--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/opto/runtime.hpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,289 @@
+/*
+ * Copyright 1998-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+//------------------------------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
+ };
+
+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, "already set");
+ _next = next;
+ }
+
+};
+
+class BiasedLockingNamedCounter : public NamedCounter {
+ private:
+ BiasedLockingCounters _counters;
+
+ public:
+ BiasedLockingNamedCounter(const char *n) :
+ NamedCounter(n, BiasedLockingCounter), _counters() {}
+
+ BiasedLockingCounters* 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 _multianewarray2_Java;
+ static address _multianewarray3_Java;
+ static address _multianewarray4_Java;
+ static address _multianewarray5_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(klassOopDesc* instance_klass, JavaThread *thread);
+
+ // Allocate storage for a objArray or typeArray
+ static void new_array_C(klassOopDesc* array_klass, int len, JavaThread *thread);
+
+ // Post-allocation step for implementing ReduceInitialCardMarks:
+ static void do_eager_card_mark(JavaThread* thread);
+
+ // Allocate storage for a multi-dimensional arrays
+ // Note: needs to be fixed for arbitrary number of dimensions
+ static void multianewarray2_C(klassOopDesc* klass, int len1, int len2, JavaThread *thread);
+ static void multianewarray3_C(klassOopDesc* klass, int len1, int len2, int len3, JavaThread *thread);
+ static void multianewarray4_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, JavaThread *thread);
+ static void multianewarray5_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, int len5, 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, bool doit);
+
+ // 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
+ static void 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 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 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* 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* current_time_millis_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
+
+ // 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();
+
+};