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J. Duke 2007-12-01 00:00:00 +00:00
parent 686d76f772
commit 8153779ad3
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hotspot/src/share/vm/interpreter/interpreterRuntime.hpp Normal file
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/*
* Copyright 1997-2007 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.
*
*/
// The InterpreterRuntime is called by the interpreter for everything
// that cannot/should not be dealt with in assembly and needs C support.
class InterpreterRuntime: AllStatic {
friend class BytecodeClosure; // for method and bcp
friend class PrintingClosure; // for method and bcp
private:
// Helper functions to access current interpreter state
static frame last_frame(JavaThread *thread) { return thread->last_frame(); }
static methodOop method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); }
static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); }
static void set_bcp_and_mdp(address bcp, JavaThread*thread);
static Bytecodes::Code code(JavaThread *thread) { return Bytecodes::code_at(bcp(thread)); }
static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
static int one_byte_index(JavaThread *thread) { return bcp(thread)[1]; }
static int two_byte_index(JavaThread *thread) { return Bytes::get_Java_u2(bcp(thread) + 1); }
static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return method(thread)->constants()->cache()->entry_at(Bytes::get_native_u2(bcp(thread) + 1)); }
static void note_trap(JavaThread *thread, int reason, TRAPS);
public:
// Constants
static void ldc (JavaThread* thread, bool wide);
// Allocation
static void _new (JavaThread* thread, constantPoolOopDesc* pool, int index);
static void newarray (JavaThread* thread, BasicType type, jint size);
static void anewarray (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size);
static void multianewarray(JavaThread* thread, jint* first_size_address);
static void register_finalizer(JavaThread* thread, oopDesc* obj);
// Quicken instance-of and check-cast bytecodes
static void quicken_io_cc(JavaThread* thread);
// Exceptions thrown by the interpreter
static void throw_AbstractMethodError(JavaThread* thread);
static void throw_IncompatibleClassChangeError(JavaThread* thread);
static void throw_StackOverflowError(JavaThread* thread);
static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
static void create_exception(JavaThread* thread, char* name, char* message);
static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
static void throw_pending_exception(JavaThread* thread);
// Statics & fields
static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
// Synchronization
static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
static void throw_illegal_monitor_state_exception(JavaThread* thread);
static void new_illegal_monitor_state_exception(JavaThread* thread);
// Calls
static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
// Breakpoints
static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
static void set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
// Safepoints
static void at_safepoint(JavaThread* thread);
// Debugger support
static void post_field_access(JavaThread *thread, oopDesc* obj,
ConstantPoolCacheEntry *cp_entry);
static void post_field_modification(JavaThread *thread, oopDesc* obj,
ConstantPoolCacheEntry *cp_entry, jvalue *value);
static void post_method_entry(JavaThread *thread);
static void post_method_exit (JavaThread *thread);
static int interpreter_contains(address pc);
// Native signature handlers
static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
static address slow_signature_handler(JavaThread* thread,
methodOopDesc* method,
intptr_t* from, intptr_t* to);
#if defined(IA32) || defined(AMD64)
// Popframe support (only needed on x86 and AMD64)
static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
#endif
// Platform dependent stuff
#include "incls/_interpreterRT_pd.hpp.incl"
// Interpreter's frequency counter overflow
static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
// Interpreter profiling support
static jint bcp_to_di(methodOopDesc* method, address cur_bcp);
static jint profile_method(JavaThread* thread, address cur_bcp);
static void update_mdp_for_ret(JavaThread* thread, int bci);
#ifdef ASSERT
static void verify_mdp(methodOopDesc* method, address bcp, address mdp);
#endif // ASSERT
};
class SignatureHandlerLibrary: public AllStatic {
public:
enum { buffer_size = 1*K }; // the size of the temporary code buffer
enum { blob_size = 32*K }; // the size of a handler code blob.
private:
static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
static address _handler; // next available address within _handler_blob;
static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
static GrowableArray<address>* _handlers; // the corresponding handlers
static address _buffer; // the temporary code buffer
static address set_handler_blob();
static void initialize();
static address set_handler(CodeBuffer* buffer);
static void pd_set_handler(address handler);
public:
static void add(methodHandle method);
};