/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.51 - (show annotations) (download)
Mon Jan 9 04:35:14 2006 UTC (8 years, 9 months ago) by dostrow
Branch: MAIN
Changes since 1.50: +3 -1 lines
Minor fixup for new powerpc tree in toolchain-funcs.eclass.

1 # Copyright 1999-2006 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 1.50 2006/01/08 03:37:36 vapier Exp $
4 #
5 # Author: Toolchain Ninjas <toolchain@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 ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/}
27
28 export ${var}=${prog}
29 echo "${!var}"
30 }
31
32 # Returns the name of the archiver
33 tc-getAR() { tc-getPROG AR ar "$@"; }
34 # Returns the name of the assembler
35 tc-getAS() { tc-getPROG AS as "$@"; }
36 # Returns the name of the C compiler
37 tc-getCC() { tc-getPROG CC gcc "$@"; }
38 # Returns the name of the C++ compiler
39 tc-getCXX() { tc-getPROG CXX g++ "$@"; }
40 # Returns the name of the linker
41 tc-getLD() { tc-getPROG LD ld "$@"; }
42 # Returns the name of the symbol/object thingy
43 tc-getNM() { tc-getPROG NM nm "$@"; }
44 # Returns the name of the archiver indexer
45 tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
46 # Returns the name of the fortran compiler
47 tc-getF77() { tc-getPROG F77 f77 "$@"; }
48 # Returns the name of the java compiler
49 tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
50
51 # Returns the name of the C compiler for build
52 tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
55 if [[ -n ${!v} ]] ; then
56 export BUILD_CC=${!v}
57 echo "${!v}"
58 return 0
59 fi
60 done
61
62 local search=
63 if [[ -n ${CBUILD} ]] ; then
64 search=$(type -p ${CBUILD}-gcc)
65 search=${search##*/}
66 fi
67 search=${search:-gcc}
68
69 export BUILD_CC=${search}
70 echo "${search}"
71 }
72
73 # Quick way to export a bunch of vars at once
74 tc-export() {
75 local var
76 for var in "$@" ; do
77 eval tc-get${var} > /dev/null
78 done
79 }
80
81 # A simple way to see if we're using a cross-compiler ...
82 tc-is-cross-compiler() {
83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
84 }
85
86
87 # Parse information from CBUILD/CHOST/CTARGET rather than
88 # use external variables from the profile.
89 tc-ninja_magic_to_arch() {
90 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
91
92 local type=$1
93 local host=$2
94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
95
96 case ${host} in
97 alpha*) echo alpha;;
98 arm*) echo arm;;
99 cris*) echo cris;;
100 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
102 ia64*) echo ia64;;
103 m68*) echo m68k;;
104 mips*) echo mips;;
105 powerpc*)
106 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
107 # have been unified into simply 'powerpc'
108 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
109 echo powerpc
110 elif [[ ${host} == powerpc64* ]] ; then
111 echo ppc64
112 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
113 ninj ppc64 ppc
114 else
115 echo ppc
116 fi
117 ;;
118 s390*) echo s390;;
119 sh64*) ninj sh64 sh;;
120 sh*) echo sh;;
121 sparc64*) ninj sparc64 sparc;;
122 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
123 && ninj sparc64 sparc \
124 || echo sparc
125 ;;
126 vax*) echo vax;;
127 x86_64*) ninj x86_64 amd64;;
128 *) echo ${ARCH};;
129 esac
130 }
131 tc-arch-kernel() {
132 tc-ninja_magic_to_arch kern $@
133 }
134 tc-arch() {
135 tc-ninja_magic_to_arch portage $@
136 }
137 tc-endian() {
138 local host=$1
139 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
140 host=${host%%-*}
141
142 case ${host} in
143 alpha*) echo big;;
144 arm*b*) echo big;;
145 arm*) echo little;;
146 cris*) echo little;;
147 hppa*) echo big;;
148 i?86*) echo little;;
149 ia64*) echo little;;
150 m68*) echo big;;
151 mips*l*) echo little;;
152 mips*) echo big;;
153 powerpc*) echo big;;
154 s390*) echo big;;
155 sh*b*) echo big;;
156 sh*) echo little;;
157 sparc*) echo big;;
158 x86_64*) echo little;;
159 *) echo wtf;;
160 esac
161 }
162
163 # Returns the version as by `$CC -dumpversion`
164 gcc-fullversion() {
165 echo "$($(tc-getCC) -dumpversion)"
166 }
167 # Returns the version, but only the <major>.<minor>
168 gcc-version() {
169 echo "$(gcc-fullversion | cut -f1,2 -d.)"
170 }
171 # Returns the Major version
172 gcc-major-version() {
173 echo "$(gcc-version | cut -f1 -d.)"
174 }
175 # Returns the Minor version
176 gcc-minor-version() {
177 echo "$(gcc-version | cut -f2 -d.)"
178 }
179 # Returns the Micro version
180 gcc-micro-version() {
181 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
182 }
183
184 # Returns requested gcc specs directive
185 # Note; later specs normally overwrite earlier ones; however if a later
186 # spec starts with '+' then it appends.
187 # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
188 # as "Reading <file>", in order.
189 gcc-specs-directive() {
190 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
191 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
192 'BEGIN { pspec=""; spec=""; outside=1 }
193 $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
194 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
195 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
196 { spec=spec $0 }
197 END { print spec }'
198 return 0
199 }
200
201 # Returns true if gcc sets relro
202 gcc-specs-relro() {
203 local directive
204 directive=$(gcc-specs-directive link_command)
205 return $([[ ${directive/\{!norelro:} != ${directive} ]])
206 }
207 # Returns true if gcc sets now
208 gcc-specs-now() {
209 local directive
210 directive=$(gcc-specs-directive link_command)
211 return $([[ ${directive/\{!nonow:} != ${directive} ]])
212 }
213 # Returns true if gcc builds PIEs
214 gcc-specs-pie() {
215 local directive
216 directive=$(gcc-specs-directive cc1)
217 return $([[ ${directive/\{!nopie:} != ${directive} ]])
218 }
219 # Returns true if gcc builds with the stack protector
220 gcc-specs-ssp() {
221 local directive
222 directive=$(gcc-specs-directive cc1)
223 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
224 }
225 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
226 gcc-specs-ssp-to-all() {
227 local directive
228 directive=$(gcc-specs-directive cc1)
229 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
230 }

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