1 /*
2 * Copyright (c) 1998, 2002, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 // This file holds platform-dependent routines used to write primitive jni
26 // types to the array of arguments passed into JavaCalls::call
27
28 class JNITypes : AllStatic {
29 // These functions write a java primitive type (in native format)
30 // to a java stack slot array to be passed as an argument to JavaCalls:calls.
31 // I.e., they are functionally 'push' operations if they have a 'pos'
32 // formal parameter. Note that jlong's and jdouble's are written
33 // _in reverse_ of the order in which they appear in the interpreter
34 // stack. This is because call stubs (see stubGenerator_sparc.cpp)
35 // reverse the argument list constructed by JavaCallArguments (see
36 // javaCalls.hpp).
37
38 private:
39 // Helper routines.
40 static inline void put_int2 (jint *from, jint *to) { to[0] = from[0]; to[1] = from[1]; }
41 static inline void put_int2 (jint *from, jint *to, int& pos) { put_int2 (from, (jint *)((intptr_t *)to + pos)); pos += 2; }
42 static inline void put_int2r(jint *from, jint *to) { to[0] = from[1]; to[1] = from[0]; }
43 static inline void put_int2r(jint *from, jint *to, int& pos) { put_int2r(from, (jint *)((intptr_t *)to + pos)); pos += 2; }
44
89
90 #ifdef _LP64
91 static inline jlong get_long(intptr_t *from) { return *(jlong *)from; }
92 #else
93 static inline jlong get_long(intptr_t *from) { return ((jlong)(*( signed int *)((jint *)from )) << 32) |
94 ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0); }
95 #endif
96
97 static inline oop get_obj(intptr_t *from) { return *(oop *)from; }
98 static inline jfloat get_float(intptr_t *from) { return *(jfloat *)from; }
99
100 #ifdef _LP64
101 static inline jdouble get_double(intptr_t *from) { return *(jdouble *)from; }
102 #else
103 static inline jdouble get_double(intptr_t *from) { jlong jl = ((jlong)(*( signed int *)((jint *)from )) << 32) |
104 ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0);
105 return *(jdouble *)&jl; }
106 #endif
107
108 };
|
1 /*
2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef CPU_SPARC_VM_JNITYPES_SPARC_HPP
26 #define CPU_SPARC_VM_JNITYPES_SPARC_HPP
27
28 #include "memory/allocation.hpp"
29 #include "oops/oop.hpp"
30 #include "prims/jni.h"
31
32 // This file holds platform-dependent routines used to write primitive jni
33 // types to the array of arguments passed into JavaCalls::call
34
35 class JNITypes : AllStatic {
36 // These functions write a java primitive type (in native format)
37 // to a java stack slot array to be passed as an argument to JavaCalls:calls.
38 // I.e., they are functionally 'push' operations if they have a 'pos'
39 // formal parameter. Note that jlong's and jdouble's are written
40 // _in reverse_ of the order in which they appear in the interpreter
41 // stack. This is because call stubs (see stubGenerator_sparc.cpp)
42 // reverse the argument list constructed by JavaCallArguments (see
43 // javaCalls.hpp).
44
45 private:
46 // Helper routines.
47 static inline void put_int2 (jint *from, jint *to) { to[0] = from[0]; to[1] = from[1]; }
48 static inline void put_int2 (jint *from, jint *to, int& pos) { put_int2 (from, (jint *)((intptr_t *)to + pos)); pos += 2; }
49 static inline void put_int2r(jint *from, jint *to) { to[0] = from[1]; to[1] = from[0]; }
50 static inline void put_int2r(jint *from, jint *to, int& pos) { put_int2r(from, (jint *)((intptr_t *)to + pos)); pos += 2; }
51
96
97 #ifdef _LP64
98 static inline jlong get_long(intptr_t *from) { return *(jlong *)from; }
99 #else
100 static inline jlong get_long(intptr_t *from) { return ((jlong)(*( signed int *)((jint *)from )) << 32) |
101 ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0); }
102 #endif
103
104 static inline oop get_obj(intptr_t *from) { return *(oop *)from; }
105 static inline jfloat get_float(intptr_t *from) { return *(jfloat *)from; }
106
107 #ifdef _LP64
108 static inline jdouble get_double(intptr_t *from) { return *(jdouble *)from; }
109 #else
110 static inline jdouble get_double(intptr_t *from) { jlong jl = ((jlong)(*( signed int *)((jint *)from )) << 32) |
111 ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0);
112 return *(jdouble *)&jl; }
113 #endif
114
115 };
116
117 #endif // CPU_SPARC_VM_JNITYPES_SPARC_HPP
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