[LLVMdev] buildbot failure

[Daniel Dunbar]

On Dec 12, 2011, at 2:51 PM, Tony Linthicum wrote:

> On 12/12/2011 4:49 PM, Eric Christopher wrote:
>> 
>> 
>> On Dec 12, 2011, at 2:41 PM, Eric Christopher wrote:
>> 
>>> 
>>> On Dec 12, 2011, at 2:36 PM, Tony Linthicum wrote:
>>> 
>>>> On 12/12/2011 4:28 PM, Jakob Stoklund Olesen wrote:
>>>>> 
>>>>> 
>>>>> On Dec 12, 2011, at 2:12 PM, Tony Linthicum wrote:
>>>>> 
>>>>>> Hi folks,
>>>>>> 
>>>>>> I just committed a new backend for the Hexagon processor.  After committing, I was able to successfully check out, build and test with the new changes.  The x86_64 build on the buildbot is failing, however.  Here's the build error:
>>>>>> 
>>>>>> llvm[2]: Linking Debug+Asserts executable llvm-mc
>>>>>> /home/baldrick/osuosl/slave/llvm-x86_64/llvm/tools/llvm-mc/Debug+Asserts/llvm-mc.o: In function `llvm::InitializeAllTargetInfos()':
>>>>>> llvm-mc.cpp:(.text._ZN4llvm24InitializeAllTargetInfosEv[llvm::InitializeAllTargetInfos()]+0x5): undefined reference to `LLVMInitializeHexagonTargetInfo'
>>>>>> /home/baldrick/osuosl/slave/llvm-x86_64/llvm/tools/llvm-mc/Debug+Asserts/llvm-mc.o: In function `llvm::InitializeAllTargetMCs()':
>>>>>> llvm-mc.cpp:(.text._ZN4llvm22InitializeAllTargetMCsEv[llvm::InitializeAllTargetMCs()]+0x5): undefined reference to `LLVMInitializeHexagonTargetMC'
>>>>>> 
>>>>>> It certainly looks like something wasn't checked in, but I don't find anything and
>>>>>> my fresh checkout should have failed as well.  Any suggestions as to what I could 
>>>>>> have done wrong?
>>>>> FWIW, I am getting the same linker errors on OS X:
>>>>> 
>>>>> Undefined symbols for architecture x86_64:
>>>>>   "_LLVMInitializeHexagonAsmPrinter", referenced from:
>>>>>       LTOCodeGenerator::LTOCodeGenerator() in LTOCodeGenerator.o
>>>>>   "_LLVMInitializeHexagonTargetMC", referenced from:
>>>>>       LTOCodeGenerator::LTOCodeGenerator() in LTOCodeGenerator.o
>>>>>       LTOModule::makeLTOModule(llvm::MemoryBuffer*, std::string&) in LTOModule.o
>>>>>   "_LLVMInitializeHexagonTarget", referenced from:
>>>>>       llvm::InitializeAllTargets() in LTOCodeGenerator.o
>>>>>   "_LLVMInitializeHexagonTargetInfo", referenced from:
>>>>>       llvm::InitializeAllTargets() in LTOCodeGenerator.o
>>>>> ld: symbol(s) not found for architecture x86_64
>>>>> 
>>>>> Are you building with CMake or configure?
>>>>> 
>>>>> /jakob
>>>>> 
>>>> 
>>>> I should have asked, but is the buildbot using CMake? 
>>> 
>>> No, most of us internally can't build it either using autoconf at the moment.
>>> 
>>>> Assuming that's the issue, I need to get CMake installed on my build machine to find and fix the problem.  Is there anything I can do in the interim to keep others from being blocked by this?
>>> 
>>> Revert unfortunately, but I'm looking at it.
>> 
>> Daniel is fixing it :)
>> 
>> -eric
>> 
> 
> Excellent!  Daniel, I owe you a beer ... or three. :)

Well, not really, it was just an llvm-build bug that I was already in the process of fixing. So it was my fault all along -- shame I didn't comment a tad faster and then maybe no one would have known! :)

 - Daniel

> 
> Tony
> 

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