1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
|
#!/usr/bin/env bash
# Copyright 2002-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# Format of /etc/env.d/gcc/ contents:
# config-<TARGET>: CURRENT=<TARGET>-<VER>
# <TARGET>-<VER>: has gcc-specific variables (provided by sys-devel/gcc)
: ${ROOT:=/}
[[ ${ROOT} != */ ]] && ROOT="${ROOT}/"
[[ ${ROOT} != /* ]] && ROOT="${PWD%/}/${ROOT}"
BROOT="@GENTOO_EPREFIX@"
[[ ${BROOT} == @*@ ]] && BROOT=""
: ${EPREFIX="${BROOT}"}
EROOT="${ROOT%/}${EPREFIX}/"
export PORTAGE_CONFIGROOT="${EROOT}"
cd /
trap ":" INT QUIT TSTP
argv0=${0##*/}
functions_script="${BROOT}/lib/gentoo/functions.sh"
source "${functions_script}" || {
echo "${argv0}: Could not source ${functions_script}!" 1>&2
exit 1
}
esyslog() { :; }
has() { [[ " ${*:2} " == *" $1 "* ]]; }
die() { eerror "${argv0}: $*"; exit 1; }
umask 022
# *BSD SED does not work as-is, use GNU SED. TODO: find details.
SED=$(type -P gsed)
: ${SED:=$(type -P sed)}
# Further pain: `tac` is not available everywhere #390179
if ! type -P tac >/dev/null ; then
tac() { ${SED} -e '1!G;h;$!d' "$@" ; }
fi
PV="@PV@"
[[ ${PV} == @*@ ]] && PV="git"
ABI=${DEFAULT_ABI:-$(portageq envvar DEFAULT_ABI 2>/dev/null)}
LIBDIR_VAR=LIBDIR_${ABI}
GENTOO_LIBDIR=${!LIBDIR_VAR:-$(portageq envvar "${LIBDIR_VAR}" 2>/dev/null)}
[[ $? -ne 0 || -z ${GENTOO_LIBDIR} ]] && GENTOO_LIBDIR="@GENTOO_LIBDIR@"
[[ ${GENTOO_LIBDIR} == @*@ ]] && GENTOO_LIBDIR="lib"
usage() {
cat <<-EOF
Usage: gcc-config [options] [CC Profile]
gcc-config [options] --get-current-profile [CTARGET]
Change the current compiler profile, or give info about profiles.
Options:
-C, --nocolor Disable color output
-O, --use-old Use the old profile if one was selected.
-f, --force Make sure all config files are regenerated.
-c, --get-current-profile Print current used gcc profile.
-l, --list-profiles Print a list of available profiles.
-S, --split-profile Split profiles into their components
-E, --print-environ Print environment that can be used to setup the
current gcc profile, or a specified one.
-B, --get-bin-path Print path where binaries of the given/current
profile are located.
-L, --get-lib-path Print path where libraries of the given/current
profile are located.
Profile names are of the form: <CTARGET>-<version> (like 'i686-pc-linux-gnu-3.2.1')
<version> (like '3.2.1')
<profile-number> (as specified in '--list-profiles')
latest
<CTARGET>-latest (like mmix-latest)
EOF
exit ${1:-1}
}
[[ $# -lt 1 ]] && usage 1
# Usage: version_sorted_paths <CHOST>
# Returns paths ordered by version from olders to newest.
# We use the following hack: assume the input containst digits only in places of versions
# Normalizer:
# echo "hello-world-1.2.3.444.56778" | ${SED} -e 's/[0-9]\+/0000&/g' | ${SED} -e 's/0*\([0-9]\{4\}\)/\1/g'
# hello-world-0001.0002.0003.0444.56778
# That way we can have 9.0 < 10.0 order.
# TODO: explore how portable 'sort -V' is and try using that instead.
version_sorted_paths() {
local p mangled_v
for p in "$@"; do
# TODO: avoid -r
mangled_v=$(printf "%s" "${p}" |
${SED} -e 's/[0-9]\+/0000&/g' |
${SED} -e 's/0*\([0-9]\{4\}\)/\1/g'
)
printf "%s %s\n" "${mangled_v}" "${p}"
done | LANG=C sort | $SED -e 's/^.* //g'
}
# Usage: source_var <var> <file> [default value]
source_var() {
unset $1
local val=$(source "$2"; echo "${!1}")
: ${val:=$3}
eval $1=\"${val}\"
}
show_var() {
source_var "$@"
echo "${!1}"
}
source_profile() {
# Compatibility with profile files created before 2019-09-05.
# These profile files were setting PATH variable.
# Sourcing them without restoring previous PATH value breaks gcc-config.
local backup_PATH=${PATH}
source "$1"
PATH=${backup_PATH}
}
try_real_hard_to_find_CHOST() {
#
# First we read make.conf
#
local varname=${1:-CHOST}
local conf=${EROOT}/etc/portage/make.conf
if [[ ! -e ${conf} && -e ${EROOT}/etc/make.conf ]] ; then
conf=${EROOT}/etc/make.conf
fi
local ret=$(source "${conf}" 2>/dev/null ; echo ${!varname})
if [[ -z ${ret} ]] ; then
# newer portage supports spaces between the var and =
# CHOST = "this-is-silly"
ret=$(eval $(
${SED} -n \
-e 's:[[:space:]]::g' \
-e "/^${varname}=/p" \
"${conf}"
) ; echo ${!varname}
)
fi
if [[ -n ${ret} ]] ; then
echo ${ret}
return 0
fi
#
# Then we try /etc/env.d/gcc/config-${CTARGET}
#
if [[ -s ${EROOT}/etc/env.d/gcc/config-${CTARGET} ]] ; then
ret=$(split_gcc_ver $(show_var CURRENT "${EROOT}"/etc/env.d/gcc/config-${CTARGET}))
echo ${ret% *}
fi
}
get_chost() {
# If it's set in the env, trust the setting. If it's wrong,
# then that's the caller's problem.
[[ -n ${CHOST} ]] && return 0
export CHOST
# Make sure Portage isn't broken.
CHOST=$(portageq envvar CHOST 2>/dev/null)
if [[ $? -ne 0 || -z ${CHOST} ]] ; then
ewarn "Python or Portage seems to be broken, attempting to locate CHOST ourselves ..."
CHOST=$(try_real_hard_to_find_CHOST)
fi
if [[ -z ${CHOST} ]] ; then
eerror "${argv0}: Could not get portage CHOST!"
eerror "${argv0}: You should verify that CHOST is set in one of these places:"
eerror "${argv0}: - ${EROOT}/etc/portage/make.conf"
eerror "${argv0}: - active environment"
exit 1
fi
}
is_cross_compiler() {
[[ ${CC_COMP/${CHOST}} == ${CC_COMP} ]]
}
is_same_mountpoint() {
local file1=$1 file2=$2
if type -P findmnt > /dev/null ; then
local file1_mountpoint=$(findmnt -n -o TARGET -T "${file1}")
local file2_mountpoint=$(findmnt -n -o TARGET -T "${file2}")
[[ ${file1_mountpoint} == ${file2_mountpoint} ]]
return
else
local file1_check_file file2_check_file result
if [[ -d ${file1} ]] ; then
file1_check_file=${file1}/.gcc.config.mountpoint_check_file1.$$
else
file1_check_file=${file1%/*}/.gcc.config.mountpoint_check_file1.$$
fi
if [[ -d ${file2} ]] ; then
file2_check_file=${file2}/.gcc.config.mountpoint_check_file2.$$
else
file2_check_file=${file2%/*}/.gcc.config.mountpoint_check_file2.$$
fi
rm -f "${file1_check_file}" "${file2_check_file}"
touch "${file1_check_file}"
ln "${file1_check_file}" "${file2_check_file}" 2> /dev/null
result=$?
rm -f "${file1_check_file}" "${file2_check_file}"
return ${result}
fi
}
# Usage: atomic_ln <source file> <destination dir> <destination file name>
atomic_ln() {
local src=$1 dst=$2 dstfile=$3 tmp
tmp="${dst}/.gcc.config.${dstfile}"
# `ln` will expand into unlink();symlink(); which
# is not atomic for a small amount of time, but
# `mv` is a single rename() call
ln -sf "${src}" "${tmp}"
mv "${tmp}" "${dst}/${dstfile}"
}
uniq_wrapper_list() {
local ver=$1; shift
# We want to normalize away existing target prefix.
set -- "${@#${CTARGET}-*}"
# And we want to filter out any version suffixed progs.
set -- "${@//*-${ver}}"
# Finally, filter out dupes.
printf '%s\n' "$@" | sort -u
}
update_wrappers() {
# Update the wrappers for this profile. We need to clean out
# the old wrappers if the functionality no longer exists (like
# re-emerging gcc with diff USE flags) and install new wrappers
# for new functionality (like a version bump).
local x CTARGET=$1
# Facts on gcc's private binary dir contents:
#
# Native directory looks like:
# /usr/x86_64-pc-linux-gnu/gcc-bin/11.0.0
# Contents looks like:
# - 'foo' ('gcc', 'c++', 'gcc-ar', 'lto-dump')
# - 'foo-${v}' (go-11, gofmt-11)
# - ${CTARGET}-foo ('${CTARGET}-gcc', ...)
#
# Not each 'foo' has it's ${CTARGET}-foo match.
# Examples are:
# - lto-dump, gcov-dump, gcov-tool (no ${CTARGET}-lto-dump equvalent)
# - go-${MAJOR}, gofmt-${MAJOR} (no ${CTARGET}-go-${MAJOR} equivalent)
# - ${CTARGET}-gcc-11.0.0 (no gcc-11.0.0 equivalent)
# TODO: is it a gcc or toolchain.eclass bug?
#
# Cross directory looks like:
# /usr/x86_64-pc-linux-gnu/ia64-unknown-linux-gnu/gcc-bin/10.1.0
# Contents look like:
# - ${CTARGET}-foo ('${CTARGET}-gcc', ...)
#
# Every tool is prefixed.
# Use the old dir to see what we wrapped up previously.
local old_wrappers=( $(
[[ -n ${OLD_GCC_PATH} ]] || exit 1
uniq_wrapper_list "${OLD_CC_COMP_VERSION}" $(
cd "${ROOT}${OLD_GCC_PATH}" 2>/dev/null || exit 1
echo *
)
) )
# See what new stuff we need to wrap up.
local new_wrappers=( $(
uniq_wrapper_list "${CC_COMP_VERSION}" $(
cd "${ROOT}${GCC_PATH}" || exit 1
echo *
)
) )
[[ -z ${new_wrappers} ]] && return 1
# First delete the wrappers that the old one provided but the
# new ones do not.
for x in "${old_wrappers[@]}" ; do
has "${x}" "${new_wrappers[@]}" && continue
rm -f "${EROOT}usr/bin/${x}" "${EROOT}usr/bin/${CTARGET}-${x}"
done
# For all toolchains, we want to create the fully qualified
# `tuple-foo`. Only native ones do we want the simple `foo`
# and only for USE_NATIVE_LINKS=yes mode.
local all_wrappers=( ${new_wrappers[@]/#/${CTARGET}-} )
if ! is_cross_compiler ; then
all_wrappers+=( "${new_wrappers[@]}" )
if [[ ${USE_CC_WRAPPERS} == "yes" ]]; then
# There are a few fun extra progs which we have to handle #412319
all_wrappers+=( cc:gcc f77:g77 )
fi
fi
# Then install wrappers for anything new to this profile.
local ref
for x in "${all_wrappers[@]}" ; do
# We want to figure out the 'reference file' for each
# wrapper (the binary we're 'wrapping') so that we can
# sync mtimes together. This makes things like ccache
# happy. See Bug #70548 for more info.
#
# x=cc:gcc -> ref=/path/to/gcc
ref="${ROOT}${GCC_PATH}/${x#*:}"
# x=cc:gcc -> x=cc
x=${x%:*}
if [[ ! -x ${ref} ]] ; then
if is_cross_compiler ; then
ewarn "insanity with ${x} and ${ref}"
else
# For native targets, the ref might not be
# fully qualified, so use the short name.
ref="${ROOT}${GCC_PATH}/${x#${CTARGET}-}"
fi
fi
# Now do the actual linking to the target binary
if [[ ${x#${CTARGET}-} == ${x} && ${USE_NATIVE_LINKS} != yes ]]; then
# Delete stale native symlink.
rm -f "${EROOT}usr/bin/${x}"
elif [[ -x ${ref} ]] ; then
atomic_ln "${ref#${ROOT}}" "${EROOT}usr/bin" "${x}"
else
# Make sure we have no stale wrappers
rm -f "${EROOT}usr/bin/${x}"
fi
done
# Legacy cruft, make sure we don't leave it laying around, as we used to install
# genuine wrappers like python-exec, bug #143205
rm -f "${EROOT}usr/bin/${CTARGET}-cc" "${EROOT}usr/bin"/{${CTARGET}-,}g{cc,++}{32,64}
# But create our own ${CTARGET}-cc in /usr/bin to avoid fallbacks
# to the symlinks LLVM creates (sys-devel/clang-toolchain-symlinks).
# bug #872416.
atomic_ln "${CTARGET}-gcc" "${EROOT}usr/bin" "${CTARGET}-cc"
# handle the canonical cpp wrapper
if ! is_cross_compiler ; then
if [[ ${USE_NATIVE_LINKS} == yes ]]; then
atomic_ln "${EPREFIX%/}/usr/bin/${CTARGET}-cpp" "${EROOT}lib" "cpp"
else
rm -f "${EROOT}lib/cpp"
fi
fi
# handle c89 and c99 wrappers
if ! is_cross_compiler ; then
if [[ ${USE_NATIVE_LINKS} == yes ]]; then
# In June 2020 gcc-config taken over file handling from toolchain.eclass.
cp -fpP "${EROOT}"usr/share/gcc-config/c89 "${EROOT}"usr/bin/c89
cp -fpP "${EROOT}"usr/share/gcc-config/c99 "${EROOT}"usr/bin/c99
else
rm -f "${EROOT}"usr/bin/c89
rm -f "${EROOT}"usr/bin/c99
fi
fi
}
mv_if_diff() {
if cmp -s "$1" "$2" ; then
rm -f "$1"
return 0
else
mv -f "$1" "$2"
return 1
fi
}
handle_split_usr() {
# We need to make sure that libgcc_s.so / libunwind.so make it into /lib.
# On many systems (x86/amd64/etc...), this will probably never matter,
# but on other systems (arm/mips/etc...), this is quite critical.
# http://bugs.gentoo.org/60190
#
# Note: libunwind.so.7 is a DT_NEEDED dependency only on ia64 systems
# where libunwind.so.7 is provided by gcc itself, see:
# https://bugs.gentoo.org/667020
# https://bugs.gentoo.org/693252
#
# The funky move magic is required for proper updating of in-use files.
# Gentoo Prefix systems don't "boot", so no need to handle split-/usr
[[ -n ${EPREFIX} ]] && return 0
# We use the same ordering logic as mentioned in the MY_LDPATH setup.
# We get the libs from the latest version available.
local LDPATH
eval $(grep -h '^LDPATH=' $(version_sorted_paths "${GCC_ENV_D}"/${CHOST}-*) | tail -1)
LDPATH=${LDPATH%%:*}
# If GCC directory is not in separate mountpoint than /lib,
# then do not bother with copying libraries to /lib.
if is_same_mountpoint "${EROOT}/lib" "${ROOT}/${LDPATH}" ; then
local lib old_libs=0 saved_nullglob=$(shopt -p nullglob)
shopt -s nullglob
for lib in "${EROOT}"/lib*/libgcc_s{.so*,*dylib} "${EROOT}"/lib*/libunwind.so.7* ; do
# If we previously had stuff in /, make sure ldconfig gets re-run.
einfo "Removing '${lib}'"
rm -f "${lib}"
old_libs=1
done
${saved_nullglob}
return ${old_libs}
fi
# Only bother with this stuff for the native ABI. We assume the user
# doesn't have critical binaries for non-native ABIs which is fair.
local gcclib
local libdir="${EROOT}${GENTOO_LIBDIR}"
mkdir -p "${libdir}"/.gcc.config.new || return 0 # !?!?!
for gcclib in gcc_s unwind ; do
# This assumes that we always have the .so symlink,
# but for now, that should be safe ...
for gcclib in "${ROOT}${LDPATH}"/lib${gcclib}.so.* ; do
[[ -e ${gcclib} ]] || continue
einfo "Backing up '${gcclib}' to '${libdir}'"
cp -pP "${gcclib}" "${libdir}"/.gcc.config.new/
# no need to sanity `rm` this as the `mv` should take care
# of it. we also need this step to be completely atomic
# for systems that have even `mv` linked against libgcc_s.so.
# http://bugs.gentoo.org/150257
mv -f "${libdir}"/.gcc.config.new/* "${libdir}"/
done
done
rmdir "${libdir}"/.gcc.config.new
return 0
}
prefix_copy_gcc_libs() {
# no business here if not Prefix
[[ -z ${EPREFIX} ]] && return 0
# To emulate properly what ld.so.conf magic does for non-prefix,
# we have to copy the libs of all installed (native) GCC's and
# make sure we do the current one as last, such that the
# pointers for the unversioned libs point to the currently
# selected version. This is only necessary for platforms that use
# shared libs, and only record the object name (not the full path).
case ${CHOST} in
*-mint*)
# static only, nothing to do here
return 0
;;
*-darwin*)
# Mach-O records all references with full path, hence each
# object has links to the GCC-specific version of the lib.
return 0
;;
esac
# dstlibgcc location is added to RPATH by the binutils wrapper
local dstlibgcc=${EROOT}/usr/${CHOST}/lib/gcc
# Prepare empty directories first
local temporary=.gcc.config.new
rm -rf "${dstlibgcc}"/${temporary} || return 1
mkdir -p "${dstlibgcc}"/${temporary} || return 1
local LIBSUFFIX
case ${CHOST} in
*-aix*)
LIBSUFFIX="a"
AIXLIBS=
do_single_runtime() {
local sourcedir=$1; shift
local libname=$1; shift
local targetdir=$1; shift
local finaldir=$1; shift
aixdll \
--merge-runtime \
--finish=false \
--target="${targetdir}"/lib${libname}.${LIBSUFFIX} \
"${sourcedir}"/lib${libname}.${LIBSUFFIX} \
|| return 1
[[ ${AIXLIBS} == *":${targetdir}/lib${libname}.${LIBSUFFIX}:"* ]] \
|| AIXLIBS="${AIXLIBS}:${targetdir}/lib${libname}.${LIBSUFFIX}:"
}
finish_runtime_dir() {
local sourcedir=$1; shift
local targetdir=$1; shift
local cleanup=$1; shift
local f save_IFS
save_IFS=$IFS; IFS=:
for f in ${AIXLIBS}; do
IFS=$save_IFS
[[ -n ${f} ]] || continue
aixdll \
--finish-merge \
--keepdir=false \
"${f}" \
|| return 1
done
IFS=$save_IFS
unset AIXLIBS
finish_runtime_dir_elf \
"${sourcedir}" \
"${targetdir}" \
${cleanup} \
|| return 1
}
;;
hppa64*-hpux*)
LIBSUFFIX="sl"
do_single_runtime() {
do_single_runtime_elf "$@"
}
finish_runtime_dir() {
finish_runtime_dir_elf "$@"
}
;;
hppa*-hpux*)
LIBSUFFIX="sl"
do_single_runtime() {
local sourcedir=$1; shift
local libname=$1; shift
local targetdir=$1; shift
local finaldir=$1; shift
# when using some simple shell script wrappers (again :)),
# there may be no libs around!
if [[ -n $(ls "${sourcedir}"/lib${libname}.*${LIBSUFFIX}* 2>/dev/null) ]]; then
cp -fpP "${sourcedir}"/lib${libname}.*${LIBSUFFIX}* "${targetdir}" || return 1
# gcc creates "libgcc_s.4" with symlink "libgcc_s.sl -> libgcc_s.4", and
# we patch it to also set the 'internal name' (=soname) (gcc-PR40913).
if [[ ${libname} == 'gcc_s' ]]; then
if [[ -n $(ls "${sourcedir}"/lib${libname}.[0-9] 2>/dev/null) ]]; then
cp -fpP "${sourcedir}"/lib${libname}.[0-9] "${targetdir}" || return 1
fi
fi
# we do not need the unversioned lib, as linking
# is done against the used gcc's private copy.
rm -f "${targetdir}"/lib${libname}.${LIBSUFFIX} || return 1
fi
}
finish_runtime_dir() {
finish_runtime_dir_elf "$@"
}
;;
*)
LIBSUFFIX="so"
do_single_runtime() {
do_single_runtime_elf "$@"
}
finish_runtime_dir() {
finish_runtime_dir_elf "$@"
}
;;
esac
do_single_runtime_elf() {
local sourcedir=$1; shift
local libname=$1; shift
local targetdir=$1; shift
local finaldir=$1; shift
# when using some simple shell script wrappers (again :)),
# there may be no libs around!
if [[ -n $(ls "${sourcedir}"/lib${libname}.*${LIBSUFFIX}* 2>/dev/null) ]]; then
cp -fpP "${sourcedir}"/lib${libname}.*${LIBSUFFIX}* "${targetdir}" || return 1
# we do not need the unversioned lib, as linking
# is done against the used gcc's private copy.
rm -f "${targetdir}"/lib${libname}.${LIBSUFFIX} || return 1
fi
}
finish_runtime_dir_elf() {
local sourcedir=$1; shift
local targetdir=$1; shift
local cleanup=$1; shift
if [[ ${cleanup} == clean ]]; then
for f in "${targetdir}"/*; do
[[ ${f} == ${sourcedir} ]] && continue
[[ -e "${sourcedir}/${f##*/}" ]] && continue
rm -f "${f}"
done
fi
# move symlinks first:
# because of file ordering, the real files may be
# moved before the symlinks, causing the symlinks
# going broken.
for f in "${sourcedir}"/*; do
[[ -e ${f} && -L ${f} ]] || continue
# use backups: hpux cannot overwrite sharedlibs in use: "Text file busy"
rm -f "${targetdir}"/${f##*/}*'~' >/dev/null 2>&1
mv -f --backup=numbered --suffix='~' "${f}" "${targetdir}"/${f##*/} || return 1
rm -f "${targetdir}"/${f##*/}*'~' >/dev/null 2>&1
done
for f in "${sourcedir}"/*; do
[[ -f "${f}" ]] || continue
# use backups: hpux cannot overwrite sharedlibs in use: "Text file busy"
rm -f "${targetdir}"/${f##*/}*'~' >/dev/null 2>&1
mv -f --backup=numbered --suffix='~' "${f}" "${targetdir}"/${f##*/} || return 1
rm -f "${targetdir}"/${f##*/}*'~' >/dev/null 2>&1
done
rmdir "${sourcedir}"
}
# We don't rely on iteration order here.
local GCC_PROFILES=$(LC_ALL="C" ls ${GCC_ENV_D}/${CHOST}-*)
local targetdirs= GCC_PATH= LDPATH=
for x in ${GCC_PROFILES} ; do
unset GCC_PATH LDPATH
eval $(
source_profile "${x}"
echo "GCC_PATH='${GCC_PATH}'"
echo "LDPATH='${LDPATH%%:*}'"
)
pushd "${ROOT%/}${LDPATH}" > /dev/null || return 1
local donelibs= lib= gcclib=
for lib in lib*.${LIBSUFFIX}; do
gcclib=${lib#lib}
gcclib=${gcclib%.${LIBSUFFIX}}
gcclib=${gcclib%%.[0-9]*} # we need the unversioned libname.
[[ ${donelibs} != *" ${gcclib} "* ]] || continue
donelibs="${donelibs} ${gcclib} "
[[ ${targetdirs} == *":${dstlibgcc},clean:"* ]] ||
targetdirs="${targetdirs}:${dstlibgcc},clean:"
do_single_runtime \
"${ROOT%/}${LDPATH}" \
${gcclib} \
"${dstlibgcc}"/${temporary} \
"${dstlibgcc}" \
|| return 1
done
popd > /dev/null
done
local clean= targetdir=
local save_IFS=$IFS
IFS=:
for targetdir in ${targetdirs}; do
IFS=${save_IFS}
[[ -n ${targetdir} ]] || continue
# eventually cleanup old files
clean=${targetdir##*,}
targetdir=${targetdir%,*}
finish_runtime_dir \
"${targetdir}"/${temporary} \
"${targetdir}" \
${clean} \
|| return 1
done
IFS=${save_IFS}
}
switch_profile() {
local OLD_CC_COMP OLD_CC_COMP_VERSION OLD_GCC_PATH OLD_GCC_VER
local GCC_PATH
# Make sure we have write access to the dirs. Do not require `root`
# so that we work with prefix/cross/etc... setups that run as user.
#
# [It's important we use ${ENV_D} and not e.g. ${EROOT} because for, say
# SELinux, we may not actually be able to write to ${EROOT}, but would
# be allowed for specific paths like the gcc wrappers we need to
# modify. bug #823203.]
[[ ! -w ${ENV_D} ]] && die "need write access to ${ENV_D}"
if is_cross_compiler ; then
ebegin "Switching cross-compiler to ${CC_COMP}"
else
ebegin "Switching native-compiler to ${CC_COMP}"
fi
# Setup things properly again for this profile
unset GCC_SPECS LDPATH MULTIOSDIRS
source_profile "${GCC_ENV_D}/${CC_COMP}"
# Support older configs that did not setup MULTIOSDIRS for us.
: ${MULTIOSDIRS:=../${GENTOO_LIBDIR}}
# Ignore active profile errors here since we're switching away
OLD_CC_COMP=$(get_current_profile 2>/dev/null)
if [[ -f ${GCC_ENV_D}/${OLD_CC_COMP} ]] ; then
OLD_GCC_PATH=$(show_var GCC_PATH "${GCC_ENV_D}/${OLD_CC_COMP}")
OLD_GCC_VER=$(show_var GCC_VER "${GCC_ENV_D}/${OLD_CC_COMP}")
fi
OLD_CC_COMP_VERSION=${OLD_GCC_VER:-$(chop_gcc_ver_spec ${OLD_CC_COMP})}
# GCC_SPECS have long been stable, and people messing with
# them know better than to install bad paths, so don't bother
# with sanity checks anymore.
echo "CURRENT=${CC_COMP}" > "${GCC_ENV_D}/config-${CTARGET}"
# Give native configs slight distinction from cross-compilers
# by giving it higher priority.
local envd envd_num envd_changed=0
is_cross_compiler && envd_num="05" || envd_num="04"
envd="${ENV_D}/${envd_num}gcc-${CTARGET}"
cat <<-EOF > "${envd}.tmp"
# Autogenerated by 'gcc-config'.
EOF
if ! is_cross_compiler ; then
# Only write GCC_SPECS for the native compiler. #420097
# Otherwise, the env.d of cross-compilers come after the
# native one and overrides the native setting. Further,
# we don't support GCC_SPECS with cross-compilers, so
# writing out that settings doesn't make much sense.
printf 'GCC_SPECS="%s"\n' "${GCC_SPECS}" >> "${envd}.tmp"
# Regardless of the profile selected, keep the runtime lookup
# paths stable. Otherwise, all the apps that were built with
# a new compiler will start trying to use older versions of
# the libs, and life gets sad. We work off the assumption
# that every shared library gcc ships is ABI compatible (as
# is the point of SONAMEs). We don't have to worry about
# static libraries here as gcc itself will take care of
# linking against its own internal paths first. #297685
local MY_LDPATH
MY_LDPATH=$(${SED} -n \
-e '/^LDPATH=/{s|LDPATH=||;s|"||g;s|:|\n|g;p}' \
$(version_sorted_paths "${GCC_ENV_D}"/${CHOST}-* | tac)
)
# Pass all by default
awk '!/^(STDCXX_INCDIR|LDPATH|CC|CXX|CTARGET|GCCBITS|GCC_SPECS|GCC_PATH|MULTIOSDIRS)=/ {print $0}' \
"${GCC_ENV_D}/${CC_COMP}" >> "${envd}.tmp"
if [[ -d ${EROOT}/etc/ld.so.conf.d ]] ; then
echo "${MY_LDPATH}" > "${EROOT}"/etc/ld.so.conf.d/05gcc-${CTARGET}.conf
else
echo "LDPATH=\"${MY_LDPATH}\"" >> "${envd}.tmp"
fi
# Punt old files; maybe globs too much, but oh well
# 'NATIVE' and '.NATIVE' were used by gcc-wrapper before Aug 2018
# and are not used as wrapper is removed.
# '.NATIVE' was created before Sept 2019.
# We clean up both for now. Should be safe to remove in 2021.
rm -f \
"${GCC_ENV_D}/NATIVE" "${GCC_ENV_D}/.NATIVE" \
"${ENV_D}/05gcc" "${ENV_D}/05gcc-${CTARGET}" \
"${ENV_D}/05gcc-${CTARGET}"-* "${GCC_ENV_D}/config-${CTARGET}"-*
# Relocate random crap
local x libdir pkgconfdir
local mver=${CC_COMP_VERSION:0:3}
for libdir in ${MULTIOSDIRS//:/ } ; do
pkgconfdir="${EROOT}/usr/lib/${libdir}/pkgconfig"
for x in "" "-${mver}" ; do
x="${pkgconfdir}/libgcj${x}.pc"
if [[ -e ${pkgconfdir}/libgcj-${CC_COMP_VERSION}.pc ]] ; then
ln -sf libgcj-${CC_COMP_VERSION}.pc "${x}"
else
# Maybe we selected a version that lacks gcj support.
rm -f "${x}"
fi
done
# Clean out anything left over from older versions. #430932
find "${pkgconfdir}"/libgcj*.pc -xtype l -delete 2>/dev/null
done
# Only update the file if it already exists to allow us to
# walk it back if necessary by dropping it from clang-common.
# See bug #868639 for background.
if [[ -f "${EROOT}/etc/clang/gentoo-gcc-install.cfg" ]] ; then
local gcc_lib_path="$(get_lib_path)"
gcc_lib_path="${gcc_lib_path%%:*}"
cat > "${EROOT}/etc/clang/gentoo-gcc-install.cfg.tmp" <<-EOF
# This file is maintained by gcc-config.
# It is used to specify the selected GCC installation.
--gcc-install-dir="${gcc_lib_path}"
EOF
mv_if_diff "${EROOT}/etc/clang/gentoo-gcc-install.cfg.tmp" "${EROOT}/etc/clang/gentoo-gcc-install.cfg"
fi
prefix_copy_gcc_libs
handle_split_usr
: $(( envd_changed += $? ))
mv_if_diff "${envd}.tmp" "${envd}"
: $(( envd_changed += $? ))
else
# cross-case
# env.d file is empty since Aug 2018 and is cleaned up by
# gcc-config since Sept 2019. Should be safe to remove in 2021.
rm -f "${envd}.tmp" "${envd}"
fi
update_wrappers ${CTARGET}
# Update LTO plugin for GCC. Supported as of binutils 2.25.
local BFD_PLUGINS_DIR
local LIBLTO_PLUGIN
if is_cross_compiler; then
BFD_PLUGINS_DIR="${EROOT}usr/${CHOST}/${CTARGET}/binutils-bin/lib/bfd-plugins"
LIBLTO_PLUGIN="../../../../../libexec/gcc/${CTARGET}/${CC_COMP_VERSION}/liblto_plugin.so"
else
BFD_PLUGINS_DIR="${EROOT}usr/${CHOST}/binutils-bin/lib/bfd-plugins"
LIBLTO_PLUGIN="../../../../libexec/gcc/${CTARGET}/${CC_COMP_VERSION}/liblto_plugin.so"
fi
mkdir -p "${BFD_PLUGINS_DIR}"
ln -sf "${LIBLTO_PLUGIN}" "${BFD_PLUGINS_DIR}"
if [[ ${ROOT} == "/" ]] && \
[[ ${FORCE} == "yes" || ${envd_changed} -gt 0 ]]
then
# in case python is broken ...
if ! env-update ; then
echo ""
ewarn "env-update failed to work properly; making sure ld.so.conf paths"
ewarn "are setup properly. Please rerun gcc-config with the -f option."
echo ""
if [[ -z ${EPREFIX} ]] ; then
if [[ ! -d /etc/ld.so.conf.d ]] ; then
show_var LDPATH "${ROOT}"/etc/env.d/05gcc-${CTARGET} \
| ${SED} -e 's|:|\n|g' >> /etc/ld.so.conf
fi
ldconfig
fi
fi
else
envd_changed=0
fi
eend 0
# This is needed mainly for MANPATH and INFOPATH updates.
if [[ ${envd_changed} -ne 0 ]] ; then
echo
ewarn "If you intend to use the gcc from the new profile in an already"
ewarn "running shell, please remember to do:"
echo
ewarn " . ${EPREFIX}/etc/profile"
echo
fi
return 0
}
get_current_profile() {
local conf="${GCC_ENV_D}/config-${CTARGET}"
if [[ ! -f ${conf} ]] ; then
eerror "${argv0}: No gcc profile is active!"
return 1
fi
source_var CURRENT "${conf}"
if [[ -z ${CURRENT} ]] ; then
eerror "${argv0}: No gcc profile is active!"
return 1
elif [[ ! -f ${GCC_ENV_D}/${CURRENT} ]] ; then
eerror "${argv0}: Active gcc profile is invalid!"
return 1
fi
echo "${CURRENT}"
return 0
}
list_profiles() {
local i=0
local filter=
if [[ ${ROOT} != "/" ]] ; then
echo "Using gcc-config info in ${ROOT}"
fi
if [[ ! -f ${GCC_ENV_D}/config-${CTARGET} ]] ; then
# get_current_profile already warns
#eerror "${argv0}: No gcc profile is active; please select one!"
filter=${CTARGET}
fi
source_var CURRENT "${GCC_ENV_D}"/config-${CTARGET}
CURRENT_NATIVE=${CURRENT}
local target=
for x in $(version_sorted_paths "${GCC_ENV_D}"/*) ; do
[[ -f ${x} ]] || continue
[[ ${x} == */config* ]] && continue
source_var CTARGET "${x}"
# Older native profiles would not set CTARGET.
if [[ -z ${CTARGET} ]] ; then
if [[ ${x} == */${CHOST}-* ]] ; then
CTARGET=${CHOST}
else
ewarn "broken config file: ${x}"
fi
fi
((++i))
[[ -n ${filter} ]] && [[ ${filter} != ${CTARGET} ]] && continue
if [[ ${target} != ${CTARGET} ]] ; then
[[ ${i} -gt 1 ]] && echo
target=${CTARGET}
CTARGET=""
fi
x=${x##*/}
if [[ ${x} == ${CURRENT_NATIVE} ]] ; then
x="${x} ${GOOD}*${NORMAL}"
elif [[ -e ${GCC_ENV_D}/config-${target} ]] ; then
source_profile "${GCC_ENV_D}/config-${target}"
[[ ${x} == ${CURRENT} ]] && x="${x} ${HILITE}*${NORMAL}"
fi
echo " [${i}] ${x}"
done
}
print_environ() {
local ENV_CMD SET_ELEMENT
case ${SHELL} in
*/csh|*/tcsh)
ENV_CMD="setenv"
SET_ELEMENT=" "
;;
*)
ENV_CMD="export"
SET_ELEMENT="="
;;
esac
local var
for var in GCC_SPECS GCC_PATH ; do
local ${var}
source_var ${var} "${GCC_ENV_D}/${CC_COMP}"
done
(
[[ -n ${GCC_PATH} ]] && PATH=${GCC_PATH}:${PATH}
for var in PATH GCC_SPECS ; do
echo "${ENV_CMD} ${var}${SET_ELEMENT}\"${!var}\""
done
)
}
get_bin_path() { show_var GCC_PATH "${GCC_ENV_D}/${CC_COMP}" ; }
get_lib_path() { show_var LDPATH "${GCC_ENV_D}/${CC_COMP}" ; }
split_gcc_ver() {
# Split up the gcc profile into components:
# TARGET-VER[-specs] -> TARGET VER [specs]
# arm-linux-3.3.6 -> arm-linux 3.3.6
# x86_64-linux-4.0.1-pre1234 -> x86_64-linux 4.0.1-pre1234
# sh-linux-3.4.4-hardened -> sh-linux 3.4.4 hardened
#
# So below we will start at the end and run a small state machine ...
# specs [3]
# accept everything
# specs -> version transition [3->2]
# when we find a version component
# version [2]
# accept only version components (see the regex)
# version -> target transition [2->1]
# when we hit a non version component
# target [1]
# accept everything we have left
#
echo "$@" | awk -F- '
function pushit(onme, pushee) {
return (onme == "" ? pushee : pushee"-"onme);
}
{
state=3
targ=""
ver=""
spec=""
for (i=NF; i > 0; --i) {
if (state >= 2) {
if ($i ~ /^(alpha|beta|pre|rc|p)?[[:digit:].]+$/) {
ver=pushit(ver, $i)
state=2
} else if (state == 3)
spec=pushit(spec, $i)
else
state=1
}
if (state == 1)
targ = pushit(targ, $i)
}
if (targ == "") {
if (ver == "") {
ver=spec
spec=""
}
targ=ver
ver=""
}
print targ " " ver (spec != "" ? " " spec : "")
}'
}
chop_gcc_ver_spec() {
local splitTED=$(split_gcc_ver "$@") # target ver spec
splitTED=${splitTED#* } # ver spec
echo ${splitTED/ /-} # ver-spec
}
set_doit() {
[[ -n ${DOIT} ]] && die "too many actions selected!"
DOIT=$1
}
DOIT=""
FORCE="no"
CC_COMP=
ENV_D="${EROOT}etc/env.d"
GCC_ENV_D="${ENV_D}/gcc"
USE_NATIVE_LINKS="@USE_NATIVE_LINKS@"
USE_CC_WRAPPERS="@USE_CC_WRAPPERS@"
for x in "$@" ; do
case "${x}" in
# Only use specified compiler if one is not already selected.
-O|--use-old)
: ${CTARGET:=$(try_real_hard_to_find_CHOST)}
if get_current_profile &>/dev/null ; then
CC_COMP=$(get_current_profile)
else
die "No profile selected, unable to utilize --use-old"
fi
;;
-f|--force)
FORCE="yes"
;;
-c|--get-current-profile)
set_doit get_current_profile
;;
-l|--list-profiles)
set_doit list_profiles
;;
-S|--split-profile)
if [[ ( $1 != "-S" && $1 != "--split-profile" ) || $# -eq 1 ]] ; then
usage 1
fi
shift # push -S out
for x in "$@" ; do
split_gcc_ver ${x}
done
exit 0
;;
-E|--print-environ)
set_doit print_environ
;;
-B|--get-bin-path)
set_doit get_bin_path
;;
-L|--get-lib-path)
set_doit get_lib_path
;;
-x|--debug)
set -x
;;
-C|--nocolor)
# nothing to do; functions.sh parsed this for us
;;
-h|--help)
usage 0
;;
-V|--version)
echo "${argv0}: @PV@"
exit 0
;;
--enable-native-links) USE_NATIVE_LINKS="yes" ;;
--disable-native-links) USE_NATIVE_LINKS="no" ;;
--enable-cc-wrappers) USE_CC_WRAPPERS="yes" ;;
--disable-cc-wrappers) USE_CC_WRAPPERS="no" ;;
-*)
die "Invalid switch! Run ${argv0} without parameters for help."
;;
*)
if [[ -n ${CC_COMP} ]] ; then
die "Too many arguments! Run ${argv0} without parameters for help."
fi
if [[ -z $(echo ${x} | tr -d '[:digit:]') ]] ; then
# User gave us a profile index number from '--list-profiles'
i=1
for y in $(version_sorted_paths "${GCC_ENV_D}"/*) ; do
[[ -f ${y} ]] || continue
[[ ${y} == */config* ]] && continue
if [[ -f ${y} ]] && [[ ${x} == ${i} ]] ; then
CC_COMP=${y##*/}
break
fi
((++i))
done
if [[ -z ${CC_COMP} ]] ; then
die "Could not locate profile #$x !"
fi
else
# User gave us "latest" or "<CTARGET>-latest".
if [[ ${x} == latest ]]; then
get_chost
x=$(version_sorted_paths "${GCC_ENV_D}"/${CHOST}-* | tail -1)
elif [[ ${x} == *-latest ]]; then
x=$(version_sorted_paths "${GCC_ENV_D}"/${x%-latest}-* | tail -1)
fi
# User gave us a full <CTARGET-version>, <CTARGET> or <version>
x=${x##*/}
if [[ ${DOIT} == "get_current_profile" && -z $(ls "${GCC_ENV_D}"/${x}-* 2>/dev/null) ]] || \
[[ ${DOIT} != "get_current_profile" && ! -f ${GCC_ENV_D}/${x} ]]
then
# Maybe they just gave us a <version>. Infer <CTARGET>.
get_chost
if [[ -f ${GCC_ENV_D}/${CHOST}-${x} ]] ; then
x=${CHOST}-${x}
else
die "Could not locate '$x' in '${GCC_ENV_D}/' !"
fi
fi
CC_COMP=${x}
fi
;;
esac
done
[[ -z ${DOIT}${CC_COMP} ]] && usage 1
: ${DOIT:="switch_profile"}
get_chost
[[ ${DOIT} == "get_current_profile" ]] \
&& : ${CTARGET:=${CC_COMP:-${CHOST}}} \
|| : ${CTARGET:=${CHOST}}
if [[ -z ${CC_COMP} ]] ; then
CC_COMP=$(get_current_profile)
if [[ $? -ne 0 ]] ; then
echo "${CC_COMP}"
list_profiles
exit 1
fi
fi
if [[ ${DOIT} != "get_current_profile" ]] ; then
GCC_LIB=$(
get_lib_path | \
${SED} -e "s|${EPREFIX:-/}/*|/|g" | \
awk -F/ '{ print "/"$2"/"$3"/"$4"/" }'
)
# For people who insist on using funky version strings ("4.6.x"
# rather than "4.6.2"), allow them to manually specify it.
source_var GCC_VER "${GCC_ENV_D}/${CC_COMP}"
CC_COMP_VERSION=${GCC_VER:-$(chop_gcc_ver_spec ${CC_COMP})}
CC_COMP_TARGET=$(show_var CTARGET "${GCC_ENV_D}/${CC_COMP}")
if [[ -z ${CC_COMP_TARGET} ]] ; then
# Native configs don't have CTARGET in there.
CC_COMP_TARGET=${CC_COMP%-${CC_COMP_VERSION}*}
fi
if [[ ! -d ${EROOT}/${GCC_LIB}/${CC_COMP_TARGET}/${CC_COMP_VERSION} ]] ; then
CC_COMP_VERSION=${CC_COMP_VERSION%-*}
fi
if [[ ! -f ${GCC_ENV_D}/${CC_COMP} ]] ; then
eerror "${argv0}: Profile '${GCC_ENV_D}/${CC_COMP}' does not exist" 1>&2
#exit 1
fi
if [[ ! -d ${EROOT}/${GCC_LIB}/${CC_COMP_TARGET}/${CC_COMP_VERSION} ]] ; then
eerror "${argv0}: Did not find compiler at '${EROOT}/${GCC_LIB}/${CC_COMP_TARGET}/${CC_COMP_VERSION}'" 1>&2
#exit 1
fi
fi
${DOIT}
# vim:ts=4
|