/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2005 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 1.45 2005/10/06 01:52:51 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.46 2005/10/06 21:30:23 kevquinn Exp $
4# 4#
5# Author: Toolchain Ninjas <ninjas@gentoo.org> 5# Author: Toolchain Ninjas <ninjas@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...)
172gcc-micro-version() { 172gcc-micro-version() {
173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
174} 174}
175 175
176# Returns requested gcc specs directive 176# Returns requested gcc specs directive
177# Note; if a spec exists more than once (e.g. in more than one specs file) 177# Note; later specs normally overwrite earlier ones; however if a later
178# the last one read is the active definition - i.e. they do not accumulate, 178# spec starts with '+' then it appends.
179# each new definition replaces any previous definition. 179# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
180# as "Reading <file>", in order.
180gcc-specs-directive() { 181gcc-specs-directive() {
181 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}') 182 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
182 [[ -z ${specfiles} ]] && return 0 183 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
183 awk -v spec=$1 \
184'BEGIN { sstr=""; outside=1 } 184'BEGIN { pspec=""; spec=""; outside=1 }
185 $1=="*"spec":" { sstr=""; outside=0; next } 185$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
186 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } 186 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
187 { sstr=sstr $0 } 187 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
188END { print sstr }' ${specfiles} 188 { spec=spec $0 }
189END { print spec }'
190 return 0
189} 191}
190 192
191# Returns true if gcc sets relro 193# Returns true if gcc sets relro
192gcc-specs-relro() { 194gcc-specs-relro() {
193 local directive 195 local directive
210gcc-specs-ssp() { 212gcc-specs-ssp() {
211 local directive 213 local directive
212 directive=$(gcc-specs-directive cc1) 214 directive=$(gcc-specs-directive cc1)
213 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 215 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
214} 216}
217# Returns true if gcc upgrades fstack-protector to fstack-protector-all
218gcc-specs-ssp-to-all() {
219 local directive
220 directive=$(gcc-specs-directive cc1)
221 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
222}
223

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