================
@@ -314,6 +449,127 @@ getFuchsiaHandleSymbols(QualType QT, SVal Arg,
ProgramStateRef State) {
return {};
}
+bool FuchsiaHandleChecker::needsInvalidate(const CallEvent &Call) const {
+ const FunctionDecl *FuncDecl =
dyn_cast_or_null<FunctionDecl>(Call.getDecl());
+
+ assert(FuncDecl && "Should have FuncDecl at this point");
+
+ for (unsigned Arg = 0; Arg < Call.getNumArgs(); ++Arg) {
+ if (Arg >= FuncDecl->getNumParams())
+ break;
+ const ParmVarDecl *PVD = FuncDecl->getParamDecl(Arg);
+
+ if (PVD->getType()->isAnyPointerType() &&
+ (hasFuchsiaAttr<ReleaseHandleAttr>(PVD) ||
+ hasFuchsiaAttr<AcquireHandleAttr>(PVD) ||
+ hasFuchsiaUnownedAttr<AcquireHandleAttr>(PVD))) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+ProgramStateRef
+FuchsiaHandleChecker::evalArgsAttrs(const CallEvent &Call, CheckerContext &C,
+ ProgramStateRef State) const {
+ const FunctionDecl *FuncDecl =
dyn_cast_or_null<FunctionDecl>(Call.getDecl());
+ SymbolRef ResultSymbol = nullptr;
+
+ assert(FuncDecl && "Should have FuncDecl at this point");
+
+ if (const auto *TypeDefTy = FuncDecl->getReturnType()->getAs<TypedefType>())
+ if (TypeDefTy->getDecl()->getName() == ErrorTypeName) {
+ SValBuilder &SVB = C.getSValBuilder();
+ const LocationContext *LC = C.getLocationContext();
+ auto RetVal = SVB.conjureSymbolVal(
+ Call.getOriginExpr(), LC, FuncDecl->getReturnType(), C.blockCount());
+
+ State = State->BindExpr(Call.getOriginExpr(), LC, RetVal);
+ ResultSymbol = RetVal.getAsSymbol();
+ }
+
+ for (unsigned Arg = 0; Arg < Call.getNumArgs(); ++Arg) {
+ if (Arg >= FuncDecl->getNumParams())
+ break;
+ const ParmVarDecl *PVD = FuncDecl->getParamDecl(Arg);
+ SmallVector<SymbolRef, 1024> Handles =
+ getFuchsiaHandleSymbols(PVD->getType(), Call.getArgSVal(Arg), State);
+
+ for (SymbolRef Handle : Handles) {
+ if (hasFuchsiaAttr<ReleaseHandleAttr>(PVD)) {
+ State =
+ State->set<HStateMap>(Handle, HandleState::getReleased(Arg + 1));
+ } else if (hasFuchsiaAttr<AcquireHandleAttr>(PVD)) {
+ State = State->set<HStateMap>(
+ Handle, HandleState::getMaybeAllocated(ResultSymbol, Arg + 1));
+ } else if (hasFuchsiaUnownedAttr<AcquireHandleAttr>(PVD)) {
+ State = State->set<HStateMap>(Handle, HandleState::getUnowned(Arg +
1));
+ }
+ }
+ }
+
+ return State;
+}
+
+ProgramStateRef FuchsiaHandleChecker::evalFunctionAttrs(
+ const CallEvent &Call, CheckerContext &C, ProgramStateRef State) const {
+ const FunctionDecl *FuncDecl =
dyn_cast_or_null<FunctionDecl>(Call.getDecl());
+
+ assert(FuncDecl && "Should have FuncDecl at this point");
+
+ if (!hasFuchsiaAttr<AcquireHandleAttr>(FuncDecl) &&
+ !hasFuchsiaUnownedAttr<AcquireHandleAttr>(FuncDecl))
+ return State;
+
+ SValBuilder &SVB = C.getSValBuilder();
+ const LocationContext *LC = C.getLocationContext();
+ auto RetVal = SVB.conjureSymbolVal(Call.getOriginExpr(), LC,
+ FuncDecl->getReturnType(),
C.blockCount());
+ State = State->BindExpr(Call.getOriginExpr(), LC, RetVal);
+
+ SymbolRef RetSym = RetVal.getAsSymbol();
+
+ assert(RetSym && "Symbol should be there");
+
+ if (hasFuchsiaAttr<AcquireHandleAttr>(FuncDecl)) {
+ State = State->set<HStateMap>(RetSym,
+ HandleState::getMaybeAllocated(nullptr, 0));
+ } else {
+ State = State->set<HStateMap>(RetSym, HandleState::getUnowned(0));
+ }
+
+ return State;
+}
+
+bool FuchsiaHandleChecker::evalCall(const CallEvent &Call,
+ CheckerContext &C) const {
+ const FunctionDecl *FuncDecl =
dyn_cast_or_null<FunctionDecl>(Call.getDecl());
+ // Checker depends on attributes attached to function definition, so there is
----------------
NagyDonat wrote:
```suggestion
// Checker depends on attributes attached to function declaration, so there is
```
Did you mean function "declaration" here (instead of definition)? (I'm just
guessing because I don't see anythong that gets the actual definition.)
https://github.com/llvm/llvm-project/pull/111588
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