Problems with llvm-gcc and gold plugin

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1

Hi everyone,

I'm new to LLVM and I'm still trying to learn how to get everything up and running. I'm trying to use llvm-gcc with the gold plugin and it complains that it can't find LLVMgold.so. As a simple test case I wrote a very basic C file:
--- main.c ---
int main () {
         return 0;
}

2

Hi everyone,

I'm new to LLVM and I'm still trying to learn how to get everything up
and running. I'm trying to use llvm-gcc with the gold plugin and it
complains that it can't find LLVMgold.so. As a simple test case I
wrote a very basic C file:
--- main.c ---
int main () {
          return 0;
}
------
and compiled it with:
$ llvm-gcc -use-gold-plugin main.c
llvm-gcc: -use-gold-plugin, but LLVMgold.so not found.

The file in question, LLVMgold.so, was successfully compiled into
llvm/Release+Asserts/lib/LLVMgold.so and I copied it into
llvm-gcc/libexec/gcc/x86_64-unknown-linux-gnu/4.2.1/LLVMgold.so. It is
my understanding that the file is looked for in the same directory
that has cc1 and I have a
llvm-gcc/libexec/gcc/x86_64-unknown-linux-gnu/4.2.1/cc1.

Does anyone know what I am missing?

I think you also need to copy libLTO.so, but I would recommend trying clang instead of llvm-gcc.

Thanks.

-- Luis D. Pedrosa

Cheers,
Rafael

3

Thanks for the help, Rafael.

I had already copied that file as well, so that is not the issue. Any other
ideas?

As for using clang instead, I am actually going to be using klee and similar
analysis tools (cloud9). Their documentation is based on llvm-gcc, which is
why I took that route. I was trying to deviate from the their vanilla
installation as little possible, but if all else fails I can try clang and see
if it works.

Thanks.

-- Luis D. Pedrosa