Mercurial > hg > truffle
annotate src/share/vm/prims/jni.cpp @ 3650:0e8a2a629afb
Pass-by compilation broker.
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Wed, 16 Nov 2011 21:27:28 +0100 |
| parents | 85625aff715b |
| children | 04b9a2566eec |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
2 * Copyright (c) 1997, 2011, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1490
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1490
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1490
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/classLoader.hpp" | |
| 27 #include "classfile/javaClasses.hpp" | |
| 28 #include "classfile/symbolTable.hpp" | |
| 29 #include "classfile/systemDictionary.hpp" | |
| 30 #include "classfile/vmSymbols.hpp" | |
| 31 #include "interpreter/linkResolver.hpp" | |
|
2925
b78b4ae0757c
Also call Compiler shutdown hook in case of System.exit call. Draft VMExits.Sandbox class.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2901
diff
changeset
|
32 #include "graal/graalCompiler.hpp" |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
33 #ifndef SERIALGC |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
34 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
35 #endif // SERIALGC |
| 1972 | 36 #include "memory/allocation.inline.hpp" |
| 37 #include "memory/gcLocker.inline.hpp" | |
| 38 #include "memory/oopFactory.hpp" | |
| 39 #include "memory/universe.inline.hpp" | |
| 40 #include "oops/instanceKlass.hpp" | |
| 41 #include "oops/instanceOop.hpp" | |
| 42 #include "oops/markOop.hpp" | |
| 43 #include "oops/methodOop.hpp" | |
| 44 #include "oops/objArrayKlass.hpp" | |
| 45 #include "oops/objArrayOop.hpp" | |
| 46 #include "oops/oop.inline.hpp" | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
47 #include "oops/symbol.hpp" |
| 1972 | 48 #include "oops/typeArrayKlass.hpp" |
| 49 #include "oops/typeArrayOop.hpp" | |
| 50 #include "prims/jni.h" | |
| 51 #include "prims/jniCheck.hpp" | |
| 52 #include "prims/jniFastGetField.hpp" | |
| 53 #include "prims/jvm.h" | |
| 54 #include "prims/jvm_misc.hpp" | |
| 55 #include "prims/jvmtiExport.hpp" | |
| 56 #include "prims/jvmtiThreadState.hpp" | |
| 57 #include "runtime/compilationPolicy.hpp" | |
| 58 #include "runtime/fieldDescriptor.hpp" | |
| 59 #include "runtime/fprofiler.hpp" | |
| 60 #include "runtime/handles.inline.hpp" | |
| 61 #include "runtime/interfaceSupport.hpp" | |
| 62 #include "runtime/java.hpp" | |
| 63 #include "runtime/javaCalls.hpp" | |
| 64 #include "runtime/jfieldIDWorkaround.hpp" | |
| 65 #include "runtime/reflection.hpp" | |
| 66 #include "runtime/sharedRuntime.hpp" | |
| 67 #include "runtime/signature.hpp" | |
| 68 #include "runtime/vm_operations.hpp" | |
| 69 #include "services/runtimeService.hpp" | |
| 70 #include "utilities/defaultStream.hpp" | |
| 71 #include "utilities/dtrace.hpp" | |
| 72 #include "utilities/events.hpp" | |
| 73 #include "utilities/histogram.hpp" | |
| 74 #ifdef TARGET_ARCH_x86 | |
| 75 # include "jniTypes_x86.hpp" | |
| 76 #endif | |
| 77 #ifdef TARGET_ARCH_sparc | |
| 78 # include "jniTypes_sparc.hpp" | |
| 79 #endif | |
| 80 #ifdef TARGET_ARCH_zero | |
| 81 # include "jniTypes_zero.hpp" | |
| 82 #endif | |
| 83 #ifdef TARGET_OS_FAMILY_linux | |
| 84 # include "os_linux.inline.hpp" | |
| 85 # include "thread_linux.inline.hpp" | |
| 86 #endif | |
| 87 #ifdef TARGET_OS_FAMILY_solaris | |
| 88 # include "os_solaris.inline.hpp" | |
| 89 # include "thread_solaris.inline.hpp" | |
| 90 #endif | |
| 91 #ifdef TARGET_OS_FAMILY_windows | |
| 92 # include "os_windows.inline.hpp" | |
| 93 # include "thread_windows.inline.hpp" | |
| 94 #endif | |
| 0 | 95 |
| 96 static jint CurrentVersion = JNI_VERSION_1_6; | |
| 97 | |
| 98 | |
| 99 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace | |
| 100 // '-return' probe regardless of the return path is taken out of the function. | |
| 101 // Methods that have multiple return paths use this to avoid having to | |
| 102 // instrument each return path. Methods that use CHECK or THROW must use this | |
| 103 // since those macros can cause an immedate uninstrumented return. | |
| 104 // | |
| 105 // In order to get the return value, a reference to the variable containing | |
| 106 // the return value must be passed to the contructor of the object, and | |
| 107 // the return value must be set before return (since the mark object has | |
| 108 // a reference to it). | |
| 109 // | |
| 110 // Example: | |
| 111 // DT_RETURN_MARK_DECL(SomeFunc, int); | |
| 112 // JNI_ENTRY(int, SomeFunc, ...) | |
| 113 // int return_value = 0; | |
| 114 // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value); | |
| 115 // foo(CHECK_0) | |
| 116 // return_value = 5; | |
| 117 // return return_value; | |
| 118 // JNI_END | |
| 119 #define DT_RETURN_MARK_DECL(name, type) \ | |
| 120 HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type); \ | |
| 121 DTRACE_ONLY( \ | |
| 122 class DTraceReturnProbeMark_##name { \ | |
| 123 public: \ | |
| 124 const type& _ret_ref; \ | |
| 125 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \ | |
| 126 ~DTraceReturnProbeMark_##name() { \ | |
| 127 HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref); \ | |
| 128 } \ | |
| 129 } \ | |
| 130 ) | |
| 131 // Void functions are simpler since there's no return value | |
| 132 #define DT_VOID_RETURN_MARK_DECL(name) \ | |
| 133 HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return); \ | |
| 134 DTRACE_ONLY( \ | |
| 135 class DTraceReturnProbeMark_##name { \ | |
| 136 public: \ | |
| 137 ~DTraceReturnProbeMark_##name() { \ | |
| 138 HS_DTRACE_PROBE0(hotspot_jni, name##__return); \ | |
| 139 } \ | |
| 140 } \ | |
| 141 ) | |
| 142 | |
| 143 | |
| 144 // Place these macros in the function to mark the return. Non-void | |
| 145 // functions need the type and address of the return value. | |
| 146 #define DT_RETURN_MARK(name, type, ref) \ | |
| 147 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) ) | |
| 148 #define DT_VOID_RETURN_MARK(name) \ | |
| 149 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark ) | |
| 150 | |
| 151 | |
| 152 // Use these to select distinct code for floating-point vs. non-floating point | |
| 153 // situations. Used from within common macros where we need slightly | |
| 154 // different behavior for Float/Double | |
| 155 #define FP_SELECT_Boolean(intcode, fpcode) intcode | |
| 156 #define FP_SELECT_Byte(intcode, fpcode) intcode | |
| 157 #define FP_SELECT_Char(intcode, fpcode) intcode | |
| 158 #define FP_SELECT_Short(intcode, fpcode) intcode | |
| 159 #define FP_SELECT_Object(intcode, fpcode) intcode | |
| 160 #define FP_SELECT_Int(intcode, fpcode) intcode | |
| 161 #define FP_SELECT_Long(intcode, fpcode) intcode | |
| 162 #define FP_SELECT_Float(intcode, fpcode) fpcode | |
| 163 #define FP_SELECT_Double(intcode, fpcode) fpcode | |
| 164 #define FP_SELECT(TypeName, intcode, fpcode) \ | |
| 165 FP_SELECT_##TypeName(intcode, fpcode) | |
| 166 | |
| 167 #define COMMA , | |
| 168 | |
| 169 // Choose DT_RETURN_MARK macros based on the type: float/double -> void | |
| 170 // (dtrace doesn't do FP yet) | |
| 171 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \ | |
| 172 FP_SELECT(TypeName, \ | |
| 173 DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) ) | |
| 174 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \ | |
| 175 FP_SELECT(TypeName, \ | |
| 176 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) ) | |
| 177 | |
| 178 | |
| 179 // out-of-line helpers for class jfieldIDWorkaround: | |
| 180 | |
| 181 bool jfieldIDWorkaround::is_valid_jfieldID(klassOop k, jfieldID id) { | |
| 182 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) { | |
| 183 uintptr_t as_uint = (uintptr_t) id; | |
| 184 intptr_t offset = raw_instance_offset(id); | |
| 185 if (is_checked_jfieldID(id)) { | |
| 186 if (!klass_hash_ok(k, id)) { | |
| 187 return false; | |
| 188 } | |
| 189 } | |
| 190 return instanceKlass::cast(k)->contains_field_offset(offset); | |
| 191 } else { | |
| 192 JNIid* result = (JNIid*) id; | |
| 193 #ifdef ASSERT | |
| 194 return result != NULL && result->is_static_field_id(); | |
| 195 #else | |
| 196 return result != NULL; | |
| 197 #endif | |
| 198 } | |
| 199 } | |
| 200 | |
| 201 | |
| 202 intptr_t jfieldIDWorkaround::encode_klass_hash(klassOop k, intptr_t offset) { | |
| 203 if (offset <= small_offset_mask) { | |
| 204 klassOop field_klass = k; | |
| 205 klassOop super_klass = Klass::cast(field_klass)->super(); | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
206 // With compressed oops the most super class with nonstatic fields would |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
207 // be the owner of fields embedded in the header. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
208 while (instanceKlass::cast(super_klass)->has_nonstatic_fields() && |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
209 instanceKlass::cast(super_klass)->contains_field_offset(offset)) { |
| 0 | 210 field_klass = super_klass; // super contains the field also |
| 211 super_klass = Klass::cast(field_klass)->super(); | |
| 212 } | |
| 213 debug_only(No_Safepoint_Verifier nosafepoint;) | |
| 214 uintptr_t klass_hash = field_klass->identity_hash(); | |
| 215 return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place; | |
| 216 } else { | |
| 217 #if 0 | |
| 218 #ifndef PRODUCT | |
| 219 { | |
| 220 ResourceMark rm; | |
| 221 warning("VerifyJNIFields: long offset %d in %s", offset, Klass::cast(k)->external_name()); | |
| 222 } | |
| 223 #endif | |
| 224 #endif | |
| 225 return 0; | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 bool jfieldIDWorkaround::klass_hash_ok(klassOop k, jfieldID id) { | |
| 230 uintptr_t as_uint = (uintptr_t) id; | |
| 231 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask; | |
| 232 do { | |
| 233 debug_only(No_Safepoint_Verifier nosafepoint;) | |
| 234 // Could use a non-blocking query for identity_hash here... | |
| 235 if ((k->identity_hash() & klass_mask) == klass_hash) | |
| 236 return true; | |
| 237 k = Klass::cast(k)->super(); | |
| 238 } while (k != NULL); | |
| 239 return false; | |
| 240 } | |
| 241 | |
| 242 void jfieldIDWorkaround::verify_instance_jfieldID(klassOop k, jfieldID id) { | |
| 243 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" ); | |
| 244 uintptr_t as_uint = (uintptr_t) id; | |
| 245 intptr_t offset = raw_instance_offset(id); | |
| 246 if (VerifyJNIFields) { | |
| 247 if (is_checked_jfieldID(id)) { | |
| 248 guarantee(klass_hash_ok(k, id), | |
| 249 "Bug in native code: jfieldID class must match object"); | |
| 250 } else { | |
| 251 #if 0 | |
| 252 #ifndef PRODUCT | |
| 253 if (Verbose) { | |
| 254 ResourceMark rm; | |
| 255 warning("VerifyJNIFields: unverified offset %d for %s", offset, Klass::cast(k)->external_name()); | |
| 256 } | |
| 257 #endif | |
| 258 #endif | |
| 259 } | |
| 260 } | |
| 261 guarantee(instanceKlass::cast(k)->contains_field_offset(offset), | |
| 262 "Bug in native code: jfieldID offset must address interior of object"); | |
| 263 } | |
| 264 | |
| 265 // Pick a reasonable higher bound for local capacity requested | |
| 266 // for EnsureLocalCapacity and PushLocalFrame. We don't want it too | |
| 267 // high because a test (or very unusual application) may try to allocate | |
| 268 // that many handles and run out of swap space. An implementation is | |
| 269 // permitted to allocate more handles than the ensured capacity, so this | |
| 270 // value is set high enough to prevent compatibility problems. | |
| 271 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K; | |
| 272 | |
| 273 | |
| 274 // Wrapper to trace JNI functions | |
| 275 | |
| 276 #ifdef ASSERT | |
| 277 Histogram* JNIHistogram; | |
| 278 static volatile jint JNIHistogram_lock = 0; | |
| 279 | |
| 280 class JNITraceWrapper : public StackObj { | |
| 281 public: | |
| 282 JNITraceWrapper(const char* format, ...) { | |
| 283 if (TraceJNICalls) { | |
| 284 va_list ap; | |
| 285 va_start(ap, format); | |
| 286 tty->print("JNI "); | |
| 287 tty->vprint_cr(format, ap); | |
| 288 va_end(ap); | |
| 289 } | |
| 290 } | |
| 291 }; | |
| 292 | |
| 293 class JNIHistogramElement : public HistogramElement { | |
| 294 public: | |
| 295 JNIHistogramElement(const char* name); | |
| 296 }; | |
| 297 | |
| 298 JNIHistogramElement::JNIHistogramElement(const char* elementName) { | |
| 299 _name = elementName; | |
| 300 uintx count = 0; | |
| 301 | |
| 302 while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) { | |
| 303 while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) { | |
| 304 count +=1; | |
| 305 if ( (WarnOnStalledSpinLock > 0) | |
| 306 && (count % WarnOnStalledSpinLock == 0)) { | |
| 307 warning("JNIHistogram_lock seems to be stalled"); | |
| 308 } | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 | |
| 313 if(JNIHistogram == NULL) | |
| 314 JNIHistogram = new Histogram("JNI Call Counts",100); | |
| 315 | |
| 316 JNIHistogram->add_element(this); | |
| 317 Atomic::dec(&JNIHistogram_lock); | |
| 318 } | |
| 319 | |
| 320 #define JNICountWrapper(arg) \ | |
| 321 static JNIHistogramElement* e = new JNIHistogramElement(arg); \ | |
| 322 /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \ | |
| 323 if (e != NULL) e->increment_count() | |
| 324 #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg) | |
| 325 #else | |
| 326 #define JNIWrapper(arg) | |
| 327 #endif | |
| 328 | |
| 329 | |
| 330 // Implementation of JNI entries | |
| 331 | |
| 332 DT_RETURN_MARK_DECL(DefineClass, jclass); | |
| 333 | |
| 334 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef, | |
| 335 const jbyte *buf, jsize bufLen)) | |
| 336 JNIWrapper("DefineClass"); | |
| 337 | |
| 338 DTRACE_PROBE5(hotspot_jni, DefineClass__entry, | |
| 339 env, name, loaderRef, buf, bufLen); | |
| 340 jclass cls = NULL; | |
| 341 DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls); | |
| 342 | |
| 343 // Since exceptions can be thrown, class initialization can take place | |
| 344 // if name is NULL no check for class name in .class stream has to be made. | |
| 345 if (name != NULL) { | |
| 346 const int str_len = (int)strlen(name); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
347 if (str_len > Symbol::max_length()) { |
| 0 | 348 // It's impossible to create this class; the name cannot fit |
| 349 // into the constant pool. | |
| 350 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); | |
| 351 } | |
| 352 } | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
353 TempNewSymbol class_name = SymbolTable::new_symbol(name, THREAD); |
| 0 | 354 |
| 355 ResourceMark rm(THREAD); | |
| 356 ClassFileStream st((u1*) buf, bufLen, NULL); | |
| 357 Handle class_loader (THREAD, JNIHandles::resolve(loaderRef)); | |
| 358 | |
| 359 if (UsePerfData && !class_loader.is_null()) { | |
| 360 // check whether the current caller thread holds the lock or not. | |
| 361 // If not, increment the corresponding counter | |
| 362 if (ObjectSynchronizer:: | |
| 363 query_lock_ownership((JavaThread*)THREAD, class_loader) != | |
| 364 ObjectSynchronizer::owner_self) { | |
| 365 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc(); | |
| 366 } | |
| 367 } | |
| 368 klassOop k = SystemDictionary::resolve_from_stream(class_name, class_loader, | |
|
973
ad6585fd4087
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
657
diff
changeset
|
369 Handle(), &st, true, |
|
ad6585fd4087
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
657
diff
changeset
|
370 CHECK_NULL); |
| 0 | 371 |
|
657
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
372 if (TraceClassResolution && k != NULL) { |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
373 trace_class_resolution(k); |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
374 } |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
375 |
| 0 | 376 cls = (jclass)JNIHandles::make_local( |
| 377 env, Klass::cast(k)->java_mirror()); | |
| 378 return cls; | |
| 379 JNI_END | |
| 380 | |
| 381 | |
| 382 | |
| 383 static bool first_time_FindClass = true; | |
| 384 | |
| 385 DT_RETURN_MARK_DECL(FindClass, jclass); | |
| 386 | |
| 387 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name)) | |
| 388 JNIWrapper("FindClass"); | |
| 389 DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name); | |
| 390 | |
| 391 jclass result = NULL; | |
| 392 DT_RETURN_MARK(FindClass, jclass, (const jclass&)result); | |
| 393 | |
| 394 // Remember if we are the first invocation of jni_FindClass | |
| 395 bool first_time = first_time_FindClass; | |
| 396 first_time_FindClass = false; | |
| 397 | |
| 398 // Sanity check the name: it cannot be null or larger than the maximum size | |
| 399 // name we can fit in the constant pool. | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
400 if (name == NULL || (int)strlen(name) > Symbol::max_length()) { |
| 0 | 401 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); |
| 402 } | |
| 403 | |
| 404 //%note jni_3 | |
| 405 Handle loader; | |
| 406 Handle protection_domain; | |
| 407 // Find calling class | |
| 408 instanceKlassHandle k (THREAD, thread->security_get_caller_class(0)); | |
| 409 if (k.not_null()) { | |
| 410 loader = Handle(THREAD, k->class_loader()); | |
| 411 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed | |
| 412 // in the correct class context. | |
| 413 if (loader.is_null() && | |
| 414 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) { | |
| 415 JavaValue result(T_OBJECT); | |
| 416 JavaCalls::call_static(&result, k, | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
417 vmSymbols::getFromClass_name(), |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
418 vmSymbols::void_class_signature(), |
| 0 | 419 thread); |
| 420 if (HAS_PENDING_EXCEPTION) { | |
| 421 Handle ex(thread, thread->pending_exception()); | |
| 422 CLEAR_PENDING_EXCEPTION; | |
| 423 THROW_HANDLE_0(ex); | |
| 424 } | |
| 425 oop mirror = (oop) result.get_jobject(); | |
| 426 loader = Handle(THREAD, | |
| 427 instanceKlass::cast(java_lang_Class::as_klassOop(mirror))->class_loader()); | |
| 428 protection_domain = Handle(THREAD, | |
| 429 instanceKlass::cast(java_lang_Class::as_klassOop(mirror))->protection_domain()); | |
| 430 } | |
| 431 } else { | |
| 432 // We call ClassLoader.getSystemClassLoader to obtain the system class loader. | |
| 433 loader = Handle(THREAD, SystemDictionary::java_system_loader()); | |
| 434 } | |
| 435 | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
436 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); |
| 0 | 437 result = find_class_from_class_loader(env, sym, true, loader, |
| 438 protection_domain, true, thread); | |
| 439 | |
|
657
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
440 if (TraceClassResolution && result != NULL) { |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
441 trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result))); |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
442 } |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
443 |
| 0 | 444 // If we were the first invocation of jni_FindClass, we enable compilation again |
| 445 // rather than just allowing invocation counter to overflow and decay. | |
| 446 // Controlled by flag DelayCompilationDuringStartup. | |
| 447 if (first_time && !CompileTheWorld) | |
| 448 CompilationPolicy::completed_vm_startup(); | |
| 449 | |
| 450 return result; | |
| 451 JNI_END | |
| 452 | |
| 453 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID); | |
| 454 | |
| 455 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method)) | |
| 456 JNIWrapper("FromReflectedMethod"); | |
| 457 DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method); | |
| 458 jmethodID ret = NULL; | |
| 459 DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret); | |
| 460 | |
| 461 // method is a handle to a java.lang.reflect.Method object | |
| 462 oop reflected = JNIHandles::resolve_non_null(method); | |
| 463 oop mirror = NULL; | |
| 464 int slot = 0; | |
| 465 | |
| 1142 | 466 if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) { |
| 0 | 467 mirror = java_lang_reflect_Constructor::clazz(reflected); |
| 468 slot = java_lang_reflect_Constructor::slot(reflected); | |
| 469 } else { | |
| 1142 | 470 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type"); |
| 0 | 471 mirror = java_lang_reflect_Method::clazz(reflected); |
| 472 slot = java_lang_reflect_Method::slot(reflected); | |
| 473 } | |
| 474 klassOop k = java_lang_Class::as_klassOop(mirror); | |
| 475 | |
| 476 KlassHandle k1(THREAD, k); | |
| 477 // Make sure class is initialized before handing id's out to methods | |
| 478 Klass::cast(k1())->initialize(CHECK_NULL); | |
| 479 methodOop m = instanceKlass::cast(k1())->method_with_idnum(slot); | |
| 480 ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted | |
| 481 return ret; | |
| 482 JNI_END | |
| 483 | |
| 484 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID); | |
| 485 | |
| 486 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field)) | |
| 487 JNIWrapper("FromReflectedField"); | |
| 488 DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field); | |
| 489 jfieldID ret = NULL; | |
| 490 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret); | |
| 491 | |
| 492 // field is a handle to a java.lang.reflect.Field object | |
| 493 oop reflected = JNIHandles::resolve_non_null(field); | |
| 494 oop mirror = java_lang_reflect_Field::clazz(reflected); | |
| 495 klassOop k = java_lang_Class::as_klassOop(mirror); | |
| 496 int slot = java_lang_reflect_Field::slot(reflected); | |
| 497 int modifiers = java_lang_reflect_Field::modifiers(reflected); | |
| 498 | |
| 499 KlassHandle k1(THREAD, k); | |
| 500 // Make sure class is initialized before handing id's out to fields | |
| 501 Klass::cast(k1())->initialize(CHECK_NULL); | |
| 502 | |
| 503 // First check if this is a static field | |
| 504 if (modifiers & JVM_ACC_STATIC) { | |
| 505 intptr_t offset = instanceKlass::cast(k1())->offset_from_fields( slot ); | |
| 506 JNIid* id = instanceKlass::cast(k1())->jni_id_for(offset); | |
| 507 assert(id != NULL, "corrupt Field object"); | |
| 508 debug_only(id->set_is_static_field_id();) | |
| 509 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the klassOop | |
| 510 ret = jfieldIDWorkaround::to_static_jfieldID(id); | |
| 511 return ret; | |
| 512 } | |
| 513 | |
| 514 // The slot is the index of the field description in the field-array | |
| 515 // The jfieldID is the offset of the field within the object | |
| 516 // It may also have hash bits for k, if VerifyJNIFields is turned on. | |
| 517 intptr_t offset = instanceKlass::cast(k1())->offset_from_fields( slot ); | |
| 518 assert(instanceKlass::cast(k1())->contains_field_offset(offset), "stay within object"); | |
| 519 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset); | |
| 520 return ret; | |
| 521 JNI_END | |
| 522 | |
| 523 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject); | |
| 524 | |
| 525 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic)) | |
| 526 JNIWrapper("ToReflectedMethod"); | |
| 527 DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic); | |
| 528 jobject ret = NULL; | |
| 529 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret); | |
| 530 | |
| 531 methodHandle m (THREAD, JNIHandles::resolve_jmethod_id(method_id)); | |
| 532 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match"); | |
| 533 oop reflection_method; | |
| 534 if (m->is_initializer()) { | |
| 535 reflection_method = Reflection::new_constructor(m, CHECK_NULL); | |
| 536 } else { | |
| 537 reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL); | |
| 538 } | |
| 539 ret = JNIHandles::make_local(env, reflection_method); | |
| 540 return ret; | |
| 541 JNI_END | |
| 542 | |
| 543 DT_RETURN_MARK_DECL(GetSuperclass, jclass); | |
| 544 | |
| 545 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub)) | |
| 546 JNIWrapper("GetSuperclass"); | |
| 547 DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub); | |
| 548 jclass obj = NULL; | |
| 549 DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj); | |
| 550 | |
| 551 oop mirror = JNIHandles::resolve_non_null(sub); | |
| 552 // primitive classes return NULL | |
| 553 if (java_lang_Class::is_primitive(mirror)) return NULL; | |
| 554 | |
| 555 // Rules of Class.getSuperClass as implemented by KLass::java_super: | |
| 556 // arrays return Object | |
| 557 // interfaces return NULL | |
| 558 // proper classes return Klass::super() | |
| 559 klassOop k = java_lang_Class::as_klassOop(mirror); | |
| 560 if (Klass::cast(k)->is_interface()) return NULL; | |
| 561 | |
| 562 // return mirror for superclass | |
| 563 klassOop super = Klass::cast(k)->java_super(); | |
| 564 // super2 is the value computed by the compiler's getSuperClass intrinsic: | |
| 565 debug_only(klassOop super2 = ( Klass::cast(k)->oop_is_javaArray() | |
| 1142 | 566 ? SystemDictionary::Object_klass() |
| 0 | 567 : Klass::cast(k)->super() ) ); |
| 568 assert(super == super2, | |
| 569 "java_super computation depends on interface, array, other super"); | |
| 570 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(Klass::cast(super)->java_mirror()); | |
| 571 return obj; | |
| 572 JNI_END | |
| 573 | |
| 574 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super)) | |
| 575 JNIWrapper("IsSubclassOf"); | |
| 576 DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super); | |
| 577 oop sub_mirror = JNIHandles::resolve_non_null(sub); | |
| 578 oop super_mirror = JNIHandles::resolve_non_null(super); | |
| 579 if (java_lang_Class::is_primitive(sub_mirror) || | |
| 580 java_lang_Class::is_primitive(super_mirror)) { | |
| 581 jboolean ret = (sub_mirror == super_mirror); | |
| 582 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret); | |
| 583 return ret; | |
| 584 } | |
| 585 klassOop sub_klass = java_lang_Class::as_klassOop(sub_mirror); | |
| 586 klassOop super_klass = java_lang_Class::as_klassOop(super_mirror); | |
| 587 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom"); | |
| 588 jboolean ret = Klass::cast(sub_klass)->is_subtype_of(super_klass) ? | |
| 589 JNI_TRUE : JNI_FALSE; | |
| 590 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret); | |
| 591 return ret; | |
| 592 JNI_END | |
| 593 | |
| 594 DT_RETURN_MARK_DECL(Throw, jint); | |
| 595 | |
| 596 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj)) | |
| 597 JNIWrapper("Throw"); | |
| 598 DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj); | |
| 599 jint ret = JNI_OK; | |
| 600 DT_RETURN_MARK(Throw, jint, (const jint&)ret); | |
| 601 | |
| 602 THROW_OOP_(JNIHandles::resolve(obj), JNI_OK); | |
| 603 ShouldNotReachHere(); | |
| 604 JNI_END | |
| 605 | |
| 606 DT_RETURN_MARK_DECL(ThrowNew, jint); | |
| 607 | |
| 608 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message)) | |
| 609 JNIWrapper("ThrowNew"); | |
| 610 DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message); | |
| 611 jint ret = JNI_OK; | |
| 612 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret); | |
| 613 | |
| 614 instanceKlass* k = instanceKlass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz))); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
615 Symbol* name = k->name(); |
| 0 | 616 Handle class_loader (THREAD, k->class_loader()); |
| 617 Handle protection_domain (THREAD, k->protection_domain()); | |
| 618 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK); | |
| 619 ShouldNotReachHere(); | |
| 620 JNI_END | |
| 621 | |
| 622 | |
| 623 // JNI functions only transform a pending async exception to a synchronous | |
| 624 // exception in ExceptionOccurred and ExceptionCheck calls, since | |
| 625 // delivering an async exception in other places won't change the native | |
| 626 // code's control flow and would be harmful when native code further calls | |
| 627 // JNI functions with a pending exception. Async exception is also checked | |
| 628 // during the call, so ExceptionOccurred/ExceptionCheck won't return | |
| 629 // false but deliver the async exception at the very end during | |
| 630 // state transition. | |
| 631 | |
| 632 static void jni_check_async_exceptions(JavaThread *thread) { | |
| 633 assert(thread == Thread::current(), "must be itself"); | |
| 634 thread->check_and_handle_async_exceptions(); | |
| 635 } | |
| 636 | |
| 637 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env)) | |
| 638 JNIWrapper("ExceptionOccurred"); | |
| 639 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env); | |
| 640 jni_check_async_exceptions(thread); | |
| 641 oop exception = thread->pending_exception(); | |
| 642 jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception); | |
| 643 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret); | |
| 644 return ret; | |
| 645 JNI_END | |
| 646 | |
| 647 | |
| 648 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env)) | |
| 649 JNIWrapper("ExceptionDescribe"); | |
| 650 DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env); | |
| 651 if (thread->has_pending_exception()) { | |
| 652 Handle ex(thread, thread->pending_exception()); | |
| 653 thread->clear_pending_exception(); | |
| 1142 | 654 if (ex->is_a(SystemDictionary::ThreadDeath_klass())) { |
| 0 | 655 // Don't print anything if we are being killed. |
| 656 } else { | |
| 657 jio_fprintf(defaultStream::error_stream(), "Exception "); | |
| 658 if (thread != NULL && thread->threadObj() != NULL) { | |
| 659 ResourceMark rm(THREAD); | |
| 660 jio_fprintf(defaultStream::error_stream(), | |
| 661 "in thread \"%s\" ", thread->get_thread_name()); | |
| 662 } | |
| 1142 | 663 if (ex->is_a(SystemDictionary::Throwable_klass())) { |
| 0 | 664 JavaValue result(T_VOID); |
| 665 JavaCalls::call_virtual(&result, | |
| 666 ex, | |
| 667 KlassHandle(THREAD, | |
| 1142 | 668 SystemDictionary::Throwable_klass()), |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
669 vmSymbols::printStackTrace_name(), |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
670 vmSymbols::void_method_signature(), |
| 0 | 671 THREAD); |
| 672 // If an exception is thrown in the call it gets thrown away. Not much | |
| 673 // we can do with it. The native code that calls this, does not check | |
| 674 // for the exception - hence, it might still be in the thread when DestroyVM gets | |
| 675 // called, potentially causing a few asserts to trigger - since no pending exception | |
| 676 // is expected. | |
| 677 CLEAR_PENDING_EXCEPTION; | |
| 678 } else { | |
| 679 ResourceMark rm(THREAD); | |
| 680 jio_fprintf(defaultStream::error_stream(), | |
| 681 ". Uncaught exception of type %s.", | |
| 682 Klass::cast(ex->klass())->external_name()); | |
| 683 } | |
| 684 } | |
| 685 } | |
| 686 DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return); | |
| 687 JNI_END | |
| 688 | |
| 689 | |
| 690 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env)) | |
| 691 JNIWrapper("ExceptionClear"); | |
| 692 DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env); | |
| 693 | |
| 694 // The jni code might be using this API to clear java thrown exception. | |
| 695 // So just mark jvmti thread exception state as exception caught. | |
| 696 JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state(); | |
| 697 if (state != NULL && state->is_exception_detected()) { | |
| 698 state->set_exception_caught(); | |
| 699 } | |
| 700 thread->clear_pending_exception(); | |
| 701 DTRACE_PROBE(hotspot_jni, ExceptionClear__return); | |
| 702 JNI_END | |
| 703 | |
| 704 | |
| 705 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg)) | |
| 706 JNIWrapper("FatalError"); | |
| 707 DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg); | |
| 708 tty->print_cr("FATAL ERROR in native method: %s", msg); | |
| 709 thread->print_stack(); | |
|
227
8d852b81e775
6694099: Hotspot vm_exit_out_of_memory should dump core
poonam
parents:
113
diff
changeset
|
710 os::abort(); // Dump core and abort |
| 0 | 711 JNI_END |
| 712 | |
| 713 | |
| 714 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity)) | |
| 715 JNIWrapper("PushLocalFrame"); | |
| 716 DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity); | |
| 717 //%note jni_11 | |
| 718 if (capacity < 0 && capacity > MAX_REASONABLE_LOCAL_CAPACITY) { | |
| 719 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR); | |
| 720 return JNI_ERR; | |
| 721 } | |
| 722 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 723 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
| 724 assert(new_handles != NULL, "should not be NULL"); | |
| 725 new_handles->set_pop_frame_link(old_handles); | |
| 726 thread->set_active_handles(new_handles); | |
| 727 jint ret = JNI_OK; | |
| 728 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret); | |
| 729 return ret; | |
| 730 JNI_END | |
| 731 | |
| 732 | |
| 733 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result)) | |
| 734 JNIWrapper("PopLocalFrame"); | |
| 735 DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result); | |
| 736 //%note jni_11 | |
| 737 Handle result_handle(thread, JNIHandles::resolve(result)); | |
| 738 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 739 JNIHandleBlock* new_handles = old_handles->pop_frame_link(); | |
| 740 if (new_handles != NULL) { | |
| 741 // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL. | |
| 742 // This way code will still work if PopLocalFrame is called without a corresponding | |
| 743 // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise | |
| 744 // the release_block call will release the blocks. | |
| 745 thread->set_active_handles(new_handles); | |
| 746 old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below | |
| 747 JNIHandleBlock::release_block(old_handles, thread); // may block | |
| 748 result = JNIHandles::make_local(thread, result_handle()); | |
| 749 } | |
| 750 DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result); | |
| 751 return result; | |
| 752 JNI_END | |
| 753 | |
| 754 | |
| 755 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref)) | |
| 756 JNIWrapper("NewGlobalRef"); | |
| 757 DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref); | |
| 758 Handle ref_handle(thread, JNIHandles::resolve(ref)); | |
| 759 jobject ret = JNIHandles::make_global(ref_handle); | |
| 760 DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret); | |
| 761 return ret; | |
| 762 JNI_END | |
| 763 | |
| 764 // Must be JNI_ENTRY (with HandleMark) | |
| 765 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref)) | |
| 766 JNIWrapper("DeleteGlobalRef"); | |
| 767 DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref); | |
| 768 JNIHandles::destroy_global(ref); | |
| 769 DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return); | |
| 770 JNI_END | |
| 771 | |
| 772 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj)) | |
| 773 JNIWrapper("DeleteLocalRef"); | |
| 774 DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj); | |
| 775 JNIHandles::destroy_local(obj); | |
| 776 DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return); | |
| 777 JNI_END | |
| 778 | |
| 779 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2)) | |
| 780 JNIWrapper("IsSameObject"); | |
| 781 DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2); | |
| 782 oop a = JNIHandles::resolve(r1); | |
| 783 oop b = JNIHandles::resolve(r2); | |
| 784 jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE; | |
| 785 DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret); | |
| 786 return ret; | |
| 787 JNI_END | |
| 788 | |
| 789 | |
| 790 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref)) | |
| 791 JNIWrapper("NewLocalRef"); | |
| 792 DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref); | |
| 793 jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref)); | |
| 794 DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret); | |
| 795 return ret; | |
| 796 JNI_END | |
| 797 | |
| 798 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity)) | |
| 799 JNIWrapper("EnsureLocalCapacity"); | |
| 800 DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity); | |
| 801 jint ret; | |
| 802 if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) { | |
| 803 ret = JNI_OK; | |
| 804 } else { | |
| 805 ret = JNI_ERR; | |
| 806 } | |
| 807 DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret); | |
| 808 return ret; | |
| 809 JNI_END | |
| 810 | |
| 811 // Return the Handle Type | |
| 812 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj)) | |
| 813 JNIWrapper("GetObjectRefType"); | |
| 814 DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj); | |
| 815 jobjectRefType ret; | |
| 816 if (JNIHandles::is_local_handle(thread, obj) || | |
| 817 JNIHandles::is_frame_handle(thread, obj)) | |
| 818 ret = JNILocalRefType; | |
| 819 else if (JNIHandles::is_global_handle(obj)) | |
| 820 ret = JNIGlobalRefType; | |
| 821 else if (JNIHandles::is_weak_global_handle(obj)) | |
| 822 ret = JNIWeakGlobalRefType; | |
| 823 else | |
| 824 ret = JNIInvalidRefType; | |
| 825 DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret); | |
| 826 return ret; | |
| 827 JNI_END | |
| 828 | |
| 829 | |
| 830 class JNI_ArgumentPusher : public SignatureIterator { | |
| 831 protected: | |
| 832 JavaCallArguments* _arguments; | |
| 833 | |
| 834 virtual void get_bool () = 0; | |
| 835 virtual void get_char () = 0; | |
| 836 virtual void get_short () = 0; | |
| 837 virtual void get_byte () = 0; | |
| 838 virtual void get_int () = 0; | |
| 839 virtual void get_long () = 0; | |
| 840 virtual void get_float () = 0; | |
| 841 virtual void get_double () = 0; | |
| 842 virtual void get_object () = 0; | |
| 843 | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
844 JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) { |
| 0 | 845 this->_return_type = T_ILLEGAL; |
| 846 _arguments = NULL; | |
| 847 } | |
| 848 | |
| 849 public: | |
| 850 virtual void iterate( uint64_t fingerprint ) = 0; | |
| 851 | |
| 852 void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; } | |
| 853 | |
| 854 inline void do_bool() { if (!is_return_type()) get_bool(); } | |
| 855 inline void do_char() { if (!is_return_type()) get_char(); } | |
| 856 inline void do_short() { if (!is_return_type()) get_short(); } | |
| 857 inline void do_byte() { if (!is_return_type()) get_byte(); } | |
| 858 inline void do_int() { if (!is_return_type()) get_int(); } | |
| 859 inline void do_long() { if (!is_return_type()) get_long(); } | |
| 860 inline void do_float() { if (!is_return_type()) get_float(); } | |
| 861 inline void do_double() { if (!is_return_type()) get_double(); } | |
| 862 inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); } | |
| 863 inline void do_array(int begin, int end) { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array | |
| 864 inline void do_void() { } | |
| 865 | |
| 866 JavaCallArguments* arguments() { return _arguments; } | |
| 867 void push_receiver(Handle h) { _arguments->push_oop(h); } | |
| 868 }; | |
| 869 | |
| 870 | |
| 871 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher { | |
| 872 protected: | |
| 873 va_list _ap; | |
| 874 | |
| 875 inline void get_bool() { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg | |
| 876 inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg | |
| 877 inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg | |
| 878 inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg | |
| 879 inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); } | |
| 880 | |
| 881 // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests | |
| 882 | |
| 883 inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); } | |
| 884 inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg | |
| 885 inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); } | |
| 886 inline void get_object() { jobject l = va_arg(_ap, jobject); | |
| 887 _arguments->push_oop(Handle((oop *)l, false)); } | |
| 888 | |
| 889 inline void set_ap(va_list rap) { | |
| 890 #ifdef va_copy | |
| 891 va_copy(_ap, rap); | |
| 892 #elif defined (__va_copy) | |
| 893 __va_copy(_ap, rap); | |
| 894 #else | |
| 895 _ap = rap; | |
| 896 #endif | |
| 897 } | |
| 898 | |
| 899 public: | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
900 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap) |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
901 : JNI_ArgumentPusher(signature) { |
| 0 | 902 set_ap(rap); |
| 903 } | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
904 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap) |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
905 : JNI_ArgumentPusher(JNIHandles::resolve_jmethod_id(method_id)->signature()) { |
| 0 | 906 set_ap(rap); |
| 907 } | |
| 908 | |
| 909 // Optimized path if we have the bitvector form of signature | |
| 910 void iterate( uint64_t fingerprint ) { | |
| 911 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments | |
| 912 else { | |
| 913 _return_type = (BasicType)((fingerprint >> static_feature_size) & | |
| 914 result_feature_mask); | |
| 915 | |
| 916 assert(fingerprint, "Fingerprint should not be 0"); | |
| 917 fingerprint = fingerprint >> (static_feature_size + result_feature_size); | |
| 918 while ( 1 ) { | |
| 919 switch ( fingerprint & parameter_feature_mask ) { | |
| 920 case bool_parm: | |
| 921 case char_parm: | |
| 922 case short_parm: | |
| 923 case byte_parm: | |
| 924 case int_parm: | |
| 925 get_int(); | |
| 926 break; | |
| 927 case obj_parm: | |
| 928 get_object(); | |
| 929 break; | |
| 930 case long_parm: | |
| 931 get_long(); | |
| 932 break; | |
| 933 case float_parm: | |
| 934 get_float(); | |
| 935 break; | |
| 936 case double_parm: | |
| 937 get_double(); | |
| 938 break; | |
| 939 case done_parm: | |
| 940 return; | |
| 941 break; | |
| 942 default: | |
| 943 ShouldNotReachHere(); | |
| 944 break; | |
| 945 } | |
| 946 fingerprint >>= parameter_feature_size; | |
| 947 } | |
| 948 } | |
| 949 } | |
| 950 }; | |
| 951 | |
| 952 | |
| 953 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher { | |
| 954 protected: | |
| 955 const jvalue *_ap; | |
| 956 | |
| 957 inline void get_bool() { _arguments->push_int((jint)(_ap++)->z); } | |
| 958 inline void get_char() { _arguments->push_int((jint)(_ap++)->c); } | |
| 959 inline void get_short() { _arguments->push_int((jint)(_ap++)->s); } | |
| 960 inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); } | |
| 961 inline void get_int() { _arguments->push_int((jint)(_ap++)->i); } | |
| 962 | |
| 963 inline void get_long() { _arguments->push_long((_ap++)->j); } | |
| 964 inline void get_float() { _arguments->push_float((_ap++)->f); } | |
| 965 inline void get_double() { _arguments->push_double((_ap++)->d);} | |
| 966 inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); } | |
| 967 | |
| 968 inline void set_ap(const jvalue *rap) { _ap = rap; } | |
| 969 | |
| 970 public: | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
971 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap) |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
972 : JNI_ArgumentPusher(signature) { |
| 0 | 973 set_ap(rap); |
| 974 } | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
975 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap) |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
976 : JNI_ArgumentPusher(JNIHandles::resolve_jmethod_id(method_id)->signature()) { |
| 0 | 977 set_ap(rap); |
| 978 } | |
| 979 | |
| 980 // Optimized path if we have the bitvector form of signature | |
| 981 void iterate( uint64_t fingerprint ) { | |
| 982 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments | |
| 983 else { | |
| 984 _return_type = (BasicType)((fingerprint >> static_feature_size) & | |
| 985 result_feature_mask); | |
| 986 assert(fingerprint, "Fingerprint should not be 0"); | |
| 987 fingerprint = fingerprint >> (static_feature_size + result_feature_size); | |
| 988 while ( 1 ) { | |
| 989 switch ( fingerprint & parameter_feature_mask ) { | |
| 990 case bool_parm: | |
| 991 get_bool(); | |
| 992 break; | |
| 993 case char_parm: | |
| 994 get_char(); | |
| 995 break; | |
| 996 case short_parm: | |
| 997 get_short(); | |
| 998 break; | |
| 999 case byte_parm: | |
| 1000 get_byte(); | |
| 1001 break; | |
| 1002 case int_parm: | |
| 1003 get_int(); | |
| 1004 break; | |
| 1005 case obj_parm: | |
| 1006 get_object(); | |
| 1007 break; | |
| 1008 case long_parm: | |
| 1009 get_long(); | |
| 1010 break; | |
| 1011 case float_parm: | |
| 1012 get_float(); | |
| 1013 break; | |
| 1014 case double_parm: | |
| 1015 get_double(); | |
| 1016 break; | |
| 1017 case done_parm: | |
| 1018 return; | |
| 1019 break; | |
| 1020 default: | |
| 1021 ShouldNotReachHere(); | |
| 1022 break; | |
| 1023 } | |
| 1024 fingerprint >>= parameter_feature_size; | |
| 1025 } | |
| 1026 } | |
| 1027 } | |
| 1028 }; | |
| 1029 | |
| 1030 | |
| 1031 enum JNICallType { | |
| 1032 JNI_STATIC, | |
| 1033 JNI_VIRTUAL, | |
| 1034 JNI_NONVIRTUAL | |
| 1035 }; | |
| 1036 | |
| 1037 static methodHandle jni_resolve_interface_call(Handle recv, methodHandle method, TRAPS) { | |
| 1038 assert(!method.is_null() , "method should not be null"); | |
| 1039 | |
| 1040 KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc) | |
| 1041 if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass()); | |
| 1042 KlassHandle spec_klass (THREAD, method->method_holder()); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1043 Symbol* name = method->name(); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1044 Symbol* signature = method->signature(); |
| 0 | 1045 CallInfo info; |
| 1046 LinkResolver::resolve_interface_call(info, recv, recv_klass, spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle())); | |
| 1047 return info.selected_method(); | |
| 1048 } | |
| 1049 | |
| 1050 static methodHandle jni_resolve_virtual_call(Handle recv, methodHandle method, TRAPS) { | |
| 1051 assert(!method.is_null() , "method should not be null"); | |
| 1052 | |
| 1053 KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc) | |
| 1054 if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass()); | |
| 1055 KlassHandle spec_klass (THREAD, method->method_holder()); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1056 Symbol* name = method->name(); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1057 Symbol* signature = method->signature(); |
| 0 | 1058 CallInfo info; |
| 1059 LinkResolver::resolve_virtual_call(info, recv, recv_klass, spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle())); | |
| 1060 return info.selected_method(); | |
| 1061 } | |
| 1062 | |
| 1063 | |
| 1064 | |
| 1065 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { | |
| 1066 methodHandle method(THREAD, JNIHandles::resolve_jmethod_id(method_id)); | |
| 1067 | |
| 1068 // Create object to hold arguments for the JavaCall, and associate it with | |
| 1069 // the jni parser | |
| 1070 ResourceMark rm(THREAD); | |
| 1071 int number_of_parameters = method->size_of_parameters(); | |
| 1072 JavaCallArguments java_args(number_of_parameters); | |
| 1073 args->set_java_argument_object(&java_args); | |
| 1074 | |
| 1075 assert(method->is_static(), "method should be static"); | |
| 1076 | |
| 1077 // Fill out JavaCallArguments object | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1078 args->iterate( Fingerprinter(method).fingerprint() ); |
| 0 | 1079 // Initialize result type |
| 1080 result->set_type(args->get_ret_type()); | |
| 1081 | |
| 1082 // Invoke the method. Result is returned as oop. | |
| 1083 JavaCalls::call(result, method, &java_args, CHECK); | |
| 1084 | |
| 1085 // Convert result | |
| 1086 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { | |
| 1087 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); | |
| 1088 } | |
| 1089 } | |
| 1090 | |
| 1091 | |
| 1092 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { | |
| 1093 oop recv = JNIHandles::resolve(receiver); | |
| 1094 if (recv == NULL) { | |
| 1095 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 1096 } | |
| 1097 Handle h_recv(THREAD, recv); | |
| 1098 | |
| 1099 int number_of_parameters; | |
| 1100 methodOop selected_method; | |
| 1101 { | |
| 1102 methodOop m = JNIHandles::resolve_jmethod_id(method_id); | |
| 1103 number_of_parameters = m->size_of_parameters(); | |
| 1104 klassOop holder = m->method_holder(); | |
| 1105 if (!(Klass::cast(holder))->is_interface()) { | |
| 1106 // non-interface call -- for that little speed boost, don't handlize | |
| 1107 debug_only(No_Safepoint_Verifier nosafepoint;) | |
| 1108 if (call_type == JNI_VIRTUAL) { | |
| 1109 // jni_GetMethodID makes sure class is linked and initialized | |
| 1110 // so m should have a valid vtable index. | |
| 1111 int vtbl_index = m->vtable_index(); | |
| 1112 if (vtbl_index != methodOopDesc::nonvirtual_vtable_index) { | |
| 1113 klassOop k = h_recv->klass(); | |
| 1114 // k might be an arrayKlassOop but all vtables start at | |
| 1115 // the same place. The cast is to avoid virtual call and assertion. | |
| 1116 instanceKlass *ik = (instanceKlass*)k->klass_part(); | |
| 1117 selected_method = ik->method_at_vtable(vtbl_index); | |
| 1118 } else { | |
| 1119 // final method | |
| 1120 selected_method = m; | |
| 1121 } | |
| 1122 } else { | |
| 1123 // JNI_NONVIRTUAL call | |
| 1124 selected_method = m; | |
| 1125 } | |
| 1126 } else { | |
| 1127 // interface call | |
| 1128 KlassHandle h_holder(THREAD, holder); | |
| 1129 | |
| 1130 int itbl_index = m->cached_itable_index(); | |
| 1131 if (itbl_index == -1) { | |
| 1132 itbl_index = klassItable::compute_itable_index(m); | |
| 1133 m->set_cached_itable_index(itbl_index); | |
| 1134 // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again | |
| 1135 } | |
| 1136 klassOop k = h_recv->klass(); | |
| 1137 selected_method = instanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK); | |
| 1138 } | |
| 1139 } | |
| 1140 | |
| 1141 methodHandle method(THREAD, selected_method); | |
| 1142 | |
| 1143 // Create object to hold arguments for the JavaCall, and associate it with | |
| 1144 // the jni parser | |
| 1145 ResourceMark rm(THREAD); | |
| 1146 JavaCallArguments java_args(number_of_parameters); | |
| 1147 args->set_java_argument_object(&java_args); | |
| 1148 | |
| 1149 // handle arguments | |
| 1150 assert(!method->is_static(), "method should not be static"); | |
| 1151 args->push_receiver(h_recv); // Push jobject handle | |
| 1152 | |
| 1153 // Fill out JavaCallArguments object | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1154 args->iterate( Fingerprinter(method).fingerprint() ); |
| 0 | 1155 // Initialize result type |
| 1156 result->set_type(args->get_ret_type()); | |
| 1157 | |
| 1158 // Invoke the method. Result is returned as oop. | |
| 1159 JavaCalls::call(result, method, &java_args, CHECK); | |
| 1160 | |
| 1161 // Convert result | |
| 1162 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { | |
| 1163 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); | |
| 1164 } | |
| 1165 } | |
| 1166 | |
| 1167 | |
| 1168 static instanceOop alloc_object(jclass clazz, TRAPS) { | |
| 1169 KlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz))); | |
| 1170 Klass::cast(k())->check_valid_for_instantiation(false, CHECK_NULL); | |
| 1171 instanceKlass::cast(k())->initialize(CHECK_NULL); | |
| 1172 instanceOop ih = instanceKlass::cast(k())->allocate_instance(THREAD); | |
| 1173 return ih; | |
| 1174 } | |
| 1175 | |
| 1176 DT_RETURN_MARK_DECL(AllocObject, jobject); | |
| 1177 | |
| 1178 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz)) | |
| 1179 JNIWrapper("AllocObject"); | |
| 1180 | |
| 1181 DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz); | |
| 1182 jobject ret = NULL; | |
| 1183 DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret); | |
| 1184 | |
| 1185 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1186 ret = JNIHandles::make_local(env, i); | |
| 1187 return ret; | |
| 1188 JNI_END | |
| 1189 | |
| 1190 DT_RETURN_MARK_DECL(NewObjectA, jobject); | |
| 1191 | |
| 1192 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args)) | |
| 1193 JNIWrapper("NewObjectA"); | |
| 1194 DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID); | |
| 1195 jobject obj = NULL; | |
| 1196 DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj); | |
| 1197 | |
| 1198 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1199 obj = JNIHandles::make_local(env, i); | |
| 1200 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1201 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 1202 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| 1203 return obj; | |
| 1204 JNI_END | |
| 1205 | |
| 1206 DT_RETURN_MARK_DECL(NewObjectV, jobject); | |
| 1207 | |
| 1208 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args)) | |
| 1209 JNIWrapper("NewObjectV"); | |
| 1210 DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID); | |
| 1211 jobject obj = NULL; | |
| 1212 DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj); | |
| 1213 | |
| 1214 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1215 obj = JNIHandles::make_local(env, i); | |
| 1216 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1217 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1218 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| 1219 return obj; | |
| 1220 JNI_END | |
| 1221 | |
| 1222 DT_RETURN_MARK_DECL(NewObject, jobject); | |
| 1223 | |
| 1224 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...)) | |
| 1225 JNIWrapper("NewObject"); | |
| 1226 DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID); | |
| 1227 jobject obj = NULL; | |
| 1228 DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj); | |
| 1229 | |
| 1230 instanceOop i = alloc_object(clazz, CHECK_NULL); | |
| 1231 obj = JNIHandles::make_local(env, i); | |
| 1232 va_list args; | |
| 1233 va_start(args, methodID); | |
| 1234 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1235 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1236 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| 1237 va_end(args); | |
| 1238 return obj; | |
| 1239 JNI_END | |
| 1240 | |
| 1241 | |
| 1242 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj)) | |
| 1243 JNIWrapper("GetObjectClass"); | |
| 1244 DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj); | |
| 1245 klassOop k = JNIHandles::resolve_non_null(obj)->klass(); | |
| 1246 jclass ret = | |
| 1247 (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror()); | |
| 1248 DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret); | |
| 1249 return ret; | |
| 1250 JNI_END | |
| 1251 | |
| 1252 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz)) | |
| 1253 JNIWrapper("IsInstanceOf"); | |
| 1254 DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz); | |
| 1255 jboolean ret = JNI_TRUE; | |
| 1256 if (obj != NULL) { | |
| 1257 ret = JNI_FALSE; | |
| 1258 klassOop k = java_lang_Class::as_klassOop( | |
| 1259 JNIHandles::resolve_non_null(clazz)); | |
| 1260 if (k != NULL) { | |
| 1261 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE; | |
| 1262 } | |
| 1263 } | |
| 1264 DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret); | |
| 1265 return ret; | |
| 1266 JNI_END | |
| 1267 | |
| 1268 | |
| 1269 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str, | |
| 1270 const char *sig, bool is_static, TRAPS) { | |
| 1271 // %%%% This code should probably just call into a method in the LinkResolver | |
| 1272 // | |
| 1273 // The class should have been loaded (we have an instance of the class | |
| 1274 // passed in) so the method and signature should already be in the symbol | |
| 1275 // table. If they're not there, the method doesn't exist. | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1276 const char *name_to_probe = (name_str == NULL) |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1277 ? vmSymbols::object_initializer_name()->as_C_string() |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1278 : name_str; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1279 TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe)); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1280 TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig)); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1281 |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1282 if (name == NULL || signature == NULL) { |
| 0 | 1283 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); |
| 1284 } | |
| 1285 | |
| 1286 // Throw a NoSuchMethodError exception if we have an instance of a | |
| 1287 // primitive java.lang.Class | |
| 1288 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) { | |
| 1289 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); | |
| 1290 } | |
| 1291 | |
| 1292 KlassHandle klass(THREAD, | |
| 1293 java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz))); | |
| 1294 | |
| 1295 // Make sure class is linked and initialized before handing id's out to | |
| 1296 // methodOops. | |
| 1297 Klass::cast(klass())->initialize(CHECK_NULL); | |
| 1298 | |
| 1299 methodOop m; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1300 if (name == vmSymbols::object_initializer_name() || |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1301 name == vmSymbols::class_initializer_name()) { |
| 0 | 1302 // Never search superclasses for constructors |
| 1303 if (klass->oop_is_instance()) { | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1304 m = instanceKlass::cast(klass())->find_method(name, signature); |
| 0 | 1305 } else { |
| 1306 m = NULL; | |
| 1307 } | |
| 1308 } else { | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1309 m = klass->lookup_method(name, signature); |
| 0 | 1310 // Look up interfaces |
| 1311 if (m == NULL && klass->oop_is_instance()) { | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1312 m = instanceKlass::cast(klass())->lookup_method_in_all_interfaces(name, |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1313 signature); |
| 0 | 1314 } |
| 1315 } | |
| 1316 if (m == NULL || (m->is_static() != is_static)) { | |
| 1317 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); | |
| 1318 } | |
| 1319 return m->jmethod_id(); | |
| 1320 } | |
| 1321 | |
| 1322 | |
| 1323 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz, | |
| 1324 const char *name, const char *sig)) | |
| 1325 JNIWrapper("GetMethodID"); | |
| 1326 DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig); | |
| 1327 jmethodID ret = get_method_id(env, clazz, name, sig, false, thread); | |
| 1328 DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret); | |
| 1329 return ret; | |
| 1330 JNI_END | |
| 1331 | |
| 1332 | |
| 1333 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz, | |
| 1334 const char *name, const char *sig)) | |
| 1335 JNIWrapper("GetStaticMethodID"); | |
| 1336 DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig); | |
| 1337 jmethodID ret = get_method_id(env, clazz, name, sig, true, thread); | |
| 1338 DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret); | |
| 1339 return ret; | |
| 1340 JNI_END | |
| 1341 | |
| 1342 | |
| 1343 | |
| 1344 // | |
| 1345 // Calling Methods | |
| 1346 // | |
| 1347 | |
| 1348 | |
| 1349 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \ | |
| 1350 \ | |
| 1351 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\ | |
| 1352 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\ | |
| 1353 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\ | |
| 1354 \ | |
| 1355 JNI_ENTRY(ResultType, \ | |
| 1356 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \ | |
| 1357 JNIWrapper("Call" XSTR(Result) "Method"); \ | |
| 1358 \ | |
| 1359 DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID);\ | |
| 1360 ResultType ret = 0;\ | |
| 1361 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \ | |
| 1362 (const ResultType&)ret);\ | |
| 1363 \ | |
| 1364 va_list args; \ | |
| 1365 va_start(args, methodID); \ | |
| 1366 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1367 JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| 0 | 1368 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| 1369 va_end(args); \ | |
| 1370 ret = jvalue.get_##ResultType(); \ | |
| 1371 return ret;\ | |
| 1372 JNI_END \ | |
| 1373 \ | |
| 1374 \ | |
| 1375 JNI_ENTRY(ResultType, \ | |
| 1376 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \ | |
| 1377 JNIWrapper("Call" XSTR(Result) "MethodV"); \ | |
| 1378 \ | |
| 1379 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID);\ | |
| 1380 ResultType ret = 0;\ | |
| 1381 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \ | |
| 1382 (const ResultType&)ret);\ | |
| 1383 \ | |
| 1384 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1385 JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| 0 | 1386 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| 1387 ret = jvalue.get_##ResultType(); \ | |
| 1388 return ret;\ | |
| 1389 JNI_END \ | |
| 1390 \ | |
| 1391 \ | |
| 1392 JNI_ENTRY(ResultType, \ | |
| 1393 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \ | |
| 1394 JNIWrapper("Call" XSTR(Result) "MethodA"); \ | |
| 1395 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID);\ | |
| 1396 ResultType ret = 0;\ | |
| 1397 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \ | |
| 1398 (const ResultType&)ret);\ | |
| 1399 \ | |
| 1400 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1401 JNI_ArgumentPusherArray ap(methodID, args); \ |
| 0 | 1402 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| 1403 ret = jvalue.get_##ResultType(); \ | |
| 1404 return ret;\ | |
| 1405 JNI_END | |
| 1406 | |
| 1407 // the runtime type of subword integral basic types is integer | |
| 1408 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN) | |
| 1409 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE) | |
| 1410 DEFINE_CALLMETHOD(jchar, Char, T_CHAR) | |
| 1411 DEFINE_CALLMETHOD(jshort, Short, T_SHORT) | |
| 1412 | |
| 1413 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT) | |
| 1414 DEFINE_CALLMETHOD(jint, Int, T_INT) | |
| 1415 DEFINE_CALLMETHOD(jlong, Long, T_LONG) | |
| 1416 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT) | |
| 1417 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE) | |
| 1418 | |
| 1419 DT_VOID_RETURN_MARK_DECL(CallVoidMethod); | |
| 1420 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV); | |
| 1421 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA); | |
| 1422 | |
| 1423 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...)) | |
| 1424 JNIWrapper("CallVoidMethod"); | |
| 1425 DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID); | |
| 1426 DT_VOID_RETURN_MARK(CallVoidMethod); | |
| 1427 | |
| 1428 va_list args; | |
| 1429 va_start(args, methodID); | |
| 1430 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1431 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1432 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| 1433 va_end(args); | |
| 1434 JNI_END | |
| 1435 | |
| 1436 | |
| 1437 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) | |
| 1438 JNIWrapper("CallVoidMethodV"); | |
| 1439 DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID); | |
| 1440 DT_VOID_RETURN_MARK(CallVoidMethodV); | |
| 1441 | |
| 1442 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1443 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1444 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| 1445 JNI_END | |
| 1446 | |
| 1447 | |
| 1448 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) | |
| 1449 JNIWrapper("CallVoidMethodA"); | |
| 1450 DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID); | |
| 1451 DT_VOID_RETURN_MARK(CallVoidMethodA); | |
| 1452 | |
| 1453 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1454 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 1455 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| 1456 JNI_END | |
| 1457 | |
| 1458 | |
| 1459 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \ | |
| 1460 \ | |
| 1461 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\ | |
| 1462 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\ | |
| 1463 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\ | |
| 1464 \ | |
| 1465 JNI_ENTRY(ResultType, \ | |
| 1466 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \ | |
| 1467 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \ | |
| 1468 \ | |
| 1469 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\ | |
| 1470 ResultType ret;\ | |
| 1471 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \ | |
| 1472 (const ResultType&)ret);\ | |
| 1473 \ | |
| 1474 va_list args; \ | |
| 1475 va_start(args, methodID); \ | |
| 1476 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1477 JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| 0 | 1478 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| 1479 va_end(args); \ | |
| 1480 ret = jvalue.get_##ResultType(); \ | |
| 1481 return ret;\ | |
| 1482 JNI_END \ | |
| 1483 \ | |
| 1484 JNI_ENTRY(ResultType, \ | |
| 1485 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \ | |
| 1486 JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \ | |
| 1487 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\ | |
| 1488 ResultType ret;\ | |
| 1489 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \ | |
| 1490 (const ResultType&)ret);\ | |
| 1491 \ | |
| 1492 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1493 JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| 0 | 1494 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| 1495 ret = jvalue.get_##ResultType(); \ | |
| 1496 return ret;\ | |
| 1497 JNI_END \ | |
| 1498 \ | |
| 1499 JNI_ENTRY(ResultType, \ | |
| 1500 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \ | |
| 1501 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \ | |
| 1502 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\ | |
| 1503 ResultType ret;\ | |
| 1504 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \ | |
| 1505 (const ResultType&)ret);\ | |
| 1506 \ | |
| 1507 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1508 JNI_ArgumentPusherArray ap(methodID, args); \ |
| 0 | 1509 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| 1510 ret = jvalue.get_##ResultType(); \ | |
| 1511 return ret;\ | |
| 1512 JNI_END | |
| 1513 | |
| 1514 // the runtime type of subword integral basic types is integer | |
| 1515 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN) | |
| 1516 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE) | |
| 1517 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR) | |
| 1518 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT) | |
| 1519 | |
| 1520 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT) | |
| 1521 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT) | |
| 1522 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG) | |
| 1523 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT) | |
| 1524 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE) | |
| 1525 | |
| 1526 | |
| 1527 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod); | |
| 1528 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV); | |
| 1529 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA); | |
| 1530 | |
| 1531 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) | |
| 1532 JNIWrapper("CallNonvirtualVoidMethod"); | |
| 1533 | |
| 1534 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry, | |
| 1535 env, obj, cls, methodID); | |
| 1536 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod); | |
| 1537 | |
| 1538 va_list args; | |
| 1539 va_start(args, methodID); | |
| 1540 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1541 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1542 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| 1543 va_end(args); | |
| 1544 JNI_END | |
| 1545 | |
| 1546 | |
| 1547 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) | |
| 1548 JNIWrapper("CallNonvirtualVoidMethodV"); | |
| 1549 | |
| 1550 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry, | |
| 1551 env, obj, cls, methodID); | |
| 1552 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV); | |
| 1553 | |
| 1554 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1555 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1556 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| 1557 JNI_END | |
| 1558 | |
| 1559 | |
| 1560 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) | |
| 1561 JNIWrapper("CallNonvirtualVoidMethodA"); | |
| 1562 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry, | |
| 1563 env, obj, cls, methodID); | |
| 1564 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA); | |
| 1565 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1566 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 1567 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| 1568 JNI_END | |
| 1569 | |
| 1570 | |
| 1571 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \ | |
| 1572 \ | |
| 1573 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\ | |
| 1574 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\ | |
| 1575 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\ | |
| 1576 \ | |
| 1577 JNI_ENTRY(ResultType, \ | |
| 1578 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \ | |
| 1579 JNIWrapper("CallStatic" XSTR(Result) "Method"); \ | |
| 1580 \ | |
| 1581 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\ | |
| 1582 ResultType ret = 0;\ | |
| 1583 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \ | |
| 1584 (const ResultType&)ret);\ | |
| 1585 \ | |
| 1586 va_list args; \ | |
| 1587 va_start(args, methodID); \ | |
| 1588 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1589 JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| 0 | 1590 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| 1591 va_end(args); \ | |
| 1592 ret = jvalue.get_##ResultType(); \ | |
| 1593 return ret;\ | |
| 1594 JNI_END \ | |
| 1595 \ | |
| 1596 JNI_ENTRY(ResultType, \ | |
| 1597 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \ | |
| 1598 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \ | |
| 1599 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\ | |
| 1600 ResultType ret = 0;\ | |
| 1601 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \ | |
| 1602 (const ResultType&)ret);\ | |
| 1603 \ | |
| 1604 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1605 JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| 0 | 1606 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| 1607 ret = jvalue.get_##ResultType(); \ | |
| 1608 return ret;\ | |
| 1609 JNI_END \ | |
| 1610 \ | |
| 1611 JNI_ENTRY(ResultType, \ | |
| 1612 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \ | |
| 1613 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \ | |
| 1614 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\ | |
| 1615 ResultType ret = 0;\ | |
| 1616 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \ | |
| 1617 (const ResultType&)ret);\ | |
| 1618 \ | |
| 1619 JavaValue jvalue(Tag); \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1620 JNI_ArgumentPusherArray ap(methodID, args); \ |
| 0 | 1621 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| 1622 ret = jvalue.get_##ResultType(); \ | |
| 1623 return ret;\ | |
| 1624 JNI_END | |
| 1625 | |
| 1626 // the runtime type of subword integral basic types is integer | |
| 1627 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN) | |
| 1628 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE) | |
| 1629 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR) | |
| 1630 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT) | |
| 1631 | |
| 1632 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT) | |
| 1633 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT) | |
| 1634 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG) | |
| 1635 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT) | |
| 1636 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE) | |
| 1637 | |
| 1638 | |
| 1639 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod); | |
| 1640 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV); | |
| 1641 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA); | |
| 1642 | |
| 1643 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...)) | |
| 1644 JNIWrapper("CallStaticVoidMethod"); | |
| 1645 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID); | |
| 1646 DT_VOID_RETURN_MARK(CallStaticVoidMethod); | |
| 1647 | |
| 1648 va_list args; | |
| 1649 va_start(args, methodID); | |
| 1650 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1651 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1652 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| 1653 va_end(args); | |
| 1654 JNI_END | |
| 1655 | |
| 1656 | |
| 1657 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) | |
| 1658 JNIWrapper("CallStaticVoidMethodV"); | |
| 1659 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID); | |
| 1660 DT_VOID_RETURN_MARK(CallStaticVoidMethodV); | |
| 1661 | |
| 1662 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1663 JNI_ArgumentPusherVaArg ap(methodID, args); |
| 0 | 1664 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| 1665 JNI_END | |
| 1666 | |
| 1667 | |
| 1668 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) | |
| 1669 JNIWrapper("CallStaticVoidMethodA"); | |
| 1670 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID); | |
| 1671 DT_VOID_RETURN_MARK(CallStaticVoidMethodA); | |
| 1672 | |
| 1673 JavaValue jvalue(T_VOID); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1674 JNI_ArgumentPusherArray ap(methodID, args); |
| 0 | 1675 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| 1676 JNI_END | |
| 1677 | |
| 1678 | |
| 1679 // | |
| 1680 // Accessing Fields | |
| 1681 // | |
| 1682 | |
| 1683 | |
| 1684 DT_RETURN_MARK_DECL(GetFieldID, jfieldID); | |
| 1685 | |
| 1686 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz, | |
| 1687 const char *name, const char *sig)) | |
| 1688 JNIWrapper("GetFieldID"); | |
| 1689 DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig); | |
| 1690 jfieldID ret = 0; | |
| 1691 DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret); | |
| 1692 | |
| 1693 // The class should have been loaded (we have an instance of the class | |
| 1694 // passed in) so the field and signature should already be in the symbol | |
| 1695 // table. If they're not there, the field doesn't exist. | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1696 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1697 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1698 if (fieldname == NULL || signame == NULL) { |
| 0 | 1699 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 1700 } | |
| 1701 KlassHandle k(THREAD, | |
| 1702 java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz))); | |
| 1703 // Make sure class is initialized before handing id's out to fields | |
| 1704 Klass::cast(k())->initialize(CHECK_NULL); | |
| 1705 | |
| 1706 fieldDescriptor fd; | |
| 1707 if (!Klass::cast(k())->oop_is_instance() || | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1708 !instanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) { |
| 0 | 1709 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 1710 } | |
| 1711 | |
| 1712 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop | |
| 1713 // It may also have hash bits for k, if VerifyJNIFields is turned on. | |
| 1714 ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset()); | |
| 1715 return ret; | |
| 1716 JNI_END | |
| 1717 | |
| 1718 | |
| 1719 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID)) | |
| 1720 JNIWrapper("GetObjectField"); | |
| 1721 DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID); | |
| 1722 oop o = JNIHandles::resolve_non_null(obj); | |
| 1723 klassOop k = o->klass(); | |
| 1724 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); | |
| 1725 // Keep JVMTI addition small and only check enabled flag here. | |
| 1726 // jni_GetField_probe() assumes that is okay to create handles. | |
| 1727 if (JvmtiExport::should_post_field_access()) { | |
| 1728 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false); | |
| 1729 } | |
| 1730 jobject ret = JNIHandles::make_local(env, o->obj_field(offset)); | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1731 #ifndef SERIALGC |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1732 // If G1 is enabled and we are accessing the value of the referent |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1733 // field in a reference object then we need to register a non-null |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1734 // referent with the SATB barrier. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1735 if (UseG1GC) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1736 bool needs_barrier = false; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1737 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1738 if (ret != NULL && |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1739 offset == java_lang_ref_Reference::referent_offset && |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1740 instanceKlass::cast(k)->reference_type() != REF_NONE) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1741 assert(instanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity"); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1742 needs_barrier = true; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1743 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1744 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1745 if (needs_barrier) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1746 oop referent = JNIHandles::resolve(ret); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1747 G1SATBCardTableModRefBS::enqueue(referent); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1748 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1749 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2376
diff
changeset
|
1750 #endif // SERIALGC |
| 0 | 1751 DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret); |
| 1752 return ret; | |
| 1753 JNI_END | |
| 1754 | |
| 1755 | |
| 1756 #define DEFINE_GETFIELD(Return,Fieldname,Result) \ | |
| 1757 \ | |
| 1758 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\ | |
| 1759 \ | |
| 1760 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \ | |
| 1761 JNIWrapper("Get" XSTR(Result) "Field"); \ | |
| 1762 \ | |
| 1763 DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\ | |
| 1764 Return ret = 0;\ | |
| 1765 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\ | |
| 1766 \ | |
| 1767 oop o = JNIHandles::resolve_non_null(obj); \ | |
| 1768 klassOop k = o->klass(); \ | |
| 1769 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ | |
| 1770 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 1771 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \ | |
| 1772 /* and creates a ResetNoHandleMark. */ \ | |
| 1773 if (JvmtiExport::should_post_field_access()) { \ | |
| 1774 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \ | |
| 1775 } \ | |
| 1776 ret = o->Fieldname##_field(offset); \ | |
| 1777 return ret; \ | |
| 1778 JNI_END | |
| 1779 | |
| 1780 DEFINE_GETFIELD(jboolean, bool, Boolean) | |
| 1781 DEFINE_GETFIELD(jbyte, byte, Byte) | |
| 1782 DEFINE_GETFIELD(jchar, char, Char) | |
| 1783 DEFINE_GETFIELD(jshort, short, Short) | |
| 1784 DEFINE_GETFIELD(jint, int, Int) | |
| 1785 DEFINE_GETFIELD(jlong, long, Long) | |
| 1786 DEFINE_GETFIELD(jfloat, float, Float) | |
| 1787 DEFINE_GETFIELD(jdouble, double, Double) | |
| 1788 | |
| 1789 address jni_GetBooleanField_addr() { | |
| 1790 return (address)jni_GetBooleanField; | |
| 1791 } | |
| 1792 address jni_GetByteField_addr() { | |
| 1793 return (address)jni_GetByteField; | |
| 1794 } | |
| 1795 address jni_GetCharField_addr() { | |
| 1796 return (address)jni_GetCharField; | |
| 1797 } | |
| 1798 address jni_GetShortField_addr() { | |
| 1799 return (address)jni_GetShortField; | |
| 1800 } | |
| 1801 address jni_GetIntField_addr() { | |
| 1802 return (address)jni_GetIntField; | |
| 1803 } | |
| 1804 address jni_GetLongField_addr() { | |
| 1805 return (address)jni_GetLongField; | |
| 1806 } | |
| 1807 address jni_GetFloatField_addr() { | |
| 1808 return (address)jni_GetFloatField; | |
| 1809 } | |
| 1810 address jni_GetDoubleField_addr() { | |
| 1811 return (address)jni_GetDoubleField; | |
| 1812 } | |
| 1813 | |
| 1814 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value)) | |
| 1815 JNIWrapper("SetObjectField"); | |
| 1816 DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value); | |
| 1817 oop o = JNIHandles::resolve_non_null(obj); | |
| 1818 klassOop k = o->klass(); | |
| 1819 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); | |
| 1820 // Keep JVMTI addition small and only check enabled flag here. | |
| 1821 // jni_SetField_probe_nh() assumes that is not okay to create handles | |
| 1822 // and creates a ResetNoHandleMark. | |
| 1823 if (JvmtiExport::should_post_field_modification()) { | |
| 1824 jvalue field_value; | |
| 1825 field_value.l = value; | |
| 1826 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value); | |
| 1827 } | |
| 1828 o->obj_field_put(offset, JNIHandles::resolve(value)); | |
| 1829 DTRACE_PROBE(hotspot_jni, SetObjectField__return); | |
| 1830 JNI_END | |
| 1831 | |
| 1832 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \ | |
| 1833 \ | |
| 1834 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \ | |
| 1835 JNIWrapper("Set" XSTR(Result) "Field"); \ | |
| 1836 \ | |
| 1837 HS_DTRACE_PROBE_CDECL_N(hotspot_jni, Set##Result##Field__entry, \ | |
| 1838 ( JNIEnv*, jobject, jfieldID FP_SELECT_##Result(COMMA Argument,/*empty*/) ) ); \ | |
| 1839 HS_DTRACE_PROBE_N(hotspot_jni, Set##Result##Field__entry, \ | |
| 1840 ( env, obj, fieldID FP_SELECT_##Result(COMMA value,/*empty*/) ) ); \ | |
| 1841 \ | |
| 1842 oop o = JNIHandles::resolve_non_null(obj); \ | |
| 1843 klassOop k = o->klass(); \ | |
| 1844 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ | |
| 1845 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 1846 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \ | |
| 1847 /* and creates a ResetNoHandleMark. */ \ | |
| 1848 if (JvmtiExport::should_post_field_modification()) { \ | |
| 1849 jvalue field_value; \ | |
| 1850 field_value.unionType = value; \ | |
| 1851 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \ | |
| 1852 } \ | |
| 1853 o->Fieldname##_field_put(offset, value); \ | |
| 1854 DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\ | |
| 1855 JNI_END | |
| 1856 | |
| 1857 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z) | |
| 1858 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b) | |
| 1859 DEFINE_SETFIELD(jchar, char, Char, 'C', c) | |
| 1860 DEFINE_SETFIELD(jshort, short, Short, 'S', s) | |
| 1861 DEFINE_SETFIELD(jint, int, Int, 'I', i) | |
| 1862 DEFINE_SETFIELD(jlong, long, Long, 'J', j) | |
| 1863 DEFINE_SETFIELD(jfloat, float, Float, 'F', f) | |
| 1864 DEFINE_SETFIELD(jdouble, double, Double, 'D', d) | |
| 1865 | |
| 1866 DT_RETURN_MARK_DECL(ToReflectedField, jobject); | |
| 1867 | |
| 1868 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic)) | |
| 1869 JNIWrapper("ToReflectedField"); | |
| 1870 DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry, | |
| 1871 env, cls, fieldID, isStatic); | |
| 1872 jobject ret = NULL; | |
| 1873 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret); | |
| 1874 | |
| 1875 fieldDescriptor fd; | |
| 1876 bool found = false; | |
| 1877 klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls)); | |
| 1878 | |
| 1879 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID"); | |
| 1880 | |
| 1881 if (isStatic) { | |
| 1882 // Static field. The fieldID a JNIid specifying the field holder and the offset within the klassOop. | |
| 1883 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); | |
| 1884 assert(id->is_static_field_id(), "invalid static field id"); | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
1885 found = id->find_local_field(&fd); |
| 0 | 1886 } else { |
| 1887 // Non-static field. The fieldID is really the offset of the field within the instanceOop. | |
| 1888 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); | |
| 1889 found = instanceKlass::cast(k)->find_field_from_offset(offset, false, &fd); | |
| 1890 } | |
| 1891 assert(found, "bad fieldID passed into jni_ToReflectedField"); | |
| 1892 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL); | |
| 1893 ret = JNIHandles::make_local(env, reflected); | |
| 1894 return ret; | |
| 1895 JNI_END | |
| 1896 | |
| 1897 | |
| 1898 // | |
| 1899 // Accessing Static Fields | |
| 1900 // | |
| 1901 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID); | |
| 1902 | |
| 1903 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz, | |
| 1904 const char *name, const char *sig)) | |
| 1905 JNIWrapper("GetStaticFieldID"); | |
| 1906 DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig); | |
| 1907 jfieldID ret = NULL; | |
| 1908 DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret); | |
| 1909 | |
| 1910 // The class should have been loaded (we have an instance of the class | |
| 1911 // passed in) so the field and signature should already be in the symbol | |
| 1912 // table. If they're not there, the field doesn't exist. | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1913 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1914 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1915 if (fieldname == NULL || signame == NULL) { |
| 0 | 1916 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 1917 } | |
| 1918 KlassHandle k(THREAD, | |
| 1919 java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz))); | |
| 1920 // Make sure class is initialized before handing id's out to static fields | |
| 1921 Klass::cast(k())->initialize(CHECK_NULL); | |
| 1922 | |
| 1923 fieldDescriptor fd; | |
| 1924 if (!Klass::cast(k())->oop_is_instance() || | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
1925 !instanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) { |
| 0 | 1926 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| 1927 } | |
| 1928 | |
| 1929 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the klassOop | |
| 1930 JNIid* id = instanceKlass::cast(fd.field_holder())->jni_id_for(fd.offset()); | |
| 1931 debug_only(id->set_is_static_field_id();) | |
| 1932 | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
1933 debug_only(id->verify(fd.field_holder())); |
| 0 | 1934 |
| 1935 ret = jfieldIDWorkaround::to_static_jfieldID(id); | |
| 1936 return ret; | |
| 1937 JNI_END | |
| 1938 | |
| 1939 | |
| 1940 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID)) | |
| 1941 JNIWrapper("GetStaticObjectField"); | |
| 1942 DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID); | |
| 1943 #ifndef JNICHECK_KERNEL | |
| 1944 DEBUG_ONLY(klassOop param_k = jniCheck::validate_class(thread, clazz);) | |
| 1945 #endif // JNICHECK_KERNEL | |
| 1946 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); | |
| 1947 assert(id->is_static_field_id(), "invalid static field id"); | |
| 1948 // Keep JVMTI addition small and only check enabled flag here. | |
| 1949 // jni_GetField_probe() assumes that is okay to create handles. | |
| 1950 if (JvmtiExport::should_post_field_access()) { | |
| 1951 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); | |
| 1952 } | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
1953 jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset())); |
| 0 | 1954 DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret); |
| 1955 return ret; | |
| 1956 JNI_END | |
| 1957 | |
| 1958 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \ | |
| 1959 \ | |
| 1960 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\ | |
| 1961 \ | |
| 1962 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \ | |
| 1963 JNIWrapper("GetStatic" XSTR(Result) "Field"); \ | |
| 1964 DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\ | |
| 1965 Return ret = 0;\ | |
| 1966 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \ | |
| 1967 (const Return&)ret);\ | |
| 1968 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ | |
| 1969 assert(id->is_static_field_id(), "invalid static field id"); \ | |
| 1970 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 1971 /* jni_GetField_probe() assumes that is okay to create handles. */ \ | |
| 1972 if (JvmtiExport::should_post_field_access()) { \ | |
| 1973 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \ | |
| 1974 } \ | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
1975 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \ |
| 0 | 1976 return ret;\ |
| 1977 JNI_END | |
| 1978 | |
| 1979 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean) | |
| 1980 DEFINE_GETSTATICFIELD(jbyte, byte, Byte) | |
| 1981 DEFINE_GETSTATICFIELD(jchar, char, Char) | |
| 1982 DEFINE_GETSTATICFIELD(jshort, short, Short) | |
| 1983 DEFINE_GETSTATICFIELD(jint, int, Int) | |
| 1984 DEFINE_GETSTATICFIELD(jlong, long, Long) | |
| 1985 DEFINE_GETSTATICFIELD(jfloat, float, Float) | |
| 1986 DEFINE_GETSTATICFIELD(jdouble, double, Double) | |
| 1987 | |
| 1988 | |
| 1989 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value)) | |
| 1990 JNIWrapper("SetStaticObjectField"); | |
| 1991 DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value); | |
| 1992 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); | |
| 1993 assert(id->is_static_field_id(), "invalid static field id"); | |
| 1994 // Keep JVMTI addition small and only check enabled flag here. | |
| 1995 // jni_SetField_probe() assumes that is okay to create handles. | |
| 1996 if (JvmtiExport::should_post_field_modification()) { | |
| 1997 jvalue field_value; | |
| 1998 field_value.l = value; | |
| 1999 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value); | |
| 2000 } | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
2001 id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value)); |
| 0 | 2002 DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return); |
| 2003 JNI_END | |
| 2004 | |
| 2005 | |
| 2006 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \ | |
| 2007 \ | |
| 2008 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \ | |
| 2009 JNIWrapper("SetStatic" XSTR(Result) "Field"); \ | |
| 2010 HS_DTRACE_PROBE_CDECL_N(hotspot_jni, SetStatic##Result##Field__entry,\ | |
| 2011 ( JNIEnv*, jclass, jfieldID FP_SELECT_##Result(COMMA Argument,/*empty*/) ) ); \ | |
| 2012 HS_DTRACE_PROBE_N(hotspot_jni, SetStatic##Result##Field__entry, \ | |
| 2013 ( env, clazz, fieldID FP_SELECT_##Result(COMMA value,/*empty*/) ) ); \ | |
| 2014 \ | |
| 2015 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ | |
| 2016 assert(id->is_static_field_id(), "invalid static field id"); \ | |
| 2017 /* Keep JVMTI addition small and only check enabled flag here. */ \ | |
| 2018 /* jni_SetField_probe() assumes that is okay to create handles. */ \ | |
| 2019 if (JvmtiExport::should_post_field_modification()) { \ | |
| 2020 jvalue field_value; \ | |
| 2021 field_value.unionType = value; \ | |
| 2022 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \ | |
| 2023 } \ | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
2024 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \ |
| 0 | 2025 DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\ |
| 2026 JNI_END | |
| 2027 | |
| 2028 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z) | |
| 2029 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b) | |
| 2030 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c) | |
| 2031 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s) | |
| 2032 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i) | |
| 2033 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j) | |
| 2034 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f) | |
| 2035 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d) | |
| 2036 | |
| 2037 | |
| 2038 // | |
| 2039 // String Operations | |
| 2040 // | |
| 2041 | |
| 2042 // Unicode Interface | |
| 2043 | |
| 2044 DT_RETURN_MARK_DECL(NewString, jstring); | |
| 2045 | |
| 2046 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len)) | |
| 2047 JNIWrapper("NewString"); | |
| 2048 DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len); | |
| 2049 jstring ret = NULL; | |
| 2050 DT_RETURN_MARK(NewString, jstring, (const jstring&)ret); | |
| 2051 oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL); | |
| 2052 ret = (jstring) JNIHandles::make_local(env, string); | |
| 2053 return ret; | |
| 2054 JNI_END | |
| 2055 | |
| 2056 | |
| 2057 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string)) | |
| 2058 JNIWrapper("GetStringLength"); | |
| 2059 DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string); | |
| 2060 jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string)); | |
| 2061 DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret); | |
| 2062 return ret; | |
| 2063 JNI_END | |
| 2064 | |
| 2065 | |
| 2066 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars( | |
| 2067 JNIEnv *env, jstring string, jboolean *isCopy)) | |
| 2068 JNIWrapper("GetStringChars"); | |
| 2069 DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy); | |
| 2070 //%note jni_5 | |
| 2071 if (isCopy != NULL) { | |
| 2072 *isCopy = JNI_TRUE; | |
| 2073 } | |
| 2074 oop s = JNIHandles::resolve_non_null(string); | |
| 2075 int s_len = java_lang_String::length(s); | |
| 2076 typeArrayOop s_value = java_lang_String::value(s); | |
| 2077 int s_offset = java_lang_String::offset(s); | |
| 2078 jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1); // add one for zero termination | |
| 2079 if (s_len > 0) { | |
| 2080 memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len); | |
| 2081 } | |
| 2082 buf[s_len] = 0; | |
| 2083 DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf); | |
| 2084 return buf; | |
| 2085 JNI_END | |
| 2086 | |
| 2087 | |
| 2088 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars)) | |
| 2089 JNIWrapper("ReleaseStringChars"); | |
| 2090 DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars); | |
| 2091 //%note jni_6 | |
| 2092 if (chars != NULL) { | |
| 2093 // Since String objects are supposed to be immutable, don't copy any | |
| 2094 // new data back. A bad user will have to go after the char array. | |
| 2095 FreeHeap((void*) chars); | |
| 2096 } | |
| 2097 DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return); | |
| 2098 JNI_END | |
| 2099 | |
| 2100 | |
| 2101 // UTF Interface | |
| 2102 | |
| 2103 DT_RETURN_MARK_DECL(NewStringUTF, jstring); | |
| 2104 | |
| 2105 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes)) | |
| 2106 JNIWrapper("NewStringUTF"); | |
| 2107 DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes); | |
| 2108 jstring ret; | |
| 2109 DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret); | |
| 2110 | |
| 2111 oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL); | |
| 2112 ret = (jstring) JNIHandles::make_local(env, result); | |
| 2113 return ret; | |
| 2114 JNI_END | |
| 2115 | |
| 2116 | |
| 2117 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string)) | |
| 2118 JNIWrapper("GetStringUTFLength"); | |
| 2119 DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string); | |
| 2120 jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string)); | |
| 2121 DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret); | |
| 2122 return ret; | |
| 2123 JNI_END | |
| 2124 | |
| 2125 | |
| 2126 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy)) | |
| 2127 JNIWrapper("GetStringUTFChars"); | |
| 2128 DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy); | |
|
1989
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
2129 oop java_string = JNIHandles::resolve_non_null(string); |
|
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
2130 size_t length = java_lang_String::utf8_length(java_string); |
|
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
2131 char* result = AllocateHeap(length + 1, "GetStringUTFChars"); |
|
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
2132 java_lang_String::as_utf8_string(java_string, result, (int) length + 1); |
| 0 | 2133 if (isCopy != NULL) *isCopy = JNI_TRUE; |
| 2134 DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result); | |
| 2135 return result; | |
| 2136 JNI_END | |
| 2137 | |
| 2138 | |
| 2139 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars)) | |
| 2140 JNIWrapper("ReleaseStringUTFChars"); | |
| 2141 DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars); | |
| 2142 if (chars != NULL) { | |
| 2143 FreeHeap((char*) chars); | |
| 2144 } | |
| 2145 DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return); | |
| 2146 JNI_END | |
| 2147 | |
| 2148 | |
| 2149 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array)) | |
| 2150 JNIWrapper("GetArrayLength"); | |
| 2151 DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array); | |
| 2152 arrayOop a = arrayOop(JNIHandles::resolve_non_null(array)); | |
| 2153 assert(a->is_array(), "must be array"); | |
| 2154 jsize ret = a->length(); | |
| 2155 DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret); | |
| 2156 return ret; | |
| 2157 JNI_END | |
| 2158 | |
| 2159 | |
| 2160 // | |
| 2161 // Object Array Operations | |
| 2162 // | |
| 2163 | |
| 2164 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray); | |
| 2165 | |
| 2166 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement)) | |
| 2167 JNIWrapper("NewObjectArray"); | |
| 2168 DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement); | |
| 2169 jobjectArray ret = NULL; | |
| 2170 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret); | |
| 2171 KlassHandle ek(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(elementClass))); | |
| 2172 klassOop ako = Klass::cast(ek())->array_klass(CHECK_NULL); | |
| 2173 KlassHandle ak = KlassHandle(THREAD, ako); | |
| 2174 objArrayKlass::cast(ak())->initialize(CHECK_NULL); | |
| 2175 objArrayOop result = objArrayKlass::cast(ak())->allocate(length, CHECK_NULL); | |
| 2176 oop initial_value = JNIHandles::resolve(initialElement); | |
| 2177 if (initial_value != NULL) { // array already initialized with NULL | |
| 2178 for (int index = 0; index < length; index++) { | |
| 2179 result->obj_at_put(index, initial_value); | |
| 2180 } | |
| 2181 } | |
| 2182 ret = (jobjectArray) JNIHandles::make_local(env, result); | |
| 2183 return ret; | |
| 2184 JNI_END | |
| 2185 | |
| 2186 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject); | |
| 2187 | |
| 2188 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index)) | |
| 2189 JNIWrapper("GetObjectArrayElement"); | |
| 2190 DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index); | |
| 2191 jobject ret = NULL; | |
| 2192 DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret); | |
| 2193 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 2194 if (a->is_within_bounds(index)) { | |
|
1034
08780c8a9f04
6893483: DTrace probe return values for a couple JNI methods are wrong
kamg
parents:
973
diff
changeset
|
2195 ret = JNIHandles::make_local(env, a->obj_at(index)); |
| 0 | 2196 return ret; |
| 2197 } else { | |
| 2198 char buf[jintAsStringSize]; | |
| 2199 sprintf(buf, "%d", index); | |
| 2200 THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); | |
| 2201 } | |
| 2202 JNI_END | |
| 2203 | |
| 2204 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement); | |
| 2205 | |
| 2206 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value)) | |
| 2207 JNIWrapper("SetObjectArrayElement"); | |
| 2208 DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value); | |
| 2209 DT_VOID_RETURN_MARK(SetObjectArrayElement); | |
| 2210 | |
| 2211 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 2212 oop v = JNIHandles::resolve(value); | |
| 2213 if (a->is_within_bounds(index)) { | |
| 2214 if (v == NULL || v->is_a(objArrayKlass::cast(a->klass())->element_klass())) { | |
| 2215 a->obj_at_put(index, v); | |
| 2216 } else { | |
| 2217 THROW(vmSymbols::java_lang_ArrayStoreException()); | |
| 2218 } | |
| 2219 } else { | |
| 2220 char buf[jintAsStringSize]; | |
| 2221 sprintf(buf, "%d", index); | |
| 2222 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); | |
| 2223 } | |
| 2224 JNI_END | |
| 2225 | |
| 2226 | |
| 2227 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \ | |
| 2228 \ | |
|
1034
08780c8a9f04
6893483: DTrace probe return values for a couple JNI methods are wrong
kamg
parents:
973
diff
changeset
|
2229 DT_RETURN_MARK_DECL(New##Result##Array, Return);\ |
| 0 | 2230 \ |
| 2231 JNI_ENTRY(Return, \ | |
| 2232 jni_New##Result##Array(JNIEnv *env, jsize len)) \ | |
| 2233 JNIWrapper("New" XSTR(Result) "Array"); \ | |
| 2234 DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\ | |
| 2235 Return ret = NULL;\ | |
|
1034
08780c8a9f04
6893483: DTrace probe return values for a couple JNI methods are wrong
kamg
parents:
973
diff
changeset
|
2236 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\ |
| 0 | 2237 \ |
| 2238 oop obj= oopFactory::Allocator(len, CHECK_0); \ | |
| 2239 ret = (Return) JNIHandles::make_local(env, obj); \ | |
| 2240 return ret;\ | |
| 2241 JNI_END | |
| 2242 | |
| 2243 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean) | |
| 2244 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte) | |
| 2245 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short) | |
| 2246 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char) | |
| 2247 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int) | |
| 2248 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long) | |
| 2249 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float) | |
| 2250 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double) | |
| 2251 | |
| 2252 | |
| 2253 // Return an address which will fault if the caller writes to it. | |
| 2254 | |
| 2255 static char* get_bad_address() { | |
| 2256 static char* bad_address = NULL; | |
| 2257 if (bad_address == NULL) { | |
| 2258 size_t size = os::vm_allocation_granularity(); | |
| 2259 bad_address = os::reserve_memory(size); | |
| 2260 if (bad_address != NULL) { | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
237
diff
changeset
|
2261 os::protect_memory(bad_address, size, os::MEM_PROT_READ, |
|
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
237
diff
changeset
|
2262 /*is_committed*/false); |
| 0 | 2263 } |
| 2264 } | |
| 2265 return bad_address; | |
| 2266 } | |
| 2267 | |
| 2268 | |
| 2269 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \ | |
| 2270 \ | |
| 2271 JNI_QUICK_ENTRY(ElementType*, \ | |
| 2272 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \ | |
| 2273 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \ | |
| 2274 DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\ | |
| 2275 /* allocate an chunk of memory in c land */ \ | |
| 2276 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2277 ElementType* result; \ | |
| 2278 int len = a->length(); \ | |
| 2279 if (len == 0) { \ | |
| 2280 /* Empty array: legal but useless, can't return NULL. \ | |
| 2281 * Return a pointer to something useless. \ | |
| 2282 * Avoid asserts in typeArrayOop. */ \ | |
| 2283 result = (ElementType*)get_bad_address(); \ | |
| 2284 } else { \ | |
| 2285 result = NEW_C_HEAP_ARRAY(ElementType, len); \ | |
| 2286 /* copy the array to the c chunk */ \ | |
| 2287 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \ | |
| 2288 } \ | |
| 2289 if (isCopy) *isCopy = JNI_TRUE; \ | |
| 2290 DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\ | |
| 2291 return result; \ | |
| 2292 JNI_END | |
| 2293 | |
| 2294 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool) | |
| 2295 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte) | |
| 2296 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short) | |
| 2297 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char) | |
| 2298 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int) | |
| 2299 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long) | |
| 2300 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float) | |
| 2301 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double) | |
| 2302 | |
| 2303 | |
| 2304 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \ | |
| 2305 \ | |
| 2306 JNI_QUICK_ENTRY(void, \ | |
| 2307 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \ | |
| 2308 ElementType *buf, jint mode)) \ | |
| 2309 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \ | |
| 2310 DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\ | |
| 2311 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2312 int len = a->length(); \ | |
| 2313 if (len != 0) { /* Empty array: nothing to free or copy. */ \ | |
| 2314 if ((mode == 0) || (mode == JNI_COMMIT)) { \ | |
| 2315 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \ | |
| 2316 } \ | |
| 2317 if ((mode == 0) || (mode == JNI_ABORT)) { \ | |
| 2318 FreeHeap(buf); \ | |
| 2319 } \ | |
| 2320 } \ | |
| 2321 DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\ | |
| 2322 JNI_END | |
| 2323 | |
| 2324 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool) | |
| 2325 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte) | |
| 2326 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short) | |
| 2327 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char) | |
| 2328 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int) | |
| 2329 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long) | |
| 2330 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float) | |
| 2331 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double) | |
| 2332 | |
| 2333 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \ | |
| 2334 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\ | |
| 2335 \ | |
| 2336 JNI_ENTRY(void, \ | |
| 2337 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ | |
| 2338 jsize len, ElementType *buf)) \ | |
| 2339 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \ | |
| 2340 DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\ | |
| 2341 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \ | |
| 2342 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2343 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \ | |
| 2344 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ | |
| 2345 } else { \ | |
| 2346 if (len > 0) { \ | |
| 2347 int sc = typeArrayKlass::cast(src->klass())->log2_element_size(); \ | |
| 2348 memcpy((u_char*) buf, \ | |
| 2349 (u_char*) src->Tag##_at_addr(start), \ | |
| 2350 len << sc); \ | |
| 2351 } \ | |
| 2352 } \ | |
| 2353 JNI_END | |
| 2354 | |
| 2355 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool) | |
| 2356 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte) | |
| 2357 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short) | |
| 2358 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char) | |
| 2359 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int) | |
| 2360 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long) | |
| 2361 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float) | |
| 2362 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double) | |
| 2363 | |
| 2364 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \ | |
| 2365 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\ | |
| 2366 \ | |
| 2367 JNI_ENTRY(void, \ | |
| 2368 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ | |
| 2369 jsize len, const ElementType *buf)) \ | |
| 2370 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \ | |
| 2371 DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\ | |
| 2372 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \ | |
| 2373 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \ | |
| 2374 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \ | |
| 2375 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ | |
| 2376 } else { \ | |
| 2377 if (len > 0) { \ | |
| 2378 int sc = typeArrayKlass::cast(dst->klass())->log2_element_size(); \ | |
| 2379 memcpy((u_char*) dst->Tag##_at_addr(start), \ | |
| 2380 (u_char*) buf, \ | |
| 2381 len << sc); \ | |
| 2382 } \ | |
| 2383 } \ | |
| 2384 JNI_END | |
| 2385 | |
| 2386 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool) | |
| 2387 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte) | |
| 2388 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short) | |
| 2389 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char) | |
| 2390 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int) | |
| 2391 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long) | |
| 2392 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float) | |
| 2393 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double) | |
| 2394 | |
| 2395 | |
| 2396 // | |
| 2397 // Interception of natives | |
| 2398 // | |
| 2399 | |
| 2400 // The RegisterNatives call being attempted tried to register with a method that | |
| 2401 // is not native. Ask JVM TI what prefixes have been specified. Then check | |
| 2402 // to see if the native method is now wrapped with the prefixes. See the | |
| 2403 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details. | |
| 2404 static methodOop find_prefixed_native(KlassHandle k, | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2405 Symbol* name, Symbol* signature, TRAPS) { |
| 0 | 2406 ResourceMark rm(THREAD); |
| 2407 methodOop method; | |
| 2408 int name_len = name->utf8_length(); | |
| 2409 char* name_str = name->as_utf8(); | |
| 2410 int prefix_count; | |
| 2411 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count); | |
| 2412 for (int i = 0; i < prefix_count; i++) { | |
| 2413 char* prefix = prefixes[i]; | |
| 2414 int prefix_len = (int)strlen(prefix); | |
| 2415 | |
| 2416 // try adding this prefix to the method name and see if it matches another method name | |
| 2417 int trial_len = name_len + prefix_len; | |
| 2418 char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1); | |
| 2419 strcpy(trial_name_str, prefix); | |
| 2420 strcat(trial_name_str, name_str); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2421 TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2422 if (trial_name == NULL) { |
| 0 | 2423 continue; // no such symbol, so this prefix wasn't used, try the next prefix |
| 2424 } | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2425 method = Klass::cast(k())->lookup_method(trial_name, signature); |
| 0 | 2426 if (method == NULL) { |
| 2427 continue; // signature doesn't match, try the next prefix | |
| 2428 } | |
| 2429 if (method->is_native()) { | |
| 2430 method->set_is_prefixed_native(); | |
| 2431 return method; // wahoo, we found a prefixed version of the method, return it | |
| 2432 } | |
| 2433 // found as non-native, so prefix is good, add it, probably just need more prefixes | |
| 2434 name_len = trial_len; | |
| 2435 name_str = trial_name_str; | |
| 2436 } | |
| 2437 return NULL; // not found | |
| 2438 } | |
| 2439 | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2440 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2441 methodOop method = Klass::cast(k())->lookup_method(name, signature); |
| 0 | 2442 if (method == NULL) { |
| 2443 ResourceMark rm; | |
| 2444 stringStream st; | |
| 2445 st.print("Method %s name or signature does not match", | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2446 methodOopDesc::name_and_sig_as_C_string(Klass::cast(k()), name, signature)); |
| 0 | 2447 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); |
| 2448 } | |
| 2449 if (!method->is_native()) { | |
| 2450 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es) | |
| 2451 method = find_prefixed_native(k, name, signature, THREAD); | |
| 2452 if (method == NULL) { | |
| 2453 ResourceMark rm; | |
| 2454 stringStream st; | |
| 2455 st.print("Method %s is not declared as native", | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2456 methodOopDesc::name_and_sig_as_C_string(Klass::cast(k()), name, signature)); |
| 0 | 2457 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); |
| 2458 } | |
| 2459 } | |
| 2460 | |
| 2461 if (entry != NULL) { | |
| 2462 method->set_native_function(entry, | |
| 2463 methodOopDesc::native_bind_event_is_interesting); | |
| 2464 } else { | |
| 2465 method->clear_native_function(); | |
| 2466 } | |
| 2467 if (PrintJNIResolving) { | |
| 2468 ResourceMark rm(THREAD); | |
| 2469 tty->print_cr("[Registering JNI native method %s.%s]", | |
| 2470 Klass::cast(method->method_holder())->external_name(), | |
| 2471 method->name()->as_C_string()); | |
| 2472 } | |
| 2473 return true; | |
| 2474 } | |
| 2475 | |
| 2476 DT_RETURN_MARK_DECL(RegisterNatives, jint); | |
| 2477 | |
| 2478 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz, | |
| 2479 const JNINativeMethod *methods, | |
| 2480 jint nMethods)) | |
| 2481 JNIWrapper("RegisterNatives"); | |
| 2482 DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods); | |
| 2483 jint ret = 0; | |
| 2484 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret); | |
| 2485 | |
| 2486 KlassHandle h_k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz))); | |
| 2487 | |
| 2488 for (int index = 0; index < nMethods; index++) { | |
| 2489 const char* meth_name = methods[index].name; | |
| 2490 const char* meth_sig = methods[index].signature; | |
| 2491 int meth_name_len = (int)strlen(meth_name); | |
| 2492 | |
| 2493 // The class should have been loaded (we have an instance of the class | |
| 2494 // passed in) so the method and signature should already be in the symbol | |
| 2495 // table. If they're not there, the method doesn't exist. | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2496 TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2497 TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig)); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2498 |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2499 if (name == NULL || signature == NULL) { |
| 0 | 2500 ResourceMark rm; |
| 2501 stringStream st; | |
| 2502 st.print("Method %s.%s%s not found", Klass::cast(h_k())->external_name(), meth_name, meth_sig); | |
| 2503 // Must return negative value on failure | |
| 2504 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1); | |
| 2505 } | |
| 2506 | |
| 2507 bool res = register_native(h_k, name, signature, | |
| 2508 (address) methods[index].fnPtr, THREAD); | |
| 2509 if (!res) { | |
| 2510 ret = -1; | |
| 2511 break; | |
| 2512 } | |
| 2513 } | |
| 2514 return ret; | |
| 2515 JNI_END | |
| 2516 | |
| 2517 | |
| 2518 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz)) | |
| 2519 JNIWrapper("UnregisterNatives"); | |
| 2520 DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz); | |
| 2521 klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)); | |
| 2522 //%note jni_2 | |
| 2523 if (Klass::cast(k)->oop_is_instance()) { | |
| 2524 for (int index = 0; index < instanceKlass::cast(k)->methods()->length(); index++) { | |
| 2525 methodOop m = methodOop(instanceKlass::cast(k)->methods()->obj_at(index)); | |
| 2526 if (m->is_native()) { | |
| 2527 m->clear_native_function(); | |
| 2528 m->set_signature_handler(NULL); | |
| 2529 } | |
| 2530 } | |
| 2531 } | |
| 2532 DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0); | |
| 2533 return 0; | |
| 2534 JNI_END | |
| 2535 | |
| 2536 // | |
| 2537 // Monitor functions | |
| 2538 // | |
| 2539 | |
| 2540 DT_RETURN_MARK_DECL(MonitorEnter, jint); | |
| 2541 | |
| 2542 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj)) | |
| 2543 DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj); | |
| 2544 jint ret = JNI_ERR; | |
| 2545 DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret); | |
| 2546 | |
| 2547 // If the object is null, we can't do anything with it | |
| 2548 if (jobj == NULL) { | |
| 2549 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); | |
| 2550 } | |
| 2551 | |
| 2552 Handle obj(thread, JNIHandles::resolve_non_null(jobj)); | |
| 2553 ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR)); | |
| 2554 ret = JNI_OK; | |
| 2555 return ret; | |
| 2556 JNI_END | |
| 2557 | |
| 2558 DT_RETURN_MARK_DECL(MonitorExit, jint); | |
| 2559 | |
| 2560 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj)) | |
| 2561 DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj); | |
| 2562 jint ret = JNI_ERR; | |
| 2563 DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret); | |
| 2564 | |
| 2565 // Don't do anything with a null object | |
| 2566 if (jobj == NULL) { | |
| 2567 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); | |
| 2568 } | |
| 2569 | |
| 2570 Handle obj(THREAD, JNIHandles::resolve_non_null(jobj)); | |
| 2571 ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR)); | |
| 2572 | |
| 2573 ret = JNI_OK; | |
| 2574 return ret; | |
| 2575 JNI_END | |
| 2576 | |
| 2577 // | |
| 2578 // Extensions | |
| 2579 // | |
| 2580 | |
| 2581 DT_VOID_RETURN_MARK_DECL(GetStringRegion); | |
| 2582 | |
| 2583 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf)) | |
| 2584 JNIWrapper("GetStringRegion"); | |
| 2585 DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf); | |
| 2586 DT_VOID_RETURN_MARK(GetStringRegion); | |
| 2587 oop s = JNIHandles::resolve_non_null(string); | |
| 2588 int s_len = java_lang_String::length(s); | |
| 2589 if (start < 0 || len < 0 || start + len > s_len) { | |
| 2590 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); | |
| 2591 } else { | |
| 2592 if (len > 0) { | |
| 2593 int s_offset = java_lang_String::offset(s); | |
| 2594 typeArrayOop s_value = java_lang_String::value(s); | |
| 2595 memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len); | |
| 2596 } | |
| 2597 } | |
| 2598 JNI_END | |
| 2599 | |
| 2600 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion); | |
| 2601 | |
| 2602 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf)) | |
| 2603 JNIWrapper("GetStringUTFRegion"); | |
| 2604 DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf); | |
| 2605 DT_VOID_RETURN_MARK(GetStringUTFRegion); | |
| 2606 oop s = JNIHandles::resolve_non_null(string); | |
| 2607 int s_len = java_lang_String::length(s); | |
| 2608 if (start < 0 || len < 0 || start + len > s_len) { | |
| 2609 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); | |
| 2610 } else { | |
| 2611 //%note jni_7 | |
| 2612 if (len > 0) { | |
| 2613 ResourceMark rm(THREAD); | |
| 2614 char *utf_region = java_lang_String::as_utf8_string(s, start, len); | |
| 2615 int utf_len = (int)strlen(utf_region); | |
| 2616 memcpy(buf, utf_region, utf_len); | |
| 2617 buf[utf_len] = 0; | |
| 2618 } else { | |
| 2619 // JDK null-terminates the buffer even in len is zero | |
| 2620 if (buf != NULL) { | |
| 2621 buf[0] = 0; | |
| 2622 } | |
| 2623 } | |
| 2624 } | |
| 2625 JNI_END | |
| 2626 | |
| 2627 | |
| 2628 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy)) | |
| 2629 JNIWrapper("GetPrimitiveArrayCritical"); | |
| 2630 DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy); | |
| 2631 GC_locker::lock_critical(thread); | |
| 2632 if (isCopy != NULL) { | |
| 2633 *isCopy = JNI_FALSE; | |
| 2634 } | |
| 2635 oop a = JNIHandles::resolve_non_null(array); | |
| 2636 assert(a->is_array(), "just checking"); | |
| 2637 BasicType type; | |
| 2638 if (a->is_objArray()) { | |
| 2639 type = T_OBJECT; | |
| 2640 } else { | |
| 2641 type = typeArrayKlass::cast(a->klass())->element_type(); | |
| 2642 } | |
| 2643 void* ret = arrayOop(a)->base(type); | |
| 2644 DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret); | |
| 2645 return ret; | |
| 2646 JNI_END | |
| 2647 | |
| 2648 | |
| 2649 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode)) | |
| 2650 JNIWrapper("ReleasePrimitiveArrayCritical"); | |
| 2651 DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode); | |
| 2652 // The array, carray and mode arguments are ignored | |
| 2653 GC_locker::unlock_critical(thread); | |
| 2654 DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return); | |
| 2655 JNI_END | |
| 2656 | |
| 2657 | |
| 2658 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy)) | |
| 2659 JNIWrapper("GetStringCritical"); | |
| 2660 DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy); | |
| 2661 GC_locker::lock_critical(thread); | |
| 2662 if (isCopy != NULL) { | |
| 2663 *isCopy = JNI_FALSE; | |
| 2664 } | |
| 2665 oop s = JNIHandles::resolve_non_null(string); | |
| 2666 int s_len = java_lang_String::length(s); | |
| 2667 typeArrayOop s_value = java_lang_String::value(s); | |
| 2668 int s_offset = java_lang_String::offset(s); | |
| 2669 const jchar* ret; | |
| 2670 if (s_len > 0) { | |
| 2671 ret = s_value->char_at_addr(s_offset); | |
| 2672 } else { | |
| 2673 ret = (jchar*) s_value->base(T_CHAR); | |
| 2674 } | |
| 2675 DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret); | |
| 2676 return ret; | |
| 2677 JNI_END | |
| 2678 | |
| 2679 | |
| 2680 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars)) | |
| 2681 JNIWrapper("ReleaseStringCritical"); | |
| 2682 DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars); | |
| 2683 // The str and chars arguments are ignored | |
| 2684 GC_locker::unlock_critical(thread); | |
| 2685 DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return); | |
| 2686 JNI_END | |
| 2687 | |
| 2688 | |
| 2689 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref)) | |
| 2690 JNIWrapper("jni_NewWeakGlobalRef"); | |
| 2691 DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref); | |
| 2692 Handle ref_handle(thread, JNIHandles::resolve(ref)); | |
| 2693 jweak ret = JNIHandles::make_weak_global(ref_handle); | |
| 2694 DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret); | |
| 2695 return ret; | |
| 2696 JNI_END | |
| 2697 | |
| 2698 // Must be JNI_ENTRY (with HandleMark) | |
| 2699 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref)) | |
| 2700 JNIWrapper("jni_DeleteWeakGlobalRef"); | |
| 2701 DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref); | |
| 2702 JNIHandles::destroy_weak_global(ref); | |
| 2703 DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return); | |
| 2704 JNI_END | |
| 2705 | |
| 2706 | |
| 2707 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env)) | |
| 2708 JNIWrapper("jni_ExceptionCheck"); | |
| 2709 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env); | |
| 2710 jni_check_async_exceptions(thread); | |
| 2711 jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE; | |
| 2712 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret); | |
| 2713 return ret; | |
| 2714 JNI_END | |
| 2715 | |
| 2716 | |
| 2717 // Initialization state for three routines below relating to | |
| 2718 // java.nio.DirectBuffers | |
| 2719 static jint directBufferSupportInitializeStarted = 0; | |
| 2720 static volatile jint directBufferSupportInitializeEnded = 0; | |
| 2721 static volatile jint directBufferSupportInitializeFailed = 0; | |
| 2722 static jclass bufferClass = NULL; | |
| 2723 static jclass directBufferClass = NULL; | |
| 2724 static jclass directByteBufferClass = NULL; | |
| 2725 static jmethodID directByteBufferConstructor = NULL; | |
| 2726 static jfieldID directBufferAddressField = NULL; | |
| 2727 static jfieldID bufferCapacityField = NULL; | |
| 2728 | |
| 2729 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) { | |
| 2730 Handle loader; // null (bootstrap) loader | |
| 2731 Handle protection_domain; // null protection domain | |
| 2732 | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2733 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); |
|
657
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
2734 jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL); |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
2735 |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
2736 if (TraceClassResolution && result != NULL) { |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
2737 trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result))); |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
2738 } |
|
715dceaa89b7
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
579
diff
changeset
|
2739 return result; |
| 0 | 2740 } |
| 2741 | |
| 2742 // These lookups are done with the NULL (bootstrap) ClassLoader to | |
| 2743 // circumvent any security checks that would be done by jni_FindClass. | |
| 2744 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env)) | |
| 2745 { | |
| 2746 if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; } | |
| 2747 if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; } | |
| 2748 if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; } | |
| 2749 return true; | |
| 2750 } | |
| 2751 JNI_END | |
| 2752 | |
| 2753 | |
| 2754 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) { | |
| 2755 if (directBufferSupportInitializeFailed) { | |
| 2756 return false; | |
| 2757 } | |
| 2758 | |
| 2759 if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) { | |
| 2760 if (!lookupDirectBufferClasses(env)) { | |
| 2761 directBufferSupportInitializeFailed = 1; | |
| 2762 return false; | |
| 2763 } | |
| 2764 | |
| 2765 // Make global references for these | |
| 2766 bufferClass = (jclass) env->NewGlobalRef(bufferClass); | |
| 2767 directBufferClass = (jclass) env->NewGlobalRef(directBufferClass); | |
| 2768 directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass); | |
| 2769 | |
| 2770 // Get needed field and method IDs | |
| 2771 directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V"); | |
| 2772 directBufferAddressField = env->GetFieldID(bufferClass, "address", "J"); | |
| 2773 bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I"); | |
| 2774 | |
| 2775 if ((directByteBufferConstructor == NULL) || | |
| 2776 (directBufferAddressField == NULL) || | |
| 2777 (bufferCapacityField == NULL)) { | |
| 2778 directBufferSupportInitializeFailed = 1; | |
| 2779 return false; | |
| 2780 } | |
| 2781 | |
| 2782 directBufferSupportInitializeEnded = 1; | |
| 2783 } else { | |
| 2784 while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) { | |
|
521
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
parents:
477
diff
changeset
|
2785 // Set state as yield_all can call os:sleep. On Solaris, yield_all calls |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
parents:
477
diff
changeset
|
2786 // os::sleep which requires the VM state transition. On other platforms, it |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
parents:
477
diff
changeset
|
2787 // is not necessary. The following call to change the VM state is purposely |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
parents:
477
diff
changeset
|
2788 // put inside the loop to avoid potential deadlock when multiple threads |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
parents:
477
diff
changeset
|
2789 // try to call this method. See 6791815 for more details. |
|
4db4e58c16bd
6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
xlu
parents:
477
diff
changeset
|
2790 ThreadInVMfromNative tivn(thread); |
| 0 | 2791 os::yield_all(); |
| 2792 } | |
| 2793 } | |
| 2794 | |
| 2795 return !directBufferSupportInitializeFailed; | |
| 2796 } | |
| 2797 | |
| 2798 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity) | |
| 2799 { | |
| 2800 // thread_from_jni_environment() will block if VM is gone. | |
| 2801 JavaThread* thread = JavaThread::thread_from_jni_environment(env); | |
| 2802 | |
| 2803 JNIWrapper("jni_NewDirectByteBuffer"); | |
| 2804 DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity); | |
| 2805 | |
| 2806 if (!directBufferSupportInitializeEnded) { | |
| 2807 if (!initializeDirectBufferSupport(env, thread)) { | |
| 2808 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL); | |
| 2809 return NULL; | |
| 2810 } | |
| 2811 } | |
| 2812 | |
| 2813 // Being paranoid about accidental sign extension on address | |
| 2814 jlong addr = (jlong) ((uintptr_t) address); | |
| 2815 // NOTE that package-private DirectByteBuffer constructor currently | |
| 2816 // takes int capacity | |
| 2817 jint cap = (jint) capacity; | |
| 2818 jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap); | |
| 2819 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret); | |
| 2820 return ret; | |
| 2821 } | |
| 2822 | |
| 2823 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*); | |
| 2824 | |
| 2825 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf) | |
| 2826 { | |
| 2827 // thread_from_jni_environment() will block if VM is gone. | |
| 2828 JavaThread* thread = JavaThread::thread_from_jni_environment(env); | |
| 2829 | |
| 2830 JNIWrapper("jni_GetDirectBufferAddress"); | |
| 2831 DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf); | |
| 2832 void* ret = NULL; | |
| 2833 DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret); | |
| 2834 | |
| 2835 if (!directBufferSupportInitializeEnded) { | |
| 2836 if (!initializeDirectBufferSupport(env, thread)) { | |
| 2837 return 0; | |
| 2838 } | |
| 2839 } | |
| 2840 | |
| 2841 if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) { | |
| 2842 return 0; | |
| 2843 } | |
| 2844 | |
| 2845 ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField); | |
| 2846 return ret; | |
| 2847 } | |
| 2848 | |
| 2849 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong); | |
| 2850 | |
| 2851 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf) | |
| 2852 { | |
| 2853 // thread_from_jni_environment() will block if VM is gone. | |
| 2854 JavaThread* thread = JavaThread::thread_from_jni_environment(env); | |
| 2855 | |
| 2856 JNIWrapper("jni_GetDirectBufferCapacity"); | |
| 2857 DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf); | |
| 2858 jlong ret = -1; | |
| 2859 DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret); | |
| 2860 | |
| 2861 if (!directBufferSupportInitializeEnded) { | |
| 2862 if (!initializeDirectBufferSupport(env, thread)) { | |
| 2863 ret = 0; | |
| 2864 return ret; | |
| 2865 } | |
| 2866 } | |
| 2867 | |
| 2868 if (buf == NULL) { | |
| 2869 return -1; | |
| 2870 } | |
| 2871 | |
| 2872 if (!env->IsInstanceOf(buf, directBufferClass)) { | |
| 2873 return -1; | |
| 2874 } | |
| 2875 | |
| 2876 // NOTE that capacity is currently an int in the implementation | |
| 2877 ret = env->GetIntField(buf, bufferCapacityField); | |
| 2878 return ret; | |
| 2879 } | |
| 2880 | |
| 2881 | |
| 2882 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env)) | |
| 2883 JNIWrapper("GetVersion"); | |
| 2884 DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env); | |
| 2885 DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion); | |
| 2886 return CurrentVersion; | |
| 2887 JNI_END | |
| 2888 | |
| 2889 extern struct JavaVM_ main_vm; | |
| 2890 | |
| 2891 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm)) | |
| 2892 JNIWrapper("jni_GetJavaVM"); | |
| 2893 DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm); | |
| 2894 *vm = (JavaVM *)(&main_vm); | |
| 2895 DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK); | |
| 2896 return JNI_OK; | |
| 2897 JNI_END | |
| 2898 | |
| 2899 // Structure containing all jni functions | |
| 2900 struct JNINativeInterface_ jni_NativeInterface = { | |
| 2901 NULL, | |
| 2902 NULL, | |
| 2903 NULL, | |
| 2904 | |
| 2905 NULL, | |
| 2906 | |
| 2907 jni_GetVersion, | |
| 2908 | |
| 2909 jni_DefineClass, | |
| 2910 jni_FindClass, | |
| 2911 | |
| 2912 jni_FromReflectedMethod, | |
| 2913 jni_FromReflectedField, | |
| 2914 | |
| 2915 jni_ToReflectedMethod, | |
| 2916 | |
| 2917 jni_GetSuperclass, | |
| 2918 jni_IsAssignableFrom, | |
| 2919 | |
| 2920 jni_ToReflectedField, | |
| 2921 | |
| 2922 jni_Throw, | |
| 2923 jni_ThrowNew, | |
| 2924 jni_ExceptionOccurred, | |
| 2925 jni_ExceptionDescribe, | |
| 2926 jni_ExceptionClear, | |
| 2927 jni_FatalError, | |
| 2928 | |
| 2929 jni_PushLocalFrame, | |
| 2930 jni_PopLocalFrame, | |
| 2931 | |
| 2932 jni_NewGlobalRef, | |
| 2933 jni_DeleteGlobalRef, | |
| 2934 jni_DeleteLocalRef, | |
| 2935 jni_IsSameObject, | |
| 2936 | |
| 2937 jni_NewLocalRef, | |
| 2938 jni_EnsureLocalCapacity, | |
| 2939 | |
| 2940 jni_AllocObject, | |
| 2941 jni_NewObject, | |
| 2942 jni_NewObjectV, | |
| 2943 jni_NewObjectA, | |
| 2944 | |
| 2945 jni_GetObjectClass, | |
| 2946 jni_IsInstanceOf, | |
| 2947 | |
| 2948 jni_GetMethodID, | |
| 2949 | |
| 2950 jni_CallObjectMethod, | |
| 2951 jni_CallObjectMethodV, | |
| 2952 jni_CallObjectMethodA, | |
| 2953 jni_CallBooleanMethod, | |
| 2954 jni_CallBooleanMethodV, | |
| 2955 jni_CallBooleanMethodA, | |
| 2956 jni_CallByteMethod, | |
| 2957 jni_CallByteMethodV, | |
| 2958 jni_CallByteMethodA, | |
| 2959 jni_CallCharMethod, | |
| 2960 jni_CallCharMethodV, | |
| 2961 jni_CallCharMethodA, | |
| 2962 jni_CallShortMethod, | |
| 2963 jni_CallShortMethodV, | |
| 2964 jni_CallShortMethodA, | |
| 2965 jni_CallIntMethod, | |
| 2966 jni_CallIntMethodV, | |
| 2967 jni_CallIntMethodA, | |
| 2968 jni_CallLongMethod, | |
| 2969 jni_CallLongMethodV, | |
| 2970 jni_CallLongMethodA, | |
| 2971 jni_CallFloatMethod, | |
| 2972 jni_CallFloatMethodV, | |
| 2973 jni_CallFloatMethodA, | |
| 2974 jni_CallDoubleMethod, | |
| 2975 jni_CallDoubleMethodV, | |
| 2976 jni_CallDoubleMethodA, | |
| 2977 jni_CallVoidMethod, | |
| 2978 jni_CallVoidMethodV, | |
| 2979 jni_CallVoidMethodA, | |
| 2980 | |
| 2981 jni_CallNonvirtualObjectMethod, | |
| 2982 jni_CallNonvirtualObjectMethodV, | |
| 2983 jni_CallNonvirtualObjectMethodA, | |
| 2984 jni_CallNonvirtualBooleanMethod, | |
| 2985 jni_CallNonvirtualBooleanMethodV, | |
| 2986 jni_CallNonvirtualBooleanMethodA, | |
| 2987 jni_CallNonvirtualByteMethod, | |
| 2988 jni_CallNonvirtualByteMethodV, | |
| 2989 jni_CallNonvirtualByteMethodA, | |
| 2990 jni_CallNonvirtualCharMethod, | |
| 2991 jni_CallNonvirtualCharMethodV, | |
| 2992 jni_CallNonvirtualCharMethodA, | |
| 2993 jni_CallNonvirtualShortMethod, | |
| 2994 jni_CallNonvirtualShortMethodV, | |
| 2995 jni_CallNonvirtualShortMethodA, | |
| 2996 jni_CallNonvirtualIntMethod, | |
| 2997 jni_CallNonvirtualIntMethodV, | |
| 2998 jni_CallNonvirtualIntMethodA, | |
| 2999 jni_CallNonvirtualLongMethod, | |
| 3000 jni_CallNonvirtualLongMethodV, | |
| 3001 jni_CallNonvirtualLongMethodA, | |
| 3002 jni_CallNonvirtualFloatMethod, | |
| 3003 jni_CallNonvirtualFloatMethodV, | |
| 3004 jni_CallNonvirtualFloatMethodA, | |
| 3005 jni_CallNonvirtualDoubleMethod, | |
| 3006 jni_CallNonvirtualDoubleMethodV, | |
| 3007 jni_CallNonvirtualDoubleMethodA, | |
| 3008 jni_CallNonvirtualVoidMethod, | |
| 3009 jni_CallNonvirtualVoidMethodV, | |
| 3010 jni_CallNonvirtualVoidMethodA, | |
| 3011 | |
| 3012 jni_GetFieldID, | |
| 3013 | |
| 3014 jni_GetObjectField, | |
| 3015 jni_GetBooleanField, | |
| 3016 jni_GetByteField, | |
| 3017 jni_GetCharField, | |
| 3018 jni_GetShortField, | |
| 3019 jni_GetIntField, | |
| 3020 jni_GetLongField, | |
| 3021 jni_GetFloatField, | |
| 3022 jni_GetDoubleField, | |
| 3023 | |
| 3024 jni_SetObjectField, | |
| 3025 jni_SetBooleanField, | |
| 3026 jni_SetByteField, | |
| 3027 jni_SetCharField, | |
| 3028 jni_SetShortField, | |
| 3029 jni_SetIntField, | |
| 3030 jni_SetLongField, | |
| 3031 jni_SetFloatField, | |
| 3032 jni_SetDoubleField, | |
| 3033 | |
| 3034 jni_GetStaticMethodID, | |
| 3035 | |
| 3036 jni_CallStaticObjectMethod, | |
| 3037 jni_CallStaticObjectMethodV, | |
| 3038 jni_CallStaticObjectMethodA, | |
| 3039 jni_CallStaticBooleanMethod, | |
| 3040 jni_CallStaticBooleanMethodV, | |
| 3041 jni_CallStaticBooleanMethodA, | |
| 3042 jni_CallStaticByteMethod, | |
| 3043 jni_CallStaticByteMethodV, | |
| 3044 jni_CallStaticByteMethodA, | |
| 3045 jni_CallStaticCharMethod, | |
| 3046 jni_CallStaticCharMethodV, | |
| 3047 jni_CallStaticCharMethodA, | |
| 3048 jni_CallStaticShortMethod, | |
| 3049 jni_CallStaticShortMethodV, | |
| 3050 jni_CallStaticShortMethodA, | |
| 3051 jni_CallStaticIntMethod, | |
| 3052 jni_CallStaticIntMethodV, | |
| 3053 jni_CallStaticIntMethodA, | |
| 3054 jni_CallStaticLongMethod, | |
| 3055 jni_CallStaticLongMethodV, | |
| 3056 jni_CallStaticLongMethodA, | |
| 3057 jni_CallStaticFloatMethod, | |
| 3058 jni_CallStaticFloatMethodV, | |
| 3059 jni_CallStaticFloatMethodA, | |
| 3060 jni_CallStaticDoubleMethod, | |
| 3061 jni_CallStaticDoubleMethodV, | |
| 3062 jni_CallStaticDoubleMethodA, | |
| 3063 jni_CallStaticVoidMethod, | |
| 3064 jni_CallStaticVoidMethodV, | |
| 3065 jni_CallStaticVoidMethodA, | |
| 3066 | |
| 3067 jni_GetStaticFieldID, | |
| 3068 | |
| 3069 jni_GetStaticObjectField, | |
| 3070 jni_GetStaticBooleanField, | |
| 3071 jni_GetStaticByteField, | |
| 3072 jni_GetStaticCharField, | |
| 3073 jni_GetStaticShortField, | |
| 3074 jni_GetStaticIntField, | |
| 3075 jni_GetStaticLongField, | |
| 3076 jni_GetStaticFloatField, | |
| 3077 jni_GetStaticDoubleField, | |
| 3078 | |
| 3079 jni_SetStaticObjectField, | |
| 3080 jni_SetStaticBooleanField, | |
| 3081 jni_SetStaticByteField, | |
| 3082 jni_SetStaticCharField, | |
| 3083 jni_SetStaticShortField, | |
| 3084 jni_SetStaticIntField, | |
| 3085 jni_SetStaticLongField, | |
| 3086 jni_SetStaticFloatField, | |
| 3087 jni_SetStaticDoubleField, | |
| 3088 | |
| 3089 jni_NewString, | |
| 3090 jni_GetStringLength, | |
| 3091 jni_GetStringChars, | |
| 3092 jni_ReleaseStringChars, | |
| 3093 | |
| 3094 jni_NewStringUTF, | |
| 3095 jni_GetStringUTFLength, | |
| 3096 jni_GetStringUTFChars, | |
| 3097 jni_ReleaseStringUTFChars, | |
| 3098 | |
| 3099 jni_GetArrayLength, | |
| 3100 | |
| 3101 jni_NewObjectArray, | |
| 3102 jni_GetObjectArrayElement, | |
| 3103 jni_SetObjectArrayElement, | |
| 3104 | |
| 3105 jni_NewBooleanArray, | |
| 3106 jni_NewByteArray, | |
| 3107 jni_NewCharArray, | |
| 3108 jni_NewShortArray, | |
| 3109 jni_NewIntArray, | |
| 3110 jni_NewLongArray, | |
| 3111 jni_NewFloatArray, | |
| 3112 jni_NewDoubleArray, | |
| 3113 | |
| 3114 jni_GetBooleanArrayElements, | |
| 3115 jni_GetByteArrayElements, | |
| 3116 jni_GetCharArrayElements, | |
| 3117 jni_GetShortArrayElements, | |
| 3118 jni_GetIntArrayElements, | |
| 3119 jni_GetLongArrayElements, | |
| 3120 jni_GetFloatArrayElements, | |
| 3121 jni_GetDoubleArrayElements, | |
| 3122 | |
| 3123 jni_ReleaseBooleanArrayElements, | |
| 3124 jni_ReleaseByteArrayElements, | |
| 3125 jni_ReleaseCharArrayElements, | |
| 3126 jni_ReleaseShortArrayElements, | |
| 3127 jni_ReleaseIntArrayElements, | |
| 3128 jni_ReleaseLongArrayElements, | |
| 3129 jni_ReleaseFloatArrayElements, | |
| 3130 jni_ReleaseDoubleArrayElements, | |
| 3131 | |
| 3132 jni_GetBooleanArrayRegion, | |
| 3133 jni_GetByteArrayRegion, | |
| 3134 jni_GetCharArrayRegion, | |
| 3135 jni_GetShortArrayRegion, | |
| 3136 jni_GetIntArrayRegion, | |
| 3137 jni_GetLongArrayRegion, | |
| 3138 jni_GetFloatArrayRegion, | |
| 3139 jni_GetDoubleArrayRegion, | |
| 3140 | |
| 3141 jni_SetBooleanArrayRegion, | |
| 3142 jni_SetByteArrayRegion, | |
| 3143 jni_SetCharArrayRegion, | |
| 3144 jni_SetShortArrayRegion, | |
| 3145 jni_SetIntArrayRegion, | |
| 3146 jni_SetLongArrayRegion, | |
| 3147 jni_SetFloatArrayRegion, | |
| 3148 jni_SetDoubleArrayRegion, | |
| 3149 | |
| 3150 jni_RegisterNatives, | |
| 3151 jni_UnregisterNatives, | |
| 3152 | |
| 3153 jni_MonitorEnter, | |
| 3154 jni_MonitorExit, | |
| 3155 | |
| 3156 jni_GetJavaVM, | |
| 3157 | |
| 3158 jni_GetStringRegion, | |
| 3159 jni_GetStringUTFRegion, | |
| 3160 | |
| 3161 jni_GetPrimitiveArrayCritical, | |
| 3162 jni_ReleasePrimitiveArrayCritical, | |
| 3163 | |
| 3164 jni_GetStringCritical, | |
| 3165 jni_ReleaseStringCritical, | |
| 3166 | |
| 3167 jni_NewWeakGlobalRef, | |
| 3168 jni_DeleteWeakGlobalRef, | |
| 3169 | |
| 3170 jni_ExceptionCheck, | |
| 3171 | |
| 3172 jni_NewDirectByteBuffer, | |
| 3173 jni_GetDirectBufferAddress, | |
| 3174 jni_GetDirectBufferCapacity, | |
| 3175 | |
| 3176 // New 1_6 features | |
| 3177 | |
| 3178 jni_GetObjectRefType | |
| 3179 }; | |
| 3180 | |
| 3181 | |
| 3182 // For jvmti use to modify jni function table. | |
| 3183 // Java threads in native contiues to run until it is transitioned | |
| 3184 // to VM at safepoint. Before the transition or before it is blocked | |
| 3185 // for safepoint it may access jni function table. VM could crash if | |
| 3186 // any java thread access the jni function table in the middle of memcpy. | |
| 3187 // To avoid this each function pointers are copied automically. | |
| 3188 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) { | |
| 3189 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); | |
| 3190 intptr_t *a = (intptr_t *) jni_functions(); | |
| 3191 intptr_t *b = (intptr_t *) new_jni_NativeInterface; | |
| 3192 for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) { | |
| 3193 Atomic::store_ptr(*b++, a++); | |
| 3194 } | |
| 3195 } | |
| 3196 | |
| 3197 void quicken_jni_functions() { | |
| 3198 // Replace Get<Primitive>Field with fast versions | |
| 3199 if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access() | |
| 3200 && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls | |
| 3201 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2) | |
| 3202 // windows x86 currently needs SEH wrapper and the gain of the fast | |
| 3203 // versions currently isn't certain for server vm on uniprocessor. | |
| 3204 && os::is_MP() | |
| 3205 #endif | |
| 3206 ) { | |
| 3207 address func; | |
| 3208 func = JNI_FastGetField::generate_fast_get_boolean_field(); | |
| 3209 if (func != (address)-1) { | |
| 3210 jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func; | |
| 3211 } | |
| 3212 func = JNI_FastGetField::generate_fast_get_byte_field(); | |
| 3213 if (func != (address)-1) { | |
| 3214 jni_NativeInterface.GetByteField = (GetByteField_t)func; | |
| 3215 } | |
| 3216 func = JNI_FastGetField::generate_fast_get_char_field(); | |
| 3217 if (func != (address)-1) { | |
| 3218 jni_NativeInterface.GetCharField = (GetCharField_t)func; | |
| 3219 } | |
| 3220 func = JNI_FastGetField::generate_fast_get_short_field(); | |
| 3221 if (func != (address)-1) { | |
| 3222 jni_NativeInterface.GetShortField = (GetShortField_t)func; | |
| 3223 } | |
| 3224 func = JNI_FastGetField::generate_fast_get_int_field(); | |
| 3225 if (func != (address)-1) { | |
| 3226 jni_NativeInterface.GetIntField = (GetIntField_t)func; | |
| 3227 } | |
| 3228 func = JNI_FastGetField::generate_fast_get_long_field(); | |
| 3229 if (func != (address)-1) { | |
| 3230 jni_NativeInterface.GetLongField = (GetLongField_t)func; | |
| 3231 } | |
| 3232 func = JNI_FastGetField::generate_fast_get_float_field(); | |
| 3233 if (func != (address)-1) { | |
| 3234 jni_NativeInterface.GetFloatField = (GetFloatField_t)func; | |
| 3235 } | |
| 3236 func = JNI_FastGetField::generate_fast_get_double_field(); | |
| 3237 if (func != (address)-1) { | |
| 3238 jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func; | |
| 3239 } | |
| 3240 } | |
| 3241 } | |
| 3242 | |
| 3243 // Returns the function structure | |
| 3244 struct JNINativeInterface_* jni_functions() { | |
| 3245 #ifndef JNICHECK_KERNEL | |
| 3246 if (CheckJNICalls) return jni_functions_check(); | |
| 3247 #else // JNICHECK_KERNEL | |
| 3248 if (CheckJNICalls) warning("-Xcheck:jni is not supported in kernel vm."); | |
| 3249 #endif // JNICHECK_KERNEL | |
| 3250 return &jni_NativeInterface; | |
| 3251 } | |
| 3252 | |
| 3253 // Returns the function structure | |
| 3254 struct JNINativeInterface_* jni_functions_nocheck() { | |
| 3255 return &jni_NativeInterface; | |
| 3256 } | |
| 3257 | |
| 3258 | |
| 3259 // Invocation API | |
| 3260 | |
| 3261 | |
| 3262 // Forward declaration | |
| 3263 extern const struct JNIInvokeInterface_ jni_InvokeInterface; | |
| 3264 | |
| 3265 // Global invocation API vars | |
| 3266 volatile jint vm_created = 0; | |
| 3267 // Indicate whether it is safe to recreate VM | |
| 3268 volatile jint safe_to_recreate_vm = 1; | |
| 3269 struct JavaVM_ main_vm = {&jni_InvokeInterface}; | |
| 3270 | |
| 3271 | |
| 3272 #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */ | |
| 3273 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL }; | |
| 3274 | |
| 3275 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*); | |
| 3276 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint); | |
| 3277 | |
| 3278 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) { | |
| 3279 HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_); | |
| 3280 JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_; | |
| 3281 jint ret = JNI_ERR; | |
| 3282 DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret); | |
| 3283 | |
| 3284 if (Threads::is_supported_jni_version(args->version)) { | |
| 3285 ret = JNI_OK; | |
| 3286 } | |
| 3287 // 1.1 style no longer supported in hotspot. | |
| 3288 // According the JNI spec, we should update args->version on return. | |
| 3289 // We also use the structure to communicate with launcher about default | |
| 3290 // stack size. | |
| 3291 if (args->version == JNI_VERSION_1_1) { | |
| 3292 args->version = JNI_VERSION_1_2; | |
| 3293 // javaStackSize is int in arguments structure | |
| 3294 assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow"); | |
| 3295 args->javaStackSize = (jint)(ThreadStackSize * K); | |
| 3296 } | |
| 3297 return ret; | |
| 3298 } | |
| 3299 | |
| 3300 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args); | |
| 3301 DT_RETURN_MARK_DECL(CreateJavaVM, jint); | |
| 3302 | |
| 3303 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) { | |
| 3304 HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args); | |
| 3305 | |
| 3306 jint result = JNI_ERR; | |
| 3307 DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result); | |
| 3308 | |
| 1078 | 3309 // We're about to use Atomic::xchg for synchronization. Some Zero |
| 3310 // platforms use the GCC builtin __sync_lock_test_and_set for this, | |
| 3311 // but __sync_lock_test_and_set is not guaranteed to do what we want | |
| 3312 // on all architectures. So we check it works before relying on it. | |
| 3313 #if defined(ZERO) && defined(ASSERT) | |
| 3314 { | |
| 3315 jint a = 0xcafebabe; | |
| 3316 jint b = Atomic::xchg(0xdeadbeef, &a); | |
| 3317 void *c = &a; | |
| 3318 void *d = Atomic::xchg_ptr(&b, &c); | |
| 1132 | 3319 assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works"); |
| 1078 | 3320 assert(c == &b && d == &a, "Atomic::xchg_ptr() works"); |
| 3321 } | |
| 3322 #endif // ZERO && ASSERT | |
| 3323 | |
| 0 | 3324 // At the moment it's only possible to have one Java VM, |
| 3325 // since some of the runtime state is in global variables. | |
| 3326 | |
| 3327 // We cannot use our mutex locks here, since they only work on | |
| 3328 // Threads. We do an atomic compare and exchange to ensure only | |
| 3329 // one thread can call this method at a time | |
| 3330 | |
| 3331 // We use Atomic::xchg rather than Atomic::add/dec since on some platforms | |
| 3332 // the add/dec implementations are dependent on whether we are running | |
| 3333 // on a multiprocessor, and at this stage of initialization the os::is_MP | |
| 3334 // function used to determine this will always return false. Atomic::xchg | |
| 3335 // does not have this problem. | |
| 3336 if (Atomic::xchg(1, &vm_created) == 1) { | |
| 3337 return JNI_ERR; // already created, or create attempt in progress | |
| 3338 } | |
| 3339 if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) { | |
| 3340 return JNI_ERR; // someone tried and failed and retry not allowed. | |
| 3341 } | |
| 3342 | |
| 3343 assert(vm_created == 1, "vm_created is true during the creation"); | |
| 3344 | |
| 3345 /** | |
| 3346 * Certain errors during initialization are recoverable and do not | |
| 3347 * prevent this method from being called again at a later time | |
| 3348 * (perhaps with different arguments). However, at a certain | |
| 3349 * point during initialization if an error occurs we cannot allow | |
| 3350 * this function to be called again (or it will crash). In those | |
| 3351 * situations, the 'canTryAgain' flag is set to false, which atomically | |
| 3352 * sets safe_to_recreate_vm to 1, such that any new call to | |
| 3353 * JNI_CreateJavaVM will immediately fail using the above logic. | |
| 3354 */ | |
| 3355 bool can_try_again = true; | |
| 3356 | |
| 3357 result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again); | |
| 3358 if (result == JNI_OK) { | |
| 3359 JavaThread *thread = JavaThread::current(); | |
| 3360 /* thread is thread_in_vm here */ | |
| 3361 *vm = (JavaVM *)(&main_vm); | |
| 3362 *(JNIEnv**)penv = thread->jni_environment(); | |
| 3363 | |
|
3650
0e8a2a629afb
Pass-by compilation broker.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3540
diff
changeset
|
3364 if (UseGraal) { |
|
0e8a2a629afb
Pass-by compilation broker.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3540
diff
changeset
|
3365 GraalCompiler* compiler = GraalCompiler::instance(); |
|
0e8a2a629afb
Pass-by compilation broker.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3540
diff
changeset
|
3366 ciObjectFactory::initialize(); |
|
0e8a2a629afb
Pass-by compilation broker.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3540
diff
changeset
|
3367 compiler->initialize(); |
|
0e8a2a629afb
Pass-by compilation broker.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3540
diff
changeset
|
3368 } |
|
0e8a2a629afb
Pass-by compilation broker.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3540
diff
changeset
|
3369 |
| 0 | 3370 // Tracks the time application was running before GC |
| 3371 RuntimeService::record_application_start(); | |
| 3372 | |
| 3373 // Notify JVMTI | |
| 3374 if (JvmtiExport::should_post_thread_life()) { | |
| 3375 JvmtiExport::post_thread_start(thread); | |
| 3376 } | |
|
1454
7cf1952ec5fb
Added flag -XX:BootstrapC1X that precompiles Object::<init> and then every method in the compilation queue until it is empty.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1290
diff
changeset
|
3377 |
| 0 | 3378 // Check if we should compile all classes on bootclasspath |
| 3379 NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();) | |
| 3380 // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving. | |
| 3381 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); | |
| 3382 } else { | |
| 3383 if (can_try_again) { | |
| 3384 // reset safe_to_recreate_vm to 1 so that retrial would be possible | |
| 3385 safe_to_recreate_vm = 1; | |
| 3386 } | |
| 3387 | |
| 3388 // Creation failed. We must reset vm_created | |
| 3389 *vm = 0; | |
| 3390 *(JNIEnv**)penv = 0; | |
| 3391 // reset vm_created last to avoid race condition. Use OrderAccess to | |
| 3392 // control both compiler and architectural-based reordering. | |
| 3393 OrderAccess::release_store(&vm_created, 0); | |
| 3394 } | |
| 3395 | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1290
diff
changeset
|
3396 NOT_PRODUCT(test_error_handler(ErrorHandlerTest)); |
| 0 | 3397 return result; |
| 3398 } | |
| 3399 | |
| 3400 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \ | |
| 3401 JavaVM**, jsize, jsize*); | |
| 3402 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint); | |
| 3403 | |
| 3404 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) { | |
| 3405 // See bug 4367188, the wrapper can sometimes cause VM crashes | |
| 3406 // JNIWrapper("GetCreatedJavaVMs"); | |
| 3407 HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \ | |
| 3408 vm_buf, bufLen, numVMs); | |
| 3409 if (vm_created) { | |
| 3410 if (numVMs != NULL) *numVMs = 1; | |
| 3411 if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm); | |
| 3412 } else { | |
| 3413 if (numVMs != NULL) *numVMs = 0; | |
| 3414 } | |
| 3415 HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK); | |
| 3416 return JNI_OK; | |
| 3417 } | |
| 3418 | |
| 3419 extern "C" { | |
| 3420 | |
| 3421 DT_RETURN_MARK_DECL(DestroyJavaVM, jint); | |
| 3422 | |
| 3423 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) { | |
| 3424 DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm); | |
| 3425 jint res = JNI_ERR; | |
| 3426 DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res); | |
| 3427 | |
| 3428 if (!vm_created) { | |
| 3429 res = JNI_ERR; | |
| 3430 return res; | |
| 3431 } | |
| 3432 | |
| 3433 JNIWrapper("DestroyJavaVM"); | |
| 3434 JNIEnv *env; | |
| 3435 JavaVMAttachArgs destroyargs; | |
| 3436 destroyargs.version = CurrentVersion; | |
| 3437 destroyargs.name = (char *)"DestroyJavaVM"; | |
| 3438 destroyargs.group = NULL; | |
| 3439 res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs); | |
| 3440 if (res != JNI_OK) { | |
| 3441 return res; | |
| 3442 } | |
| 3443 | |
| 3444 // Since this is not a JVM_ENTRY we have to set the thread state manually before entering. | |
| 3445 JavaThread* thread = JavaThread::current(); | |
| 3446 ThreadStateTransition::transition_from_native(thread, _thread_in_vm); | |
| 3447 if (Threads::destroy_vm()) { | |
| 3448 // Should not change thread state, VM is gone | |
| 3449 vm_created = false; | |
| 3450 res = JNI_OK; | |
| 3451 return res; | |
| 3452 } else { | |
| 3453 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); | |
| 3454 res = JNI_ERR; | |
| 3455 return res; | |
| 3456 } | |
| 3457 } | |
| 3458 | |
| 3459 | |
| 3460 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) { | |
| 3461 JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args; | |
| 3462 | |
| 3463 // Check below commented out from JDK1.2fcs as well | |
| 3464 /* | |
| 3465 if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) { | |
| 3466 return JNI_EVERSION; | |
| 3467 } | |
| 3468 */ | |
| 3469 | |
| 3470 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
| 3471 if (t != NULL) { | |
| 3472 // If the thread has been attached this operation is a no-op | |
| 3473 *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment(); | |
| 3474 return JNI_OK; | |
| 3475 } | |
| 3476 | |
| 3477 // Create a thread and mark it as attaching so it will be skipped by the | |
| 3478 // ThreadsListEnumerator - see CR 6404306 | |
| 3479 JavaThread* thread = new JavaThread(true); | |
| 3480 | |
| 3481 // Set correct safepoint info. The thread is going to call into Java when | |
| 3482 // initializing the Java level thread object. Hence, the correct state must | |
| 3483 // be set in order for the Safepoint code to deal with it correctly. | |
| 3484 thread->set_thread_state(_thread_in_vm); | |
| 3485 // Must do this before initialize_thread_local_storage | |
| 3486 thread->record_stack_base_and_size(); | |
|
1290
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
3487 |
| 0 | 3488 thread->initialize_thread_local_storage(); |
| 3489 | |
| 3490 if (!os::create_attached_thread(thread)) { | |
| 3491 delete thread; | |
| 3492 return JNI_ERR; | |
| 3493 } | |
|
1290
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
3494 // Enable stack overflow checks |
|
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
3495 thread->create_stack_guard_pages(); |
|
c8a467bf56ad
6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
coleenp
parents:
1142
diff
changeset
|
3496 |
| 0 | 3497 thread->initialize_tlab(); |
| 3498 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3499 thread->cache_global_variables(); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3500 |
| 0 | 3501 // Crucial that we do not have a safepoint check for this thread, since it has |
| 3502 // not been added to the Thread list yet. | |
| 3503 { Threads_lock->lock_without_safepoint_check(); | |
| 3504 // This must be inside this lock in order to get FullGCALot to work properly, i.e., to | |
| 3505 // avoid this thread trying to do a GC before it is added to the thread-list | |
| 3506 thread->set_active_handles(JNIHandleBlock::allocate_block()); | |
| 3507 Threads::add(thread, daemon); | |
| 3508 Threads_lock->unlock(); | |
| 3509 } | |
| 3510 // Create thread group and name info from attach arguments | |
| 3511 oop group = NULL; | |
| 3512 char* thread_name = NULL; | |
| 3513 if (args != NULL && Threads::is_supported_jni_version(args->version)) { | |
| 3514 group = JNIHandles::resolve(args->group); | |
| 3515 thread_name = args->name; // may be NULL | |
| 3516 } | |
| 3517 if (group == NULL) group = Universe::main_thread_group(); | |
| 3518 | |
| 3519 // Create Java level thread object and attach it to this thread | |
| 3520 bool attach_failed = false; | |
| 3521 { | |
| 3522 EXCEPTION_MARK; | |
| 3523 HandleMark hm(THREAD); | |
| 3524 Handle thread_group(THREAD, group); | |
| 3525 thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD); | |
| 3526 if (HAS_PENDING_EXCEPTION) { | |
| 3527 CLEAR_PENDING_EXCEPTION; | |
| 3528 // cleanup outside the handle mark. | |
| 3529 attach_failed = true; | |
| 3530 } | |
| 3531 } | |
| 3532 | |
| 3533 if (attach_failed) { | |
| 3534 // Added missing cleanup | |
| 3535 thread->cleanup_failed_attach_current_thread(); | |
| 3536 return JNI_ERR; | |
| 3537 } | |
| 3538 | |
| 3539 // mark the thread as no longer attaching | |
| 3540 // this uses a fence to push the change through so we don't have | |
| 3541 // to regrab the threads_lock | |
| 3542 thread->set_attached(); | |
| 3543 | |
| 3544 // Set java thread status. | |
| 3545 java_lang_Thread::set_thread_status(thread->threadObj(), | |
| 3546 java_lang_Thread::RUNNABLE); | |
| 3547 | |
| 3548 // Notify the debugger | |
| 3549 if (JvmtiExport::should_post_thread_life()) { | |
| 3550 JvmtiExport::post_thread_start(thread); | |
| 3551 } | |
| 3552 | |
| 3553 *(JNIEnv**)penv = thread->jni_environment(); | |
| 3554 | |
| 3555 // Now leaving the VM, so change thread_state. This is normally automatically taken care | |
| 3556 // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by | |
| 3557 // using ThreadStateTransition::transition, we do a callback to the safepoint code if | |
| 3558 // needed. | |
| 3559 | |
| 3560 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); | |
| 3561 | |
| 3562 // Perform any platform dependent FPU setup | |
| 3563 os::setup_fpu(); | |
| 3564 | |
| 3565 return JNI_OK; | |
| 3566 } | |
| 3567 | |
| 3568 | |
| 3569 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) { | |
| 3570 DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args); | |
| 3571 if (!vm_created) { | |
| 3572 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR); | |
| 3573 return JNI_ERR; | |
| 3574 } | |
| 3575 | |
| 3576 JNIWrapper("AttachCurrentThread"); | |
| 3577 jint ret = attach_current_thread(vm, penv, _args, false); | |
| 3578 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret); | |
| 3579 return ret; | |
| 3580 } | |
| 3581 | |
| 3582 | |
| 3583 jint JNICALL jni_DetachCurrentThread(JavaVM *vm) { | |
| 3584 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm); | |
| 3585 VM_Exit::block_if_vm_exited(); | |
| 3586 | |
| 3587 JNIWrapper("DetachCurrentThread"); | |
| 3588 | |
| 3589 // If the thread has been deattacted the operations is a no-op | |
| 3590 if (ThreadLocalStorage::thread() == NULL) { | |
| 3591 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK); | |
| 3592 return JNI_OK; | |
| 3593 } | |
| 3594 | |
| 3595 JavaThread* thread = JavaThread::current(); | |
| 3596 if (thread->has_last_Java_frame()) { | |
| 3597 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR); | |
| 3598 // Can't detach a thread that's running java, that can't work. | |
| 3599 return JNI_ERR; | |
| 3600 } | |
| 3601 | |
| 3602 // Safepoint support. Have to do call-back to safepoint code, if in the | |
| 3603 // middel of a safepoint operation | |
| 3604 ThreadStateTransition::transition_from_native(thread, _thread_in_vm); | |
| 3605 | |
| 3606 // XXX: Note that JavaThread::exit() call below removes the guards on the | |
| 3607 // stack pages set up via enable_stack_{red,yellow}_zone() calls | |
| 3608 // above in jni_AttachCurrentThread. Unfortunately, while the setting | |
| 3609 // of the guards is visible in jni_AttachCurrentThread above, | |
| 3610 // the removal of the guards is buried below in JavaThread::exit() | |
| 3611 // here. The abstraction should be more symmetrically either exposed | |
| 3612 // or hidden (e.g. it could probably be hidden in the same | |
| 3613 // (platform-dependent) methods where we do alternate stack | |
| 3614 // maintenance work?) | |
| 3615 thread->exit(false, JavaThread::jni_detach); | |
| 3616 delete thread; | |
| 3617 | |
| 3618 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK); | |
| 3619 return JNI_OK; | |
| 3620 } | |
| 3621 | |
| 3622 DT_RETURN_MARK_DECL(GetEnv, jint); | |
| 3623 | |
| 3624 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) { | |
| 3625 DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version); | |
| 3626 jint ret = JNI_ERR; | |
| 3627 DT_RETURN_MARK(GetEnv, jint, (const jint&)ret); | |
| 3628 | |
| 3629 if (!vm_created) { | |
| 3630 *penv = NULL; | |
| 3631 ret = JNI_EDETACHED; | |
| 3632 return ret; | |
| 3633 } | |
| 3634 | |
| 3635 if (JvmtiExport::is_jvmti_version(version)) { | |
| 3636 ret = JvmtiExport::get_jvmti_interface(vm, penv, version); | |
| 3637 return ret; | |
| 3638 } | |
| 3639 | |
| 3640 #ifndef JVMPI_VERSION_1 | |
| 3641 // need these in order to be polite about older agents | |
| 3642 #define JVMPI_VERSION_1 ((jint)0x10000001) | |
| 3643 #define JVMPI_VERSION_1_1 ((jint)0x10000002) | |
| 3644 #define JVMPI_VERSION_1_2 ((jint)0x10000003) | |
| 3645 #endif // !JVMPI_VERSION_1 | |
| 3646 | |
| 3647 Thread* thread = ThreadLocalStorage::thread(); | |
| 3648 if (thread != NULL && thread->is_Java_thread()) { | |
| 3649 if (Threads::is_supported_jni_version_including_1_1(version)) { | |
| 3650 *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment(); | |
| 3651 ret = JNI_OK; | |
| 3652 return ret; | |
| 3653 | |
| 3654 } else if (version == JVMPI_VERSION_1 || | |
| 3655 version == JVMPI_VERSION_1_1 || | |
| 3656 version == JVMPI_VERSION_1_2) { | |
| 3657 tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported."); | |
| 3658 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); | |
| 3659 ret = JNI_EVERSION; | |
| 3660 return ret; | |
| 3661 } else if (JvmtiExport::is_jvmdi_version(version)) { | |
| 3662 tty->print_cr("FATAL ERROR: JVMDI is no longer supported."); | |
| 3663 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); | |
| 3664 ret = JNI_EVERSION; | |
| 3665 return ret; | |
| 3666 } else { | |
| 3667 *penv = NULL; | |
| 3668 ret = JNI_EVERSION; | |
| 3669 return ret; | |
| 3670 } | |
| 3671 } else { | |
| 3672 *penv = NULL; | |
| 3673 ret = JNI_EDETACHED; | |
| 3674 return ret; | |
| 3675 } | |
| 3676 } | |
| 3677 | |
| 3678 | |
| 3679 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) { | |
| 3680 DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args); | |
| 3681 if (!vm_created) { | |
| 3682 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR); | |
| 3683 return JNI_ERR; | |
| 3684 } | |
| 3685 | |
| 3686 JNIWrapper("AttachCurrentThreadAsDaemon"); | |
| 3687 jint ret = attach_current_thread(vm, penv, _args, true); | |
| 3688 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret); | |
| 3689 return ret; | |
| 3690 } | |
| 3691 | |
| 3692 | |
| 3693 } // End extern "C" | |
| 3694 | |
| 3695 const struct JNIInvokeInterface_ jni_InvokeInterface = { | |
| 3696 NULL, | |
| 3697 NULL, | |
| 3698 NULL, | |
| 3699 | |
| 3700 jni_DestroyJavaVM, | |
| 3701 jni_AttachCurrentThread, | |
| 3702 jni_DetachCurrentThread, | |
| 3703 jni_GetEnv, | |
| 3704 jni_AttachCurrentThreadAsDaemon | |
| 3705 }; |