[llvm-dev] [RFC] better link error messages

[Rui Ueyama via llvm-dev]

The first patch is sent out: https://reviews.llvm.org/D31481

On Wed, Mar 29, 2017 at 1:47 PM, Rafael Espíndola <
rafael.espindola at gmail.com> wrote:

> I am late on the thread, but I just want to say that the new format
> looks awesome!
>
> Thanks,
> Rafael
>
>
> On 29 March 2017 at 15:18, Rui Ueyama via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> > My bad. I intended this.
> >
> > Undefined symbol error:
> >
> > bin/ld.lld: error: undefined symbol:
> > lld::elf::EhFrameSection<llvm::object::ELFType<(llvm::
> support::endianness)0,
> > true>
> >>>> Referenced by Writer.cpp:207 (/ssd/llvm-project/lld/ELF/
> Writer.cpp:207)
> >>>>               Writer.cpp.o in archive lib/liblldELF.a
> >
> >
> > Duplicate symbol error:
> >
> > bin/ld.lld: error: duplicate symbol:
> > lld::elf::MipsGotSection::addEntry(lld::elf::SymbolBody&, long,
> > lld::elf::RelExpr)
> >>>> defined at Writer.cpp:38
> >>>> (/home/buildslave/buildslave/clang-cmake-aarch64-39vma/
> llvm/tools/lld/ELF/Writer.cpp:38)
> >>>>            Writer.cpp.o in archive lib/liblldELF.a
> >>>> defined at SyntheticSections.cpp:673
> >>>> (/home/buildslave/buildslave/clang-cmake-aarch64-39vma/
> llvm/tools/lld/ELF/SyntheticSections.cpp:673)
> >>>>            SyntheticSections.cpp.o in archive lib/liblldELF.a
> >
> >
> > On Wed, Mar 29, 2017 at 12:12 PM, Jonathan Roelofs
> > <jonathan at codesourcery.com> wrote:
> >>
> >>
> >>
> >> On 3/29/17 12:53 PM, Rui Ueyama via llvm-dev wrote:
> >>>
> >>> Put it all together, the following error messages should work for
> >>> everybody. I'll create a patch to make this change and send it for
> >>> review. Thank you guys for the inputs!
> >>>
> >>>
> >>> Undefined symbol error:
> >>>
> >>> bin/ld.lld: error: undefined symbol:
> >>>
> >>> lld::elf::EhFrameSection<llvm::object::ELFType<(llvm::
> support::endianness)0,
> >>> true>
> >>> *>>> defined at* Writer.cpp:207
> >>> (/ssd/llvm-project/lld/ELF/Writer.cpp:207)
> >>> *>>>*            Writer.cpp.o in archive lib/liblldELF.a
> >>
> >>
> >> The wording of this one is mildly self contradictory. Undefined symbols
> >> aren't defined, they're... used? referenced?
> >>
> >>
> >> Jon
> >>
> >>>
> >>>
> >>> Duplicate symbol error:
> >>>
> >>> bin/ld.lld: error: duplicate symbol:
> >>> lld::elf::MipsGotSection::addEntry(lld::elf::SymbolBody&, long,
> >>> lld::elf::RelExpr)
> >>> *>>> defined at* Writer.cpp:38
> >>>
> >>> (/home/buildslave/buildslave/clang-cmake-aarch64-39vma/
> llvm/tools/lld/ELF/Writer.cpp:38)
> >>> *>>>*            Writer.cpp.o in archive lib/liblldELF.a
> >>> *>>> defined at* SyntheticSections.cpp:673
> >>>
> >>> (/home/buildslave/buildslave/clang-cmake-aarch64-39vma/
> llvm/tools/lld/ELF/SyntheticSections.cpp:673)
> >>> *>>>*            SyntheticSections.cpp.o in archive lib/liblldELF.a
> >>>
> >>>
> >>
> >>
> >> --
> >> Jon Roelofs
> >> jonathan at codesourcery.com
> >> CodeSourcery / Mentor Embedded
> >
> >
> >
> > _______________________________________________
> > LLVM Developers mailing list
> > llvm-dev at lists.llvm.org
> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
> >
>
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