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.
Matthias
[1]
https://buildd.debian.org/status/fetch.php?pkg=gcc-4.9&arch=armhf&ver=4.9.0-8&stamp=1403809654
[2]
http://buildd.debian-ports.org/status/fetch.php?pkg=gcc-4.9&arch=hppa&ver=4.9.0-9&stamp=1404018503
[3]
http://buildd.debian-ports.org/status/fetch.php?pkg=gcc-4.9&arch=sparc64&ver=4.9.0-9&stamp=1404033854
