/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2004 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 1.17 2004/12/30 21:27:27 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.44 2005/09/16 01:44:42 vapier Exp $
4# 4#
5# Author: Toolchain Ninjas <ninjas@gentoo.org> 5# Author: Toolchain Ninjas <ninjas@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=toolchain-funcs
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
21 if [[ -n ${!var} ]] ; then 18 if [[ -n ${!var} ]] ; then
22 echo "${!var}" 19 echo "${!var}"
23 return 0 20 return 0
24 fi 21 fi
25 22
26 if [[ -n ${CHOST} ]] ; then 23 local search=
27 local search=$(type -p "${CHOST}-${prog}") 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
28 prog=${search##*/} 25 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
29 fi 26 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
27 [[ -n ${search} ]] && prog=${search##*/}
30 28
31 export ${var}=${prog} 29 export ${var}=${prog}
32 echo "${!var}" 30 echo "${!var}"
33} 31}
34 32
35# Returns the name of the archiver 33# Returns the name of the archiver
36tc-getAR() { tc-getPROG AR ar; } 34tc-getAR() { tc-getPROG AR ar "$@"; }
37# Returns the name of the assembler 35# Returns the name of the assembler
38tc-getAS() { tc-getPROG AS as; } 36tc-getAS() { tc-getPROG AS as "$@"; }
39# Returns the name of the C compiler 37# Returns the name of the C compiler
40tc-getCC() { tc-getPROG CC gcc; } 38tc-getCC() { tc-getPROG CC gcc "$@"; }
41# Returns the name of the C++ compiler 39# Returns the name of the C++ compiler
42tc-getCXX() { tc-getPROG CXX g++; } 40tc-getCXX() { tc-getPROG CXX g++ "$@"; }
43# Returns the name of the linker 41# Returns the name of the linker
44tc-getLD() { tc-getPROG LD ld; } 42tc-getLD() { tc-getPROG LD ld "$@"; }
45# Returns the name of the symbol/object thingy 43# Returns the name of the symbol/object thingy
46tc-getNM() { tc-getPROG NM nm; } 44tc-getNM() { tc-getPROG NM nm "$@"; }
47# Returns the name of the archiver indexer 45# Returns the name of the archiver indexer
48tc-getRANLIB() { tc-getPROG RANLIB ranlib; } 46tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
49# Returns the name of the fortran compiler 47# Returns the name of the fortran compiler
50tc-getF77() { tc-getPROG F77 f77; } 48tc-getF77() { tc-getPROG F77 f77 "$@"; }
51# Returns the name of the java compiler 49# Returns the name of the java compiler
52tc-getGCJ() { tc-getPROG GCJ gcj; } 50tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
53 51
54# Returns the name of the C compiler for build 52# Returns the name of the C compiler for build
55tc-getBUILD_CC() { 53tc-getBUILD_CC() {
54 local v
55 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
56 if [[ -n ${CC_FOR_BUILD} ]] ; then 56 if [[ -n ${!v} ]] ; then
57 export BUILD_CC=${CC_FOR_BUILD} 57 export BUILD_CC=${!v}
58 echo "${CC_FOR_BUILD}" 58 echo "${!v}"
59 return 0 59 return 0
60 fi 60 fi
61 done
61 62
62 local search= 63 local search=
63 if [[ -n ${CBUILD} ]] ; then 64 if [[ -n ${CBUILD} ]] ; then
64 search=$(type -p "${CBUILD}-gcc") 65 search=$(type -p ${CBUILD}-gcc)
65 search=${search##*/} 66 search=${search##*/}
66 else 67 else
67 search=gcc 68 search=gcc
68 fi 69 fi
69 70
73 74
74# Quick way to export a bunch of vars at once 75# Quick way to export a bunch of vars at once
75tc-export() { 76tc-export() {
76 local var 77 local var
77 for var in "$@" ; do 78 for var in "$@" ; do
78 eval tc-get${var} 79 eval tc-get${var} > /dev/null
79 done 80 done
80} 81}
81 82
82# A simple way to see if we're using a cross-compiler ... 83# A simple way to see if we're using a cross-compiler ...
83tc-is-cross-compiler() { 84tc-is-cross-compiler() {
84 if [[ -n ${CBUILD} ]] ; then
85 return $([[ ${CBUILD} != ${CHOST} ]]) 85 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
86 fi
87 return 1
88} 86}
89 87
88
89# Parse information from CBUILD/CHOST/CTARGET rather than
90# use external variables from the profile.
91tc-ninja_magic_to_arch() {
92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
93
94 local type=$1
95 local host=$2
96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
97
98 case ${host} in
99 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;;
102 thumb*) echo arm;;
103 hppa*) ninj parisc hppa;;
104 ia64*) echo ia64;;
105 m68*) echo m68k;;
106 mips*) echo mips;;
107 powerpc64*) echo ppc64;;
108 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
109 && ninj ppc64 ppc \
110 || echo ppc
111 ;;
112 sparc64*) ninj sparc64 sparc;;
113 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
114 && ninj sparc64 sparc \
115 || echo sparc
116 ;;
117 s390*) echo s390;;
118 sh64*) ninj sh64 sh;;
119 sh*) echo sh;;
120 i?86*) ninj i386 x86;;
121 *) echo ${ARCH};;
122 esac
123}
124tc-arch-kernel() {
125 tc-ninja_magic_to_arch kern $@
126}
127tc-arch() {
128 tc-ninja_magic_to_arch portage $@
129}
130tc-endian() {
131 local host=$1
132 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
133 host=${host%%-*}
134
135 case ${host} in
136 alpha*) echo big;;
137 x86_64*) echo little;;
138 arm*b*) echo big;;
139 arm*) echo little;;
140 thumb*) echo little;;
141 hppa*) echo big;;
142 ia64*) echo little;;
143 m68*) echo big;;
144 mips*l*) echo little;;
145 mips*) echo big;;
146 powerpc*) echo big;;
147 sparc*) echo big;;
148 s390*) echo big;;
149 sh*b*) echo big;;
150 sh*) echo little;;
151 i?86*) echo little;;
152 *) echo wtf;;
153 esac
154}
90 155
91# Returns the version as by `$CC -dumpversion` 156# Returns the version as by `$CC -dumpversion`
92gcc-fullversion() { 157gcc-fullversion() {
93 echo "$($(tc-getCC) -dumpversion)" 158 echo "$($(tc-getCC) -dumpversion)"
94} 159}
104gcc-minor-version() { 169gcc-minor-version() {
105 echo "$(gcc-version | cut -f2 -d.)" 170 echo "$(gcc-version | cut -f2 -d.)"
106} 171}
107# Returns the Micro version 172# Returns the Micro version
108gcc-micro-version() { 173gcc-micro-version() {
109 echo "$(gcc-fullversion | cut -f3 -d.)" 174 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
110} 175}
176
177# Returns requested gcc specs directive
178# Note; if a spec exists more than once (e.g. in more than one specs file)
179# the last one read is the active definition - i.e. they do not accumulate,
180# each new definition replaces any previous definition.
181gcc-specs-directive() {
182 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}')
183 [[ -z ${specfiles} ]] && return 0
184 awk -v spec=$1 \
185'BEGIN { sstr=""; outside=1 }
186 $1=="*"spec":" { sstr=""; outside=0; next }
187 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
188 { sstr=sstr $0 }
189END { print sstr }' ${specfiles}
190}
191
192# Returns true if gcc sets relro
193gcc-specs-relro() {
194 local directive
195 directive=$(gcc-specs-directive link_command)
196 return $([[ ${directive/\{!norelro:} != ${directive} ]])
197}
198# Returns true if gcc sets now
199gcc-specs-now() {
200 local directive
201 directive=$(gcc-specs-directive link_command)
202 return $([[ ${directive/\{!nonow:} != ${directive} ]])
203}
204# Returns true if gcc builds PIEs
205gcc-specs-pie() {
206 local directive
207 directive=$(gcc-specs-directive cc1)
208 return $([[ ${directive/\{!nopie:} != ${directive} ]])
209}
210# Returns true if gcc builds with the stack protector
211gcc-specs-ssp() {
212 local directive
213 directive=$(gcc-specs-directive cc1)
214 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
215}

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