/[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 1.67 2007/03/04 21:03:58 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.71 2007/07/11 04:06:29 robbat2 Exp $
4# 4#
5# Maintainer: Toolchain Ninjas <toolchain@gentoo.org> 5# Maintainer: 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...)
9 9
10inherit multilib 10___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
11[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
11 12
12DESCRIPTION="Based on the ${ECLASS} eclass" 13DESCRIPTION="Based on the ${ECLASS} eclass"
13 14
14tc-getPROG() { 15tc-getPROG() {
15 local var=$1 16 local var=$1
169 tc-ninja_magic_to_arch kern $@ 170 tc-ninja_magic_to_arch kern $@
170} 171}
171tc-arch() { 172tc-arch() {
172 tc-ninja_magic_to_arch portage $@ 173 tc-ninja_magic_to_arch portage $@
173} 174}
175tc-endian() {
176 local host=$1
177 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
178 host=${host%%-*}
179
180 case ${host} in
181 alpha*) echo big;;
182 arm*b*) echo big;;
183 arm*) echo little;;
184 cris*) echo little;;
185 hppa*) echo big;;
186 i?86*) echo little;;
187 ia64*) echo little;;
188 m68*) echo big;;
189 mips*l*) echo little;;
190 mips*) echo big;;
191 powerpc*) echo big;;
192 s390*) echo big;;
193 sh*b*) echo big;;
194 sh*) echo little;;
195 sparc*) echo big;;
196 x86_64*) echo little;;
197 *) echo wtf;;
198 esac
199}
174 200
175# Returns the version as by `$CC -dumpversion` 201# Returns the version as by `$CC -dumpversion`
176gcc-fullversion() { 202gcc-fullversion() {
177 $(tc-getCC "$@") -dumpversion 203 $(tc-getCC "$@") -dumpversion
178} 204}
190} 216}
191# Returns the Micro version 217# Returns the Micro version
192gcc-micro-version() { 218gcc-micro-version() {
193 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 219 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
194} 220}
221# Returns the installation directory - internal toolchain
222# function for use by _gcc-specs-exists (for flag-o-matic).
223_gcc-install-dir() {
224 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\
225 awk '$1=="install:" {print $2}')"
226}
227# Returns true if the indicated specs file exists - internal toolchain
228# function for use by flag-o-matic.
229_gcc-specs-exists() {
230 [[ -f $(_gcc-install-dir)/$1 ]]
231}
195 232
196# Returns requested gcc specs directive 233# Returns requested gcc specs directive unprocessed - for used by
234# gcc-specs-directive()
197# Note; later specs normally overwrite earlier ones; however if a later 235# Note; later specs normally overwrite earlier ones; however if a later
198# spec starts with '+' then it appends. 236# spec starts with '+' then it appends.
199# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" 237# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
200# as "Reading <file>", in order. 238# as "Reading <file>", in order. Strictly speaking, if there's a
239# $(gcc_install_dir)/specs, the built-in specs aren't read, however by
240# the same token anything from 'gcc -dumpspecs' is overridden by
241# the contents of $(gcc_install_dir)/specs so the result is the
242# same either way.
201gcc-specs-directive() { 243_gcc-specs-directive_raw() {
202 local cc=$(tc-getCC) 244 local cc=$(tc-getCC)
203 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') 245 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
204 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ 246 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
205'BEGIN { pspec=""; spec=""; outside=1 } 247'BEGIN { pspec=""; spec=""; outside=1 }
206$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } 248$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
209 { spec=spec $0 } 251 { spec=spec $0 }
210END { print spec }' 252END { print spec }'
211 return 0 253 return 0
212} 254}
213 255
256# Return the requested gcc specs directive, with all included
257# specs expanded.
258# Note, it does not check for inclusion loops, which cause it
259# to never finish - but such loops are invalid for gcc and we're
260# assuming gcc is operational.
261gcc-specs-directive() {
262 local directive subdname subdirective
263 directive="$(_gcc-specs-directive_raw $1)"
264 while [[ ${directive} == *%\(*\)* ]]; do
265 subdname=${directive/*%\(}
266 subdname=${subdname/\)*}
267 subdirective="$(_gcc-specs-directive_raw ${subdname})"
268 directive="${directive//\%(${subdname})/${subdirective}}"
269 done
270 echo "${directive}"
271 return 0
272}
273
214# Returns true if gcc sets relro 274# Returns true if gcc sets relro
215gcc-specs-relro() { 275gcc-specs-relro() {
216 local directive 276 local directive
217 directive=$(gcc-specs-directive link_command) 277 directive=$(gcc-specs-directive link_command)
218 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 278 return $([[ ${directive/\{!norelro:} != ${directive} ]])
256# gen_usr_ldscript libfoo.so 316# gen_usr_ldscript libfoo.so
257# 317#
258# Note that you should in general use the unversioned name of 318# Note that you should in general use the unversioned name of
259# the library, as ldconfig should usually update it correctly 319# the library, as ldconfig should usually update it correctly
260# to point to the latest version of the library present. 320# to point to the latest version of the library present.
261_tc_gen_usr_ldscript() { 321gen_usr_ldscript() {
262 local lib libdir=$(get_libdir) output_format="" 322 local lib libdir=$(get_libdir) output_format=""
263 # Just make sure it exists 323 # Just make sure it exists
264 dodir /usr/${libdir} 324 dodir /usr/${libdir}
265 325
266 # OUTPUT_FORMAT gives hints to the linker as to what binary format 326 # OUTPUT_FORMAT gives hints to the linker as to what binary format
288 END_LDSCRIPT 348 END_LDSCRIPT
289 fi 349 fi
290 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 350 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
291 done 351 done
292} 352}
293gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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