Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/sparc/vm/interpreterRT_sparc.cpp@126ea7725993 (annotated)

src/cpu/sparc/vm/interpreterRT_sparc.cpp

Tue, 03 Aug 2010 08:13:38 -0400

author
bobv
date
Tue, 03 Aug 2010 08:13:38 -0400
changeset 2036
126ea7725993
parent 1907
c18cbe5936b8
child 2314
f95d63e2154a
permissions
-rw-r--r--

6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

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

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