Reland "Write classes in runtime-generated app image."

This reverts commit 24b3d648ff6c2c200003f55ac63fc910d7bfd40f.

Bug: 260557058

Reason for revert:
- Encode class loader context in image, and check it at load time.
- Set nterp entrypoint to methods that can.

Test: test.py
Test: atest com.android.bluetooth.opp.BluetoothOppObexServerSessionTest#onPut_withUnsupportedMimeTypeInHeader_returnsHttpBadRequest

Change-Id: Ibf4a8604c4a226d1acc021103668e211446bb53c

1 files changed, 10 insertions, 0 deletions

diff --git a/runtime/class_table-inl.h b/runtime/class_table-inl.h
index 67eeb553a4..ecc8a0a620 100644
--- a/runtime/class_table-inl.h
+++ b/runtime/class_table-inl.h
@@ -213,6 +213,11 @@ inline ClassTable::TableSlot::TableSlot(ObjPtr<mirror::Class> klass, uint32_t de
   DCHECK_EQ(descriptor_hash, klass->DescriptorHash());
 }
 
+inline ClassTable::TableSlot::TableSlot(uint32_t ptr, uint32_t descriptor_hash)
+    : data_(ptr | MaskHash(descriptor_hash)) {
+  DCHECK_ALIGNED(ptr, kObjectAlignment);
+}
+
 template <typename Filter>
 inline void ClassTable::RemoveStrongRoots(const Filter& filter) {
   WriterMutexLock mu(Thread::Current(), lock_);
@@ -227,6 +232,11 @@ inline ObjPtr<mirror::Class> ClassTable::LookupByDescriptor(ObjPtr<mirror::Class
   return Lookup(descriptor, hash);
 }
 
+inline size_t ClassTable::Size() const {
+  ReaderMutexLock mu(Thread::Current(), lock_);
+  return classes_.size();
+}
+
 }  // namespace art
 
 #endif  // ART_RUNTIME_CLASS_TABLE_INL_H_