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annotate src/cpu/sparc/vm/interpreterRT_sparc.cpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 2338d41fbd81 |
| children | 126ea7725993 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 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 | |
| 34 void 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 | |
| 42 void 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 | |
| 60 void 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 | |
| 69 void 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 | |
| 85 void 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 | |
| 727 | 95 Address h_arg = Address(Llocals, Interpreter::local_offset_in_bytes(offset())); |
| 0 | 96 __ ld_ptr(h_arg, Rtmp1); |
| 97 if (!do_NULL_check) { | |
| 727 | 98 __ add(h_arg.base(), h_arg.disp(), Rtmp2); |
| 0 | 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); | |
| 727 | 105 __ delayed()->add(h_arg.base(), h_arg.disp(), Rtmp2); |
| 0 | 106 __ bind(L); |
| 107 } | |
| 108 __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op | |
| 109 } | |
| 110 | |
| 111 | |
| 112 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { | |
| 113 | |
| 114 // generate code to handle arguments | |
| 115 iterate(fingerprint); | |
| 116 | |
| 117 // return result handler | |
| 727 | 118 AddressLiteral result_handler(Interpreter::result_handler(method()->result_type())); |
| 119 __ sethi(result_handler, Lscratch); | |
| 0 | 120 __ retl(); |
| 727 | 121 __ delayed()->add(Lscratch, result_handler.low10(), Lscratch); |
| 0 | 122 |
| 123 __ flush(); | |
| 124 } | |
| 125 | |
| 126 | |
| 127 // Implementation of SignatureHandlerLibrary | |
| 128 | |
| 129 void SignatureHandlerLibrary::pd_set_handler(address handler) {} | |
| 130 | |
| 131 | |
| 132 class 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)); | |
| 1506 | 148 _from -= Interpreter::stackElementSize; |
| 0 | 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; | |
| 1506 | 156 _from -= Interpreter::stackElementSize; |
| 0 | 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)); | |
| 1506 | 163 _from -= Interpreter::stackElementSize; |
| 0 | 164 add_signature( float_sig ); |
| 165 } | |
| 166 | |
| 167 virtual void pass_double() { | |
| 168 *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
| 1506 | 169 _from -= 2*Interpreter::stackElementSize; |
| 0 | 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; | |
| 1506 | 176 _from -= 2*Interpreter::stackElementSize; |
| 0 | 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; | |
| 1506 | 185 _from -= 2*Interpreter::stackElementSize; |
| 0 | 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 | |
| 209 IRT_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()); | |
| 222 IRT_END |