Tue, 17 Oct 2017 12:58:25 +0800
merge
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 */
25 #include "precompiled.hpp"
27 #include "memory/metadataFactory.hpp"
28 #include "memory/universe.hpp"
29 #include "oops/oop.inline.hpp"
31 #include "classfile/symbolTable.hpp"
32 #include "classfile/classLoaderData.hpp"
34 #include "prims/whitebox.hpp"
35 #include "prims/wbtestmethods/parserTests.hpp"
37 #include "runtime/arguments.hpp"
38 #include "runtime/interfaceSupport.hpp"
39 #include "runtime/os.hpp"
40 #include "utilities/array.hpp"
41 #include "utilities/debug.hpp"
42 #include "utilities/macros.hpp"
43 #include "utilities/exceptions.hpp"
45 #if INCLUDE_ALL_GCS
46 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
47 #include "gc_implementation/g1/concurrentMark.hpp"
48 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
49 #include "gc_implementation/g1/heapRegionRemSet.hpp"
50 #endif // INCLUDE_ALL_GCS
52 #if INCLUDE_NMT
53 #include "services/mallocSiteTable.hpp"
54 #include "services/memTracker.hpp"
55 #include "utilities/nativeCallStack.hpp"
56 #endif // INCLUDE_NMT
58 #include "compiler/compileBroker.hpp"
59 #include "jvmtifiles/jvmtiEnv.hpp"
60 #include "runtime/compilationPolicy.hpp"
62 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
64 #define SIZE_T_MAX_VALUE ((size_t) -1)
66 bool WhiteBox::_used = false;
68 WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj))
69 return (jlong)(void*)JNIHandles::resolve(obj);
70 WB_END
72 WB_ENTRY(jint, WB_GetHeapOopSize(JNIEnv* env, jobject o))
73 return heapOopSize;
74 WB_END
76 WB_ENTRY(jint, WB_GetVMPageSize(JNIEnv* env, jobject o))
77 return os::vm_page_size();
78 WB_END
80 WB_ENTRY(jlong, WB_GetVMLargePageSize(JNIEnv* env, jobject o))
81 return os::large_page_size();
82 WB_END
84 class WBIsKlassAliveClosure : public KlassClosure {
85 Symbol* _name;
86 bool _found;
87 public:
88 WBIsKlassAliveClosure(Symbol* name) : _name(name), _found(false) {}
90 void do_klass(Klass* k) {
91 if (_found) return;
92 Symbol* ksym = k->name();
93 if (ksym->fast_compare(_name) == 0) {
94 _found = true;
95 }
96 }
98 bool found() const {
99 return _found;
100 }
101 };
103 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name))
104 Handle h_name = JNIHandles::resolve(name);
105 if (h_name.is_null()) return false;
106 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false);
107 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return
109 WBIsKlassAliveClosure closure(sym);
110 ClassLoaderDataGraph::classes_do(&closure);
112 return closure.found();
113 WB_END
115 WB_ENTRY(jboolean, WB_ClassKnownToNotExist(JNIEnv* env, jobject o, jobject loader, jstring name))
116 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
117 const char* class_name = env->GetStringUTFChars(name, NULL);
118 jboolean result = JVM_KnownToNotExist(env, loader, class_name);
119 env->ReleaseStringUTFChars(name, class_name);
120 return result;
121 WB_END
123 WB_ENTRY(jobjectArray, WB_GetLookupCacheURLs(JNIEnv* env, jobject o, jobject loader))
124 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
125 return JVM_GetResourceLookupCacheURLs(env, loader);
126 WB_END
128 WB_ENTRY(jintArray, WB_GetLookupCacheMatches(JNIEnv* env, jobject o, jobject loader, jstring name))
129 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
130 const char* resource_name = env->GetStringUTFChars(name, NULL);
131 jintArray result = JVM_GetResourceLookupCache(env, loader, resource_name);
133 env->ReleaseStringUTFChars(name, resource_name);
134 return result;
135 WB_END
137 WB_ENTRY(void, WB_AddToBootstrapClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) {
138 #if INCLUDE_JVMTI
139 ResourceMark rm;
140 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment));
141 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION);
142 jvmtiError err = jvmti_env->AddToBootstrapClassLoaderSearch(seg);
143 assert(err == JVMTI_ERROR_NONE, "must not fail");
144 #endif
145 }
146 WB_END
148 WB_ENTRY(void, WB_AddToSystemClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) {
149 #if INCLUDE_JVMTI
150 ResourceMark rm;
151 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment));
152 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION);
153 jvmtiError err = jvmti_env->AddToSystemClassLoaderSearch(seg);
154 assert(err == JVMTI_ERROR_NONE, "must not fail");
155 #endif
156 }
157 WB_END
160 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) {
161 return (jlong)Arguments::max_heap_for_compressed_oops();
162 }
163 WB_END
165 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) {
166 CollectorPolicy * p = Universe::heap()->collector_policy();
167 gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap "
168 SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Min alignment "SIZE_FORMAT" Max alignment "SIZE_FORMAT,
169 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(),
170 p->space_alignment(), p->heap_alignment());
171 }
172 WB_END
174 #ifndef PRODUCT
175 // Forward declaration
176 void TestReservedSpace_test();
177 void TestReserveMemorySpecial_test();
178 void TestVirtualSpace_test();
179 void TestMetaspaceAux_test();
180 #endif
182 WB_ENTRY(void, WB_RunMemoryUnitTests(JNIEnv* env, jobject o))
183 #ifndef PRODUCT
184 TestReservedSpace_test();
185 TestReserveMemorySpecial_test();
186 TestVirtualSpace_test();
187 TestMetaspaceAux_test();
188 #endif
189 WB_END
191 WB_ENTRY(void, WB_ReadFromNoaccessArea(JNIEnv* env, jobject o))
192 size_t granularity = os::vm_allocation_granularity();
193 ReservedHeapSpace rhs(100 * granularity, granularity, false, NULL);
194 VirtualSpace vs;
195 vs.initialize(rhs, 50 * granularity);
197 //Check if constraints are complied
198 if (!( UseCompressedOops && rhs.base() != NULL &&
199 Universe::narrow_oop_base() != NULL &&
200 Universe::narrow_oop_use_implicit_null_checks() )) {
201 tty->print_cr("WB_ReadFromNoaccessArea method is useless:\n "
202 "\tUseCompressedOops is %d\n"
203 "\trhs.base() is "PTR_FORMAT"\n"
204 "\tUniverse::narrow_oop_base() is "PTR_FORMAT"\n"
205 "\tUniverse::narrow_oop_use_implicit_null_checks() is %d",
206 UseCompressedOops,
207 rhs.base(),
208 Universe::narrow_oop_base(),
209 Universe::narrow_oop_use_implicit_null_checks());
210 return;
211 }
212 tty->print_cr("Reading from no access area... ");
213 tty->print_cr("*(vs.low_boundary() - rhs.noaccess_prefix() / 2 ) = %c",
214 *(vs.low_boundary() - rhs.noaccess_prefix() / 2 ));
215 WB_END
217 static jint wb_stress_virtual_space_resize(size_t reserved_space_size,
218 size_t magnitude, size_t iterations) {
219 size_t granularity = os::vm_allocation_granularity();
220 ReservedHeapSpace rhs(reserved_space_size * granularity, granularity, false, NULL);
221 VirtualSpace vs;
222 if (!vs.initialize(rhs, 0)) {
223 tty->print_cr("Failed to initialize VirtualSpace. Can't proceed.");
224 return 3;
225 }
227 long seed = os::random();
228 tty->print_cr("Random seed is %ld", seed);
229 os::init_random(seed);
231 for (size_t i = 0; i < iterations; i++) {
233 // Whether we will shrink or grow
234 bool shrink = os::random() % 2L == 0;
236 // Get random delta to resize virtual space
237 size_t delta = (size_t)os::random() % magnitude;
239 // If we are about to shrink virtual space below zero, then expand instead
240 if (shrink && vs.committed_size() < delta) {
241 shrink = false;
242 }
244 // Resizing by delta
245 if (shrink) {
246 vs.shrink_by(delta);
247 } else {
248 // If expanding fails expand_by will silently return false
249 vs.expand_by(delta, true);
250 }
251 }
252 return 0;
253 }
255 WB_ENTRY(jint, WB_StressVirtualSpaceResize(JNIEnv* env, jobject o,
256 jlong reserved_space_size, jlong magnitude, jlong iterations))
257 tty->print_cr("reservedSpaceSize="JLONG_FORMAT", magnitude="JLONG_FORMAT", "
258 "iterations="JLONG_FORMAT"\n", reserved_space_size, magnitude,
259 iterations);
260 if (reserved_space_size < 0 || magnitude < 0 || iterations < 0) {
261 tty->print_cr("One of variables printed above is negative. Can't proceed.\n");
262 return 1;
263 }
265 // sizeof(size_t) depends on whether OS is 32bit or 64bit. sizeof(jlong) is
266 // always 8 byte. That's why we should avoid overflow in case of 32bit platform.
267 if (sizeof(size_t) < sizeof(jlong)) {
268 jlong size_t_max_value = (jlong) SIZE_T_MAX_VALUE;
269 if (reserved_space_size > size_t_max_value || magnitude > size_t_max_value
270 || iterations > size_t_max_value) {
271 tty->print_cr("One of variables printed above overflows size_t. Can't proceed.\n");
272 return 2;
273 }
274 }
276 return wb_stress_virtual_space_resize((size_t) reserved_space_size,
277 (size_t) magnitude, (size_t) iterations);
278 WB_END
280 WB_ENTRY(jboolean, WB_isObjectInOldGen(JNIEnv* env, jobject o, jobject obj))
281 oop p = JNIHandles::resolve(obj);
282 #if INCLUDE_ALL_GCS
283 if (UseG1GC) {
284 G1CollectedHeap* g1 = G1CollectedHeap::heap();
285 const HeapRegion* hr = g1->heap_region_containing(p);
286 if (hr == NULL) {
287 return false;
288 }
289 return !(hr->is_young());
290 } else if (UseParallelGC) {
291 ParallelScavengeHeap* psh = ParallelScavengeHeap::heap();
292 return !psh->is_in_young(p);
293 }
294 #endif // INCLUDE_ALL_GCS
295 GenCollectedHeap* gch = GenCollectedHeap::heap();
296 return !gch->is_in_young(p);
297 WB_END
299 WB_ENTRY(jlong, WB_GetObjectSize(JNIEnv* env, jobject o, jobject obj))
300 oop p = JNIHandles::resolve(obj);
301 return p->size() * HeapWordSize;
302 WB_END
304 #if INCLUDE_ALL_GCS
305 WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj))
306 G1CollectedHeap* g1 = G1CollectedHeap::heap();
307 oop result = JNIHandles::resolve(obj);
308 const HeapRegion* hr = g1->heap_region_containing(result);
309 return hr->isHumongous();
310 WB_END
312 WB_ENTRY(jlong, WB_G1NumMaxRegions(JNIEnv* env, jobject o))
313 G1CollectedHeap* g1 = G1CollectedHeap::heap();
314 size_t nr = g1->max_regions();
315 return (jlong)nr;
316 WB_END
318 WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o))
319 G1CollectedHeap* g1 = G1CollectedHeap::heap();
320 size_t nr = g1->num_free_regions();
321 return (jlong)nr;
322 WB_END
324 WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o))
325 G1CollectedHeap* g1 = G1CollectedHeap::heap();
326 ConcurrentMark* cm = g1->concurrent_mark();
327 return cm->concurrent_marking_in_progress();
328 WB_END
330 WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o))
331 return (jint)HeapRegion::GrainBytes;
332 WB_END
334 WB_ENTRY(jobject, WB_G1AuxiliaryMemoryUsage(JNIEnv* env))
335 ResourceMark rm(THREAD);
336 G1CollectedHeap* g1h = G1CollectedHeap::heap();
337 MemoryUsage usage = g1h->get_auxiliary_data_memory_usage();
338 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL);
339 return JNIHandles::make_local(env, h());
340 WB_END
341 #endif // INCLUDE_ALL_GCS
343 #if INCLUDE_NMT
344 // Alloc memory using the test memory type so that we can use that to see if
345 // NMT picks it up correctly
346 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size))
347 jlong addr = 0;
348 addr = (jlong)(uintptr_t)os::malloc(size, mtTest);
349 return addr;
350 WB_END
352 // Alloc memory with pseudo call stack. The test can create psudo malloc
353 // allocation site to stress the malloc tracking.
354 WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack))
355 address pc = (address)(size_t)pseudo_stack;
356 NativeCallStack stack(&pc, 1);
357 return (jlong)(uintptr_t)os::malloc(size, mtTest, stack);
358 WB_END
360 // Free the memory allocated by NMTAllocTest
361 WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem))
362 os::free((void*)(uintptr_t)mem, mtTest);
363 WB_END
365 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size))
366 jlong addr = 0;
368 addr = (jlong)(uintptr_t)os::reserve_memory(size);
369 MemTracker::record_virtual_memory_type((address)addr, mtTest);
371 return addr;
372 WB_END
375 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
376 os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem);
377 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest);
378 WB_END
380 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
381 os::uncommit_memory((char *)(uintptr_t)addr, size);
382 WB_END
384 WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
385 os::release_memory((char *)(uintptr_t)addr, size);
386 WB_END
388 WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env))
389 return MemTracker::tracking_level() == NMT_detail;
390 WB_END
392 WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env))
393 // Test that we can downgrade NMT levels but not upgrade them.
394 if (MemTracker::tracking_level() == NMT_off) {
395 MemTracker::transition_to(NMT_off);
396 return MemTracker::tracking_level() == NMT_off;
397 } else {
398 assert(MemTracker::tracking_level() == NMT_detail, "Should start out as detail tracking");
399 MemTracker::transition_to(NMT_summary);
400 assert(MemTracker::tracking_level() == NMT_summary, "Should be summary now");
402 // Can't go to detail once NMT is set to summary.
403 MemTracker::transition_to(NMT_detail);
404 assert(MemTracker::tracking_level() == NMT_summary, "Should still be summary now");
406 // Shutdown sets tracking level to minimal.
407 MemTracker::shutdown();
408 assert(MemTracker::tracking_level() == NMT_minimal, "Should be minimal now");
410 // Once the tracking level is minimal, we cannot increase to summary.
411 // The code ignores this request instead of asserting because if the malloc site
412 // table overflows in another thread, it tries to change the code to summary.
413 MemTracker::transition_to(NMT_summary);
414 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now");
416 // Really can never go up to detail, verify that the code would never do this.
417 MemTracker::transition_to(NMT_detail);
418 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now");
419 return MemTracker::tracking_level() == NMT_minimal;
420 }
421 WB_END
423 WB_ENTRY(jint, WB_NMTGetHashSize(JNIEnv* env, jobject o))
424 int hash_size = MallocSiteTable::hash_buckets();
425 assert(hash_size > 0, "NMT hash_size should be > 0");
426 return (jint)hash_size;
427 WB_END
428 #endif // INCLUDE_NMT
430 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) {
431 assert(method != NULL, "method should not be null");
432 ThreadToNativeFromVM ttn(thread);
433 return env->FromReflectedMethod(method);
434 }
436 WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o))
437 MutexLockerEx mu(Compile_lock);
438 CodeCache::mark_all_nmethods_for_deoptimization();
439 VM_Deoptimize op;
440 VMThread::execute(&op);
441 WB_END
443 WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
444 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
445 int result = 0;
446 CHECK_JNI_EXCEPTION_(env, result);
447 MutexLockerEx mu(Compile_lock);
448 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
449 if (is_osr) {
450 result += mh->mark_osr_nmethods();
451 } else if (mh->code() != NULL) {
452 mh->code()->mark_for_deoptimization();
453 ++result;
454 }
455 result += CodeCache::mark_for_deoptimization(mh());
456 if (result > 0) {
457 VM_Deoptimize op;
458 VMThread::execute(&op);
459 }
460 return result;
461 WB_END
463 WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
464 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
465 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
466 MutexLockerEx mu(Compile_lock);
467 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
468 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code();
469 if (code == NULL) {
470 return JNI_FALSE;
471 }
472 return (code->is_alive() && !code->is_marked_for_deoptimization());
473 WB_END
475 WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr))
476 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
477 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
478 MutexLockerEx mu(Compile_lock);
479 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
480 if (is_osr) {
481 return CompilationPolicy::can_be_osr_compiled(mh, comp_level);
482 } else {
483 return CompilationPolicy::can_be_compiled(mh, comp_level);
484 }
485 WB_END
487 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method))
488 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
489 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
490 MutexLockerEx mu(Compile_lock);
491 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
492 return mh->queued_for_compilation();
493 WB_END
495 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
496 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
497 CHECK_JNI_EXCEPTION_(env, CompLevel_none);
498 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
499 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code();
500 return (code != NULL ? code->comp_level() : CompLevel_none);
501 WB_END
503 WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr))
504 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
505 CHECK_JNI_EXCEPTION(env);
506 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
507 if (is_osr) {
508 mh->set_not_osr_compilable(comp_level, true /* report */, "WhiteBox");
509 } else {
510 mh->set_not_compilable(comp_level, true /* report */, "WhiteBox");
511 }
512 WB_END
514 WB_ENTRY(jint, WB_GetMethodEntryBci(JNIEnv* env, jobject o, jobject method))
515 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
516 CHECK_JNI_EXCEPTION_(env, InvocationEntryBci);
517 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
518 nmethod* code = mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false);
519 return (code != NULL && code->is_osr_method() ? code->osr_entry_bci() : InvocationEntryBci);
520 WB_END
522 WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value))
523 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
524 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
525 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
526 bool result = mh->dont_inline();
527 mh->set_dont_inline(value == JNI_TRUE);
528 return result;
529 WB_END
531 WB_ENTRY(jint, WB_GetCompileQueueSize(JNIEnv* env, jobject o, jint comp_level))
532 if (comp_level == CompLevel_any) {
533 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ +
534 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */;
535 } else {
536 return CompileBroker::queue_size(comp_level);
537 }
538 WB_END
540 WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value))
541 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
542 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
543 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
544 bool result = mh->force_inline();
545 mh->set_force_inline(value == JNI_TRUE);
546 return result;
547 WB_END
549 WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level, jint bci))
550 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
551 CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
552 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
553 nmethod* nm = CompileBroker::compile_method(mh, bci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD);
554 MutexLockerEx mu(Compile_lock);
555 return (mh->queued_for_compilation() || nm != NULL);
556 WB_END
558 class VM_WhiteBoxOperation : public VM_Operation {
559 public:
560 VM_WhiteBoxOperation() { }
561 VMOp_Type type() const { return VMOp_WhiteBoxOperation; }
562 bool allow_nested_vm_operations() const { return true; }
563 };
565 class AlwaysFalseClosure : public BoolObjectClosure {
566 public:
567 bool do_object_b(oop p) { return false; }
568 };
570 static AlwaysFalseClosure always_false;
572 class VM_WhiteBoxCleanMethodData : public VM_WhiteBoxOperation {
573 public:
574 VM_WhiteBoxCleanMethodData(MethodData* mdo) : _mdo(mdo) { }
575 void doit() {
576 _mdo->clean_method_data(&always_false);
577 }
578 private:
579 MethodData* _mdo;
580 };
582 WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method))
583 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
584 CHECK_JNI_EXCEPTION(env);
585 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
586 MutexLockerEx mu(Compile_lock);
587 MethodData* mdo = mh->method_data();
588 MethodCounters* mcs = mh->method_counters();
590 if (mdo != NULL) {
591 mdo->init();
592 ResourceMark rm;
593 int arg_count = mdo->method()->size_of_parameters();
594 for (int i = 0; i < arg_count; i++) {
595 mdo->set_arg_modified(i, 0);
596 }
597 VM_WhiteBoxCleanMethodData op(mdo);
598 VMThread::execute(&op);
599 }
601 mh->clear_not_c1_compilable();
602 mh->clear_not_c2_compilable();
603 mh->clear_not_c2_osr_compilable();
604 NOT_PRODUCT(mh->set_compiled_invocation_count(0));
605 if (mcs != NULL) {
606 mcs->backedge_counter()->init();
607 mcs->invocation_counter()->init();
608 mcs->set_interpreter_invocation_count(0);
609 mcs->set_interpreter_throwout_count(0);
611 #ifdef TIERED
612 mcs->set_rate(0.0F);
613 mh->set_prev_event_count(0);
614 mh->set_prev_time(0);
615 #endif
616 }
617 WB_END
619 template <typename T>
620 static bool GetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAt)(const char*, T*)) {
621 if (name == NULL) {
622 return false;
623 }
624 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
625 const char* flag_name = env->GetStringUTFChars(name, NULL);
626 bool result = (*TAt)(flag_name, value);
627 env->ReleaseStringUTFChars(name, flag_name);
628 return result;
629 }
631 template <typename T>
632 static bool SetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, bool (*TAtPut)(const char*, T*, Flag::Flags)) {
633 if (name == NULL) {
634 return false;
635 }
636 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
637 const char* flag_name = env->GetStringUTFChars(name, NULL);
638 bool result = (*TAtPut)(flag_name, value, Flag::INTERNAL);
639 env->ReleaseStringUTFChars(name, flag_name);
640 return result;
641 }
643 template <typename T>
644 static jobject box(JavaThread* thread, JNIEnv* env, Symbol* name, Symbol* sig, T value) {
645 ResourceMark rm(thread);
646 jclass clazz = env->FindClass(name->as_C_string());
647 CHECK_JNI_EXCEPTION_(env, NULL);
648 jmethodID methodID = env->GetStaticMethodID(clazz,
649 vmSymbols::valueOf_name()->as_C_string(),
650 sig->as_C_string());
651 CHECK_JNI_EXCEPTION_(env, NULL);
652 jobject result = env->CallStaticObjectMethod(clazz, methodID, value);
653 CHECK_JNI_EXCEPTION_(env, NULL);
654 return result;
655 }
657 static jobject booleanBox(JavaThread* thread, JNIEnv* env, jboolean value) {
658 return box(thread, env, vmSymbols::java_lang_Boolean(), vmSymbols::Boolean_valueOf_signature(), value);
659 }
660 static jobject integerBox(JavaThread* thread, JNIEnv* env, jint value) {
661 return box(thread, env, vmSymbols::java_lang_Integer(), vmSymbols::Integer_valueOf_signature(), value);
662 }
663 static jobject longBox(JavaThread* thread, JNIEnv* env, jlong value) {
664 return box(thread, env, vmSymbols::java_lang_Long(), vmSymbols::Long_valueOf_signature(), value);
665 }
666 /* static jobject floatBox(JavaThread* thread, JNIEnv* env, jfloat value) {
667 return box(thread, env, vmSymbols::java_lang_Float(), vmSymbols::Float_valueOf_signature(), value);
668 }*/
669 static jobject doubleBox(JavaThread* thread, JNIEnv* env, jdouble value) {
670 return box(thread, env, vmSymbols::java_lang_Double(), vmSymbols::Double_valueOf_signature(), value);
671 }
673 WB_ENTRY(jobject, WB_GetBooleanVMFlag(JNIEnv* env, jobject o, jstring name))
674 bool result;
675 if (GetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAt)) {
676 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
677 return booleanBox(thread, env, result);
678 }
679 return NULL;
680 WB_END
682 WB_ENTRY(jobject, WB_GetIntxVMFlag(JNIEnv* env, jobject o, jstring name))
683 intx result;
684 if (GetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAt)) {
685 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
686 return longBox(thread, env, result);
687 }
688 return NULL;
689 WB_END
691 WB_ENTRY(jobject, WB_GetUintxVMFlag(JNIEnv* env, jobject o, jstring name))
692 uintx result;
693 if (GetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAt)) {
694 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
695 return longBox(thread, env, result);
696 }
697 return NULL;
698 WB_END
700 WB_ENTRY(jobject, WB_GetUint64VMFlag(JNIEnv* env, jobject o, jstring name))
701 uint64_t result;
702 if (GetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAt)) {
703 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
704 return longBox(thread, env, result);
705 }
706 return NULL;
707 WB_END
709 WB_ENTRY(jobject, WB_GetDoubleVMFlag(JNIEnv* env, jobject o, jstring name))
710 double result;
711 if (GetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAt)) {
712 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
713 return doubleBox(thread, env, result);
714 }
715 return NULL;
716 WB_END
718 WB_ENTRY(jstring, WB_GetStringVMFlag(JNIEnv* env, jobject o, jstring name))
719 ccstr ccstrResult;
720 if (GetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAt)) {
721 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
722 jstring result = env->NewStringUTF(ccstrResult);
723 CHECK_JNI_EXCEPTION_(env, NULL);
724 return result;
725 }
726 return NULL;
727 WB_END
729 WB_ENTRY(void, WB_SetBooleanVMFlag(JNIEnv* env, jobject o, jstring name, jboolean value))
730 bool result = value == JNI_TRUE ? true : false;
731 SetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAtPut);
732 WB_END
734 WB_ENTRY(void, WB_SetIntxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value))
735 intx result = value;
736 SetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAtPut);
737 WB_END
739 WB_ENTRY(void, WB_SetUintxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value))
740 uintx result = value;
741 SetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAtPut);
742 WB_END
744 WB_ENTRY(void, WB_SetUint64VMFlag(JNIEnv* env, jobject o, jstring name, jlong value))
745 uint64_t result = value;
746 SetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAtPut);
747 WB_END
749 WB_ENTRY(void, WB_SetDoubleVMFlag(JNIEnv* env, jobject o, jstring name, jdouble value))
750 double result = value;
751 SetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAtPut);
752 WB_END
754 WB_ENTRY(void, WB_SetStringVMFlag(JNIEnv* env, jobject o, jstring name, jstring value))
755 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
756 const char* ccstrValue = (value == NULL) ? NULL : env->GetStringUTFChars(value, NULL);
757 ccstr ccstrResult = ccstrValue;
758 bool needFree;
759 {
760 ThreadInVMfromNative ttvfn(thread); // back to VM
761 needFree = SetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAtPut);
762 }
763 if (value != NULL) {
764 env->ReleaseStringUTFChars(value, ccstrValue);
765 }
766 if (needFree) {
767 FREE_C_HEAP_ARRAY(char, ccstrResult, mtInternal);
768 }
769 WB_END
772 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString))
773 ResourceMark rm(THREAD);
774 int len;
775 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len, CHECK_false);
776 return (StringTable::lookup(name, len) != NULL);
777 WB_END
779 WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o))
780 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true);
781 Universe::heap()->collect(GCCause::_last_ditch_collection);
782 #if INCLUDE_ALL_GCS
783 if (UseG1GC) {
784 // Needs to be cleared explicitly for G1
785 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(false);
786 }
787 #endif // INCLUDE_ALL_GCS
788 WB_END
790 WB_ENTRY(void, WB_YoungGC(JNIEnv* env, jobject o))
791 Universe::heap()->collect(GCCause::_wb_young_gc);
792 WB_END
794 WB_ENTRY(void, WB_ReadReservedMemory(JNIEnv* env, jobject o))
795 // static+volatile in order to force the read to happen
796 // (not be eliminated by the compiler)
797 static char c;
798 static volatile char* p;
800 p = os::reserve_memory(os::vm_allocation_granularity(), NULL, 0);
801 if (p == NULL) {
802 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Failed to reserve memory");
803 }
805 c = *p;
806 WB_END
808 WB_ENTRY(jstring, WB_GetCPUFeatures(JNIEnv* env, jobject o))
809 const char* cpu_features = VM_Version::cpu_features();
810 ThreadToNativeFromVM ttn(thread);
811 jstring features_string = env->NewStringUTF(cpu_features);
813 CHECK_JNI_EXCEPTION_(env, NULL);
815 return features_string;
816 WB_END
819 WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
820 ResourceMark rm(THREAD);
821 jmethodID jmid = reflected_method_to_jmid(thread, env, method);
822 CHECK_JNI_EXCEPTION_(env, NULL);
823 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
824 nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code();
825 jobjectArray result = NULL;
826 if (code == NULL) {
827 return result;
828 }
829 int insts_size = code->insts_size();
831 ThreadToNativeFromVM ttn(thread);
832 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string());
833 CHECK_JNI_EXCEPTION_(env, NULL);
834 result = env->NewObjectArray(2, clazz, NULL);
835 if (result == NULL) {
836 return result;
837 }
839 jobject obj = integerBox(thread, env, code->comp_level());
840 CHECK_JNI_EXCEPTION_(env, NULL);
841 env->SetObjectArrayElement(result, 0, obj);
843 jbyteArray insts = env->NewByteArray(insts_size);
844 CHECK_JNI_EXCEPTION_(env, NULL);
845 env->SetByteArrayRegion(insts, 0, insts_size, (jbyte*) code->insts_begin());
846 env->SetObjectArrayElement(result, 1, insts);
848 return result;
849 WB_END
852 int WhiteBox::array_bytes_to_length(size_t bytes) {
853 return Array<u1>::bytes_to_length(bytes);
854 }
856 WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size))
857 if (size < 0) {
858 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
859 err_msg("WB_AllocateMetaspace: size is negative: " JLONG_FORMAT, size));
860 }
862 oop class_loader_oop = JNIHandles::resolve(class_loader);
863 ClassLoaderData* cld = class_loader_oop != NULL
864 ? java_lang_ClassLoader::loader_data(class_loader_oop)
865 : ClassLoaderData::the_null_class_loader_data();
867 void* metadata = MetadataFactory::new_writeable_array<u1>(cld, WhiteBox::array_bytes_to_length((size_t)size), thread);
869 return (jlong)(uintptr_t)metadata;
870 WB_END
872 WB_ENTRY(void, WB_FreeMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong addr, jlong size))
873 oop class_loader_oop = JNIHandles::resolve(class_loader);
874 ClassLoaderData* cld = class_loader_oop != NULL
875 ? java_lang_ClassLoader::loader_data(class_loader_oop)
876 : ClassLoaderData::the_null_class_loader_data();
878 MetadataFactory::free_array(cld, (Array<u1>*)(uintptr_t)addr);
879 WB_END
881 WB_ENTRY(jlong, WB_IncMetaspaceCapacityUntilGC(JNIEnv* env, jobject wb, jlong inc))
882 if (inc < 0) {
883 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
884 err_msg("WB_IncMetaspaceCapacityUntilGC: inc is negative: " JLONG_FORMAT, inc));
885 }
887 jlong max_size_t = (jlong) ((size_t) -1);
888 if (inc > max_size_t) {
889 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
890 err_msg("WB_IncMetaspaceCapacityUntilGC: inc does not fit in size_t: " JLONG_FORMAT, inc));
891 }
893 size_t new_cap_until_GC = 0;
894 size_t aligned_inc = align_size_down((size_t) inc, Metaspace::commit_alignment());
895 bool success = MetaspaceGC::inc_capacity_until_GC(aligned_inc, &new_cap_until_GC);
896 if (!success) {
897 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(),
898 "WB_IncMetaspaceCapacityUntilGC: could not increase capacity until GC "
899 "due to contention with another thread");
900 }
901 return (jlong) new_cap_until_GC;
902 WB_END
904 WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb))
905 return (jlong) MetaspaceGC::capacity_until_GC();
906 WB_END
908 WB_ENTRY(jboolean, WB_IsMonitorInflated(JNIEnv* env, jobject wb, jobject obj))
909 oop obj_oop = JNIHandles::resolve(obj);
910 return (jboolean) obj_oop->mark()->has_monitor();
911 WB_END
913 WB_ENTRY(void, WB_ForceSafepoint(JNIEnv* env, jobject wb))
914 VM_ForceSafepoint force_safepoint_op;
915 VMThread::execute(&force_safepoint_op);
916 WB_END
918 //Some convenience methods to deal with objects from java
919 int WhiteBox::offset_for_field(const char* field_name, oop object,
920 Symbol* signature_symbol) {
921 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid");
922 Thread* THREAD = Thread::current();
924 //Get the class of our object
925 Klass* arg_klass = object->klass();
926 //Turn it into an instance-klass
927 InstanceKlass* ik = InstanceKlass::cast(arg_klass);
929 //Create symbols to look for in the class
930 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name),
931 THREAD);
933 //To be filled in with an offset of the field we're looking for
934 fieldDescriptor fd;
936 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd);
937 if (res == NULL) {
938 tty->print_cr("Invalid layout of %s at %s", ik->external_name(),
939 name_symbol->as_C_string());
940 vm_exit_during_initialization("Invalid layout of preloaded class: use -XX:+TraceClassLoading to see the origin of the problem class");
941 }
943 //fetch the field at the offset we've found
944 int dest_offset = fd.offset();
946 return dest_offset;
947 }
950 const char* WhiteBox::lookup_jstring(const char* field_name, oop object) {
951 int offset = offset_for_field(field_name, object,
952 vmSymbols::string_signature());
953 oop string = object->obj_field(offset);
954 if (string == NULL) {
955 return NULL;
956 }
957 const char* ret = java_lang_String::as_utf8_string(string);
958 return ret;
959 }
961 bool WhiteBox::lookup_bool(const char* field_name, oop object) {
962 int offset =
963 offset_for_field(field_name, object, vmSymbols::bool_signature());
964 bool ret = (object->bool_field(offset) == JNI_TRUE);
965 return ret;
966 }
968 void WhiteBox::register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread, JNINativeMethod* method_array, int method_count) {
969 ResourceMark rm;
970 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
972 // one by one registration natives for exception catching
973 jclass no_such_method_error_klass = env->FindClass(vmSymbols::java_lang_NoSuchMethodError()->as_C_string());
974 CHECK_JNI_EXCEPTION(env);
975 for (int i = 0, n = method_count; i < n; ++i) {
976 // Skip dummy entries
977 if (method_array[i].fnPtr == NULL) continue;
978 if (env->RegisterNatives(wbclass, &method_array[i], 1) != 0) {
979 jthrowable throwable_obj = env->ExceptionOccurred();
980 if (throwable_obj != NULL) {
981 env->ExceptionClear();
982 if (env->IsInstanceOf(throwable_obj, no_such_method_error_klass)) {
983 // NoSuchMethodError is thrown when a method can't be found or a method is not native.
984 // Ignoring the exception since it is not preventing use of other WhiteBox methods.
985 tty->print_cr("Warning: 'NoSuchMethodError' on register of sun.hotspot.WhiteBox::%s%s",
986 method_array[i].name, method_array[i].signature);
987 }
988 } else {
989 // Registration failed unexpectedly.
990 tty->print_cr("Warning: unexpected error on register of sun.hotspot.WhiteBox::%s%s. All methods will be unregistered",
991 method_array[i].name, method_array[i].signature);
992 env->UnregisterNatives(wbclass);
993 break;
994 }
995 }
996 }
997 }
999 #define CC (char*)
1001 static JNINativeMethod methods[] = {
1002 {CC"getObjectAddress", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectAddress },
1003 {CC"getObjectSize", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectSize },
1004 {CC"isObjectInOldGen", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen },
1005 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize },
1006 {CC"getVMPageSize", CC"()I", (void*)&WB_GetVMPageSize },
1007 {CC"getVMLargePageSize", CC"()J", (void*)&WB_GetVMLargePageSize},
1008 {CC"isClassAlive0", CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive },
1009 {CC"classKnownToNotExist",
1010 CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)Z",(void*)&WB_ClassKnownToNotExist},
1011 {CC"getLookupCacheURLs", CC"(Ljava/lang/ClassLoader;)[Ljava/net/URL;", (void*)&WB_GetLookupCacheURLs},
1012 {CC"getLookupCacheMatches", CC"(Ljava/lang/ClassLoader;Ljava/lang/String;)[I",
1013 (void*)&WB_GetLookupCacheMatches},
1014 {CC"parseCommandLine",
1015 CC"(Ljava/lang/String;[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;",
1016 (void*) &WB_ParseCommandLine
1017 },
1018 {CC"addToBootstrapClassLoaderSearch", CC"(Ljava/lang/String;)V",
1019 (void*)&WB_AddToBootstrapClassLoaderSearch},
1020 {CC"addToSystemClassLoaderSearch", CC"(Ljava/lang/String;)V",
1021 (void*)&WB_AddToSystemClassLoaderSearch},
1022 {CC"getCompressedOopsMaxHeapSize", CC"()J",
1023 (void*)&WB_GetCompressedOopsMaxHeapSize},
1024 {CC"printHeapSizes", CC"()V", (void*)&WB_PrintHeapSizes },
1025 {CC"runMemoryUnitTests", CC"()V", (void*)&WB_RunMemoryUnitTests},
1026 {CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea},
1027 {CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize},
1028 #if INCLUDE_ALL_GCS
1029 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark},
1030 {CC"g1IsHumongous", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous },
1031 {CC"g1NumMaxRegions", CC"()J", (void*)&WB_G1NumMaxRegions },
1032 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions },
1033 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize },
1034 {CC"g1AuxiliaryMemoryUsage", CC"()Ljava/lang/management/MemoryUsage;",
1035 (void*)&WB_G1AuxiliaryMemoryUsage },
1036 #endif // INCLUDE_ALL_GCS
1037 #if INCLUDE_NMT
1038 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc },
1039 {CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack},
1040 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree },
1041 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory },
1042 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory },
1043 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory },
1044 {CC"NMTReleaseMemory", CC"(JJ)V", (void*)&WB_NMTReleaseMemory },
1045 {CC"NMTIsDetailSupported",CC"()Z", (void*)&WB_NMTIsDetailSupported},
1046 {CC"NMTChangeTrackingLevel", CC"()Z", (void*)&WB_NMTChangeTrackingLevel},
1047 {CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize },
1048 #endif // INCLUDE_NMT
1049 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll },
1050 {CC"deoptimizeMethod", CC"(Ljava/lang/reflect/Executable;Z)I",
1051 (void*)&WB_DeoptimizeMethod },
1052 {CC"isMethodCompiled", CC"(Ljava/lang/reflect/Executable;Z)Z",
1053 (void*)&WB_IsMethodCompiled },
1054 {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Executable;IZ)Z",
1055 (void*)&WB_IsMethodCompilable},
1056 {CC"isMethodQueuedForCompilation",
1057 CC"(Ljava/lang/reflect/Executable;)Z", (void*)&WB_IsMethodQueuedForCompilation},
1058 {CC"makeMethodNotCompilable",
1059 CC"(Ljava/lang/reflect/Executable;IZ)V", (void*)&WB_MakeMethodNotCompilable},
1060 {CC"testSetDontInlineMethod",
1061 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetDontInlineMethod},
1062 {CC"getMethodCompilationLevel",
1063 CC"(Ljava/lang/reflect/Executable;Z)I", (void*)&WB_GetMethodCompilationLevel},
1064 {CC"getMethodEntryBci",
1065 CC"(Ljava/lang/reflect/Executable;)I", (void*)&WB_GetMethodEntryBci},
1066 {CC"getCompileQueueSize",
1067 CC"(I)I", (void*)&WB_GetCompileQueueSize},
1068 {CC"testSetForceInlineMethod",
1069 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetForceInlineMethod},
1070 {CC"enqueueMethodForCompilation",
1071 CC"(Ljava/lang/reflect/Executable;II)Z", (void*)&WB_EnqueueMethodForCompilation},
1072 {CC"clearMethodState",
1073 CC"(Ljava/lang/reflect/Executable;)V", (void*)&WB_ClearMethodState},
1074 {CC"setBooleanVMFlag", CC"(Ljava/lang/String;Z)V",(void*)&WB_SetBooleanVMFlag},
1075 {CC"setIntxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntxVMFlag},
1076 {CC"setUintxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintxVMFlag},
1077 {CC"setUint64VMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUint64VMFlag},
1078 {CC"setDoubleVMFlag", CC"(Ljava/lang/String;D)V",(void*)&WB_SetDoubleVMFlag},
1079 {CC"setStringVMFlag", CC"(Ljava/lang/String;Ljava/lang/String;)V",
1080 (void*)&WB_SetStringVMFlag},
1081 {CC"getBooleanVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Boolean;",
1082 (void*)&WB_GetBooleanVMFlag},
1083 {CC"getIntxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;",
1084 (void*)&WB_GetIntxVMFlag},
1085 {CC"getUintxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;",
1086 (void*)&WB_GetUintxVMFlag},
1087 {CC"getUint64VMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;",
1088 (void*)&WB_GetUint64VMFlag},
1089 {CC"getDoubleVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Double;",
1090 (void*)&WB_GetDoubleVMFlag},
1091 {CC"getStringVMFlag", CC"(Ljava/lang/String;)Ljava/lang/String;",
1092 (void*)&WB_GetStringVMFlag},
1093 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable },
1094 {CC"fullGC", CC"()V", (void*)&WB_FullGC },
1095 {CC"youngGC", CC"()V", (void*)&WB_YoungGC },
1096 {CC"readReservedMemory", CC"()V", (void*)&WB_ReadReservedMemory },
1097 {CC"allocateMetaspace",
1098 CC"(Ljava/lang/ClassLoader;J)J", (void*)&WB_AllocateMetaspace },
1099 {CC"freeMetaspace",
1100 CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace },
1101 {CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC },
1102 {CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC },
1103 {CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures },
1104 {CC"getNMethod", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;",
1105 (void*)&WB_GetNMethod },
1106 {CC"isMonitorInflated", CC"(Ljava/lang/Object;)Z", (void*)&WB_IsMonitorInflated },
1107 {CC"forceSafepoint", CC"()V", (void*)&WB_ForceSafepoint },
1108 };
1110 #undef CC
1112 JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass))
1113 {
1114 if (WhiteBoxAPI) {
1115 // Make sure that wbclass is loaded by the null classloader
1116 instanceKlassHandle ikh = instanceKlassHandle(JNIHandles::resolve(wbclass)->klass());
1117 Handle loader(ikh->class_loader());
1118 if (loader.is_null()) {
1119 WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0]));
1120 WhiteBox::register_extended(env, wbclass, thread);
1121 WhiteBox::set_used();
1122 }
1123 }
1124 }
1125 JVM_END