/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2007 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.75 2008/01/02 01:01:03 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.90 2009/04/05 07:50:08 grobian Exp $
4 4
5# @ECLASS: toolchain-funcs.eclass 5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
8# @BLURB: functions to query common info about the toolchain 8# @BLURB: functions to query common info about the toolchain
… …
70tc-getNM() { tc-getPROG NM nm "$@"; } 70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB 71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix] 72# @USAGE: [toolchain prefix]
73# @RETURN: name of the archiver indexer 73# @RETURN: name of the archiver indexer
74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getOBJCOPY
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the object copier
78tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
75# @FUNCTION: tc-getF77 79# @FUNCTION: tc-getF77
76# @USAGE: [toolchain prefix] 80# @USAGE: [toolchain prefix]
77# @RETURN: name of the Fortran 77 compiler 81# @RETURN: name of the Fortran 77 compiler
78tc-getF77() { tc-getPROG F77 f77 "$@"; } 82tc-getF77() { tc-getPROG F77 f77 "$@"; }
79# @FUNCTION: tc-getF90 83# @FUNCTION: tc-getFC
80# @USAGE: [toolchain prefix] 84# @USAGE: [toolchain prefix]
81# @RETURN: name of the Fortran 90 compiler 85# @RETURN: name of the Fortran 90 compiler
82tc-getF90() { tc-getPROG F90 gfortran "$@"; } 86tc-getFC() { tc-getPROG FC gfortran "$@"; }
83# @FUNCTION: tc-getFORTRAN
84# @USAGE: [toolchain prefix]
85# @RETURN: name of the Fortran compiler
86tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; }
87# @FUNCTION: tc-getGCJ 87# @FUNCTION: tc-getGCJ
88# @USAGE: [toolchain prefix] 88# @USAGE: [toolchain prefix]
89# @RETURN: name of the java compiler 89# @RETURN: name of the java compiler
90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91 91
… …
118# @DESCRIPTION: 118# @DESCRIPTION:
119# Quick way to export a bunch of compiler vars at once. 119# Quick way to export a bunch of compiler vars at once.
120tc-export() { 120tc-export() {
121 local var 121 local var
122 for var in "$@" ; do 122 for var in "$@" ; do
123 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
123 eval tc-get${var} > /dev/null 124 eval tc-get${var} > /dev/null
124 done 125 done
125} 126}
126 127
127# @FUNCTION: tc-is-cross-compiler 128# @FUNCTION: tc-is-cross-compiler
… …
171 cris*) echo cris;; 172 cris*) echo cris;;
172 hppa*) ninj parisc hppa;; 173 hppa*) ninj parisc hppa;;
173 i?86*) 174 i?86*)
174 # Starting with linux-2.6.24, the 'x86_64' and 'i386' 175 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
175 # trees have been unified into 'x86'. 176 # trees have been unified into 'x86'.
177 # FreeBSD still uses i386
176 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) ]] ; then 178 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
177 echo i386 179 echo i386
178 else 180 else
179 echo x86 181 echo x86
180 fi 182 fi
181 ;; 183 ;;
… …
295} 297}
296 298
297# Returns the installation directory - internal toolchain 299# Returns the installation directory - internal toolchain
298# function for use by _gcc-specs-exists (for flag-o-matic). 300# function for use by _gcc-specs-exists (for flag-o-matic).
299_gcc-install-dir() { 301_gcc-install-dir() {
300 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ 302 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
301 awk '$1=="install:" {print $2}')" 303 awk '$1=="install:" {print $2}')"
302} 304}
303# Returns true if the indicated specs file exists - internal toolchain 305# Returns true if the indicated specs file exists - internal toolchain
304# function for use by flag-o-matic. 306# function for use by flag-o-matic.
305_gcc-specs-exists() { 307_gcc-specs-exists() {
… …
349 351
350# Returns true if gcc sets relro 352# Returns true if gcc sets relro
351gcc-specs-relro() { 353gcc-specs-relro() {
352 local directive 354 local directive
353 directive=$(gcc-specs-directive link_command) 355 directive=$(gcc-specs-directive link_command)
354 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 356 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
355} 357}
356# Returns true if gcc sets now 358# Returns true if gcc sets now
357gcc-specs-now() { 359gcc-specs-now() {
358 local directive 360 local directive
359 directive=$(gcc-specs-directive link_command) 361 directive=$(gcc-specs-directive link_command)
360 return $([[ ${directive/\{!nonow:} != ${directive} ]]) 362 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
361} 363}
362# Returns true if gcc builds PIEs 364# Returns true if gcc builds PIEs
363gcc-specs-pie() { 365gcc-specs-pie() {
364 local directive 366 local directive
365 directive=$(gcc-specs-directive cc1) 367 directive=$(gcc-specs-directive cc1)
366 return $([[ ${directive/\{!nopie:} != ${directive} ]]) 368 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
367} 369}
368# Returns true if gcc builds with the stack protector 370# Returns true if gcc builds with the stack protector
369gcc-specs-ssp() { 371gcc-specs-ssp() {
370 local directive 372 local directive
371 directive=$(gcc-specs-directive cc1) 373 directive=$(gcc-specs-directive cc1)
372 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 374 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
373} 375}
374# Returns true if gcc upgrades fstack-protector to fstack-protector-all 376# Returns true if gcc upgrades fstack-protector to fstack-protector-all
375gcc-specs-ssp-to-all() { 377gcc-specs-ssp-to-all() {
376 local directive 378 local directive
377 directive=$(gcc-specs-directive cc1) 379 directive=$(gcc-specs-directive cc1)
378 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 380 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
381}
382# Returns true if gcc builds with fno-strict-overflow
383gcc-specs-nostrict() {
384 local directive
385 directive=$(gcc-specs-directive cc1)
386 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
379} 387}
380 388
381 389
382# @FUNCTION: gen_usr_ldscript 390# @FUNCTION: gen_usr_ldscript
383# @USAGE: <list of libs to create linker scripts for> 391# @USAGE: [-a] <list of libs to create linker scripts for>
384# @DESCRIPTION: 392# @DESCRIPTION:
385# This function generate linker scripts in /usr/lib for dynamic 393# This function generate linker scripts in /usr/lib for dynamic
386# libs in /lib. This is to fix linking problems when you have 394# libs in /lib. This is to fix linking problems when you have
387# the .so in /lib, and the .a in /usr/lib. What happens is that 395# the .so in /lib, and the .a in /usr/lib. What happens is that
388# in some cases when linking dynamic, the .a in /usr/lib is used 396# in some cases when linking dynamic, the .a in /usr/lib is used
… …
392# 400#
393# Note that you should in general use the unversioned name of 401# Note that you should in general use the unversioned name of
394# the library (libfoo.so), as ldconfig should usually update it 402# the library (libfoo.so), as ldconfig should usually update it
395# correctly to point to the latest version of the library present. 403# correctly to point to the latest version of the library present.
396gen_usr_ldscript() { 404gen_usr_ldscript() {
397 local lib libdir=$(get_libdir) output_format="" 405 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
398 # Just make sure it exists 406 # Just make sure it exists
399 dodir /usr/${libdir} 407 dodir /usr/${libdir}
408
409 if [[ $1 == "-a" ]] ; then
410 auto=true
411 shift
412 dodir /${libdir}
413 fi
400 414
401 # OUTPUT_FORMAT gives hints to the linker as to what binary format 415 # OUTPUT_FORMAT gives hints to the linker as to what binary format
402 # is referenced ... makes multilib saner 416 # is referenced ... makes multilib saner
403 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 417 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
404 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 418 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
… …
407 if [[ ${USERLAND} == "Darwin" ]] ; then 421 if [[ ${USERLAND} == "Darwin" ]] ; then
408 ewarn "Not creating fake dynamic library for $lib on Darwin;" 422 ewarn "Not creating fake dynamic library for $lib on Darwin;"
409 ewarn "making a symlink instead." 423 ewarn "making a symlink instead."
410 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}" 424 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
411 else 425 else
426 local tlib
427 if ${auto} ; then
428 lib="lib${lib}${suffix}"
429 tlib=$(scanelf -qF'%S#F' "${D}"/usr/${libdir}/${lib})
430 mv "${D}"/usr/${libdir}/${lib}* "${D}"/${libdir}/ || die
431 # some SONAMEs are funky: they encode a version before the .so
432 if [[ ${tlib} != ${lib}* ]] ; then
433 mv "${D}"/usr/${libdir}/${tlib}* "${D}"/${libdir}/ || die
434 fi
435 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
436 rm -f "${D}"/${libdir}/${lib}
437 else
438 tlib=${lib}
439 fi
412 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 440 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
413 /* GNU ld script 441 /* GNU ld script
414 Since Gentoo has critical dynamic libraries 442 Since Gentoo has critical dynamic libraries in /lib, and the static versions
415 in /lib, and the static versions in /usr/lib, 443 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
416 we need to have a "fake" dynamic lib in /usr/lib, 444 run into linking problems. This "fake" dynamic lib is a linker script that
417 otherwise we run into linking problems. 445 redirects the linker to the real lib. And yes, this works in the cross-
446 compiling scenario as the sysroot-ed linker will prepend the real path.
418 447
419 See bug http://bugs.gentoo.org/4411 for more info. 448 See bug http://bugs.gentoo.org/4411 for more info.
420 */ 449 */
421 ${output_format} 450 ${output_format}
422 GROUP ( /${libdir}/${lib} ) 451 GROUP ( /${libdir}/${tlib} )
423 END_LDSCRIPT 452 END_LDSCRIPT
453 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
424 fi 454 fi
425 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
426 done 455 done
427} 456}
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