/[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 1.70 2007/06/16 07:11:43 vapier 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=$1
190} 191}
191# Returns the Micro version 192# Returns the Micro version
192gcc-micro-version() { 193gcc-micro-version() {
193 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 194 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
194} 195}
196# Returns the installation directory - internal toolchain
197# function for use by _gcc-specs-exists (for flag-o-matic).
198_gcc-install-dir() {
199 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\
200 awk '$1=="install:" {print $2}')"
201}
202# Returns true if the indicated specs file exists - internal toolchain
203# function for use by flag-o-matic.
204_gcc-specs-exists() {
205 [[ -f $(_gcc-install-dir)/$1 ]]
206}
195 207
196# Returns requested gcc specs directive 208# Returns requested gcc specs directive unprocessed - for used by
209# gcc-specs-directive()
197# Note; later specs normally overwrite earlier ones; however if a later 210# Note; later specs normally overwrite earlier ones; however if a later
198# spec starts with '+' then it appends. 211# spec starts with '+' then it appends.
199# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" 212# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
200# as "Reading <file>", in order. 213# as "Reading <file>", in order. Strictly speaking, if there's a
214# $(gcc_install_dir)/specs, the built-in specs aren't read, however by
215# the same token anything from 'gcc -dumpspecs' is overridden by
216# the contents of $(gcc_install_dir)/specs so the result is the
217# same either way.
201gcc-specs-directive() { 218_gcc-specs-directive_raw() {
202 local cc=$(tc-getCC) 219 local cc=$(tc-getCC)
203 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') 220 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
204 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ 221 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
205'BEGIN { pspec=""; spec=""; outside=1 } 222'BEGIN { pspec=""; spec=""; outside=1 }
206$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } 223$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
209 { spec=spec $0 } 226 { spec=spec $0 }
210END { print spec }' 227END { print spec }'
211 return 0 228 return 0
212} 229}
213 230
231# Return the requested gcc specs directive, with all included
232# specs expanded.
233# Note, it does not check for inclusion loops, which cause it
234# to never finish - but such loops are invalid for gcc and we're
235# assuming gcc is operational.
236gcc-specs-directive() {
237 local directive subdname subdirective
238 directive="$(_gcc-specs-directive_raw $1)"
239 while [[ ${directive} == *%\(*\)* ]]; do
240 subdname=${directive/*%\(}
241 subdname=${subdname/\)*}
242 subdirective="$(_gcc-specs-directive_raw ${subdname})"
243 directive="${directive//\%(${subdname})/${subdirective}}"
244 done
245 echo "${directive}"
246 return 0
247}
248
214# Returns true if gcc sets relro 249# Returns true if gcc sets relro
215gcc-specs-relro() { 250gcc-specs-relro() {
216 local directive 251 local directive
217 directive=$(gcc-specs-directive link_command) 252 directive=$(gcc-specs-directive link_command)
218 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 253 return $([[ ${directive/\{!norelro:} != ${directive} ]])
256# gen_usr_ldscript libfoo.so 291# gen_usr_ldscript libfoo.so
257# 292#
258# Note that you should in general use the unversioned name of 293# Note that you should in general use the unversioned name of
259# the library, as ldconfig should usually update it correctly 294# the library, as ldconfig should usually update it correctly
260# to point to the latest version of the library present. 295# to point to the latest version of the library present.
261_tc_gen_usr_ldscript() { 296gen_usr_ldscript() {
262 local lib libdir=$(get_libdir) output_format="" 297 local lib libdir=$(get_libdir) output_format=""
263 # Just make sure it exists 298 # Just make sure it exists
264 dodir /usr/${libdir} 299 dodir /usr/${libdir}
265 300
266 # OUTPUT_FORMAT gives hints to the linker as to what binary format 301 # OUTPUT_FORMAT gives hints to the linker as to what binary format
288 END_LDSCRIPT 323 END_LDSCRIPT
289 fi 324 fi
290 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 325 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
291 done 326 done
292} 327}
293gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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