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# Copyright 1999-2007 Gentoo Foundation |
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# Distributed under the terms of the GNU General Public License v2 |
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# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.78 2008/07/03 05:26:47 dberkholz Exp $ |
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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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___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" |
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[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib |
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eradicator |
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vapier |
1.1 |
DESCRIPTION="Based on the ${ECLASS} eclass" |
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tc-getPROG() { |
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local var=$1 |
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local prog=$2 |
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|
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1.17 |
if [[ -n ${!var} ]] ; then |
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1.1 |
echo "${!var}" |
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return 0 |
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fi |
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eradicator |
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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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|
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export ${var}=${prog} |
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echo "${!var}" |
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} |
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# @FUNCTION: tc-getAR |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the archiver |
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tc-getAR() { tc-getPROG AR ar "$@"; } |
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# @FUNCTION: tc-getAS |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the assembler |
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vapier |
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tc-getAS() { tc-getPROG AS as "$@"; } |
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vapier |
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# @FUNCTION: tc-getCC |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the C compiler |
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tc-getCC() { tc-getPROG CC gcc "$@"; } |
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# @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 |
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tc-getCPP() { tc-getPROG CPP cpp "$@"; } |
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# @FUNCTION: tc-getCXX |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the C++ compiler |
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tc-getCXX() { tc-getPROG CXX g++ "$@"; } |
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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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tc-getLD() { tc-getPROG LD ld "$@"; } |
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# @FUNCTION: tc-getSTRIP |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the strip program |
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kanaka |
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tc-getSTRIP() { tc-getPROG STRIP strip "$@"; } |
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# @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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tc-getNM() { tc-getPROG NM nm "$@"; } |
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# @FUNCTION: tc-getRANLIB |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the archiver indexer |
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tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } |
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# @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 |
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tc-getF77() { tc-getPROG F77 f77 "$@"; } |
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dberkholz |
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# @FUNCTION: tc-getFC |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the Fortran 90 compiler |
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dberkholz |
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tc-getFC() { tc-getPROG FC gfortran "$@"; } |
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vapier |
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# @FUNCTION: tc-getGCJ |
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# @USAGE: [toolchain prefix] |
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# @RETURN: name of the java compiler |
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tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } |
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|
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# @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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tc-getBUILD_CC() { |
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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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|
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local search= |
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if [[ -n ${CBUILD} ]] ; then |
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search=$(type -p ${CBUILD}-gcc) |
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search=${search##*/} |
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fi |
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search=${search:-gcc} |
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|
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export BUILD_CC=${search} |
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echo "${search}" |
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} |
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|
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# @FUNCTION: tc-export |
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# @USAGE: <list of toolchain variables> |
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# @DESCRIPTION: |
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# Quick way to export a bunch of compiler vars at once. |
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tc-export() { |
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local var |
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for var in "$@" ; do |
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[[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'" |
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eval tc-get${var} > /dev/null |
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done |
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} |
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# @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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tc-is-cross-compiler() { |
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return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) |
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1.12 |
} |
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# @FUNCTION: tc-is-softfloat |
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# @DESCRIPTION: |
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# See if this toolchain is a softfloat based one. |
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# @CODE |
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# 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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# @CODE |
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# 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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bfin*|h8300*) |
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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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swegener |
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# Parse information from CBUILD/CHOST/CTARGET rather than |
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# use external variables from the profile. |
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tc-ninja_magic_to_arch() { |
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ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } |
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local type=$1 |
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local host=$2 |
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eradicator |
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[[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
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vapier |
1.19 |
|
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case ${host} in |
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alpha*) echo alpha;; |
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arm*) echo arm;; |
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avr*) ninj avr32 avr;; |
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bfin*) ninj blackfin bfin;; |
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cris*) echo cris;; |
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vapier |
1.19 |
hppa*) ninj parisc hppa;; |
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vapier |
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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 |
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# FreeBSD still uses i386 |
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if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then |
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echo i386 |
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else |
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echo x86 |
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fi |
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;; |
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ia64*) echo ia64;; |
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vapier |
1.23 |
m68*) echo m68k;; |
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vapier |
1.19 |
mips*) echo mips;; |
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vapier |
1.52 |
nios2*) echo nios2;; |
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nios*) echo nios;; |
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vapier |
1.49 |
powerpc*) |
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# Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees |
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josejx |
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# have been unified into simply 'powerpc', but until 2.6.16, |
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# ppc32 is still using ARCH="ppc" as default |
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if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then |
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vapier |
1.49 |
echo powerpc |
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josejx |
1.54 |
elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then |
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dostrow |
1.55 |
if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then |
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josejx |
1.54 |
echo powerpc |
194 |
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else |
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echo ppc |
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swegener |
1.56 |
fi |
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vapier |
1.49 |
elif [[ ${host} == powerpc64* ]] ; then |
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echo ppc64 |
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dostrow |
1.51 |
elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then |
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ninj ppc64 ppc |
201 |
vapier |
1.49 |
else |
202 |
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echo ppc |
203 |
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fi |
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dostrow |
1.37 |
;; |
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vapier |
1.47 |
s390*) echo s390;; |
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sh64*) ninj sh64 sh;; |
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sh*) echo sh;; |
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vapier |
1.19 |
sparc64*) ninj sparc64 sparc;; |
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vapier |
1.28 |
sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ |
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&& ninj sparc64 sparc \ |
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|| echo sparc |
212 |
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;; |
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vapier |
1.47 |
vax*) echo vax;; |
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vapier |
1.75 |
x86_64*) |
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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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if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then |
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echo x86 |
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else |
220 |
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ninj x86_64 amd64 |
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fi |
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;; |
223 |
vapier |
1.73 |
|
224 |
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# since our usage of tc-arch is largely concerned with |
225 |
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# normalizing inputs for testing ${CTARGET}, let's filter |
226 |
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# other cross targets (mingw and such) into the unknown. |
227 |
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*) echo unknown;; |
228 |
vapier |
1.19 |
esac |
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} |
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vapier |
1.74 |
# @FUNCTION: tc-arch-kernel |
231 |
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# @USAGE: [toolchain prefix] |
232 |
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# @RETURN: name of the kernel arch according to the compiler target |
233 |
vapier |
1.20 |
tc-arch-kernel() { |
234 |
vapier |
1.74 |
tc-ninja_magic_to_arch kern "$@" |
235 |
vapier |
1.19 |
} |
236 |
vapier |
1.74 |
# @FUNCTION: tc-arch |
237 |
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# @USAGE: [toolchain prefix] |
238 |
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# @RETURN: name of the portage arch according to the compiler target |
239 |
vapier |
1.20 |
tc-arch() { |
240 |
vapier |
1.74 |
tc-ninja_magic_to_arch portage "$@" |
241 |
vapier |
1.19 |
} |
242 |
vapier |
1.74 |
|
243 |
robbat2 |
1.71 |
tc-endian() { |
244 |
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local host=$1 |
245 |
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[[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
246 |
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host=${host%%-*} |
247 |
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248 |
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case ${host} in |
249 |
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alpha*) echo big;; |
250 |
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arm*b*) echo big;; |
251 |
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arm*) echo little;; |
252 |
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cris*) echo little;; |
253 |
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hppa*) echo big;; |
254 |
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i?86*) echo little;; |
255 |
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ia64*) echo little;; |
256 |
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m68*) echo big;; |
257 |
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mips*l*) echo little;; |
258 |
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mips*) echo big;; |
259 |
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powerpc*) echo big;; |
260 |
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s390*) echo big;; |
261 |
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sh*b*) echo big;; |
262 |
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sh*) echo little;; |
263 |
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sparc*) echo big;; |
264 |
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x86_64*) echo little;; |
265 |
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*) echo wtf;; |
266 |
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esac |
267 |
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} |
268 |
vapier |
1.19 |
|
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vapier |
1.74 |
# @FUNCTION: gcc-fullversion |
270 |
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# @RETURN: compiler version (major.minor.micro: [3.4.6]) |
271 |
vapier |
1.1 |
gcc-fullversion() { |
272 |
vapier |
1.63 |
$(tc-getCC "$@") -dumpversion |
273 |
vapier |
1.1 |
} |
274 |
vapier |
1.74 |
# @FUNCTION: gcc-version |
275 |
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# @RETURN: compiler version (major.minor: [3.4].6) |
276 |
vapier |
1.1 |
gcc-version() { |
277 |
vapier |
1.63 |
gcc-fullversion "$@" | cut -f1,2 -d. |
278 |
vapier |
1.1 |
} |
279 |
vapier |
1.74 |
# @FUNCTION: gcc-major-version |
280 |
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# @RETURN: major compiler version (major: [3].4.6) |
281 |
vapier |
1.1 |
gcc-major-version() { |
282 |
vapier |
1.63 |
gcc-version "$@" | cut -f1 -d. |
283 |
vapier |
1.1 |
} |
284 |
vapier |
1.74 |
# @FUNCTION: gcc-minor-version |
285 |
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# @RETURN: minor compiler version (minor: 3.[4].6) |
286 |
vapier |
1.1 |
gcc-minor-version() { |
287 |
vapier |
1.63 |
gcc-version "$@" | cut -f2 -d. |
288 |
vapier |
1.1 |
} |
289 |
vapier |
1.74 |
# @FUNCTION: gcc-micro-version |
290 |
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# @RETURN: micro compiler version (micro: 3.4.[6]) |
291 |
vapier |
1.1 |
gcc-micro-version() { |
292 |
vapier |
1.63 |
gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- |
293 |
vapier |
1.1 |
} |
294 |
vapier |
1.74 |
|
295 |
kevquinn |
1.68 |
# Returns the installation directory - internal toolchain |
296 |
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# function for use by _gcc-specs-exists (for flag-o-matic). |
297 |
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_gcc-install-dir() { |
298 |
vapier |
1.76 |
echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\ |
299 |
kevquinn |
1.68 |
awk '$1=="install:" {print $2}')" |
300 |
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} |
301 |
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# Returns true if the indicated specs file exists - internal toolchain |
302 |
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# function for use by flag-o-matic. |
303 |
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_gcc-specs-exists() { |
304 |
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[[ -f $(_gcc-install-dir)/$1 ]] |
305 |
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} |
306 |
kevquinn |
1.41 |
|
307 |
kevquinn |
1.68 |
# Returns requested gcc specs directive unprocessed - for used by |
308 |
|
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# gcc-specs-directive() |
309 |
kevquinn |
1.46 |
# Note; later specs normally overwrite earlier ones; however if a later |
310 |
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# spec starts with '+' then it appends. |
311 |
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# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" |
312 |
kevquinn |
1.68 |
# as "Reading <file>", in order. Strictly speaking, if there's a |
313 |
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# $(gcc_install_dir)/specs, the built-in specs aren't read, however by |
314 |
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# the same token anything from 'gcc -dumpspecs' is overridden by |
315 |
|
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# the contents of $(gcc_install_dir)/specs so the result is the |
316 |
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# same either way. |
317 |
|
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_gcc-specs-directive_raw() { |
318 |
kevquinn |
1.57 |
local cc=$(tc-getCC) |
319 |
|
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local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') |
320 |
|
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${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ |
321 |
kevquinn |
1.46 |
'BEGIN { pspec=""; spec=""; outside=1 } |
322 |
|
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$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } |
323 |
kevquinn |
1.41 |
outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } |
324 |
kevquinn |
1.46 |
spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } |
325 |
|
|
{ spec=spec $0 } |
326 |
|
|
END { print spec }' |
327 |
|
|
return 0 |
328 |
kevquinn |
1.41 |
} |
329 |
|
|
|
330 |
kevquinn |
1.68 |
# Return the requested gcc specs directive, with all included |
331 |
|
|
# specs expanded. |
332 |
|
|
# Note, it does not check for inclusion loops, which cause it |
333 |
|
|
# to never finish - but such loops are invalid for gcc and we're |
334 |
|
|
# assuming gcc is operational. |
335 |
|
|
gcc-specs-directive() { |
336 |
|
|
local directive subdname subdirective |
337 |
|
|
directive="$(_gcc-specs-directive_raw $1)" |
338 |
|
|
while [[ ${directive} == *%\(*\)* ]]; do |
339 |
|
|
subdname=${directive/*%\(} |
340 |
|
|
subdname=${subdname/\)*} |
341 |
|
|
subdirective="$(_gcc-specs-directive_raw ${subdname})" |
342 |
|
|
directive="${directive//\%(${subdname})/${subdirective}}" |
343 |
|
|
done |
344 |
|
|
echo "${directive}" |
345 |
|
|
return 0 |
346 |
|
|
} |
347 |
|
|
|
348 |
kevquinn |
1.41 |
# Returns true if gcc sets relro |
349 |
|
|
gcc-specs-relro() { |
350 |
|
|
local directive |
351 |
|
|
directive=$(gcc-specs-directive link_command) |
352 |
|
|
return $([[ ${directive/\{!norelro:} != ${directive} ]]) |
353 |
|
|
} |
354 |
|
|
# Returns true if gcc sets now |
355 |
|
|
gcc-specs-now() { |
356 |
|
|
local directive |
357 |
|
|
directive=$(gcc-specs-directive link_command) |
358 |
|
|
return $([[ ${directive/\{!nonow:} != ${directive} ]]) |
359 |
|
|
} |
360 |
|
|
# Returns true if gcc builds PIEs |
361 |
|
|
gcc-specs-pie() { |
362 |
|
|
local directive |
363 |
|
|
directive=$(gcc-specs-directive cc1) |
364 |
|
|
return $([[ ${directive/\{!nopie:} != ${directive} ]]) |
365 |
|
|
} |
366 |
|
|
# Returns true if gcc builds with the stack protector |
367 |
|
|
gcc-specs-ssp() { |
368 |
|
|
local directive |
369 |
|
|
directive=$(gcc-specs-directive cc1) |
370 |
|
|
return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) |
371 |
|
|
} |
372 |
kevquinn |
1.46 |
# Returns true if gcc upgrades fstack-protector to fstack-protector-all |
373 |
|
|
gcc-specs-ssp-to-all() { |
374 |
|
|
local directive |
375 |
|
|
directive=$(gcc-specs-directive cc1) |
376 |
|
|
return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) |
377 |
|
|
} |
378 |
vapier |
1.60 |
|
379 |
|
|
|
380 |
vapier |
1.74 |
# @FUNCTION: gen_usr_ldscript |
381 |
|
|
# @USAGE: <list of libs to create linker scripts for> |
382 |
|
|
# @DESCRIPTION: |
383 |
vapier |
1.60 |
# This function generate linker scripts in /usr/lib for dynamic |
384 |
|
|
# libs in /lib. This is to fix linking problems when you have |
385 |
|
|
# the .so in /lib, and the .a in /usr/lib. What happens is that |
386 |
|
|
# in some cases when linking dynamic, the .a in /usr/lib is used |
387 |
|
|
# instead of the .so in /lib due to gcc/libtool tweaking ld's |
388 |
vapier |
1.74 |
# library search path. This causes many builds to fail. |
389 |
vapier |
1.60 |
# See bug #4411 for more info. |
390 |
|
|
# |
391 |
|
|
# Note that you should in general use the unversioned name of |
392 |
vapier |
1.74 |
# the library (libfoo.so), as ldconfig should usually update it |
393 |
|
|
# correctly to point to the latest version of the library present. |
394 |
vapier |
1.70 |
gen_usr_ldscript() { |
395 |
vapier |
1.60 |
local lib libdir=$(get_libdir) output_format="" |
396 |
|
|
# Just make sure it exists |
397 |
|
|
dodir /usr/${libdir} |
398 |
|
|
|
399 |
|
|
# OUTPUT_FORMAT gives hints to the linker as to what binary format |
400 |
|
|
# is referenced ... makes multilib saner |
401 |
|
|
output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') |
402 |
|
|
[[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" |
403 |
|
|
|
404 |
|
|
for lib in "$@" ; do |
405 |
vapier |
1.62 |
if [[ ${USERLAND} == "Darwin" ]] ; then |
406 |
|
|
ewarn "Not creating fake dynamic library for $lib on Darwin;" |
407 |
grobian |
1.61 |
ewarn "making a symlink instead." |
408 |
|
|
dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}" |
409 |
|
|
else |
410 |
|
|
cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT |
411 |
|
|
/* GNU ld script |
412 |
|
|
Since Gentoo has critical dynamic libraries |
413 |
|
|
in /lib, and the static versions in /usr/lib, |
414 |
|
|
we need to have a "fake" dynamic lib in /usr/lib, |
415 |
|
|
otherwise we run into linking problems. |
416 |
|
|
|
417 |
|
|
See bug http://bugs.gentoo.org/4411 for more info. |
418 |
|
|
*/ |
419 |
|
|
${output_format} |
420 |
|
|
GROUP ( /${libdir}/${lib} ) |
421 |
|
|
END_LDSCRIPT |
422 |
|
|
fi |
423 |
vapier |
1.60 |
fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" |
424 |
|
|
done |
425 |
|
|
} |