[LLVMdev] llc undefined symbol

[Michael Graumann]

Hi all

 

I'm writing a pass for the llc tool. If I try to load my pass(llc -load
../mypass.so), this error message appears  :

 

Error opening '/nfs/wsi/ti/graumann/llvm-2.5/Release/lib/LLVMMicha.so':
/nfs/wsi/ti/graumann/llvm-2.5/Release/lib/LLVMMicha.so: undefined symbol:
_ZTVN12_GLOBAL__N_119MyRegisterAllocatorE

  -load request ignored.

 

Is this code wrong for the pass registration, or the makefile?

 

Thank you for help

                Michael

 

 

Code of my pass:

 

using namespace llvm;

 

 namespace {

                struct MyRegisterAllocator : public MachineFunctionPass {

                                

static char ID; // Pass identification, replacement for typeid

                MyRegisterAllocator() : MachineFunctionPass(&ID) {}

virtual bool runOnMachineFunction(MachineFunction &MF);

   

                };

char MyRegisterAllocator::ID = 0;

}

static  RegisterPass<MyRegisterAllocator>X("myregalloc",

   "  my register allocator help string");

 

FunctionPass* createMyRegisterAllocator() {

    return new MyRegisterAllocator();

  }

 

static RegisterRegAlloc MyRegAlloc("myregalloc",

    "  my register allocator help string",

    createMyRegisterAllocator);

 

the makefile:

 

LEVEL = ../../..

LIBRARYNAME = LLVMMicha

LOADABLE_MODULE = 1

USEDLIBS =

#LLVMLIBS = LLVMCore.a LLVMSupport.a LLVMSystem.a

LINK_COMPONENTS = support system

 

include $(LEVEL)/Makefile.common

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