src/hotspot/share/runtime/sharedRuntime.hpp
author stefank
Fri, 04 May 2018 11:41:35 +0200
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parent 49056 91ada5977172
child 50375 bfbe7d8369bb
permissions -rw-r--r--
8200729: Conditional compilation of GCs Reviewed-by: ehelin, coleenp, kvn, ihse
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/*
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 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_RUNTIME_SHAREDRUNTIME_HPP
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#define SHARE_VM_RUNTIME_SHAREDRUNTIME_HPP
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#include "interpreter/bytecodeHistogram.hpp"
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#include "interpreter/bytecodeTracer.hpp"
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#include "interpreter/linkResolver.hpp"
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#include "memory/allocation.hpp"
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#include "memory/resourceArea.hpp"
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#include "utilities/hashtable.hpp"
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#include "utilities/macros.hpp"
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class AdapterHandlerEntry;
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class AdapterHandlerTable;
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class AdapterFingerPrint;
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class vframeStream;
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// Runtime is the base class for various runtime interfaces
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// (InterpreterRuntime, CompilerRuntime, etc.). It provides
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// shared functionality such as exception forwarding (C++ to
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// Java exceptions), locking/unlocking mechanisms, statistical
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// information, etc.
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class SharedRuntime: AllStatic {
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  friend class VMStructs;
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  static methodHandle resolve_sub_helper(JavaThread *thread,
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                                         bool is_virtual,
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                                         bool is_optimized, TRAPS);
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  // Shared stub locations
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  static RuntimeStub*        _wrong_method_blob;
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  static RuntimeStub*        _wrong_method_abstract_blob;
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  static RuntimeStub*        _ic_miss_blob;
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  static RuntimeStub*        _resolve_opt_virtual_call_blob;
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  static RuntimeStub*        _resolve_virtual_call_blob;
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  static RuntimeStub*        _resolve_static_call_blob;
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  static address             _resolve_static_call_entry;
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  static DeoptimizationBlob* _deopt_blob;
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  static SafepointBlob*      _polling_page_vectors_safepoint_handler_blob;
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  static SafepointBlob*      _polling_page_safepoint_handler_blob;
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  static SafepointBlob*      _polling_page_return_handler_blob;
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#ifdef COMPILER2
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  static UncommonTrapBlob*   _uncommon_trap_blob;
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#endif // COMPILER2
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#ifndef PRODUCT
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  // Counters
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  static int     _nof_megamorphic_calls;         // total # of megamorphic calls (through vtable)
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#endif // !PRODUCT
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  enum { POLL_AT_RETURN,  POLL_AT_LOOP, POLL_AT_VECTOR_LOOP };
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  static SafepointBlob* generate_handler_blob(address call_ptr, int poll_type);
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  static RuntimeStub*   generate_resolve_blob(address destination, const char* name);
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  static void generate_stubs(void);
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  // max bytes for each dtrace string parameter
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  enum { max_dtrace_string_size = 256 };
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  // The following arithmetic routines are used on platforms that do
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  // not have machine instructions to implement their functionality.
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  // Do not remove these.
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  // long arithmetics
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  static jlong   lmul(jlong y, jlong x);
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  static jlong   ldiv(jlong y, jlong x);
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  static jlong   lrem(jlong y, jlong x);
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  // float and double remainder
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  static jfloat  frem(jfloat  x, jfloat  y);
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  static jdouble drem(jdouble x, jdouble y);
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#ifdef _WIN64
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  // Workaround for fmod issue in the Windows x64 CRT
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  static double fmod_winx64(double x, double y);
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#endif
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#ifdef __SOFTFP__
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  static jfloat  fadd(jfloat x, jfloat y);
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  static jfloat  fsub(jfloat x, jfloat y);
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  static jfloat  fmul(jfloat x, jfloat y);
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  static jfloat  fdiv(jfloat x, jfloat y);
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  static jdouble dadd(jdouble x, jdouble y);
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  static jdouble dsub(jdouble x, jdouble y);
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  static jdouble dmul(jdouble x, jdouble y);
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  static jdouble ddiv(jdouble x, jdouble y);
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#endif // __SOFTFP__
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  // float conversion (needs to set appropriate rounding mode)
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  static jint    f2i (jfloat  x);
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  static jlong   f2l (jfloat  x);
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  static jint    d2i (jdouble x);
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  static jlong   d2l (jdouble x);
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  static jfloat  d2f (jdouble x);
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  static jfloat  l2f (jlong   x);
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  static jdouble l2d (jlong   x);
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#ifdef __SOFTFP__
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  static jfloat  i2f (jint    x);
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  static jdouble i2d (jint    x);
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  static jdouble f2d (jfloat  x);
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#endif // __SOFTFP__
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  // double trigonometrics and transcendentals
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  static jdouble dsin(jdouble x);
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  static jdouble dcos(jdouble x);
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  static jdouble dtan(jdouble x);
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  static jdouble dlog(jdouble x);
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  static jdouble dlog10(jdouble x);
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  static jdouble dexp(jdouble x);
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  static jdouble dpow(jdouble x, jdouble y);
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#if defined(__SOFTFP__) || defined(E500V2)
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  static double dabs(double f);
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#endif
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#if defined(__SOFTFP__) || defined(PPC)
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  static double dsqrt(double f);
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#endif
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  // Montgomery multiplication
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  static void montgomery_multiply(jint *a_ints, jint *b_ints, jint *n_ints,
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                                  jint len, jlong inv, jint *m_ints);
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  static void montgomery_square(jint *a_ints, jint *n_ints,
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                                jint len, jlong inv, jint *m_ints);
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#ifdef __SOFTFP__
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  // C++ compiler generates soft float instructions as well as passing
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  // float and double in registers.
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  static int  fcmpl(float x, float y);
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  static int  fcmpg(float x, float y);
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  static int  dcmpl(double x, double y);
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  static int  dcmpg(double x, double y);
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  static int unordered_fcmplt(float x, float y);
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  static int unordered_dcmplt(double x, double y);
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  static int unordered_fcmple(float x, float y);
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  static int unordered_dcmple(double x, double y);
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  static int unordered_fcmpge(float x, float y);
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  static int unordered_dcmpge(double x, double y);
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  static int unordered_fcmpgt(float x, float y);
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  static int unordered_dcmpgt(double x, double y);
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  static float  fneg(float f);
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  static double dneg(double f);
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#endif
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  // exception handling across interpreter/compiler boundaries
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  static address raw_exception_handler_for_return_address(JavaThread* thread, address return_address);
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  static address exception_handler_for_return_address(JavaThread* thread, address return_address);
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#if INCLUDE_G1GC
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  // G1 write barriers
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  static void g1_wb_pre(oopDesc* orig, JavaThread *thread);
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  static void g1_wb_post(void* card_addr, JavaThread* thread);
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#endif // INCLUDE_G1GC
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  // exception handling and implicit exceptions
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  static address compute_compiled_exc_handler(CompiledMethod* nm, address ret_pc, Handle& exception,
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                                              bool force_unwind, bool top_frame_only, bool& recursive_exception_occurred);
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  enum ImplicitExceptionKind {
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    IMPLICIT_NULL,
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    IMPLICIT_DIVIDE_BY_ZERO,
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    STACK_OVERFLOW
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  };
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  static void    throw_AbstractMethodError(JavaThread* thread);
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  static void    throw_IncompatibleClassChangeError(JavaThread* thread);
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  static void    throw_ArithmeticException(JavaThread* thread);
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  static void    throw_NullPointerException(JavaThread* thread);
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  static void    throw_NullPointerException_at_call(JavaThread* thread);
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  static void    throw_StackOverflowError(JavaThread* thread);
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  static void    throw_delayed_StackOverflowError(JavaThread* thread);
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  static void    throw_StackOverflowError_common(JavaThread* thread, bool delayed);
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  static address continuation_for_implicit_exception(JavaThread* thread,
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                                                     address faulting_pc,
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                                                     ImplicitExceptionKind exception_kind);
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#if INCLUDE_JVMCI
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  static address deoptimize_for_implicit_exception(JavaThread* thread, address pc, CompiledMethod* nm, int deopt_reason);
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#endif
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  // Post-slow-path-allocation, pre-initializing-stores step for
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  // implementing e.g. ReduceInitialCardMarks
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  static void on_slowpath_allocation_exit(JavaThread* thread);
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  static void enable_stack_reserved_zone(JavaThread* thread);
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  static frame look_for_reserved_stack_annotated_method(JavaThread* thread, frame fr);
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  // Shared stub locations
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  static address get_poll_stub(address pc);
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  static address get_ic_miss_stub() {
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    assert(_ic_miss_blob!= NULL, "oops");
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    return _ic_miss_blob->entry_point();
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  }
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  static address get_handle_wrong_method_stub() {
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    assert(_wrong_method_blob!= NULL, "oops");
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    return _wrong_method_blob->entry_point();
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  }
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  static address get_handle_wrong_method_abstract_stub() {
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    assert(_wrong_method_abstract_blob!= NULL, "oops");
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    return _wrong_method_abstract_blob->entry_point();
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  }
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#ifdef COMPILER2
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  static void generate_uncommon_trap_blob(void);
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  static UncommonTrapBlob* uncommon_trap_blob()                  { return _uncommon_trap_blob; }
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#endif // COMPILER2
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  static address get_resolve_opt_virtual_call_stub() {
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    assert(_resolve_opt_virtual_call_blob != NULL, "oops");
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    return _resolve_opt_virtual_call_blob->entry_point();
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  }
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  static address get_resolve_virtual_call_stub() {
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    assert(_resolve_virtual_call_blob != NULL, "oops");
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    return _resolve_virtual_call_blob->entry_point();
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  }
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  static address get_resolve_static_call_stub() {
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    assert(_resolve_static_call_blob != NULL, "oops");
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    return _resolve_static_call_blob->entry_point();
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  }
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  static SafepointBlob* polling_page_return_handler_blob()     { return _polling_page_return_handler_blob; }
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  static SafepointBlob* polling_page_safepoint_handler_blob()  { return _polling_page_safepoint_handler_blob; }
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  static SafepointBlob* polling_page_vectors_safepoint_handler_blob()  { return _polling_page_vectors_safepoint_handler_blob; }
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  // Counters
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#ifndef PRODUCT
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  static address nof_megamorphic_calls_addr() { return (address)&_nof_megamorphic_calls; }
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#endif // PRODUCT
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  // Helper routine for full-speed JVMTI exception throwing support
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  static void throw_and_post_jvmti_exception(JavaThread *thread, Handle h_exception);
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  static void throw_and_post_jvmti_exception(JavaThread *thread, Symbol* name, const char *message = NULL);
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  // RedefineClasses() tracing support for obsolete method entry
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  static int rc_trace_method_entry(JavaThread* thread, Method* m);
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  // To be used as the entry point for unresolved native methods.
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  static address native_method_throw_unsatisfied_link_error_entry();
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  static address native_method_throw_unsupported_operation_exception_entry();
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  static oop retrieve_receiver(Symbol* sig, frame caller);
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  static void register_finalizer(JavaThread* thread, oopDesc* obj);
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  // dtrace notifications
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  static int dtrace_object_alloc(oopDesc* o, int size);
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  static int dtrace_object_alloc_base(Thread* thread, oopDesc* o, int size);
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  static int dtrace_method_entry(JavaThread* thread, Method* m);
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  static int dtrace_method_exit(JavaThread* thread, Method* m);
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  // Utility method for retrieving the Java thread id, returns 0 if the
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  // thread is not a well formed Java thread.
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  static jlong get_java_tid(Thread* thread);
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  // used by native wrappers to reenable yellow if overflow happened in native code
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  static void reguard_yellow_pages();
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  // Fill in the "X cannot be cast to a Y" message for ClassCastException
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  //
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  // @param thr the current thread
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  // @param caster_klass the class of the object we are casting
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  // @return the dynamically allocated exception message (must be freed
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  // by the caller using a resource mark)
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  //
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  // BCP must refer to the current 'checkcast' opcode for the frame
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  // on top of the stack.
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  // The caller (or one of its callers) must use a ResourceMark
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  // in order to correctly free the result.
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  //
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  static char* generate_class_cast_message(JavaThread* thr, Klass* caster_klass);
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  // Fill in the "X cannot be cast to a Y" message for ClassCastException
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  //
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  // @param caster_klass the class of the object we are casting
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  // @param target_klass the target klass attempt
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  // @return the dynamically allocated exception message (must be freed
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  // by the caller using a resource mark)
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dcubed
parents: 26683
diff changeset
   315
  //
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   316
  // This version does not require access the frame, so it can be called
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   317
  // from interpreted code
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   318
  // The caller (or one of it's callers) must use a ResourceMark
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   319
  // in order to correctly free the result.
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   320
  //
49056
91ada5977172 8197780: Null pointer dereference in Klass::is_instance_klass of klass.hpp:532
coleenp
parents: 48961
diff changeset
   321
  static char* generate_class_cast_message(Klass* caster_klass, Klass* target_klass, Symbol* target_klass_name = NULL);
1
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parents:
diff changeset
   322
489c9b5090e2 Initial load
duke
parents:
diff changeset
   323
  // Resolves a call site- may patch in the destination of the call into the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   324
  // compiled code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
  static methodHandle resolve_helper(JavaThread *thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
                                     bool is_virtual,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   327
                                     bool is_optimized, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
26683
a02753d5a0b2 8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 25472
diff changeset
   329
 private:
1
489c9b5090e2 Initial load
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parents:
diff changeset
   330
  // deopt blob
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
  static void generate_deopt_blob(void);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   332
26683
a02753d5a0b2 8057107: cleanup indent white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 25472
diff changeset
   333
 public:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
  static DeoptimizationBlob* deopt_blob(void)      { return _deopt_blob; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
  // Resets a call-site in compiled code so it will get resolved again.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
  static methodHandle reresolve_call_site(JavaThread *thread, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
  // In the code prolog, if the klass comparison fails, the inline cache
489c9b5090e2 Initial load
duke
parents:
diff changeset
   340
  // misses and the call site is patched to megamorphic
489c9b5090e2 Initial load
duke
parents:
diff changeset
   341
  static methodHandle handle_ic_miss_helper(JavaThread* thread, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
  // Find the method that called us.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
  static methodHandle find_callee_method(JavaThread* thread, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
489c9b5090e2 Initial load
duke
parents:
diff changeset
   346
489c9b5090e2 Initial load
duke
parents:
diff changeset
   347
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   348
  static Handle find_callee_info(JavaThread* thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
                                 Bytecodes::Code& bc,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
                                 CallInfo& callinfo, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
  static Handle find_callee_info_helper(JavaThread* thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   352
                                        vframeStream& vfst,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   353
                                        Bytecodes::Code& bc,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
                                        CallInfo& callinfo, TRAPS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 34220
diff changeset
   356
  static methodHandle extract_attached_method(vframeStream& vfst);
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 34220
diff changeset
   357
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
  static address clean_virtual_call_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
  static address clean_opt_virtual_call_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
  static address clean_static_call_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
36079
692adc3fa1b5 6378256: Performance problem with System.identityHashCode in client compiler
thartmann
parents: 35135
diff changeset
   362
#if defined(X86) && defined(COMPILER1)
692adc3fa1b5 6378256: Performance problem with System.identityHashCode in client compiler
thartmann
parents: 35135
diff changeset
   363
  // For Object.hashCode, System.identityHashCode try to pull hashCode from object header if available.
46727
6e4a84748e2c 8183039: Re-examine methodHandle methods uninlined by 8144256
coleenp
parents: 42650
diff changeset
   364
  static void inline_check_hashcode_from_object_header(MacroAssembler* masm, const methodHandle& method, Register obj_reg, Register result);
36079
692adc3fa1b5 6378256: Performance problem with System.identityHashCode in client compiler
thartmann
parents: 35135
diff changeset
   365
#endif // X86 && COMPILER1
692adc3fa1b5 6378256: Performance problem with System.identityHashCode in client compiler
thartmann
parents: 35135
diff changeset
   366
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
  // Read the array of BasicTypes from a Java signature, and compute where
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
  // compiled Java code would like to put the results.  Values in reg_lo and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
  // reg_hi refer to 4-byte quantities.  Values less than SharedInfo::stack0 are
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
  // registers, those above refer to 4-byte stack slots.  All stack slots are
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
  // based off of the window top.  SharedInfo::stack0 refers to the first usable
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
  // slot in the bottom of the frame. SharedInfo::stack0+1 refers to the memory word
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
  // 4-bytes higher. So for sparc because the register window save area is at
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  // the bottom of the frame the first 16 words will be skipped and SharedInfo::stack0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
  // will be just above it. (
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
  // return value is the maximum number of VMReg stack slots the convention will use.
13881
a326d528f3e1 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 13728
diff changeset
   379
  static int java_calling_convention(const BasicType* sig_bt, VMRegPair* regs, int total_args_passed, int is_outgoing);
a326d528f3e1 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 13728
diff changeset
   380
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33160
diff changeset
   381
  static void check_member_name_argument_is_last_argument(const methodHandle& method,
13881
a326d528f3e1 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 13728
diff changeset
   382
                                                          const BasicType* sig_bt,
a326d528f3e1 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 13728
diff changeset
   383
                                                          const VMRegPair* regs) NOT_DEBUG_RETURN;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
  // Ditto except for calling C
22832
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   386
  //
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   387
  // C argument in register AND stack slot.
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   388
  // Some architectures require that an argument must be passed in a register
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   389
  // AND in a stack slot. These architectures provide a second VMRegPair array
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   390
  // to be filled by the c_calling_convention method. On other architectures,
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   391
  // NULL is being passed as the second VMRegPair array, so arguments are either
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   392
  // passed in a register OR in a stack slot.
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   393
  static int c_calling_convention(const BasicType *sig_bt, VMRegPair *regs, VMRegPair *regs2,
03720a5b7595 8024344: PPC64 (part 112): C argument in register AND stack slot.
goetz
parents: 22808
diff changeset
   394
                                  int total_args_passed);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
37439
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   396
  static size_t trampoline_size();
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   397
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   398
  static void generate_trampoline(MacroAssembler *masm, address destination);
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   399
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
  // Generate I2C and C2I adapters. These adapters are simple argument marshalling
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
  // blobs. Unlike adapters in the tiger and earlier releases the code in these
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
  // blobs does not create a new frame and are therefore virtually invisible
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
  // to the stack walking code. In general these blobs extend the callers stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
  // as needed for the conversion of argument locations.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
  // When calling a c2i blob the code will always call the interpreter even if
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
  // by the time we reach the blob there is compiled code available. This allows
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  // the blob to pass the incoming stack pointer (the sender sp) in a known
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
  // location for the interpreter to record. This is used by the frame code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  // to correct the sender code to match up with the stack pointer when the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
  // thread left the compiled code. In addition it allows the interpreter
22834
3e2df6a4a28c 8024342: PPC64 (part 111): Support for C calling conventions that require 64-bit ints.
goetz
parents: 22832
diff changeset
   412
  // to remove the space the c2i adapter allocated to do its argument conversion.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
  // Although a c2i blob will always run interpreted even if compiled code is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
  // present if we see that compiled code is present the compiled call site
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
  // will be patched/re-resolved so that later calls will run compiled.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
22551
9bf46d16dcc6 8025856: Fix typos in the GC code
jwilhelm
parents: 22247
diff changeset
   418
  // Additionally a c2i blob need to have a unverified entry because it can be reached
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
  // in situations where the call site is an inlined cache site and may go megamorphic.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
  // A i2c adapter is simpler than the c2i adapter. This is because it is assumed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
  // that the interpreter before it does any call dispatch will record the current
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
  // stack pointer in the interpreter frame. On return it will restore the stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
  // pointer as needed. This means the i2c adapter code doesn't need any special
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
  // handshaking path with compiled code to keep the stack walking correct.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
  static AdapterHandlerEntry* generate_i2c2i_adapters(MacroAssembler *_masm,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
                                                      int total_args_passed,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
                                                      int max_arg,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
                                                      const BasicType *sig_bt,
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   431
                                                      const VMRegPair *regs,
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   432
                                                      AdapterFingerPrint* fingerprint);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   434
  static void gen_i2c_adapter(MacroAssembler *_masm,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   435
                              int total_args_passed,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   436
                              int comp_args_on_stack,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   437
                              const BasicType *sig_bt,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   438
                              const VMRegPair *regs);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   439
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  // OSR support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
  // OSR_migration_begin will extract the jvm state from an interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  // frame (locals, monitors) and store the data in a piece of C heap
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  // storage. This then allows the interpreter frame to be removed from the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
  // stack and the OSR nmethod to be called. That method is called with a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
  // pointer to the C heap storage. This pointer is the return value from
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  // OSR_migration_begin.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
26684
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   449
  static intptr_t* OSR_migration_begin(JavaThread *thread);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
  // OSR_migration_end is a trivial routine. It is called after the compiled
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
  // method has extracted the jvm state from the C heap that OSR_migration_begin
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
  // created. It's entire job is to simply free this storage.
26684
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   454
  static void OSR_migration_end(intptr_t* buf);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
  // Convert a sig into a calling convention register layout
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
  // and find interesting things about it.
17872
2c49e72dcf08 8009981: nashorn tests fail with -XX:+VerifyStack
roland
parents: 15482
diff changeset
   458
  static VMRegPair* find_callee_arguments(Symbol* sig, bool has_receiver, bool has_appendix, int *arg_size);
26684
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   459
  static VMReg name_for_receiver();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
  // "Top of Stack" slots that may be unused by the calling convention but must
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
  // otherwise be preserved.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
  // On Intel these are not necessary and the value can be zero.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
  // On Sparc this describes the words reserved for storing a register window
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  // when an interrupt occurs.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  static uint out_preserve_stack_slots();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
13883
6979b9850feb 7196199: java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect
kvn
parents: 13881
diff changeset
   468
  // Is vector's size (in bytes) bigger than a size saved by default?
6979b9850feb 7196199: java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect
kvn
parents: 13881
diff changeset
   469
  // For example, on x86 16 bytes XMM registers are saved by default.
6979b9850feb 7196199: java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect
kvn
parents: 13881
diff changeset
   470
  static bool is_wide_vector(int size);
6979b9850feb 7196199: java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect
kvn
parents: 13881
diff changeset
   471
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  // Save and restore a native result
25069
c937c5e883c5 8047156: cleanup more non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents: 24462
diff changeset
   473
  static void    save_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots);
c937c5e883c5 8047156: cleanup more non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents: 24462
diff changeset
   474
  static void restore_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  // Generate a native wrapper for a given method.  The method takes arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  // in the Java compiled code convention, marshals them to the native
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
  // convention (handlizes oops, etc), transitions to native, makes the call,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  // returns to java state (possibly blocking), unhandlizes any result and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  // returns.
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   481
  //
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   482
  // The wrapper may contain special-case code if the given method
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   483
  // is a JNI critical method, or a compiled method handle adapter,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   484
  // such as _invokeBasic, _linkToVirtual, etc.
13881
a326d528f3e1 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 13728
diff changeset
   485
  static nmethod* generate_native_wrapper(MacroAssembler* masm,
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33160
diff changeset
   486
                                          const methodHandle& method,
8872
36680c58660e 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 8076
diff changeset
   487
                                          int compile_id,
13881
a326d528f3e1 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 13728
diff changeset
   488
                                          BasicType* sig_bt,
a326d528f3e1 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 13728
diff changeset
   489
                                          VMRegPair* regs,
25069
c937c5e883c5 8047156: cleanup more non-indent white space issues prior to Contended Locking cleanup bucket
dcubed
parents: 24462
diff changeset
   490
                                          BasicType ret_type);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
11637
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 10517
diff changeset
   492
  // Block before entering a JNI critical method
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 10517
diff changeset
   493
  static void block_for_jni_critical(JavaThread* thread);
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 10517
diff changeset
   494
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
  // A compiled caller has just called the interpreter, but compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
  // exists.  Patch the caller so he no longer calls into the interpreter.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13396
diff changeset
   497
  static void fixup_callers_callsite(Method* moop, address ret_pc);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   498
  static bool should_fixup_call_destination(address destination, address entry_point, address caller_pc, Method* moop, CodeBlob* cb);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
  // Slow-path Locking and Unlocking
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
  static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread);
30244
d4e471395ff5 8073165: Contended Locking fast exit bucket
dcubed
parents: 28947
diff changeset
   502
  static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
  // Resolving of calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
  static address resolve_static_call_C     (JavaThread *thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
  static address resolve_virtual_call_C    (JavaThread *thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  static address resolve_opt_virtual_call_C(JavaThread *thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
  // arraycopy, the non-leaf version.  (See StubRoutines for all the leaf calls.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  static void slow_arraycopy_C(oopDesc* src,  jint src_pos,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
                               oopDesc* dest, jint dest_pos,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
                               jint length, JavaThread* thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
  // handle ic miss with caller being compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
  // wrong method handling (inline cache misses, zombie methods)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  static address handle_wrong_method(JavaThread* thread);
21726
3533814ab107 8028319: ConflictingDefaultsTest.testReabstract spins when running with -mode invoke and -Xcomp
morris
parents: 17872
diff changeset
   517
  static address handle_wrong_method_abstract(JavaThread* thread);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
  static address handle_wrong_method_ic_miss(JavaThread* thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
38209
b2a58604e046 8156088: Reintegrate 8153892: Handle unsafe access error directly in signal handler instead of going through a stub
mikael
parents: 38190
diff changeset
   520
  static address handle_unsafe_access(JavaThread* thread, address next_pc);
b2a58604e046 8156088: Reintegrate 8153892: Handle unsafe access error directly in signal handler instead of going through a stub
mikael
parents: 38190
diff changeset
   521
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  // Collect and print inline cache miss statistics
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  enum { maxICmiss_count = 100 };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  static int     _ICmiss_index;                  // length of IC miss histogram
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
  static int     _ICmiss_count[maxICmiss_count]; // miss counts
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
  static address _ICmiss_at[maxICmiss_count];    // miss addresses
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
  static void trace_ic_miss(address at);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  static int _throw_null_ctr;                    // throwing a null-pointer exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  static int _ic_miss_ctr;                       // total # of IC misses
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
  static int _wrong_method_ctr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
  static int _resolve_static_ctr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
  static int _resolve_virtual_ctr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
  static int _resolve_opt_virtual_ctr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  static int _implicit_null_throws;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
  static int _implicit_div0_throws;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
  static int _jbyte_array_copy_ctr;        // Slow-path byte array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
  static int _jshort_array_copy_ctr;       // Slow-path short array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
  static int _jint_array_copy_ctr;         // Slow-path int array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
  static int _jlong_array_copy_ctr;        // Slow-path long array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
  static int _oop_array_copy_ctr;          // Slow-path oop array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
  static int _checkcast_array_copy_ctr;    // Slow-path oop array copy, with cast
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  static int _unsafe_array_copy_ctr;       // Slow-path includes alignment checks
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
  static int _generic_array_copy_ctr;      // Slow-path includes type decoding
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
  static int _slow_array_copy_ctr;         // Slow-path failed out to a method call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
  static int _new_instance_ctr;            // 'new' object requires GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  static int _new_array_ctr;               // 'new' array requires GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
  static int _multi1_ctr, _multi2_ctr, _multi3_ctr, _multi4_ctr, _multi5_ctr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
  static int _find_handler_ctr;            // find exception handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
  static int _rethrow_ctr;                 // rethrow exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  static int _mon_enter_stub_ctr;          // monitor enter stub
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  static int _mon_exit_stub_ctr;           // monitor exit stub
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  static int _mon_enter_ctr;               // monitor enter slow
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  static int _mon_exit_ctr;                // monitor exit slow
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  static int _partial_subtype_ctr;         // SubRoutines::partial_subtype_check
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
  // Statistics code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  // stats for "normal" compiled calls (non-interface)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
  static int     _nof_normal_calls;              // total # of calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
  static int     _nof_optimized_calls;           // total # of statically-bound calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
  static int     _nof_inlined_calls;             // total # of inlined normal calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  static int     _nof_static_calls;              // total # of calls to static methods or super methods (invokespecial)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  static int     _nof_inlined_static_calls;      // total # of inlined static calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  // stats for compiled interface calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  static int     _nof_interface_calls;           // total # of compiled calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  static int     _nof_optimized_interface_calls; // total # of statically-bound interface calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  static int     _nof_inlined_interface_calls;   // total # of inlined interface calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  static int     _nof_megamorphic_interface_calls;// total # of megamorphic interface calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
  // stats for runtime exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
  static int     _nof_removable_exceptions;      // total # of exceptions that could be replaced by branches due to inlining
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
 public: // for compiler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
  static address nof_normal_calls_addr()                { return (address)&_nof_normal_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  static address nof_optimized_calls_addr()             { return (address)&_nof_optimized_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
  static address nof_inlined_calls_addr()               { return (address)&_nof_inlined_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  static address nof_static_calls_addr()                { return (address)&_nof_static_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  static address nof_inlined_static_calls_addr()        { return (address)&_nof_inlined_static_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
  static address nof_interface_calls_addr()             { return (address)&_nof_interface_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  static address nof_optimized_interface_calls_addr()   { return (address)&_nof_optimized_interface_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
  static address nof_inlined_interface_calls_addr()     { return (address)&_nof_inlined_interface_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
  static address nof_megamorphic_interface_calls_addr() { return (address)&_nof_megamorphic_interface_calls; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
  static void print_call_statistics(int comp_total);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
  static void print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
  static void print_ic_miss_histogram();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
#endif // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
// ---------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
// Implementation of AdapterHandlerLibrary
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
// This library manages argument marshaling adapters and native wrappers.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
// There are 2 flavors of adapters: I2C and C2I.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
//
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   602
// The I2C flavor takes a stock interpreted call setup, marshals the
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   603
// arguments for a Java-compiled call, and jumps to Rmethod-> code()->
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   604
// code_begin().  It is broken to call it without an nmethod assigned.
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   605
// The usual behavior is to lift any register arguments up out of the
22551
9bf46d16dcc6 8025856: Fix typos in the GC code
jwilhelm
parents: 22247
diff changeset
   606
// stack and possibly re-pack the extra arguments to be contiguous.
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   607
// I2C adapters will save what the interpreter's stack pointer will be
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   608
// after arguments are popped, then adjust the interpreter's frame
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   609
// size to force alignment and possibly to repack the arguments.
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   610
// After re-packing, it jumps to the compiled code start.  There are
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   611
// no safepoints in this adapter code and a GC cannot happen while
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   612
// marshaling is in progress.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
// The C2I flavor takes a stock compiled call setup plus the target method in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
// Rmethod, marshals the arguments for an interpreted call and jumps to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
// Rmethod->_i2i_entry.  On entry, the interpreted frame has not yet been
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
// setup.  Compiled frames are fixed-size and the args are likely not in the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
// right place.  Hence all the args will likely be copied into the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
// interpreter's frame, forcing that frame to grow.  The compiled frame's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
// outgoing stack args will be dead after the copy.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
// Native wrappers, like adapters, marshal arguments.  Unlike adapters they
22551
9bf46d16dcc6 8025856: Fix typos in the GC code
jwilhelm
parents: 22247
diff changeset
   623
// also perform an official frame push & pop.  They have a call to the native
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
// routine in their middles and end in a return (instead of ending in a jump).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
// The native wrappers are stored in real nmethods instead of the BufferBlobs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
// used by the adapters.  The code generation happens here because it's very
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
// similar to what the adapters have to do.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11637
diff changeset
   629
class AdapterHandlerEntry : public BasicHashtableEntry<mtCode> {
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   630
  friend class AdapterHandlerTable;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   631
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
 private:
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   633
  AdapterFingerPrint* _fingerprint;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
  address _i2c_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
  address _c2i_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
  address _c2i_unverified_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   638
#ifdef ASSERT
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   639
  // Captures code and signature used to generate this adapter when
22551
9bf46d16dcc6 8025856: Fix typos in the GC code
jwilhelm
parents: 22247
diff changeset
   640
  // verifying adapter equivalence.
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   641
  unsigned char* _saved_code;
22209
25c1e0025b51 8026478: -XX:+VerifyAdapterSharing is broken
anoll
parents: 21726
diff changeset
   642
  int            _saved_code_length;
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   643
#endif
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   644
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   645
  void init(AdapterFingerPrint* fingerprint, address i2c_entry, address c2i_entry, address c2i_unverified_entry) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   646
    _fingerprint = fingerprint;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   647
    _i2c_entry = i2c_entry;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   648
    _c2i_entry = c2i_entry;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   649
    _c2i_unverified_entry = c2i_unverified_entry;
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   650
#ifdef ASSERT
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   651
    _saved_code = NULL;
22209
25c1e0025b51 8026478: -XX:+VerifyAdapterSharing is broken
anoll
parents: 21726
diff changeset
   652
    _saved_code_length = 0;
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   653
#endif
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   654
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   655
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   656
  void deallocate();
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   657
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   658
  // should never be used
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   659
  AdapterHandlerEntry();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   660
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
 public:
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   662
  address get_i2c_entry()            const { return _i2c_entry; }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   663
  address get_c2i_entry()            const { return _c2i_entry; }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   664
  address get_c2i_unverified_entry() const { return _c2i_unverified_entry; }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   665
  address base_address();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  void relocate(address new_base);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   667
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   668
  AdapterFingerPrint* fingerprint() const { return _fingerprint; }
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   669
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   670
  AdapterHandlerEntry* next() {
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11637
diff changeset
   671
    return (AdapterHandlerEntry*)BasicHashtableEntry<mtCode>::next();
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   672
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   673
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   674
#ifdef ASSERT
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   675
  // Used to verify that code generated for shared adapters is equivalent
22209
25c1e0025b51 8026478: -XX:+VerifyAdapterSharing is broken
anoll
parents: 21726
diff changeset
   676
  void save_code   (unsigned char* code, int length);
25c1e0025b51 8026478: -XX:+VerifyAdapterSharing is broken
anoll
parents: 21726
diff changeset
   677
  bool compare_code(unsigned char* code, int length);
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   678
#endif
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4735
diff changeset
   679
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   680
  //virtual void print_on(outputStream* st) const;  DO NOT USE
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   681
  void print_adapter_on(outputStream* st) const;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
42608
14af45789042 8169867: Method::restore_unshareable_info does not invoke Method::link_method
iklam
parents: 41057
diff changeset
   684
// This class is used only with DumpSharedSpaces==true. It holds extra information
14af45789042 8169867: Method::restore_unshareable_info does not invoke Method::link_method
iklam
parents: 41057
diff changeset
   685
// that's used only during CDS dump time.
14af45789042 8169867: Method::restore_unshareable_info does not invoke Method::link_method
iklam
parents: 41057
diff changeset
   686
// For details, see comments around Method::link_method()
37439
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   687
class CDSAdapterHandlerEntry: public AdapterHandlerEntry {
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   688
  address               _c2i_entry_trampoline;   // allocated from shared spaces "MC" region
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   689
  AdapterHandlerEntry** _adapter_trampoline;     // allocated from shared spaces "MD" region
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   690
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   691
public:
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   692
  address get_c2i_entry_trampoline()             const { return _c2i_entry_trampoline; }
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   693
  AdapterHandlerEntry** get_adapter_trampoline() const { return _adapter_trampoline; }
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   694
  void init() NOT_CDS_RETURN;
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   695
};
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   696
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   697
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
class AdapterHandlerLibrary: public AllStatic {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
 private:
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
   700
  static BufferBlob* _buffer; // the temporary code buffer in CodeCache
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   701
  static AdapterHandlerTable* _adapters;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   702
  static AdapterHandlerEntry* _abstract_method_handler;
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
   703
  static BufferBlob* buffer_blob();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
  static void initialize();
37439
e8970711113b 8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents: 37179
diff changeset
   705
  static AdapterHandlerEntry* get_adapter0(const methodHandle& method);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
 public:
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   708
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   709
  static AdapterHandlerEntry* new_entry(AdapterFingerPrint* fingerprint,
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   710
                                        address i2c_entry, address c2i_entry, address c2i_unverified_entry);
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33160
diff changeset
   711
  static void create_native_wrapper(const methodHandle& method);
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33160
diff changeset
   712
  static AdapterHandlerEntry* get_adapter(const methodHandle& method);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   713
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   714
  static void print_handler(const CodeBlob* b) { print_handler_on(tty, b); }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   715
  static void print_handler_on(outputStream* st, const CodeBlob* b);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31583
diff changeset
   716
  static bool contains(const CodeBlob* b);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
#ifndef PRODUCT
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4567
diff changeset
   718
  static void print_statistics();
26684
d1221849ea3d 8057109: manual cleanup of white space issues prior to Contended Locking reorder and cache line bucket
dcubed
parents: 26683
diff changeset
   719
#endif // PRODUCT
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
};
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6965
diff changeset
   722
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6965
diff changeset
   723
#endif // SHARE_VM_RUNTIME_SHAREDRUNTIME_HPP