/[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 1.48 2005/11/03 10:10:48 eradicator 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
20 return 0 20 return 0
21 fi 21 fi
22 22
23 local search= 23 local search=
24 [[ -n $3 ]] && search=$(type -p "$3-${prog}") 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
25 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
26 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}") 25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
27 [[ -n ${search} ]] && prog=${search##*/} 26 [[ -n ${search} ]] && prog=${search##*/}
28 27
29 export ${var}=${prog} 28 export ${var}=${prog}
30 echo "${!var}" 29 echo "${!var}"
94 local host=$2 93 local host=$2
95 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
96 95
97 case ${host} in 96 case ${host} in
98 alpha*) echo alpha;; 97 alpha*) echo alpha;;
99 x86_64*) ninj x86_64 amd64;;
100 arm*) echo arm;; 98 arm*) echo arm;;
101 thumb*) echo arm;; 99 cris*) echo cris;;
102 hppa*) ninj parisc hppa;; 100 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;; 102 ia64*) echo ia64;;
104 m68*) echo m68k;; 103 m68*) echo m68k;;
105 mips*) echo mips;; 104 mips*) echo mips;;
106 powerpc64*) echo ppc64;; 105 powerpc64*) echo ppc64;;
107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 106 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
108 && ninj ppc64 ppc \ 107 && ninj ppc64 ppc \
109 || echo ppc 108 || echo ppc
110 ;; 109 ;;
110 s390*) echo s390;;
111 sh64*) ninj sh64 sh;;
112 sh*) echo sh;;
111 sparc64*) ninj sparc64 sparc;; 113 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 114 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 115 && ninj sparc64 sparc \
114 || echo sparc 116 || echo sparc
115 ;; 117 ;;
116 s390*) echo s390;; 118 vax*) echo vax;;
117 sh64*) ninj sh64 sh;; 119 x86_64*) ninj x86_64 amd64;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 120 *) echo ${ARCH};;
121 esac 121 esac
122} 122}
123tc-arch-kernel() { 123tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 124 tc-ninja_magic_to_arch kern $@
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*} 132 host=${host%%-*}
133 133
134 case ${host} in 134 case ${host} in
135 alpha*) echo big;; 135 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;; 136 arm*b*) echo big;;
138 arm*) echo little;; 137 arm*) echo little;;
139 thumb*) echo little;; 138 cris*) echo little;;
140 hppa*) echo big;; 139 hppa*) echo big;;
140 i?86*) echo little;;
141 ia64*) echo little;; 141 ia64*) echo little;;
142 m68*) echo big;; 142 m68*) echo big;;
143 mips*l*) echo little;; 143 mips*l*) echo little;;
144 mips*) echo big;; 144 mips*) echo big;;
145 powerpc*) echo big;; 145 powerpc*) echo big;;
146 sparc*) echo big;;
147 s390*) echo big;; 146 s390*) echo big;;
148 sh*b*) echo big;; 147 sh*b*) echo big;;
149 sh*) echo little;; 148 sh*) echo little;;
149 sparc*) echo big;;
150 i?86*) echo little;; 150 x86_64*) echo little;;
151 *) echo wtf;; 151 *) echo wtf;;
152 esac 152 esac
153} 153}
154 154
155# Returns the version as by `$CC -dumpversion` 155# Returns the version as by `$CC -dumpversion`
172gcc-micro-version() { 172gcc-micro-version() {
173 echo "$(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}

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