search for: r_riscv_cal

...king at function calls which in the RISCV backend are represented via two pseudoinstructions RISCV::TAIL and RISCV::CALL. Currently those pseudos are lowered in MCCodeEmitter. They are expanded into AUIPC and JALR instructions and the first one needs a relocation, which for a static reloc model is R_RISCV_CALL but for PIC code should be R_RISCV_CALL_PLT. The problem I find is that at this point it is too late to tell the exact relocation needed: as far as I can tell there is no way to determine the relocation model. Perhaps this is on purpose and the MCCodeEmitter should not have that knowledge. Or may...