3.18.36 OpenRISC Options

These options are defined for OpenRISC:

-mboard=name

Configure a board specific runtime. This will be passed to the linker for newlib board library linking. The default is or1ksim.

-mnewlib

For compatibility, it’s always newlib for elf now.

-mhard-div

Generate code for hardware which supports divide instructions. This is the default.

-mhard-mul

Generate code for hardware which supports multiply instructions. This is the default.

-mcmov

Generate code for hardware which supports the conditional move (l.cmov) instruction.

-mror

Generate code for hardware which supports rotate right instructions.

-msext

Generate code for hardware which supports sign-extension instructions.

-msfimm

Generate code for hardware which supports set flag immediate (l.sf*i) instructions.

-mshftimm

Generate code for hardware which supports shift immediate related instructions (i.e. l.srai, l.srli, l.slli, 1.rori). Note, to enable generation of the l.rori instruction the -mror flag must also be specified.

-msoft-div

Generate code for hardware which requires divide instruction emulation.

-msoft-mul

Generate code for hardware which requires multiply instruction emulation.