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Java example source code file (c1_Runtime1.hpp)

This example Java source code file (c1_Runtime1.hpp) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

basicobjectlock, codeblob, declare_last_stub_id, heapword, javathread, klass, oopmapset, product, register, runtime1, runtime1_stubs, share_vm_c1_c1_runtime1_hpp, stubassembler, stubid

The c1_Runtime1.hpp Java example source code

/*
 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_C1_C1_RUNTIME1_HPP
#define SHARE_VM_C1_C1_RUNTIME1_HPP

#include "c1/c1_FrameMap.hpp"
#include "code/stubs.hpp"
#include "interpreter/interpreter.hpp"
#include "memory/allocation.hpp"
#include "runtime/deoptimization.hpp"

class StubAssembler;

// The Runtime1 holds all assembly stubs and VM
// runtime routines needed by code code generated
// by the Compiler1.

#define RUNTIME1_STUBS(stub, last_entry) \
  stub(dtrace_object_alloc)          \
  stub(unwind_exception)             \
  stub(forward_exception)            \
  stub(throw_range_check_failed)       /* throws ArrayIndexOutOfBoundsException */ \
  stub(throw_index_exception)          /* throws IndexOutOfBoundsException */ \
  stub(throw_div0_exception)         \
  stub(throw_null_pointer_exception) \
  stub(register_finalizer)           \
  stub(new_instance)                 \
  stub(fast_new_instance)            \
  stub(fast_new_instance_init_check) \
  stub(new_type_array)               \
  stub(new_object_array)             \
  stub(new_multi_array)              \
  stub(handle_exception_nofpu)         /* optimized version that does not preserve fpu registers */ \
  stub(handle_exception)             \
  stub(handle_exception_from_callee) \
  stub(throw_array_store_exception)  \
  stub(throw_class_cast_exception)   \
  stub(throw_incompatible_class_change_error)   \
  stub(slow_subtype_check)           \
  stub(monitorenter)                 \
  stub(monitorenter_nofpu)             /* optimized version that does not preserve fpu registers */ \
  stub(monitorexit)                  \
  stub(monitorexit_nofpu)              /* optimized version that does not preserve fpu registers */ \
  stub(deoptimize)                   \
  stub(access_field_patching)        \
  stub(load_klass_patching)          \
  stub(load_mirror_patching)         \
  stub(load_appendix_patching)       \
  stub(g1_pre_barrier_slow)          \
  stub(g1_post_barrier_slow)         \
  stub(fpu2long_stub)                \
  stub(counter_overflow)             \
  stub(predicate_failed_trap)        \
  last_entry(number_of_ids)

#define DECLARE_STUB_ID(x)       x ## _id ,
#define DECLARE_LAST_STUB_ID(x)  x
#define STUB_NAME(x)             #x " Runtime1 stub",
#define LAST_STUB_NAME(x)        #x " Runtime1 stub"

class Runtime1: public AllStatic {
  friend class VMStructs;
  friend class ArrayCopyStub;

 public:
  enum StubID {
    RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID)
  };

  // statistics
#ifndef PRODUCT
  static int _resolve_invoke_cnt;
  static int _handle_wrong_method_cnt;
  static int _ic_miss_cnt;
  static int _generic_arraycopy_cnt;
  static int _primitive_arraycopy_cnt;
  static int _oop_arraycopy_cnt;
  static int _generic_arraycopystub_cnt;
  static int _arraycopy_slowcase_cnt;
  static int _arraycopy_checkcast_cnt;
  static int _arraycopy_checkcast_attempt_cnt;
  static int _new_type_array_slowcase_cnt;
  static int _new_object_array_slowcase_cnt;
  static int _new_instance_slowcase_cnt;
  static int _new_multi_array_slowcase_cnt;
  static int _monitorenter_slowcase_cnt;
  static int _monitorexit_slowcase_cnt;
  static int _patch_code_slowcase_cnt;
  static int _throw_range_check_exception_count;
  static int _throw_index_exception_count;
  static int _throw_div0_exception_count;
  static int _throw_null_pointer_exception_count;
  static int _throw_class_cast_exception_count;
  static int _throw_incompatible_class_change_error_count;
  static int _throw_array_store_exception_count;
  static int _throw_count;
#endif

 private:
  static CodeBlob* _blobs[number_of_ids];
  static const char* _blob_names[];

  // stub generation
  static void       generate_blob_for(BufferBlob* blob, StubID id);
  static OopMapSet* generate_code_for(StubID id, StubAssembler* sasm);
  static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
  static OopMapSet* generate_handle_exception(StubID id, StubAssembler* sasm);
  static void       generate_unwind_exception(StubAssembler *sasm);
  static OopMapSet* generate_patching(StubAssembler* sasm, address target);

  static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
                                       Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);

  // runtime entry points
  static void new_instance    (JavaThread* thread, Klass* klass);
  static void new_type_array  (JavaThread* thread, Klass* klass, jint length);
  static void new_object_array(JavaThread* thread, Klass* klass, jint length);
  static void new_multi_array (JavaThread* thread, Klass* klass, int rank, jint* dims);

  static address counter_overflow(JavaThread* thread, int bci, Method* method);

  static void unimplemented_entry   (JavaThread* thread, StubID id);

  static address exception_handler_for_pc(JavaThread* thread);

  static void throw_range_check_exception(JavaThread* thread, int index);
  static void throw_index_exception(JavaThread* thread, int index);
  static void throw_div0_exception(JavaThread* thread);
  static void throw_null_pointer_exception(JavaThread* thread);
  static void throw_class_cast_exception(JavaThread* thread, oopDesc* object);
  static void throw_incompatible_class_change_error(JavaThread* thread);
  static void throw_array_store_exception(JavaThread* thread, oopDesc* object);

  static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock);
  static void monitorexit (JavaThread* thread, BasicObjectLock* lock);

  static void deoptimize(JavaThread* thread);

  static int access_field_patching(JavaThread* thread);
  static int move_klass_patching(JavaThread* thread);
  static int move_mirror_patching(JavaThread* thread);
  static int move_appendix_patching(JavaThread* thread);

  static void patch_code(JavaThread* thread, StubID stub_id);

 public:
  // initialization
  static void initialize(BufferBlob* blob);
  static void initialize_pd();

  // stubs
  static CodeBlob* blob_for (StubID id);
  static address   entry_for(StubID id)          { return blob_for(id)->code_begin(); }
  static const char* name_for (StubID id);
  static const char* name_for_address(address entry);

  // platform might add runtime names.
  static const char* pd_name_for_address(address entry);

  // method tracing
  static void trace_block_entry(jint block_id);

#ifndef PRODUCT
  static address throw_count_address()               { return (address)&_throw_count;             }
  static address arraycopy_count_address(BasicType type);
#endif

  // directly accessible leaf routine
  static int  arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length);
  static void primitive_arraycopy(HeapWord* src, HeapWord* dst, int length);
  static void oop_arraycopy(HeapWord* src, HeapWord* dst, int length);
  static int  is_instance_of(oopDesc* mirror, oopDesc* obj);

  static void predicate_failed_trap(JavaThread* thread);

  static void print_statistics()                 PRODUCT_RETURN;
};

#endif // SHARE_VM_C1_C1_RUNTIME1_HPP

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