https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70560
James Hilliard <james.hilliard1 at gmail dot com> changed:
What |Removed |Added
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CC| |james.hilliard1 at gmail dot
com
--- Comment #2 from James Hilliard <james.hilliard1 at gmail dot com> ---
We've been hitting a bug in buildroot with an application(apcupsd) that links
against libsupc++.a directly.
This issue appears to be due to a sparc/arc specific missing symbols bug in
libsupc++, we aren't seeing this build error for any other architectures at the
moment.
See discussions:
http://lists.busybox.net/pipermail/buildroot/2020-May/282779.html
http://lists.busybox.net/pipermail/buildroot/2020-August/289413.html
Build error
http://autobuild.buildroot.org/results/3be/3bedf404de0ea42ee3ba624cded65d310a847af9//build-end.log:
/tmp/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/sparc-buildroot-linux-uclibc/8.3.0/../../../../sparc-buildroot-linux-uclibc/bin/ld:
/tmp/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/sparc-buildroot-linux-uclibc/8.3.0/../../../../sparc-buildroot-linux-uclibc/lib/libsupc++.a(eh_throw.o):
in function `__gxx_exception_cleanup(_Unwind_Reason_Code, _Unwind_Exception*)':
eh_throw.cc:(.text._ZL23__gxx_exception_cleanup19_Unwind_Reason_CodeP17_Unwind_Exception+0x38):
undefined reference to `__gnu_cxx::__exchange_and_add(int volatile*, int)'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:33: apcupsd] Error 1
