interpreterRT_sparc.cpp revision 1472:c18cbe5936b8
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#include "incls/_precompiled.incl" 26#include "incls/_interpreterRT_sparc.cpp.incl" 27 28 29#define __ _masm-> 30 31 32// Implementation of SignatureHandlerGenerator 33 34void InterpreterRuntime::SignatureHandlerGenerator::pass_word(int size_of_arg, int offset_in_arg) { 35 Argument jni_arg(jni_offset() + offset_in_arg, false); 36 Register Rtmp = O0; 37 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); 38 39 __ store_argument(Rtmp, jni_arg); 40} 41 42void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { 43 Argument jni_arg(jni_offset(), false); 44 Register Rtmp = O0; 45 46#ifdef _LP64 47 __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); 48 __ store_long_argument(Rtmp, jni_arg); 49#else 50 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); 51 __ store_argument(Rtmp, jni_arg); 52 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp); 53 Argument successor(jni_arg.successor()); 54 __ store_argument(Rtmp, successor); 55#endif 56} 57 58 59#ifdef _LP64 60void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { 61 Argument jni_arg(jni_offset(), false); 62 FloatRegister Rtmp = F0; 63 __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); 64 __ store_float_argument(Rtmp, jni_arg); 65} 66#endif 67 68 69void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { 70 Argument jni_arg(jni_offset(), false); 71#ifdef _LP64 72 FloatRegister Rtmp = F0; 73 __ ldf(FloatRegisterImpl::D, Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); 74 __ store_double_argument(Rtmp, jni_arg); 75#else 76 Register Rtmp = O0; 77 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); 78 __ store_argument(Rtmp, jni_arg); 79 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); 80 Argument successor(jni_arg.successor()); 81 __ store_argument(Rtmp, successor); 82#endif 83} 84 85void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { 86 Argument jni_arg(jni_offset(), false); 87 Argument java_arg( offset(), true); 88 Register Rtmp1 = O0; 89 Register Rtmp2 = jni_arg.is_register() ? jni_arg.as_register() : O0; 90 Register Rtmp3 = G3_scratch; 91 92 // the handle for a receiver will never be null 93 bool do_NULL_check = offset() != 0 || is_static(); 94 95 Address h_arg = Address(Llocals, Interpreter::local_offset_in_bytes(offset())); 96 __ ld_ptr(h_arg, Rtmp1); 97 if (!do_NULL_check) { 98 __ add(h_arg.base(), h_arg.disp(), Rtmp2); 99 } else { 100 if (Rtmp1 == Rtmp2) 101 __ tst(Rtmp1); 102 else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair 103 Label L; 104 __ brx(Assembler::notZero, true, Assembler::pt, L); 105 __ delayed()->add(h_arg.base(), h_arg.disp(), Rtmp2); 106 __ bind(L); 107 } 108 __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op 109} 110 111 112void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { 113 114 // generate code to handle arguments 115 iterate(fingerprint); 116 117 // return result handler 118 AddressLiteral result_handler(Interpreter::result_handler(method()->result_type())); 119 __ sethi(result_handler, Lscratch); 120 __ retl(); 121 __ delayed()->add(Lscratch, result_handler.low10(), Lscratch); 122 123 __ flush(); 124} 125 126 127// Implementation of SignatureHandlerLibrary 128 129void SignatureHandlerLibrary::pd_set_handler(address handler) {} 130 131 132class SlowSignatureHandler: public NativeSignatureIterator { 133 private: 134 address _from; 135 intptr_t* _to; 136 intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers 137 uint _argcount; 138 139 enum { // We need to differenciate float from non floats in reg args 140 non_float = 0, 141 float_sig = 1, 142 double_sig = 2, 143 long_sig = 3 144 }; 145 146 virtual void pass_int() { 147 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); 148 _from -= Interpreter::stackElementSize; 149 add_signature( non_float ); 150 } 151 152 virtual void pass_object() { 153 // pass address of from 154 intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); 155 *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; 156 _from -= Interpreter::stackElementSize; 157 add_signature( non_float ); 158 } 159 160#ifdef _LP64 161 virtual void pass_float() { 162 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); 163 _from -= Interpreter::stackElementSize; 164 add_signature( float_sig ); 165 } 166 167 virtual void pass_double() { 168 *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); 169 _from -= 2*Interpreter::stackElementSize; 170 add_signature( double_sig ); 171 } 172 173 virtual void pass_long() { 174 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); 175 _to += 1; 176 _from -= 2*Interpreter::stackElementSize; 177 add_signature( long_sig ); 178 } 179#else 180 // pass_double() is pass_long() and pass_float() only _LP64 181 virtual void pass_long() { 182 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); 183 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); 184 _to += 2; 185 _from -= 2*Interpreter::stackElementSize; 186 add_signature( non_float ); 187 } 188#endif // _LP64 189 190 virtual void add_signature( intptr_t sig_type ) { 191 if ( _argcount < (sizeof (intptr_t))*4 ) { 192 *_RegArgSignature |= (sig_type << (_argcount*2) ); 193 _argcount++; 194 } 195 } 196 197 198 public: 199 SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) { 200 _from = from; 201 _to = to; 202 _RegArgSignature = RegArgSig; 203 *_RegArgSignature = 0; 204 _argcount = method->is_static() ? 2 : 1; 205 } 206}; 207 208 209IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler( 210 JavaThread* thread, 211 methodOopDesc* method, 212 intptr_t* from, 213 intptr_t* to )) 214 methodHandle m(thread, method); 215 assert(m->is_native(), "sanity check"); 216 // handle arguments 217 // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature 218 // back to the code that pops the arguments into the CPU registers 219 SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1)); 220 // return result handler 221 return Interpreter::result_handler(m->result_type()); 222IRT_END 223