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Fix mono alc from gchandle #62120

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Merged
lateralusX merged 5 commits into from
Nov 30, 2021
Merged

Fix mono alc from gchandle #62120

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39ddeb6
remove MonoManagedAssemblyLoadContext
srxqds Nov 29, 2021
9eb9381
fix mono_alc_from_gchandle use field
srxqds Nov 29, 2021
492e6fa
change by vargaz review
srxqds Nov 29, 2021
be49aaf
formatting
srxqds Nov 29, 2021
1d50000
fixed compiler error
srxqds Nov 29, 2021
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18 changes: 13 additions & 5 deletions src/mono/mono/metadata/assembly-load-context.c
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Original file line number Diff line number Diff line change
Expand Up @@ -424,11 +424,19 @@ mono_alc_from_gchandle (MonoGCHandle alc_gchandle)
if (alc_gchandle == default_alc->gchandle)
return default_alc;

HANDLE_FUNCTION_ENTER ();
MonoManagedAssemblyLoadContextHandle managed_alc = MONO_HANDLE_CAST (MonoManagedAssemblyLoadContext, mono_gchandle_get_target_handle (alc_gchandle));
g_assert (!MONO_HANDLE_IS_NULL (managed_alc));
MonoAssemblyLoadContext *alc = MONO_HANDLE_GETVAL (managed_alc, native_assembly_load_context);
HANDLE_FUNCTION_RETURN_VAL (alc);
MONO_STATIC_POINTER_INIT (MonoClassField, resolve)

MonoClass *alc_class = mono_class_get_assembly_load_context_class ();
g_assert (alc_class);
resolve = mono_class_get_field_from_name_full (alc_class, "_nativeAssemblyLoadContext", NULL);

MONO_STATIC_POINTER_INIT_END (MonoClassField, resolve)

g_assert (resolve);

MonoAssemblyLoadContext *alc = NULL;
mono_field_get_value_internal (mono_gchandle_get_target_internal (alc_gchandle), resolve, &alc);
return alc;
}

MonoGCHandle
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7 changes: 0 additions & 7 deletions src/mono/mono/metadata/object-internals.h
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Expand Up @@ -1406,13 +1406,6 @@ typedef enum {
UNLOADING = 1
} MonoManagedAssemblyLoadContextInternalState;

// Keep in sync with System.Runtime.Loader.AssemblyLoadContext
typedef struct {
MonoObject object;
MonoAssemblyLoadContext *native_assembly_load_context;
} MonoManagedAssemblyLoadContext;

TYPED_HANDLE_DECL (MonoManagedAssemblyLoadContext);

/* All MonoInternalThread instances should be pinned, so it's safe to use the raw ptr. However
* for uniformity, icall wrapping will make handles anyway. So this is the method for getting the payload.
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