[LLVMdev] fPIC in llvm 2.6
Ryan M. Lefever
lefever at illinois.edu
Sun Oct 3 19:47:57 PDT 2010
The reason I was linking via llvm-ld is because I didn't know how to
pass bitcode files to llvm-gcc. How can I do that?
Anton Korobeynikov 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 :)
>
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