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Code Issues Releases Wiki Activity

renormalize join addresses

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This commit is contained in:
caheckman 2020-02-07 15:55:21 -05:00
parent f71dc17292
commit 1c95e274ff
8 changed files with 125 additions and 3 deletions
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7
Ghidra/Features/Decompiler/src/decompile/cpp/ruleaction.cc
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@ -873,8 +873,10 @@ Varnode *RulePullsubMulti::buildSubpiece(Varnode *basevn,uint4 outsize,uint4 shi
data.opSetOpcode(new_op,CPUI_SUBPIECE);
if (usetmp)
outvn = data.newUniqueOut(outsize,new_op);
else
else {
smalladdr1.renormalize(outsize);
outvn = data.newVarnodeOut(outsize,smalladdr1,new_op);
}
data.opSetInput(new_op,basevn,0);
data.opSetInput(new_op,data.newConstant(4,shift),1);
@ -964,6 +966,7 @@ int4 RulePullsubMulti::applyOp(PcodeOp *op,Funcdata &data)
}
// Build new multiequal near original multiequal
PcodeOp *new_multi = data.newOp(params.size(),mult->getAddr());
smalladdr2.renormalize(newSize);
Varnode *new_vn = data.newVarnodeOut(newSize,smalladdr2,new_multi);
data.opSetOpcode(new_multi,CPUI_MULTIEQUAL);
data.opSetAllInput(new_multi,params);
@ -2005,6 +2008,7 @@ int4 RuleLeftRight::applyOp(PcodeOp *op,Funcdata &data)
addr = addr + isa;
data.opUnsetInput(op,0);
data.opUnsetOutput(leftshift);
addr.renormalize(tsz);
Varnode *newvn = data.newVarnodeOut(tsz,addr,leftshift);
data.opSetOpcode(leftshift,CPUI_SUBPIECE);
data.opSetInput(leftshift, data.newConstant( leftshift->getIn(1)->getSize(), 0), 1);
@ -7456,6 +7460,7 @@ Varnode *RulePtrFlow::truncatePointer(AddrSpace *spc,PcodeOp *op,Varnode *vn,int
Address addr = vn->getAddr();
if (addr.isBigEndian())
addr = addr + (vn->getSize() - spc->getAddrSize());
addr.renormalize(spc->getAddrSize());
newvn = data.newVarnodeOut(spc->getAddrSize(),addr,truncop);
}
data.opSetInput(op,newvn,slot);