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src/cpu/zero/vm/interpreterRT_zero.hpp@354d3184f6b2 (annotated)

src/cpu/zero/vm/interpreterRT_zero.hpp

Tue, 13 Oct 2009 12:04:21 -0700

author

never

date

Tue, 13 Oct 2009 12:04:21 -0700

changeset 1445

354d3184f6b2

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6890308: integrate zero assembler hotspot changes
Reviewed-by: never
Contributed-by: gbenson@redhat.com

never@1445	1	/*
never@1445	2	* Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
never@1445	3	* Copyright 2007, 2008 Red Hat, Inc.
never@1445	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@1445	5	*
never@1445	6	* This code is free software; you can redistribute it and/or modify it
never@1445	7	* under the terms of the GNU General Public License version 2 only, as
never@1445	8	* published by the Free Software Foundation.
never@1445	9	*
never@1445	10	* This code is distributed in the hope that it will be useful, but WITHOUT
never@1445	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@1445	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
never@1445	13	* version 2 for more details (a copy is included in the LICENSE file that
never@1445	14	* accompanied this code).
never@1445	15	*
never@1445	16	* You should have received a copy of the GNU General Public License version
never@1445	17	* 2 along with this work; if not, write to the Free Software Foundation,
never@1445	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@1445	19	*
never@1445	20	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
never@1445	21	* CA 95054 USA or visit www.sun.com if you need additional information or
never@1445	22	* have any questions.
never@1445	23	*
never@1445	24	*/
never@1445	25
never@1445	26	class SignatureHandler {
never@1445	27	public:
never@1445	28	static SignatureHandler *from_handlerAddr(address handlerAddr) {
never@1445	29	return (SignatureHandler *) handlerAddr;
never@1445	30	}
never@1445	31
never@1445	32	public:
never@1445	33	ffi_cif* cif() const {
never@1445	34	return (ffi_cif *) this;
never@1445	35	}
never@1445	36
never@1445	37	int argument_count() const {
never@1445	38	return cif()->nargs;
never@1445	39	}
never@1445	40
never@1445	41	ffi_type** argument_types() const {
never@1445	42	return (ffi_type**) (cif() + 1);
never@1445	43	}
never@1445	44
never@1445	45	ffi_type* argument_type(int i) const {
never@1445	46	return argument_types()[i];
never@1445	47	}
never@1445	48
never@1445	49	ffi_type* result_type() const {
never@1445	50	return *(argument_types() + argument_count());
never@1445	51	}
never@1445	52
never@1445	53	protected:
never@1445	54	friend class InterpreterRuntime;
never@1445	55	friend class SignatureHandlerLibrary;
never@1445	56
never@1445	57	void finalize();
never@1445	58	};
never@1445	59
never@1445	60	class SignatureHandlerGeneratorBase : public NativeSignatureIterator {
never@1445	61	private:
never@1445	62	ffi_cif* _cif;
never@1445	63
never@1445	64	protected:
never@1445	65	SignatureHandlerGeneratorBase(methodHandle method, ffi_cif *cif)
never@1445	66	: NativeSignatureIterator(method), _cif(cif) {
never@1445	67	_cif->nargs = 0;
never@1445	68	}
never@1445	69
never@1445	70	ffi_cif *cif() const {
never@1445	71	return _cif;
never@1445	72	}
never@1445	73
never@1445	74	public:
never@1445	75	void generate(uint64_t fingerprint);
never@1445	76
never@1445	77	private:
never@1445	78	void pass_int();
never@1445	79	void pass_long();
never@1445	80	void pass_float();
never@1445	81	void pass_double();
never@1445	82	void pass_object();
never@1445	83
never@1445	84	private:
never@1445	85	void push(BasicType type);
never@1445	86	virtual void push(intptr_t value) = 0;
never@1445	87	};
never@1445	88
never@1445	89	class SignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
never@1445	90	private:
never@1445	91	CodeBuffer* _cb;
never@1445	92
never@1445	93	public:
never@1445	94	SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer)
never@1445	95	: SignatureHandlerGeneratorBase(method, (ffi_cif *) buffer->code_end()),
never@1445	96	_cb(buffer) {
never@1445	97	_cb->set_code_end((address) (cif() + 1));
never@1445	98	}
never@1445	99
never@1445	100	private:
never@1445	101	void push(intptr_t value) {
never@1445	102	intptr_t *dst = (intptr_t *) _cb->code_end();
never@1445	103	_cb->set_code_end((address) (dst + 1));
never@1445	104	*dst = value;
never@1445	105	}
never@1445	106	};
never@1445	107
never@1445	108	class SlowSignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
never@1445	109	private:
never@1445	110	intptr_t *_dst;
never@1445	111
never@1445	112	public:
never@1445	113	SlowSignatureHandlerGenerator(methodHandle method, intptr_t* buf)
never@1445	114	: SignatureHandlerGeneratorBase(method, (ffi_cif *) buf) {
never@1445	115	_dst = (intptr_t *) (cif() + 1);
never@1445	116	}
never@1445	117
never@1445	118	private:
never@1445	119	void push(intptr_t value) {
never@1445	120	*(_dst++) = value;
never@1445	121	}
never@1445	122
never@1445	123	public:
never@1445	124	SignatureHandler *handler() const {
never@1445	125	return (SignatureHandler *) cif();
never@1445	126	}
never@1445	127	};