[LLVMdev] Kaleidoscope doesn't work properly

[srs]

Link with -rdynamic or provide a mapping.

/Stein Roger

Andrii Vasyliev wrote:
> Hi
>
> I hope this is a proper place to put my question.
>
> I've compiled Kaleidoscope from "Adding JIT and Optimizer Support"  tutorial.
> Basically it works just fine but when I try to run extern'ed putchard
> function it aborts.
> Please, tell me what am I doing wrong?
>
> Here is more information:
> My PC runs FreeBSD.
> I've copied the toy source code exactly and didn't change it.
>
> Here is the log:
> # ./toy
> ready> extern putchard(x);
> ready> Read extern:
> declare double @putchard(double)
>
> ready> def asd (a) putchard(a);
> ready> Read function definition:
> define double @asd(double %a) {
> entry:
>         %calltmp = call double @putchard( double %a )           ;
> <double> [#uses=1]
>         ret double %calltmp
> }
>
> ready> asd(120);
> ready> ERROR: Program used external function 'putchard' which could
> not be resolved!
> Abort (core dumped)
>
> Here is the backtrace from the toy.core:
> (gdb) backtrace
> #0  0x4889cbb7 in kill () from /lib/libc.so.7
> #1  0x4868d146 in raise () from /lib/libthr.so.3
> #2  0x4889b76a in abort () from /lib/libc.so.7
> #3  0x0831f8a0 in llvm::JIT::getPointerToNamedFunction ()
> #4  0x0832177a in llvm::JIT::getPointerToFunction ()
> #5  0x083275a2 in (anonymous namespace)::JITEmitter::getPointerToGlobal ()
> #6  0x083280e4 in (anonymous namespace)::JITEmitter::finishFunction ()
> #7  0x0805f8d0 in (anonymous namespace)::Emitter::runOnMachineFunction ()
> #8  0x081deee8 in llvm::MachineFunctionPass::runOnFunction ()
> #9  0x08561cd7 in llvm::FPPassManager::runOnFunction ()
> #10 0x08562185 in llvm::FunctionPassManagerImpl::run ()
> #11 0x08562337 in llvm::FunctionPassManager::run ()
> #12 0x0831f9ec in llvm::JIT::runJITOnFunction ()
> #13 0x08321847 in llvm::JIT::getPointerToFunction ()
> #14 0x0804f680 in MainLoop () at toy.cpp:508
> #15 0x0804ff12 in main () at toy.cpp:590
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