mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-19 19:29:31 +00:00
Add support for strto* and v*printf
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12127 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
6b3e3ccf73
commit
3aeb40cadb
@ -585,6 +585,24 @@ void GraphBuilder::visitCallSite(CallSite CS) {
|
||||
if (const PointerType *PTy = dyn_cast<PointerType>(StatTy))
|
||||
N->mergeTypeInfo(PTy->getElementType(), StatBuf.getOffset());
|
||||
}
|
||||
return;
|
||||
} else if (F->getName() == "strtod" || F->getName() == "strtof" ||
|
||||
F->getName() == "strtold") {
|
||||
// These functions read the first pointer
|
||||
if (DSNode *Str = getValueDest(**CS.arg_begin()).getNode()) {
|
||||
Str->setReadMarker();
|
||||
// If the second parameter is passed, it will point to the first
|
||||
// argument node.
|
||||
const DSNodeHandle &EndPtrNH = getValueDest(**(CS.arg_begin()+1));
|
||||
if (DSNode *End = EndPtrNH.getNode()) {
|
||||
End->mergeTypeInfo(PointerType::get(Type::SByteTy),
|
||||
EndPtrNH.getOffset(), false);
|
||||
End->setModifiedMarker();
|
||||
DSNodeHandle &Link = getLink(EndPtrNH);
|
||||
Link.mergeWith(getValueDest(**CS.arg_begin()));
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
} else if (F->getName() == "fopen" || F->getName() == "fdopen" ||
|
||||
F->getName() == "freopen") {
|
||||
@ -748,6 +766,54 @@ void GraphBuilder::visitCallSite(CallSite CS) {
|
||||
if (DSNode *N = getValueDest(**AI).getNode())
|
||||
N->setReadMarker();
|
||||
}
|
||||
return;
|
||||
} else if (F->getName() == "vprintf" || F->getName() == "vfprintf" ||
|
||||
F->getName() == "vsprintf") {
|
||||
CallSite::arg_iterator AI = CS.arg_begin(), E = CS.arg_end();
|
||||
|
||||
if (F->getName() == "vfprintf") {
|
||||
// ffprintf reads and writes the FILE argument, and applies the type
|
||||
// to it.
|
||||
DSNodeHandle H = getValueDest(**AI);
|
||||
if (DSNode *N = H.getNode()) {
|
||||
N->setModifiedMarker()->setReadMarker();
|
||||
const Type *ArgTy = (*AI)->getType();
|
||||
if (const PointerType *PTy = dyn_cast<PointerType>(ArgTy))
|
||||
N->mergeTypeInfo(PTy->getElementType(), H.getOffset());
|
||||
}
|
||||
++AI;
|
||||
} else if (F->getName() == "vsprintf") {
|
||||
// vsprintf writes the first string argument.
|
||||
DSNodeHandle H = getValueDest(**AI++);
|
||||
if (DSNode *N = H.getNode()) {
|
||||
N->setModifiedMarker();
|
||||
const Type *ArgTy = (*AI)->getType();
|
||||
if (const PointerType *PTy = dyn_cast<PointerType>(ArgTy))
|
||||
N->mergeTypeInfo(PTy->getElementType(), H.getOffset());
|
||||
}
|
||||
}
|
||||
|
||||
// Read the format
|
||||
if (AI != E) {
|
||||
if (isPointerType((*AI)->getType()))
|
||||
if (DSNode *N = getValueDest(**AI).getNode())
|
||||
N->setReadMarker();
|
||||
++AI;
|
||||
}
|
||||
|
||||
// Read the valist, and the pointed-to objects.
|
||||
if (AI != E && isPointerType((*AI)->getType())) {
|
||||
const DSNodeHandle &VAList = getValueDest(**AI);
|
||||
if (DSNode *N = VAList.getNode()) {
|
||||
N->setReadMarker();
|
||||
N->mergeTypeInfo(PointerType::get(Type::SByteTy),
|
||||
VAList.getOffset(), false);
|
||||
|
||||
DSNodeHandle &VAListObjs = getLink(VAList);
|
||||
VAListObjs.getNode()->setReadMarker();
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
} else if (F->getName() == "scanf" || F->getName() == "fscanf" ||
|
||||
F->getName() == "sscanf") {
|
||||
|
Loading…
Reference in New Issue
Block a user