/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2006 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 1.56 2006/02/17 22:18:20 swegener 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 bfin*) ninj blackfin bfin;;
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 nios2*) echo nios2;;
107 nios*) echo nios;;
108 powerpc*)
109 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
110 # have been unified into simply 'powerpc', but until 2.6.16,
111 # ppc32 is still using ARCH="ppc" as default
112 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
113 echo powerpc
114 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
115 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
116 echo powerpc
117 else
118 echo ppc
119 fi
120 elif [[ ${host} == powerpc64* ]] ; then
121 echo ppc64
107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 122 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
108 && ninj ppc64 ppc \ 123 ninj ppc64 ppc
124 else
109 || echo ppc 125 echo ppc
126 fi
110 ;; 127 ;;
128 s390*) echo s390;;
129 sh64*) ninj sh64 sh;;
130 sh*) echo sh;;
111 sparc64*) ninj sparc64 sparc;; 131 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 132 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 133 && ninj sparc64 sparc \
114 || echo sparc 134 || echo sparc
115 ;; 135 ;;
116 s390*) echo s390;; 136 vax*) echo vax;;
117 sh64*) ninj sh64 sh;; 137 x86_64*) ninj x86_64 amd64;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 138 *) echo ${ARCH};;
121 esac 139 esac
122} 140}
123tc-arch-kernel() { 141tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 142 tc-ninja_magic_to_arch kern $@
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 149 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*} 150 host=${host%%-*}
133 151
134 case ${host} in 152 case ${host} in
135 alpha*) echo big;; 153 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;; 154 arm*b*) echo big;;
138 arm*) echo little;; 155 arm*) echo little;;
156 cris*) echo little;;
139 hppa*) echo big;; 157 hppa*) echo big;;
158 i?86*) echo little;;
140 ia64*) echo little;; 159 ia64*) echo little;;
141 m68*) echo big;; 160 m68*) echo big;;
142 mips*l*) echo little;; 161 mips*l*) echo little;;
143 mips*) echo big;; 162 mips*) echo big;;
144 powerpc*) echo big;; 163 powerpc*) echo big;;
145 sparc*) echo big;;
146 s390*) echo big;; 164 s390*) echo big;;
147 sh*b*) echo big;; 165 sh*b*) echo big;;
148 sh*) echo little;; 166 sh*) echo little;;
167 sparc*) echo big;;
149 i?86*) echo little;; 168 x86_64*) echo little;;
150 *) echo wtf;; 169 *) echo wtf;;
151 esac 170 esac
152} 171}
153 172
154# Returns the version as by `$CC -dumpversion` 173# Returns the version as by `$CC -dumpversion`
171gcc-micro-version() { 190gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 191 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173} 192}
174 193
175# Returns requested gcc specs directive 194# Returns requested gcc specs directive
176# Note; if a spec exists more than once (e.g. in more than one specs file) 195# Note; later specs normally overwrite earlier ones; however if a later
177# the last one read is the active definition - i.e. they do not accumulate, 196# spec starts with '+' then it appends.
178# each new definition replaces any previous definition. 197# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
198# as "Reading <file>", in order.
179gcc-specs-directive() { 199gcc-specs-directive() {
180 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}') 200 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
181 [[ -z ${specfiles} ]] && return 0 201 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
182 awk -v spec=$1 \
183'BEGIN { sstr=""; outside=1 } 202'BEGIN { pspec=""; spec=""; outside=1 }
184 $1=="*"spec":" { sstr=""; outside=0; next } 203$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
185 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } 204 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
186 { sstr=sstr $0 } 205 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
187END { print sstr }' ${specfiles} 206 { spec=spec $0 }
207END { print spec }'
208 return 0
188} 209}
189 210
190# Returns true if gcc sets relro 211# Returns true if gcc sets relro
191gcc-specs-relro() { 212gcc-specs-relro() {
192 local directive 213 local directive
209gcc-specs-ssp() { 230gcc-specs-ssp() {
210 local directive 231 local directive
211 directive=$(gcc-specs-directive cc1) 232 directive=$(gcc-specs-directive cc1)
212 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 233 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
213} 234}
235# Returns true if gcc upgrades fstack-protector to fstack-protector-all
236gcc-specs-ssp-to-all() {
237 local directive
238 directive=$(gcc-specs-directive cc1)
239 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
240}

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