1 /* 2 * Copyright (c) 2002, 2017, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2012, 2013 SAP SE. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #ifndef CPU_PPC_VM_JNITYPES_PPC_HPP 27 #define CPU_PPC_VM_JNITYPES_PPC_HPP 28 29 #include "jni.h" 30 #include "memory/allocation.hpp" 31 #include "oops/oop.hpp" 32 33 // This file holds platform-dependent routines used to write primitive 34 // jni types to the array of arguments passed into JavaCalls::call. 35 36 class JNITypes : AllStatic { 37 // These functions write a java primitive type (in native format) to 38 // a java stack slot array to be passed as an argument to 39 // JavaCalls:calls. I.e., they are functionally 'push' operations 40 // if they have a 'pos' formal parameter. Note that jlong's and 41 // jdouble's are written _in reverse_ of the order in which they 42 // appear in the interpreter stack. This is because call stubs (see 43 // stubGenerator_sparc.cpp) reverse the argument list constructed by 44 // JavaCallArguments (see javaCalls.hpp). 45 46 private: 47 48 #ifndef PPC64 49 #error "ppc32 support currently not implemented!!!" 50 #endif // PPC64 51 52 public: 53 // Ints are stored in native format in one JavaCallArgument slot at *to. put_int(jint from,intptr_t * to)54 static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; } put_int(jint from,intptr_t * to,int & pos)55 static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; } put_int(jint * from,intptr_t * to,int & pos)56 static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; } 57 58 // Longs are stored in native format in one JavaCallArgument slot at 59 // *(to+1). put_long(jlong from,intptr_t * to)60 static inline void put_long(jlong from, intptr_t *to) { 61 *(jlong*) (to + 1) = from; 62 } 63 put_long(jlong from,intptr_t * to,int & pos)64 static inline void put_long(jlong from, intptr_t *to, int& pos) { 65 *(jlong*) (to + 1 + pos) = from; 66 pos += 2; 67 } 68 put_long(jlong * from,intptr_t * to,int & pos)69 static inline void put_long(jlong *from, intptr_t *to, int& pos) { 70 *(jlong*) (to + 1 + pos) = *from; 71 pos += 2; 72 } 73 74 // Oops are stored in native format in one JavaCallArgument slot at *to. put_obj(oop from,intptr_t * to)75 static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; } put_obj(oop from,intptr_t * to,int & pos)76 static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; } put_obj(oop * from,intptr_t * to,int & pos)77 static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; } 78 79 // Floats are stored in native format in one JavaCallArgument slot at *to. put_float(jfloat from,intptr_t * to)80 static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; } put_float(jfloat from,intptr_t * to,int & pos)81 static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; } put_float(jfloat * from,intptr_t * to,int & pos)82 static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; } 83 84 // Doubles are stored in native word format in one JavaCallArgument 85 // slot at *(to+1). put_double(jdouble from,intptr_t * to)86 static inline void put_double(jdouble from, intptr_t *to) { 87 *(jdouble*) (to + 1) = from; 88 } 89 put_double(jdouble from,intptr_t * to,int & pos)90 static inline void put_double(jdouble from, intptr_t *to, int& pos) { 91 *(jdouble*) (to + 1 + pos) = from; 92 pos += 2; 93 } 94 put_double(jdouble * from,intptr_t * to,int & pos)95 static inline void put_double(jdouble *from, intptr_t *to, int& pos) { 96 *(jdouble*) (to + 1 + pos) = *from; 97 pos += 2; 98 } 99 100 // The get_xxx routines, on the other hand, actually _do_ fetch 101 // java primitive types from the interpreter stack. 102 // No need to worry about alignment on Intel. get_int(intptr_t * from)103 static inline jint get_int (intptr_t *from) { return *(jint *) from; } get_long(intptr_t * from)104 static inline jlong get_long (intptr_t *from) { return *(jlong *) (from + 1); } get_obj(intptr_t * from)105 static inline oop get_obj (intptr_t *from) { return *(oop *) from; } get_float(intptr_t * from)106 static inline jfloat get_float (intptr_t *from) { return *(jfloat *) from; } get_double(intptr_t * from)107 static inline jdouble get_double(intptr_t *from) { return *(jdouble *)(from + 1); } 108 }; 109 110 #endif // CPU_PPC_VM_JNITYPES_PPC_HPP 111