How to link llc-generated Obj file into executable file?

I have wroten a new backend for loongarch 32-bit version, I can generate .o and .s file through llc command, and they looks just fine :slightly_smiling_face :

But when I tried to use gcc to link them into executable file, it will say:

For now, the gcc tool-chain on LoongSon server only surpport 64-bit compiling, so I have to transform the .o file into executable file in somewhere else and then run it on server.