Mercurial > hg > graal-compiler
annotate src/share/vm/interpreter/bytecodeTracer.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | b20d64f83668 |
| children | f16e75e0cf11 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 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/bytecodeHistogram.hpp" | |
| 27 #include "interpreter/bytecodeTracer.hpp" | |
| 28 #include "interpreter/bytecodes.hpp" | |
| 29 #include "interpreter/interpreter.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "memory/resourceArea.hpp" | |
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32 #include "oops/methodData.hpp" |
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33 #include "oops/method.hpp" |
| 1972 | 34 #include "runtime/mutexLocker.hpp" |
| 35 #include "runtime/timer.hpp" | |
| 0 | 36 |
| 37 | |
| 38 #ifndef PRODUCT | |
| 39 | |
| 40 // Standard closure for BytecodeTracer: prints the current bytecode | |
| 41 // and its attributes using bytecode-specific information. | |
| 42 | |
| 43 class BytecodePrinter: public BytecodeClosure { | |
| 44 private: | |
| 45 // %%% This field is not GC-ed, and so can contain garbage | |
| 46 // between critical sections. Use only pointer-comparison | |
| 47 // operations on the pointer, except within a critical section. | |
| 48 // (Also, ensure that occasional false positives are benign.) | |
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49 Method* _current_method; |
| 0 | 50 bool _is_wide; |
| 1565 | 51 Bytecodes::Code _code; |
| 0 | 52 address _next_pc; // current decoding position |
| 53 | |
| 54 void align() { _next_pc = (address)round_to((intptr_t)_next_pc, sizeof(jint)); } | |
| 55 int get_byte() { return *(jbyte*) _next_pc++; } // signed | |
| 56 short get_short() { short i=Bytes::get_Java_u2(_next_pc); _next_pc+=2; return i; } | |
| 57 int get_int() { int i=Bytes::get_Java_u4(_next_pc); _next_pc+=4; return i; } | |
| 58 | |
| 1565 | 59 int get_index_u1() { return *(address)_next_pc++; } |
| 60 int get_index_u2() { int i=Bytes::get_Java_u2(_next_pc); _next_pc+=2; return i; } | |
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61 int get_index_u1_cpcache() { return get_index_u1() + ConstantPool::CPCACHE_INDEX_TAG; } |
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62 int get_index_u2_cpcache() { int i=Bytes::get_native_u2(_next_pc); _next_pc+=2; return i + ConstantPool::CPCACHE_INDEX_TAG; } |
| 1565 | 63 int get_index_u4() { int i=Bytes::get_native_u4(_next_pc); _next_pc+=4; return i; } |
| 64 int get_index_special() { return (is_wide()) ? get_index_u2() : get_index_u1(); } | |
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65 Method* method() { return _current_method; } |
| 0 | 66 bool is_wide() { return _is_wide; } |
| 1565 | 67 Bytecodes::Code raw_code() { return Bytecodes::Code(_code); } |
| 0 | 68 |
| 69 | |
| 1565 | 70 bool check_index(int i, int& cp_index, outputStream* st = tty); |
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71 bool check_cp_cache_index(int i, int& cp_index, outputStream* st = tty); |
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72 bool check_obj_index(int i, int& cp_index, outputStream* st = tty); |
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73 bool check_invokedynamic_index(int i, int& cp_index, outputStream* st = tty); |
| 0 | 74 void print_constant(int i, outputStream* st = tty); |
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75 void print_field_or_method(int i, outputStream* st = tty); |
| 1602 | 76 void print_field_or_method(int orig_i, int i, outputStream* st = tty); |
| 1565 | 77 void print_attributes(int bci, outputStream* st = tty); |
| 0 | 78 void bytecode_epilog(int bci, outputStream* st = tty); |
| 79 | |
| 80 public: | |
| 81 BytecodePrinter() { | |
| 82 _is_wide = false; | |
| 1565 | 83 _code = Bytecodes::_illegal; |
| 0 | 84 } |
| 85 | |
| 86 // This method is called while executing the raw bytecodes, so none of | |
| 87 // the adjustments that BytecodeStream performs applies. | |
| 88 void trace(methodHandle method, address bcp, uintptr_t tos, uintptr_t tos2, outputStream* st) { | |
| 89 ResourceMark rm; | |
| 90 if (_current_method != method()) { | |
| 91 // Note 1: This code will not work as expected with true MT/MP. | |
| 92 // Need an explicit lock or a different solution. | |
| 93 // It is possible for this block to be skipped, if a garbage | |
| 94 // _current_method pointer happens to have the same bits as | |
| 95 // the incoming method. We could lose a line of trace output. | |
| 96 // This is acceptable in a debug-only feature. | |
| 97 st->cr(); | |
| 3960 | 98 st->print("[%ld] ", (long) Thread::current()->osthread()->thread_id()); |
| 0 | 99 method->print_name(st); |
| 100 st->cr(); | |
| 101 _current_method = method(); | |
| 102 } | |
| 103 Bytecodes::Code code; | |
| 104 if (is_wide()) { | |
| 105 // bcp wasn't advanced if previous bytecode was _wide. | |
| 2142 | 106 code = Bytecodes::code_at(method(), bcp+1); |
| 0 | 107 } else { |
| 2142 | 108 code = Bytecodes::code_at(method(), bcp); |
| 0 | 109 } |
| 1565 | 110 _code = code; |
| 111 int bci = bcp - method->code_base(); | |
| 3960 | 112 st->print("[%ld] ", (long) Thread::current()->osthread()->thread_id()); |
| 0 | 113 if (Verbose) { |
| 114 st->print("%8d %4d " INTPTR_FORMAT " " INTPTR_FORMAT " %s", | |
| 115 BytecodeCounter::counter_value(), bci, tos, tos2, Bytecodes::name(code)); | |
| 116 } else { | |
| 117 st->print("%8d %4d %s", | |
| 118 BytecodeCounter::counter_value(), bci, Bytecodes::name(code)); | |
| 119 } | |
| 120 _next_pc = is_wide() ? bcp+2 : bcp+1; | |
| 1565 | 121 print_attributes(bci); |
| 0 | 122 // Set is_wide for the next one, since the caller of this doesn't skip |
| 123 // the next bytecode. | |
| 124 _is_wide = (code == Bytecodes::_wide); | |
| 1565 | 125 _code = Bytecodes::_illegal; |
| 0 | 126 } |
| 127 | |
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128 // Used for Method*::print_codes(). The input bcp comes from |
| 0 | 129 // BytecodeStream, which will skip wide bytecodes. |
| 130 void trace(methodHandle method, address bcp, outputStream* st) { | |
| 131 _current_method = method(); | |
| 132 ResourceMark rm; | |
| 2142 | 133 Bytecodes::Code code = Bytecodes::code_at(method(), bcp); |
| 0 | 134 // Set is_wide |
| 135 _is_wide = (code == Bytecodes::_wide); | |
| 136 if (is_wide()) { | |
| 2142 | 137 code = Bytecodes::code_at(method(), bcp+1); |
| 0 | 138 } |
| 1565 | 139 _code = code; |
| 0 | 140 int bci = bcp - method->code_base(); |
| 141 // Print bytecode index and name | |
| 142 if (is_wide()) { | |
| 143 st->print("%d %s_w", bci, Bytecodes::name(code)); | |
| 144 } else { | |
| 145 st->print("%d %s", bci, Bytecodes::name(code)); | |
| 146 } | |
| 147 _next_pc = is_wide() ? bcp+2 : bcp+1; | |
| 1565 | 148 print_attributes(bci, st); |
| 0 | 149 bytecode_epilog(bci, st); |
| 150 } | |
| 151 }; | |
| 152 | |
| 153 | |
| 154 // Implementation of BytecodeTracer | |
| 155 | |
| 156 // %%% This set_closure thing seems overly general, given that | |
| 157 // nobody uses it. Also, if BytecodePrinter weren't hidden | |
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158 // then Method* could use instances of it directly and it |
| 0 | 159 // would be easier to remove races on _current_method and bcp. |
| 160 // Since this is not product functionality, we can defer cleanup. | |
| 161 | |
| 162 BytecodeClosure* BytecodeTracer::_closure = NULL; | |
| 163 | |
| 164 static BytecodePrinter std_closure; | |
| 165 BytecodeClosure* BytecodeTracer::std_closure() { | |
| 166 return &::std_closure; | |
| 167 } | |
| 168 | |
| 169 | |
| 170 void BytecodeTracer::trace(methodHandle method, address bcp, uintptr_t tos, uintptr_t tos2, outputStream* st) { | |
| 171 if (TraceBytecodes && BytecodeCounter::counter_value() >= TraceBytecodesAt) { | |
| 172 ttyLocker ttyl; // 5065316: keep the following output coherent | |
| 173 // The ttyLocker also prevents races between two threads | |
| 174 // trying to use the single instance of BytecodePrinter. | |
| 175 // Using the ttyLocker prevents the system from coming to | |
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176 // a safepoint within this code, which is sensitive to Method* |
| 0 | 177 // movement. |
| 178 // | |
| 179 // There used to be a leaf mutex here, but the ttyLocker will | |
| 180 // work just as well, as long as the printing operations never block. | |
| 181 // | |
| 182 // We put the locker on the static trace method, not the | |
| 183 // virtual one, because the clients of this module go through | |
| 184 // the static method. | |
| 185 _closure->trace(method, bcp, tos, tos2, st); | |
| 186 } | |
| 187 } | |
| 188 | |
| 189 void BytecodeTracer::trace(methodHandle method, address bcp, outputStream* st) { | |
| 190 ttyLocker ttyl; // 5065316: keep the following output coherent | |
| 191 _closure->trace(method, bcp, st); | |
| 192 } | |
| 193 | |
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194 void print_symbol(Symbol* sym, outputStream* st) { |
| 1602 | 195 char buf[40]; |
| 196 int len = sym->utf8_length(); | |
| 197 if (len >= (int)sizeof(buf)) { | |
| 198 st->print_cr(" %s...[%d]", sym->as_C_string(buf, sizeof(buf)), len); | |
| 199 } else { | |
| 200 st->print(" "); | |
| 201 sym->print_on(st); st->cr(); | |
| 202 } | |
| 203 } | |
| 204 | |
| 0 | 205 void print_oop(oop value, outputStream* st) { |
| 206 if (value == NULL) { | |
| 207 st->print_cr(" NULL"); | |
| 1602 | 208 } else if (java_lang_String::is_instance(value)) { |
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209 char buf[40]; |
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210 int len = java_lang_String::utf8_length(value); |
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211 java_lang_String::as_utf8_string(value, buf, sizeof(buf)); |
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212 if (len >= (int)sizeof(buf)) { |
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213 st->print_cr(" %s...[%d]", buf, len); |
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214 } else { |
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215 st->print_cr(" %s", buf); |
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216 } |
| 1602 | 217 } else { |
| 218 st->print_cr(" " PTR_FORMAT, (intptr_t) value); | |
| 0 | 219 } |
| 220 } | |
| 221 | |
| 1565 | 222 bool BytecodePrinter::check_index(int i, int& cp_index, outputStream* st) { |
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223 ConstantPool* constants = method()->constants(); |
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224 int ilimit = constants->length(); |
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225 Bytecodes::Code code = raw_code(); |
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226 |
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227 ConstantPoolCache* cache = NULL; |
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228 if (Bytecodes::uses_cp_cache(code)) { |
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229 bool okay = true; |
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230 switch (code) { |
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231 case Bytecodes::_fast_aldc: |
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232 case Bytecodes::_fast_aldc_w: |
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233 okay = check_obj_index(i, cp_index, st); |
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234 break; |
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235 case Bytecodes::_invokedynamic: |
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236 okay = check_invokedynamic_index(i, cp_index, st); |
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237 break; |
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238 default: |
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239 okay = check_cp_cache_index(i, cp_index, st); |
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240 break; |
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241 } |
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242 if (!okay) return false; |
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243 } |
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244 |
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245 |
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246 // check cp index |
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247 if (cp_index >= 0 && cp_index < ilimit) { |
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248 if (WizardMode) st->print(" cp[%d]", cp_index); |
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249 return true; |
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250 } |
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251 |
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252 st->print_cr(" CP[%d] not in CP", cp_index); |
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253 return false; |
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254 } |
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255 |
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256 bool BytecodePrinter::check_cp_cache_index(int i, int& cp_index, outputStream* st) { |
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257 ConstantPool* constants = method()->constants(); |
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258 int ilimit = constants->length(), climit = 0; |
| 1565 | 259 Bytecodes::Code code = raw_code(); |
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260 |
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261 ConstantPoolCache* cache = constants->cache(); |
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262 // If rewriter hasn't run, the index is the cp_index |
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263 if (cache == NULL) { |
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264 cp_index = i; |
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265 return true; |
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266 } |
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267 //climit = cache->length(); // %%% private! |
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268 size_t size = cache->size() * HeapWordSize; |
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269 size -= sizeof(ConstantPoolCache); |
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270 size /= sizeof(ConstantPoolCacheEntry); |
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271 climit = (int) size; |
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272 |
| 1565 | 273 #ifdef ASSERT |
| 274 { | |
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275 const int CPCACHE_INDEX_TAG = ConstantPool::CPCACHE_INDEX_TAG; |
| 1565 | 276 if (i >= CPCACHE_INDEX_TAG && i < climit + CPCACHE_INDEX_TAG) { |
| 277 i -= CPCACHE_INDEX_TAG; | |
| 278 } else { | |
| 279 st->print_cr(" CP[%d] missing bias?", i); | |
| 280 return false; | |
| 281 } | |
| 282 } | |
| 283 #endif //ASSERT | |
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284 if (i >= 0 && i < climit) { |
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285 cp_index = cache->entry_at(i)->constant_pool_index(); |
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286 } else { |
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287 st->print_cr(" not in CP[*]?", i); |
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288 return false; |
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289 } |
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290 return true; |
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291 } |
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292 |
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293 |
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294 bool BytecodePrinter::check_obj_index(int i, int& cp_index, outputStream* st) { |
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295 ConstantPool* constants = method()->constants(); |
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296 i -= ConstantPool::CPCACHE_INDEX_TAG; |
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297 |
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298 if (i >= 0 && i < constants->resolved_references()->length()) { |
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299 cp_index = constants->object_to_cp_index(i); |
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300 return true; |
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301 } else { |
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302 st->print_cr(" not in OBJ[*]?", i); |
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303 return false; |
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304 } |
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305 } |
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306 |
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307 |
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308 bool BytecodePrinter::check_invokedynamic_index(int i, int& cp_index, outputStream* st) { |
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309 ConstantPool* constants = method()->constants(); |
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310 assert(ConstantPool::is_invokedynamic_index(i), "not secondary index?"); |
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311 i = ConstantPool::decode_invokedynamic_index(i) + ConstantPool::CPCACHE_INDEX_TAG; |
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312 |
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313 return check_cp_cache_index(i, cp_index, st); |
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314 } |
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315 |
| 0 | 316 void BytecodePrinter::print_constant(int i, outputStream* st) { |
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317 int orig_i = i; |
| 1565 | 318 if (!check_index(orig_i, i, st)) return; |
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319 |
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320 ConstantPool* constants = method()->constants(); |
| 0 | 321 constantTag tag = constants->tag_at(i); |
| 322 | |
| 323 if (tag.is_int()) { | |
| 324 st->print_cr(" " INT32_FORMAT, constants->int_at(i)); | |
| 325 } else if (tag.is_long()) { | |
| 326 st->print_cr(" " INT64_FORMAT, constants->long_at(i)); | |
| 327 } else if (tag.is_float()) { | |
| 328 st->print_cr(" %f", constants->float_at(i)); | |
| 329 } else if (tag.is_double()) { | |
| 330 st->print_cr(" %f", constants->double_at(i)); | |
| 331 } else if (tag.is_string()) { | |
| 1602 | 332 const char* string = constants->string_at_noresolve(i); |
| 333 st->print_cr(" %s", string); | |
| 0 | 334 } else if (tag.is_klass()) { |
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335 st->print_cr(" %s", constants->resolved_klass_at(i)->external_name()); |
| 0 | 336 } else if (tag.is_unresolved_klass()) { |
| 337 st->print_cr(" <unresolved klass at %d>", i); | |
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338 } else if (tag.is_object()) { |
| 1602 | 339 st->print(" <Object>"); |
| 340 print_oop(constants->object_at(i), st); | |
| 341 } else if (tag.is_method_type()) { | |
| 342 int i2 = constants->method_type_index_at(i); | |
| 343 st->print(" <MethodType> %d", i2); | |
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344 print_symbol(constants->symbol_at(i2), st); |
| 1602 | 345 } else if (tag.is_method_handle()) { |
| 346 int kind = constants->method_handle_ref_kind_at(i); | |
| 347 int i2 = constants->method_handle_index_at(i); | |
| 348 st->print(" <MethodHandle of kind %d>", kind, i2); | |
| 349 print_field_or_method(-i, i2, st); | |
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350 } else { |
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351 st->print_cr(" bad tag=%d at %d", tag.value(), i); |
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352 } |
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353 } |
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354 |
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355 void BytecodePrinter::print_field_or_method(int i, outputStream* st) { |
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356 int orig_i = i; |
| 1565 | 357 if (!check_index(orig_i, i, st)) return; |
| 1602 | 358 print_field_or_method(orig_i, i, st); |
| 359 } | |
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360 |
| 1602 | 361 void BytecodePrinter::print_field_or_method(int orig_i, int i, outputStream* st) { |
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362 ConstantPool* constants = method()->constants(); |
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363 constantTag tag = constants->tag_at(i); |
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364 |
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365 bool has_klass = true; |
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366 |
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367 switch (tag.value()) { |
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368 case JVM_CONSTANT_InterfaceMethodref: |
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369 case JVM_CONSTANT_Methodref: |
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370 case JVM_CONSTANT_Fieldref: |
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371 break; |
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372 case JVM_CONSTANT_NameAndType: |
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373 case JVM_CONSTANT_InvokeDynamic: |
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374 has_klass = false; |
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375 break; |
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376 default: |
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377 st->print_cr(" bad tag=%d at %d", tag.value(), i); |
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378 return; |
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379 } |
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380 |
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381 Symbol* name = constants->uncached_name_ref_at(i); |
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382 Symbol* signature = constants->uncached_signature_ref_at(i); |
| 1602 | 383 const char* sep = (tag.is_field() ? "/" : ""); |
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384 if (has_klass) { |
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385 Symbol* klass = constants->klass_name_at(constants->uncached_klass_ref_index_at(i)); |
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386 st->print_cr(" %d <%s.%s%s%s> ", i, klass->as_C_string(), name->as_C_string(), sep, signature->as_C_string()); |
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387 } else { |
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388 if (tag.is_invoke_dynamic()) { |
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389 int bsm = constants->invoke_dynamic_bootstrap_method_ref_index_at(i); |
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390 st->print(" bsm=%d", bsm); |
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391 } |
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392 st->print_cr(" %d <%s%s%s>", i, name->as_C_string(), sep, signature->as_C_string()); |
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393 } |
| 0 | 394 } |
| 395 | |
| 396 | |
| 1565 | 397 void BytecodePrinter::print_attributes(int bci, outputStream* st) { |
| 0 | 398 // Show attributes of pre-rewritten codes |
| 1565 | 399 Bytecodes::Code code = Bytecodes::java_code(raw_code()); |
| 0 | 400 // If the code doesn't have any fields there's nothing to print. |
| 401 // note this is ==1 because the tableswitch and lookupswitch are | |
| 402 // zero size (for some reason) and we want to print stuff out for them. | |
| 403 if (Bytecodes::length_for(code) == 1) { | |
| 404 st->cr(); | |
| 405 return; | |
| 406 } | |
| 407 | |
| 408 switch(code) { | |
| 409 // Java specific bytecodes only matter. | |
| 410 case Bytecodes::_bipush: | |
| 411 st->print_cr(" " INT32_FORMAT, get_byte()); | |
| 412 break; | |
| 413 case Bytecodes::_sipush: | |
| 414 st->print_cr(" " INT32_FORMAT, get_short()); | |
| 415 break; | |
| 416 case Bytecodes::_ldc: | |
| 1602 | 417 if (Bytecodes::uses_cp_cache(raw_code())) { |
| 418 print_constant(get_index_u1_cpcache(), st); | |
| 419 } else { | |
| 420 print_constant(get_index_u1(), st); | |
| 421 } | |
| 0 | 422 break; |
| 423 | |
| 424 case Bytecodes::_ldc_w: | |
| 425 case Bytecodes::_ldc2_w: | |
| 1602 | 426 if (Bytecodes::uses_cp_cache(raw_code())) { |
| 427 print_constant(get_index_u2_cpcache(), st); | |
| 428 } else { | |
| 429 print_constant(get_index_u2(), st); | |
| 430 } | |
| 0 | 431 break; |
| 432 | |
| 433 case Bytecodes::_iload: | |
| 434 case Bytecodes::_lload: | |
| 435 case Bytecodes::_fload: | |
| 436 case Bytecodes::_dload: | |
| 437 case Bytecodes::_aload: | |
| 438 case Bytecodes::_istore: | |
| 439 case Bytecodes::_lstore: | |
| 440 case Bytecodes::_fstore: | |
| 441 case Bytecodes::_dstore: | |
| 442 case Bytecodes::_astore: | |
| 443 st->print_cr(" #%d", get_index_special()); | |
| 444 break; | |
| 445 | |
| 446 case Bytecodes::_iinc: | |
| 447 { int index = get_index_special(); | |
| 448 jint offset = is_wide() ? get_short(): get_byte(); | |
| 449 st->print_cr(" #%d " INT32_FORMAT, index, offset); | |
| 450 } | |
| 451 break; | |
| 452 | |
| 453 case Bytecodes::_newarray: { | |
| 1565 | 454 BasicType atype = (BasicType)get_index_u1(); |
| 0 | 455 const char* str = type2name(atype); |
| 456 if (str == NULL || atype == T_OBJECT || atype == T_ARRAY) { | |
| 457 assert(false, "Unidentified basic type"); | |
| 458 } | |
| 459 st->print_cr(" %s", str); | |
| 460 } | |
| 461 break; | |
| 462 case Bytecodes::_anewarray: { | |
| 1565 | 463 int klass_index = get_index_u2(); |
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464 ConstantPool* constants = method()->constants(); |
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465 Symbol* name = constants->klass_name_at(klass_index); |
| 0 | 466 st->print_cr(" %s ", name->as_C_string()); |
| 467 } | |
| 468 break; | |
| 469 case Bytecodes::_multianewarray: { | |
| 1565 | 470 int klass_index = get_index_u2(); |
| 471 int nof_dims = get_index_u1(); | |
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472 ConstantPool* constants = method()->constants(); |
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473 Symbol* name = constants->klass_name_at(klass_index); |
| 0 | 474 st->print_cr(" %s %d", name->as_C_string(), nof_dims); |
| 475 } | |
| 476 break; | |
| 477 | |
| 478 case Bytecodes::_ifeq: | |
| 479 case Bytecodes::_ifnull: | |
| 480 case Bytecodes::_iflt: | |
| 481 case Bytecodes::_ifle: | |
| 482 case Bytecodes::_ifne: | |
| 483 case Bytecodes::_ifnonnull: | |
| 484 case Bytecodes::_ifgt: | |
| 485 case Bytecodes::_ifge: | |
| 486 case Bytecodes::_if_icmpeq: | |
| 487 case Bytecodes::_if_icmpne: | |
| 488 case Bytecodes::_if_icmplt: | |
| 489 case Bytecodes::_if_icmpgt: | |
| 490 case Bytecodes::_if_icmple: | |
| 491 case Bytecodes::_if_icmpge: | |
| 492 case Bytecodes::_if_acmpeq: | |
| 493 case Bytecodes::_if_acmpne: | |
| 494 case Bytecodes::_goto: | |
| 495 case Bytecodes::_jsr: | |
| 496 st->print_cr(" %d", bci + get_short()); | |
| 497 break; | |
| 498 | |
| 499 case Bytecodes::_goto_w: | |
| 500 case Bytecodes::_jsr_w: | |
| 501 st->print_cr(" %d", bci + get_int()); | |
| 502 break; | |
| 503 | |
| 504 case Bytecodes::_ret: st->print_cr(" %d", get_index_special()); break; | |
| 505 | |
| 506 case Bytecodes::_tableswitch: | |
| 507 { align(); | |
| 508 int default_dest = bci + get_int(); | |
| 509 int lo = get_int(); | |
| 510 int hi = get_int(); | |
| 511 int len = hi - lo + 1; | |
| 512 jint* dest = NEW_RESOURCE_ARRAY(jint, len); | |
| 513 for (int i = 0; i < len; i++) { | |
| 514 dest[i] = bci + get_int(); | |
| 515 } | |
| 516 st->print(" %d " INT32_FORMAT " " INT32_FORMAT " ", | |
| 517 default_dest, lo, hi); | |
| 518 int first = true; | |
| 519 for (int ll = lo; ll <= hi; ll++, first = false) { | |
| 520 int idx = ll - lo; | |
| 521 const char *format = first ? " %d:" INT32_FORMAT " (delta: %d)" : | |
| 522 ", %d:" INT32_FORMAT " (delta: %d)"; | |
| 523 st->print(format, ll, dest[idx], dest[idx]-bci); | |
| 524 } | |
| 525 st->cr(); | |
| 526 } | |
| 527 break; | |
| 528 case Bytecodes::_lookupswitch: | |
| 529 { align(); | |
| 530 int default_dest = bci + get_int(); | |
| 531 int len = get_int(); | |
| 532 jint* key = NEW_RESOURCE_ARRAY(jint, len); | |
| 533 jint* dest = NEW_RESOURCE_ARRAY(jint, len); | |
| 534 for (int i = 0; i < len; i++) { | |
| 535 key [i] = get_int(); | |
| 536 dest[i] = bci + get_int(); | |
| 537 }; | |
| 538 st->print(" %d %d ", default_dest, len); | |
| 539 bool first = true; | |
| 540 for (int ll = 0; ll < len; ll++, first = false) { | |
| 541 const char *format = first ? " " INT32_FORMAT ":" INT32_FORMAT : | |
| 542 ", " INT32_FORMAT ":" INT32_FORMAT ; | |
| 543 st->print(format, key[ll], dest[ll]); | |
| 544 } | |
| 545 st->cr(); | |
| 546 } | |
| 547 break; | |
| 548 | |
| 549 case Bytecodes::_putstatic: | |
| 550 case Bytecodes::_getstatic: | |
| 551 case Bytecodes::_putfield: | |
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552 case Bytecodes::_getfield: |
| 1565 | 553 print_field_or_method(get_index_u2_cpcache(), st); |
| 0 | 554 break; |
| 555 | |
| 556 case Bytecodes::_invokevirtual: | |
| 557 case Bytecodes::_invokespecial: | |
| 558 case Bytecodes::_invokestatic: | |
| 1565 | 559 print_field_or_method(get_index_u2_cpcache(), st); |
| 0 | 560 break; |
| 561 | |
| 562 case Bytecodes::_invokeinterface: | |
| 1565 | 563 { int i = get_index_u2_cpcache(); |
| 564 int n = get_index_u1(); | |
| 565 get_byte(); // ignore zero byte | |
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566 print_field_or_method(i, st); |
| 0 | 567 } |
| 568 break; | |
| 569 | |
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570 case Bytecodes::_invokedynamic: |
| 1565 | 571 print_field_or_method(get_index_u4(), st); |
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572 break; |
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573 |
| 0 | 574 case Bytecodes::_new: |
| 575 case Bytecodes::_checkcast: | |
| 576 case Bytecodes::_instanceof: | |
| 1565 | 577 { int i = get_index_u2(); |
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578 ConstantPool* constants = method()->constants(); |
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579 Symbol* name = constants->klass_name_at(i); |
| 0 | 580 st->print_cr(" %d <%s>", i, name->as_C_string()); |
| 581 } | |
| 582 break; | |
| 583 | |
| 584 case Bytecodes::_wide: | |
| 585 // length is zero not one, but printed with no more info. | |
| 586 break; | |
| 587 | |
| 588 default: | |
| 589 ShouldNotReachHere(); | |
| 590 break; | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 | |
| 595 void BytecodePrinter::bytecode_epilog(int bci, outputStream* st) { | |
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596 MethodData* mdo = method()->method_data(); |
| 0 | 597 if (mdo != NULL) { |
| 598 ProfileData* data = mdo->bci_to_data(bci); | |
| 599 if (data != NULL) { | |
| 600 st->print(" %d", mdo->dp_to_di(data->dp())); | |
| 601 st->fill_to(6); | |
| 602 data->print_data_on(st); | |
| 603 } | |
| 604 } | |
| 605 } | |
| 606 #endif // PRODUCT |