/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2004 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 1.1 2004/10/13 14:14:07 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.57 2006/03/28 21:25:14 kevquinn 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 eutils 10inherit multilib
11
12ECLASS=toolfuncs
13INHERITED="$INHERITED $ECLASS"
14 11
15DESCRIPTION="Based on the ${ECLASS} eclass" 12DESCRIPTION="Based on the ${ECLASS} eclass"
16 13
17tc-getPROG() { 14tc-getPROG() {
18 local var="$1" 15 local var=$1
19 local prog="$2" 16 local prog=$2
20 local search=""
21 17
22 if [ -n "${!var}" ] ; then 18 if [[ -n ${!var} ]] ; then
23 echo "${!var}" 19 echo "${!var}"
24 return 0 20 return 0
25 fi 21 fi
26 22
27 # how should we handle the host/target/build ? 23 local search=
24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/}
27
28 export ${var}=${prog}
29 echo "${!var}"
30}
31
32# Returns the name of the archiver
33tc-getAR() { tc-getPROG AR ar "$@"; }
34# Returns the name of the assembler
35tc-getAS() { tc-getPROG AS as "$@"; }
36# Returns the name of the C compiler
37tc-getCC() { tc-getPROG CC gcc "$@"; }
38# Returns the name of the C++ compiler
39tc-getCXX() { tc-getPROG CXX g++ "$@"; }
40# Returns the name of the linker
41tc-getLD() { tc-getPROG LD ld "$@"; }
42# Returns the name of the symbol/object thingy
43tc-getNM() { tc-getPROG NM nm "$@"; }
44# Returns the name of the archiver indexer
45tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
46# Returns the name of the fortran compiler
47tc-getF77() { tc-getPROG F77 f77 "$@"; }
48# Returns the name of the java compiler
49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
50
51# Returns the name of the C compiler for build
52tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
28 if [ -n "${CHOST}" ] ; then 55 if [[ -n ${!v} ]] ; then
29 search="$(type -p "${CHOST}-${prog}")" 56 export BUILD_CC=${!v}
30 else 57 echo "${!v}"
31 if [ -n "${CTARGET}" ] ; then 58 return 0
32 search="$(type -p "${CTARGET}-${prog}")"
33 fi 59 fi
60 done
61
62 local search=
63 if [[ -n ${CBUILD} ]] ; then
64 search=$(type -p ${CBUILD}-gcc)
65 search=${search##*/}
34 fi 66 fi
67 search=${search:-gcc}
35 68
36 if [ -z "${search}" ] ; then 69 export BUILD_CC=${search}
37 prog="${search##*/}"
38 fi
39 export ${var}="${prog}"
40 echo "${!var}" 70 echo "${search}"
41} 71}
42 72
43# Returns the name of the archiver 73# Quick way to export a bunch of vars at once
44tc-getAR() { tc-getPROG AR ar; } 74tc-export() {
45# Returns the name of the assembler 75 local var
46tc-getAS() { tc-getPROG AS as; } 76 for var in "$@" ; do
47# Returns the name of the C compiler 77 eval tc-get${var} > /dev/null
48tc-getCC() { tc-getPROG CC gcc; } 78 done
49# Returns the name of the C++ compiler 79}
50tc-getCXX() { tc-getPROG CXX g++; }
51# Returns the name of the linker
52tc-getLD() { tc-getPROG LD ld; }
53# Returns the name of the symbol/object thingy
54tc-getNM() { tc-getPROG NM nm; }
55# Returns the name of the archiver indexer
56tc-getRANLIB() { tc-getPROG RANLIB ranlib; }
57 80
81# A simple way to see if we're using a cross-compiler ...
82tc-is-cross-compiler() {
83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
84}
58 85
86
87# Parse information from CBUILD/CHOST/CTARGET rather than
88# use external variables from the profile.
89tc-ninja_magic_to_arch() {
90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
91
92 local type=$1
93 local host=$2
94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
95
96 case ${host} in
97 alpha*) echo alpha;;
98 arm*) echo arm;;
99 bfin*) ninj blackfin bfin;;
100 cris*) echo cris;;
101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;;
104 m68*) echo m68k;;
105 mips*) echo mips;;
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
122 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
123 ninj ppc64 ppc
124 else
125 echo ppc
126 fi
127 ;;
128 s390*) echo s390;;
129 sh64*) ninj sh64 sh;;
130 sh*) echo sh;;
131 sparc64*) ninj sparc64 sparc;;
132 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
133 && ninj sparc64 sparc \
134 || echo sparc
135 ;;
136 vax*) echo vax;;
137 x86_64*) ninj x86_64 amd64;;
138 *) echo ${ARCH};;
139 esac
140}
141tc-arch-kernel() {
142 tc-ninja_magic_to_arch kern $@
143}
144tc-arch() {
145 tc-ninja_magic_to_arch portage $@
146}
147tc-endian() {
148 local host=$1
149 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
150 host=${host%%-*}
151
152 case ${host} in
153 alpha*) echo big;;
154 arm*b*) echo big;;
155 arm*) echo little;;
156 cris*) echo little;;
157 hppa*) echo big;;
158 i?86*) echo little;;
159 ia64*) echo little;;
160 m68*) echo big;;
161 mips*l*) echo little;;
162 mips*) echo big;;
163 powerpc*) echo big;;
164 s390*) echo big;;
165 sh*b*) echo big;;
166 sh*) echo little;;
167 sparc*) echo big;;
168 x86_64*) echo little;;
169 *) echo wtf;;
170 esac
171}
59 172
60# Returns the version as by `$CC -dumpversion` 173# Returns the version as by `$CC -dumpversion`
61gcc-fullversion() { 174gcc-fullversion() {
62 echo "$($(tc-getCC) -dumpversion)" 175 echo "$($(tc-getCC) -dumpversion)"
63} 176}
64# Returns the version, but only the <major>.<minor> 177# Returns the version, but only the <major>.<minor>
65gcc-version() { 178gcc-version() {
66 echo "$(cc-fullversion | cut -f1,2 -d.)" 179 echo "$(gcc-fullversion | cut -f1,2 -d.)"
67} 180}
68# Returns the Major version 181# Returns the Major version
69gcc-major-version() { 182gcc-major-version() {
70 echo "$(cc-version | cut -f1 -d.)" 183 echo "$(gcc-version | cut -f1 -d.)"
71} 184}
72# Returns the Minor version 185# Returns the Minor version
73gcc-minor-version() { 186gcc-minor-version() {
74 echo "$(cc-version | cut -f2 -d.)" 187 echo "$(gcc-version | cut -f2 -d.)"
75} 188}
76# Returns the Micro version 189# Returns the Micro version
77gcc-micro-version() { 190gcc-micro-version() {
78 echo "$(cc-fullversion | cut -f3 -d.)" 191 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
79} 192}
193
194# Returns requested gcc specs directive
195# Note; later specs normally overwrite earlier ones; however if a later
196# spec starts with '+' then it appends.
197# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
198# as "Reading <file>", in order.
199gcc-specs-directive() {
200 local cc=$(tc-getCC)
201 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
202 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
203'BEGIN { pspec=""; spec=""; outside=1 }
204$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
205 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
206 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
207 { spec=spec $0 }
208END { print spec }'
209 return 0
210}
211
212# Returns true if gcc sets relro
213gcc-specs-relro() {
214 local directive
215 directive=$(gcc-specs-directive link_command)
216 return $([[ ${directive/\{!norelro:} != ${directive} ]])
217}
218# Returns true if gcc sets now
219gcc-specs-now() {
220 local directive
221 directive=$(gcc-specs-directive link_command)
222 return $([[ ${directive/\{!nonow:} != ${directive} ]])
223}
224# Returns true if gcc builds PIEs
225gcc-specs-pie() {
226 local directive
227 directive=$(gcc-specs-directive cc1)
228 return $([[ ${directive/\{!nopie:} != ${directive} ]])
229}
230# Returns true if gcc builds with the stack protector
231gcc-specs-ssp() {
232 local directive
233 directive=$(gcc-specs-directive cc1)
234 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
235}
236# Returns true if gcc upgrades fstack-protector to fstack-protector-all
237gcc-specs-ssp-to-all() {
238 local directive
239 directive=$(gcc-specs-directive cc1)
240 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
241}

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