Mercurial > hg > truffle
annotate src/share/vm/code/codeBlob.cpp @ 2100:b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
Summary: Track allocated bytes in Thread's, update on TLAB retirement and direct allocation in Eden and tenured, add JNI methods for ThreadMXBean.
Reviewed-by: coleenp, kvn, dholmes, ysr
author | phh |
---|---|
date | Fri, 07 Jan 2011 10:42:32 -0500 |
parents | f95d63e2154a |
children | b92c45f2bc75 |
rev | line source |
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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 } |