* Convert the GCHandles interface from 32-bit ints to pointer size types
This involves:
* Stop using some bits of the GCHandle to store extra flags, instead add an extra
field to store those flags.
* Define a INVALID_GCHANDLE constant and use it instead of 0/NULL. This is not
strictly required, but it makes the code more self-documenting.
* Define a GCHandle type (typedef'ed to void*) and change all variables and parameters
to use it instead of guint32.
* Use our own xamarin_gchandle_* methods (with pointer-sized types) that wraps
the mono_gchandle_* embedding API (which uses 32-bit types) everywhere.
* Update managed code (registrars, runtime code, etc) accordingly.
* [runtime] Make debug code compile.
* Fix typo.
* Fix signature of xamarin_create_gchandle.
Co-authored-by: Aaron R Robinson <arobins@microsoft.com>
* [Runtime] Enable the -Wshorten-64-to-32 flag and fix all warnings.
We want to enable the -Wconversion but that will raise too many warning
for a single commit. We are enabiling one by one the flags included in
-Wconversion so that we have smaller diffs.
-Wshorten-64-to-32 adds warnings when there is a implicit conversion that
loses integer precision. We are moving all the 32 to 64 conversions to
use 64. Expecially since most of the code changed is related with sizes,
legths and params counts that are never going to be negative.
Co-Authored-By: Rolf Bjarne Kvinge <rolf@xamarin.com>
Enable the -Wsign-compare which will raise issues when a comparison
between signed and unsigned values could produce an incorrect result
and fix all the raised warnings.
In [this][1] innocuous-looking commit I made the x86_64 dynamic registrar
crash when TRACE is defined. The underlying problem is that CallState's rsi
field is re-used as rax upon exit of the trampoline. This means that the
CallState.sel () function that gets the selector, will instead get the return
value upon exit. When TRACE is defined, we try to print the selector upon
exiting the trampoline, and since the rsi field is now the rax field, we end
up trying to print the return value as if it were a selector, and things go
slightly sideways.
[1]: https://github.com/xamarin/xamarin-macios/commit/464882d14a83
* [runtime] Add an inner exception parameter to Runtime.CreateProductException.
This allows us to simplify code by using inner (and outer) exceptions as
a means to provide information instead of passing extra information
around in order to create decent exceptions.
One example is how we pass the selector and method name to the method
that converts from a native id to a managed NSObject instance: passing
this information is not necessary anymore if we can use two exceptions,
one for the failure to convert from an id to a NSObject instance,
wrapped in a second that tells which method/selector call ran into this
conversion problem.
* [runtime] Throw better exceptions when the dynamic registrar can't marshal something.
* [runtime] Throw a better exception when something goes wrong when trying to marshal a return value.
* [runtime] Use inner exceptions to convey failure information instead of trying to create a single exception with all we know.
* Fix merge problem.
* [runtime] Clean up public symbols. Fixes#5124.
Clean up public symbols, by:
* Symbols that don't need to be public (most of them), can be private.
* Prefix all public symbols with `xamarin_`.
* Add a test to ensure we don't introduce new public symbols.
* Use C symbols instead of mangled C++ symbols, since those are easier to
handle in the test.
This minimizes the chance of getting into a symbol clash with another native library.
Fixes https://github.com/xamarin/xamarin-macios/issues/5124.
* Some test fixes.
trampolines-i386.m:126:19: warning: Assigned value is garbage or undefined
it->state->edx = v[1];
^ ~~~~
trampolines-x86_64.m:410:16: warning: Assigned value is garbage or undefined
*reg_ptr = v [stores];
^ ~~~~~~~~~~
trampolines-x86_64.m:447:14: warning: Assigned value is garbage or undefined
*reg_ptr = v [stores++];
^ ~~~~~~~~~~~~
Rolf Bjarne Kvinge
Manuel de la Pena