* Extract the code we use to configure the assembly resolver during a normal
mmp run to make it usable for --runregistrar.
* Configure the assembly resolver we use for --runregistrar.
* Pass the assembly resolver to the registrar so that it's actually used.
* Adjust the System.Void lookup to look everywhere even if we find a corlib,
since behavior changes a bit now that we're using an assembly resolver:
* Previous behavior:
1. In .NET mode, look for a corlib named System.Private.CoreLib, and fail to find it.
2. Look in all the loaded assemblies for System.Void (and find it in System.Runtime.dll).
* Broken behavior as a result of the resolver changes:
1. Find corlib as System.Private.CoreLib.dll
2. Fail to find System.Void in System.Private.CoreLib.dll, since we'd only look in corlib.
* New behavior
1. Find corlib as System.Private.CoreLib.dll
2. Fail to find System.Void in System.Private.CoreLib.dll, but find it in System.Runtime.dll,
since we're now looking in all the loaded assemblies.
This is required to make VSMac's usage of --runregistrar
This solves a rebuild problem if an assembly has an invalid or unsupported symbol
file, where we'd detect that the symbol file exists, and expect it to be copied,
but then the linker would drop it, causing us to always rebuild the app (this is
not the same as when a symbol file is out of date).
This happens for NUnitLite 3.12.0's nunit.framework.dll, which ships with an old-style
pdb.
Also add a warning that is shown when we detect that there's a symbol file, but it
couldn't be loaded for some reason.
* Move much of ErrorHandler.cs into a partial class in ErrorHandler.tools.cs,
which is referenced by mtouch and mmp (but not our runtime).
* Add ErrorHandler.runtime.cs for runtime-specific bits, including a simpler
version of ErrorHandler.Show. In particular this gets rid of the call to
Environment.Exit, which should never happen at runtime.
* Rename MonoTouchException and MonoMacException to ProductException, which
allows us to remove a lot of ifdefs.
* This required moving Application.LoadSymbols and Target.LoadSymbols to
shared mtouch/mmp code.
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.
Commit list for mono/mono:
* mono/mono@1c24c158b0 [bitcode] Fix the generation of invalid llvm IR for some Span code.
* mono/mono@a49a68c6d7 [interp] Fix native to interp transition (#8957)
* mono/mono@92e11812f4 [System.Runtime.Serialization] Makes more APIs work for mobile
* mono/mono@260676f948 Bump API snapshot submodule
* mono/mono@eefdf4ed31 Bump external/cecil to b6c50e3
* mono/mono@0754926394 [2018-02] Finalize merp integration (#8869)
Diff: 7bdb7dd765...1c24c158b0
* [mtouch][mmp] Have CoreResolver check for the new SymbolsNotMatchingException from Cecil
* [tests] Rebuild MX4175 in a separate .app to avoid debug symbol warnings
The newer cecil version is better at detecting incorrect .mdb, like the
test is using, resulting in warnings since the 2nd build (same location)
was done without symbols (so old ones were loaded).
Stale debug symbols is not the goal of the MX4175 test. Rebuilding the
.app in another directory solves the extra warning issue.
In my test project 969828 instances (67MB) of `ReaderParameters` were
created by `CoreResolver.Resolve`, which always allocated a new one.
Since we already create them, most of the time*, we can reuse the
instances when additional members requires resolving.
* only 14 additional instances are now required
* [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
Rolf Bjarne Kvinge
Waleed Chaudhry
Sebastien Pouliot
Marius Ungureanu