thr3ads.net - llvm dev - [llvm-dev] [RFC] better link error messages [Mar 2017]

If this information is useful, please help other people find it:
Share via:

Jonathan Roelofs via llvm-dev

2017-Mar-29 19:12 UTC

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

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

Rui Ueyama via llvm-dev

2017-Mar-29 19:18 UTC

head link

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

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::suppor
>> t::endianness)0,
>> true>
>> *>>> defined at* Writer.cpp:207 (/ssd/llvm-project/lld/ELF/Wri
>> ter.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
>-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20170329/8b4d5e6c/attachment.html>

Rafael Espíndola via llvm-dev

2017-Mar-29 20:47 UTC

head link

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

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
>

Apparently Analagous Threads

Search for more apparently analagous threads

llvm dev - Mar 2017 - [RFC] better link error messages

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

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

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

Apparently Analagous Threads