Mercurial > hg > truffle
annotate src/cpu/x86/vm/jniTypes_x86.hpp @ 6639:892ec0920ccd
Merge
author | vladidan |
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date | Wed, 08 Aug 2012 16:09:11 -0400 |
parents | f95d63e2154a |
children | 120820e30baa |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_X86_VM_JNITYPES_X86_HPP |
26 #define CPU_X86_VM_JNITYPES_X86_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "oops/oop.hpp" | |
30 #include "prims/jni.h" | |
31 | |
0 | 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 | |
47 #ifndef AMD64 | |
48 // 32bit Helper routines. | |
49 static inline void put_int2r(jint *from, intptr_t *to) { *(jint *)(to++) = from[1]; | |
50 *(jint *)(to ) = from[0]; } | |
51 static inline void put_int2r(jint *from, intptr_t *to, int& pos) { put_int2r(from, to + pos); pos += 2; } | |
52 #endif // AMD64 | |
53 | |
54 public: | |
55 // Ints are stored in native format in one JavaCallArgument slot at *to. | |
56 static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; } | |
57 static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; } | |
58 static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; } | |
59 | |
60 #ifdef AMD64 | |
61 // Longs are stored in native format in one JavaCallArgument slot at | |
62 // *(to+1). | |
63 static inline void put_long(jlong from, intptr_t *to) { | |
64 *(jlong*) (to + 1) = from; | |
65 } | |
66 | |
67 static inline void put_long(jlong from, intptr_t *to, int& pos) { | |
68 *(jlong*) (to + 1 + pos) = from; | |
69 pos += 2; | |
70 } | |
71 | |
72 static inline void put_long(jlong *from, intptr_t *to, int& pos) { | |
73 *(jlong*) (to + 1 + pos) = *from; | |
74 pos += 2; | |
75 } | |
76 #else | |
77 // Longs are stored in big-endian word format in two JavaCallArgument slots at *to. | |
78 // The high half is in *to and the low half in *(to+1). | |
79 static inline void put_long(jlong from, intptr_t *to) { put_int2r((jint *)&from, to); } | |
80 static inline void put_long(jlong from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); } | |
81 static inline void put_long(jlong *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); } | |
82 #endif // AMD64 | |
83 | |
84 // Oops are stored in native format in one JavaCallArgument slot at *to. | |
85 static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; } | |
86 static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; } | |
87 static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; } | |
88 | |
89 // Floats are stored in native format in one JavaCallArgument slot at *to. | |
90 static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; } | |
91 static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; } | |
92 static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; } | |
93 | |
94 #undef _JNI_SLOT_OFFSET | |
95 #ifdef AMD64 | |
96 #define _JNI_SLOT_OFFSET 1 | |
97 // Doubles are stored in native word format in one JavaCallArgument | |
98 // slot at *(to+1). | |
99 static inline void put_double(jdouble from, intptr_t *to) { | |
100 *(jdouble*) (to + 1) = from; | |
101 } | |
102 | |
103 static inline void put_double(jdouble from, intptr_t *to, int& pos) { | |
104 *(jdouble*) (to + 1 + pos) = from; | |
105 pos += 2; | |
106 } | |
107 | |
108 static inline void put_double(jdouble *from, intptr_t *to, int& pos) { | |
109 *(jdouble*) (to + 1 + pos) = *from; | |
110 pos += 2; | |
111 } | |
112 #else | |
113 #define _JNI_SLOT_OFFSET 0 | |
114 // Doubles are stored in big-endian word format in two JavaCallArgument slots at *to. | |
115 // The high half is in *to and the low half in *(to+1). | |
116 static inline void put_double(jdouble from, intptr_t *to) { put_int2r((jint *)&from, to); } | |
117 static inline void put_double(jdouble from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); } | |
118 static inline void put_double(jdouble *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); } | |
119 #endif // AMD64 | |
120 | |
121 | |
122 // The get_xxx routines, on the other hand, actually _do_ fetch | |
123 // java primitive types from the interpreter stack. | |
124 // No need to worry about alignment on Intel. | |
125 static inline jint get_int (intptr_t *from) { return *(jint *) from; } | |
126 static inline jlong get_long (intptr_t *from) { return *(jlong *) (from + _JNI_SLOT_OFFSET); } | |
127 static inline oop get_obj (intptr_t *from) { return *(oop *) from; } | |
128 static inline jfloat get_float (intptr_t *from) { return *(jfloat *) from; } | |
129 static inline jdouble get_double(intptr_t *from) { return *(jdouble *)(from + _JNI_SLOT_OFFSET); } | |
130 #undef _JNI_SLOT_OFFSET | |
131 }; | |
1972 | 132 |
133 #endif // CPU_X86_VM_JNITYPES_X86_HPP |