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

src/cpu/zero/vm/interpreterRT_zero.cpp

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--

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

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* Copyright 2007, 2008, 2010 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	#include "precompiled.hpp"
aoqi@0	27	#include "interpreter/interpreter.hpp"
aoqi@0	28	#include "interpreter/interpreterRuntime.hpp"
aoqi@0	29	#include "memory/allocation.inline.hpp"
aoqi@0	30	#include "memory/universe.inline.hpp"
aoqi@0	31	#include "oops/method.hpp"
aoqi@0	32	#include "oops/oop.inline.hpp"
aoqi@0	33	#include "runtime/handles.inline.hpp"
aoqi@0	34	#include "runtime/icache.hpp"
aoqi@0	35	#include "runtime/interfaceSupport.hpp"
aoqi@0	36	#include "runtime/signature.hpp"
aoqi@0	37	#include "stack_zero.inline.hpp"
aoqi@0	38
aoqi@0	39	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_int() {
aoqi@0	40	push(T_INT);
aoqi@0	41	_cif->nargs++;
aoqi@0	42	}
aoqi@0	43
aoqi@0	44	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_long() {
aoqi@0	45	push(T_LONG);
aoqi@0	46	_cif->nargs++;
aoqi@0	47	}
aoqi@0	48
aoqi@0	49	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_float() {
aoqi@0	50	push(T_FLOAT);
aoqi@0	51	_cif->nargs++;
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_double() {
aoqi@0	55	push(T_DOUBLE);
aoqi@0	56	_cif->nargs++;
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_object() {
aoqi@0	60	push(T_OBJECT);
aoqi@0	61	_cif->nargs++;
aoqi@0	62	}
aoqi@0	63
aoqi@0	64	void InterpreterRuntime::SignatureHandlerGeneratorBase::push(BasicType type) {
aoqi@0	65	ffi_type *ftype;
aoqi@0	66	switch (type) {
aoqi@0	67	case T_VOID:
aoqi@0	68	ftype = &ffi_type_void;
aoqi@0	69	break;
aoqi@0	70
aoqi@0	71	case T_BOOLEAN:
aoqi@0	72	ftype = &ffi_type_uint8;
aoqi@0	73	break;
aoqi@0	74
aoqi@0	75	case T_CHAR:
aoqi@0	76	ftype = &ffi_type_uint16;
aoqi@0	77	break;
aoqi@0	78
aoqi@0	79	case T_BYTE:
aoqi@0	80	ftype = &ffi_type_sint8;
aoqi@0	81	break;
aoqi@0	82
aoqi@0	83	case T_SHORT:
aoqi@0	84	ftype = &ffi_type_sint16;
aoqi@0	85	break;
aoqi@0	86
aoqi@0	87	case T_INT:
aoqi@0	88	ftype = &ffi_type_sint32;
aoqi@0	89	break;
aoqi@0	90
aoqi@0	91	case T_LONG:
aoqi@0	92	ftype = &ffi_type_sint64;
aoqi@0	93	break;
aoqi@0	94
aoqi@0	95	case T_FLOAT:
aoqi@0	96	ftype = &ffi_type_float;
aoqi@0	97	break;
aoqi@0	98
aoqi@0	99	case T_DOUBLE:
aoqi@0	100	ftype = &ffi_type_double;
aoqi@0	101	break;
aoqi@0	102
aoqi@0	103	case T_OBJECT:
aoqi@0	104	case T_ARRAY:
aoqi@0	105	ftype = &ffi_type_pointer;
aoqi@0	106	break;
aoqi@0	107
aoqi@0	108	default:
aoqi@0	109	ShouldNotReachHere();
aoqi@0	110	}
aoqi@0	111	push((intptr_t) ftype);
aoqi@0	112	}
aoqi@0	113
aoqi@0	114	// For fast signature handlers the "signature handler" is generated
aoqi@0	115	// into a temporary buffer. It is then copied to its final location,
aoqi@0	116	// and pd_set_handler is called on it. We have this two stage thing
aoqi@0	117	// to accomodate this.
aoqi@0	118
aoqi@0	119	void InterpreterRuntime::SignatureHandlerGeneratorBase::generate(
aoqi@0	120	uint64_t fingerprint) {
aoqi@0	121
aoqi@0	122	// Build the argument types list
aoqi@0	123	pass_object();
aoqi@0	124	if (method()->is_static())
aoqi@0	125	pass_object();
aoqi@0	126	iterate(fingerprint);
aoqi@0	127
aoqi@0	128	// Tack on the result type
aoqi@0	129	push(method()->result_type());
aoqi@0	130	}
aoqi@0	131
aoqi@0	132	void InterpreterRuntime::SignatureHandler::finalize() {
aoqi@0	133	ffi_status status =
aoqi@0	134	ffi_prep_cif(cif(),
aoqi@0	135	FFI_DEFAULT_ABI,
aoqi@0	136	argument_count(),
aoqi@0	137	result_type(),
aoqi@0	138	argument_types());
aoqi@0	139
aoqi@0	140	assert(status == FFI_OK, "should be");
aoqi@0	141	}
aoqi@0	142
aoqi@0	143	IRT_ENTRY(address,
aoqi@0	144	InterpreterRuntime::slow_signature_handler(JavaThread* thread,
aoqi@0	145	Method* method,
aoqi@0	146	intptr_t* unused1,
aoqi@0	147	intptr_t* unused2))
aoqi@0	148	ZeroStack *stack = thread->zero_stack();
aoqi@0	149
aoqi@0	150	int required_words =
aoqi@0	151	(align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) +
aoqi@0	152	(method->is_static() ? 2 : 1) + method->size_of_parameters() + 1;
aoqi@0	153
aoqi@0	154	stack->overflow_check(required_words, CHECK_NULL);
aoqi@0	155
aoqi@0	156	intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize);
aoqi@0	157	SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf);
aoqi@0	158	sshg.generate(UCONST64(-1));
aoqi@0	159
aoqi@0	160	SignatureHandler *handler = sshg.handler();
aoqi@0	161	handler->finalize();
aoqi@0	162
aoqi@0	163	return (address) handler;
aoqi@0	164	IRT_END
aoqi@0	165
aoqi@0	166	void SignatureHandlerLibrary::pd_set_handler(address handlerAddr) {
aoqi@0	167	InterpreterRuntime::SignatureHandler *handler =
aoqi@0	168	InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr);
aoqi@0	169
aoqi@0	170	handler->finalize();
aoqi@0	171	}