Mercurial > hg > truffle
annotate src/cpu/sparc/vm/interpreterRT_sparc.cpp @ 8196:60a90f433459
alignment bug fix (contributed by Mick Jordan)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 11 Mar 2013 14:01:16 +0100 |
parents | da91efe96a93 |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1998, 2012, 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 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "interpreter/interpreterRuntime.hpp" | |
28 #include "memory/allocation.inline.hpp" | |
29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/method.hpp" |
1972 | 31 #include "oops/oop.inline.hpp" |
32 #include "runtime/handles.inline.hpp" | |
33 #include "runtime/icache.hpp" | |
34 #include "runtime/interfaceSupport.hpp" | |
35 #include "runtime/signature.hpp" | |
0 | 36 |
37 | |
38 #define __ _masm-> | |
39 | |
40 | |
41 // Implementation of SignatureHandlerGenerator | |
42 | |
43 void InterpreterRuntime::SignatureHandlerGenerator::pass_word(int size_of_arg, int offset_in_arg) { | |
44 Argument jni_arg(jni_offset() + offset_in_arg, false); | |
45 Register Rtmp = O0; | |
46 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); | |
47 | |
48 __ store_argument(Rtmp, jni_arg); | |
49 } | |
50 | |
51 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { | |
52 Argument jni_arg(jni_offset(), false); | |
53 Register Rtmp = O0; | |
54 | |
55 #ifdef _LP64 | |
56 __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
57 __ store_long_argument(Rtmp, jni_arg); | |
58 #else | |
59 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
60 __ store_argument(Rtmp, jni_arg); | |
61 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp); | |
62 Argument successor(jni_arg.successor()); | |
63 __ store_argument(Rtmp, successor); | |
64 #endif | |
65 } | |
66 | |
67 | |
68 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { | |
69 Argument jni_arg(jni_offset(), false); | |
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70 #ifdef _LP64 |
0 | 71 FloatRegister Rtmp = F0; |
72 __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); | |
73 __ store_float_argument(Rtmp, jni_arg); | |
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74 #else |
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75 Register Rtmp = O0; |
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76 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); |
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77 __ store_argument(Rtmp, jni_arg); |
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78 #endif |
0 | 79 } |
80 | |
81 | |
82 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { | |
83 Argument jni_arg(jni_offset(), false); | |
84 #ifdef _LP64 | |
85 FloatRegister Rtmp = F0; | |
86 __ ldf(FloatRegisterImpl::D, Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
87 __ store_double_argument(Rtmp, jni_arg); | |
88 #else | |
89 Register Rtmp = O0; | |
90 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
91 __ store_argument(Rtmp, jni_arg); | |
92 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); | |
93 Argument successor(jni_arg.successor()); | |
94 __ store_argument(Rtmp, successor); | |
95 #endif | |
96 } | |
97 | |
98 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { | |
99 Argument jni_arg(jni_offset(), false); | |
100 Argument java_arg( offset(), true); | |
101 Register Rtmp1 = O0; | |
102 Register Rtmp2 = jni_arg.is_register() ? jni_arg.as_register() : O0; | |
103 Register Rtmp3 = G3_scratch; | |
104 | |
105 // the handle for a receiver will never be null | |
106 bool do_NULL_check = offset() != 0 || is_static(); | |
107 | |
727 | 108 Address h_arg = Address(Llocals, Interpreter::local_offset_in_bytes(offset())); |
0 | 109 __ ld_ptr(h_arg, Rtmp1); |
110 if (!do_NULL_check) { | |
727 | 111 __ add(h_arg.base(), h_arg.disp(), Rtmp2); |
0 | 112 } else { |
113 if (Rtmp1 == Rtmp2) | |
114 __ tst(Rtmp1); | |
115 else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair | |
116 Label L; | |
117 __ brx(Assembler::notZero, true, Assembler::pt, L); | |
727 | 118 __ delayed()->add(h_arg.base(), h_arg.disp(), Rtmp2); |
0 | 119 __ bind(L); |
120 } | |
121 __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op | |
122 } | |
123 | |
124 | |
125 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { | |
126 | |
127 // generate code to handle arguments | |
128 iterate(fingerprint); | |
129 | |
130 // return result handler | |
727 | 131 AddressLiteral result_handler(Interpreter::result_handler(method()->result_type())); |
132 __ sethi(result_handler, Lscratch); | |
0 | 133 __ retl(); |
727 | 134 __ delayed()->add(Lscratch, result_handler.low10(), Lscratch); |
0 | 135 |
136 __ flush(); | |
137 } | |
138 | |
139 | |
140 // Implementation of SignatureHandlerLibrary | |
141 | |
142 void SignatureHandlerLibrary::pd_set_handler(address handler) {} | |
143 | |
144 | |
145 class SlowSignatureHandler: public NativeSignatureIterator { | |
146 private: | |
147 address _from; | |
148 intptr_t* _to; | |
149 intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers | |
150 uint _argcount; | |
151 | |
152 enum { // We need to differenciate float from non floats in reg args | |
153 non_float = 0, | |
154 float_sig = 1, | |
155 double_sig = 2, | |
156 long_sig = 3 | |
157 }; | |
158 | |
159 virtual void pass_int() { | |
160 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); | |
1506 | 161 _from -= Interpreter::stackElementSize; |
0 | 162 add_signature( non_float ); |
163 } | |
164 | |
165 virtual void pass_object() { | |
166 // pass address of from | |
167 intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); | |
168 *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; | |
1506 | 169 _from -= Interpreter::stackElementSize; |
0 | 170 add_signature( non_float ); |
171 } | |
172 | |
173 #ifdef _LP64 | |
174 virtual void pass_float() { | |
175 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); | |
1506 | 176 _from -= Interpreter::stackElementSize; |
0 | 177 add_signature( float_sig ); |
178 } | |
179 | |
180 virtual void pass_double() { | |
181 *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
1506 | 182 _from -= 2*Interpreter::stackElementSize; |
0 | 183 add_signature( double_sig ); |
184 } | |
185 | |
186 virtual void pass_long() { | |
187 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
188 _to += 1; | |
1506 | 189 _from -= 2*Interpreter::stackElementSize; |
0 | 190 add_signature( long_sig ); |
191 } | |
192 #else | |
193 // pass_double() is pass_long() and pass_float() only _LP64 | |
194 virtual void pass_long() { | |
195 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
196 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); | |
197 _to += 2; | |
1506 | 198 _from -= 2*Interpreter::stackElementSize; |
0 | 199 add_signature( non_float ); |
200 } | |
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201 |
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202 virtual void pass_float() { |
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203 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
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204 _from -= Interpreter::stackElementSize; |
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205 add_signature( non_float ); |
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206 } |
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207 |
0 | 208 #endif // _LP64 |
209 | |
210 virtual void add_signature( intptr_t sig_type ) { | |
211 if ( _argcount < (sizeof (intptr_t))*4 ) { | |
212 *_RegArgSignature |= (sig_type << (_argcount*2) ); | |
213 _argcount++; | |
214 } | |
215 } | |
216 | |
217 | |
218 public: | |
219 SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) { | |
220 _from = from; | |
221 _to = to; | |
222 _RegArgSignature = RegArgSig; | |
223 *_RegArgSignature = 0; | |
224 _argcount = method->is_static() ? 2 : 1; | |
225 } | |
226 }; | |
227 | |
228 | |
229 IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler( | |
230 JavaThread* thread, | |
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231 Method* method, |
0 | 232 intptr_t* from, |
233 intptr_t* to )) | |
234 methodHandle m(thread, method); | |
235 assert(m->is_native(), "sanity check"); | |
236 // handle arguments | |
237 // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature | |
238 // back to the code that pops the arguments into the CPU registers | |
239 SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1)); | |
240 // return result handler | |
241 return Interpreter::result_handler(m->result_type()); | |
242 IRT_END |