Re: LLVM/JIT on MacOS X

[Ben Abbott]

On Jun 11, 2014, at 5:52 PM, Stefan Mahr <address@hidden> wrote:

>>>>>>> 
>>>>>>> Ben Abbott wrote: 
>>>>>>>> 
>>>>>>>> Carlo,
>>>>>>>> 
>>>>>>>> Have you been successful getting JIT to work on Mac OS X?  When I try, 
>>>>>>>> I encounter the error below.
>>>>>>>> 
>>>>>>>> Ben
>>>>>>>> 
>>>>>>>> [...]
>>>>>>>> 
>>>>>>>> Undefined symbols for architecture x86_64:
>>>>>>>> "llvm::verifyModule(llvm::Module const&, llvm::VerifierFailureAction, 
>>>>>>>> std::basic_string<char, std::char_traits<char>, std::allocator<char> 
>>>>>>>> >*)", referenced from:
>>>>>>>>   tree_jit::optimize(llvm::Function*)      in 
>>>>>>>> libcorefcn.a(corefcn_libcorefcn_la-pt-jit.o)
>>>>>>>> "llvm::raw_fd_ostream::raw_fd_ostream(char const*, 
>>>>>>>> std::basic_string<char, std::char_traits<char>, std::allocator<char> 
>>>>>>>> >&, unsigned int)", referenced from:
>>>>>>>>   tree_jit::optimize(llvm::Function*)      in 
>>>>>>>> libcorefcn.a(corefcn_libcorefcn_la-pt-jit.o)
>>>>>>>> "llvm::ExecutionEngine::createJIT(llvm::Module*, 
>>>>>>>> std::basic_string<char, std::char_traits<char>, std::allocator<char> 
>>>>>>>> >*, llvm::JITMemoryManager*, llvm::CodeGenOpt::Level, bool, 
>>>>>>>> llvm::Reloc::Model, llvm::CodeModel::Model)", referenced from:
>>>>>>>>   tree_jit::initialize()      in 
>>>>>>>> libcorefcn.a(corefcn_libcorefcn_la-pt-jit.o)
>>>>>>>> ld: symbol(s) not found for architecture x86_64
>>>>>>>> 
>>>>>>> 
>>>>>>> Hi Ben,
>>>>>>> 
>>>>>>> your error message sounds like a incompatibility with newer LLVM 
>>>>>>> versions and should be fixed with my attached patch in this bug report: 
>>>>>>> http://savannah.gnu.org/bugs/?41061
>>>>>>> 
>>>>>>> As always, a rebased changeset to a more recent repository state can be 
>>>>>>> found here: http://inversethought.com/hg/octave-nkf/nkf-ready
>>>>>>> 
>>>>>>> Could you try the patch?
>>>>>>> 
>>>>>>> Stefan
>>>>>> 
>>>>>> Patching my default branch with the changeset from bug 41061 ...
>>>>>> 
>>>>>> $ patch -p1 < ~/Downloads/llvm-3.4-3.5pre.patch 
>>>>>> patching file configure.ac
>>>>>> patching file libinterp/corefcn/jit-typeinfo.cc
>>>>>> patching file libinterp/corefcn/jit-util.h
>>>>>> patching file libinterp/corefcn/pt-jit.cc
>>>>>> Hunk #2 succeeded at 2064 (offset -8 lines).
>>>>>> Hunk #3 succeeded at 2187 (offset -8 lines).
>>>>>> patching file libinterp/corefcn/pt-jit.h
>>>>>> patching file m4/acinclude.m4
>>>>>> $ make -j4
>>>>>> <snip>
>>>>>> </snip>
>>>>>> Undefined symbols for architecture x86_64:
>>>>>> "llvm::verifyModule(llvm::Module const&, llvm::VerifierFailureAction, 
>>>>>> std::basic_string<char, std::char_traits<char>, std::allocator<char> 
>>>>>> >*)", referenced from:
>>>>>>    tree_jit::optimize(llvm::Function*)      in 
>>>>>> libcorefcn.a(corefcn_libcorefcn_la-pt-jit.o)
>>>>>> "llvm::raw_fd_ostream::raw_fd_ostream(char const*, 
>>>>>> std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, 
>>>>>> unsigned int)", referenced from:
>>>>>>    tree_jit::optimize(llvm::Function*)      in 
>>>>>> libcorefcn.a(corefcn_libcorefcn_la-pt-jit.o)
>>>>>> "llvm::ExecutionEngine::createJIT(llvm::Module*, std::basic_string<char, 
>>>>>> std::char_traits<char>, std::allocator<char> >*, 
>>>>>> llvm::JITMemoryManager*, llvm::CodeGenOpt::Level, bool, 
>>>>>> llvm::Reloc::Model, llvm::CodeModel::Model)", referenced from:
>>>>>>    tree_jit::initialize()      in 
>>>>>> libcorefcn.a(corefcn_libcorefcn_la-pt-jit.o)
>>>>>> ld: symbol(s) not found for architecture x86_64
>>>>>> 
>>>>>> Ben
>>>>> 
>>>>> bootstrap and configure is needed before starting make.
>>>> 
>>>> Configure ran (automatically) after the patch was applied.  Just to be 
>>>> sure, I ran bootstrap & configure manually, and still obtained the same 
>>>> result.
>>>> 
>>>> Ben
>>>> 
>>> 
>>> I'm really confused that compiling works, but linking fails. This usually 
>>> happens in the past (for me) if there are multiple versions of LLVM 
>>> installed (Debian/Ubuntu) or some older headerfiles were not deleted during 
>>> update (seen with MXE).
>>> 
>>> E.g. for linking error with llvm::verifyModule. The header file for my 
>>> LLVM-3.3 installation is in <llvm/Analysis/Verifier.h>. For llvm 3.5 it's 
>>> in <llvm/IR/Verifier.h> with different declaration. If compiling with 3.3 
>>> headers and linking to 3.5 lib I would expect the same error as you get. 
>>> Same for llvm::raw_fd_ostream::raw_fd_ostream, since the last argument is 
>>> not an integer type anymore in newer LLVM versions. However, this doesn't 
>>> explain a link error for llvm::ExecutionEngine::createJIT. I see no 
>>> difference in declarions between LLVM versions 3.3 to 3.5.
>>> 
>>> To summarise: If you only have LLVM 3.3 installed, I have no idea. Sorry.
>>> 
>>> Stefan
>> 
>> hmmm, it does appear there is more than one llvm present.
>> 
>> $ port installed *llvm*
>> The following ports are currently installed:
>>  llvm-3.3 @3.3_1
>>  llvm-3.3 @3.3_4 (active)
>>  llvm-gcc42 @2336.11_1 (active)
>>  llvm_select @0.2_0
>>  llvm_select @1.0_0 (active)
>> 
>> I've deactivate llvm-gcc42
>> 
>> $ sudo port deactivate llvm-gcc42
>> Password:
>> --->  Deactivating llvm-gcc42 @2336.11_1
>> --->  Cleaning llvm-gcc42
>> 
>> And ran configure/make again. Unfortunately, I'm still seeing the same error.
>> 
>> Looking at "config.log", there is one problem with llvm ....
>> 
>> configure:15039: checking llvm/IR/Function.h presence
>> configure:15039: /opt/local/bin/g++-mp-4.7 -E -D__STDC_CONSTANT_MACROS 
>> -D__STDC_LIMIT_MACROS -isystem /opt/local/libexec/llvm-3.3/include 
>> -D_THREAD_SAFE -I/opt/local/include conftest.cpp
>> configure:15039: $? = 0
>> configure:15039: result: yes
>> configure:15039: checking for llvm/IR/Function.h
>> configure:15039: result: yes
>> configure:15057: checking llvm/Support/IRBuilder.h usability
>> configure:15057: /opt/local/bin/g++-mp-4.7 -c  -pipe -O2 -m64 -D_THREAD_SAFE 
>> -pthread -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -isystem 
>> /opt/local/libexec/llvm-3.3/include -D_THREAD_SAFE -I/opt/local/include 
>> conftest.cpp >&5
>> conftest.cpp:84:36: fatal error: llvm/Support/IRBuilder.h: No such file or 
>> directory
>> 
>> Ben
> 
> The output of config.log looks OK. configure checks for presence of
> llvm/Support/IRBuilder.h, but with LLVM 3.3 the header file is located
> in llvm/IR/IRBuilder.h.

hmmm ... I checked config.log a second time ... looks like I examined the wrong 
file previously. 

configure:15075: checking llvm/Target/TargetData.h usability
configure:15075: /opt/local/bin/g++-mp-4.7 -c  -pipe -O2 -m64 -D_THREAD_SAFE 
-pthread -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -isystem 
/opt/local/libexec/llvm-3.3/include -D_THREAD_SAFE -I/opt/local/include 
conftest.cpp >&5
conftest.cpp:85:36: fatal error: llvm/Target/TargetData.h: No such file or 
directory

 I checked my install and have confirmed that TargetData.h does not exist.

Ben