/[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 1.44 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 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=${search##*/}
77 74
78# Quick way to export a bunch of vars at once 75# Quick way to export a bunch of vars at once
79tc-export() { 76tc-export() {
80 local var 77 local var
81 for var in "$@" ; do 78 for var in "$@" ; do
82 eval tc-get${var} 79 eval tc-get${var} > /dev/null
83 done 80 done
84} 81}
85 82
86# 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 ...
87tc-is-cross-compiler() { 84tc-is-cross-compiler() {
88 if [[ -n ${CBUILD} ]] ; then
89 return $([[ ${CBUILD} != ${CHOST} ]]) 85 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
90 fi
91 return 1
92} 86}
93 87
94 88
95# Parse information from CBUILD/CHOST/CTARGET rather than 89# Parse information from CBUILD/CHOST/CTARGET rather than
96# use external variables from the profile. 90# use external variables from the profile.
97tc-ninja_magic_to_arch() { 91tc-ninja_magic_to_arch() {
98ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
99 93
100 local type=$1 94 local type=$1
103 97
104 case ${host} in 98 case ${host} in
105 alpha*) echo alpha;; 99 alpha*) echo alpha;;
106 x86_64*) ninj x86_64 amd64;; 100 x86_64*) ninj x86_64 amd64;;
107 arm*) echo arm;; 101 arm*) echo arm;;
102 thumb*) echo arm;;
108 hppa*) ninj parisc hppa;; 103 hppa*) ninj parisc hppa;;
109 ia64*) echo ia64;; 104 ia64*) echo ia64;;
110 m68*) echo m68k;; 105 m68*) echo m68k;;
111 mips*) echo mips;; 106 mips*) echo mips;;
112 powerpc64*) echo ppc64;; 107 powerpc64*) echo ppc64;;
113 powerpc*) echo ppc;; 108 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
109 && ninj ppc64 ppc \
110 || echo ppc
111 ;;
114 sparc64*) ninj sparc64 sparc;; 112 sparc64*) ninj sparc64 sparc;;
115 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 113 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
116 && ninj sparc64 sparc \ 114 && ninj sparc64 sparc \
117 || echo sparc 115 || echo sparc
118 ;; 116 ;;
137 case ${host} in 135 case ${host} in
138 alpha*) echo big;; 136 alpha*) echo big;;
139 x86_64*) echo little;; 137 x86_64*) echo little;;
140 arm*b*) echo big;; 138 arm*b*) echo big;;
141 arm*) echo little;; 139 arm*) echo little;;
140 thumb*) echo little;;
142 hppa*) echo big;; 141 hppa*) echo big;;
143 ia64*) echo little;; 142 ia64*) echo little;;
144 m68*) echo big;; 143 m68*) echo big;;
145 mips*l*) echo little;; 144 mips*l*) echo little;;
146 mips*) echo big;; 145 mips*) echo big;;
172} 171}
173# Returns the Micro version 172# Returns the Micro version
174gcc-micro-version() { 173gcc-micro-version() {
175 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 174 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
176} 175}
176
177# Returns requested gcc specs directive
178# Note; if a spec exists more than once (e.g. in more than one specs file)
179# the last one read is the active definition - i.e. they do not accumulate,
180# each new definition replaces any previous definition.
181gcc-specs-directive() {
182 local specfiles=$($(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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