/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2014 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 1.69 2007/03/27 01:46:50 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.126 2014/01/17 03:46:31 vapier Exp $
4# 4
5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER:
5# Maintainer: Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
6# 8# @BLURB: functions to query common info about the toolchain
7# This eclass contains (or should) functions to get common info 9# @DESCRIPTION:
8# about the toolchain (libc/compiler/binutils/etc...) 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.
9 15
10___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" 16if [[ ${___ECLASS_ONCE_TOOLCHAIN_FUNCS} != "recur -_+^+_- spank" ]] ; then
11[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib 17___ECLASS_ONCE_TOOLCHAIN_FUNCS="recur -_+^+_- spank"
12 18
13DESCRIPTION="Based on the ${ECLASS} eclass" 19inherit multilib
14 20
21# tc-getPROG <VAR [search vars]> <default> [tuple]
15tc-getPROG() { 22_tc-getPROG() {
16 local var=$1 23 local tuple=$1
24 local v var vars=$2
17 local prog=$2 25 local prog=$3
18 26
19 if [[ -n ${!var} ]] ; then 27 var=${vars%% *}
20 echo "${!var}" 28 for v in ${vars} ; do
21 return 0
22 fi
23
24 local search=
25 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
26 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
27 [[ -n ${search} ]] && prog=${search##*/}
28
29 export ${var}=${prog}
30 echo "${!var}"
31}
32
33# Returns the name of the archiver
34tc-getAR() { tc-getPROG AR ar "$@"; }
35# Returns the name of the assembler
36tc-getAS() { tc-getPROG AS as "$@"; }
37# Returns the name of the C compiler
38tc-getCC() { tc-getPROG CC gcc "$@"; }
39# Returns the name of the C preprocessor
40tc-getCPP() { tc-getPROG CPP cpp "$@"; }
41# Returns the name of the C++ compiler
42tc-getCXX() { tc-getPROG CXX g++ "$@"; }
43# Returns the name of the linker
44tc-getLD() { tc-getPROG LD ld "$@"; }
45# Returns the name of the strip prog
46tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
47# Returns the name of the symbol/object thingy
48tc-getNM() { tc-getPROG NM nm "$@"; }
49# Returns the name of the archiver indexer
50tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
51# Returns the name of the fortran 77 compiler
52tc-getF77() { tc-getPROG F77 f77 "$@"; }
53# Returns the name of the fortran 90 compiler
54tc-getF90() { tc-getPROG F90 gfortran "$@"; }
55# Returns the name of the fortran compiler
56tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; }
57# Returns the name of the java compiler
58tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
59
60# Returns the name of the C compiler for build
61tc-getBUILD_CC() {
62 local v
63 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
64 if [[ -n ${!v} ]] ; then 29 if [[ -n ${!v} ]] ; then
65 export BUILD_CC=${!v} 30 export ${var}="${!v}"
66 echo "${!v}" 31 echo "${!v}"
67 return 0 32 return 0
68 fi 33 fi
69 done 34 done
70 35
71 local search= 36 local search=
72 if [[ -n ${CBUILD} ]] ; then 37 [[ -n $4 ]] && search=$(type -p "$4-${prog}")
73 search=$(type -p ${CBUILD}-gcc) 38 [[ -z ${search} && -n ${!tuple} ]] && search=$(type -p "${!tuple}-${prog}")
74 search=${search##*/} 39 [[ -n ${search} ]] && prog=${search##*/}
75 fi
76 search=${search:-gcc}
77 40
78 export BUILD_CC=${search} 41 export ${var}=${prog}
79 echo "${search}" 42 echo "${!var}"
80} 43}
44tc-getBUILD_PROG() { _tc-getPROG CBUILD "BUILD_$1 $1_FOR_BUILD HOST$1" "${@:2}"; }
45tc-getPROG() { _tc-getPROG CHOST "$@"; }
81 46
47# @FUNCTION: tc-getAR
48# @USAGE: [toolchain prefix]
49# @RETURN: name of the archiver
50tc-getAR() { tc-getPROG AR ar "$@"; }
51# @FUNCTION: tc-getAS
52# @USAGE: [toolchain prefix]
53# @RETURN: name of the assembler
54tc-getAS() { tc-getPROG AS as "$@"; }
55# @FUNCTION: tc-getCC
56# @USAGE: [toolchain prefix]
57# @RETURN: name of the C compiler
58tc-getCC() { tc-getPROG CC gcc "$@"; }
59# @FUNCTION: tc-getCPP
60# @USAGE: [toolchain prefix]
61# @RETURN: name of the C preprocessor
62tc-getCPP() { tc-getPROG CPP cpp "$@"; }
63# @FUNCTION: tc-getCXX
64# @USAGE: [toolchain prefix]
65# @RETURN: name of the C++ compiler
66tc-getCXX() { tc-getPROG CXX g++ "$@"; }
67# @FUNCTION: tc-getLD
68# @USAGE: [toolchain prefix]
69# @RETURN: name of the linker
70tc-getLD() { tc-getPROG LD ld "$@"; }
71# @FUNCTION: tc-getSTRIP
72# @USAGE: [toolchain prefix]
73# @RETURN: name of the strip program
74tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
75# @FUNCTION: tc-getNM
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the symbol/object thingy
78tc-getNM() { tc-getPROG NM nm "$@"; }
79# @FUNCTION: tc-getRANLIB
80# @USAGE: [toolchain prefix]
81# @RETURN: name of the archiver indexer
82tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
83# @FUNCTION: tc-getOBJCOPY
84# @USAGE: [toolchain prefix]
85# @RETURN: name of the object copier
86tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
87# @FUNCTION: tc-getF77
88# @USAGE: [toolchain prefix]
89# @RETURN: name of the Fortran 77 compiler
90tc-getF77() { tc-getPROG F77 gfortran "$@"; }
91# @FUNCTION: tc-getFC
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the Fortran 90 compiler
94tc-getFC() { tc-getPROG FC gfortran "$@"; }
95# @FUNCTION: tc-getGCJ
96# @USAGE: [toolchain prefix]
97# @RETURN: name of the java compiler
98tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
99# @FUNCTION: tc-getPKG_CONFIG
100# @USAGE: [toolchain prefix]
101# @RETURN: name of the pkg-config tool
102tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
103# @FUNCTION: tc-getRC
104# @USAGE: [toolchain prefix]
105# @RETURN: name of the Windows resource compiler
106tc-getRC() { tc-getPROG RC windres "$@"; }
107# @FUNCTION: tc-getDLLWRAP
108# @USAGE: [toolchain prefix]
109# @RETURN: name of the Windows dllwrap utility
110tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
111
112# @FUNCTION: tc-getBUILD_AR
113# @USAGE: [toolchain prefix]
114# @RETURN: name of the archiver for building binaries to run on the build machine
115tc-getBUILD_AR() { tc-getBUILD_PROG AR ar "$@"; }
116# @FUNCTION: tc-getBUILD_AS
117# @USAGE: [toolchain prefix]
118# @RETURN: name of the assembler for building binaries to run on the build machine
119tc-getBUILD_AS() { tc-getBUILD_PROG AS as "$@"; }
120# @FUNCTION: tc-getBUILD_CC
121# @USAGE: [toolchain prefix]
122# @RETURN: name of the C compiler for building binaries to run on the build machine
123tc-getBUILD_CC() { tc-getBUILD_PROG CC gcc "$@"; }
124# @FUNCTION: tc-getBUILD_CPP
125# @USAGE: [toolchain prefix]
126# @RETURN: name of the C preprocessor for building binaries to run on the build machine
127tc-getBUILD_CPP() { tc-getBUILD_PROG CPP cpp "$@"; }
128# @FUNCTION: tc-getBUILD_CXX
129# @USAGE: [toolchain prefix]
130# @RETURN: name of the C++ compiler for building binaries to run on the build machine
131tc-getBUILD_CXX() { tc-getBUILD_PROG CXX g++ "$@"; }
132# @FUNCTION: tc-getBUILD_LD
133# @USAGE: [toolchain prefix]
134# @RETURN: name of the linker for building binaries to run on the build machine
135tc-getBUILD_LD() { tc-getBUILD_PROG LD ld "$@"; }
136# @FUNCTION: tc-getBUILD_STRIP
137# @USAGE: [toolchain prefix]
138# @RETURN: name of the strip program for building binaries to run on the build machine
139tc-getBUILD_STRIP() { tc-getBUILD_PROG STRIP strip "$@"; }
140# @FUNCTION: tc-getBUILD_NM
141# @USAGE: [toolchain prefix]
142# @RETURN: name of the symbol/object thingy for building binaries to run on the build machine
143tc-getBUILD_NM() { tc-getBUILD_PROG NM nm "$@"; }
144# @FUNCTION: tc-getBUILD_RANLIB
145# @USAGE: [toolchain prefix]
146# @RETURN: name of the archiver indexer for building binaries to run on the build machine
147tc-getBUILD_RANLIB() { tc-getBUILD_PROG RANLIB ranlib "$@"; }
148# @FUNCTION: tc-getBUILD_OBJCOPY
149# @USAGE: [toolchain prefix]
150# @RETURN: name of the object copier for building binaries to run on the build machine
151tc-getBUILD_OBJCOPY() { tc-getBUILD_PROG OBJCOPY objcopy "$@"; }
152# @FUNCTION: tc-getBUILD_PKG_CONFIG
153# @USAGE: [toolchain prefix]
154# @RETURN: name of the pkg-config tool for building binaries to run on the build machine
155tc-getBUILD_PKG_CONFIG() { tc-getBUILD_PROG PKG_CONFIG pkg-config "$@"; }
156
157# @FUNCTION: tc-export
158# @USAGE: <list of toolchain variables>
159# @DESCRIPTION:
82# Quick way to export a bunch of vars at once 160# Quick way to export a bunch of compiler vars at once.
83tc-export() { 161tc-export() {
84 local var 162 local var
85 for var in "$@" ; do 163 for var in "$@" ; do
164 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
86 eval tc-get${var} > /dev/null 165 eval tc-get${var} > /dev/null
87 done 166 done
88} 167}
89 168
90# A simple way to see if we're using a cross-compiler ... 169# @FUNCTION: tc-is-cross-compiler
170# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
91tc-is-cross-compiler() { 171tc-is-cross-compiler() {
92 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 172 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
93} 173}
94 174
175# @FUNCTION: tc-is-softfloat
176# @DESCRIPTION:
95# See if this toolchain is a softfloat based one. 177# See if this toolchain is a softfloat based one.
178# @CODE
96# The possible return values: 179# The possible return values:
97# - only: the target is always softfloat (never had fpu) 180# - only: the target is always softfloat (never had fpu)
98# - yes: the target should support softfloat 181# - yes: the target should support softfloat
182# - softfp: (arm specific) the target should use hardfloat insns, but softfloat calling convention
99# - no: the target should support hardfloat 183# - no: the target doesn't support softfloat
184# @CODE
100# This allows us to react differently where packages accept 185# This allows us to react differently where packages accept
101# softfloat flags in the case where support is optional, but 186# softfloat flags in the case where support is optional, but
102# rejects softfloat flags where the target always lacks an fpu. 187# rejects softfloat flags where the target always lacks an fpu.
103tc-is-softfloat() { 188tc-is-softfloat() {
189 local CTARGET=${CTARGET:-${CHOST}}
104 case ${CTARGET} in 190 case ${CTARGET} in
105 bfin*|h8300*) 191 bfin*|h8300*)
106 echo "only" ;; 192 echo "only" ;;
107 *) 193 *)
108 [[ ${CTARGET//_/-} == *-softfloat-* ]] \ 194 if [[ ${CTARGET//_/-} == *-softfloat-* ]] ; then
109 && echo "yes" \ 195 echo "yes"
196 elif [[ ${CTARGET//_/-} == *-softfp-* ]] ; then
197 echo "softfp"
198 else
110 || echo "no" 199 echo "no"
200 fi
111 ;; 201 ;;
112 esac 202 esac
113} 203}
204
205# @FUNCTION: tc-is-static-only
206# @DESCRIPTION:
207# Return shell true if the target does not support shared libs, shell false
208# otherwise.
209tc-is-static-only() {
210 local host=${CTARGET:-${CHOST}}
211
212 # *MiNT doesn't have shared libraries, only platform so far
213 return $([[ ${host} == *-mint* ]])
214}
215
216# @FUNCTION: tc-export_build_env
217# @USAGE: [compiler variables]
218# @DESCRIPTION:
219# Export common build related compiler settings.
220tc-export_build_env() {
221 tc-export "$@"
222 : ${BUILD_CFLAGS:=-O1 -pipe}
223 : ${BUILD_CXXFLAGS:=-O1 -pipe}
224 : ${BUILD_CPPFLAGS:=}
225 : ${BUILD_LDFLAGS:=}
226 export BUILD_{C,CXX,CPP,LD}FLAGS
227
228 # Some packages use XXX_FOR_BUILD.
229 local v
230 for v in BUILD_{C,CXX,CPP,LD}FLAGS ; do
231 export ${v#BUILD_}_FOR_BUILD="${!v}"
232 done
233}
234
235# @FUNCTION: tc-env_build
236# @USAGE: <command> [command args]
237# @INTERNAL
238# @DESCRIPTION:
239# Setup the compile environment to the build tools and then execute the
240# specified command. We use tc-getBUILD_XX here so that we work with
241# all of the semi-[non-]standard env vars like $BUILD_CC which often
242# the target build system does not check.
243tc-env_build() {
244 tc-export_build_env
245 CFLAGS=${BUILD_CFLAGS} \
246 CXXFLAGS=${BUILD_CXXFLAGS} \
247 CPPFLAGS=${BUILD_CPPFLAGS} \
248 LDFLAGS=${BUILD_LDFLAGS} \
249 AR=$(tc-getBUILD_AR) \
250 AS=$(tc-getBUILD_AS) \
251 CC=$(tc-getBUILD_CC) \
252 CPP=$(tc-getBUILD_CPP) \
253 CXX=$(tc-getBUILD_CXX) \
254 LD=$(tc-getBUILD_LD) \
255 NM=$(tc-getBUILD_NM) \
256 PKG_CONFIG=$(tc-getBUILD_PKG_CONFIG) \
257 RANLIB=$(tc-getBUILD_RANLIB) \
258 "$@"
259}
260
261# @FUNCTION: econf_build
262# @USAGE: [econf flags]
263# @DESCRIPTION:
264# Sometimes we need to locally build up some tools to run on CBUILD because
265# the package has helper utils which are compiled+executed when compiling.
266# This won't work when cross-compiling as the CHOST is set to a target which
267# we cannot natively execute.
268#
269# For example, the python package will build up a local python binary using
270# a portable build system (configure+make), but then use that binary to run
271# local python scripts to build up other components of the overall python.
272# We cannot rely on the python binary in $PATH as that often times will be
273# a different version, or not even installed in the first place. Instead,
274# we compile the code in a different directory to run on CBUILD, and then
275# use that binary when compiling the main package to run on CHOST.
276#
277# For example, with newer EAPIs, you'd do something like:
278# @CODE
279# src_configure() {
280# ECONF_SOURCE=${S}
281# if tc-is-cross-compiler ; then
282# mkdir "${WORKDIR}"/${CBUILD}
283# pushd "${WORKDIR}"/${CBUILD} >/dev/null
284# econf_build --disable-some-unused-stuff
285# popd >/dev/null
286# fi
287# ... normal build paths ...
288# }
289# src_compile() {
290# if tc-is-cross-compiler ; then
291# pushd "${WORKDIR}"/${CBUILD} >/dev/null
292# emake one-or-two-build-tools
293# ln/mv build-tools to normal build paths in ${S}/
294# popd >/dev/null
295# fi
296# ... normal build paths ...
297# }
298# @CODE
299econf_build() {
300 tc-env_build econf --build=${CBUILD:-${CHOST}} "$@"
301}
302
303# @FUNCTION: tc-has-openmp
304# @USAGE: [toolchain prefix]
305# @DESCRIPTION:
306# See if the toolchain supports OpenMP.
307tc-has-openmp() {
308 local base="${T}/test-tc-openmp"
309 cat <<-EOF > "${base}.c"
310 #include <omp.h>
311 int main() {
312 int nthreads, tid, ret = 0;
313 #pragma omp parallel private(nthreads, tid)
314 {
315 tid = omp_get_thread_num();
316 nthreads = omp_get_num_threads(); ret += tid + nthreads;
317 }
318 return ret;
319 }
320 EOF
321 $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
322 local ret=$?
323 rm -f "${base}"*
324 return ${ret}
325}
326
327# @FUNCTION: tc-has-tls
328# @USAGE: [-s|-c|-l] [toolchain prefix]
329# @DESCRIPTION:
330# See if the toolchain supports thread local storage (TLS). Use -s to test the
331# compiler, -c to also test the assembler, and -l to also test the C library
332# (the default).
333tc-has-tls() {
334 local base="${T}/test-tc-tls"
335 cat <<-EOF > "${base}.c"
336 int foo(int *i) {
337 static __thread int j = 0;
338 return *i ? j : *i;
339 }
340 EOF
341 local flags
342 case $1 in
343 -s) flags="-S";;
344 -c) flags="-c";;
345 -l) ;;
346 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
347 esac
348 : ${flags:=-fPIC -shared -Wl,-z,defs}
349 [[ $1 == -* ]] && shift
350 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
351 local ret=$?
352 rm -f "${base}"*
353 return ${ret}
354}
355
114 356
115# Parse information from CBUILD/CHOST/CTARGET rather than 357# Parse information from CBUILD/CHOST/CTARGET rather than
116# use external variables from the profile. 358# use external variables from the profile.
117tc-ninja_magic_to_arch() { 359tc-ninja_magic_to_arch() {
118ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 360ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
119 361
120 local type=$1 362 local type=$1
121 local host=$2 363 local host=$2
122 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 364 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
123 365
366 local KV=${KV:-${KV_FULL}}
367 [[ ${type} == "kern" ]] && [[ -z ${KV} ]] && \
368 ewarn "QA: Kernel version could not be determined, please inherit kernel-2 or linux-info"
369
124 case ${host} in 370 case ${host} in
371 aarch64*) echo arm64;;
125 alpha*) echo alpha;; 372 alpha*) echo alpha;;
126 arm*) echo arm;; 373 arm*) echo arm;;
374 avr*) ninj avr32 avr;;
127 bfin*) ninj blackfin bfin;; 375 bfin*) ninj blackfin bfin;;
376 c6x) echo c6x;;
128 cris*) echo cris;; 377 cris*) echo cris;;
378 frv) echo frv;;
379 hexagon) echo hexagon;;
129 hppa*) ninj parisc hppa;; 380 hppa*) ninj parisc hppa;;
130 i?86*) ninj i386 x86;; 381 i?86*)
382 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
383 # trees have been unified into 'x86'.
384 # FreeBSD still uses i386
385 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
386 echo i386
387 else
388 echo x86
389 fi
390 ;;
131 ia64*) echo ia64;; 391 ia64*) echo ia64;;
132 m68*) echo m68k;; 392 m68*) echo m68k;;
393 metag) echo metag;;
133 mips*) echo mips;; 394 mips*) echo mips;;
134 nios2*) echo nios2;; 395 nios2*) echo nios2;;
135 nios*) echo nios;; 396 nios*) echo nios;;
397 or32) echo openrisc;;
136 powerpc*) 398 powerpc*)
137 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees 399 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
138 # have been unified into simply 'powerpc', but until 2.6.16, 400 # have been unified into simply 'powerpc', but until 2.6.16,
139 # ppc32 is still using ARCH="ppc" as default 401 # ppc32 is still using ARCH="ppc" as default
140 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then 402 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] ; then
141 echo powerpc 403 echo powerpc
142 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then 404 elif [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] ; then
143 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 405 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
144 echo powerpc 406 echo powerpc
145 else 407 else
146 echo ppc 408 echo ppc
147 fi 409 fi
148 elif [[ ${host} == powerpc64* ]] ; then 410 elif [[ ${host} == powerpc64* ]] ; then
149 echo ppc64 411 echo ppc64
150 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 412 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
151 ninj ppc64 ppc 413 ninj ppc64 ppc
152 else 414 else
153 echo ppc 415 echo ppc
154 fi 416 fi
155 ;; 417 ;;
156 s390*) echo s390;; 418 s390*) echo s390;;
419 score) echo score;;
157 sh64*) ninj sh64 sh;; 420 sh64*) ninj sh64 sh;;
158 sh*) echo sh;; 421 sh*) echo sh;;
159 sparc64*) ninj sparc64 sparc;; 422 sparc64*) ninj sparc64 sparc;;
160 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 423 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
161 && ninj sparc64 sparc \ 424 && ninj sparc64 sparc \
162 || echo sparc 425 || echo sparc
163 ;; 426 ;;
427 tile*) echo tile;;
164 vax*) echo vax;; 428 vax*) echo vax;;
165 x86_64*) ninj x86_64 amd64;; 429 x86_64*freebsd*) echo amd64;;
166 *) echo ${ARCH};; 430 x86_64*)
431 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
432 # trees have been unified into 'x86'.
433 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
434 echo x86
435 else
436 ninj x86_64 amd64
437 fi
438 ;;
439 xtensa*) echo xtensa;;
440
441 # since our usage of tc-arch is largely concerned with
442 # normalizing inputs for testing ${CTARGET}, let's filter
443 # other cross targets (mingw and such) into the unknown.
444 *) echo unknown;;
167 esac 445 esac
168} 446}
447# @FUNCTION: tc-arch-kernel
448# @USAGE: [toolchain prefix]
449# @RETURN: name of the kernel arch according to the compiler target
169tc-arch-kernel() { 450tc-arch-kernel() {
170 tc-ninja_magic_to_arch kern $@ 451 tc-ninja_magic_to_arch kern "$@"
171} 452}
453# @FUNCTION: tc-arch
454# @USAGE: [toolchain prefix]
455# @RETURN: name of the portage arch according to the compiler target
172tc-arch() { 456tc-arch() {
173 tc-ninja_magic_to_arch portage $@ 457 tc-ninja_magic_to_arch portage "$@"
174} 458}
175 459
176# Returns the version as by `$CC -dumpversion` 460tc-endian() {
461 local host=$1
462 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
463 host=${host%%-*}
464
465 case ${host} in
466 aarch64*be) echo big;;
467 aarch64) echo little;;
468 alpha*) echo big;;
469 arm*b*) echo big;;
470 arm*) echo little;;
471 cris*) echo little;;
472 hppa*) echo big;;
473 i?86*) echo little;;
474 ia64*) echo little;;
475 m68*) echo big;;
476 mips*l*) echo little;;
477 mips*) echo big;;
478 powerpc*le) echo little;;
479 powerpc*) echo big;;
480 s390*) echo big;;
481 sh*b*) echo big;;
482 sh*) echo little;;
483 sparc*) echo big;;
484 x86_64*) echo little;;
485 *) echo wtf;;
486 esac
487}
488
489# Internal func. The first argument is the version info to expand.
490# Query the preprocessor to improve compatibility across different
491# compilers rather than maintaining a --version flag matrix. #335943
492_gcc_fullversion() {
493 local ver="$1"; shift
494 set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"`
495 eval echo "$ver"
496}
497
498# @FUNCTION: gcc-fullversion
499# @RETURN: compiler version (major.minor.micro: [3.4.6])
177gcc-fullversion() { 500gcc-fullversion() {
178 $(tc-getCC "$@") -dumpversion 501 _gcc_fullversion '$1.$2.$3' "$@"
179} 502}
180# Returns the version, but only the <major>.<minor> 503# @FUNCTION: gcc-version
504# @RETURN: compiler version (major.minor: [3.4].6)
181gcc-version() { 505gcc-version() {
182 gcc-fullversion "$@" | cut -f1,2 -d. 506 _gcc_fullversion '$1.$2' "$@"
183} 507}
184# Returns the Major version 508# @FUNCTION: gcc-major-version
509# @RETURN: major compiler version (major: [3].4.6)
185gcc-major-version() { 510gcc-major-version() {
186 gcc-version "$@" | cut -f1 -d. 511 _gcc_fullversion '$1' "$@"
187} 512}
188# Returns the Minor version 513# @FUNCTION: gcc-minor-version
514# @RETURN: minor compiler version (minor: 3.[4].6)
189gcc-minor-version() { 515gcc-minor-version() {
190 gcc-version "$@" | cut -f2 -d. 516 _gcc_fullversion '$2' "$@"
191} 517}
192# Returns the Micro version 518# @FUNCTION: gcc-micro-version
519# @RETURN: micro compiler version (micro: 3.4.[6])
193gcc-micro-version() { 520gcc-micro-version() {
194 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 521 _gcc_fullversion '$3' "$@"
195} 522}
523
196# Returns the installation directory - internal toolchain 524# Returns the installation directory - internal toolchain
197# function for use by _gcc-specs-exists (for flag-o-matic). 525# function for use by _gcc-specs-exists (for flag-o-matic).
198_gcc-install-dir() { 526_gcc-install-dir() {
199 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ 527 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
200 awk '$1=="install:" {print $2}')" 528 awk '$1=="install:" {print $2}')"
201} 529}
202# Returns true if the indicated specs file exists - internal toolchain 530# Returns true if the indicated specs file exists - internal toolchain
203# function for use by flag-o-matic. 531# function for use by flag-o-matic.
204_gcc-specs-exists() { 532_gcc-specs-exists() {
248 576
249# Returns true if gcc sets relro 577# Returns true if gcc sets relro
250gcc-specs-relro() { 578gcc-specs-relro() {
251 local directive 579 local directive
252 directive=$(gcc-specs-directive link_command) 580 directive=$(gcc-specs-directive link_command)
253 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 581 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
254} 582}
255# Returns true if gcc sets now 583# Returns true if gcc sets now
256gcc-specs-now() { 584gcc-specs-now() {
257 local directive 585 local directive
258 directive=$(gcc-specs-directive link_command) 586 directive=$(gcc-specs-directive link_command)
259 return $([[ ${directive/\{!nonow:} != ${directive} ]]) 587 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
260} 588}
261# Returns true if gcc builds PIEs 589# Returns true if gcc builds PIEs
262gcc-specs-pie() { 590gcc-specs-pie() {
263 local directive 591 local directive
264 directive=$(gcc-specs-directive cc1) 592 directive=$(gcc-specs-directive cc1)
265 return $([[ ${directive/\{!nopie:} != ${directive} ]]) 593 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
266} 594}
267# Returns true if gcc builds with the stack protector 595# Returns true if gcc builds with the stack protector
268gcc-specs-ssp() { 596gcc-specs-ssp() {
269 local directive 597 local directive
270 directive=$(gcc-specs-directive cc1) 598 directive=$(gcc-specs-directive cc1)
271 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 599 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
272} 600}
273# Returns true if gcc upgrades fstack-protector to fstack-protector-all 601# Returns true if gcc upgrades fstack-protector to fstack-protector-all
274gcc-specs-ssp-to-all() { 602gcc-specs-ssp-to-all() {
275 local directive 603 local directive
276 directive=$(gcc-specs-directive cc1) 604 directive=$(gcc-specs-directive cc1)
277 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 605 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
278} 606}
607# Returns true if gcc builds with fno-strict-overflow
608gcc-specs-nostrict() {
609 local directive
610 directive=$(gcc-specs-directive cc1)
611 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
612}
279 613
280 614
615# @FUNCTION: gen_usr_ldscript
616# @USAGE: [-a] <list of libs to create linker scripts for>
617# @DESCRIPTION:
281# This function generate linker scripts in /usr/lib for dynamic 618# This function generate linker scripts in /usr/lib for dynamic
282# libs in /lib. This is to fix linking problems when you have 619# libs in /lib. This is to fix linking problems when you have
283# the .so in /lib, and the .a in /usr/lib. What happens is that 620# the .so in /lib, and the .a in /usr/lib. What happens is that
284# in some cases when linking dynamic, the .a in /usr/lib is used 621# in some cases when linking dynamic, the .a in /usr/lib is used
285# instead of the .so in /lib due to gcc/libtool tweaking ld's 622# instead of the .so in /lib due to gcc/libtool tweaking ld's
286# library search path. This cause many builds to fail. 623# library search path. This causes many builds to fail.
287# See bug #4411 for more info. 624# See bug #4411 for more info.
288# 625#
289# To use, simply call:
290#
291# gen_usr_ldscript libfoo.so
292#
293# Note that you should in general use the unversioned name of 626# Note that you should in general use the unversioned name of
294# the library, as ldconfig should usually update it correctly 627# the library (libfoo.so), as ldconfig should usually update it
295# to point to the latest version of the library present. 628# correctly to point to the latest version of the library present.
296_tc_gen_usr_ldscript() { 629gen_usr_ldscript() {
297 local lib libdir=$(get_libdir) output_format="" 630 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
631 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
632
633 tc-is-static-only && return
634
635 # Eventually we'd like to get rid of this func completely #417451
636 case ${CTARGET:-${CHOST}} in
637 *-darwin*) ;;
638 *linux*|*-freebsd*|*-openbsd*|*-netbsd*)
639 use prefix && return 0 ;;
640 *) return 0 ;;
641 esac
642
298 # Just make sure it exists 643 # Just make sure it exists
299 dodir /usr/${libdir} 644 dodir /usr/${libdir}
300 645
646 if [[ $1 == "-a" ]] ; then
647 auto=true
648 shift
649 dodir /${libdir}
650 fi
651
301 # OUTPUT_FORMAT gives hints to the linker as to what binary format 652 # OUTPUT_FORMAT gives hints to the linker as to what binary format
302 # is referenced ... makes multilib saner 653 # is referenced ... makes multilib saner
654 local flags=( ${CFLAGS} ${LDFLAGS} -Wl,--verbose )
655 if $(tc-getLD) --version | grep -q 'GNU gold' ; then
656 # If they're using gold, manually invoke the old bfd. #487696
657 local d="${T}/bfd-linker"
658 mkdir -p "${d}"
659 ln -sf $(which ${CHOST}-ld.bfd) "${d}"/ld
660 flags+=( -B"${d}" )
661 fi
303 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 662 output_format=$($(tc-getCC) "${flags[@]}" 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
304 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 663 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
305 664
306 for lib in "$@" ; do 665 for lib in "$@" ; do
307 if [[ ${USERLAND} == "Darwin" ]] ; then 666 local tlib
308 ewarn "Not creating fake dynamic library for $lib on Darwin;" 667 if ${auto} ; then
309 ewarn "making a symlink instead." 668 lib="lib${lib}${suffix}"
310 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
311 else 669 else
670 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
671 # This especially is for AIX where $(get_libname) can return ".a",
672 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
673 [[ -r ${ED}/${libdir}/${lib} ]] || continue
674 #TODO: better die here?
675 fi
676
677 case ${CTARGET:-${CHOST}} in
678 *-darwin*)
679 if ${auto} ; then
680 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
681 else
682 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
683 fi
684 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
685 tlib=${tlib##*/}
686
687 if ${auto} ; then
688 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
689 # some install_names are funky: they encode a version
690 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
691 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
692 fi
693 rm -f "${ED}"/${libdir}/${lib}
694 fi
695
696 # Mach-O files have an id, which is like a soname, it tells how
697 # another object linking against this lib should reference it.
698 # Since we moved the lib from usr/lib into lib this reference is
699 # wrong. Hence, we update it here. We don't configure with
700 # libdir=/lib because that messes up libtool files.
701 # Make sure we don't lose the specific version, so just modify the
702 # existing install_name
703 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
704 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
705 local nowrite=yes
706 fi
707 install_name_tool \
708 -id "${EPREFIX}"/${libdir}/${tlib} \
709 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
710 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
711 # Now as we don't use GNU binutils and our linker doesn't
712 # understand linker scripts, just create a symlink.
713 pushd "${ED}/usr/${libdir}" > /dev/null
714 ln -snf "../../${libdir}/${tlib}" "${lib}"
715 popd > /dev/null
716 ;;
717 *)
718 if ${auto} ; then
719 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
720 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
721 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
722 # some SONAMEs are funky: they encode a version before the .so
723 if [[ ${tlib} != ${lib}* ]] ; then
724 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
725 fi
726 rm -f "${ED}"/${libdir}/${lib}
727 else
728 tlib=${lib}
729 fi
312 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 730 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
313 /* GNU ld script 731 /* GNU ld script
314 Since Gentoo has critical dynamic libraries 732 Since Gentoo has critical dynamic libraries in /lib, and the static versions
315 in /lib, and the static versions in /usr/lib, 733 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
316 we need to have a "fake" dynamic lib in /usr/lib, 734 run into linking problems. This "fake" dynamic lib is a linker script that
317 otherwise we run into linking problems. 735 redirects the linker to the real lib. And yes, this works in the cross-
736 compiling scenario as the sysroot-ed linker will prepend the real path.
318 737
319 See bug http://bugs.gentoo.org/4411 for more info. 738 See bug http://bugs.gentoo.org/4411 for more info.
320 */ 739 */
321 ${output_format} 740 ${output_format}
322 GROUP ( /${libdir}/${lib} ) 741 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
323 END_LDSCRIPT 742 END_LDSCRIPT
324 fi 743 ;;
744 esac
325 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 745 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
326 done 746 done
327} 747}
328gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; } 748
749fi

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