/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2011 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.87 2009/03/01 08:09:44 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.112 2012/06/14 03:38:51 vapier Exp $
4 4
5# @ECLASS: toolchain-funcs.eclass 5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
8# @BLURB: functions to query common info about the toolchain 8# @BLURB: functions to query common info about the toolchain
11# for gleaning useful information about the toolchain and to simplify 11# for gleaning useful information about the toolchain and to simplify
12# ugly things like cross-compiling and multilib. All of this is done 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 13# in such a way that you can rely on the function always returning
14# something sane. 14# something sane.
15 15
16___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" 16if [[ ${___ECLASS_ONCE_TOOLCHAIN_FUNCS} != "recur -_+^+_- spank" ]] ; then
17[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib 17___ECLASS_ONCE_TOOLCHAIN_FUNCS="recur -_+^+_- spank"
18
19inherit multilib
18 20
19DESCRIPTION="Based on the ${ECLASS} eclass" 21DESCRIPTION="Based on the ${ECLASS} eclass"
20 22
23# tc-getPROG <VAR [search vars]> <default> [tuple]
21tc-getPROG() { 24_tc-getPROG() {
22 local var=$1 25 local tuple=$1
26 local v var vars=$2
23 local prog=$2 27 local prog=$3
24 28
25 if [[ -n ${!var} ]] ; then 29 var=${vars%% *}
26 echo "${!var}" 30 for v in ${vars} ; do
27 return 0
28 fi
29
30 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
35 export ${var}=${prog}
36 echo "${!var}"
37}
38
39# @FUNCTION: tc-getAR
40# @USAGE: [toolchain prefix]
41# @RETURN: name of the archiver
42tc-getAR() { tc-getPROG AR ar "$@"; }
43# @FUNCTION: tc-getAS
44# @USAGE: [toolchain prefix]
45# @RETURN: name of the assembler
46tc-getAS() { tc-getPROG AS as "$@"; }
47# @FUNCTION: tc-getCC
48# @USAGE: [toolchain prefix]
49# @RETURN: name of the C compiler
50tc-getCC() { tc-getPROG CC gcc "$@"; }
51# @FUNCTION: tc-getCPP
52# @USAGE: [toolchain prefix]
53# @RETURN: name of the C preprocessor
54tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55# @FUNCTION: tc-getCXX
56# @USAGE: [toolchain prefix]
57# @RETURN: name of the C++ compiler
58tc-getCXX() { tc-getPROG CXX g++ "$@"; }
59# @FUNCTION: tc-getLD
60# @USAGE: [toolchain prefix]
61# @RETURN: name of the linker
62tc-getLD() { tc-getPROG LD ld "$@"; }
63# @FUNCTION: tc-getSTRIP
64# @USAGE: [toolchain prefix]
65# @RETURN: name of the strip program
66tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67# @FUNCTION: tc-getNM
68# @USAGE: [toolchain prefix]
69# @RETURN: name of the symbol/object thingy
70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix]
73# @RETURN: name of the archiver indexer
74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getOBJCOPY
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the object copier
78tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
79# @FUNCTION: tc-getF77
80# @USAGE: [toolchain prefix]
81# @RETURN: name of the Fortran 77 compiler
82tc-getF77() { tc-getPROG F77 f77 "$@"; }
83# @FUNCTION: tc-getFC
84# @USAGE: [toolchain prefix]
85# @RETURN: name of the Fortran 90 compiler
86tc-getFC() { tc-getPROG FC gfortran "$@"; }
87# @FUNCTION: tc-getGCJ
88# @USAGE: [toolchain prefix]
89# @RETURN: name of the java compiler
90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91
92# @FUNCTION: tc-getBUILD_CC
93# @USAGE: [toolchain prefix]
94# @RETURN: name of the C compiler for building binaries to run on the build machine
95tc-getBUILD_CC() {
96 local v
97 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
98 if [[ -n ${!v} ]] ; then 31 if [[ -n ${!v} ]] ; then
99 export BUILD_CC=${!v} 32 export ${var}="${!v}"
100 echo "${!v}" 33 echo "${!v}"
101 return 0 34 return 0
102 fi 35 fi
103 done 36 done
104 37
105 local search= 38 local search=
106 if [[ -n ${CBUILD} ]] ; then 39 [[ -n $4 ]] && search=$(type -p "$4-${prog}")
107 search=$(type -p ${CBUILD}-gcc) 40 [[ -z ${search} && -n ${!tuple} ]] && search=$(type -p "${!tuple}-${prog}")
108 search=${search##*/} 41 [[ -n ${search} ]] && prog=${search##*/}
109 fi
110 search=${search:-gcc}
111 42
112 export BUILD_CC=${search} 43 export ${var}=${prog}
113 echo "${search}" 44 echo "${!var}"
114} 45}
46tc-getBUILD_PROG() { _tc-getPROG CBUILD "BUILD_$1 $1_FOR_BUILD HOST$1" "${@:2}"; }
47tc-getPROG() { _tc-getPROG CHOST "$@"; }
48
49# @FUNCTION: tc-getAR
50# @USAGE: [toolchain prefix]
51# @RETURN: name of the archiver
52tc-getAR() { tc-getPROG AR ar "$@"; }
53# @FUNCTION: tc-getAS
54# @USAGE: [toolchain prefix]
55# @RETURN: name of the assembler
56tc-getAS() { tc-getPROG AS as "$@"; }
57# @FUNCTION: tc-getCC
58# @USAGE: [toolchain prefix]
59# @RETURN: name of the C compiler
60tc-getCC() { tc-getPROG CC gcc "$@"; }
61# @FUNCTION: tc-getCPP
62# @USAGE: [toolchain prefix]
63# @RETURN: name of the C preprocessor
64tc-getCPP() { tc-getPROG CPP cpp "$@"; }
65# @FUNCTION: tc-getCXX
66# @USAGE: [toolchain prefix]
67# @RETURN: name of the C++ compiler
68tc-getCXX() { tc-getPROG CXX g++ "$@"; }
69# @FUNCTION: tc-getLD
70# @USAGE: [toolchain prefix]
71# @RETURN: name of the linker
72tc-getLD() { tc-getPROG LD ld "$@"; }
73# @FUNCTION: tc-getSTRIP
74# @USAGE: [toolchain prefix]
75# @RETURN: name of the strip program
76tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
77# @FUNCTION: tc-getNM
78# @USAGE: [toolchain prefix]
79# @RETURN: name of the symbol/object thingy
80tc-getNM() { tc-getPROG NM nm "$@"; }
81# @FUNCTION: tc-getRANLIB
82# @USAGE: [toolchain prefix]
83# @RETURN: name of the archiver indexer
84tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
85# @FUNCTION: tc-getOBJCOPY
86# @USAGE: [toolchain prefix]
87# @RETURN: name of the object copier
88tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
89# @FUNCTION: tc-getF77
90# @USAGE: [toolchain prefix]
91# @RETURN: name of the Fortran 77 compiler
92tc-getF77() { tc-getPROG F77 gfortran "$@"; }
93# @FUNCTION: tc-getFC
94# @USAGE: [toolchain prefix]
95# @RETURN: name of the Fortran 90 compiler
96tc-getFC() { tc-getPROG FC gfortran "$@"; }
97# @FUNCTION: tc-getGCJ
98# @USAGE: [toolchain prefix]
99# @RETURN: name of the java compiler
100tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
101# @FUNCTION: tc-getPKG_CONFIG
102# @USAGE: [toolchain prefix]
103# @RETURN: name of the pkg-config tool
104tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
105# @FUNCTION: tc-getRC
106# @USAGE: [toolchain prefix]
107# @RETURN: name of the Windows resource compiler
108tc-getRC() { tc-getPROG RC windres "$@"; }
109# @FUNCTION: tc-getDLLWRAP
110# @USAGE: [toolchain prefix]
111# @RETURN: name of the Windows dllwrap utility
112tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
113
114# @FUNCTION: tc-getBUILD_AR
115# @USAGE: [toolchain prefix]
116# @RETURN: name of the archiver for building binaries to run on the build machine
117tc-getBUILD_AR() { tc-getBUILD_PROG AR ar "$@"; }
118# @FUNCTION: tc-getBUILD_AS
119# @USAGE: [toolchain prefix]
120# @RETURN: name of the assembler for building binaries to run on the build machine
121tc-getBUILD_AS() { tc-getBUILD_PROG AS as "$@"; }
122# @FUNCTION: tc-getBUILD_CC
123# @USAGE: [toolchain prefix]
124# @RETURN: name of the C compiler for building binaries to run on the build machine
125tc-getBUILD_CC() { tc-getBUILD_PROG CC gcc "$@"; }
126# @FUNCTION: tc-getBUILD_CPP
127# @USAGE: [toolchain prefix]
128# @RETURN: name of the C preprocessor for building binaries to run on the build machine
129tc-getBUILD_CPP() { tc-getBUILD_PROG CPP cpp "$@"; }
130# @FUNCTION: tc-getBUILD_CXX
131# @USAGE: [toolchain prefix]
132# @RETURN: name of the C++ compiler for building binaries to run on the build machine
133tc-getBUILD_CXX() { tc-getBUILD_PROG CXX g++ "$@"; }
134# @FUNCTION: tc-getBUILD_LD
135# @USAGE: [toolchain prefix]
136# @RETURN: name of the linker for building binaries to run on the build machine
137tc-getBUILD_LD() { tc-getBUILD_PROG LD ld "$@"; }
138# @FUNCTION: tc-getBUILD_STRIP
139# @USAGE: [toolchain prefix]
140# @RETURN: name of the strip program for building binaries to run on the build machine
141tc-getBUILD_STRIP() { tc-getBUILD_PROG STRIP strip "$@"; }
142# @FUNCTION: tc-getBUILD_NM
143# @USAGE: [toolchain prefix]
144# @RETURN: name of the symbol/object thingy for building binaries to run on the build machine
145tc-getBUILD_NM() { tc-getBUILD_PROG NM nm "$@"; }
146# @FUNCTION: tc-getBUILD_RANLIB
147# @USAGE: [toolchain prefix]
148# @RETURN: name of the archiver indexer for building binaries to run on the build machine
149tc-getBUILD_RANLIB() { tc-getBUILD_PROG RANLIB ranlib "$@"; }
150# @FUNCTION: tc-getBUILD_OBJCOPY
151# @USAGE: [toolchain prefix]
152# @RETURN: name of the object copier for building binaries to run on the build machine
153tc-getBUILD_OBJCOPY() { tc-getBUILD_PROG OBJCOPY objcopy "$@"; }
154# @FUNCTION: tc-getBUILD_PKG_CONFIG
155# @USAGE: [toolchain prefix]
156# @RETURN: name of the pkg-config tool for building binaries to run on the build machine
157tc-getBUILD_PKG_CONFIG() { tc-getBUILD_PROG PKG_CONFIG pkg-config "$@"; }
115 158
116# @FUNCTION: tc-export 159# @FUNCTION: tc-export
117# @USAGE: <list of toolchain variables> 160# @USAGE: <list of toolchain variables>
118# @DESCRIPTION: 161# @DESCRIPTION:
119# Quick way to export a bunch of compiler vars at once. 162# Quick way to export a bunch of compiler vars at once.
134# @FUNCTION: tc-is-softfloat 177# @FUNCTION: tc-is-softfloat
135# @DESCRIPTION: 178# @DESCRIPTION:
136# See if this toolchain is a softfloat based one. 179# See if this toolchain is a softfloat based one.
137# @CODE 180# @CODE
138# The possible return values: 181# The possible return values:
139# - only: the target is always softfloat (never had fpu) 182# - only: the target is always softfloat (never had fpu)
140# - yes: the target should support softfloat 183# - yes: the target should support softfloat
184# - softfp: (arm specific) the target should use hardfloat insns, but softfloat calling convention
141# - no: the target should support hardfloat 185# - no: the target doesn't support softfloat
142# @CODE 186# @CODE
143# This allows us to react differently where packages accept 187# This allows us to react differently where packages accept
144# softfloat flags in the case where support is optional, but 188# softfloat flags in the case where support is optional, but
145# rejects softfloat flags where the target always lacks an fpu. 189# rejects softfloat flags where the target always lacks an fpu.
146tc-is-softfloat() { 190tc-is-softfloat() {
191 local CTARGET=${CTARGET:-${CHOST}}
147 case ${CTARGET} in 192 case ${CTARGET} in
148 bfin*|h8300*) 193 bfin*|h8300*)
149 echo "only" ;; 194 echo "only" ;;
150 *) 195 *)
151 [[ ${CTARGET//_/-} == *-softfloat-* ]] \ 196 if [[ ${CTARGET//_/-} == *-softfloat-* ]] ; then
152 && echo "yes" \ 197 echo "yes"
198 elif [[ ${CTARGET//_/-} == *-softfp-* ]] ; then
199 echo "softfp"
200 else
153 || echo "no" 201 echo "no"
202 fi
154 ;; 203 ;;
155 esac 204 esac
156} 205}
206
207# @FUNCTION: tc-is-static-only
208# @DESCRIPTION:
209# Return shell true if the target does not support shared libs, shell false
210# otherwise.
211tc-is-static-only() {
212 local host=${CTARGET:-${CHOST}}
213
214 # *MiNT doesn't have shared libraries, only platform so far
215 return $([[ ${host} == *-mint* ]])
216}
217
218# @FUNCTION: tc-export_build_env
219# @USAGE: [compiler variables]
220# @DESCRIPTION:
221# Export common build related compiler settings.
222tc-export_build_env() {
223 tc-export "$@"
224 : ${BUILD_CFLAGS:=-O1 -pipe}
225 : ${BUILD_CXXFLAGS:=-O1 -pipe}
226 : ${BUILD_CPPFLAGS:=}
227 : ${BUILD_LDFLAGS:=}
228 export BUILD_{C,CXX,CPP,LD}FLAGS
229}
230
231# @FUNCTION: tc-env_build
232# @USAGE: <command> [command args]
233# @INTERNAL
234# @DESCRIPTION:
235# Setup the compile environment to the build tools and then execute the
236# specified command. We use tc-getBUILD_XX here so that we work with
237# all of the semi-[non-]standard env vars like $BUILD_CC which often
238# the target build system does not check.
239tc-env_build() {
240 tc-export_build_env
241 CFLAGS=${BUILD_CFLAGS} \
242 CXXFLAGS=${BUILD_CXXFLAGS} \
243 CPPFLAGS=${BUILD_CPPFLAGS} \
244 LDFLAGS=${BUILD_LDFLAGS} \
245 AR=$(tc-getBUILD_AR) \
246 AS=$(tc-getBUILD_AS) \
247 CC=$(tc-getBUILD_CC) \
248 CPP=$(tc-getBUILD_CPP) \
249 CXX=$(tc-getBUILD_CXX) \
250 LD=$(tc-getBUILD_LD) \
251 NM=$(tc-getBUILD_NM) \
252 PKG_CONFIG=$(tc-getBUILD_PKG_CONFIG) \
253 RANLIB=$(tc-getBUILD_RANLIB) \
254 "$@"
255}
256
257# @FUNCTION: econf_build
258# @USAGE: [econf flags]
259# @DESCRIPTION:
260# Sometimes we need to locally build up some tools to run on CBUILD because
261# the package has helper utils which are compiled+executed when compiling.
262# This won't work when cross-compiling as the CHOST is set to a target which
263# we cannot natively execute.
264#
265# For example, the python package will build up a local python binary using
266# a portable build system (configure+make), but then use that binary to run
267# local python scripts to build up other components of the overall python.
268# We cannot rely on the python binary in $PATH as that often times will be
269# a different version, or not even installed in the first place. Instead,
270# we compile the code in a different directory to run on CBUILD, and then
271# use that binary when compiling the main package to run on CHOST.
272#
273# For example, with newer EAPIs, you'd do something like:
274# @CODE
275# src_configure() {
276# ECONF_SOURCE=${S}
277# if tc-is-cross-compiler ; then
278# mkdir "${WORKDIR}"/${CBUILD}
279# pushd "${WORKDIR}"/${CBUILD} >/dev/null
280# econf_build --disable-some-unused-stuff
281# popd >/dev/null
282# fi
283# ... normal build paths ...
284# }
285# src_compile() {
286# if tc-is-cross-compiler ; then
287# pushd "${WORKDIR}"/${CBUILD} >/dev/null
288# emake one-or-two-build-tools
289# ln/mv build-tools to normal build paths in ${S}/
290# popd >/dev/null
291# fi
292# ... normal build paths ...
293# }
294# @CODE
295econf_build() {
296 tc-env_build econf --build=${CBUILD:-${CHOST}} "$@"
297}
298
299# @FUNCTION: tc-has-openmp
300# @USAGE: [toolchain prefix]
301# @DESCRIPTION:
302# See if the toolchain supports OpenMP.
303tc-has-openmp() {
304 local base="${T}/test-tc-openmp"
305 cat <<-EOF > "${base}.c"
306 #include <omp.h>
307 int main() {
308 int nthreads, tid, ret = 0;
309 #pragma omp parallel private(nthreads, tid)
310 {
311 tid = omp_get_thread_num();
312 nthreads = omp_get_num_threads(); ret += tid + nthreads;
313 }
314 return ret;
315 }
316 EOF
317 $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
318 local ret=$?
319 rm -f "${base}"*
320 return ${ret}
321}
322
323# @FUNCTION: tc-has-tls
324# @USAGE: [-s|-c|-l] [toolchain prefix]
325# @DESCRIPTION:
326# See if the toolchain supports thread local storage (TLS). Use -s to test the
327# compiler, -c to also test the assembler, and -l to also test the C library
328# (the default).
329tc-has-tls() {
330 local base="${T}/test-tc-tls"
331 cat <<-EOF > "${base}.c"
332 int foo(int *i) {
333 static __thread int j = 0;
334 return *i ? j : *i;
335 }
336 EOF
337 local flags
338 case $1 in
339 -s) flags="-S";;
340 -c) flags="-c";;
341 -l) ;;
342 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
343 esac
344 : ${flags:=-fPIC -shared -Wl,-z,defs}
345 [[ $1 == -* ]] && shift
346 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
347 local ret=$?
348 rm -f "${base}"*
349 return ${ret}
350}
351
157 352
158# Parse information from CBUILD/CHOST/CTARGET rather than 353# Parse information from CBUILD/CHOST/CTARGET rather than
159# use external variables from the profile. 354# use external variables from the profile.
160tc-ninja_magic_to_arch() { 355tc-ninja_magic_to_arch() {
161ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 356ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
185 m68*) echo m68k;; 380 m68*) echo m68k;;
186 mips*) echo mips;; 381 mips*) echo mips;;
187 nios2*) echo nios2;; 382 nios2*) echo nios2;;
188 nios*) echo nios;; 383 nios*) echo nios;;
189 powerpc*) 384 powerpc*)
190 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees 385 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
191 # have been unified into simply 'powerpc', but until 2.6.16, 386 # have been unified into simply 'powerpc', but until 2.6.16,
192 # ppc32 is still using ARCH="ppc" as default 387 # ppc32 is still using ARCH="ppc" as default
193 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then 388 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] ; then
194 echo powerpc 389 echo powerpc
195 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then 390 elif [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] ; then
196 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 391 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
197 echo powerpc 392 echo powerpc
198 else 393 else
199 echo ppc 394 echo ppc
200 fi 395 fi
201 elif [[ ${host} == powerpc64* ]] ; then 396 elif [[ ${host} == powerpc64* ]] ; then
202 echo ppc64 397 echo ppc64
203 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 398 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
204 ninj ppc64 ppc 399 ninj ppc64 ppc
205 else 400 else
206 echo ppc 401 echo ppc
207 fi 402 fi
208 ;; 403 ;;
209 s390*) echo s390;; 404 s390*) echo s390;;
210 sh64*) ninj sh64 sh;; 405 sh64*) ninj sh64 sh;;
211 sh*) echo sh;; 406 sh*) echo sh;;
212 sparc64*) ninj sparc64 sparc;; 407 sparc64*) ninj sparc64 sparc;;
213 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 408 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
214 && ninj sparc64 sparc \ 409 && ninj sparc64 sparc \
215 || echo sparc 410 || echo sparc
216 ;; 411 ;;
217 vax*) echo vax;; 412 vax*) echo vax;;
413 x86_64*freebsd*) echo amd64;;
218 x86_64*) 414 x86_64*)
219 # Starting with linux-2.6.24, the 'x86_64' and 'i386' 415 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
220 # trees have been unified into 'x86'. 416 # trees have been unified into 'x86'.
221 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then 417 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
222 echo x86 418 echo x86
268 x86_64*) echo little;; 464 x86_64*) echo little;;
269 *) echo wtf;; 465 *) echo wtf;;
270 esac 466 esac
271} 467}
272 468
469# Internal func. The first argument is the version info to expand.
470# Query the preprocessor to improve compatibility across different
471# compilers rather than maintaining a --version flag matrix. #335943
472_gcc_fullversion() {
473 local ver="$1"; shift
474 set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"`
475 eval echo "$ver"
476}
477
273# @FUNCTION: gcc-fullversion 478# @FUNCTION: gcc-fullversion
274# @RETURN: compiler version (major.minor.micro: [3.4.6]) 479# @RETURN: compiler version (major.minor.micro: [3.4.6])
275gcc-fullversion() { 480gcc-fullversion() {
276 $(tc-getCC "$@") -dumpversion 481 _gcc_fullversion '$1.$2.$3' "$@"
277} 482}
278# @FUNCTION: gcc-version 483# @FUNCTION: gcc-version
279# @RETURN: compiler version (major.minor: [3.4].6) 484# @RETURN: compiler version (major.minor: [3.4].6)
280gcc-version() { 485gcc-version() {
281 gcc-fullversion "$@" | cut -f1,2 -d. 486 _gcc_fullversion '$1.$2' "$@"
282} 487}
283# @FUNCTION: gcc-major-version 488# @FUNCTION: gcc-major-version
284# @RETURN: major compiler version (major: [3].4.6) 489# @RETURN: major compiler version (major: [3].4.6)
285gcc-major-version() { 490gcc-major-version() {
286 gcc-version "$@" | cut -f1 -d. 491 _gcc_fullversion '$1' "$@"
287} 492}
288# @FUNCTION: gcc-minor-version 493# @FUNCTION: gcc-minor-version
289# @RETURN: minor compiler version (minor: 3.[4].6) 494# @RETURN: minor compiler version (minor: 3.[4].6)
290gcc-minor-version() { 495gcc-minor-version() {
291 gcc-version "$@" | cut -f2 -d. 496 _gcc_fullversion '$2' "$@"
292} 497}
293# @FUNCTION: gcc-micro-version 498# @FUNCTION: gcc-micro-version
294# @RETURN: micro compiler version (micro: 3.4.[6]) 499# @RETURN: micro compiler version (micro: 3.4.[6])
295gcc-micro-version() { 500gcc-micro-version() {
296 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 501 _gcc_fullversion '$3' "$@"
297} 502}
298 503
299# Returns the installation directory - internal toolchain 504# Returns the installation directory - internal toolchain
300# function for use by _gcc-specs-exists (for flag-o-matic). 505# function for use by _gcc-specs-exists (for flag-o-matic).
301_gcc-install-dir() { 506_gcc-install-dir() {
401# Note that you should in general use the unversioned name of 606# Note that you should in general use the unversioned name of
402# the library (libfoo.so), as ldconfig should usually update it 607# the library (libfoo.so), as ldconfig should usually update it
403# correctly to point to the latest version of the library present. 608# correctly to point to the latest version of the library present.
404gen_usr_ldscript() { 609gen_usr_ldscript() {
405 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname) 610 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
611 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
612
613 tc-is-static-only && return
614
406 # Just make sure it exists 615 # Just make sure it exists
407 dodir /usr/${libdir} 616 dodir /usr/${libdir}
408 617
409 if [[ $1 == "-a" ]] ; then 618 if [[ $1 == "-a" ]] ; then
410 auto=true 619 auto=true
416 # is referenced ... makes multilib saner 625 # is referenced ... makes multilib saner
417 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 626 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} )" 627 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
419 628
420 for lib in "$@" ; do 629 for lib in "$@" ; do
421 if [[ ${USERLAND} == "Darwin" ]] ; then 630 local tlib
422 ewarn "Not creating fake dynamic library for $lib on Darwin;" 631 if ${auto} ; then
423 ewarn "making a symlink instead." 632 lib="lib${lib}${suffix}"
424 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
425 else 633 else
426 local tlib 634 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
635 # This especially is for AIX where $(get_libname) can return ".a",
636 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
637 [[ -r ${ED}/${libdir}/${lib} ]] || continue
638 #TODO: better die here?
639 fi
640
641 case ${CTARGET:-${CHOST}} in
642 *-darwin*)
427 if ${auto} ; then 643 if ${auto} ; then
428 lib="lib${lib}${suffix}" 644 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
429 mv "${D}"/usr/${libdir}/${lib}* "${D}"/${libdir}/ || die 645 else
430 tlib=$(scanelf -qF'%S#F' "${D}"/${libdir}/${lib}) 646 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
647 fi
431 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}" 648 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
649 tlib=${tlib##*/}
650
651 if ${auto} ; then
652 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
653 # some install_names are funky: they encode a version
654 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
655 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
656 fi
432 rm -f "${D}"/${libdir}/${lib} 657 rm -f "${ED}"/${libdir}/${lib}
658 fi
659
660 # Mach-O files have an id, which is like a soname, it tells how
661 # another object linking against this lib should reference it.
662 # Since we moved the lib from usr/lib into lib this reference is
663 # wrong. Hence, we update it here. We don't configure with
664 # libdir=/lib because that messes up libtool files.
665 # Make sure we don't lose the specific version, so just modify the
666 # existing install_name
667 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
668 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
669 local nowrite=yes
670 fi
671 install_name_tool \
672 -id "${EPREFIX}"/${libdir}/${tlib} \
673 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
674 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
675 # Now as we don't use GNU binutils and our linker doesn't
676 # understand linker scripts, just create a symlink.
677 pushd "${ED}/usr/${libdir}" > /dev/null
678 ln -snf "../../${libdir}/${tlib}" "${lib}"
679 popd > /dev/null
680 ;;
681 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
682 if ${auto} ; then
683 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
684 # no way to retrieve soname on these platforms (?)
685 tlib=$(readlink "${ED}"/${libdir}/${lib})
686 tlib=${tlib##*/}
687 if [[ -z ${tlib} ]] ; then
688 # ok, apparently was not a symlink, don't remove it and
689 # just link to it
690 tlib=${lib}
691 else
692 rm -f "${ED}"/${libdir}/${lib}
693 fi
433 else 694 else
434 tlib=${lib} 695 tlib=${lib}
435 fi 696 fi
697
698 # we don't have GNU binutils on these platforms, so we symlink
699 # instead, which seems to work fine. Keep it relative, otherwise
700 # we break some QA checks in Portage
701 # on interix, the linker scripts would work fine in _most_
702 # situations. if a library links to such a linker script the
703 # absolute path to the correct library is inserted into the binary,
704 # which is wrong, since anybody linking _without_ libtool will miss
705 # some dependencies, since the stupid linker cannot find libraries
706 # hardcoded with absolute paths (as opposed to the loader, which
707 # seems to be able to do this).
708 # this has been seen while building shared-mime-info which needs
709 # libxml2, but links without libtool (and does not add libz to the
710 # command line by itself).
711 pushd "${ED}/usr/${libdir}" > /dev/null
712 ln -snf "../../${libdir}/${tlib}" "${lib}"
713 popd > /dev/null
714 ;;
715 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
716 if ${auto} ; then
717 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
718 [[ -z ${tlib} ]] && tlib=${lib}
719 tlib=${tlib##*/} # 'internal name' can have a path component
720 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
721 # some SONAMEs are funky: they encode a version before the .so
722 if [[ ${tlib} != ${lib}* ]] ; then
723 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
724 fi
725 [[ ${tlib} != ${lib} ]] &&
726 rm -f "${ED}"/${libdir}/${lib}
727 else
728 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
729 [[ -z ${tlib} ]] && tlib=${lib}
730 tlib=${tlib##*/} # 'internal name' can have a path component
731 fi
732 pushd "${ED}"/usr/${libdir} >/dev/null
733 ln -snf "../../${libdir}/${tlib}" "${lib}"
734 # need the internal name in usr/lib too, to be available at runtime
735 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
736 [[ ${tlib} != ${lib} ]] &&
737 ln -snf "../../${libdir}/${tlib}" "${tlib}"
738 popd >/dev/null
739 ;;
740 *)
741 if ${auto} ; then
742 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
743 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
744 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
745 # some SONAMEs are funky: they encode a version before the .so
746 if [[ ${tlib} != ${lib}* ]] ; then
747 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
748 fi
749 rm -f "${ED}"/${libdir}/${lib}
750 else
751 tlib=${lib}
752 fi
436 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 753 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
437 /* GNU ld script 754 /* GNU ld script
438 Since Gentoo has critical dynamic libraries in /lib, and the static versions 755 Since Gentoo has critical dynamic libraries in /lib, and the static versions
439 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we 756 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
440 run into linking problems. This "fake" dynamic lib is a linker script that 757 run into linking problems. This "fake" dynamic lib is a linker script that
441 redirects the linker to the real lib. And yes, this works in the cross- 758 redirects the linker to the real lib. And yes, this works in the cross-
442 compiling scenario as the sysroot-ed linker will prepend the real path. 759 compiling scenario as the sysroot-ed linker will prepend the real path.
443 760
444 See bug http://bugs.gentoo.org/4411 for more info. 761 See bug http://bugs.gentoo.org/4411 for more info.
445 */ 762 */
446 ${output_format} 763 ${output_format}
447 GROUP ( /${libdir}/${tlib} ) 764 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
448 END_LDSCRIPT 765 END_LDSCRIPT
766 ;;
767 esac
449 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 768 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
450 fi
451 done 769 done
452} 770}
771
772fi

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