/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.1.1.1 Revision 1.20
1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2004 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 1.1.1.1 2005/11/30 09:59:25 chriswhite Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.20 2005/01/11 01:07:49 vapier Exp $
4# 4#
5# Author: Toolchain Ninjas <toolchain@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 eutils
11
12ECLASS=toolchain-funcs
13INHERITED="$INHERITED $ECLASS"
11 14
12DESCRIPTION="Based on the ${ECLASS} eclass" 15DESCRIPTION="Based on the ${ECLASS} eclass"
13 16
14tc-getPROG() { 17tc-getPROG() {
15 local var=$1 18 local var=$1
18 if [[ -n ${!var} ]] ; then 21 if [[ -n ${!var} ]] ; then
19 echo "${!var}" 22 echo "${!var}"
20 return 0 23 return 0
21 fi 24 fi
22 25
23 local search= 26 if [[ -n ${CHOST} ]] ; then
24 [[ -n $3 ]] && search=$(type -p "$3-${prog}") 27 local search=$(type -p "${CHOST}-${prog}")
25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 28 [[ -n ${search} ]] && prog=${search##*/}
29 fi
27 30
28 export ${var}=${prog} 31 export ${var}=${prog}
29 echo "${!var}" 32 echo "${!var}"
30} 33}
31 34
32# Returns the name of the archiver 35# Returns the name of the archiver
33tc-getAR() { tc-getPROG AR ar "$@"; } 36tc-getAR() { tc-getPROG AR ar; }
34# Returns the name of the assembler 37# Returns the name of the assembler
35tc-getAS() { tc-getPROG AS as "$@"; } 38tc-getAS() { tc-getPROG AS as; }
36# Returns the name of the C compiler 39# Returns the name of the C compiler
37tc-getCC() { tc-getPROG CC gcc "$@"; } 40tc-getCC() { tc-getPROG CC gcc; }
38# Returns the name of the C++ compiler 41# Returns the name of the C++ compiler
39tc-getCXX() { tc-getPROG CXX g++ "$@"; } 42tc-getCXX() { tc-getPROG CXX g++; }
40# Returns the name of the linker 43# Returns the name of the linker
41tc-getLD() { tc-getPROG LD ld "$@"; } 44tc-getLD() { tc-getPROG LD ld; }
42# Returns the name of the symbol/object thingy 45# Returns the name of the symbol/object thingy
43tc-getNM() { tc-getPROG NM nm "$@"; } 46tc-getNM() { tc-getPROG NM nm; }
44# Returns the name of the archiver indexer 47# Returns the name of the archiver indexer
45tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 48tc-getRANLIB() { tc-getPROG RANLIB ranlib; }
46# Returns the name of the fortran compiler 49# Returns the name of the fortran compiler
47tc-getF77() { tc-getPROG F77 f77 "$@"; } 50tc-getF77() { tc-getPROG F77 f77; }
48# Returns the name of the java compiler 51# Returns the name of the java compiler
49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 52tc-getGCJ() { tc-getPROG GCJ gcj; }
50 53
51# Returns the name of the C compiler for build 54# Returns the name of the C compiler for build
52tc-getBUILD_CC() { 55tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
55 if [[ -n ${!v} ]] ; then 56 if [[ -n ${CC_FOR_BUILD} ]] ; then
56 export BUILD_CC=${!v} 57 export BUILD_CC=${CC_FOR_BUILD}
57 echo "${!v}" 58 echo "${CC_FOR_BUILD}"
58 return 0 59 return 0
59 fi 60 fi
60 done
61 61
62 local search= 62 local search=
63 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
64 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p "${CBUILD}-gcc")
65 search=${search##*/} 65 search=${search##*/}
66 else
67 search=gcc
66 fi 68 fi
67 search=${search:-gcc}
68 69
69 export BUILD_CC=${search} 70 export BUILD_CC=${search}
70 echo "${search}" 71 echo "${search}"
71} 72}
72 73
73# Quick way to export a bunch of vars at once 74# Quick way to export a bunch of vars at once
74tc-export() { 75tc-export() {
75 local var 76 local var
76 for var in "$@" ; do 77 for var in "$@" ; do
77 eval tc-get${var} > /dev/null 78 eval tc-get${var}
78 done 79 done
79} 80}
80 81
81# 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 ...
82tc-is-cross-compiler() { 83tc-is-cross-compiler() {
84 if [[ -n ${CBUILD} ]] ; then
83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 85 return $([[ ${CBUILD} != ${CHOST} ]])
86 fi
87 return 1
84} 88}
85 89
86 90
87# Parse information from CBUILD/CHOST/CTARGET rather than 91# Parse information from CBUILD/CHOST/CTARGET rather than
88# use external variables from the profile. 92# use external variables from the profile.
89tc-ninja_magic_to_arch() { 93tc-ninja_magic_to_arch() {
90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 94ninj() { [[ ${type} = "kern" ]] && echo $1 || echo $2 ; }
91 95
92 local type=$1 96 local type=$1
93 local host=$2 97 local host=$2
94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 98 [[ -z ${host} ]] && arg=${CHOST}
95 99
96 case ${host} in 100 case ${host} in
97 alpha*) echo alpha;; 101 alpha*) echo alpha;;
102 x86_64*) ninj x86_64 amd64;;
98 arm*) echo arm;; 103 arm*) echo arm;;
99 cris*) echo cris;;
100 hppa*) ninj parisc hppa;; 104 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
102 ia64*) echo ia64;; 105 ia64*) echo ia64;;
103 m68*) echo m68k;;
104 mips*) echo mips;; 106 mips*) echo mips;;
105 powerpc64*) echo ppc64;; 107 powerpc64*) echo ppc64;;
106 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 108 powerpc*) echo ppc;;
107 && ninj ppc64 ppc \ 109 sparc64*) ninj sparc64 sparc;;
108 || echo ppc 110 sparc*) echo sparc;;
109 ;;
110 s390*) echo s390;; 111 s390*) echo s390;;
111 sh64*) ninj sh64 sh;; 112 sh64*) ninj sh64 sh;;
112 sh*) echo sh;; 113 sh*) echo sh;;
113 sparc64*) ninj sparc64 sparc;; 114 i?86*) echo x86;;
114 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 115 *) echo wtf;;
115 && ninj sparc64 sparc \
116 || echo sparc
117 ;;
118 vax*) echo vax;;
119 x86_64*) ninj x86_64 amd64;;
120 *) echo ${ARCH};;
121 esac 116 esac
122} 117}
123tc-arch-kernel() { 118tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 119 tc-ninja_magic_to_arch kern $@
125} 120}
126tc-arch() { 121tc-arch() {
127 tc-ninja_magic_to_arch portage $@ 122 tc-ninja_magic_to_arch portage $@
128} 123}
129tc-endian() { 124tc-endian() {
130 local host=$1 125 local host=$1
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 126 [[ -z ${host} ]] && host=${CHOST}
132 host=${host%%-*}
133 127
134 case ${host} in 128 case ${host} in
135 alpha*) echo big;; 129 alpha*) echo big;;
130 x86_64*) echo little;;
136 arm*b*) echo big;; 131 arm*eb-*) echo big;;
137 arm*) echo little;; 132 arm*) echo little;;
138 cris*) echo little;;
139 hppa*) echo big;; 133 hppa*) echo big;;
140 i?86*) echo little;;
141 ia64*) echo little;; 134 ia64*) echo little;;
142 m68*) echo big;; 135 m68k*) echo big;;
143 mips*l*) echo little;; 136 mips*el-*) echo little;;
144 mips*) echo big;; 137 mips*) echo big;;
145 powerpc*) echo big;; 138 powerpc*) echo big;;
139 sparc*) echo big;;
146 s390*) echo big;; 140 s390*) echo big;;
141 sh*el-) echo little;;
147 sh*b*) echo big;; 142 sh*) echo big;;
148 sh*) echo little;; 143 i?86*) echo little;;
149 sparc*) echo big;;
150 x86_64*) echo little;;
151 *) echo wtf;; 144 *) echo wtf;;
152 esac 145 esac
153} 146}
154 147
155# Returns the version as by `$CC -dumpversion` 148# Returns the version as by `$CC -dumpversion`
168gcc-minor-version() { 161gcc-minor-version() {
169 echo "$(gcc-version | cut -f2 -d.)" 162 echo "$(gcc-version | cut -f2 -d.)"
170} 163}
171# Returns the Micro version 164# Returns the Micro version
172gcc-micro-version() { 165gcc-micro-version() {
173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 166 echo "$(gcc-fullversion | cut -f3 -d.)"
174} 167}
175
176# Returns requested gcc specs directive
177# Note; later specs normally overwrite earlier ones; however if a later
178# spec starts with '+' then it appends.
179# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
180# as "Reading <file>", in order.
181gcc-specs-directive() {
182 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
183 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
184'BEGIN { pspec=""; spec=""; outside=1 }
185$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
186 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
187 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
188 { spec=spec $0 }
189END { print spec }'
190 return 0
191}
192
193# Returns true if gcc sets relro
194gcc-specs-relro() {
195 local directive
196 directive=$(gcc-specs-directive link_command)
197 return $([[ ${directive/\{!norelro:} != ${directive} ]])
198}
199# Returns true if gcc sets now
200gcc-specs-now() {
201 local directive
202 directive=$(gcc-specs-directive link_command)
203 return $([[ ${directive/\{!nonow:} != ${directive} ]])
204}
205# Returns true if gcc builds PIEs
206gcc-specs-pie() {
207 local directive
208 directive=$(gcc-specs-directive cc1)
209 return $([[ ${directive/\{!nopie:} != ${directive} ]])
210}
211# Returns true if gcc builds with the stack protector
212gcc-specs-ssp() {
213 local directive
214 directive=$(gcc-specs-directive cc1)
215 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
216}
217# Returns true if gcc upgrades fstack-protector to fstack-protector-all
218gcc-specs-ssp-to-all() {
219 local directive
220 directive=$(gcc-specs-directive cc1)
221 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
222}

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