[PATCH] opcodes: don't assume ELF in riscv, csky, rl78, mep disassemblers

[Alan Modra]

On Fri, Apr 29, 2022 at 09:17:58PM -0700, Thomas Hebb via Binutils wrote:
> Currently, the get_disassembler() implementations for riscv, csky, and
> rl78--and mep_print_insn() for mep--access ELF variants of union fields
> without first checking that the bfd actually represents an ELF. This
> causes undefined behavior and crashes when disassembling non-ELF files
> (the "binary" BFD, for example).

Thanks, committed.

-- 
Alan Modra
Australia Development Lab, IBM