[LLVMdev] Regarding a pass in LLVM

[ambika]

I have done that. I have defined createMyAnaPass() in Passes.h and it is 
defined in MyAna.cpp and used in LinkAllPasses.h

But still the error :

/home/ambika/llvm/llvm-obj/tools/opt/Release/opt.o: In function `global 
constructors keyed to opt.cpp':
opt.cpp:(.text+0x1e89): undefined reference to `llvm::createMyAnaPass()'


I dont understand whats the problem.


Jianzhou Zhao wrote:
> On Tue, Feb 23, 2010 at 7:17 AM, ambika <ambika at cse.iitb.ac.in> wrote:
>   
>> Thanks that helped me out.
>> But now I am facing one more problem. It says :
>>
>> ‘llvm::ModulePass* llvm::createMyAnaPass()’ should have been declared
>> inside ‘llvm’
>>
>> but I can find no place to declare it.
>> Where should I do it.
>>     
>
> We can do what scalar optimizations do.
>
> All scalar passes are declared in include/llvm/Transforms/Scalar.h and
> include/llvm-c/Transforms/Scalar.h,
> defined in lib/Transforms/Scalar.cpp, and used in include/llvm/LinkAllPasses.h.
>
> Jianzhou
>
>   
>> John Criswell wrote:
>>     
>>> ambika at cse.iitb.ac.in wrote:
>>>       
>>>> Hi,
>>>>
>>>> I am trying to add a pass inn LLVM, and I actually want to add it in
>>>> source code, not just directly into object code.
>>>>
>>>> For that I included the lines in my file MyAna.cpp
>>>> (llvm-2.6/lib/ana/MyAna.cpp)
>>>>
>>>>
>>>> char MyAna::ID = 0;
>>>> static RegisterPass<MyAna> X("my-aa","My Analysis");
>>>> static RegisterAnalysisGroup<AliasAnalysis> Y(X);
>>>>
>>>> ModulePass *llvm::createMyAnaPass() { return new MyAna(); }
>>>>
>>>>
>>>> I also included createMyAnaPass() in Passes.h and LinkAllPasses.h
>>>> But when I do make I get the following error :
>>>>
>>>> /home/ambika/llvm/llvm-obj/tools/opt/Release/opt.o: In function `global
>>>> constructors keyed to opt.cpp':
>>>> opt.cpp:(.text+0x1e89): undefined reference to `llvm::createMyAnaPass()'
>>>>
>>>>
>>>> Am I missing out something.
>>>>         
>>> Have you modified the Makefile in tools/opt to link in the library
>>> containing your pass? Your pass doesn't appear to be placed in
>>> libAnalysis or libTransform, so you'll need to modify the opt Makefile
>>> to link in whatever your library's name is.
>>>
>>> -- John T.
>>>
>>>       
>>>> Please help me.
>>>>
>>>> thanks and regards,
>>>> Ambika
>>>>
>>>> _______________________________________________
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>>>>         
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