/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.97 - (hide annotations) (download)
Tue Dec 1 04:44:17 2009 UTC (4 years, 10 months ago) by vapier
Branch: MAIN
Changes since 1.96: +30 -1 lines
tc-has-tls: new thread local storage test function

1 vapier 1.67 # Copyright 1999-2007 Gentoo Foundation
2 vapier 1.1 # Distributed under the terms of the GNU General Public License v2
3 vapier 1.97 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.96 2009/11/27 21:31:29 vapier Exp $
4 vapier 1.74
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 vapier 1.1
16 vapier 1.69 ___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
17     [[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
18 eradicator 1.34
19 vapier 1.1 DESCRIPTION="Based on the ${ECLASS} eclass"
20    
21     tc-getPROG() {
22 vapier 1.33 local var=$1
23     local prog=$2
24 vapier 1.1
25 vapier 1.17 if [[ -n ${!var} ]] ; then
26 vapier 1.1 echo "${!var}"
27     return 0
28     fi
29    
30 eradicator 1.35 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 vapier 1.1
35 vapier 1.17 export ${var}=${prog}
36 vapier 1.1 echo "${!var}"
37     }
38    
39 vapier 1.74 # @FUNCTION: tc-getAR
40     # @USAGE: [toolchain prefix]
41     # @RETURN: name of the archiver
42 vapier 1.33 tc-getAR() { tc-getPROG AR ar "$@"; }
43 vapier 1.74 # @FUNCTION: tc-getAS
44     # @USAGE: [toolchain prefix]
45     # @RETURN: name of the assembler
46 vapier 1.33 tc-getAS() { tc-getPROG AS as "$@"; }
47 vapier 1.74 # @FUNCTION: tc-getCC
48     # @USAGE: [toolchain prefix]
49     # @RETURN: name of the C compiler
50 vapier 1.33 tc-getCC() { tc-getPROG CC gcc "$@"; }
51 vapier 1.74 # @FUNCTION: tc-getCPP
52     # @USAGE: [toolchain prefix]
53     # @RETURN: name of the C preprocessor
54 robbat2 1.58 tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55 vapier 1.74 # @FUNCTION: tc-getCXX
56     # @USAGE: [toolchain prefix]
57     # @RETURN: name of the C++ compiler
58 vapier 1.33 tc-getCXX() { tc-getPROG CXX g++ "$@"; }
59 vapier 1.74 # @FUNCTION: tc-getLD
60     # @USAGE: [toolchain prefix]
61     # @RETURN: name of the linker
62 vapier 1.33 tc-getLD() { tc-getPROG LD ld "$@"; }
63 vapier 1.74 # @FUNCTION: tc-getSTRIP
64     # @USAGE: [toolchain prefix]
65     # @RETURN: name of the strip program
66 kanaka 1.59 tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67 vapier 1.74 # @FUNCTION: tc-getNM
68     # @USAGE: [toolchain prefix]
69     # @RETURN: name of the symbol/object thingy
70 vapier 1.33 tc-getNM() { tc-getPROG NM nm "$@"; }
71 vapier 1.74 # @FUNCTION: tc-getRANLIB
72     # @USAGE: [toolchain prefix]
73     # @RETURN: name of the archiver indexer
74 vapier 1.33 tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75 kumba 1.86 # @FUNCTION: tc-getOBJCOPY
76     # @USAGE: [toolchain prefix]
77     # @RETURN: name of the object copier
78     tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
79 vapier 1.74 # @FUNCTION: tc-getF77
80     # @USAGE: [toolchain prefix]
81     # @RETURN: name of the Fortran 77 compiler
82 kanaka 1.59 tc-getF77() { tc-getPROG F77 f77 "$@"; }
83 dberkholz 1.78 # @FUNCTION: tc-getFC
84 vapier 1.74 # @USAGE: [toolchain prefix]
85     # @RETURN: name of the Fortran 90 compiler
86 dberkholz 1.78 tc-getFC() { tc-getPROG FC gfortran "$@"; }
87 vapier 1.74 # @FUNCTION: tc-getGCJ
88     # @USAGE: [toolchain prefix]
89     # @RETURN: name of the java compiler
90 vapier 1.33 tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91 vapier 1.96 # @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 vapier 1.1
96 vapier 1.74 # @FUNCTION: tc-getBUILD_CC
97     # @USAGE: [toolchain prefix]
98     # @RETURN: name of the C compiler for building binaries to run on the build machine
99 vapier 1.4 tc-getBUILD_CC() {
100 vapier 1.43 local v
101     for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
102     if [[ -n ${!v} ]] ; then
103     export BUILD_CC=${!v}
104     echo "${!v}"
105     return 0
106     fi
107     done
108 vapier 1.4
109 vapier 1.9 local search=
110 vapier 1.17 if [[ -n ${CBUILD} ]] ; then
111 vapier 1.21 search=$(type -p ${CBUILD}-gcc)
112 vapier 1.17 search=${search##*/}
113 vapier 1.9 fi
114 vapier 1.45 search=${search:-gcc}
115 vapier 1.11
116 vapier 1.17 export BUILD_CC=${search}
117 vapier 1.11 echo "${search}"
118 vapier 1.4 }
119 vapier 1.1
120 vapier 1.74 # @FUNCTION: tc-export
121     # @USAGE: <list of toolchain variables>
122     # @DESCRIPTION:
123     # Quick way to export a bunch of compiler vars at once.
124 vapier 1.10 tc-export() {
125     local var
126     for var in "$@" ; do
127 vapier 1.79 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
128 vapier 1.36 eval tc-get${var} > /dev/null
129 vapier 1.10 done
130     }
131    
132 vapier 1.74 # @FUNCTION: tc-is-cross-compiler
133     # @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
134 vapier 1.12 tc-is-cross-compiler() {
135 vapier 1.43 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
136 vapier 1.12 }
137    
138 vapier 1.74 # @FUNCTION: tc-is-softfloat
139     # @DESCRIPTION:
140 vapier 1.65 # See if this toolchain is a softfloat based one.
141 vapier 1.74 # @CODE
142 vapier 1.65 # The possible return values:
143     # - only: the target is always softfloat (never had fpu)
144     # - yes: the target should support softfloat
145     # - no: the target should support hardfloat
146 vapier 1.74 # @CODE
147 vapier 1.65 # This allows us to react differently where packages accept
148     # softfloat flags in the case where support is optional, but
149     # rejects softfloat flags where the target always lacks an fpu.
150     tc-is-softfloat() {
151     case ${CTARGET} in
152 vapier 1.66 bfin*|h8300*)
153 vapier 1.65 echo "only" ;;
154     *)
155     [[ ${CTARGET//_/-} == *-softfloat-* ]] \
156     && echo "yes" \
157     || echo "no"
158     ;;
159     esac
160     }
161 vapier 1.1
162 grobian 1.91 # @FUNCTION: tc-is-static-only
163     # @DESCRIPTION:
164     # Return shell true if the target does not support shared libs, shell false
165     # otherwise.
166     tc-is-static-only() {
167     local host=${CTARGET:-${CHOST}}
168    
169     # *MiNT doesn't have shared libraries, only platform so far
170     return $([[ ${host} == *-mint* ]])
171     }
172    
173 vapier 1.97 # @FUNCTION: tc-has-tls
174     # @USAGE: [-s|-c|-l] [toolchain prefix]
175     # @DESCRIPTION:
176     # See if the toolchain supports thread local storage (TLS). Use -s to test the
177     # compiler, -c to also test the assembler, and -l to also test the C library
178     # (the default).
179     tc-has-tls() {
180     local base="${T}/test-tc-tls"
181     cat <<-EOF > "${base}.c"
182     int foo(int *i) {
183     static __thread int j = 0;
184     return *i ? j : *i;
185     }
186     EOF
187     local flags
188     case $1 in
189     -s) flags="-S";;
190     -c) flags="-c";;
191     -l) ;;
192     -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
193     esac
194     : ${flags:=-fPIC -shared -Wl,-z,defs}
195     [[ $1 == -* ]] && shift
196     $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
197     local ret=$?
198     rm -f "${base}"*
199     return ${ret}
200     }
201    
202 grobian 1.91
203 swegener 1.40 # Parse information from CBUILD/CHOST/CTARGET rather than
204 vapier 1.20 # use external variables from the profile.
205     tc-ninja_magic_to_arch() {
206 vapier 1.21 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
207 vapier 1.19
208     local type=$1
209     local host=$2
210 eradicator 1.25 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
211 vapier 1.19
212     case ${host} in
213     alpha*) echo alpha;;
214     arm*) echo arm;;
215 vapier 1.72 avr*) ninj avr32 avr;;
216 vapier 1.53 bfin*) ninj blackfin bfin;;
217 vapier 1.47 cris*) echo cris;;
218 vapier 1.19 hppa*) ninj parisc hppa;;
219 vapier 1.75 i?86*)
220     # Starting with linux-2.6.24, the 'x86_64' and 'i386'
221     # trees have been unified into 'x86'.
222 aballier 1.77 # FreeBSD still uses i386
223     if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
224 vapier 1.75 echo i386
225     else
226     echo x86
227     fi
228     ;;
229 vapier 1.19 ia64*) echo ia64;;
230 vapier 1.23 m68*) echo m68k;;
231 vapier 1.19 mips*) echo mips;;
232 vapier 1.52 nios2*) echo nios2;;
233     nios*) echo nios;;
234 vapier 1.49 powerpc*)
235     # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
236 josejx 1.54 # have been unified into simply 'powerpc', but until 2.6.16,
237     # ppc32 is still using ARCH="ppc" as default
238     if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
239 vapier 1.49 echo powerpc
240 josejx 1.54 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
241 dostrow 1.55 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
242 josejx 1.54 echo powerpc
243     else
244     echo ppc
245 swegener 1.56 fi
246 vapier 1.49 elif [[ ${host} == powerpc64* ]] ; then
247     echo ppc64
248 dostrow 1.51 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
249     ninj ppc64 ppc
250 vapier 1.49 else
251     echo ppc
252     fi
253 dostrow 1.37 ;;
254 vapier 1.47 s390*) echo s390;;
255     sh64*) ninj sh64 sh;;
256     sh*) echo sh;;
257 vapier 1.19 sparc64*) ninj sparc64 sparc;;
258 vapier 1.28 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
259     && ninj sparc64 sparc \
260     || echo sparc
261     ;;
262 vapier 1.47 vax*) echo vax;;
263 vapier 1.75 x86_64*)
264     # Starting with linux-2.6.24, the 'x86_64' and 'i386'
265     # trees have been unified into 'x86'.
266     if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
267     echo x86
268     else
269     ninj x86_64 amd64
270     fi
271     ;;
272 vapier 1.73
273     # since our usage of tc-arch is largely concerned with
274     # normalizing inputs for testing ${CTARGET}, let's filter
275     # other cross targets (mingw and such) into the unknown.
276     *) echo unknown;;
277 vapier 1.19 esac
278     }
279 vapier 1.74 # @FUNCTION: tc-arch-kernel
280     # @USAGE: [toolchain prefix]
281     # @RETURN: name of the kernel arch according to the compiler target
282 vapier 1.20 tc-arch-kernel() {
283 vapier 1.74 tc-ninja_magic_to_arch kern "$@"
284 vapier 1.19 }
285 vapier 1.74 # @FUNCTION: tc-arch
286     # @USAGE: [toolchain prefix]
287     # @RETURN: name of the portage arch according to the compiler target
288 vapier 1.20 tc-arch() {
289 vapier 1.74 tc-ninja_magic_to_arch portage "$@"
290 vapier 1.19 }
291 vapier 1.74
292 robbat2 1.71 tc-endian() {
293     local host=$1
294     [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
295     host=${host%%-*}
296    
297     case ${host} in
298     alpha*) echo big;;
299     arm*b*) echo big;;
300     arm*) echo little;;
301     cris*) echo little;;
302     hppa*) echo big;;
303     i?86*) echo little;;
304     ia64*) echo little;;
305     m68*) echo big;;
306     mips*l*) echo little;;
307     mips*) echo big;;
308     powerpc*) echo big;;
309     s390*) echo big;;
310     sh*b*) echo big;;
311     sh*) echo little;;
312     sparc*) echo big;;
313     x86_64*) echo little;;
314     *) echo wtf;;
315     esac
316     }
317 vapier 1.19
318 vapier 1.74 # @FUNCTION: gcc-fullversion
319     # @RETURN: compiler version (major.minor.micro: [3.4.6])
320 vapier 1.1 gcc-fullversion() {
321 vapier 1.63 $(tc-getCC "$@") -dumpversion
322 vapier 1.1 }
323 vapier 1.74 # @FUNCTION: gcc-version
324     # @RETURN: compiler version (major.minor: [3.4].6)
325 vapier 1.1 gcc-version() {
326 vapier 1.63 gcc-fullversion "$@" | cut -f1,2 -d.
327 vapier 1.1 }
328 vapier 1.74 # @FUNCTION: gcc-major-version
329     # @RETURN: major compiler version (major: [3].4.6)
330 vapier 1.1 gcc-major-version() {
331 vapier 1.63 gcc-version "$@" | cut -f1 -d.
332 vapier 1.1 }
333 vapier 1.74 # @FUNCTION: gcc-minor-version
334     # @RETURN: minor compiler version (minor: 3.[4].6)
335 vapier 1.1 gcc-minor-version() {
336 vapier 1.63 gcc-version "$@" | cut -f2 -d.
337 vapier 1.1 }
338 vapier 1.74 # @FUNCTION: gcc-micro-version
339     # @RETURN: micro compiler version (micro: 3.4.[6])
340 vapier 1.1 gcc-micro-version() {
341 vapier 1.63 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
342 vapier 1.1 }
343 vapier 1.74
344 kevquinn 1.68 # Returns the installation directory - internal toolchain
345     # function for use by _gcc-specs-exists (for flag-o-matic).
346     _gcc-install-dir() {
347 vapier 1.76 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
348 kevquinn 1.68 awk '$1=="install:" {print $2}')"
349     }
350     # Returns true if the indicated specs file exists - internal toolchain
351     # function for use by flag-o-matic.
352     _gcc-specs-exists() {
353     [[ -f $(_gcc-install-dir)/$1 ]]
354     }
355 kevquinn 1.41
356 kevquinn 1.68 # Returns requested gcc specs directive unprocessed - for used by
357     # gcc-specs-directive()
358 kevquinn 1.46 # Note; later specs normally overwrite earlier ones; however if a later
359     # spec starts with '+' then it appends.
360     # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
361 kevquinn 1.68 # as "Reading <file>", in order. Strictly speaking, if there's a
362     # $(gcc_install_dir)/specs, the built-in specs aren't read, however by
363     # the same token anything from 'gcc -dumpspecs' is overridden by
364     # the contents of $(gcc_install_dir)/specs so the result is the
365     # same either way.
366     _gcc-specs-directive_raw() {
367 kevquinn 1.57 local cc=$(tc-getCC)
368     local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
369     ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
370 kevquinn 1.46 'BEGIN { pspec=""; spec=""; outside=1 }
371     $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
372 kevquinn 1.41 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
373 kevquinn 1.46 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
374     { spec=spec $0 }
375     END { print spec }'
376     return 0
377 kevquinn 1.41 }
378    
379 kevquinn 1.68 # Return the requested gcc specs directive, with all included
380     # specs expanded.
381     # Note, it does not check for inclusion loops, which cause it
382     # to never finish - but such loops are invalid for gcc and we're
383     # assuming gcc is operational.
384     gcc-specs-directive() {
385     local directive subdname subdirective
386     directive="$(_gcc-specs-directive_raw $1)"
387     while [[ ${directive} == *%\(*\)* ]]; do
388     subdname=${directive/*%\(}
389     subdname=${subdname/\)*}
390     subdirective="$(_gcc-specs-directive_raw ${subdname})"
391     directive="${directive//\%(${subdname})/${subdirective}}"
392     done
393     echo "${directive}"
394     return 0
395     }
396    
397 kevquinn 1.41 # Returns true if gcc sets relro
398     gcc-specs-relro() {
399     local directive
400     directive=$(gcc-specs-directive link_command)
401 gengor 1.84 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
402 kevquinn 1.41 }
403     # Returns true if gcc sets now
404     gcc-specs-now() {
405     local directive
406     directive=$(gcc-specs-directive link_command)
407 gengor 1.84 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
408 kevquinn 1.41 }
409     # Returns true if gcc builds PIEs
410     gcc-specs-pie() {
411     local directive
412     directive=$(gcc-specs-directive cc1)
413 gengor 1.84 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
414 kevquinn 1.41 }
415     # Returns true if gcc builds with the stack protector
416     gcc-specs-ssp() {
417     local directive
418     directive=$(gcc-specs-directive cc1)
419 gengor 1.84 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
420 kevquinn 1.41 }
421 kevquinn 1.46 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
422     gcc-specs-ssp-to-all() {
423     local directive
424     directive=$(gcc-specs-directive cc1)
425 gengor 1.84 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
426 kevquinn 1.46 }
427 gengor 1.80 # Returns true if gcc builds with fno-strict-overflow
428     gcc-specs-nostrict() {
429     local directive
430     directive=$(gcc-specs-directive cc1)
431 gengor 1.84 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
432 gengor 1.80 }
433 vapier 1.60
434    
435 vapier 1.74 # @FUNCTION: gen_usr_ldscript
436 vapier 1.85 # @USAGE: [-a] <list of libs to create linker scripts for>
437 vapier 1.74 # @DESCRIPTION:
438 vapier 1.60 # This function generate linker scripts in /usr/lib for dynamic
439     # libs in /lib. This is to fix linking problems when you have
440     # the .so in /lib, and the .a in /usr/lib. What happens is that
441     # in some cases when linking dynamic, the .a in /usr/lib is used
442     # instead of the .so in /lib due to gcc/libtool tweaking ld's
443 vapier 1.74 # library search path. This causes many builds to fail.
444 vapier 1.60 # See bug #4411 for more info.
445     #
446     # Note that you should in general use the unversioned name of
447 vapier 1.74 # the library (libfoo.so), as ldconfig should usually update it
448     # correctly to point to the latest version of the library present.
449 vapier 1.70 gen_usr_ldscript() {
450 vapier 1.85 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
451 grobian 1.91 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
452    
453     tc-is-static-only && return
454    
455 vapier 1.60 # Just make sure it exists
456     dodir /usr/${libdir}
457    
458 vapier 1.85 if [[ $1 == "-a" ]] ; then
459     auto=true
460     shift
461     dodir /${libdir}
462     fi
463    
464 vapier 1.60 # OUTPUT_FORMAT gives hints to the linker as to what binary format
465     # is referenced ... makes multilib saner
466     output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
467     [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
468    
469     for lib in "$@" ; do
470 grobian 1.91 local tlib
471     if ${auto} ; then
472     lib="lib${lib}${suffix}"
473 grobian 1.90 else
474 grobian 1.91 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
475     # This especially is for AIX where $(get_libname) can return ".a",
476     # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
477     [[ -r ${ED}/${libdir}/${lib} ]] || continue
478     #TODO: better die here?
479     fi
480    
481     case ${CTARGET:-${CHOST}} in
482     *-darwin*)
483 vapier 1.85 if ${auto} ; then
484 grobian 1.91 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
485     else
486     tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
487     fi
488     [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
489     tlib=${tlib##*/}
490    
491     if ${auto} ; then
492     mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
493 grobian 1.92 # some install_names are funky: they encode a version
494     if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
495     mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
496     fi
497 grobian 1.91 rm -f "${ED}"/${libdir}/${lib}
498     fi
499    
500     # Mach-O files have an id, which is like a soname, it tells how
501     # another object linking against this lib should reference it.
502     # Since we moved the lib from usr/lib into lib this reference is
503     # wrong. Hence, we update it here. We don't configure with
504     # libdir=/lib because that messes up libtool files.
505     # Make sure we don't lose the specific version, so just modify the
506     # existing install_name
507 grobian 1.94 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
508 grobian 1.95 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
509 grobian 1.94 local nowrite=yes
510     fi
511 grobian 1.91 install_name_tool \
512     -id "${EPREFIX}"/${libdir}/${tlib} \
513 grobian 1.94 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
514 grobian 1.95 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
515 grobian 1.91 # Now as we don't use GNU binutils and our linker doesn't
516     # understand linker scripts, just create a symlink.
517     pushd "${ED}/usr/${libdir}" > /dev/null
518     ln -snf "../../${libdir}/${tlib}" "${lib}"
519     popd > /dev/null
520     ;;
521 grobian 1.93 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
522 grobian 1.91 if ${auto} ; then
523     mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
524     # no way to retrieve soname on these platforms (?)
525     tlib=$(readlink "${ED}"/${libdir}/${lib})
526     tlib=${tlib##*/}
527     if [[ -z ${tlib} ]] ; then
528     # ok, apparently was not a symlink, don't remove it and
529     # just link to it
530     tlib=${lib}
531     else
532     rm -f "${ED}"/${libdir}/${lib}
533     fi
534     else
535     tlib=${lib}
536     fi
537    
538     # we don't have GNU binutils on these platforms, so we symlink
539     # instead, which seems to work fine. Keep it relative, otherwise
540     # we break some QA checks in Portage
541     # on interix, the linker scripts would work fine in _most_
542     # situations. if a library links to such a linker script the
543     # absolute path to the correct library is inserted into the binary,
544     # which is wrong, since anybody linking _without_ libtool will miss
545     # some dependencies, since the stupid linker cannot find libraries
546     # hardcoded with absolute paths (as opposed to the loader, which
547     # seems to be able to do this).
548     # this has been seen while building shared-mime-info which needs
549     # libxml2, but links without libtool (and does not add libz to the
550     # command line by itself).
551     pushd "${ED}/usr/${libdir}" > /dev/null
552     ln -snf "../../${libdir}/${tlib}" "${lib}"
553     popd > /dev/null
554     ;;
555 grobian 1.93 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
556     if ${auto} ; then
557     tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
558     [[ -z ${tlib} ]] && tlib=${lib}
559     tlib=${tlib##*/} # 'internal name' can have a path component
560     mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
561     # some SONAMEs are funky: they encode a version before the .so
562     if [[ ${tlib} != ${lib}* ]] ; then
563     mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
564     fi
565     [[ ${tlib} != ${lib} ]] &&
566     rm -f "${ED}"/${libdir}/${lib}
567     else
568     tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
569     [[ -z ${tlib} ]] && tlib=${lib}
570     tlib=${tlib##*/} # 'internal name' can have a path component
571     fi
572     pushd "${ED}"/usr/${libdir} >/dev/null
573     ln -snf "../../${libdir}/${tlib}" "${lib}"
574     # need the internal name in usr/lib too, to be available at runtime
575     # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
576     [[ ${tlib} != ${lib} ]] &&
577     ln -snf "../../${libdir}/${tlib}" "${tlib}"
578     popd >/dev/null
579     ;;
580 grobian 1.91 *)
581     if ${auto} ; then
582     tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
583     [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
584     mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
585 vapier 1.88 # some SONAMEs are funky: they encode a version before the .so
586     if [[ ${tlib} != ${lib}* ]] ; then
587 grobian 1.91 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
588 vapier 1.88 fi
589 grobian 1.91 rm -f "${ED}"/${libdir}/${lib}
590 vapier 1.85 else
591     tlib=${lib}
592     fi
593 grobian 1.91 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
594 grobian 1.61 /* GNU ld script
595 vapier 1.87 Since Gentoo has critical dynamic libraries in /lib, and the static versions
596     in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
597     run into linking problems. This "fake" dynamic lib is a linker script that
598     redirects the linker to the real lib. And yes, this works in the cross-
599     compiling scenario as the sysroot-ed linker will prepend the real path.
600 grobian 1.61
601     See bug http://bugs.gentoo.org/4411 for more info.
602     */
603     ${output_format}
604 grobian 1.91 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
605 grobian 1.61 END_LDSCRIPT
606 grobian 1.91 ;;
607     esac
608     fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
609 vapier 1.60 done
610     }

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