Displaying 1 result from an estimated 1 matches for "r_riscv_call".
2018 Jul 10
6
[RISCV][PIC] Lowering pseudo instructions in MCCodeEmitter vs AsmPrinter
...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 mayb...