/[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 1.68 2007/03/15 15:55:59 kevquinn 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...)
190} 190}
191# Returns the Micro version 191# Returns the Micro version
192gcc-micro-version() { 192gcc-micro-version() {
193 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 193 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
194} 194}
195# Returns the installation directory - internal toolchain
196# function for use by _gcc-specs-exists (for flag-o-matic).
197_gcc-install-dir() {
198 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\
199 awk '$1=="install:" {print $2}')"
200}
201# Returns true if the indicated specs file exists - internal toolchain
202# function for use by flag-o-matic.
203_gcc-specs-exists() {
204 [[ -f $(_gcc-install-dir)/$1 ]]
205}
195 206
196# Returns requested gcc specs directive 207# Returns requested gcc specs directive unprocessed - for used by
208# gcc-specs-directive()
197# Note; later specs normally overwrite earlier ones; however if a later 209# Note; later specs normally overwrite earlier ones; however if a later
198# spec starts with '+' then it appends. 210# spec starts with '+' then it appends.
199# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" 211# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
200# as "Reading <file>", in order. 212# as "Reading <file>", in order. Strictly speaking, if there's a
213# $(gcc_install_dir)/specs, the built-in specs aren't read, however by
214# the same token anything from 'gcc -dumpspecs' is overridden by
215# the contents of $(gcc_install_dir)/specs so the result is the
216# same either way.
201gcc-specs-directive() { 217_gcc-specs-directive_raw() {
202 local cc=$(tc-getCC) 218 local cc=$(tc-getCC)
203 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') 219 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
204 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ 220 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
205'BEGIN { pspec=""; spec=""; outside=1 } 221'BEGIN { pspec=""; spec=""; outside=1 }
206$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } 222$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
207 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } 223 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
208 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } 224 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
209 { spec=spec $0 } 225 { spec=spec $0 }
210END { print spec }' 226END { print spec }'
227 return 0
228}
229
230# Return the requested gcc specs directive, with all included
231# specs expanded.
232# Note, it does not check for inclusion loops, which cause it
233# to never finish - but such loops are invalid for gcc and we're
234# assuming gcc is operational.
235gcc-specs-directive() {
236 local directive subdname subdirective
237 directive="$(_gcc-specs-directive_raw $1)"
238 while [[ ${directive} == *%\(*\)* ]]; do
239 subdname=${directive/*%\(}
240 subdname=${subdname/\)*}
241 subdirective="$(_gcc-specs-directive_raw ${subdname})"
242 directive="${directive//\%(${subdname})/${subdirective}}"
243 done
244 echo "${directive}"
211 return 0 245 return 0
212} 246}
213 247
214# Returns true if gcc sets relro 248# Returns true if gcc sets relro
215gcc-specs-relro() { 249gcc-specs-relro() {

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