/[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 1.45 2005/10/06 01:52:51 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.58 2006/04/02 10:10:59 robbat2 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}"
34tc-getAR() { tc-getPROG AR ar "$@"; } 33tc-getAR() { tc-getPROG AR ar "$@"; }
35# Returns the name of the assembler 34# Returns the name of the assembler
36tc-getAS() { tc-getPROG AS as "$@"; } 35tc-getAS() { tc-getPROG AS as "$@"; }
37# Returns the name of the C compiler 36# Returns the name of the C compiler
38tc-getCC() { tc-getPROG CC gcc "$@"; } 37tc-getCC() { tc-getPROG CC gcc "$@"; }
38# Returns the name of the C preprocessor
39tc-getCPP() { tc-getPROG CPP cpp "$@"; }
39# Returns the name of the C++ compiler 40# Returns the name of the C++ compiler
40tc-getCXX() { tc-getPROG CXX g++ "$@"; } 41tc-getCXX() { tc-getPROG CXX g++ "$@"; }
41# Returns the name of the linker 42# Returns the name of the linker
42tc-getLD() { tc-getPROG LD ld "$@"; } 43tc-getLD() { tc-getPROG LD ld "$@"; }
43# Returns the name of the symbol/object thingy 44# Returns the name of the symbol/object thingy
94 local host=$2 95 local host=$2
95 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
96 97
97 case ${host} in 98 case ${host} in
98 alpha*) echo alpha;; 99 alpha*) echo alpha;;
99 x86_64*) ninj x86_64 amd64;;
100 arm*) echo arm;; 100 arm*) echo arm;;
101 thumb*) echo arm;; 101 bfin*) ninj blackfin bfin;;
102 cris*) echo cris;;
102 hppa*) ninj parisc hppa;; 103 hppa*) ninj parisc hppa;;
104 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;; 105 ia64*) echo ia64;;
104 m68*) echo m68k;; 106 m68*) echo m68k;;
105 mips*) echo mips;; 107 mips*) echo mips;;
106 powerpc64*) echo ppc64;; 108 nios2*) echo nios2;;
109 nios*) echo nios;;
110 powerpc*)
111 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
112 # have been unified into simply 'powerpc', but until 2.6.16,
113 # ppc32 is still using ARCH="ppc" as default
114 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
115 echo powerpc
116 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
117 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
118 echo powerpc
119 else
120 echo ppc
121 fi
122 elif [[ ${host} == powerpc64* ]] ; then
123 echo ppc64
107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 124 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
108 && ninj ppc64 ppc \ 125 ninj ppc64 ppc
126 else
109 || echo ppc 127 echo ppc
128 fi
110 ;; 129 ;;
130 s390*) echo s390;;
131 sh64*) ninj sh64 sh;;
132 sh*) echo sh;;
111 sparc64*) ninj sparc64 sparc;; 133 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 134 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 135 && ninj sparc64 sparc \
114 || echo sparc 136 || echo sparc
115 ;; 137 ;;
116 s390*) echo s390;; 138 vax*) echo vax;;
117 sh64*) ninj sh64 sh;; 139 x86_64*) ninj x86_64 amd64;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 140 *) echo ${ARCH};;
121 esac 141 esac
122} 142}
123tc-arch-kernel() { 143tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 144 tc-ninja_magic_to_arch kern $@
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 151 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*} 152 host=${host%%-*}
133 153
134 case ${host} in 154 case ${host} in
135 alpha*) echo big;; 155 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;; 156 arm*b*) echo big;;
138 arm*) echo little;; 157 arm*) echo little;;
139 thumb*) echo little;; 158 cris*) echo little;;
140 hppa*) echo big;; 159 hppa*) echo big;;
160 i?86*) echo little;;
141 ia64*) echo little;; 161 ia64*) echo little;;
142 m68*) echo big;; 162 m68*) echo big;;
143 mips*l*) echo little;; 163 mips*l*) echo little;;
144 mips*) echo big;; 164 mips*) echo big;;
145 powerpc*) echo big;; 165 powerpc*) echo big;;
146 sparc*) echo big;;
147 s390*) echo big;; 166 s390*) echo big;;
148 sh*b*) echo big;; 167 sh*b*) echo big;;
149 sh*) echo little;; 168 sh*) echo little;;
169 sparc*) echo big;;
150 i?86*) echo little;; 170 x86_64*) echo little;;
151 *) echo wtf;; 171 *) echo wtf;;
152 esac 172 esac
153} 173}
154 174
155# Returns the version as by `$CC -dumpversion` 175# Returns the version as by `$CC -dumpversion`
172gcc-micro-version() { 192gcc-micro-version() {
173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 193 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
174} 194}
175 195
176# Returns requested gcc specs directive 196# Returns requested gcc specs directive
177# Note; if a spec exists more than once (e.g. in more than one specs file) 197# Note; later specs normally overwrite earlier ones; however if a later
178# the last one read is the active definition - i.e. they do not accumulate, 198# spec starts with '+' then it appends.
179# each new definition replaces any previous definition. 199# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
200# as "Reading <file>", in order.
180gcc-specs-directive() { 201gcc-specs-directive() {
181 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}') 202 local cc=$(tc-getCC)
182 [[ -z ${specfiles} ]] && return 0 203 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
183 awk -v spec=$1 \ 204 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
184'BEGIN { sstr=""; outside=1 } 205'BEGIN { pspec=""; spec=""; outside=1 }
185 $1=="*"spec":" { sstr=""; outside=0; next } 206$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
186 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } 207 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
187 { sstr=sstr $0 } 208 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
188END { print sstr }' ${specfiles} 209 { spec=spec $0 }
210END { print spec }'
211 return 0
189} 212}
190 213
191# Returns true if gcc sets relro 214# Returns true if gcc sets relro
192gcc-specs-relro() { 215gcc-specs-relro() {
193 local directive 216 local directive
210gcc-specs-ssp() { 233gcc-specs-ssp() {
211 local directive 234 local directive
212 directive=$(gcc-specs-directive cc1) 235 directive=$(gcc-specs-directive cc1)
213 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 236 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
214} 237}
238# Returns true if gcc upgrades fstack-protector to fstack-protector-all
239gcc-specs-ssp-to-all() {
240 local directive
241 directive=$(gcc-specs-directive cc1)
242 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
243}

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