Mon, 28 Feb 2011 06:07:12 -0800
7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
Reviewed-by: never, bdelsart
duke@435 | 1 | /* |
stefank@2314 | 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 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "code/debugInfoRec.hpp" |
stefank@2314 | 27 | #include "code/scopeDesc.hpp" |
stefank@2314 | 28 | #include "prims/jvmtiExport.hpp" |
duke@435 | 29 | |
duke@435 | 30 | // Private definition. |
duke@435 | 31 | // There is one DIR_Chunk for each scope and values array. |
duke@435 | 32 | // A chunk can potentially be used more than once. |
duke@435 | 33 | // We keep track of these chunks in order to detect |
duke@435 | 34 | // repetition and enable sharing. |
duke@435 | 35 | class DIR_Chunk { |
duke@435 | 36 | friend class DebugInformationRecorder; |
duke@435 | 37 | int _offset; // location in the stream of this scope |
duke@435 | 38 | int _length; // number of bytes in the stream |
duke@435 | 39 | int _hash; // hash of stream bytes (for quicker reuse) |
duke@435 | 40 | |
duke@435 | 41 | void* operator new(size_t ignore, DebugInformationRecorder* dir) { |
duke@435 | 42 | assert(ignore == sizeof(DIR_Chunk), ""); |
duke@435 | 43 | if (dir->_next_chunk >= dir->_next_chunk_limit) { |
duke@435 | 44 | const int CHUNK = 100; |
duke@435 | 45 | dir->_next_chunk = NEW_RESOURCE_ARRAY(DIR_Chunk, CHUNK); |
duke@435 | 46 | dir->_next_chunk_limit = dir->_next_chunk + CHUNK; |
duke@435 | 47 | } |
duke@435 | 48 | return dir->_next_chunk++; |
duke@435 | 49 | } |
duke@435 | 50 | |
duke@435 | 51 | DIR_Chunk(int offset, int length, DebugInformationRecorder* dir) { |
duke@435 | 52 | _offset = offset; |
duke@435 | 53 | _length = length; |
duke@435 | 54 | unsigned int hash = 0; |
duke@435 | 55 | address p = dir->stream()->buffer() + _offset; |
duke@435 | 56 | for (int i = 0; i < length; i++) { |
duke@435 | 57 | if (i == 6) break; |
duke@435 | 58 | hash *= 127; |
duke@435 | 59 | hash += p[i]; |
duke@435 | 60 | } |
duke@435 | 61 | _hash = hash; |
duke@435 | 62 | } |
duke@435 | 63 | |
duke@435 | 64 | DIR_Chunk* find_match(GrowableArray<DIR_Chunk*>* arr, |
duke@435 | 65 | int start_index, |
duke@435 | 66 | DebugInformationRecorder* dir) { |
duke@435 | 67 | int end_index = arr->length(); |
duke@435 | 68 | int hash = this->_hash, length = this->_length; |
duke@435 | 69 | address buf = dir->stream()->buffer(); |
duke@435 | 70 | for (int i = end_index; --i >= start_index; ) { |
duke@435 | 71 | DIR_Chunk* that = arr->at(i); |
duke@435 | 72 | if (hash == that->_hash && |
duke@435 | 73 | length == that->_length && |
duke@435 | 74 | 0 == memcmp(buf + this->_offset, buf + that->_offset, length)) { |
duke@435 | 75 | return that; |
duke@435 | 76 | } |
duke@435 | 77 | } |
duke@435 | 78 | return NULL; |
duke@435 | 79 | } |
duke@435 | 80 | }; |
duke@435 | 81 | |
duke@435 | 82 | static inline bool compute_recording_non_safepoints() { |
duke@435 | 83 | if (JvmtiExport::should_post_compiled_method_load() |
duke@435 | 84 | && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
duke@435 | 85 | // The default value of this flag is taken to be true, |
duke@435 | 86 | // if JVMTI is looking at nmethod codes. |
duke@435 | 87 | // We anticipate that JVMTI may wish to participate in profiling. |
duke@435 | 88 | return true; |
duke@435 | 89 | } |
duke@435 | 90 | |
duke@435 | 91 | // If the flag is set manually, use it, whether true or false. |
duke@435 | 92 | // Otherwise, if JVMTI is not in the picture, use the default setting. |
duke@435 | 93 | // (This is true in debug, just for the exercise, false in product mode.) |
duke@435 | 94 | return DebugNonSafepoints; |
duke@435 | 95 | } |
duke@435 | 96 | |
duke@435 | 97 | DebugInformationRecorder::DebugInformationRecorder(OopRecorder* oop_recorder) |
duke@435 | 98 | : _recording_non_safepoints(compute_recording_non_safepoints()) |
duke@435 | 99 | { |
duke@435 | 100 | _pcs_size = 100; |
duke@435 | 101 | _pcs = NEW_RESOURCE_ARRAY(PcDesc, _pcs_size); |
duke@435 | 102 | _pcs_length = 0; |
duke@435 | 103 | |
duke@435 | 104 | _prev_safepoint_pc = PcDesc::lower_offset_limit; |
duke@435 | 105 | |
duke@435 | 106 | _stream = new DebugInfoWriteStream(this, 10 * K); |
duke@435 | 107 | // make sure that there is no stream_decode_offset that is zero |
duke@435 | 108 | _stream->write_byte((jbyte)0xFF); |
duke@435 | 109 | |
duke@435 | 110 | // make sure that we can distinguish the value "serialized_null" from offsets |
duke@435 | 111 | assert(_stream->position() > serialized_null, "sanity"); |
duke@435 | 112 | |
duke@435 | 113 | _oop_recorder = oop_recorder; |
duke@435 | 114 | |
duke@435 | 115 | _all_chunks = new GrowableArray<DIR_Chunk*>(300); |
duke@435 | 116 | _shared_chunks = new GrowableArray<DIR_Chunk*>(30); |
duke@435 | 117 | _next_chunk = _next_chunk_limit = NULL; |
duke@435 | 118 | |
duke@435 | 119 | add_new_pc_offset(PcDesc::lower_offset_limit); // sentinel record |
duke@435 | 120 | |
duke@435 | 121 | debug_only(_recording_state = rs_null); |
duke@435 | 122 | } |
duke@435 | 123 | |
duke@435 | 124 | |
duke@435 | 125 | void DebugInformationRecorder::add_oopmap(int pc_offset, OopMap* map) { |
duke@435 | 126 | // !!!!! Preserve old style handling of oopmaps for now |
duke@435 | 127 | _oopmaps->add_gc_map(pc_offset, map); |
duke@435 | 128 | } |
duke@435 | 129 | |
duke@435 | 130 | void DebugInformationRecorder::add_safepoint(int pc_offset, OopMap* map) { |
duke@435 | 131 | assert(!_oop_recorder->is_complete(), "not frozen yet"); |
duke@435 | 132 | // Store the new safepoint |
duke@435 | 133 | |
duke@435 | 134 | // Add the oop map |
duke@435 | 135 | add_oopmap(pc_offset, map); |
duke@435 | 136 | |
duke@435 | 137 | add_new_pc_offset(pc_offset); |
duke@435 | 138 | |
duke@435 | 139 | assert(_recording_state == rs_null, "nesting of recording calls"); |
duke@435 | 140 | debug_only(_recording_state = rs_safepoint); |
duke@435 | 141 | } |
duke@435 | 142 | |
duke@435 | 143 | void DebugInformationRecorder::add_non_safepoint(int pc_offset) { |
duke@435 | 144 | assert(!_oop_recorder->is_complete(), "not frozen yet"); |
duke@435 | 145 | assert(_recording_non_safepoints, "must be recording non-safepoints"); |
duke@435 | 146 | |
duke@435 | 147 | add_new_pc_offset(pc_offset); |
duke@435 | 148 | |
duke@435 | 149 | assert(_recording_state == rs_null, "nesting of recording calls"); |
duke@435 | 150 | debug_only(_recording_state = rs_non_safepoint); |
duke@435 | 151 | } |
duke@435 | 152 | |
duke@435 | 153 | void DebugInformationRecorder::add_new_pc_offset(int pc_offset) { |
duke@435 | 154 | assert(_pcs_length == 0 || last_pc()->pc_offset() < pc_offset, |
duke@435 | 155 | "must specify a new, larger pc offset"); |
duke@435 | 156 | |
duke@435 | 157 | // add the pcdesc |
duke@435 | 158 | if (_pcs_length == _pcs_size) { |
duke@435 | 159 | // Expand |
duke@435 | 160 | int new_pcs_size = _pcs_size * 2; |
duke@435 | 161 | PcDesc* new_pcs = NEW_RESOURCE_ARRAY(PcDesc, new_pcs_size); |
duke@435 | 162 | for (int index = 0; index < _pcs_length; index++) { |
duke@435 | 163 | new_pcs[index] = _pcs[index]; |
duke@435 | 164 | } |
duke@435 | 165 | _pcs_size = new_pcs_size; |
duke@435 | 166 | _pcs = new_pcs; |
duke@435 | 167 | } |
duke@435 | 168 | assert(_pcs_size > _pcs_length, "There must be room for after expanding"); |
duke@435 | 169 | |
duke@435 | 170 | _pcs[_pcs_length++] = PcDesc(pc_offset, DebugInformationRecorder::serialized_null, |
duke@435 | 171 | DebugInformationRecorder::serialized_null); |
duke@435 | 172 | } |
duke@435 | 173 | |
duke@435 | 174 | |
duke@435 | 175 | int DebugInformationRecorder::serialize_monitor_values(GrowableArray<MonitorValue*>* monitors) { |
duke@435 | 176 | if (monitors == NULL || monitors->is_empty()) return DebugInformationRecorder::serialized_null; |
duke@435 | 177 | assert(_recording_state == rs_safepoint, "must be recording a safepoint"); |
duke@435 | 178 | int result = stream()->position(); |
duke@435 | 179 | stream()->write_int(monitors->length()); |
duke@435 | 180 | for (int index = 0; index < monitors->length(); index++) { |
duke@435 | 181 | monitors->at(index)->write_on(stream()); |
duke@435 | 182 | } |
duke@435 | 183 | assert(result != serialized_null, "sanity"); |
duke@435 | 184 | |
duke@435 | 185 | // (See comment below on DebugInformationRecorder::describe_scope.) |
duke@435 | 186 | int shared_result = find_sharable_decode_offset(result); |
duke@435 | 187 | if (shared_result != serialized_null) { |
duke@435 | 188 | stream()->set_position(result); |
duke@435 | 189 | result = shared_result; |
duke@435 | 190 | } |
duke@435 | 191 | |
duke@435 | 192 | return result; |
duke@435 | 193 | } |
duke@435 | 194 | |
duke@435 | 195 | |
duke@435 | 196 | int DebugInformationRecorder::serialize_scope_values(GrowableArray<ScopeValue*>* values) { |
duke@435 | 197 | if (values == NULL || values->is_empty()) return DebugInformationRecorder::serialized_null; |
duke@435 | 198 | assert(_recording_state == rs_safepoint, "must be recording a safepoint"); |
duke@435 | 199 | int result = stream()->position(); |
duke@435 | 200 | assert(result != serialized_null, "sanity"); |
duke@435 | 201 | stream()->write_int(values->length()); |
duke@435 | 202 | for (int index = 0; index < values->length(); index++) { |
duke@435 | 203 | values->at(index)->write_on(stream()); |
duke@435 | 204 | } |
duke@435 | 205 | |
duke@435 | 206 | // (See comment below on DebugInformationRecorder::describe_scope.) |
duke@435 | 207 | int shared_result = find_sharable_decode_offset(result); |
duke@435 | 208 | if (shared_result != serialized_null) { |
duke@435 | 209 | stream()->set_position(result); |
duke@435 | 210 | result = shared_result; |
duke@435 | 211 | } |
duke@435 | 212 | |
duke@435 | 213 | return result; |
duke@435 | 214 | } |
duke@435 | 215 | |
duke@435 | 216 | |
duke@435 | 217 | #ifndef PRODUCT |
duke@435 | 218 | // These variables are put into one block to reduce relocations |
duke@435 | 219 | // and make it simpler to print from the debugger. |
duke@435 | 220 | static |
duke@435 | 221 | struct dir_stats_struct { |
duke@435 | 222 | int chunks_queried; |
duke@435 | 223 | int chunks_shared; |
duke@435 | 224 | int chunks_reshared; |
duke@435 | 225 | int chunks_elided; |
duke@435 | 226 | |
duke@435 | 227 | void print() { |
duke@435 | 228 | tty->print_cr("Debug Data Chunks: %d, shared %d+%d, non-SP's elided %d", |
duke@435 | 229 | chunks_queried, |
duke@435 | 230 | chunks_shared, chunks_reshared, |
duke@435 | 231 | chunks_elided); |
duke@435 | 232 | } |
duke@435 | 233 | } dir_stats; |
duke@435 | 234 | #endif //PRODUCT |
duke@435 | 235 | |
duke@435 | 236 | |
duke@435 | 237 | int DebugInformationRecorder::find_sharable_decode_offset(int stream_offset) { |
duke@435 | 238 | // Only pull this trick if non-safepoint recording |
duke@435 | 239 | // is enabled, for now. |
duke@435 | 240 | if (!recording_non_safepoints()) |
duke@435 | 241 | return serialized_null; |
duke@435 | 242 | |
duke@435 | 243 | NOT_PRODUCT(++dir_stats.chunks_queried); |
duke@435 | 244 | int stream_length = stream()->position() - stream_offset; |
duke@435 | 245 | assert(stream_offset != serialized_null, "should not be null"); |
duke@435 | 246 | assert(stream_length != 0, "should not be empty"); |
duke@435 | 247 | |
duke@435 | 248 | DIR_Chunk* ns = new(this) DIR_Chunk(stream_offset, stream_length, this); |
duke@435 | 249 | |
duke@435 | 250 | // Look in previously shared scopes first: |
duke@435 | 251 | DIR_Chunk* ms = ns->find_match(_shared_chunks, 0, this); |
duke@435 | 252 | if (ms != NULL) { |
duke@435 | 253 | NOT_PRODUCT(++dir_stats.chunks_reshared); |
duke@435 | 254 | assert(ns+1 == _next_chunk, ""); |
duke@435 | 255 | _next_chunk = ns; |
duke@435 | 256 | return ms->_offset; |
duke@435 | 257 | } |
duke@435 | 258 | |
duke@435 | 259 | // Look in recently encountered scopes next: |
duke@435 | 260 | const int MAX_RECENT = 50; |
duke@435 | 261 | int start_index = _all_chunks->length() - MAX_RECENT; |
duke@435 | 262 | if (start_index < 0) start_index = 0; |
duke@435 | 263 | ms = ns->find_match(_all_chunks, start_index, this); |
duke@435 | 264 | if (ms != NULL) { |
duke@435 | 265 | NOT_PRODUCT(++dir_stats.chunks_shared); |
duke@435 | 266 | // Searching in _all_chunks is limited to a window, |
duke@435 | 267 | // but searching in _shared_chunks is unlimited. |
duke@435 | 268 | _shared_chunks->append(ms); |
duke@435 | 269 | assert(ns+1 == _next_chunk, ""); |
duke@435 | 270 | _next_chunk = ns; |
duke@435 | 271 | return ms->_offset; |
duke@435 | 272 | } |
duke@435 | 273 | |
duke@435 | 274 | // No match. Add this guy to the list, in hopes of future shares. |
duke@435 | 275 | _all_chunks->append(ns); |
duke@435 | 276 | return serialized_null; |
duke@435 | 277 | } |
duke@435 | 278 | |
duke@435 | 279 | |
duke@435 | 280 | // must call add_safepoint before: it sets PcDesc and this routine uses |
duke@435 | 281 | // the last PcDesc set |
duke@435 | 282 | void DebugInformationRecorder::describe_scope(int pc_offset, |
duke@435 | 283 | ciMethod* method, |
duke@435 | 284 | int bci, |
cfang@1335 | 285 | bool reexecute, |
twisti@1570 | 286 | bool is_method_handle_invoke, |
kvn@1688 | 287 | bool return_oop, |
duke@435 | 288 | DebugToken* locals, |
duke@435 | 289 | DebugToken* expressions, |
duke@435 | 290 | DebugToken* monitors) { |
duke@435 | 291 | assert(_recording_state != rs_null, "nesting of recording calls"); |
duke@435 | 292 | PcDesc* last_pd = last_pc(); |
duke@435 | 293 | assert(last_pd->pc_offset() == pc_offset, "must be last pc"); |
duke@435 | 294 | int sender_stream_offset = last_pd->scope_decode_offset(); |
duke@435 | 295 | // update the stream offset of current pc desc |
duke@435 | 296 | int stream_offset = stream()->position(); |
duke@435 | 297 | last_pd->set_scope_decode_offset(stream_offset); |
duke@435 | 298 | |
twisti@1570 | 299 | // Record flags into pcDesc. |
cfang@1366 | 300 | last_pd->set_should_reexecute(reexecute); |
twisti@1570 | 301 | last_pd->set_is_method_handle_invoke(is_method_handle_invoke); |
kvn@1688 | 302 | last_pd->set_return_oop(return_oop); |
cfang@1366 | 303 | |
duke@435 | 304 | // serialize sender stream offest |
duke@435 | 305 | stream()->write_int(sender_stream_offset); |
duke@435 | 306 | |
duke@435 | 307 | // serialize scope |
jrose@1424 | 308 | jobject method_enc = (method == NULL)? NULL: method->constant_encoding(); |
duke@435 | 309 | stream()->write_int(oop_recorder()->find_index(method_enc)); |
cfang@1366 | 310 | stream()->write_bci(bci); |
duke@435 | 311 | assert(method == NULL || |
duke@435 | 312 | (method->is_native() && bci == 0) || |
duke@435 | 313 | (!method->is_native() && 0 <= bci && bci < method->code_size()) || |
duke@435 | 314 | bci == -1, "illegal bci"); |
duke@435 | 315 | |
duke@435 | 316 | // serialize the locals/expressions/monitors |
duke@435 | 317 | stream()->write_int((intptr_t) locals); |
duke@435 | 318 | stream()->write_int((intptr_t) expressions); |
duke@435 | 319 | stream()->write_int((intptr_t) monitors); |
duke@435 | 320 | |
duke@435 | 321 | // Here's a tricky bit. We just wrote some bytes. |
duke@435 | 322 | // Wouldn't it be nice to find that we had already |
duke@435 | 323 | // written those same bytes somewhere else? |
duke@435 | 324 | // If we get lucky this way, reset the stream |
duke@435 | 325 | // and reuse the old bytes. By the way, this |
duke@435 | 326 | // trick not only shares parent scopes, but also |
duke@435 | 327 | // compresses equivalent non-safepoint PcDescs. |
duke@435 | 328 | int shared_stream_offset = find_sharable_decode_offset(stream_offset); |
duke@435 | 329 | if (shared_stream_offset != serialized_null) { |
duke@435 | 330 | stream()->set_position(stream_offset); |
duke@435 | 331 | last_pd->set_scope_decode_offset(shared_stream_offset); |
duke@435 | 332 | } |
duke@435 | 333 | } |
duke@435 | 334 | |
duke@435 | 335 | void DebugInformationRecorder::dump_object_pool(GrowableArray<ScopeValue*>* objects) { |
duke@435 | 336 | guarantee( _pcs_length > 0, "safepoint must exist before describing scopes"); |
duke@435 | 337 | PcDesc* last_pd = &_pcs[_pcs_length-1]; |
duke@435 | 338 | if (objects != NULL) { |
duke@435 | 339 | for (int i = objects->length() - 1; i >= 0; i--) { |
duke@435 | 340 | ((ObjectValue*) objects->at(i))->set_visited(false); |
duke@435 | 341 | } |
duke@435 | 342 | } |
duke@435 | 343 | int offset = serialize_scope_values(objects); |
duke@435 | 344 | last_pd->set_obj_decode_offset(offset); |
duke@435 | 345 | } |
duke@435 | 346 | |
duke@435 | 347 | void DebugInformationRecorder::end_scopes(int pc_offset, bool is_safepoint) { |
duke@435 | 348 | assert(_recording_state == (is_safepoint? rs_safepoint: rs_non_safepoint), |
duke@435 | 349 | "nesting of recording calls"); |
duke@435 | 350 | debug_only(_recording_state = rs_null); |
duke@435 | 351 | |
duke@435 | 352 | // Try to compress away an equivalent non-safepoint predecessor. |
duke@435 | 353 | // (This only works because we have previously recognized redundant |
duke@435 | 354 | // scope trees and made them use a common scope_decode_offset.) |
duke@435 | 355 | if (_pcs_length >= 2 && recording_non_safepoints()) { |
duke@435 | 356 | PcDesc* last = last_pc(); |
duke@435 | 357 | PcDesc* prev = prev_pc(); |
duke@435 | 358 | // If prev is (a) not a safepoint and (b) has the same |
duke@435 | 359 | // stream pointer, then it can be coalesced into the last. |
duke@435 | 360 | // This is valid because non-safepoints are only sought |
duke@435 | 361 | // with pc_desc_near, which (when it misses prev) will |
duke@435 | 362 | // search forward until it finds last. |
duke@435 | 363 | // In addition, it does not matter if the last PcDesc |
duke@435 | 364 | // is for a safepoint or not. |
never@1449 | 365 | if (_prev_safepoint_pc < prev->pc_offset() && prev->is_same_info(last)) { |
duke@435 | 366 | assert(prev == last-1, "sane"); |
duke@435 | 367 | prev->set_pc_offset(pc_offset); |
duke@435 | 368 | _pcs_length -= 1; |
duke@435 | 369 | NOT_PRODUCT(++dir_stats.chunks_elided); |
duke@435 | 370 | } |
duke@435 | 371 | } |
duke@435 | 372 | |
duke@435 | 373 | // We have just recorded this safepoint. |
duke@435 | 374 | // Remember it in case the previous paragraph needs to know. |
duke@435 | 375 | if (is_safepoint) { |
duke@435 | 376 | _prev_safepoint_pc = pc_offset; |
duke@435 | 377 | } |
duke@435 | 378 | } |
duke@435 | 379 | |
duke@435 | 380 | DebugToken* DebugInformationRecorder::create_scope_values(GrowableArray<ScopeValue*>* values) { |
duke@435 | 381 | assert(!_oop_recorder->is_complete(), "not frozen yet"); |
duke@435 | 382 | return (DebugToken*) (intptr_t) serialize_scope_values(values); |
duke@435 | 383 | } |
duke@435 | 384 | |
duke@435 | 385 | |
duke@435 | 386 | DebugToken* DebugInformationRecorder::create_monitor_values(GrowableArray<MonitorValue*>* monitors) { |
duke@435 | 387 | assert(!_oop_recorder->is_complete(), "not frozen yet"); |
duke@435 | 388 | return (DebugToken*) (intptr_t) serialize_monitor_values(monitors); |
duke@435 | 389 | } |
duke@435 | 390 | |
duke@435 | 391 | |
duke@435 | 392 | int DebugInformationRecorder::data_size() { |
duke@435 | 393 | debug_only(_oop_recorder->oop_size()); // mark it "frozen" for asserts |
duke@435 | 394 | return _stream->position(); |
duke@435 | 395 | } |
duke@435 | 396 | |
duke@435 | 397 | |
duke@435 | 398 | int DebugInformationRecorder::pcs_size() { |
duke@435 | 399 | debug_only(_oop_recorder->oop_size()); // mark it "frozen" for asserts |
duke@435 | 400 | if (last_pc()->pc_offset() != PcDesc::upper_offset_limit) |
duke@435 | 401 | add_new_pc_offset(PcDesc::upper_offset_limit); |
duke@435 | 402 | return _pcs_length * sizeof(PcDesc); |
duke@435 | 403 | } |
duke@435 | 404 | |
duke@435 | 405 | |
duke@435 | 406 | void DebugInformationRecorder::copy_to(nmethod* nm) { |
duke@435 | 407 | nm->copy_scopes_data(stream()->buffer(), stream()->position()); |
duke@435 | 408 | nm->copy_scopes_pcs(_pcs, _pcs_length); |
duke@435 | 409 | } |
duke@435 | 410 | |
duke@435 | 411 | |
duke@435 | 412 | void DebugInformationRecorder::verify(const nmethod* code) { |
duke@435 | 413 | Unimplemented(); |
duke@435 | 414 | } |
duke@435 | 415 | |
duke@435 | 416 | #ifndef PRODUCT |
duke@435 | 417 | void DebugInformationRecorder::print_statistics() { |
duke@435 | 418 | dir_stats.print(); |
duke@435 | 419 | } |
duke@435 | 420 | #endif //PRODUCT |