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Set prototype on this parameters

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This commit is contained in:
caheckman 2020-09-10 14:56:14 -04:00
parent d57f11b6bf
commit 662c7043c6
1 changed files with 21 additions and 9 deletions
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24
Ghidra/Features/Decompiler/src/decompile/cpp/typeop.cc
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@ -577,12 +577,17 @@ Datatype *TypeOpCall::getInputLocal(const PcodeOp *op,int4 slot) const
// Its false to assume that the parameter symbol corresponds
// to the varnode in the same slot, but this is easiest until
// we get giant sized parameters working properly
if ((fc->numParams() == op->numInput()-1)||(fc->isDotdotdot())) {
ProtoParameter *param = fc->getParam(slot-1);
if ((param != (ProtoParameter *)0)&&(param->isTypeLocked())) {
ProtoParameter *param = fc->getParam(slot - 1);
if (param != (ProtoParameter*) 0) {
if (param->isTypeLocked()) {
ct = param->getType();
if ((ct->getMetatype() != TYPE_VOID)&&
(ct->getSize() <= op->getIn(slot)->getSize())) // parameter may not match varnode
if ((ct->getMetatype() != TYPE_VOID) && (ct->getSize() <= op->getIn(slot)->getSize())) // parameter may not match varnode
return ct;
}
else if (param->isThisPointer()) {
// Known "this" pointer is effectively typelocked even if the prototype as a whole isn't
ct = param->getType();
if (ct->getMetatype() == TYPE_PTR && ((TypePointer*) ct)->getPtrTo()->getMetatype() == TYPE_STRUCT)
return ct;
}
}
@ -630,11 +635,18 @@ Datatype *TypeOpCallind::getInputLocal(const PcodeOp *op,int4 slot) const
if (fc == (const FuncCallSpecs *)0)
return TypeOp::getInputLocal(op,slot);
ProtoParameter *param = fc->getParam(slot-1);
if ((param != (ProtoParameter *)0)&&(param->isTypeLocked())) {
if (param != (ProtoParameter *)0) {
if (param->isTypeLocked()) {
ct = param->getType();
if (ct->getMetatype() != TYPE_VOID)
return ct;
}
else if (param->isThisPointer()) {
ct = param->getType();
if (ct->getMetatype() == TYPE_PTR && ((TypePointer *)ct)->getPtrTo()->getMetatype() == TYPE_STRUCT)
return ct;
}
}
return TypeOp::getInputLocal(op,slot);
}