/[gentoo-x86]/eclass/toolchain-funcs.eclass
Gentoo

Contents of /eclass/toolchain-funcs.eclass

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.88 - (hide annotations) (download)
Sat Mar 28 11:09:27 2009 UTC (5 years, 9 months ago) by vapier
Branch: MAIN
Changes since 1.87: +6 -2 lines
support funk SONAMEs like libfoo.so -> libfoo-0.1.so

1 vapier 1.67 # Copyright 1999-2007 Gentoo Foundation
2 vapier 1.1 # Distributed under the terms of the GNU General Public License v2
3 vapier 1.88 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.87 2009/03/01 08:09:44 vapier Exp $
4 vapier 1.74
5     # @ECLASS: toolchain-funcs.eclass
6     # @MAINTAINER:
7     # Toolchain Ninjas <toolchain@gentoo.org>
8     # @BLURB: functions to query common info about the toolchain
9     # @DESCRIPTION:
10     # The toolchain-funcs aims to provide a complete suite of functions
11     # for gleaning useful information about the toolchain and to simplify
12     # ugly things like cross-compiling and multilib. All of this is done
13     # in such a way that you can rely on the function always returning
14     # something sane.
15 vapier 1.1
16 vapier 1.69 ___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
17     [[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
18 eradicator 1.34
19 vapier 1.1 DESCRIPTION="Based on the ${ECLASS} eclass"
20    
21     tc-getPROG() {
22 vapier 1.33 local var=$1
23     local prog=$2
24 vapier 1.1
25 vapier 1.17 if [[ -n ${!var} ]] ; then
26 vapier 1.1 echo "${!var}"
27     return 0
28     fi
29    
30 eradicator 1.35 local search=
31     [[ -n $3 ]] && search=$(type -p "$3-${prog}")
32     [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
33     [[ -n ${search} ]] && prog=${search##*/}
34 vapier 1.1
35 vapier 1.17 export ${var}=${prog}
36 vapier 1.1 echo "${!var}"
37     }
38    
39 vapier 1.74 # @FUNCTION: tc-getAR
40     # @USAGE: [toolchain prefix]
41     # @RETURN: name of the archiver
42 vapier 1.33 tc-getAR() { tc-getPROG AR ar "$@"; }
43 vapier 1.74 # @FUNCTION: tc-getAS
44     # @USAGE: [toolchain prefix]
45     # @RETURN: name of the assembler
46 vapier 1.33 tc-getAS() { tc-getPROG AS as "$@"; }
47 vapier 1.74 # @FUNCTION: tc-getCC
48     # @USAGE: [toolchain prefix]
49     # @RETURN: name of the C compiler
50 vapier 1.33 tc-getCC() { tc-getPROG CC gcc "$@"; }
51 vapier 1.74 # @FUNCTION: tc-getCPP
52     # @USAGE: [toolchain prefix]
53     # @RETURN: name of the C preprocessor
54 robbat2 1.58 tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55 vapier 1.74 # @FUNCTION: tc-getCXX
56     # @USAGE: [toolchain prefix]
57     # @RETURN: name of the C++ compiler
58 vapier 1.33 tc-getCXX() { tc-getPROG CXX g++ "$@"; }
59 vapier 1.74 # @FUNCTION: tc-getLD
60     # @USAGE: [toolchain prefix]
61     # @RETURN: name of the linker
62 vapier 1.33 tc-getLD() { tc-getPROG LD ld "$@"; }
63 vapier 1.74 # @FUNCTION: tc-getSTRIP
64     # @USAGE: [toolchain prefix]
65     # @RETURN: name of the strip program
66 kanaka 1.59 tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67 vapier 1.74 # @FUNCTION: tc-getNM
68     # @USAGE: [toolchain prefix]
69     # @RETURN: name of the symbol/object thingy
70 vapier 1.33 tc-getNM() { tc-getPROG NM nm "$@"; }
71 vapier 1.74 # @FUNCTION: tc-getRANLIB
72     # @USAGE: [toolchain prefix]
73     # @RETURN: name of the archiver indexer
74 vapier 1.33 tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75 kumba 1.86 # @FUNCTION: tc-getOBJCOPY
76     # @USAGE: [toolchain prefix]
77     # @RETURN: name of the object copier
78     tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
79 vapier 1.74 # @FUNCTION: tc-getF77
80     # @USAGE: [toolchain prefix]
81     # @RETURN: name of the Fortran 77 compiler
82 kanaka 1.59 tc-getF77() { tc-getPROG F77 f77 "$@"; }
83 dberkholz 1.78 # @FUNCTION: tc-getFC
84 vapier 1.74 # @USAGE: [toolchain prefix]
85     # @RETURN: name of the Fortran 90 compiler
86 dberkholz 1.78 tc-getFC() { tc-getPROG FC gfortran "$@"; }
87 vapier 1.74 # @FUNCTION: tc-getGCJ
88     # @USAGE: [toolchain prefix]
89     # @RETURN: name of the java compiler
90 vapier 1.33 tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91 vapier 1.1
92 vapier 1.74 # @FUNCTION: tc-getBUILD_CC
93     # @USAGE: [toolchain prefix]
94     # @RETURN: name of the C compiler for building binaries to run on the build machine
95 vapier 1.4 tc-getBUILD_CC() {
96 vapier 1.43 local v
97     for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
98     if [[ -n ${!v} ]] ; then
99     export BUILD_CC=${!v}
100     echo "${!v}"
101     return 0
102     fi
103     done
104 vapier 1.4
105 vapier 1.9 local search=
106 vapier 1.17 if [[ -n ${CBUILD} ]] ; then
107 vapier 1.21 search=$(type -p ${CBUILD}-gcc)
108 vapier 1.17 search=${search##*/}
109 vapier 1.9 fi
110 vapier 1.45 search=${search:-gcc}
111 vapier 1.11
112 vapier 1.17 export BUILD_CC=${search}
113 vapier 1.11 echo "${search}"
114 vapier 1.4 }
115 vapier 1.1
116 vapier 1.74 # @FUNCTION: tc-export
117     # @USAGE: <list of toolchain variables>
118     # @DESCRIPTION:
119     # Quick way to export a bunch of compiler vars at once.
120 vapier 1.10 tc-export() {
121     local var
122     for var in "$@" ; do
123 vapier 1.79 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
124 vapier 1.36 eval tc-get${var} > /dev/null
125 vapier 1.10 done
126     }
127    
128 vapier 1.74 # @FUNCTION: tc-is-cross-compiler
129     # @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
130 vapier 1.12 tc-is-cross-compiler() {
131 vapier 1.43 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
132 vapier 1.12 }
133    
134 vapier 1.74 # @FUNCTION: tc-is-softfloat
135     # @DESCRIPTION:
136 vapier 1.65 # See if this toolchain is a softfloat based one.
137 vapier 1.74 # @CODE
138 vapier 1.65 # The possible return values:
139     # - only: the target is always softfloat (never had fpu)
140     # - yes: the target should support softfloat
141     # - no: the target should support hardfloat
142 vapier 1.74 # @CODE
143 vapier 1.65 # This allows us to react differently where packages accept
144     # softfloat flags in the case where support is optional, but
145     # rejects softfloat flags where the target always lacks an fpu.
146     tc-is-softfloat() {
147     case ${CTARGET} in
148 vapier 1.66 bfin*|h8300*)
149 vapier 1.65 echo "only" ;;
150     *)
151     [[ ${CTARGET//_/-} == *-softfloat-* ]] \
152     && echo "yes" \
153     || echo "no"
154     ;;
155     esac
156     }
157 vapier 1.1
158 swegener 1.40 # Parse information from CBUILD/CHOST/CTARGET rather than
159 vapier 1.20 # use external variables from the profile.
160     tc-ninja_magic_to_arch() {
161 vapier 1.21 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
162 vapier 1.19
163     local type=$1
164     local host=$2
165 eradicator 1.25 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
166 vapier 1.19
167     case ${host} in
168     alpha*) echo alpha;;
169     arm*) echo arm;;
170 vapier 1.72 avr*) ninj avr32 avr;;
171 vapier 1.53 bfin*) ninj blackfin bfin;;
172 vapier 1.47 cris*) echo cris;;
173 vapier 1.19 hppa*) ninj parisc hppa;;
174 vapier 1.75 i?86*)
175     # Starting with linux-2.6.24, the 'x86_64' and 'i386'
176     # trees have been unified into 'x86'.
177 aballier 1.77 # FreeBSD still uses i386
178     if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
179 vapier 1.75 echo i386
180     else
181     echo x86
182     fi
183     ;;
184 vapier 1.19 ia64*) echo ia64;;
185 vapier 1.23 m68*) echo m68k;;
186 vapier 1.19 mips*) echo mips;;
187 vapier 1.52 nios2*) echo nios2;;
188     nios*) echo nios;;
189 vapier 1.49 powerpc*)
190     # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
191 josejx 1.54 # have been unified into simply 'powerpc', but until 2.6.16,
192     # ppc32 is still using ARCH="ppc" as default
193     if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
194 vapier 1.49 echo powerpc
195 josejx 1.54 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
196 dostrow 1.55 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
197 josejx 1.54 echo powerpc
198     else
199     echo ppc
200 swegener 1.56 fi
201 vapier 1.49 elif [[ ${host} == powerpc64* ]] ; then
202     echo ppc64
203 dostrow 1.51 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
204     ninj ppc64 ppc
205 vapier 1.49 else
206     echo ppc
207     fi
208 dostrow 1.37 ;;
209 vapier 1.47 s390*) echo s390;;
210     sh64*) ninj sh64 sh;;
211     sh*) echo sh;;
212 vapier 1.19 sparc64*) ninj sparc64 sparc;;
213 vapier 1.28 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
214     && ninj sparc64 sparc \
215     || echo sparc
216     ;;
217 vapier 1.47 vax*) echo vax;;
218 vapier 1.75 x86_64*)
219     # Starting with linux-2.6.24, the 'x86_64' and 'i386'
220     # trees have been unified into 'x86'.
221     if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
222     echo x86
223     else
224     ninj x86_64 amd64
225     fi
226     ;;
227 vapier 1.73
228     # since our usage of tc-arch is largely concerned with
229     # normalizing inputs for testing ${CTARGET}, let's filter
230     # other cross targets (mingw and such) into the unknown.
231     *) echo unknown;;
232 vapier 1.19 esac
233     }
234 vapier 1.74 # @FUNCTION: tc-arch-kernel
235     # @USAGE: [toolchain prefix]
236     # @RETURN: name of the kernel arch according to the compiler target
237 vapier 1.20 tc-arch-kernel() {
238 vapier 1.74 tc-ninja_magic_to_arch kern "$@"
239 vapier 1.19 }
240 vapier 1.74 # @FUNCTION: tc-arch
241     # @USAGE: [toolchain prefix]
242     # @RETURN: name of the portage arch according to the compiler target
243 vapier 1.20 tc-arch() {
244 vapier 1.74 tc-ninja_magic_to_arch portage "$@"
245 vapier 1.19 }
246 vapier 1.74
247 robbat2 1.71 tc-endian() {
248     local host=$1
249     [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
250     host=${host%%-*}
251    
252     case ${host} in
253     alpha*) echo big;;
254     arm*b*) echo big;;
255     arm*) echo little;;
256     cris*) echo little;;
257     hppa*) echo big;;
258     i?86*) echo little;;
259     ia64*) echo little;;
260     m68*) echo big;;
261     mips*l*) echo little;;
262     mips*) echo big;;
263     powerpc*) echo big;;
264     s390*) echo big;;
265     sh*b*) echo big;;
266     sh*) echo little;;
267     sparc*) echo big;;
268     x86_64*) echo little;;
269     *) echo wtf;;
270     esac
271     }
272 vapier 1.19
273 vapier 1.74 # @FUNCTION: gcc-fullversion
274     # @RETURN: compiler version (major.minor.micro: [3.4.6])
275 vapier 1.1 gcc-fullversion() {
276 vapier 1.63 $(tc-getCC "$@") -dumpversion
277 vapier 1.1 }
278 vapier 1.74 # @FUNCTION: gcc-version
279     # @RETURN: compiler version (major.minor: [3.4].6)
280 vapier 1.1 gcc-version() {
281 vapier 1.63 gcc-fullversion "$@" | cut -f1,2 -d.
282 vapier 1.1 }
283 vapier 1.74 # @FUNCTION: gcc-major-version
284     # @RETURN: major compiler version (major: [3].4.6)
285 vapier 1.1 gcc-major-version() {
286 vapier 1.63 gcc-version "$@" | cut -f1 -d.
287 vapier 1.1 }
288 vapier 1.74 # @FUNCTION: gcc-minor-version
289     # @RETURN: minor compiler version (minor: 3.[4].6)
290 vapier 1.1 gcc-minor-version() {
291 vapier 1.63 gcc-version "$@" | cut -f2 -d.
292 vapier 1.1 }
293 vapier 1.74 # @FUNCTION: gcc-micro-version
294     # @RETURN: micro compiler version (micro: 3.4.[6])
295 vapier 1.1 gcc-micro-version() {
296 vapier 1.63 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
297 vapier 1.1 }
298 vapier 1.74
299 kevquinn 1.68 # Returns the installation directory - internal toolchain
300     # function for use by _gcc-specs-exists (for flag-o-matic).
301     _gcc-install-dir() {
302 vapier 1.76 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
303 kevquinn 1.68 awk '$1=="install:" {print $2}')"
304     }
305     # Returns true if the indicated specs file exists - internal toolchain
306     # function for use by flag-o-matic.
307     _gcc-specs-exists() {
308     [[ -f $(_gcc-install-dir)/$1 ]]
309     }
310 kevquinn 1.41
311 kevquinn 1.68 # Returns requested gcc specs directive unprocessed - for used by
312     # gcc-specs-directive()
313 kevquinn 1.46 # Note; later specs normally overwrite earlier ones; however if a later
314     # spec starts with '+' then it appends.
315     # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
316 kevquinn 1.68 # as "Reading <file>", in order. Strictly speaking, if there's a
317     # $(gcc_install_dir)/specs, the built-in specs aren't read, however by
318     # the same token anything from 'gcc -dumpspecs' is overridden by
319     # the contents of $(gcc_install_dir)/specs so the result is the
320     # same either way.
321     _gcc-specs-directive_raw() {
322 kevquinn 1.57 local cc=$(tc-getCC)
323     local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
324     ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
325 kevquinn 1.46 'BEGIN { pspec=""; spec=""; outside=1 }
326     $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
327 kevquinn 1.41 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
328 kevquinn 1.46 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
329     { spec=spec $0 }
330     END { print spec }'
331     return 0
332 kevquinn 1.41 }
333    
334 kevquinn 1.68 # Return the requested gcc specs directive, with all included
335     # specs expanded.
336     # Note, it does not check for inclusion loops, which cause it
337     # to never finish - but such loops are invalid for gcc and we're
338     # assuming gcc is operational.
339     gcc-specs-directive() {
340     local directive subdname subdirective
341     directive="$(_gcc-specs-directive_raw $1)"
342     while [[ ${directive} == *%\(*\)* ]]; do
343     subdname=${directive/*%\(}
344     subdname=${subdname/\)*}
345     subdirective="$(_gcc-specs-directive_raw ${subdname})"
346     directive="${directive//\%(${subdname})/${subdirective}}"
347     done
348     echo "${directive}"
349     return 0
350     }
351    
352 kevquinn 1.41 # Returns true if gcc sets relro
353     gcc-specs-relro() {
354     local directive
355     directive=$(gcc-specs-directive link_command)
356 gengor 1.84 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
357 kevquinn 1.41 }
358     # Returns true if gcc sets now
359     gcc-specs-now() {
360     local directive
361     directive=$(gcc-specs-directive link_command)
362 gengor 1.84 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
363 kevquinn 1.41 }
364     # Returns true if gcc builds PIEs
365     gcc-specs-pie() {
366     local directive
367     directive=$(gcc-specs-directive cc1)
368 gengor 1.84 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
369 kevquinn 1.41 }
370     # Returns true if gcc builds with the stack protector
371     gcc-specs-ssp() {
372     local directive
373     directive=$(gcc-specs-directive cc1)
374 gengor 1.84 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
375 kevquinn 1.41 }
376 kevquinn 1.46 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
377     gcc-specs-ssp-to-all() {
378     local directive
379     directive=$(gcc-specs-directive cc1)
380 gengor 1.84 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
381 kevquinn 1.46 }
382 gengor 1.80 # Returns true if gcc builds with fno-strict-overflow
383     gcc-specs-nostrict() {
384     local directive
385     directive=$(gcc-specs-directive cc1)
386 gengor 1.84 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
387 gengor 1.80 }
388 vapier 1.60
389    
390 vapier 1.74 # @FUNCTION: gen_usr_ldscript
391 vapier 1.85 # @USAGE: [-a] <list of libs to create linker scripts for>
392 vapier 1.74 # @DESCRIPTION:
393 vapier 1.60 # This function generate linker scripts in /usr/lib for dynamic
394     # libs in /lib. This is to fix linking problems when you have
395     # the .so in /lib, and the .a in /usr/lib. What happens is that
396     # in some cases when linking dynamic, the .a in /usr/lib is used
397     # instead of the .so in /lib due to gcc/libtool tweaking ld's
398 vapier 1.74 # library search path. This causes many builds to fail.
399 vapier 1.60 # See bug #4411 for more info.
400     #
401     # Note that you should in general use the unversioned name of
402 vapier 1.74 # the library (libfoo.so), as ldconfig should usually update it
403     # correctly to point to the latest version of the library present.
404 vapier 1.70 gen_usr_ldscript() {
405 vapier 1.85 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
406 vapier 1.60 # Just make sure it exists
407     dodir /usr/${libdir}
408    
409 vapier 1.85 if [[ $1 == "-a" ]] ; then
410     auto=true
411     shift
412     dodir /${libdir}
413     fi
414    
415 vapier 1.60 # OUTPUT_FORMAT gives hints to the linker as to what binary format
416     # is referenced ... makes multilib saner
417     output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
418     [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
419    
420     for lib in "$@" ; do
421 vapier 1.62 if [[ ${USERLAND} == "Darwin" ]] ; then
422     ewarn "Not creating fake dynamic library for $lib on Darwin;"
423 grobian 1.61 ewarn "making a symlink instead."
424     dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
425     else
426 vapier 1.85 local tlib
427     if ${auto} ; then
428     lib="lib${lib}${suffix}"
429 vapier 1.88 tlib=$(scanelf -qF'%S#F' "${D}"/usr/${libdir}/${lib})
430 vapier 1.85 mv "${D}"/usr/${libdir}/${lib}* "${D}"/${libdir}/ || die
431 vapier 1.88 # some SONAMEs are funky: they encode a version before the .so
432     if [[ ${tlib} != ${lib}* ]] ; then
433     mv "${D}"/usr/${libdir}/${tlib}* "${D}"/${libdir}/ || die
434     fi
435 vapier 1.85 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
436     rm -f "${D}"/${libdir}/${lib}
437     else
438     tlib=${lib}
439     fi
440 grobian 1.61 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
441     /* GNU ld script
442 vapier 1.87 Since Gentoo has critical dynamic libraries in /lib, and the static versions
443     in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
444     run into linking problems. This "fake" dynamic lib is a linker script that
445     redirects the linker to the real lib. And yes, this works in the cross-
446     compiling scenario as the sysroot-ed linker will prepend the real path.
447 grobian 1.61
448     See bug http://bugs.gentoo.org/4411 for more info.
449     */
450     ${output_format}
451 vapier 1.85 GROUP ( /${libdir}/${tlib} )
452 grobian 1.61 END_LDSCRIPT
453 vapier 1.85 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
454 grobian 1.61 fi
455 vapier 1.60 done
456     }

  ViewVC Help
Powered by ViewVC 1.1.20