[ART] Move to system/core native bridge library

Some cleanups on the way:
- move NativeBridgeRuntimeCallbacks from a global to a field
- rename native_bridge_library_string to the more suggestive
navtive_bridge_library_path
- clean up imports

Bug: 16884833
Change-Id: I73aab8e212860ba5aee9444d801806d3da326a41

1 files changed, 94 insertions, 0 deletions

diff --git a/runtime/native_bridge_art_interface.cc b/runtime/native_bridge_art_interface.cc
new file mode 100644
index 0000000000..453c92f495
--- /dev/null
+++ b/runtime/native_bridge_art_interface.cc
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2014 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 "native_bridge_art_interface.h"
+
+#include "mirror/art_method-inl.h"
+#include "mirror/class-inl.h"
+#include "scoped_thread_state_change.h"
+
+namespace art {
+
+const char* GetMethodShorty(JNIEnv* env, jmethodID mid) {
+  ScopedObjectAccess soa(env);
+  StackHandleScope<1> scope(soa.Self());
+  mirror::ArtMethod* m = soa.DecodeMethod(mid);
+  MethodHelper mh(scope.NewHandle(m));
+  return mh.GetShorty();
+}
+
+uint32_t GetNativeMethodCount(JNIEnv* env, jclass clazz) {
+  if (clazz == nullptr)
+    return 0;
+
+  ScopedObjectAccess soa(env);
+  mirror::Class* c = soa.Decode<mirror::Class*>(clazz);
+
+  uint32_t native_method_count = 0;
+  for (uint32_t i = 0; i < c->NumDirectMethods(); ++i) {
+    mirror::ArtMethod* m = c->GetDirectMethod(i);
+    if (m->IsNative()) {
+      native_method_count++;
+    }
+  }
+  for (uint32_t i = 0; i < c->NumVirtualMethods(); ++i) {
+    mirror::ArtMethod* m = c->GetVirtualMethod(i);
+    if (m->IsNative()) {
+      native_method_count++;
+    }
+  }
+  return native_method_count;
+}
+
+uint32_t GetNativeMethods(JNIEnv* env, jclass clazz, JNINativeMethod* methods,
+                          uint32_t method_count) {
+  if ((clazz == nullptr) || (methods == nullptr)) {
+    return 0;
+  }
+  ScopedObjectAccess soa(env);
+  mirror::Class* c = soa.Decode<mirror::Class*>(clazz);
+
+  uint32_t count = 0;
+  for (uint32_t i = 0; i < c->NumDirectMethods(); ++i) {
+    mirror::ArtMethod* m = c->GetDirectMethod(i);
+    if (m->IsNative()) {
+      if (count < method_count) {
+        methods[count].name = m->GetName();
+        methods[count].signature = m->GetShorty();
+        methods[count].fnPtr = const_cast<void*>(m->GetNativeMethod());
+        count++;
+      } else {
+        LOG(WARNING) << "Output native method array too small. Skipping " << PrettyMethod(m);
+      }
+    }
+  }
+  for (uint32_t i = 0; i < c->NumVirtualMethods(); ++i) {
+    mirror::ArtMethod* m = c->GetVirtualMethod(i);
+    if (m->IsNative()) {
+      if (count < method_count) {
+        methods[count].name = m->GetName();
+        methods[count].signature = m->GetShorty();
+        methods[count].fnPtr = const_cast<void*>(m->GetNativeMethod());
+        count++;
+      } else {
+        LOG(WARNING) << "Output native method array too small. Skipping " << PrettyMethod(m);
+      }
+    }
+  }
+  return count;
+}
+
+};  // namespace art