/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.34 Revision 1.52
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 1.34 2005/03/10 22:43:11 eradicator Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.52 2006/01/15 20:21:59 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
10inherit multilib 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 local chost=$3 23 local search=
27 [[ -z ${chost} ]] && chost=$(get_abi_CHOST) 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
28 [[ -z ${chost} ]] && chost=${CHOST} 25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
29
30 if [[ -n ${chost} ]] ; then
31 local search=$(type -p "${chost}-${prog}")
32 [[ -n ${search} ]] && prog=${search##*/} 26 [[ -n ${search} ]] && prog=${search##*/}
33 fi
34 27
35 export ${var}=${prog} 28 export ${var}=${prog}
36 echo "${!var}" 29 echo "${!var}"
37} 30}
38 31
55# Returns the name of the java compiler 48# Returns the name of the java compiler
56tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
57 50
58# Returns the name of the C compiler for build 51# Returns the name of the C compiler for build
59tc-getBUILD_CC() { 52tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
60 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${!v} ]] ; then
61 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${!v}
62 echo "${CC_FOR_BUILD}" 57 echo "${!v}"
63 return 0 58 return 0
64 fi 59 fi
60 done
65 61
66 local search= 62 local search=
67 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
68 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p ${CBUILD}-gcc)
69 search=${search##*/} 65 search=${search##*/}
70 else
71 search=gcc
72 fi 66 fi
67 search=${search:-gcc}
73 68
74 export BUILD_CC=${search} 69 export BUILD_CC=${search}
75 echo "${search}" 70 echo "${search}"
76} 71}
77 72
78# Quick way to export a bunch of vars at once 73# Quick way to export a bunch of vars at once
79tc-export() { 74tc-export() {
80 local var 75 local var
81 for var in "$@" ; do 76 for var in "$@" ; do
82 eval tc-get${var} 77 eval tc-get${var} > /dev/null
83 done 78 done
84} 79}
85 80
86# 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 ...
87tc-is-cross-compiler() { 82tc-is-cross-compiler() {
88 if [[ -n ${CBUILD} ]] ; then
89 return $([[ ${CBUILD} != ${CHOST} ]]) 83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
90 fi
91 return 1
92} 84}
93 85
94 86
95# Parse information from CBUILD/CHOST/CTARGET rather than 87# Parse information from CBUILD/CHOST/CTARGET rather than
96# use external variables from the profile. 88# use external variables from the profile.
97tc-ninja_magic_to_arch() { 89tc-ninja_magic_to_arch() {
98ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
99 91
100 local type=$1 92 local type=$1
101 local host=$2 93 local host=$2
102 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
103 95
104 case ${host} in 96 case ${host} in
105 alpha*) echo alpha;; 97 alpha*) echo alpha;;
106 x86_64*) ninj x86_64 amd64;;
107 arm*) echo arm;; 98 arm*) echo arm;;
99 bfin*) ninj bfin blackfin;;
100 cris*) echo cris;;
108 hppa*) ninj parisc hppa;; 101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
109 ia64*) echo ia64;; 103 ia64*) echo ia64;;
110 m68*) echo m68k;; 104 m68*) echo m68k;;
111 mips*) echo mips;; 105 mips*) echo mips;;
112 powerpc64*) echo ppc64;; 106 nios2*) echo nios2;;
113 powerpc*) echo ppc;; 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'
111 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
112 echo powerpc
113 elif [[ ${host} == powerpc64* ]] ; then
114 echo ppc64
115 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
116 ninj ppc64 ppc
117 else
118 echo ppc
119 fi
120 ;;
121 s390*) echo s390;;
122 sh64*) ninj sh64 sh;;
123 sh*) echo sh;;
114 sparc64*) ninj sparc64 sparc;; 124 sparc64*) ninj sparc64 sparc;;
115 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 125 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
116 && ninj sparc64 sparc \ 126 && ninj sparc64 sparc \
117 || echo sparc 127 || echo sparc
118 ;; 128 ;;
119 s390*) echo s390;; 129 vax*) echo vax;;
120 sh64*) ninj sh64 sh;; 130 x86_64*) ninj x86_64 amd64;;
121 sh*) echo sh;;
122 i?86*) ninj i386 x86;;
123 *) echo ${ARCH};; 131 *) echo ${ARCH};;
124 esac 132 esac
125} 133}
126tc-arch-kernel() { 134tc-arch-kernel() {
127 tc-ninja_magic_to_arch kern $@ 135 tc-ninja_magic_to_arch kern $@
134 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 142 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
135 host=${host%%-*} 143 host=${host%%-*}
136 144
137 case ${host} in 145 case ${host} in
138 alpha*) echo big;; 146 alpha*) echo big;;
139 x86_64*) echo little;;
140 arm*b*) echo big;; 147 arm*b*) echo big;;
141 arm*) echo little;; 148 arm*) echo little;;
149 cris*) echo little;;
142 hppa*) echo big;; 150 hppa*) echo big;;
151 i?86*) echo little;;
143 ia64*) echo little;; 152 ia64*) echo little;;
144 m68*) echo big;; 153 m68*) echo big;;
145 mips*l*) echo little;; 154 mips*l*) echo little;;
146 mips*) echo big;; 155 mips*) echo big;;
147 powerpc*) echo big;; 156 powerpc*) echo big;;
148 sparc*) echo big;;
149 s390*) echo big;; 157 s390*) echo big;;
150 sh*b*) echo big;; 158 sh*b*) echo big;;
151 sh*) echo little;; 159 sh*) echo little;;
160 sparc*) echo big;;
152 i?86*) echo little;; 161 x86_64*) echo little;;
153 *) echo wtf;; 162 *) echo wtf;;
154 esac 163 esac
155} 164}
156 165
157# Returns the version as by `$CC -dumpversion` 166# Returns the version as by `$CC -dumpversion`
172} 181}
173# Returns the Micro version 182# Returns the Micro version
174gcc-micro-version() { 183gcc-micro-version() {
175 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 184 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
176} 185}
186
187# Returns requested gcc specs directive
188# Note; later specs normally overwrite earlier ones; however if a later
189# spec starts with '+' then it appends.
190# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
191# as "Reading <file>", in order.
192gcc-specs-directive() {
193 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
194 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
195'BEGIN { pspec=""; spec=""; outside=1 }
196$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
197 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
198 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
199 { spec=spec $0 }
200END { print spec }'
201 return 0
202}
203
204# Returns true if gcc sets relro
205gcc-specs-relro() {
206 local directive
207 directive=$(gcc-specs-directive link_command)
208 return $([[ ${directive/\{!norelro:} != ${directive} ]])
209}
210# Returns true if gcc sets now
211gcc-specs-now() {
212 local directive
213 directive=$(gcc-specs-directive link_command)
214 return $([[ ${directive/\{!nonow:} != ${directive} ]])
215}
216# Returns true if gcc builds PIEs
217gcc-specs-pie() {
218 local directive
219 directive=$(gcc-specs-directive cc1)
220 return $([[ ${directive/\{!nopie:} != ${directive} ]])
221}
222# Returns true if gcc builds with the stack protector
223gcc-specs-ssp() {
224 local directive
225 directive=$(gcc-specs-directive cc1)
226 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
227}
228# Returns true if gcc upgrades fstack-protector to fstack-protector-all
229gcc-specs-ssp-to-all() {
230 local directive
231 directive=$(gcc-specs-directive cc1)
232 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
233}

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