/[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 1.63 2006/12/16 10:31:12 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...)
178 esac 178 esac
179} 179}
180 180
181# Returns the version as by `$CC -dumpversion` 181# Returns the version as by `$CC -dumpversion`
182gcc-fullversion() { 182gcc-fullversion() {
183 echo "$($(tc-getCC) -dumpversion)" 183 $(tc-getCC "$@") -dumpversion
184} 184}
185# Returns the version, but only the <major>.<minor> 185# Returns the version, but only the <major>.<minor>
186gcc-version() { 186gcc-version() {
187 echo "$(gcc-fullversion | cut -f1,2 -d.)" 187 gcc-fullversion "$@" | cut -f1,2 -d.
188} 188}
189# Returns the Major version 189# Returns the Major version
190gcc-major-version() { 190gcc-major-version() {
191 echo "$(gcc-version | cut -f1 -d.)" 191 gcc-version "$@" | cut -f1 -d.
192} 192}
193# Returns the Minor version 193# Returns the Minor version
194gcc-minor-version() { 194gcc-minor-version() {
195 echo "$(gcc-version | cut -f2 -d.)" 195 gcc-version "$@" | cut -f2 -d.
196} 196}
197# Returns the Micro version 197# Returns the Micro version
198gcc-micro-version() { 198gcc-micro-version() {
199 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 199 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
200} 200}
201 201
202# Returns requested gcc specs directive 202# Returns requested gcc specs directive
203# Note; later specs normally overwrite earlier ones; however if a later 203# Note; later specs normally overwrite earlier ones; however if a later
204# spec starts with '+' then it appends. 204# spec starts with '+' then it appends.
245gcc-specs-ssp-to-all() { 245gcc-specs-ssp-to-all() {
246 local directive 246 local directive
247 directive=$(gcc-specs-directive cc1) 247 directive=$(gcc-specs-directive cc1)
248 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 248 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
249} 249}
250
251
252# This function generate linker scripts in /usr/lib for dynamic
253# libs in /lib. This is to fix linking problems when you have
254# the .so in /lib, and the .a in /usr/lib. What happens is that
255# in some cases when linking dynamic, the .a in /usr/lib is used
256# instead of the .so in /lib due to gcc/libtool tweaking ld's
257# library search path. This cause many builds to fail.
258# See bug #4411 for more info.
259#
260# To use, simply call:
261#
262# gen_usr_ldscript libfoo.so
263#
264# Note that you should in general use the unversioned name of
265# the library, as ldconfig should usually update it correctly
266# to point to the latest version of the library present.
267_tc_gen_usr_ldscript() {
268 local lib libdir=$(get_libdir) output_format=""
269 # Just make sure it exists
270 dodir /usr/${libdir}
271
272 # OUTPUT_FORMAT gives hints to the linker as to what binary format
273 # is referenced ... makes multilib saner
274 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
275 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
276
277 for lib in "$@" ; do
278 if [[ ${USERLAND} == "Darwin" ]] ; then
279 ewarn "Not creating fake dynamic library for $lib on Darwin;"
280 ewarn "making a symlink instead."
281 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
282 else
283 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
284 /* GNU ld script
285 Since Gentoo has critical dynamic libraries
286 in /lib, and the static versions in /usr/lib,
287 we need to have a "fake" dynamic lib in /usr/lib,
288 otherwise we run into linking problems.
289
290 See bug http://bugs.gentoo.org/4411 for more info.
291 */
292 ${output_format}
293 GROUP ( /${libdir}/${lib} )
294 END_LDSCRIPT
295 fi
296 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
297 done
298}
299gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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