This is a big step to split revng-lift in two parts: one that only
writes the model and one that actually lifts to LLVM IR.
* Introduce `revng import binary`
* Split off `BinaryFile.h`
* Drop `revng.h`
* `GeneratedCodeBasicInfo`: use model
* Reduce role of `GeneratedCodeBasicInfo` in favor of
`model::Architecture` and `model::Register` methods
* `CodeGenerator`: adopt `RawBinaryView` and model
* `JumpTargetManager`: adopt `RawBinaryView` and model
* `ExternalJumpsHandler`: adopt model
* `InstructionTranslator`: discard `Architecture` in favor of
`EndianessMismatch`
* Many other changes
The version of callOnPathSteps without an actual instance was completely
ignoring the upcasted type of `UpcastablePointer`s. We now fix this by
calling the right template specialization, which we choose by inspecting
the key of the `UpcastablePointer`.
Model classes are now described by a YAML document, which is used to
generate C++ headers containing classes and all the boilerplate
required for YAML serialization/deserialization, usage in
SortedVectors, etc. See the README in include/revng/Model for more
info.
A dereference iterator is used to map a pointer-like object to the
pointee, as an example given a `vector<unique_ptr<int>> Vector`, using
`dereferenceRange(Vector)` will present a range of `int &` rather than a
range of `unique_ptr<int> &`.
mapToValueIterator can be used on a map range
to access the underlying object directly rather
than the pair<key, object>.
This allows e.g. the following programming pattern:
```
RecursiveCoroutine<std::optional<SomeType>> f();
int g() {
return *f();
}
```
Without operator* defined for `RecursiveCoroutine` this would fail,
requiring an explicit cast such as:
```
int g() {
return *static_cast<std::optional<SomeType>>(f());
}
```
Before this commit `is_specialization<const X<T>, X>` was not
specialized, so that `const X<T>` did not count as a specialization of
`X`. This resulted in bad selection of template specialization based on
concepts that were using `is_specialization_v`, such as
`IsUpcastablePointer`.
This commit fixes the problem, so that now the concept
`IsUpcastablePointer` is true for `const UpcastablePointer<T>` as well.
This also enabled to remove some workarounds for the `IsMutableSet` and
`IsSortedVector` concepts, and treat them uniformly with other concepts
that were using `is_specialization_v`.
ConcreteTupleTreeKeyWrapper::clone() should cleanup the Target object
befor cloning, otherwise the destructor of the inner Pointer object
is never called.
This commit introduces the type system of the model along with several
various other improvements to the model and its users.
* Introduce the type system.
* Introduce possibility to tag certain fields in the model as to be
optional during YAML serialization.
* All the `Name` fields have been replaced in favor of `CustomName` plus
a `name` method that will use `CustomName` if available, or an
automatically generated name otherwise.
* Make TupleTreeReferences behavior more robust: now you either need to
have a valid pointer to `Root` and a `Path` or be default constructed
(`nullptr` for `Root` and an empty `Path`). Any other configuration is
invalid.
* The type system introduces `RawFunctionType`: this superseds the
previous way in which we were specifying arguments and return
values. Users of such information have been updated accordingly.
Alessandro Di Federico