ART: Add ClassLoadCallback

Add callback for class-load and class-prepare events. Move Dbg
over. Add tests.

Bug: 31684920
Test: m test-art-host-gtest-runtime_callbacks_test
Test: art/tools/run-jdwp-tests.sh --mode=host
Change-Id: I871f6b3c54448fd6ece8d9a7571b2042be50d525

1 files changed, 24 insertions, 0 deletions

diff --git a/runtime/runtime_callbacks.cc b/runtime/runtime_callbacks.cc
index a523ddfa44..ee9eddab96 100644
--- a/runtime/runtime_callbacks.cc
+++ b/runtime/runtime_callbacks.cc
@@ -18,6 +18,7 @@
 
 #include <algorithm>
 
+#include "class_linker.h"
 #include "thread.h"
 
 namespace art {
@@ -45,4 +46,27 @@ void RuntimeCallbacks::ThreadDeath(Thread* self) {
   }
 }
 
+void RuntimeCallbacks::AddClassLoadCallback(ClassLoadCallback* cb) {
+  class_callbacks_.push_back(cb);
+}
+
+void RuntimeCallbacks::RemoveClassLoadCallback(ClassLoadCallback* cb) {
+  auto it = std::find(class_callbacks_.begin(), class_callbacks_.end(), cb);
+  if (it != class_callbacks_.end()) {
+    class_callbacks_.erase(it);
+  }
+}
+
+void RuntimeCallbacks::ClassLoad(Handle<mirror::Class> klass) {
+  for (ClassLoadCallback* cb : class_callbacks_) {
+    cb->ClassLoad(klass);
+  }
+}
+
+void RuntimeCallbacks::ClassPrepare(Handle<mirror::Class> temp_klass, Handle<mirror::Class> klass) {
+  for (ClassLoadCallback* cb : class_callbacks_) {
+    cb->ClassPrepare(temp_klass, klass);
+  }
+}
+
 }  // namespace art