Mercurial > hg > graal-jvmci-8
annotate src/share/vm/code/codeBlob.cpp @ 1681:126ea7725993
6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes
| author | bobv |
|---|---|
| date | Tue, 03 Aug 2010 08:13:38 -0400 |
| parents | 7139e81efd2d |
| children | 3e8fbc61cee8 |
| 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 |
| 1663 | 205 AdapterBlob::AdapterBlob(int size, CodeBuffer* cb) : |
| 206 BufferBlob("I2C/C2I adapters", size, cb) { | |
| 207 CodeCache::commit(this); | |
| 208 } | |
| 209 | |
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210 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) { |
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211 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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212 |
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213 AdapterBlob* blob = NULL; |
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214 unsigned int size = allocation_size(cb, sizeof(AdapterBlob)); |
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215 { |
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216 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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217 blob = new (size) AdapterBlob(size, cb); |
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218 } |
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219 // Track memory usage statistic after releasing CodeCache_lock |
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220 MemoryService::track_code_cache_memory_usage(); |
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221 |
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222 return blob; |
| 0 | 223 } |
| 224 | |
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225 |
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226 //---------------------------------------------------------------------------------------------------- |
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227 // Implementation of MethodHandlesAdapterBlob |
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228 |
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229 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) { |
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230 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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231 |
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232 MethodHandlesAdapterBlob* blob = NULL; |
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233 unsigned int size = sizeof(MethodHandlesAdapterBlob); |
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234 // align the size to CodeEntryAlignment |
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235 size = align_code_offset(size); |
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236 size += round_to(buffer_size, oopSize); |
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237 { |
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238 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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239 blob = new (size) MethodHandlesAdapterBlob(size); |
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240 } |
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241 // Track memory usage statistic after releasing CodeCache_lock |
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242 MemoryService::track_code_cache_memory_usage(); |
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243 |
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244 return blob; |
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245 } |
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246 |
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247 |
| 0 | 248 //---------------------------------------------------------------------------------------------------- |
| 249 // Implementation of RuntimeStub | |
| 250 | |
| 251 RuntimeStub::RuntimeStub( | |
| 252 const char* name, | |
| 253 CodeBuffer* cb, | |
| 254 int size, | |
| 255 int frame_complete, | |
| 256 int frame_size, | |
| 257 OopMapSet* oop_maps, | |
| 258 bool caller_must_gc_arguments | |
| 259 ) | |
| 260 : CodeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps) | |
| 261 { | |
| 262 _caller_must_gc_arguments = caller_must_gc_arguments; | |
| 263 } | |
| 264 | |
| 265 | |
| 266 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name, | |
| 267 CodeBuffer* cb, | |
| 268 int frame_complete, | |
| 269 int frame_size, | |
| 270 OopMapSet* oop_maps, | |
| 271 bool caller_must_gc_arguments) | |
| 272 { | |
| 273 RuntimeStub* stub = NULL; | |
| 274 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 275 { | |
| 276 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 277 unsigned int size = allocation_size(cb, sizeof(RuntimeStub)); | |
| 278 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments); | |
| 279 } | |
| 280 | |
| 281 // Do not hold the CodeCache lock during name formatting. | |
| 282 if (stub != NULL) { | |
| 283 char stub_id[256]; | |
| 284 jio_snprintf(stub_id, sizeof(stub_id), "RuntimeStub - %s", stub_name); | |
| 285 if (PrintStubCode) { | |
| 286 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, stub); | |
| 287 Disassembler::decode(stub->instructions_begin(), stub->instructions_end()); | |
| 288 } | |
| 289 Forte::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end()); | |
| 290 | |
| 291 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 292 JvmtiExport::post_dynamic_code_generated(stub_name, stub->instructions_begin(), stub->instructions_end()); | |
| 293 } | |
| 294 } | |
| 295 | |
| 296 // Track memory usage statistic after releasing CodeCache_lock | |
| 297 MemoryService::track_code_cache_memory_usage(); | |
| 298 | |
| 299 return stub; | |
| 300 } | |
| 301 | |
| 302 | |
| 303 void* RuntimeStub::operator new(size_t s, unsigned size) { | |
| 304 void* p = CodeCache::allocate(size); | |
| 305 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 306 return p; | |
| 307 } | |
| 308 | |
| 309 | |
| 310 //---------------------------------------------------------------------------------------------------- | |
| 311 // Implementation of DeoptimizationBlob | |
| 312 | |
| 313 DeoptimizationBlob::DeoptimizationBlob( | |
| 314 CodeBuffer* cb, | |
| 315 int size, | |
| 316 OopMapSet* oop_maps, | |
| 317 int unpack_offset, | |
| 318 int unpack_with_exception_offset, | |
| 319 int unpack_with_reexecution_offset, | |
| 320 int frame_size | |
| 321 ) | |
| 322 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps) | |
| 323 { | |
| 324 _unpack_offset = unpack_offset; | |
| 325 _unpack_with_exception = unpack_with_exception_offset; | |
| 326 _unpack_with_reexecution = unpack_with_reexecution_offset; | |
| 327 #ifdef COMPILER1 | |
| 328 _unpack_with_exception_in_tls = -1; | |
| 329 #endif | |
| 330 } | |
| 331 | |
| 332 | |
| 333 DeoptimizationBlob* DeoptimizationBlob::create( | |
| 334 CodeBuffer* cb, | |
| 335 OopMapSet* oop_maps, | |
| 336 int unpack_offset, | |
| 337 int unpack_with_exception_offset, | |
| 338 int unpack_with_reexecution_offset, | |
| 339 int frame_size) | |
| 340 { | |
| 341 DeoptimizationBlob* blob = NULL; | |
| 342 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 343 { | |
| 344 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 345 unsigned int size = allocation_size(cb, sizeof(DeoptimizationBlob)); | |
| 346 blob = new (size) DeoptimizationBlob(cb, | |
| 347 size, | |
| 348 oop_maps, | |
| 349 unpack_offset, | |
| 350 unpack_with_exception_offset, | |
| 351 unpack_with_reexecution_offset, | |
| 352 frame_size); | |
| 353 } | |
| 354 | |
| 355 // Do not hold the CodeCache lock during name formatting. | |
| 356 if (blob != NULL) { | |
| 357 char blob_id[256]; | |
| 358 jio_snprintf(blob_id, sizeof(blob_id), "DeoptimizationBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 359 if (PrintStubCode) { | |
| 360 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 361 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 362 } | |
| 363 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 364 | |
| 365 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 366 JvmtiExport::post_dynamic_code_generated("DeoptimizationBlob", | |
| 367 blob->instructions_begin(), | |
| 368 blob->instructions_end()); | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 // Track memory usage statistic after releasing CodeCache_lock | |
| 373 MemoryService::track_code_cache_memory_usage(); | |
| 374 | |
| 375 return blob; | |
| 376 } | |
| 377 | |
| 378 | |
| 379 void* DeoptimizationBlob::operator new(size_t s, unsigned size) { | |
| 380 void* p = CodeCache::allocate(size); | |
| 381 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 382 return p; | |
| 383 } | |
| 384 | |
| 385 //---------------------------------------------------------------------------------------------------- | |
| 386 // Implementation of UncommonTrapBlob | |
| 387 | |
| 388 #ifdef COMPILER2 | |
| 389 UncommonTrapBlob::UncommonTrapBlob( | |
| 390 CodeBuffer* cb, | |
| 391 int size, | |
| 392 OopMapSet* oop_maps, | |
| 393 int frame_size | |
| 394 ) | |
| 395 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps) | |
| 396 {} | |
| 397 | |
| 398 | |
| 399 UncommonTrapBlob* UncommonTrapBlob::create( | |
| 400 CodeBuffer* cb, | |
| 401 OopMapSet* oop_maps, | |
| 402 int frame_size) | |
| 403 { | |
| 404 UncommonTrapBlob* blob = NULL; | |
| 405 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 406 { | |
| 407 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 408 unsigned int size = allocation_size(cb, sizeof(UncommonTrapBlob)); | |
| 409 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size); | |
| 410 } | |
| 411 | |
| 412 // Do not hold the CodeCache lock during name formatting. | |
| 413 if (blob != NULL) { | |
| 414 char blob_id[256]; | |
| 415 jio_snprintf(blob_id, sizeof(blob_id), "UncommonTrapBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 416 if (PrintStubCode) { | |
| 417 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 418 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 419 } | |
| 420 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 421 | |
| 422 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 423 JvmtiExport::post_dynamic_code_generated("UncommonTrapBlob", | |
| 424 blob->instructions_begin(), | |
| 425 blob->instructions_end()); | |
| 426 } | |
| 427 } | |
| 428 | |
| 429 // Track memory usage statistic after releasing CodeCache_lock | |
| 430 MemoryService::track_code_cache_memory_usage(); | |
| 431 | |
| 432 return blob; | |
| 433 } | |
| 434 | |
| 435 | |
| 436 void* UncommonTrapBlob::operator new(size_t s, unsigned size) { | |
| 437 void* p = CodeCache::allocate(size); | |
| 438 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 439 return p; | |
| 440 } | |
| 441 #endif // COMPILER2 | |
| 442 | |
| 443 | |
| 444 //---------------------------------------------------------------------------------------------------- | |
| 445 // Implementation of ExceptionBlob | |
| 446 | |
| 447 #ifdef COMPILER2 | |
| 448 ExceptionBlob::ExceptionBlob( | |
| 449 CodeBuffer* cb, | |
| 450 int size, | |
| 451 OopMapSet* oop_maps, | |
| 452 int frame_size | |
| 453 ) | |
| 454 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps) | |
| 455 {} | |
| 456 | |
| 457 | |
| 458 ExceptionBlob* ExceptionBlob::create( | |
| 459 CodeBuffer* cb, | |
| 460 OopMapSet* oop_maps, | |
| 461 int frame_size) | |
| 462 { | |
| 463 ExceptionBlob* blob = NULL; | |
| 464 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 465 { | |
| 466 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 467 unsigned int size = allocation_size(cb, sizeof(ExceptionBlob)); | |
| 468 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size); | |
| 469 } | |
| 470 | |
| 471 // We do not need to hold the CodeCache lock during name formatting | |
| 472 if (blob != NULL) { | |
| 473 char blob_id[256]; | |
| 474 jio_snprintf(blob_id, sizeof(blob_id), "ExceptionBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 475 if (PrintStubCode) { | |
| 476 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 477 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 478 } | |
| 479 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end()); | |
| 480 | |
| 481 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 482 JvmtiExport::post_dynamic_code_generated("ExceptionBlob", | |
| 483 blob->instructions_begin(), | |
| 484 blob->instructions_end()); | |
| 485 } | |
| 486 } | |
| 487 | |
| 488 // Track memory usage statistic after releasing CodeCache_lock | |
| 489 MemoryService::track_code_cache_memory_usage(); | |
| 490 | |
| 491 return blob; | |
| 492 } | |
| 493 | |
| 494 | |
| 495 void* ExceptionBlob::operator new(size_t s, unsigned size) { | |
| 496 void* p = CodeCache::allocate(size); | |
| 497 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 498 return p; | |
| 499 } | |
| 500 #endif // COMPILER2 | |
| 501 | |
| 502 | |
| 503 //---------------------------------------------------------------------------------------------------- | |
| 504 // Implementation of SafepointBlob | |
| 505 | |
| 506 SafepointBlob::SafepointBlob( | |
| 507 CodeBuffer* cb, | |
| 508 int size, | |
| 509 OopMapSet* oop_maps, | |
| 510 int frame_size | |
| 511 ) | |
| 512 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps) | |
| 513 {} | |
| 514 | |
| 515 | |
| 516 SafepointBlob* SafepointBlob::create( | |
| 517 CodeBuffer* cb, | |
| 518 OopMapSet* oop_maps, | |
| 519 int frame_size) | |
| 520 { | |
| 521 SafepointBlob* blob = NULL; | |
| 522 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 523 { | |
| 524 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 525 unsigned int size = allocation_size(cb, sizeof(SafepointBlob)); | |
| 526 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size); | |
| 527 } | |
| 528 | |
| 529 // We do not need to hold the CodeCache lock during name formatting. | |
| 530 if (blob != NULL) { | |
| 531 char blob_id[256]; | |
| 532 jio_snprintf(blob_id, sizeof(blob_id), "SafepointBlob@" PTR_FORMAT, blob->instructions_begin()); | |
| 533 if (PrintStubCode) { | |
| 534 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob); | |
| 535 Disassembler::decode(blob->instructions_begin(), blob->instructions_end()); | |
| 536 } | |
| 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 | |
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567 void CodeBlob::print_on(outputStream* st) const { |
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568 st->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", this); |
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569 st->print_cr("Framesize: %d", _frame_size); |
| 0 | 570 } |
| 571 | |
| 572 void CodeBlob::print_value_on(outputStream* st) const { | |
| 573 st->print_cr("[CodeBlob]"); | |
| 574 } | |
| 575 | |
| 576 void BufferBlob::verify() { | |
| 577 // unimplemented | |
| 578 } | |
| 579 | |
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580 void BufferBlob::print_on(outputStream* st) const { |
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581 CodeBlob::print_on(st); |
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582 print_value_on(st); |
| 0 | 583 } |
| 584 | |
| 585 void BufferBlob::print_value_on(outputStream* st) const { | |
| 586 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", this, name()); | |
| 587 } | |
| 588 | |
| 589 void RuntimeStub::verify() { | |
| 590 // unimplemented | |
| 591 } | |
| 592 | |
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593 void RuntimeStub::print_on(outputStream* st) const { |
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594 CodeBlob::print_on(st); |
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595 st->print("Runtime Stub (" INTPTR_FORMAT "): ", this); |
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596 st->print_cr(name()); |
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597 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 598 } |
| 599 | |
| 600 void RuntimeStub::print_value_on(outputStream* st) const { | |
| 601 st->print("RuntimeStub (" INTPTR_FORMAT "): ", this); st->print(name()); | |
| 602 } | |
| 603 | |
| 604 void SingletonBlob::verify() { | |
| 605 // unimplemented | |
| 606 } | |
| 607 | |
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608 void SingletonBlob::print_on(outputStream* st) const { |
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609 CodeBlob::print_on(st); |
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610 st->print_cr(name()); |
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611 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 612 } |
| 613 | |
| 614 void SingletonBlob::print_value_on(outputStream* st) const { | |
| 615 st->print_cr(name()); | |
| 616 } | |
| 617 | |
| 618 void DeoptimizationBlob::print_value_on(outputStream* st) const { | |
| 619 st->print_cr("Deoptimization (frame not available)"); | |
| 620 } |