/[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 1.38 2005/07/06 20:20:04 agriffis Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.54 2006/01/24 20:12:53 josejx 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
12INHERITED="$INHERITED $ECLASS"
13 11
14DESCRIPTION="Based on the ${ECLASS} eclass" 12DESCRIPTION="Based on the ${ECLASS} eclass"
15 13
16tc-getPROG() { 14tc-getPROG() {
17 local var=$1 15 local var=$1
22 return 0 20 return 0
23 fi 21 fi
24 22
25 local search= 23 local search=
26 [[ -n $3 ]] && search=$(type -p "$3-${prog}") 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
27 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
28 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}") 25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
29 [[ -n ${search} ]] && prog=${search##*/} 26 [[ -n ${search} ]] && prog=${search##*/}
30 27
31 export ${var}=${prog} 28 export ${var}=${prog}
32 echo "${!var}" 29 echo "${!var}"
51# Returns the name of the java compiler 48# Returns the name of the java compiler
52tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
53 50
54# Returns the name of the C compiler for build 51# Returns the name of the C compiler for build
55tc-getBUILD_CC() { 52tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
56 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${!v} ]] ; then
57 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${!v}
58 echo "${CC_FOR_BUILD}" 57 echo "${!v}"
59 return 0 58 return 0
60 fi 59 fi
60 done
61 61
62 local search= 62 local search=
63 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
64 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p ${CBUILD}-gcc)
65 search=${search##*/} 65 search=${search##*/}
66 else
67 search=gcc
68 fi 66 fi
67 search=${search:-gcc}
69 68
70 export BUILD_CC=${search} 69 export BUILD_CC=${search}
71 echo "${search}" 70 echo "${search}"
72} 71}
73 72
79 done 78 done
80} 79}
81 80
82# 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 ...
83tc-is-cross-compiler() { 82tc-is-cross-compiler() {
84 if [[ -n ${CBUILD} ]] ; then
85 return $([[ ${CBUILD} != ${CHOST} ]]) 83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
86 fi
87 return 1
88} 84}
89 85
90 86
91# Parse information from CBUILD/CHOST/CTARGET rather than 87# Parse information from CBUILD/CHOST/CTARGET rather than
92# use external variables from the profile. 88# use external variables from the profile.
93tc-ninja_magic_to_arch() { 89tc-ninja_magic_to_arch() {
94ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
95 91
96 local type=$1 92 local type=$1
97 local host=$2 93 local host=$2
98 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
99 95
100 case ${host} in 96 case ${host} in
101 alpha*) echo alpha;; 97 alpha*) echo alpha;;
102 x86_64*) ninj x86_64 amd64;;
103 arm*) echo arm;; 98 arm*) echo arm;;
99 bfin*) ninj blackfin bfin;;
100 cris*) echo cris;;
104 hppa*) ninj parisc hppa;; 101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
105 ia64*) echo ia64;; 103 ia64*) echo ia64;;
106 m68*) echo m68k;; 104 m68*) echo m68k;;
107 mips*) echo mips;; 105 mips*) echo mips;;
108 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 [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
116 echo powerpc
117 else
118 echo ppc
119 fi
120 elif [[ ${host} == powerpc64* ]] ; then
121 echo ppc64
109 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 122 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
110 && ninj ppc64 ppc \ 123 ninj ppc64 ppc
124 else
111 || echo ppc 125 echo ppc
126 fi
112 ;; 127 ;;
128 s390*) echo s390;;
129 sh64*) ninj sh64 sh;;
130 sh*) echo sh;;
113 sparc64*) ninj sparc64 sparc;; 131 sparc64*) ninj sparc64 sparc;;
114 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 132 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
115 && ninj sparc64 sparc \ 133 && ninj sparc64 sparc \
116 || echo sparc 134 || echo sparc
117 ;; 135 ;;
118 s390*) echo s390;; 136 vax*) echo vax;;
119 sh64*) ninj sh64 sh;; 137 x86_64*) ninj x86_64 amd64;;
120 sh*) echo sh;;
121 i?86*) ninj i386 x86;;
122 *) echo ${ARCH};; 138 *) echo ${ARCH};;
123 esac 139 esac
124} 140}
125tc-arch-kernel() { 141tc-arch-kernel() {
126 tc-ninja_magic_to_arch kern $@ 142 tc-ninja_magic_to_arch kern $@
133 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 149 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
134 host=${host%%-*} 150 host=${host%%-*}
135 151
136 case ${host} in 152 case ${host} in
137 alpha*) echo big;; 153 alpha*) echo big;;
138 x86_64*) echo little;;
139 arm*b*) echo big;; 154 arm*b*) echo big;;
140 arm*) echo little;; 155 arm*) echo little;;
156 cris*) echo little;;
141 hppa*) echo big;; 157 hppa*) echo big;;
158 i?86*) echo little;;
142 ia64*) echo little;; 159 ia64*) echo little;;
143 m68*) echo big;; 160 m68*) echo big;;
144 mips*l*) echo little;; 161 mips*l*) echo little;;
145 mips*) echo big;; 162 mips*) echo big;;
146 powerpc*) echo big;; 163 powerpc*) echo big;;
147 sparc*) echo big;;
148 s390*) echo big;; 164 s390*) echo big;;
149 sh*b*) echo big;; 165 sh*b*) echo big;;
150 sh*) echo little;; 166 sh*) echo little;;
167 sparc*) echo big;;
151 i?86*) echo little;; 168 x86_64*) echo little;;
152 *) echo wtf;; 169 *) echo wtf;;
153 esac 170 esac
154} 171}
155 172
156# Returns the version as by `$CC -dumpversion` 173# Returns the version as by `$CC -dumpversion`
171} 188}
172# Returns the Micro version 189# Returns the Micro version
173gcc-micro-version() { 190gcc-micro-version() {
174 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 191 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
175} 192}
193
194# Returns requested gcc specs directive
195# Note; later specs normally overwrite earlier ones; however if a later
196# spec starts with '+' then it appends.
197# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
198# as "Reading <file>", in order.
199gcc-specs-directive() {
200 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
201 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
202'BEGIN { pspec=""; spec=""; outside=1 }
203$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
204 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
205 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
206 { spec=spec $0 }
207END { print spec }'
208 return 0
209}
210
211# Returns true if gcc sets relro
212gcc-specs-relro() {
213 local directive
214 directive=$(gcc-specs-directive link_command)
215 return $([[ ${directive/\{!norelro:} != ${directive} ]])
216}
217# Returns true if gcc sets now
218gcc-specs-now() {
219 local directive
220 directive=$(gcc-specs-directive link_command)
221 return $([[ ${directive/\{!nonow:} != ${directive} ]])
222}
223# Returns true if gcc builds PIEs
224gcc-specs-pie() {
225 local directive
226 directive=$(gcc-specs-directive cc1)
227 return $([[ ${directive/\{!nopie:} != ${directive} ]])
228}
229# Returns true if gcc builds with the stack protector
230gcc-specs-ssp() {
231 local directive
232 directive=$(gcc-specs-directive cc1)
233 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
234}
235# Returns true if gcc upgrades fstack-protector to fstack-protector-all
236gcc-specs-ssp-to-all() {
237 local directive
238 directive=$(gcc-specs-directive cc1)
239 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
240}

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