/[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 1.33 2005/03/04 13:46:55 vapier 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
10ECLASS=toolchain-funcs 10inherit multilib
11INHERITED="$INHERITED $ECLASS"
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
19 if [[ -n ${!var} ]] ; then 18 if [[ -n ${!var} ]] ; then
20 echo "${!var}" 19 echo "${!var}"
21 return 0 20 return 0
22 fi 21 fi
23 22
24 if [[ -n $3 ]] ; then 23 local search=
25 local search=$(type -p "$3-${prog}") 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 26 [[ -n ${search} ]] && prog=${search##*/}
27 elif [[ -n ${CHOST} ]] ; then
28 local search=$(type -p "${CHOST}-${prog}")
29 [[ -n ${search} ]] && prog=${search##*/}
30 fi
31 27
32 export ${var}=${prog} 28 export ${var}=${prog}
33 echo "${!var}" 29 echo "${!var}"
34} 30}
35 31
52# Returns the name of the java compiler 48# Returns the name of the java compiler
53tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
54 50
55# Returns the name of the C compiler for build 51# Returns the name of the C compiler for build
56tc-getBUILD_CC() { 52tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
57 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${!v} ]] ; then
58 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${!v}
59 echo "${CC_FOR_BUILD}" 57 echo "${!v}"
60 return 0 58 return 0
61 fi 59 fi
60 done
62 61
63 local search= 62 local search=
64 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
65 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p ${CBUILD}-gcc)
66 search=${search##*/} 65 search=${search##*/}
67 else
68 search=gcc
69 fi 66 fi
67 search=${search:-gcc}
70 68
71 export BUILD_CC=${search} 69 export BUILD_CC=${search}
72 echo "${search}" 70 echo "${search}"
73} 71}
74 72
75# Quick way to export a bunch of vars at once 73# Quick way to export a bunch of vars at once
76tc-export() { 74tc-export() {
77 local var 75 local var
78 for var in "$@" ; do 76 for var in "$@" ; do
79 eval tc-get${var} 77 eval tc-get${var} > /dev/null
80 done 78 done
81} 79}
82 80
83# 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 ...
84tc-is-cross-compiler() { 82tc-is-cross-compiler() {
85 if [[ -n ${CBUILD} ]] ; then
86 return $([[ ${CBUILD} != ${CHOST} ]]) 83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
87 fi
88 return 1
89} 84}
90 85
91 86
92# Parse information from CBUILD/CHOST/CTARGET rather than 87# Parse information from CBUILD/CHOST/CTARGET rather than
93# use external variables from the profile. 88# use external variables from the profile.
94tc-ninja_magic_to_arch() { 89tc-ninja_magic_to_arch() {
95ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
96 91
97 local type=$1 92 local type=$1
98 local host=$2 93 local host=$2
99 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
100 95
101 case ${host} in 96 case ${host} in
102 alpha*) echo alpha;; 97 alpha*) echo alpha;;
103 x86_64*) ninj x86_64 amd64;;
104 arm*) echo arm;; 98 arm*) echo arm;;
99 cris*) echo cris;;
105 hppa*) ninj parisc hppa;; 100 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
106 ia64*) echo ia64;; 102 ia64*) echo ia64;;
107 m68*) echo m68k;; 103 m68*) echo m68k;;
108 mips*) echo mips;; 104 mips*) echo mips;;
109 powerpc64*) echo ppc64;; 105 powerpc64*) echo ppc64;;
110 powerpc*) echo ppc;; 106 powerpc*)
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
114 echo ppc
115 fi
116 ;;
117 s390*) echo s390;;
118 sh64*) ninj sh64 sh;;
119 sh*) echo sh;;
111 sparc64*) ninj sparc64 sparc;; 120 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 121 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 122 && ninj sparc64 sparc \
114 || echo sparc 123 || echo sparc
115 ;; 124 ;;
116 s390*) echo s390;; 125 vax*) echo vax;;
117 sh64*) ninj sh64 sh;; 126 x86_64*) ninj x86_64 amd64;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 127 *) echo ${ARCH};;
121 esac 128 esac
122} 129}
123tc-arch-kernel() { 130tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 131 tc-ninja_magic_to_arch kern $@
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 138 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*} 139 host=${host%%-*}
133 140
134 case ${host} in 141 case ${host} in
135 alpha*) echo big;; 142 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;; 143 arm*b*) echo big;;
138 arm*) echo little;; 144 arm*) echo little;;
145 cris*) echo little;;
139 hppa*) echo big;; 146 hppa*) echo big;;
147 i?86*) echo little;;
140 ia64*) echo little;; 148 ia64*) echo little;;
141 m68*) echo big;; 149 m68*) echo big;;
142 mips*l*) echo little;; 150 mips*l*) echo little;;
143 mips*) echo big;; 151 mips*) echo big;;
144 powerpc*) echo big;; 152 powerpc*) echo big;;
145 sparc*) echo big;;
146 s390*) echo big;; 153 s390*) echo big;;
147 sh*b*) echo big;; 154 sh*b*) echo big;;
148 sh*) echo little;; 155 sh*) echo little;;
156 sparc*) echo big;;
149 i?86*) echo little;; 157 x86_64*) echo little;;
150 *) echo wtf;; 158 *) echo wtf;;
151 esac 159 esac
152} 160}
153 161
154# Returns the version as by `$CC -dumpversion` 162# Returns the version as by `$CC -dumpversion`
169} 177}
170# Returns the Micro version 178# Returns the Micro version
171gcc-micro-version() { 179gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 180 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173} 181}
182
183# Returns requested gcc specs directive
184# Note; later specs normally overwrite earlier ones; however if a later
185# spec starts with '+' then it appends.
186# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
187# as "Reading <file>", in order.
188gcc-specs-directive() {
189 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
190 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
191'BEGIN { pspec=""; spec=""; outside=1 }
192$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
193 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
194 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
195 { spec=spec $0 }
196END { print spec }'
197 return 0
198}
199
200# Returns true if gcc sets relro
201gcc-specs-relro() {
202 local directive
203 directive=$(gcc-specs-directive link_command)
204 return $([[ ${directive/\{!norelro:} != ${directive} ]])
205}
206# Returns true if gcc sets now
207gcc-specs-now() {
208 local directive
209 directive=$(gcc-specs-directive link_command)
210 return $([[ ${directive/\{!nonow:} != ${directive} ]])
211}
212# Returns true if gcc builds PIEs
213gcc-specs-pie() {
214 local directive
215 directive=$(gcc-specs-directive cc1)
216 return $([[ ${directive/\{!nopie:} != ${directive} ]])
217}
218# Returns true if gcc builds with the stack protector
219gcc-specs-ssp() {
220 local directive
221 directive=$(gcc-specs-directive cc1)
222 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
223}
224# Returns true if gcc upgrades fstack-protector to fstack-protector-all
225gcc-specs-ssp-to-all() {
226 local directive
227 directive=$(gcc-specs-directive cc1)
228 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
229}

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