Mercurial > hg > truffle
annotate src/share/vm/code/codeBlob.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | 1d7922586cf6 |
| children | b31471cdc53e |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1998, 2012, 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); |
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77 size += round_to(cb->total_metadata_size(), oopSize); |
| 0 | 78 return size; |
| 79 } | |
| 80 | |
| 81 | |
| 82 // Creates a simple CodeBlob. Sets up the size of the different regions. | |
| 83 CodeBlob::CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size) { | |
| 1748 | 84 assert(size == round_to(size, oopSize), "unaligned size"); |
| 85 assert(locs_size == round_to(locs_size, oopSize), "unaligned size"); | |
| 0 | 86 assert(header_size == round_to(header_size, oopSize), "unaligned size"); |
| 87 assert(!UseRelocIndex, "no space allocated for reloc index yet"); | |
| 88 | |
| 89 // Note: If UseRelocIndex is enabled, there needs to be (at least) one | |
| 90 // extra word for the relocation information, containing the reloc | |
| 91 // index table length. Unfortunately, the reloc index table imple- | |
| 92 // mentation is not easily understandable and thus it is not clear | |
| 93 // what exactly the format is supposed to be. For now, we just turn | |
| 94 // off the use of this table (gri 7/6/2000). | |
| 95 | |
| 96 _name = name; | |
| 97 _size = size; | |
| 98 _frame_complete_offset = frame_complete; | |
| 99 _header_size = header_size; | |
| 100 _relocation_size = locs_size; | |
| 1748 | 101 _content_offset = align_code_offset(header_size + _relocation_size); |
| 102 _code_offset = _content_offset; | |
| 0 | 103 _data_offset = size; |
| 104 _frame_size = 0; | |
| 105 set_oop_maps(NULL); | |
| 106 } | |
| 107 | |
| 108 | |
| 109 // Creates a CodeBlob from a CodeBuffer. Sets up the size of the different regions, | |
| 110 // and copy code and relocation info. | |
| 111 CodeBlob::CodeBlob( | |
| 112 const char* name, | |
| 113 CodeBuffer* cb, | |
| 114 int header_size, | |
| 115 int size, | |
| 116 int frame_complete, | |
| 117 int frame_size, | |
| 118 OopMapSet* oop_maps | |
| 119 ) { | |
| 1748 | 120 assert(size == round_to(size, oopSize), "unaligned size"); |
| 0 | 121 assert(header_size == round_to(header_size, oopSize), "unaligned size"); |
| 122 | |
| 123 _name = name; | |
| 124 _size = size; | |
| 125 _frame_complete_offset = frame_complete; | |
| 126 _header_size = header_size; | |
| 127 _relocation_size = round_to(cb->total_relocation_size(), oopSize); | |
| 1748 | 128 _content_offset = align_code_offset(header_size + _relocation_size); |
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129 _code_offset = _content_offset + cb->total_offset_of(cb->insts()); |
| 1748 | 130 _data_offset = _content_offset + round_to(cb->total_content_size(), oopSize); |
| 0 | 131 assert(_data_offset <= size, "codeBlob is too small"); |
| 132 | |
| 133 cb->copy_code_and_locs_to(this); | |
| 134 set_oop_maps(oop_maps); | |
| 135 _frame_size = frame_size; | |
| 136 #ifdef COMPILER1 | |
| 137 // probably wrong for tiered | |
| 138 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs"); | |
| 139 #endif // COMPILER1 | |
| 140 } | |
| 141 | |
| 142 | |
| 143 void CodeBlob::set_oop_maps(OopMapSet* p) { | |
| 144 // Danger Will Robinson! This method allocates a big | |
| 145 // chunk of memory, its your job to free it. | |
| 146 if (p != NULL) { | |
| 147 // We need to allocate a chunk big enough to hold the OopMapSet and all of its OopMaps | |
| 6197 | 148 _oop_maps = (OopMapSet* )NEW_C_HEAP_ARRAY(unsigned char, p->heap_size(), mtCode); |
| 0 | 149 p->copy_to((address)_oop_maps); |
| 150 } else { | |
| 151 _oop_maps = NULL; | |
| 152 } | |
| 153 } | |
| 154 | |
| 155 | |
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156 void CodeBlob::trace_new_stub(CodeBlob* stub, const char* name1, const char* name2) { |
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157 // Do not hold the CodeCache lock during name formatting. |
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158 assert(!CodeCache_lock->owned_by_self(), "release CodeCache before registering the stub"); |
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159 |
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160 if (stub != NULL) { |
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161 char stub_id[256]; |
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162 assert(strlen(name1) + strlen(name2) < sizeof(stub_id), ""); |
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163 jio_snprintf(stub_id, sizeof(stub_id), "%s%s", name1, name2); |
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164 if (PrintStubCode) { |
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165 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, (intptr_t) stub); |
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166 Disassembler::decode(stub->code_begin(), stub->code_end()); |
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167 } |
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168 Forte::register_stub(stub_id, stub->code_begin(), stub->code_end()); |
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169 |
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170 if (JvmtiExport::should_post_dynamic_code_generated()) { |
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171 const char* stub_name = name2; |
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172 if (name2[0] == '\0') stub_name = name1; |
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173 JvmtiExport::post_dynamic_code_generated(stub_name, stub->code_begin(), stub->code_end()); |
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174 } |
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175 } |
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176 |
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177 // Track memory usage statistic after releasing CodeCache_lock |
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178 MemoryService::track_code_cache_memory_usage(); |
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179 } |
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180 |
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181 |
| 0 | 182 void CodeBlob::flush() { |
| 183 if (_oop_maps) { | |
| 6197 | 184 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps, mtCode); |
| 0 | 185 _oop_maps = NULL; |
| 186 } | |
| 187 _comments.free(); | |
| 188 } | |
| 189 | |
| 190 | |
| 191 OopMap* CodeBlob::oop_map_for_return_address(address return_address) { | |
| 1748 | 192 assert(oop_maps() != NULL, "nope"); |
| 193 return oop_maps()->find_map_at_offset((intptr_t) return_address - (intptr_t) code_begin()); | |
| 0 | 194 } |
| 195 | |
| 196 | |
| 197 //---------------------------------------------------------------------------------------------------- | |
| 198 // Implementation of BufferBlob | |
| 199 | |
| 200 | |
| 201 BufferBlob::BufferBlob(const char* name, int size) | |
| 202 : CodeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0) | |
| 203 {} | |
| 204 | |
| 205 BufferBlob* BufferBlob::create(const char* name, int buffer_size) { | |
| 206 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 207 | |
| 208 BufferBlob* blob = NULL; | |
| 209 unsigned int size = sizeof(BufferBlob); | |
| 210 // align the size to CodeEntryAlignment | |
| 211 size = align_code_offset(size); | |
| 212 size += round_to(buffer_size, oopSize); | |
| 213 assert(name != NULL, "must provide a name"); | |
| 214 { | |
| 215 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 216 blob = new (size) BufferBlob(name, size); | |
| 217 } | |
| 218 // Track memory usage statistic after releasing CodeCache_lock | |
| 219 MemoryService::track_code_cache_memory_usage(); | |
| 220 | |
| 221 return blob; | |
| 222 } | |
| 223 | |
| 224 | |
| 225 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb) | |
| 226 : CodeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL) | |
| 227 {} | |
| 228 | |
| 229 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) { | |
| 230 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 231 | |
| 232 BufferBlob* blob = NULL; | |
| 233 unsigned int size = allocation_size(cb, sizeof(BufferBlob)); | |
| 234 assert(name != NULL, "must provide a name"); | |
| 235 { | |
| 236 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 237 blob = new (size) BufferBlob(name, size, cb); | |
| 238 } | |
| 239 // Track memory usage statistic after releasing CodeCache_lock | |
| 240 MemoryService::track_code_cache_memory_usage(); | |
| 241 | |
| 242 return blob; | |
| 243 } | |
| 244 | |
| 245 | |
| 246 void* BufferBlob::operator new(size_t s, unsigned size) { | |
| 247 void* p = CodeCache::allocate(size); | |
| 248 return p; | |
| 249 } | |
| 250 | |
| 251 | |
| 252 void BufferBlob::free( BufferBlob *blob ) { | |
| 253 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 254 { | |
| 255 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 256 CodeCache::free((CodeBlob*)blob); | |
| 257 } | |
| 258 // Track memory usage statistic after releasing CodeCache_lock | |
| 259 MemoryService::track_code_cache_memory_usage(); | |
| 260 } | |
| 261 | |
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262 |
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263 //---------------------------------------------------------------------------------------------------- |
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264 // Implementation of AdapterBlob |
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265 |
| 1663 | 266 AdapterBlob::AdapterBlob(int size, CodeBuffer* cb) : |
| 267 BufferBlob("I2C/C2I adapters", size, cb) { | |
| 268 CodeCache::commit(this); | |
| 269 } | |
| 270 | |
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271 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) { |
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272 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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273 |
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274 AdapterBlob* blob = NULL; |
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275 unsigned int size = allocation_size(cb, sizeof(AdapterBlob)); |
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276 { |
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277 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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278 blob = new (size) AdapterBlob(size, cb); |
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279 } |
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280 // Track memory usage statistic after releasing CodeCache_lock |
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281 MemoryService::track_code_cache_memory_usage(); |
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282 |
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283 return blob; |
| 0 | 284 } |
| 285 | |
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286 |
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287 //---------------------------------------------------------------------------------------------------- |
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288 // Implementation of MethodHandlesAdapterBlob |
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289 |
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290 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) { |
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291 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock |
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292 |
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293 MethodHandlesAdapterBlob* blob = NULL; |
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294 unsigned int size = sizeof(MethodHandlesAdapterBlob); |
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295 // align the size to CodeEntryAlignment |
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296 size = align_code_offset(size); |
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297 size += round_to(buffer_size, oopSize); |
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298 { |
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299 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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300 blob = new (size) MethodHandlesAdapterBlob(size); |
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301 } |
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302 // Track memory usage statistic after releasing CodeCache_lock |
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303 MemoryService::track_code_cache_memory_usage(); |
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304 |
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305 return blob; |
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306 } |
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307 |
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308 |
| 0 | 309 //---------------------------------------------------------------------------------------------------- |
| 310 // Implementation of RuntimeStub | |
| 311 | |
| 312 RuntimeStub::RuntimeStub( | |
| 313 const char* name, | |
| 314 CodeBuffer* cb, | |
| 315 int size, | |
| 316 int frame_complete, | |
| 317 int frame_size, | |
| 318 OopMapSet* oop_maps, | |
| 319 bool caller_must_gc_arguments | |
| 320 ) | |
| 321 : CodeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps) | |
| 322 { | |
| 323 _caller_must_gc_arguments = caller_must_gc_arguments; | |
| 324 } | |
| 325 | |
| 326 | |
| 327 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name, | |
| 328 CodeBuffer* cb, | |
| 329 int frame_complete, | |
| 330 int frame_size, | |
| 331 OopMapSet* oop_maps, | |
| 332 bool caller_must_gc_arguments) | |
| 333 { | |
| 334 RuntimeStub* stub = NULL; | |
| 335 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 336 { | |
| 337 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 338 unsigned int size = allocation_size(cb, sizeof(RuntimeStub)); | |
| 339 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments); | |
| 340 } | |
| 341 | |
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342 trace_new_stub(stub, "RuntimeStub - ", stub_name); |
| 0 | 343 |
| 344 return stub; | |
| 345 } | |
| 346 | |
| 347 | |
| 348 void* RuntimeStub::operator new(size_t s, unsigned size) { | |
| 349 void* p = CodeCache::allocate(size); | |
| 350 if (!p) fatal("Initial size of CodeCache is too small"); | |
| 351 return p; | |
| 352 } | |
| 353 | |
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354 // operator new shared by all singletons: |
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355 void* SingletonBlob::operator new(size_t s, unsigned size) { |
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356 void* p = CodeCache::allocate(size); |
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357 if (!p) fatal("Initial size of CodeCache is too small"); |
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358 return p; |
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359 } |
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360 |
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361 |
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362 //---------------------------------------------------------------------------------------------------- |
| 0 | 363 // Implementation of DeoptimizationBlob |
| 364 | |
| 365 DeoptimizationBlob::DeoptimizationBlob( | |
| 366 CodeBuffer* cb, | |
| 367 int size, | |
| 368 OopMapSet* oop_maps, | |
| 369 int unpack_offset, | |
| 370 int unpack_with_exception_offset, | |
| 371 int unpack_with_reexecution_offset, | |
| 372 int frame_size | |
| 373 ) | |
| 374 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps) | |
| 375 { | |
| 376 _unpack_offset = unpack_offset; | |
| 377 _unpack_with_exception = unpack_with_exception_offset; | |
| 378 _unpack_with_reexecution = unpack_with_reexecution_offset; | |
| 379 #ifdef COMPILER1 | |
| 380 _unpack_with_exception_in_tls = -1; | |
| 381 #endif | |
| 382 } | |
| 383 | |
| 384 | |
| 385 DeoptimizationBlob* DeoptimizationBlob::create( | |
| 386 CodeBuffer* cb, | |
| 387 OopMapSet* oop_maps, | |
| 388 int unpack_offset, | |
| 389 int unpack_with_exception_offset, | |
| 390 int unpack_with_reexecution_offset, | |
| 391 int frame_size) | |
| 392 { | |
| 393 DeoptimizationBlob* blob = NULL; | |
| 394 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 395 { | |
| 396 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 397 unsigned int size = allocation_size(cb, sizeof(DeoptimizationBlob)); | |
| 398 blob = new (size) DeoptimizationBlob(cb, | |
| 399 size, | |
| 400 oop_maps, | |
| 401 unpack_offset, | |
| 402 unpack_with_exception_offset, | |
| 403 unpack_with_reexecution_offset, | |
| 404 frame_size); | |
| 405 } | |
| 406 | |
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407 trace_new_stub(blob, "DeoptimizationBlob"); |
| 0 | 408 |
| 409 return blob; | |
| 410 } | |
| 411 | |
| 412 | |
| 413 //---------------------------------------------------------------------------------------------------- | |
| 414 // Implementation of UncommonTrapBlob | |
| 415 | |
| 416 #ifdef COMPILER2 | |
| 417 UncommonTrapBlob::UncommonTrapBlob( | |
| 418 CodeBuffer* cb, | |
| 419 int size, | |
| 420 OopMapSet* oop_maps, | |
| 421 int frame_size | |
| 422 ) | |
| 423 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps) | |
| 424 {} | |
| 425 | |
| 426 | |
| 427 UncommonTrapBlob* UncommonTrapBlob::create( | |
| 428 CodeBuffer* cb, | |
| 429 OopMapSet* oop_maps, | |
| 430 int frame_size) | |
| 431 { | |
| 432 UncommonTrapBlob* blob = NULL; | |
| 433 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 434 { | |
| 435 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 436 unsigned int size = allocation_size(cb, sizeof(UncommonTrapBlob)); | |
| 437 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size); | |
| 438 } | |
| 439 | |
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440 trace_new_stub(blob, "UncommonTrapBlob"); |
| 0 | 441 |
| 442 return blob; | |
| 443 } | |
| 444 | |
| 445 | |
| 446 #endif // COMPILER2 | |
| 447 | |
| 448 | |
| 449 //---------------------------------------------------------------------------------------------------- | |
| 450 // Implementation of ExceptionBlob | |
| 451 | |
| 452 #ifdef COMPILER2 | |
| 453 ExceptionBlob::ExceptionBlob( | |
| 454 CodeBuffer* cb, | |
| 455 int size, | |
| 456 OopMapSet* oop_maps, | |
| 457 int frame_size | |
| 458 ) | |
| 459 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps) | |
| 460 {} | |
| 461 | |
| 462 | |
| 463 ExceptionBlob* ExceptionBlob::create( | |
| 464 CodeBuffer* cb, | |
| 465 OopMapSet* oop_maps, | |
| 466 int frame_size) | |
| 467 { | |
| 468 ExceptionBlob* blob = NULL; | |
| 469 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 470 { | |
| 471 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 472 unsigned int size = allocation_size(cb, sizeof(ExceptionBlob)); | |
| 473 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size); | |
| 474 } | |
| 475 | |
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476 trace_new_stub(blob, "ExceptionBlob"); |
| 0 | 477 |
| 478 return blob; | |
| 479 } | |
| 480 | |
| 481 | |
| 482 #endif // COMPILER2 | |
| 483 | |
| 484 | |
| 485 //---------------------------------------------------------------------------------------------------- | |
| 486 // Implementation of SafepointBlob | |
| 487 | |
| 488 SafepointBlob::SafepointBlob( | |
| 489 CodeBuffer* cb, | |
| 490 int size, | |
| 491 OopMapSet* oop_maps, | |
| 492 int frame_size | |
| 493 ) | |
| 494 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps) | |
| 495 {} | |
| 496 | |
| 497 | |
| 498 SafepointBlob* SafepointBlob::create( | |
| 499 CodeBuffer* cb, | |
| 500 OopMapSet* oop_maps, | |
| 501 int frame_size) | |
| 502 { | |
| 503 SafepointBlob* blob = NULL; | |
| 504 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock | |
| 505 { | |
| 506 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 507 unsigned int size = allocation_size(cb, sizeof(SafepointBlob)); | |
| 508 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size); | |
| 509 } | |
| 510 | |
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511 trace_new_stub(blob, "SafepointBlob"); |
| 0 | 512 |
| 513 return blob; | |
| 514 } | |
| 515 | |
| 516 | |
| 517 //---------------------------------------------------------------------------------------------------- | |
| 518 // Verification and printing | |
| 519 | |
| 520 void CodeBlob::verify() { | |
| 521 ShouldNotReachHere(); | |
| 522 } | |
| 523 | |
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524 void CodeBlob::print_on(outputStream* st) const { |
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525 st->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", this); |
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526 st->print_cr("Framesize: %d", _frame_size); |
| 0 | 527 } |
| 528 | |
| 529 void CodeBlob::print_value_on(outputStream* st) const { | |
| 530 st->print_cr("[CodeBlob]"); | |
| 531 } | |
| 532 | |
| 533 void BufferBlob::verify() { | |
| 534 // unimplemented | |
| 535 } | |
| 536 | |
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537 void BufferBlob::print_on(outputStream* st) const { |
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538 CodeBlob::print_on(st); |
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539 print_value_on(st); |
| 0 | 540 } |
| 541 | |
| 542 void BufferBlob::print_value_on(outputStream* st) const { | |
| 543 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", this, name()); | |
| 544 } | |
| 545 | |
| 546 void RuntimeStub::verify() { | |
| 547 // unimplemented | |
| 548 } | |
| 549 | |
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550 void RuntimeStub::print_on(outputStream* st) const { |
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551 CodeBlob::print_on(st); |
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552 st->print("Runtime Stub (" INTPTR_FORMAT "): ", this); |
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553 st->print_cr(name()); |
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554 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 555 } |
| 556 | |
| 557 void RuntimeStub::print_value_on(outputStream* st) const { | |
| 558 st->print("RuntimeStub (" INTPTR_FORMAT "): ", this); st->print(name()); | |
| 559 } | |
| 560 | |
| 561 void SingletonBlob::verify() { | |
| 562 // unimplemented | |
| 563 } | |
| 564 | |
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565 void SingletonBlob::print_on(outputStream* st) const { |
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566 CodeBlob::print_on(st); |
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567 st->print_cr(name()); |
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568 Disassembler::decode((CodeBlob*)this, st); |
| 0 | 569 } |
| 570 | |
| 571 void SingletonBlob::print_value_on(outputStream* st) const { | |
| 572 st->print_cr(name()); | |
| 573 } | |
| 574 | |
| 575 void DeoptimizationBlob::print_value_on(outputStream* st) const { | |
| 576 st->print_cr("Deoptimization (frame not available)"); | |
| 577 } |