Mon, 11 Oct 2010 04:18:58 -0700
6829194: JSR 292 needs to support compressed oops
Reviewed-by: kvn, jrose
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #include "incls/_precompiled.incl" |
duke@435 | 26 | #include "incls/_interpreterRT_sparc.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | |
duke@435 | 29 | #define __ _masm-> |
duke@435 | 30 | |
duke@435 | 31 | |
duke@435 | 32 | // Implementation of SignatureHandlerGenerator |
duke@435 | 33 | |
duke@435 | 34 | void InterpreterRuntime::SignatureHandlerGenerator::pass_word(int size_of_arg, int offset_in_arg) { |
duke@435 | 35 | Argument jni_arg(jni_offset() + offset_in_arg, false); |
duke@435 | 36 | Register Rtmp = O0; |
duke@435 | 37 | __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); |
duke@435 | 38 | |
duke@435 | 39 | __ store_argument(Rtmp, jni_arg); |
duke@435 | 40 | } |
duke@435 | 41 | |
duke@435 | 42 | void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { |
duke@435 | 43 | Argument jni_arg(jni_offset(), false); |
duke@435 | 44 | Register Rtmp = O0; |
duke@435 | 45 | |
duke@435 | 46 | #ifdef _LP64 |
duke@435 | 47 | __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); |
duke@435 | 48 | __ store_long_argument(Rtmp, jni_arg); |
duke@435 | 49 | #else |
duke@435 | 50 | __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); |
duke@435 | 51 | __ store_argument(Rtmp, jni_arg); |
duke@435 | 52 | __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp); |
duke@435 | 53 | Argument successor(jni_arg.successor()); |
duke@435 | 54 | __ store_argument(Rtmp, successor); |
duke@435 | 55 | #endif |
duke@435 | 56 | } |
duke@435 | 57 | |
duke@435 | 58 | |
duke@435 | 59 | void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { |
duke@435 | 60 | Argument jni_arg(jni_offset(), false); |
bobv@2036 | 61 | #ifdef _LP64 |
duke@435 | 62 | FloatRegister Rtmp = F0; |
duke@435 | 63 | __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); |
duke@435 | 64 | __ store_float_argument(Rtmp, jni_arg); |
bobv@2036 | 65 | #else |
bobv@2036 | 66 | Register Rtmp = O0; |
bobv@2036 | 67 | __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); |
bobv@2036 | 68 | __ store_argument(Rtmp, jni_arg); |
bobv@2036 | 69 | #endif |
duke@435 | 70 | } |
duke@435 | 71 | |
duke@435 | 72 | |
duke@435 | 73 | void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { |
duke@435 | 74 | Argument jni_arg(jni_offset(), false); |
duke@435 | 75 | #ifdef _LP64 |
duke@435 | 76 | FloatRegister Rtmp = F0; |
duke@435 | 77 | __ ldf(FloatRegisterImpl::D, Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); |
duke@435 | 78 | __ store_double_argument(Rtmp, jni_arg); |
duke@435 | 79 | #else |
duke@435 | 80 | Register Rtmp = O0; |
duke@435 | 81 | __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); |
duke@435 | 82 | __ store_argument(Rtmp, jni_arg); |
duke@435 | 83 | __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); |
duke@435 | 84 | Argument successor(jni_arg.successor()); |
duke@435 | 85 | __ store_argument(Rtmp, successor); |
duke@435 | 86 | #endif |
duke@435 | 87 | } |
duke@435 | 88 | |
duke@435 | 89 | void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { |
duke@435 | 90 | Argument jni_arg(jni_offset(), false); |
duke@435 | 91 | Argument java_arg( offset(), true); |
duke@435 | 92 | Register Rtmp1 = O0; |
duke@435 | 93 | Register Rtmp2 = jni_arg.is_register() ? jni_arg.as_register() : O0; |
duke@435 | 94 | Register Rtmp3 = G3_scratch; |
duke@435 | 95 | |
duke@435 | 96 | // the handle for a receiver will never be null |
duke@435 | 97 | bool do_NULL_check = offset() != 0 || is_static(); |
duke@435 | 98 | |
twisti@1162 | 99 | Address h_arg = Address(Llocals, Interpreter::local_offset_in_bytes(offset())); |
duke@435 | 100 | __ ld_ptr(h_arg, Rtmp1); |
duke@435 | 101 | if (!do_NULL_check) { |
twisti@1162 | 102 | __ add(h_arg.base(), h_arg.disp(), Rtmp2); |
duke@435 | 103 | } else { |
duke@435 | 104 | if (Rtmp1 == Rtmp2) |
duke@435 | 105 | __ tst(Rtmp1); |
duke@435 | 106 | else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair |
duke@435 | 107 | Label L; |
duke@435 | 108 | __ brx(Assembler::notZero, true, Assembler::pt, L); |
twisti@1162 | 109 | __ delayed()->add(h_arg.base(), h_arg.disp(), Rtmp2); |
duke@435 | 110 | __ bind(L); |
duke@435 | 111 | } |
duke@435 | 112 | __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op |
duke@435 | 113 | } |
duke@435 | 114 | |
duke@435 | 115 | |
duke@435 | 116 | void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { |
duke@435 | 117 | |
duke@435 | 118 | // generate code to handle arguments |
duke@435 | 119 | iterate(fingerprint); |
duke@435 | 120 | |
duke@435 | 121 | // return result handler |
twisti@1162 | 122 | AddressLiteral result_handler(Interpreter::result_handler(method()->result_type())); |
twisti@1162 | 123 | __ sethi(result_handler, Lscratch); |
duke@435 | 124 | __ retl(); |
twisti@1162 | 125 | __ delayed()->add(Lscratch, result_handler.low10(), Lscratch); |
duke@435 | 126 | |
duke@435 | 127 | __ flush(); |
duke@435 | 128 | } |
duke@435 | 129 | |
duke@435 | 130 | |
duke@435 | 131 | // Implementation of SignatureHandlerLibrary |
duke@435 | 132 | |
duke@435 | 133 | void SignatureHandlerLibrary::pd_set_handler(address handler) {} |
duke@435 | 134 | |
duke@435 | 135 | |
duke@435 | 136 | class SlowSignatureHandler: public NativeSignatureIterator { |
duke@435 | 137 | private: |
duke@435 | 138 | address _from; |
duke@435 | 139 | intptr_t* _to; |
duke@435 | 140 | intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers |
duke@435 | 141 | uint _argcount; |
duke@435 | 142 | |
duke@435 | 143 | enum { // We need to differenciate float from non floats in reg args |
duke@435 | 144 | non_float = 0, |
duke@435 | 145 | float_sig = 1, |
duke@435 | 146 | double_sig = 2, |
duke@435 | 147 | long_sig = 3 |
duke@435 | 148 | }; |
duke@435 | 149 | |
duke@435 | 150 | virtual void pass_int() { |
duke@435 | 151 | *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 152 | _from -= Interpreter::stackElementSize; |
duke@435 | 153 | add_signature( non_float ); |
duke@435 | 154 | } |
duke@435 | 155 | |
duke@435 | 156 | virtual void pass_object() { |
duke@435 | 157 | // pass address of from |
duke@435 | 158 | intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); |
duke@435 | 159 | *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
twisti@1861 | 160 | _from -= Interpreter::stackElementSize; |
duke@435 | 161 | add_signature( non_float ); |
duke@435 | 162 | } |
duke@435 | 163 | |
duke@435 | 164 | #ifdef _LP64 |
duke@435 | 165 | virtual void pass_float() { |
duke@435 | 166 | *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 167 | _from -= Interpreter::stackElementSize; |
duke@435 | 168 | add_signature( float_sig ); |
duke@435 | 169 | } |
duke@435 | 170 | |
duke@435 | 171 | virtual void pass_double() { |
duke@435 | 172 | *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
twisti@1861 | 173 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 174 | add_signature( double_sig ); |
duke@435 | 175 | } |
duke@435 | 176 | |
duke@435 | 177 | virtual void pass_long() { |
duke@435 | 178 | _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
duke@435 | 179 | _to += 1; |
twisti@1861 | 180 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 181 | add_signature( long_sig ); |
duke@435 | 182 | } |
duke@435 | 183 | #else |
duke@435 | 184 | // pass_double() is pass_long() and pass_float() only _LP64 |
duke@435 | 185 | virtual void pass_long() { |
duke@435 | 186 | _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
duke@435 | 187 | _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); |
duke@435 | 188 | _to += 2; |
twisti@1861 | 189 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 190 | add_signature( non_float ); |
duke@435 | 191 | } |
bobv@2036 | 192 | |
bobv@2036 | 193 | virtual void pass_float() { |
bobv@2036 | 194 | *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
bobv@2036 | 195 | _from -= Interpreter::stackElementSize; |
bobv@2036 | 196 | add_signature( non_float ); |
bobv@2036 | 197 | } |
bobv@2036 | 198 | |
duke@435 | 199 | #endif // _LP64 |
duke@435 | 200 | |
duke@435 | 201 | virtual void add_signature( intptr_t sig_type ) { |
duke@435 | 202 | if ( _argcount < (sizeof (intptr_t))*4 ) { |
duke@435 | 203 | *_RegArgSignature |= (sig_type << (_argcount*2) ); |
duke@435 | 204 | _argcount++; |
duke@435 | 205 | } |
duke@435 | 206 | } |
duke@435 | 207 | |
duke@435 | 208 | |
duke@435 | 209 | public: |
duke@435 | 210 | SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) { |
duke@435 | 211 | _from = from; |
duke@435 | 212 | _to = to; |
duke@435 | 213 | _RegArgSignature = RegArgSig; |
duke@435 | 214 | *_RegArgSignature = 0; |
duke@435 | 215 | _argcount = method->is_static() ? 2 : 1; |
duke@435 | 216 | } |
duke@435 | 217 | }; |
duke@435 | 218 | |
duke@435 | 219 | |
duke@435 | 220 | IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler( |
duke@435 | 221 | JavaThread* thread, |
duke@435 | 222 | methodOopDesc* method, |
duke@435 | 223 | intptr_t* from, |
duke@435 | 224 | intptr_t* to )) |
duke@435 | 225 | methodHandle m(thread, method); |
duke@435 | 226 | assert(m->is_native(), "sanity check"); |
duke@435 | 227 | // handle arguments |
duke@435 | 228 | // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature |
duke@435 | 229 | // back to the code that pops the arguments into the CPU registers |
duke@435 | 230 | SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1)); |
duke@435 | 231 | // return result handler |
duke@435 | 232 | return Interpreter::result_handler(m->result_type()); |
duke@435 | 233 | IRT_END |