| /* |
| * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef CPU_SPARC_VM_JNITYPES_SPARC_HPP |
| #define CPU_SPARC_VM_JNITYPES_SPARC_HPP |
| |
| #include "memory/allocation.hpp" |
| #include "oops/oop.hpp" |
| #include "prims/jni.h" |
| |
| // This file holds platform-dependent routines used to write primitive jni |
| // types to the array of arguments passed into JavaCalls::call |
| |
| class JNITypes : AllStatic { |
| // These functions write a java primitive type (in native format) |
| // to a java stack slot array to be passed as an argument to JavaCalls:calls. |
| // I.e., they are functionally 'push' operations if they have a 'pos' |
| // formal parameter. Note that jlong's and jdouble's are written |
| // _in reverse_ of the order in which they appear in the interpreter |
| // stack. This is because call stubs (see stubGenerator_sparc.cpp) |
| // reverse the argument list constructed by JavaCallArguments (see |
| // javaCalls.hpp). |
| |
| private: |
| // Helper routines. |
| static inline void put_int2 (jint *from, jint *to) { to[0] = from[0]; to[1] = from[1]; } |
| static inline void put_int2 (jint *from, jint *to, int& pos) { put_int2 (from, (jint *)((intptr_t *)to + pos)); pos += 2; } |
| static inline void put_int2r(jint *from, jint *to) { to[0] = from[1]; to[1] = from[0]; } |
| static inline void put_int2r(jint *from, jint *to, int& pos) { put_int2r(from, (jint *)((intptr_t *)to + pos)); pos += 2; } |
| |
| public: |
| // Ints are stored in native format in one JavaCallArgument slot at *to. |
| static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; } |
| static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; } |
| static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; } |
| |
| #ifdef _LP64 |
| // Longs are stored in native format in one JavaCallArgument slot at *(to+1). |
| static inline void put_long(jlong from, intptr_t *to) { *(jlong *)(to + 1 + 0) = from; } |
| static inline void put_long(jlong from, intptr_t *to, int& pos) { *(jlong *)(to + 1 + pos) = from; pos += 2; } |
| static inline void put_long(jlong *from, intptr_t *to, int& pos) { *(jlong *)(to + 1 + pos) = *from; pos += 2; } |
| #else |
| // Longs are stored in reversed native word format in two JavaCallArgument slots at *to. |
| // The high half is in *(to+1) and the low half in *to. |
| static inline void put_long(jlong from, intptr_t *to) { put_int2r((jint *)&from, (jint *)to); } |
| static inline void put_long(jlong from, intptr_t *to, int& pos) { put_int2r((jint *)&from, (jint *)to, pos); } |
| static inline void put_long(jlong *from, intptr_t *to, int& pos) { put_int2r((jint *) from, (jint *)to, pos); } |
| #endif |
| |
| // Oops are stored in native format in one JavaCallArgument slot at *to. |
| static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; } |
| static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; } |
| static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; } |
| |
| // Floats are stored in native format in one JavaCallArgument slot at *to. |
| static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; } |
| static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; } |
| static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; } |
| |
| #ifdef _LP64 |
| // Doubles are stored in native word format in one JavaCallArgument slot at *(to+1). |
| static inline void put_double(jdouble from, intptr_t *to) { *(jdouble *)(to + 1 + 0) = from; } |
| static inline void put_double(jdouble from, intptr_t *to, int& pos) { *(jdouble *)(to + 1 + pos) = from; pos += 2; } |
| static inline void put_double(jdouble *from, intptr_t *to, int& pos) { *(jdouble *)(to + 1 + pos) = *from; pos += 2; } |
| #else |
| // Doubles are stored in reversed native word format in two JavaCallArgument slots at *to. |
| static inline void put_double(jdouble from, intptr_t *to) { put_int2r((jint *)&from, (jint *)to); } |
| static inline void put_double(jdouble from, intptr_t *to, int& pos) { put_int2r((jint *)&from, (jint *)to, pos); } |
| static inline void put_double(jdouble *from, intptr_t *to, int& pos) { put_int2r((jint *) from, (jint *)to, pos); } |
| #endif |
| |
| // The get_xxx routines, on the other hand, actually _do_ fetch |
| // java primitive types from the interpreter stack. |
| static inline jint get_int(intptr_t *from) { return *(jint *)from; } |
| |
| #ifdef _LP64 |
| static inline jlong get_long(intptr_t *from) { return *(jlong *)from; } |
| #else |
| static inline jlong get_long(intptr_t *from) { return ((jlong)(*( signed int *)((jint *)from )) << 32) | |
| ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0); } |
| #endif |
| |
| static inline oop get_obj(intptr_t *from) { return *(oop *)from; } |
| static inline jfloat get_float(intptr_t *from) { return *(jfloat *)from; } |
| |
| #ifdef _LP64 |
| static inline jdouble get_double(intptr_t *from) { return *(jdouble *)from; } |
| #else |
| static inline jdouble get_double(intptr_t *from) { jlong jl = ((jlong)(*( signed int *)((jint *)from )) << 32) | |
| ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0); |
| return *(jdouble *)&jl; } |
| #endif |
| |
| }; |
| |
| #endif // CPU_SPARC_VM_JNITYPES_SPARC_HPP |
