Andreas Eriksson
2006-Sep-16 16:39 UTC
[LLVMdev] failed assertion in PPCJITInfo.cpp when calling native function
Hi, I am trying to generate LLVM code that calls a "native" function in the parent program (the program hosting the JIT). I think that I have figured out how to do this, but I get the following assertion failure when the LLVM code is executed: ../llvm/lib/Target/PowerPC/PPCJITInfo.cpp:206: failed assertion `ResultPtr >= -(1 << 23) && ResultPtr < (1 << 23) && "Relocation out of range!"' I am running LLVM 1.8 and MacOSX Tiger on a PowerPC G4. I have attached a complete, minimal program that reproduces the error and the call-stack. However, the relevant part of the program looks as follows. Am I doing something wrong, or is this a bug in the JIT? Regards, Andreas // the "native" function that the llvm code should call extern "C" { void nativeFunction() {} } int main() { Module* module = new Module("module"); FunctionType* funType FunctionType::get(Type::VoidTy, vector<const Type*>(), false); Function* nativeFunction = new Function( funType, GlobalValue::ExternalLinkage, "native", module); Function* llvmFunction = new Function(funType, GlobalValue::ExternalLinkage, "llvmFunction", module); BasicBlock* block = new BasicBlock("Entry", llvmFunction); new CallInst(nativeFunction, vector<Value*>(), "", block); new ReturnInst(block); sys::DynamicLibrary dynamicLibrary; void* nativePointer = dynamicLibrary.GetAddressOfSymbol("nativeFunction"); assert(nativePointer); ExistingModuleProvider* moduleProvider = new ExistingModuleProvider(module); ExecutionEngine* executionEngine ExecutionEngine::create(moduleProvider); executionEngine->addGlobalMapping(nativeFunction, nativePointer); executionEngine->runFunction(llvmFunction, vector<GenericValue>()); } The program generates the following LLVM code: ; ModuleID = 'module' implementation ; Functions: declare void %native() void %llvmFunction() { Entry: call void %native( ) ret void } -------------- next part -------------- A non-text attachment was scrubbed... Name: main.cpp Type: application/octet-stream Size: 1397 bytes Desc: not available URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20060916/f591cffa/attachment.obj> -------------- next part -------------- #0 0x9004802c in kill () #1 0x9012dfb4 in abort () #2 0x94b2d0b0 in __eprintf () #3 0x00074cd4 in llvm::PPCJITInfo::relocate (this=0x0, Function=0x8088004, MR=0x6604b30, NumRelocs=1, GOTBase=0x0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/Target/PowerPC/PPCJITInfo.cpp:205 #4 0x00017c00 in (anonymous namespace)::JITEmitter::finishFunction (this=0x6602f80, F=@0x6604db0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/ExecutionEngine/JIT/JITEmitter.cpp:824 #5 0x0005a984 in (anonymous namespace)::PPCCodeEmitter::runOnMachineFunction (this=0x6603f70, MF=@0x6604db0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/Target/PowerPC/PPCCodeEmitter.cpp:88 #6 0x003ebfcc in llvm::MachineFunctionPass::runOnFunction (this=0x6603f70, F=@0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/include/llvm/CodeGen/MachineFunctionPass.h:37 #7 0x0061ab6c in llvm::FunctionPassManagerT::runPass (this=0x0, P=0x6603f70, F=0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/VMCore/PassManagerT.h:795 #8 0x006385ac in llvm::PassManagerT<llvm::FTraits>::runPasses (this=0x6602f28, M=0x6601ff0, LastUserOf=@0xbfffee08) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/VMCore/PassManagerT.h:596 #9 0x0063bca4 in llvm::PassManagerT<llvm::FTraits>::runOnUnit (this=0x6602f28, M=0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/VMCore/PassManagerT.h:282 #10 0x0061ad18 in llvm::FunctionPassManagerT::runOnFunction (this=0x8, F=@0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/VMCore/PassManagerT.h:884 #11 0x001c4868 in llvm::FunctionPass::run (this=0x6602f10, F=@0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/VMCore/Pass.cpp:256 #12 0x001c49d4 in llvm::FunctionPassManager::run (this=0x6602ec0, F=@0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/VMCore/Pass.cpp:103 #13 0x000126e0 in llvm::JIT::runJITOnFunction (this=0x6602e70, F=0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/ExecutionEngine/JIT/JIT.cpp:244 #14 0x00012b10 in llvm::JIT::getPointerToFunction (this=0x6602e70, F=0x6601ff0) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/ExecutionEngine/JIT/JIT.cpp:282 #15 0x00013580 in llvm::JIT::runFunction (this=0x6602e70, F=0x6601ff0, ArgValues=@0xbffff1dc) at /Users/andreas/build/llvm-1.8/debugBuild/../llvm/lib/ExecutionEngine/JIT/JIT.cpp:85 #16 0x00003190 in main ()
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