Check stacks for unmodifiable frames
We keep a generate a list of classes that have unmodifiable frames
during the zygote fork and check for them in IsModifiableClass.
Test: Start apps on aosp_marlin-userdebug phone with libartd.so
Change-Id: I6bbaa20d307c3803a5808fb4108638365895e802
diff --git a/runtime/non_debuggable_classes.cc b/runtime/non_debuggable_classes.cc
new file mode 100644
index 0000000..db121a9
--- /dev/null
+++ b/runtime/non_debuggable_classes.cc
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "non_debuggable_classes.h"
+
+#include "base/logging.h"
+#include "jni_internal.h"
+#include "mirror/class-inl.h"
+#include "obj_ptr-inl.h"
+#include "ScopedLocalRef.h"
+#include "thread-inl.h"
+
+namespace art {
+
+std::vector<jclass> NonDebuggableClasses::non_debuggable_classes;
+
+void NonDebuggableClasses::AddNonDebuggableClass(ObjPtr<mirror::Class> klass) {
+ Thread* self = Thread::Current();
+ JNIEnvExt* env = self->GetJniEnv();
+ for (jclass c : non_debuggable_classes) {
+ if (self->DecodeJObject(c)->AsClass() == klass.Ptr()) {
+ return;
+ }
+ }
+ ScopedLocalRef<jclass> lr(env, env->AddLocalReference<jclass>(klass));
+ non_debuggable_classes.push_back(reinterpret_cast<jclass>(env->NewGlobalRef(lr.get())));
+}
+
+} // namespace art