/[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 1.96 2009/11/27 21:31:29 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
70tc-getNM() { tc-getPROG NM nm "$@"; } 70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB 71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix] 72# @USAGE: [toolchain prefix]
73# @RETURN: name of the archiver indexer 73# @RETURN: name of the archiver indexer
74tc-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 "$@"; }
75# @FUNCTION: tc-getF77 79# @FUNCTION: tc-getF77
76# @USAGE: [toolchain prefix] 80# @USAGE: [toolchain prefix]
77# @RETURN: name of the Fortran 77 compiler 81# @RETURN: name of the Fortran 77 compiler
78tc-getF77() { tc-getPROG F77 f77 "$@"; } 82tc-getF77() { tc-getPROG F77 f77 "$@"; }
79# @FUNCTION: tc-getFC 83# @FUNCTION: tc-getFC
82tc-getFC() { tc-getPROG FC gfortran "$@"; } 86tc-getFC() { tc-getPROG FC gfortran "$@"; }
83# @FUNCTION: tc-getGCJ 87# @FUNCTION: tc-getGCJ
84# @USAGE: [toolchain prefix] 88# @USAGE: [toolchain prefix]
85# @RETURN: name of the java compiler 89# @RETURN: name of the java compiler
86tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91# @FUNCTION: tc-getPKG_CONFIG
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the pkg-config tool
94tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
87 95
88# @FUNCTION: tc-getBUILD_CC 96# @FUNCTION: tc-getBUILD_CC
89# @USAGE: [toolchain prefix] 97# @USAGE: [toolchain prefix]
90# @RETURN: name of the C compiler for building binaries to run on the build machine 98# @RETURN: name of the C compiler for building binaries to run on the build machine
91tc-getBUILD_CC() { 99tc-getBUILD_CC() {
148 && echo "yes" \ 156 && echo "yes" \
149 || echo "no" 157 || echo "no"
150 ;; 158 ;;
151 esac 159 esac
152} 160}
161
162# @FUNCTION: tc-is-static-only
163# @DESCRIPTION:
164# Return shell true if the target does not support shared libs, shell false
165# otherwise.
166tc-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
153 173
154# Parse information from CBUILD/CHOST/CTARGET rather than 174# Parse information from CBUILD/CHOST/CTARGET rather than
155# use external variables from the profile. 175# use external variables from the profile.
156tc-ninja_magic_to_arch() { 176tc-ninja_magic_to_arch() {
157ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 177ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
382 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]) 402 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
383} 403}
384 404
385 405
386# @FUNCTION: gen_usr_ldscript 406# @FUNCTION: gen_usr_ldscript
387# @USAGE: <list of libs to create linker scripts for> 407# @USAGE: [-a] <list of libs to create linker scripts for>
388# @DESCRIPTION: 408# @DESCRIPTION:
389# This function generate linker scripts in /usr/lib for dynamic 409# This function generate linker scripts in /usr/lib for dynamic
390# libs in /lib. This is to fix linking problems when you have 410# libs in /lib. This is to fix linking problems when you have
391# the .so in /lib, and the .a in /usr/lib. What happens is that 411# the .so in /lib, and the .a in /usr/lib. What happens is that
392# in some cases when linking dynamic, the .a in /usr/lib is used 412# in some cases when linking dynamic, the .a in /usr/lib is used
396# 416#
397# Note that you should in general use the unversioned name of 417# Note that you should in general use the unversioned name of
398# the library (libfoo.so), as ldconfig should usually update it 418# the library (libfoo.so), as ldconfig should usually update it
399# correctly to point to the latest version of the library present. 419# correctly to point to the latest version of the library present.
400gen_usr_ldscript() { 420gen_usr_ldscript() {
401 local lib libdir=$(get_libdir) output_format="" 421 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
422 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
423
424 tc-is-static-only && return
425
402 # Just make sure it exists 426 # Just make sure it exists
403 dodir /usr/${libdir} 427 dodir /usr/${libdir}
428
429 if [[ $1 == "-a" ]] ; then
430 auto=true
431 shift
432 dodir /${libdir}
433 fi
404 434
405 # OUTPUT_FORMAT gives hints to the linker as to what binary format 435 # OUTPUT_FORMAT gives hints to the linker as to what binary format
406 # is referenced ... makes multilib saner 436 # is referenced ... makes multilib saner
407 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 437 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} )" 438 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
409 439
410 for lib in "$@" ; do 440 for lib in "$@" ; do
411 if [[ ${USERLAND} == "Darwin" ]] ; then 441 local tlib
412 ewarn "Not creating fake dynamic library for $lib on Darwin;" 442 if ${auto} ; then
413 ewarn "making a symlink instead." 443 lib="lib${lib}${suffix}"
414 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
415 else 444 else
445 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
446 # This especially is for AIX where $(get_libname) can return ".a",
447 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
448 [[ -r ${ED}/${libdir}/${lib} ]] || continue
449 #TODO: better die here?
450 fi
451
452 case ${CTARGET:-${CHOST}} in
453 *-darwin*)
454 if ${auto} ; then
455 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
456 else
457 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
458 fi
459 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
460 tlib=${tlib##*/}
461
462 if ${auto} ; then
463 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
464 # some install_names are funky: they encode a version
465 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
466 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
467 fi
468 rm -f "${ED}"/${libdir}/${lib}
469 fi
470
471 # Mach-O files have an id, which is like a soname, it tells how
472 # another object linking against this lib should reference it.
473 # Since we moved the lib from usr/lib into lib this reference is
474 # wrong. Hence, we update it here. We don't configure with
475 # libdir=/lib because that messes up libtool files.
476 # Make sure we don't lose the specific version, so just modify the
477 # existing install_name
478 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
479 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
480 local nowrite=yes
481 fi
482 install_name_tool \
483 -id "${EPREFIX}"/${libdir}/${tlib} \
484 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
485 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
486 # Now as we don't use GNU binutils and our linker doesn't
487 # understand linker scripts, just create a symlink.
488 pushd "${ED}/usr/${libdir}" > /dev/null
489 ln -snf "../../${libdir}/${tlib}" "${lib}"
490 popd > /dev/null
491 ;;
492 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
493 if ${auto} ; then
494 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
495 # no way to retrieve soname on these platforms (?)
496 tlib=$(readlink "${ED}"/${libdir}/${lib})
497 tlib=${tlib##*/}
498 if [[ -z ${tlib} ]] ; then
499 # ok, apparently was not a symlink, don't remove it and
500 # just link to it
501 tlib=${lib}
502 else
503 rm -f "${ED}"/${libdir}/${lib}
504 fi
505 else
506 tlib=${lib}
507 fi
508
509 # we don't have GNU binutils on these platforms, so we symlink
510 # instead, which seems to work fine. Keep it relative, otherwise
511 # we break some QA checks in Portage
512 # on interix, the linker scripts would work fine in _most_
513 # situations. if a library links to such a linker script the
514 # absolute path to the correct library is inserted into the binary,
515 # which is wrong, since anybody linking _without_ libtool will miss
516 # some dependencies, since the stupid linker cannot find libraries
517 # hardcoded with absolute paths (as opposed to the loader, which
518 # seems to be able to do this).
519 # this has been seen while building shared-mime-info which needs
520 # libxml2, but links without libtool (and does not add libz to the
521 # command line by itself).
522 pushd "${ED}/usr/${libdir}" > /dev/null
523 ln -snf "../../${libdir}/${tlib}" "${lib}"
524 popd > /dev/null
525 ;;
526 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
527 if ${auto} ; then
528 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
529 [[ -z ${tlib} ]] && tlib=${lib}
530 tlib=${tlib##*/} # 'internal name' can have a path component
531 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
532 # some SONAMEs are funky: they encode a version before the .so
533 if [[ ${tlib} != ${lib}* ]] ; then
534 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
535 fi
536 [[ ${tlib} != ${lib} ]] &&
537 rm -f "${ED}"/${libdir}/${lib}
538 else
539 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
540 [[ -z ${tlib} ]] && tlib=${lib}
541 tlib=${tlib##*/} # 'internal name' can have a path component
542 fi
543 pushd "${ED}"/usr/${libdir} >/dev/null
544 ln -snf "../../${libdir}/${tlib}" "${lib}"
545 # need the internal name in usr/lib too, to be available at runtime
546 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
547 [[ ${tlib} != ${lib} ]] &&
548 ln -snf "../../${libdir}/${tlib}" "${tlib}"
549 popd >/dev/null
550 ;;
551 *)
552 if ${auto} ; then
553 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
554 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
555 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
556 # some SONAMEs are funky: they encode a version before the .so
557 if [[ ${tlib} != ${lib}* ]] ; then
558 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
559 fi
560 rm -f "${ED}"/${libdir}/${lib}
561 else
562 tlib=${lib}
563 fi
416 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 564 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
417 /* GNU ld script 565 /* GNU ld script
418 Since Gentoo has critical dynamic libraries 566 Since Gentoo has critical dynamic libraries in /lib, and the static versions
419 in /lib, and the static versions in /usr/lib, 567 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, 568 run into linking problems. This "fake" dynamic lib is a linker script that
421 otherwise we run into linking problems. 569 redirects the linker to the real lib. And yes, this works in the cross-
570 compiling scenario as the sysroot-ed linker will prepend the real path.
422 571
423 See bug http://bugs.gentoo.org/4411 for more info. 572 See bug http://bugs.gentoo.org/4411 for more info.
424 */ 573 */
425 ${output_format} 574 ${output_format}
426 GROUP ( /${libdir}/${lib} ) 575 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
427 END_LDSCRIPT 576 END_LDSCRIPT
428 fi 577 ;;
578 esac
429 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 579 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
430 done 580 done
431} 581}

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