1 /*
2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26
27 #include "code/codeCache.hpp"
28 #include "memory/metadataFactory.hpp"
29 #include "memory/universe.hpp"
30 #include "oops/oop.inline.hpp"
31
32 #include "classfile/stringTable.hpp"
33 #include "classfile/classLoaderData.hpp"
34
35 #include "prims/whitebox.hpp"
36 #include "prims/wbtestmethods/parserTests.hpp"
37
38 #include "runtime/thread.hpp"
39 #include "runtime/arguments.hpp"
40 #include "runtime/interfaceSupport.hpp"
41 #include "runtime/os.hpp"
42 #include "runtime/vm_version.hpp"
43
44 #include "utilities/array.hpp"
45 #include "utilities/debug.hpp"
46 #include "utilities/macros.hpp"
47 #include "utilities/exceptions.hpp"
48
49 #if INCLUDE_ALL_GCS
50 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
51 #include "gc_implementation/g1/concurrentMark.hpp"
52 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
53 #include "gc_implementation/g1/heapRegionRemSet.hpp"
54 #endif // INCLUDE_ALL_GCS
55
56 #if INCLUDE_NMT
57 #include "services/mallocSiteTable.hpp"
58 #include "services/memTracker.hpp"
59 #include "utilities/nativeCallStack.hpp"
60 #endif // INCLUDE_NMT
61
62 #include "compiler/compileBroker.hpp"
63 #include "runtime/compilationPolicy.hpp"
64
65 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
66
67 #define SIZE_T_MAX_VALUE ((size_t) -1)
68
69 bool WhiteBox::_used = false;
70
71 WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj))
72 return (jlong)(void*)JNIHandles::resolve(obj);
73 WB_END
74
75 WB_ENTRY(jint, WB_GetHeapOopSize(JNIEnv* env, jobject o))
76 return heapOopSize;
77 WB_END
78
79
80 class WBIsKlassAliveClosure : public KlassClosure {
81 Symbol* _name;
82 bool _found;
83 public:
84 WBIsKlassAliveClosure(Symbol* name) : _name(name), _found(false) {}
85
86 void do_klass(Klass* k) {
87 if (_found) return;
88 Symbol* ksym = k->name();
89 if (ksym->fast_compare(_name) == 0) {
90 _found = true;
91 }
92 }
93
94 bool found() const {
95 return _found;
96 }
97 };
98
99 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name))
100 Handle h_name = JNIHandles::resolve(name);
101 if (h_name.is_null()) return false;
102 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false);
103 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return
104
105 WBIsKlassAliveClosure closure(sym);
106 ClassLoaderDataGraph::classes_do(&closure);
107
108 return closure.found();
109 WB_END
110
111 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) {
112 return (jlong)Arguments::max_heap_for_compressed_oops();
113 }
114 WB_END
115
116 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) {
117 CollectorPolicy * p = Universe::heap()->collector_policy();
118 gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap "
119 SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Space alignment "SIZE_FORMAT" Heap alignment "SIZE_FORMAT,
120 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(),
121 p->space_alignment(), p->heap_alignment());
122 }
123 WB_END
124
125 #ifndef PRODUCT
126 // Forward declaration
127 void TestReservedSpace_test();
128 void TestReserveMemorySpecial_test();
129 void TestVirtualSpace_test();
130 void TestMetaspaceAux_test();
131 #endif
132
133 WB_ENTRY(void, WB_RunMemoryUnitTests(JNIEnv* env, jobject o))
134 #ifndef PRODUCT
135 TestReservedSpace_test();
136 TestReserveMemorySpecial_test();
137 TestVirtualSpace_test();
138 TestMetaspaceAux_test();
139 #endif
140 WB_END
141
142 WB_ENTRY(void, WB_ReadFromNoaccessArea(JNIEnv* env, jobject o))
143 size_t granularity = os::vm_allocation_granularity();
144 ReservedHeapSpace rhs(100 * granularity, granularity, false, NULL);
145 VirtualSpace vs;
146 vs.initialize(rhs, 50 * granularity);
147
148 //Check if constraints are complied
149 if (!( UseCompressedOops && rhs.base() != NULL &&
150 Universe::narrow_oop_base() != NULL &&
151 Universe::narrow_oop_use_implicit_null_checks() )) {
152 tty->print_cr("WB_ReadFromNoaccessArea method is useless:\n "
153 "\tUseCompressedOops is %d\n"
154 "\trhs.base() is "PTR_FORMAT"\n"
155 "\tUniverse::narrow_oop_base() is "PTR_FORMAT"\n"
156 "\tUniverse::narrow_oop_use_implicit_null_checks() is %d",
157 UseCompressedOops,
158 rhs.base(),
159 Universe::narrow_oop_base(),
160 Universe::narrow_oop_use_implicit_null_checks());
161 return;
162 }
163 tty->print_cr("Reading from no access area... ");
164 tty->print_cr("*(vs.low_boundary() - rhs.noaccess_prefix() / 2 ) = %c",
165 *(vs.low_boundary() - rhs.noaccess_prefix() / 2 ));
166 WB_END
167
168 static jint wb_stress_virtual_space_resize(size_t reserved_space_size,
169 size_t magnitude, size_t iterations) {
170 size_t granularity = os::vm_allocation_granularity();
171 ReservedHeapSpace rhs(reserved_space_size * granularity, granularity, false, NULL);
172 VirtualSpace vs;
173 if (!vs.initialize(rhs, 0)) {
174 tty->print_cr("Failed to initialize VirtualSpace. Can't proceed.");
175 return 3;
176 }
177
178 long seed = os::random();
179 tty->print_cr("Random seed is %ld", seed);
180 os::init_random(seed);
181
182 for (size_t i = 0; i < iterations; i++) {
183
184 // Whether we will shrink or grow
185 bool shrink = os::random() % 2L == 0;
186
187 // Get random delta to resize virtual space
188 size_t delta = (size_t)os::random() % magnitude;
189
190 // If we are about to shrink virtual space below zero, then expand instead
191 if (shrink && vs.committed_size() < delta) {
192 shrink = false;
193 }
194
195 // Resizing by delta
196 if (shrink) {
197 vs.shrink_by(delta);
198 } else {
199 // If expanding fails expand_by will silently return false
200 vs.expand_by(delta, true);
201 }
202 }
203 return 0;
204 }
205
206 WB_ENTRY(jint, WB_StressVirtualSpaceResize(JNIEnv* env, jobject o,
207 jlong reserved_space_size, jlong magnitude, jlong iterations))
208 tty->print_cr("reservedSpaceSize="JLONG_FORMAT", magnitude="JLONG_FORMAT", "
209 "iterations="JLONG_FORMAT"\n", reserved_space_size, magnitude,
210 iterations);
211 if (reserved_space_size < 0 || magnitude < 0 || iterations < 0) {
212 tty->print_cr("One of variables printed above is negative. Can't proceed.\n");
213 return 1;
214 }
215
216 // sizeof(size_t) depends on whether OS is 32bit or 64bit. sizeof(jlong) is
217 // always 8 byte. That's why we should avoid overflow in case of 32bit platform.
218 if (sizeof(size_t) < sizeof(jlong)) {
219 jlong size_t_max_value = (jlong) SIZE_T_MAX_VALUE;
220 if (reserved_space_size > size_t_max_value || magnitude > size_t_max_value
221 || iterations > size_t_max_value) {
222 tty->print_cr("One of variables printed above overflows size_t. Can't proceed.\n");
223 return 2;
224 }
225 }
226
227 return wb_stress_virtual_space_resize((size_t) reserved_space_size,
228 (size_t) magnitude, (size_t) iterations);
229 WB_END
230
231 WB_ENTRY(jboolean, WB_isObjectInOldGen(JNIEnv* env, jobject o, jobject obj))
232 oop p = JNIHandles::resolve(obj);
233 #if INCLUDE_ALL_GCS
234 if (UseG1GC) {
235 G1CollectedHeap* g1 = G1CollectedHeap::heap();
236 const HeapRegion* hr = g1->heap_region_containing(p);
237 if (hr == NULL) {
238 return false;
239 }
240 return !(hr->is_young());
241 } else if (UseParallelGC) {
242 ParallelScavengeHeap* psh = ParallelScavengeHeap::heap();
243 return !psh->is_in_young(p);
244 }
245 #endif // INCLUDE_ALL_GCS
246 GenCollectedHeap* gch = GenCollectedHeap::heap();
247 return !gch->is_in_young(p);
248 WB_END
249
250 WB_ENTRY(jlong, WB_GetObjectSize(JNIEnv* env, jobject o, jobject obj))
251 oop p = JNIHandles::resolve(obj);
252 return p->size() * HeapWordSize;
253 WB_END
254
255 #if INCLUDE_ALL_GCS
256 WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj))
257 G1CollectedHeap* g1 = G1CollectedHeap::heap();
258 oop result = JNIHandles::resolve(obj);
259 const HeapRegion* hr = g1->heap_region_containing(result);
260 return hr->is_humongous();
261 WB_END
262
263 WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o))
264 G1CollectedHeap* g1 = G1CollectedHeap::heap();
265 size_t nr = g1->num_free_regions();
266 return (jlong)nr;
267 WB_END
268
269 WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o))
270 G1CollectedHeap* g1 = G1CollectedHeap::heap();
271 ConcurrentMark* cm = g1->concurrent_mark();
272 return cm->concurrent_marking_in_progress();
273 WB_END
274
275 WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o))
276 return (jint)HeapRegion::GrainBytes;
277 WB_END
278 #endif // INCLUDE_ALL_GCS
279
280 #if INCLUDE_NMT
281 // Alloc memory using the test memory type so that we can use that to see if
282 // NMT picks it up correctly
283 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size))
284 jlong addr = 0;
285 addr = (jlong)(uintptr_t)os::malloc(size, mtTest);
286 return addr;
287 WB_END
288
289 // Alloc memory with pseudo call stack. The test can create psudo malloc
290 // allocation site to stress the malloc tracking.
291 WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack))
292 address pc = (address)(size_t)pseudo_stack;
293 NativeCallStack stack(&pc, 1);
294 return (jlong)(uintptr_t)os::malloc(size, mtTest, stack);
295 WB_END
296
297 // Free the memory allocated by NMTAllocTest
298 WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem))
299 os::free((void*)(uintptr_t)mem);
300 WB_END
301
302 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size))
303 jlong addr = 0;
304
305 addr = (jlong)(uintptr_t)os::reserve_memory(size);
306 MemTracker::record_virtual_memory_type((address)addr, mtTest);
307
308 return addr;
309 WB_END
310
311
312 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
313 os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem);
314 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest);
315 WB_END
316
317 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
318 os::uncommit_memory((char *)(uintptr_t)addr, size);
319 WB_END
320
321 WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
322 os::release_memory((char *)(uintptr_t)addr, size);
323 WB_END
324
325 WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env))
326 return MemTracker::tracking_level() == NMT_detail;
327 WB_END
328
329 WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env))
330 // Test that we can downgrade NMT levels but not upgrade them.
331 if (MemTracker::tracking_level() == NMT_off) {
332 MemTracker::transition_to(NMT_off);
333 return MemTracker::tracking_level() == NMT_off;
334 } else {
335 assert(MemTracker::tracking_level() == NMT_detail, "Should start out as detail tracking");
336 MemTracker::transition_to(NMT_summary);
337 assert(MemTracker::tracking_level() == NMT_summary, "Should be summary now");
338
339 // Can't go to detail once NMT is set to summary.
340 MemTracker::transition_to(NMT_detail);
341 assert(MemTracker::tracking_level() == NMT_summary, "Should still be summary now");
342
343 // Shutdown sets tracking level to minimal.
344 MemTracker::shutdown();
345 assert(MemTracker::tracking_level() == NMT_minimal, "Should be minimal now");
346
347 // Once the tracking level is minimal, we cannot increase to summary.
348 // The code ignores this request instead of asserting because if the malloc site
349 // table overflows in another thread, it tries to change the code to summary.
350 MemTracker::transition_to(NMT_summary);
351 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now");
352
353 // Really can never go up to detail, verify that the code would never do this.
354 MemTracker::transition_to(NMT_detail);
355 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now");
356 return MemTracker::tracking_level() == NMT_minimal;
357 }
358 WB_END
359
360 WB_ENTRY(jint, WB_NMTGetHashSize(JNIEnv* env, jobject o))
361 int hash_size = MallocSiteTable::hash_buckets();
362 assert(hash_size > 0, "NMT hash_size should be > 0");
363 return (jint)hash_size;
364 WB_END
365 #endif // INCLUDE_NMT
366
367 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) {
368 assert(method != NULL, "method should not be null");
369 ThreadToNativeFromVM ttn(thread);
370 return env->FromReflectedMethod(method);
371 }
372
373 WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o))
374 MutexLockerEx mu(Compile_lock);
375 CodeCache::mark_all_nmethods_for_deoptimization();
376 VM_Deoptimize op;
377 VMThread::execute(&op);
378 WB_END
379
380 WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
381 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
382 int result = 0;
383 CHECK_JNI_EXCEPTION_(env, result);
384 MutexLockerEx mu(Compile_lock);
385 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
386 if (is_osr) {
387 result += mh->mark_osr_nmethods();
388 } else if (mh->code() != NULL) {
389 mh->code()->mark_for_deoptimization();
390 ++result;
391 }
392 result += CodeCache::mark_for_deoptimization(mh());
393 if (result > 0) {
394 VM_Deoptimize op;
395 VMThread::execute(&op);
396 }
397 return result;
398 WB_END
399
400 WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
401 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
402 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
403 MutexLockerEx mu(Compile_lock);
404 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
405 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code();
406 if (code == NULL) {
407 return JNI_FALSE;
408 }
409 return (code->is_alive() && !code->is_marked_for_deoptimization());
410 WB_END
411
412 WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr))
413 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
414 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
415 MutexLockerEx mu(Compile_lock);
416 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
417 if (is_osr) {
418 return CompilationPolicy::can_be_osr_compiled(mh, comp_level);
419 } else {
420 return CompilationPolicy::can_be_compiled(mh, comp_level);
421 }
422 WB_END
423
424 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method))
425 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
426 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
427 MutexLockerEx mu(Compile_lock);
428 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
429 return mh->queued_for_compilation();
430 WB_END
431
432 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
433 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
434 CHECK_JNI_EXCEPTION_(env, CompLevel_none);
435 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
436 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code();
437 return (code != NULL ? code->comp_level() : CompLevel_none);
438 WB_END
439
440 WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr))
441 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
442 CHECK_JNI_EXCEPTION(env);
443 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
444 if (is_osr) {
445 mh->set_not_osr_compilable(comp_level, true /* report */, "WhiteBox");
446 } else {
447 mh->set_not_compilable(comp_level, true /* report */, "WhiteBox");
448 }
449 WB_END
450
451 WB_ENTRY(jint, WB_GetMethodEntryBci(JNIEnv* env, jobject o, jobject method))
452 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
453 CHECK_JNI_EXCEPTION_(env, InvocationEntryBci);
454 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
455 nmethod* code = mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false);
456 return (code != NULL && code->is_osr_method() ? code->osr_entry_bci() : InvocationEntryBci);
457 WB_END
458
459 WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value))
460 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
461 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
462 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
463 bool result = mh->dont_inline();
464 mh->set_dont_inline(value == JNI_TRUE);
465 return result;
466 WB_END
467
468 WB_ENTRY(jint, WB_GetCompileQueueSize(JNIEnv* env, jobject o, jint comp_level))
469 if (comp_level == CompLevel_any) {
470 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ +
471 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */;
472 } else {
473 return CompileBroker::queue_size(comp_level);
474 }
475 WB_END
476
477 WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value))
478 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
479 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
480 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
481 bool result = mh->force_inline();
482 mh->set_force_inline(value == JNI_TRUE);
483 return result;
484 WB_END
485
486 WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level, jint bci))
487 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
488 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
489 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
490 nmethod* nm = CompileBroker::compile_method(mh, bci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD);
491 MutexLockerEx mu(Compile_lock);
492 return (mh->queued_for_compilation() || nm != NULL);
493 WB_END
494
495 class VM_WhiteBoxOperation : public VM_Operation {
496 public:
497 VM_WhiteBoxOperation() { }
498 VMOp_Type type() const { return VMOp_WhiteBoxOperation; }
499 bool allow_nested_vm_operations() const { return true; }
500 };
501
502 class AlwaysFalseClosure : public BoolObjectClosure {
503 public:
504 bool do_object_b(oop p) { return false; }
505 };
506
507 static AlwaysFalseClosure always_false;
508
509 WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method))
510 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
511 CHECK_JNI_EXCEPTION(env);
512 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
513 MutexLockerEx mu(Compile_lock);
514 MethodData* mdo = mh->method_data();
515 MethodCounters* mcs = mh->method_counters();
516
517 if (mdo != NULL) {
518 mdo->init();
519 ResourceMark rm;
520 int arg_count = mdo->method()->size_of_parameters();
521 for (int i = 0; i < arg_count; i++) {
522 mdo->set_arg_modified(i, 0);
523 }
524 MutexLockerEx mu(mdo->extra_data_lock());
525 mdo->clean_method_data(&always_false);
526 }
527
528 mh->clear_not_c1_compilable();
529 mh->clear_not_c2_compilable();
530 mh->clear_not_c2_osr_compilable();
531 NOT_PRODUCT(mh->set_compiled_invocation_count(0));
532 if (mcs != NULL) {
533 mcs->backedge_counter()->init();
534 mcs->invocation_counter()->init();
535 mcs->set_interpreter_invocation_count(0);
536 mcs->set_interpreter_throwout_count(0);
537
538 #ifdef TIERED
539 mcs->set_rate(0.0F);
540 mh->set_prev_event_count(0);
541 mh->set_prev_time(0);
542 #endif
543 }
544 WB_END
545
546 template <typename T>
547 static bool GetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAt)(const char*, T*, bool, bool)) {
548 if (name == NULL) {
549 return false;
550 }
551 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
552 const char* flag_name = env->GetStringUTFChars(name, NULL);
553 bool result = (*TAt)(flag_name, value, true, true);
554 env->ReleaseStringUTFChars(name, flag_name);
555 return result;
556 }
557
558 template <typename T>
559 static bool SetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAtPut)(const char*, T*, Flag::Flags)) {
560 if (name == NULL) {
561 return false;
562 }
563 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
564 const char* flag_name = env->GetStringUTFChars(name, NULL);
565 bool result = (*TAtPut)(flag_name, value, Flag::INTERNAL);
566 env->ReleaseStringUTFChars(name, flag_name);
567 return result;
568 }
569
570 template <typename T>
571 static jobject box(JavaThread* thread, JNIEnv* env, Symbol* name, Symbol* sig, T value) {
572 ResourceMark rm(thread);
573 jclass clazz = env->FindClass(name->as_C_string());
574 CHECK_JNI_EXCEPTION_(env, NULL);
575 jmethodID methodID = env->GetStaticMethodID(clazz,
576 vmSymbols::valueOf_name()->as_C_string(),
577 sig->as_C_string());
578 CHECK_JNI_EXCEPTION_(env, NULL);
579 jobject result = env->CallStaticObjectMethod(clazz, methodID, value);
580 CHECK_JNI_EXCEPTION_(env, NULL);
581 return result;
582 }
583
584 static jobject booleanBox(JavaThread* thread, JNIEnv* env, jboolean value) {
585 return box(thread, env, vmSymbols::java_lang_Boolean(), vmSymbols::Boolean_valueOf_signature(), value);
586 }
587 static jobject integerBox(JavaThread* thread, JNIEnv* env, jint value) {
588 return box(thread, env, vmSymbols::java_lang_Integer(), vmSymbols::Integer_valueOf_signature(), value);
589 }
590 static jobject longBox(JavaThread* thread, JNIEnv* env, jlong value) {
591 return box(thread, env, vmSymbols::java_lang_Long(), vmSymbols::Long_valueOf_signature(), value);
592 }
593 /* static jobject floatBox(JavaThread* thread, JNIEnv* env, jfloat value) {
594 return box(thread, env, vmSymbols::java_lang_Float(), vmSymbols::Float_valueOf_signature(), value);
595 }*/
596 static jobject doubleBox(JavaThread* thread, JNIEnv* env, jdouble value) {
597 return box(thread, env, vmSymbols::java_lang_Double(), vmSymbols::Double_valueOf_signature(), value);
598 }
599
600 static Flag* getVMFlag(JavaThread* thread, JNIEnv* env, jstring name) {
601 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
602 const char* flag_name = env->GetStringUTFChars(name, NULL);
603 Flag* result = Flag::find_flag(flag_name, strlen(flag_name), true, true);
604 env->ReleaseStringUTFChars(name, flag_name);
605 return result;
606 }
607
608 WB_ENTRY(jboolean, WB_IsConstantVMFlag(JNIEnv* env, jobject o, jstring name))
609 Flag* flag = getVMFlag(thread, env, name);
610 return (flag != NULL) && flag->is_constant_in_binary();
611 WB_END
612
613 WB_ENTRY(jboolean, WB_IsLockedVMFlag(JNIEnv* env, jobject o, jstring name))
614 Flag* flag = getVMFlag(thread, env, name);
615 return (flag != NULL) && !(flag->is_unlocked() || flag->is_unlocker());
616 WB_END
617
618 WB_ENTRY(jobject, WB_GetBooleanVMFlag(JNIEnv* env, jobject o, jstring name))
619 bool result;
620 if (GetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAt)) {
621 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
622 return booleanBox(thread, env, result);
623 }
624 return NULL;
625 WB_END
626
627 WB_ENTRY(jobject, WB_GetIntxVMFlag(JNIEnv* env, jobject o, jstring name))
628 intx result;
629 if (GetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAt)) {
630 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
631 return longBox(thread, env, result);
632 }
633 return NULL;
634 WB_END
635
636 WB_ENTRY(jobject, WB_GetUintxVMFlag(JNIEnv* env, jobject o, jstring name))
637 uintx result;
638 if (GetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAt)) {
639 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
640 return longBox(thread, env, result);
641 }
642 return NULL;
643 WB_END
644
645 WB_ENTRY(jobject, WB_GetUint64VMFlag(JNIEnv* env, jobject o, jstring name))
646 uint64_t result;
647 if (GetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAt)) {
648 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
649 return longBox(thread, env, result);
650 }
651 return NULL;
652 WB_END
653
654 WB_ENTRY(jobject, WB_GetSizeTVMFlag(JNIEnv* env, jobject o, jstring name))
655 uintx result;
656 if (GetVMFlag <size_t> (thread, env, name, &result, &CommandLineFlags::size_tAt)) {
657 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
658 return longBox(thread, env, result);
659 }
660 return NULL;
661 WB_END
662
663 WB_ENTRY(jobject, WB_GetDoubleVMFlag(JNIEnv* env, jobject o, jstring name))
664 double result;
665 if (GetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAt)) {
666 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
667 return doubleBox(thread, env, result);
668 }
669 return NULL;
670 WB_END
671
672 WB_ENTRY(jstring, WB_GetStringVMFlag(JNIEnv* env, jobject o, jstring name))
673 ccstr ccstrResult;
674 if (GetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAt)) {
675 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
676 jstring result = env->NewStringUTF(ccstrResult);
677 CHECK_JNI_EXCEPTION_(env, NULL);
678 return result;
679 }
680 return NULL;
681 WB_END
682
683 WB_ENTRY(void, WB_SetBooleanVMFlag(JNIEnv* env, jobject o, jstring name, jboolean value))
684 bool result = value == JNI_TRUE ? true : false;
685 SetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAtPut);
686 WB_END
687
688 WB_ENTRY(void, WB_SetIntxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value))
689 intx result = value;
690 SetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAtPut);
691 WB_END
692
693 WB_ENTRY(void, WB_SetUintxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value))
694 uintx result = value;
695 SetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAtPut);
696 WB_END
697
698 WB_ENTRY(void, WB_SetUint64VMFlag(JNIEnv* env, jobject o, jstring name, jlong value))
699 uint64_t result = value;
700 SetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAtPut);
701 WB_END
702
703 WB_ENTRY(void, WB_SetSizeTVMFlag(JNIEnv* env, jobject o, jstring name, jlong value))
704 size_t result = value;
705 SetVMFlag <size_t> (thread, env, name, &result, &CommandLineFlags::size_tAtPut);
706 WB_END
707
708 WB_ENTRY(void, WB_SetDoubleVMFlag(JNIEnv* env, jobject o, jstring name, jdouble value))
709 double result = value;
710 SetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAtPut);
711 WB_END
712
713 WB_ENTRY(void, WB_SetStringVMFlag(JNIEnv* env, jobject o, jstring name, jstring value))
714 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
715 const char* ccstrValue = (value == NULL) ? NULL : env->GetStringUTFChars(value, NULL);
716 ccstr ccstrResult = ccstrValue;
717 bool needFree;
718 {
719 ThreadInVMfromNative ttvfn(thread); // back to VM
720 needFree = SetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAtPut);
721 }
722 if (value != NULL) {
723 env->ReleaseStringUTFChars(value, ccstrValue);
724 }
725 if (needFree) {
726 FREE_C_HEAP_ARRAY(char, ccstrResult);
727 }
728 WB_END
729
730
731 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString))
732 ResourceMark rm(THREAD);
733 int len;
734 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len, CHECK_false);
735 return (StringTable::lookup(name, len) != NULL);
736 WB_END
737
738 WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o))
739 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true);
740 Universe::heap()->collect(GCCause::_last_ditch_collection);
741 #if INCLUDE_ALL_GCS
742 if (UseG1GC) {
743 // Needs to be cleared explicitly for G1
744 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(false);
745 }
746 #endif // INCLUDE_ALL_GCS
747 WB_END
748
749 WB_ENTRY(void, WB_YoungGC(JNIEnv* env, jobject o))
750 Universe::heap()->collect(GCCause::_wb_young_gc);
751 WB_END
752
753 WB_ENTRY(void, WB_ReadReservedMemory(JNIEnv* env, jobject o))
754 // static+volatile in order to force the read to happen
755 // (not be eliminated by the compiler)
756 static char c;
757 static volatile char* p;
758
759 p = os::reserve_memory(os::vm_allocation_granularity(), NULL, 0);
760 if (p == NULL) {
761 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Failed to reserve memory");
762 }
763
764 c = *p;
765 WB_END
766
767 WB_ENTRY(jstring, WB_GetCPUFeatures(JNIEnv* env, jobject o))
768 const char* cpu_features = VM_Version::cpu_features();
769 ThreadToNativeFromVM ttn(thread);
770 jstring features_string = env->NewStringUTF(cpu_features);
771
772 CHECK_JNI_EXCEPTION_(env, NULL);
773
774 return features_string;
775 WB_END
776
777
778 WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
779 ResourceMark rm(THREAD);
780 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
781 CHECK_JNI_EXCEPTION_(env, NULL);
782 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
783 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code();
784 jobjectArray result = NULL;
785 if (code == NULL) {
786 return result;
787 }
788 int insts_size = code->insts_size();
789
790 ThreadToNativeFromVM ttn(thread);
791 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string());
792 CHECK_JNI_EXCEPTION_(env, NULL);
793 result = env->NewObjectArray(3, clazz, NULL);
794 if (result == NULL) {
795 return result;
796 }
797
798 jobject level = integerBox(thread, env, code->comp_level());
799 CHECK_JNI_EXCEPTION_(env, NULL);
800 env->SetObjectArrayElement(result, 0, level);
801
802 jbyteArray insts = env->NewByteArray(insts_size);
803 CHECK_JNI_EXCEPTION_(env, NULL);
804 env->SetByteArrayRegion(insts, 0, insts_size, (jbyte*) code->insts_begin());
805 env->SetObjectArrayElement(result, 1, insts);
806
807 jobject id = integerBox(thread, env, code->compile_id());
808 CHECK_JNI_EXCEPTION_(env, NULL);
809 env->SetObjectArrayElement(result, 2, id);
810
811 return result;
812 WB_END
813
814 WB_ENTRY(jlong, WB_GetThreadStackSize(JNIEnv* env, jobject o))
815 return (jlong) Thread::current()->stack_size();
816 WB_END
817
818 WB_ENTRY(jlong, WB_GetThreadRemainingStackSize(JNIEnv* env, jobject o))
819 JavaThread* t = JavaThread::current();
820 return (jlong) t->stack_available(os::current_stack_pointer()) - (jlong) StackShadowPages * os::vm_page_size();
821 WB_END
822
823 int WhiteBox::array_bytes_to_length(size_t bytes) {
824 return Array<u1>::bytes_to_length(bytes);
825 }
826
827 WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size))
828 if (size < 0) {
829 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
830 err_msg("WB_AllocateMetaspace: size is negative: " JLONG_FORMAT, size));
831 }
832
833 oop class_loader_oop = JNIHandles::resolve(class_loader);
834 ClassLoaderData* cld = class_loader_oop != NULL
835 ? java_lang_ClassLoader::loader_data(class_loader_oop)
836 : ClassLoaderData::the_null_class_loader_data();
837
838 void* metadata = MetadataFactory::new_writeable_array<u1>(cld, WhiteBox::array_bytes_to_length((size_t)size), thread);
839
840 return (jlong)(uintptr_t)metadata;
841 WB_END
842
843 WB_ENTRY(void, WB_FreeMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong addr, jlong size))
844 oop class_loader_oop = JNIHandles::resolve(class_loader);
845 ClassLoaderData* cld = class_loader_oop != NULL
846 ? java_lang_ClassLoader::loader_data(class_loader_oop)
847 : ClassLoaderData::the_null_class_loader_data();
848
849 MetadataFactory::free_array(cld, (Array<u1>*)(uintptr_t)addr);
850 WB_END
851
852 WB_ENTRY(jlong, WB_IncMetaspaceCapacityUntilGC(JNIEnv* env, jobject wb, jlong inc))
853 if (inc < 0) {
854 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
855 err_msg("WB_IncMetaspaceCapacityUntilGC: inc is negative: " JLONG_FORMAT, inc));
856 }
857
858 jlong max_size_t = (jlong) ((size_t) -1);
859 if (inc > max_size_t) {
860 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
861 err_msg("WB_IncMetaspaceCapacityUntilGC: inc does not fit in size_t: " JLONG_FORMAT, inc));
862 }
863
864 size_t new_cap_until_GC = 0;
865 size_t aligned_inc = align_size_down((size_t) inc, Metaspace::commit_alignment());
866 bool success = MetaspaceGC::inc_capacity_until_GC(aligned_inc, &new_cap_until_GC);
867 if (!success) {
868 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(),
869 "WB_IncMetaspaceCapacityUntilGC: could not increase capacity until GC "
870 "due to contention with another thread");
871 }
872 return (jlong) new_cap_until_GC;
873 WB_END
874
875 WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb))
876 return (jlong) MetaspaceGC::capacity_until_GC();
877 WB_END
878
879 //Some convenience methods to deal with objects from java
880 int WhiteBox::offset_for_field(const char* field_name, oop object,
881 Symbol* signature_symbol) {
882 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid");
883 Thread* THREAD = Thread::current();
884
885 //Get the class of our object
886 Klass* arg_klass = object->klass();
887 //Turn it into an instance-klass
888 InstanceKlass* ik = InstanceKlass::cast(arg_klass);
889
890 //Create symbols to look for in the class
891 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name),
892 THREAD);
893
894 //To be filled in with an offset of the field we're looking for
895 fieldDescriptor fd;
896
897 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd);
898 if (res == NULL) {
899 tty->print_cr("Invalid layout of %s at %s", ik->external_name(),
900 name_symbol->as_C_string());
901 fatal("Invalid layout of preloaded class");
902 }
903
904 //fetch the field at the offset we've found
905 int dest_offset = fd.offset();
906
907 return dest_offset;
908 }
909
910
911 const char* WhiteBox::lookup_jstring(const char* field_name, oop object) {
912 int offset = offset_for_field(field_name, object,
913 vmSymbols::string_signature());
914 oop string = object->obj_field(offset);
915 if (string == NULL) {
916 return NULL;
917 }
918 const char* ret = java_lang_String::as_utf8_string(string);
919 return ret;
920 }
921
922 bool WhiteBox::lookup_bool(const char* field_name, oop object) {
923 int offset =
924 offset_for_field(field_name, object, vmSymbols::bool_signature());
925 bool ret = (object->bool_field(offset) == JNI_TRUE);
926 return ret;
927 }
928
929 void WhiteBox::register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread, JNINativeMethod* method_array, int method_count) {
930 ResourceMark rm;
931 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
932
933 // one by one registration natives for exception catching
934 jclass no_such_method_error_klass = env->FindClass(vmSymbols::java_lang_NoSuchMethodError()->as_C_string());
935 CHECK_JNI_EXCEPTION(env);
936 for (int i = 0, n = method_count; i < n; ++i) {
937 // Skip dummy entries
938 if (method_array[i].fnPtr == NULL) continue;
939 if (env->RegisterNatives(wbclass, &method_array[i], 1) != 0) {
940 jthrowable throwable_obj = env->ExceptionOccurred();
941 if (throwable_obj != NULL) {
942 env->ExceptionClear();
943 if (env->IsInstanceOf(throwable_obj, no_such_method_error_klass)) {
944 // NoSuchMethodError is thrown when a method can't be found or a method is not native.
945 // Ignoring the exception since it is not preventing use of other WhiteBox methods.
946 tty->print_cr("Warning: 'NoSuchMethodError' on register of sun.hotspot.WhiteBox::%s%s",
947 method_array[i].name, method_array[i].signature);
948 }
949 } else {
950 // Registration failed unexpectedly.
951 tty->print_cr("Warning: unexpected error on register of sun.hotspot.WhiteBox::%s%s. All methods will be unregistered",
952 method_array[i].name, method_array[i].signature);
953 env->UnregisterNatives(wbclass);
954 break;
955 }
956 }
957 }
958 }
959
960 #define CC (char*)
961
962 static JNINativeMethod methods[] = {
963 {CC"getObjectAddress", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectAddress },
964 {CC"getObjectSize", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectSize },
965 {CC"isObjectInOldGen", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen },
966 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize },
967 {CC"isClassAlive0", CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive },
968 {CC"parseCommandLine",
969 CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;",
970 (void*) &WB_ParseCommandLine
971 },
972 {CC"getCompressedOopsMaxHeapSize", CC"()J",
973 (void*)&WB_GetCompressedOopsMaxHeapSize},
974 {CC"printHeapSizes", CC"()V", (void*)&WB_PrintHeapSizes },
975 {CC"runMemoryUnitTests", CC"()V", (void*)&WB_RunMemoryUnitTests},
976 {CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea},
977 {CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize},
978 #if INCLUDE_ALL_GCS
979 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark},
980 {CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous },
981 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions },
982 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize },
983 #endif // INCLUDE_ALL_GCS
984 #if INCLUDE_NMT
985 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc },
986 {CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack},
987 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree },
988 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory },
989 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory },
990 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory },
991 {CC"NMTReleaseMemory", CC"(JJ)V", (void*)&WB_NMTReleaseMemory },
992 {CC"NMTIsDetailSupported",CC"()Z", (void*)&WB_NMTIsDetailSupported},
993 {CC"NMTChangeTrackingLevel", CC"()Z", (void*)&WB_NMTChangeTrackingLevel},
994 {CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize },
995 #endif // INCLUDE_NMT
996 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll },
997 {CC"deoptimizeMethod", CC"(Ljava/lang/reflect/Executable;Z)I",
998 (void*)&WB_DeoptimizeMethod },
999 {CC"isMethodCompiled", CC"(Ljava/lang/reflect/Executable;Z)Z",
1000 (void*)&WB_IsMethodCompiled },
1001 {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Executable;IZ)Z",
1002 (void*)&WB_IsMethodCompilable},
1003 {CC"isMethodQueuedForCompilation",
1004 CC"(Ljava/lang/reflect/Executable;)Z", (void*)&WB_IsMethodQueuedForCompilation},
1005 {CC"makeMethodNotCompilable",
1006 CC"(Ljava/lang/reflect/Executable;IZ)V", (void*)&WB_MakeMethodNotCompilable},
1007 {CC"testSetDontInlineMethod",
1008 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetDontInlineMethod},
1009 {CC"getMethodCompilationLevel",
1010 CC"(Ljava/lang/reflect/Executable;Z)I", (void*)&WB_GetMethodCompilationLevel},
1011 {CC"getMethodEntryBci",
1012 CC"(Ljava/lang/reflect/Executable;)I", (void*)&WB_GetMethodEntryBci},
1013 {CC"getCompileQueueSize",
1014 CC"(I)I", (void*)&WB_GetCompileQueueSize},
1015 {CC"testSetForceInlineMethod",
1016 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetForceInlineMethod},
1017 {CC"enqueueMethodForCompilation",
1018 CC"(Ljava/lang/reflect/Executable;II)Z", (void*)&WB_EnqueueMethodForCompilation},
1019 {CC"clearMethodState",
1020 CC"(Ljava/lang/reflect/Executable;)V", (void*)&WB_ClearMethodState},
1021 {CC"isConstantVMFlag", CC"(Ljava/lang/String;)Z", (void*)&WB_IsConstantVMFlag},
1022 {CC"isLockedVMFlag", CC"(Ljava/lang/String;)Z", (void*)&WB_IsLockedVMFlag},
1023 {CC"setBooleanVMFlag", CC"(Ljava/lang/String;Z)V",(void*)&WB_SetBooleanVMFlag},
1024 {CC"setIntxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntxVMFlag},
1025 {CC"setUintxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintxVMFlag},
1026 {CC"setUint64VMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUint64VMFlag},
1027 {CC"setSizeTVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetSizeTVMFlag},
1028 {CC"setDoubleVMFlag", CC"(Ljava/lang/String;D)V",(void*)&WB_SetDoubleVMFlag},
1029 {CC"setStringVMFlag", CC"(Ljava/lang/String;Ljava/lang/String;)V",
1030 (void*)&WB_SetStringVMFlag},
1031 {CC"getBooleanVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Boolean;",
1032 (void*)&WB_GetBooleanVMFlag},
1033 {CC"getIntxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;",
1034 (void*)&WB_GetIntxVMFlag},
1035 {CC"getUintxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;",
1036 (void*)&WB_GetUintxVMFlag},
1037 {CC"getUint64VMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;",
1038 (void*)&WB_GetUint64VMFlag},
1039 {CC"getSizeTVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;",
1040 (void*)&WB_GetSizeTVMFlag},
1041 {CC"getDoubleVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Double;",
1042 (void*)&WB_GetDoubleVMFlag},
1043 {CC"getStringVMFlag", CC"(Ljava/lang/String;)Ljava/lang/String;",
1044 (void*)&WB_GetStringVMFlag},
1045 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable },
1046 {CC"fullGC", CC"()V", (void*)&WB_FullGC },
1047 {CC"youngGC", CC"()V", (void*)&WB_YoungGC },
1048 {CC"readReservedMemory", CC"()V", (void*)&WB_ReadReservedMemory },
1049 {CC"allocateMetaspace",
1050 CC"(Ljava/lang/ClassLoader;J)J", (void*)&WB_AllocateMetaspace },
1051 {CC"freeMetaspace",
1052 CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace },
1053 {CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC },
1054 {CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC },
1055 {CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures },
1056 {CC"getNMethod", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;",
1057 (void*)&WB_GetNMethod },
1058 {CC"getThreadStackSize", CC"()J", (void*)&WB_GetThreadStackSize },
1059 {CC"getThreadRemainingStackSize", CC"()J", (void*)&WB_GetThreadRemainingStackSize },
1060 };
1061
1062 #undef CC
1063
1064 JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass))
1065 {
1066 if (WhiteBoxAPI) {
1067 // Make sure that wbclass is loaded by the null classloader
1068 instanceKlassHandle ikh = instanceKlassHandle(JNIHandles::resolve(wbclass)->klass());
1069 Handle loader(ikh->class_loader());
1070 if (loader.is_null()) {
1071 WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0]));
1072 WhiteBox::register_extended(env, wbclass, thread);
1073 WhiteBox::set_used();
1074 }
1075 }
1076 }
1077 JVM_END