/[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 1.49 2006/01/04 04:59:54 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
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}"
62 61
63 local search= 62 local search=
64 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
65 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p ${CBUILD}-gcc)
66 search=${search##*/} 65 search=${search##*/}
67 else
68 search=gcc
69 fi 66 fi
67 search=${search:-gcc}
70 68
71 export BUILD_CC=${search} 69 export BUILD_CC=${search}
72 echo "${search}" 70 echo "${search}"
73} 71}
74 72
95 local host=$2 93 local host=$2
96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
97 95
98 case ${host} in 96 case ${host} in
99 alpha*) echo alpha;; 97 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;; 98 arm*) 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*)
108 && ninj ppc64 ppc \ 107 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
108 # have been unified into simply 'powerpc'
109 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.15) ]] ; then
110 echo powerpc
111 elif [[ ${host} == powerpc64* ]] ; then
112 echo ppc64
113 else
109 || echo ppc 114 echo ppc
115 fi
110 ;; 116 ;;
117 s390*) echo s390;;
118 sh64*) ninj sh64 sh;;
119 sh*) echo sh;;
111 sparc64*) ninj sparc64 sparc;; 120 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 121 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 122 && ninj sparc64 sparc \
114 || echo sparc 123 || echo sparc
115 ;; 124 ;;
116 s390*) echo s390;; 125 vax*) echo vax;;
117 sh64*) ninj sh64 sh;; 126 x86_64*) ninj x86_64 amd64;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 127 *) echo ${ARCH};;
121 esac 128 esac
122} 129}
123tc-arch-kernel() { 130tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 131 tc-ninja_magic_to_arch kern $@
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 138 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*} 139 host=${host%%-*}
133 140
134 case ${host} in 141 case ${host} in
135 alpha*) echo big;; 142 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;; 143 arm*b*) echo big;;
138 arm*) echo little;; 144 arm*) echo little;;
145 cris*) echo little;;
139 hppa*) echo big;; 146 hppa*) echo big;;
147 i?86*) echo little;;
140 ia64*) echo little;; 148 ia64*) echo little;;
141 m68*) echo big;; 149 m68*) echo big;;
142 mips*l*) echo little;; 150 mips*l*) echo little;;
143 mips*) echo big;; 151 mips*) echo big;;
144 powerpc*) echo big;; 152 powerpc*) echo big;;
145 sparc*) echo big;;
146 s390*) echo big;; 153 s390*) echo big;;
147 sh*b*) echo big;; 154 sh*b*) echo big;;
148 sh*) echo little;; 155 sh*) echo little;;
156 sparc*) echo big;;
149 i?86*) echo little;; 157 x86_64*) echo little;;
150 *) echo wtf;; 158 *) echo wtf;;
151 esac 159 esac
152} 160}
153 161
154# Returns the version as by `$CC -dumpversion` 162# Returns the version as by `$CC -dumpversion`
171gcc-micro-version() { 179gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 180 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173} 181}
174 182
175# Returns requested gcc specs directive 183# Returns requested gcc specs directive
176# Note; if a spec exists more than once (e.g. in more than one specs file) 184# Note; later specs normally overwrite earlier ones; however if a later
177# the last one read is the active definition - i.e. they do not accumulate, 185# spec starts with '+' then it appends.
178# each new definition replaces any previous definition. 186# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
187# as "Reading <file>", in order.
179gcc-specs-directive() { 188gcc-specs-directive() {
180 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}') 189 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
181 [[ -z ${specfiles} ]] && return 0 190 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
182 awk -v spec=$1 \
183'BEGIN { sstr=""; outside=1 } 191'BEGIN { pspec=""; spec=""; outside=1 }
184 $1=="*"spec":" { sstr=""; outside=0; next } 192$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
185 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } 193 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
186 { sstr=sstr $0 } 194 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
187END { print sstr }' ${specfiles} 195 { spec=spec $0 }
196END { print spec }'
197 return 0
188} 198}
189 199
190# Returns true if gcc sets relro 200# Returns true if gcc sets relro
191gcc-specs-relro() { 201gcc-specs-relro() {
192 local directive 202 local directive
209gcc-specs-ssp() { 219gcc-specs-ssp() {
210 local directive 220 local directive
211 directive=$(gcc-specs-directive cc1) 221 directive=$(gcc-specs-directive cc1)
212 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 222 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
213} 223}
224# Returns true if gcc upgrades fstack-protector to fstack-protector-all
225gcc-specs-ssp-to-all() {
226 local directive
227 directive=$(gcc-specs-directive cc1)
228 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
229}

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