# Copyright 1999-2011 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.109 2011/12/10 19:45:00 vapier Exp $ # @ECLASS: toolchain-funcs.eclass # @MAINTAINER: # Toolchain Ninjas <toolchain@gentoo.org> # @BLURB: functions to query common info about the toolchain # @DESCRIPTION: # The toolchain-funcs aims to provide a complete suite of functions # for gleaning useful information about the toolchain and to simplify # ugly things like cross-compiling and multilib. All of this is done # in such a way that you can rely on the function always returning # something sane. if [[ ${___ECLASS_ONCE_TOOLCHAIN_FUNCS} != "recur -_+^+_- spank" ]] ; then ___ECLASS_ONCE_TOOLCHAIN_FUNCS="recur -_+^+_- spank" inherit multilib DESCRIPTION="Based on the ${ECLASS} eclass" # tc-getPROG <VAR [search vars]> <default> [tuple] _tc-getPROG() { local tuple=$1 local v var vars=$2 local prog=$3 var=${vars%% *} for v in ${vars} ; do if [[ -n ${!v} ]] ; then export ${var}="${!v}" echo "${!v}" return 0 fi done local search= [[ -n $4 ]] && search=$(type -p "$4-${prog}") [[ -z ${search} && -n ${!tuple} ]] && search=$(type -p "${!tuple}-${prog}") [[ -n ${search} ]] && prog=${search##*/} export ${var}=${prog} echo "${!var}" } tc-getBUILD_PROG() { _tc-getPROG CBUILD "BUILD_$1 $1_FOR_BUILD HOST$1" "${@:2}"; } tc-getPROG() { _tc-getPROG CHOST "$@"; } # @FUNCTION: tc-getAR # @USAGE: [toolchain prefix] # @RETURN: name of the archiver tc-getAR() { tc-getPROG AR ar "$@"; } # @FUNCTION: tc-getAS # @USAGE: [toolchain prefix] # @RETURN: name of the assembler tc-getAS() { tc-getPROG AS as "$@"; } # @FUNCTION: tc-getCC # @USAGE: [toolchain prefix] # @RETURN: name of the C compiler tc-getCC() { tc-getPROG CC gcc "$@"; } # @FUNCTION: tc-getCPP # @USAGE: [toolchain prefix] # @RETURN: name of the C preprocessor tc-getCPP() { tc-getPROG CPP cpp "$@"; } # @FUNCTION: tc-getCXX # @USAGE: [toolchain prefix] # @RETURN: name of the C++ compiler tc-getCXX() { tc-getPROG CXX g++ "$@"; } # @FUNCTION: tc-getLD # @USAGE: [toolchain prefix] # @RETURN: name of the linker tc-getLD() { tc-getPROG LD ld "$@"; } # @FUNCTION: tc-getSTRIP # @USAGE: [toolchain prefix] # @RETURN: name of the strip program tc-getSTRIP() { tc-getPROG STRIP strip "$@"; } # @FUNCTION: tc-getNM # @USAGE: [toolchain prefix] # @RETURN: name of the symbol/object thingy tc-getNM() { tc-getPROG NM nm "$@"; } # @FUNCTION: tc-getRANLIB # @USAGE: [toolchain prefix] # @RETURN: name of the archiver indexer tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } # @FUNCTION: tc-getOBJCOPY # @USAGE: [toolchain prefix] # @RETURN: name of the object copier tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; } # @FUNCTION: tc-getF77 # @USAGE: [toolchain prefix] # @RETURN: name of the Fortran 77 compiler tc-getF77() { tc-getPROG F77 gfortran "$@"; } # @FUNCTION: tc-getFC # @USAGE: [toolchain prefix] # @RETURN: name of the Fortran 90 compiler tc-getFC() { tc-getPROG FC gfortran "$@"; } # @FUNCTION: tc-getGCJ # @USAGE: [toolchain prefix] # @RETURN: name of the java compiler tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } # @FUNCTION: tc-getPKG_CONFIG # @USAGE: [toolchain prefix] # @RETURN: name of the pkg-config tool tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; } # @FUNCTION: tc-getRC # @USAGE: [toolchain prefix] # @RETURN: name of the Windows resource compiler tc-getRC() { tc-getPROG RC windres "$@"; } # @FUNCTION: tc-getDLLWRAP # @USAGE: [toolchain prefix] # @RETURN: name of the Windows dllwrap utility tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; } # @FUNCTION: tc-getBUILD_AR # @USAGE: [toolchain prefix] # @RETURN: name of the archiver for building binaries to run on the build machine tc-getBUILD_AR() { tc-getBUILD_PROG AR ar "$@"; } # @FUNCTION: tc-getBUILD_AS # @USAGE: [toolchain prefix] # @RETURN: name of the assembler for building binaries to run on the build machine tc-getBUILD_AS() { tc-getBUILD_PROG AS as "$@"; } # @FUNCTION: tc-getBUILD_CC # @USAGE: [toolchain prefix] # @RETURN: name of the C compiler for building binaries to run on the build machine tc-getBUILD_CC() { tc-getBUILD_PROG CC gcc "$@"; } # @FUNCTION: tc-getBUILD_CPP # @USAGE: [toolchain prefix] # @RETURN: name of the C preprocessor for building binaries to run on the build machine tc-getBUILD_CPP() { tc-getBUILD_PROG CPP cpp "$@"; } # @FUNCTION: tc-getBUILD_CXX # @USAGE: [toolchain prefix] # @RETURN: name of the C++ compiler for building binaries to run on the build machine tc-getBUILD_CXX() { tc-getBUILD_PROG CXX g++ "$@"; } # @FUNCTION: tc-getBUILD_LD # @USAGE: [toolchain prefix] # @RETURN: name of the linker for building binaries to run on the build machine tc-getBUILD_LD() { tc-getBUILD_PROG LD ld "$@"; } # @FUNCTION: tc-getBUILD_STRIP # @USAGE: [toolchain prefix] # @RETURN: name of the strip program for building binaries to run on the build machine tc-getBUILD_STRIP() { tc-getBUILD_PROG STRIP strip "$@"; } # @FUNCTION: tc-getBUILD_NM # @USAGE: [toolchain prefix] # @RETURN: name of the symbol/object thingy for building binaries to run on the build machine tc-getBUILD_NM() { tc-getBUILD_PROG NM nm "$@"; } # @FUNCTION: tc-getBUILD_RANLIB # @USAGE: [toolchain prefix] # @RETURN: name of the archiver indexer for building binaries to run on the build machine tc-getBUILD_RANLIB() { tc-getBUILD_PROG RANLIB ranlib "$@"; } # @FUNCTION: tc-getBUILD_OBJCOPY # @USAGE: [toolchain prefix] # @RETURN: name of the object copier for building binaries to run on the build machine tc-getBUILD_OBJCOPY() { tc-getBUILD_PROG OBJCOPY objcopy "$@"; } # @FUNCTION: tc-getBUILD_PKG_CONFIG # @USAGE: [toolchain prefix] # @RETURN: name of the pkg-config tool for building binaries to run on the build machine tc-getBUILD_PKG_CONFIG() { tc-getBUILD_PROG PKG_CONFIG pkg-config "$@"; } # @FUNCTION: tc-export # @USAGE: <list of toolchain variables> # @DESCRIPTION: # Quick way to export a bunch of compiler vars at once. tc-export() { local var for var in "$@" ; do [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'" eval tc-get${var} > /dev/null done } # @FUNCTION: tc-is-cross-compiler # @RETURN: Shell true if we are using a cross-compiler, shell false otherwise tc-is-cross-compiler() { return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) } # @FUNCTION: tc-is-softfloat # @DESCRIPTION: # See if this toolchain is a softfloat based one. # @CODE # The possible return values: # - only: the target is always softfloat (never had fpu) # - yes: the target should support softfloat # - no: the target doesn't support softfloat # @CODE # This allows us to react differently where packages accept # softfloat flags in the case where support is optional, but # rejects softfloat flags where the target always lacks an fpu. tc-is-softfloat() { case ${CTARGET} in bfin*|h8300*) echo "only" ;; *) [[ ${CTARGET//_/-} == *-softfloat-* ]] \ && echo "yes" \ || echo "no" ;; esac } # @FUNCTION: tc-is-hardfloat # @DESCRIPTION: # See if this toolchain is a hardfloat based one. # @CODE # The possible return values: # - yes: the target should support hardfloat # - no: the target doesn't support hardfloat tc-is-hardfloat() { [[ ${CTARGET//_/-} == *-hardfloat-* ]] \ && echo "yes" \ || echo "no" } # @FUNCTION: tc-is-static-only # @DESCRIPTION: # Return shell true if the target does not support shared libs, shell false # otherwise. tc-is-static-only() { local host=${CTARGET:-${CHOST}} # *MiNT doesn't have shared libraries, only platform so far return $([[ ${host} == *-mint* ]]) } # @FUNCTION: tc-env_build # @USAGE: <command> [command args] # @INTERNAL # @DESCRIPTION: # Setup the compile environment to the build tools and then execute the # specified command. We use tc-getBUILD_XX here so that we work with # all of the semi-[non-]standard env vars like $BUILD_CC which often # the target build system does not check. tc-env_build() { CFLAGS=${BUILD_CFLAGS:--O1 -pipe} \ CXXFLAGS=${BUILD_CXXFLAGS:--O1 -pipe} \ CPPFLAGS=${BUILD_CPPFLAGS} \ LDFLAGS=${BUILD_LDFLAGS} \ AR=$(tc-getBUILD_AR) \ AS=$(tc-getBUILD_AS) \ CC=$(tc-getBUILD_CC) \ CPP=$(tc-getBUILD_CPP) \ CXX=$(tc-getBUILD_CXX) \ LD=$(tc-getBUILD_LD) \ NM=$(tc-getBUILD_NM) \ PKG_CONFIG=$(tc-getBUILD_PKG_CONFIG) \ RANLIB=$(tc-getBUILD_RANLIB) \ "$@" } # @FUNCTION: econf_build # @USAGE: [econf flags] # @DESCRIPTION: # Sometimes we need to locally build up some tools to run on CBUILD because # the package has helper utils which are compiled+executed when compiling. # This won't work when cross-compiling as the CHOST is set to a target which # we cannot natively execute. # # For example, the python package will build up a local python binary using # a portable build system (configure+make), but then use that binary to run # local python scripts to build up other components of the overall python. # We cannot rely on the python binary in $PATH as that often times will be # a different version, or not even installed in the first place. Instead, # we compile the code in a different directory to run on CBUILD, and then # use that binary when compiling the main package to run on CHOST. # # For example, with newer EAPIs, you'd do something like: # @CODE # src_configure() { # ECONF_SOURCE=${S} # if tc-is-cross-compiler ; then # mkdir "${WORKDIR}"/${CBUILD} # pushd "${WORKDIR}"/${CBUILD} >/dev/null # econf_build --disable-some-unused-stuff # popd >/dev/null # fi # ... normal build paths ... # } # src_compile() { # if tc-is-cross-compiler ; then # pushd "${WORKDIR}"/${CBUILD} >/dev/null # emake one-or-two-build-tools # ln/mv build-tools to normal build paths in ${S}/ # popd >/dev/null # fi # ... normal build paths ... # } # @CODE econf_build() { tc-env_build econf --build=${CBUILD:-${CHOST}} "$@" } # @FUNCTION: tc-has-openmp # @USAGE: [toolchain prefix] # @DESCRIPTION: # See if the toolchain supports OpenMP. tc-has-openmp() { local base="${T}/test-tc-openmp" cat <<-EOF > "${base}.c" #include <omp.h> int main() { int nthreads, tid, ret = 0; #pragma omp parallel private(nthreads, tid) { tid = omp_get_thread_num(); nthreads = omp_get_num_threads(); ret += tid + nthreads; } return ret; } EOF $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null local ret=$? rm -f "${base}"* return ${ret} } # @FUNCTION: tc-has-tls # @USAGE: [-s|-c|-l] [toolchain prefix] # @DESCRIPTION: # See if the toolchain supports thread local storage (TLS). Use -s to test the # compiler, -c to also test the assembler, and -l to also test the C library # (the default). tc-has-tls() { local base="${T}/test-tc-tls" cat <<-EOF > "${base}.c" int foo(int *i) { static __thread int j = 0; return *i ? j : *i; } EOF local flags case $1 in -s) flags="-S";; -c) flags="-c";; -l) ;; -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";; esac : ${flags:=-fPIC -shared -Wl,-z,defs} [[ $1 == -* ]] && shift $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null local ret=$? rm -f "${base}"* return ${ret} } # Parse information from CBUILD/CHOST/CTARGET rather than # use external variables from the profile. tc-ninja_magic_to_arch() { ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } local type=$1 local host=$2 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} case ${host} in alpha*) echo alpha;; arm*) echo arm;; avr*) ninj avr32 avr;; bfin*) ninj blackfin bfin;; cris*) echo cris;; hppa*) ninj parisc hppa;; i?86*) # Starting with linux-2.6.24, the 'x86_64' and 'i386' # trees have been unified into 'x86'. # FreeBSD still uses i386 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then echo i386 else echo x86 fi ;; ia64*) echo ia64;; m68*) echo m68k;; mips*) echo mips;; nios2*) echo nios2;; nios*) echo nios;; powerpc*) # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees # have been unified into simply 'powerpc', but until 2.6.16, # ppc32 is still using ARCH="ppc" as default if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] ; then echo powerpc elif [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] ; then if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then echo powerpc else echo ppc fi elif [[ ${host} == powerpc64* ]] ; then echo ppc64 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then ninj ppc64 ppc else echo ppc fi ;; s390*) echo s390;; sh64*) ninj sh64 sh;; sh*) echo sh;; sparc64*) ninj sparc64 sparc;; sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ && ninj sparc64 sparc \ || echo sparc ;; vax*) echo vax;; x86_64*freebsd*) echo amd64;; x86_64*) # Starting with linux-2.6.24, the 'x86_64' and 'i386' # trees have been unified into 'x86'. if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then echo x86 else ninj x86_64 amd64 fi ;; # since our usage of tc-arch is largely concerned with # normalizing inputs for testing ${CTARGET}, let's filter # other cross targets (mingw and such) into the unknown. *) echo unknown;; esac } # @FUNCTION: tc-arch-kernel # @USAGE: [toolchain prefix] # @RETURN: name of the kernel arch according to the compiler target tc-arch-kernel() { tc-ninja_magic_to_arch kern "$@" } # @FUNCTION: tc-arch # @USAGE: [toolchain prefix] # @RETURN: name of the portage arch according to the compiler target tc-arch() { tc-ninja_magic_to_arch portage "$@" } tc-endian() { local host=$1 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} host=${host%%-*} case ${host} in alpha*) echo big;; arm*b*) echo big;; arm*) echo little;; cris*) echo little;; hppa*) echo big;; i?86*) echo little;; ia64*) echo little;; m68*) echo big;; mips*l*) echo little;; mips*) echo big;; powerpc*) echo big;; s390*) echo big;; sh*b*) echo big;; sh*) echo little;; sparc*) echo big;; x86_64*) echo little;; *) echo wtf;; esac } # Internal func. The first argument is the version info to expand. # Query the preprocessor to improve compatibility across different # compilers rather than maintaining a --version flag matrix. #335943 _gcc_fullversion() { local ver="$1"; shift set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"` eval echo "$ver" } # @FUNCTION: gcc-fullversion # @RETURN: compiler version (major.minor.micro: [3.4.6]) gcc-fullversion() { _gcc_fullversion '$1.$2.$3' "$@" } # @FUNCTION: gcc-version # @RETURN: compiler version (major.minor: [3.4].6) gcc-version() { _gcc_fullversion '$1.$2' "$@" } # @FUNCTION: gcc-major-version # @RETURN: major compiler version (major: [3].4.6) gcc-major-version() { _gcc_fullversion '$1' "$@" } # @FUNCTION: gcc-minor-version # @RETURN: minor compiler version (minor: 3.[4].6) gcc-minor-version() { _gcc_fullversion '$2' "$@" } # @FUNCTION: gcc-micro-version # @RETURN: micro compiler version (micro: 3.4.[6]) gcc-micro-version() { _gcc_fullversion '$3' "$@" } # Returns the installation directory - internal toolchain # function for use by _gcc-specs-exists (for flag-o-matic). _gcc-install-dir() { echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\ awk '$1=="install:" {print $2}')" } # Returns true if the indicated specs file exists - internal toolchain # function for use by flag-o-matic. _gcc-specs-exists() { [[ -f $(_gcc-install-dir)/$1 ]] } # Returns requested gcc specs directive unprocessed - for used by # gcc-specs-directive() # Note; later specs normally overwrite earlier ones; however if a later # spec starts with '+' then it appends. # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" # as "Reading <file>", in order. Strictly speaking, if there's a # $(gcc_install_dir)/specs, the built-in specs aren't read, however by # the same token anything from 'gcc -dumpspecs' is overridden by # the contents of $(gcc_install_dir)/specs so the result is the # same either way. _gcc-specs-directive_raw() { local cc=$(tc-getCC) local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ 'BEGIN { pspec=""; spec=""; outside=1 } $1=="*"directive":" { pspec=spec; spec=""; outside=0; next } outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } { spec=spec $0 } END { print spec }' return 0 } # Return the requested gcc specs directive, with all included # specs expanded. # Note, it does not check for inclusion loops, which cause it # to never finish - but such loops are invalid for gcc and we're # assuming gcc is operational. gcc-specs-directive() { local directive subdname subdirective directive="$(_gcc-specs-directive_raw $1)" while [[ ${directive} == *%\(*\)* ]]; do subdname=${directive/*%\(} subdname=${subdname/\)*} subdirective="$(_gcc-specs-directive_raw ${subdname})" directive="${directive//\%(${subdname})/${subdirective}}" done echo "${directive}" return 0 } # Returns true if gcc sets relro gcc-specs-relro() { local directive directive=$(gcc-specs-directive link_command) return $([[ "${directive/\{!norelro:}" != "${directive}" ]]) } # Returns true if gcc sets now gcc-specs-now() { local directive directive=$(gcc-specs-directive link_command) return $([[ "${directive/\{!nonow:}" != "${directive}" ]]) } # Returns true if gcc builds PIEs gcc-specs-pie() { local directive directive=$(gcc-specs-directive cc1) return $([[ "${directive/\{!nopie:}" != "${directive}" ]]) } # Returns true if gcc builds with the stack protector gcc-specs-ssp() { local directive directive=$(gcc-specs-directive cc1) return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]]) } # Returns true if gcc upgrades fstack-protector to fstack-protector-all gcc-specs-ssp-to-all() { local directive directive=$(gcc-specs-directive cc1) return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]]) } # Returns true if gcc builds with fno-strict-overflow gcc-specs-nostrict() { local directive directive=$(gcc-specs-directive cc1) return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]) } # @FUNCTION: gen_usr_ldscript # @USAGE: [-a] <list of libs to create linker scripts for> # @DESCRIPTION: # This function generate linker scripts in /usr/lib for dynamic # libs in /lib. This is to fix linking problems when you have # the .so in /lib, and the .a in /usr/lib. What happens is that # in some cases when linking dynamic, the .a in /usr/lib is used # instead of the .so in /lib due to gcc/libtool tweaking ld's # library search path. This causes many builds to fail. # See bug #4411 for more info. # # Note that you should in general use the unversioned name of # the library (libfoo.so), as ldconfig should usually update it # correctly to point to the latest version of the library present. gen_usr_ldscript() { local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname) [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/ tc-is-static-only && return # Just make sure it exists dodir /usr/${libdir} if [[ $1 == "-a" ]] ; then auto=true shift dodir /${libdir} fi # OUTPUT_FORMAT gives hints to the linker as to what binary format # is referenced ... makes multilib saner output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" for lib in "$@" ; do local tlib if ${auto} ; then lib="lib${lib}${suffix}" else # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks. # This especially is for AIX where $(get_libname) can return ".a", # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident). [[ -r ${ED}/${libdir}/${lib} ]] || continue #TODO: better die here? fi case ${CTARGET:-${CHOST}} in *-darwin*) if ${auto} ; then tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib}) else tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib}) fi [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}" tlib=${tlib##*/} if ${auto} ; then mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die # some install_names are funky: they encode a version if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die fi rm -f "${ED}"/${libdir}/${lib} fi # Mach-O files have an id, which is like a soname, it tells how # another object linking against this lib should reference it. # Since we moved the lib from usr/lib into lib this reference is # wrong. Hence, we update it here. We don't configure with # libdir=/lib because that messes up libtool files. # Make sure we don't lose the specific version, so just modify the # existing install_name if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it local nowrite=yes fi install_name_tool \ -id "${EPREFIX}"/${libdir}/${tlib} \ "${ED}"/${libdir}/${tlib} || die "install_name_tool failed" [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}" # Now as we don't use GNU binutils and our linker doesn't # understand linker scripts, just create a symlink. pushd "${ED}/usr/${libdir}" > /dev/null ln -snf "../../${libdir}/${tlib}" "${lib}" popd > /dev/null ;; *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*) if ${auto} ; then mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die # no way to retrieve soname on these platforms (?) tlib=$(readlink "${ED}"/${libdir}/${lib}) tlib=${tlib##*/} if [[ -z ${tlib} ]] ; then # ok, apparently was not a symlink, don't remove it and # just link to it tlib=${lib} else rm -f "${ED}"/${libdir}/${lib} fi else tlib=${lib} fi # we don't have GNU binutils on these platforms, so we symlink # instead, which seems to work fine. Keep it relative, otherwise # we break some QA checks in Portage # on interix, the linker scripts would work fine in _most_ # situations. if a library links to such a linker script the # absolute path to the correct library is inserted into the binary, # which is wrong, since anybody linking _without_ libtool will miss # some dependencies, since the stupid linker cannot find libraries # hardcoded with absolute paths (as opposed to the loader, which # seems to be able to do this). # this has been seen while building shared-mime-info which needs # libxml2, but links without libtool (and does not add libz to the # command line by itself). pushd "${ED}/usr/${libdir}" > /dev/null ln -snf "../../${libdir}/${tlib}" "${lib}" popd > /dev/null ;; hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above. if ${auto} ; then tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}') [[ -z ${tlib} ]] && tlib=${lib} tlib=${tlib##*/} # 'internal name' can have a path component mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die # some SONAMEs are funky: they encode a version before the .so if [[ ${tlib} != ${lib}* ]] ; then mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die fi [[ ${tlib} != ${lib} ]] && rm -f "${ED}"/${libdir}/${lib} else tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}') [[ -z ${tlib} ]] && tlib=${lib} tlib=${tlib##*/} # 'internal name' can have a path component fi pushd "${ED}"/usr/${libdir} >/dev/null ln -snf "../../${libdir}/${tlib}" "${lib}" # need the internal name in usr/lib too, to be available at runtime # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes) [[ ${tlib} != ${lib} ]] && ln -snf "../../${libdir}/${tlib}" "${tlib}" popd >/dev/null ;; *) if ${auto} ; then tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib}) [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}" mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die # some SONAMEs are funky: they encode a version before the .so if [[ ${tlib} != ${lib}* ]] ; then mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die fi rm -f "${ED}"/${libdir}/${lib} else tlib=${lib} fi cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT /* GNU ld script Since Gentoo has critical dynamic libraries in /lib, and the static versions in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we run into linking problems. This "fake" dynamic lib is a linker script that redirects the linker to the real lib. And yes, this works in the cross- compiling scenario as the sysroot-ed linker will prepend the real path. See bug http://bugs.gentoo.org/4411 for more info. */ ${output_format} GROUP ( ${EPREFIX}/${libdir}/${tlib} ) END_LDSCRIPT ;; esac fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" done } fi