[LLVMdev] HELP! Recent failure on llvm buildbot

[Frédéric Riss]

> On 05 Sep 2014, at 10:20, Matthew Gardiner <mg11 at csr.com> wrote:
> 
> Hi Fred,
> 
> Thanks. How did you get to
> 
> "
> The build log show this error:
> 
> /Users/buildslave/as-bldslv9/lld-x86_64-darwin13/llvm.src/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp:92:11: error: enumeration values 'KalimbaSubArch_v3', 'KalimbaSubArch_v4', and 'KalimbaSubArch_v5' not handled in switch [-Werror,-Wswitch]
>  switch (triple.getSubArch()) {
> 
> "
> 
> from here
> http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/2571 <http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/2571>
> 
> Sorry to seem lame, but I could have fixed it myself if I'd known how to navigate to that line describing the failed invocation.

There are no dumb questions. My answer might seem a bit disappointing though :-) I just scrolled quickly though the log. The errors appear in red, they were easy to spot. Depending on the build system used, you can also search for specific patterns (like *** for make) in the log.

Fred

> thanks
> Matt
> 
> 
> Frédéric Riss wrote:
>> Hi,
>> 
>> The build log show this error:
>> /Users/buildslave/as-bldslv9/lld-x86_64-darwin13/llvm.src/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp:92:11: error: enumeration values 'KalimbaSubArch_v3', 'KalimbaSubArch_v4', and 'KalimbaSubArch_v5' not handled in switch [-Werror,-Wswitch]
>>   switch (triple.getSubArch()) {
>> This is a warning turned into an error by -Werror. LLVM’s code should be warning free.
>> You indeed added these entries to the enum and they seem not to be handled in ARMMCTargetDesc.cpp. If you don’t know how to add these to ParseARMTriple(), I’d suggest you revert your change until someone with ARM MC knowledge helps you out.
>> 
>> Fred
>> 
>>> On 05 Sep 2014, at 09:43, Matthew Gardiner <mg11 at csr.com <mailto:mg11 at csr.com> <mailto:mg11 at csr.com <mailto:mg11 at csr.com>>> wrote:
>>> 
>>> I'm working on lldb.
>>> 
>>> I've just submitted a very small change (r217229) to Triple.h/.cpp. Soon after I get a mail
>>> 
>>> subject: buildbot failure in LLVM on lld-x86_64-darwin13
>>> Details:
>>> http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/2571
>>> Blamelist: mg11
>>> 
>>> My small change certainly did not cause lldb's build to fail on my machine. I looked into the build-log:
>>> 
>>> http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/2571/steps/build_Lld/logs/stdio
>>> 
>>> It wasn't obvious how my change resulted in failure.
>>> 
>>> When I tried to replicate the build of the last 2 targets listed in the log, I did see this, on my machine:
>>> 
>>> $ ninja LLVMCodeGen
>>> [15/15] Linking CXX shared library lib/libLLVMCodeGen.so
>>> 
>>> $ ninja LLVMMipsCodeGen
>>> ninja: error: unknown target 'LLVMMipsCodeGen'
>>> 
>>> Can anyone help?
>>> 
>>> thanks
>>> Matt
>>> 
>>> 
>>> 
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>> 
>> 
>> 
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