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

Contents of /eclass/toolchain-funcs.eclass

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.68 - (hide annotations) (download)
Thu Mar 15 15:55:59 2007 UTC (7 years, 9 months ago) by kevquinn
Branch: MAIN
Changes since 1.67: +38 -4 lines
Upgrade gcc-specs-directive to handle spec string substitutions.

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 kevquinn 1.68 # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.67 2007/03/04 21:03:58 vapier Exp $
4 vapier 1.1 #
5 vapier 1.67 # Maintainer: 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 1.65 # See if this toolchain is a softfloat based one.
95     # The possible return values:
96     # - only: the target is always softfloat (never had fpu)
97     # - yes: the target should support softfloat
98     # - no: the target should support hardfloat
99     # This allows us to react differently where packages accept
100     # softfloat flags in the case where support is optional, but
101     # rejects softfloat flags where the target always lacks an fpu.
102     tc-is-softfloat() {
103     case ${CTARGET} in
104 vapier 1.66 bfin*|h8300*)
105 vapier 1.65 echo "only" ;;
106     *)
107     [[ ${CTARGET//_/-} == *-softfloat-* ]] \
108     && echo "yes" \
109     || echo "no"
110     ;;
111     esac
112     }
113 vapier 1.1
114 swegener 1.40 # Parse information from CBUILD/CHOST/CTARGET rather than
115 vapier 1.20 # use external variables from the profile.
116     tc-ninja_magic_to_arch() {
117 vapier 1.21 ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
118 vapier 1.19
119     local type=$1
120     local host=$2
121 eradicator 1.25 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
122 vapier 1.19
123     case ${host} in
124     alpha*) echo alpha;;
125     arm*) echo arm;;
126 vapier 1.53 bfin*) ninj blackfin bfin;;
127 vapier 1.47 cris*) echo cris;;
128 vapier 1.19 hppa*) ninj parisc hppa;;
129 vapier 1.47 i?86*) ninj i386 x86;;
130 vapier 1.19 ia64*) echo ia64;;
131 vapier 1.23 m68*) echo m68k;;
132 vapier 1.19 mips*) echo mips;;
133 vapier 1.52 nios2*) echo nios2;;
134     nios*) echo nios;;
135 vapier 1.49 powerpc*)
136     # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
137 josejx 1.54 # have been unified into simply 'powerpc', but until 2.6.16,
138     # ppc32 is still using ARCH="ppc" as default
139     if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
140 vapier 1.49 echo powerpc
141 josejx 1.54 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
142 dostrow 1.55 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
143 josejx 1.54 echo powerpc
144     else
145     echo ppc
146 swegener 1.56 fi
147 vapier 1.49 elif [[ ${host} == powerpc64* ]] ; then
148     echo ppc64
149 dostrow 1.51 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
150     ninj ppc64 ppc
151 vapier 1.49 else
152     echo ppc
153     fi
154 dostrow 1.37 ;;
155 vapier 1.47 s390*) echo s390;;
156     sh64*) ninj sh64 sh;;
157     sh*) echo sh;;
158 vapier 1.19 sparc64*) ninj sparc64 sparc;;
159 vapier 1.28 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
160     && ninj sparc64 sparc \
161     || echo sparc
162     ;;
163 vapier 1.47 vax*) echo vax;;
164     x86_64*) ninj x86_64 amd64;;
165 vapier 1.28 *) echo ${ARCH};;
166 vapier 1.19 esac
167     }
168 vapier 1.20 tc-arch-kernel() {
169     tc-ninja_magic_to_arch kern $@
170 vapier 1.19 }
171 vapier 1.20 tc-arch() {
172     tc-ninja_magic_to_arch portage $@
173 vapier 1.19 }
174    
175 vapier 1.1 # Returns the version as by `$CC -dumpversion`
176     gcc-fullversion() {
177 vapier 1.63 $(tc-getCC "$@") -dumpversion
178 vapier 1.1 }
179     # Returns the version, but only the <major>.<minor>
180     gcc-version() {
181 vapier 1.63 gcc-fullversion "$@" | cut -f1,2 -d.
182 vapier 1.1 }
183     # Returns the Major version
184     gcc-major-version() {
185 vapier 1.63 gcc-version "$@" | cut -f1 -d.
186 vapier 1.1 }
187     # Returns the Minor version
188     gcc-minor-version() {
189 vapier 1.63 gcc-version "$@" | cut -f2 -d.
190 vapier 1.1 }
191     # Returns the Micro version
192     gcc-micro-version() {
193 vapier 1.63 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
194 vapier 1.1 }
195 kevquinn 1.68 # Returns the installation directory - internal toolchain
196     # function for use by _gcc-specs-exists (for flag-o-matic).
197     _gcc-install-dir() {
198     echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\
199     awk '$1=="install:" {print $2}')"
200     }
201     # Returns true if the indicated specs file exists - internal toolchain
202     # function for use by flag-o-matic.
203     _gcc-specs-exists() {
204     [[ -f $(_gcc-install-dir)/$1 ]]
205     }
206 kevquinn 1.41
207 kevquinn 1.68 # Returns requested gcc specs directive unprocessed - for used by
208     # gcc-specs-directive()
209 kevquinn 1.46 # Note; later specs normally overwrite earlier ones; however if a later
210     # spec starts with '+' then it appends.
211     # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
212 kevquinn 1.68 # as "Reading <file>", in order. Strictly speaking, if there's a
213     # $(gcc_install_dir)/specs, the built-in specs aren't read, however by
214     # the same token anything from 'gcc -dumpspecs' is overridden by
215     # the contents of $(gcc_install_dir)/specs so the result is the
216     # same either way.
217     _gcc-specs-directive_raw() {
218 kevquinn 1.57 local cc=$(tc-getCC)
219     local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
220     ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
221 kevquinn 1.46 'BEGIN { pspec=""; spec=""; outside=1 }
222     $1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
223 kevquinn 1.41 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
224 kevquinn 1.46 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
225     { spec=spec $0 }
226     END { print spec }'
227     return 0
228 kevquinn 1.41 }
229    
230 kevquinn 1.68 # Return the requested gcc specs directive, with all included
231     # specs expanded.
232     # Note, it does not check for inclusion loops, which cause it
233     # to never finish - but such loops are invalid for gcc and we're
234     # assuming gcc is operational.
235     gcc-specs-directive() {
236     local directive subdname subdirective
237     directive="$(_gcc-specs-directive_raw $1)"
238     while [[ ${directive} == *%\(*\)* ]]; do
239     subdname=${directive/*%\(}
240     subdname=${subdname/\)*}
241     subdirective="$(_gcc-specs-directive_raw ${subdname})"
242     directive="${directive//\%(${subdname})/${subdirective}}"
243     done
244     echo "${directive}"
245     return 0
246     }
247    
248 kevquinn 1.41 # Returns true if gcc sets relro
249     gcc-specs-relro() {
250     local directive
251     directive=$(gcc-specs-directive link_command)
252     return $([[ ${directive/\{!norelro:} != ${directive} ]])
253     }
254     # Returns true if gcc sets now
255     gcc-specs-now() {
256     local directive
257     directive=$(gcc-specs-directive link_command)
258     return $([[ ${directive/\{!nonow:} != ${directive} ]])
259     }
260     # Returns true if gcc builds PIEs
261     gcc-specs-pie() {
262     local directive
263     directive=$(gcc-specs-directive cc1)
264     return $([[ ${directive/\{!nopie:} != ${directive} ]])
265     }
266     # Returns true if gcc builds with the stack protector
267     gcc-specs-ssp() {
268     local directive
269     directive=$(gcc-specs-directive cc1)
270     return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
271     }
272 kevquinn 1.46 # Returns true if gcc upgrades fstack-protector to fstack-protector-all
273     gcc-specs-ssp-to-all() {
274     local directive
275     directive=$(gcc-specs-directive cc1)
276     return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
277     }
278 vapier 1.60
279    
280     # This function generate linker scripts in /usr/lib for dynamic
281     # libs in /lib. This is to fix linking problems when you have
282     # the .so in /lib, and the .a in /usr/lib. What happens is that
283     # in some cases when linking dynamic, the .a in /usr/lib is used
284     # instead of the .so in /lib due to gcc/libtool tweaking ld's
285     # library search path. This cause many builds to fail.
286     # See bug #4411 for more info.
287     #
288     # To use, simply call:
289     #
290     # gen_usr_ldscript libfoo.so
291     #
292     # Note that you should in general use the unversioned name of
293     # the library, as ldconfig should usually update it correctly
294     # to point to the latest version of the library present.
295     _tc_gen_usr_ldscript() {
296     local lib libdir=$(get_libdir) output_format=""
297     # Just make sure it exists
298     dodir /usr/${libdir}
299    
300     # OUTPUT_FORMAT gives hints to the linker as to what binary format
301     # is referenced ... makes multilib saner
302     output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
303     [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
304    
305     for lib in "$@" ; do
306 vapier 1.62 if [[ ${USERLAND} == "Darwin" ]] ; then
307     ewarn "Not creating fake dynamic library for $lib on Darwin;"
308 grobian 1.61 ewarn "making a symlink instead."
309     dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
310     else
311     cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
312     /* GNU ld script
313     Since Gentoo has critical dynamic libraries
314     in /lib, and the static versions in /usr/lib,
315     we need to have a "fake" dynamic lib in /usr/lib,
316     otherwise we run into linking problems.
317    
318     See bug http://bugs.gentoo.org/4411 for more info.
319     */
320     ${output_format}
321     GROUP ( /${libdir}/${lib} )
322     END_LDSCRIPT
323     fi
324 vapier 1.60 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
325     done
326     }
327     gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

  ViewVC Help
Powered by ViewVC 1.1.20