1 /*
   2  * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #ifndef SHARE_VM_AOT_AOTLOADER_HPP
  25 #define SHARE_VM_AOT_AOTLOADER_HPP
  26 
  27 #include "runtime/globals_extension.hpp"
  28 #include "runtime/handles.hpp"
  29 
  30 class AOTCodeHeap;
  31 class AOTLib;
  32 class CodeBlob;
  33 template <class T> class GrowableArray;
  34 class InstanceKlass;
  35 class JavaThread;
  36 class Metadata;
  37 class OopClosure;
  38 
  39 class AOTLoader {
  40 private:
  41 #if INCLUDE_AOT
  42   static GrowableArray<AOTCodeHeap*>* _heaps;
  43   static GrowableArray<AOTLib*>* _libraries;
  44 #endif
  45   static void load_library(const char* name, bool exit_on_error);
  46 
  47 public:
  48 #if INCLUDE_AOT
  49   static GrowableArray<AOTCodeHeap*>* heaps();
  50   static GrowableArray<AOTLib*>* libraries();
  51   static int heaps_count();
  52   static int libraries_count();
  53   static void add_heap(AOTCodeHeap *heap);
  54   static void add_library(AOTLib *lib);
  55 #endif
  56   static void initialize() NOT_AOT({ FLAG_SET_ERGO(bool, UseAOT, false); });
  57 
  58   static void universe_init() NOT_AOT_RETURN;
  59   static void set_narrow_klass_shift() NOT_AOT_RETURN;
  60   static bool contains(address p) NOT_AOT({ return false; });
  61   static void load_for_klass(InstanceKlass* ik, Thread* thread) NOT_AOT_RETURN;
  62   static bool find_klass(InstanceKlass* ik) NOT_AOT({ return false; });
  63   static uint64_t get_saved_fingerprint(InstanceKlass* ik) NOT_AOT({ return 0; });
  64   static void oops_do(OopClosure* f) NOT_AOT_RETURN;
  65   static void metadata_do(void f(Metadata*)) NOT_AOT_RETURN;
  66 
  67   NOT_PRODUCT( static void print_statistics() NOT_AOT_RETURN; )
  68 
  69 #ifdef HOTSWAP
  70   // Flushing and deoptimization in case of evolution
  71   static void flush_evol_dependents_on(InstanceKlass* dependee) NOT_AOT_RETURN;
  72 #endif // HOTSWAP
  73 
  74 };
  75 
  76 #endif // SHARE_VM_AOT_AOTLOADER_HPP