Mercurial > hg > truffle
annotate src/share/vm/oops/cpCacheOop.cpp @ 3758:e2ce15aa3daf
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author | never |
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date | Tue, 14 Jun 2011 15:20:55 -0700 |
parents | 08ccee2c4dbf |
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0 | 1 /* |
2227 | 2 * Copyright (c) 1998, 2011, 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 "gc_implementation/shared/markSweep.inline.hpp" | |
27 #include "interpreter/interpreter.hpp" | |
28 #include "interpreter/rewriter.hpp" | |
29 #include "memory/universe.inline.hpp" | |
30 #include "oops/cpCacheOop.hpp" | |
31 #include "oops/objArrayOop.hpp" | |
32 #include "oops/oop.inline.hpp" | |
33 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
34 #include "runtime/handles.inline.hpp" | |
0 | 35 |
36 | |
37 // Implememtation of ConstantPoolCacheEntry | |
38 | |
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39 void ConstantPoolCacheEntry::initialize_entry(int index) { |
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40 assert(0 < index && index < 0x10000, "sanity check"); |
0 | 41 _indices = index; |
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42 assert(constant_pool_index() == index, ""); |
0 | 43 } |
44 | |
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45 void ConstantPoolCacheEntry::initialize_secondary_entry(int main_index) { |
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46 assert(0 <= main_index && main_index < 0x10000, "sanity check"); |
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47 _indices = (main_index << 16); |
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48 assert(main_entry_index() == main_index, ""); |
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49 } |
0 | 50 |
51 int ConstantPoolCacheEntry::as_flags(TosState state, bool is_final, | |
52 bool is_vfinal, bool is_volatile, | |
53 bool is_method_interface, bool is_method) { | |
54 int f = state; | |
55 | |
56 assert( state < number_of_states, "Invalid state in as_flags"); | |
57 | |
58 f <<= 1; | |
59 if (is_final) f |= 1; | |
60 f <<= 1; | |
61 if (is_vfinal) f |= 1; | |
62 f <<= 1; | |
63 if (is_volatile) f |= 1; | |
64 f <<= 1; | |
65 if (is_method_interface) f |= 1; | |
66 f <<= 1; | |
67 if (is_method) f |= 1; | |
68 f <<= ConstantPoolCacheEntry::hotSwapBit; | |
69 // Preserve existing flag bit values | |
70 #ifdef ASSERT | |
71 int old_state = ((_flags >> tosBits) & 0x0F); | |
72 assert(old_state == 0 || old_state == state, | |
73 "inconsistent cpCache flags state"); | |
74 #endif | |
75 return (_flags | f) ; | |
76 } | |
77 | |
78 void ConstantPoolCacheEntry::set_bytecode_1(Bytecodes::Code code) { | |
79 #ifdef ASSERT | |
80 // Read once. | |
81 volatile Bytecodes::Code c = bytecode_1(); | |
82 assert(c == 0 || c == code || code == 0, "update must be consistent"); | |
83 #endif | |
84 // Need to flush pending stores here before bytecode is written. | |
85 OrderAccess::release_store_ptr(&_indices, _indices | ((u_char)code << 16)); | |
86 } | |
87 | |
88 void ConstantPoolCacheEntry::set_bytecode_2(Bytecodes::Code code) { | |
89 #ifdef ASSERT | |
90 // Read once. | |
91 volatile Bytecodes::Code c = bytecode_2(); | |
92 assert(c == 0 || c == code || code == 0, "update must be consistent"); | |
93 #endif | |
94 // Need to flush pending stores here before bytecode is written. | |
95 OrderAccess::release_store_ptr(&_indices, _indices | ((u_char)code << 24)); | |
96 } | |
97 | |
1903 | 98 // Atomically sets f1 if it is still NULL, otherwise it keeps the |
99 // current value. | |
100 void ConstantPoolCacheEntry::set_f1_if_null_atomic(oop f1) { | |
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101 // Use barriers as in oop_store |
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102 oop* f1_addr = (oop*) &_f1; |
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103 update_barrier_set_pre(f1_addr, f1); |
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104 void* result = Atomic::cmpxchg_ptr(f1, f1_addr, NULL); |
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105 bool success = (result == NULL); |
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106 if (success) { |
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107 update_barrier_set((void*) f1_addr, f1); |
1903 | 108 } |
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109 } |
1903 | 110 |
0 | 111 #ifdef ASSERT |
112 // It is possible to have two different dummy methodOops created | |
113 // when the resolve code for invoke interface executes concurrently | |
114 // Hence the assertion below is weakened a bit for the invokeinterface | |
115 // case. | |
116 bool ConstantPoolCacheEntry::same_methodOop(oop cur_f1, oop f1) { | |
117 return (cur_f1 == f1 || ((methodOop)cur_f1)->name() == | |
118 ((methodOop)f1)->name() || ((methodOop)cur_f1)->signature() == | |
119 ((methodOop)f1)->signature()); | |
120 } | |
121 #endif | |
122 | |
123 // Note that concurrent update of both bytecodes can leave one of them | |
124 // reset to zero. This is harmless; the interpreter will simply re-resolve | |
125 // the damaged entry. More seriously, the memory synchronization is needed | |
126 // to flush other fields (f1, f2) completely to memory before the bytecodes | |
127 // are updated, lest other processors see a non-zero bytecode but zero f1/f2. | |
128 void ConstantPoolCacheEntry::set_field(Bytecodes::Code get_code, | |
129 Bytecodes::Code put_code, | |
130 KlassHandle field_holder, | |
131 int orig_field_index, | |
132 int field_offset, | |
133 TosState field_type, | |
134 bool is_final, | |
135 bool is_volatile) { | |
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136 set_f1(field_holder()->java_mirror()); |
0 | 137 set_f2(field_offset); |
138 // The field index is used by jvm/ti and is the index into fields() array | |
139 // in holder instanceKlass. This is scaled by instanceKlass::next_offset. | |
140 assert((orig_field_index % instanceKlass::next_offset) == 0, "wierd index"); | |
141 const int field_index = orig_field_index / instanceKlass::next_offset; | |
142 assert(field_index <= field_index_mask, | |
143 "field index does not fit in low flag bits"); | |
144 set_flags(as_flags(field_type, is_final, false, is_volatile, false, false) | | |
145 (field_index & field_index_mask)); | |
146 set_bytecode_1(get_code); | |
147 set_bytecode_2(put_code); | |
148 NOT_PRODUCT(verify(tty)); | |
149 } | |
150 | |
151 int ConstantPoolCacheEntry::field_index() const { | |
152 return (_flags & field_index_mask) * instanceKlass::next_offset; | |
153 } | |
154 | |
155 void ConstantPoolCacheEntry::set_method(Bytecodes::Code invoke_code, | |
156 methodHandle method, | |
157 int vtable_index) { | |
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158 assert(!is_secondary_entry(), ""); |
0 | 159 assert(method->interpreter_entry() != NULL, "should have been set at this point"); |
160 assert(!method->is_obsolete(), "attempt to write obsolete method to cpCache"); | |
161 bool change_to_virtual = (invoke_code == Bytecodes::_invokeinterface); | |
162 | |
163 int byte_no = -1; | |
164 bool needs_vfinal_flag = false; | |
165 switch (invoke_code) { | |
166 case Bytecodes::_invokevirtual: | |
167 case Bytecodes::_invokeinterface: { | |
168 if (method->can_be_statically_bound()) { | |
169 set_f2((intptr_t)method()); | |
170 needs_vfinal_flag = true; | |
171 } else { | |
172 assert(vtable_index >= 0, "valid index"); | |
173 set_f2(vtable_index); | |
174 } | |
175 byte_no = 2; | |
176 break; | |
177 } | |
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178 |
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179 case Bytecodes::_invokedynamic: // similar to _invokevirtual |
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180 if (TraceInvokeDynamic) { |
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181 tty->print_cr("InvokeDynamic set_method%s method="PTR_FORMAT" index=%d", |
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182 (is_secondary_entry() ? " secondary" : ""), |
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183 (intptr_t)method(), vtable_index); |
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184 method->print(); |
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185 this->print(tty, 0); |
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186 } |
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187 assert(method->can_be_statically_bound(), "must be a MH invoker method"); |
2460 | 188 assert(_f2 >= constantPoolOopDesc::CPCACHE_INDEX_TAG, "BSM index initialized"); |
1903 | 189 // SystemDictionary::find_method_handle_invoke only caches |
190 // methods which signature classes are on the boot classpath, | |
191 // otherwise the newly created method is returned. To avoid | |
192 // races in that case we store the first one coming in into the | |
193 // cp-cache atomically if it's still unset. | |
194 set_f1_if_null_atomic(method()); | |
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195 needs_vfinal_flag = false; // _f2 is not an oop |
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196 assert(!is_vfinal(), "f2 not an oop"); |
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197 byte_no = 1; // coordinate this with bytecode_number & is_resolved |
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198 break; |
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199 |
0 | 200 case Bytecodes::_invokespecial: |
201 // Preserve the value of the vfinal flag on invokevirtual bytecode | |
202 // which may be shared with this constant pool cache entry. | |
203 needs_vfinal_flag = is_resolved(Bytecodes::_invokevirtual) && is_vfinal(); | |
204 // fall through | |
205 case Bytecodes::_invokestatic: | |
206 set_f1(method()); | |
207 byte_no = 1; | |
208 break; | |
209 default: | |
210 ShouldNotReachHere(); | |
211 break; | |
212 } | |
213 | |
214 set_flags(as_flags(as_TosState(method->result_type()), | |
215 method->is_final_method(), | |
216 needs_vfinal_flag, | |
217 false, | |
218 change_to_virtual, | |
219 true)| | |
220 method()->size_of_parameters()); | |
221 | |
222 // Note: byte_no also appears in TemplateTable::resolve. | |
223 if (byte_no == 1) { | |
224 set_bytecode_1(invoke_code); | |
225 } else if (byte_no == 2) { | |
226 if (change_to_virtual) { | |
227 // NOTE: THIS IS A HACK - BE VERY CAREFUL!!! | |
228 // | |
229 // Workaround for the case where we encounter an invokeinterface, but we | |
230 // should really have an _invokevirtual since the resolved method is a | |
231 // virtual method in java.lang.Object. This is a corner case in the spec | |
232 // but is presumably legal. javac does not generate this code. | |
233 // | |
234 // We set bytecode_1() to _invokeinterface, because that is the | |
235 // bytecode # used by the interpreter to see if it is resolved. | |
236 // We set bytecode_2() to _invokevirtual. | |
237 // See also interpreterRuntime.cpp. (8/25/2000) | |
238 // Only set resolved for the invokeinterface case if method is public. | |
239 // Otherwise, the method needs to be reresolved with caller for each | |
240 // interface call. | |
241 if (method->is_public()) set_bytecode_1(invoke_code); | |
242 set_bytecode_2(Bytecodes::_invokevirtual); | |
243 } else { | |
244 set_bytecode_2(invoke_code); | |
245 } | |
246 } else { | |
247 ShouldNotReachHere(); | |
248 } | |
249 NOT_PRODUCT(verify(tty)); | |
250 } | |
251 | |
252 | |
253 void ConstantPoolCacheEntry::set_interface_call(methodHandle method, int index) { | |
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254 assert(!is_secondary_entry(), ""); |
0 | 255 klassOop interf = method->method_holder(); |
256 assert(instanceKlass::cast(interf)->is_interface(), "must be an interface"); | |
257 set_f1(interf); | |
258 set_f2(index); | |
259 set_flags(as_flags(as_TosState(method->result_type()), method->is_final_method(), false, false, false, true) | method()->size_of_parameters()); | |
260 set_bytecode_1(Bytecodes::_invokeinterface); | |
261 } | |
262 | |
263 | |
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264 void ConstantPoolCacheEntry::initialize_bootstrap_method_index_in_cache(int bsm_cache_index) { |
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265 assert(!is_secondary_entry(), "only for JVM_CONSTANT_InvokeDynamic main entry"); |
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266 assert(_f2 == 0, "initialize once"); |
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267 assert(bsm_cache_index == (int)(u2)bsm_cache_index, "oob"); |
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268 set_f2(bsm_cache_index + constantPoolOopDesc::CPCACHE_INDEX_TAG); |
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269 } |
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270 |
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271 int ConstantPoolCacheEntry::bootstrap_method_index_in_cache() { |
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272 assert(!is_secondary_entry(), "only for JVM_CONSTANT_InvokeDynamic main entry"); |
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273 intptr_t bsm_cache_index = (intptr_t) _f2 - constantPoolOopDesc::CPCACHE_INDEX_TAG; |
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274 assert(bsm_cache_index == (intptr_t)(u2)bsm_cache_index, "oob"); |
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275 return (int) bsm_cache_index; |
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276 } |
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277 |
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278 void ConstantPoolCacheEntry::set_dynamic_call(Handle call_site, methodHandle signature_invoker) { |
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279 assert(is_secondary_entry(), ""); |
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280 // NOTE: it's important that all other values are set before f1 is |
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281 // set since some users short circuit on f1 being set |
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282 // (i.e. non-null) and that may result in uninitialized values for |
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283 // other racing threads (e.g. flags). |
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284 int param_size = signature_invoker->size_of_parameters(); |
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285 assert(param_size >= 1, "method argument size must include MH.this"); |
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286 param_size -= 1; // do not count MH.this; it is not stacked for invokedynamic |
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287 bool is_final = true; |
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288 assert(signature_invoker->is_final_method(), "is_final"); |
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289 int flags = as_flags(as_TosState(signature_invoker->result_type()), is_final, false, false, false, true) | param_size; |
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290 assert(_flags == 0 || _flags == flags, "flags should be the same"); |
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291 set_flags(flags); |
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292 // do not do set_bytecode on a secondary CP cache entry |
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293 //set_bytecode_1(Bytecodes::_invokedynamic); |
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294 set_f1_if_null_atomic(call_site()); // This must be the last one to set (see NOTE above)! |
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295 } |
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296 |
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297 |
0 | 298 class LocalOopClosure: public OopClosure { |
299 private: | |
300 void (*_f)(oop*); | |
301 | |
302 public: | |
303 LocalOopClosure(void f(oop*)) { _f = f; } | |
304 virtual void do_oop(oop* o) { _f(o); } | |
113
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305 virtual void do_oop(narrowOop *o) { ShouldNotReachHere(); } |
0 | 306 }; |
307 | |
308 | |
309 void ConstantPoolCacheEntry::oops_do(void f(oop*)) { | |
310 LocalOopClosure blk(f); | |
311 oop_iterate(&blk); | |
312 } | |
313 | |
314 | |
315 void ConstantPoolCacheEntry::oop_iterate(OopClosure* blk) { | |
316 assert(in_words(size()) == 4, "check code below - may need adjustment"); | |
317 // field[1] is always oop or NULL | |
318 blk->do_oop((oop*)&_f1); | |
319 if (is_vfinal()) { | |
320 blk->do_oop((oop*)&_f2); | |
321 } | |
322 } | |
323 | |
324 | |
325 void ConstantPoolCacheEntry::oop_iterate_m(OopClosure* blk, MemRegion mr) { | |
326 assert(in_words(size()) == 4, "check code below - may need adjustment"); | |
327 // field[1] is always oop or NULL | |
328 if (mr.contains((oop *)&_f1)) blk->do_oop((oop*)&_f1); | |
329 if (is_vfinal()) { | |
330 if (mr.contains((oop *)&_f2)) blk->do_oop((oop*)&_f2); | |
331 } | |
332 } | |
333 | |
334 | |
335 void ConstantPoolCacheEntry::follow_contents() { | |
336 assert(in_words(size()) == 4, "check code below - may need adjustment"); | |
337 // field[1] is always oop or NULL | |
338 MarkSweep::mark_and_push((oop*)&_f1); | |
339 if (is_vfinal()) { | |
340 MarkSweep::mark_and_push((oop*)&_f2); | |
341 } | |
342 } | |
343 | |
344 #ifndef SERIALGC | |
345 void ConstantPoolCacheEntry::follow_contents(ParCompactionManager* cm) { | |
346 assert(in_words(size()) == 4, "check code below - may need adjustment"); | |
347 // field[1] is always oop or NULL | |
348 PSParallelCompact::mark_and_push(cm, (oop*)&_f1); | |
349 if (is_vfinal()) { | |
350 PSParallelCompact::mark_and_push(cm, (oop*)&_f2); | |
351 } | |
352 } | |
353 #endif // SERIALGC | |
354 | |
355 void ConstantPoolCacheEntry::adjust_pointers() { | |
356 assert(in_words(size()) == 4, "check code below - may need adjustment"); | |
357 // field[1] is always oop or NULL | |
358 MarkSweep::adjust_pointer((oop*)&_f1); | |
359 if (is_vfinal()) { | |
360 MarkSweep::adjust_pointer((oop*)&_f2); | |
361 } | |
362 } | |
363 | |
364 #ifndef SERIALGC | |
365 void ConstantPoolCacheEntry::update_pointers() { | |
366 assert(in_words(size()) == 4, "check code below - may need adjustment"); | |
367 // field[1] is always oop or NULL | |
368 PSParallelCompact::adjust_pointer((oop*)&_f1); | |
369 if (is_vfinal()) { | |
370 PSParallelCompact::adjust_pointer((oop*)&_f2); | |
371 } | |
372 } | |
373 #endif // SERIALGC | |
374 | |
375 // RedefineClasses() API support: | |
376 // If this constantPoolCacheEntry refers to old_method then update it | |
377 // to refer to new_method. | |
378 bool ConstantPoolCacheEntry::adjust_method_entry(methodOop old_method, | |
379 methodOop new_method, bool * trace_name_printed) { | |
380 | |
381 if (is_vfinal()) { | |
382 // virtual and final so f2() contains method ptr instead of vtable index | |
383 if (f2() == (intptr_t)old_method) { | |
384 // match old_method so need an update | |
385 _f2 = (intptr_t)new_method; | |
386 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) { | |
387 if (!(*trace_name_printed)) { | |
388 // RC_TRACE_MESG macro has an embedded ResourceMark | |
389 RC_TRACE_MESG(("adjust: name=%s", | |
390 Klass::cast(old_method->method_holder())->external_name())); | |
391 *trace_name_printed = true; | |
392 } | |
393 // RC_TRACE macro has an embedded ResourceMark | |
394 RC_TRACE(0x00400000, ("cpc vf-entry update: %s(%s)", | |
395 new_method->name()->as_C_string(), | |
396 new_method->signature()->as_C_string())); | |
397 } | |
398 | |
399 return true; | |
400 } | |
401 | |
402 // f1() is not used with virtual entries so bail out | |
403 return false; | |
404 } | |
405 | |
406 if ((oop)_f1 == NULL) { | |
407 // NULL f1() means this is a virtual entry so bail out | |
408 // We are assuming that the vtable index does not need change. | |
409 return false; | |
410 } | |
411 | |
412 if ((oop)_f1 == old_method) { | |
413 _f1 = new_method; | |
414 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) { | |
415 if (!(*trace_name_printed)) { | |
416 // RC_TRACE_MESG macro has an embedded ResourceMark | |
417 RC_TRACE_MESG(("adjust: name=%s", | |
418 Klass::cast(old_method->method_holder())->external_name())); | |
419 *trace_name_printed = true; | |
420 } | |
421 // RC_TRACE macro has an embedded ResourceMark | |
422 RC_TRACE(0x00400000, ("cpc entry update: %s(%s)", | |
423 new_method->name()->as_C_string(), | |
424 new_method->signature()->as_C_string())); | |
425 } | |
426 | |
427 return true; | |
428 } | |
429 | |
430 return false; | |
431 } | |
432 | |
433 bool ConstantPoolCacheEntry::is_interesting_method_entry(klassOop k) { | |
434 if (!is_method_entry()) { | |
435 // not a method entry so not interesting by default | |
436 return false; | |
437 } | |
438 | |
439 methodOop m = NULL; | |
440 if (is_vfinal()) { | |
441 // virtual and final so _f2 contains method ptr instead of vtable index | |
442 m = (methodOop)_f2; | |
443 } else if ((oop)_f1 == NULL) { | |
444 // NULL _f1 means this is a virtual entry so also not interesting | |
445 return false; | |
446 } else { | |
447 if (!((oop)_f1)->is_method()) { | |
448 // _f1 can also contain a klassOop for an interface | |
449 return false; | |
450 } | |
451 m = (methodOop)_f1; | |
452 } | |
453 | |
454 assert(m != NULL && m->is_method(), "sanity check"); | |
455 if (m == NULL || !m->is_method() || m->method_holder() != k) { | |
456 // robustness for above sanity checks or method is not in | |
457 // the interesting class | |
458 return false; | |
459 } | |
460 | |
461 // the method is in the interesting class so the entry is interesting | |
462 return true; | |
463 } | |
464 | |
465 void ConstantPoolCacheEntry::print(outputStream* st, int index) const { | |
466 // print separator | |
467 if (index == 0) tty->print_cr(" -------------"); | |
468 // print entry | |
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469 tty->print("%3d ("PTR_FORMAT") ", index, (intptr_t)this); |
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470 if (is_secondary_entry()) |
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471 tty->print_cr("[%5d|secondary]", main_entry_index()); |
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472 else |
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473 tty->print_cr("[%02x|%02x|%5d]", bytecode_2(), bytecode_1(), constant_pool_index()); |
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474 tty->print_cr(" [ "PTR_FORMAT"]", (intptr_t)(oop)_f1); |
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475 tty->print_cr(" [ "PTR_FORMAT"]", (intptr_t)_f2); |
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476 tty->print_cr(" [ "PTR_FORMAT"]", (intptr_t)_flags); |
0 | 477 tty->print_cr(" -------------"); |
478 } | |
479 | |
480 void ConstantPoolCacheEntry::verify(outputStream* st) const { | |
481 // not implemented yet | |
482 } | |
483 | |
484 // Implementation of ConstantPoolCache | |
485 | |
486 void constantPoolCacheOopDesc::initialize(intArray& inverse_index_map) { | |
487 assert(inverse_index_map.length() == length(), "inverse index map must have same length as cache"); | |
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488 for (int i = 0; i < length(); i++) { |
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489 ConstantPoolCacheEntry* e = entry_at(i); |
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490 int original_index = inverse_index_map[i]; |
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491 if ((original_index & Rewriter::_secondary_entry_tag) != 0) { |
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492 int main_index = (original_index - Rewriter::_secondary_entry_tag); |
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493 assert(!entry_at(main_index)->is_secondary_entry(), "valid main index"); |
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494 e->initialize_secondary_entry(main_index); |
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495 } else { |
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496 e->initialize_entry(original_index); |
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497 } |
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498 assert(entry_at(i) == e, "sanity"); |
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499 } |
0 | 500 } |
501 | |
502 // RedefineClasses() API support: | |
503 // If any entry of this constantPoolCache points to any of | |
504 // old_methods, replace it with the corresponding new_method. | |
505 void constantPoolCacheOopDesc::adjust_method_entries(methodOop* old_methods, methodOop* new_methods, | |
506 int methods_length, bool * trace_name_printed) { | |
507 | |
508 if (methods_length == 0) { | |
509 // nothing to do if there are no methods | |
510 return; | |
511 } | |
512 | |
513 // get shorthand for the interesting class | |
514 klassOop old_holder = old_methods[0]->method_holder(); | |
515 | |
516 for (int i = 0; i < length(); i++) { | |
517 if (!entry_at(i)->is_interesting_method_entry(old_holder)) { | |
518 // skip uninteresting methods | |
519 continue; | |
520 } | |
521 | |
522 // The constantPoolCache contains entries for several different | |
523 // things, but we only care about methods. In fact, we only care | |
524 // about methods in the same class as the one that contains the | |
525 // old_methods. At this point, we have an interesting entry. | |
526 | |
527 for (int j = 0; j < methods_length; j++) { | |
528 methodOop old_method = old_methods[j]; | |
529 methodOop new_method = new_methods[j]; | |
530 | |
531 if (entry_at(i)->adjust_method_entry(old_method, new_method, | |
532 trace_name_printed)) { | |
533 // current old_method matched this entry and we updated it so | |
534 // break out and get to the next interesting entry if there one | |
535 break; | |
536 } | |
537 } | |
538 } | |
539 } |