/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2006 Gentoo Foundation 1# Copyright 1999-2006 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 1.57 2006/03/28 21:25:14 kevquinn Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.64 2007/01/07 11:39:08 vapier Exp $
4# 4#
5# Author: Toolchain Ninjas <toolchain@gentoo.org> 5# Author: Toolchain Ninjas <toolchain@gentoo.org>
6# 6#
7# This eclass contains (or should) functions to get common info 7# This eclass contains (or should) functions to get common info
8# about the toolchain (libc/compiler/binutils/etc...) 8# about the toolchain (libc/compiler/binutils/etc...)
33tc-getAR() { tc-getPROG AR ar "$@"; } 33tc-getAR() { tc-getPROG AR ar "$@"; }
34# Returns the name of the assembler 34# Returns the name of the assembler
35tc-getAS() { tc-getPROG AS as "$@"; } 35tc-getAS() { tc-getPROG AS as "$@"; }
36# Returns the name of the C compiler 36# Returns the name of the C compiler
37tc-getCC() { tc-getPROG CC gcc "$@"; } 37tc-getCC() { tc-getPROG CC gcc "$@"; }
38# Returns the name of the C preprocessor
39tc-getCPP() { tc-getPROG CPP cpp "$@"; }
38# Returns the name of the C++ compiler 40# Returns the name of the C++ compiler
39tc-getCXX() { tc-getPROG CXX g++ "$@"; } 41tc-getCXX() { tc-getPROG CXX g++ "$@"; }
40# Returns the name of the linker 42# Returns the name of the linker
41tc-getLD() { tc-getPROG LD ld "$@"; } 43tc-getLD() { tc-getPROG LD ld "$@"; }
44# Returns the name of the strip prog
45tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
42# Returns the name of the symbol/object thingy 46# Returns the name of the symbol/object thingy
43tc-getNM() { tc-getPROG NM nm "$@"; } 47tc-getNM() { tc-getPROG NM nm "$@"; }
44# Returns the name of the archiver indexer 48# Returns the name of the archiver indexer
45tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 49tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
50# Returns the name of the fortran 77 compiler
51tc-getF77() { tc-getPROG F77 f77 "$@"; }
52# Returns the name of the fortran 90 compiler
53tc-getF90() { tc-getPROG F90 gfortran "$@"; }
46# Returns the name of the fortran compiler 54# Returns the name of the fortran compiler
47tc-getF77() { tc-getPROG F77 f77 "$@"; } 55tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; }
48# Returns the name of the java compiler 56# Returns the name of the java compiler
49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 57tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
50 58
51# Returns the name of the C compiler for build 59# Returns the name of the C compiler for build
52tc-getBUILD_CC() { 60tc-getBUILD_CC() {
142 tc-ninja_magic_to_arch kern $@ 150 tc-ninja_magic_to_arch kern $@
143} 151}
144tc-arch() { 152tc-arch() {
145 tc-ninja_magic_to_arch portage $@ 153 tc-ninja_magic_to_arch portage $@
146} 154}
147tc-endian() {
148 local host=$1
149 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
150 host=${host%%-*}
151
152 case ${host} in
153 alpha*) echo big;;
154 arm*b*) echo big;;
155 arm*) echo little;;
156 cris*) echo little;;
157 hppa*) echo big;;
158 i?86*) echo little;;
159 ia64*) echo little;;
160 m68*) echo big;;
161 mips*l*) echo little;;
162 mips*) echo big;;
163 powerpc*) echo big;;
164 s390*) echo big;;
165 sh*b*) echo big;;
166 sh*) echo little;;
167 sparc*) echo big;;
168 x86_64*) echo little;;
169 *) echo wtf;;
170 esac
171}
172 155
173# Returns the version as by `$CC -dumpversion` 156# Returns the version as by `$CC -dumpversion`
174gcc-fullversion() { 157gcc-fullversion() {
175 echo "$($(tc-getCC) -dumpversion)" 158 $(tc-getCC "$@") -dumpversion
176} 159}
177# Returns the version, but only the <major>.<minor> 160# Returns the version, but only the <major>.<minor>
178gcc-version() { 161gcc-version() {
179 echo "$(gcc-fullversion | cut -f1,2 -d.)" 162 gcc-fullversion "$@" | cut -f1,2 -d.
180} 163}
181# Returns the Major version 164# Returns the Major version
182gcc-major-version() { 165gcc-major-version() {
183 echo "$(gcc-version | cut -f1 -d.)" 166 gcc-version "$@" | cut -f1 -d.
184} 167}
185# Returns the Minor version 168# Returns the Minor version
186gcc-minor-version() { 169gcc-minor-version() {
187 echo "$(gcc-version | cut -f2 -d.)" 170 gcc-version "$@" | cut -f2 -d.
188} 171}
189# Returns the Micro version 172# Returns the Micro version
190gcc-micro-version() { 173gcc-micro-version() {
191 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 174 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
192} 175}
193 176
194# Returns requested gcc specs directive 177# Returns requested gcc specs directive
195# Note; later specs normally overwrite earlier ones; however if a later 178# Note; later specs normally overwrite earlier ones; however if a later
196# spec starts with '+' then it appends. 179# spec starts with '+' then it appends.
237gcc-specs-ssp-to-all() { 220gcc-specs-ssp-to-all() {
238 local directive 221 local directive
239 directive=$(gcc-specs-directive cc1) 222 directive=$(gcc-specs-directive cc1)
240 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 223 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
241} 224}
225
226
227# This function generate linker scripts in /usr/lib for dynamic
228# libs in /lib. This is to fix linking problems when you have
229# the .so in /lib, and the .a in /usr/lib. What happens is that
230# in some cases when linking dynamic, the .a in /usr/lib is used
231# instead of the .so in /lib due to gcc/libtool tweaking ld's
232# library search path. This cause many builds to fail.
233# See bug #4411 for more info.
234#
235# To use, simply call:
236#
237# gen_usr_ldscript libfoo.so
238#
239# Note that you should in general use the unversioned name of
240# the library, as ldconfig should usually update it correctly
241# to point to the latest version of the library present.
242_tc_gen_usr_ldscript() {
243 local lib libdir=$(get_libdir) output_format=""
244 # Just make sure it exists
245 dodir /usr/${libdir}
246
247 # OUTPUT_FORMAT gives hints to the linker as to what binary format
248 # is referenced ... makes multilib saner
249 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
250 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
251
252 for lib in "$@" ; do
253 if [[ ${USERLAND} == "Darwin" ]] ; then
254 ewarn "Not creating fake dynamic library for $lib on Darwin;"
255 ewarn "making a symlink instead."
256 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
257 else
258 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
259 /* GNU ld script
260 Since Gentoo has critical dynamic libraries
261 in /lib, and the static versions in /usr/lib,
262 we need to have a "fake" dynamic lib in /usr/lib,
263 otherwise we run into linking problems.
264
265 See bug http://bugs.gentoo.org/4411 for more info.
266 */
267 ${output_format}
268 GROUP ( /${libdir}/${lib} )
269 END_LDSCRIPT
270 fi
271 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
272 done
273}
274gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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