Mercurial > hg > graal-jvmci-8
annotate src/share/vm/code/codeBlob.cpp @ 2142:8012aa3ccede
4926272: methodOopDesc::method_from_bcp is unsafe
Reviewed-by: coleenp, jrose, kvn, dcubed
| author | never |
|---|---|
| date | Thu, 13 Jan 2011 22:15:41 -0800 |
| parents | f95d63e2154a |
| children | b92c45f2bc75 |
| 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 | |
| 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 | |
| 51 #ifdef COMPILER1 | |
| 52 #include "c1/c1_Runtime1.hpp" | |
| 53 #endif | |
| 0 | 54 |
| 55 unsigned int align_code_offset(int offset) { | |
| 56 // align the size to CodeEntryAlignment | |
| 57 return | |
| 58 ((offset + (int)CodeHeap::header_size() + (CodeEntryAlignment-1)) & ~(CodeEntryAlignment-1)) | |
| 59 - (int)CodeHeap::header_size(); | |
| 60 } | |
| 61 | |
| 62 | |
| 63 // This must be consistent with the CodeBlob constructor's layout actions. | |
| 64 unsigned int CodeBlob::allocation_size(CodeBuffer* cb, int header_size) { | |
| 65 unsigned int size = header_size; | |
| 66 size += round_to(cb->total_relocation_size(), oopSize); | |
| 67 // align the size to CodeEntryAlignment | |
| 68 size = align_code_offset(size); | |
| 1748 | 69 size += round_to(cb->total_content_size(), oopSize); |
| 0 | 70 size += round_to(cb->total_oop_size(), oopSize); |
| 71 return size; | |
| 72 } | |
| 73 | |
| 74 | |
| 75 // Creates a simple CodeBlob. Sets up the size of the different regions. | |
| 76 CodeBlob::CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size) { | |
| 1748 | 77 assert(size == round_to(size, oopSize), "unaligned size"); |
| 78 assert(locs_size == round_to(locs_size, oopSize), "unaligned size"); | |
| 0 | 79 assert(header_size == round_to(header_size, oopSize), "unaligned size"); |
| 80 assert(!UseRelocIndex, "no space allocated for reloc index yet"); | |
| 81 | |
| 82 // Note: If UseRelocIndex is enabled, there needs to be (at least) one | |
| 83 // extra word for the relocation information, containing the reloc | |
| 84 // index table length. Unfortunately, the reloc index table imple- | |
| 85 // mentation is not easily understandable and thus it is not clear | |
| 86 // what exactly the format is supposed to be. For now, we just turn | |
| 87 // off the use of this table (gri 7/6/2000). | |
| 88 | |
| 89 _name = name; | |
| 90 _size = size; | |
| 91 _frame_complete_offset = frame_complete; | |
| 92 _header_size = header_size; | |
| 93 _relocation_size = locs_size; | |
| 1748 | 94 _content_offset = align_code_offset(header_size + _relocation_size); |
| 95 _code_offset = _content_offset; | |
| 0 | 96 _data_offset = size; |
| 97 _frame_size = 0; | |
| 98 set_oop_maps(NULL); | |
| 99 } | |
| 100 | |
| 101 | |
| 102 // Creates a CodeBlob from a CodeBuffer. Sets up the size of the different regions, | |
| 103 // and copy code and relocation info. | |
| 104 CodeBlob::CodeBlob( | |
| 105 const char* name, | |
| 106 CodeBuffer* cb, | |
| 107 int header_size, | |
| 108 int size, | |
| 109 int frame_complete, | |
| 110 int frame_size, | |
| 111 OopMapSet* oop_maps | |
| 112 ) { | |
| 1748 | 113 assert(size == round_to(size, oopSize), "unaligned size"); |
| 0 | 114 assert(header_size == round_to(header_size, oopSize), "unaligned size"); |
| 115 | |
| 116 _name = name; | |
| 117 _size = size; | |
| 118 _frame_complete_offset = frame_complete; | |
| 119 _header_size = header_size; | |
| 120 _relocation_size = round_to(cb->total_relocation_size(), oopSize); | |
| 1748 | 121 _content_offset = align_code_offset(header_size + _relocation_size); |
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122 _code_offset = _content_offset + cb->total_offset_of(cb->insts()); |
| 1748 | 123 _data_offset = _content_offset + round_to(cb->total_content_size(), oopSize); |
| 0 | 124 assert(_data_offset <= size, "codeBlob is too small"); |
| 125 | |
| 126 cb->copy_code_and_locs_to(this); | |
| 127 set_oop_maps(oop_maps); | |
| 128 _frame_size = frame_size; | |
| 129 #ifdef COMPILER1 | |
| 130 // probably wrong for tiered | |
| 131 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs"); | |
| 132 #endif // COMPILER1 | |
| 133 } | |
| 134 | |
| 135 | |
| 136 void CodeBlob::set_oop_maps(OopMapSet* p) { | |
| 137 // Danger Will Robinson! This method allocates a big | |
| 138 // chunk of memory, its your job to free it. | |
| 139 if (p != NULL) { | |
| 140 // We need to allocate a chunk big enough to hold the OopMapSet and all of its OopMaps | |
| 141 _oop_maps = (OopMapSet* )NEW_C_HEAP_ARRAY(unsigned char, p->heap_size()); | |
| 142 p->copy_to((address)_oop_maps); | |
| 143 } else { | |
| 144 _oop_maps = NULL; | |
| 145 } | |
| 146 } | |
| 147 | |
| 148 | |
| 149 void CodeBlob::flush() { | |
| 150 if (_oop_maps) { | |
| 151 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps); | |
| 152 _oop_maps = NULL; | |
| 153 } | |
| 154 _comments.free(); | |
| 155 } | |
| 156 | |
| 157 | |
| 158 OopMap* CodeBlob::oop_map_for_return_address(address return_address) { | |
| 1748 | 159 assert(oop_maps() != NULL, "nope"); |
| 160 return oop_maps()->find_map_at_offset((intptr_t) return_address - (intptr_t) code_begin()); | |
| 0 | 161 } |
| 162 | |
| 163 | |
| 164 //---------------------------------------------------------------------------------------------------- | |
| 165 // Implementation of BufferBlob | |
| 166 | |
| 167 | |
| 168 BufferBlob::BufferBlob(const char* name, int size) | |
| 169 : CodeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0) | |
| 170 {} | |
| 171 | |
| 172 BufferBlob* BufferBlob::create(const char* name, int buffer_size) { | |
| 173 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 174 | |
| 175 BufferBlob* blob = NULL; | |
| 176 unsigned int size = sizeof(BufferBlob); | |
| 177 // align the size to CodeEntryAlignment | |
| 178 size = align_code_offset(size); | |
| 179 size += round_to(buffer_size, oopSize); | |
| 180 assert(name != NULL, "must provide a name"); | |
| 181 { | |
| 182 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 183 blob = new (size) BufferBlob(name, size); | |
| 184 } | |
| 185 // Track memory usage statistic after releasing CodeCache_lock | |
| 186 MemoryService::track_code_cache_memory_usage(); | |
| 187 | |
| 188 return blob; | |
| 189 } | |
| 190 | |
| 191 | |
| 192 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb) | |
| 193 : CodeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL) | |
| 194 {} | |
| 195 | |
| 196 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) { | |
| 197 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 198 | |
| 199 BufferBlob* blob = NULL; | |
| 200 unsigned int size = allocation_size(cb, sizeof(BufferBlob)); | |
| 201 assert(name != NULL, "must provide a name"); | |
| 202 { | |
| 203 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 204 blob = new (size) BufferBlob(name, size, cb); | |
| 205 } | |
| 206 // Track memory usage statistic after releasing CodeCache_lock | |
| 207 MemoryService::track_code_cache_memory_usage(); | |
| 208 | |
| 209 return blob; | |
| 210 } | |
| 211 | |
| 212 | |
| 213 void* BufferBlob::operator new(size_t s, unsigned size) { | |
| 214 void* p = CodeCache::allocate(size); | |
| 215 return p; | |
| 216 } | |
| 217 | |
| 218 | |
| 219 void BufferBlob::free( BufferBlob *blob ) { | |
| 220 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 221 { | |
| 222 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 223 CodeCache::free((CodeBlob*)blob); | |
| 224 } | |
| 225 // Track memory usage statistic after releasing CodeCache_lock | |
| 226 MemoryService::track_code_cache_memory_usage(); | |
| 227 } | |
| 228 | |
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229 |
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230 //---------------------------------------------------------------------------------------------------- |
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231 // Implementation of AdapterBlob |
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232 |
| 1663 | 233 AdapterBlob::AdapterBlob(int size, CodeBuffer* cb) : |
| 234 BufferBlob("I2C/C2I adapters", size, cb) { | |
| 235 CodeCache::commit(this); | |
| 236 } | |
| 237 | |
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238 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) { |
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239 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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240 |
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241 AdapterBlob* blob = NULL; |
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242 unsigned int size = allocation_size(cb, sizeof(AdapterBlob)); |
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243 { |
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244 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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245 blob = new (size) AdapterBlob(size, cb); |
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246 } |
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247 // Track memory usage statistic after releasing CodeCache_lock |
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248 MemoryService::track_code_cache_memory_usage(); |
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249 |
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250 return blob; |
| 0 | 251 } |
| 252 | |
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253 |
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254 //---------------------------------------------------------------------------------------------------- |
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255 // Implementation of MethodHandlesAdapterBlob |
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256 |
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257 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) { |
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258 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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259 |
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260 MethodHandlesAdapterBlob* blob = NULL; |
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261 unsigned int size = sizeof(MethodHandlesAdapterBlob); |
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262 // align the size to CodeEntryAlignment |
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263 size = align_code_offset(size); |
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264 size += round_to(buffer_size, oopSize); |
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265 { |
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266 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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267 blob = new (size) MethodHandlesAdapterBlob(size); |
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268 } |
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269 // Track memory usage statistic after releasing CodeCache_lock |
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270 MemoryService::track_code_cache_memory_usage(); |
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271 |
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272 return blob; |
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273 } |
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274 |
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275 |
| 0 | 276 //---------------------------------------------------------------------------------------------------- |
| 277 // Implementation of RuntimeStub | |
| 278 | |
| 279 RuntimeStub::RuntimeStub( | |
| 280 const char* name, | |
| 281 CodeBuffer* cb, | |
| 282 int size, | |
| 283 int frame_complete, | |
| 284 int frame_size, | |
| 285 OopMapSet* oop_maps, | |
| 286 bool caller_must_gc_arguments | |
| 287 ) | |
| 288 : CodeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps) | |
| 289 { | |
| 290 _caller_must_gc_arguments = caller_must_gc_arguments; | |
| 291 } | |
| 292 | |
| 293 | |
| 294 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name, | |
| 295 CodeBuffer* cb, | |
| 296 int frame_complete, | |
| 297 int frame_size, | |
| 298 OopMapSet* oop_maps, | |
| 299 bool caller_must_gc_arguments) | |
| 300 { | |
| 301 RuntimeStub* stub = NULL; | |
| 302 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 303 { | |
| 304 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 305 unsigned int size = allocation_size(cb, sizeof(RuntimeStub)); | |
| 306 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments); | |
| 307 } | |
| 308 | |
| 309 // Do not hold the CodeCache lock during name formatting. | |
| 310 if (stub != NULL) { | |
| 311 char stub_id[256]; | |
| 312 jio_snprintf(stub_id, sizeof(stub_id), "RuntimeStub - %s", stub_name); | |
| 313 if (PrintStubCode) { | |
| 314 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, stub); | |
| 1748 | 315 Disassembler::decode(stub->code_begin(), stub->code_end()); |
| 0 | 316 } |
| 1748 | 317 Forte::register_stub(stub_id, stub->code_begin(), stub->code_end()); |
| 0 | 318 |
| 319 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 320 JvmtiExport::post_dynamic_code_generated(stub_name, stub->code_begin(), stub->code_end()); |
| 0 | 321 } |
| 322 } | |
| 323 | |
| 324 // Track memory usage statistic after releasing CodeCache_lock | |
| 325 MemoryService::track_code_cache_memory_usage(); | |
| 326 | |
| 327 return stub; | |
| 328 } | |
| 329 | |
| 330 | |
| 331 void* RuntimeStub::operator new(size_t s, unsigned size) { | |
| 332 void* p = CodeCache::allocate(size); | |
| 333 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 334 return p; | |
| 335 } | |
| 336 | |
| 337 | |
| 338 //---------------------------------------------------------------------------------------------------- | |
| 339 // Implementation of DeoptimizationBlob | |
| 340 | |
| 341 DeoptimizationBlob::DeoptimizationBlob( | |
| 342 CodeBuffer* cb, | |
| 343 int size, | |
| 344 OopMapSet* oop_maps, | |
| 345 int unpack_offset, | |
| 346 int unpack_with_exception_offset, | |
| 347 int unpack_with_reexecution_offset, | |
| 348 int frame_size | |
| 349 ) | |
| 350 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps) | |
| 351 { | |
| 352 _unpack_offset = unpack_offset; | |
| 353 _unpack_with_exception = unpack_with_exception_offset; | |
| 354 _unpack_with_reexecution = unpack_with_reexecution_offset; | |
| 355 #ifdef COMPILER1 | |
| 356 _unpack_with_exception_in_tls = -1; | |
| 357 #endif | |
| 358 } | |
| 359 | |
| 360 | |
| 361 DeoptimizationBlob* DeoptimizationBlob::create( | |
| 362 CodeBuffer* cb, | |
| 363 OopMapSet* oop_maps, | |
| 364 int unpack_offset, | |
| 365 int unpack_with_exception_offset, | |
| 366 int unpack_with_reexecution_offset, | |
| 367 int frame_size) | |
| 368 { | |
| 369 DeoptimizationBlob* blob = NULL; | |
| 370 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 371 { | |
| 372 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 373 unsigned int size = allocation_size(cb, sizeof(DeoptimizationBlob)); | |
| 374 blob = new (size) DeoptimizationBlob(cb, | |
| 375 size, | |
| 376 oop_maps, | |
| 377 unpack_offset, | |
| 378 unpack_with_exception_offset, | |
| 379 unpack_with_reexecution_offset, | |
| 380 frame_size); | |
| 381 } | |
| 382 | |
| 383 // Do not hold the CodeCache lock during name formatting. | |
| 384 if (blob != NULL) { | |
| 385 char blob_id[256]; | |
| 1748 | 386 jio_snprintf(blob_id, sizeof(blob_id), "DeoptimizationBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 387 if (PrintStubCode) { |
| 388 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 389 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 390 } |
| 1748 | 391 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 392 |
| 393 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 394 JvmtiExport::post_dynamic_code_generated("DeoptimizationBlob", blob->code_begin(), blob->code_end()); |
| 0 | 395 } |
| 396 } | |
| 397 | |
| 398 // Track memory usage statistic after releasing CodeCache_lock | |
| 399 MemoryService::track_code_cache_memory_usage(); | |
| 400 | |
| 401 return blob; | |
| 402 } | |
| 403 | |
| 404 | |
| 405 void* DeoptimizationBlob::operator new(size_t s, unsigned size) { | |
| 406 void* p = CodeCache::allocate(size); | |
| 407 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 408 return p; | |
| 409 } | |
| 410 | |
| 411 //---------------------------------------------------------------------------------------------------- | |
| 412 // Implementation of UncommonTrapBlob | |
| 413 | |
| 414 #ifdef COMPILER2 | |
| 415 UncommonTrapBlob::UncommonTrapBlob( | |
| 416 CodeBuffer* cb, | |
| 417 int size, | |
| 418 OopMapSet* oop_maps, | |
| 419 int frame_size | |
| 420 ) | |
| 421 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps) | |
| 422 {} | |
| 423 | |
| 424 | |
| 425 UncommonTrapBlob* UncommonTrapBlob::create( | |
| 426 CodeBuffer* cb, | |
| 427 OopMapSet* oop_maps, | |
| 428 int frame_size) | |
| 429 { | |
| 430 UncommonTrapBlob* blob = NULL; | |
| 431 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 432 { | |
| 433 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 434 unsigned int size = allocation_size(cb, sizeof(UncommonTrapBlob)); | |
| 435 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size); | |
| 436 } | |
| 437 | |
| 438 // Do not hold the CodeCache lock during name formatting. | |
| 439 if (blob != NULL) { | |
| 440 char blob_id[256]; | |
| 1748 | 441 jio_snprintf(blob_id, sizeof(blob_id), "UncommonTrapBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 442 if (PrintStubCode) { |
| 443 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 444 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 445 } |
| 1748 | 446 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 447 |
| 448 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 449 JvmtiExport::post_dynamic_code_generated("UncommonTrapBlob", blob->code_begin(), blob->code_end()); |
| 0 | 450 } |
| 451 } | |
| 452 | |
| 453 // Track memory usage statistic after releasing CodeCache_lock | |
| 454 MemoryService::track_code_cache_memory_usage(); | |
| 455 | |
| 456 return blob; | |
| 457 } | |
| 458 | |
| 459 | |
| 460 void* UncommonTrapBlob::operator new(size_t s, unsigned size) { | |
| 461 void* p = CodeCache::allocate(size); | |
| 462 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 463 return p; | |
| 464 } | |
| 465 #endif // COMPILER2 | |
| 466 | |
| 467 | |
| 468 //---------------------------------------------------------------------------------------------------- | |
| 469 // Implementation of ExceptionBlob | |
| 470 | |
| 471 #ifdef COMPILER2 | |
| 472 ExceptionBlob::ExceptionBlob( | |
| 473 CodeBuffer* cb, | |
| 474 int size, | |
| 475 OopMapSet* oop_maps, | |
| 476 int frame_size | |
| 477 ) | |
| 478 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps) | |
| 479 {} | |
| 480 | |
| 481 | |
| 482 ExceptionBlob* ExceptionBlob::create( | |
| 483 CodeBuffer* cb, | |
| 484 OopMapSet* oop_maps, | |
| 485 int frame_size) | |
| 486 { | |
| 487 ExceptionBlob* blob = NULL; | |
| 488 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 489 { | |
| 490 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 491 unsigned int size = allocation_size(cb, sizeof(ExceptionBlob)); | |
| 492 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size); | |
| 493 } | |
| 494 | |
| 495 // We do not need to hold the CodeCache lock during name formatting | |
| 496 if (blob != NULL) { | |
| 497 char blob_id[256]; | |
| 1748 | 498 jio_snprintf(blob_id, sizeof(blob_id), "ExceptionBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 499 if (PrintStubCode) { |
| 500 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 501 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 502 } |
| 1748 | 503 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 504 |
| 505 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 506 JvmtiExport::post_dynamic_code_generated("ExceptionBlob", blob->code_begin(), blob->code_end()); |
| 0 | 507 } |
| 508 } | |
| 509 | |
| 510 // Track memory usage statistic after releasing CodeCache_lock | |
| 511 MemoryService::track_code_cache_memory_usage(); | |
| 512 | |
| 513 return blob; | |
| 514 } | |
| 515 | |
| 516 | |
| 517 void* ExceptionBlob::operator new(size_t s, unsigned size) { | |
| 518 void* p = CodeCache::allocate(size); | |
| 519 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 520 return p; | |
| 521 } | |
| 522 #endif // COMPILER2 | |
| 523 | |
| 524 | |
| 525 //---------------------------------------------------------------------------------------------------- | |
| 526 // Implementation of SafepointBlob | |
| 527 | |
| 528 SafepointBlob::SafepointBlob( | |
| 529 CodeBuffer* cb, | |
| 530 int size, | |
| 531 OopMapSet* oop_maps, | |
| 532 int frame_size | |
| 533 ) | |
| 534 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps) | |
| 535 {} | |
| 536 | |
| 537 | |
| 538 SafepointBlob* SafepointBlob::create( | |
| 539 CodeBuffer* cb, | |
| 540 OopMapSet* oop_maps, | |
| 541 int frame_size) | |
| 542 { | |
| 543 SafepointBlob* blob = NULL; | |
| 544 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 545 { | |
| 546 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 547 unsigned int size = allocation_size(cb, sizeof(SafepointBlob)); | |
| 548 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size); | |
| 549 } | |
| 550 | |
| 551 // We do not need to hold the CodeCache lock during name formatting. | |
| 552 if (blob != NULL) { | |
| 553 char blob_id[256]; | |
| 1748 | 554 jio_snprintf(blob_id, sizeof(blob_id), "SafepointBlob@" PTR_FORMAT, blob->code_begin()); |
| 0 | 555 if (PrintStubCode) { |
| 556 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 1748 | 557 Disassembler::decode(blob->code_begin(), blob->code_end()); |
| 0 | 558 } |
| 1748 | 559 Forte::register_stub(blob_id, blob->code_begin(), blob->code_end()); |
| 0 | 560 |
| 561 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 1748 | 562 JvmtiExport::post_dynamic_code_generated("SafepointBlob", blob->code_begin(), blob->code_end()); |
| 0 | 563 } |
| 564 } | |
| 565 | |
| 566 // Track memory usage statistic after releasing CodeCache_lock | |
| 567 MemoryService::track_code_cache_memory_usage(); | |
| 568 | |
| 569 return blob; | |
| 570 } | |
| 571 | |
| 572 | |
| 573 void* SafepointBlob::operator new(size_t s, unsigned size) { | |
| 574 void* p = CodeCache::allocate(size); | |
| 575 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 576 return p; | |
| 577 } | |
| 578 | |
| 579 | |
| 580 //---------------------------------------------------------------------------------------------------- | |
| 581 // Verification and printing | |
| 582 | |
| 583 void CodeBlob::verify() { | |
| 584 ShouldNotReachHere(); | |
| 585 } | |
| 586 | |
|
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587 void CodeBlob::print_on(outputStream* st) const { |
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588 st->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", this); |
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589 st->print_cr("Framesize: %d", _frame_size); |
| 0 | 590 } |
| 591 | |
| 592 void CodeBlob::print_value_on(outputStream* st) const { | |
| 593 st->print_cr("[CodeBlob]"); | |
| 594 } | |
| 595 | |
| 596 void BufferBlob::verify() { | |
| 597 // unimplemented | |
| 598 } | |
| 599 | |
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600 void BufferBlob::print_on(outputStream* st) const { |
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601 CodeBlob::print_on(st); |
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602 print_value_on(st); |
| 0 | 603 } |
| 604 | |
| 605 void BufferBlob::print_value_on(outputStream* st) const { | |
| 606 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", this, name()); | |
| 607 } | |
| 608 | |
| 609 void RuntimeStub::verify() { | |
| 610 // unimplemented | |
| 611 } | |
| 612 | |
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613 void RuntimeStub::print_on(outputStream* st) const { |
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614 CodeBlob::print_on(st); |
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615 st->print("Runtime Stub (" INTPTR_FORMAT "): ", this); |
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616 st->print_cr(name()); |
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617 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 618 } |
| 619 | |
| 620 void RuntimeStub::print_value_on(outputStream* st) const { | |
| 621 st->print("RuntimeStub (" INTPTR_FORMAT "): ", this); st->print(name()); | |
| 622 } | |
| 623 | |
| 624 void SingletonBlob::verify() { | |
| 625 // unimplemented | |
| 626 } | |
| 627 | |
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628 void SingletonBlob::print_on(outputStream* st) const { |
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629 CodeBlob::print_on(st); |
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630 st->print_cr(name()); |
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631 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 632 } |
| 633 | |
| 634 void SingletonBlob::print_value_on(outputStream* st) const { | |
| 635 st->print_cr(name()); | |
| 636 } | |
| 637 | |
| 638 void DeoptimizationBlob::print_value_on(outputStream* st) const { | |
| 639 st->print_cr("Deoptimization (frame not available)"); | |
| 640 } |