1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/opto/runtime.hpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,289 @@
1.4 +/*
1.5 + * Copyright 1998-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +//------------------------------OptoRuntime------------------------------------
1.29 +// Opto compiler runtime routines
1.30 +//
1.31 +// These are all generated from Ideal graphs. They are called with the
1.32 +// Java calling convention. Internally they call C++. They are made once at
1.33 +// startup time and Opto compiles calls to them later.
1.34 +// Things are broken up into quads: the signature they will be called with,
1.35 +// the address of the generated code, the corresponding C++ code and an
1.36 +// nmethod.
1.37 +
1.38 +// The signature (returned by "xxx_Type()") is used at startup time by the
1.39 +// Generator to make the generated code "xxx_Java". Opto compiles calls
1.40 +// to the generated code "xxx_Java". When the compiled code gets executed,
1.41 +// it calls the C++ code "xxx_C". The generated nmethod is saved in the
1.42 +// CodeCache. Exception handlers use the nmethod to get the callee-save
1.43 +// register OopMaps.
1.44 +class CallInfo;
1.45 +
1.46 +//
1.47 +// NamedCounters are tagged counters which can be used for profiling
1.48 +// code in various ways. Currently they are used by the lock coarsening code
1.49 +//
1.50 +
1.51 +class NamedCounter : public CHeapObj {
1.52 +public:
1.53 + enum CounterTag {
1.54 + NoTag,
1.55 + LockCounter,
1.56 + EliminatedLockCounter,
1.57 + BiasedLockingCounter
1.58 + };
1.59 +
1.60 +private:
1.61 + const char * _name;
1.62 + int _count;
1.63 + CounterTag _tag;
1.64 + NamedCounter* _next;
1.65 +
1.66 + public:
1.67 + NamedCounter(const char *n, CounterTag tag = NoTag):
1.68 + _name(n),
1.69 + _count(0),
1.70 + _next(NULL),
1.71 + _tag(tag) {}
1.72 +
1.73 + const char * name() const { return _name; }
1.74 + int count() const { return _count; }
1.75 + address addr() { return (address)&_count; }
1.76 + CounterTag tag() const { return _tag; }
1.77 + void set_tag(CounterTag tag) { _tag = tag; }
1.78 +
1.79 + NamedCounter* next() const { return _next; }
1.80 + void set_next(NamedCounter* next) {
1.81 + assert(_next == NULL, "already set");
1.82 + _next = next;
1.83 + }
1.84 +
1.85 +};
1.86 +
1.87 +class BiasedLockingNamedCounter : public NamedCounter {
1.88 + private:
1.89 + BiasedLockingCounters _counters;
1.90 +
1.91 + public:
1.92 + BiasedLockingNamedCounter(const char *n) :
1.93 + NamedCounter(n, BiasedLockingCounter), _counters() {}
1.94 +
1.95 + BiasedLockingCounters* counters() { return &_counters; }
1.96 +};
1.97 +
1.98 +typedef const TypeFunc*(*TypeFunc_generator)();
1.99 +
1.100 +class OptoRuntime : public AllStatic {
1.101 + friend class Matcher; // allow access to stub names
1.102 +
1.103 + private:
1.104 + // define stubs
1.105 + 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);
1.106 +
1.107 + // References to generated stubs
1.108 + static address _new_instance_Java;
1.109 + static address _new_array_Java;
1.110 + static address _multianewarray2_Java;
1.111 + static address _multianewarray3_Java;
1.112 + static address _multianewarray4_Java;
1.113 + static address _multianewarray5_Java;
1.114 + static address _vtable_must_compile_Java;
1.115 + static address _complete_monitor_locking_Java;
1.116 + static address _rethrow_Java;
1.117 +
1.118 + static address _slow_arraycopy_Java;
1.119 + static address _register_finalizer_Java;
1.120 +
1.121 +# ifdef ENABLE_ZAP_DEAD_LOCALS
1.122 + static address _zap_dead_Java_locals_Java;
1.123 + static address _zap_dead_native_locals_Java;
1.124 +# endif
1.125 +
1.126 +
1.127 + //
1.128 + // Implementation of runtime methods
1.129 + // =================================
1.130 +
1.131 + // Allocate storage for a Java instance.
1.132 + static void new_instance_C(klassOopDesc* instance_klass, JavaThread *thread);
1.133 +
1.134 + // Allocate storage for a objArray or typeArray
1.135 + static void new_array_C(klassOopDesc* array_klass, int len, JavaThread *thread);
1.136 +
1.137 + // Post-allocation step for implementing ReduceInitialCardMarks:
1.138 + static void do_eager_card_mark(JavaThread* thread);
1.139 +
1.140 + // Allocate storage for a multi-dimensional arrays
1.141 + // Note: needs to be fixed for arbitrary number of dimensions
1.142 + static void multianewarray2_C(klassOopDesc* klass, int len1, int len2, JavaThread *thread);
1.143 + static void multianewarray3_C(klassOopDesc* klass, int len1, int len2, int len3, JavaThread *thread);
1.144 + static void multianewarray4_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, JavaThread *thread);
1.145 + static void multianewarray5_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, int len5, JavaThread *thread);
1.146 +
1.147 +public:
1.148 + // Slow-path Locking and Unlocking
1.149 + static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread);
1.150 + static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock);
1.151 +
1.152 +private:
1.153 +
1.154 + // Implicit exception support
1.155 + static void throw_null_exception_C(JavaThread* thread);
1.156 +
1.157 + // Exception handling
1.158 + static address handle_exception_C (JavaThread* thread);
1.159 + static address handle_exception_C_helper(JavaThread* thread, nmethod*& nm);
1.160 + static address rethrow_C (oopDesc* exception, JavaThread *thread, address return_pc );
1.161 + static void deoptimize_caller_frame (JavaThread *thread, bool doit);
1.162 +
1.163 + // CodeBlob support
1.164 + // ===================================================================
1.165 +
1.166 + static ExceptionBlob* _exception_blob;
1.167 + static void generate_exception_blob();
1.168 +
1.169 + static void register_finalizer(oopDesc* obj, JavaThread* thread);
1.170 +
1.171 + // zaping dead locals, either from Java frames or from native frames
1.172 +# ifdef ENABLE_ZAP_DEAD_LOCALS
1.173 + static void zap_dead_Java_locals_C( JavaThread* thread);
1.174 + static void zap_dead_native_locals_C( JavaThread* thread);
1.175 +
1.176 + static void zap_dead_java_or_native_locals( JavaThread*, bool (*)(frame*));
1.177 +
1.178 + public:
1.179 + static int ZapDeadCompiledLocals_count;
1.180 +
1.181 +# endif
1.182 +
1.183 +
1.184 + public:
1.185 +
1.186 + static bool is_callee_saved_register(MachRegisterNumbers reg);
1.187 +
1.188 + // One time only generate runtime code stubs
1.189 + static void generate(ciEnv* env);
1.190 +
1.191 + // Returns the name of a stub
1.192 + static const char* stub_name(address entry);
1.193 +
1.194 + // access to runtime stubs entry points for java code
1.195 + static address new_instance_Java() { return _new_instance_Java; }
1.196 + static address new_array_Java() { return _new_array_Java; }
1.197 + static address multianewarray2_Java() { return _multianewarray2_Java; }
1.198 + static address multianewarray3_Java() { return _multianewarray3_Java; }
1.199 + static address multianewarray4_Java() { return _multianewarray4_Java; }
1.200 + static address multianewarray5_Java() { return _multianewarray5_Java; }
1.201 + static address vtable_must_compile_stub() { return _vtable_must_compile_Java; }
1.202 + static address complete_monitor_locking_Java() { return _complete_monitor_locking_Java; }
1.203 +
1.204 + static address slow_arraycopy_Java() { return _slow_arraycopy_Java; }
1.205 + static address register_finalizer_Java() { return _register_finalizer_Java; }
1.206 +
1.207 +
1.208 +# ifdef ENABLE_ZAP_DEAD_LOCALS
1.209 + static address zap_dead_locals_stub(bool is_native) { return is_native
1.210 + ? _zap_dead_native_locals_Java
1.211 + : _zap_dead_Java_locals_Java; }
1.212 + static MachNode* node_to_call_zap_dead_locals(Node* n, int block_num, bool is_native);
1.213 +# endif
1.214 +
1.215 + static ExceptionBlob* exception_blob() { return _exception_blob; }
1.216 +
1.217 + // Leaf routines helping with method data update
1.218 + static void profile_receiver_type_C(DataLayout* data, oopDesc* receiver);
1.219 +
1.220 + // Implicit exception support
1.221 + static void throw_div0_exception_C (JavaThread* thread);
1.222 + static void throw_stack_overflow_error_C(JavaThread* thread);
1.223 +
1.224 + // Exception handling
1.225 + static address rethrow_stub() { return _rethrow_Java; }
1.226 +
1.227 +
1.228 + // Type functions
1.229 + // ======================================================
1.230 +
1.231 + static const TypeFunc* new_instance_Type(); // object allocation (slow case)
1.232 + static const TypeFunc* new_array_Type (); // [a]newarray (slow case)
1.233 + static const TypeFunc* multianewarray_Type(int ndim); // multianewarray
1.234 + static const TypeFunc* multianewarray2_Type(); // multianewarray
1.235 + static const TypeFunc* multianewarray3_Type(); // multianewarray
1.236 + static const TypeFunc* multianewarray4_Type(); // multianewarray
1.237 + static const TypeFunc* multianewarray5_Type(); // multianewarray
1.238 + static const TypeFunc* complete_monitor_enter_Type();
1.239 + static const TypeFunc* complete_monitor_exit_Type();
1.240 + static const TypeFunc* uncommon_trap_Type();
1.241 + static const TypeFunc* athrow_Type();
1.242 + static const TypeFunc* rethrow_Type();
1.243 + static const TypeFunc* Math_D_D_Type(); // sin,cos & friends
1.244 + static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends
1.245 + static const TypeFunc* modf_Type();
1.246 + static const TypeFunc* l2f_Type();
1.247 + static const TypeFunc* current_time_millis_Type();
1.248 +
1.249 + static const TypeFunc* flush_windows_Type();
1.250 +
1.251 + // arraycopy routine types
1.252 + static const TypeFunc* fast_arraycopy_Type(); // bit-blasters
1.253 + static const TypeFunc* checkcast_arraycopy_Type();
1.254 + static const TypeFunc* generic_arraycopy_Type();
1.255 + static const TypeFunc* slow_arraycopy_Type(); // the full routine
1.256 +
1.257 + // leaf on stack replacement interpreter accessor types
1.258 + static const TypeFunc* osr_end_Type();
1.259 +
1.260 + // leaf methodData routine types
1.261 + static const TypeFunc* profile_receiver_type_Type();
1.262 +
1.263 + // leaf on stack replacement interpreter accessor types
1.264 + static const TypeFunc* fetch_int_Type();
1.265 + static const TypeFunc* fetch_long_Type();
1.266 + static const TypeFunc* fetch_float_Type();
1.267 + static const TypeFunc* fetch_double_Type();
1.268 + static const TypeFunc* fetch_oop_Type();
1.269 + static const TypeFunc* fetch_monitor_Type();
1.270 +
1.271 + static const TypeFunc* register_finalizer_Type();
1.272 +
1.273 + // Dtrace support
1.274 + static const TypeFunc* dtrace_method_entry_exit_Type();
1.275 + static const TypeFunc* dtrace_object_alloc_Type();
1.276 +
1.277 +# ifdef ENABLE_ZAP_DEAD_LOCALS
1.278 + static const TypeFunc* zap_dead_locals_Type();
1.279 +# endif
1.280 +
1.281 + private:
1.282 + static NamedCounter * volatile _named_counters;
1.283 +
1.284 + public:
1.285 + // helper function which creates a named counter labeled with the
1.286 + // if they are available
1.287 + static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag);
1.288 +
1.289 + // dumps all the named counters
1.290 + static void print_named_counters();
1.291 +
1.292 +};
