[mono][wasm] Pin thrown exceptions during EH. (#69916)

vargaz · web-flow · commit abca8a1d2473 · 2022-05-27T23:50:14.000-04:00
Fixes #63749.
diff --git a/src/mono/mono/mini/mini-exceptions.c b/src/mono/mono/mini/mini-exceptions.c
@@ -3504,7 +3504,7 @@ mini_llvmonly_throw_corlib_exception (guint32 ex_token_index)
 	MonoException *ex;
 
 	ex = mono_exception_from_token (m_class_get_image (mono_defaults.exception_class), ex_token);
-	jit_tls->thrown_exc = mono_gchandle_new_internal ((MonoObject*)ex, FALSE);
+	jit_tls->thrown_exc = mono_gchandle_new_internal ((MonoObject*)ex, TRUE);
 
 	mini_llvmonly_throw_exception ((MonoObject*)ex);
 }

Original file line number	Diff line number	Diff line change
`@@ -3504,7 +3504,7 @@ mini_llvmonly_throw_corlib_exception (guint32 ex_token_index)`
`3504`	`3504`	`MonoException *ex;`
`3505`	`3505`
`3506`	`3506`	`ex = mono_exception_from_token (m_class_get_image (mono_defaults.exception_class), ex_token);`
`3507`		`- jit_tls->thrown_exc = mono_gchandle_new_internal ((MonoObject*)ex, FALSE);`
	`3507`	`+ jit_tls->thrown_exc = mono_gchandle_new_internal ((MonoObject*)ex, TRUE);`
`3508`	`3508`
`3509`	`3509`	`mini_llvmonly_throw_exception ((MonoObject*)ex);`
`3510`	`3510`	`}`