Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/jniTypes_x86.hpp
src/cpu/x86/vm/jniTypes_x86.hpp
- changeset 0
- f90c822e73f8
- child 6876
- 710a3c8b516e
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f90c822e73f8 |
|---|---|
| 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_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 | |
| 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 }; | |
| 132 | |
| 133 #endif // CPU_X86_VM_JNITYPES_X86_HPP |
