S12Z: Don't crash when disassembling invalid instructions.
Check for null before dereferencing an operand pointer. Normally this situation should never arise, but could happen if a "partial" instruction is encountered at the end of a file or section. opcodes/ * s12z-dis.c (print_insn_s12z): Do not dereference an operand if it is null.
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@ -1,6 +1,8 @@
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2019-01-09 John Darrington <john@darrington.wattle.id.au>
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* s12z-dis.c (opr_emit_disassembly): Do not omit an index if it is
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* s12z-dis.c (print_insn_s12z): Do not dereference an operand
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if it is null.
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-dis.c (opr_emit_disassembly): Do not omit an index if it is
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zero.
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2019-01-09 Andrew Paprocki <andrew@ishiboo.com>
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@ -351,7 +351,7 @@ print_insn_s12z (bfd_vma memaddr, struct disassemble_info* info)
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(struct mem_read_abstraction_base *) &mra);
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(info->fprintf_func) (info->stream, "%s", mnemonics[(long)operator]);
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/* Ship out size sufficies for those instructions which
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need them. */
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if (osize == -1)
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@ -359,7 +359,7 @@ print_insn_s12z (bfd_vma memaddr, struct disassemble_info* info)
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bool suffix = false;
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for (o = 0; o < n_operands; ++o)
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{
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if (operands[o]->osize != -1)
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if (operands[o] && operands[o]->osize != -1)
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{
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if (!suffix)
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{
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