diff -r 000000000000 -r f90c822e73f8 src/share/vm/opto/runtime.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/opto/runtime.hpp Wed Apr 27 01:25:04 2016 +0800 @@ -0,0 +1,342 @@ +/* + * Copyright (c) 1998, 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_OPTO_RUNTIME_HPP +#define SHARE_VM_OPTO_RUNTIME_HPP + +#include "code/codeBlob.hpp" +#include "opto/machnode.hpp" +#include "opto/type.hpp" +#include "runtime/biasedLocking.hpp" +#include "runtime/rtmLocking.hpp" +#include "runtime/deoptimization.hpp" +#include "runtime/vframe.hpp" + +//------------------------------OptoRuntime------------------------------------ +// Opto compiler runtime routines +// +// These are all generated from Ideal graphs. They are called with the +// Java calling convention. Internally they call C++. They are made once at +// startup time and Opto compiles calls to them later. +// Things are broken up into quads: the signature they will be called with, +// the address of the generated code, the corresponding C++ code and an +// nmethod. + +// The signature (returned by "xxx_Type()") is used at startup time by the +// Generator to make the generated code "xxx_Java". Opto compiles calls +// to the generated code "xxx_Java". When the compiled code gets executed, +// it calls the C++ code "xxx_C". The generated nmethod is saved in the +// CodeCache. Exception handlers use the nmethod to get the callee-save +// register OopMaps. +class CallInfo; + +// +// NamedCounters are tagged counters which can be used for profiling +// code in various ways. Currently they are used by the lock coarsening code +// + +class NamedCounter : public CHeapObj { +public: + enum CounterTag { + NoTag, + LockCounter, + EliminatedLockCounter, + BiasedLockingCounter, + RTMLockingCounter + }; + +private: + const char * _name; + int _count; + CounterTag _tag; + NamedCounter* _next; + + public: + NamedCounter(const char *n, CounterTag tag = NoTag): + _name(n), + _count(0), + _next(NULL), + _tag(tag) {} + + const char * name() const { return _name; } + int count() const { return _count; } + address addr() { return (address)&_count; } + CounterTag tag() const { return _tag; } + void set_tag(CounterTag tag) { _tag = tag; } + + NamedCounter* next() const { return _next; } + void set_next(NamedCounter* next) { + assert(_next == NULL || next == NULL, "already set"); + _next = next; + } + +}; + +class BiasedLockingNamedCounter : public NamedCounter { + private: + BiasedLockingCounters _counters; + + public: + BiasedLockingNamedCounter(const char *n) : + NamedCounter(n, BiasedLockingCounter), _counters() {} + + BiasedLockingCounters* counters() { return &_counters; } +}; + + +class RTMLockingNamedCounter : public NamedCounter { + private: + RTMLockingCounters _counters; + + public: + RTMLockingNamedCounter(const char *n) : + NamedCounter(n, RTMLockingCounter), _counters() {} + + RTMLockingCounters* counters() { return &_counters; } +}; + +typedef const TypeFunc*(*TypeFunc_generator)(); + +class OptoRuntime : public AllStatic { + friend class Matcher; // allow access to stub names + + private: + // define stubs + static address generate_stub(ciEnv* ci_env, TypeFunc_generator gen, address C_function, const char *name, int is_fancy_jump, bool pass_tls, bool save_arguments, bool return_pc); + + // References to generated stubs + static address _new_instance_Java; + static address _new_array_Java; + static address _new_array_nozero_Java; + static address _multianewarray2_Java; + static address _multianewarray3_Java; + static address _multianewarray4_Java; + static address _multianewarray5_Java; + static address _multianewarrayN_Java; + static address _g1_wb_pre_Java; + static address _g1_wb_post_Java; + static address _vtable_must_compile_Java; + static address _complete_monitor_locking_Java; + static address _rethrow_Java; + + static address _slow_arraycopy_Java; + static address _register_finalizer_Java; + +# ifdef ENABLE_ZAP_DEAD_LOCALS + static address _zap_dead_Java_locals_Java; + static address _zap_dead_native_locals_Java; +# endif + + + // + // Implementation of runtime methods + // ================================= + + // Allocate storage for a Java instance. + static void new_instance_C(Klass* instance_klass, JavaThread *thread); + + // Allocate storage for a objArray or typeArray + static void new_array_C(Klass* array_klass, int len, JavaThread *thread); + static void new_array_nozero_C(Klass* array_klass, int len, JavaThread *thread); + + // Post-slow-path-allocation, pre-initializing-stores step for + // implementing ReduceInitialCardMarks + static void new_store_pre_barrier(JavaThread* thread); + + // Allocate storage for a multi-dimensional arrays + // Note: needs to be fixed for arbitrary number of dimensions + static void multianewarray2_C(Klass* klass, int len1, int len2, JavaThread *thread); + static void multianewarray3_C(Klass* klass, int len1, int len2, int len3, JavaThread *thread); + static void multianewarray4_C(Klass* klass, int len1, int len2, int len3, int len4, JavaThread *thread); + static void multianewarray5_C(Klass* klass, int len1, int len2, int len3, int len4, int len5, JavaThread *thread); + static void multianewarrayN_C(Klass* klass, arrayOopDesc* dims, JavaThread *thread); + static void g1_wb_pre_C(oopDesc* orig, JavaThread* thread); + static void g1_wb_post_C(void* card_addr, JavaThread* thread); + +public: + // Slow-path Locking and Unlocking + static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread); + static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock); + +private: + + // Implicit exception support + static void throw_null_exception_C(JavaThread* thread); + + // Exception handling + static address handle_exception_C (JavaThread* thread); + static address handle_exception_C_helper(JavaThread* thread, nmethod*& nm); + static address rethrow_C (oopDesc* exception, JavaThread *thread, address return_pc ); + static void deoptimize_caller_frame (JavaThread *thread); + static void deoptimize_caller_frame (JavaThread *thread, bool doit); + static bool is_deoptimized_caller_frame (JavaThread *thread); + + // CodeBlob support + // =================================================================== + + static ExceptionBlob* _exception_blob; + static void generate_exception_blob(); + + static void register_finalizer(oopDesc* obj, JavaThread* thread); + + // zaping dead locals, either from Java frames or from native frames +# ifdef ENABLE_ZAP_DEAD_LOCALS + static void zap_dead_Java_locals_C( JavaThread* thread); + static void zap_dead_native_locals_C( JavaThread* thread); + + static void zap_dead_java_or_native_locals( JavaThread*, bool (*)(frame*)); + + public: + static int ZapDeadCompiledLocals_count; + +# endif + + + public: + + static bool is_callee_saved_register(MachRegisterNumbers reg); + + // One time only generate runtime code stubs. Returns true + // when runtime stubs have been generated successfully and + // false otherwise. + static bool generate(ciEnv* env); + + // Returns the name of a stub + static const char* stub_name(address entry); + + // access to runtime stubs entry points for java code + static address new_instance_Java() { return _new_instance_Java; } + static address new_array_Java() { return _new_array_Java; } + static address new_array_nozero_Java() { return _new_array_nozero_Java; } + static address multianewarray2_Java() { return _multianewarray2_Java; } + static address multianewarray3_Java() { return _multianewarray3_Java; } + static address multianewarray4_Java() { return _multianewarray4_Java; } + static address multianewarray5_Java() { return _multianewarray5_Java; } + static address multianewarrayN_Java() { return _multianewarrayN_Java; } + static address g1_wb_pre_Java() { return _g1_wb_pre_Java; } + static address g1_wb_post_Java() { return _g1_wb_post_Java; } + static address vtable_must_compile_stub() { return _vtable_must_compile_Java; } + static address complete_monitor_locking_Java() { return _complete_monitor_locking_Java; } + + static address slow_arraycopy_Java() { return _slow_arraycopy_Java; } + static address register_finalizer_Java() { return _register_finalizer_Java; } + + +# ifdef ENABLE_ZAP_DEAD_LOCALS + static address zap_dead_locals_stub(bool is_native) { return is_native + ? _zap_dead_native_locals_Java + : _zap_dead_Java_locals_Java; } + static MachNode* node_to_call_zap_dead_locals(Node* n, int block_num, bool is_native); +# endif + + static ExceptionBlob* exception_blob() { return _exception_blob; } + + // Leaf routines helping with method data update + static void profile_receiver_type_C(DataLayout* data, oopDesc* receiver); + + // Implicit exception support + static void throw_div0_exception_C (JavaThread* thread); + static void throw_stack_overflow_error_C(JavaThread* thread); + + // Exception handling + static address rethrow_stub() { return _rethrow_Java; } + + + // Type functions + // ====================================================== + + static const TypeFunc* new_instance_Type(); // object allocation (slow case) + static const TypeFunc* new_array_Type (); // [a]newarray (slow case) + static const TypeFunc* multianewarray_Type(int ndim); // multianewarray + static const TypeFunc* multianewarray2_Type(); // multianewarray + static const TypeFunc* multianewarray3_Type(); // multianewarray + static const TypeFunc* multianewarray4_Type(); // multianewarray + static const TypeFunc* multianewarray5_Type(); // multianewarray + static const TypeFunc* multianewarrayN_Type(); // multianewarray + static const TypeFunc* g1_wb_pre_Type(); + static const TypeFunc* g1_wb_post_Type(); + static const TypeFunc* complete_monitor_enter_Type(); + static const TypeFunc* complete_monitor_exit_Type(); + static const TypeFunc* uncommon_trap_Type(); + static const TypeFunc* athrow_Type(); + static const TypeFunc* rethrow_Type(); + static const TypeFunc* Math_D_D_Type(); // sin,cos & friends + static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends + static const TypeFunc* modf_Type(); + static const TypeFunc* l2f_Type(); + static const TypeFunc* void_long_Type(); + + static const TypeFunc* flush_windows_Type(); + + // arraycopy routine types + static const TypeFunc* fast_arraycopy_Type(); // bit-blasters + static const TypeFunc* checkcast_arraycopy_Type(); + static const TypeFunc* generic_arraycopy_Type(); + static const TypeFunc* slow_arraycopy_Type(); // the full routine + + static const TypeFunc* array_fill_Type(); + + static const TypeFunc* aescrypt_block_Type(); + static const TypeFunc* cipherBlockChaining_aescrypt_Type(); + + static const TypeFunc* updateBytesCRC32_Type(); + + // leaf on stack replacement interpreter accessor types + static const TypeFunc* osr_end_Type(); + + // leaf methodData routine types + static const TypeFunc* profile_receiver_type_Type(); + + // leaf on stack replacement interpreter accessor types + static const TypeFunc* fetch_int_Type(); + static const TypeFunc* fetch_long_Type(); + static const TypeFunc* fetch_float_Type(); + static const TypeFunc* fetch_double_Type(); + static const TypeFunc* fetch_oop_Type(); + static const TypeFunc* fetch_monitor_Type(); + + static const TypeFunc* register_finalizer_Type(); + + // Dtrace support + static const TypeFunc* dtrace_method_entry_exit_Type(); + static const TypeFunc* dtrace_object_alloc_Type(); + +# ifdef ENABLE_ZAP_DEAD_LOCALS + static const TypeFunc* zap_dead_locals_Type(); +# endif + + private: + static NamedCounter * volatile _named_counters; + + public: + // helper function which creates a named counter labeled with the + // if they are available + static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag); + + // dumps all the named counters + static void print_named_counters(); + +}; + +#endif // SHARE_VM_OPTO_RUNTIME_HPP