1 /* 2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2012, 2013 SAP AG. 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_BYTECODEINTERPRETER_PPC_HPP 27 #define CPU_PPC_VM_BYTECODEINTERPRETER_PPC_HPP 28 29 // Platform specific for C++ based Interpreter 30 #define LOTS_OF_REGS /* Lets interpreter use plenty of registers */ 31 32 private: 33 34 // Save the bottom of the stack after frame manager setup. For ease of restoration after return 35 // from recursive interpreter call. 36 intptr_t* _frame_bottom; // Saved bottom of frame manager frame. 37 address _last_Java_pc; // Pc to return to in frame manager. 38 intptr_t* _last_Java_fp; // frame pointer 39 intptr_t* _last_Java_sp; // stack pointer 40 interpreterState _self_link; // Previous interpreter state // sometimes points to self??? 41 double _native_fresult; // Save result of native calls that might return floats. 42 intptr_t _native_lresult; // Save result of native calls that might return handle/longs. 43 44 public: 45 address last_Java_pc(void) { return _last_Java_pc; } last_Java_fp(void)46 intptr_t* last_Java_fp(void) { return _last_Java_fp; } 47 native_lresult_offset()48 static ByteSize native_lresult_offset() { 49 return byte_offset_of(BytecodeInterpreter, _native_lresult); 50 } 51 native_fresult_offset()52 static ByteSize native_fresult_offset() { 53 return byte_offset_of(BytecodeInterpreter, _native_fresult); 54 } 55 56 static void pd_layout_interpreterState(interpreterState istate, address last_Java_pc, intptr_t* last_Java_fp); 57 58 #define SET_LAST_JAVA_FRAME() THREAD->frame_anchor()->set(istate->_last_Java_sp, istate->_last_Java_pc); 59 #define RESET_LAST_JAVA_FRAME() THREAD->frame_anchor()->clear(); 60 61 62 // Macros for accessing the stack. 63 #undef STACK_INT 64 #undef STACK_FLOAT 65 #undef STACK_ADDR 66 #undef STACK_OBJECT 67 #undef STACK_DOUBLE 68 #undef STACK_LONG 69 70 // JavaStack Implementation 71 #define STACK_SLOT(offset) ((address) &topOfStack[-(offset)]) 72 #define STACK_INT(offset) (*((jint*) &topOfStack[-(offset)])) 73 #define STACK_FLOAT(offset) (*((jfloat *) &topOfStack[-(offset)])) 74 #define STACK_OBJECT(offset) (*((oop *) &topOfStack [-(offset)])) 75 #define STACK_DOUBLE(offset) (((VMJavaVal64*) &topOfStack[-(offset)])->d) 76 #define STACK_LONG(offset) (((VMJavaVal64 *) &topOfStack[-(offset)])->l) 77 78 #define SET_STACK_SLOT(value, offset) (*(intptr_t*)&topOfStack[-(offset)] = *(intptr_t*)(value)) 79 #define SET_STACK_ADDR(value, offset) (*((address *)&topOfStack[-(offset)]) = (value)) 80 #define SET_STACK_INT(value, offset) (*((jint *)&topOfStack[-(offset)]) = (value)) 81 #define SET_STACK_FLOAT(value, offset) (*((jfloat *)&topOfStack[-(offset)]) = (value)) 82 #define SET_STACK_OBJECT(value, offset) (*((oop *)&topOfStack[-(offset)]) = (value)) 83 #define SET_STACK_DOUBLE(value, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->d = (value)) 84 #define SET_STACK_DOUBLE_FROM_ADDR(addr, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->d = \ 85 ((VMJavaVal64*)(addr))->d) 86 #define SET_STACK_LONG(value, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->l = (value)) 87 #define SET_STACK_LONG_FROM_ADDR(addr, offset) (((VMJavaVal64*)&topOfStack[-(offset)])->l = \ 88 ((VMJavaVal64*)(addr))->l) 89 // JavaLocals implementation 90 91 #define LOCALS_SLOT(offset) ((intptr_t*)&locals[-(offset)]) 92 #define LOCALS_ADDR(offset) ((address)locals[-(offset)]) 93 #define LOCALS_INT(offset) (*(jint*)&(locals[-(offset)])) 94 #define LOCALS_OBJECT(offset) (cast_to_oop(locals[-(offset)])) 95 #define LOCALS_LONG_AT(offset) (((address)&locals[-((offset) + 1)])) 96 #define LOCALS_DOUBLE_AT(offset) (((address)&locals[-((offset) + 1)])) 97 98 #define SET_LOCALS_SLOT(value, offset) (*(intptr_t*)&locals[-(offset)] = *(intptr_t *)(value)) 99 #define SET_LOCALS_INT(value, offset) (*((jint *)&locals[-(offset)]) = (value)) 100 #define SET_LOCALS_DOUBLE(value, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->d = (value)) 101 #define SET_LOCALS_LONG(value, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->l = (value)) 102 #define SET_LOCALS_DOUBLE_FROM_ADDR(addr, offset) (((VMJavaVal64*)&locals[-((offset)+1)])->d = \ 103 ((VMJavaVal64*)(addr))->d) 104 105 106 #endif // CPU_PPC_VM_BYTECODEINTERPRETER_PPC_PP 107