Mercurial > hg > truffle
annotate src/share/vm/code/codeBlob.cpp @ 2426:1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Tue, 05 Apr 2011 14:12:31 -0700 |
| parents | b92c45f2bc75 |
| children | 167b70ff3abc |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "code/codeBlob.hpp" | |
| 27 #include "code/codeCache.hpp" | |
| 28 #include "code/relocInfo.hpp" | |
| 29 #include "compiler/disassembler.hpp" | |
| 30 #include "interpreter/bytecode.hpp" | |
| 31 #include "memory/allocation.inline.hpp" | |
| 32 #include "memory/heap.hpp" | |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "prims/forte.hpp" | |
| 35 #include "runtime/handles.inline.hpp" | |
| 36 #include "runtime/interfaceSupport.hpp" | |
| 37 #include "runtime/mutexLocker.hpp" | |
| 38 #include "runtime/safepoint.hpp" | |
| 39 #include "runtime/sharedRuntime.hpp" | |
| 40 #include "runtime/vframe.hpp" | |
| 41 #include "services/memoryService.hpp" | |
| 42 #ifdef TARGET_ARCH_x86 | |
| 43 # include "nativeInst_x86.hpp" | |
| 44 #endif | |
| 45 #ifdef TARGET_ARCH_sparc | |
| 46 # include "nativeInst_sparc.hpp" | |
| 47 #endif | |
| 48 #ifdef TARGET_ARCH_zero | |
| 49 # include "nativeInst_zero.hpp" | |
| 50 #endif | |
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51 #ifdef TARGET_ARCH_arm |
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52 # include "nativeInst_arm.hpp" |
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53 #endif |
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54 #ifdef TARGET_ARCH_ppc |
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55 # include "nativeInst_ppc.hpp" |
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56 #endif |
| 1972 | 57 #ifdef COMPILER1 |
| 58 #include "c1/c1_Runtime1.hpp" | |
| 59 #endif | |
| 0 | 60 |
| 61 unsigned int align_code_offset(int offset) { | |
| 62 // align the size to CodeEntryAlignment | |
| 63 return | |
| 64 ((offset + (int)CodeHeap::header_size() + (CodeEntryAlignment-1)) & ~(CodeEntryAlignment-1)) | |
| 65 - (int)CodeHeap::header_size(); | |
| 66 } | |
| 67 | |
| 68 | |
| 69 // This must be consistent with the CodeBlob constructor's layout actions. | |
| 70 unsigned int CodeBlob::allocation_size(CodeBuffer* cb, int header_size) { | |
| 71 unsigned int size = header_size; | |
| 72 size += round_to(cb->total_relocation_size(), oopSize); | |
| 73 // align the size to CodeEntryAlignment | |
| 74 size = align_code_offset(size); | |
| 1748 | 75 size += round_to(cb->total_content_size(), oopSize); |
| 0 | 76 size += round_to(cb->total_oop_size(), oopSize); |
| 77 return size; | |
| 78 } | |
| 79 | |
| 80 | |
| 81 // Creates a simple CodeBlob. Sets up the size of the different regions. | |
| 82 CodeBlob::CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size) { | |
| 1748 | 83 assert(size == round_to(size, oopSize), "unaligned size"); |
| 84 assert(locs_size == round_to(locs_size, oopSize), "unaligned size"); | |
| 0 | 85 assert(header_size == round_to(header_size, oopSize), "unaligned size"); |
| 86 assert(!UseRelocIndex, "no space allocated for reloc index yet"); | |
| 87 | |
| 88 // Note: If UseRelocIndex is enabled, there needs to be (at least) one | |
| 89 // extra word for the relocation information, containing the reloc | |
| 90 // index table length. Unfortunately, the reloc index table imple- | |
| 91 // mentation is not easily understandable and thus it is not clear | |
| 92 // what exactly the format is supposed to be. For now, we just turn | |
| 93 // off the use of this table (gri 7/6/2000). | |
| 94 | |
| 95 _name = name; | |
| 96 _size = size; | |
| 97 _frame_complete_offset = frame_complete; | |
| 98 _header_size = header_size; | |
| 99 _relocation_size = locs_size; | |
| 1748 | 100 _content_offset = align_code_offset(header_size + _relocation_size); |
| 101 _code_offset = _content_offset; | |
| 0 | 102 _data_offset = size; |
| 103 _frame_size = 0; | |
| 104 set_oop_maps(NULL); | |
| 105 } | |
| 106 | |
| 107 | |
| 108 // Creates a CodeBlob from a CodeBuffer. Sets up the size of the different regions, | |
| 109 // and copy code and relocation info. | |
| 110 CodeBlob::CodeBlob( | |
| 111 const char* name, | |
| 112 CodeBuffer* cb, | |
| 113 int header_size, | |
| 114 int size, | |
| 115 int frame_complete, | |
| 116 int frame_size, | |
| 117 OopMapSet* oop_maps | |
| 118 ) { | |
| 1748 | 119 assert(size == round_to(size, oopSize), "unaligned size"); |
| 0 | 120 assert(header_size == round_to(header_size, oopSize), "unaligned size"); |
| 121 | |
| 122 _name = name; | |
| 123 _size = size; | |
| 124 _frame_complete_offset = frame_complete; | |
| 125 _header_size = header_size; | |
| 126 _relocation_size = round_to(cb->total_relocation_size(), oopSize); | |
| 1748 | 127 _content_offset = align_code_offset(header_size + _relocation_size); |
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128 _code_offset = _content_offset + cb->total_offset_of(cb->insts()); |
| 1748 | 129 _data_offset = _content_offset + round_to(cb->total_content_size(), oopSize); |
| 0 | 130 assert(_data_offset <= size, "codeBlob is too small"); |
| 131 | |
| 132 cb->copy_code_and_locs_to(this); | |
| 133 set_oop_maps(oop_maps); | |
| 134 _frame_size = frame_size; | |
| 135 #ifdef COMPILER1 | |
| 136 // probably wrong for tiered | |
| 137 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs"); | |
| 138 #endif // COMPILER1 | |
| 139 } | |
| 140 | |
| 141 | |
| 142 void CodeBlob::set_oop_maps(OopMapSet* p) { | |
| 143 // Danger Will Robinson! This method allocates a big | |
| 144 // chunk of memory, its your job to free it. | |
| 145 if (p != NULL) { | |
| 146 // We need to allocate a chunk big enough to hold the OopMapSet and all of its OopMaps | |
| 147 _oop_maps = (OopMapSet* )NEW_C_HEAP_ARRAY(unsigned char, p->heap_size()); | |
| 148 p->copy_to((address)_oop_maps); | |
| 149 } else { | |
| 150 _oop_maps = NULL; | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 | |
| 155 void CodeBlob::flush() { | |
| 156 if (_oop_maps) { | |
| 157 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps); | |
| 158 _oop_maps = NULL; | |
| 159 } | |
| 160 _comments.free(); | |
| 161 } | |
| 162 | |
| 163 | |
| 164 OopMap* CodeBlob::oop_map_for_return_address(address return_address) { | |
| 1748 | 165 assert(oop_maps() != NULL, "nope"); |
| 166 return oop_maps()->find_map_at_offset((intptr_t) return_address - (intptr_t) code_begin()); | |
| 0 | 167 } |
| 168 | |
| 169 | |
| 170 //---------------------------------------------------------------------------------------------------- | |
| 171 // Implementation of BufferBlob | |
| 172 | |
| 173 | |
| 174 BufferBlob::BufferBlob(const char* name, int size) | |
| 175 : CodeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0) | |
| 176 {} | |
| 177 | |
| 178 BufferBlob* BufferBlob::create(const char* name, int buffer_size) { | |
| 179 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 180 | |
| 181 BufferBlob* blob = NULL; | |
| 182 unsigned int size = sizeof(BufferBlob); | |
| 183 // align the size to CodeEntryAlignment | |
| 184 size = align_code_offset(size); | |
| 185 size += round_to(buffer_size, oopSize); | |
| 186 assert(name != NULL, "must provide a name"); | |
| 187 { | |
| 188 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 189 blob = new (size) BufferBlob(name, size); | |
| 190 } | |
| 191 // Track memory usage statistic after releasing CodeCache_lock | |
| 192 MemoryService::track_code_cache_memory_usage(); | |
| 193 | |
| 194 return blob; | |
| 195 } | |
| 196 | |
| 197 | |
| 198 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb) | |
| 199 : CodeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL) | |
| 200 {} | |
| 201 | |
| 202 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) { | |
| 203 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 204 | |
| 205 BufferBlob* blob = NULL; | |
| 206 unsigned int size = allocation_size(cb, sizeof(BufferBlob)); | |
| 207 assert(name != NULL, "must provide a name"); | |
| 208 { | |
| 209 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 210 blob = new (size) BufferBlob(name, size, cb); | |
| 211 } | |
| 212 // Track memory usage statistic after releasing CodeCache_lock | |
| 213 MemoryService::track_code_cache_memory_usage(); | |
| 214 | |
| 215 return blob; | |
| 216 } | |
| 217 | |
| 218 | |
| 219 void* BufferBlob::operator new(size_t s, unsigned size) { | |
| 220 void* p = CodeCache::allocate(size); | |
| 221 return p; | |
| 222 } | |
| 223 | |
| 224 | |
| 225 void BufferBlob::free( BufferBlob *blob ) { | |
| 226 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 227 { | |
| 228 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 229 CodeCache::free((CodeBlob*)blob); | |
| 230 } | |
| 231 // Track memory usage statistic after releasing CodeCache_lock | |
| 232 MemoryService::track_code_cache_memory_usage(); | |
| 233 } | |
| 234 | |
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235 |
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236 //---------------------------------------------------------------------------------------------------- |
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237 // Implementation of AdapterBlob |
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238 |
| 1663 | 239 AdapterBlob::AdapterBlob(int size, CodeBuffer* cb) : |
| 240 BufferBlob("I2C/C2I adapters", size, cb) { | |
| 241 CodeCache::commit(this); | |
| 242 } | |
| 243 | |
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244 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) { |
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245 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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246 |
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247 AdapterBlob* blob = NULL; |
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248 unsigned int size = allocation_size(cb, sizeof(AdapterBlob)); |
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249 { |
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250 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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251 blob = new (size) AdapterBlob(size, cb); |
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252 } |
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253 // Track memory usage statistic after releasing CodeCache_lock |
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254 MemoryService::track_code_cache_memory_usage(); |
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255 |
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256 return blob; |
| 0 | 257 } |
| 258 | |
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259 |
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260 //---------------------------------------------------------------------------------------------------- |
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261 // Implementation of MethodHandlesAdapterBlob |
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262 |
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263 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) { |
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264 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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265 |
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266 MethodHandlesAdapterBlob* blob = NULL; |
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267 unsigned int size = sizeof(MethodHandlesAdapterBlob); |
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268 // align the size to CodeEntryAlignment |
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269 size = align_code_offset(size); |
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270 size += round_to(buffer_size, oopSize); |
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271 { |
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272 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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273 blob = new (size) MethodHandlesAdapterBlob(size); |
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274 } |
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275 // Track memory usage statistic after releasing CodeCache_lock |
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276 MemoryService::track_code_cache_memory_usage(); |
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277 |
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278 return blob; |
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279 } |
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280 |
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281 |
| 0 | 282 //---------------------------------------------------------------------------------------------------- |
| 283 // Implementation of RuntimeStub | |
| 284 | |
| 285 RuntimeStub::RuntimeStub( | |
| 286 const char* name, | |
| 287 CodeBuffer* cb, | |
| 288 int size, | |
| 289 int frame_complete, | |
| 290 int frame_size, | |
| 291 OopMapSet* oop_maps, | |
| 292 bool caller_must_gc_arguments | |
| 293 ) | |
| 294 : CodeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps) | |
| 295 { | |
| 296 _caller_must_gc_arguments = caller_must_gc_arguments; | |
| 297 } | |
| 298 | |
| 299 | |
| 300 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name, | |
| 301 CodeBuffer* cb, | |
| 302 int frame_complete, | |
| 303 int frame_size, | |
| 304 OopMapSet* oop_maps, | |
| 305 bool caller_must_gc_arguments) | |
| 306 { | |
| 307 RuntimeStub* stub = NULL; | |
| 308 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 309 { | |
| 310 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 311 unsigned int size = allocation_size(cb, sizeof(RuntimeStub)); | |
| 312 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments); | |
| 313 } | |
| 314 | |
| 315 // Do not hold the CodeCache lock during name formatting. | |
| 316 if (stub != NULL) { | |
| 317 char stub_id[256]; | |
| 318 jio_snprintf(stub_id, sizeof(stub_id), "RuntimeStub - %s", stub_name); | |
| 319 if (PrintStubCode) { | |
| 320 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, stub); | |
| 1748 | 321 Disassembler::decode(stub->code_begin(), stub->code_end()); |
| 0 | 322 } |
| 1748 | 323 Forte::register_stub(stub_id, stub->code_begin(), stub->code_end()); |
| 0 | 324 |
| 325 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 326 JvmtiExport::post_dynamic_code_generated(stub_name, stub->code_begin(), stub->code_end()); |
| 0 | 327 } |
| 328 } | |
| 329 | |
| 330 // Track memory usage statistic after releasing CodeCache_lock | |
| 331 MemoryService::track_code_cache_memory_usage(); | |
| 332 | |
| 333 return stub; | |
| 334 } | |
| 335 | |
| 336 | |
| 337 void* RuntimeStub::operator new(size_t s, unsigned size) { | |
| 338 void* p = CodeCache::allocate(size); | |
| 339 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 340 return p; | |
| 341 } | |
| 342 | |
| 343 | |
| 344 //---------------------------------------------------------------------------------------------------- | |
| 345 // Implementation of DeoptimizationBlob | |
| 346 | |
| 347 DeoptimizationBlob::DeoptimizationBlob( | |
| 348 CodeBuffer* cb, | |
| 349 int size, | |
| 350 OopMapSet* oop_maps, | |
| 351 int unpack_offset, | |
| 352 int unpack_with_exception_offset, | |
| 353 int unpack_with_reexecution_offset, | |
| 354 int frame_size | |
| 355 ) | |
| 356 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps) | |
| 357 { | |
| 358 _unpack_offset = unpack_offset; | |
| 359 _unpack_with_exception = unpack_with_exception_offset; | |
| 360 _unpack_with_reexecution = unpack_with_reexecution_offset; | |
| 361 #ifdef COMPILER1 | |
| 362 _unpack_with_exception_in_tls = -1; | |
| 363 #endif | |
| 364 } | |
| 365 | |
| 366 | |
| 367 DeoptimizationBlob* DeoptimizationBlob::create( | |
| 368 CodeBuffer* cb, | |
| 369 OopMapSet* oop_maps, | |
| 370 int unpack_offset, | |
| 371 int unpack_with_exception_offset, | |
| 372 int unpack_with_reexecution_offset, | |
| 373 int frame_size) | |
| 374 { | |
| 375 DeoptimizationBlob* blob = NULL; | |
| 376 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 377 { | |
| 378 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 379 unsigned int size = allocation_size(cb, sizeof(DeoptimizationBlob)); | |
| 380 blob = new (size) DeoptimizationBlob(cb, | |
| 381 size, | |
| 382 oop_maps, | |
| 383 unpack_offset, | |
| 384 unpack_with_exception_offset, | |
| 385 unpack_with_reexecution_offset, | |
| 386 frame_size); | |
| 387 } | |
| 388 | |
| 389 // Do not hold the CodeCache lock during name formatting. | |
| 390 if (blob != NULL) { | |
| 391 char blob_id[256]; | |
| 1748 | 392 jio_snprintf(blob_id, sizeof(blob_id), "DeoptimizationBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 393 if (PrintStubCode) { |
| 394 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 395 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 396 } |
| 1748 | 397 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 398 |
| 399 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 400 JvmtiExport::post_dynamic_code_generated("DeoptimizationBlob", blob->code_begin(), blob->code_end()); |
| 0 | 401 } |
| 402 } | |
| 403 | |
| 404 // Track memory usage statistic after releasing CodeCache_lock | |
| 405 MemoryService::track_code_cache_memory_usage(); | |
| 406 | |
| 407 return blob; | |
| 408 } | |
| 409 | |
| 410 | |
| 411 void* DeoptimizationBlob::operator new(size_t s, unsigned size) { | |
| 412 void* p = CodeCache::allocate(size); | |
| 413 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 414 return p; | |
| 415 } | |
| 416 | |
| 417 //---------------------------------------------------------------------------------------------------- | |
| 418 // Implementation of UncommonTrapBlob | |
| 419 | |
| 420 #ifdef COMPILER2 | |
| 421 UncommonTrapBlob::UncommonTrapBlob( | |
| 422 CodeBuffer* cb, | |
| 423 int size, | |
| 424 OopMapSet* oop_maps, | |
| 425 int frame_size | |
| 426 ) | |
| 427 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps) | |
| 428 {} | |
| 429 | |
| 430 | |
| 431 UncommonTrapBlob* UncommonTrapBlob::create( | |
| 432 CodeBuffer* cb, | |
| 433 OopMapSet* oop_maps, | |
| 434 int frame_size) | |
| 435 { | |
| 436 UncommonTrapBlob* blob = NULL; | |
| 437 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 438 { | |
| 439 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 440 unsigned int size = allocation_size(cb, sizeof(UncommonTrapBlob)); | |
| 441 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size); | |
| 442 } | |
| 443 | |
| 444 // Do not hold the CodeCache lock during name formatting. | |
| 445 if (blob != NULL) { | |
| 446 char blob_id[256]; | |
| 1748 | 447 jio_snprintf(blob_id, sizeof(blob_id), "UncommonTrapBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 448 if (PrintStubCode) { |
| 449 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 450 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 451 } |
| 1748 | 452 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 453 |
| 454 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 455 JvmtiExport::post_dynamic_code_generated("UncommonTrapBlob", blob->code_begin(), blob->code_end()); |
| 0 | 456 } |
| 457 } | |
| 458 | |
| 459 // Track memory usage statistic after releasing CodeCache_lock | |
| 460 MemoryService::track_code_cache_memory_usage(); | |
| 461 | |
| 462 return blob; | |
| 463 } | |
| 464 | |
| 465 | |
| 466 void* UncommonTrapBlob::operator new(size_t s, unsigned size) { | |
| 467 void* p = CodeCache::allocate(size); | |
| 468 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 469 return p; | |
| 470 } | |
| 471 #endif // COMPILER2 | |
| 472 | |
| 473 | |
| 474 //---------------------------------------------------------------------------------------------------- | |
| 475 // Implementation of ExceptionBlob | |
| 476 | |
| 477 #ifdef COMPILER2 | |
| 478 ExceptionBlob::ExceptionBlob( | |
| 479 CodeBuffer* cb, | |
| 480 int size, | |
| 481 OopMapSet* oop_maps, | |
| 482 int frame_size | |
| 483 ) | |
| 484 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps) | |
| 485 {} | |
| 486 | |
| 487 | |
| 488 ExceptionBlob* ExceptionBlob::create( | |
| 489 CodeBuffer* cb, | |
| 490 OopMapSet* oop_maps, | |
| 491 int frame_size) | |
| 492 { | |
| 493 ExceptionBlob* blob = NULL; | |
| 494 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 495 { | |
| 496 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 497 unsigned int size = allocation_size(cb, sizeof(ExceptionBlob)); | |
| 498 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size); | |
| 499 } | |
| 500 | |
| 501 // We do not need to hold the CodeCache lock during name formatting | |
| 502 if (blob != NULL) { | |
| 503 char blob_id[256]; | |
| 1748 | 504 jio_snprintf(blob_id, sizeof(blob_id), "ExceptionBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 505 if (PrintStubCode) { |
| 506 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 507 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 508 } |
| 1748 | 509 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 510 |
| 511 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 512 JvmtiExport::post_dynamic_code_generated("ExceptionBlob", blob->code_begin(), blob->code_end()); |
| 0 | 513 } |
| 514 } | |
| 515 | |
| 516 // Track memory usage statistic after releasing CodeCache_lock | |
| 517 MemoryService::track_code_cache_memory_usage(); | |
| 518 | |
| 519 return blob; | |
| 520 } | |
| 521 | |
| 522 | |
| 523 void* ExceptionBlob::operator new(size_t s, unsigned size) { | |
| 524 void* p = CodeCache::allocate(size); | |
| 525 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 526 return p; | |
| 527 } | |
| 528 #endif // COMPILER2 | |
| 529 | |
| 530 | |
| 531 //---------------------------------------------------------------------------------------------------- | |
| 532 // Implementation of SafepointBlob | |
| 533 | |
| 534 SafepointBlob::SafepointBlob( | |
| 535 CodeBuffer* cb, | |
| 536 int size, | |
| 537 OopMapSet* oop_maps, | |
| 538 int frame_size | |
| 539 ) | |
| 540 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps) | |
| 541 {} | |
| 542 | |
| 543 | |
| 544 SafepointBlob* SafepointBlob::create( | |
| 545 CodeBuffer* cb, | |
| 546 OopMapSet* oop_maps, | |
| 547 int frame_size) | |
| 548 { | |
| 549 SafepointBlob* blob = NULL; | |
| 550 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 551 { | |
| 552 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 553 unsigned int size = allocation_size(cb, sizeof(SafepointBlob)); | |
| 554 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size); | |
| 555 } | |
| 556 | |
| 557 // We do not need to hold the CodeCache lock during name formatting. | |
| 558 if (blob != NULL) { | |
| 559 char blob_id[256]; | |
| 1748 | 560 jio_snprintf(blob_id, sizeof(blob_id), "SafepointBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 561 if (PrintStubCode) { |
| 562 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 563 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 564 } |
| 1748 | 565 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 566 |
| 567 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 568 JvmtiExport::post_dynamic_code_generated("SafepointBlob", blob->code_begin(), blob->code_end()); |
| 0 | 569 } |
| 570 } | |
| 571 | |
| 572 // Track memory usage statistic after releasing CodeCache_lock | |
| 573 MemoryService::track_code_cache_memory_usage(); | |
| 574 | |
| 575 return blob; | |
| 576 } | |
| 577 | |
| 578 | |
| 579 void* SafepointBlob::operator new(size_t s, unsigned size) { | |
| 580 void* p = CodeCache::allocate(size); | |
| 581 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 582 return p; | |
| 583 } | |
| 584 | |
| 585 | |
| 586 //---------------------------------------------------------------------------------------------------- | |
| 587 // Verification and printing | |
| 588 | |
| 589 void CodeBlob::verify() { | |
| 590 ShouldNotReachHere(); | |
| 591 } | |
| 592 | |
|
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593 void CodeBlob::print_on(outputStream* st) const { |
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594 st->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", this); |
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595 st->print_cr("Framesize: %d", _frame_size); |
| 0 | 596 } |
| 597 | |
| 598 void CodeBlob::print_value_on(outputStream* st) const { | |
| 599 st->print_cr("[CodeBlob]"); | |
| 600 } | |
| 601 | |
| 602 void BufferBlob::verify() { | |
| 603 // unimplemented | |
| 604 } | |
| 605 | |
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606 void BufferBlob::print_on(outputStream* st) const { |
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607 CodeBlob::print_on(st); |
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608 print_value_on(st); |
| 0 | 609 } |
| 610 | |
| 611 void BufferBlob::print_value_on(outputStream* st) const { | |
| 612 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", this, name()); | |
| 613 } | |
| 614 | |
| 615 void RuntimeStub::verify() { | |
| 616 // unimplemented | |
| 617 } | |
| 618 | |
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619 void RuntimeStub::print_on(outputStream* st) const { |
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620 CodeBlob::print_on(st); |
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621 st->print("Runtime Stub (" INTPTR_FORMAT "): ", this); |
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622 st->print_cr(name()); |
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623 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 624 } |
| 625 | |
| 626 void RuntimeStub::print_value_on(outputStream* st) const { | |
| 627 st->print("RuntimeStub (" INTPTR_FORMAT "): ", this); st->print(name()); | |
| 628 } | |
| 629 | |
| 630 void SingletonBlob::verify() { | |
| 631 // unimplemented | |
| 632 } | |
| 633 | |
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634 void SingletonBlob::print_on(outputStream* st) const { |
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635 CodeBlob::print_on(st); |
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636 st->print_cr(name()); |
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637 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 638 } |
| 639 | |
| 640 void SingletonBlob::print_value_on(outputStream* st) const { | |
| 641 st->print_cr(name()); | |
| 642 } | |
| 643 | |
| 644 void DeoptimizationBlob::print_value_on(outputStream* st) const { | |
| 645 st->print_cr("Deoptimization (frame not available)"); | |
| 646 } |