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src/cpu/zero/vm/interpreterRT_zero.hpp@f90c822e73f8 (annotated)

src/cpu/zero/vm/interpreterRT_zero.hpp

Wed, 27 Apr 2016 01:25:04 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:25:04 +0800

changeset 0

f90c822e73f8

child 6876

710a3c8b516e

permissions

-rw-r--r--

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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* Copyright 2007, 2008 Red Hat, Inc.
aoqi@0	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	5	*
aoqi@0	6	* This code is free software; you can redistribute it and/or modify it
aoqi@0	7	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	8	* published by the Free Software Foundation.
aoqi@0	9	*
aoqi@0	10	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	13	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	14	* accompanied this code).
aoqi@0	15	*
aoqi@0	16	* You should have received a copy of the GNU General Public License version
aoqi@0	17	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	19	*
aoqi@0	20	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	21	* or visit www.oracle.com if you need additional information or have any
aoqi@0	22	* questions.
aoqi@0	23	*
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	#ifndef CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP
aoqi@0	27	#define CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP
aoqi@0	28
aoqi@0	29	#include "memory/allocation.hpp"
aoqi@0	30
aoqi@0	31	class SignatureHandler {
aoqi@0	32	public:
aoqi@0	33	static SignatureHandler *from_handlerAddr(address handlerAddr) {
aoqi@0	34	return (SignatureHandler *) handlerAddr;
aoqi@0	35	}
aoqi@0	36
aoqi@0	37	public:
aoqi@0	38	ffi_cif* cif() const {
aoqi@0	39	return (ffi_cif *) this;
aoqi@0	40	}
aoqi@0	41
aoqi@0	42	int argument_count() const {
aoqi@0	43	return cif()->nargs;
aoqi@0	44	}
aoqi@0	45
aoqi@0	46	ffi_type** argument_types() const {
aoqi@0	47	return (ffi_type**) (cif() + 1);
aoqi@0	48	}
aoqi@0	49
aoqi@0	50	ffi_type* argument_type(int i) const {
aoqi@0	51	return argument_types()[i];
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	ffi_type* result_type() const {
aoqi@0	55	return *(argument_types() + argument_count());
aoqi@0	56	}
aoqi@0	57
aoqi@0	58	protected:
aoqi@0	59	friend class InterpreterRuntime;
aoqi@0	60	friend class SignatureHandlerLibrary;
aoqi@0	61
aoqi@0	62	void finalize();
aoqi@0	63	};
aoqi@0	64
aoqi@0	65	class SignatureHandlerGeneratorBase : public NativeSignatureIterator {
aoqi@0	66	private:
aoqi@0	67	ffi_cif* _cif;
aoqi@0	68
aoqi@0	69	protected:
aoqi@0	70	SignatureHandlerGeneratorBase(methodHandle method, ffi_cif *cif)
aoqi@0	71	: NativeSignatureIterator(method), _cif(cif) {
aoqi@0	72	_cif->nargs = 0;
aoqi@0	73	}
aoqi@0	74
aoqi@0	75	ffi_cif *cif() const {
aoqi@0	76	return _cif;
aoqi@0	77	}
aoqi@0	78
aoqi@0	79	public:
aoqi@0	80	void generate(uint64_t fingerprint);
aoqi@0	81
aoqi@0	82	private:
aoqi@0	83	void pass_int();
aoqi@0	84	void pass_long();
aoqi@0	85	void pass_float();
aoqi@0	86	void pass_double();
aoqi@0	87	void pass_object();
aoqi@0	88
aoqi@0	89	private:
aoqi@0	90	void push(BasicType type);
aoqi@0	91	virtual void push(intptr_t value) = 0;
aoqi@0	92	};
aoqi@0	93
aoqi@0	94	class SignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
aoqi@0	95	private:
aoqi@0	96	CodeBuffer* _cb;
aoqi@0	97
aoqi@0	98	public:
aoqi@0	99	SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer)
aoqi@0	100	: SignatureHandlerGeneratorBase(method, (ffi_cif *) buffer->insts_end()),
aoqi@0	101	_cb(buffer) {
aoqi@0	102	_cb->set_insts_end((address) (cif() + 1));
aoqi@0	103	}
aoqi@0	104
aoqi@0	105	private:
aoqi@0	106	void push(intptr_t value) {
aoqi@0	107	intptr_t *dst = (intptr_t *) _cb->insts_end();
aoqi@0	108	_cb->set_insts_end((address) (dst + 1));
aoqi@0	109	*dst = value;
aoqi@0	110	}
aoqi@0	111	};
aoqi@0	112
aoqi@0	113	class SlowSignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
aoqi@0	114	private:
aoqi@0	115	intptr_t *_dst;
aoqi@0	116
aoqi@0	117	public:
aoqi@0	118	SlowSignatureHandlerGenerator(methodHandle method, intptr_t* buf)
aoqi@0	119	: SignatureHandlerGeneratorBase(method, (ffi_cif *) buf) {
aoqi@0	120	_dst = (intptr_t *) (cif() + 1);
aoqi@0	121	}
aoqi@0	122
aoqi@0	123	private:
aoqi@0	124	void push(intptr_t value) {
aoqi@0	125	*(_dst++) = value;
aoqi@0	126	}
aoqi@0	127
aoqi@0	128	public:
aoqi@0	129	SignatureHandler *handler() const {
aoqi@0	130	return (SignatureHandler *) cif();
aoqi@0	131	}
aoqi@0	132	};
aoqi@0	133
aoqi@0	134	#endif // CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP