Mercurial > hg > truffle
annotate src/share/vm/code/relocInfo.cpp @ 21205:f34ae5c01864
include reexecute, rethrow_exception and return_oop info when disassembling debug scopes
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Mon, 04 May 2015 10:39:12 +0200 |
| parents | 7848fc12602b |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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" |
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26 #include "code/codeCache.hpp" |
| 1972 | 27 #include "code/compiledIC.hpp" |
| 28 #include "code/nmethod.hpp" | |
| 29 #include "code/relocInfo.hpp" | |
| 30 #include "memory/resourceArea.hpp" | |
| 31 #include "runtime/stubCodeGenerator.hpp" | |
| 32 #include "utilities/copy.hpp" | |
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33 #include "oops/oop.inline.hpp" |
| 0 | 34 |
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35 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
| 0 | 36 |
| 37 const RelocationHolder RelocationHolder::none; // its type is relocInfo::none | |
| 38 | |
| 39 | |
| 40 // Implementation of relocInfo | |
| 41 | |
| 42 #ifdef ASSERT | |
| 43 relocInfo::relocInfo(relocType t, int off, int f) { | |
| 44 assert(t != data_prefix_tag, "cannot build a prefix this way"); | |
| 45 assert((t & type_mask) == t, "wrong type"); | |
| 46 assert((f & format_mask) == f, "wrong format"); | |
| 47 assert(off >= 0 && off < offset_limit(), "offset out off bounds"); | |
| 48 assert((off & (offset_unit-1)) == 0, "misaligned offset"); | |
| 49 (*this) = relocInfo(t, RAW_BITS, off, f); | |
| 50 } | |
| 51 #endif | |
| 52 | |
| 53 void relocInfo::initialize(CodeSection* dest, Relocation* reloc) { | |
| 54 relocInfo* data = this+1; // here's where the data might go | |
| 55 dest->set_locs_end(data); // sync end: the next call may read dest.locs_end | |
| 56 reloc->pack_data_to(dest); // maybe write data into locs, advancing locs_end | |
| 57 relocInfo* data_limit = dest->locs_end(); | |
| 58 if (data_limit > data) { | |
| 59 relocInfo suffix = (*this); | |
| 60 data_limit = this->finish_prefix((short*) data_limit); | |
| 61 // Finish up with the suffix. (Hack note: pack_data_to might edit this.) | |
| 62 *data_limit = suffix; | |
| 63 dest->set_locs_end(data_limit+1); | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 relocInfo* relocInfo::finish_prefix(short* prefix_limit) { | |
| 68 assert(sizeof(relocInfo) == sizeof(short), "change this code"); | |
| 69 short* p = (short*)(this+1); | |
| 70 assert(prefix_limit >= p, "must be a valid span of data"); | |
| 71 int plen = prefix_limit - p; | |
| 72 if (plen == 0) { | |
| 73 debug_only(_value = 0xFFFF); | |
| 74 return this; // no data: remove self completely | |
| 75 } | |
| 76 if (plen == 1 && fits_into_immediate(p[0])) { | |
| 77 (*this) = immediate_relocInfo(p[0]); // move data inside self | |
| 78 return this+1; | |
| 79 } | |
| 80 // cannot compact, so just update the count and return the limit pointer | |
| 81 (*this) = prefix_relocInfo(plen); // write new datalen | |
| 82 assert(data() + datalen() == prefix_limit, "pointers must line up"); | |
| 83 return (relocInfo*)prefix_limit; | |
| 84 } | |
| 85 | |
| 86 | |
| 87 void relocInfo::set_type(relocType t) { | |
| 88 int old_offset = addr_offset(); | |
| 89 int old_format = format(); | |
| 90 (*this) = relocInfo(t, old_offset, old_format); | |
| 91 assert(type()==(int)t, "sanity check"); | |
| 92 assert(addr_offset()==old_offset, "sanity check"); | |
| 93 assert(format()==old_format, "sanity check"); | |
| 94 } | |
| 95 | |
| 96 | |
| 97 void relocInfo::set_format(int f) { | |
| 98 int old_offset = addr_offset(); | |
| 99 assert((f & format_mask) == f, "wrong format"); | |
| 100 _value = (_value & ~(format_mask << offset_width)) | (f << offset_width); | |
| 101 assert(addr_offset()==old_offset, "sanity check"); | |
| 102 } | |
| 103 | |
| 104 | |
| 105 void relocInfo::change_reloc_info_for_address(RelocIterator *itr, address pc, relocType old_type, relocType new_type) { | |
| 106 bool found = false; | |
| 107 while (itr->next() && !found) { | |
| 108 if (itr->addr() == pc) { | |
| 109 assert(itr->type()==old_type, "wrong relocInfo type found"); | |
| 110 itr->current()->set_type(new_type); | |
| 111 found=true; | |
| 112 } | |
| 113 } | |
| 114 assert(found, "no relocInfo found for pc"); | |
| 115 } | |
| 116 | |
| 117 | |
| 118 void relocInfo::remove_reloc_info_for_address(RelocIterator *itr, address pc, relocType old_type) { | |
| 119 change_reloc_info_for_address(itr, pc, old_type, none); | |
| 120 } | |
| 121 | |
| 122 | |
| 123 // ---------------------------------------------------------------------------------------------------- | |
| 124 // Implementation of RelocIterator | |
| 125 | |
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126 void RelocIterator::initialize(nmethod* nm, address begin, address limit) { |
| 0 | 127 initialize_misc(); |
| 128 | |
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129 if (nm == NULL && begin != NULL) { |
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130 // allow nmethod to be deduced from beginning address |
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131 CodeBlob* cb = CodeCache::find_blob(begin); |
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132 nm = cb->as_nmethod_or_null(); |
| 0 | 133 } |
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134 assert(nm != NULL, "must be able to deduce nmethod from other arguments"); |
| 0 | 135 |
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136 _code = nm; |
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137 _current = nm->relocation_begin() - 1; |
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138 _end = nm->relocation_end(); |
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139 _addr = nm->content_begin(); |
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140 |
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141 // Initialize code sections. |
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142 _section_start[CodeBuffer::SECT_CONSTS] = nm->consts_begin(); |
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143 _section_start[CodeBuffer::SECT_INSTS ] = nm->insts_begin() ; |
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144 _section_start[CodeBuffer::SECT_STUBS ] = nm->stub_begin() ; |
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145 |
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146 _section_end [CodeBuffer::SECT_CONSTS] = nm->consts_end() ; |
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147 _section_end [CodeBuffer::SECT_INSTS ] = nm->insts_end() ; |
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148 _section_end [CodeBuffer::SECT_STUBS ] = nm->stub_end() ; |
| 0 | 149 |
| 150 assert(!has_current(), "just checking"); | |
| 1748 | 151 assert(begin == NULL || begin >= nm->code_begin(), "in bounds"); |
| 152 assert(limit == NULL || limit <= nm->code_end(), "in bounds"); | |
| 0 | 153 set_limits(begin, limit); |
| 154 } | |
| 155 | |
| 156 | |
| 157 RelocIterator::RelocIterator(CodeSection* cs, address begin, address limit) { | |
| 158 initialize_misc(); | |
| 159 | |
| 160 _current = cs->locs_start()-1; | |
| 161 _end = cs->locs_end(); | |
| 162 _addr = cs->start(); | |
| 163 _code = NULL; // Not cb->blob(); | |
| 164 | |
| 165 CodeBuffer* cb = cs->outer(); | |
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166 assert((int) SECT_LIMIT == CodeBuffer::SECT_LIMIT, "my copy must be equal"); |
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167 for (int n = (int) CodeBuffer::SECT_FIRST; n < (int) CodeBuffer::SECT_LIMIT; n++) { |
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168 CodeSection* cs = cb->code_section(n); |
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169 _section_start[n] = cs->start(); |
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170 _section_end [n] = cs->end(); |
| 0 | 171 } |
| 172 | |
| 173 assert(!has_current(), "just checking"); | |
| 174 | |
| 175 assert(begin == NULL || begin >= cs->start(), "in bounds"); | |
| 176 assert(limit == NULL || limit <= cs->end(), "in bounds"); | |
| 177 set_limits(begin, limit); | |
| 178 } | |
| 179 | |
| 180 | |
| 181 enum { indexCardSize = 128 }; | |
| 182 struct RelocIndexEntry { | |
| 183 jint addr_offset; // offset from header_end of an addr() | |
| 184 jint reloc_offset; // offset from header_end of a relocInfo (prefix) | |
| 185 }; | |
| 186 | |
| 187 | |
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188 bool RelocIterator::addr_in_const() const { |
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189 const int n = CodeBuffer::SECT_CONSTS; |
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190 return section_start(n) <= addr() && addr() < section_end(n); |
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191 } |
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192 |
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193 |
| 0 | 194 static inline int num_cards(int code_size) { |
| 195 return (code_size-1) / indexCardSize; | |
| 196 } | |
| 197 | |
| 198 | |
| 199 int RelocIterator::locs_and_index_size(int code_size, int locs_size) { | |
| 200 if (!UseRelocIndex) return locs_size; // no index | |
| 201 code_size = round_to(code_size, oopSize); | |
| 202 locs_size = round_to(locs_size, oopSize); | |
| 203 int index_size = num_cards(code_size) * sizeof(RelocIndexEntry); | |
| 204 // format of indexed relocs: | |
| 205 // relocation_begin: relocInfo ... | |
| 206 // index: (addr,reloc#) ... | |
| 207 // indexSize :relocation_end | |
| 208 return locs_size + index_size + BytesPerInt; | |
| 209 } | |
| 210 | |
| 211 | |
| 212 void RelocIterator::create_index(relocInfo* dest_begin, int dest_count, relocInfo* dest_end) { | |
| 213 address relocation_begin = (address)dest_begin; | |
| 214 address relocation_end = (address)dest_end; | |
| 215 int total_size = relocation_end - relocation_begin; | |
| 216 int locs_size = dest_count * sizeof(relocInfo); | |
| 217 if (!UseRelocIndex) { | |
| 218 Copy::fill_to_bytes(relocation_begin + locs_size, total_size-locs_size, 0); | |
| 219 return; | |
| 220 } | |
| 221 int index_size = total_size - locs_size - BytesPerInt; // find out how much space is left | |
| 222 int ncards = index_size / sizeof(RelocIndexEntry); | |
| 223 assert(total_size == locs_size + index_size + BytesPerInt, "checkin'"); | |
| 224 assert(index_size >= 0 && index_size % sizeof(RelocIndexEntry) == 0, "checkin'"); | |
| 225 jint* index_size_addr = (jint*)relocation_end - 1; | |
| 226 | |
| 227 assert(sizeof(jint) == BytesPerInt, "change this code"); | |
| 228 | |
| 229 *index_size_addr = index_size; | |
| 230 if (index_size != 0) { | |
| 231 assert(index_size > 0, "checkin'"); | |
| 232 | |
| 233 RelocIndexEntry* index = (RelocIndexEntry *)(relocation_begin + locs_size); | |
| 234 assert(index == (RelocIndexEntry*)index_size_addr - ncards, "checkin'"); | |
| 235 | |
| 236 // walk over the relocations, and fill in index entries as we go | |
| 237 RelocIterator iter; | |
| 238 const address initial_addr = NULL; | |
| 239 relocInfo* const initial_current = dest_begin - 1; // biased by -1 like elsewhere | |
| 240 | |
| 241 iter._code = NULL; | |
| 242 iter._addr = initial_addr; | |
| 243 iter._limit = (address)(intptr_t)(ncards * indexCardSize); | |
| 244 iter._current = initial_current; | |
| 245 iter._end = dest_begin + dest_count; | |
| 246 | |
| 247 int i = 0; | |
| 248 address next_card_addr = (address)indexCardSize; | |
| 249 int addr_offset = 0; | |
| 250 int reloc_offset = 0; | |
| 251 while (true) { | |
| 252 // Checkpoint the iterator before advancing it. | |
| 253 addr_offset = iter._addr - initial_addr; | |
| 254 reloc_offset = iter._current - initial_current; | |
| 255 if (!iter.next()) break; | |
| 256 while (iter.addr() >= next_card_addr) { | |
| 257 index[i].addr_offset = addr_offset; | |
| 258 index[i].reloc_offset = reloc_offset; | |
| 259 i++; | |
| 260 next_card_addr += indexCardSize; | |
| 261 } | |
| 262 } | |
| 263 while (i < ncards) { | |
| 264 index[i].addr_offset = addr_offset; | |
| 265 index[i].reloc_offset = reloc_offset; | |
| 266 i++; | |
| 267 } | |
| 268 } | |
| 269 } | |
| 270 | |
| 271 | |
| 272 void RelocIterator::set_limits(address begin, address limit) { | |
| 273 int index_size = 0; | |
| 274 if (UseRelocIndex && _code != NULL) { | |
| 275 index_size = ((jint*)_end)[-1]; | |
| 276 _end = (relocInfo*)( (address)_end - index_size - BytesPerInt ); | |
| 277 } | |
| 278 | |
| 279 _limit = limit; | |
| 280 | |
| 281 // the limit affects this next stuff: | |
| 282 if (begin != NULL) { | |
| 283 #ifdef ASSERT | |
| 284 // In ASSERT mode we do not actually use the index, but simply | |
| 285 // check that its contents would have led us to the right answer. | |
| 286 address addrCheck = _addr; | |
| 287 relocInfo* infoCheck = _current; | |
| 288 #endif // ASSERT | |
| 289 if (index_size > 0) { | |
| 290 // skip ahead | |
| 291 RelocIndexEntry* index = (RelocIndexEntry*)_end; | |
| 292 RelocIndexEntry* index_limit = (RelocIndexEntry*)((address)index + index_size); | |
| 1748 | 293 assert(_addr == _code->code_begin(), "_addr must be unadjusted"); |
| 0 | 294 int card = (begin - _addr) / indexCardSize; |
| 295 if (card > 0) { | |
| 296 if (index+card-1 < index_limit) index += card-1; | |
| 297 else index = index_limit - 1; | |
| 298 #ifdef ASSERT | |
| 299 addrCheck = _addr + index->addr_offset; | |
| 300 infoCheck = _current + index->reloc_offset; | |
| 301 #else | |
| 302 // Advance the iterator immediately to the last valid state | |
| 303 // for the previous card. Calling "next" will then advance | |
| 304 // it to the first item on the required card. | |
| 305 _addr += index->addr_offset; | |
| 306 _current += index->reloc_offset; | |
| 307 #endif // ASSERT | |
| 308 } | |
| 309 } | |
| 310 | |
| 311 relocInfo* backup; | |
| 312 address backup_addr; | |
| 313 while (true) { | |
| 314 backup = _current; | |
| 315 backup_addr = _addr; | |
| 316 #ifdef ASSERT | |
| 317 if (backup == infoCheck) { | |
| 318 assert(backup_addr == addrCheck, "must match"); addrCheck = NULL; infoCheck = NULL; | |
| 319 } else { | |
| 320 assert(addrCheck == NULL || backup_addr <= addrCheck, "must not pass addrCheck"); | |
| 321 } | |
| 322 #endif // ASSERT | |
| 323 if (!next() || addr() >= begin) break; | |
| 324 } | |
| 325 assert(addrCheck == NULL || addrCheck == backup_addr, "must have matched addrCheck"); | |
| 326 assert(infoCheck == NULL || infoCheck == backup, "must have matched infoCheck"); | |
| 327 // At this point, either we are at the first matching record, | |
| 328 // or else there is no such record, and !has_current(). | |
| 329 // In either case, revert to the immediatly preceding state. | |
| 330 _current = backup; | |
| 331 _addr = backup_addr; | |
| 332 set_has_current(false); | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 | |
| 337 void RelocIterator::set_limit(address limit) { | |
| 338 address code_end = (address)code() + code()->size(); | |
| 339 assert(limit == NULL || limit <= code_end, "in bounds"); | |
| 340 _limit = limit; | |
| 341 } | |
| 342 | |
| 343 // All the strange bit-encodings are in here. | |
| 344 // The idea is to encode relocation data which are small integers | |
| 345 // very efficiently (a single extra halfword). Larger chunks of | |
| 346 // relocation data need a halfword header to hold their size. | |
| 347 void RelocIterator::advance_over_prefix() { | |
| 348 if (_current->is_datalen()) { | |
| 349 _data = (short*) _current->data(); | |
| 350 _datalen = _current->datalen(); | |
| 351 _current += _datalen + 1; // skip the embedded data & header | |
| 352 } else { | |
| 353 _databuf = _current->immediate(); | |
| 354 _data = &_databuf; | |
| 355 _datalen = 1; | |
| 356 _current++; // skip the header | |
| 357 } | |
| 358 // The client will see the following relocInfo, whatever that is. | |
| 359 // It is the reloc to which the preceding data applies. | |
| 360 } | |
| 361 | |
| 362 | |
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363 void RelocIterator::initialize_misc() { |
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364 set_has_current(false); |
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365 for (int i = (int) CodeBuffer::SECT_FIRST; i < (int) CodeBuffer::SECT_LIMIT; i++) { |
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366 _section_start[i] = NULL; // these will be lazily computed, if needed |
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367 _section_end [i] = NULL; |
| 0 | 368 } |
| 369 } | |
| 370 | |
| 371 | |
| 372 Relocation* RelocIterator::reloc() { | |
| 373 // (take the "switch" out-of-line) | |
| 374 relocInfo::relocType t = type(); | |
| 375 if (false) {} | |
| 376 #define EACH_TYPE(name) \ | |
| 377 else if (t == relocInfo::name##_type) { \ | |
| 378 return name##_reloc(); \ | |
| 379 } | |
| 380 APPLY_TO_RELOCATIONS(EACH_TYPE); | |
| 381 #undef EACH_TYPE | |
| 382 assert(t == relocInfo::none, "must be padding"); | |
| 383 return new(_rh) Relocation(); | |
| 384 } | |
| 385 | |
| 386 | |
| 387 //////// Methods for flyweight Relocation types | |
| 388 | |
| 389 | |
| 390 RelocationHolder RelocationHolder::plus(int offset) const { | |
| 391 if (offset != 0) { | |
| 392 switch (type()) { | |
| 393 case relocInfo::none: | |
| 394 break; | |
| 395 case relocInfo::oop_type: | |
| 396 { | |
| 397 oop_Relocation* r = (oop_Relocation*)reloc(); | |
| 398 return oop_Relocation::spec(r->oop_index(), r->offset() + offset); | |
| 399 } | |
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400 case relocInfo::metadata_type: |
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401 { |
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402 metadata_Relocation* r = (metadata_Relocation*)reloc(); |
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403 return metadata_Relocation::spec(r->metadata_index(), r->offset() + offset); |
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404 } |
| 0 | 405 default: |
| 406 ShouldNotReachHere(); | |
| 407 } | |
| 408 } | |
| 409 return (*this); | |
| 410 } | |
| 411 | |
| 412 | |
| 413 void Relocation::guarantee_size() { | |
| 414 guarantee(false, "Make _relocbuf bigger!"); | |
| 415 } | |
| 416 | |
| 417 // some relocations can compute their own values | |
| 418 address Relocation::value() { | |
| 419 ShouldNotReachHere(); | |
| 420 return NULL; | |
| 421 } | |
| 422 | |
| 423 | |
| 424 void Relocation::set_value(address x) { | |
| 425 ShouldNotReachHere(); | |
| 426 } | |
| 427 | |
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428 void Relocation::const_set_data_value(address x) { |
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429 #ifdef _LP64 |
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430 if (format() == relocInfo::narrow_oop_in_const) { |
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431 *(narrowOop*)addr() = oopDesc::encode_heap_oop((oop) x); |
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432 } else { |
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433 #endif |
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434 *(address*)addr() = x; |
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435 #ifdef _LP64 |
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436 } |
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437 #endif |
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438 } |
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439 |
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440 void Relocation::const_verify_data_value(address x) { |
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441 #ifdef _LP64 |
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442 if (format() == relocInfo::narrow_oop_in_const) { |
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443 assert(*(narrowOop*)addr() == oopDesc::encode_heap_oop((oop) x), "must agree"); |
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444 } else { |
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445 #endif |
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446 assert(*(address*)addr() == x, "must agree"); |
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447 #ifdef _LP64 |
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448 } |
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449 #endif |
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450 } |
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451 |
| 0 | 452 |
| 453 RelocationHolder Relocation::spec_simple(relocInfo::relocType rtype) { | |
| 454 if (rtype == relocInfo::none) return RelocationHolder::none; | |
| 455 relocInfo ri = relocInfo(rtype, 0); | |
| 456 RelocIterator itr; | |
| 457 itr.set_current(ri); | |
| 458 itr.reloc(); | |
| 459 return itr._rh; | |
| 460 } | |
| 461 | |
| 462 int32_t Relocation::runtime_address_to_index(address runtime_address) { | |
|
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463 assert(!is_reloc_index((intptr_t)runtime_address), "must not look like an index"); |
| 0 | 464 |
| 465 if (runtime_address == NULL) return 0; | |
| 466 | |
| 467 StubCodeDesc* p = StubCodeDesc::desc_for(runtime_address); | |
| 468 if (p != NULL && p->begin() == runtime_address) { | |
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469 assert(is_reloc_index(p->index()), "there must not be too many stubs"); |
| 0 | 470 return (int32_t)p->index(); |
| 471 } else { | |
| 472 // Known "miscellaneous" non-stub pointers: | |
| 473 // os::get_polling_page(), SafepointSynchronize::address_of_state() | |
| 474 if (PrintRelocations) { | |
| 475 tty->print_cr("random unregistered address in relocInfo: " INTPTR_FORMAT, runtime_address); | |
| 476 } | |
| 477 #ifndef _LP64 | |
| 478 return (int32_t) (intptr_t)runtime_address; | |
| 479 #else | |
| 480 // didn't fit return non-index | |
| 481 return -1; | |
| 482 #endif /* _LP64 */ | |
| 483 } | |
| 484 } | |
| 485 | |
| 486 | |
| 487 address Relocation::index_to_runtime_address(int32_t index) { | |
| 488 if (index == 0) return NULL; | |
| 489 | |
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490 if (is_reloc_index(index)) { |
| 0 | 491 StubCodeDesc* p = StubCodeDesc::desc_for_index(index); |
| 492 assert(p != NULL, "there must be a stub for this index"); | |
| 493 return p->begin(); | |
| 494 } else { | |
| 495 #ifndef _LP64 | |
| 496 // this only works on 32bit machines | |
| 497 return (address) ((intptr_t) index); | |
| 498 #else | |
| 499 fatal("Relocation::index_to_runtime_address, int32_t not pointer sized"); | |
| 500 return NULL; | |
| 501 #endif /* _LP64 */ | |
| 502 } | |
| 503 } | |
| 504 | |
| 505 address Relocation::old_addr_for(address newa, | |
| 506 const CodeBuffer* src, CodeBuffer* dest) { | |
| 507 int sect = dest->section_index_of(newa); | |
| 508 guarantee(sect != CodeBuffer::SECT_NONE, "lost track of this address"); | |
| 509 address ostart = src->code_section(sect)->start(); | |
| 510 address nstart = dest->code_section(sect)->start(); | |
| 511 return ostart + (newa - nstart); | |
| 512 } | |
| 513 | |
| 514 address Relocation::new_addr_for(address olda, | |
| 515 const CodeBuffer* src, CodeBuffer* dest) { | |
| 516 debug_only(const CodeBuffer* src0 = src); | |
| 517 int sect = CodeBuffer::SECT_NONE; | |
| 518 // Look for olda in the source buffer, and all previous incarnations | |
| 519 // if the source buffer has been expanded. | |
| 520 for (; src != NULL; src = src->before_expand()) { | |
| 521 sect = src->section_index_of(olda); | |
| 522 if (sect != CodeBuffer::SECT_NONE) break; | |
| 523 } | |
| 524 guarantee(sect != CodeBuffer::SECT_NONE, "lost track of this address"); | |
| 525 address ostart = src->code_section(sect)->start(); | |
| 526 address nstart = dest->code_section(sect)->start(); | |
| 527 return nstart + (olda - ostart); | |
| 528 } | |
| 529 | |
| 530 void Relocation::normalize_address(address& addr, const CodeSection* dest, bool allow_other_sections) { | |
| 531 address addr0 = addr; | |
| 532 if (addr0 == NULL || dest->allocates2(addr0)) return; | |
| 533 CodeBuffer* cb = dest->outer(); | |
| 534 addr = new_addr_for(addr0, cb, cb); | |
| 535 assert(allow_other_sections || dest->contains2(addr), | |
| 536 "addr must be in required section"); | |
| 537 } | |
| 538 | |
| 539 | |
| 540 void CallRelocation::set_destination(address x) { | |
| 541 pd_set_call_destination(x); | |
| 542 } | |
| 543 | |
| 544 void CallRelocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) { | |
| 545 // Usually a self-relative reference to an external routine. | |
| 546 // On some platforms, the reference is absolute (not self-relative). | |
| 547 // The enhanced use of pd_call_destination sorts this all out. | |
| 548 address orig_addr = old_addr_for(addr(), src, dest); | |
| 549 address callee = pd_call_destination(orig_addr); | |
| 550 // Reassert the callee address, this time in the new copy of the code. | |
| 551 pd_set_call_destination(callee); | |
| 552 } | |
| 553 | |
| 554 | |
| 555 //// pack/unpack methods | |
| 556 | |
| 557 void oop_Relocation::pack_data_to(CodeSection* dest) { | |
| 558 short* p = (short*) dest->locs_end(); | |
| 559 p = pack_2_ints_to(p, _oop_index, _offset); | |
| 560 dest->set_locs_end((relocInfo*) p); | |
| 561 } | |
| 562 | |
| 563 | |
| 564 void oop_Relocation::unpack_data() { | |
| 565 unpack_2_ints(_oop_index, _offset); | |
| 566 } | |
| 567 | |
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568 void metadata_Relocation::pack_data_to(CodeSection* dest) { |
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569 short* p = (short*) dest->locs_end(); |
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570 p = pack_2_ints_to(p, _metadata_index, _offset); |
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571 dest->set_locs_end((relocInfo*) p); |
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572 } |
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573 |
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574 |
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575 void metadata_Relocation::unpack_data() { |
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576 unpack_2_ints(_metadata_index, _offset); |
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577 } |
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578 |
| 0 | 579 |
| 580 void virtual_call_Relocation::pack_data_to(CodeSection* dest) { | |
| 581 short* p = (short*) dest->locs_end(); | |
| 582 address point = dest->locs_point(); | |
| 583 | |
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584 normalize_address(_cached_value, dest); |
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585 jint x0 = scaled_offset_null_special(_cached_value, point); |
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586 p = pack_1_int_to(p, x0); |
| 0 | 587 dest->set_locs_end((relocInfo*) p); |
| 588 } | |
| 589 | |
| 590 | |
| 591 void virtual_call_Relocation::unpack_data() { | |
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592 jint x0 = unpack_1_int(); |
| 0 | 593 address point = addr(); |
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594 _cached_value = x0==0? NULL: address_from_scaled_offset(x0, point); |
| 0 | 595 } |
| 596 | |
| 597 | |
| 598 void static_stub_Relocation::pack_data_to(CodeSection* dest) { | |
| 599 short* p = (short*) dest->locs_end(); | |
| 600 CodeSection* insts = dest->outer()->insts(); | |
| 601 normalize_address(_static_call, insts); | |
| 602 p = pack_1_int_to(p, scaled_offset(_static_call, insts->start())); | |
| 603 dest->set_locs_end((relocInfo*) p); | |
| 604 } | |
| 605 | |
| 606 void static_stub_Relocation::unpack_data() { | |
| 607 address base = binding()->section_start(CodeBuffer::SECT_INSTS); | |
| 608 _static_call = address_from_scaled_offset(unpack_1_int(), base); | |
| 609 } | |
| 610 | |
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611 void trampoline_stub_Relocation::pack_data_to(CodeSection* dest ) { |
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612 short* p = (short*) dest->locs_end(); |
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613 CodeSection* insts = dest->outer()->insts(); |
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614 normalize_address(_owner, insts); |
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615 p = pack_1_int_to(p, scaled_offset(_owner, insts->start())); |
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616 dest->set_locs_end((relocInfo*) p); |
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617 } |
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618 |
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619 void trampoline_stub_Relocation::unpack_data() { |
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620 address base = binding()->section_start(CodeBuffer::SECT_INSTS); |
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621 _owner = address_from_scaled_offset(unpack_1_int(), base); |
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622 } |
| 0 | 623 |
| 624 void external_word_Relocation::pack_data_to(CodeSection* dest) { | |
| 625 short* p = (short*) dest->locs_end(); | |
| 626 int32_t index = runtime_address_to_index(_target); | |
| 627 #ifndef _LP64 | |
| 628 p = pack_1_int_to(p, index); | |
| 629 #else | |
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630 if (is_reloc_index(index)) { |
| 0 | 631 p = pack_2_ints_to(p, index, 0); |
| 632 } else { | |
| 633 jlong t = (jlong) _target; | |
| 634 int32_t lo = low(t); | |
| 635 int32_t hi = high(t); | |
| 636 p = pack_2_ints_to(p, lo, hi); | |
| 637 DEBUG_ONLY(jlong t1 = jlong_from(hi, lo)); | |
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638 assert(!is_reloc_index(t1) && (address) t1 == _target, "not symmetric"); |
| 0 | 639 } |
| 640 #endif /* _LP64 */ | |
| 641 dest->set_locs_end((relocInfo*) p); | |
| 642 } | |
| 643 | |
| 644 | |
| 645 void external_word_Relocation::unpack_data() { | |
| 646 #ifndef _LP64 | |
| 647 _target = index_to_runtime_address(unpack_1_int()); | |
| 648 #else | |
| 649 int32_t lo, hi; | |
| 650 unpack_2_ints(lo, hi); | |
| 651 jlong t = jlong_from(hi, lo);; | |
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652 if (is_reloc_index(t)) { |
| 0 | 653 _target = index_to_runtime_address(t); |
| 654 } else { | |
| 655 _target = (address) t; | |
| 656 } | |
| 657 #endif /* _LP64 */ | |
| 658 } | |
| 659 | |
| 660 | |
| 661 void internal_word_Relocation::pack_data_to(CodeSection* dest) { | |
| 662 short* p = (short*) dest->locs_end(); | |
| 663 normalize_address(_target, dest, true); | |
| 664 | |
| 665 // Check whether my target address is valid within this section. | |
| 666 // If not, strengthen the relocation type to point to another section. | |
| 667 int sindex = _section; | |
| 668 if (sindex == CodeBuffer::SECT_NONE && _target != NULL | |
| 669 && (!dest->allocates(_target) || _target == dest->locs_point())) { | |
| 670 sindex = dest->outer()->section_index_of(_target); | |
| 671 guarantee(sindex != CodeBuffer::SECT_NONE, "must belong somewhere"); | |
| 672 relocInfo* base = dest->locs_end() - 1; | |
| 673 assert(base->type() == this->type(), "sanity"); | |
| 674 // Change the written type, to be section_word_type instead. | |
| 675 base->set_type(relocInfo::section_word_type); | |
| 676 } | |
| 677 | |
| 678 // Note: An internal_word relocation cannot refer to its own instruction, | |
| 679 // because we reserve "0" to mean that the pointer itself is embedded | |
| 680 // in the code stream. We use a section_word relocation for such cases. | |
| 681 | |
| 682 if (sindex == CodeBuffer::SECT_NONE) { | |
| 683 assert(type() == relocInfo::internal_word_type, "must be base class"); | |
| 684 guarantee(_target == NULL || dest->allocates2(_target), "must be within the given code section"); | |
| 685 jint x0 = scaled_offset_null_special(_target, dest->locs_point()); | |
| 686 assert(!(x0 == 0 && _target != NULL), "correct encoding of null target"); | |
| 687 p = pack_1_int_to(p, x0); | |
| 688 } else { | |
| 689 assert(_target != NULL, "sanity"); | |
| 690 CodeSection* sect = dest->outer()->code_section(sindex); | |
| 691 guarantee(sect->allocates2(_target), "must be in correct section"); | |
| 692 address base = sect->start(); | |
| 693 jint offset = scaled_offset(_target, base); | |
| 694 assert((uint)sindex < (uint)CodeBuffer::SECT_LIMIT, "sanity"); | |
| 695 assert(CodeBuffer::SECT_LIMIT <= (1 << section_width), "section_width++"); | |
| 696 p = pack_1_int_to(p, (offset << section_width) | sindex); | |
| 697 } | |
| 698 | |
| 699 dest->set_locs_end((relocInfo*) p); | |
| 700 } | |
| 701 | |
| 702 | |
| 703 void internal_word_Relocation::unpack_data() { | |
| 704 jint x0 = unpack_1_int(); | |
| 705 _target = x0==0? NULL: address_from_scaled_offset(x0, addr()); | |
| 706 _section = CodeBuffer::SECT_NONE; | |
| 707 } | |
| 708 | |
| 709 | |
| 710 void section_word_Relocation::unpack_data() { | |
| 711 jint x = unpack_1_int(); | |
| 712 jint offset = (x >> section_width); | |
| 713 int sindex = (x & ((1<<section_width)-1)); | |
| 714 address base = binding()->section_start(sindex); | |
| 715 | |
| 716 _section = sindex; | |
| 717 _target = address_from_scaled_offset(offset, base); | |
| 718 } | |
| 719 | |
| 720 //// miscellaneous methods | |
| 721 oop* oop_Relocation::oop_addr() { | |
| 722 int n = _oop_index; | |
| 723 if (n == 0) { | |
| 724 // oop is stored in the code stream | |
| 725 return (oop*) pd_address_in_code(); | |
| 726 } else { | |
|
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727 // oop is stored in table at nmethod::oops_begin |
| 0 | 728 return code()->oop_addr_at(n); |
| 729 } | |
| 730 } | |
| 731 | |
| 732 | |
| 733 oop oop_Relocation::oop_value() { | |
| 734 oop v = *oop_addr(); | |
| 735 // clean inline caches store a special pseudo-null | |
| 736 if (v == (oop)Universe::non_oop_word()) v = NULL; | |
| 737 return v; | |
| 738 } | |
| 739 | |
| 740 | |
| 741 void oop_Relocation::fix_oop_relocation() { | |
| 742 if (!oop_is_immediate()) { | |
| 743 // get the oop from the pool, and re-insert it into the instruction: | |
| 744 set_value(value()); | |
| 745 } | |
| 746 } | |
| 747 | |
| 748 | |
|
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749 void oop_Relocation::verify_oop_relocation() { |
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750 if (!oop_is_immediate()) { |
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751 // get the oop from the pool, and re-insert it into the instruction: |
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752 verify_value(value()); |
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753 } |
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754 } |
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755 |
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756 // meta data versions |
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757 Metadata** metadata_Relocation::metadata_addr() { |
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758 int n = _metadata_index; |
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759 if (n == 0) { |
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760 // metadata is stored in the code stream |
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761 return (Metadata**) pd_address_in_code(); |
| 0 | 762 } else { |
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763 // metadata is stored in table at nmethod::metadatas_begin |
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764 return code()->metadata_addr_at(n); |
| 0 | 765 } |
| 766 } | |
| 767 | |
| 768 | |
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769 Metadata* metadata_Relocation::metadata_value() { |
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770 Metadata* v = *metadata_addr(); |
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771 // clean inline caches store a special pseudo-null |
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772 if (v == (Metadata*)Universe::non_oop_word()) v = NULL; |
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773 return v; |
| 0 | 774 } |
| 775 | |
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776 |
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777 void metadata_Relocation::fix_metadata_relocation() { |
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778 if (!metadata_is_immediate()) { |
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779 // get the metadata from the pool, and re-insert it into the instruction: |
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780 pd_fix_value(value()); |
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781 } |
| 0 | 782 } |
| 783 | |
| 784 | |
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785 void metadata_Relocation::verify_metadata_relocation() { |
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786 if (!metadata_is_immediate()) { |
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787 // get the metadata from the pool, and re-insert it into the instruction: |
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788 verify_value(value()); |
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789 } |
| 0 | 790 } |
| 791 | |
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792 address virtual_call_Relocation::cached_value() { |
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793 assert(_cached_value != NULL && _cached_value < addr(), "must precede ic_call"); |
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794 return _cached_value; |
| 0 | 795 } |
| 796 | |
| 797 | |
| 798 void virtual_call_Relocation::clear_inline_cache() { | |
| 799 // No stubs for ICs | |
| 800 // Clean IC | |
| 801 ResourceMark rm; | |
| 802 CompiledIC* icache = CompiledIC_at(this); | |
| 803 icache->set_to_clean(); | |
| 804 } | |
| 805 | |
| 806 | |
| 807 void opt_virtual_call_Relocation::clear_inline_cache() { | |
| 808 // No stubs for ICs | |
| 809 // Clean IC | |
| 810 ResourceMark rm; | |
| 811 CompiledIC* icache = CompiledIC_at(this); | |
| 812 icache->set_to_clean(); | |
| 813 } | |
| 814 | |
| 815 | |
| 816 address opt_virtual_call_Relocation::static_stub() { | |
| 817 // search for the static stub who points back to this static call | |
| 818 address static_call_addr = addr(); | |
| 819 RelocIterator iter(code()); | |
| 820 while (iter.next()) { | |
| 821 if (iter.type() == relocInfo::static_stub_type) { | |
| 822 if (iter.static_stub_reloc()->static_call() == static_call_addr) { | |
| 823 return iter.addr(); | |
| 824 } | |
| 825 } | |
| 826 } | |
| 827 return NULL; | |
| 828 } | |
| 829 | |
| 830 | |
| 831 void static_call_Relocation::clear_inline_cache() { | |
| 832 // Safe call site info | |
| 833 CompiledStaticCall* handler = compiledStaticCall_at(this); | |
| 834 handler->set_to_clean(); | |
| 835 } | |
| 836 | |
| 837 | |
| 838 address static_call_Relocation::static_stub() { | |
| 839 // search for the static stub who points back to this static call | |
| 840 address static_call_addr = addr(); | |
| 841 RelocIterator iter(code()); | |
| 842 while (iter.next()) { | |
| 843 if (iter.type() == relocInfo::static_stub_type) { | |
| 844 if (iter.static_stub_reloc()->static_call() == static_call_addr) { | |
| 845 return iter.addr(); | |
| 846 } | |
| 847 } | |
| 848 } | |
| 849 return NULL; | |
| 850 } | |
| 851 | |
|
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852 // Finds the trampoline address for a call. If no trampoline stub is |
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853 // found NULL is returned which can be handled by the caller. |
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854 address trampoline_stub_Relocation::get_trampoline_for(address call, nmethod* code) { |
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855 // There are no relocations available when the code gets relocated |
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856 // because of CodeBuffer expansion. |
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857 if (code->relocation_size() == 0) |
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858 return NULL; |
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859 |
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860 RelocIterator iter(code, call); |
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861 while (iter.next()) { |
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862 if (iter.type() == relocInfo::trampoline_stub_type) { |
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863 if (iter.trampoline_stub_reloc()->owner() == call) { |
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864 return iter.addr(); |
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865 } |
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866 } |
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867 } |
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|
868 |
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869 return NULL; |
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870 } |
| 0 | 871 |
| 872 void static_stub_Relocation::clear_inline_cache() { | |
| 873 // Call stub is only used when calling the interpreted code. | |
| 874 // It does not really need to be cleared, except that we want to clean out the methodoop. | |
| 875 CompiledStaticCall::set_stub_to_clean(this); | |
| 876 } | |
| 877 | |
| 878 | |
| 879 void external_word_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) { | |
| 880 address target = _target; | |
| 881 if (target == NULL) { | |
| 882 // An absolute embedded reference to an external location, | |
| 883 // which means there is nothing to fix here. | |
| 884 return; | |
| 885 } | |
| 886 // Probably this reference is absolute, not relative, so the | |
| 887 // following is probably a no-op. | |
| 888 assert(src->section_index_of(target) == CodeBuffer::SECT_NONE, "sanity"); | |
| 889 set_value(target); | |
| 890 } | |
| 891 | |
| 892 | |
| 893 address external_word_Relocation::target() { | |
| 894 address target = _target; | |
| 895 if (target == NULL) { | |
| 896 target = pd_get_address_from_code(); | |
| 897 } | |
| 898 return target; | |
| 899 } | |
| 900 | |
| 901 | |
| 902 void internal_word_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) { | |
| 903 address target = _target; | |
| 904 if (target == NULL) { | |
|
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905 target = new_addr_for(this->target(), src, dest); |
| 0 | 906 } |
| 907 set_value(target); | |
| 908 } | |
| 909 | |
| 910 | |
| 911 address internal_word_Relocation::target() { | |
| 912 address target = _target; | |
| 913 if (target == NULL) { | |
|
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914 if (addr_in_const()) { |
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915 target = *(address*)addr(); |
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916 } else { |
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917 target = pd_get_address_from_code(); |
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918 } |
| 0 | 919 } |
| 920 return target; | |
| 921 } | |
| 922 | |
| 923 //--------------------------------------------------------------------------------- | |
| 924 // Non-product code | |
| 925 | |
| 926 #ifndef PRODUCT | |
| 927 | |
| 928 static const char* reloc_type_string(relocInfo::relocType t) { | |
| 929 switch (t) { | |
| 930 #define EACH_CASE(name) \ | |
| 931 case relocInfo::name##_type: \ | |
| 932 return #name; | |
| 933 | |
| 934 APPLY_TO_RELOCATIONS(EACH_CASE); | |
| 935 #undef EACH_CASE | |
| 936 | |
| 937 case relocInfo::none: | |
| 938 return "none"; | |
| 939 case relocInfo::data_prefix_tag: | |
| 940 return "prefix"; | |
| 941 default: | |
| 942 return "UNKNOWN RELOC TYPE"; | |
| 943 } | |
| 944 } | |
| 945 | |
| 946 | |
| 947 void RelocIterator::print_current() { | |
| 948 if (!has_current()) { | |
| 949 tty->print_cr("(no relocs)"); | |
| 950 return; | |
| 951 } | |
| 2002 | 952 tty->print("relocInfo@" INTPTR_FORMAT " [type=%d(%s) addr=" INTPTR_FORMAT " offset=%d", |
| 953 _current, type(), reloc_type_string((relocInfo::relocType) type()), _addr, _current->addr_offset()); | |
| 0 | 954 if (current()->format() != 0) |
| 955 tty->print(" format=%d", current()->format()); | |
| 956 if (datalen() == 1) { | |
| 957 tty->print(" data=%d", data()[0]); | |
| 958 } else if (datalen() > 0) { | |
| 959 tty->print(" data={"); | |
| 960 for (int i = 0; i < datalen(); i++) { | |
| 961 tty->print("%04x", data()[i] & 0xFFFF); | |
| 962 } | |
| 963 tty->print("}"); | |
| 964 } | |
| 965 tty->print("]"); | |
| 966 switch (type()) { | |
| 967 case relocInfo::oop_type: | |
| 968 { | |
| 969 oop_Relocation* r = oop_reloc(); | |
| 970 oop* oop_addr = NULL; | |
| 971 oop raw_oop = NULL; | |
| 972 oop oop_value = NULL; | |
| 973 if (code() != NULL || r->oop_is_immediate()) { | |
| 974 oop_addr = r->oop_addr(); | |
| 975 raw_oop = *oop_addr; | |
| 976 oop_value = r->oop_value(); | |
| 977 } | |
| 978 tty->print(" | [oop_addr=" INTPTR_FORMAT " *=" INTPTR_FORMAT " offset=%d]", | |
| 979 oop_addr, (address)raw_oop, r->offset()); | |
| 980 // Do not print the oop by default--we want this routine to | |
| 981 // work even during GC or other inconvenient times. | |
| 982 if (WizardMode && oop_value != NULL) { | |
| 983 tty->print("oop_value=" INTPTR_FORMAT ": ", (address)oop_value); | |
| 984 oop_value->print_value_on(tty); | |
| 985 } | |
| 986 break; | |
| 987 } | |
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988 case relocInfo::metadata_type: |
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989 { |
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990 metadata_Relocation* r = metadata_reloc(); |
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991 Metadata** metadata_addr = NULL; |
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992 Metadata* raw_metadata = NULL; |
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993 Metadata* metadata_value = NULL; |
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994 if (code() != NULL || r->metadata_is_immediate()) { |
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995 metadata_addr = r->metadata_addr(); |
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996 raw_metadata = *metadata_addr; |
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997 metadata_value = r->metadata_value(); |
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998 } |
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999 tty->print(" | [metadata_addr=" INTPTR_FORMAT " *=" INTPTR_FORMAT " offset=%d]", |
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1000 metadata_addr, (address)raw_metadata, r->offset()); |
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1001 if (metadata_value != NULL) { |
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1002 tty->print("metadata_value=" INTPTR_FORMAT ": ", (address)metadata_value); |
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1003 metadata_value->print_value_on(tty); |
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1004 } |
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1005 break; |
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1006 } |
| 0 | 1007 case relocInfo::external_word_type: |
| 1008 case relocInfo::internal_word_type: | |
| 1009 case relocInfo::section_word_type: | |
| 1010 { | |
| 1011 DataRelocation* r = (DataRelocation*) reloc(); | |
| 1012 tty->print(" | [target=" INTPTR_FORMAT "]", r->value()); //value==target | |
| 1013 break; | |
| 1014 } | |
| 1015 case relocInfo::static_call_type: | |
| 1016 case relocInfo::runtime_call_type: | |
| 1017 { | |
| 1018 CallRelocation* r = (CallRelocation*) reloc(); | |
| 1019 tty->print(" | [destination=" INTPTR_FORMAT "]", r->destination()); | |
| 1020 break; | |
| 1021 } | |
| 1022 case relocInfo::virtual_call_type: | |
| 1023 { | |
| 1024 virtual_call_Relocation* r = (virtual_call_Relocation*) reloc(); | |
|
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1025 tty->print(" | [destination=" INTPTR_FORMAT " cached_value=" INTPTR_FORMAT "]", |
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1026 r->destination(), r->cached_value()); |
| 0 | 1027 break; |
| 1028 } | |
| 1029 case relocInfo::static_stub_type: | |
| 1030 { | |
| 1031 static_stub_Relocation* r = (static_stub_Relocation*) reloc(); | |
| 1032 tty->print(" | [static_call=" INTPTR_FORMAT "]", r->static_call()); | |
| 1033 break; | |
| 1034 } | |
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1035 case relocInfo::trampoline_stub_type: |
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1036 { |
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1037 trampoline_stub_Relocation* r = (trampoline_stub_Relocation*) reloc(); |
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1038 tty->print(" | [trampoline owner=" INTPTR_FORMAT "]", r->owner()); |
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1039 break; |
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1040 } |
| 0 | 1041 } |
| 1042 tty->cr(); | |
| 1043 } | |
| 1044 | |
| 1045 | |
| 1046 void RelocIterator::print() { | |
| 1047 RelocIterator save_this = (*this); | |
| 1048 relocInfo* scan = _current; | |
| 1049 if (!has_current()) scan += 1; // nothing to scan here! | |
| 1050 | |
| 1051 bool skip_next = has_current(); | |
| 1052 bool got_next; | |
| 1053 while (true) { | |
| 1054 got_next = (skip_next || next()); | |
| 1055 skip_next = false; | |
| 1056 | |
| 1057 tty->print(" @" INTPTR_FORMAT ": ", scan); | |
| 1058 relocInfo* newscan = _current+1; | |
| 1059 if (!has_current()) newscan -= 1; // nothing to scan here! | |
| 1060 while (scan < newscan) { | |
| 1061 tty->print("%04x", *(short*)scan & 0xFFFF); | |
| 1062 scan++; | |
| 1063 } | |
| 1064 tty->cr(); | |
| 1065 | |
| 1066 if (!got_next) break; | |
| 1067 print_current(); | |
| 1068 } | |
| 1069 | |
| 1070 (*this) = save_this; | |
| 1071 } | |
| 1072 | |
| 1073 // For the debugger: | |
| 1074 extern "C" | |
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1075 void print_blob_locs(nmethod* nm) { |
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1076 nm->print(); |
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1077 RelocIterator iter(nm); |
| 0 | 1078 iter.print(); |
| 1079 } | |
| 1080 extern "C" | |
| 1081 void print_buf_locs(CodeBuffer* cb) { | |
| 1082 FlagSetting fs(PrintRelocations, true); | |
| 1083 cb->print(); | |
| 1084 } | |
| 1085 #endif // !PRODUCT |