/[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 1.51 2006/01/09 04:35:14 dostrow 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 cris*) echo cris;;
100 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
102 ia64*) echo ia64;;
103 m68*) echo m68k;;
104 mips*) echo mips;;
105 powerpc*)
106 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
107 # have been unified into simply 'powerpc'
108 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
109 echo powerpc
110 elif [[ ${host} == powerpc64* ]] ; then
111 echo ppc64
112 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
113 ninj ppc64 ppc
114 else
115 echo ppc
116 fi
117 ;;
118 s390*) echo s390;;
119 sh64*) ninj sh64 sh;;
120 sh*) echo sh;;
121 sparc64*) ninj sparc64 sparc;;
122 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
123 && ninj sparc64 sparc \
124 || echo sparc
125 ;;
126 vax*) echo vax;;
127 x86_64*) ninj x86_64 amd64;;
128 *) echo ${ARCH};;
129 esac
130}
131tc-arch-kernel() {
132 tc-ninja_magic_to_arch kern $@
133}
134tc-arch() {
135 tc-ninja_magic_to_arch portage $@
136}
137tc-endian() {
138 local host=$1
139 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
140 host=${host%%-*}
141
142 case ${host} in
143 alpha*) echo big;;
144 arm*b*) echo big;;
145 arm*) echo little;;
146 cris*) echo little;;
147 hppa*) echo big;;
148 i?86*) echo little;;
149 ia64*) echo little;;
150 m68*) echo big;;
151 mips*l*) echo little;;
152 mips*) echo big;;
153 powerpc*) echo big;;
154 s390*) echo big;;
155 sh*b*) echo big;;
156 sh*) echo little;;
157 sparc*) echo big;;
158 x86_64*) echo little;;
159 *) echo wtf;;
160 esac
161}
59 162
60# Returns the version as by `$CC -dumpversion` 163# Returns the version as by `$CC -dumpversion`
61gcc-fullversion() { 164gcc-fullversion() {
62 echo "$($(tc-getCC) -dumpversion)" 165 echo "$($(tc-getCC) -dumpversion)"
63} 166}
64# Returns the version, but only the <major>.<minor> 167# Returns the version, but only the <major>.<minor>
65gcc-version() { 168gcc-version() {
66 echo "$(cc-fullversion | cut -f1,2 -d.)" 169 echo "$(gcc-fullversion | cut -f1,2 -d.)"
67} 170}
68# Returns the Major version 171# Returns the Major version
69gcc-major-version() { 172gcc-major-version() {
70 echo "$(cc-version | cut -f1 -d.)" 173 echo "$(gcc-version | cut -f1 -d.)"
71} 174}
72# Returns the Minor version 175# Returns the Minor version
73gcc-minor-version() { 176gcc-minor-version() {
74 echo "$(cc-version | cut -f2 -d.)" 177 echo "$(gcc-version | cut -f2 -d.)"
75} 178}
76# Returns the Micro version 179# Returns the Micro version
77gcc-micro-version() { 180gcc-micro-version() {
78 echo "$(cc-fullversion | cut -f3 -d.)" 181 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
79} 182}
183
184# Returns requested gcc specs directive
185# Note; later specs normally overwrite earlier ones; however if a later
186# spec starts with '+' then it appends.
187# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
188# as "Reading <file>", in order.
189gcc-specs-directive() {
190 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
191 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
192'BEGIN { pspec=""; spec=""; outside=1 }
193$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
194 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
195 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
196 { spec=spec $0 }
197END { print spec }'
198 return 0
199}
200
201# Returns true if gcc sets relro
202gcc-specs-relro() {
203 local directive
204 directive=$(gcc-specs-directive link_command)
205 return $([[ ${directive/\{!norelro:} != ${directive} ]])
206}
207# Returns true if gcc sets now
208gcc-specs-now() {
209 local directive
210 directive=$(gcc-specs-directive link_command)
211 return $([[ ${directive/\{!nonow:} != ${directive} ]])
212}
213# Returns true if gcc builds PIEs
214gcc-specs-pie() {
215 local directive
216 directive=$(gcc-specs-directive cc1)
217 return $([[ ${directive/\{!nopie:} != ${directive} ]])
218}
219# Returns true if gcc builds with the stack protector
220gcc-specs-ssp() {
221 local directive
222 directive=$(gcc-specs-directive cc1)
223 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
224}
225# Returns true if gcc upgrades fstack-protector to fstack-protector-all
226gcc-specs-ssp-to-all() {
227 local directive
228 directive=$(gcc-specs-directive cc1)
229 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
230}

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