/[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 1.89 2009/04/04 17:17:56 grobian 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
… …
159 local type=$1 163 local type=$1
160 local host=$2 164 local host=$2
161 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 165 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
162 166
163 case ${host} in 167 case ${host} in
168 powerpc-apple-darwin*)
169 echo ppc-macos;;
170 powerpc64-apple-darwin*)
171 echo ppc64-macos;;
172 i?86-apple-darwin*)
173 echo x86-macos;;
174 x86_64-apple-darwin*)
175 echo x64-macos;;
176 sparc-sun-solaris*)
177 echo sparc-solaris;;
178 sparcv9-sun-solaris*)
179 echo sparc64-solaris;;
180 i?86-pc-solaris*)
181 echo x86-solaris;;
182 x86_64-pc-solaris*)
183 echo x64-solaris;;
184 powerpc-ibm-aix*)
185 echo ppc-aix;;
186 mips-sgi-irix*)
187 echo mips-irix;;
188 ia64-hp-hpux*)
189 echo ia64-hpux;;
190 i?86-pc-freebsd*)
191 echo x86-freebsd;;
192 x86_64-pc-freebsd*)
193 echo x64-freebsd;;
194 i?86-pc-netbsd*)
195 echo x86-netbsd;;
196 i?86-pc-interix*)
197 echo x86-interix;;
198 i?86-pc-winnt*)
199 echo x86-winnt;;
200 i*-pc-freebsd*)
201 echo x86-freebsd;;
202 x86_64-pc-freebsd*)
203 echo x64-freebsd;;
204
164 alpha*) echo alpha;; 205 alpha*) echo alpha;;
165 arm*) echo arm;; 206 arm*) echo arm;;
166 avr*) ninj avr32 avr;; 207 avr*) ninj avr32 avr;;
167 bfin*) ninj blackfin bfin;; 208 bfin*) ninj blackfin bfin;;
168 cris*) echo cris;; 209 cris*) echo cris;;
… …
382 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]) 423 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
383} 424}
384 425
385 426
386# @FUNCTION: gen_usr_ldscript 427# @FUNCTION: gen_usr_ldscript
387# @USAGE: <list of libs to create linker scripts for> 428# @USAGE: [-a] <list of libs to create linker scripts for>
388# @DESCRIPTION: 429# @DESCRIPTION:
389# This function generate linker scripts in /usr/lib for dynamic 430# This function generate linker scripts in /usr/lib for dynamic
390# libs in /lib. This is to fix linking problems when you have 431# libs in /lib. This is to fix linking problems when you have
391# the .so in /lib, and the .a in /usr/lib. What happens is that 432# the .so in /lib, and the .a in /usr/lib. What happens is that
392# in some cases when linking dynamic, the .a in /usr/lib is used 433# in some cases when linking dynamic, the .a in /usr/lib is used
… …
396# 437#
397# Note that you should in general use the unversioned name of 438# Note that you should in general use the unversioned name of
398# the library (libfoo.so), as ldconfig should usually update it 439# the library (libfoo.so), as ldconfig should usually update it
399# correctly to point to the latest version of the library present. 440# correctly to point to the latest version of the library present.
400gen_usr_ldscript() { 441gen_usr_ldscript() {
401 local lib libdir=$(get_libdir) output_format="" 442 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
402 # Just make sure it exists 443 # Just make sure it exists
403 dodir /usr/${libdir} 444 dodir /usr/${libdir}
445
446 if [[ $1 == "-a" ]] ; then
447 auto=true
448 shift
449 dodir /${libdir}
450 fi
404 451
405 # OUTPUT_FORMAT gives hints to the linker as to what binary format 452 # OUTPUT_FORMAT gives hints to the linker as to what binary format
406 # is referenced ... makes multilib saner 453 # is referenced ... makes multilib saner
407 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 454 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} )" 455 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
409 456
410 for lib in "$@" ; do 457 for lib in "$@" ; do
411 if [[ ${USERLAND} == "Darwin" ]] ; then 458
412 ewarn "Not creating fake dynamic library for $lib on Darwin;" 459 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
413 ewarn "making a symlink instead." 460 # This especially is for AIX where $(get_libname) can return ".a",
414 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}" 461 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
462 [[ -r "${ED}"/${libdir}/${lib} ]] || continue
463
464 case ${CHOST} in
465 *-darwin*)
466 # Mach-O files have an id, which is like a soname, it tells how
467 # another object linking against this lib should reference it.
468 # Since we moved the lib from usr/lib into lib this reference is
469 # wrong. Hence, we update it here. We don't configure with
470 # libdir=/lib because that messes up libtool files.
471 # Make sure we don't lose the specific version, so just modify the
472 # existing install_name
473 install_name=$(otool -DX "${ED}"/${libdir}/${lib})
474 [[ -z ${install_name} ]] && die "No install name found for ${ED}/${libdir}/${lib}"
475 install_name_tool \
476 -id "${EPREFIX}"/${libdir}/${install_name##*/} \
477 "${ED}"/${libdir}/${lib}
478 # Now as we don't use GNU binutils and our linker doesn't
479 # understand linker scripts, just create a symlink.
480 pushd "${ED}/usr/${libdir}" > /dev/null
481 ln -snf "../../${libdir}/${lib}" "${lib}"
482 popd > /dev/null
483 ;;
484 *-aix*|*-irix*|*-hpux*)
485 # we don't have GNU binutils on these platforms, so we symlink
486 # instead, which seems to work fine. Keep it relative, otherwise
487 # we break some QA checks in Portage
488 pushd "${ED}/usr/${libdir}" > /dev/null
489 ln -snf "../../${libdir}/${lib}" "${lib}"
490 popd > /dev/null
491 ;;
492 *-interix*|*-winnt*)
493 # on interix, the linker scripts would work fine in _most_
494 # situations. if a library links to such a linker script the
495 # absolute path to the correct library is inserted into the binary,
496 # which is wrong, since anybody linking _without_ libtool will miss
497 # some dependencies, since the stupid linker cannot find libraries
498 # hardcoded with absolute paths (as opposed to the loader, which
499 # seems to be able to do this).
500 # this has been seen while building shared-mime-info which needs
501 # libxml2, but links without libtool (and does not add libz to the
502 # command line by itself).
503 pushd "${ED}/usr/${libdir}" > /dev/null
504 ln -snf "../../${libdir}/${lib}" "${lib}"
505 popd > /dev/null
506 ;;
507 *-mint*)
508 # do nothing
509 return
510 ;;
511 *)
512 local tlib
513 if ${auto} ; then
514 lib="lib${lib}${suffix}"
515 tlib=$(scanelf -qF'%S#F' "${D}"/usr/${libdir}/${lib})
516 mv "${D}"/usr/${libdir}/${lib}* "${D}"/${libdir}/ || die
517 # some SONAMEs are funky: they encode a version before the .so
518 if [[ ${tlib} != ${lib}* ]] ; then
519 mv "${D}"/usr/${libdir}/${tlib}* "${D}"/${libdir}/ || die
520 fi
521 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
522 rm -f "${D}"/${libdir}/${lib}
415 else 523 else
524 tlib=${lib}
525 fi
416 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 526 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
417 /* GNU ld script 527 /* GNU ld script
418 Since Gentoo has critical dynamic libraries 528 Since Gentoo has critical dynamic libraries in /lib, and the static versions
419 in /lib, and the static versions in /usr/lib, 529 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, 530 run into linking problems. This "fake" dynamic lib is a linker script that
421 otherwise we run into linking problems. 531 redirects the linker to the real lib. And yes, this works in the cross-
532 compiling scenario as the sysroot-ed linker will prepend the real path.
422 533
423 See bug http://bugs.gentoo.org/4411 for more info. 534 See bug http://bugs.gentoo.org/4411 for more info.
424 */ 535 */
425 ${output_format} 536 ${output_format}
426 GROUP ( /${libdir}/${lib} ) 537 GROUP ( /${libdir}/${tlib} )
427 END_LDSCRIPT 538 END_LDSCRIPT
428 fi 539 ;;
540 esac
429 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 541 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
430 done 542 done
431} 543}
544
545# This function is for AIX only.
546#
547# Showing a sample IMO is the best description:
548#
549# First, AIX has its own /usr/lib/libiconv.a containing 'shr.o' and 'shr4.o'.
550# Both of them are shared-objects packed into an archive, thus /usr/lib/libiconv.a
551# is a shared library (!), even it is called lib*.a.
552# This is the default layout on aix for shared libraries.
553# Read the ld(1) manpage for more information.
554#
555# But now, we want to install GNU libiconv (sys-libs/libiconv) both as
556# shared and static library.
557# AIX (since 4.3) can create shared libraries if '-brtl' or '-G' linker flags
558# are used.
559#
560# Now assume we have GNU tar installed while GNU libiconv was not.
561# This tar now has a runtime dependency on "libiconv.a(shr4.o)".
562# With our ld-wrapper (from sys-devel/binutils-config) we add EPREFIX/usr/lib
563# as linker path, thus it is recorded as loader path into the binary.
564#
565# When having libiconv.a (the static GNU libiconv) in prefix, the loader finds
566# that one and claims that it does not contain an 'shr4.o' object file:
567#
568# Could not load program tar:
569# Dependent module EPREFIX/usr/lib/libiconv.a(shr4.o) could not be loaded.
570# Member shr4.o is not found in archive
571#
572# According to gcc's "host/target specific installation notes" for *-ibm-aix* [1],
573# we can extract that 'shr4.o' from /usr/lib/libiconv.a, mark it as
574# non-linkable, and include it in our new static library.
575#
576# [1] http://gcc.gnu.org/install/specific.html#x-ibm-aix
577#
578# usage:
579# keep_aix_runtime_object <target-archive inside EPREFIX> <source-archive(objects)>
580# keep_aix_runtime_object "/usr/lib/libiconv.a "/usr/lib/libiconv.a(shr4.o,...)"
581keep_aix_runtime_objects() {
582 [[ ${CHOST} == *-*-aix* ]] || return 0
583
584 local target=$1
585 shift
586 local sources="$@"
587
588 # strip possible ${ED} prefixes
589 target=${target##/}
590 target=${target#${D##/}}
591 target=${target#${EPREFIX##/}}
592 target=${target##/}
593
594 if ! $(tc-getAR) -t "${ED}${target}" &>/dev/null; then
595 if [[ -e ${ED}${target} ]]; then
596 ewarn "${target} is not an archive."
597 fi
598 return 0
599 fi
600
601 local tmpdir=${TMP}/keep_aix_runtime_object-$$
602 mkdir ${tmpdir} || die
603
604 local origdir=$(pwd)
605 local s
606 for s in ${sources}; do
607 local sourcelib sourceobjs so
608 # format of $s: "/usr/lib/libiconv.a(shr4.o,shr.o)"
609 sourcelib=${s%%(*}
610 sourceobjs=${s#*(}
611 sourceobjs=${sourceobjs%)}
612 sourceobjs=${sourceobjs//,/ }
613 cd ${tmpdir} || die
614 for so in ${sourceobjs}; do
615 ebegin "keeping aix runtime object '${sourcelib}(${so})' in '${EPREFIX}/${target}'"
616 if ! $(tc-getAR) -x "${sourcelib}" ${so}; then
617 eend 1
618 continue
619 fi
620 chmod +w ${so} &&
621 $(tc-getSTRIP) -e ${so} &&
622 $(tc-getAR) -q "${ED}${target}" ${so} &&
623 eend 0 ||
624 eend 1
625 done
626 done
627 cd "${origdir}"
628}
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