/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.54 - (show annotations) (download)
Tue Jan 24 20:12:53 2006 UTC (8 years, 11 months ago) by josejx
Branch: MAIN
Changes since 1.53: +10 -3 lines
Applied fix for bug #119203.

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 1.53 2006/01/15 20:31:52 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 bfin*) ninj blackfin bfin;;
100 cris*) echo cris;;
101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;;
104 m68*) echo m68k;;
105 mips*) echo mips;;
106 nios2*) echo nios2;;
107 nios*) echo nios;;
108 powerpc*)
109 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
110 # have been unified into simply 'powerpc', but until 2.6.16,
111 # ppc32 is still using ARCH="ppc" as default
112 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
113 echo powerpc
114 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
115 if [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
116 echo powerpc
117 else
118 echo ppc
119 fi
120 elif [[ ${host} == powerpc64* ]] ; then
121 echo ppc64
122 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
123 ninj ppc64 ppc
124 else
125 echo ppc
126 fi
127 ;;
128 s390*) echo s390;;
129 sh64*) ninj sh64 sh;;
130 sh*) echo sh;;
131 sparc64*) ninj sparc64 sparc;;
132 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
133 && ninj sparc64 sparc \
134 || echo sparc
135 ;;
136 vax*) echo vax;;
137 x86_64*) ninj x86_64 amd64;;
138 *) echo ${ARCH};;
139 esac
140 }
141 tc-arch-kernel() {
142 tc-ninja_magic_to_arch kern $@
143 }
144 tc-arch() {
145 tc-ninja_magic_to_arch portage $@
146 }
147 tc-endian() {
148 local host=$1
149 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
150 host=${host%%-*}
151
152 case ${host} in
153 alpha*) echo big;;
154 arm*b*) echo big;;
155 arm*) echo little;;
156 cris*) echo little;;
157 hppa*) echo big;;
158 i?86*) echo little;;
159 ia64*) echo little;;
160 m68*) echo big;;
161 mips*l*) echo little;;
162 mips*) echo big;;
163 powerpc*) echo big;;
164 s390*) echo big;;
165 sh*b*) echo big;;
166 sh*) echo little;;
167 sparc*) echo big;;
168 x86_64*) echo little;;
169 *) echo wtf;;
170 esac
171 }
172
173 # Returns the version as by `$CC -dumpversion`
174 gcc-fullversion() {
175 echo "$($(tc-getCC) -dumpversion)"
176 }
177 # Returns the version, but only the <major>.<minor>
178 gcc-version() {
179 echo "$(gcc-fullversion | cut -f1,2 -d.)"
180 }
181 # Returns the Major version
182 gcc-major-version() {
183 echo "$(gcc-version | cut -f1 -d.)"
184 }
185 # Returns the Minor version
186 gcc-minor-version() {
187 echo "$(gcc-version | cut -f2 -d.)"
188 }
189 # Returns the Micro version
190 gcc-micro-version() {
191 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
192 }
193
194 # Returns requested gcc specs directive
195 # Note; later specs normally overwrite earlier ones; however if a later
196 # spec starts with '+' then it appends.
197 # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
198 # as "Reading <file>", in order.
199 gcc-specs-directive() {
200 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
201 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
202 'BEGIN { pspec=""; spec=""; outside=1 }
203 $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
204 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
205 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
206 { spec=spec $0 }
207 END { print spec }'
208 return 0
209 }
210
211 # Returns true if gcc sets relro
212 gcc-specs-relro() {
213 local directive
214 directive=$(gcc-specs-directive link_command)
215 return $([[ ${directive/\{!norelro:} != ${directive} ]])
216 }
217 # Returns true if gcc sets now
218 gcc-specs-now() {
219 local directive
220 directive=$(gcc-specs-directive link_command)
221 return $([[ ${directive/\{!nonow:} != ${directive} ]])
222 }
223 # Returns true if gcc builds PIEs
224 gcc-specs-pie() {
225 local directive
226 directive=$(gcc-specs-directive cc1)
227 return $([[ ${directive/\{!nopie:} != ${directive} ]])
228 }
229 # Returns true if gcc builds with the stack protector
230 gcc-specs-ssp() {
231 local directive
232 directive=$(gcc-specs-directive cc1)
233 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
234 }
235 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
236 gcc-specs-ssp-to-all() {
237 local directive
238 directive=$(gcc-specs-directive cc1)
239 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
240 }

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