/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.43 - (show annotations) (download)
Thu Sep 15 00:13:10 2005 UTC (9 years, 1 month ago) by vapier
Branch: MAIN
Changes since 1.42: +10 -12 lines
handle CBUILD better since it is forced in portage now and check for CC_FOR_BUILD BUILD_CC HOSTCC as the build cc

1 # Copyright 1999-2005 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.42 2005/08/02 13:26:59 azarah Exp $
4 #
5 # Author: Toolchain Ninjas <ninjas@gentoo.org>
6 #
7 # This eclass contains (or should) functions to get common info
8 # about the toolchain (libc/compiler/binutils/etc...)
9
10 inherit multilib
11
12 DESCRIPTION="Based on the ${ECLASS} eclass"
13
14 tc-getPROG() {
15 local var=$1
16 local prog=$2
17
18 if [[ -n ${!var} ]] ; then
19 echo "${!var}"
20 return 0
21 fi
22
23 local search=
24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
25 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
26 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
27 [[ -n ${search} ]] && prog=${search##*/}
28
29 export ${var}=${prog}
30 echo "${!var}"
31 }
32
33 # Returns the name of the archiver
34 tc-getAR() { tc-getPROG AR ar "$@"; }
35 # Returns the name of the assembler
36 tc-getAS() { tc-getPROG AS as "$@"; }
37 # Returns the name of the C compiler
38 tc-getCC() { tc-getPROG CC gcc "$@"; }
39 # Returns the name of the C++ compiler
40 tc-getCXX() { tc-getPROG CXX g++ "$@"; }
41 # Returns the name of the linker
42 tc-getLD() { tc-getPROG LD ld "$@"; }
43 # Returns the name of the symbol/object thingy
44 tc-getNM() { tc-getPROG NM nm "$@"; }
45 # Returns the name of the archiver indexer
46 tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
47 # Returns the name of the fortran compiler
48 tc-getF77() { tc-getPROG F77 f77 "$@"; }
49 # Returns the name of the java compiler
50 tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
51
52 # Returns the name of the C compiler for build
53 tc-getBUILD_CC() {
54 local v
55 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
56 if [[ -n ${!v} ]] ; then
57 export BUILD_CC=${!v}
58 echo "${!v}"
59 return 0
60 fi
61 done
62
63 local search=
64 if [[ -n ${CBUILD} ]] ; then
65 search=$(type -p ${CBUILD}-gcc)
66 search=${search##*/}
67 else
68 search=gcc
69 fi
70
71 export BUILD_CC=${search}
72 echo "${search}"
73 }
74
75 # Quick way to export a bunch of vars at once
76 tc-export() {
77 local var
78 for var in "$@" ; do
79 eval tc-get${var} > /dev/null
80 done
81 }
82
83 # A simple way to see if we're using a cross-compiler ...
84 tc-is-cross-compiler() {
85 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
86 }
87
88
89 # Parse information from CBUILD/CHOST/CTARGET rather than
90 # use external variables from the profile.
91 tc-ninja_magic_to_arch() {
92 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
93
94 local type=$1
95 local host=$2
96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
97
98 case ${host} in
99 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;;
102 hppa*) ninj parisc hppa;;
103 ia64*) echo ia64;;
104 m68*) echo m68k;;
105 mips*) echo mips;;
106 powerpc64*) echo ppc64;;
107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
108 && ninj ppc64 ppc \
109 || echo ppc
110 ;;
111 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \
114 || echo sparc
115 ;;
116 s390*) echo s390;;
117 sh64*) ninj sh64 sh;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};;
121 esac
122 }
123 tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@
125 }
126 tc-arch() {
127 tc-ninja_magic_to_arch portage $@
128 }
129 tc-endian() {
130 local host=$1
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*}
133
134 case ${host} in
135 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;;
138 arm*) echo little;;
139 hppa*) echo big;;
140 ia64*) echo little;;
141 m68*) echo big;;
142 mips*l*) echo little;;
143 mips*) echo big;;
144 powerpc*) echo big;;
145 sparc*) echo big;;
146 s390*) echo big;;
147 sh*b*) echo big;;
148 sh*) echo little;;
149 i?86*) echo little;;
150 *) echo wtf;;
151 esac
152 }
153
154 # Returns the version as by `$CC -dumpversion`
155 gcc-fullversion() {
156 echo "$($(tc-getCC) -dumpversion)"
157 }
158 # Returns the version, but only the <major>.<minor>
159 gcc-version() {
160 echo "$(gcc-fullversion | cut -f1,2 -d.)"
161 }
162 # Returns the Major version
163 gcc-major-version() {
164 echo "$(gcc-version | cut -f1 -d.)"
165 }
166 # Returns the Minor version
167 gcc-minor-version() {
168 echo "$(gcc-version | cut -f2 -d.)"
169 }
170 # Returns the Micro version
171 gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173 }
174
175 # Returns requested gcc specs directive
176 # Note; if a spec exists more than once (e.g. in more than one specs file)
177 # the last one read is the active definition - i.e. they do not accumulate,
178 # each new definition replaces any previous definition.
179 gcc-specs-directive() {
180 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}')
181 [[ -z ${specfiles} ]] && return 0
182 awk -v spec=$1 \
183 'BEGIN { sstr=""; outside=1 }
184 $1=="*"spec":" { sstr=""; outside=0; next }
185 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
186 { sstr=sstr $0 }
187 END { print sstr }' ${specfiles}
188 }
189
190 # Returns true if gcc sets relro
191 gcc-specs-relro() {
192 local directive
193 directive=$(gcc-specs-directive link_command)
194 return $([[ ${directive/\{!norelro:} != ${directive} ]])
195 }
196 # Returns true if gcc sets now
197 gcc-specs-now() {
198 local directive
199 directive=$(gcc-specs-directive link_command)
200 return $([[ ${directive/\{!nonow:} != ${directive} ]])
201 }
202 # Returns true if gcc builds PIEs
203 gcc-specs-pie() {
204 local directive
205 directive=$(gcc-specs-directive cc1)
206 return $([[ ${directive/\{!nopie:} != ${directive} ]])
207 }
208 # Returns true if gcc builds with the stack protector
209 gcc-specs-ssp() {
210 local directive
211 directive=$(gcc-specs-directive cc1)
212 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
213 }

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