/[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 1.59 2006/06/28 16:19:46 kanaka 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...)
150 tc-ninja_magic_to_arch kern $@ 150 tc-ninja_magic_to_arch kern $@
151} 151}
152tc-arch() { 152tc-arch() {
153 tc-ninja_magic_to_arch portage $@ 153 tc-ninja_magic_to_arch portage $@
154} 154}
155tc-endian() {
156 local host=$1
157 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
158 host=${host%%-*}
159
160 case ${host} in
161 alpha*) echo big;;
162 arm*b*) echo big;;
163 arm*) echo little;;
164 cris*) echo little;;
165 hppa*) echo big;;
166 i?86*) echo little;;
167 ia64*) echo little;;
168 m68*) echo big;;
169 mips*l*) echo little;;
170 mips*) echo big;;
171 powerpc*) echo big;;
172 s390*) echo big;;
173 sh*b*) echo big;;
174 sh*) echo little;;
175 sparc*) echo big;;
176 x86_64*) echo little;;
177 *) echo wtf;;
178 esac
179}
180 155
181# Returns the version as by `$CC -dumpversion` 156# Returns the version as by `$CC -dumpversion`
182gcc-fullversion() { 157gcc-fullversion() {
183 echo "$($(tc-getCC) -dumpversion)" 158 $(tc-getCC "$@") -dumpversion
184} 159}
185# Returns the version, but only the <major>.<minor> 160# Returns the version, but only the <major>.<minor>
186gcc-version() { 161gcc-version() {
187 echo "$(gcc-fullversion | cut -f1,2 -d.)" 162 gcc-fullversion "$@" | cut -f1,2 -d.
188} 163}
189# Returns the Major version 164# Returns the Major version
190gcc-major-version() { 165gcc-major-version() {
191 echo "$(gcc-version | cut -f1 -d.)" 166 gcc-version "$@" | cut -f1 -d.
192} 167}
193# Returns the Minor version 168# Returns the Minor version
194gcc-minor-version() { 169gcc-minor-version() {
195 echo "$(gcc-version | cut -f2 -d.)" 170 gcc-version "$@" | cut -f2 -d.
196} 171}
197# Returns the Micro version 172# Returns the Micro version
198gcc-micro-version() { 173gcc-micro-version() {
199 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 174 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
200} 175}
201 176
202# Returns requested gcc specs directive 177# Returns requested gcc specs directive
203# Note; later specs normally overwrite earlier ones; however if a later 178# Note; later specs normally overwrite earlier ones; however if a later
204# spec starts with '+' then it appends. 179# spec starts with '+' then it appends.
245gcc-specs-ssp-to-all() { 220gcc-specs-ssp-to-all() {
246 local directive 221 local directive
247 directive=$(gcc-specs-directive cc1) 222 directive=$(gcc-specs-directive cc1)
248 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 223 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
249} 224}
225
226
227# This function generate linker scripts in /usr/lib for dynamic
228# libs in /lib. This is to fix linking problems when you have
229# the .so in /lib, and the .a in /usr/lib. What happens is that
230# in some cases when linking dynamic, the .a in /usr/lib is used
231# instead of the .so in /lib due to gcc/libtool tweaking ld's
232# library search path. This cause many builds to fail.
233# See bug #4411 for more info.
234#
235# To use, simply call:
236#
237# gen_usr_ldscript libfoo.so
238#
239# Note that you should in general use the unversioned name of
240# the library, as ldconfig should usually update it correctly
241# to point to the latest version of the library present.
242_tc_gen_usr_ldscript() {
243 local lib libdir=$(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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