[MacPorts] #69000: libcxx-powerpc: can we get rid of depending on system libstdc++ completely?
MacPorts
noreply at macports.org
Sat Dec 30 01:42:52 UTC 2023
#69000: libcxx-powerpc: can we get rid of depending on system libstdc++ completely?
-----------------------------+-------------------------------------------
Reporter: barracuda156 | Owner: catap
Type: defect | Status: assigned
Priority: Normal | Milestone:
Component: ports | Version: 2.8.1
Resolution: | Keywords: leopard, snowleopard, powerpc
Port: libcxx-powerpc |
-----------------------------+-------------------------------------------
Description changed by barracuda156:
Old description:
> So I tried to build `icu` against `libcxx` on PowerPC. Here linking
> failed:
> {{{
> /opt/local/bin/g++-mp-12 -dynamiclib -dynamic -pipe -Os -arch ppc -W
> -Wall -pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long -std=c++11
> -fvisibility=hidden -Wl,-headerpad_max_install_names -stdlib=libc++
> -L/opt/local/libexec/llvm-7.1.1/lib -lc++ -arch ppc
> -Wl,-compatibility_version -Wl,74 -Wl,-current_version -Wl,74.1
> -install_name /opt/local/lib/libicuuc.74.dylib -o
> ../lib/libicuuc.74.1.dylib appendable.o bmpset.o brkeng.o brkiter.o
> bytesinkutil.o bytestream.o bytestrie.o bytestriebuilder.o
> bytestrieiterator.o caniter.o characterproperties.o chariter.o charstr.o
> cmemory.o cstr.o cstring.o cwchar.o dictbe.o dictionarydata.o dtintrv.o
> edits.o emojiprops.o errorcode.o filteredbrk.o filterednormalizer2.o
> icudataver.o icuplug.o loadednormalizer2impl.o localebuilder.o
> localematcher.o localeprioritylist.o locavailable.o locbased.o
> locdispnames.o locdistance.o locdspnm.o locid.o loclikely.o
> loclikelysubtags.o locmap.o locresdata.o locutil.o lsr.o lstmbe.o
> messagepattern.o mlbe.o normalizer2.o normalizer2impl.o normlzr.o
> parsepos.o patternprops.o pluralmap.o propname.o propsvec.o punycode.o
> putil.o rbbi.o rbbi_cache.o rbbidata.o rbbinode.o rbbirb.o rbbiscan.o
> rbbisetb.o rbbistbl.o rbbitblb.o resbund.o resbund_cnv.o resource.o
> restrace.o ruleiter.o schriter.o serv.o servlk.o servlkf.o servls.o
> servnotf.o servrbf.o servslkf.o sharedobject.o simpleformatter.o
> static_unicode_sets.o stringpiece.o stringtriebuilder.o uarrsort.o
> ubidi.o ubidi_props.o ubidiln.o ubiditransform.o ubidiwrt.o ubrk.o
> ucase.o ucasemap.o ucasemap_titlecase_brkiter.o ucat.o uchar.o
> ucharstrie.o ucharstriebuilder.o ucharstrieiterator.o uchriter.o
> ucln_cmn.o ucmndata.o ucnv.o ucnv2022.o ucnv_bld.o ucnv_cb.o ucnv_cnv.o
> ucnv_ct.o ucnv_err.o ucnv_ext.o ucnv_io.o ucnv_lmb.o ucnv_set.o
> ucnv_u16.o ucnv_u32.o ucnv_u7.o ucnv_u8.o ucnvbocu.o ucnvdisp.o ucnvhz.o
> ucnvisci.o ucnvlat1.o ucnvmbcs.o ucnvscsu.o ucnvsel.o ucol_swp.o
> ucptrie.o ucurr.o udata.o udatamem.o udataswp.o uenum.o uhash.o
> uhash_us.o uidna.o uinit.o uinvchar.o uiter.o ulist.o uloc.o
> uloc_keytype.o uloc_tag.o ulocale.o ulocbuilder.o umapfile.o umath.o
> umutablecptrie.o umutex.o unames.o unifiedcache.o unifilt.o unifunct.o
> uniset.o uniset_closure.o uniset_props.o unisetspan.o unistr.o
> unistr_case.o unistr_case_locale.o unistr_cnv.o unistr_props.o
> unistr_titlecase_brkiter.o unorm.o unormcmp.o uobject.o uprops.o
> ures_cnv.o uresbund.o uresdata.o usc_impl.o uscript.o uscript_props.o
> uset.o uset_props.o usetiter.o ushape.o usprep.o ustack.o ustr_cnv.o
> ustr_titlecase_brkiter.o ustr_wcs.o ustrcase.o ustrcase_locale.o
> ustrenum.o ustrfmt.o ustring.o ustrtrns.o utext.o utf_impl.o util.o
> util_props.o utrace.o utrie.o utrie2.o utrie2_builder.o utrie_swap.o
> uts46.o utypes.o uvector.o uvectr32.o uvectr64.o wintz.o -L../lib
> -L../stubdata -licudata -lpthread -lm
> Undefined symbols:
> "__ZSt14__once_functor", referenced from:
> __ZSt14__once_functor$non_lazy_ptr in umutex.o
> (maybe you meant: __ZSt14__once_functor$non_lazy_ptr)
> "__ZSt20__throw_system_errori", referenced from:
> __ZNSt5mutex4lockEv in umutex.o
> __ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
> __ZNK6icu_7412UnifiedCache5_pollERKNS_12CacheKeyBaseERPKNS_12SharedObjectER10UErrorCode
> in unifiedcache.o
> __ZNSt5mutex4lockEv in unifiedcache.o
> "__ZNSt18condition_variable10notify_allEv", referenced from:
> __ZN6icu_7421umtx_initImplPostInitERNS_9UInitOnceE in umutex.o
> __ZNK6icu_7412UnifiedCache4_putEPK12UHashElementPKNS_12SharedObjectE10UErrorCode
> in unifiedcache.o
> "__ZSt16__get_once_mutexv", referenced from:
> __ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
> "___once_proxy", referenced from:
> ___once_proxy$non_lazy_ptr in umutex.o
> (maybe you meant: ___once_proxy$non_lazy_ptr)
> "__ZNSt18condition_variableC1Ev", referenced from:
> _umtx_init in umutex.o
> __ZN6icu_7412UnifiedCache11getInstanceER10UErrorCode in
> unifiedcache.o
> "__ZNSt18condition_variableD1Ev", referenced from:
> _umtx_cleanup in umutex.o
> _unifiedcache_cleanup in unifiedcache.o
> "__ZSt27__set_once_functor_lock_ptrPSt11unique_lockISt5mutexE",
> referenced from:
> __ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
> __ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
> __ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
> "__ZNSt18condition_variable4waitERSt11unique_lockISt5mutexE",
> referenced from:
> __ZN6icu_7420umtx_initImplPreInitERNS_9UInitOnceE in umutex.o
> __ZNK6icu_7412UnifiedCache5_pollERKNS_12CacheKeyBaseERPKNS_12SharedObjectER10UErrorCode
> in unifiedcache.o
> ld: symbol(s) not found
> }}}
>
> Apparently these symbols are provided by `libstdc++`: https://gcc.gnu.org
> /legacy-ml/gcc-help/2019-12/msg00090.html
>
> If I just add `-lstdc++` to the command above, it links successfully. But
> to ''all three libraries:''
>
> {{{
> 36-145% otool -L
> /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_devel_icu/icu/work/icu/source/lib/libicuuc.74.1.dylib
> /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_devel_icu/icu/work/icu/source/lib/libicuuc.74.1.dylib:
> /opt/local/lib/libicuuc.74.dylib (compatibility version 74.0.0,
> current version 74.1.0)
> /opt/local/libexec/llvm-7.1.1/lib/libc++.1.dylib (compatibility
> version 1.0.0, current version 1.0.0)
> /opt/local/lib/libicudata.74.dylib (compatibility version 74.0.0,
> current version 74.1.0)
> /opt/local/lib/libgcc/libstdc++.6.dylib (compatibility version
> 7.0.0, current version 7.32.0)
> /opt/local/libexec/llvm-7.1.1/lib/libc++abi.1.dylib
> (compatibility version 1.0.0, current version 1.0.0)
> /opt/local/lib/libgcc/libgcc_s.1.1.dylib (compatibility version
> 1.0.0, current version 1.1.0)
> /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current
> version 1.0.0)
> /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
> version 117.0.0)
> }}}
>
> This is likely wrong.
>
> P. S. The issue is perhaps nothing specific to PowerPC and should be
> reproducible on Intel without a native `libc++`.
New description:
So I tried to build `icu` against `libcxx` on PowerPC. Here linking
failed:
{{{
/opt/local/bin/g++-mp-12 -dynamiclib -dynamic -pipe -Os -arch ppc -W -Wall
-pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long -std=c++11
-fvisibility=hidden -Wl,-headerpad_max_install_names -stdlib=libc++
-L/opt/local/libexec/llvm-7.1.1/lib -lc++ -arch ppc
-Wl,-compatibility_version -Wl,74 -Wl,-current_version -Wl,74.1
-install_name /opt/local/lib/libicuuc.74.dylib -o
../lib/libicuuc.74.1.dylib appendable.o bmpset.o brkeng.o brkiter.o
bytesinkutil.o bytestream.o bytestrie.o bytestriebuilder.o
bytestrieiterator.o caniter.o characterproperties.o chariter.o charstr.o
cmemory.o cstr.o cstring.o cwchar.o dictbe.o dictionarydata.o dtintrv.o
edits.o emojiprops.o errorcode.o filteredbrk.o filterednormalizer2.o
icudataver.o icuplug.o loadednormalizer2impl.o localebuilder.o
localematcher.o localeprioritylist.o locavailable.o locbased.o
locdispnames.o locdistance.o locdspnm.o locid.o loclikely.o
loclikelysubtags.o locmap.o locresdata.o locutil.o lsr.o lstmbe.o
messagepattern.o mlbe.o normalizer2.o normalizer2impl.o normlzr.o
parsepos.o patternprops.o pluralmap.o propname.o propsvec.o punycode.o
putil.o rbbi.o rbbi_cache.o rbbidata.o rbbinode.o rbbirb.o rbbiscan.o
rbbisetb.o rbbistbl.o rbbitblb.o resbund.o resbund_cnv.o resource.o
restrace.o ruleiter.o schriter.o serv.o servlk.o servlkf.o servls.o
servnotf.o servrbf.o servslkf.o sharedobject.o simpleformatter.o
static_unicode_sets.o stringpiece.o stringtriebuilder.o uarrsort.o ubidi.o
ubidi_props.o ubidiln.o ubiditransform.o ubidiwrt.o ubrk.o ucase.o
ucasemap.o ucasemap_titlecase_brkiter.o ucat.o uchar.o ucharstrie.o
ucharstriebuilder.o ucharstrieiterator.o uchriter.o ucln_cmn.o ucmndata.o
ucnv.o ucnv2022.o ucnv_bld.o ucnv_cb.o ucnv_cnv.o ucnv_ct.o ucnv_err.o
ucnv_ext.o ucnv_io.o ucnv_lmb.o ucnv_set.o ucnv_u16.o ucnv_u32.o ucnv_u7.o
ucnv_u8.o ucnvbocu.o ucnvdisp.o ucnvhz.o ucnvisci.o ucnvlat1.o ucnvmbcs.o
ucnvscsu.o ucnvsel.o ucol_swp.o ucptrie.o ucurr.o udata.o udatamem.o
udataswp.o uenum.o uhash.o uhash_us.o uidna.o uinit.o uinvchar.o uiter.o
ulist.o uloc.o uloc_keytype.o uloc_tag.o ulocale.o ulocbuilder.o
umapfile.o umath.o umutablecptrie.o umutex.o unames.o unifiedcache.o
unifilt.o unifunct.o uniset.o uniset_closure.o uniset_props.o unisetspan.o
unistr.o unistr_case.o unistr_case_locale.o unistr_cnv.o unistr_props.o
unistr_titlecase_brkiter.o unorm.o unormcmp.o uobject.o uprops.o
ures_cnv.o uresbund.o uresdata.o usc_impl.o uscript.o uscript_props.o
uset.o uset_props.o usetiter.o ushape.o usprep.o ustack.o ustr_cnv.o
ustr_titlecase_brkiter.o ustr_wcs.o ustrcase.o ustrcase_locale.o
ustrenum.o ustrfmt.o ustring.o ustrtrns.o utext.o utf_impl.o util.o
util_props.o utrace.o utrie.o utrie2.o utrie2_builder.o utrie_swap.o
uts46.o utypes.o uvector.o uvectr32.o uvectr64.o wintz.o -L../lib
-L../stubdata -licudata -lpthread -lm
Undefined symbols:
"__ZSt14__once_functor", referenced from:
__ZSt14__once_functor$non_lazy_ptr in umutex.o
(maybe you meant: __ZSt14__once_functor$non_lazy_ptr)
"__ZSt20__throw_system_errori", referenced from:
__ZNSt5mutex4lockEv in umutex.o
__ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
__ZNK6icu_7412UnifiedCache5_pollERKNS_12CacheKeyBaseERPKNS_12SharedObjectER10UErrorCode
in unifiedcache.o
__ZNSt5mutex4lockEv in unifiedcache.o
"__ZNSt18condition_variable10notify_allEv", referenced from:
__ZN6icu_7421umtx_initImplPostInitERNS_9UInitOnceE in umutex.o
__ZNK6icu_7412UnifiedCache4_putEPK12UHashElementPKNS_12SharedObjectE10UErrorCode
in unifiedcache.o
"__ZSt16__get_once_mutexv", referenced from:
__ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
"___once_proxy", referenced from:
___once_proxy$non_lazy_ptr in umutex.o
(maybe you meant: ___once_proxy$non_lazy_ptr)
"__ZNSt18condition_variableC1Ev", referenced from:
_umtx_init in umutex.o
__ZN6icu_7412UnifiedCache11getInstanceER10UErrorCode in
unifiedcache.o
"__ZNSt18condition_variableD1Ev", referenced from:
_umtx_cleanup in umutex.o
_unifiedcache_cleanup in unifiedcache.o
"__ZSt27__set_once_functor_lock_ptrPSt11unique_lockISt5mutexE",
referenced from:
__ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
__ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
__ZSt9call_onceIRFvvEJEEvRSt9once_flagOT_DpOT0_ in umutex.o
"__ZNSt18condition_variable4waitERSt11unique_lockISt5mutexE", referenced
from:
__ZN6icu_7420umtx_initImplPreInitERNS_9UInitOnceE in umutex.o
__ZNK6icu_7412UnifiedCache5_pollERKNS_12CacheKeyBaseERPKNS_12SharedObjectER10UErrorCode
in unifiedcache.o
ld: symbol(s) not found
}}}
Apparently these symbols are provided by `libstdc++`: https://gcc.gnu.org
/legacy-ml/gcc-help/2019-12/msg00090.html
If I just add `-lstdc++` to the command above, it links successfully. But
to ''all four libraries:''
{{{
36-145% otool -L
/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_devel_icu/icu/work/icu/source/lib/libicuuc.74.1.dylib
/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_devel_icu/icu/work/icu/source/lib/libicuuc.74.1.dylib:
/opt/local/lib/libicuuc.74.dylib (compatibility version 74.0.0,
current version 74.1.0)
/opt/local/libexec/llvm-7.1.1/lib/libc++.1.dylib (compatibility
version 1.0.0, current version 1.0.0)
/opt/local/lib/libicudata.74.dylib (compatibility version 74.0.0,
current version 74.1.0)
/opt/local/lib/libgcc/libstdc++.6.dylib (compatibility version
7.0.0, current version 7.32.0)
/opt/local/libexec/llvm-7.1.1/lib/libc++abi.1.dylib (compatibility
version 1.0.0, current version 1.0.0)
/opt/local/lib/libgcc/libgcc_s.1.1.dylib (compatibility version
1.0.0, current version 1.1.0)
/usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current
version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 117.0.0)
}}}
This is wrong, but how do we get it to work without pulling in a zoo of
C++ runtime libs?
P. S. The issue is perhaps nothing specific to PowerPC and should be
reproducible on Intel without a native `libc++`.
--
--
Ticket URL: <https://trac.macports.org/ticket/69000#comment:1>
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