RISC-V-Options - Using as

The following table lists all available RISC-V specific options.

-fpic
-fPIC: Generate position-independent code
-fno-pic: Don't generate position-independent code (default)
-march=ISA: Select the base isa, as specified by ISA. For example -march=rv32ima.
-mabi=ABI: Selects the ABI, which is either "ilp32" or "lp64", optionally followed by "f", "d", or "q" to indicate single-precision, double-precision, or quad-precision floating-point calling convention, or none to indicate the soft-float calling convention. Also, "ilp32" can optionally be followed by "e" to indicate the RVE ABI, which is always soft-float.
-mrelax: Take advantage of linker relaxations to reduce the number of instructions required to materialize symbol addresses. (default)
-mno-relax: Don't do linker relaxations.