Move mapping table and vmap table offsets to OatMethodHeader.

This change has a libcore/ companion CL
  "Remove ArtMethod's quick fields mapping table and vmap table."
  https://android-review.googlesource.com/91254

Bug: 11767815
Change-Id: I46ce2067e1ecd915da3890606498e31ffc332813

1 files changed, 60 insertions, 0 deletions

diff --git a/runtime/oat_file-inl.h b/runtime/oat_file-inl.h
new file mode 100644
index 0000000..00ae797
--- /dev/null
+++ b/runtime/oat_file-inl.h
@@ -0,0 +1,60 @@
+/*
+ * 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.
+ */
+
+#ifndef ART_RUNTIME_OAT_FILE_INL_H_
+#define ART_RUNTIME_OAT_FILE_INL_H_
+
+#include "oat_file.h"
+
+namespace art {
+
+inline uint32_t OatFile::OatMethod::GetMappingTableOffset() const {
+  const uint8_t* mapping_table = GetMappingTable();
+  return static_cast<uint32_t>(mapping_table != nullptr ? mapping_table - begin_ : 0u);
+}
+
+inline uint32_t OatFile::OatMethod::GetVmapTableOffset() const {
+  const uint8_t* vmap_table = GetVmapTable();
+  return static_cast<uint32_t>(vmap_table != nullptr ? vmap_table - begin_ : 0u);
+}
+
+inline const uint8_t* OatFile::OatMethod::GetMappingTable() const {
+  const void* code = mirror::ArtMethod::EntryPointToCodePointer(GetQuickCode());
+  if (code == nullptr) {
+    return nullptr;
+  }
+  uint32_t offset = reinterpret_cast<const OatMethodHeader*>(code)[-1].mapping_table_offset_;
+  if (UNLIKELY(offset == 0u)) {
+    return nullptr;
+  }
+  return reinterpret_cast<const uint8_t*>(code) - offset;
+}
+
+inline const uint8_t* OatFile::OatMethod::GetVmapTable() const {
+  const void* code = mirror::ArtMethod::EntryPointToCodePointer(GetQuickCode());
+  if (code == nullptr) {
+    return nullptr;
+  }
+  uint32_t offset = reinterpret_cast<const OatMethodHeader*>(code)[-1].vmap_table_offset_;
+  if (UNLIKELY(offset == 0u)) {
+    return nullptr;
+  }
+  return reinterpret_cast<const uint8_t*>(code) - offset;
+}
+
+}  // namespace art
+
+#endif  // ART_RUNTIME_OAT_FILE_INL_H_