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Patch 1 (#5544)

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* Bad Trap on MIPS ADDI ESIL
added $$ to TRAP as per ES_TRAP_DS

* Fixed ADDI logic

Based on QEMU, overflow occurs when the operands have the same sign, but the sign of the result is different.
This commit is contained in:
Jaguar83 2016-08-22 20:36:30 +10:00 committed by radare
parent 59620e1364
commit eb50b7edd1
1 changed files with 2 additions and 2 deletions
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4
libr/anal/p/anal_mips_cs.c
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@ -347,8 +347,8 @@ static int analop_esil(RAnal *a, RAnalOp *op, ut64 addr, const ut8 *buf, int len
break;
case MIPS_INS_ADDI:
PROTECT_ZERO () {
r_strbuf_appendf (&op->esil, "0,32,%s,0xffffffff,&,%s,+,>>,>,?{,1,TRAP,}{,%s,%s,+,%s,=,}",
ARG(2), ARG(1), ARG(2), ARG(1), ARG(0));
r_strbuf_appendf (&op->esil, "30,0x80000000,%s,%s,^,&,>>,31,0x80000000,%s,&,0x80000000,%s,%s,+,&,^,>>,|,1,==,?{,$$,1,TRAP,}{,%s,%s,+,%s,=,}",
ARG(2), ARG(1), ARG(2), ARG(2), ARG(1), ARG(2), ARG(1), ARG(0));
}
break;
case MIPS_INS_DADD: