/[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 1.47 2005/10/10 21:19:43 vapier Exp $
4# 4#
5# Author: Toolchain Ninjas <ninjas@gentoo.org> 5# Author: 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 10inherit multilib
94 local host=$2 94 local host=$2
95 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 95 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
96 96
97 case ${host} in 97 case ${host} in
98 alpha*) echo alpha;; 98 alpha*) echo alpha;;
99 x86_64*) ninj x86_64 amd64;;
100 arm*) echo arm;; 99 arm*) echo arm;;
101 thumb*) echo arm;; 100 cris*) echo cris;;
102 hppa*) ninj parisc hppa;; 101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
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;;
107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
108 && ninj ppc64 ppc \ 108 && ninj ppc64 ppc \
109 || echo ppc 109 || echo ppc
110 ;; 110 ;;
111 s390*) echo s390;;
112 sh64*) ninj sh64 sh;;
113 sh*) echo sh;;
111 sparc64*) ninj sparc64 sparc;; 114 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 115 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 116 && ninj sparc64 sparc \
114 || echo sparc 117 || echo sparc
115 ;; 118 ;;
116 s390*) echo s390;; 119 vax*) echo vax;;
117 sh64*) ninj sh64 sh;; 120 x86_64*) ninj x86_64 amd64;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 121 *) echo ${ARCH};;
121 esac 122 esac
122} 123}
123tc-arch-kernel() { 124tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 125 tc-ninja_magic_to_arch kern $@
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 132 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*} 133 host=${host%%-*}
133 134
134 case ${host} in 135 case ${host} in
135 alpha*) echo big;; 136 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;; 137 arm*b*) echo big;;
138 arm*) echo little;; 138 arm*) echo little;;
139 thumb*) echo little;; 139 cris*) echo little;;
140 hppa*) echo big;; 140 hppa*) echo big;;
141 i?86*) echo little;;
141 ia64*) echo little;; 142 ia64*) echo little;;
142 m68*) echo big;; 143 m68*) echo big;;
143 mips*l*) echo little;; 144 mips*l*) echo little;;
144 mips*) echo big;; 145 mips*) echo big;;
145 powerpc*) echo big;; 146 powerpc*) echo big;;
146 sparc*) echo big;;
147 s390*) echo big;; 147 s390*) echo big;;
148 sh*b*) echo big;; 148 sh*b*) echo big;;
149 sh*) echo little;; 149 sh*) echo little;;
150 sparc*) echo big;;
150 i?86*) echo little;; 151 x86_64*) echo little;;
151 *) echo wtf;; 152 *) echo wtf;;
152 esac 153 esac
153} 154}
154 155
155# Returns the version as by `$CC -dumpversion` 156# Returns the version as by `$CC -dumpversion`
172gcc-micro-version() { 173gcc-micro-version() {
173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 174 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
174} 175}
175 176
176# Returns requested gcc specs directive 177# Returns requested gcc specs directive
177# Note; if a spec exists more than once (e.g. in more than one specs file) 178# Note; later specs normally overwrite earlier ones; however if a later
178# the last one read is the active definition - i.e. they do not accumulate, 179# spec starts with '+' then it appends.
179# each new definition replaces any previous definition. 180# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
181# as "Reading <file>", in order.
180gcc-specs-directive() { 182gcc-specs-directive() {
181 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}') 183 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
182 [[ -z ${specfiles} ]] && return 0 184 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
183 awk -v spec=$1 \
184'BEGIN { sstr=""; outside=1 } 185'BEGIN { pspec=""; spec=""; outside=1 }
185 $1=="*"spec":" { sstr=""; outside=0; next } 186$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
186 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } 187 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
187 { sstr=sstr $0 } 188 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
188END { print sstr }' ${specfiles} 189 { spec=spec $0 }
190END { print spec }'
191 return 0
189} 192}
190 193
191# Returns true if gcc sets relro 194# Returns true if gcc sets relro
192gcc-specs-relro() { 195gcc-specs-relro() {
193 local directive 196 local directive
210gcc-specs-ssp() { 213gcc-specs-ssp() {
211 local directive 214 local directive
212 directive=$(gcc-specs-directive cc1) 215 directive=$(gcc-specs-directive cc1)
213 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 216 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
214} 217}
218# Returns true if gcc upgrades fstack-protector to fstack-protector-all
219gcc-specs-ssp-to-all() {
220 local directive
221 directive=$(gcc-specs-directive cc1)
222 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
223}

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