/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2015 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 1.135 2015/03/16 21:12:27 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 [[ -z ${_TOOLCHAIN_FUNCS_ECLASS} ]]; then
11[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib 17_TOOLCHAIN_FUNCS_ECLASS=1
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 "$@"; }
87# @FUNCTION: tc-getOBJDUMP
88# @USAGE: [toolchain prefix]
89# @RETURN: name of the object dumper
90tc-getOBJDUMP() { tc-getPROG OBJDUMP objdump "$@"; }
91# @FUNCTION: tc-getF77
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the Fortran 77 compiler
94tc-getF77() { tc-getPROG F77 gfortran "$@"; }
95# @FUNCTION: tc-getFC
96# @USAGE: [toolchain prefix]
97# @RETURN: name of the Fortran 90 compiler
98tc-getFC() { tc-getPROG FC gfortran "$@"; }
99# @FUNCTION: tc-getGCJ
100# @USAGE: [toolchain prefix]
101# @RETURN: name of the java compiler
102tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
103# @FUNCTION: tc-getPKG_CONFIG
104# @USAGE: [toolchain prefix]
105# @RETURN: name of the pkg-config tool
106tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
107# @FUNCTION: tc-getRC
108# @USAGE: [toolchain prefix]
109# @RETURN: name of the Windows resource compiler
110tc-getRC() { tc-getPROG RC windres "$@"; }
111# @FUNCTION: tc-getDLLWRAP
112# @USAGE: [toolchain prefix]
113# @RETURN: name of the Windows dllwrap utility
114tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
115
116# @FUNCTION: tc-getBUILD_AR
117# @USAGE: [toolchain prefix]
118# @RETURN: name of the archiver for building binaries to run on the build machine
119tc-getBUILD_AR() { tc-getBUILD_PROG AR ar "$@"; }
120# @FUNCTION: tc-getBUILD_AS
121# @USAGE: [toolchain prefix]
122# @RETURN: name of the assembler for building binaries to run on the build machine
123tc-getBUILD_AS() { tc-getBUILD_PROG AS as "$@"; }
124# @FUNCTION: tc-getBUILD_CC
125# @USAGE: [toolchain prefix]
126# @RETURN: name of the C compiler for building binaries to run on the build machine
127tc-getBUILD_CC() { tc-getBUILD_PROG CC gcc "$@"; }
128# @FUNCTION: tc-getBUILD_CPP
129# @USAGE: [toolchain prefix]
130# @RETURN: name of the C preprocessor for building binaries to run on the build machine
131tc-getBUILD_CPP() { tc-getBUILD_PROG CPP cpp "$@"; }
132# @FUNCTION: tc-getBUILD_CXX
133# @USAGE: [toolchain prefix]
134# @RETURN: name of the C++ compiler for building binaries to run on the build machine
135tc-getBUILD_CXX() { tc-getBUILD_PROG CXX g++ "$@"; }
136# @FUNCTION: tc-getBUILD_LD
137# @USAGE: [toolchain prefix]
138# @RETURN: name of the linker for building binaries to run on the build machine
139tc-getBUILD_LD() { tc-getBUILD_PROG LD ld "$@"; }
140# @FUNCTION: tc-getBUILD_STRIP
141# @USAGE: [toolchain prefix]
142# @RETURN: name of the strip program for building binaries to run on the build machine
143tc-getBUILD_STRIP() { tc-getBUILD_PROG STRIP strip "$@"; }
144# @FUNCTION: tc-getBUILD_NM
145# @USAGE: [toolchain prefix]
146# @RETURN: name of the symbol/object thingy for building binaries to run on the build machine
147tc-getBUILD_NM() { tc-getBUILD_PROG NM nm "$@"; }
148# @FUNCTION: tc-getBUILD_RANLIB
149# @USAGE: [toolchain prefix]
150# @RETURN: name of the archiver indexer for building binaries to run on the build machine
151tc-getBUILD_RANLIB() { tc-getBUILD_PROG RANLIB ranlib "$@"; }
152# @FUNCTION: tc-getBUILD_OBJCOPY
153# @USAGE: [toolchain prefix]
154# @RETURN: name of the object copier for building binaries to run on the build machine
155tc-getBUILD_OBJCOPY() { tc-getBUILD_PROG OBJCOPY objcopy "$@"; }
156# @FUNCTION: tc-getBUILD_PKG_CONFIG
157# @USAGE: [toolchain prefix]
158# @RETURN: name of the pkg-config tool for building binaries to run on the build machine
159tc-getBUILD_PKG_CONFIG() { tc-getBUILD_PROG PKG_CONFIG pkg-config "$@"; }
160
161# @FUNCTION: tc-export
162# @USAGE: <list of toolchain variables>
163# @DESCRIPTION:
82# Quick way to export a bunch of vars at once 164# Quick way to export a bunch of compiler vars at once.
83tc-export() { 165tc-export() {
84 local var 166 local var
85 for var in "$@" ; do 167 for var in "$@" ; do
168 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
86 eval tc-get${var} > /dev/null 169 eval tc-get${var} > /dev/null
87 done 170 done
88} 171}
89 172
90# A simple way to see if we're using a cross-compiler ... 173# @FUNCTION: tc-is-cross-compiler
174# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
91tc-is-cross-compiler() { 175tc-is-cross-compiler() {
92 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 176 [[ ${CBUILD:-${CHOST}} != ${CHOST} ]]
93} 177}
94 178
179# @FUNCTION: tc-is-softfloat
180# @DESCRIPTION:
95# See if this toolchain is a softfloat based one. 181# See if this toolchain is a softfloat based one.
182# @CODE
96# The possible return values: 183# The possible return values:
97# - only: the target is always softfloat (never had fpu) 184# - only: the target is always softfloat (never had fpu)
98# - yes: the target should support softfloat 185# - yes: the target should support softfloat
186# - softfp: (arm specific) the target should use hardfloat insns, but softfloat calling convention
99# - no: the target should support hardfloat 187# - no: the target doesn't support softfloat
188# @CODE
100# This allows us to react differently where packages accept 189# This allows us to react differently where packages accept
101# softfloat flags in the case where support is optional, but 190# softfloat flags in the case where support is optional, but
102# rejects softfloat flags where the target always lacks an fpu. 191# rejects softfloat flags where the target always lacks an fpu.
103tc-is-softfloat() { 192tc-is-softfloat() {
193 local CTARGET=${CTARGET:-${CHOST}}
104 case ${CTARGET} in 194 case ${CTARGET} in
105 bfin*|h8300*) 195 bfin*|h8300*)
106 echo "only" ;; 196 echo "only" ;;
107 *) 197 *)
108 [[ ${CTARGET//_/-} == *-softfloat-* ]] \ 198 if [[ ${CTARGET//_/-} == *-softfloat-* ]] ; then
109 && echo "yes" \ 199 echo "yes"
200 elif [[ ${CTARGET//_/-} == *-softfp-* ]] ; then
201 echo "softfp"
202 else
110 || echo "no" 203 echo "no"
204 fi
111 ;; 205 ;;
112 esac 206 esac
113} 207}
208
209# @FUNCTION: tc-is-static-only
210# @DESCRIPTION:
211# Return shell true if the target does not support shared libs, shell false
212# otherwise.
213tc-is-static-only() {
214 local host=${CTARGET:-${CHOST}}
215
216 # *MiNT doesn't have shared libraries, only platform so far
217 [[ ${host} == *-mint* ]]
218}
219
220# @FUNCTION: tc-export_build_env
221# @USAGE: [compiler variables]
222# @DESCRIPTION:
223# Export common build related compiler settings.
224tc-export_build_env() {
225 tc-export "$@"
226 : ${BUILD_CFLAGS:=-O1 -pipe}
227 : ${BUILD_CXXFLAGS:=-O1 -pipe}
228 : ${BUILD_CPPFLAGS:=}
229 : ${BUILD_LDFLAGS:=}
230 export BUILD_{C,CXX,CPP,LD}FLAGS
231
232 # Some packages use XXX_FOR_BUILD.
233 local v
234 for v in BUILD_{C,CXX,CPP,LD}FLAGS ; do
235 export ${v#BUILD_}_FOR_BUILD="${!v}"
236 done
237}
238
239# @FUNCTION: tc-env_build
240# @USAGE: <command> [command args]
241# @INTERNAL
242# @DESCRIPTION:
243# Setup the compile environment to the build tools and then execute the
244# specified command. We use tc-getBUILD_XX here so that we work with
245# all of the semi-[non-]standard env vars like $BUILD_CC which often
246# the target build system does not check.
247tc-env_build() {
248 tc-export_build_env
249 CFLAGS=${BUILD_CFLAGS} \
250 CXXFLAGS=${BUILD_CXXFLAGS} \
251 CPPFLAGS=${BUILD_CPPFLAGS} \
252 LDFLAGS=${BUILD_LDFLAGS} \
253 AR=$(tc-getBUILD_AR) \
254 AS=$(tc-getBUILD_AS) \
255 CC=$(tc-getBUILD_CC) \
256 CPP=$(tc-getBUILD_CPP) \
257 CXX=$(tc-getBUILD_CXX) \
258 LD=$(tc-getBUILD_LD) \
259 NM=$(tc-getBUILD_NM) \
260 PKG_CONFIG=$(tc-getBUILD_PKG_CONFIG) \
261 RANLIB=$(tc-getBUILD_RANLIB) \
262 "$@"
263}
264
265# @FUNCTION: econf_build
266# @USAGE: [econf flags]
267# @DESCRIPTION:
268# Sometimes we need to locally build up some tools to run on CBUILD because
269# the package has helper utils which are compiled+executed when compiling.
270# This won't work when cross-compiling as the CHOST is set to a target which
271# we cannot natively execute.
272#
273# For example, the python package will build up a local python binary using
274# a portable build system (configure+make), but then use that binary to run
275# local python scripts to build up other components of the overall python.
276# We cannot rely on the python binary in $PATH as that often times will be
277# a different version, or not even installed in the first place. Instead,
278# we compile the code in a different directory to run on CBUILD, and then
279# use that binary when compiling the main package to run on CHOST.
280#
281# For example, with newer EAPIs, you'd do something like:
282# @CODE
283# src_configure() {
284# ECONF_SOURCE=${S}
285# if tc-is-cross-compiler ; then
286# mkdir "${WORKDIR}"/${CBUILD}
287# pushd "${WORKDIR}"/${CBUILD} >/dev/null
288# econf_build --disable-some-unused-stuff
289# popd >/dev/null
290# fi
291# ... normal build paths ...
292# }
293# src_compile() {
294# if tc-is-cross-compiler ; then
295# pushd "${WORKDIR}"/${CBUILD} >/dev/null
296# emake one-or-two-build-tools
297# ln/mv build-tools to normal build paths in ${S}/
298# popd >/dev/null
299# fi
300# ... normal build paths ...
301# }
302# @CODE
303econf_build() {
304 local CBUILD=${CBUILD:-${CHOST}}
305 tc-env_build econf --build=${CBUILD} --host=${CBUILD} "$@"
306}
307
308# @FUNCTION: tc-ld-is-gold
309# @USAGE: [toolchain prefix]
310# @DESCRIPTION:
311# Return true if the current linker is set to gold.
312tc-ld-is-gold() {
313 local out
314
315 # First check the linker directly.
316 out=$($(tc-getLD "$@") --version 2>&1)
317 if [[ ${out} == *"GNU gold"* ]] ; then
318 return 0
319 fi
320
321 # Then see if they're selecting gold via compiler flags.
322 # Note: We're assuming they're using LDFLAGS to hold the
323 # options and not CFLAGS/CXXFLAGS.
324 local base="${T}/test-tc-gold"
325 cat <<-EOF > "${base}.c"
326 int main() { return 0; }
327 EOF
328 out=$($(tc-getCC "$@") ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} -Wl,--version "${base}.c" -o "${base}" 2>&1)
329 rm -f "${base}"*
330 if [[ ${out} == *"GNU gold"* ]] ; then
331 return 0
332 fi
333
334 # No gold here!
335 return 1
336}
337
338# @FUNCTION: tc-ld-disable-gold
339# @USAGE: [toolchain prefix]
340# @DESCRIPTION:
341# If the gold linker is currently selected, configure the compilation
342# settings so that we use the older bfd linker instead.
343tc-ld-disable-gold() {
344 if ! tc-ld-is-gold "$@" ; then
345 # They aren't using gold, so nothing to do!
346 return
347 fi
348
349 ewarn "Forcing usage of the BFD linker instead of GOLD"
350
351 # Set up LD to point directly to bfd if it's available.
352 local bfd_ld="$(tc-getLD "$@").bfd"
353 local path_ld=$(which "${bfd_ld}" 2>/dev/null)
354 [[ -e ${path_ld} ]] && export LD=${bfd_ld}
355
356 # Set up LDFLAGS to select gold based on the gcc version.
357 local major=$(gcc-major-version "$@")
358 local minor=$(gcc-minor-version "$@")
359 if [[ ${major} -lt 4 ]] || [[ ${major} -eq 4 && ${minor} -lt 8 ]] ; then
360 # <=gcc-4.7 requires some coercion. Only works if bfd exists.
361 if [[ -e ${path_ld} ]] ; then
362 local d="${T}/bfd-linker"
363 mkdir -p "${d}"
364 ln -sf "${path_ld}" "${d}"/ld
365 export LDFLAGS="${LDFLAGS} -B${d}"
366 else
367 die "unable to locate a BFD linker to bypass gold"
368 fi
369 else
370 # gcc-4.8+ supports -fuse-ld directly.
371 export LDFLAGS="${LDFLAGS} -fuse-ld=bfd"
372 fi
373}
374
375# @FUNCTION: tc-has-openmp
376# @USAGE: [toolchain prefix]
377# @DESCRIPTION:
378# See if the toolchain supports OpenMP.
379tc-has-openmp() {
380 local base="${T}/test-tc-openmp"
381 cat <<-EOF > "${base}.c"
382 #include <omp.h>
383 int main() {
384 int nthreads, tid, ret = 0;
385 #pragma omp parallel private(nthreads, tid)
386 {
387 tid = omp_get_thread_num();
388 nthreads = omp_get_num_threads(); ret += tid + nthreads;
389 }
390 return ret;
391 }
392 EOF
393 $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
394 local ret=$?
395 rm -f "${base}"*
396 return ${ret}
397}
398
399# @FUNCTION: tc-has-tls
400# @USAGE: [-s|-c|-l] [toolchain prefix]
401# @DESCRIPTION:
402# See if the toolchain supports thread local storage (TLS). Use -s to test the
403# compiler, -c to also test the assembler, and -l to also test the C library
404# (the default).
405tc-has-tls() {
406 local base="${T}/test-tc-tls"
407 cat <<-EOF > "${base}.c"
408 int foo(int *i) {
409 static __thread int j = 0;
410 return *i ? j : *i;
411 }
412 EOF
413 local flags
414 case $1 in
415 -s) flags="-S";;
416 -c) flags="-c";;
417 -l) ;;
418 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
419 esac
420 : ${flags:=-fPIC -shared -Wl,-z,defs}
421 [[ $1 == -* ]] && shift
422 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
423 local ret=$?
424 rm -f "${base}"*
425 return ${ret}
426}
427
114 428
115# Parse information from CBUILD/CHOST/CTARGET rather than 429# Parse information from CBUILD/CHOST/CTARGET rather than
116# use external variables from the profile. 430# use external variables from the profile.
117tc-ninja_magic_to_arch() { 431tc-ninja_magic_to_arch() {
118ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 432ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
119 433
120 local type=$1 434 local type=$1
121 local host=$2 435 local host=$2
122 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 436 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
123 437
438 local KV=${KV:-${KV_FULL}}
439 [[ ${type} == "kern" ]] && [[ -z ${KV} ]] && \
440 ewarn "QA: Kernel version could not be determined, please inherit kernel-2 or linux-info"
441
124 case ${host} in 442 case ${host} in
443 aarch64*) echo arm64;;
125 alpha*) echo alpha;; 444 alpha*) echo alpha;;
126 arm*) echo arm;; 445 arm*) echo arm;;
446 avr*) ninj avr32 avr;;
127 bfin*) ninj blackfin bfin;; 447 bfin*) ninj blackfin bfin;;
448 c6x*) echo c6x;;
128 cris*) echo cris;; 449 cris*) echo cris;;
450 frv*) echo frv;;
451 hexagon*) echo hexagon;;
129 hppa*) ninj parisc hppa;; 452 hppa*) ninj parisc hppa;;
130 i?86*) ninj i386 x86;; 453 i?86*)
454 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
455 # trees have been unified into 'x86'.
456 # FreeBSD still uses i386
457 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
458 echo i386
459 else
460 echo x86
461 fi
462 ;;
131 ia64*) echo ia64;; 463 ia64*) echo ia64;;
132 m68*) echo m68k;; 464 m68*) echo m68k;;
465 metag*) echo metag;;
466 microblaze*) echo microblaze;;
133 mips*) echo mips;; 467 mips*) echo mips;;
134 nios2*) echo nios2;; 468 nios2*) echo nios2;;
135 nios*) echo nios;; 469 nios*) echo nios;;
470 or32*) echo openrisc;;
136 powerpc*) 471 powerpc*)
137 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees 472 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
138 # have been unified into simply 'powerpc', but until 2.6.16, 473 # have been unified into simply 'powerpc', but until 2.6.16,
139 # ppc32 is still using ARCH="ppc" as default 474 # ppc32 is still using ARCH="ppc" as default
140 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then 475 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] ; then
141 echo powerpc 476 echo powerpc
142 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then 477 elif [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] ; then
143 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 478 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
144 echo powerpc 479 echo powerpc
145 else 480 else
146 echo ppc 481 echo ppc
147 fi 482 fi
148 elif [[ ${host} == powerpc64* ]] ; then 483 elif [[ ${host} == powerpc64* ]] ; then
149 echo ppc64 484 echo ppc64
150 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 485 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
151 ninj ppc64 ppc 486 ninj ppc64 ppc
152 else 487 else
153 echo ppc 488 echo ppc
154 fi 489 fi
155 ;; 490 ;;
491 riscv*) echo riscv;;
156 s390*) echo s390;; 492 s390*) echo s390;;
493 score*) echo score;;
157 sh64*) ninj sh64 sh;; 494 sh64*) ninj sh64 sh;;
158 sh*) echo sh;; 495 sh*) echo sh;;
159 sparc64*) ninj sparc64 sparc;; 496 sparc64*) ninj sparc64 sparc;;
160 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 497 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
161 && ninj sparc64 sparc \ 498 && ninj sparc64 sparc \
162 || echo sparc 499 || echo sparc
163 ;; 500 ;;
501 tile*) echo tile;;
164 vax*) echo vax;; 502 vax*) echo vax;;
165 x86_64*) ninj x86_64 amd64;; 503 x86_64*freebsd*) echo amd64;;
166 *) echo ${ARCH};; 504 x86_64*)
505 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
506 # trees have been unified into 'x86'.
507 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
508 echo x86
509 else
510 ninj x86_64 amd64
511 fi
512 ;;
513 xtensa*) echo xtensa;;
514
515 # since our usage of tc-arch is largely concerned with
516 # normalizing inputs for testing ${CTARGET}, let's filter
517 # other cross targets (mingw and such) into the unknown.
518 *) echo unknown;;
167 esac 519 esac
168} 520}
521# @FUNCTION: tc-arch-kernel
522# @USAGE: [toolchain prefix]
523# @RETURN: name of the kernel arch according to the compiler target
169tc-arch-kernel() { 524tc-arch-kernel() {
170 tc-ninja_magic_to_arch kern $@ 525 tc-ninja_magic_to_arch kern "$@"
171} 526}
527# @FUNCTION: tc-arch
528# @USAGE: [toolchain prefix]
529# @RETURN: name of the portage arch according to the compiler target
172tc-arch() { 530tc-arch() {
173 tc-ninja_magic_to_arch portage $@ 531 tc-ninja_magic_to_arch portage "$@"
174} 532}
175 533
176# Returns the version as by `$CC -dumpversion` 534tc-endian() {
535 local host=$1
536 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
537 host=${host%%-*}
538
539 case ${host} in
540 aarch64*be) echo big;;
541 aarch64) echo little;;
542 alpha*) echo big;;
543 arm*b*) echo big;;
544 arm*) echo little;;
545 cris*) echo little;;
546 hppa*) echo big;;
547 i?86*) echo little;;
548 ia64*) echo little;;
549 m68*) echo big;;
550 mips*l*) echo little;;
551 mips*) echo big;;
552 powerpc*le) echo little;;
553 powerpc*) echo big;;
554 s390*) echo big;;
555 sh*b*) echo big;;
556 sh*) echo little;;
557 sparc*) echo big;;
558 x86_64*) echo little;;
559 *) echo wtf;;
560 esac
561}
562
563# Internal func. The first argument is the version info to expand.
564# Query the preprocessor to improve compatibility across different
565# compilers rather than maintaining a --version flag matrix. #335943
566_gcc_fullversion() {
567 local ver="$1"; shift
568 set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"`
569 eval echo "$ver"
570}
571
572# @FUNCTION: gcc-fullversion
573# @RETURN: compiler version (major.minor.micro: [3.4.6])
177gcc-fullversion() { 574gcc-fullversion() {
178 $(tc-getCC "$@") -dumpversion 575 _gcc_fullversion '$1.$2.$3' "$@"
179} 576}
180# Returns the version, but only the <major>.<minor> 577# @FUNCTION: gcc-version
578# @RETURN: compiler version (major.minor: [3.4].6)
181gcc-version() { 579gcc-version() {
182 gcc-fullversion "$@" | cut -f1,2 -d. 580 _gcc_fullversion '$1.$2' "$@"
183} 581}
184# Returns the Major version 582# @FUNCTION: gcc-major-version
583# @RETURN: major compiler version (major: [3].4.6)
185gcc-major-version() { 584gcc-major-version() {
186 gcc-version "$@" | cut -f1 -d. 585 _gcc_fullversion '$1' "$@"
187} 586}
188# Returns the Minor version 587# @FUNCTION: gcc-minor-version
588# @RETURN: minor compiler version (minor: 3.[4].6)
189gcc-minor-version() { 589gcc-minor-version() {
190 gcc-version "$@" | cut -f2 -d. 590 _gcc_fullversion '$2' "$@"
191} 591}
192# Returns the Micro version 592# @FUNCTION: gcc-micro-version
593# @RETURN: micro compiler version (micro: 3.4.[6])
193gcc-micro-version() { 594gcc-micro-version() {
194 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 595 _gcc_fullversion '$3' "$@"
195} 596}
597
196# Returns the installation directory - internal toolchain 598# Returns the installation directory - internal toolchain
197# function for use by _gcc-specs-exists (for flag-o-matic). 599# function for use by _gcc-specs-exists (for flag-o-matic).
198_gcc-install-dir() { 600_gcc-install-dir() {
199 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ 601 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
200 awk '$1=="install:" {print $2}')" 602 awk '$1=="install:" {print $2}')"
201} 603}
202# Returns true if the indicated specs file exists - internal toolchain 604# Returns true if the indicated specs file exists - internal toolchain
203# function for use by flag-o-matic. 605# function for use by flag-o-matic.
204_gcc-specs-exists() { 606_gcc-specs-exists() {
248 650
249# Returns true if gcc sets relro 651# Returns true if gcc sets relro
250gcc-specs-relro() { 652gcc-specs-relro() {
251 local directive 653 local directive
252 directive=$(gcc-specs-directive link_command) 654 directive=$(gcc-specs-directive link_command)
253 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 655 [[ "${directive/\{!norelro:}" != "${directive}" ]]
254} 656}
255# Returns true if gcc sets now 657# Returns true if gcc sets now
256gcc-specs-now() { 658gcc-specs-now() {
257 local directive 659 local directive
258 directive=$(gcc-specs-directive link_command) 660 directive=$(gcc-specs-directive link_command)
259 return $([[ ${directive/\{!nonow:} != ${directive} ]]) 661 [[ "${directive/\{!nonow:}" != "${directive}" ]]
260} 662}
261# Returns true if gcc builds PIEs 663# Returns true if gcc builds PIEs
262gcc-specs-pie() { 664gcc-specs-pie() {
263 local directive 665 local directive
264 directive=$(gcc-specs-directive cc1) 666 directive=$(gcc-specs-directive cc1)
265 return $([[ ${directive/\{!nopie:} != ${directive} ]]) 667 [[ "${directive/\{!nopie:}" != "${directive}" ]]
266} 668}
267# Returns true if gcc builds with the stack protector 669# Returns true if gcc builds with the stack protector
268gcc-specs-ssp() { 670gcc-specs-ssp() {
269 local directive 671 local directive
270 directive=$(gcc-specs-directive cc1) 672 directive=$(gcc-specs-directive cc1)
271 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 673 [[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]]
272} 674}
273# Returns true if gcc upgrades fstack-protector to fstack-protector-all 675# Returns true if gcc upgrades fstack-protector to fstack-protector-all
274gcc-specs-ssp-to-all() { 676gcc-specs-ssp-to-all() {
275 local directive 677 local directive
276 directive=$(gcc-specs-directive cc1) 678 directive=$(gcc-specs-directive cc1)
277 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 679 [[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]]
278} 680}
681# Returns true if gcc builds with fno-strict-overflow
682gcc-specs-nostrict() {
683 local directive
684 directive=$(gcc-specs-directive cc1)
685 [[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]
686}
687# Returns true if gcc builds with fstack-check
688gcc-specs-stack-check() {
689 local directive
690 directive=$(gcc-specs-directive cc1)
691 [[ "${directive/\{!fno-stack-check:}" != "${directive}" ]]
692}
279 693
280 694
695# @FUNCTION: gen_usr_ldscript
696# @USAGE: [-a] <list of libs to create linker scripts for>
697# @DESCRIPTION:
281# This function generate linker scripts in /usr/lib for dynamic 698# This function generate linker scripts in /usr/lib for dynamic
282# libs in /lib. This is to fix linking problems when you have 699# libs in /lib. This is to fix linking problems when you have
283# the .so in /lib, and the .a in /usr/lib. What happens is that 700# the .so in /lib, and the .a in /usr/lib. What happens is that
284# in some cases when linking dynamic, the .a in /usr/lib is used 701# in some cases when linking dynamic, the .a in /usr/lib is used
285# instead of the .so in /lib due to gcc/libtool tweaking ld's 702# instead of the .so in /lib due to gcc/libtool tweaking ld's
286# library search path. This cause many builds to fail. 703# library search path. This causes many builds to fail.
287# See bug #4411 for more info. 704# See bug #4411 for more info.
288# 705#
289# To use, simply call:
290#
291# gen_usr_ldscript libfoo.so
292#
293# Note that you should in general use the unversioned name of 706# Note that you should in general use the unversioned name of
294# the library, as ldconfig should usually update it correctly 707# the library (libfoo.so), as ldconfig should usually update it
295# to point to the latest version of the library present. 708# correctly to point to the latest version of the library present.
296_tc_gen_usr_ldscript() { 709gen_usr_ldscript() {
297 local lib libdir=$(get_libdir) output_format="" 710 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
711 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
712
713 tc-is-static-only && return
714
715 # Eventually we'd like to get rid of this func completely #417451
716 case ${CTARGET:-${CHOST}} in
717 *-darwin*) ;;
718 *linux*|*-freebsd*|*-openbsd*|*-netbsd*)
719 use prefix && return 0 ;;
720 *) return 0 ;;
721 esac
722
298 # Just make sure it exists 723 # Just make sure it exists
299 dodir /usr/${libdir} 724 dodir /usr/${libdir}
300 725
726 if [[ $1 == "-a" ]] ; then
727 auto=true
728 shift
729 dodir /${libdir}
730 fi
731
301 # OUTPUT_FORMAT gives hints to the linker as to what binary format 732 # OUTPUT_FORMAT gives hints to the linker as to what binary format
302 # is referenced ... makes multilib saner 733 # is referenced ... makes multilib saner
734 local flags=( ${CFLAGS} ${LDFLAGS} -Wl,--verbose )
735 if $(tc-getLD) --version | grep -q 'GNU gold' ; then
736 # If they're using gold, manually invoke the old bfd. #487696
737 local d="${T}/bfd-linker"
738 mkdir -p "${d}"
739 ln -sf $(which ${CHOST}-ld.bfd) "${d}"/ld
740 flags+=( -B"${d}" )
741 fi
303 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 742 output_format=$($(tc-getCC) "${flags[@]}" 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
304 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 743 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
305 744
306 for lib in "$@" ; do 745 for lib in "$@" ; do
307 if [[ ${USERLAND} == "Darwin" ]] ; then 746 local tlib
308 ewarn "Not creating fake dynamic library for $lib on Darwin;" 747 if ${auto} ; then
309 ewarn "making a symlink instead." 748 lib="lib${lib}${suffix}"
310 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
311 else 749 else
750 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
751 # This especially is for AIX where $(get_libname) can return ".a",
752 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
753 [[ -r ${ED}/${libdir}/${lib} ]] || continue
754 #TODO: better die here?
755 fi
756
757 case ${CTARGET:-${CHOST}} in
758 *-darwin*)
759 if ${auto} ; then
760 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
761 else
762 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
763 fi
764 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
765 tlib=${tlib##*/}
766
767 if ${auto} ; then
768 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
769 # some install_names are funky: they encode a version
770 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
771 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
772 fi
773 rm -f "${ED}"/${libdir}/${lib}
774 fi
775
776 # Mach-O files have an id, which is like a soname, it tells how
777 # another object linking against this lib should reference it.
778 # Since we moved the lib from usr/lib into lib this reference is
779 # wrong. Hence, we update it here. We don't configure with
780 # libdir=/lib because that messes up libtool files.
781 # Make sure we don't lose the specific version, so just modify the
782 # existing install_name
783 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
784 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
785 local nowrite=yes
786 fi
787 install_name_tool \
788 -id "${EPREFIX}"/${libdir}/${tlib} \
789 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
790 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
791 # Now as we don't use GNU binutils and our linker doesn't
792 # understand linker scripts, just create a symlink.
793 pushd "${ED}/usr/${libdir}" > /dev/null
794 ln -snf "../../${libdir}/${tlib}" "${lib}"
795 popd > /dev/null
796 ;;
797 *)
798 if ${auto} ; then
799 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
800 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
801 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
802 # some SONAMEs are funky: they encode a version before the .so
803 if [[ ${tlib} != ${lib}* ]] ; then
804 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
805 fi
806 rm -f "${ED}"/${libdir}/${lib}
807 else
808 tlib=${lib}
809 fi
312 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 810 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
313 /* GNU ld script 811 /* GNU ld script
314 Since Gentoo has critical dynamic libraries 812 Since Gentoo has critical dynamic libraries in /lib, and the static versions
315 in /lib, and the static versions in /usr/lib, 813 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, 814 run into linking problems. This "fake" dynamic lib is a linker script that
317 otherwise we run into linking problems. 815 redirects the linker to the real lib. And yes, this works in the cross-
816 compiling scenario as the sysroot-ed linker will prepend the real path.
318 817
319 See bug http://bugs.gentoo.org/4411 for more info. 818 See bug http://bugs.gentoo.org/4411 for more info.
320 */ 819 */
321 ${output_format} 820 ${output_format}
322 GROUP ( /${libdir}/${lib} ) 821 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
323 END_LDSCRIPT 822 END_LDSCRIPT
324 fi 823 ;;
824 esac
325 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 825 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
326 done 826 done
327} 827}
328gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; } 828
829fi

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