/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.99 - (show annotations) (download)
Thu Apr 22 18:28:11 2010 UTC (4 years, 3 months ago) by armin76
Branch: MAIN
Changes since 1.98: +15 -2 lines
Add tc-is-hardfloat function, rename 'no' of tc-is-softfloat to 'target doesn't support softfloat', acked by vapier, bug #315987

1 # Copyright 1999-2007 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.98 2010/03/15 23:51:14 vapier Exp $
4
5 # @ECLASS: toolchain-funcs.eclass
6 # @MAINTAINER:
7 # Toolchain Ninjas <toolchain@gentoo.org>
8 # @BLURB: functions to query common info about the toolchain
9 # @DESCRIPTION:
10 # The toolchain-funcs aims to provide a complete suite of functions
11 # for gleaning useful information about the toolchain and to simplify
12 # ugly things like cross-compiling and multilib. All of this is done
13 # in such a way that you can rely on the function always returning
14 # something sane.
15
16 ___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
17 [[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
18
19 DESCRIPTION="Based on the ${ECLASS} eclass"
20
21 tc-getPROG() {
22 local var=$1
23 local prog=$2
24
25 if [[ -n ${!var} ]] ; then
26 echo "${!var}"
27 return 0
28 fi
29
30 local search=
31 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
32 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
33 [[ -n ${search} ]] && prog=${search##*/}
34
35 export ${var}=${prog}
36 echo "${!var}"
37 }
38
39 # @FUNCTION: tc-getAR
40 # @USAGE: [toolchain prefix]
41 # @RETURN: name of the archiver
42 tc-getAR() { tc-getPROG AR ar "$@"; }
43 # @FUNCTION: tc-getAS
44 # @USAGE: [toolchain prefix]
45 # @RETURN: name of the assembler
46 tc-getAS() { tc-getPROG AS as "$@"; }
47 # @FUNCTION: tc-getCC
48 # @USAGE: [toolchain prefix]
49 # @RETURN: name of the C compiler
50 tc-getCC() { tc-getPROG CC gcc "$@"; }
51 # @FUNCTION: tc-getCPP
52 # @USAGE: [toolchain prefix]
53 # @RETURN: name of the C preprocessor
54 tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55 # @FUNCTION: tc-getCXX
56 # @USAGE: [toolchain prefix]
57 # @RETURN: name of the C++ compiler
58 tc-getCXX() { tc-getPROG CXX g++ "$@"; }
59 # @FUNCTION: tc-getLD
60 # @USAGE: [toolchain prefix]
61 # @RETURN: name of the linker
62 tc-getLD() { tc-getPROG LD ld "$@"; }
63 # @FUNCTION: tc-getSTRIP
64 # @USAGE: [toolchain prefix]
65 # @RETURN: name of the strip program
66 tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67 # @FUNCTION: tc-getNM
68 # @USAGE: [toolchain prefix]
69 # @RETURN: name of the symbol/object thingy
70 tc-getNM() { tc-getPROG NM nm "$@"; }
71 # @FUNCTION: tc-getRANLIB
72 # @USAGE: [toolchain prefix]
73 # @RETURN: name of the archiver indexer
74 tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75 # @FUNCTION: tc-getOBJCOPY
76 # @USAGE: [toolchain prefix]
77 # @RETURN: name of the object copier
78 tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
79 # @FUNCTION: tc-getF77
80 # @USAGE: [toolchain prefix]
81 # @RETURN: name of the Fortran 77 compiler
82 tc-getF77() { tc-getPROG F77 f77 "$@"; }
83 # @FUNCTION: tc-getFC
84 # @USAGE: [toolchain prefix]
85 # @RETURN: name of the Fortran 90 compiler
86 tc-getFC() { tc-getPROG FC gfortran "$@"; }
87 # @FUNCTION: tc-getGCJ
88 # @USAGE: [toolchain prefix]
89 # @RETURN: name of the java compiler
90 tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91 # @FUNCTION: tc-getPKG_CONFIG
92 # @USAGE: [toolchain prefix]
93 # @RETURN: name of the pkg-config tool
94 tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
95 # @FUNCTION: tc-getRC
96 # @USAGE: [toolchain prefix]
97 # @RETURN: name of the Windows resource compiler
98 tc-getRC() { tc-getPROG RC windres "$@"; }
99 # @FUNCTION: tc-getDLLWRAP
100 # @USAGE: [toolchain prefix]
101 # @RETURN: name of the Windows dllwrap utility
102 tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
103
104 # @FUNCTION: tc-getBUILD_CC
105 # @USAGE: [toolchain prefix]
106 # @RETURN: name of the C compiler for building binaries to run on the build machine
107 tc-getBUILD_CC() {
108 local v
109 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
110 if [[ -n ${!v} ]] ; then
111 export BUILD_CC=${!v}
112 echo "${!v}"
113 return 0
114 fi
115 done
116
117 local search=
118 if [[ -n ${CBUILD} ]] ; then
119 search=$(type -p ${CBUILD}-gcc)
120 search=${search##*/}
121 fi
122 search=${search:-gcc}
123
124 export BUILD_CC=${search}
125 echo "${search}"
126 }
127
128 # @FUNCTION: tc-export
129 # @USAGE: <list of toolchain variables>
130 # @DESCRIPTION:
131 # Quick way to export a bunch of compiler vars at once.
132 tc-export() {
133 local var
134 for var in "$@" ; do
135 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
136 eval tc-get${var} > /dev/null
137 done
138 }
139
140 # @FUNCTION: tc-is-cross-compiler
141 # @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
142 tc-is-cross-compiler() {
143 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
144 }
145
146 # @FUNCTION: tc-is-softfloat
147 # @DESCRIPTION:
148 # See if this toolchain is a softfloat based one.
149 # @CODE
150 # The possible return values:
151 # - only: the target is always softfloat (never had fpu)
152 # - yes: the target should support softfloat
153 # - no: the target doesn't support softfloat
154 # @CODE
155 # This allows us to react differently where packages accept
156 # softfloat flags in the case where support is optional, but
157 # rejects softfloat flags where the target always lacks an fpu.
158 tc-is-softfloat() {
159 case ${CTARGET} in
160 bfin*|h8300*)
161 echo "only" ;;
162 *)
163 [[ ${CTARGET//_/-} == *-softfloat-* ]] \
164 && echo "yes" \
165 || echo "no"
166 ;;
167 esac
168 }
169
170 # @FUNCTION: tc-is-hardfloat
171 # @DESCRIPTION:
172 # See if this toolchain is a hardfloat based one.
173 # @CODE
174 # The possible return values:
175 # - yes: the target should support hardfloat
176 # - no: the target doesn't support hardfloat
177 tc-is-hardfloat() {
178 [[ ${CTARGET//_/-} == *-hardfloat-* ]] \
179 && echo "yes" \
180 || echo "no"
181 }
182
183 # @FUNCTION: tc-is-static-only
184 # @DESCRIPTION:
185 # Return shell true if the target does not support shared libs, shell false
186 # otherwise.
187 tc-is-static-only() {
188 local host=${CTARGET:-${CHOST}}
189
190 # *MiNT doesn't have shared libraries, only platform so far
191 return $([[ ${host} == *-mint* ]])
192 }
193
194 # @FUNCTION: tc-has-tls
195 # @USAGE: [-s|-c|-l] [toolchain prefix]
196 # @DESCRIPTION:
197 # See if the toolchain supports thread local storage (TLS). Use -s to test the
198 # compiler, -c to also test the assembler, and -l to also test the C library
199 # (the default).
200 tc-has-tls() {
201 local base="${T}/test-tc-tls"
202 cat <<-EOF > "${base}.c"
203 int foo(int *i) {
204 static __thread int j = 0;
205 return *i ? j : *i;
206 }
207 EOF
208 local flags
209 case $1 in
210 -s) flags="-S";;
211 -c) flags="-c";;
212 -l) ;;
213 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
214 esac
215 : ${flags:=-fPIC -shared -Wl,-z,defs}
216 [[ $1 == -* ]] && shift
217 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
218 local ret=$?
219 rm -f "${base}"*
220 return ${ret}
221 }
222
223
224 # Parse information from CBUILD/CHOST/CTARGET rather than
225 # use external variables from the profile.
226 tc-ninja_magic_to_arch() {
227 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
228
229 local type=$1
230 local host=$2
231 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
232
233 case ${host} in
234 alpha*) echo alpha;;
235 arm*) echo arm;;
236 avr*) ninj avr32 avr;;
237 bfin*) ninj blackfin bfin;;
238 cris*) echo cris;;
239 hppa*) ninj parisc hppa;;
240 i?86*)
241 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
242 # trees have been unified into 'x86'.
243 # FreeBSD still uses i386
244 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
245 echo i386
246 else
247 echo x86
248 fi
249 ;;
250 ia64*) echo ia64;;
251 m68*) echo m68k;;
252 mips*) echo mips;;
253 nios2*) echo nios2;;
254 nios*) echo nios;;
255 powerpc*)
256 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
257 # have been unified into simply 'powerpc', but until 2.6.16,
258 # ppc32 is still using ARCH="ppc" as default
259 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
260 echo powerpc
261 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
262 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
263 echo powerpc
264 else
265 echo ppc
266 fi
267 elif [[ ${host} == powerpc64* ]] ; then
268 echo ppc64
269 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
270 ninj ppc64 ppc
271 else
272 echo ppc
273 fi
274 ;;
275 s390*) echo s390;;
276 sh64*) ninj sh64 sh;;
277 sh*) echo sh;;
278 sparc64*) ninj sparc64 sparc;;
279 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
280 && ninj sparc64 sparc \
281 || echo sparc
282 ;;
283 vax*) echo vax;;
284 x86_64*)
285 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
286 # trees have been unified into 'x86'.
287 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
288 echo x86
289 else
290 ninj x86_64 amd64
291 fi
292 ;;
293
294 # since our usage of tc-arch is largely concerned with
295 # normalizing inputs for testing ${CTARGET}, let's filter
296 # other cross targets (mingw and such) into the unknown.
297 *) echo unknown;;
298 esac
299 }
300 # @FUNCTION: tc-arch-kernel
301 # @USAGE: [toolchain prefix]
302 # @RETURN: name of the kernel arch according to the compiler target
303 tc-arch-kernel() {
304 tc-ninja_magic_to_arch kern "$@"
305 }
306 # @FUNCTION: tc-arch
307 # @USAGE: [toolchain prefix]
308 # @RETURN: name of the portage arch according to the compiler target
309 tc-arch() {
310 tc-ninja_magic_to_arch portage "$@"
311 }
312
313 tc-endian() {
314 local host=$1
315 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
316 host=${host%%-*}
317
318 case ${host} in
319 alpha*) echo big;;
320 arm*b*) echo big;;
321 arm*) echo little;;
322 cris*) echo little;;
323 hppa*) echo big;;
324 i?86*) echo little;;
325 ia64*) echo little;;
326 m68*) echo big;;
327 mips*l*) echo little;;
328 mips*) echo big;;
329 powerpc*) echo big;;
330 s390*) echo big;;
331 sh*b*) echo big;;
332 sh*) echo little;;
333 sparc*) echo big;;
334 x86_64*) echo little;;
335 *) echo wtf;;
336 esac
337 }
338
339 # @FUNCTION: gcc-fullversion
340 # @RETURN: compiler version (major.minor.micro: [3.4.6])
341 gcc-fullversion() {
342 $(tc-getCC "$@") -dumpversion
343 }
344 # @FUNCTION: gcc-version
345 # @RETURN: compiler version (major.minor: [3.4].6)
346 gcc-version() {
347 gcc-fullversion "$@" | cut -f1,2 -d.
348 }
349 # @FUNCTION: gcc-major-version
350 # @RETURN: major compiler version (major: [3].4.6)
351 gcc-major-version() {
352 gcc-version "$@" | cut -f1 -d.
353 }
354 # @FUNCTION: gcc-minor-version
355 # @RETURN: minor compiler version (minor: 3.[4].6)
356 gcc-minor-version() {
357 gcc-version "$@" | cut -f2 -d.
358 }
359 # @FUNCTION: gcc-micro-version
360 # @RETURN: micro compiler version (micro: 3.4.[6])
361 gcc-micro-version() {
362 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
363 }
364
365 # Returns the installation directory - internal toolchain
366 # function for use by _gcc-specs-exists (for flag-o-matic).
367 _gcc-install-dir() {
368 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
369 awk '$1=="install:" {print $2}')"
370 }
371 # Returns true if the indicated specs file exists - internal toolchain
372 # function for use by flag-o-matic.
373 _gcc-specs-exists() {
374 [[ -f $(_gcc-install-dir)/$1 ]]
375 }
376
377 # Returns requested gcc specs directive unprocessed - for used by
378 # gcc-specs-directive()
379 # Note; later specs normally overwrite earlier ones; however if a later
380 # spec starts with '+' then it appends.
381 # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
382 # as "Reading <file>", in order. Strictly speaking, if there's a
383 # $(gcc_install_dir)/specs, the built-in specs aren't read, however by
384 # the same token anything from 'gcc -dumpspecs' is overridden by
385 # the contents of $(gcc_install_dir)/specs so the result is the
386 # same either way.
387 _gcc-specs-directive_raw() {
388 local cc=$(tc-getCC)
389 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
390 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
391 'BEGIN { pspec=""; spec=""; outside=1 }
392 $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
393 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
394 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
395 { spec=spec $0 }
396 END { print spec }'
397 return 0
398 }
399
400 # Return the requested gcc specs directive, with all included
401 # specs expanded.
402 # Note, it does not check for inclusion loops, which cause it
403 # to never finish - but such loops are invalid for gcc and we're
404 # assuming gcc is operational.
405 gcc-specs-directive() {
406 local directive subdname subdirective
407 directive="$(_gcc-specs-directive_raw $1)"
408 while [[ ${directive} == *%\(*\)* ]]; do
409 subdname=${directive/*%\(}
410 subdname=${subdname/\)*}
411 subdirective="$(_gcc-specs-directive_raw ${subdname})"
412 directive="${directive//\%(${subdname})/${subdirective}}"
413 done
414 echo "${directive}"
415 return 0
416 }
417
418 # Returns true if gcc sets relro
419 gcc-specs-relro() {
420 local directive
421 directive=$(gcc-specs-directive link_command)
422 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
423 }
424 # Returns true if gcc sets now
425 gcc-specs-now() {
426 local directive
427 directive=$(gcc-specs-directive link_command)
428 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
429 }
430 # Returns true if gcc builds PIEs
431 gcc-specs-pie() {
432 local directive
433 directive=$(gcc-specs-directive cc1)
434 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
435 }
436 # Returns true if gcc builds with the stack protector
437 gcc-specs-ssp() {
438 local directive
439 directive=$(gcc-specs-directive cc1)
440 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
441 }
442 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
443 gcc-specs-ssp-to-all() {
444 local directive
445 directive=$(gcc-specs-directive cc1)
446 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
447 }
448 # Returns true if gcc builds with fno-strict-overflow
449 gcc-specs-nostrict() {
450 local directive
451 directive=$(gcc-specs-directive cc1)
452 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
453 }
454
455
456 # @FUNCTION: gen_usr_ldscript
457 # @USAGE: [-a] <list of libs to create linker scripts for>
458 # @DESCRIPTION:
459 # This function generate linker scripts in /usr/lib for dynamic
460 # libs in /lib. This is to fix linking problems when you have
461 # the .so in /lib, and the .a in /usr/lib. What happens is that
462 # in some cases when linking dynamic, the .a in /usr/lib is used
463 # instead of the .so in /lib due to gcc/libtool tweaking ld's
464 # library search path. This causes many builds to fail.
465 # See bug #4411 for more info.
466 #
467 # Note that you should in general use the unversioned name of
468 # the library (libfoo.so), as ldconfig should usually update it
469 # correctly to point to the latest version of the library present.
470 gen_usr_ldscript() {
471 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
472 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
473
474 tc-is-static-only && return
475
476 # Just make sure it exists
477 dodir /usr/${libdir}
478
479 if [[ $1 == "-a" ]] ; then
480 auto=true
481 shift
482 dodir /${libdir}
483 fi
484
485 # OUTPUT_FORMAT gives hints to the linker as to what binary format
486 # is referenced ... makes multilib saner
487 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
488 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
489
490 for lib in "$@" ; do
491 local tlib
492 if ${auto} ; then
493 lib="lib${lib}${suffix}"
494 else
495 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
496 # This especially is for AIX where $(get_libname) can return ".a",
497 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
498 [[ -r ${ED}/${libdir}/${lib} ]] || continue
499 #TODO: better die here?
500 fi
501
502 case ${CTARGET:-${CHOST}} in
503 *-darwin*)
504 if ${auto} ; then
505 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
506 else
507 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
508 fi
509 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
510 tlib=${tlib##*/}
511
512 if ${auto} ; then
513 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
514 # some install_names are funky: they encode a version
515 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
516 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
517 fi
518 rm -f "${ED}"/${libdir}/${lib}
519 fi
520
521 # Mach-O files have an id, which is like a soname, it tells how
522 # another object linking against this lib should reference it.
523 # Since we moved the lib from usr/lib into lib this reference is
524 # wrong. Hence, we update it here. We don't configure with
525 # libdir=/lib because that messes up libtool files.
526 # Make sure we don't lose the specific version, so just modify the
527 # existing install_name
528 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
529 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
530 local nowrite=yes
531 fi
532 install_name_tool \
533 -id "${EPREFIX}"/${libdir}/${tlib} \
534 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
535 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
536 # Now as we don't use GNU binutils and our linker doesn't
537 # understand linker scripts, just create a symlink.
538 pushd "${ED}/usr/${libdir}" > /dev/null
539 ln -snf "../../${libdir}/${tlib}" "${lib}"
540 popd > /dev/null
541 ;;
542 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
543 if ${auto} ; then
544 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
545 # no way to retrieve soname on these platforms (?)
546 tlib=$(readlink "${ED}"/${libdir}/${lib})
547 tlib=${tlib##*/}
548 if [[ -z ${tlib} ]] ; then
549 # ok, apparently was not a symlink, don't remove it and
550 # just link to it
551 tlib=${lib}
552 else
553 rm -f "${ED}"/${libdir}/${lib}
554 fi
555 else
556 tlib=${lib}
557 fi
558
559 # we don't have GNU binutils on these platforms, so we symlink
560 # instead, which seems to work fine. Keep it relative, otherwise
561 # we break some QA checks in Portage
562 # on interix, the linker scripts would work fine in _most_
563 # situations. if a library links to such a linker script the
564 # absolute path to the correct library is inserted into the binary,
565 # which is wrong, since anybody linking _without_ libtool will miss
566 # some dependencies, since the stupid linker cannot find libraries
567 # hardcoded with absolute paths (as opposed to the loader, which
568 # seems to be able to do this).
569 # this has been seen while building shared-mime-info which needs
570 # libxml2, but links without libtool (and does not add libz to the
571 # command line by itself).
572 pushd "${ED}/usr/${libdir}" > /dev/null
573 ln -snf "../../${libdir}/${tlib}" "${lib}"
574 popd > /dev/null
575 ;;
576 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
577 if ${auto} ; then
578 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
579 [[ -z ${tlib} ]] && tlib=${lib}
580 tlib=${tlib##*/} # 'internal name' can have a path component
581 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
582 # some SONAMEs are funky: they encode a version before the .so
583 if [[ ${tlib} != ${lib}* ]] ; then
584 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
585 fi
586 [[ ${tlib} != ${lib} ]] &&
587 rm -f "${ED}"/${libdir}/${lib}
588 else
589 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
590 [[ -z ${tlib} ]] && tlib=${lib}
591 tlib=${tlib##*/} # 'internal name' can have a path component
592 fi
593 pushd "${ED}"/usr/${libdir} >/dev/null
594 ln -snf "../../${libdir}/${tlib}" "${lib}"
595 # need the internal name in usr/lib too, to be available at runtime
596 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
597 [[ ${tlib} != ${lib} ]] &&
598 ln -snf "../../${libdir}/${tlib}" "${tlib}"
599 popd >/dev/null
600 ;;
601 *)
602 if ${auto} ; then
603 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
604 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
605 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
606 # some SONAMEs are funky: they encode a version before the .so
607 if [[ ${tlib} != ${lib}* ]] ; then
608 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
609 fi
610 rm -f "${ED}"/${libdir}/${lib}
611 else
612 tlib=${lib}
613 fi
614 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
615 /* GNU ld script
616 Since Gentoo has critical dynamic libraries in /lib, and the static versions
617 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
618 run into linking problems. This "fake" dynamic lib is a linker script that
619 redirects the linker to the real lib. And yes, this works in the cross-
620 compiling scenario as the sysroot-ed linker will prepend the real path.
621
622 See bug http://bugs.gentoo.org/4411 for more info.
623 */
624 ${output_format}
625 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
626 END_LDSCRIPT
627 ;;
628 esac
629 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
630 done
631 }

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