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

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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).  Fix that.
This commit is contained in:
Thomas Hebb
2022-04-29 21:17:58 -07:00
committed by Alan Modra
parent 2e920d702b
commit 16089f320a
5 changed files with 30 additions and 28 deletions
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opcodes/rl78-dis.c
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@@ -408,7 +408,7 @@ rl78_get_disassembler (bfd *abfd)
{
int cpu = E_FLAG_RL78_ANY_CPU;
if (abfd != NULL)
if (abfd != NULL && bfd_get_flavour (abfd) == bfd_target_elf_flavour)
cpu = abfd->tdata.elf_obj_data->elf_header->e_flags & E_FLAG_RL78_CPU_MASK;
switch (cpu)