llvm dev - Sep 2013 - [LLVMdev] range-analysis in Function Pass on Eclipse with CMake

Hello,

I currently write my own LLVM (function) pass and intend to use the
following project to enable the use of range analysis information in my
code: https://code.google.com/p/range-analysis/.

Since I use Eclipse (with CMake) to build LLVM I did the following:

1. Provide each subfolder with a CMakeLists.txt 	(add_llvm_loadable_module).
2. Re-create the CMake config (cmake ../llvm -G "Eclipse CDT4 - Unix
Makefiles"), re-open it in Eclipse.
4. Fix some minor issues with range-analysis (some symbols were renamed
in newer LLVM releases).
5. Add the necessary code to my own pass, almost verbatim from
https://code.google.com/p/range-analysis/wiki/HowToUseRangeAnalysisInAnotherPass.

Everything compiles fine, but loading the pass in LLVM gives me the
following error:
> /opt/llvm/bin/opt: symbol lookup error: ./build/lib/RangeAnalysis.so:
undefined symbol: _ZN4llvm13ConstantRangeC1ENS_5APIntES1_
> error: unable to interface with target machine
I use LLVM 3.4svn on Ubuntu x64.

Do I miss a specific library?


Regards

dw <dw.dev.mailing at gmail.com> writes:

[snip]
> Everything compiles fine, but loading the pass in LLVM gives me the
> following error:
>
>> /opt/llvm/bin/opt: symbol lookup error: ./build/lib/RangeAnalysis.so:
undefined symbol: _ZN4llvm13ConstantRangeC1ENS_5APIntES1_
>> error: unable to interface with target machine
>
> I use LLVM 3.4svn on Ubuntu x64.
>
> Do I miss a specific library?
$ c++filt _ZN4llvm13ConstantRangeC1ENS_5APIntES1_
llvm::ConstantRange::ConstantRange(llvm::APInt, llvm::APInt)

IIRC ConstantRange is defined in libLLVMSupport. That library is at the
core of the dependency graph. Do you provide a list of LLVM libraries at
all for your RangeAnalysis library?

24.09.2013 12:43, Óscar Fuentes writes:
> [snip]
> 
> IIRC ConstantRange is defined in libLLVMSupport. That library is at the
> core of the dependency graph. Do you provide a list of LLVM libraries at
> all for your RangeAnalysis library?
Thanks. Adding "target_link_libraries(RangeAnalysis LLVMSupport)" to
the
corresponding CMakeLists.txt solves the issue.