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src/cpu/x86/vm/jniTypes_x86.hpp@d8ce2825b193 (annotated)

src/cpu/x86/vm/jniTypes_x86.hpp

Sat, 29 Sep 2012 06:40:00 -0400

author

coleenp

date

Sat, 29 Sep 2012 06:40:00 -0400

changeset 4142

d8ce2825b193

parent 2314

f95d63e2154a

child 6876

710a3c8b516e

permissions

-rw-r--r--

8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
Summary: Capitalize these metadata types (and objArrayKlass)
Reviewed-by: stefank, twisti, kvn

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef CPU_X86_VM_JNITYPES_X86_HPP
stefank@2314	26	#define CPU_X86_VM_JNITYPES_X86_HPP
stefank@2314	27
stefank@2314	28	#include "memory/allocation.hpp"
stefank@2314	29	#include "oops/oop.hpp"
stefank@2314	30	#include "prims/jni.h"
stefank@2314	31
duke@435	32	// This file holds platform-dependent routines used to write primitive jni
duke@435	33	// types to the array of arguments passed into JavaCalls::call
duke@435	34
duke@435	35	class JNITypes : AllStatic {
duke@435	36	// These functions write a java primitive type (in native format)
duke@435	37	// to a java stack slot array to be passed as an argument to JavaCalls:calls.
duke@435	38	// I.e., they are functionally 'push' operations if they have a 'pos'
duke@435	39	// formal parameter. Note that jlong's and jdouble's are written
duke@435	40	// _in reverse_ of the order in which they appear in the interpreter
duke@435	41	// stack. This is because call stubs (see stubGenerator_sparc.cpp)
duke@435	42	// reverse the argument list constructed by JavaCallArguments (see
duke@435	43	// javaCalls.hpp).
duke@435	44
duke@435	45	private:
duke@435	46
duke@435	47	#ifndef AMD64
duke@435	48	// 32bit Helper routines.
duke@435	49	static inline void put_int2r(jint *from, intptr_t *to) { *(jint *)(to++) = from[1];
duke@435	50	*(jint *)(to ) = from[0]; }
duke@435	51	static inline void put_int2r(jint *from, intptr_t *to, int& pos) { put_int2r(from, to + pos); pos += 2; }
duke@435	52	#endif // AMD64
duke@435	53
duke@435	54	public:
duke@435	55	// Ints are stored in native format in one JavaCallArgument slot at *to.
duke@435	56	static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; }
duke@435	57	static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; }
duke@435	58	static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; }
duke@435	59
duke@435	60	#ifdef AMD64
duke@435	61	// Longs are stored in native format in one JavaCallArgument slot at
duke@435	62	// *(to+1).
duke@435	63	static inline void put_long(jlong from, intptr_t *to) {
duke@435	64	*(jlong*) (to + 1) = from;
duke@435	65	}
duke@435	66
duke@435	67	static inline void put_long(jlong from, intptr_t *to, int& pos) {
duke@435	68	*(jlong*) (to + 1 + pos) = from;
duke@435	69	pos += 2;
duke@435	70	}
duke@435	71
duke@435	72	static inline void put_long(jlong *from, intptr_t *to, int& pos) {
duke@435	73	*(jlong*) (to + 1 + pos) = *from;
duke@435	74	pos += 2;
duke@435	75	}
duke@435	76	#else
duke@435	77	// Longs are stored in big-endian word format in two JavaCallArgument slots at *to.
duke@435	78	// The high half is in *to and the low half in *(to+1).
duke@435	79	static inline void put_long(jlong from, intptr_t *to) { put_int2r((jint *)&from, to); }
duke@435	80	static inline void put_long(jlong from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); }
duke@435	81	static inline void put_long(jlong *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); }
duke@435	82	#endif // AMD64
duke@435	83
duke@435	84	// Oops are stored in native format in one JavaCallArgument slot at *to.
duke@435	85	static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; }
duke@435	86	static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; }
duke@435	87	static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; }
duke@435	88
duke@435	89	// Floats are stored in native format in one JavaCallArgument slot at *to.
duke@435	90	static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; }
duke@435	91	static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; }
duke@435	92	static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; }
duke@435	93
duke@435	94	#undef _JNI_SLOT_OFFSET
duke@435	95	#ifdef AMD64
duke@435	96	#define _JNI_SLOT_OFFSET 1
duke@435	97	// Doubles are stored in native word format in one JavaCallArgument
duke@435	98	// slot at *(to+1).
duke@435	99	static inline void put_double(jdouble from, intptr_t *to) {
duke@435	100	*(jdouble*) (to + 1) = from;
duke@435	101	}
duke@435	102
duke@435	103	static inline void put_double(jdouble from, intptr_t *to, int& pos) {
duke@435	104	*(jdouble*) (to + 1 + pos) = from;
duke@435	105	pos += 2;
duke@435	106	}
duke@435	107
duke@435	108	static inline void put_double(jdouble *from, intptr_t *to, int& pos) {
duke@435	109	*(jdouble*) (to + 1 + pos) = *from;
duke@435	110	pos += 2;
duke@435	111	}
duke@435	112	#else
duke@435	113	#define _JNI_SLOT_OFFSET 0
duke@435	114	// Doubles are stored in big-endian word format in two JavaCallArgument slots at *to.
duke@435	115	// The high half is in *to and the low half in *(to+1).
duke@435	116	static inline void put_double(jdouble from, intptr_t *to) { put_int2r((jint *)&from, to); }
duke@435	117	static inline void put_double(jdouble from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); }
duke@435	118	static inline void put_double(jdouble *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); }
duke@435	119	#endif // AMD64
duke@435	120
duke@435	121
duke@435	122	// The get_xxx routines, on the other hand, actually _do_ fetch
duke@435	123	// java primitive types from the interpreter stack.
duke@435	124	// No need to worry about alignment on Intel.
duke@435	125	static inline jint get_int (intptr_t *from) { return *(jint *) from; }
duke@435	126	static inline jlong get_long (intptr_t *from) { return *(jlong *) (from + _JNI_SLOT_OFFSET); }
duke@435	127	static inline oop get_obj (intptr_t *from) { return *(oop *) from; }
duke@435	128	static inline jfloat get_float (intptr_t *from) { return *(jfloat *) from; }
duke@435	129	static inline jdouble get_double(intptr_t *from) { return *(jdouble *)(from + _JNI_SLOT_OFFSET); }
duke@435	130	#undef _JNI_SLOT_OFFSET
duke@435	131	};
stefank@2314	132
stefank@2314	133	#endif // CPU_X86_VM_JNITYPES_X86_HPP