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From: "cestrauss at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/51140] New: libstdc++-v3/libsupc++/eh_tm.cc:48: undefined reference to `___sync_sub_and_fetch_4'
Date: Tue, 15 Nov 2011 12:40:00 -0000 [thread overview]
Message-ID: <bug-51140-4@http.gcc.gnu.org/bugzilla/> (raw)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51140
Bug #: 51140
Summary: libstdc++-v3/libsupc++/eh_tm.cc:48: undefined
reference to `___sync_sub_and_fetch_4'
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: cestrauss@gmail.com
Host: i386-pc-mingw32
Target: i386-pc-mingw32
Build: i386-pc-mingw32
Building 4.7.0 (trunk) on i368-pc-mingw32 fails with:
Creating library file:
.libs/libstdc++.dll.a../libsupc++/.libs/libsupc++convenience.a(eh_tm.o): In
function `free_any_cxa_exception':
c:\projetos\gcc\bld\svn\bld\mingw32\libstdc++-v3\libsupc++/../../../../../../gcc-svn/libstdc++-v3/libsupc++/eh_tm.cc:48:
undefined reference to `___sync_sub_and_fetch_4'
collect2.exe: error: ld returned 1 exit status
make[5]: *** [libstdc++.la] Error 1
make[5]: Leaving directory `/projetos/gcc/bld/svn/bld/mingw32/libstdc++-v3/src'
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory `/projetos/gcc/bld/svn/bld/mingw32/libstdc++-v3'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/projetos/gcc/bld/svn/bld/mingw32/libstdc++-v3'
make[2]: *** [all-stage1-target-libstdc++-v3] Error 2
make[2]: Leaving directory `/projetos/gcc/bld/svn/bld'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/projetos/gcc/bld/svn/bld'
make: *** [all] Error 2
The line in question is:
if (__sync_sub_and_fetch (&h->referenceCount, 1) == 0)
There is another use of __sync_sub_and_fetch in
libstdc++-v3/libsupc++/eh_tm.cc, and there it is guarded by a #ifdef
_GLIBCXX_ATOMIC_BUILTINS_4, which is undefined in my case. I guess this guard
is missing from eh_tm.cc.
$ gcc -v
Using built-in specs.
COLLECT_GCC=\mingw\bin\gcc.exe
COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.5.2/lto-wrapper.exe
Target: mingw32
Configured with: ../gcc-4.5.2/configure
--enable-languages=c,c++,ada,fortran,obj
c,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared
--enable-libgo
mp --disable-win32-registry --enable-libstdcxx-debug
--enable-version-specific-r
untime-libs --disable-werror --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.5.2 (GCC)
next reply other threads:[~2011-11-15 12:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-15 12:40 cestrauss at gmail dot com [this message]
2011-11-15 12:45 ` [Bug libstdc++/51140] " cestrauss at gmail dot com
2011-11-15 13:53 ` redi at gcc dot gnu.org
2011-11-18 0:24 ` paolo.carlini at oracle dot com
2011-11-22 21:50 ` cestrauss at gmail dot com
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