[lldb-dev] Build break caused by "

[Greg Clayton]

The clang fix has been reverted for now, so the buildbots should all be happy again. Let me know if they aren't.

> On Nov 7, 2014, at 9:32 AM, Greg Clayton <gclayton at apple.com> wrote:
> 
> The clang commit r221404 broke this. We are working on a fix with the author. 
> 
>> On Nov 6, 2014, at 3:25 PM, Zachary Turner <zturner at google.com> wrote:
>> 
>> I have no idea if this is related, but I made r221378 in LLDB yesterday to fix a build breakage as a result of an upstream LLVM change.  I'm not sure what LLVM change introduced the break.  At first your r221471 sounded like it might be relevant, but that comes after my change, so it couldn't have been that.
>> 
>> Either way, maybe a red herring, just rang a bell when you mentioned dynamic type of metadata.
>> 
>> On Thu Nov 06 2014 at 3:05:23 PM Sean Callanan <scallanan at apple.com> wrote:
>> After some local reverting, it turns out that no, it didn’t.  Curses!
>> 
>> Sean
>> 
>>> On Nov 6, 2014, at 2:37 PM, Sean Callanan <scallanan at apple.com> wrote:
>>> 
>>> Greg,
>>> 
>>> LLVM r221471 broke this.  Somebody made bad assumptions about what the dynamic type of a piece of metadata might be.
>>> 
>>> Sean
>>> 
>>>> On Nov 6, 2014, at 1:09 PM, Greg Clayton <gclayton at apple.com> wrote:
>>>> 
>>>> We think this is due to a clang change. We will be tracking this down shortly.
>>>> 
>>>>> On Nov 6, 2014, at 1:01 PM, Greg Clayton <gclayton at apple.com> wrote:
>>>>> 
>>>>> The expression parser is failing for printf:
>>>>> 
>>>>> (lldb) expr (int)printf("hello\n")
>>>>> error: call to a function 'printf(char const*, ...)' ('_Z6printfPKcz') that is not present in the target
>>>>> error: warning: function 'printf' has internal linkage but is not defined
>>>>> note: used here
>>>>> error: The expression could not be prepared to run in the target
>>>>> 
>>>>> This seems to be the bug we need to track down. We will take care of that here at Apple.
>>>>> 
>>>>>> On Nov 6, 2014, at 11:54 AM, Vince Harron <vharron at google.com> wrote:
>>>>>> 
>>>>>> Hi all,
>>>>>> 
>>>>>> If I'm reading this correctly, it looks like Change #69502 caused some unit test failures in Linux.
>>>>>> 
>>>>>> http://lab.llvm.org:8011/builders/lldb-x86_64-freebsd/builds/2513
>>>>>> http://lab.llvm.org:8011/builders/lldb-x86_64-freebsd/builds/2512
>>>>>> 
>>>>>> Thanks,
>>>>>> 
>>>>>> Vince
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> -- 
>>>>>> 
>>>>>> Vince Harron |	 Technical Lead Manager |	 vharron at google.com |	 858-442-0868
>>>>>> 
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>>>>> 
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