4.7 ld and the MIPS family

The `--insn32' and `--no-insn32' options control the choice of microMIPS instructions used in code generated by the linker, such as that in the PLT or lazy binding stubs, or in relaxation. If `--insn32' is used, then the linker only uses 32-bit instruction encodings. By default or if `--no-insn32' is used, all instruction encodings are used, including 16-bit ones where possible.