/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2007 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.84 2009/01/08 11:06:10 gengor Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.105 2011/09/06 22:54:45 vapier Exp $
4 4
5# @ECLASS: toolchain-funcs.eclass 5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
8# @BLURB: functions to query common info about the toolchain 8# @BLURB: functions to query common info about the toolchain
16___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" 16___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
17[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib 17[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
18 18
19DESCRIPTION="Based on the ${ECLASS} eclass" 19DESCRIPTION="Based on the ${ECLASS} eclass"
20 20
21# tc-getPROG <VAR [search vars]> <default> [tuple]
21tc-getPROG() { 22_tc-getPROG() {
22 local var=$1 23 local tuple=$1
24 local v var vars=$2
23 local prog=$2 25 local prog=$3
24 26
25 if [[ -n ${!var} ]] ; then 27 var=${vars%% *}
26 echo "${!var}" 28 for v in ${vars} ; do
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 "${!var}"
37}
38
39# @FUNCTION: tc-getAR
40# @USAGE: [toolchain prefix]
41# @RETURN: name of the archiver
42tc-getAR() { tc-getPROG AR ar "$@"; }
43# @FUNCTION: tc-getAS
44# @USAGE: [toolchain prefix]
45# @RETURN: name of the assembler
46tc-getAS() { tc-getPROG AS as "$@"; }
47# @FUNCTION: tc-getCC
48# @USAGE: [toolchain prefix]
49# @RETURN: name of the C compiler
50tc-getCC() { tc-getPROG CC gcc "$@"; }
51# @FUNCTION: tc-getCPP
52# @USAGE: [toolchain prefix]
53# @RETURN: name of the C preprocessor
54tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55# @FUNCTION: tc-getCXX
56# @USAGE: [toolchain prefix]
57# @RETURN: name of the C++ compiler
58tc-getCXX() { tc-getPROG CXX g++ "$@"; }
59# @FUNCTION: tc-getLD
60# @USAGE: [toolchain prefix]
61# @RETURN: name of the linker
62tc-getLD() { tc-getPROG LD ld "$@"; }
63# @FUNCTION: tc-getSTRIP
64# @USAGE: [toolchain prefix]
65# @RETURN: name of the strip program
66tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67# @FUNCTION: tc-getNM
68# @USAGE: [toolchain prefix]
69# @RETURN: name of the symbol/object thingy
70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix]
73# @RETURN: name of the archiver indexer
74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getF77
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the Fortran 77 compiler
78tc-getF77() { tc-getPROG F77 f77 "$@"; }
79# @FUNCTION: tc-getFC
80# @USAGE: [toolchain prefix]
81# @RETURN: name of the Fortran 90 compiler
82tc-getFC() { tc-getPROG FC gfortran "$@"; }
83# @FUNCTION: tc-getGCJ
84# @USAGE: [toolchain prefix]
85# @RETURN: name of the java compiler
86tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
87
88# @FUNCTION: tc-getBUILD_CC
89# @USAGE: [toolchain prefix]
90# @RETURN: name of the C compiler for building binaries to run on the build machine
91tc-getBUILD_CC() {
92 local v
93 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
94 if [[ -n ${!v} ]] ; then 29 if [[ -n ${!v} ]] ; then
95 export BUILD_CC=${!v} 30 export ${var}=${!v}
96 echo "${!v}" 31 echo "${!v}"
97 return 0 32 return 0
98 fi 33 fi
99 done 34 done
100 35
101 local search= 36 local search=
102 if [[ -n ${CBUILD} ]] ; then 37 [[ -n $4 ]] && search=$(type -p "$4-${prog}")
103 search=$(type -p ${CBUILD}-gcc) 38 [[ -z ${search} && -n ${!tuple} ]] && search=$(type -p "${!tuple}-${prog}")
104 search=${search##*/} 39 [[ -n ${search} ]] && prog=${search##*/}
105 fi
106 search=${search:-gcc}
107 40
108 export BUILD_CC=${search} 41 export ${var}=${prog}
109 echo "${search}" 42 echo "${!var}"
110} 43}
44tc-getBUILD_PROG() { _tc-getPROG CBUILD "$@"; }
45tc-getPROG() { _tc-getPROG CHOST "$@"; }
46
47# @FUNCTION: tc-getAR
48# @USAGE: [toolchain prefix]
49# @RETURN: name of the archiver
50tc-getAR() { tc-getPROG AR ar "$@"; }
51# @FUNCTION: tc-getAS
52# @USAGE: [toolchain prefix]
53# @RETURN: name of the assembler
54tc-getAS() { tc-getPROG AS as "$@"; }
55# @FUNCTION: tc-getCC
56# @USAGE: [toolchain prefix]
57# @RETURN: name of the C compiler
58tc-getCC() { tc-getPROG CC gcc "$@"; }
59# @FUNCTION: tc-getCPP
60# @USAGE: [toolchain prefix]
61# @RETURN: name of the C preprocessor
62tc-getCPP() { tc-getPROG CPP cpp "$@"; }
63# @FUNCTION: tc-getCXX
64# @USAGE: [toolchain prefix]
65# @RETURN: name of the C++ compiler
66tc-getCXX() { tc-getPROG CXX g++ "$@"; }
67# @FUNCTION: tc-getLD
68# @USAGE: [toolchain prefix]
69# @RETURN: name of the linker
70tc-getLD() { tc-getPROG LD ld "$@"; }
71# @FUNCTION: tc-getSTRIP
72# @USAGE: [toolchain prefix]
73# @RETURN: name of the strip program
74tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
75# @FUNCTION: tc-getNM
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the symbol/object thingy
78tc-getNM() { tc-getPROG NM nm "$@"; }
79# @FUNCTION: tc-getRANLIB
80# @USAGE: [toolchain prefix]
81# @RETURN: name of the archiver indexer
82tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
83# @FUNCTION: tc-getOBJCOPY
84# @USAGE: [toolchain prefix]
85# @RETURN: name of the object copier
86tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
87# @FUNCTION: tc-getF77
88# @USAGE: [toolchain prefix]
89# @RETURN: name of the Fortran 77 compiler
90tc-getF77() { tc-getPROG F77 gfortran "$@"; }
91# @FUNCTION: tc-getFC
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the Fortran 90 compiler
94tc-getFC() { tc-getPROG FC gfortran "$@"; }
95# @FUNCTION: tc-getGCJ
96# @USAGE: [toolchain prefix]
97# @RETURN: name of the java compiler
98tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
99# @FUNCTION: tc-getPKG_CONFIG
100# @USAGE: [toolchain prefix]
101# @RETURN: name of the pkg-config tool
102tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
103# @FUNCTION: tc-getRC
104# @USAGE: [toolchain prefix]
105# @RETURN: name of the Windows resource compiler
106tc-getRC() { tc-getPROG RC windres "$@"; }
107# @FUNCTION: tc-getDLLWRAP
108# @USAGE: [toolchain prefix]
109# @RETURN: name of the Windows dllwrap utility
110tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
111
112# @FUNCTION: tc-getBUILD_CC
113# @USAGE: [toolchain prefix]
114# @RETURN: name of the C compiler for building binaries to run on the build machine
115tc-getBUILD_CC() { tc-getBUILD_PROG "BUILD_CC CC_FOR_BUILD HOSTCC" gcc "$@"; }
116# @FUNCTION: tc-getBUILD_CPP
117# @USAGE: [toolchain prefix]
118# @RETURN: name of the C preprocessor for building binaries to run on the build machine
119tc-getBUILD_CPP() { tc-getBUILD_PROG "BUILD_CPP CPP_FOR_BUILD HOSTCPP" cpp "$@"; }
120# @FUNCTION: tc-getBUILD_CXX
121# @USAGE: [toolchain prefix]
122# @RETURN: name of the C++ compiler for building binaries to run on the build machine
123tc-getBUILD_CXX() { tc-getBUILD_PROG "BUILD_CXX CXX_FOR_BUILD HOSTCXX" g++ "$@"; }
111 124
112# @FUNCTION: tc-export 125# @FUNCTION: tc-export
113# @USAGE: <list of toolchain variables> 126# @USAGE: <list of toolchain variables>
114# @DESCRIPTION: 127# @DESCRIPTION:
115# Quick way to export a bunch of compiler vars at once. 128# Quick way to export a bunch of compiler vars at once.
132# See if this toolchain is a softfloat based one. 145# See if this toolchain is a softfloat based one.
133# @CODE 146# @CODE
134# The possible return values: 147# The possible return values:
135# - only: the target is always softfloat (never had fpu) 148# - only: the target is always softfloat (never had fpu)
136# - yes: the target should support softfloat 149# - yes: the target should support softfloat
137# - no: the target should support hardfloat 150# - no: the target doesn't support softfloat
138# @CODE 151# @CODE
139# This allows us to react differently where packages accept 152# This allows us to react differently where packages accept
140# softfloat flags in the case where support is optional, but 153# softfloat flags in the case where support is optional, but
141# rejects softfloat flags where the target always lacks an fpu. 154# rejects softfloat flags where the target always lacks an fpu.
142tc-is-softfloat() { 155tc-is-softfloat() {
148 && echo "yes" \ 161 && echo "yes" \
149 || echo "no" 162 || echo "no"
150 ;; 163 ;;
151 esac 164 esac
152} 165}
166
167# @FUNCTION: tc-is-hardfloat
168# @DESCRIPTION:
169# See if this toolchain is a hardfloat based one.
170# @CODE
171# The possible return values:
172# - yes: the target should support hardfloat
173# - no: the target doesn't support hardfloat
174tc-is-hardfloat() {
175 [[ ${CTARGET//_/-} == *-hardfloat-* ]] \
176 && echo "yes" \
177 || echo "no"
178}
179
180# @FUNCTION: tc-is-static-only
181# @DESCRIPTION:
182# Return shell true if the target does not support shared libs, shell false
183# otherwise.
184tc-is-static-only() {
185 local host=${CTARGET:-${CHOST}}
186
187 # *MiNT doesn't have shared libraries, only platform so far
188 return $([[ ${host} == *-mint* ]])
189}
190
191# @FUNCTION: tc-has-openmp
192# @USAGE: [toolchain prefix]
193# @DESCRIPTION:
194# See if the toolchain supports OpenMP.
195tc-has-openmp() {
196 local base="${T}/test-tc-openmp"
197 cat <<-EOF > "${base}.c"
198 #include <omp.h>
199 int main() {
200 int nthreads, tid, ret = 0;
201 #pragma omp parallel private(nthreads, tid)
202 {
203 tid = omp_get_thread_num();
204 nthreads = omp_get_num_threads(); ret += tid + nthreads;
205 }
206 return ret;
207 }
208 EOF
209 $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
210 local ret=$?
211 rm -f "${base}"*
212 return ${ret}
213}
214
215# @FUNCTION: tc-has-tls
216# @USAGE: [-s|-c|-l] [toolchain prefix]
217# @DESCRIPTION:
218# See if the toolchain supports thread local storage (TLS). Use -s to test the
219# compiler, -c to also test the assembler, and -l to also test the C library
220# (the default).
221tc-has-tls() {
222 local base="${T}/test-tc-tls"
223 cat <<-EOF > "${base}.c"
224 int foo(int *i) {
225 static __thread int j = 0;
226 return *i ? j : *i;
227 }
228 EOF
229 local flags
230 case $1 in
231 -s) flags="-S";;
232 -c) flags="-c";;
233 -l) ;;
234 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
235 esac
236 : ${flags:=-fPIC -shared -Wl,-z,defs}
237 [[ $1 == -* ]] && shift
238 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
239 local ret=$?
240 rm -f "${base}"*
241 return ${ret}
242}
243
153 244
154# Parse information from CBUILD/CHOST/CTARGET rather than 245# Parse information from CBUILD/CHOST/CTARGET rather than
155# use external variables from the profile. 246# use external variables from the profile.
156tc-ninja_magic_to_arch() { 247tc-ninja_magic_to_arch() {
157ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 248ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
181 m68*) echo m68k;; 272 m68*) echo m68k;;
182 mips*) echo mips;; 273 mips*) echo mips;;
183 nios2*) echo nios2;; 274 nios2*) echo nios2;;
184 nios*) echo nios;; 275 nios*) echo nios;;
185 powerpc*) 276 powerpc*)
186 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees 277 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
187 # have been unified into simply 'powerpc', but until 2.6.16, 278 # have been unified into simply 'powerpc', but until 2.6.16,
188 # ppc32 is still using ARCH="ppc" as default 279 # ppc32 is still using ARCH="ppc" as default
189 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then 280 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] ; then
190 echo powerpc 281 echo powerpc
191 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then 282 elif [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] ; then
192 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 283 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
193 echo powerpc 284 echo powerpc
194 else 285 else
195 echo ppc 286 echo ppc
196 fi 287 fi
197 elif [[ ${host} == powerpc64* ]] ; then 288 elif [[ ${host} == powerpc64* ]] ; then
198 echo ppc64 289 echo ppc64
199 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 290 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
200 ninj ppc64 ppc 291 ninj ppc64 ppc
201 else 292 else
202 echo ppc 293 echo ppc
203 fi 294 fi
204 ;; 295 ;;
205 s390*) echo s390;; 296 s390*) echo s390;;
206 sh64*) ninj sh64 sh;; 297 sh64*) ninj sh64 sh;;
207 sh*) echo sh;; 298 sh*) echo sh;;
208 sparc64*) ninj sparc64 sparc;; 299 sparc64*) ninj sparc64 sparc;;
209 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 300 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
210 && ninj sparc64 sparc \ 301 && ninj sparc64 sparc \
211 || echo sparc 302 || echo sparc
212 ;; 303 ;;
213 vax*) echo vax;; 304 vax*) echo vax;;
305 x86_64*freebsd*) echo amd64;;
214 x86_64*) 306 x86_64*)
215 # Starting with linux-2.6.24, the 'x86_64' and 'i386' 307 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
216 # trees have been unified into 'x86'. 308 # trees have been unified into 'x86'.
217 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then 309 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
218 echo x86 310 echo x86
264 x86_64*) echo little;; 356 x86_64*) echo little;;
265 *) echo wtf;; 357 *) echo wtf;;
266 esac 358 esac
267} 359}
268 360
361# Internal func. The first argument is the version info to expand.
362# Query the preprocessor to improve compatibility across different
363# compilers rather than maintaining a --version flag matrix. #335943
364_gcc_fullversion() {
365 local ver="$1"; shift
366 set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"`
367 eval echo "$ver"
368}
369
269# @FUNCTION: gcc-fullversion 370# @FUNCTION: gcc-fullversion
270# @RETURN: compiler version (major.minor.micro: [3.4.6]) 371# @RETURN: compiler version (major.minor.micro: [3.4.6])
271gcc-fullversion() { 372gcc-fullversion() {
272 $(tc-getCC "$@") -dumpversion 373 _gcc_fullversion '$1.$2.$3' "$@"
273} 374}
274# @FUNCTION: gcc-version 375# @FUNCTION: gcc-version
275# @RETURN: compiler version (major.minor: [3.4].6) 376# @RETURN: compiler version (major.minor: [3.4].6)
276gcc-version() { 377gcc-version() {
277 gcc-fullversion "$@" | cut -f1,2 -d. 378 _gcc_fullversion '$1.$2' "$@"
278} 379}
279# @FUNCTION: gcc-major-version 380# @FUNCTION: gcc-major-version
280# @RETURN: major compiler version (major: [3].4.6) 381# @RETURN: major compiler version (major: [3].4.6)
281gcc-major-version() { 382gcc-major-version() {
282 gcc-version "$@" | cut -f1 -d. 383 _gcc_fullversion '$1' "$@"
283} 384}
284# @FUNCTION: gcc-minor-version 385# @FUNCTION: gcc-minor-version
285# @RETURN: minor compiler version (minor: 3.[4].6) 386# @RETURN: minor compiler version (minor: 3.[4].6)
286gcc-minor-version() { 387gcc-minor-version() {
287 gcc-version "$@" | cut -f2 -d. 388 _gcc_fullversion '$2' "$@"
288} 389}
289# @FUNCTION: gcc-micro-version 390# @FUNCTION: gcc-micro-version
290# @RETURN: micro compiler version (micro: 3.4.[6]) 391# @RETURN: micro compiler version (micro: 3.4.[6])
291gcc-micro-version() { 392gcc-micro-version() {
292 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 393 _gcc_fullversion '$3' "$@"
293} 394}
294 395
295# Returns the installation directory - internal toolchain 396# Returns the installation directory - internal toolchain
296# function for use by _gcc-specs-exists (for flag-o-matic). 397# function for use by _gcc-specs-exists (for flag-o-matic).
297_gcc-install-dir() { 398_gcc-install-dir() {
382 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]) 483 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
383} 484}
384 485
385 486
386# @FUNCTION: gen_usr_ldscript 487# @FUNCTION: gen_usr_ldscript
387# @USAGE: <list of libs to create linker scripts for> 488# @USAGE: [-a] <list of libs to create linker scripts for>
388# @DESCRIPTION: 489# @DESCRIPTION:
389# This function generate linker scripts in /usr/lib for dynamic 490# This function generate linker scripts in /usr/lib for dynamic
390# libs in /lib. This is to fix linking problems when you have 491# libs in /lib. This is to fix linking problems when you have
391# the .so in /lib, and the .a in /usr/lib. What happens is that 492# the .so in /lib, and the .a in /usr/lib. What happens is that
392# in some cases when linking dynamic, the .a in /usr/lib is used 493# in some cases when linking dynamic, the .a in /usr/lib is used
396# 497#
397# Note that you should in general use the unversioned name of 498# Note that you should in general use the unversioned name of
398# the library (libfoo.so), as ldconfig should usually update it 499# the library (libfoo.so), as ldconfig should usually update it
399# correctly to point to the latest version of the library present. 500# correctly to point to the latest version of the library present.
400gen_usr_ldscript() { 501gen_usr_ldscript() {
401 local lib libdir=$(get_libdir) output_format="" 502 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
503 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
504
505 tc-is-static-only && return
506
402 # Just make sure it exists 507 # Just make sure it exists
403 dodir /usr/${libdir} 508 dodir /usr/${libdir}
509
510 if [[ $1 == "-a" ]] ; then
511 auto=true
512 shift
513 dodir /${libdir}
514 fi
404 515
405 # OUTPUT_FORMAT gives hints to the linker as to what binary format 516 # OUTPUT_FORMAT gives hints to the linker as to what binary format
406 # is referenced ... makes multilib saner 517 # is referenced ... makes multilib saner
407 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 518 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
408 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 519 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
409 520
410 for lib in "$@" ; do 521 for lib in "$@" ; do
411 if [[ ${USERLAND} == "Darwin" ]] ; then 522 local tlib
412 ewarn "Not creating fake dynamic library for $lib on Darwin;" 523 if ${auto} ; then
413 ewarn "making a symlink instead." 524 lib="lib${lib}${suffix}"
414 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
415 else 525 else
526 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
527 # This especially is for AIX where $(get_libname) can return ".a",
528 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
529 [[ -r ${ED}/${libdir}/${lib} ]] || continue
530 #TODO: better die here?
531 fi
532
533 case ${CTARGET:-${CHOST}} in
534 *-darwin*)
535 if ${auto} ; then
536 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
537 else
538 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
539 fi
540 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
541 tlib=${tlib##*/}
542
543 if ${auto} ; then
544 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
545 # some install_names are funky: they encode a version
546 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
547 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
548 fi
549 rm -f "${ED}"/${libdir}/${lib}
550 fi
551
552 # Mach-O files have an id, which is like a soname, it tells how
553 # another object linking against this lib should reference it.
554 # Since we moved the lib from usr/lib into lib this reference is
555 # wrong. Hence, we update it here. We don't configure with
556 # libdir=/lib because that messes up libtool files.
557 # Make sure we don't lose the specific version, so just modify the
558 # existing install_name
559 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
560 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
561 local nowrite=yes
562 fi
563 install_name_tool \
564 -id "${EPREFIX}"/${libdir}/${tlib} \
565 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
566 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
567 # Now as we don't use GNU binutils and our linker doesn't
568 # understand linker scripts, just create a symlink.
569 pushd "${ED}/usr/${libdir}" > /dev/null
570 ln -snf "../../${libdir}/${tlib}" "${lib}"
571 popd > /dev/null
572 ;;
573 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
574 if ${auto} ; then
575 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
576 # no way to retrieve soname on these platforms (?)
577 tlib=$(readlink "${ED}"/${libdir}/${lib})
578 tlib=${tlib##*/}
579 if [[ -z ${tlib} ]] ; then
580 # ok, apparently was not a symlink, don't remove it and
581 # just link to it
582 tlib=${lib}
583 else
584 rm -f "${ED}"/${libdir}/${lib}
585 fi
586 else
587 tlib=${lib}
588 fi
589
590 # we don't have GNU binutils on these platforms, so we symlink
591 # instead, which seems to work fine. Keep it relative, otherwise
592 # we break some QA checks in Portage
593 # on interix, the linker scripts would work fine in _most_
594 # situations. if a library links to such a linker script the
595 # absolute path to the correct library is inserted into the binary,
596 # which is wrong, since anybody linking _without_ libtool will miss
597 # some dependencies, since the stupid linker cannot find libraries
598 # hardcoded with absolute paths (as opposed to the loader, which
599 # seems to be able to do this).
600 # this has been seen while building shared-mime-info which needs
601 # libxml2, but links without libtool (and does not add libz to the
602 # command line by itself).
603 pushd "${ED}/usr/${libdir}" > /dev/null
604 ln -snf "../../${libdir}/${tlib}" "${lib}"
605 popd > /dev/null
606 ;;
607 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
608 if ${auto} ; then
609 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
610 [[ -z ${tlib} ]] && tlib=${lib}
611 tlib=${tlib##*/} # 'internal name' can have a path component
612 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
613 # some SONAMEs are funky: they encode a version before the .so
614 if [[ ${tlib} != ${lib}* ]] ; then
615 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
616 fi
617 [[ ${tlib} != ${lib} ]] &&
618 rm -f "${ED}"/${libdir}/${lib}
619 else
620 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
621 [[ -z ${tlib} ]] && tlib=${lib}
622 tlib=${tlib##*/} # 'internal name' can have a path component
623 fi
624 pushd "${ED}"/usr/${libdir} >/dev/null
625 ln -snf "../../${libdir}/${tlib}" "${lib}"
626 # need the internal name in usr/lib too, to be available at runtime
627 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
628 [[ ${tlib} != ${lib} ]] &&
629 ln -snf "../../${libdir}/${tlib}" "${tlib}"
630 popd >/dev/null
631 ;;
632 *)
633 if ${auto} ; then
634 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
635 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
636 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
637 # some SONAMEs are funky: they encode a version before the .so
638 if [[ ${tlib} != ${lib}* ]] ; then
639 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
640 fi
641 rm -f "${ED}"/${libdir}/${lib}
642 else
643 tlib=${lib}
644 fi
416 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 645 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
417 /* GNU ld script 646 /* GNU ld script
418 Since Gentoo has critical dynamic libraries 647 Since Gentoo has critical dynamic libraries in /lib, and the static versions
419 in /lib, and the static versions in /usr/lib, 648 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
420 we need to have a "fake" dynamic lib in /usr/lib, 649 run into linking problems. This "fake" dynamic lib is a linker script that
421 otherwise we run into linking problems. 650 redirects the linker to the real lib. And yes, this works in the cross-
651 compiling scenario as the sysroot-ed linker will prepend the real path.
422 652
423 See bug http://bugs.gentoo.org/4411 for more info. 653 See bug http://bugs.gentoo.org/4411 for more info.
424 */ 654 */
425 ${output_format} 655 ${output_format}
426 GROUP ( /${libdir}/${lib} ) 656 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
427 END_LDSCRIPT 657 END_LDSCRIPT
428 fi 658 ;;
659 esac
429 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 660 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
430 done 661 done
431} 662}

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