On Tue, Jul 01, 2014 at 10:40:06AM +0200, Matthias Klose wrote: > on some linux architectures there are some symbols missing in libstdc++.so.6 > built from the 4.9 branch. I didn't notice before due to a packaging bug. > affected are ARM32, HPPA, SPARC. > > - ARM32 (build log [1], both soft and hard float) are missing > __aeabi_atexit@CXXABI_ARM_1.3.3 > __aeabi_vec_* > > Can these be ignored? > > - HPPA (build log [2]), is missing all the future_base symbols and > exception_ptr13exception symbols, current_exception and > rethrow_exception. > > - SPARC (build log [3]) configured for sparc64-linux-gnu is missing > symbols in the 32bit multilib build, although these are present > in a sparc-linux-gnu build. Missing are same ones as in the HPPA > build, long double 128 related symbols, numeric_limits, and some > math symbols. > > Looks like more than one issue is involved, I remember that the > math symbols were already dropped in earlier versions for other > architectures. The build is configured -with-long-double-128. >
I think that for sparc long double issue, the problem is that -with-long-double-128 doesn't work as -mlong-double-64 is forced when -m32 is used. I sent a patch a few months ago [1], but it has some side effect and I never came to a better version. Any help on how to do that properly is welcome, and I can build test some patches if needed. [1] https://gcc.gnu.org/ml/gcc-patches/2013-12/msg00318.html -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurel...@aurel32.net http://www.aurel32.net
