/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Contents of /eclass/toolchain-funcs.eclass

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Revision 1.58 - (show annotations) (download)
Sun Apr 2 10:10:59 2006 UTC (8 years, 5 months ago) by robbat2
Branch: MAIN
Changes since 1.57: +3 -1 lines
Add function to get CPP.

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 1.57 2006/03/28 21:25:14 kevquinn 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 preprocessor
39 tc-getCPP() { tc-getPROG CPP cpp "$@"; }
40 # Returns the name of the C++ compiler
41 tc-getCXX() { tc-getPROG CXX g++ "$@"; }
42 # Returns the name of the linker
43 tc-getLD() { tc-getPROG LD ld "$@"; }
44 # Returns the name of the symbol/object thingy
45 tc-getNM() { tc-getPROG NM nm "$@"; }
46 # Returns the name of the archiver indexer
47 tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
48 # Returns the name of the fortran compiler
49 tc-getF77() { tc-getPROG F77 f77 "$@"; }
50 # Returns the name of the java compiler
51 tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
52
53 # Returns the name of the C compiler for build
54 tc-getBUILD_CC() {
55 local v
56 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
57 if [[ -n ${!v} ]] ; then
58 export BUILD_CC=${!v}
59 echo "${!v}"
60 return 0
61 fi
62 done
63
64 local search=
65 if [[ -n ${CBUILD} ]] ; then
66 search=$(type -p ${CBUILD}-gcc)
67 search=${search##*/}
68 fi
69 search=${search:-gcc}
70
71 export BUILD_CC=${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 arm*) echo arm;;
101 bfin*) ninj blackfin bfin;;
102 cris*) echo cris;;
103 hppa*) ninj parisc hppa;;
104 i?86*) ninj i386 x86;;
105 ia64*) echo ia64;;
106 m68*) echo m68k;;
107 mips*) echo mips;;
108 nios2*) echo nios2;;
109 nios*) echo nios;;
110 powerpc*)
111 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
112 # have been unified into simply 'powerpc', but until 2.6.16,
113 # ppc32 is still using ARCH="ppc" as default
114 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
115 echo powerpc
116 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
117 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
118 echo powerpc
119 else
120 echo ppc
121 fi
122 elif [[ ${host} == powerpc64* ]] ; then
123 echo ppc64
124 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
125 ninj ppc64 ppc
126 else
127 echo ppc
128 fi
129 ;;
130 s390*) echo s390;;
131 sh64*) ninj sh64 sh;;
132 sh*) echo sh;;
133 sparc64*) ninj sparc64 sparc;;
134 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
135 && ninj sparc64 sparc \
136 || echo sparc
137 ;;
138 vax*) echo vax;;
139 x86_64*) ninj x86_64 amd64;;
140 *) echo ${ARCH};;
141 esac
142 }
143 tc-arch-kernel() {
144 tc-ninja_magic_to_arch kern $@
145 }
146 tc-arch() {
147 tc-ninja_magic_to_arch portage $@
148 }
149 tc-endian() {
150 local host=$1
151 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
152 host=${host%%-*}
153
154 case ${host} in
155 alpha*) echo big;;
156 arm*b*) echo big;;
157 arm*) echo little;;
158 cris*) echo little;;
159 hppa*) echo big;;
160 i?86*) echo little;;
161 ia64*) echo little;;
162 m68*) echo big;;
163 mips*l*) echo little;;
164 mips*) echo big;;
165 powerpc*) echo big;;
166 s390*) echo big;;
167 sh*b*) echo big;;
168 sh*) echo little;;
169 sparc*) echo big;;
170 x86_64*) echo little;;
171 *) echo wtf;;
172 esac
173 }
174
175 # Returns the version as by `$CC -dumpversion`
176 gcc-fullversion() {
177 echo "$($(tc-getCC) -dumpversion)"
178 }
179 # Returns the version, but only the <major>.<minor>
180 gcc-version() {
181 echo "$(gcc-fullversion | cut -f1,2 -d.)"
182 }
183 # Returns the Major version
184 gcc-major-version() {
185 echo "$(gcc-version | cut -f1 -d.)"
186 }
187 # Returns the Minor version
188 gcc-minor-version() {
189 echo "$(gcc-version | cut -f2 -d.)"
190 }
191 # Returns the Micro version
192 gcc-micro-version() {
193 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
194 }
195
196 # Returns requested gcc specs directive
197 # Note; later specs normally overwrite earlier ones; however if a later
198 # spec starts with '+' then it appends.
199 # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
200 # as "Reading <file>", in order.
201 gcc-specs-directive() {
202 local cc=$(tc-getCC)
203 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
204 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
205 'BEGIN { pspec=""; spec=""; outside=1 }
206 $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
207 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
208 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
209 { spec=spec $0 }
210 END { print spec }'
211 return 0
212 }
213
214 # Returns true if gcc sets relro
215 gcc-specs-relro() {
216 local directive
217 directive=$(gcc-specs-directive link_command)
218 return $([[ ${directive/\{!norelro:} != ${directive} ]])
219 }
220 # Returns true if gcc sets now
221 gcc-specs-now() {
222 local directive
223 directive=$(gcc-specs-directive link_command)
224 return $([[ ${directive/\{!nonow:} != ${directive} ]])
225 }
226 # Returns true if gcc builds PIEs
227 gcc-specs-pie() {
228 local directive
229 directive=$(gcc-specs-directive cc1)
230 return $([[ ${directive/\{!nopie:} != ${directive} ]])
231 }
232 # Returns true if gcc builds with the stack protector
233 gcc-specs-ssp() {
234 local directive
235 directive=$(gcc-specs-directive cc1)
236 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
237 }
238 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
239 gcc-specs-ssp-to-all() {
240 local directive
241 directive=$(gcc-specs-directive cc1)
242 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
243 }

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