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RE: [PATCH,testsuite] Add check_effective_target_rdynamic and use it in g++.dg/lto/pr69589_0.C.
- From: Matthew Fortune <Matthew dot Fortune at imgtec dot com>
- To: Rainer Orth <ro at CeBiTec dot Uni-Bielefeld dot DE>, Toma Tabacu <Toma dot Tabacu at imgtec dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, "catherine_moore at mentor dot com" <catherine_moore at mentor dot com>
- Date: Thu, 9 Mar 2017 09:39:00 +0000
- Subject: RE: [PATCH,testsuite] Add check_effective_target_rdynamic and use it in g++.dg/lto/pr69589_0.C.
- Authentication-results: sourceware.org; auth=none
- References: <A614194ED15B4844BC4C9FB7F21FCD9270456A99@hhmail02.hh.imgtec.org> <yddo9xbzu5y.fsf@CeBiTec.Uni-Bielefeld.DE>
Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> writes:
> > g++.dg/lto/pr69589_0.C is currently failing for mips-mti-elf with the
> following error:
> >
> > xg++: error: unrecognized command line option '-rdynamic'
> >
> > However, it passes just fine for mips-mti-linux-gnu.
> > I think that we should skip this test for mips-mti-elf.
>
> could it be that mips/sde.h is just missing -rdynamic handling in
> LINK_SPEC? At least some bare-metal targets using gld *do* support -
> rdynamic (cf. xtensa/elf.h and aarch64/aarch64-elf-raw.h)...
There's probably no harm in adding it in to mips/sde.h it just doesn't
really add much value either. We have some (very subtle) ABI differences
between ELF and Linux targets so I'm not sure it is worth trying to
make sure all options exist/behave the same given such differences.
Matthew