• file
• revisions
• annotate
• diff
• comparison
• raw

src/cpu/x86/vm/interpreterRT_x86_32.cpp@04d83ba48607 (annotated)

src/cpu/x86/vm/interpreterRT_x86_32.cpp

Thu, 24 May 2018 17:06:56 +0800

author

aoqi

date

Thu, 24 May 2018 17:06:56 +0800

changeset 8604

04d83ba48607

parent 6876

710a3c8b516e

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "interpreter/interpreter.hpp"
aoqi@0	27	#include "interpreter/interpreterRuntime.hpp"
aoqi@0	28	#include "memory/allocation.inline.hpp"
aoqi@0	29	#include "memory/universe.inline.hpp"
aoqi@0	30	#include "oops/method.hpp"
aoqi@0	31	#include "oops/oop.inline.hpp"
aoqi@0	32	#include "runtime/handles.inline.hpp"
aoqi@0	33	#include "runtime/icache.hpp"
aoqi@0	34	#include "runtime/interfaceSupport.hpp"
aoqi@0	35	#include "runtime/signature.hpp"
aoqi@0	36
aoqi@0	37
aoqi@0	38	#define __ _masm->
aoqi@0	39
aoqi@0	40
aoqi@0	41	// Implementation of SignatureHandlerGenerator
aoqi@0	42	void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
aoqi@0	43	move(offset(), jni_offset() + 1);
aoqi@0	44	}
aoqi@0	45
aoqi@0	46	void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
aoqi@0	47	move(offset(), jni_offset() + 1);
aoqi@0	48	}
aoqi@0	49
aoqi@0	50	void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
aoqi@0	51	move(offset(), jni_offset() + 2);
aoqi@0	52	move(offset() + 1, jni_offset() + 1);
aoqi@0	53	}
aoqi@0	54
aoqi@0	55	void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
aoqi@0	56	box (offset(), jni_offset() + 1);
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) {
aoqi@0	60	__ movl(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
aoqi@0	61	__ movl(Address(to(), to_offset * wordSize), temp());
aoqi@0	62	}
aoqi@0	63
aoqi@0	64
aoqi@0	65	void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) {
aoqi@0	66	__ lea(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
aoqi@0	67	__ cmpptr(Address(from(), Interpreter::local_offset_in_bytes(from_offset)), (int32_t)NULL_WORD); // do not use temp() to avoid AGI
aoqi@0	68	Label L;
aoqi@0	69	__ jcc(Assembler::notZero, L);
aoqi@0	70	__ movptr(temp(), NULL_WORD);
aoqi@0	71	__ bind(L);
aoqi@0	72	__ movptr(Address(to(), to_offset * wordSize), temp());
aoqi@0	73	}
aoqi@0	74
aoqi@0	75
aoqi@0	76	void InterpreterRuntime::SignatureHandlerGenerator::generate( uint64_t fingerprint) {
aoqi@0	77	// generate code to handle arguments
aoqi@0	78	iterate(fingerprint);
aoqi@0	79	// return result handler
aoqi@0	80	__ lea(rax,
aoqi@0	81	ExternalAddress((address)Interpreter::result_handler(method()->result_type())));
aoqi@0	82	// return
aoqi@0	83	__ ret(0);
aoqi@0	84	__ flush();
aoqi@0	85	}
aoqi@0	86
aoqi@0	87
aoqi@0	88	Register InterpreterRuntime::SignatureHandlerGenerator::from() { return rdi; }
aoqi@0	89	Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; }
aoqi@0	90	Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rcx; }
aoqi@0	91
aoqi@0	92
aoqi@0	93	// Implementation of SignatureHandlerLibrary
aoqi@0	94
aoqi@0	95	void SignatureHandlerLibrary::pd_set_handler(address handler) {}
aoqi@0	96
aoqi@0	97	class SlowSignatureHandler: public NativeSignatureIterator {
aoqi@0	98	private:
aoqi@0	99	address _from;
aoqi@0	100	intptr_t* _to;
aoqi@0	101
aoqi@0	102	virtual void pass_int() {
aoqi@0	103	*_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
aoqi@0	104	_from -= Interpreter::stackElementSize;
aoqi@0	105	}
aoqi@0	106
aoqi@0	107	virtual void pass_float() {
aoqi@0	108	*_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
aoqi@0	109	_from -= Interpreter::stackElementSize;
aoqi@0	110	}
aoqi@0	111
aoqi@0	112	virtual void pass_long() {
aoqi@0	113	_to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
aoqi@0	114	_to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));
aoqi@0	115	_to += 2;
aoqi@0	116	_from -= 2*Interpreter::stackElementSize;
aoqi@0	117	}
aoqi@0	118
aoqi@0	119	virtual void pass_object() {
aoqi@0	120	// pass address of from
aoqi@0	121	intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0));
aoqi@0	122	*_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr;
aoqi@0	123	_from -= Interpreter::stackElementSize;
aoqi@0	124	}
aoqi@0	125
aoqi@0	126	public:
aoqi@0	127	SlowSignatureHandler(methodHandle method, address from, intptr_t* to) :
aoqi@0	128	NativeSignatureIterator(method) {
aoqi@0	129	_from = from;
aoqi@0	130	_to = to + (is_static() ? 2 : 1);
aoqi@0	131	}
aoqi@0	132	};
aoqi@0	133
aoqi@0	134	IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(JavaThread* thread, Method* method, intptr_t* from, intptr_t* to))
aoqi@0	135	methodHandle m(thread, (Method*)method);
aoqi@0	136	assert(m->is_native(), "sanity check");
aoqi@0	137	// handle arguments
aoqi@0	138	SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1));
aoqi@0	139	// return result handler
aoqi@0	140	return Interpreter::result_handler(m->result_type());
aoqi@0	141	IRT_END