/[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 1.85 2009/01/27 23:35:04 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.134 2015/03/16 19:26:39 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 [[ -z ${_TOOLCHAIN_FUNCS_ECLASS} ]]; then
17[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib 17_TOOLCHAIN_FUNCS_ECLASS=1
18 18
19DESCRIPTION="Based on the ${ECLASS} eclass" 19inherit multilib
20 20
21# tc-getPROG <VAR [search vars]> <default> [tuple]
21tc-getPROG() { 22_tc-getPROG() {
22 local var=$1 23 local tuple=$1
24 local v var vars=$2
23 local prog=$2 25 local prog=$3
24 26
25 if [[ -n ${!var} ]] ; then 27 var=${vars%% *}
26 echo "${!var}" 28 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-getF77
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the Fortran 77 compiler
78tc-getF77() { tc-getPROG F77 f77 "$@"; }
79# @FUNCTION: tc-getFC
80# @USAGE: [toolchain prefix]
81# @RETURN: name of the Fortran 90 compiler
82tc-getFC() { tc-getPROG FC gfortran "$@"; }
83# @FUNCTION: tc-getGCJ
84# @USAGE: [toolchain prefix]
85# @RETURN: name of the java compiler
86tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
87
88# @FUNCTION: tc-getBUILD_CC
89# @USAGE: [toolchain prefix]
90# @RETURN: name of the C compiler for building binaries to run on the build machine
91tc-getBUILD_CC() {
92 local v
93 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
94 if [[ -n ${!v} ]] ; then 29 if [[ -n ${!v} ]] ; then
95 export BUILD_CC=${!v} 30 export ${var}="${!v}"
96 echo "${!v}" 31 echo "${!v}"
97 return 0 32 return 0
98 fi 33 fi
99 done 34 done
100 35
101 local search= 36 local search=
102 if [[ -n ${CBUILD} ]] ; then 37 [[ -n $4 ]] && search=$(type -p "$4-${prog}")
103 search=$(type -p ${CBUILD}-gcc) 38 [[ -z ${search} && -n ${!tuple} ]] && search=$(type -p "${!tuple}-${prog}")
104 search=${search##*/} 39 [[ -n ${search} ]] && prog=${search##*/}
105 fi
106 search=${search:-gcc}
107 40
108 export BUILD_CC=${search} 41 export ${var}=${prog}
109 echo "${search}" 42 echo "${!var}"
110} 43}
44tc-getBUILD_PROG() { _tc-getPROG CBUILD "BUILD_$1 $1_FOR_BUILD HOST$1" "${@:2}"; }
45tc-getPROG() { _tc-getPROG CHOST "$@"; }
46
47# @FUNCTION: tc-getAR
48# @USAGE: [toolchain prefix]
49# @RETURN: name of the archiver
50tc-getAR() { tc-getPROG AR ar "$@"; }
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 "$@"; }
111 160
112# @FUNCTION: tc-export 161# @FUNCTION: tc-export
113# @USAGE: <list of toolchain variables> 162# @USAGE: <list of toolchain variables>
114# @DESCRIPTION: 163# @DESCRIPTION:
115# Quick way to export a bunch of compiler vars at once. 164# Quick way to export a bunch of compiler vars at once.
122} 171}
123 172
124# @FUNCTION: tc-is-cross-compiler 173# @FUNCTION: tc-is-cross-compiler
125# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise 174# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
126tc-is-cross-compiler() { 175tc-is-cross-compiler() {
127 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 176 [[ ${CBUILD:-${CHOST}} != ${CHOST} ]]
128} 177}
129 178
130# @FUNCTION: tc-is-softfloat 179# @FUNCTION: tc-is-softfloat
131# @DESCRIPTION: 180# @DESCRIPTION:
132# See if this toolchain is a softfloat based one. 181# See if this toolchain is a softfloat based one.
133# @CODE 182# @CODE
134# The possible return values: 183# The possible return values:
135# - only: the target is always softfloat (never had fpu) 184# - only: the target is always softfloat (never had fpu)
136# - yes: the target should support softfloat 185# - yes: the target should support softfloat
186# - softfp: (arm specific) the target should use hardfloat insns, but softfloat calling convention
137# - no: the target should support hardfloat 187# - no: the target doesn't support softfloat
138# @CODE 188# @CODE
139# This allows us to react differently where packages accept 189# This allows us to react differently where packages accept
140# softfloat flags in the case where support is optional, but 190# softfloat flags in the case where support is optional, but
141# rejects softfloat flags where the target always lacks an fpu. 191# rejects softfloat flags where the target always lacks an fpu.
142tc-is-softfloat() { 192tc-is-softfloat() {
193 local CTARGET=${CTARGET:-${CHOST}}
143 case ${CTARGET} in 194 case ${CTARGET} in
144 bfin*|h8300*) 195 bfin*|h8300*)
145 echo "only" ;; 196 echo "only" ;;
146 *) 197 *)
147 [[ ${CTARGET//_/-} == *-softfloat-* ]] \ 198 if [[ ${CTARGET//_/-} == *-softfloat-* ]] ; then
148 && echo "yes" \ 199 echo "yes"
200 elif [[ ${CTARGET//_/-} == *-softfp-* ]] ; then
201 echo "softfp"
202 else
149 || echo "no" 203 echo "no"
204 fi
150 ;; 205 ;;
151 esac 206 esac
152} 207}
208
209# @FUNCTION: tc-is-static-only
210# @DESCRIPTION:
211# Return shell true if the target does not support shared libs, shell false
212# otherwise.
213tc-is-static-only() {
214 local host=${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-has-openmp
309# @USAGE: [toolchain prefix]
310# @DESCRIPTION:
311# See if the toolchain supports OpenMP.
312tc-has-openmp() {
313 local base="${T}/test-tc-openmp"
314 cat <<-EOF > "${base}.c"
315 #include <omp.h>
316 int main() {
317 int nthreads, tid, ret = 0;
318 #pragma omp parallel private(nthreads, tid)
319 {
320 tid = omp_get_thread_num();
321 nthreads = omp_get_num_threads(); ret += tid + nthreads;
322 }
323 return ret;
324 }
325 EOF
326 $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
327 local ret=$?
328 rm -f "${base}"*
329 return ${ret}
330}
331
332# @FUNCTION: tc-has-tls
333# @USAGE: [-s|-c|-l] [toolchain prefix]
334# @DESCRIPTION:
335# See if the toolchain supports thread local storage (TLS). Use -s to test the
336# compiler, -c to also test the assembler, and -l to also test the C library
337# (the default).
338tc-has-tls() {
339 local base="${T}/test-tc-tls"
340 cat <<-EOF > "${base}.c"
341 int foo(int *i) {
342 static __thread int j = 0;
343 return *i ? j : *i;
344 }
345 EOF
346 local flags
347 case $1 in
348 -s) flags="-S";;
349 -c) flags="-c";;
350 -l) ;;
351 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
352 esac
353 : ${flags:=-fPIC -shared -Wl,-z,defs}
354 [[ $1 == -* ]] && shift
355 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
356 local ret=$?
357 rm -f "${base}"*
358 return ${ret}
359}
360
153 361
154# Parse information from CBUILD/CHOST/CTARGET rather than 362# Parse information from CBUILD/CHOST/CTARGET rather than
155# use external variables from the profile. 363# use external variables from the profile.
156tc-ninja_magic_to_arch() { 364tc-ninja_magic_to_arch() {
157ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 365ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
158 366
159 local type=$1 367 local type=$1
160 local host=$2 368 local host=$2
161 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 369 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
162 370
371 local KV=${KV:-${KV_FULL}}
372 [[ ${type} == "kern" ]] && [[ -z ${KV} ]] && \
373 ewarn "QA: Kernel version could not be determined, please inherit kernel-2 or linux-info"
374
163 case ${host} in 375 case ${host} in
376 aarch64*) echo arm64;;
164 alpha*) echo alpha;; 377 alpha*) echo alpha;;
165 arm*) echo arm;; 378 arm*) echo arm;;
166 avr*) ninj avr32 avr;; 379 avr*) ninj avr32 avr;;
167 bfin*) ninj blackfin bfin;; 380 bfin*) ninj blackfin bfin;;
381 c6x*) echo c6x;;
168 cris*) echo cris;; 382 cris*) echo cris;;
383 frv*) echo frv;;
384 hexagon*) echo hexagon;;
169 hppa*) ninj parisc hppa;; 385 hppa*) ninj parisc hppa;;
170 i?86*) 386 i?86*)
171 # Starting with linux-2.6.24, the 'x86_64' and 'i386' 387 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
172 # trees have been unified into 'x86'. 388 # trees have been unified into 'x86'.
173 # FreeBSD still uses i386 389 # FreeBSD still uses i386
177 echo x86 393 echo x86
178 fi 394 fi
179 ;; 395 ;;
180 ia64*) echo ia64;; 396 ia64*) echo ia64;;
181 m68*) echo m68k;; 397 m68*) echo m68k;;
398 metag*) echo metag;;
399 microblaze*) echo microblaze;;
182 mips*) echo mips;; 400 mips*) echo mips;;
183 nios2*) echo nios2;; 401 nios2*) echo nios2;;
184 nios*) echo nios;; 402 nios*) echo nios;;
403 or32*) echo openrisc;;
185 powerpc*) 404 powerpc*)
186 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees 405 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
187 # have been unified into simply 'powerpc', but until 2.6.16, 406 # have been unified into simply 'powerpc', but until 2.6.16,
188 # ppc32 is still using ARCH="ppc" as default 407 # ppc32 is still using ARCH="ppc" as default
189 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then 408 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] ; then
190 echo powerpc 409 echo powerpc
191 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then 410 elif [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] ; then
192 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 411 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
193 echo powerpc 412 echo powerpc
194 else 413 else
195 echo ppc 414 echo ppc
196 fi 415 fi
197 elif [[ ${host} == powerpc64* ]] ; then 416 elif [[ ${host} == powerpc64* ]] ; then
198 echo ppc64 417 echo ppc64
199 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then 418 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
200 ninj ppc64 ppc 419 ninj ppc64 ppc
201 else 420 else
202 echo ppc 421 echo ppc
203 fi 422 fi
204 ;; 423 ;;
424 riscv*) echo riscv;;
205 s390*) echo s390;; 425 s390*) echo s390;;
426 score*) echo score;;
206 sh64*) ninj sh64 sh;; 427 sh64*) ninj sh64 sh;;
207 sh*) echo sh;; 428 sh*) echo sh;;
208 sparc64*) ninj sparc64 sparc;; 429 sparc64*) ninj sparc64 sparc;;
209 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 430 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
210 && ninj sparc64 sparc \ 431 && ninj sparc64 sparc \
211 || echo sparc 432 || echo sparc
212 ;; 433 ;;
434 tile*) echo tile;;
213 vax*) echo vax;; 435 vax*) echo vax;;
436 x86_64*freebsd*) echo amd64;;
214 x86_64*) 437 x86_64*)
215 # Starting with linux-2.6.24, the 'x86_64' and 'i386' 438 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
216 # trees have been unified into 'x86'. 439 # trees have been unified into 'x86'.
217 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then 440 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
218 echo x86 441 echo x86
219 else 442 else
220 ninj x86_64 amd64 443 ninj x86_64 amd64
221 fi 444 fi
222 ;; 445 ;;
446 xtensa*) echo xtensa;;
223 447
224 # since our usage of tc-arch is largely concerned with 448 # since our usage of tc-arch is largely concerned with
225 # normalizing inputs for testing ${CTARGET}, let's filter 449 # normalizing inputs for testing ${CTARGET}, let's filter
226 # other cross targets (mingw and such) into the unknown. 450 # other cross targets (mingw and such) into the unknown.
227 *) echo unknown;; 451 *) echo unknown;;
244 local host=$1 468 local host=$1
245 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 469 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
246 host=${host%%-*} 470 host=${host%%-*}
247 471
248 case ${host} in 472 case ${host} in
473 aarch64*be) echo big;;
474 aarch64) echo little;;
249 alpha*) echo big;; 475 alpha*) echo big;;
250 arm*b*) echo big;; 476 arm*b*) echo big;;
251 arm*) echo little;; 477 arm*) echo little;;
252 cris*) echo little;; 478 cris*) echo little;;
253 hppa*) echo big;; 479 hppa*) echo big;;
254 i?86*) echo little;; 480 i?86*) echo little;;
255 ia64*) echo little;; 481 ia64*) echo little;;
256 m68*) echo big;; 482 m68*) echo big;;
257 mips*l*) echo little;; 483 mips*l*) echo little;;
258 mips*) echo big;; 484 mips*) echo big;;
485 powerpc*le) echo little;;
259 powerpc*) echo big;; 486 powerpc*) echo big;;
260 s390*) echo big;; 487 s390*) echo big;;
261 sh*b*) echo big;; 488 sh*b*) echo big;;
262 sh*) echo little;; 489 sh*) echo little;;
263 sparc*) echo big;; 490 sparc*) echo big;;
264 x86_64*) echo little;; 491 x86_64*) echo little;;
265 *) echo wtf;; 492 *) echo wtf;;
266 esac 493 esac
267} 494}
268 495
496# Internal func. The first argument is the version info to expand.
497# Query the preprocessor to improve compatibility across different
498# compilers rather than maintaining a --version flag matrix. #335943
499_gcc_fullversion() {
500 local ver="$1"; shift
501 set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"`
502 eval echo "$ver"
503}
504
269# @FUNCTION: gcc-fullversion 505# @FUNCTION: gcc-fullversion
270# @RETURN: compiler version (major.minor.micro: [3.4.6]) 506# @RETURN: compiler version (major.minor.micro: [3.4.6])
271gcc-fullversion() { 507gcc-fullversion() {
272 $(tc-getCC "$@") -dumpversion 508 _gcc_fullversion '$1.$2.$3' "$@"
273} 509}
274# @FUNCTION: gcc-version 510# @FUNCTION: gcc-version
275# @RETURN: compiler version (major.minor: [3.4].6) 511# @RETURN: compiler version (major.minor: [3.4].6)
276gcc-version() { 512gcc-version() {
277 gcc-fullversion "$@" | cut -f1,2 -d. 513 _gcc_fullversion '$1.$2' "$@"
278} 514}
279# @FUNCTION: gcc-major-version 515# @FUNCTION: gcc-major-version
280# @RETURN: major compiler version (major: [3].4.6) 516# @RETURN: major compiler version (major: [3].4.6)
281gcc-major-version() { 517gcc-major-version() {
282 gcc-version "$@" | cut -f1 -d. 518 _gcc_fullversion '$1' "$@"
283} 519}
284# @FUNCTION: gcc-minor-version 520# @FUNCTION: gcc-minor-version
285# @RETURN: minor compiler version (minor: 3.[4].6) 521# @RETURN: minor compiler version (minor: 3.[4].6)
286gcc-minor-version() { 522gcc-minor-version() {
287 gcc-version "$@" | cut -f2 -d. 523 _gcc_fullversion '$2' "$@"
288} 524}
289# @FUNCTION: gcc-micro-version 525# @FUNCTION: gcc-micro-version
290# @RETURN: micro compiler version (micro: 3.4.[6]) 526# @RETURN: micro compiler version (micro: 3.4.[6])
291gcc-micro-version() { 527gcc-micro-version() {
292 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 528 _gcc_fullversion '$3' "$@"
293} 529}
294 530
295# Returns the installation directory - internal toolchain 531# Returns the installation directory - internal toolchain
296# function for use by _gcc-specs-exists (for flag-o-matic). 532# function for use by _gcc-specs-exists (for flag-o-matic).
297_gcc-install-dir() { 533_gcc-install-dir() {
347 583
348# Returns true if gcc sets relro 584# Returns true if gcc sets relro
349gcc-specs-relro() { 585gcc-specs-relro() {
350 local directive 586 local directive
351 directive=$(gcc-specs-directive link_command) 587 directive=$(gcc-specs-directive link_command)
352 return $([[ "${directive/\{!norelro:}" != "${directive}" ]]) 588 [[ "${directive/\{!norelro:}" != "${directive}" ]]
353} 589}
354# Returns true if gcc sets now 590# Returns true if gcc sets now
355gcc-specs-now() { 591gcc-specs-now() {
356 local directive 592 local directive
357 directive=$(gcc-specs-directive link_command) 593 directive=$(gcc-specs-directive link_command)
358 return $([[ "${directive/\{!nonow:}" != "${directive}" ]]) 594 [[ "${directive/\{!nonow:}" != "${directive}" ]]
359} 595}
360# Returns true if gcc builds PIEs 596# Returns true if gcc builds PIEs
361gcc-specs-pie() { 597gcc-specs-pie() {
362 local directive 598 local directive
363 directive=$(gcc-specs-directive cc1) 599 directive=$(gcc-specs-directive cc1)
364 return $([[ "${directive/\{!nopie:}" != "${directive}" ]]) 600 [[ "${directive/\{!nopie:}" != "${directive}" ]]
365} 601}
366# Returns true if gcc builds with the stack protector 602# Returns true if gcc builds with the stack protector
367gcc-specs-ssp() { 603gcc-specs-ssp() {
368 local directive 604 local directive
369 directive=$(gcc-specs-directive cc1) 605 directive=$(gcc-specs-directive cc1)
370 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]]) 606 [[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]]
371} 607}
372# Returns true if gcc upgrades fstack-protector to fstack-protector-all 608# Returns true if gcc upgrades fstack-protector to fstack-protector-all
373gcc-specs-ssp-to-all() { 609gcc-specs-ssp-to-all() {
374 local directive 610 local directive
375 directive=$(gcc-specs-directive cc1) 611 directive=$(gcc-specs-directive cc1)
376 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]]) 612 [[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]]
377} 613}
378# Returns true if gcc builds with fno-strict-overflow 614# Returns true if gcc builds with fno-strict-overflow
379gcc-specs-nostrict() { 615gcc-specs-nostrict() {
380 local directive 616 local directive
381 directive=$(gcc-specs-directive cc1) 617 directive=$(gcc-specs-directive cc1)
382 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]) 618 [[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]
619}
620# Returns true if gcc builds with fstack-check
621gcc-specs-stack-check() {
622 local directive
623 directive=$(gcc-specs-directive cc1)
624 [[ "${directive/\{!fno-stack-check:}" != "${directive}" ]]
383} 625}
384 626
385 627
386# @FUNCTION: gen_usr_ldscript 628# @FUNCTION: gen_usr_ldscript
387# @USAGE: [-a] <list of libs to create linker scripts for> 629# @USAGE: [-a] <list of libs to create linker scripts for>
397# Note that you should in general use the unversioned name of 639# Note that you should in general use the unversioned name of
398# the library (libfoo.so), as ldconfig should usually update it 640# the library (libfoo.so), as ldconfig should usually update it
399# correctly to point to the latest version of the library present. 641# correctly to point to the latest version of the library present.
400gen_usr_ldscript() { 642gen_usr_ldscript() {
401 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname) 643 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
644 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
645
646 tc-is-static-only && return
647
648 # Eventually we'd like to get rid of this func completely #417451
649 case ${CTARGET:-${CHOST}} in
650 *-darwin*) ;;
651 *linux*|*-freebsd*|*-openbsd*|*-netbsd*)
652 use prefix && return 0 ;;
653 *) return 0 ;;
654 esac
655
402 # Just make sure it exists 656 # Just make sure it exists
403 dodir /usr/${libdir} 657 dodir /usr/${libdir}
404 658
405 if [[ $1 == "-a" ]] ; then 659 if [[ $1 == "-a" ]] ; then
406 auto=true 660 auto=true
408 dodir /${libdir} 662 dodir /${libdir}
409 fi 663 fi
410 664
411 # OUTPUT_FORMAT gives hints to the linker as to what binary format 665 # OUTPUT_FORMAT gives hints to the linker as to what binary format
412 # is referenced ... makes multilib saner 666 # is referenced ... makes multilib saner
667 local flags=( ${CFLAGS} ${LDFLAGS} -Wl,--verbose )
668 if $(tc-getLD) --version | grep -q 'GNU gold' ; then
669 # If they're using gold, manually invoke the old bfd. #487696
670 local d="${T}/bfd-linker"
671 mkdir -p "${d}"
672 ln -sf $(which ${CHOST}-ld.bfd) "${d}"/ld
673 flags+=( -B"${d}" )
674 fi
413 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 675 output_format=$($(tc-getCC) "${flags[@]}" 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
414 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 676 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
415 677
416 for lib in "$@" ; do 678 for lib in "$@" ; do
417 if [[ ${USERLAND} == "Darwin" ]] ; then 679 local tlib
418 ewarn "Not creating fake dynamic library for $lib on Darwin;" 680 if ${auto} ; then
419 ewarn "making a symlink instead." 681 lib="lib${lib}${suffix}"
420 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
421 else 682 else
422 local tlib 683 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
684 # This especially is for AIX where $(get_libname) can return ".a",
685 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
686 [[ -r ${ED}/${libdir}/${lib} ]] || continue
687 #TODO: better die here?
688 fi
689
690 case ${CTARGET:-${CHOST}} in
691 *-darwin*)
423 if ${auto} ; then 692 if ${auto} ; then
424 lib="lib${lib}${suffix}" 693 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
694 else
695 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
696 fi
697 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
698 tlib=${tlib##*/}
699
700 if ${auto} ; then
425 mv "${D}"/usr/${libdir}/${lib}* "${D}"/${libdir}/ || die 701 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
702 # some install_names are funky: they encode a version
703 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
704 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
705 fi
706 rm -f "${ED}"/${libdir}/${lib}
707 fi
708
709 # Mach-O files have an id, which is like a soname, it tells how
710 # another object linking against this lib should reference it.
711 # Since we moved the lib from usr/lib into lib this reference is
712 # wrong. Hence, we update it here. We don't configure with
713 # libdir=/lib because that messes up libtool files.
714 # Make sure we don't lose the specific version, so just modify the
715 # existing install_name
716 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
717 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
718 local nowrite=yes
719 fi
720 install_name_tool \
721 -id "${EPREFIX}"/${libdir}/${tlib} \
722 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
723 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
724 # Now as we don't use GNU binutils and our linker doesn't
725 # understand linker scripts, just create a symlink.
726 pushd "${ED}/usr/${libdir}" > /dev/null
727 ln -snf "../../${libdir}/${tlib}" "${lib}"
728 popd > /dev/null
729 ;;
730 *)
731 if ${auto} ; then
426 tlib=$(scanelf -qF'%S#F' "${D}"/${libdir}/${lib}) 732 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
427 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}" 733 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
734 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
735 # some SONAMEs are funky: they encode a version before the .so
736 if [[ ${tlib} != ${lib}* ]] ; then
737 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
738 fi
428 rm -f "${D}"/${libdir}/${lib} 739 rm -f "${ED}"/${libdir}/${lib}
429 else 740 else
430 tlib=${lib} 741 tlib=${lib}
431 fi 742 fi
432 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 743 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
433 /* GNU ld script 744 /* GNU ld script
434 Since Gentoo has critical dynamic libraries 745 Since Gentoo has critical dynamic libraries in /lib, and the static versions
435 in /lib, and the static versions in /usr/lib, 746 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
436 we need to have a "fake" dynamic lib in /usr/lib, 747 run into linking problems. This "fake" dynamic lib is a linker script that
437 otherwise we run into linking problems. 748 redirects the linker to the real lib. And yes, this works in the cross-
749 compiling scenario as the sysroot-ed linker will prepend the real path.
438 750
439 See bug http://bugs.gentoo.org/4411 for more info. 751 See bug http://bugs.gentoo.org/4411 for more info.
440 */ 752 */
441 ${output_format} 753 ${output_format}
442 GROUP ( /${libdir}/${tlib} ) 754 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
443 END_LDSCRIPT 755 END_LDSCRIPT
756 ;;
757 esac
444 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 758 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
445 fi
446 done 759 done
447} 760}
761
762fi

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