/[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 1.70 2007/06/16 07:11:43 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.98 2010/03/15 23:51:14 vapier Exp $
4# 4
5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER:
5# Maintainer: Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
6# 8# @BLURB: functions to query common info about the toolchain
7# This eclass contains (or should) functions to get common info 9# @DESCRIPTION:
8# about the toolchain (libc/compiler/binutils/etc...) 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.
9 15
10___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" 16___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
11[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib 17[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
12 18
13DESCRIPTION="Based on the ${ECLASS} eclass" 19DESCRIPTION="Based on the ${ECLASS} eclass"
28 34
29 export ${var}=${prog} 35 export ${var}=${prog}
30 echo "${!var}" 36 echo "${!var}"
31} 37}
32 38
33# Returns the name of the archiver 39# @FUNCTION: tc-getAR
40# @USAGE: [toolchain prefix]
41# @RETURN: name of the archiver
34tc-getAR() { tc-getPROG AR ar "$@"; } 42tc-getAR() { tc-getPROG AR ar "$@"; }
35# Returns the name of the assembler 43# @FUNCTION: tc-getAS
44# @USAGE: [toolchain prefix]
45# @RETURN: name of the assembler
36tc-getAS() { tc-getPROG AS as "$@"; } 46tc-getAS() { tc-getPROG AS as "$@"; }
47# @FUNCTION: tc-getCC
48# @USAGE: [toolchain prefix]
37# Returns the name of the C compiler 49# @RETURN: name of the C compiler
38tc-getCC() { tc-getPROG CC gcc "$@"; } 50tc-getCC() { tc-getPROG CC gcc "$@"; }
51# @FUNCTION: tc-getCPP
52# @USAGE: [toolchain prefix]
39# Returns the name of the C preprocessor 53# @RETURN: name of the C preprocessor
40tc-getCPP() { tc-getPROG CPP cpp "$@"; } 54tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55# @FUNCTION: tc-getCXX
56# @USAGE: [toolchain prefix]
41# Returns the name of the C++ compiler 57# @RETURN: name of the C++ compiler
42tc-getCXX() { tc-getPROG CXX g++ "$@"; } 58tc-getCXX() { tc-getPROG CXX g++ "$@"; }
43# Returns the name of the linker 59# @FUNCTION: tc-getLD
60# @USAGE: [toolchain prefix]
61# @RETURN: name of the linker
44tc-getLD() { tc-getPROG LD ld "$@"; } 62tc-getLD() { tc-getPROG LD ld "$@"; }
45# Returns the name of the strip prog 63# @FUNCTION: tc-getSTRIP
64# @USAGE: [toolchain prefix]
65# @RETURN: name of the strip program
46tc-getSTRIP() { tc-getPROG STRIP strip "$@"; } 66tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67# @FUNCTION: tc-getNM
68# @USAGE: [toolchain prefix]
47# Returns the name of the symbol/object thingy 69# @RETURN: name of the symbol/object thingy
48tc-getNM() { tc-getPROG NM nm "$@"; } 70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix]
49# Returns the name of the archiver indexer 73# @RETURN: name of the archiver indexer
50tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getOBJCOPY
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the object copier
78tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
79# @FUNCTION: tc-getF77
80# @USAGE: [toolchain prefix]
51# Returns the name of the fortran 77 compiler 81# @RETURN: name of the Fortran 77 compiler
52tc-getF77() { tc-getPROG F77 f77 "$@"; } 82tc-getF77() { tc-getPROG F77 f77 "$@"; }
83# @FUNCTION: tc-getFC
84# @USAGE: [toolchain prefix]
53# Returns the name of the fortran 90 compiler 85# @RETURN: name of the Fortran 90 compiler
54tc-getF90() { tc-getPROG F90 gfortran "$@"; } 86tc-getFC() { tc-getPROG FC gfortran "$@"; }
55# Returns the name of the fortran compiler 87# @FUNCTION: tc-getGCJ
56tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; } 88# @USAGE: [toolchain prefix]
57# Returns the name of the java compiler 89# @RETURN: name of the java compiler
58tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91# @FUNCTION: tc-getPKG_CONFIG
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the pkg-config tool
94tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
95# @FUNCTION: tc-getRC
96# @USAGE: [toolchain prefix]
97# @RETURN: name of the Windows resource compiler
98tc-getRC() { tc-getPROG RC windres "$@"; }
99# @FUNCTION: tc-getDLLWRAP
100# @USAGE: [toolchain prefix]
101# @RETURN: name of the Windows dllwrap utility
102tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
59 103
60# Returns the name of the C compiler for build 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
61tc-getBUILD_CC() { 107tc-getBUILD_CC() {
62 local v 108 local v
63 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do 109 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
64 if [[ -n ${!v} ]] ; then 110 if [[ -n ${!v} ]] ; then
65 export BUILD_CC=${!v} 111 export BUILD_CC=${!v}
77 123
78 export BUILD_CC=${search} 124 export BUILD_CC=${search}
79 echo "${search}" 125 echo "${search}"
80} 126}
81 127
128# @FUNCTION: tc-export
129# @USAGE: <list of toolchain variables>
130# @DESCRIPTION:
82# Quick way to export a bunch of vars at once 131# Quick way to export a bunch of compiler vars at once.
83tc-export() { 132tc-export() {
84 local var 133 local var
85 for var in "$@" ; do 134 for var in "$@" ; do
135 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
86 eval tc-get${var} > /dev/null 136 eval tc-get${var} > /dev/null
87 done 137 done
88} 138}
89 139
90# A simple way to see if we're using a cross-compiler ... 140# @FUNCTION: tc-is-cross-compiler
141# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
91tc-is-cross-compiler() { 142tc-is-cross-compiler() {
92 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 143 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
93} 144}
94 145
146# @FUNCTION: tc-is-softfloat
147# @DESCRIPTION:
95# See if this toolchain is a softfloat based one. 148# See if this toolchain is a softfloat based one.
149# @CODE
96# The possible return values: 150# The possible return values:
97# - only: the target is always softfloat (never had fpu) 151# - only: the target is always softfloat (never had fpu)
98# - yes: the target should support softfloat 152# - yes: the target should support softfloat
99# - no: the target should support hardfloat 153# - no: the target should support hardfloat
154# @CODE
100# This allows us to react differently where packages accept 155# This allows us to react differently where packages accept
101# softfloat flags in the case where support is optional, but 156# softfloat flags in the case where support is optional, but
102# rejects softfloat flags where the target always lacks an fpu. 157# rejects softfloat flags where the target always lacks an fpu.
103tc-is-softfloat() { 158tc-is-softfloat() {
104 case ${CTARGET} in 159 case ${CTARGET} in
110 || echo "no" 165 || echo "no"
111 ;; 166 ;;
112 esac 167 esac
113} 168}
114 169
170# @FUNCTION: tc-is-static-only
171# @DESCRIPTION:
172# Return shell true if the target does not support shared libs, shell false
173# otherwise.
174tc-is-static-only() {
175 local host=${CTARGET:-${CHOST}}
176
177 # *MiNT doesn't have shared libraries, only platform so far
178 return $([[ ${host} == *-mint* ]])
179}
180
181# @FUNCTION: tc-has-tls
182# @USAGE: [-s|-c|-l] [toolchain prefix]
183# @DESCRIPTION:
184# See if the toolchain supports thread local storage (TLS). Use -s to test the
185# compiler, -c to also test the assembler, and -l to also test the C library
186# (the default).
187tc-has-tls() {
188 local base="${T}/test-tc-tls"
189 cat <<-EOF > "${base}.c"
190 int foo(int *i) {
191 static __thread int j = 0;
192 return *i ? j : *i;
193 }
194 EOF
195 local flags
196 case $1 in
197 -s) flags="-S";;
198 -c) flags="-c";;
199 -l) ;;
200 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
201 esac
202 : ${flags:=-fPIC -shared -Wl,-z,defs}
203 [[ $1 == -* ]] && shift
204 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
205 local ret=$?
206 rm -f "${base}"*
207 return ${ret}
208}
209
210
115# Parse information from CBUILD/CHOST/CTARGET rather than 211# Parse information from CBUILD/CHOST/CTARGET rather than
116# use external variables from the profile. 212# use external variables from the profile.
117tc-ninja_magic_to_arch() { 213tc-ninja_magic_to_arch() {
118ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 214ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
119 215
122 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 218 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
123 219
124 case ${host} in 220 case ${host} in
125 alpha*) echo alpha;; 221 alpha*) echo alpha;;
126 arm*) echo arm;; 222 arm*) echo arm;;
223 avr*) ninj avr32 avr;;
127 bfin*) ninj blackfin bfin;; 224 bfin*) ninj blackfin bfin;;
128 cris*) echo cris;; 225 cris*) echo cris;;
129 hppa*) ninj parisc hppa;; 226 hppa*) ninj parisc hppa;;
130 i?86*) ninj i386 x86;; 227 i?86*)
228 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
229 # trees have been unified into 'x86'.
230 # FreeBSD still uses i386
231 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
232 echo i386
233 else
234 echo x86
235 fi
236 ;;
131 ia64*) echo ia64;; 237 ia64*) echo ia64;;
132 m68*) echo m68k;; 238 m68*) echo m68k;;
133 mips*) echo mips;; 239 mips*) echo mips;;
134 nios2*) echo nios2;; 240 nios2*) echo nios2;;
135 nios*) echo nios;; 241 nios*) echo nios;;
160 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 266 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
161 && ninj sparc64 sparc \ 267 && ninj sparc64 sparc \
162 || echo sparc 268 || echo sparc
163 ;; 269 ;;
164 vax*) echo vax;; 270 vax*) echo vax;;
165 x86_64*) ninj x86_64 amd64;; 271 x86_64*)
166 *) echo ${ARCH};; 272 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
273 # trees have been unified into 'x86'.
274 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
275 echo x86
276 else
277 ninj x86_64 amd64
278 fi
279 ;;
280
281 # since our usage of tc-arch is largely concerned with
282 # normalizing inputs for testing ${CTARGET}, let's filter
283 # other cross targets (mingw and such) into the unknown.
284 *) echo unknown;;
167 esac 285 esac
168} 286}
287# @FUNCTION: tc-arch-kernel
288# @USAGE: [toolchain prefix]
289# @RETURN: name of the kernel arch according to the compiler target
169tc-arch-kernel() { 290tc-arch-kernel() {
170 tc-ninja_magic_to_arch kern $@ 291 tc-ninja_magic_to_arch kern "$@"
171} 292}
293# @FUNCTION: tc-arch
294# @USAGE: [toolchain prefix]
295# @RETURN: name of the portage arch according to the compiler target
172tc-arch() { 296tc-arch() {
173 tc-ninja_magic_to_arch portage $@ 297 tc-ninja_magic_to_arch portage "$@"
174} 298}
175 299
176# Returns the version as by `$CC -dumpversion` 300tc-endian() {
301 local host=$1
302 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
303 host=${host%%-*}
304
305 case ${host} in
306 alpha*) echo big;;
307 arm*b*) echo big;;
308 arm*) echo little;;
309 cris*) echo little;;
310 hppa*) echo big;;
311 i?86*) echo little;;
312 ia64*) echo little;;
313 m68*) echo big;;
314 mips*l*) echo little;;
315 mips*) echo big;;
316 powerpc*) echo big;;
317 s390*) echo big;;
318 sh*b*) echo big;;
319 sh*) echo little;;
320 sparc*) echo big;;
321 x86_64*) echo little;;
322 *) echo wtf;;
323 esac
324}
325
326# @FUNCTION: gcc-fullversion
327# @RETURN: compiler version (major.minor.micro: [3.4.6])
177gcc-fullversion() { 328gcc-fullversion() {
178 $(tc-getCC "$@") -dumpversion 329 $(tc-getCC "$@") -dumpversion
179} 330}
180# Returns the version, but only the <major>.<minor> 331# @FUNCTION: gcc-version
332# @RETURN: compiler version (major.minor: [3.4].6)
181gcc-version() { 333gcc-version() {
182 gcc-fullversion "$@" | cut -f1,2 -d. 334 gcc-fullversion "$@" | cut -f1,2 -d.
183} 335}
184# Returns the Major version 336# @FUNCTION: gcc-major-version
337# @RETURN: major compiler version (major: [3].4.6)
185gcc-major-version() { 338gcc-major-version() {
186 gcc-version "$@" | cut -f1 -d. 339 gcc-version "$@" | cut -f1 -d.
187} 340}
188# Returns the Minor version 341# @FUNCTION: gcc-minor-version
342# @RETURN: minor compiler version (minor: 3.[4].6)
189gcc-minor-version() { 343gcc-minor-version() {
190 gcc-version "$@" | cut -f2 -d. 344 gcc-version "$@" | cut -f2 -d.
191} 345}
192# Returns the Micro version 346# @FUNCTION: gcc-micro-version
347# @RETURN: micro compiler version (micro: 3.4.[6])
193gcc-micro-version() { 348gcc-micro-version() {
194 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 349 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
195} 350}
351
196# Returns the installation directory - internal toolchain 352# Returns the installation directory - internal toolchain
197# function for use by _gcc-specs-exists (for flag-o-matic). 353# function for use by _gcc-specs-exists (for flag-o-matic).
198_gcc-install-dir() { 354_gcc-install-dir() {
199 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ 355 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
200 awk '$1=="install:" {print $2}')" 356 awk '$1=="install:" {print $2}')"
201} 357}
202# Returns true if the indicated specs file exists - internal toolchain 358# Returns true if the indicated specs file exists - internal toolchain
203# function for use by flag-o-matic. 359# function for use by flag-o-matic.
204_gcc-specs-exists() { 360_gcc-specs-exists() {
248 404
249# Returns true if gcc sets relro 405# Returns true if gcc sets relro
250gcc-specs-relro() { 406gcc-specs-relro() {
251 local directive 407 local directive
252 directive=$(gcc-specs-directive link_command) 408 directive=$(gcc-specs-directive link_command)
253 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 409 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
254} 410}
255# Returns true if gcc sets now 411# Returns true if gcc sets now
256gcc-specs-now() { 412gcc-specs-now() {
257 local directive 413 local directive
258 directive=$(gcc-specs-directive link_command) 414 directive=$(gcc-specs-directive link_command)
259 return $([[ ${directive/\{!nonow:} != ${directive} ]]) 415 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
260} 416}
261# Returns true if gcc builds PIEs 417# Returns true if gcc builds PIEs
262gcc-specs-pie() { 418gcc-specs-pie() {
263 local directive 419 local directive
264 directive=$(gcc-specs-directive cc1) 420 directive=$(gcc-specs-directive cc1)
265 return $([[ ${directive/\{!nopie:} != ${directive} ]]) 421 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
266} 422}
267# Returns true if gcc builds with the stack protector 423# Returns true if gcc builds with the stack protector
268gcc-specs-ssp() { 424gcc-specs-ssp() {
269 local directive 425 local directive
270 directive=$(gcc-specs-directive cc1) 426 directive=$(gcc-specs-directive cc1)
271 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 427 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
272} 428}
273# Returns true if gcc upgrades fstack-protector to fstack-protector-all 429# Returns true if gcc upgrades fstack-protector to fstack-protector-all
274gcc-specs-ssp-to-all() { 430gcc-specs-ssp-to-all() {
275 local directive 431 local directive
276 directive=$(gcc-specs-directive cc1) 432 directive=$(gcc-specs-directive cc1)
277 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 433 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
278} 434}
435# Returns true if gcc builds with fno-strict-overflow
436gcc-specs-nostrict() {
437 local directive
438 directive=$(gcc-specs-directive cc1)
439 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
440}
279 441
280 442
443# @FUNCTION: gen_usr_ldscript
444# @USAGE: [-a] <list of libs to create linker scripts for>
445# @DESCRIPTION:
281# This function generate linker scripts in /usr/lib for dynamic 446# This function generate linker scripts in /usr/lib for dynamic
282# libs in /lib. This is to fix linking problems when you have 447# libs in /lib. This is to fix linking problems when you have
283# the .so in /lib, and the .a in /usr/lib. What happens is that 448# the .so in /lib, and the .a in /usr/lib. What happens is that
284# in some cases when linking dynamic, the .a in /usr/lib is used 449# in some cases when linking dynamic, the .a in /usr/lib is used
285# instead of the .so in /lib due to gcc/libtool tweaking ld's 450# instead of the .so in /lib due to gcc/libtool tweaking ld's
286# library search path. This cause many builds to fail. 451# library search path. This causes many builds to fail.
287# See bug #4411 for more info. 452# See bug #4411 for more info.
288# 453#
289# To use, simply call:
290#
291# gen_usr_ldscript libfoo.so
292#
293# Note that you should in general use the unversioned name of 454# Note that you should in general use the unversioned name of
294# the library, as ldconfig should usually update it correctly 455# the library (libfoo.so), as ldconfig should usually update it
295# to point to the latest version of the library present. 456# correctly to point to the latest version of the library present.
296gen_usr_ldscript() { 457gen_usr_ldscript() {
297 local lib libdir=$(get_libdir) output_format="" 458 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
459 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
460
461 tc-is-static-only && return
462
298 # Just make sure it exists 463 # Just make sure it exists
299 dodir /usr/${libdir} 464 dodir /usr/${libdir}
465
466 if [[ $1 == "-a" ]] ; then
467 auto=true
468 shift
469 dodir /${libdir}
470 fi
300 471
301 # OUTPUT_FORMAT gives hints to the linker as to what binary format 472 # OUTPUT_FORMAT gives hints to the linker as to what binary format
302 # is referenced ... makes multilib saner 473 # is referenced ... makes multilib saner
303 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 474 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
304 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 475 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
305 476
306 for lib in "$@" ; do 477 for lib in "$@" ; do
307 if [[ ${USERLAND} == "Darwin" ]] ; then 478 local tlib
308 ewarn "Not creating fake dynamic library for $lib on Darwin;" 479 if ${auto} ; then
309 ewarn "making a symlink instead." 480 lib="lib${lib}${suffix}"
310 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
311 else 481 else
482 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
483 # This especially is for AIX where $(get_libname) can return ".a",
484 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
485 [[ -r ${ED}/${libdir}/${lib} ]] || continue
486 #TODO: better die here?
487 fi
488
489 case ${CTARGET:-${CHOST}} in
490 *-darwin*)
491 if ${auto} ; then
492 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
493 else
494 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
495 fi
496 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
497 tlib=${tlib##*/}
498
499 if ${auto} ; then
500 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
501 # some install_names are funky: they encode a version
502 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
503 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
504 fi
505 rm -f "${ED}"/${libdir}/${lib}
506 fi
507
508 # Mach-O files have an id, which is like a soname, it tells how
509 # another object linking against this lib should reference it.
510 # Since we moved the lib from usr/lib into lib this reference is
511 # wrong. Hence, we update it here. We don't configure with
512 # libdir=/lib because that messes up libtool files.
513 # Make sure we don't lose the specific version, so just modify the
514 # existing install_name
515 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
516 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
517 local nowrite=yes
518 fi
519 install_name_tool \
520 -id "${EPREFIX}"/${libdir}/${tlib} \
521 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
522 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
523 # Now as we don't use GNU binutils and our linker doesn't
524 # understand linker scripts, just create a symlink.
525 pushd "${ED}/usr/${libdir}" > /dev/null
526 ln -snf "../../${libdir}/${tlib}" "${lib}"
527 popd > /dev/null
528 ;;
529 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
530 if ${auto} ; then
531 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
532 # no way to retrieve soname on these platforms (?)
533 tlib=$(readlink "${ED}"/${libdir}/${lib})
534 tlib=${tlib##*/}
535 if [[ -z ${tlib} ]] ; then
536 # ok, apparently was not a symlink, don't remove it and
537 # just link to it
538 tlib=${lib}
539 else
540 rm -f "${ED}"/${libdir}/${lib}
541 fi
542 else
543 tlib=${lib}
544 fi
545
546 # we don't have GNU binutils on these platforms, so we symlink
547 # instead, which seems to work fine. Keep it relative, otherwise
548 # we break some QA checks in Portage
549 # on interix, the linker scripts would work fine in _most_
550 # situations. if a library links to such a linker script the
551 # absolute path to the correct library is inserted into the binary,
552 # which is wrong, since anybody linking _without_ libtool will miss
553 # some dependencies, since the stupid linker cannot find libraries
554 # hardcoded with absolute paths (as opposed to the loader, which
555 # seems to be able to do this).
556 # this has been seen while building shared-mime-info which needs
557 # libxml2, but links without libtool (and does not add libz to the
558 # command line by itself).
559 pushd "${ED}/usr/${libdir}" > /dev/null
560 ln -snf "../../${libdir}/${tlib}" "${lib}"
561 popd > /dev/null
562 ;;
563 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
564 if ${auto} ; then
565 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
566 [[ -z ${tlib} ]] && tlib=${lib}
567 tlib=${tlib##*/} # 'internal name' can have a path component
568 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
569 # some SONAMEs are funky: they encode a version before the .so
570 if [[ ${tlib} != ${lib}* ]] ; then
571 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
572 fi
573 [[ ${tlib} != ${lib} ]] &&
574 rm -f "${ED}"/${libdir}/${lib}
575 else
576 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
577 [[ -z ${tlib} ]] && tlib=${lib}
578 tlib=${tlib##*/} # 'internal name' can have a path component
579 fi
580 pushd "${ED}"/usr/${libdir} >/dev/null
581 ln -snf "../../${libdir}/${tlib}" "${lib}"
582 # need the internal name in usr/lib too, to be available at runtime
583 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
584 [[ ${tlib} != ${lib} ]] &&
585 ln -snf "../../${libdir}/${tlib}" "${tlib}"
586 popd >/dev/null
587 ;;
588 *)
589 if ${auto} ; then
590 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
591 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
592 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
593 # some SONAMEs are funky: they encode a version before the .so
594 if [[ ${tlib} != ${lib}* ]] ; then
595 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
596 fi
597 rm -f "${ED}"/${libdir}/${lib}
598 else
599 tlib=${lib}
600 fi
312 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 601 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
313 /* GNU ld script 602 /* GNU ld script
314 Since Gentoo has critical dynamic libraries 603 Since Gentoo has critical dynamic libraries in /lib, and the static versions
315 in /lib, and the static versions in /usr/lib, 604 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
316 we need to have a "fake" dynamic lib in /usr/lib, 605 run into linking problems. This "fake" dynamic lib is a linker script that
317 otherwise we run into linking problems. 606 redirects the linker to the real lib. And yes, this works in the cross-
607 compiling scenario as the sysroot-ed linker will prepend the real path.
318 608
319 See bug http://bugs.gentoo.org/4411 for more info. 609 See bug http://bugs.gentoo.org/4411 for more info.
320 */ 610 */
321 ${output_format} 611 ${output_format}
322 GROUP ( /${libdir}/${lib} ) 612 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
323 END_LDSCRIPT 613 END_LDSCRIPT
324 fi 614 ;;
615 esac
325 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 616 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
326 done 617 done
327} 618}

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