/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.101 - (hide annotations) (download)
Fri Aug 20 15:04:11 2010 UTC (4 years, 3 months ago) by dberkholz
Branch: MAIN
Changes since 1.100: +2 -2 lines
Make tc-getF77() fall back to the gcc-provided gfortran, not some nonexistent 'f77'.

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 dberkholz 1.101 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.100 2010/05/23 02:00:17 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 "$@"; }
79 vapier 1.74 # @FUNCTION: tc-getF77
80     # @USAGE: [toolchain prefix]
81     # @RETURN: name of the Fortran 77 compiler
82 dberkholz 1.101 tc-getF77() { tc-getPROG F77 gfortran "$@"; }
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 "$@"; }
95 vapier 1.98 # @FUNCTION: tc-getRC
96     # @USAGE: [toolchain prefix]
97     # @RETURN: name of the Windows resource compiler
98     tc-getRC() { tc-getPROG RC windres "$@"; }
99     # @FUNCTION: tc-getDLLWRAP
100     # @USAGE: [toolchain prefix]
101     # @RETURN: name of the Windows dllwrap utility
102     tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
103 vapier 1.1
104 vapier 1.74 # @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 vapier 1.4 tc-getBUILD_CC() {
108 vapier 1.43 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 vapier 1.4
117 vapier 1.9 local search=
118 vapier 1.17 if [[ -n ${CBUILD} ]] ; then
119 vapier 1.21 search=$(type -p ${CBUILD}-gcc)
120 vapier 1.17 search=${search##*/}
121 vapier 1.9 fi
122 vapier 1.45 search=${search:-gcc}
123 vapier 1.11
124 vapier 1.17 export BUILD_CC=${search}
125 vapier 1.11 echo "${search}"
126 vapier 1.4 }
127 vapier 1.1
128 vapier 1.74 # @FUNCTION: tc-export
129     # @USAGE: <list of toolchain variables>
130     # @DESCRIPTION:
131     # Quick way to export a bunch of compiler vars at once.
132 vapier 1.10 tc-export() {
133     local var
134     for var in "$@" ; do
135 vapier 1.79 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
136 vapier 1.36 eval tc-get${var} > /dev/null
137 vapier 1.10 done
138     }
139    
140 vapier 1.74 # @FUNCTION: tc-is-cross-compiler
141     # @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
142 vapier 1.12 tc-is-cross-compiler() {
143 vapier 1.43 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
144 vapier 1.12 }
145    
146 vapier 1.74 # @FUNCTION: tc-is-softfloat
147     # @DESCRIPTION:
148 vapier 1.65 # See if this toolchain is a softfloat based one.
149 vapier 1.74 # @CODE
150 vapier 1.65 # The possible return values:
151     # - only: the target is always softfloat (never had fpu)
152     # - yes: the target should support softfloat
153 armin76 1.99 # - no: the target doesn't support softfloat
154 vapier 1.74 # @CODE
155 vapier 1.65 # 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 vapier 1.66 bfin*|h8300*)
161 vapier 1.65 echo "only" ;;
162     *)
163     [[ ${CTARGET//_/-} == *-softfloat-* ]] \
164     && echo "yes" \
165     || echo "no"
166     ;;
167     esac
168     }
169 vapier 1.1
170 armin76 1.99 # @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     [[ ${CTARGET//_/-} == *-hardfloat-* ]] \
179     && echo "yes" \
180     || echo "no"
181     }
182    
183 grobian 1.91 # @FUNCTION: tc-is-static-only
184     # @DESCRIPTION:
185     # Return shell true if the target does not support shared libs, shell false
186     # otherwise.
187     tc-is-static-only() {
188     local host=${CTARGET:-${CHOST}}
189    
190     # *MiNT doesn't have shared libraries, only platform so far
191     return $([[ ${host} == *-mint* ]])
192     }
193    
194 vapier 1.100 # @FUNCTION: tc-has-openmp
195     # @USAGE: [toolchain prefix]
196     # @DESCRIPTION:
197     # See if the toolchain supports OpenMP.
198     tc-has-openmp() {
199     local base="${T}/test-tc-openmp"
200     cat <<-EOF > "${base}.c"
201     #include <omp.h>
202     int main() {
203     int nthreads, tid, ret = 0;
204     #pragma omp parallel private(nthreads, tid)
205     {
206     tid = omp_get_thread_num();
207     nthreads = omp_get_num_threads(); ret += tid + nthreads;
208     }
209     return ret;
210     }
211     EOF
212     $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
213     local ret=$?
214     rm -f "${base}"*
215     return ${ret}
216     }
217    
218 vapier 1.97 # @FUNCTION: tc-has-tls
219     # @USAGE: [-s|-c|-l] [toolchain prefix]
220     # @DESCRIPTION:
221     # See if the toolchain supports thread local storage (TLS). Use -s to test the
222     # compiler, -c to also test the assembler, and -l to also test the C library
223     # (the default).
224     tc-has-tls() {
225     local base="${T}/test-tc-tls"
226     cat <<-EOF > "${base}.c"
227     int foo(int *i) {
228     static __thread int j = 0;
229     return *i ? j : *i;
230     }
231     EOF
232     local flags
233     case $1 in
234     -s) flags="-S";;
235     -c) flags="-c";;
236     -l) ;;
237     -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
238     esac
239     : ${flags:=-fPIC -shared -Wl,-z,defs}
240     [[ $1 == -* ]] && shift
241     $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
242     local ret=$?
243     rm -f "${base}"*
244     return ${ret}
245     }
246    
247 grobian 1.91
248 swegener 1.40 # Parse information from CBUILD/CHOST/CTARGET rather than
249 vapier 1.20 # use external variables from the profile.
250     tc-ninja_magic_to_arch() {
251 vapier 1.21 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
252 vapier 1.19
253     local type=$1
254     local host=$2
255 eradicator 1.25 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
256 vapier 1.19
257     case ${host} in
258     alpha*) echo alpha;;
259     arm*) echo arm;;
260 vapier 1.72 avr*) ninj avr32 avr;;
261 vapier 1.53 bfin*) ninj blackfin bfin;;
262 vapier 1.47 cris*) echo cris;;
263 vapier 1.19 hppa*) ninj parisc hppa;;
264 vapier 1.75 i?86*)
265     # Starting with linux-2.6.24, the 'x86_64' and 'i386'
266     # trees have been unified into 'x86'.
267 aballier 1.77 # FreeBSD still uses i386
268     if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
269 vapier 1.75 echo i386
270     else
271     echo x86
272     fi
273     ;;
274 vapier 1.19 ia64*) echo ia64;;
275 vapier 1.23 m68*) echo m68k;;
276 vapier 1.19 mips*) echo mips;;
277 vapier 1.52 nios2*) echo nios2;;
278     nios*) echo nios;;
279 vapier 1.49 powerpc*)
280     # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
281 josejx 1.54 # have been unified into simply 'powerpc', but until 2.6.16,
282     # ppc32 is still using ARCH="ppc" as default
283     if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
284 vapier 1.49 echo powerpc
285 josejx 1.54 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
286 dostrow 1.55 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
287 josejx 1.54 echo powerpc
288     else
289     echo ppc
290 swegener 1.56 fi
291 vapier 1.49 elif [[ ${host} == powerpc64* ]] ; then
292     echo ppc64
293 dostrow 1.51 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
294     ninj ppc64 ppc
295 vapier 1.49 else
296     echo ppc
297     fi
298 dostrow 1.37 ;;
299 vapier 1.47 s390*) echo s390;;
300     sh64*) ninj sh64 sh;;
301     sh*) echo sh;;
302 vapier 1.19 sparc64*) ninj sparc64 sparc;;
303 vapier 1.28 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
304     && ninj sparc64 sparc \
305     || echo sparc
306     ;;
307 vapier 1.47 vax*) echo vax;;
308 vapier 1.75 x86_64*)
309     # Starting with linux-2.6.24, the 'x86_64' and 'i386'
310     # trees have been unified into 'x86'.
311     if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
312     echo x86
313     else
314     ninj x86_64 amd64
315     fi
316     ;;
317 vapier 1.73
318     # since our usage of tc-arch is largely concerned with
319     # normalizing inputs for testing ${CTARGET}, let's filter
320     # other cross targets (mingw and such) into the unknown.
321     *) echo unknown;;
322 vapier 1.19 esac
323     }
324 vapier 1.74 # @FUNCTION: tc-arch-kernel
325     # @USAGE: [toolchain prefix]
326     # @RETURN: name of the kernel arch according to the compiler target
327 vapier 1.20 tc-arch-kernel() {
328 vapier 1.74 tc-ninja_magic_to_arch kern "$@"
329 vapier 1.19 }
330 vapier 1.74 # @FUNCTION: tc-arch
331     # @USAGE: [toolchain prefix]
332     # @RETURN: name of the portage arch according to the compiler target
333 vapier 1.20 tc-arch() {
334 vapier 1.74 tc-ninja_magic_to_arch portage "$@"
335 vapier 1.19 }
336 vapier 1.74
337 robbat2 1.71 tc-endian() {
338     local host=$1
339     [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
340     host=${host%%-*}
341    
342     case ${host} in
343     alpha*) echo big;;
344     arm*b*) echo big;;
345     arm*) echo little;;
346     cris*) echo little;;
347     hppa*) echo big;;
348     i?86*) echo little;;
349     ia64*) echo little;;
350     m68*) echo big;;
351     mips*l*) echo little;;
352     mips*) echo big;;
353     powerpc*) echo big;;
354     s390*) echo big;;
355     sh*b*) echo big;;
356     sh*) echo little;;
357     sparc*) echo big;;
358     x86_64*) echo little;;
359     *) echo wtf;;
360     esac
361     }
362 vapier 1.19
363 vapier 1.74 # @FUNCTION: gcc-fullversion
364     # @RETURN: compiler version (major.minor.micro: [3.4.6])
365 vapier 1.1 gcc-fullversion() {
366 vapier 1.63 $(tc-getCC "$@") -dumpversion
367 vapier 1.1 }
368 vapier 1.74 # @FUNCTION: gcc-version
369     # @RETURN: compiler version (major.minor: [3.4].6)
370 vapier 1.1 gcc-version() {
371 vapier 1.63 gcc-fullversion "$@" | cut -f1,2 -d.
372 vapier 1.1 }
373 vapier 1.74 # @FUNCTION: gcc-major-version
374     # @RETURN: major compiler version (major: [3].4.6)
375 vapier 1.1 gcc-major-version() {
376 vapier 1.63 gcc-version "$@" | cut -f1 -d.
377 vapier 1.1 }
378 vapier 1.74 # @FUNCTION: gcc-minor-version
379     # @RETURN: minor compiler version (minor: 3.[4].6)
380 vapier 1.1 gcc-minor-version() {
381 vapier 1.63 gcc-version "$@" | cut -f2 -d.
382 vapier 1.1 }
383 vapier 1.74 # @FUNCTION: gcc-micro-version
384     # @RETURN: micro compiler version (micro: 3.4.[6])
385 vapier 1.1 gcc-micro-version() {
386 vapier 1.63 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
387 vapier 1.1 }
388 vapier 1.74
389 kevquinn 1.68 # Returns the installation directory - internal toolchain
390     # function for use by _gcc-specs-exists (for flag-o-matic).
391     _gcc-install-dir() {
392 vapier 1.76 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
393 kevquinn 1.68 awk '$1=="install:" {print $2}')"
394     }
395     # Returns true if the indicated specs file exists - internal toolchain
396     # function for use by flag-o-matic.
397     _gcc-specs-exists() {
398     [[ -f $(_gcc-install-dir)/$1 ]]
399     }
400 kevquinn 1.41
401 kevquinn 1.68 # Returns requested gcc specs directive unprocessed - for used by
402     # gcc-specs-directive()
403 kevquinn 1.46 # Note; later specs normally overwrite earlier ones; however if a later
404     # spec starts with '+' then it appends.
405     # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
406 kevquinn 1.68 # as "Reading <file>", in order. Strictly speaking, if there's a
407     # $(gcc_install_dir)/specs, the built-in specs aren't read, however by
408     # the same token anything from 'gcc -dumpspecs' is overridden by
409     # the contents of $(gcc_install_dir)/specs so the result is the
410     # same either way.
411     _gcc-specs-directive_raw() {
412 kevquinn 1.57 local cc=$(tc-getCC)
413     local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
414     ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
415 kevquinn 1.46 'BEGIN { pspec=""; spec=""; outside=1 }
416     $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
417 kevquinn 1.41 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
418 kevquinn 1.46 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
419     { spec=spec $0 }
420     END { print spec }'
421     return 0
422 kevquinn 1.41 }
423    
424 kevquinn 1.68 # Return the requested gcc specs directive, with all included
425     # specs expanded.
426     # Note, it does not check for inclusion loops, which cause it
427     # to never finish - but such loops are invalid for gcc and we're
428     # assuming gcc is operational.
429     gcc-specs-directive() {
430     local directive subdname subdirective
431     directive="$(_gcc-specs-directive_raw $1)"
432     while [[ ${directive} == *%\(*\)* ]]; do
433     subdname=${directive/*%\(}
434     subdname=${subdname/\)*}
435     subdirective="$(_gcc-specs-directive_raw ${subdname})"
436     directive="${directive//\%(${subdname})/${subdirective}}"
437     done
438     echo "${directive}"
439     return 0
440     }
441    
442 kevquinn 1.41 # Returns true if gcc sets relro
443     gcc-specs-relro() {
444     local directive
445     directive=$(gcc-specs-directive link_command)
446 gengor 1.84 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
447 kevquinn 1.41 }
448     # Returns true if gcc sets now
449     gcc-specs-now() {
450     local directive
451     directive=$(gcc-specs-directive link_command)
452 gengor 1.84 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
453 kevquinn 1.41 }
454     # Returns true if gcc builds PIEs
455     gcc-specs-pie() {
456     local directive
457     directive=$(gcc-specs-directive cc1)
458 gengor 1.84 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
459 kevquinn 1.41 }
460     # Returns true if gcc builds with the stack protector
461     gcc-specs-ssp() {
462     local directive
463     directive=$(gcc-specs-directive cc1)
464 gengor 1.84 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
465 kevquinn 1.41 }
466 kevquinn 1.46 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
467     gcc-specs-ssp-to-all() {
468     local directive
469     directive=$(gcc-specs-directive cc1)
470 gengor 1.84 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
471 kevquinn 1.46 }
472 gengor 1.80 # Returns true if gcc builds with fno-strict-overflow
473     gcc-specs-nostrict() {
474     local directive
475     directive=$(gcc-specs-directive cc1)
476 gengor 1.84 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
477 gengor 1.80 }
478 vapier 1.60
479    
480 vapier 1.74 # @FUNCTION: gen_usr_ldscript
481 vapier 1.85 # @USAGE: [-a] <list of libs to create linker scripts for>
482 vapier 1.74 # @DESCRIPTION:
483 vapier 1.60 # This function generate linker scripts in /usr/lib for dynamic
484     # libs in /lib. This is to fix linking problems when you have
485     # the .so in /lib, and the .a in /usr/lib. What happens is that
486     # in some cases when linking dynamic, the .a in /usr/lib is used
487     # instead of the .so in /lib due to gcc/libtool tweaking ld's
488 vapier 1.74 # library search path. This causes many builds to fail.
489 vapier 1.60 # See bug #4411 for more info.
490     #
491     # Note that you should in general use the unversioned name of
492 vapier 1.74 # the library (libfoo.so), as ldconfig should usually update it
493     # correctly to point to the latest version of the library present.
494 vapier 1.70 gen_usr_ldscript() {
495 vapier 1.85 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
496 grobian 1.91 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
497    
498     tc-is-static-only && return
499    
500 vapier 1.60 # Just make sure it exists
501     dodir /usr/${libdir}
502    
503 vapier 1.85 if [[ $1 == "-a" ]] ; then
504     auto=true
505     shift
506     dodir /${libdir}
507     fi
508    
509 vapier 1.60 # OUTPUT_FORMAT gives hints to the linker as to what binary format
510     # is referenced ... makes multilib saner
511     output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
512     [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
513    
514     for lib in "$@" ; do
515 grobian 1.91 local tlib
516     if ${auto} ; then
517     lib="lib${lib}${suffix}"
518 grobian 1.90 else
519 grobian 1.91 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
520     # This especially is for AIX where $(get_libname) can return ".a",
521     # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
522     [[ -r ${ED}/${libdir}/${lib} ]] || continue
523     #TODO: better die here?
524     fi
525    
526     case ${CTARGET:-${CHOST}} in
527     *-darwin*)
528 vapier 1.85 if ${auto} ; then
529 grobian 1.91 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
530     else
531     tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
532     fi
533     [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
534     tlib=${tlib##*/}
535    
536     if ${auto} ; then
537     mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
538 grobian 1.92 # some install_names are funky: they encode a version
539     if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
540     mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
541     fi
542 grobian 1.91 rm -f "${ED}"/${libdir}/${lib}
543     fi
544    
545     # Mach-O files have an id, which is like a soname, it tells how
546     # another object linking against this lib should reference it.
547     # Since we moved the lib from usr/lib into lib this reference is
548     # wrong. Hence, we update it here. We don't configure with
549     # libdir=/lib because that messes up libtool files.
550     # Make sure we don't lose the specific version, so just modify the
551     # existing install_name
552 grobian 1.94 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
553 grobian 1.95 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
554 grobian 1.94 local nowrite=yes
555     fi
556 grobian 1.91 install_name_tool \
557     -id "${EPREFIX}"/${libdir}/${tlib} \
558 grobian 1.94 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
559 grobian 1.95 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
560 grobian 1.91 # Now as we don't use GNU binutils and our linker doesn't
561     # understand linker scripts, just create a symlink.
562     pushd "${ED}/usr/${libdir}" > /dev/null
563     ln -snf "../../${libdir}/${tlib}" "${lib}"
564     popd > /dev/null
565     ;;
566 grobian 1.93 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
567 grobian 1.91 if ${auto} ; then
568     mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
569     # no way to retrieve soname on these platforms (?)
570     tlib=$(readlink "${ED}"/${libdir}/${lib})
571     tlib=${tlib##*/}
572     if [[ -z ${tlib} ]] ; then
573     # ok, apparently was not a symlink, don't remove it and
574     # just link to it
575     tlib=${lib}
576     else
577     rm -f "${ED}"/${libdir}/${lib}
578     fi
579     else
580     tlib=${lib}
581     fi
582    
583     # we don't have GNU binutils on these platforms, so we symlink
584     # instead, which seems to work fine. Keep it relative, otherwise
585     # we break some QA checks in Portage
586     # on interix, the linker scripts would work fine in _most_
587     # situations. if a library links to such a linker script the
588     # absolute path to the correct library is inserted into the binary,
589     # which is wrong, since anybody linking _without_ libtool will miss
590     # some dependencies, since the stupid linker cannot find libraries
591     # hardcoded with absolute paths (as opposed to the loader, which
592     # seems to be able to do this).
593     # this has been seen while building shared-mime-info which needs
594     # libxml2, but links without libtool (and does not add libz to the
595     # command line by itself).
596     pushd "${ED}/usr/${libdir}" > /dev/null
597     ln -snf "../../${libdir}/${tlib}" "${lib}"
598     popd > /dev/null
599     ;;
600 grobian 1.93 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
601     if ${auto} ; then
602     tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
603     [[ -z ${tlib} ]] && tlib=${lib}
604     tlib=${tlib##*/} # 'internal name' can have a path component
605     mv "${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     [[ ${tlib} != ${lib} ]] &&
611     rm -f "${ED}"/${libdir}/${lib}
612     else
613     tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
614     [[ -z ${tlib} ]] && tlib=${lib}
615     tlib=${tlib##*/} # 'internal name' can have a path component
616     fi
617     pushd "${ED}"/usr/${libdir} >/dev/null
618     ln -snf "../../${libdir}/${tlib}" "${lib}"
619     # need the internal name in usr/lib too, to be available at runtime
620     # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
621     [[ ${tlib} != ${lib} ]] &&
622     ln -snf "../../${libdir}/${tlib}" "${tlib}"
623     popd >/dev/null
624     ;;
625 grobian 1.91 *)
626     if ${auto} ; then
627     tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
628     [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
629     mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
630 vapier 1.88 # some SONAMEs are funky: they encode a version before the .so
631     if [[ ${tlib} != ${lib}* ]] ; then
632 grobian 1.91 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
633 vapier 1.88 fi
634 grobian 1.91 rm -f "${ED}"/${libdir}/${lib}
635 vapier 1.85 else
636     tlib=${lib}
637     fi
638 grobian 1.91 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
639 grobian 1.61 /* GNU ld script
640 vapier 1.87 Since Gentoo has critical dynamic libraries in /lib, and the static versions
641     in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
642     run into linking problems. This "fake" dynamic lib is a linker script that
643     redirects the linker to the real lib. And yes, this works in the cross-
644     compiling scenario as the sysroot-ed linker will prepend the real path.
645 grobian 1.61
646     See bug http://bugs.gentoo.org/4411 for more info.
647     */
648     ${output_format}
649 grobian 1.91 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
650 grobian 1.61 END_LDSCRIPT
651 grobian 1.91 ;;
652     esac
653     fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
654 vapier 1.60 done
655     }

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