Tony Wasserka 1c86f7ed36 Thunks/gen: Support annotating guest-exclusive function pointers ...

Function pointer arguments given to the guest thunk library aren't
callable on the host, so they need special handling on a case-by-case
basis. Similar problems arise when the guest-side tries to consume a
pointer returned from a native host library. To automate some common
scenarios, this change adds two new annotations:

"callback_guest" indicates the callback parameter is never called on the
host and hence can be marshalled like any other argument. Accidental host
calls to the function pointer are prevented by wrapping it in an opaque
type alias.

"returns_guest_pointer" indicates that the host function returns a pointer
usable in the guest context. This applies e.g. to functions that derive
the returned pointer from input guest pointer arguments.

2021-12-10 11:24:58 +01:00

..

CMakeLists.txt

Thunks/gen: Add unit tests

2021-12-10 11:24:57 +01:00

generator.cpp

Thunks/gen: Support annotating guest-exclusive function pointers

2021-12-10 11:24:58 +01:00