL_ABIS=$(get_abi_order)
176 local LAST_ABI=${ALL_ABIS/* /}
177 [ "${LAST_ABI}" = "${ABI}" ]
178 }
179
180 # echo the number of ABIs we will be installing for
181 number_abis() {
182 get_abi_order | wc -w
183 }
184
185 # prep_ml_includes:
186 #
187 # Some includes (include/asm, glibc, etc) are ABI dependent. In this case,
188 # We can install them in different locations for each ABI and create a common
189 # header which includes the right one based on CDEFINE_${ABI}. If your
190 # package installs ABI-specific headers, just add 'prep_ml_includes' to the
191 # end of your src_install(). It takes a list of directories that include
192 # files are installed in (default is /usr/include if none are passed).
193 #
194 # Example:
195 # src_install() {
196 # ...
197 # prep_ml_includes /usr/qt/3/include
198 # }
199
200 prep_ml_includes() {
201 local dirs
202 if [ ${#} -eq 0 ]; then
203 dirs="/usr/include"
204 else
205 dirs="${@}"
206 fi
207
208 if [ $(number_abis) -gt 1 ]; then
209 local dir
210 for dir in ${dirs}; do
211 mv ${D}/${dir} ${D}/${dir}.${ABI}
212 done
213
214 if is_final_abi; then
215 for dir in ${dirs}; do
216 local args="${dir}"
217 local abi
218 for abi in $(get_abi_order); do
219 args="${args} $(get_abi_CDEFINE ${abi})${dir}.${abi}"
220 done
221 create_ml_includes ${args}
222 done
223 fi
224 fi
225 }
226
227 # If you need more control than prep_ml_includes can offer (like linux-headers
228 # for the asm-* dirs, then use create_ml_includes. The firs argument is the
229 # common dir. The remaining args are of the form <symbol>:<dir> where
230 # <symbol> is what is put in the #ifdef for choosing that dir.
231 #
232 # Ideas for this code came from debian's sparc-linux headers package.
233 #
234 # Example:
235 # create_ml_includes /usr/include/asm __sparc__:/usr/include/asm-sparc __sparc64__:/usr/include/asm-sparc64
236 # create_ml_includes /usr/include/asm __i386__:/usr/include/asm-i386 __x86_64__:/usr/include/asm-x86_64
237 create_ml_includes() {
238 local dest="${1}"
239 shift
240 local mlinfo="${@}"
241 local basedirs=$(create_ml_includes-listdirs ${mlinfo})
242
243 create_ml_includes-makedestdirs ${dest} ${basedirs}
244
245 local file
246 for file in $(create_ml_includes-allfiles ${basedirs}); do
247 local name="$(echo $file | tr a-z A-Z | sed 's:[^A-Z]:_:g')"
248 {
249 echo "/* Common header file autogenerated by create_ml_includes in multilib.eclass */"
250 echo "#ifndef __CREATE_ML_INCLUDES_STUB_${name}__"
251 echo "#define __CREATE_ML_INCLUDES_STUB_${name}__"
252 echo ""
253
254 local dir
255 for dir in ${basedirs}; do
256 if [ -f "${D}/${dir}/${file}" ]; then
257 echo "#ifdef $(create_ml_includes-sym_for_dir ${dir} ${mlinfo})"
258 echo "#include \"$(create_ml_includes-relative_between ${dest} ${dir})/${file}\""
259 echo "#endif /* $(create_ml_includes-sym_for_dir ${dir} ${mlinfo}) */"
260 echo ""
261 fi
262 done
263
264 echo "#endif /* __CREATE_ML_INCLUDES_STUB_${name}__ */"
265 } > ${D}/${dest}/${file}
266 done
267 }
268
269 # Helper function for create_ml_includes
270 # TODO: This needs to be updated to spit out relative paths...
271 create_ml_includes-relative_between() {
272 local from=${1}
273 local to=${2}
274
275 echo "${ROOT}${to}"
276 }
277
278 # Helper function for create_ml_includes
279 create_ml_includes-listdirs() {
280 local dirs
281 local data
282 for data in ${@}; do
283 dirs="${dirs} ${data/*:/}"
284 done
285 echo ${dirs:1}
286 }
287
288 # Helper function for create_ml_includes
289 create_ml_includes-makedestdirs() {
290 local dest=${1}
291 shift
292 local basedirs=${@}
293
294 dodir ${dest}
295
296 local basedir
297 for basedir in ${basedirs}; do
298 local dir
299 for dir in $(find ${D}/${basedir} -type d); do
300 dodir ${dest}/${dir/${D}\/${basedir}/}
301 done
302 done
303 }
304
305 # Helper function for create_ml_includes
306 create_ml_includes-allfiles() {
307 local basedirs=${@}
308
309 local files
310 for basedir in ${basedirs}; do
311 local file
312 for file in $(find ${D}/${basedir} -type f); do
313 echo ${file/${D}\/${basedir}\//}
314 done
315 done | sort | uniq
316 }
317
318 # Helper function for create_ml_includes
319 create_ml_includes-sym_for_dir() {
320 local dir="${1}"
321 shift
322 local data
323 for data in ${@}; do
324 if [ "${dir}" = "${data/*:/}" ]; then
325 echo ${data/:*/}
326 return 0
327 fi
328 done
329 echo "Should be here -- create_ml_includes-sym_for_dir ${1} ${@}"
330 # exit because we'll likely be called from a subshell
331 exit 1
332 }

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