[LLVMdev] X86TargetMachineModule not helping

Nicolas Capens nicolas at capens.net
Wed May 28 14:53:36 PDT 2008


Very interesting trick, thanks Stein!

 

From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Stein Pedersen
Sent: Wednesday, 28 May, 2008 12:28
To: 'LLVM Developers Mailing List'
Subject: Re: [LLVMdev] X86TargetMachineModule not helping

 

Nicolas,

 

In Visual Studio 2005, you can force the linker to include specific symbols.
In your project, under "Configuration Properties/Linker/Input/Force Symbol
References", try adding _X86TargetMachineModule.

 

Hope that helps!

 

Stein Pedersen


  _____  


From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Nicolas Capens
Sent: 27. mai 2008 00:11
To: 'LLVM Developers Mailing List'
Subject: [LLVMdev] X86TargetMachineModule not helping

Hi all,

 

After creating a new LLVM-based project, I faced an odd problem.
ExecutionEngine::create always retuned null. After some investigation I
found out that it was due to the target architecture not getting registered.
I'm using Visual C++ 2005 and in the X86TargetMachine.cpp file an extern
variable X86TargetMachineModule is created to 'ensure' that the module is
linked in. It works for the example projects, but not for the one I created.
When I write a value to X86TargetMachineModule in another module, all is
fine and dandy.

 

Although it's a viable workaround for now I was wondering if anyone knew a
more elegant solution, or has an explanation why X86TargetMachineModule
works for the example projects but not for mine.

 

Thanks,

 

Nicolas Capens

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