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src/cpu/zero/vm/interpreterRT_zero.cpp@a9becfeecd1b (annotated)

src/cpu/zero/vm/interpreterRT_zero.cpp

Wed, 22 Jan 2014 17:42:23 -0800

author

kvn

date

Wed, 22 Jan 2014 17:42:23 -0800

changeset 6503

a9becfeecd1b

parent 4037

da91efe96a93

child 6876

710a3c8b516e

permissions

-rw-r--r--

Merge

never@1445	1	/*
coleenp@4037	2	* Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
twisti@1814	3	* Copyright 2007, 2008, 2010 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	*
trims@1907	20	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	21	* or visit www.oracle.com if you need additional information or have any
trims@1907	22	* questions.
never@1445	23	*
never@1445	24	*/
never@1445	25
stefank@2314	26	#include "precompiled.hpp"
stefank@2314	27	#include "interpreter/interpreter.hpp"
stefank@2314	28	#include "interpreter/interpreterRuntime.hpp"
stefank@2314	29	#include "memory/allocation.inline.hpp"
stefank@2314	30	#include "memory/universe.inline.hpp"
coleenp@4037	31	#include "oops/method.hpp"
stefank@2314	32	#include "oops/oop.inline.hpp"
stefank@2314	33	#include "runtime/handles.inline.hpp"
stefank@2314	34	#include "runtime/icache.hpp"
stefank@2314	35	#include "runtime/interfaceSupport.hpp"
stefank@2314	36	#include "runtime/signature.hpp"
stefank@2314	37	#include "stack_zero.inline.hpp"
never@1445	38
never@1445	39	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_int() {
never@1445	40	push(T_INT);
never@1445	41	_cif->nargs++;
never@1445	42	}
never@1445	43
never@1445	44	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_long() {
never@1445	45	push(T_LONG);
never@1445	46	_cif->nargs++;
never@1445	47	}
never@1445	48
never@1445	49	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_float() {
never@1445	50	push(T_FLOAT);
never@1445	51	_cif->nargs++;
never@1445	52	}
never@1445	53
never@1445	54	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_double() {
never@1445	55	push(T_DOUBLE);
never@1445	56	_cif->nargs++;
never@1445	57	}
never@1445	58
never@1445	59	void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_object() {
never@1445	60	push(T_OBJECT);
never@1445	61	_cif->nargs++;
never@1445	62	}
never@1445	63
never@1445	64	void InterpreterRuntime::SignatureHandlerGeneratorBase::push(BasicType type) {
never@1445	65	ffi_type *ftype;
never@1445	66	switch (type) {
never@1445	67	case T_VOID:
never@1445	68	ftype = &ffi_type_void;
never@1445	69	break;
never@1445	70
never@1445	71	case T_BOOLEAN:
never@1445	72	ftype = &ffi_type_uint8;
never@1445	73	break;
never@1445	74
never@1445	75	case T_CHAR:
never@1445	76	ftype = &ffi_type_uint16;
never@1445	77	break;
never@1445	78
never@1445	79	case T_BYTE:
never@1445	80	ftype = &ffi_type_sint8;
never@1445	81	break;
never@1445	82
never@1445	83	case T_SHORT:
never@1445	84	ftype = &ffi_type_sint16;
never@1445	85	break;
never@1445	86
never@1445	87	case T_INT:
never@1445	88	ftype = &ffi_type_sint32;
never@1445	89	break;
never@1445	90
never@1445	91	case T_LONG:
never@1445	92	ftype = &ffi_type_sint64;
never@1445	93	break;
never@1445	94
never@1445	95	case T_FLOAT:
never@1445	96	ftype = &ffi_type_float;
never@1445	97	break;
never@1445	98
never@1445	99	case T_DOUBLE:
never@1445	100	ftype = &ffi_type_double;
never@1445	101	break;
never@1445	102
never@1445	103	case T_OBJECT:
never@1445	104	case T_ARRAY:
never@1445	105	ftype = &ffi_type_pointer;
never@1445	106	break;
never@1445	107
never@1445	108	default:
never@1445	109	ShouldNotReachHere();
never@1445	110	}
never@1445	111	push((intptr_t) ftype);
never@1445	112	}
never@1445	113
never@1445	114	// For fast signature handlers the "signature handler" is generated
never@1445	115	// into a temporary buffer. It is then copied to its final location,
never@1445	116	// and pd_set_handler is called on it. We have this two stage thing
never@1445	117	// to accomodate this.
never@1445	118
never@1445	119	void InterpreterRuntime::SignatureHandlerGeneratorBase::generate(
never@1445	120	uint64_t fingerprint) {
never@1445	121
never@1445	122	// Build the argument types list
never@1445	123	pass_object();
never@1445	124	if (method()->is_static())
never@1445	125	pass_object();
never@1445	126	iterate(fingerprint);
never@1445	127
never@1445	128	// Tack on the result type
never@1445	129	push(method()->result_type());
never@1445	130	}
never@1445	131
never@1445	132	void InterpreterRuntime::SignatureHandler::finalize() {
never@1445	133	ffi_status status =
never@1445	134	ffi_prep_cif(cif(),
never@1445	135	FFI_DEFAULT_ABI,
never@1445	136	argument_count(),
never@1445	137	result_type(),
never@1445	138	argument_types());
never@1445	139
never@1445	140	assert(status == FFI_OK, "should be");
never@1445	141	}
never@1445	142
never@1445	143	IRT_ENTRY(address,
never@1445	144	InterpreterRuntime::slow_signature_handler(JavaThread* thread,
coleenp@4037	145	Method* method,
never@1445	146	intptr_t* unused1,
never@1445	147	intptr_t* unused2))
never@1445	148	ZeroStack *stack = thread->zero_stack();
never@1445	149
never@1445	150	int required_words =
never@1445	151	(align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) +
never@1445	152	(method->is_static() ? 2 : 1) + method->size_of_parameters() + 1;
twisti@1814	153
twisti@1814	154	stack->overflow_check(required_words, CHECK_NULL);
never@1445	155
never@1445	156	intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize);
never@1445	157	SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf);
never@1445	158	sshg.generate(UCONST64(-1));
never@1445	159
never@1445	160	SignatureHandler *handler = sshg.handler();
never@1445	161	handler->finalize();
never@1445	162
never@1445	163	return (address) handler;
never@1445	164	IRT_END
never@1445	165
never@1445	166	void SignatureHandlerLibrary::pd_set_handler(address handlerAddr) {
never@1445	167	InterpreterRuntime::SignatureHandler *handler =
never@1445	168	InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr);
never@1445	169
never@1445	170	handler->finalize();
never@1445	171	}