/[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 1.42 2005/08/02 13:26:59 azarah 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
11
12 11
13DESCRIPTION="Based on the ${ECLASS} eclass" 12DESCRIPTION="Based on the ${ECLASS} eclass"
14 13
15tc-getPROG() { 14tc-getPROG() {
16 local var=$1 15 local var=$1
21 return 0 20 return 0
22 fi 21 fi
23 22
24 local search= 23 local search=
25 [[ -n $3 ]] && search=$(type -p "$3-${prog}") 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
26 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
27 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}") 25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
28 [[ -n ${search} ]] && prog=${search##*/} 26 [[ -n ${search} ]] && prog=${search##*/}
29 27
30 export ${var}=${prog} 28 export ${var}=${prog}
31 echo "${!var}" 29 echo "${!var}"
50# Returns the name of the java compiler 48# Returns the name of the java compiler
51tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
52 50
53# Returns the name of the C compiler for build 51# Returns the name of the C compiler for build
54tc-getBUILD_CC() { 52tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
55 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${!v} ]] ; then
56 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${!v}
57 echo "${CC_FOR_BUILD}" 57 echo "${!v}"
58 return 0 58 return 0
59 fi 59 fi
60 done
60 61
61 local search= 62 local search=
62 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
63 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p ${CBUILD}-gcc)
64 search=${search##*/} 65 search=${search##*/}
65 else
66 search=gcc
67 fi 66 fi
67 search=${search:-gcc}
68 68
69 export BUILD_CC=${search} 69 export BUILD_CC=${search}
70 echo "${search}" 70 echo "${search}"
71} 71}
72 72
78 done 78 done
79} 79}
80 80
81# A simple way to see if we're using a cross-compiler ... 81# A simple way to see if we're using a cross-compiler ...
82tc-is-cross-compiler() { 82tc-is-cross-compiler() {
83 if [[ -n ${CBUILD} ]] ; then
84 return $([[ ${CBUILD} != ${CHOST} ]]) 83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
85 fi
86 return 1
87} 84}
88 85
89 86
90# Parse information from CBUILD/CHOST/CTARGET rather than 87# Parse information from CBUILD/CHOST/CTARGET rather than
91# use external variables from the profile. 88# use external variables from the profile.
96 local host=$2 93 local host=$2
97 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
98 95
99 case ${host} in 96 case ${host} in
100 alpha*) echo alpha;; 97 alpha*) echo alpha;;
101 x86_64*) ninj x86_64 amd64;;
102 arm*) echo arm;; 98 arm*) echo arm;;
99 cris*) echo cris;;
103 hppa*) ninj parisc hppa;; 100 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
104 ia64*) echo ia64;; 102 ia64*) echo ia64;;
105 m68*) echo m68k;; 103 m68*) echo m68k;;
106 mips*) echo mips;; 104 mips*) echo mips;;
107 powerpc64*) echo ppc64;; 105 powerpc64*) echo ppc64;;
108 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 106 powerpc*)
109 && 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
110 || echo ppc 114 echo ppc
115 fi
111 ;; 116 ;;
117 s390*) echo s390;;
118 sh64*) ninj sh64 sh;;
119 sh*) echo sh;;
112 sparc64*) ninj sparc64 sparc;; 120 sparc64*) ninj sparc64 sparc;;
113 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 121 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
114 && ninj sparc64 sparc \ 122 && ninj sparc64 sparc \
115 || echo sparc 123 || echo sparc
116 ;; 124 ;;
117 s390*) echo s390;; 125 vax*) echo vax;;
118 sh64*) ninj sh64 sh;; 126 x86_64*) ninj x86_64 amd64;;
119 sh*) echo sh;;
120 i?86*) ninj i386 x86;;
121 *) echo ${ARCH};; 127 *) echo ${ARCH};;
122 esac 128 esac
123} 129}
124tc-arch-kernel() { 130tc-arch-kernel() {
125 tc-ninja_magic_to_arch kern $@ 131 tc-ninja_magic_to_arch kern $@
132 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 138 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
133 host=${host%%-*} 139 host=${host%%-*}
134 140
135 case ${host} in 141 case ${host} in
136 alpha*) echo big;; 142 alpha*) echo big;;
137 x86_64*) echo little;;
138 arm*b*) echo big;; 143 arm*b*) echo big;;
139 arm*) echo little;; 144 arm*) echo little;;
145 cris*) echo little;;
140 hppa*) echo big;; 146 hppa*) echo big;;
147 i?86*) echo little;;
141 ia64*) echo little;; 148 ia64*) echo little;;
142 m68*) echo big;; 149 m68*) echo big;;
143 mips*l*) echo little;; 150 mips*l*) echo little;;
144 mips*) echo big;; 151 mips*) echo big;;
145 powerpc*) echo big;; 152 powerpc*) echo big;;
146 sparc*) echo big;;
147 s390*) echo big;; 153 s390*) echo big;;
148 sh*b*) echo big;; 154 sh*b*) echo big;;
149 sh*) echo little;; 155 sh*) echo little;;
156 sparc*) echo big;;
150 i?86*) echo little;; 157 x86_64*) echo little;;
151 *) echo wtf;; 158 *) echo wtf;;
152 esac 159 esac
153} 160}
154 161
155# Returns the version as by `$CC -dumpversion` 162# Returns the version as by `$CC -dumpversion`
172gcc-micro-version() { 179gcc-micro-version() {
173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 180 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
174} 181}
175 182
176# Returns requested gcc specs directive 183# Returns requested gcc specs directive
177# Note; if a spec exists more than once (e.g. in more than one specs file) 184# Note; later specs normally overwrite earlier ones; however if a later
178# the last one read is the active definition - i.e. they do not accumulate, 185# spec starts with '+' then it appends.
179# each new definition replaces any previous definition. 186# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
187# as "Reading <file>", in order.
180gcc-specs-directive() { 188gcc-specs-directive() {
181 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}') 189 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
182 [[ -z ${specfiles} ]] && return 0 190 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
183 awk -v spec=$1 \
184'BEGIN { sstr=""; outside=1 } 191'BEGIN { pspec=""; spec=""; outside=1 }
185 $1=="*"spec":" { sstr=""; outside=0; next } 192$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
186 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 }
187 { sstr=sstr $0 } 194 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
188END { print sstr }' ${specfiles} 195 { spec=spec $0 }
196END { print spec }'
197 return 0
189} 198}
190 199
191# Returns true if gcc sets relro 200# Returns true if gcc sets relro
192gcc-specs-relro() { 201gcc-specs-relro() {
193 local directive 202 local directive
210gcc-specs-ssp() { 219gcc-specs-ssp() {
211 local directive 220 local directive
212 directive=$(gcc-specs-directive cc1) 221 directive=$(gcc-specs-directive cc1)
213 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 222 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
214} 223}
215 224# Returns true if gcc upgrades fstack-protector to fstack-protector-all
225gcc-specs-ssp-to-all() {
226 local directive
227 directive=$(gcc-specs-directive cc1)
228 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
229}

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