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Code Issues Releases Wiki Activity

Different widening strategies

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This commit is contained in:
caheckman 2019-06-06 12:38:01 -04:00
parent 8565f43e06
commit 32793712fe
3 changed files with 173 additions and 64 deletions
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19
Ghidra/Features/Decompiler/src/decompile/cpp/ifacedecomp.cc
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@ -2483,6 +2483,16 @@ void IfcAnalyzeRange::execute(istream &s)
if (dcp->fd == (Funcdata *)0)
throw IfaceExecutionError("No function selected");
bool useFullWidener;
string token;
s >> ws >> token;
if (token == "full")
useFullWidener = true;
else if (token == "partial") {
useFullWidener = false;
}
else
throw IfaceParseError("Must specify \"full\" or \"partial\" widening");
Varnode *vn = iface_read_varnode(dcp,s);
vector<Varnode *> sinks;
vector<PcodeOp *> reads;
@ -2495,7 +2505,14 @@ void IfcAnalyzeRange::execute(istream &s)
Varnode *stackReg = dcp->fd->findSpacebaseInput(dcp->conf->getStackSpace());
ValueSetSolver vsSolver;
vsSolver.establishValueSets(sinks, reads, stackReg, false);
vsSolver.solve(10000);
if (useFullWidener) {
WidenerFull widener;
vsSolver.solve(10000,widener);
}
else {
WidenerNone widener;
vsSolver.solve(10000,widener);
}
list<ValueSet>::const_iterator iter;
for(iter=vsSolver.beginValueSets();iter!=vsSolver.endValueSets();++iter) {
(*iter).printRaw(*status->optr);