Mercurial > hg > truffle
annotate src/share/vm/code/codeBlob.cpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 9eba43136cb5 |
| children | e9ff18c4ace7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1998, 2010, 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 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_codeBlob.cpp.incl" | |
| 27 | |
| 28 unsigned int align_code_offset(int offset) { | |
| 29 // align the size to CodeEntryAlignment | |
| 30 return | |
| 31 ((offset + (int)CodeHeap::header_size() + (CodeEntryAlignment-1)) & ~(CodeEntryAlignment-1)) | |
| 32 - (int)CodeHeap::header_size(); | |
| 33 } | |
| 34 | |
| 35 | |
| 36 // This must be consistent with the CodeBlob constructor's layout actions. | |
| 37 unsigned int CodeBlob::allocation_size(CodeBuffer* cb, int header_size) { | |
| 38 unsigned int size = header_size; | |
| 39 size += round_to(cb->total_relocation_size(), oopSize); | |
| 40 // align the size to CodeEntryAlignment | |
| 41 size = align_code_offset(size); | |
| 42 size += round_to(cb->total_code_size(), oopSize); | |
| 43 size += round_to(cb->total_oop_size(), oopSize); | |
| 44 return size; | |
| 45 } | |
| 46 | |
| 47 | |
| 48 // Creates a simple CodeBlob. Sets up the size of the different regions. | |
| 49 CodeBlob::CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size) { | |
| 50 assert(size == round_to(size, oopSize), "unaligned size"); | |
| 51 assert(locs_size == round_to(locs_size, oopSize), "unaligned size"); | |
| 52 assert(header_size == round_to(header_size, oopSize), "unaligned size"); | |
| 53 assert(!UseRelocIndex, "no space allocated for reloc index yet"); | |
| 54 | |
| 55 // Note: If UseRelocIndex is enabled, there needs to be (at least) one | |
| 56 // extra word for the relocation information, containing the reloc | |
| 57 // index table length. Unfortunately, the reloc index table imple- | |
| 58 // mentation is not easily understandable and thus it is not clear | |
| 59 // what exactly the format is supposed to be. For now, we just turn | |
| 60 // off the use of this table (gri 7/6/2000). | |
| 61 | |
| 62 _name = name; | |
| 63 _size = size; | |
| 64 _frame_complete_offset = frame_complete; | |
| 65 _header_size = header_size; | |
| 66 _relocation_size = locs_size; | |
| 67 _instructions_offset = align_code_offset(header_size + locs_size); | |
| 68 _data_offset = size; | |
| 69 _oops_offset = size; | |
| 70 _oops_length = 0; | |
| 71 _frame_size = 0; | |
| 72 set_oop_maps(NULL); | |
| 73 } | |
| 74 | |
| 75 | |
| 76 // Creates a CodeBlob from a CodeBuffer. Sets up the size of the different regions, | |
| 77 // and copy code and relocation info. | |
| 78 CodeBlob::CodeBlob( | |
| 79 const char* name, | |
| 80 CodeBuffer* cb, | |
| 81 int header_size, | |
| 82 int size, | |
| 83 int frame_complete, | |
| 84 int frame_size, | |
| 85 OopMapSet* oop_maps | |
| 86 ) { | |
| 87 assert(size == round_to(size, oopSize), "unaligned size"); | |
| 88 assert(header_size == round_to(header_size, oopSize), "unaligned size"); | |
| 89 | |
| 90 _name = name; | |
| 91 _size = size; | |
| 92 _frame_complete_offset = frame_complete; | |
| 93 _header_size = header_size; | |
| 94 _relocation_size = round_to(cb->total_relocation_size(), oopSize); | |
| 95 _instructions_offset = align_code_offset(header_size + _relocation_size); | |
| 96 _data_offset = _instructions_offset + round_to(cb->total_code_size(), oopSize); | |
| 97 _oops_offset = _size - round_to(cb->total_oop_size(), oopSize); | |
| 98 _oops_length = 0; // temporary, until the copy_oops handshake | |
| 99 assert(_oops_offset >= _data_offset, "codeBlob is too small"); | |
| 100 assert(_data_offset <= size, "codeBlob is too small"); | |
| 101 | |
| 102 cb->copy_code_and_locs_to(this); | |
| 103 set_oop_maps(oop_maps); | |
| 104 _frame_size = frame_size; | |
| 105 #ifdef COMPILER1 | |
| 106 // probably wrong for tiered | |
| 107 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs"); | |
| 108 #endif // COMPILER1 | |
| 109 } | |
| 110 | |
| 111 | |
| 112 void CodeBlob::set_oop_maps(OopMapSet* p) { | |
| 113 // Danger Will Robinson! This method allocates a big | |
| 114 // chunk of memory, its your job to free it. | |
| 115 if (p != NULL) { | |
| 116 // We need to allocate a chunk big enough to hold the OopMapSet and all of its OopMaps | |
| 117 _oop_maps = (OopMapSet* )NEW_C_HEAP_ARRAY(unsigned char, p->heap_size()); | |
| 118 p->copy_to((address)_oop_maps); | |
| 119 } else { | |
| 120 _oop_maps = NULL; | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 | |
| 125 void CodeBlob::flush() { | |
| 126 if (_oop_maps) { | |
| 127 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps); | |
| 128 _oop_maps = NULL; | |
| 129 } | |
| 130 _comments.free(); | |
| 131 } | |
| 132 | |
| 133 | |
| 134 // Promote one word from an assembly-time handle to a live embedded oop. | |
| 135 inline void CodeBlob::initialize_immediate_oop(oop* dest, jobject handle) { | |
| 136 if (handle == NULL || | |
| 137 // As a special case, IC oops are initialized to 1 or -1. | |
| 138 handle == (jobject) Universe::non_oop_word()) { | |
| 139 (*dest) = (oop)handle; | |
| 140 } else { | |
| 141 (*dest) = JNIHandles::resolve_non_null(handle); | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 | |
| 146 void CodeBlob::copy_oops(GrowableArray<jobject>* array) { | |
| 147 assert(_oops_length == 0, "do this handshake just once, please"); | |
| 148 int length = array->length(); | |
| 149 assert((address)(oops_begin() + length) <= data_end(), "oops big enough"); | |
| 150 oop* dest = oops_begin(); | |
| 151 for (int index = 0 ; index < length; index++) { | |
| 152 initialize_immediate_oop(&dest[index], array->at(index)); | |
| 153 } | |
| 154 _oops_length = length; | |
| 155 | |
| 156 // Now we can fix up all the oops in the code. | |
| 157 // We need to do this in the code because | |
| 158 // the assembler uses jobjects as placeholders. | |
| 159 // The code and relocations have already been | |
| 160 // initialized by the CodeBlob constructor, | |
| 161 // so it is valid even at this early point to | |
| 162 // iterate over relocations and patch the code. | |
| 163 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); | |
| 164 } | |
| 165 | |
| 166 | |
| 167 relocInfo::relocType CodeBlob::reloc_type_for_address(address pc) { | |
| 168 RelocIterator iter(this, pc, pc+1); | |
| 169 while (iter.next()) { | |
| 170 return (relocInfo::relocType) iter.type(); | |
| 171 } | |
| 172 // No relocation info found for pc | |
| 173 ShouldNotReachHere(); | |
| 174 return relocInfo::none; // dummy return value | |
| 175 } | |
| 176 | |
| 177 | |
| 178 bool CodeBlob::is_at_poll_return(address pc) { | |
| 179 RelocIterator iter(this, pc, pc+1); | |
| 180 while (iter.next()) { | |
| 181 if (iter.type() == relocInfo::poll_return_type) | |
| 182 return true; | |
| 183 } | |
| 184 return false; | |
| 185 } | |
| 186 | |
| 187 | |
| 188 bool CodeBlob::is_at_poll_or_poll_return(address pc) { | |
| 189 RelocIterator iter(this, pc, pc+1); | |
| 190 while (iter.next()) { | |
| 191 relocInfo::relocType t = iter.type(); | |
| 192 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) | |
| 193 return true; | |
| 194 } | |
| 195 return false; | |
| 196 } | |
| 197 | |
| 198 | |
| 199 void CodeBlob::fix_oop_relocations(address begin, address end, | |
| 200 bool initialize_immediates) { | |
| 201 // re-patch all oop-bearing instructions, just in case some oops moved | |
| 202 RelocIterator iter(this, begin, end); | |
| 203 while (iter.next()) { | |
| 204 if (iter.type() == relocInfo::oop_type) { | |
| 205 oop_Relocation* reloc = iter.oop_reloc(); | |
| 206 if (initialize_immediates && reloc->oop_is_immediate()) { | |
| 207 oop* dest = reloc->oop_addr(); | |
| 208 initialize_immediate_oop(dest, (jobject) *dest); | |
| 209 } | |
| 210 // Refresh the oop-related bits of this instruction. | |
| 211 reloc->fix_oop_relocation(); | |
| 212 } | |
| 213 | |
| 214 // There must not be any interfering patches or breakpoints. | |
| 215 assert(!(iter.type() == relocInfo::breakpoint_type | |
| 216 && iter.breakpoint_reloc()->active()), | |
| 217 "no active breakpoint"); | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 void CodeBlob::do_unloading(BoolObjectClosure* is_alive, | |
| 222 OopClosure* keep_alive, | |
| 223 bool unloading_occurred) { | |
| 224 ShouldNotReachHere(); | |
| 225 } | |
| 226 | |
| 227 OopMap* CodeBlob::oop_map_for_return_address(address return_address) { | |
| 228 address pc = return_address ; | |
| 229 assert (oop_maps() != NULL, "nope"); | |
| 230 return oop_maps()->find_map_at_offset ((intptr_t) pc - (intptr_t) instructions_begin()); | |
| 231 } | |
| 232 | |
| 233 | |
| 234 //---------------------------------------------------------------------------------------------------- | |
| 235 // Implementation of BufferBlob | |
| 236 | |
| 237 | |
| 238 BufferBlob::BufferBlob(const char* name, int size) | |
| 239 : CodeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0) | |
| 240 {} | |
| 241 | |
| 242 BufferBlob* BufferBlob::create(const char* name, int buffer_size) { | |
| 243 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 244 | |
| 245 BufferBlob* blob = NULL; | |
| 246 unsigned int size = sizeof(BufferBlob); | |
| 247 // align the size to CodeEntryAlignment | |
| 248 size = align_code_offset(size); | |
| 249 size += round_to(buffer_size, oopSize); | |
| 250 assert(name != NULL, "must provide a name"); | |
| 251 { | |
| 252 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 253 blob = new (size) BufferBlob(name, size); | |
| 254 } | |
| 255 // Track memory usage statistic after releasing CodeCache_lock | |
| 256 MemoryService::track_code_cache_memory_usage(); | |
| 257 | |
| 258 return blob; | |
| 259 } | |
| 260 | |
| 261 | |
| 262 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb) | |
| 263 : CodeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL) | |
| 264 {} | |
| 265 | |
| 266 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) { | |
| 267 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 268 | |
| 269 BufferBlob* blob = NULL; | |
| 270 unsigned int size = allocation_size(cb, sizeof(BufferBlob)); | |
| 271 assert(name != NULL, "must provide a name"); | |
| 272 { | |
| 273 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 274 blob = new (size) BufferBlob(name, size, cb); | |
| 275 } | |
| 276 // Track memory usage statistic after releasing CodeCache_lock | |
| 277 MemoryService::track_code_cache_memory_usage(); | |
| 278 | |
| 279 return blob; | |
| 280 } | |
| 281 | |
| 282 | |
| 283 void* BufferBlob::operator new(size_t s, unsigned size) { | |
| 284 void* p = CodeCache::allocate(size); | |
| 285 return p; | |
| 286 } | |
| 287 | |
| 288 | |
| 289 void BufferBlob::free( BufferBlob *blob ) { | |
| 290 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 291 { | |
| 292 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 293 CodeCache::free((CodeBlob*)blob); | |
| 294 } | |
| 295 // Track memory usage statistic after releasing CodeCache_lock | |
| 296 MemoryService::track_code_cache_memory_usage(); | |
| 297 } | |
| 298 | |
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299 |
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300 //---------------------------------------------------------------------------------------------------- |
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301 // Implementation of AdapterBlob |
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302 |
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303 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) { |
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304 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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305 |
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306 AdapterBlob* blob = NULL; |
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307 unsigned int size = allocation_size(cb, sizeof(AdapterBlob)); |
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308 { |
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309 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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310 blob = new (size) AdapterBlob(size, cb); |
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311 } |
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312 // Track memory usage statistic after releasing CodeCache_lock |
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313 MemoryService::track_code_cache_memory_usage(); |
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314 |
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315 return blob; |
| 0 | 316 } |
| 317 | |
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318 |
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319 //---------------------------------------------------------------------------------------------------- |
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320 // Implementation of MethodHandlesAdapterBlob |
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321 |
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322 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) { |
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323 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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324 |
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325 MethodHandlesAdapterBlob* blob = NULL; |
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326 unsigned int size = sizeof(MethodHandlesAdapterBlob); |
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327 // align the size to CodeEntryAlignment |
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328 size = align_code_offset(size); |
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329 size += round_to(buffer_size, oopSize); |
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330 { |
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331 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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332 blob = new (size) MethodHandlesAdapterBlob(size); |
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333 } |
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334 // Track memory usage statistic after releasing CodeCache_lock |
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335 MemoryService::track_code_cache_memory_usage(); |
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336 |
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337 return blob; |
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338 } |
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339 |
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340 |
| 0 | 341 //---------------------------------------------------------------------------------------------------- |
| 342 // Implementation of RuntimeStub | |
| 343 | |
| 344 RuntimeStub::RuntimeStub( | |
| 345 const char* name, | |
| 346 CodeBuffer* cb, | |
| 347 int size, | |
| 348 int frame_complete, | |
| 349 int frame_size, | |
| 350 OopMapSet* oop_maps, | |
| 351 bool caller_must_gc_arguments | |
| 352 ) | |
| 353 : CodeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps) | |
| 354 { | |
| 355 _caller_must_gc_arguments = caller_must_gc_arguments; | |
| 356 } | |
| 357 | |
| 358 | |
| 359 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name, | |
| 360 CodeBuffer* cb, | |
| 361 int frame_complete, | |
| 362 int frame_size, | |
| 363 OopMapSet* oop_maps, | |
| 364 bool caller_must_gc_arguments) | |
| 365 { | |
| 366 RuntimeStub* stub = NULL; | |
| 367 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 368 { | |
| 369 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 370 unsigned int size = allocation_size(cb, sizeof(RuntimeStub)); | |
| 371 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments); | |
| 372 } | |
| 373 | |
| 374 // Do not hold the CodeCache lock during name formatting. | |
| 375 if (stub != NULL) { | |
| 376 char stub_id[256]; | |
| 377 jio_snprintf(stub_id, sizeof(stub_id), "RuntimeStub - %s", stub_name); | |
| 378 if (PrintStubCode) { | |
| 379 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, stub); | |
| 380 Disassembler::decode(stub->instructions_begin(), stub->instructions_end()); | |
| 381 } | |
| 382 VTune::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end()); | |
| 383 Forte::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end()); | |
| 384 | |
| 385 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 386 JvmtiExport::post_dynamic_code_generated(stub_name, stub->instructions_begin(), stub->instructions_end()); | |
| 387 } | |
| 388 } | |
| 389 | |
| 390 // Track memory usage statistic after releasing CodeCache_lock | |
| 391 MemoryService::track_code_cache_memory_usage(); | |
| 392 | |
| 393 return stub; | |
| 394 } | |
| 395 | |
| 396 | |
| 397 void* RuntimeStub::operator new(size_t s, unsigned size) { | |
| 398 void* p = CodeCache::allocate(size); | |
| 399 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 400 return p; | |
| 401 } | |
| 402 | |
| 403 | |
| 404 //---------------------------------------------------------------------------------------------------- | |
| 405 // Implementation of DeoptimizationBlob | |
| 406 | |
| 407 DeoptimizationBlob::DeoptimizationBlob( | |
| 408 CodeBuffer* cb, | |
| 409 int size, | |
| 410 OopMapSet* oop_maps, | |
| 411 int unpack_offset, | |
| 412 int unpack_with_exception_offset, | |
| 413 int unpack_with_reexecution_offset, | |
| 414 int frame_size | |
| 415 ) | |
| 416 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps) | |
| 417 { | |
| 418 _unpack_offset = unpack_offset; | |
| 419 _unpack_with_exception = unpack_with_exception_offset; | |
| 420 _unpack_with_reexecution = unpack_with_reexecution_offset; | |
| 421 #ifdef COMPILER1 | |
| 422 _unpack_with_exception_in_tls = -1; | |
| 423 #endif | |
| 424 } | |
| 425 | |
| 426 | |
| 427 DeoptimizationBlob* DeoptimizationBlob::create( | |
| 428 CodeBuffer* cb, | |
| 429 OopMapSet* oop_maps, | |
| 430 int unpack_offset, | |
| 431 int unpack_with_exception_offset, | |
| 432 int unpack_with_reexecution_offset, | |
| 433 int frame_size) | |
| 434 { | |
| 435 DeoptimizationBlob* blob = NULL; | |
| 436 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 437 { | |
| 438 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 439 unsigned int size = allocation_size(cb, sizeof(DeoptimizationBlob)); | |
| 440 blob = new (size) DeoptimizationBlob(cb, | |
| 441 size, | |
| 442 oop_maps, | |
| 443 unpack_offset, | |
| 444 unpack_with_exception_offset, | |
| 445 unpack_with_reexecution_offset, | |
| 446 frame_size); | |
| 447 } | |
| 448 | |
| 449 // Do not hold the CodeCache lock during name formatting. | |
| 450 if (blob != NULL) { | |
| 451 char blob_id[256]; | |
| 452 jio_snprintf(blob_id, sizeof(blob_id), "DeoptimizationBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 453 if (PrintStubCode) { | |
| 454 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 455 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 456 } | |
| 457 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 458 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 459 | |
| 460 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 461 JvmtiExport::post_dynamic_code_generated("DeoptimizationBlob", | |
| 462 blob->instructions_begin(), | |
| 463 blob->instructions_end()); | |
| 464 } | |
| 465 } | |
| 466 | |
| 467 // Track memory usage statistic after releasing CodeCache_lock | |
| 468 MemoryService::track_code_cache_memory_usage(); | |
| 469 | |
| 470 return blob; | |
| 471 } | |
| 472 | |
| 473 | |
| 474 void* DeoptimizationBlob::operator new(size_t s, unsigned size) { | |
| 475 void* p = CodeCache::allocate(size); | |
| 476 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 477 return p; | |
| 478 } | |
| 479 | |
| 480 //---------------------------------------------------------------------------------------------------- | |
| 481 // Implementation of UncommonTrapBlob | |
| 482 | |
| 483 #ifdef COMPILER2 | |
| 484 UncommonTrapBlob::UncommonTrapBlob( | |
| 485 CodeBuffer* cb, | |
| 486 int size, | |
| 487 OopMapSet* oop_maps, | |
| 488 int frame_size | |
| 489 ) | |
| 490 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps) | |
| 491 {} | |
| 492 | |
| 493 | |
| 494 UncommonTrapBlob* UncommonTrapBlob::create( | |
| 495 CodeBuffer* cb, | |
| 496 OopMapSet* oop_maps, | |
| 497 int frame_size) | |
| 498 { | |
| 499 UncommonTrapBlob* blob = NULL; | |
| 500 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 501 { | |
| 502 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 503 unsigned int size = allocation_size(cb, sizeof(UncommonTrapBlob)); | |
| 504 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size); | |
| 505 } | |
| 506 | |
| 507 // Do not hold the CodeCache lock during name formatting. | |
| 508 if (blob != NULL) { | |
| 509 char blob_id[256]; | |
| 510 jio_snprintf(blob_id, sizeof(blob_id), "UncommonTrapBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 511 if (PrintStubCode) { | |
| 512 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 513 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 514 } | |
| 515 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 516 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 517 | |
| 518 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 519 JvmtiExport::post_dynamic_code_generated("UncommonTrapBlob", | |
| 520 blob->instructions_begin(), | |
| 521 blob->instructions_end()); | |
| 522 } | |
| 523 } | |
| 524 | |
| 525 // Track memory usage statistic after releasing CodeCache_lock | |
| 526 MemoryService::track_code_cache_memory_usage(); | |
| 527 | |
| 528 return blob; | |
| 529 } | |
| 530 | |
| 531 | |
| 532 void* UncommonTrapBlob::operator new(size_t s, unsigned size) { | |
| 533 void* p = CodeCache::allocate(size); | |
| 534 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 535 return p; | |
| 536 } | |
| 537 #endif // COMPILER2 | |
| 538 | |
| 539 | |
| 540 //---------------------------------------------------------------------------------------------------- | |
| 541 // Implementation of ExceptionBlob | |
| 542 | |
| 543 #ifdef COMPILER2 | |
| 544 ExceptionBlob::ExceptionBlob( | |
| 545 CodeBuffer* cb, | |
| 546 int size, | |
| 547 OopMapSet* oop_maps, | |
| 548 int frame_size | |
| 549 ) | |
| 550 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps) | |
| 551 {} | |
| 552 | |
| 553 | |
| 554 ExceptionBlob* ExceptionBlob::create( | |
| 555 CodeBuffer* cb, | |
| 556 OopMapSet* oop_maps, | |
| 557 int frame_size) | |
| 558 { | |
| 559 ExceptionBlob* blob = NULL; | |
| 560 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 561 { | |
| 562 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 563 unsigned int size = allocation_size(cb, sizeof(ExceptionBlob)); | |
| 564 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size); | |
| 565 } | |
| 566 | |
| 567 // We do not need to hold the CodeCache lock during name formatting | |
| 568 if (blob != NULL) { | |
| 569 char blob_id[256]; | |
| 570 jio_snprintf(blob_id, sizeof(blob_id), "ExceptionBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 571 if (PrintStubCode) { | |
| 572 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 573 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 574 } | |
| 575 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 576 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 577 | |
| 578 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 579 JvmtiExport::post_dynamic_code_generated("ExceptionBlob", | |
| 580 blob->instructions_begin(), | |
| 581 blob->instructions_end()); | |
| 582 } | |
| 583 } | |
| 584 | |
| 585 // Track memory usage statistic after releasing CodeCache_lock | |
| 586 MemoryService::track_code_cache_memory_usage(); | |
| 587 | |
| 588 return blob; | |
| 589 } | |
| 590 | |
| 591 | |
| 592 void* ExceptionBlob::operator new(size_t s, unsigned size) { | |
| 593 void* p = CodeCache::allocate(size); | |
| 594 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 595 return p; | |
| 596 } | |
| 597 #endif // COMPILER2 | |
| 598 | |
| 599 | |
| 600 //---------------------------------------------------------------------------------------------------- | |
| 601 // Implementation of SafepointBlob | |
| 602 | |
| 603 SafepointBlob::SafepointBlob( | |
| 604 CodeBuffer* cb, | |
| 605 int size, | |
| 606 OopMapSet* oop_maps, | |
| 607 int frame_size | |
| 608 ) | |
| 609 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps) | |
| 610 {} | |
| 611 | |
| 612 | |
| 613 SafepointBlob* SafepointBlob::create( | |
| 614 CodeBuffer* cb, | |
| 615 OopMapSet* oop_maps, | |
| 616 int frame_size) | |
| 617 { | |
| 618 SafepointBlob* blob = NULL; | |
| 619 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 620 { | |
| 621 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 622 unsigned int size = allocation_size(cb, sizeof(SafepointBlob)); | |
| 623 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size); | |
| 624 } | |
| 625 | |
| 626 // We do not need to hold the CodeCache lock during name formatting. | |
| 627 if (blob != NULL) { | |
| 628 char blob_id[256]; | |
| 629 jio_snprintf(blob_id, sizeof(blob_id), "SafepointBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 630 if (PrintStubCode) { | |
| 631 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 632 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 633 } | |
| 634 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 635 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 636 | |
| 637 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 638 JvmtiExport::post_dynamic_code_generated("SafepointBlob", | |
| 639 blob->instructions_begin(), | |
| 640 blob->instructions_end()); | |
| 641 } | |
| 642 } | |
| 643 | |
| 644 // Track memory usage statistic after releasing CodeCache_lock | |
| 645 MemoryService::track_code_cache_memory_usage(); | |
| 646 | |
| 647 return blob; | |
| 648 } | |
| 649 | |
| 650 | |
| 651 void* SafepointBlob::operator new(size_t s, unsigned size) { | |
| 652 void* p = CodeCache::allocate(size); | |
| 653 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 654 return p; | |
| 655 } | |
| 656 | |
| 657 | |
| 658 //---------------------------------------------------------------------------------------------------- | |
| 659 // Verification and printing | |
| 660 | |
| 661 void CodeBlob::verify() { | |
| 662 ShouldNotReachHere(); | |
| 663 } | |
| 664 | |
| 665 #ifndef PRODUCT | |
| 666 | |
| 667 void CodeBlob::print() const { | |
| 668 tty->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", this); | |
| 669 tty->print_cr("Framesize: %d", _frame_size); | |
| 670 } | |
| 671 | |
| 672 | |
| 673 void CodeBlob::print_value_on(outputStream* st) const { | |
| 674 st->print_cr("[CodeBlob]"); | |
| 675 } | |
| 676 | |
| 677 #endif | |
| 678 | |
| 679 void BufferBlob::verify() { | |
| 680 // unimplemented | |
| 681 } | |
| 682 | |
| 683 #ifndef PRODUCT | |
| 684 | |
| 685 void BufferBlob::print() const { | |
| 686 CodeBlob::print(); | |
| 687 print_value_on(tty); | |
| 688 } | |
| 689 | |
| 690 | |
| 691 void BufferBlob::print_value_on(outputStream* st) const { | |
| 692 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", this, name()); | |
| 693 } | |
| 694 | |
| 695 | |
| 696 #endif | |
| 697 | |
| 698 void RuntimeStub::verify() { | |
| 699 // unimplemented | |
| 700 } | |
| 701 | |
| 702 #ifndef PRODUCT | |
| 703 | |
| 704 void RuntimeStub::print() const { | |
| 705 CodeBlob::print(); | |
| 706 tty->print("Runtime Stub (" INTPTR_FORMAT "): ", this); | |
| 707 tty->print_cr(name()); | |
| 708 Disassembler::decode((CodeBlob*)this); | |
| 709 } | |
| 710 | |
| 711 | |
| 712 void RuntimeStub::print_value_on(outputStream* st) const { | |
| 713 st->print("RuntimeStub (" INTPTR_FORMAT "): ", this); st->print(name()); | |
| 714 } | |
| 715 | |
| 716 #endif | |
| 717 | |
| 718 void SingletonBlob::verify() { | |
| 719 // unimplemented | |
| 720 } | |
| 721 | |
| 722 #ifndef PRODUCT | |
| 723 | |
| 724 void SingletonBlob::print() const { | |
| 725 CodeBlob::print(); | |
| 726 tty->print_cr(name()); | |
| 727 Disassembler::decode((CodeBlob*)this); | |
| 728 } | |
| 729 | |
| 730 | |
| 731 void SingletonBlob::print_value_on(outputStream* st) const { | |
| 732 st->print_cr(name()); | |
| 733 } | |
| 734 | |
| 735 void DeoptimizationBlob::print_value_on(outputStream* st) const { | |
| 736 st->print_cr("Deoptimization (frame not available)"); | |
| 737 } | |
| 738 | |
| 739 #endif // PRODUCT |