[LLVMdev] fPIC in llvm 2.6

[Daniel Dunbar]

On Sun, Oct 3, 2010 at 11:13 AM, Anton Korobeynikov
<anton at korobeynikov.info> wrote:
>> Is fPIC broken on x86_64 in LLVM 2.6?
> No, it works w/o any problems
>
>> -------------------
>>  > llvm-gcc -Iinclude -emit-llvm -fPIC -O3 -c -o file.opt.bc  file.c
>>  > llvm-ld -native -Xlinker=-shared -Xlinker=-Wl,-soname,libtest.so -o
>> file.so file.opt.bc
>> -------------------
> PIC-ness is a backend option. So, passing -fPIC to llvm-gcc does not
> make any sense, it is not saved into the bytecode.
> Try passing -relocation-model=pic to llvm-ld, or just compile
> everything via llvm-gcc which known how to pass necessary options to
> backend :)

Alternately, use Clang to compile your bitcode files, which also knows
how to pass the necessary options to the backend in that case! :)

 - Daniel

> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University
>
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