Cecil has a fall-back mode where it looks in the GAC / system mono for
assemblies when failing to find them elsewhere. This is not the expected
behavior when using Xamarin.Mac in the Full/XM mode, because then we should
only resolve to assemblies shipped with Xamarin.Mac.
Unfortunately doing so will break apps (our own tests break), so instead
change our resolution to be explicit about where we find assemblies, and if we
find assemblies in the GAC / system mono when we're not supposed to, then show
a warning.
Also add a fall-back mechanism, where we use the old logic instead, in case
the new logic is not 100% compatible with the old one.
This showed up when I tried to port mmp to dotnet, because then Cecil stopped
looking in the GAC / system mono for assemblies (Cecil has a special case when
running on Mono to look in Mono's GAC), and tests started failing.
* [MMP] Revert recursive search dirs changes
* [MMP] Allow resolving assemblies to the ones passed in command line args
This is what actually makes the MonoMacResolver actually resolve to
assemblies given as arguments.
This mirrors the behaviour of Pack, which is called on the other
code-path (that's not --runregistrar)
3113c5d2b5/tools/mmp/driver.cs (L513)
* [mtouch][mmp] Report invalid debug symbols files. Fixes#3200
Try to read the assembly with symbols and, if that fails, warn and
fallback to loading them without symbols.
This fixes cases were it's not easy to update or delete (e.g. nuget)
bad symbols files - so this cannot be an error without causing a lot
of pain.
However it needs to be reported, otherwise it wont be fixed (by the
publisher) and it can limit the debugability of the application and
the usefulness of the stacktraces.
Finally merge most of the resolver's code between mtouch and mmp so
we don't have to fix such issue twice anymore.
note: this needs to be slightly updated once we get a version of cecil
that can give us a more precise error message.
Also bring Rolf's tests from
https://github.com/xamarin/xamarin-macios/pull/3079
reference:
https://github.com/xamarin/xamarin-macios/issues/3200
- https://bugzilla.xamarin.com/show_bug.cgi?id=60277
- Teach mmp and mtouch resolver to always ask for symbol reading from Cecil
- In most cases we explicitly load symbols (LoadReferencesStep) but when we don't rewritten assemblies don't match their pdb and we break debugging.
* Bump [watch-]mono to master to get fix for #43658.
https://bugzilla.xamarin.com/show_bug.cgi?id=43658
* [mtouch/mmp] Fix build after breaking cecil update in mono.
Also use mono's cecil instead of our own cecil submodule for mtouch.
* Bump [watch-]mono to get compilation fixes after cecil bump in mono.
* Remove cecil submodule, we only use the one in mono now.
Rolf Bjarne Kvinge
Manuel de la Pena
Marius Ungureanu
Sebastien Pouliot
Chris Hamons