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vapier |
1.67 |
# Copyright 1999-2007 Gentoo Foundation |
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vapier |
1.1 |
# Distributed under the terms of the GNU General Public License v2 |
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vapier |
1.97 |
# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.96 2009/11/27 21:31:29 vapier Exp $ |
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vapier |
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# @ECLASS: toolchain-funcs.eclass |
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# @MAINTAINER: |
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# Toolchain Ninjas <toolchain@gentoo.org> |
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# @BLURB: functions to query common info about the toolchain |
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# @DESCRIPTION: |
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# The toolchain-funcs aims to provide a complete suite of functions |
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# for gleaning useful information about the toolchain and to simplify |
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# ugly things like cross-compiling and multilib. All of this is done |
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# in such a way that you can rely on the function always returning |
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# something sane. |
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vapier |
1.1 |
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vapier |
1.69 |
___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" |
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[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib |
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eradicator |
1.34 |
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vapier |
1.1 |
DESCRIPTION="Based on the ${ECLASS} eclass" |
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tc-getPROG() { |
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vapier |
1.33 |
local var=$1 |
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local prog=$2 |
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vapier |
1.1 |
|
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vapier |
1.17 |
if [[ -n ${!var} ]] ; then |
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vapier |
1.1 |
echo "${!var}" |
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return 0 |
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fi |
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eradicator |
1.35 |
local search= |
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[[ -n $3 ]] && search=$(type -p "$3-${prog}") |
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[[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}") |
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[[ -n ${search} ]] && prog=${search##*/} |
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vapier |
1.1 |
|
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vapier |
1.17 |
export ${var}=${prog} |
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vapier |
1.1 |
echo "${!var}" |
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} |
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vapier |
1.74 |
# @FUNCTION: tc-getAR |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the archiver |
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vapier |
1.33 |
tc-getAR() { tc-getPROG AR ar "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getAS |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the assembler |
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vapier |
1.33 |
tc-getAS() { tc-getPROG AS as "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getCC |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the C compiler |
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vapier |
1.33 |
tc-getCC() { tc-getPROG CC gcc "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getCPP |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the C preprocessor |
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robbat2 |
1.58 |
tc-getCPP() { tc-getPROG CPP cpp "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getCXX |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the C++ compiler |
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vapier |
1.33 |
tc-getCXX() { tc-getPROG CXX g++ "$@"; } |
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vapier |
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# @FUNCTION: tc-getLD |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the linker |
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vapier |
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tc-getLD() { tc-getPROG LD ld "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getSTRIP |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the strip program |
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kanaka |
1.59 |
tc-getSTRIP() { tc-getPROG STRIP strip "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getNM |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the symbol/object thingy |
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vapier |
1.33 |
tc-getNM() { tc-getPROG NM nm "$@"; } |
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vapier |
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# @FUNCTION: tc-getRANLIB |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the archiver indexer |
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vapier |
1.33 |
tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } |
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kumba |
1.86 |
# @FUNCTION: tc-getOBJCOPY |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the object copier |
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tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getF77 |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the Fortran 77 compiler |
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kanaka |
1.59 |
tc-getF77() { tc-getPROG F77 f77 "$@"; } |
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dberkholz |
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# @FUNCTION: tc-getFC |
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vapier |
1.74 |
# @USAGE: [toolchain prefix] |
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# @RETURN: name of the Fortran 90 compiler |
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dberkholz |
1.78 |
tc-getFC() { tc-getPROG FC gfortran "$@"; } |
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vapier |
1.74 |
# @FUNCTION: tc-getGCJ |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the java compiler |
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vapier |
1.33 |
tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } |
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vapier |
1.96 |
# @FUNCTION: tc-getPKG_CONFIG |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the pkg-config tool |
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tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; } |
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vapier |
1.1 |
|
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vapier |
1.74 |
# @FUNCTION: tc-getBUILD_CC |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the C compiler for building binaries to run on the build machine |
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vapier |
1.4 |
tc-getBUILD_CC() { |
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vapier |
1.43 |
local v |
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for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do |
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if [[ -n ${!v} ]] ; then |
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export BUILD_CC=${!v} |
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echo "${!v}" |
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return 0 |
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fi |
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done |
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vapier |
1.4 |
|
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vapier |
1.9 |
local search= |
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vapier |
1.17 |
if [[ -n ${CBUILD} ]] ; then |
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vapier |
1.21 |
search=$(type -p ${CBUILD}-gcc) |
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vapier |
1.17 |
search=${search##*/} |
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vapier |
1.9 |
fi |
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vapier |
1.45 |
search=${search:-gcc} |
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vapier |
1.11 |
|
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vapier |
1.17 |
export BUILD_CC=${search} |
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vapier |
1.11 |
echo "${search}" |
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vapier |
1.4 |
} |
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vapier |
1.1 |
|
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vapier |
1.74 |
# @FUNCTION: tc-export |
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# @USAGE: <list of toolchain variables> |
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# @DESCRIPTION: |
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# Quick way to export a bunch of compiler vars at once. |
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vapier |
1.10 |
tc-export() { |
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local var |
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for var in "$@" ; do |
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vapier |
1.79 |
[[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'" |
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vapier |
1.36 |
eval tc-get${var} > /dev/null |
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vapier |
1.10 |
done |
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} |
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vapier |
1.74 |
# @FUNCTION: tc-is-cross-compiler |
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# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise |
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vapier |
1.12 |
tc-is-cross-compiler() { |
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vapier |
1.43 |
return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) |
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vapier |
1.12 |
} |
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vapier |
1.74 |
# @FUNCTION: tc-is-softfloat |
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# @DESCRIPTION: |
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vapier |
1.65 |
# See if this toolchain is a softfloat based one. |
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vapier |
1.74 |
# @CODE |
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vapier |
1.65 |
# The possible return values: |
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# - only: the target is always softfloat (never had fpu) |
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# - yes: the target should support softfloat |
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# - no: the target should support hardfloat |
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vapier |
1.74 |
# @CODE |
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vapier |
1.65 |
# This allows us to react differently where packages accept |
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# softfloat flags in the case where support is optional, but |
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# rejects softfloat flags where the target always lacks an fpu. |
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tc-is-softfloat() { |
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case ${CTARGET} in |
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vapier |
1.66 |
bfin*|h8300*) |
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vapier |
1.65 |
echo "only" ;; |
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*) |
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[[ ${CTARGET//_/-} == *-softfloat-* ]] \ |
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&& echo "yes" \ |
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|| echo "no" |
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;; |
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esac |
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} |
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vapier |
1.1 |
|
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grobian |
1.91 |
# @FUNCTION: tc-is-static-only |
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# @DESCRIPTION: |
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# Return shell true if the target does not support shared libs, shell false |
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# otherwise. |
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tc-is-static-only() { |
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local host=${CTARGET:-${CHOST}} |
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# *MiNT doesn't have shared libraries, only platform so far |
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return $([[ ${host} == *-mint* ]]) |
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} |
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vapier |
1.97 |
# @FUNCTION: tc-has-tls |
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# @USAGE: [-s|-c|-l] [toolchain prefix] |
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# @DESCRIPTION: |
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# See if the toolchain supports thread local storage (TLS). Use -s to test the |
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# compiler, -c to also test the assembler, and -l to also test the C library |
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# (the default). |
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tc-has-tls() { |
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local base="${T}/test-tc-tls" |
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cat <<-EOF > "${base}.c" |
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int foo(int *i) { |
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static __thread int j = 0; |
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return *i ? j : *i; |
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} |
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EOF |
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local flags |
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case $1 in |
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-s) flags="-S";; |
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-c) flags="-c";; |
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-l) ;; |
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-*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";; |
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esac |
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: ${flags:=-fPIC -shared -Wl,-z,defs} |
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[[ $1 == -* ]] && shift |
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$(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null |
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local ret=$? |
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rm -f "${base}"* |
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return ${ret} |
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} |
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grobian |
1.91 |
|
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swegener |
1.40 |
# Parse information from CBUILD/CHOST/CTARGET rather than |
204 |
vapier |
1.20 |
# use external variables from the profile. |
205 |
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tc-ninja_magic_to_arch() { |
206 |
vapier |
1.21 |
ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } |
207 |
vapier |
1.19 |
|
208 |
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local type=$1 |
209 |
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local host=$2 |
210 |
eradicator |
1.25 |
[[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
211 |
vapier |
1.19 |
|
212 |
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case ${host} in |
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alpha*) echo alpha;; |
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arm*) echo arm;; |
215 |
vapier |
1.72 |
avr*) ninj avr32 avr;; |
216 |
vapier |
1.53 |
bfin*) ninj blackfin bfin;; |
217 |
vapier |
1.47 |
cris*) echo cris;; |
218 |
vapier |
1.19 |
hppa*) ninj parisc hppa;; |
219 |
vapier |
1.75 |
i?86*) |
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# Starting with linux-2.6.24, the 'x86_64' and 'i386' |
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# trees have been unified into 'x86'. |
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aballier |
1.77 |
# FreeBSD still uses i386 |
223 |
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if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then |
224 |
vapier |
1.75 |
echo i386 |
225 |
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else |
226 |
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echo x86 |
227 |
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fi |
228 |
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;; |
229 |
vapier |
1.19 |
ia64*) echo ia64;; |
230 |
vapier |
1.23 |
m68*) echo m68k;; |
231 |
vapier |
1.19 |
mips*) echo mips;; |
232 |
vapier |
1.52 |
nios2*) echo nios2;; |
233 |
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nios*) echo nios;; |
234 |
vapier |
1.49 |
powerpc*) |
235 |
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# Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees |
236 |
josejx |
1.54 |
# have been unified into simply 'powerpc', but until 2.6.16, |
237 |
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# ppc32 is still using ARCH="ppc" as default |
238 |
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if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then |
239 |
vapier |
1.49 |
echo powerpc |
240 |
josejx |
1.54 |
elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then |
241 |
dostrow |
1.55 |
if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then |
242 |
josejx |
1.54 |
echo powerpc |
243 |
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else |
244 |
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echo ppc |
245 |
swegener |
1.56 |
fi |
246 |
vapier |
1.49 |
elif [[ ${host} == powerpc64* ]] ; then |
247 |
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echo ppc64 |
248 |
dostrow |
1.51 |
elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then |
249 |
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ninj ppc64 ppc |
250 |
vapier |
1.49 |
else |
251 |
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echo ppc |
252 |
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fi |
253 |
dostrow |
1.37 |
;; |
254 |
vapier |
1.47 |
s390*) echo s390;; |
255 |
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sh64*) ninj sh64 sh;; |
256 |
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sh*) echo sh;; |
257 |
vapier |
1.19 |
sparc64*) ninj sparc64 sparc;; |
258 |
vapier |
1.28 |
sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ |
259 |
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&& ninj sparc64 sparc \ |
260 |
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|| echo sparc |
261 |
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;; |
262 |
vapier |
1.47 |
vax*) echo vax;; |
263 |
vapier |
1.75 |
x86_64*) |
264 |
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# Starting with linux-2.6.24, the 'x86_64' and 'i386' |
265 |
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# trees have been unified into 'x86'. |
266 |
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if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then |
267 |
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echo x86 |
268 |
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else |
269 |
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ninj x86_64 amd64 |
270 |
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fi |
271 |
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;; |
272 |
vapier |
1.73 |
|
273 |
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# since our usage of tc-arch is largely concerned with |
274 |
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# normalizing inputs for testing ${CTARGET}, let's filter |
275 |
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# other cross targets (mingw and such) into the unknown. |
276 |
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*) echo unknown;; |
277 |
vapier |
1.19 |
esac |
278 |
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} |
279 |
vapier |
1.74 |
# @FUNCTION: tc-arch-kernel |
280 |
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# @USAGE: [toolchain prefix] |
281 |
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# @RETURN: name of the kernel arch according to the compiler target |
282 |
vapier |
1.20 |
tc-arch-kernel() { |
283 |
vapier |
1.74 |
tc-ninja_magic_to_arch kern "$@" |
284 |
vapier |
1.19 |
} |
285 |
vapier |
1.74 |
# @FUNCTION: tc-arch |
286 |
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# @USAGE: [toolchain prefix] |
287 |
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# @RETURN: name of the portage arch according to the compiler target |
288 |
vapier |
1.20 |
tc-arch() { |
289 |
vapier |
1.74 |
tc-ninja_magic_to_arch portage "$@" |
290 |
vapier |
1.19 |
} |
291 |
vapier |
1.74 |
|
292 |
robbat2 |
1.71 |
tc-endian() { |
293 |
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local host=$1 |
294 |
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[[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
295 |
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host=${host%%-*} |
296 |
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297 |
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case ${host} in |
298 |
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alpha*) echo big;; |
299 |
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arm*b*) echo big;; |
300 |
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arm*) echo little;; |
301 |
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cris*) echo little;; |
302 |
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hppa*) echo big;; |
303 |
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i?86*) echo little;; |
304 |
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ia64*) echo little;; |
305 |
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m68*) echo big;; |
306 |
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mips*l*) echo little;; |
307 |
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mips*) echo big;; |
308 |
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powerpc*) echo big;; |
309 |
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s390*) echo big;; |
310 |
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sh*b*) echo big;; |
311 |
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sh*) echo little;; |
312 |
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sparc*) echo big;; |
313 |
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x86_64*) echo little;; |
314 |
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*) echo wtf;; |
315 |
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esac |
316 |
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} |
317 |
vapier |
1.19 |
|
318 |
vapier |
1.74 |
# @FUNCTION: gcc-fullversion |
319 |
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# @RETURN: compiler version (major.minor.micro: [3.4.6]) |
320 |
vapier |
1.1 |
gcc-fullversion() { |
321 |
vapier |
1.63 |
$(tc-getCC "$@") -dumpversion |
322 |
vapier |
1.1 |
} |
323 |
vapier |
1.74 |
# @FUNCTION: gcc-version |
324 |
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# @RETURN: compiler version (major.minor: [3.4].6) |
325 |
vapier |
1.1 |
gcc-version() { |
326 |
vapier |
1.63 |
gcc-fullversion "$@" | cut -f1,2 -d. |
327 |
vapier |
1.1 |
} |
328 |
vapier |
1.74 |
# @FUNCTION: gcc-major-version |
329 |
|
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# @RETURN: major compiler version (major: [3].4.6) |
330 |
vapier |
1.1 |
gcc-major-version() { |
331 |
vapier |
1.63 |
gcc-version "$@" | cut -f1 -d. |
332 |
vapier |
1.1 |
} |
333 |
vapier |
1.74 |
# @FUNCTION: gcc-minor-version |
334 |
|
|
# @RETURN: minor compiler version (minor: 3.[4].6) |
335 |
vapier |
1.1 |
gcc-minor-version() { |
336 |
vapier |
1.63 |
gcc-version "$@" | cut -f2 -d. |
337 |
vapier |
1.1 |
} |
338 |
vapier |
1.74 |
# @FUNCTION: gcc-micro-version |
339 |
|
|
# @RETURN: micro compiler version (micro: 3.4.[6]) |
340 |
vapier |
1.1 |
gcc-micro-version() { |
341 |
vapier |
1.63 |
gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- |
342 |
vapier |
1.1 |
} |
343 |
vapier |
1.74 |
|
344 |
kevquinn |
1.68 |
# Returns the installation directory - internal toolchain |
345 |
|
|
# function for use by _gcc-specs-exists (for flag-o-matic). |
346 |
|
|
_gcc-install-dir() { |
347 |
vapier |
1.76 |
echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\ |
348 |
kevquinn |
1.68 |
awk '$1=="install:" {print $2}')" |
349 |
|
|
} |
350 |
|
|
# Returns true if the indicated specs file exists - internal toolchain |
351 |
|
|
# function for use by flag-o-matic. |
352 |
|
|
_gcc-specs-exists() { |
353 |
|
|
[[ -f $(_gcc-install-dir)/$1 ]] |
354 |
|
|
} |
355 |
kevquinn |
1.41 |
|
356 |
kevquinn |
1.68 |
# Returns requested gcc specs directive unprocessed - for used by |
357 |
|
|
# gcc-specs-directive() |
358 |
kevquinn |
1.46 |
# Note; later specs normally overwrite earlier ones; however if a later |
359 |
|
|
# spec starts with '+' then it appends. |
360 |
|
|
# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" |
361 |
kevquinn |
1.68 |
# as "Reading <file>", in order. Strictly speaking, if there's a |
362 |
|
|
# $(gcc_install_dir)/specs, the built-in specs aren't read, however by |
363 |
|
|
# the same token anything from 'gcc -dumpspecs' is overridden by |
364 |
|
|
# the contents of $(gcc_install_dir)/specs so the result is the |
365 |
|
|
# same either way. |
366 |
|
|
_gcc-specs-directive_raw() { |
367 |
kevquinn |
1.57 |
local cc=$(tc-getCC) |
368 |
|
|
local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') |
369 |
|
|
${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ |
370 |
kevquinn |
1.46 |
'BEGIN { pspec=""; spec=""; outside=1 } |
371 |
|
|
$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } |
372 |
kevquinn |
1.41 |
outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } |
373 |
kevquinn |
1.46 |
spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } |
374 |
|
|
{ spec=spec $0 } |
375 |
|
|
END { print spec }' |
376 |
|
|
return 0 |
377 |
kevquinn |
1.41 |
} |
378 |
|
|
|
379 |
kevquinn |
1.68 |
# Return the requested gcc specs directive, with all included |
380 |
|
|
# specs expanded. |
381 |
|
|
# Note, it does not check for inclusion loops, which cause it |
382 |
|
|
# to never finish - but such loops are invalid for gcc and we're |
383 |
|
|
# assuming gcc is operational. |
384 |
|
|
gcc-specs-directive() { |
385 |
|
|
local directive subdname subdirective |
386 |
|
|
directive="$(_gcc-specs-directive_raw $1)" |
387 |
|
|
while [[ ${directive} == *%\(*\)* ]]; do |
388 |
|
|
subdname=${directive/*%\(} |
389 |
|
|
subdname=${subdname/\)*} |
390 |
|
|
subdirective="$(_gcc-specs-directive_raw ${subdname})" |
391 |
|
|
directive="${directive//\%(${subdname})/${subdirective}}" |
392 |
|
|
done |
393 |
|
|
echo "${directive}" |
394 |
|
|
return 0 |
395 |
|
|
} |
396 |
|
|
|
397 |
kevquinn |
1.41 |
# Returns true if gcc sets relro |
398 |
|
|
gcc-specs-relro() { |
399 |
|
|
local directive |
400 |
|
|
directive=$(gcc-specs-directive link_command) |
401 |
gengor |
1.84 |
return $([[ "${directive/\{!norelro:}" != "${directive}" ]]) |
402 |
kevquinn |
1.41 |
} |
403 |
|
|
# Returns true if gcc sets now |
404 |
|
|
gcc-specs-now() { |
405 |
|
|
local directive |
406 |
|
|
directive=$(gcc-specs-directive link_command) |
407 |
gengor |
1.84 |
return $([[ "${directive/\{!nonow:}" != "${directive}" ]]) |
408 |
kevquinn |
1.41 |
} |
409 |
|
|
# Returns true if gcc builds PIEs |
410 |
|
|
gcc-specs-pie() { |
411 |
|
|
local directive |
412 |
|
|
directive=$(gcc-specs-directive cc1) |
413 |
gengor |
1.84 |
return $([[ "${directive/\{!nopie:}" != "${directive}" ]]) |
414 |
kevquinn |
1.41 |
} |
415 |
|
|
# Returns true if gcc builds with the stack protector |
416 |
|
|
gcc-specs-ssp() { |
417 |
|
|
local directive |
418 |
|
|
directive=$(gcc-specs-directive cc1) |
419 |
gengor |
1.84 |
return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]]) |
420 |
kevquinn |
1.41 |
} |
421 |
kevquinn |
1.46 |
# Returns true if gcc upgrades fstack-protector to fstack-protector-all |
422 |
|
|
gcc-specs-ssp-to-all() { |
423 |
|
|
local directive |
424 |
|
|
directive=$(gcc-specs-directive cc1) |
425 |
gengor |
1.84 |
return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]]) |
426 |
kevquinn |
1.46 |
} |
427 |
gengor |
1.80 |
# Returns true if gcc builds with fno-strict-overflow |
428 |
|
|
gcc-specs-nostrict() { |
429 |
|
|
local directive |
430 |
|
|
directive=$(gcc-specs-directive cc1) |
431 |
gengor |
1.84 |
return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]) |
432 |
gengor |
1.80 |
} |
433 |
vapier |
1.60 |
|
434 |
|
|
|
435 |
vapier |
1.74 |
# @FUNCTION: gen_usr_ldscript |
436 |
vapier |
1.85 |
# @USAGE: [-a] <list of libs to create linker scripts for> |
437 |
vapier |
1.74 |
# @DESCRIPTION: |
438 |
vapier |
1.60 |
# This function generate linker scripts in /usr/lib for dynamic |
439 |
|
|
# libs in /lib. This is to fix linking problems when you have |
440 |
|
|
# the .so in /lib, and the .a in /usr/lib. What happens is that |
441 |
|
|
# in some cases when linking dynamic, the .a in /usr/lib is used |
442 |
|
|
# instead of the .so in /lib due to gcc/libtool tweaking ld's |
443 |
vapier |
1.74 |
# library search path. This causes many builds to fail. |
444 |
vapier |
1.60 |
# See bug #4411 for more info. |
445 |
|
|
# |
446 |
|
|
# Note that you should in general use the unversioned name of |
447 |
vapier |
1.74 |
# the library (libfoo.so), as ldconfig should usually update it |
448 |
|
|
# correctly to point to the latest version of the library present. |
449 |
vapier |
1.70 |
gen_usr_ldscript() { |
450 |
vapier |
1.85 |
local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname) |
451 |
grobian |
1.91 |
[[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/ |
452 |
|
|
|
453 |
|
|
tc-is-static-only && return |
454 |
|
|
|
455 |
vapier |
1.60 |
# Just make sure it exists |
456 |
|
|
dodir /usr/${libdir} |
457 |
|
|
|
458 |
vapier |
1.85 |
if [[ $1 == "-a" ]] ; then |
459 |
|
|
auto=true |
460 |
|
|
shift |
461 |
|
|
dodir /${libdir} |
462 |
|
|
fi |
463 |
|
|
|
464 |
vapier |
1.60 |
# OUTPUT_FORMAT gives hints to the linker as to what binary format |
465 |
|
|
# is referenced ... makes multilib saner |
466 |
|
|
output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') |
467 |
|
|
[[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" |
468 |
|
|
|
469 |
|
|
for lib in "$@" ; do |
470 |
grobian |
1.91 |
local tlib |
471 |
|
|
if ${auto} ; then |
472 |
|
|
lib="lib${lib}${suffix}" |
473 |
grobian |
1.90 |
else |
474 |
grobian |
1.91 |
# Ensure /lib/${lib} exists to avoid dangling scripts/symlinks. |
475 |
|
|
# This especially is for AIX where $(get_libname) can return ".a", |
476 |
|
|
# so /lib/${lib} might be moved to /usr/lib/${lib} (by accident). |
477 |
|
|
[[ -r ${ED}/${libdir}/${lib} ]] || continue |
478 |
|
|
#TODO: better die here? |
479 |
|
|
fi |
480 |
|
|
|
481 |
|
|
case ${CTARGET:-${CHOST}} in |
482 |
|
|
*-darwin*) |
483 |
vapier |
1.85 |
if ${auto} ; then |
484 |
grobian |
1.91 |
tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib}) |
485 |
|
|
else |
486 |
|
|
tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib}) |
487 |
|
|
fi |
488 |
|
|
[[ -z ${tlib} ]] && die "unable to read install_name from ${lib}" |
489 |
|
|
tlib=${tlib##*/} |
490 |
|
|
|
491 |
|
|
if ${auto} ; then |
492 |
|
|
mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die |
493 |
grobian |
1.92 |
# some install_names are funky: they encode a version |
494 |
|
|
if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then |
495 |
|
|
mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die |
496 |
|
|
fi |
497 |
grobian |
1.91 |
rm -f "${ED}"/${libdir}/${lib} |
498 |
|
|
fi |
499 |
|
|
|
500 |
|
|
# Mach-O files have an id, which is like a soname, it tells how |
501 |
|
|
# another object linking against this lib should reference it. |
502 |
|
|
# Since we moved the lib from usr/lib into lib this reference is |
503 |
|
|
# wrong. Hence, we update it here. We don't configure with |
504 |
|
|
# libdir=/lib because that messes up libtool files. |
505 |
|
|
# Make sure we don't lose the specific version, so just modify the |
506 |
|
|
# existing install_name |
507 |
grobian |
1.94 |
if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then |
508 |
grobian |
1.95 |
chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it |
509 |
grobian |
1.94 |
local nowrite=yes |
510 |
|
|
fi |
511 |
grobian |
1.91 |
install_name_tool \ |
512 |
|
|
-id "${EPREFIX}"/${libdir}/${tlib} \ |
513 |
grobian |
1.94 |
"${ED}"/${libdir}/${tlib} || die "install_name_tool failed" |
514 |
grobian |
1.95 |
[[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}" |
515 |
grobian |
1.91 |
# Now as we don't use GNU binutils and our linker doesn't |
516 |
|
|
# understand linker scripts, just create a symlink. |
517 |
|
|
pushd "${ED}/usr/${libdir}" > /dev/null |
518 |
|
|
ln -snf "../../${libdir}/${tlib}" "${lib}" |
519 |
|
|
popd > /dev/null |
520 |
|
|
;; |
521 |
grobian |
1.93 |
*-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*) |
522 |
grobian |
1.91 |
if ${auto} ; then |
523 |
|
|
mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die |
524 |
|
|
# no way to retrieve soname on these platforms (?) |
525 |
|
|
tlib=$(readlink "${ED}"/${libdir}/${lib}) |
526 |
|
|
tlib=${tlib##*/} |
527 |
|
|
if [[ -z ${tlib} ]] ; then |
528 |
|
|
# ok, apparently was not a symlink, don't remove it and |
529 |
|
|
# just link to it |
530 |
|
|
tlib=${lib} |
531 |
|
|
else |
532 |
|
|
rm -f "${ED}"/${libdir}/${lib} |
533 |
|
|
fi |
534 |
|
|
else |
535 |
|
|
tlib=${lib} |
536 |
|
|
fi |
537 |
|
|
|
538 |
|
|
# we don't have GNU binutils on these platforms, so we symlink |
539 |
|
|
# instead, which seems to work fine. Keep it relative, otherwise |
540 |
|
|
# we break some QA checks in Portage |
541 |
|
|
# on interix, the linker scripts would work fine in _most_ |
542 |
|
|
# situations. if a library links to such a linker script the |
543 |
|
|
# absolute path to the correct library is inserted into the binary, |
544 |
|
|
# which is wrong, since anybody linking _without_ libtool will miss |
545 |
|
|
# some dependencies, since the stupid linker cannot find libraries |
546 |
|
|
# hardcoded with absolute paths (as opposed to the loader, which |
547 |
|
|
# seems to be able to do this). |
548 |
|
|
# this has been seen while building shared-mime-info which needs |
549 |
|
|
# libxml2, but links without libtool (and does not add libz to the |
550 |
|
|
# command line by itself). |
551 |
|
|
pushd "${ED}/usr/${libdir}" > /dev/null |
552 |
|
|
ln -snf "../../${libdir}/${tlib}" "${lib}" |
553 |
|
|
popd > /dev/null |
554 |
|
|
;; |
555 |
grobian |
1.93 |
hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above. |
556 |
|
|
if ${auto} ; then |
557 |
|
|
tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}') |
558 |
|
|
[[ -z ${tlib} ]] && tlib=${lib} |
559 |
|
|
tlib=${tlib##*/} # 'internal name' can have a path component |
560 |
|
|
mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die |
561 |
|
|
# some SONAMEs are funky: they encode a version before the .so |
562 |
|
|
if [[ ${tlib} != ${lib}* ]] ; then |
563 |
|
|
mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die |
564 |
|
|
fi |
565 |
|
|
[[ ${tlib} != ${lib} ]] && |
566 |
|
|
rm -f "${ED}"/${libdir}/${lib} |
567 |
|
|
else |
568 |
|
|
tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}') |
569 |
|
|
[[ -z ${tlib} ]] && tlib=${lib} |
570 |
|
|
tlib=${tlib##*/} # 'internal name' can have a path component |
571 |
|
|
fi |
572 |
|
|
pushd "${ED}"/usr/${libdir} >/dev/null |
573 |
|
|
ln -snf "../../${libdir}/${tlib}" "${lib}" |
574 |
|
|
# need the internal name in usr/lib too, to be available at runtime |
575 |
|
|
# when linked with /path/to/lib.sl (hardcode_direct_absolute=yes) |
576 |
|
|
[[ ${tlib} != ${lib} ]] && |
577 |
|
|
ln -snf "../../${libdir}/${tlib}" "${tlib}" |
578 |
|
|
popd >/dev/null |
579 |
|
|
;; |
580 |
grobian |
1.91 |
*) |
581 |
|
|
if ${auto} ; then |
582 |
|
|
tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib}) |
583 |
|
|
[[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}" |
584 |
|
|
mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die |
585 |
vapier |
1.88 |
# some SONAMEs are funky: they encode a version before the .so |
586 |
|
|
if [[ ${tlib} != ${lib}* ]] ; then |
587 |
grobian |
1.91 |
mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die |
588 |
vapier |
1.88 |
fi |
589 |
grobian |
1.91 |
rm -f "${ED}"/${libdir}/${lib} |
590 |
vapier |
1.85 |
else |
591 |
|
|
tlib=${lib} |
592 |
|
|
fi |
593 |
grobian |
1.91 |
cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT |
594 |
grobian |
1.61 |
/* GNU ld script |
595 |
vapier |
1.87 |
Since Gentoo has critical dynamic libraries in /lib, and the static versions |
596 |
|
|
in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we |
597 |
|
|
run into linking problems. This "fake" dynamic lib is a linker script that |
598 |
|
|
redirects the linker to the real lib. And yes, this works in the cross- |
599 |
|
|
compiling scenario as the sysroot-ed linker will prepend the real path. |
600 |
grobian |
1.61 |
|
601 |
|
|
See bug http://bugs.gentoo.org/4411 for more info. |
602 |
|
|
*/ |
603 |
|
|
${output_format} |
604 |
grobian |
1.91 |
GROUP ( ${EPREFIX}/${libdir}/${tlib} ) |
605 |
grobian |
1.61 |
END_LDSCRIPT |
606 |
grobian |
1.91 |
;; |
607 |
|
|
esac |
608 |
|
|
fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" |
609 |
vapier |
1.60 |
done |
610 |
|
|
} |