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src/cpu/ppc/vm/jniTypes_ppc.hpp@41b780b43b74 (annotated)

src/cpu/ppc/vm/jniTypes_ppc.hpp

Wed, 27 Nov 2013 16:16:21 -0800

author

goetz

date

Wed, 27 Nov 2013 16:16:21 -0800

changeset 6490

41b780b43b74

parent 0

f90c822e73f8

permissions

-rw-r--r--

8029015: PPC64 (part 216): opto: trap based null and range checks
Summary: On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks.
Reviewed-by: kvn

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* Copyright 2012, 2013 SAP AG. All rights reserved.
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	#ifndef CPU_PPC_VM_JNITYPES_PPC_HPP
aoqi@0	27	#define CPU_PPC_VM_JNITYPES_PPC_HPP
aoqi@0	28
aoqi@0	29	#include "memory/allocation.hpp"
aoqi@0	30	#include "oops/oop.hpp"
aoqi@0	31	#include "prims/jni.h"
aoqi@0	32
aoqi@0	33	// This file holds platform-dependent routines used to write primitive
aoqi@0	34	// jni types to the array of arguments passed into JavaCalls::call.
aoqi@0	35
aoqi@0	36	class JNITypes : AllStatic {
aoqi@0	37	// These functions write a java primitive type (in native format) to
aoqi@0	38	// a java stack slot array to be passed as an argument to
aoqi@0	39	// JavaCalls:calls. I.e., they are functionally 'push' operations
aoqi@0	40	// if they have a 'pos' formal parameter. Note that jlong's and
aoqi@0	41	// jdouble's are written _in reverse_ of the order in which they
aoqi@0	42	// appear in the interpreter stack. This is because call stubs (see
aoqi@0	43	// stubGenerator_sparc.cpp) reverse the argument list constructed by
aoqi@0	44	// JavaCallArguments (see javaCalls.hpp).
aoqi@0	45
aoqi@0	46	private:
aoqi@0	47
aoqi@0	48	#ifndef PPC64
aoqi@0	49	#error "ppc32 support currently not implemented!!!"
aoqi@0	50	#endif // PPC64
aoqi@0	51
aoqi@0	52	public:
aoqi@0	53	// Ints are stored in native format in one JavaCallArgument slot at *to.
aoqi@0	54	static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; }
aoqi@0	55	static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; }
aoqi@0	56	static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; }
aoqi@0	57
aoqi@0	58	// Longs are stored in native format in one JavaCallArgument slot at
aoqi@0	59	// *(to+1).
aoqi@0	60	static inline void put_long(jlong from, intptr_t *to) {
aoqi@0	61	*(jlong*) (to + 1) = from;
aoqi@0	62	}
aoqi@0	63
aoqi@0	64	static inline void put_long(jlong from, intptr_t *to, int& pos) {
aoqi@0	65	*(jlong*) (to + 1 + pos) = from;
aoqi@0	66	pos += 2;
aoqi@0	67	}
aoqi@0	68
aoqi@0	69	static inline void put_long(jlong *from, intptr_t *to, int& pos) {
aoqi@0	70	*(jlong*) (to + 1 + pos) = *from;
aoqi@0	71	pos += 2;
aoqi@0	72	}
aoqi@0	73
aoqi@0	74	// Oops are stored in native format in one JavaCallArgument slot at *to.
aoqi@0	75	static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; }
aoqi@0	76	static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; }
aoqi@0	77	static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; }
aoqi@0	78
aoqi@0	79	// Floats are stored in native format in one JavaCallArgument slot at *to.
aoqi@0	80	static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; }
aoqi@0	81	static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; }
aoqi@0	82	static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; }
aoqi@0	83
aoqi@0	84	// Doubles are stored in native word format in one JavaCallArgument
aoqi@0	85	// slot at *(to+1).
aoqi@0	86	static inline void put_double(jdouble from, intptr_t *to) {
aoqi@0	87	*(jdouble*) (to + 1) = from;
aoqi@0	88	}
aoqi@0	89
aoqi@0	90	static inline void put_double(jdouble from, intptr_t *to, int& pos) {
aoqi@0	91	*(jdouble*) (to + 1 + pos) = from;
aoqi@0	92	pos += 2;
aoqi@0	93	}
aoqi@0	94
aoqi@0	95	static inline void put_double(jdouble *from, intptr_t *to, int& pos) {
aoqi@0	96	*(jdouble*) (to + 1 + pos) = *from;
aoqi@0	97	pos += 2;
aoqi@0	98	}
aoqi@0	99
aoqi@0	100	// The get_xxx routines, on the other hand, actually _do_ fetch
aoqi@0	101	// java primitive types from the interpreter stack.
aoqi@0	102	// No need to worry about alignment on Intel.
aoqi@0	103	static inline jint get_int (intptr_t *from) { return *(jint *) from; }
aoqi@0	104	static inline jlong get_long (intptr_t *from) { return *(jlong *) (from + 1); }
aoqi@0	105	static inline oop get_obj (intptr_t *from) { return *(oop *) from; }
aoqi@0	106	static inline jfloat get_float (intptr_t *from) { return *(jfloat *) from; }
aoqi@0	107	static inline jdouble get_double(intptr_t *from) { return *(jdouble *)(from + 1); }
aoqi@0	108	};
aoqi@0	109
aoqi@0	110	#endif // CPU_PPC_VM_JNITYPES_PPC_HPP