/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2011 Gentoo Foundation 1# Copyright 1999-2011 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 1.109 2011/12/10 19:45:00 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.114 2012/07/25 18:27:56 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
177# @FUNCTION: tc-is-softfloat 177# @FUNCTION: tc-is-softfloat
178# @DESCRIPTION: 178# @DESCRIPTION:
179# See if this toolchain is a softfloat based one. 179# See if this toolchain is a softfloat based one.
180# @CODE 180# @CODE
181# The possible return values: 181# The possible return values:
182# - only: the target is always softfloat (never had fpu) 182# - only: the target is always softfloat (never had fpu)
183# - yes: the target should support softfloat 183# - yes: the target should support softfloat
184# - softfp: (arm specific) the target should use hardfloat insns, but softfloat calling convention
184# - no: the target doesn't support softfloat 185# - no: the target doesn't support softfloat
185# @CODE 186# @CODE
186# This allows us to react differently where packages accept 187# This allows us to react differently where packages accept
187# softfloat flags in the case where support is optional, but 188# softfloat flags in the case where support is optional, but
188# rejects softfloat flags where the target always lacks an fpu. 189# rejects softfloat flags where the target always lacks an fpu.
189tc-is-softfloat() { 190tc-is-softfloat() {
191 local CTARGET=${CTARGET:-${CHOST}}
190 case ${CTARGET} in 192 case ${CTARGET} in
191 bfin*|h8300*) 193 bfin*|h8300*)
192 echo "only" ;; 194 echo "only" ;;
193 *) 195 *)
194 [[ ${CTARGET//_/-} == *-softfloat-* ]] \ 196 if [[ ${CTARGET//_/-} == *-softfloat-* ]] ; then
195 && echo "yes" \ 197 echo "yes"
198 elif [[ ${CTARGET//_/-} == *-softfp-* ]] ; then
199 echo "softfp"
200 else
196 || echo "no" 201 echo "no"
202 fi
197 ;; 203 ;;
198 esac 204 esac
199}
200
201# @FUNCTION: tc-is-hardfloat
202# @DESCRIPTION:
203# See if this toolchain is a hardfloat based one.
204# @CODE
205# The possible return values:
206# - yes: the target should support hardfloat
207# - no: the target doesn't support hardfloat
208tc-is-hardfloat() {
209 [[ ${CTARGET//_/-} == *-hardfloat-* ]] \
210 && echo "yes" \
211 || echo "no"
212} 205}
213 206
214# @FUNCTION: tc-is-static-only 207# @FUNCTION: tc-is-static-only
215# @DESCRIPTION: 208# @DESCRIPTION:
216# Return shell true if the target does not support shared libs, shell false 209# Return shell true if the target does not support shared libs, shell false
218tc-is-static-only() { 211tc-is-static-only() {
219 local host=${CTARGET:-${CHOST}} 212 local host=${CTARGET:-${CHOST}}
220 213
221 # *MiNT doesn't have shared libraries, only platform so far 214 # *MiNT doesn't have shared libraries, only platform so far
222 return $([[ ${host} == *-mint* ]]) 215 return $([[ ${host} == *-mint* ]])
216}
217
218# @FUNCTION: tc-export_build_env
219# @USAGE: [compiler variables]
220# @DESCRIPTION:
221# Export common build related compiler settings.
222tc-export_build_env() {
223 tc-export "$@"
224 : ${BUILD_CFLAGS:=-O1 -pipe}
225 : ${BUILD_CXXFLAGS:=-O1 -pipe}
226 : ${BUILD_CPPFLAGS:=}
227 : ${BUILD_LDFLAGS:=}
228 export BUILD_{C,CXX,CPP,LD}FLAGS
223} 229}
224 230
225# @FUNCTION: tc-env_build 231# @FUNCTION: tc-env_build
226# @USAGE: <command> [command args] 232# @USAGE: <command> [command args]
227# @INTERNAL 233# @INTERNAL
229# Setup the compile environment to the build tools and then execute the 235# Setup the compile environment to the build tools and then execute the
230# specified command. We use tc-getBUILD_XX here so that we work with 236# specified command. We use tc-getBUILD_XX here so that we work with
231# all of the semi-[non-]standard env vars like $BUILD_CC which often 237# all of the semi-[non-]standard env vars like $BUILD_CC which often
232# the target build system does not check. 238# the target build system does not check.
233tc-env_build() { 239tc-env_build() {
240 tc-export_build_env
234 CFLAGS=${BUILD_CFLAGS:--O1 -pipe} \ 241 CFLAGS=${BUILD_CFLAGS} \
235 CXXFLAGS=${BUILD_CXXFLAGS:--O1 -pipe} \ 242 CXXFLAGS=${BUILD_CXXFLAGS} \
236 CPPFLAGS=${BUILD_CPPFLAGS} \ 243 CPPFLAGS=${BUILD_CPPFLAGS} \
237 LDFLAGS=${BUILD_LDFLAGS} \ 244 LDFLAGS=${BUILD_LDFLAGS} \
238 AR=$(tc-getBUILD_AR) \ 245 AR=$(tc-getBUILD_AR) \
239 AS=$(tc-getBUILD_AS) \ 246 AS=$(tc-getBUILD_AS) \
240 CC=$(tc-getBUILD_CC) \ 247 CC=$(tc-getBUILD_CC) \
603 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname) 610 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
604 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/ 611 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
605 612
606 tc-is-static-only && return 613 tc-is-static-only && return
607 614
615 # Eventually we'd like to get rid of this func completely #417451
616 case ${CTARGET:-${CHOST}} in
617 *-darwin*) ;;
618 *linux*|*-freebsd*)
619 use prefix && return 0 ;;
620 *) return 0 ;;
621 esac
622
608 # Just make sure it exists 623 # Just make sure it exists
609 dodir /usr/${libdir} 624 dodir /usr/${libdir}
610 625
611 if [[ $1 == "-a" ]] ; then 626 if [[ $1 == "-a" ]] ; then
612 auto=true 627 auto=true
669 # understand linker scripts, just create a symlink. 684 # understand linker scripts, just create a symlink.
670 pushd "${ED}/usr/${libdir}" > /dev/null 685 pushd "${ED}/usr/${libdir}" > /dev/null
671 ln -snf "../../${libdir}/${tlib}" "${lib}" 686 ln -snf "../../${libdir}/${tlib}" "${lib}"
672 popd > /dev/null 687 popd > /dev/null
673 ;; 688 ;;
674 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
675 if ${auto} ; then
676 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
677 # no way to retrieve soname on these platforms (?)
678 tlib=$(readlink "${ED}"/${libdir}/${lib})
679 tlib=${tlib##*/}
680 if [[ -z ${tlib} ]] ; then
681 # ok, apparently was not a symlink, don't remove it and
682 # just link to it
683 tlib=${lib}
684 else
685 rm -f "${ED}"/${libdir}/${lib}
686 fi
687 else
688 tlib=${lib}
689 fi
690
691 # we don't have GNU binutils on these platforms, so we symlink
692 # instead, which seems to work fine. Keep it relative, otherwise
693 # we break some QA checks in Portage
694 # on interix, the linker scripts would work fine in _most_
695 # situations. if a library links to such a linker script the
696 # absolute path to the correct library is inserted into the binary,
697 # which is wrong, since anybody linking _without_ libtool will miss
698 # some dependencies, since the stupid linker cannot find libraries
699 # hardcoded with absolute paths (as opposed to the loader, which
700 # seems to be able to do this).
701 # this has been seen while building shared-mime-info which needs
702 # libxml2, but links without libtool (and does not add libz to the
703 # command line by itself).
704 pushd "${ED}/usr/${libdir}" > /dev/null
705 ln -snf "../../${libdir}/${tlib}" "${lib}"
706 popd > /dev/null
707 ;;
708 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
709 if ${auto} ; then
710 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
711 [[ -z ${tlib} ]] && tlib=${lib}
712 tlib=${tlib##*/} # 'internal name' can have a path component
713 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
714 # some SONAMEs are funky: they encode a version before the .so
715 if [[ ${tlib} != ${lib}* ]] ; then
716 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
717 fi
718 [[ ${tlib} != ${lib} ]] &&
719 rm -f "${ED}"/${libdir}/${lib}
720 else
721 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
722 [[ -z ${tlib} ]] && tlib=${lib}
723 tlib=${tlib##*/} # 'internal name' can have a path component
724 fi
725 pushd "${ED}"/usr/${libdir} >/dev/null
726 ln -snf "../../${libdir}/${tlib}" "${lib}"
727 # need the internal name in usr/lib too, to be available at runtime
728 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
729 [[ ${tlib} != ${lib} ]] &&
730 ln -snf "../../${libdir}/${tlib}" "${tlib}"
731 popd >/dev/null
732 ;;
733 *) 689 *)
734 if ${auto} ; then 690 if ${auto} ; then
735 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib}) 691 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
736 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}" 692 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
737 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die 693 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die

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