static void
mono_invoke_protected_memory_method (MonoArrayHandle data, MonoObjectHandle scope,
const char *method_name, MonoMethod **method, MonoError *error)
{
if (!*method) {
if (system_security_assembly == NULL) {
system_security_assembly = mono_image_loaded_internal ("System.Security", FALSE);
if (!system_security_assembly) {
MonoAssemblyOpenRequest req;
mono_assembly_request_prepare (&req.request, sizeof (req), MONO_ASMCTX_DEFAULT);
MonoAssembly *sa = mono_assembly_request_open ("System.Security.dll", &req, NULL);
g_assert (sa);
system_security_assembly = mono_assembly_get_image_internal (sa);
}
}
MonoClass *klass = mono_class_load_from_name (system_security_assembly,
"System.Security.Cryptography", "ProtectedMemory");
*method = mono_class_get_method_from_name_checked (klass, method_name, 2, 0, error);
mono_error_assert_ok (error);
g_assert (*method);
}
void *params [ ] = {
MONO_HANDLE_RAW (data),
MONO_HANDLE_RAW (scope) // MemoryProtectionScope.SameProcess
};
mono_runtime_invoke_handle_void (*method, NULL_HANDLE, params, error);
}
MonoExceptionHandle
mono_get_exception_runtime_wrapped_handle (MonoObjectHandle wrapped_exception, MonoError *error)
{
HANDLE_FUNCTION_ENTER ();
MonoClass *klass;
MonoMethod *method;
klass = mono_class_load_from_name (mono_get_corlib (), "System.Runtime.CompilerServices", "RuntimeWrappedException");
MonoObjectHandle o = mono_object_new_handle (mono_domain_get (), klass, error);
mono_error_assert_ok (error);
g_assert (!MONO_HANDLE_IS_NULL (o));
method = mono_class_get_method_from_name_checked (klass, ".ctor", 1, 0, error);
mono_error_assert_ok (error);
g_assert (method);
gpointer args [ ] = { MONO_HANDLE_RAW (wrapped_exception) };
mono_runtime_invoke_handle (method, o, args, error);
goto_if_nok (error, return_null);
goto exit;
return_null:
o = mono_new_null ();
exit:
HANDLE_FUNCTION_RETURN_REF (MonoException, MONO_HANDLE_CAST (MonoException, o));
}
/*
* Context propagation is required when:
* (a) the security manager is active (1.x and later)
* (b) other contexts needs to be propagated (2.x and later)
*
* returns NULL if no context propagation is required, else the returns the
* MonoMethod to call to Capture the ExecutionContext.
*/
MonoMethod*
mono_get_context_capture_method (void)
{
static MonoMethod *method = NULL;
if (mono_image_get_assembly (mono_defaults.corlib)->aname.major < 2)
return NULL;
/* older corlib revisions won't have the class (nor the method) */
MonoClass *execution_context = mono_class_try_get_execution_context_class ();
if (execution_context && !method) {
ERROR_DECL (error);
mono_class_init_internal (execution_context);
method = mono_class_get_method_from_name_checked (execution_context, "Capture", 0, 0, error);
mono_error_assert_ok (error);
}
return method;
}
/*
* actually, we might want to queue the finalize requests in a separate thread,
* but we need to be careful about the execution domain of the thread...
*/
void
mono_gc_run_finalize (void *obj, void *data)
{
ERROR_DECL (error);
MonoObject *exc = NULL;
MonoObject *o;
#ifndef HAVE_SGEN_GC
MonoObject *o2;
#endif
MonoMethod* finalizer = NULL;
MonoDomain *caller_domain = mono_domain_get ();
MonoDomain *domain;
// This function is called from the innards of the GC, so our best alternative for now is to do polling here
mono_threads_safepoint ();
o = (MonoObject*)((char*)obj + GPOINTER_TO_UINT (data));
const char *o_ns = m_class_get_name_space (mono_object_class (o));
const char *o_name = m_class_get_name (mono_object_class (o));
if (mono_do_not_finalize) {
if (!mono_do_not_finalize_class_names)
return;
size_t namespace_len = strlen (o_ns);
for (int i = 0; mono_do_not_finalize_class_names [i]; ++i) {
const char *name = mono_do_not_finalize_class_names [i];
if (strncmp (name, o_ns, namespace_len))
break;
if (name [namespace_len] != '.')
break;
if (strcmp (name + namespace_len + 1, o_name))
break;
return;
}
}
if (mono_log_finalizers)
g_log ("mono-gc-finalizers", G_LOG_LEVEL_DEBUG, "<%s at %p> Starting finalizer checks.", o_name, o);
if (suspend_finalizers)
return;
domain = o->vtable->domain;
#ifndef HAVE_SGEN_GC
mono_domain_finalizers_lock (domain);
o2 = (MonoObject *)g_hash_table_lookup (domain->finalizable_objects_hash, o);
mono_domain_finalizers_unlock (domain);
if (!o2)
/* Already finalized somehow */
return;
#endif
/* make sure the finalizer is not called again if the object is resurrected */
object_register_finalizer ((MonoObject *)obj, NULL);
if (mono_log_finalizers)
g_log ("mono-gc-finalizers", G_LOG_LEVEL_MESSAGE, "<%s at %p> Registered finalizer as processed.", o_name, o);
if (o->vtable->klass == mono_defaults.internal_thread_class) {
MonoInternalThread *t = (MonoInternalThread*)o;
if (mono_gc_is_finalizer_internal_thread (t))
/* Avoid finalizing ourselves */
return;
}
if (m_class_get_image (mono_object_class (o)) == mono_defaults.corlib && !strcmp (o_name, "DynamicMethod") && finalizing_root_domain) {
/*
* These can't be finalized during unloading/shutdown, since that would
* free the native code which can still be referenced by other
* finalizers.
* FIXME: This is not perfect, objects dying at the same time as
* dynamic methods can still reference them even when !shutdown.
*/
return;
}
if (mono_runtime_get_no_exec ())
return;
/* speedup later... and use a timeout */
/* g_print ("Finalize run on %p %s.%s\n", o, mono_object_class (o)->name_space, mono_object_class (o)->name); */
/* Use _internal here, since this thread can enter a doomed appdomain */
mono_domain_set_internal (mono_object_domain (o));
/* delegates that have a native function pointer allocated are
* registered for finalization, but they don't have a Finalize
* method, because in most cases it's not needed and it's just a waste.
*/
if (m_class_is_delegate (mono_object_class (o))) {
MonoDelegate* del = (MonoDelegate*)o;
if (del->delegate_trampoline)
mono_delegate_free_ftnptr ((MonoDelegate*)o);
mono_domain_set_internal (caller_domain);
return;
}
finalizer = mono_class_get_finalizer (o->vtable->klass);
/* If object has a CCW but has no finalizer, it was only
* registered for finalization in order to free the CCW.
* Else it needs the regular finalizer run.
* FIXME: what to do about ressurection and suppression
* of finalizer on object with CCW.
*/
if (mono_marshal_free_ccw (o) && !finalizer) {
mono_domain_set_internal (caller_domain);
return;
}
/*
* To avoid the locking plus the other overhead of mono_runtime_invoke_checked (),
* create and precompile a wrapper which calls the finalize method using
* a CALLVIRT.
*/
if (mono_log_finalizers)
g_log ("mono-gc-finalizers", G_LOG_LEVEL_MESSAGE, "<%s at %p> Compiling finalizer.", o_name, o);
#ifndef HOST_WASM
if (!domain->finalize_runtime_invoke) {
MonoMethod *finalize_method = mono_class_get_method_from_name_checked (mono_defaults.object_class, "Finalize", 0, 0, error);
mono_error_assert_ok (error);
MonoMethod *invoke = mono_marshal_get_runtime_invoke (finalize_method, TRUE);
domain->finalize_runtime_invoke = mono_compile_method_checked (invoke, error);
mono_error_assert_ok (error); /* expect this not to fail */
}
RuntimeInvokeFunction runtime_invoke = (RuntimeInvokeFunction)domain->finalize_runtime_invoke;
#endif
mono_runtime_class_init_full (o->vtable, error);
goto_if_nok (error, unhandled_error);
if (G_UNLIKELY (MONO_GC_FINALIZE_INVOKE_ENABLED ())) {
MONO_GC_FINALIZE_INVOKE ((unsigned long)o, mono_object_get_size_internal (o),
o_ns, o_name);
}
if (mono_log_finalizers)
g_log ("mono-gc-finalizers", G_LOG_LEVEL_MESSAGE, "<%s at %p> Calling finalizer.", o_name, o);
MONO_PROFILER_RAISE (gc_finalizing_object, (o));
#ifdef HOST_WASM
if (finalizer) { // null finalizers work fine when using the vcall invoke as Object has an empty one
gpointer params [1];
params [0] = NULL;
mono_runtime_try_invoke (finalizer, o, params, &exc, error);
}
#else
runtime_invoke (o, NULL, &exc, NULL);
#endif
MONO_PROFILER_RAISE (gc_finalized_object, (o));
if (mono_log_finalizers)
g_log ("mono-gc-finalizers", G_LOG_LEVEL_MESSAGE, "<%s at %p> Returned from finalizer.", o_name, o);
unhandled_error:
if (!is_ok (error))
exc = (MonoObject*)mono_error_convert_to_exception (error);
if (exc)
mono_thread_internal_unhandled_exception (exc);
mono_domain_set_internal (caller_domain);
}
