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

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Revision 1.64 - (hide annotations) (download)
Sun Jan 7 11:39:08 2007 UTC (7 years, 3 months ago) by vapier
Branch: MAIN
Changes since 1.63: +1 -26 lines
no one uses tc-endian() so just cut it ... people should be handling endian in the source code itself anyways, not in the ebuild

1 vapier 1.50 # Copyright 1999-2006 Gentoo Foundation
2 vapier 1.1 # Distributed under the terms of the GNU General Public License v2
3 vapier 1.64 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.63 2006/12/16 10:31:12 vapier Exp $
4 vapier 1.1 #
5 vapier 1.47 # Author: Toolchain Ninjas <toolchain@gentoo.org>
6 vapier 1.1 #
7 swegener 1.40 # This eclass contains (or should) functions to get common info
8 vapier 1.1 # about the toolchain (libc/compiler/binutils/etc...)
9    
10 eradicator 1.34 inherit multilib
11    
12 vapier 1.1 DESCRIPTION="Based on the ${ECLASS} eclass"
13    
14     tc-getPROG() {
15 vapier 1.33 local var=$1
16     local prog=$2
17 vapier 1.1
18 vapier 1.17 if [[ -n ${!var} ]] ; then
19 vapier 1.1 echo "${!var}"
20     return 0
21     fi
22    
23 eradicator 1.35 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 vapier 1.1
28 vapier 1.17 export ${var}=${prog}
29 vapier 1.1 echo "${!var}"
30     }
31    
32     # Returns the name of the archiver
33 vapier 1.33 tc-getAR() { tc-getPROG AR ar "$@"; }
34 vapier 1.1 # Returns the name of the assembler
35 vapier 1.33 tc-getAS() { tc-getPROG AS as "$@"; }
36 vapier 1.1 # Returns the name of the C compiler
37 vapier 1.33 tc-getCC() { tc-getPROG CC gcc "$@"; }
38 robbat2 1.58 # Returns the name of the C preprocessor
39     tc-getCPP() { tc-getPROG CPP cpp "$@"; }
40 vapier 1.1 # Returns the name of the C++ compiler
41 vapier 1.33 tc-getCXX() { tc-getPROG CXX g++ "$@"; }
42 vapier 1.1 # Returns the name of the linker
43 vapier 1.33 tc-getLD() { tc-getPROG LD ld "$@"; }
44 kanaka 1.59 # Returns the name of the strip prog
45     tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
46 vapier 1.1 # Returns the name of the symbol/object thingy
47 vapier 1.33 tc-getNM() { tc-getPROG NM nm "$@"; }
48 vapier 1.1 # Returns the name of the archiver indexer
49 vapier 1.33 tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
50 kanaka 1.59 # Returns the name of the fortran 77 compiler
51     tc-getF77() { tc-getPROG F77 f77 "$@"; }
52     # Returns the name of the fortran 90 compiler
53     tc-getF90() { tc-getPROG F90 gfortran "$@"; }
54 vapier 1.7 # Returns the name of the fortran compiler
55 kanaka 1.59 tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; }
56 vapier 1.8 # Returns the name of the java compiler
57 vapier 1.33 tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
58 vapier 1.1
59 vapier 1.4 # Returns the name of the C compiler for build
60     tc-getBUILD_CC() {
61 vapier 1.43 local v
62     for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
63     if [[ -n ${!v} ]] ; then
64     export BUILD_CC=${!v}
65     echo "${!v}"
66     return 0
67     fi
68     done
69 vapier 1.4
70 vapier 1.9 local search=
71 vapier 1.17 if [[ -n ${CBUILD} ]] ; then
72 vapier 1.21 search=$(type -p ${CBUILD}-gcc)
73 vapier 1.17 search=${search##*/}
74 vapier 1.9 fi
75 vapier 1.45 search=${search:-gcc}
76 vapier 1.11
77 vapier 1.17 export BUILD_CC=${search}
78 vapier 1.11 echo "${search}"
79 vapier 1.4 }
80 vapier 1.1
81 vapier 1.10 # Quick way to export a bunch of vars at once
82     tc-export() {
83     local var
84     for var in "$@" ; do
85 vapier 1.36 eval tc-get${var} > /dev/null
86 vapier 1.10 done
87     }
88    
89 vapier 1.12 # A simple way to see if we're using a cross-compiler ...
90     tc-is-cross-compiler() {
91 vapier 1.43 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
92 vapier 1.12 }
93    
94 vapier 1.1
95 swegener 1.40 # Parse information from CBUILD/CHOST/CTARGET rather than
96 vapier 1.20 # use external variables from the profile.
97     tc-ninja_magic_to_arch() {
98 vapier 1.21 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
99 vapier 1.19
100     local type=$1
101     local host=$2
102 eradicator 1.25 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
103 vapier 1.19
104     case ${host} in
105     alpha*) echo alpha;;
106     arm*) echo arm;;
107 vapier 1.53 bfin*) ninj blackfin bfin;;
108 vapier 1.47 cris*) echo cris;;
109 vapier 1.19 hppa*) ninj parisc hppa;;
110 vapier 1.47 i?86*) ninj i386 x86;;
111 vapier 1.19 ia64*) echo ia64;;
112 vapier 1.23 m68*) echo m68k;;
113 vapier 1.19 mips*) echo mips;;
114 vapier 1.52 nios2*) echo nios2;;
115     nios*) echo nios;;
116 vapier 1.49 powerpc*)
117     # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
118 josejx 1.54 # have been unified into simply 'powerpc', but until 2.6.16,
119     # ppc32 is still using ARCH="ppc" as default
120     if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
121 vapier 1.49 echo powerpc
122 josejx 1.54 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
123 dostrow 1.55 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
124 josejx 1.54 echo powerpc
125     else
126     echo ppc
127 swegener 1.56 fi
128 vapier 1.49 elif [[ ${host} == powerpc64* ]] ; then
129     echo ppc64
130 dostrow 1.51 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
131     ninj ppc64 ppc
132 vapier 1.49 else
133     echo ppc
134     fi
135 dostrow 1.37 ;;
136 vapier 1.47 s390*) echo s390;;
137     sh64*) ninj sh64 sh;;
138     sh*) echo sh;;
139 vapier 1.19 sparc64*) ninj sparc64 sparc;;
140 vapier 1.28 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
141     && ninj sparc64 sparc \
142     || echo sparc
143     ;;
144 vapier 1.47 vax*) echo vax;;
145     x86_64*) ninj x86_64 amd64;;
146 vapier 1.28 *) echo ${ARCH};;
147 vapier 1.19 esac
148     }
149 vapier 1.20 tc-arch-kernel() {
150     tc-ninja_magic_to_arch kern $@
151 vapier 1.19 }
152 vapier 1.20 tc-arch() {
153     tc-ninja_magic_to_arch portage $@
154 vapier 1.19 }
155    
156 vapier 1.1 # Returns the version as by `$CC -dumpversion`
157     gcc-fullversion() {
158 vapier 1.63 $(tc-getCC "$@") -dumpversion
159 vapier 1.1 }
160     # Returns the version, but only the <major>.<minor>
161     gcc-version() {
162 vapier 1.63 gcc-fullversion "$@" | cut -f1,2 -d.
163 vapier 1.1 }
164     # Returns the Major version
165     gcc-major-version() {
166 vapier 1.63 gcc-version "$@" | cut -f1 -d.
167 vapier 1.1 }
168     # Returns the Minor version
169     gcc-minor-version() {
170 vapier 1.63 gcc-version "$@" | cut -f2 -d.
171 vapier 1.1 }
172     # Returns the Micro version
173     gcc-micro-version() {
174 vapier 1.63 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
175 vapier 1.1 }
176 kevquinn 1.41
177     # Returns requested gcc specs directive
178 kevquinn 1.46 # Note; later specs normally overwrite earlier ones; however if a later
179     # spec starts with '+' then it appends.
180     # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
181     # as "Reading <file>", in order.
182 kevquinn 1.41 gcc-specs-directive() {
183 kevquinn 1.57 local cc=$(tc-getCC)
184     local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
185     ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
186 kevquinn 1.46 'BEGIN { pspec=""; spec=""; outside=1 }
187     $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
188 kevquinn 1.41 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
189 kevquinn 1.46 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
190     { spec=spec $0 }
191     END { print spec }'
192     return 0
193 kevquinn 1.41 }
194    
195     # Returns true if gcc sets relro
196     gcc-specs-relro() {
197     local directive
198     directive=$(gcc-specs-directive link_command)
199     return $([[ ${directive/\{!norelro:} != ${directive} ]])
200     }
201     # Returns true if gcc sets now
202     gcc-specs-now() {
203     local directive
204     directive=$(gcc-specs-directive link_command)
205     return $([[ ${directive/\{!nonow:} != ${directive} ]])
206     }
207     # Returns true if gcc builds PIEs
208     gcc-specs-pie() {
209     local directive
210     directive=$(gcc-specs-directive cc1)
211     return $([[ ${directive/\{!nopie:} != ${directive} ]])
212     }
213     # Returns true if gcc builds with the stack protector
214     gcc-specs-ssp() {
215     local directive
216     directive=$(gcc-specs-directive cc1)
217     return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
218     }
219 kevquinn 1.46 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
220     gcc-specs-ssp-to-all() {
221     local directive
222     directive=$(gcc-specs-directive cc1)
223     return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
224     }
225 vapier 1.60
226    
227     # This function generate linker scripts in /usr/lib for dynamic
228     # libs in /lib. This is to fix linking problems when you have
229     # the .so in /lib, and the .a in /usr/lib. What happens is that
230     # in some cases when linking dynamic, the .a in /usr/lib is used
231     # instead of the .so in /lib due to gcc/libtool tweaking ld's
232     # library search path. This cause many builds to fail.
233     # See bug #4411 for more info.
234     #
235     # To use, simply call:
236     #
237     # gen_usr_ldscript libfoo.so
238     #
239     # Note that you should in general use the unversioned name of
240     # the library, as ldconfig should usually update it correctly
241     # to point to the latest version of the library present.
242     _tc_gen_usr_ldscript() {
243     local lib libdir=$(get_libdir) output_format=""
244     # Just make sure it exists
245     dodir /usr/${libdir}
246    
247     # OUTPUT_FORMAT gives hints to the linker as to what binary format
248     # is referenced ... makes multilib saner
249     output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
250     [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
251    
252     for lib in "$@" ; do
253 vapier 1.62 if [[ ${USERLAND} == "Darwin" ]] ; then
254     ewarn "Not creating fake dynamic library for $lib on Darwin;"
255 grobian 1.61 ewarn "making a symlink instead."
256     dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
257     else
258     cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
259     /* GNU ld script
260     Since Gentoo has critical dynamic libraries
261     in /lib, and the static versions in /usr/lib,
262     we need to have a "fake" dynamic lib in /usr/lib,
263     otherwise we run into linking problems.
264    
265     See bug http://bugs.gentoo.org/4411 for more info.
266     */
267     ${output_format}
268     GROUP ( /${libdir}/${lib} )
269     END_LDSCRIPT
270     fi
271 vapier 1.60 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
272     done
273     }
274     gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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