/[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 1.34 2005/03/10 22:43:11 eradicator Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.47 2005/10/10 21:19:43 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 $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
29 26 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
30 if [[ -n ${chost} ]] ; then
31 local search=$(type -p "${chost}-${prog}")
32 [[ -n ${search} ]] && prog=${search##*/} 27 [[ -n ${search} ]] && prog=${search##*/}
33 fi
34 28
35 export ${var}=${prog} 29 export ${var}=${prog}
36 echo "${!var}" 30 echo "${!var}"
37} 31}
38 32
55# Returns the name of the java compiler 49# Returns the name of the java compiler
56tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 50tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
57 51
58# Returns the name of the C compiler for build 52# Returns the name of the C compiler for build
59tc-getBUILD_CC() { 53tc-getBUILD_CC() {
54 local v
55 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
60 if [[ -n ${CC_FOR_BUILD} ]] ; then 56 if [[ -n ${!v} ]] ; then
61 export BUILD_CC=${CC_FOR_BUILD} 57 export BUILD_CC=${!v}
62 echo "${CC_FOR_BUILD}" 58 echo "${!v}"
63 return 0 59 return 0
64 fi 60 fi
61 done
65 62
66 local search= 63 local search=
67 if [[ -n ${CBUILD} ]] ; then 64 if [[ -n ${CBUILD} ]] ; then
68 search=$(type -p ${CBUILD}-gcc) 65 search=$(type -p ${CBUILD}-gcc)
69 search=${search##*/} 66 search=${search##*/}
70 else
71 search=gcc
72 fi 67 fi
68 search=${search:-gcc}
73 69
74 export BUILD_CC=${search} 70 export BUILD_CC=${search}
75 echo "${search}" 71 echo "${search}"
76} 72}
77 73
78# Quick way to export a bunch of vars at once 74# Quick way to export a bunch of vars at once
79tc-export() { 75tc-export() {
80 local var 76 local var
81 for var in "$@" ; do 77 for var in "$@" ; do
82 eval tc-get${var} 78 eval tc-get${var} > /dev/null
83 done 79 done
84} 80}
85 81
86# A simple way to see if we're using a cross-compiler ... 82# A simple way to see if we're using a cross-compiler ...
87tc-is-cross-compiler() { 83tc-is-cross-compiler() {
88 if [[ -n ${CBUILD} ]] ; then
89 return $([[ ${CBUILD} != ${CHOST} ]]) 84 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
90 fi
91 return 1
92} 85}
93 86
94 87
95# Parse information from CBUILD/CHOST/CTARGET rather than 88# Parse information from CBUILD/CHOST/CTARGET rather than
96# use external variables from the profile. 89# use external variables from the profile.
97tc-ninja_magic_to_arch() { 90tc-ninja_magic_to_arch() {
98ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 91ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
99 92
100 local type=$1 93 local type=$1
101 local host=$2 94 local host=$2
102 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 95 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
103 96
104 case ${host} in 97 case ${host} in
105 alpha*) echo alpha;; 98 alpha*) echo alpha;;
106 x86_64*) ninj x86_64 amd64;;
107 arm*) echo arm;; 99 arm*) echo arm;;
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 powerpc64*) echo ppc64;;
113 powerpc*) echo ppc;; 107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
108 && ninj ppc64 ppc \
109 || echo ppc
110 ;;
111 s390*) echo s390;;
112 sh64*) ninj sh64 sh;;
113 sh*) echo sh;;
114 sparc64*) ninj sparc64 sparc;; 114 sparc64*) ninj sparc64 sparc;;
115 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 115 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
116 && ninj sparc64 sparc \ 116 && ninj sparc64 sparc \
117 || echo sparc 117 || echo sparc
118 ;; 118 ;;
119 s390*) echo s390;; 119 vax*) echo vax;;
120 sh64*) ninj sh64 sh;; 120 x86_64*) ninj x86_64 amd64;;
121 sh*) echo sh;;
122 i?86*) ninj i386 x86;;
123 *) echo ${ARCH};; 121 *) echo ${ARCH};;
124 esac 122 esac
125} 123}
126tc-arch-kernel() { 124tc-arch-kernel() {
127 tc-ninja_magic_to_arch kern $@ 125 tc-ninja_magic_to_arch kern $@
134 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 132 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
135 host=${host%%-*} 133 host=${host%%-*}
136 134
137 case ${host} in 135 case ${host} in
138 alpha*) echo big;; 136 alpha*) echo big;;
139 x86_64*) echo little;;
140 arm*b*) echo big;; 137 arm*b*) echo big;;
141 arm*) echo little;; 138 arm*) echo little;;
139 cris*) echo little;;
142 hppa*) echo big;; 140 hppa*) echo big;;
141 i?86*) echo little;;
143 ia64*) echo little;; 142 ia64*) echo little;;
144 m68*) echo big;; 143 m68*) echo big;;
145 mips*l*) echo little;; 144 mips*l*) echo little;;
146 mips*) echo big;; 145 mips*) echo big;;
147 powerpc*) echo big;; 146 powerpc*) echo big;;
148 sparc*) echo big;;
149 s390*) echo big;; 147 s390*) echo big;;
150 sh*b*) echo big;; 148 sh*b*) echo big;;
151 sh*) echo little;; 149 sh*) echo little;;
150 sparc*) echo big;;
152 i?86*) echo little;; 151 x86_64*) echo little;;
153 *) echo wtf;; 152 *) echo wtf;;
154 esac 153 esac
155} 154}
156 155
157# Returns the version as by `$CC -dumpversion` 156# Returns the version as by `$CC -dumpversion`
172} 171}
173# Returns the Micro version 172# Returns the Micro version
174gcc-micro-version() { 173gcc-micro-version() {
175 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 174 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
176} 175}
176
177# Returns requested gcc specs directive
178# Note; later specs normally overwrite earlier ones; however if a later
179# spec starts with '+' then it appends.
180# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
181# as "Reading <file>", in order.
182gcc-specs-directive() {
183 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
184 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
185'BEGIN { pspec=""; spec=""; outside=1 }
186$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
187 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
188 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
189 { spec=spec $0 }
190END { print spec }'
191 return 0
192}
193
194# Returns true if gcc sets relro
195gcc-specs-relro() {
196 local directive
197 directive=$(gcc-specs-directive link_command)
198 return $([[ ${directive/\{!norelro:} != ${directive} ]])
199}
200# Returns true if gcc sets now
201gcc-specs-now() {
202 local directive
203 directive=$(gcc-specs-directive link_command)
204 return $([[ ${directive/\{!nonow:} != ${directive} ]])
205}
206# Returns true if gcc builds PIEs
207gcc-specs-pie() {
208 local directive
209 directive=$(gcc-specs-directive cc1)
210 return $([[ ${directive/\{!nopie:} != ${directive} ]])
211}
212# Returns true if gcc builds with the stack protector
213gcc-specs-ssp() {
214 local directive
215 directive=$(gcc-specs-directive cc1)
216 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
217}
218# Returns true if gcc upgrades fstack-protector to fstack-protector-all
219gcc-specs-ssp-to-all() {
220 local directive
221 directive=$(gcc-specs-directive cc1)
222 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
223}

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