Mercurial > hg > truffle
comparison src/cpu/sparc/vm/interpreterRT_sparc.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | 6b2273dd6fa9 |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 1998-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any 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 | |
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 ASSERT | |
47 if (TaggedStackInterpreter) { | |
48 // check at least one tag is okay | |
49 Label ok; | |
50 __ ld_ptr(Llocals, Interpreter::local_tag_offset_in_bytes(offset() + 1), Rtmp); | |
51 __ cmp(Rtmp, G0); | |
52 __ brx(Assembler::equal, false, Assembler::pt, ok); | |
53 __ delayed()->nop(); | |
54 __ stop("Native object has bad tag value"); | |
55 __ bind(ok); | |
56 } | |
57 #endif // ASSERT | |
58 | |
59 #ifdef _LP64 | |
60 __ ldx(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
61 __ store_long_argument(Rtmp, jni_arg); | |
62 #else | |
63 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 1), Rtmp); | |
64 __ store_argument(Rtmp, jni_arg); | |
65 __ ld(Llocals, Interpreter::local_offset_in_bytes(offset() + 0), Rtmp); | |
66 Argument successor(jni_arg.successor()); | |
67 __ store_argument(Rtmp, successor); | |
68 #endif | |
69 } | |
70 | |
71 | |
72 #ifdef _LP64 | |
73 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { | |
74 Argument jni_arg(jni_offset(), false); | |
75 FloatRegister Rtmp = F0; | |
76 __ ldf(FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(offset()), Rtmp); | |
77 __ store_float_argument(Rtmp, jni_arg); | |
78 } | |
79 #endif | |
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 | |
108 Address h_arg = Address(Llocals, 0, Interpreter::local_offset_in_bytes(offset())); | |
109 __ ld_ptr(h_arg, Rtmp1); | |
110 #ifdef ASSERT | |
111 if (TaggedStackInterpreter) { | |
112 // check we have the obj and not the tag | |
113 Label ok; | |
114 __ mov(frame::TagReference, Rtmp3); | |
115 __ cmp(Rtmp1, Rtmp3); | |
116 __ brx(Assembler::notEqual, true, Assembler::pt, ok); | |
117 __ delayed()->nop(); | |
118 __ stop("Native object passed tag by mistake"); | |
119 __ bind(ok); | |
120 } | |
121 #endif // ASSERT | |
122 if (!do_NULL_check) { | |
123 __ add(h_arg, Rtmp2); | |
124 } else { | |
125 if (Rtmp1 == Rtmp2) | |
126 __ tst(Rtmp1); | |
127 else __ addcc(G0, Rtmp1, Rtmp2); // optimize mov/test pair | |
128 Label L; | |
129 __ brx(Assembler::notZero, true, Assembler::pt, L); | |
130 __ delayed()->add(h_arg, Rtmp2); | |
131 __ bind(L); | |
132 } | |
133 __ store_ptr_argument(Rtmp2, jni_arg); // this is often a no-op | |
134 } | |
135 | |
136 | |
137 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { | |
138 | |
139 // generate code to handle arguments | |
140 iterate(fingerprint); | |
141 | |
142 // return result handler | |
143 Address result_handler(Lscratch, Interpreter::result_handler(method()->result_type())); | |
144 __ sethi(result_handler); | |
145 __ retl(); | |
146 __ delayed()->add(result_handler, result_handler.base()); | |
147 | |
148 __ flush(); | |
149 } | |
150 | |
151 | |
152 // Implementation of SignatureHandlerLibrary | |
153 | |
154 void SignatureHandlerLibrary::pd_set_handler(address handler) {} | |
155 | |
156 | |
157 class SlowSignatureHandler: public NativeSignatureIterator { | |
158 private: | |
159 address _from; | |
160 intptr_t* _to; | |
161 intptr_t* _RegArgSignature; // Signature of first Arguments to be passed in Registers | |
162 uint _argcount; | |
163 | |
164 enum { // We need to differenciate float from non floats in reg args | |
165 non_float = 0, | |
166 float_sig = 1, | |
167 double_sig = 2, | |
168 long_sig = 3 | |
169 }; | |
170 | |
171 #ifdef ASSERT | |
172 void verify_tag(frame::Tag t) { | |
173 assert(!TaggedStackInterpreter || | |
174 *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag"); | |
175 } | |
176 #endif // ASSERT | |
177 | |
178 virtual void pass_int() { | |
179 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); | |
180 debug_only(verify_tag(frame::TagValue)); | |
181 _from -= Interpreter::stackElementSize(); | |
182 add_signature( non_float ); | |
183 } | |
184 | |
185 virtual void pass_object() { | |
186 // pass address of from | |
187 intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); | |
188 *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; | |
189 debug_only(verify_tag(frame::TagReference)); | |
190 _from -= Interpreter::stackElementSize(); | |
191 add_signature( non_float ); | |
192 } | |
193 | |
194 #ifdef _LP64 | |
195 virtual void pass_float() { | |
196 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); | |
197 debug_only(verify_tag(frame::TagValue)); | |
198 _from -= Interpreter::stackElementSize(); | |
199 add_signature( float_sig ); | |
200 } | |
201 | |
202 virtual void pass_double() { | |
203 *_to++ = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
204 debug_only(verify_tag(frame::TagValue)); | |
205 _from -= 2*Interpreter::stackElementSize(); | |
206 add_signature( double_sig ); | |
207 } | |
208 | |
209 virtual void pass_long() { | |
210 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
211 debug_only(verify_tag(frame::TagValue)); | |
212 _to += 1; | |
213 _from -= 2*Interpreter::stackElementSize(); | |
214 add_signature( long_sig ); | |
215 } | |
216 #else | |
217 // pass_double() is pass_long() and pass_float() only _LP64 | |
218 virtual void pass_long() { | |
219 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); | |
220 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); | |
221 debug_only(verify_tag(frame::TagValue)); | |
222 _to += 2; | |
223 _from -= 2*Interpreter::stackElementSize(); | |
224 add_signature( non_float ); | |
225 } | |
226 #endif // _LP64 | |
227 | |
228 virtual void add_signature( intptr_t sig_type ) { | |
229 if ( _argcount < (sizeof (intptr_t))*4 ) { | |
230 *_RegArgSignature |= (sig_type << (_argcount*2) ); | |
231 _argcount++; | |
232 } | |
233 } | |
234 | |
235 | |
236 public: | |
237 SlowSignatureHandler(methodHandle method, address from, intptr_t* to, intptr_t *RegArgSig) : NativeSignatureIterator(method) { | |
238 _from = from; | |
239 _to = to; | |
240 _RegArgSignature = RegArgSig; | |
241 *_RegArgSignature = 0; | |
242 _argcount = method->is_static() ? 2 : 1; | |
243 } | |
244 }; | |
245 | |
246 | |
247 IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler( | |
248 JavaThread* thread, | |
249 methodOopDesc* method, | |
250 intptr_t* from, | |
251 intptr_t* to )) | |
252 methodHandle m(thread, method); | |
253 assert(m->is_native(), "sanity check"); | |
254 // handle arguments | |
255 // Warning: We use reg arg slot 00 temporarily to return the RegArgSignature | |
256 // back to the code that pops the arguments into the CPU registers | |
257 SlowSignatureHandler(m, (address)from, m->is_static() ? to+2 : to+1, to).iterate(UCONST64(-1)); | |
258 // return result handler | |
259 return Interpreter::result_handler(m->result_type()); | |
260 IRT_END |