1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/sparc/vm/jniTypes_sparc.hpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,108 @@
1.4 +/*
1.5 + * Copyright 1998-2002 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +// This file holds platform-dependent routines used to write primitive jni
1.29 +// types to the array of arguments passed into JavaCalls::call
1.30 +
1.31 +class JNITypes : AllStatic {
1.32 + // These functions write a java primitive type (in native format)
1.33 + // to a java stack slot array to be passed as an argument to JavaCalls:calls.
1.34 + // I.e., they are functionally 'push' operations if they have a 'pos'
1.35 + // formal parameter. Note that jlong's and jdouble's are written
1.36 + // _in reverse_ of the order in which they appear in the interpreter
1.37 + // stack. This is because call stubs (see stubGenerator_sparc.cpp)
1.38 + // reverse the argument list constructed by JavaCallArguments (see
1.39 + // javaCalls.hpp).
1.40 +
1.41 +private:
1.42 + // Helper routines.
1.43 + static inline void put_int2 (jint *from, jint *to) { to[0] = from[0]; to[1] = from[1]; }
1.44 + static inline void put_int2 (jint *from, jint *to, int& pos) { put_int2 (from, (jint *)((intptr_t *)to + pos)); pos += 2; }
1.45 + static inline void put_int2r(jint *from, jint *to) { to[0] = from[1]; to[1] = from[0]; }
1.46 + static inline void put_int2r(jint *from, jint *to, int& pos) { put_int2r(from, (jint *)((intptr_t *)to + pos)); pos += 2; }
1.47 +
1.48 +public:
1.49 + // Ints are stored in native format in one JavaCallArgument slot at *to.
1.50 + static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; }
1.51 + static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; }
1.52 + static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; }
1.53 +
1.54 +#ifdef _LP64
1.55 + // Longs are stored in native format in one JavaCallArgument slot at *(to+1).
1.56 + static inline void put_long(jlong from, intptr_t *to) { *(jlong *)(to + 1 + 0) = from; }
1.57 + static inline void put_long(jlong from, intptr_t *to, int& pos) { *(jlong *)(to + 1 + pos) = from; pos += 2; }
1.58 + static inline void put_long(jlong *from, intptr_t *to, int& pos) { *(jlong *)(to + 1 + pos) = *from; pos += 2; }
1.59 +#else
1.60 + // Longs are stored in reversed native word format in two JavaCallArgument slots at *to.
1.61 + // The high half is in *(to+1) and the low half in *to.
1.62 + static inline void put_long(jlong from, intptr_t *to) { put_int2r((jint *)&from, (jint *)to); }
1.63 + static inline void put_long(jlong from, intptr_t *to, int& pos) { put_int2r((jint *)&from, (jint *)to, pos); }
1.64 + static inline void put_long(jlong *from, intptr_t *to, int& pos) { put_int2r((jint *) from, (jint *)to, pos); }
1.65 +#endif
1.66 +
1.67 + // Oops are stored in native format in one JavaCallArgument slot at *to.
1.68 + static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; }
1.69 + static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; }
1.70 + static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; }
1.71 +
1.72 + // Floats are stored in native format in one JavaCallArgument slot at *to.
1.73 + static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; }
1.74 + static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; }
1.75 + static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; }
1.76 +
1.77 +#ifdef _LP64
1.78 + // Doubles are stored in native word format in one JavaCallArgument slot at *(to+1).
1.79 + static inline void put_double(jdouble from, intptr_t *to) { *(jdouble *)(to + 1 + 0) = from; }
1.80 + static inline void put_double(jdouble from, intptr_t *to, int& pos) { *(jdouble *)(to + 1 + pos) = from; pos += 2; }
1.81 + static inline void put_double(jdouble *from, intptr_t *to, int& pos) { *(jdouble *)(to + 1 + pos) = *from; pos += 2; }
1.82 +#else
1.83 + // Doubles are stored in reversed native word format in two JavaCallArgument slots at *to.
1.84 + static inline void put_double(jdouble from, intptr_t *to) { put_int2r((jint *)&from, (jint *)to); }
1.85 + static inline void put_double(jdouble from, intptr_t *to, int& pos) { put_int2r((jint *)&from, (jint *)to, pos); }
1.86 + static inline void put_double(jdouble *from, intptr_t *to, int& pos) { put_int2r((jint *) from, (jint *)to, pos); }
1.87 +#endif
1.88 +
1.89 + // The get_xxx routines, on the other hand, actually _do_ fetch
1.90 + // java primitive types from the interpreter stack.
1.91 + static inline jint get_int(intptr_t *from) { return *(jint *)from; }
1.92 +
1.93 +#ifdef _LP64
1.94 + static inline jlong get_long(intptr_t *from) { return *(jlong *)from; }
1.95 +#else
1.96 + static inline jlong get_long(intptr_t *from) { return ((jlong)(*( signed int *)((jint *)from )) << 32) |
1.97 + ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0); }
1.98 +#endif
1.99 +
1.100 + static inline oop get_obj(intptr_t *from) { return *(oop *)from; }
1.101 + static inline jfloat get_float(intptr_t *from) { return *(jfloat *)from; }
1.102 +
1.103 +#ifdef _LP64
1.104 + static inline jdouble get_double(intptr_t *from) { return *(jdouble *)from; }
1.105 +#else
1.106 + static inline jdouble get_double(intptr_t *from) { jlong jl = ((jlong)(*( signed int *)((jint *)from )) << 32) |
1.107 + ((jlong)(*(unsigned int *)((jint *)from + 1)) << 0);
1.108 + return *(jdouble *)&jl; }
1.109 +#endif
1.110 +
1.111 +};
