Mercurial > hg > graal-jvmci-8
annotate src/share/vm/code/codeBlob.cpp @ 1579:e9ff18c4ace7
Merge
| author | jrose |
|---|---|
| date | Wed, 02 Jun 2010 22:45:42 -0700 |
| parents | c18cbe5936b8 1a5913bf5e19 |
| children | 2a47bd84841f |
| 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 _frame_size = 0; | |
| 70 set_oop_maps(NULL); | |
| 71 } | |
| 72 | |
| 73 | |
| 74 // Creates a CodeBlob from a CodeBuffer. Sets up the size of the different regions, | |
| 75 // and copy code and relocation info. | |
| 76 CodeBlob::CodeBlob( | |
| 77 const char* name, | |
| 78 CodeBuffer* cb, | |
| 79 int header_size, | |
| 80 int size, | |
| 81 int frame_complete, | |
| 82 int frame_size, | |
| 83 OopMapSet* oop_maps | |
| 84 ) { | |
| 85 assert(size == round_to(size, oopSize), "unaligned size"); | |
| 86 assert(header_size == round_to(header_size, oopSize), "unaligned size"); | |
| 87 | |
| 88 _name = name; | |
| 89 _size = size; | |
| 90 _frame_complete_offset = frame_complete; | |
| 91 _header_size = header_size; | |
| 92 _relocation_size = round_to(cb->total_relocation_size(), oopSize); | |
| 93 _instructions_offset = align_code_offset(header_size + _relocation_size); | |
| 94 _data_offset = _instructions_offset + round_to(cb->total_code_size(), oopSize); | |
| 95 assert(_data_offset <= size, "codeBlob is too small"); | |
| 96 | |
| 97 cb->copy_code_and_locs_to(this); | |
| 98 set_oop_maps(oop_maps); | |
| 99 _frame_size = frame_size; | |
| 100 #ifdef COMPILER1 | |
| 101 // probably wrong for tiered | |
| 102 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs"); | |
| 103 #endif // COMPILER1 | |
| 104 } | |
| 105 | |
| 106 | |
| 107 void CodeBlob::set_oop_maps(OopMapSet* p) { | |
| 108 // Danger Will Robinson! This method allocates a big | |
| 109 // chunk of memory, its your job to free it. | |
| 110 if (p != NULL) { | |
| 111 // We need to allocate a chunk big enough to hold the OopMapSet and all of its OopMaps | |
| 112 _oop_maps = (OopMapSet* )NEW_C_HEAP_ARRAY(unsigned char, p->heap_size()); | |
| 113 p->copy_to((address)_oop_maps); | |
| 114 } else { | |
| 115 _oop_maps = NULL; | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 | |
| 120 void CodeBlob::flush() { | |
| 121 if (_oop_maps) { | |
| 122 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps); | |
| 123 _oop_maps = NULL; | |
| 124 } | |
| 125 _comments.free(); | |
| 126 } | |
| 127 | |
| 128 | |
| 129 OopMap* CodeBlob::oop_map_for_return_address(address return_address) { | |
| 130 address pc = return_address ; | |
| 131 assert (oop_maps() != NULL, "nope"); | |
| 132 return oop_maps()->find_map_at_offset ((intptr_t) pc - (intptr_t) instructions_begin()); | |
| 133 } | |
| 134 | |
| 135 | |
| 136 //---------------------------------------------------------------------------------------------------- | |
| 137 // Implementation of BufferBlob | |
| 138 | |
| 139 | |
| 140 BufferBlob::BufferBlob(const char* name, int size) | |
| 141 : CodeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0) | |
| 142 {} | |
| 143 | |
| 144 BufferBlob* BufferBlob::create(const char* name, int buffer_size) { | |
| 145 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 146 | |
| 147 BufferBlob* blob = NULL; | |
| 148 unsigned int size = sizeof(BufferBlob); | |
| 149 // align the size to CodeEntryAlignment | |
| 150 size = align_code_offset(size); | |
| 151 size += round_to(buffer_size, oopSize); | |
| 152 assert(name != NULL, "must provide a name"); | |
| 153 { | |
| 154 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 155 blob = new (size) BufferBlob(name, size); | |
| 156 } | |
| 157 // Track memory usage statistic after releasing CodeCache_lock | |
| 158 MemoryService::track_code_cache_memory_usage(); | |
| 159 | |
| 160 return blob; | |
| 161 } | |
| 162 | |
| 163 | |
| 164 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb) | |
| 165 : CodeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL) | |
| 166 {} | |
| 167 | |
| 168 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) { | |
| 169 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 170 | |
| 171 BufferBlob* blob = NULL; | |
| 172 unsigned int size = allocation_size(cb, sizeof(BufferBlob)); | |
| 173 assert(name != NULL, "must provide a name"); | |
| 174 { | |
| 175 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 176 blob = new (size) BufferBlob(name, size, cb); | |
| 177 } | |
| 178 // Track memory usage statistic after releasing CodeCache_lock | |
| 179 MemoryService::track_code_cache_memory_usage(); | |
| 180 | |
| 181 return blob; | |
| 182 } | |
| 183 | |
| 184 | |
| 185 void* BufferBlob::operator new(size_t s, unsigned size) { | |
| 186 void* p = CodeCache::allocate(size); | |
| 187 return p; | |
| 188 } | |
| 189 | |
| 190 | |
| 191 void BufferBlob::free( BufferBlob *blob ) { | |
| 192 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 193 { | |
| 194 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 195 CodeCache::free((CodeBlob*)blob); | |
| 196 } | |
| 197 // Track memory usage statistic after releasing CodeCache_lock | |
| 198 MemoryService::track_code_cache_memory_usage(); | |
| 199 } | |
| 200 | |
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201 |
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202 //---------------------------------------------------------------------------------------------------- |
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203 // Implementation of AdapterBlob |
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204 |
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205 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) { |
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206 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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207 |
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208 AdapterBlob* blob = NULL; |
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209 unsigned int size = allocation_size(cb, sizeof(AdapterBlob)); |
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210 { |
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211 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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212 blob = new (size) AdapterBlob(size, cb); |
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213 } |
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214 // Track memory usage statistic after releasing CodeCache_lock |
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215 MemoryService::track_code_cache_memory_usage(); |
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216 |
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217 return blob; |
| 0 | 218 } |
| 219 | |
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220 |
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221 //---------------------------------------------------------------------------------------------------- |
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222 // Implementation of MethodHandlesAdapterBlob |
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223 |
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224 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) { |
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225 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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226 |
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227 MethodHandlesAdapterBlob* blob = NULL; |
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228 unsigned int size = sizeof(MethodHandlesAdapterBlob); |
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229 // align the size to CodeEntryAlignment |
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230 size = align_code_offset(size); |
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231 size += round_to(buffer_size, oopSize); |
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232 { |
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233 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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234 blob = new (size) MethodHandlesAdapterBlob(size); |
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235 } |
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236 // Track memory usage statistic after releasing CodeCache_lock |
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237 MemoryService::track_code_cache_memory_usage(); |
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238 |
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239 return blob; |
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240 } |
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241 |
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242 |
| 0 | 243 //---------------------------------------------------------------------------------------------------- |
| 244 // Implementation of RuntimeStub | |
| 245 | |
| 246 RuntimeStub::RuntimeStub( | |
| 247 const char* name, | |
| 248 CodeBuffer* cb, | |
| 249 int size, | |
| 250 int frame_complete, | |
| 251 int frame_size, | |
| 252 OopMapSet* oop_maps, | |
| 253 bool caller_must_gc_arguments | |
| 254 ) | |
| 255 : CodeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps) | |
| 256 { | |
| 257 _caller_must_gc_arguments = caller_must_gc_arguments; | |
| 258 } | |
| 259 | |
| 260 | |
| 261 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name, | |
| 262 CodeBuffer* cb, | |
| 263 int frame_complete, | |
| 264 int frame_size, | |
| 265 OopMapSet* oop_maps, | |
| 266 bool caller_must_gc_arguments) | |
| 267 { | |
| 268 RuntimeStub* stub = NULL; | |
| 269 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 270 { | |
| 271 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 272 unsigned int size = allocation_size(cb, sizeof(RuntimeStub)); | |
| 273 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments); | |
| 274 } | |
| 275 | |
| 276 // Do not hold the CodeCache lock during name formatting. | |
| 277 if (stub != NULL) { | |
| 278 char stub_id[256]; | |
| 279 jio_snprintf(stub_id, sizeof(stub_id), "RuntimeStub - %s", stub_name); | |
| 280 if (PrintStubCode) { | |
| 281 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, stub); | |
| 282 Disassembler::decode(stub->instructions_begin(), stub->instructions_end()); | |
| 283 } | |
| 284 VTune::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end()); | |
| 285 Forte::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end()); | |
| 286 | |
| 287 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 288 JvmtiExport::post_dynamic_code_generated(stub_name, stub->instructions_begin(), stub->instructions_end()); | |
| 289 } | |
| 290 } | |
| 291 | |
| 292 // Track memory usage statistic after releasing CodeCache_lock | |
| 293 MemoryService::track_code_cache_memory_usage(); | |
| 294 | |
| 295 return stub; | |
| 296 } | |
| 297 | |
| 298 | |
| 299 void* RuntimeStub::operator new(size_t s, unsigned size) { | |
| 300 void* p = CodeCache::allocate(size); | |
| 301 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 302 return p; | |
| 303 } | |
| 304 | |
| 305 | |
| 306 //---------------------------------------------------------------------------------------------------- | |
| 307 // Implementation of DeoptimizationBlob | |
| 308 | |
| 309 DeoptimizationBlob::DeoptimizationBlob( | |
| 310 CodeBuffer* cb, | |
| 311 int size, | |
| 312 OopMapSet* oop_maps, | |
| 313 int unpack_offset, | |
| 314 int unpack_with_exception_offset, | |
| 315 int unpack_with_reexecution_offset, | |
| 316 int frame_size | |
| 317 ) | |
| 318 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps) | |
| 319 { | |
| 320 _unpack_offset = unpack_offset; | |
| 321 _unpack_with_exception = unpack_with_exception_offset; | |
| 322 _unpack_with_reexecution = unpack_with_reexecution_offset; | |
| 323 #ifdef COMPILER1 | |
| 324 _unpack_with_exception_in_tls = -1; | |
| 325 #endif | |
| 326 } | |
| 327 | |
| 328 | |
| 329 DeoptimizationBlob* DeoptimizationBlob::create( | |
| 330 CodeBuffer* cb, | |
| 331 OopMapSet* oop_maps, | |
| 332 int unpack_offset, | |
| 333 int unpack_with_exception_offset, | |
| 334 int unpack_with_reexecution_offset, | |
| 335 int frame_size) | |
| 336 { | |
| 337 DeoptimizationBlob* blob = NULL; | |
| 338 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 339 { | |
| 340 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 341 unsigned int size = allocation_size(cb, sizeof(DeoptimizationBlob)); | |
| 342 blob = new (size) DeoptimizationBlob(cb, | |
| 343 size, | |
| 344 oop_maps, | |
| 345 unpack_offset, | |
| 346 unpack_with_exception_offset, | |
| 347 unpack_with_reexecution_offset, | |
| 348 frame_size); | |
| 349 } | |
| 350 | |
| 351 // Do not hold the CodeCache lock during name formatting. | |
| 352 if (blob != NULL) { | |
| 353 char blob_id[256]; | |
| 354 jio_snprintf(blob_id, sizeof(blob_id), "DeoptimizationBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 355 if (PrintStubCode) { | |
| 356 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 357 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 358 } | |
| 359 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 360 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 361 | |
| 362 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 363 JvmtiExport::post_dynamic_code_generated("DeoptimizationBlob", | |
| 364 blob->instructions_begin(), | |
| 365 blob->instructions_end()); | |
| 366 } | |
| 367 } | |
| 368 | |
| 369 // Track memory usage statistic after releasing CodeCache_lock | |
| 370 MemoryService::track_code_cache_memory_usage(); | |
| 371 | |
| 372 return blob; | |
| 373 } | |
| 374 | |
| 375 | |
| 376 void* DeoptimizationBlob::operator new(size_t s, unsigned size) { | |
| 377 void* p = CodeCache::allocate(size); | |
| 378 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 379 return p; | |
| 380 } | |
| 381 | |
| 382 //---------------------------------------------------------------------------------------------------- | |
| 383 // Implementation of UncommonTrapBlob | |
| 384 | |
| 385 #ifdef COMPILER2 | |
| 386 UncommonTrapBlob::UncommonTrapBlob( | |
| 387 CodeBuffer* cb, | |
| 388 int size, | |
| 389 OopMapSet* oop_maps, | |
| 390 int frame_size | |
| 391 ) | |
| 392 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps) | |
| 393 {} | |
| 394 | |
| 395 | |
| 396 UncommonTrapBlob* UncommonTrapBlob::create( | |
| 397 CodeBuffer* cb, | |
| 398 OopMapSet* oop_maps, | |
| 399 int frame_size) | |
| 400 { | |
| 401 UncommonTrapBlob* blob = NULL; | |
| 402 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 403 { | |
| 404 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 405 unsigned int size = allocation_size(cb, sizeof(UncommonTrapBlob)); | |
| 406 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size); | |
| 407 } | |
| 408 | |
| 409 // Do not hold the CodeCache lock during name formatting. | |
| 410 if (blob != NULL) { | |
| 411 char blob_id[256]; | |
| 412 jio_snprintf(blob_id, sizeof(blob_id), "UncommonTrapBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 413 if (PrintStubCode) { | |
| 414 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 415 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 416 } | |
| 417 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 418 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 419 | |
| 420 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 421 JvmtiExport::post_dynamic_code_generated("UncommonTrapBlob", | |
| 422 blob->instructions_begin(), | |
| 423 blob->instructions_end()); | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 // Track memory usage statistic after releasing CodeCache_lock | |
| 428 MemoryService::track_code_cache_memory_usage(); | |
| 429 | |
| 430 return blob; | |
| 431 } | |
| 432 | |
| 433 | |
| 434 void* UncommonTrapBlob::operator new(size_t s, unsigned size) { | |
| 435 void* p = CodeCache::allocate(size); | |
| 436 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 437 return p; | |
| 438 } | |
| 439 #endif // COMPILER2 | |
| 440 | |
| 441 | |
| 442 //---------------------------------------------------------------------------------------------------- | |
| 443 // Implementation of ExceptionBlob | |
| 444 | |
| 445 #ifdef COMPILER2 | |
| 446 ExceptionBlob::ExceptionBlob( | |
| 447 CodeBuffer* cb, | |
| 448 int size, | |
| 449 OopMapSet* oop_maps, | |
| 450 int frame_size | |
| 451 ) | |
| 452 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps) | |
| 453 {} | |
| 454 | |
| 455 | |
| 456 ExceptionBlob* ExceptionBlob::create( | |
| 457 CodeBuffer* cb, | |
| 458 OopMapSet* oop_maps, | |
| 459 int frame_size) | |
| 460 { | |
| 461 ExceptionBlob* blob = NULL; | |
| 462 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 463 { | |
| 464 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 465 unsigned int size = allocation_size(cb, sizeof(ExceptionBlob)); | |
| 466 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size); | |
| 467 } | |
| 468 | |
| 469 // We do not need to hold the CodeCache lock during name formatting | |
| 470 if (blob != NULL) { | |
| 471 char blob_id[256]; | |
| 472 jio_snprintf(blob_id, sizeof(blob_id), "ExceptionBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 473 if (PrintStubCode) { | |
| 474 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 475 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 476 } | |
| 477 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 478 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 479 | |
| 480 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 481 JvmtiExport::post_dynamic_code_generated("ExceptionBlob", | |
| 482 blob->instructions_begin(), | |
| 483 blob->instructions_end()); | |
| 484 } | |
| 485 } | |
| 486 | |
| 487 // Track memory usage statistic after releasing CodeCache_lock | |
| 488 MemoryService::track_code_cache_memory_usage(); | |
| 489 | |
| 490 return blob; | |
| 491 } | |
| 492 | |
| 493 | |
| 494 void* ExceptionBlob::operator new(size_t s, unsigned size) { | |
| 495 void* p = CodeCache::allocate(size); | |
| 496 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 497 return p; | |
| 498 } | |
| 499 #endif // COMPILER2 | |
| 500 | |
| 501 | |
| 502 //---------------------------------------------------------------------------------------------------- | |
| 503 // Implementation of SafepointBlob | |
| 504 | |
| 505 SafepointBlob::SafepointBlob( | |
| 506 CodeBuffer* cb, | |
| 507 int size, | |
| 508 OopMapSet* oop_maps, | |
| 509 int frame_size | |
| 510 ) | |
| 511 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps) | |
| 512 {} | |
| 513 | |
| 514 | |
| 515 SafepointBlob* SafepointBlob::create( | |
| 516 CodeBuffer* cb, | |
| 517 OopMapSet* oop_maps, | |
| 518 int frame_size) | |
| 519 { | |
| 520 SafepointBlob* blob = NULL; | |
| 521 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 522 { | |
| 523 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 524 unsigned int size = allocation_size(cb, sizeof(SafepointBlob)); | |
| 525 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size); | |
| 526 } | |
| 527 | |
| 528 // We do not need to hold the CodeCache lock during name formatting. | |
| 529 if (blob != NULL) { | |
| 530 char blob_id[256]; | |
| 531 jio_snprintf(blob_id, sizeof(blob_id), "SafepointBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 532 if (PrintStubCode) { | |
| 533 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 534 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 535 } | |
| 536 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 537 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 538 | |
| 539 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 540 JvmtiExport::post_dynamic_code_generated("SafepointBlob", | |
| 541 blob->instructions_begin(), | |
| 542 blob->instructions_end()); | |
| 543 } | |
| 544 } | |
| 545 | |
| 546 // Track memory usage statistic after releasing CodeCache_lock | |
| 547 MemoryService::track_code_cache_memory_usage(); | |
| 548 | |
| 549 return blob; | |
| 550 } | |
| 551 | |
| 552 | |
| 553 void* SafepointBlob::operator new(size_t s, unsigned size) { | |
| 554 void* p = CodeCache::allocate(size); | |
| 555 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 556 return p; | |
| 557 } | |
| 558 | |
| 559 | |
| 560 //---------------------------------------------------------------------------------------------------- | |
| 561 // Verification and printing | |
| 562 | |
| 563 void CodeBlob::verify() { | |
| 564 ShouldNotReachHere(); | |
| 565 } | |
| 566 | |
| 567 #ifndef PRODUCT | |
| 568 | |
| 569 void CodeBlob::print() const { | |
| 570 tty->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", this); | |
| 571 tty->print_cr("Framesize: %d", _frame_size); | |
| 572 } | |
| 573 | |
| 574 | |
| 575 void CodeBlob::print_value_on(outputStream* st) const { | |
| 576 st->print_cr("[CodeBlob]"); | |
| 577 } | |
| 578 | |
| 579 #endif | |
| 580 | |
| 581 void BufferBlob::verify() { | |
| 582 // unimplemented | |
| 583 } | |
| 584 | |
| 585 #ifndef PRODUCT | |
| 586 | |
| 587 void BufferBlob::print() const { | |
| 588 CodeBlob::print(); | |
| 589 print_value_on(tty); | |
| 590 } | |
| 591 | |
| 592 | |
| 593 void BufferBlob::print_value_on(outputStream* st) const { | |
| 594 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", this, name()); | |
| 595 } | |
| 596 | |
| 597 | |
| 598 #endif | |
| 599 | |
| 600 void RuntimeStub::verify() { | |
| 601 // unimplemented | |
| 602 } | |
| 603 | |
| 604 #ifndef PRODUCT | |
| 605 | |
| 606 void RuntimeStub::print() const { | |
| 607 CodeBlob::print(); | |
| 608 tty->print("Runtime Stub (" INTPTR_FORMAT "): ", this); | |
| 609 tty->print_cr(name()); | |
| 610 Disassembler::decode((CodeBlob*)this); | |
| 611 } | |
| 612 | |
| 613 | |
| 614 void RuntimeStub::print_value_on(outputStream* st) const { | |
| 615 st->print("RuntimeStub (" INTPTR_FORMAT "): ", this); st->print(name()); | |
| 616 } | |
| 617 | |
| 618 #endif | |
| 619 | |
| 620 void SingletonBlob::verify() { | |
| 621 // unimplemented | |
| 622 } | |
| 623 | |
| 624 #ifndef PRODUCT | |
| 625 | |
| 626 void SingletonBlob::print() const { | |
| 627 CodeBlob::print(); | |
| 628 tty->print_cr(name()); | |
| 629 Disassembler::decode((CodeBlob*)this); | |
| 630 } | |
| 631 | |
| 632 | |
| 633 void SingletonBlob::print_value_on(outputStream* st) const { | |
| 634 st->print_cr(name()); | |
| 635 } | |
| 636 | |
| 637 void DeoptimizationBlob::print_value_on(outputStream* st) const { | |
| 638 st->print_cr("Deoptimization (frame not available)"); | |
| 639 } | |
| 640 | |
| 641 #endif // PRODUCT |