[LLVMdev] Error: unsupported GC: vmkit

[Alexander Betts]

On Jun 21, 2012, at 4:57 AM, Shyam Patro wrote:

> Hi,
> I have recently installed llvm-3.1 , gnu classpath-0.97.2  and vmkit 
> I compiled a simple java file "hello.java" to hello.class 
> Then converted hello.class to llvm bytecode(hello.bc) using vmjc from vmkit
> when i tried to run "hello.bc" using lli
> 
> I am getting the following error 
> 
> shyam at shyam:~$ cat hello.java
> import java.io.*; 
> 
> class hello {
> 
>   public static void main(String[] args) 
>     { 
> 	 System.out.println("Hello world\n");
>   }
> }
> shyam at shyam:~$ javac hello.java -o hello.class
> shyam at shyam:~$ vmjc hello.class -o hello.bc
> shyam at shyam:~$ lli hello.bc
> 
> unsupported GC: vmkit
> UNREACHABLE executed at /home/shyam/llvm-3.1.src/lib/CodeGen/GCMetadata.cpp:99!
> 0  lli 0x089a5778
> Stack dump:
> 0.	Program arguments: lli hello.ll 
> Aborted
> 
> Please help me out 

Hi Shyam --

Haven't tried using vmjc's output with lli, but I encountered a similar error getting it to work with llc. With llc, you have to tell it to load the library that provides the garbage collector plugin:

llc -load=/path/to/vmkit/lib/StaticGCPrinter.so -o hello.s hello.bc

-- Alex
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