/[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 1.43 2005/09/15 00:13:10 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...)
62 62
63 local search= 63 local search=
64 if [[ -n ${CBUILD} ]] ; then 64 if [[ -n ${CBUILD} ]] ; then
65 search=$(type -p ${CBUILD}-gcc) 65 search=$(type -p ${CBUILD}-gcc)
66 search=${search##*/} 66 search=${search##*/}
67 else
68 search=gcc
69 fi 67 fi
68 search=${search:-gcc}
70 69
71 export BUILD_CC=${search} 70 export BUILD_CC=${search}
72 echo "${search}" 71 echo "${search}"
73} 72}
74 73
97 96
98 case ${host} in 97 case ${host} in
99 alpha*) echo alpha;; 98 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;; 99 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;; 100 arm*) echo arm;;
101 thumb*) echo arm;;
102 hppa*) ninj parisc hppa;; 102 hppa*) ninj parisc hppa;;
103 ia64*) echo ia64;; 103 ia64*) echo ia64;;
104 m68*) echo m68k;; 104 m68*) echo m68k;;
105 mips*) echo mips;; 105 mips*) echo mips;;
106 powerpc64*) echo ppc64;; 106 powerpc64*) echo ppc64;;
134 case ${host} in 134 case ${host} in
135 alpha*) echo big;; 135 alpha*) echo big;;
136 x86_64*) echo little;; 136 x86_64*) echo little;;
137 arm*b*) echo big;; 137 arm*b*) echo big;;
138 arm*) echo little;; 138 arm*) echo little;;
139 thumb*) echo little;;
139 hppa*) echo big;; 140 hppa*) echo big;;
140 ia64*) echo little;; 141 ia64*) echo little;;
141 m68*) echo big;; 142 m68*) echo big;;
142 mips*l*) echo little;; 143 mips*l*) echo little;;
143 mips*) echo big;; 144 mips*) echo big;;
171gcc-micro-version() { 172gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173} 174}
174 175
175# Returns requested gcc specs directive 176# Returns requested gcc specs directive
176# Note; if a spec exists more than once (e.g. in more than one specs file) 177# Note; later specs normally overwrite earlier ones; however if a later
177# the last one read is the active definition - i.e. they do not accumulate, 178# spec starts with '+' then it appends.
178# each new definition replaces any previous definition. 179# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
180# as "Reading <file>", in order.
179gcc-specs-directive() { 181gcc-specs-directive() {
180 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}') 182 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
181 [[ -z ${specfiles} ]] && return 0 183 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
182 awk -v spec=$1 \
183'BEGIN { sstr=""; outside=1 } 184'BEGIN { pspec=""; spec=""; outside=1 }
184 $1=="*"spec":" { sstr=""; outside=0; next } 185$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
185 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 }
186 { sstr=sstr $0 } 187 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
187END { print sstr }' ${specfiles} 188 { spec=spec $0 }
189END { print spec }'
190 return 0
188} 191}
189 192
190# Returns true if gcc sets relro 193# Returns true if gcc sets relro
191gcc-specs-relro() { 194gcc-specs-relro() {
192 local directive 195 local directive
209gcc-specs-ssp() { 212gcc-specs-ssp() {
210 local directive 213 local directive
211 directive=$(gcc-specs-directive cc1) 214 directive=$(gcc-specs-directive cc1)
212 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 215 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
213} 216}
217# Returns true if gcc upgrades fstack-protector to fstack-protector-all
218gcc-specs-ssp-to-all() {
219 local directive
220 directive=$(gcc-specs-directive cc1)
221 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
222}
223

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