| /* |
| * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2012 Red Hat, Inc. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "ci/ciReplay.hpp" |
| #include "classfile/altHashing.hpp" |
| #include "classfile/classLoader.hpp" |
| #include "classfile/javaClasses.hpp" |
| #include "classfile/symbolTable.hpp" |
| #include "classfile/systemDictionary.hpp" |
| #include "classfile/vmSymbols.hpp" |
| #include "interpreter/linkResolver.hpp" |
| #include "utilities/macros.hpp" |
| #if INCLUDE_ALL_GCS |
| #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
| #endif // INCLUDE_ALL_GCS |
| #include "memory/allocation.hpp" |
| #include "memory/allocation.inline.hpp" |
| #include "memory/gcLocker.inline.hpp" |
| #include "memory/oopFactory.hpp" |
| #include "memory/universe.inline.hpp" |
| #include "oops/instanceKlass.hpp" |
| #include "oops/instanceOop.hpp" |
| #include "oops/markOop.hpp" |
| #include "oops/method.hpp" |
| #include "oops/objArrayKlass.hpp" |
| #include "oops/objArrayOop.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "oops/symbol.hpp" |
| #include "oops/typeArrayKlass.hpp" |
| #include "oops/typeArrayOop.hpp" |
| #include "prims/jni.h" |
| #include "prims/jniCheck.hpp" |
| #include "prims/jniExport.hpp" |
| #include "prims/jniFastGetField.hpp" |
| #include "prims/jvm.h" |
| #include "prims/jvm_misc.hpp" |
| #include "prims/jvmtiExport.hpp" |
| #include "prims/jvmtiThreadState.hpp" |
| #include "runtime/compilationPolicy.hpp" |
| #include "runtime/fieldDescriptor.hpp" |
| #include "runtime/fprofiler.hpp" |
| #include "runtime/handles.inline.hpp" |
| #include "runtime/interfaceSupport.hpp" |
| #include "runtime/java.hpp" |
| #include "runtime/javaCalls.hpp" |
| #include "runtime/jfieldIDWorkaround.hpp" |
| #include "runtime/orderAccess.inline.hpp" |
| #include "runtime/reflection.hpp" |
| #include "runtime/sharedRuntime.hpp" |
| #include "runtime/signature.hpp" |
| #include "runtime/thread.inline.hpp" |
| #include "runtime/vm_operations.hpp" |
| #include "services/memTracker.hpp" |
| #include "services/runtimeService.hpp" |
| #include "trace/tracing.hpp" |
| #include "utilities/defaultStream.hpp" |
| #include "utilities/dtrace.hpp" |
| #include "utilities/events.hpp" |
| #include "utilities/histogram.hpp" |
| #ifdef TARGET_OS_FAMILY_linux |
| # include "os_linux.inline.hpp" |
| #endif |
| #ifdef TARGET_OS_FAMILY_solaris |
| # include "os_solaris.inline.hpp" |
| #endif |
| #ifdef TARGET_OS_FAMILY_windows |
| # include "os_windows.inline.hpp" |
| #endif |
| #ifdef TARGET_OS_FAMILY_bsd |
| # include "os_bsd.inline.hpp" |
| #endif |
| |
| static jint CurrentVersion = JNI_VERSION_1_8; |
| |
| |
| // The DT_RETURN_MARK macros create a scoped object to fire the dtrace |
| // '-return' probe regardless of the return path is taken out of the function. |
| // Methods that have multiple return paths use this to avoid having to |
| // instrument each return path. Methods that use CHECK or THROW must use this |
| // since those macros can cause an immedate uninstrumented return. |
| // |
| // In order to get the return value, a reference to the variable containing |
| // the return value must be passed to the contructor of the object, and |
| // the return value must be set before return (since the mark object has |
| // a reference to it). |
| // |
| // Example: |
| // DT_RETURN_MARK_DECL(SomeFunc, int); |
| // JNI_ENTRY(int, SomeFunc, ...) |
| // int return_value = 0; |
| // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value); |
| // foo(CHECK_0) |
| // return_value = 5; |
| // return return_value; |
| // JNI_END |
| #ifndef USDT2 |
| #define DT_RETURN_MARK_DECL(name, type) \ |
| HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type); \ |
| DTRACE_ONLY( \ |
| class DTraceReturnProbeMark_##name { \ |
| public: \ |
| const type& _ret_ref; \ |
| DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \ |
| ~DTraceReturnProbeMark_##name() { \ |
| HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref); \ |
| } \ |
| } \ |
| ) |
| // Void functions are simpler since there's no return value |
| #define DT_VOID_RETURN_MARK_DECL(name) \ |
| HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return); \ |
| DTRACE_ONLY( \ |
| class DTraceReturnProbeMark_##name { \ |
| public: \ |
| ~DTraceReturnProbeMark_##name() { \ |
| HS_DTRACE_PROBE0(hotspot_jni, name##__return); \ |
| } \ |
| } \ |
| ) |
| |
| #else /* USDT2 */ |
| |
| #define DT_RETURN_MARK_DECL(name, type, probe) \ |
| DTRACE_ONLY( \ |
| class DTraceReturnProbeMark_##name { \ |
| public: \ |
| const type& _ret_ref; \ |
| DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \ |
| ~DTraceReturnProbeMark_##name() { \ |
| probe; \ |
| } \ |
| } \ |
| ) |
| // Void functions are simpler since there's no return value |
| #define DT_VOID_RETURN_MARK_DECL(name, probe) \ |
| DTRACE_ONLY( \ |
| class DTraceReturnProbeMark_##name { \ |
| public: \ |
| ~DTraceReturnProbeMark_##name() { \ |
| probe; \ |
| } \ |
| } \ |
| ) |
| #endif /* USDT2 */ |
| |
| // Place these macros in the function to mark the return. Non-void |
| // functions need the type and address of the return value. |
| #define DT_RETURN_MARK(name, type, ref) \ |
| DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) ) |
| #define DT_VOID_RETURN_MARK(name) \ |
| DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark ) |
| |
| |
| // Use these to select distinct code for floating-point vs. non-floating point |
| // situations. Used from within common macros where we need slightly |
| // different behavior for Float/Double |
| #define FP_SELECT_Boolean(intcode, fpcode) intcode |
| #define FP_SELECT_Byte(intcode, fpcode) intcode |
| #define FP_SELECT_Char(intcode, fpcode) intcode |
| #define FP_SELECT_Short(intcode, fpcode) intcode |
| #define FP_SELECT_Object(intcode, fpcode) intcode |
| #define FP_SELECT_Int(intcode, fpcode) intcode |
| #define FP_SELECT_Long(intcode, fpcode) intcode |
| #define FP_SELECT_Float(intcode, fpcode) fpcode |
| #define FP_SELECT_Double(intcode, fpcode) fpcode |
| #define FP_SELECT(TypeName, intcode, fpcode) \ |
| FP_SELECT_##TypeName(intcode, fpcode) |
| |
| #define COMMA , |
| |
| // Choose DT_RETURN_MARK macros based on the type: float/double -> void |
| // (dtrace doesn't do FP yet) |
| #ifndef USDT2 |
| #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \ |
| FP_SELECT(TypeName, \ |
| DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) ) |
| #else /* USDT2 */ |
| #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe) \ |
| FP_SELECT(TypeName, \ |
| DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) ) |
| #endif /* USDT2 */ |
| #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \ |
| FP_SELECT(TypeName, \ |
| DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) ) |
| |
| |
| // out-of-line helpers for class jfieldIDWorkaround: |
| |
| bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) { |
| if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) { |
| uintptr_t as_uint = (uintptr_t) id; |
| intptr_t offset = raw_instance_offset(id); |
| if (is_checked_jfieldID(id)) { |
| if (!klass_hash_ok(k, id)) { |
| return false; |
| } |
| } |
| return InstanceKlass::cast(k)->contains_field_offset(offset); |
| } else { |
| JNIid* result = (JNIid*) id; |
| #ifdef ASSERT |
| return result != NULL && result->is_static_field_id(); |
| #else |
| return result != NULL; |
| #endif |
| } |
| } |
| |
| |
| intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) { |
| if (offset <= small_offset_mask) { |
| Klass* field_klass = k; |
| Klass* super_klass = field_klass->super(); |
| // With compressed oops the most super class with nonstatic fields would |
| // be the owner of fields embedded in the header. |
| while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() && |
| InstanceKlass::cast(super_klass)->contains_field_offset(offset)) { |
| field_klass = super_klass; // super contains the field also |
| super_klass = field_klass->super(); |
| } |
| debug_only(No_Safepoint_Verifier nosafepoint;) |
| uintptr_t klass_hash = field_klass->identity_hash(); |
| return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place; |
| } else { |
| #if 0 |
| #ifndef PRODUCT |
| { |
| ResourceMark rm; |
| warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name()); |
| } |
| #endif |
| #endif |
| return 0; |
| } |
| } |
| |
| bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) { |
| uintptr_t as_uint = (uintptr_t) id; |
| intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask; |
| do { |
| debug_only(No_Safepoint_Verifier nosafepoint;) |
| // Could use a non-blocking query for identity_hash here... |
| if ((k->identity_hash() & klass_mask) == klass_hash) |
| return true; |
| k = k->super(); |
| } while (k != NULL); |
| return false; |
| } |
| |
| void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) { |
| guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" ); |
| uintptr_t as_uint = (uintptr_t) id; |
| intptr_t offset = raw_instance_offset(id); |
| if (VerifyJNIFields) { |
| if (is_checked_jfieldID(id)) { |
| guarantee(klass_hash_ok(k, id), |
| "Bug in native code: jfieldID class must match object"); |
| } else { |
| #if 0 |
| #ifndef PRODUCT |
| if (Verbose) { |
| ResourceMark rm; |
| warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name()); |
| } |
| #endif |
| #endif |
| } |
| } |
| guarantee(InstanceKlass::cast(k)->contains_field_offset(offset), |
| "Bug in native code: jfieldID offset must address interior of object"); |
| } |
| |
| // Wrapper to trace JNI functions |
| |
| #ifdef ASSERT |
| Histogram* JNIHistogram; |
| static volatile jint JNIHistogram_lock = 0; |
| |
| class JNITraceWrapper : public StackObj { |
| public: |
| JNITraceWrapper(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) { |
| if (TraceJNICalls) { |
| va_list ap; |
| va_start(ap, format); |
| tty->print("JNI "); |
| tty->vprint_cr(format, ap); |
| va_end(ap); |
| } |
| } |
| }; |
| |
| class JNIHistogramElement : public HistogramElement { |
| public: |
| JNIHistogramElement(const char* name); |
| }; |
| |
| JNIHistogramElement::JNIHistogramElement(const char* elementName) { |
| _name = elementName; |
| uintx count = 0; |
| |
| while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) { |
| while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) { |
| count +=1; |
| if ( (WarnOnStalledSpinLock > 0) |
| && (count % WarnOnStalledSpinLock == 0)) { |
| warning("JNIHistogram_lock seems to be stalled"); |
| } |
| } |
| } |
| |
| |
| if(JNIHistogram == NULL) |
| JNIHistogram = new Histogram("JNI Call Counts",100); |
| |
| JNIHistogram->add_element(this); |
| Atomic::dec(&JNIHistogram_lock); |
| } |
| |
| #define JNICountWrapper(arg) \ |
| static JNIHistogramElement* e = new JNIHistogramElement(arg); \ |
| /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \ |
| if (e != NULL) e->increment_count() |
| #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg) |
| #else |
| #define JNIWrapper(arg) |
| #endif |
| |
| |
| // Implementation of JNI entries |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(DefineClass, jclass); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(DefineClass, jclass |
| , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef, |
| const jbyte *buf, jsize bufLen)) |
| JNIWrapper("DefineClass"); |
| |
| #ifndef USDT2 |
| DTRACE_PROBE5(hotspot_jni, DefineClass__entry, |
| env, name, loaderRef, buf, bufLen); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DEFINECLASS_ENTRY( |
| env, (char*) name, loaderRef, (char*) buf, bufLen); |
| #endif /* USDT2 */ |
| jclass cls = NULL; |
| DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls); |
| |
| TempNewSymbol class_name = NULL; |
| // Since exceptions can be thrown, class initialization can take place |
| // if name is NULL no check for class name in .class stream has to be made. |
| if (name != NULL) { |
| const int str_len = (int)strlen(name); |
| if (str_len > Symbol::max_length()) { |
| // It's impossible to create this class; the name cannot fit |
| // into the constant pool. |
| THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); |
| } |
| class_name = SymbolTable::new_symbol(name, CHECK_NULL); |
| } |
| ResourceMark rm(THREAD); |
| ClassFileStream st((u1*) buf, bufLen, NULL); |
| Handle class_loader (THREAD, JNIHandles::resolve(loaderRef)); |
| |
| if (UsePerfData && !class_loader.is_null()) { |
| // check whether the current caller thread holds the lock or not. |
| // If not, increment the corresponding counter |
| if (ObjectSynchronizer:: |
| query_lock_ownership((JavaThread*)THREAD, class_loader) != |
| ObjectSynchronizer::owner_self) { |
| ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc(); |
| } |
| } |
| Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader, |
| Handle(), &st, true, |
| CHECK_NULL); |
| |
| if (TraceClassResolution && k != NULL) { |
| trace_class_resolution(k); |
| } |
| |
| cls = (jclass)JNIHandles::make_local( |
| env, k->java_mirror()); |
| return cls; |
| JNI_END |
| |
| |
| |
| static bool first_time_FindClass = true; |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(FindClass, jclass); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(FindClass, jclass |
| , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name)) |
| JNIWrapper("FindClass"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_FINDCLASS_ENTRY( |
| env, (char *)name); |
| #endif /* USDT2 */ |
| |
| jclass result = NULL; |
| DT_RETURN_MARK(FindClass, jclass, (const jclass&)result); |
| |
| // Remember if we are the first invocation of jni_FindClass |
| bool first_time = first_time_FindClass; |
| first_time_FindClass = false; |
| |
| // Sanity check the name: it cannot be null or larger than the maximum size |
| // name we can fit in the constant pool. |
| if (name == NULL || (int)strlen(name) > Symbol::max_length()) { |
| THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); |
| } |
| |
| //%note jni_3 |
| Handle loader; |
| Handle protection_domain; |
| // Find calling class |
| instanceKlassHandle k (THREAD, thread->security_get_caller_class(0)); |
| if (k.not_null()) { |
| loader = Handle(THREAD, k->class_loader()); |
| // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed |
| // in the correct class context. |
| if (loader.is_null() && |
| k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) { |
| JavaValue result(T_OBJECT); |
| JavaCalls::call_static(&result, k, |
| vmSymbols::getFromClass_name(), |
| vmSymbols::void_class_signature(), |
| thread); |
| if (HAS_PENDING_EXCEPTION) { |
| Handle ex(thread, thread->pending_exception()); |
| CLEAR_PENDING_EXCEPTION; |
| THROW_HANDLE_0(ex); |
| } |
| oop mirror = (oop) result.get_jobject(); |
| loader = Handle(THREAD, |
| InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader()); |
| protection_domain = Handle(THREAD, |
| InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain()); |
| } |
| } else { |
| // We call ClassLoader.getSystemClassLoader to obtain the system class loader. |
| loader = Handle(THREAD, SystemDictionary::java_system_loader()); |
| } |
| |
| TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); |
| result = find_class_from_class_loader(env, sym, true, loader, |
| protection_domain, true, thread); |
| |
| if (TraceClassResolution && result != NULL) { |
| trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result))); |
| } |
| |
| // If we were the first invocation of jni_FindClass, we enable compilation again |
| // rather than just allowing invocation counter to overflow and decay. |
| // Controlled by flag DelayCompilationDuringStartup. |
| if (first_time && !CompileTheWorld) |
| CompilationPolicy::completed_vm_startup(); |
| |
| return result; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID |
| , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method)) |
| JNIWrapper("FromReflectedMethod"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY( |
| env, method); |
| #endif /* USDT2 */ |
| jmethodID ret = NULL; |
| DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret); |
| |
| // method is a handle to a java.lang.reflect.Method object |
| oop reflected = JNIHandles::resolve_non_null(method); |
| oop mirror = NULL; |
| int slot = 0; |
| |
| if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) { |
| mirror = java_lang_reflect_Constructor::clazz(reflected); |
| slot = java_lang_reflect_Constructor::slot(reflected); |
| } else { |
| assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type"); |
| mirror = java_lang_reflect_Method::clazz(reflected); |
| slot = java_lang_reflect_Method::slot(reflected); |
| } |
| Klass* k = java_lang_Class::as_Klass(mirror); |
| |
| KlassHandle k1(THREAD, k); |
| // Make sure class is initialized before handing id's out to methods |
| k1()->initialize(CHECK_NULL); |
| Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot); |
| ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(FromReflectedField, jfieldID); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(FromReflectedField, jfieldID |
| , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field)) |
| JNIWrapper("FromReflectedField"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY( |
| env, field); |
| #endif /* USDT2 */ |
| jfieldID ret = NULL; |
| DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret); |
| |
| // field is a handle to a java.lang.reflect.Field object |
| oop reflected = JNIHandles::resolve_non_null(field); |
| oop mirror = java_lang_reflect_Field::clazz(reflected); |
| Klass* k = java_lang_Class::as_Klass(mirror); |
| int slot = java_lang_reflect_Field::slot(reflected); |
| int modifiers = java_lang_reflect_Field::modifiers(reflected); |
| |
| KlassHandle k1(THREAD, k); |
| // Make sure class is initialized before handing id's out to fields |
| k1()->initialize(CHECK_NULL); |
| |
| // First check if this is a static field |
| if (modifiers & JVM_ACC_STATIC) { |
| intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot ); |
| JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset); |
| assert(id != NULL, "corrupt Field object"); |
| debug_only(id->set_is_static_field_id();) |
| // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass* |
| ret = jfieldIDWorkaround::to_static_jfieldID(id); |
| return ret; |
| } |
| |
| // The slot is the index of the field description in the field-array |
| // The jfieldID is the offset of the field within the object |
| // It may also have hash bits for k, if VerifyJNIFields is turned on. |
| intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot ); |
| assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object"); |
| ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset); |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(ToReflectedMethod, jobject); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(ToReflectedMethod, jobject |
| , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic)) |
| JNIWrapper("ToReflectedMethod"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY( |
| env, cls, (uintptr_t) method_id, isStatic); |
| #endif /* USDT2 */ |
| jobject ret = NULL; |
| DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret); |
| |
| methodHandle m (THREAD, Method::resolve_jmethod_id(method_id)); |
| assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match"); |
| oop reflection_method; |
| if (m->is_initializer()) { |
| reflection_method = Reflection::new_constructor(m, CHECK_NULL); |
| } else { |
| reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL); |
| } |
| ret = JNIHandles::make_local(env, reflection_method); |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(GetSuperclass, jclass); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetSuperclass, jclass |
| , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub)) |
| JNIWrapper("GetSuperclass"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSUPERCLASS_ENTRY( |
| env, sub); |
| #endif /* USDT2 */ |
| jclass obj = NULL; |
| DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj); |
| |
| oop mirror = JNIHandles::resolve_non_null(sub); |
| // primitive classes return NULL |
| if (java_lang_Class::is_primitive(mirror)) return NULL; |
| |
| // Rules of Class.getSuperClass as implemented by KLass::java_super: |
| // arrays return Object |
| // interfaces return NULL |
| // proper classes return Klass::super() |
| Klass* k = java_lang_Class::as_Klass(mirror); |
| if (k->is_interface()) return NULL; |
| |
| // return mirror for superclass |
| Klass* super = k->java_super(); |
| // super2 is the value computed by the compiler's getSuperClass intrinsic: |
| debug_only(Klass* super2 = ( k->oop_is_array() |
| ? SystemDictionary::Object_klass() |
| : k->super() ) ); |
| assert(super == super2, |
| "java_super computation depends on interface, array, other super"); |
| obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror()); |
| return obj; |
| JNI_END |
| |
| JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super)) |
| JNIWrapper("IsSubclassOf"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY( |
| env, sub, super); |
| #endif /* USDT2 */ |
| oop sub_mirror = JNIHandles::resolve_non_null(sub); |
| oop super_mirror = JNIHandles::resolve_non_null(super); |
| if (java_lang_Class::is_primitive(sub_mirror) || |
| java_lang_Class::is_primitive(super_mirror)) { |
| jboolean ret = (sub_mirror == super_mirror); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| } |
| Klass* sub_klass = java_lang_Class::as_Klass(sub_mirror); |
| Klass* super_klass = java_lang_Class::as_Klass(super_mirror); |
| assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom"); |
| jboolean ret = sub_klass->is_subtype_of(super_klass) ? |
| JNI_TRUE : JNI_FALSE; |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(Throw, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(Throw, jint |
| , HOTSPOT_JNI_THROW_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj)) |
| JNIWrapper("Throw"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_THROW_ENTRY( |
| env, obj); |
| #endif /* USDT2 */ |
| jint ret = JNI_OK; |
| DT_RETURN_MARK(Throw, jint, (const jint&)ret); |
| |
| THROW_OOP_(JNIHandles::resolve(obj), JNI_OK); |
| ShouldNotReachHere(); |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(ThrowNew, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(ThrowNew, jint |
| , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message)) |
| JNIWrapper("ThrowNew"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_THROWNEW_ENTRY( |
| env, clazz, (char *) message); |
| #endif /* USDT2 */ |
| jint ret = JNI_OK; |
| DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret); |
| |
| InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| Symbol* name = k->name(); |
| Handle class_loader (THREAD, k->class_loader()); |
| Handle protection_domain (THREAD, k->protection_domain()); |
| THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK); |
| ShouldNotReachHere(); |
| JNI_END |
| |
| |
| // JNI functions only transform a pending async exception to a synchronous |
| // exception in ExceptionOccurred and ExceptionCheck calls, since |
| // delivering an async exception in other places won't change the native |
| // code's control flow and would be harmful when native code further calls |
| // JNI functions with a pending exception. Async exception is also checked |
| // during the call, so ExceptionOccurred/ExceptionCheck won't return |
| // false but deliver the async exception at the very end during |
| // state transition. |
| |
| static void jni_check_async_exceptions(JavaThread *thread) { |
| assert(thread == Thread::current(), "must be itself"); |
| thread->check_and_handle_async_exceptions(); |
| } |
| |
| JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env)) |
| JNIWrapper("ExceptionOccurred"); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY( |
| env); |
| #endif /* USDT2 */ |
| jni_check_async_exceptions(thread); |
| oop exception = thread->pending_exception(); |
| jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env)) |
| JNIWrapper("ExceptionDescribe"); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY( |
| env); |
| #endif /* USDT2 */ |
| if (thread->has_pending_exception()) { |
| Handle ex(thread, thread->pending_exception()); |
| thread->clear_pending_exception(); |
| if (ex->is_a(SystemDictionary::ThreadDeath_klass())) { |
| // Don't print anything if we are being killed. |
| } else { |
| jio_fprintf(defaultStream::error_stream(), "Exception "); |
| if (thread != NULL && thread->threadObj() != NULL) { |
| ResourceMark rm(THREAD); |
| jio_fprintf(defaultStream::error_stream(), |
| "in thread \"%s\" ", thread->get_thread_name()); |
| } |
| if (ex->is_a(SystemDictionary::Throwable_klass())) { |
| JavaValue result(T_VOID); |
| JavaCalls::call_virtual(&result, |
| ex, |
| KlassHandle(THREAD, |
| SystemDictionary::Throwable_klass()), |
| vmSymbols::printStackTrace_name(), |
| vmSymbols::void_method_signature(), |
| THREAD); |
| // If an exception is thrown in the call it gets thrown away. Not much |
| // we can do with it. The native code that calls this, does not check |
| // for the exception - hence, it might still be in the thread when DestroyVM gets |
| // called, potentially causing a few asserts to trigger - since no pending exception |
| // is expected. |
| CLEAR_PENDING_EXCEPTION; |
| } else { |
| ResourceMark rm(THREAD); |
| jio_fprintf(defaultStream::error_stream(), |
| ". Uncaught exception of type %s.", |
| ex->klass()->external_name()); |
| } |
| } |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env)) |
| JNIWrapper("ExceptionClear"); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY( |
| env); |
| #endif /* USDT2 */ |
| |
| // The jni code might be using this API to clear java thrown exception. |
| // So just mark jvmti thread exception state as exception caught. |
| JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state(); |
| if (state != NULL && state->is_exception_detected()) { |
| state->set_exception_caught(); |
| } |
| thread->clear_pending_exception(); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, ExceptionClear__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg)) |
| JNIWrapper("FatalError"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_FATALERROR_ENTRY( |
| env, (char *) msg); |
| #endif /* USDT2 */ |
| tty->print_cr("FATAL ERROR in native method: %s", msg); |
| thread->print_stack(); |
| os::abort(); // Dump core and abort |
| JNI_END |
| |
| |
| JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity)) |
| JNIWrapper("PushLocalFrame"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY( |
| env, capacity); |
| #endif /* USDT2 */ |
| //%note jni_11 |
| if (capacity < 0 || |
| ((MaxJNILocalCapacity > 0) && (capacity > MaxJNILocalCapacity))) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_PUSHLOCALFRAME_RETURN( |
| (uint32_t)JNI_ERR); |
| #endif /* USDT2 */ |
| return JNI_ERR; |
| } |
| JNIHandleBlock* old_handles = thread->active_handles(); |
| JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); |
| assert(new_handles != NULL, "should not be NULL"); |
| new_handles->set_pop_frame_link(old_handles); |
| thread->set_active_handles(new_handles); |
| jint ret = JNI_OK; |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_PUSHLOCALFRAME_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result)) |
| JNIWrapper("PopLocalFrame"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_POPLOCALFRAME_ENTRY( |
| env, result); |
| #endif /* USDT2 */ |
| //%note jni_11 |
| Handle result_handle(thread, JNIHandles::resolve(result)); |
| JNIHandleBlock* old_handles = thread->active_handles(); |
| JNIHandleBlock* new_handles = old_handles->pop_frame_link(); |
| if (new_handles != NULL) { |
| // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL. |
| // This way code will still work if PopLocalFrame is called without a corresponding |
| // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise |
| // the release_block call will release the blocks. |
| thread->set_active_handles(new_handles); |
| old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below |
| JNIHandleBlock::release_block(old_handles, thread); // may block |
| result = JNIHandles::make_local(thread, result_handle()); |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_POPLOCALFRAME_RETURN( |
| result); |
| #endif /* USDT2 */ |
| return result; |
| JNI_END |
| |
| |
| JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref)) |
| JNIWrapper("NewGlobalRef"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWGLOBALREF_ENTRY( |
| env, ref); |
| #endif /* USDT2 */ |
| Handle ref_handle(thread, JNIHandles::resolve(ref)); |
| jobject ret = JNIHandles::make_global(ref_handle); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWGLOBALREF_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| // Must be JNI_ENTRY (with HandleMark) |
| JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref)) |
| JNIWrapper("DeleteGlobalRef"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DELETEGLOBALREF_ENTRY( |
| env, ref); |
| #endif /* USDT2 */ |
| JNIHandles::destroy_global(ref); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DELETEGLOBALREF_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj)) |
| JNIWrapper("DeleteLocalRef"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DELETELOCALREF_ENTRY( |
| env, obj); |
| #endif /* USDT2 */ |
| JNIHandles::destroy_local(obj); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DELETELOCALREF_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2)) |
| JNIWrapper("IsSameObject"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ISSAMEOBJECT_ENTRY( |
| env, r1, r2); |
| #endif /* USDT2 */ |
| oop a = JNIHandles::resolve(r1); |
| oop b = JNIHandles::resolve(r2); |
| jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE; |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ISSAMEOBJECT_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref)) |
| JNIWrapper("NewLocalRef"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWLOCALREF_ENTRY( |
| env, ref); |
| #endif /* USDT2 */ |
| jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref)); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWLOCALREF_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity)) |
| JNIWrapper("EnsureLocalCapacity"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY( |
| env, capacity); |
| #endif /* USDT2 */ |
| jint ret; |
| if (capacity >= 0 && |
| ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) { |
| ret = JNI_OK; |
| } else { |
| ret = JNI_ERR; |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| // Return the Handle Type |
| JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj)) |
| JNIWrapper("GetObjectRefType"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY( |
| env, obj); |
| #endif /* USDT2 */ |
| jobjectRefType ret; |
| if (JNIHandles::is_local_handle(thread, obj) || |
| JNIHandles::is_frame_handle(thread, obj)) |
| ret = JNILocalRefType; |
| else if (JNIHandles::is_global_handle(obj)) |
| ret = JNIGlobalRefType; |
| else if (JNIHandles::is_weak_global_handle(obj)) |
| ret = JNIWeakGlobalRefType; |
| else |
| ret = JNIInvalidRefType; |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN( |
| (void *) ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| class JNI_ArgumentPusher : public SignatureIterator { |
| protected: |
| JavaCallArguments* _arguments; |
| |
| virtual void get_bool () = 0; |
| virtual void get_char () = 0; |
| virtual void get_short () = 0; |
| virtual void get_byte () = 0; |
| virtual void get_int () = 0; |
| virtual void get_long () = 0; |
| virtual void get_float () = 0; |
| virtual void get_double () = 0; |
| virtual void get_object () = 0; |
| |
| JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) { |
| this->_return_type = T_ILLEGAL; |
| _arguments = NULL; |
| } |
| |
| public: |
| virtual void iterate( uint64_t fingerprint ) = 0; |
| |
| void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; } |
| |
| inline void do_bool() { if (!is_return_type()) get_bool(); } |
| inline void do_char() { if (!is_return_type()) get_char(); } |
| inline void do_short() { if (!is_return_type()) get_short(); } |
| inline void do_byte() { if (!is_return_type()) get_byte(); } |
| inline void do_int() { if (!is_return_type()) get_int(); } |
| inline void do_long() { if (!is_return_type()) get_long(); } |
| inline void do_float() { if (!is_return_type()) get_float(); } |
| inline void do_double() { if (!is_return_type()) get_double(); } |
| inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); } |
| inline void do_array(int begin, int end) { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array |
| inline void do_void() { } |
| |
| JavaCallArguments* arguments() { return _arguments; } |
| void push_receiver(Handle h) { _arguments->push_oop(h); } |
| }; |
| |
| |
| class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher { |
| protected: |
| va_list _ap; |
| |
| inline void get_bool() { |
| // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and |
| // 0 to JNI_FALSE. Boolean return values from native are normalized the same in |
| // TemplateInterpreterGenerator::generate_result_handler_for and |
| // SharedRuntime::generate_native_wrapper. |
| jboolean b = va_arg(_ap, jint); |
| _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE)); |
| } |
| inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg |
| inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg |
| inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg |
| inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); } |
| |
| // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests |
| |
| inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); } |
| inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg |
| inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); } |
| inline void get_object() { jobject l = va_arg(_ap, jobject); |
| _arguments->push_oop(Handle((oop *)l, false)); } |
| |
| inline void set_ap(va_list rap) { |
| #ifdef va_copy |
| va_copy(_ap, rap); |
| #elif defined (__va_copy) |
| __va_copy(_ap, rap); |
| #else |
| _ap = rap; |
| #endif |
| } |
| |
| public: |
| JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap) |
| : JNI_ArgumentPusher(signature) { |
| set_ap(rap); |
| } |
| JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap) |
| : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) { |
| set_ap(rap); |
| } |
| |
| // Optimized path if we have the bitvector form of signature |
| void iterate( uint64_t fingerprint ) { |
| if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments |
| else { |
| _return_type = (BasicType)((fingerprint >> static_feature_size) & |
| result_feature_mask); |
| |
| assert(fingerprint, "Fingerprint should not be 0"); |
| fingerprint = fingerprint >> (static_feature_size + result_feature_size); |
| while ( 1 ) { |
| switch ( fingerprint & parameter_feature_mask ) { |
| case bool_parm: |
| get_bool(); |
| break; |
| case char_parm: |
| get_char(); |
| break; |
| case short_parm: |
| get_short(); |
| break; |
| case byte_parm: |
| get_byte(); |
| break; |
| case int_parm: |
| get_int(); |
| break; |
| case obj_parm: |
| get_object(); |
| break; |
| case long_parm: |
| get_long(); |
| break; |
| case float_parm: |
| get_float(); |
| break; |
| case double_parm: |
| get_double(); |
| break; |
| case done_parm: |
| return; |
| break; |
| default: |
| ShouldNotReachHere(); |
| break; |
| } |
| fingerprint >>= parameter_feature_size; |
| } |
| } |
| } |
| }; |
| |
| |
| class JNI_ArgumentPusherArray : public JNI_ArgumentPusher { |
| protected: |
| const jvalue *_ap; |
| |
| inline void get_bool() { |
| // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and |
| // 0 to JNI_FALSE. Boolean return values from native are normalized the same in |
| // TemplateInterpreterGenerator::generate_result_handler_for and |
| // SharedRuntime::generate_native_wrapper. |
| jboolean b = (_ap++)->z; |
| _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE)); |
| } |
| inline void get_char() { _arguments->push_int((jint)(_ap++)->c); } |
| inline void get_short() { _arguments->push_int((jint)(_ap++)->s); } |
| inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); } |
| inline void get_int() { _arguments->push_int((jint)(_ap++)->i); } |
| |
| inline void get_long() { _arguments->push_long((_ap++)->j); } |
| inline void get_float() { _arguments->push_float((_ap++)->f); } |
| inline void get_double() { _arguments->push_double((_ap++)->d);} |
| inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); } |
| |
| inline void set_ap(const jvalue *rap) { _ap = rap; } |
| |
| public: |
| JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap) |
| : JNI_ArgumentPusher(signature) { |
| set_ap(rap); |
| } |
| JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap) |
| : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) { |
| set_ap(rap); |
| } |
| |
| // Optimized path if we have the bitvector form of signature |
| void iterate( uint64_t fingerprint ) { |
| if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments |
| else { |
| _return_type = (BasicType)((fingerprint >> static_feature_size) & |
| result_feature_mask); |
| assert(fingerprint, "Fingerprint should not be 0"); |
| fingerprint = fingerprint >> (static_feature_size + result_feature_size); |
| while ( 1 ) { |
| switch ( fingerprint & parameter_feature_mask ) { |
| case bool_parm: |
| get_bool(); |
| break; |
| case char_parm: |
| get_char(); |
| break; |
| case short_parm: |
| get_short(); |
| break; |
| case byte_parm: |
| get_byte(); |
| break; |
| case int_parm: |
| get_int(); |
| break; |
| case obj_parm: |
| get_object(); |
| break; |
| case long_parm: |
| get_long(); |
| break; |
| case float_parm: |
| get_float(); |
| break; |
| case double_parm: |
| get_double(); |
| break; |
| case done_parm: |
| return; |
| break; |
| default: |
| ShouldNotReachHere(); |
| break; |
| } |
| fingerprint >>= parameter_feature_size; |
| } |
| } |
| } |
| }; |
| |
| |
| enum JNICallType { |
| JNI_STATIC, |
| JNI_VIRTUAL, |
| JNI_NONVIRTUAL |
| }; |
| |
| |
| |
| static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { |
| methodHandle method(THREAD, Method::resolve_jmethod_id(method_id)); |
| |
| // Create object to hold arguments for the JavaCall, and associate it with |
| // the jni parser |
| ResourceMark rm(THREAD); |
| int number_of_parameters = method->size_of_parameters(); |
| JavaCallArguments java_args(number_of_parameters); |
| args->set_java_argument_object(&java_args); |
| |
| assert(method->is_static(), "method should be static"); |
| |
| // Fill out JavaCallArguments object |
| args->iterate( Fingerprinter(method).fingerprint() ); |
| // Initialize result type |
| result->set_type(args->get_ret_type()); |
| |
| // Invoke the method. Result is returned as oop. |
| JavaCalls::call(result, method, &java_args, CHECK); |
| |
| // Convert result |
| if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { |
| result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); |
| } |
| } |
| |
| |
| static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { |
| oop recv = JNIHandles::resolve(receiver); |
| if (recv == NULL) { |
| THROW(vmSymbols::java_lang_NullPointerException()); |
| } |
| Handle h_recv(THREAD, recv); |
| |
| int number_of_parameters; |
| Method* selected_method; |
| { |
| Method* m = Method::resolve_jmethod_id(method_id); |
| number_of_parameters = m->size_of_parameters(); |
| Klass* holder = m->method_holder(); |
| if (call_type != JNI_VIRTUAL) { |
| selected_method = m; |
| } else if (!m->has_itable_index()) { |
| // non-interface call -- for that little speed boost, don't handlize |
| debug_only(No_Safepoint_Verifier nosafepoint;) |
| // jni_GetMethodID makes sure class is linked and initialized |
| // so m should have a valid vtable index. |
| assert(m->valid_vtable_index(), "no valid vtable index"); |
| int vtbl_index = m->vtable_index(); |
| if (vtbl_index != Method::nonvirtual_vtable_index) { |
| Klass* k = h_recv->klass(); |
| // k might be an arrayKlassOop but all vtables start at |
| // the same place. The cast is to avoid virtual call and assertion. |
| InstanceKlass *ik = (InstanceKlass*)k; |
| selected_method = ik->method_at_vtable(vtbl_index); |
| } else { |
| // final method |
| selected_method = m; |
| } |
| } else { |
| // interface call |
| KlassHandle h_holder(THREAD, holder); |
| |
| int itbl_index = m->itable_index(); |
| Klass* k = h_recv->klass(); |
| selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK); |
| } |
| } |
| |
| methodHandle method(THREAD, selected_method); |
| |
| // Create object to hold arguments for the JavaCall, and associate it with |
| // the jni parser |
| ResourceMark rm(THREAD); |
| JavaCallArguments java_args(number_of_parameters); |
| args->set_java_argument_object(&java_args); |
| |
| // handle arguments |
| assert(!method->is_static(), "method should not be static"); |
| args->push_receiver(h_recv); // Push jobject handle |
| |
| // Fill out JavaCallArguments object |
| args->iterate( Fingerprinter(method).fingerprint() ); |
| // Initialize result type |
| result->set_type(args->get_ret_type()); |
| |
| // Invoke the method. Result is returned as oop. |
| JavaCalls::call(result, method, &java_args, CHECK); |
| |
| // Convert result |
| if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { |
| result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); |
| } |
| } |
| |
| |
| static instanceOop alloc_object(jclass clazz, TRAPS) { |
| KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| k()->check_valid_for_instantiation(false, CHECK_NULL); |
| InstanceKlass::cast(k())->initialize(CHECK_NULL); |
| instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD); |
| return ih; |
| } |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(AllocObject, jobject); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(AllocObject, jobject |
| , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz)) |
| JNIWrapper("AllocObject"); |
| |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ALLOCOBJECT_ENTRY( |
| env, clazz); |
| #endif /* USDT2 */ |
| jobject ret = NULL; |
| DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret); |
| |
| instanceOop i = alloc_object(clazz, CHECK_NULL); |
| ret = JNIHandles::make_local(env, i); |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(NewObjectA, jobject); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(NewObjectA, jobject |
| , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args)) |
| JNIWrapper("NewObjectA"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWOBJECTA_ENTRY( |
| env, clazz, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| jobject obj = NULL; |
| DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj); |
| |
| instanceOop i = alloc_object(clazz, CHECK_NULL); |
| obj = JNIHandles::make_local(env, i); |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherArray ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| return obj; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(NewObjectV, jobject); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(NewObjectV, jobject |
| , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args)) |
| JNIWrapper("NewObjectV"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWOBJECTV_ENTRY( |
| env, clazz, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| jobject obj = NULL; |
| DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj); |
| |
| instanceOop i = alloc_object(clazz, CHECK_NULL); |
| obj = JNIHandles::make_local(env, i); |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| return obj; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(NewObject, jobject); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(NewObject, jobject |
| , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...)) |
| JNIWrapper("NewObject"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWOBJECT_ENTRY( |
| env, clazz, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| jobject obj = NULL; |
| DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj); |
| |
| instanceOop i = alloc_object(clazz, CHECK_NULL); |
| obj = JNIHandles::make_local(env, i); |
| va_list args; |
| va_start(args, methodID); |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); |
| va_end(args); |
| return obj; |
| JNI_END |
| |
| |
| JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj)) |
| JNIWrapper("GetObjectClass"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETOBJECTCLASS_ENTRY( |
| env, obj); |
| #endif /* USDT2 */ |
| Klass* k = JNIHandles::resolve_non_null(obj)->klass(); |
| jclass ret = |
| (jclass) JNIHandles::make_local(env, k->java_mirror()); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETOBJECTCLASS_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz)) |
| JNIWrapper("IsInstanceOf"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ISINSTANCEOF_ENTRY( |
| env, obj, clazz); |
| #endif /* USDT2 */ |
| jboolean ret = JNI_TRUE; |
| if (obj != NULL) { |
| ret = JNI_FALSE; |
| Klass* k = java_lang_Class::as_Klass( |
| JNIHandles::resolve_non_null(clazz)); |
| if (k != NULL) { |
| ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE; |
| } |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ISINSTANCEOF_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str, |
| const char *sig, bool is_static, TRAPS) { |
| // %%%% This code should probably just call into a method in the LinkResolver |
| // |
| // The class should have been loaded (we have an instance of the class |
| // passed in) so the method and signature should already be in the symbol |
| // table. If they're not there, the method doesn't exist. |
| const char *name_to_probe = (name_str == NULL) |
| ? vmSymbols::object_initializer_name()->as_C_string() |
| : name_str; |
| TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe)); |
| TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig)); |
| |
| if (name == NULL || signature == NULL) { |
| THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); |
| } |
| |
| // Throw a NoSuchMethodError exception if we have an instance of a |
| // primitive java.lang.Class |
| if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) { |
| THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); |
| } |
| |
| KlassHandle klass(THREAD, |
| java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| |
| // Make sure class is linked and initialized before handing id's out to |
| // Method*s. |
| klass()->initialize(CHECK_NULL); |
| |
| Method* m; |
| if (name == vmSymbols::object_initializer_name() || |
| name == vmSymbols::class_initializer_name()) { |
| // Never search superclasses for constructors |
| if (klass->oop_is_instance()) { |
| m = InstanceKlass::cast(klass())->find_method(name, signature); |
| } else { |
| m = NULL; |
| } |
| } else { |
| m = klass->lookup_method(name, signature); |
| if (m == NULL && klass->oop_is_instance()) { |
| m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature); |
| } |
| } |
| if (m == NULL || (m->is_static() != is_static)) { |
| THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); |
| } |
| return m->jmethod_id(); |
| } |
| |
| |
| JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz, |
| const char *name, const char *sig)) |
| JNIWrapper("GetMethodID"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETMETHODID_ENTRY( |
| env, clazz, (char *) name, (char *) sig); |
| #endif /* USDT2 */ |
| jmethodID ret = get_method_id(env, clazz, name, sig, false, thread); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETMETHODID_RETURN( |
| (uintptr_t) ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz, |
| const char *name, const char *sig)) |
| JNIWrapper("GetStaticMethodID"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTATICMETHODID_ENTRY( |
| env, (char *) clazz, (char *) name, (char *)sig); |
| #endif /* USDT2 */ |
| jmethodID ret = get_method_id(env, clazz, name, sig, true, thread); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTATICMETHODID_RETURN( |
| (uintptr_t) ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| |
| // |
| // Calling Methods |
| // |
| |
| #ifndef USDT2 |
| #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\ |
| DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\ |
| DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \ |
| JNIWrapper("Call" XSTR(Result) "Method"); \ |
| \ |
| DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| va_list args; \ |
| va_start(args, methodID); \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| va_end(args); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END \ |
| \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \ |
| JNIWrapper("Call" XSTR(Result) "MethodV"); \ |
| \ |
| DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END \ |
| \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \ |
| JNIWrapper("Call" XSTR(Result) "MethodA"); \ |
| DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherArray ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN) |
| DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE) |
| DEFINE_CALLMETHOD(jchar, Char, T_CHAR) |
| DEFINE_CALLMETHOD(jshort, Short, T_SHORT) |
| |
| DEFINE_CALLMETHOD(jobject, Object, T_OBJECT) |
| DEFINE_CALLMETHOD(jint, Int, T_INT) |
| DEFINE_CALLMETHOD(jlong, Long, T_LONG) |
| DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT) |
| DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE) |
| |
| DT_VOID_RETURN_MARK_DECL(CallVoidMethod); |
| DT_VOID_RETURN_MARK_DECL(CallVoidMethodV); |
| DT_VOID_RETURN_MARK_DECL(CallVoidMethodA); |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_CALLMETHOD(ResultType, Result, Tag \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \ |
| , ReturnProbe); \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \ |
| JNIWrapper("Call" XSTR(Result) "Method"); \ |
| \ |
| EntryProbe; \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| va_list args; \ |
| va_start(args, methodID); \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| va_end(args); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLMETHOD(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLMETHOD(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref)) |
| |
| DEFINE_CALLMETHOD(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLMETHOD(jint, Int, T_INT, |
| HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLMETHOD(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref)) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLFLOATMETHOD_RETURN()) |
| DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN()) |
| |
| #define DEFINE_CALLMETHODV(ResultType, Result, Tag \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \ |
| , ReturnProbe); \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \ |
| JNIWrapper("Call" XSTR(Result) "MethodV"); \ |
| \ |
| EntryProbe;\ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLBOOLEANMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLBOOLEANMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODV(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLBYTEMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLBYTEMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODV(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLCHARMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLCHARMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODV(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLSHORTMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSHORTMETHODV_RETURN(_ret_ref)) |
| |
| DEFINE_CALLMETHODV(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLOBJECTMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLOBJECTMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODV(jint, Int, T_INT, |
| HOTSPOT_JNI_CALLINTMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLINTMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODV(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLLONGMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLLONGMETHODV_RETURN(_ret_ref)) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_CALLMETHODV(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLFLOATMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLFLOATMETHODV_RETURN()) |
| DEFINE_CALLMETHODV(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLDOUBLEMETHODV_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLDOUBLEMETHODV_RETURN()) |
| |
| #define DEFINE_CALLMETHODA(ResultType, Result, Tag \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \ |
| , ReturnProbe); \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \ |
| JNIWrapper("Call" XSTR(Result) "MethodA"); \ |
| EntryProbe; \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherArray ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLBOOLEANMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLBOOLEANMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODA(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLBYTEMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLBYTEMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODA(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLCHARMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLCHARMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODA(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLSHORTMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSHORTMETHODA_RETURN(_ret_ref)) |
| |
| DEFINE_CALLMETHODA(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLOBJECTMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLOBJECTMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODA(jint, Int, T_INT, |
| HOTSPOT_JNI_CALLINTMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLINTMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLMETHODA(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLLONGMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLLONGMETHODA_RETURN(_ret_ref)) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_CALLMETHODA(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLFLOATMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLFLOATMETHODA_RETURN()) |
| DEFINE_CALLMETHODA(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLDOUBLEMETHODA_ENTRY(env, obj, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLDOUBLEMETHODA_RETURN()) |
| |
| DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN()); |
| DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN()); |
| DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN()); |
| |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...)) |
| JNIWrapper("CallVoidMethod"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY( |
| env, obj, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallVoidMethod); |
| |
| va_list args; |
| va_start(args, methodID); |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| va_end(args); |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) |
| JNIWrapper("CallVoidMethodV"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY( |
| env, obj, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallVoidMethodV); |
| |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) |
| JNIWrapper("CallVoidMethodA"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY( |
| env, obj, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallVoidMethodA); |
| |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherArray ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); |
| JNI_END |
| |
| |
| #ifndef USDT2 |
| #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\ |
| DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\ |
| DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \ |
| JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \ |
| \ |
| DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\ |
| ResultType ret;\ |
| DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| va_list args; \ |
| va_start(args, methodID); \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| va_end(args); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \ |
| JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \ |
| DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\ |
| ResultType ret;\ |
| DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \ |
| JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \ |
| DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\ |
| ResultType ret;\ |
| DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherArray ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN) |
| DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE) |
| DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR) |
| DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT) |
| |
| DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT) |
| DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT) |
| DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG) |
| DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT) |
| DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE) |
| |
| |
| DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod); |
| DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV); |
| DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA); |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \ |
| , ReturnProbe);\ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \ |
| JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \ |
| \ |
| EntryProbe;\ |
| ResultType ret;\ |
| DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| va_list args; \ |
| va_start(args, methodID); \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| va_end(args); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref)) |
| |
| DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT |
| , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN()) |
| DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN()) |
| |
| #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \ |
| , ReturnProbe);\ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \ |
| JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \ |
| \ |
| EntryProbe;\ |
| ResultType ret;\ |
| DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODV(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODV(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODV(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref)) |
| |
| DEFINE_CALLNONVIRTUALMETHODV(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODV(jint, Int, T_INT |
| , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODV(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODV(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN()) |
| DEFINE_CALLNONVIRTUALMETHODV(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN()) |
| |
| #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \ |
| , ReturnProbe);\ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \ |
| JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \ |
| \ |
| EntryProbe;\ |
| ResultType ret;\ |
| DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherArray ap(methodID, args); \ |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODA(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODA(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODA(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref)) |
| |
| DEFINE_CALLNONVIRTUALMETHODA(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODA(jint, Int, T_INT |
| , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODA(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref)) |
| DEFINE_CALLNONVIRTUALMETHODA(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN()) |
| DEFINE_CALLNONVIRTUALMETHODA(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN()) |
| |
| DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod |
| , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN()); |
| DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV |
| , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN()); |
| DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA |
| , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN()); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) |
| JNIWrapper("CallNonvirtualVoidMethod"); |
| |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry, |
| env, obj, cls, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY( |
| env, obj, cls, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod); |
| |
| va_list args; |
| va_start(args, methodID); |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| va_end(args); |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) |
| JNIWrapper("CallNonvirtualVoidMethodV"); |
| |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry, |
| env, obj, cls, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY( |
| env, obj, cls, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV); |
| |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) |
| JNIWrapper("CallNonvirtualVoidMethodA"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry, |
| env, obj, cls, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY( |
| env, obj, cls, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA); |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherArray ap(methodID, args); |
| jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); |
| JNI_END |
| |
| |
| #ifndef USDT2 |
| #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\ |
| DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\ |
| DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \ |
| JNIWrapper("CallStatic" XSTR(Result) "Method"); \ |
| \ |
| DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| va_list args; \ |
| va_start(args, methodID); \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| va_end(args); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \ |
| JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \ |
| DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \ |
| JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \ |
| DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherArray ap(methodID, args); \ |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN) |
| DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE) |
| DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR) |
| DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT) |
| |
| DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT) |
| DEFINE_CALLSTATICMETHOD(jint, Int, T_INT) |
| DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG) |
| DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT) |
| DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE) |
| |
| |
| DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod); |
| DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV); |
| DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA); |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \ |
| , EntryProbe, ResultProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \ |
| , ResultProbe); \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \ |
| JNIWrapper("CallStatic" XSTR(Result) "Method"); \ |
| \ |
| EntryProbe; \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| va_list args; \ |
| va_start(args, methodID); \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| va_end(args); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref)); |
| |
| DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHOD(jint, Int, T_INT |
| , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref)); |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN()); |
| DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN()); |
| |
| #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \ |
| , EntryProbe, ResultProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \ |
| , ResultProbe); \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \ |
| JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \ |
| \ |
| EntryProbe; \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherVaArg ap(methodID, args); \ |
| /* Make sure class is initialized before trying to invoke its method */ \ |
| KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \ |
| k()->initialize(CHECK_0); \ |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| va_end(args); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODV(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODV(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODV(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref)); |
| |
| DEFINE_CALLSTATICMETHODV(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODV(jint, Int, T_INT |
| , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODV(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref)); |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_CALLSTATICMETHODV(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN()); |
| DEFINE_CALLSTATICMETHODV(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN()); |
| |
| #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \ |
| , EntryProbe, ResultProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \ |
| , ResultProbe); \ |
| \ |
| JNI_ENTRY(ResultType, \ |
| jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \ |
| JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \ |
| \ |
| EntryProbe; \ |
| ResultType ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \ |
| (const ResultType&)ret);\ |
| \ |
| JavaValue jvalue(Tag); \ |
| JNI_ArgumentPusherArray ap(methodID, args); \ |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ |
| ret = jvalue.get_##ResultType(); \ |
| return ret;\ |
| JNI_END |
| |
| // the runtime type of subword integral basic types is integer |
| DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN |
| , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODA(jbyte, Byte, T_BYTE |
| , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODA(jchar, Char, T_CHAR |
| , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODA(jshort, Short, T_SHORT |
| , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref)); |
| |
| DEFINE_CALLSTATICMETHODA(jobject, Object, T_OBJECT |
| , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODA(jint, Int, T_INT |
| , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref)); |
| DEFINE_CALLSTATICMETHODA(jlong, Long, T_LONG |
| , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref)); |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_CALLSTATICMETHODA(jfloat, Float, T_FLOAT |
| , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN()); |
| DEFINE_CALLSTATICMETHODA(jdouble, Double, T_DOUBLE |
| , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID), |
| HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN()); |
| |
| DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod |
| , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN()); |
| DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV |
| , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN()); |
| DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA |
| , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN()); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...)) |
| JNIWrapper("CallStaticVoidMethod"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY( |
| env, cls, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallStaticVoidMethod); |
| |
| va_list args; |
| va_start(args, methodID); |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| va_end(args); |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) |
| JNIWrapper("CallStaticVoidMethodV"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY( |
| env, cls, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallStaticVoidMethodV); |
| |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherVaArg ap(methodID, args); |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) |
| JNIWrapper("CallStaticVoidMethodA"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY( |
| env, cls, (uintptr_t) methodID); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(CallStaticVoidMethodA); |
| |
| JavaValue jvalue(T_VOID); |
| JNI_ArgumentPusherArray ap(methodID, args); |
| jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); |
| JNI_END |
| |
| |
| // |
| // Accessing Fields |
| // |
| |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(GetFieldID, jfieldID); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetFieldID, jfieldID |
| , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz, |
| const char *name, const char *sig)) |
| JNIWrapper("GetFieldID"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETFIELDID_ENTRY( |
| env, clazz, (char *) name, (char *) sig); |
| #endif /* USDT2 */ |
| jfieldID ret = 0; |
| DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret); |
| |
| // The class should have been loaded (we have an instance of the class |
| // passed in) so the field and signature should already be in the symbol |
| // table. If they're not there, the field doesn't exist. |
| TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); |
| TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); |
| if (fieldname == NULL || signame == NULL) { |
| THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| } |
| KlassHandle k(THREAD, |
| java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| // Make sure class is initialized before handing id's out to fields |
| k()->initialize(CHECK_NULL); |
| |
| fieldDescriptor fd; |
| if (!k()->oop_is_instance() || |
| !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) { |
| THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| } |
| |
| // A jfieldID for a non-static field is simply the offset of the field within the instanceOop |
| // It may also have hash bits for k, if VerifyJNIFields is turned on. |
| ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset()); |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID)) |
| JNIWrapper("GetObjectField"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETOBJECTFIELD_ENTRY( |
| env, obj, (uintptr_t) fieldID); |
| #endif /* USDT2 */ |
| oop o = JNIHandles::resolve_non_null(obj); |
| Klass* k = o->klass(); |
| int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); |
| // Keep JVMTI addition small and only check enabled flag here. |
| // jni_GetField_probe() assumes that is okay to create handles. |
| if (JvmtiExport::should_post_field_access()) { |
| o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false); |
| } |
| jobject ret = JNIHandles::make_local(env, o->obj_field(offset)); |
| #if INCLUDE_ALL_GCS |
| // If G1 is enabled and we are accessing the value of the referent |
| // field in a reference object then we need to register a non-null |
| // referent with the SATB barrier. |
| if (UseG1GC) { |
| bool needs_barrier = false; |
| |
| if (ret != NULL && |
| offset == java_lang_ref_Reference::referent_offset && |
| InstanceKlass::cast(k)->reference_type() != REF_NONE) { |
| assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity"); |
| needs_barrier = true; |
| } |
| |
| if (needs_barrier) { |
| oop referent = JNIHandles::resolve(ret); |
| G1SATBCardTableModRefBS::enqueue(referent); |
| } |
| } |
| #endif // INCLUDE_ALL_GCS |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETOBJECTFIELD_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| #ifndef USDT2 |
| #define DEFINE_GETFIELD(Return,Fieldname,Result) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\ |
| \ |
| JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \ |
| JNIWrapper("Get" XSTR(Result) "Field"); \ |
| \ |
| DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\ |
| Return ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\ |
| \ |
| oop o = JNIHandles::resolve_non_null(obj); \ |
| Klass* k = o->klass(); \ |
| int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \ |
| /* and creates a ResetNoHandleMark. */ \ |
| if (JvmtiExport::should_post_field_access()) { \ |
| o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \ |
| } \ |
| ret = o->Fieldname##_field(offset); \ |
| return ret; \ |
| JNI_END |
| |
| DEFINE_GETFIELD(jboolean, bool, Boolean) |
| DEFINE_GETFIELD(jbyte, byte, Byte) |
| DEFINE_GETFIELD(jchar, char, Char) |
| DEFINE_GETFIELD(jshort, short, Short) |
| DEFINE_GETFIELD(jint, int, Int) |
| DEFINE_GETFIELD(jlong, long, Long) |
| DEFINE_GETFIELD(jfloat, float, Float) |
| DEFINE_GETFIELD(jdouble, double, Double) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_GETFIELD(Return,Fieldname,Result \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \ |
| , ReturnProbe); \ |
| \ |
| JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \ |
| JNIWrapper("Get" XSTR(Result) "Field"); \ |
| \ |
| EntryProbe; \ |
| Return ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\ |
| \ |
| oop o = JNIHandles::resolve_non_null(obj); \ |
| Klass* k = o->klass(); \ |
| int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \ |
| /* and creates a ResetNoHandleMark. */ \ |
| if (JvmtiExport::should_post_field_access()) { \ |
| o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \ |
| } \ |
| ret = o->Fieldname##_field(offset); \ |
| return ret; \ |
| JNI_END |
| |
| DEFINE_GETFIELD(jboolean, bool, Boolean |
| , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref)) |
| DEFINE_GETFIELD(jbyte, byte, Byte |
| , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref)) |
| DEFINE_GETFIELD(jchar, char, Char |
| , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref)) |
| DEFINE_GETFIELD(jshort, short, Short |
| , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref)) |
| DEFINE_GETFIELD(jint, int, Int |
| , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref)) |
| DEFINE_GETFIELD(jlong, long, Long |
| , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref)) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_GETFIELD(jfloat, float, Float |
| , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETFLOATFIELD_RETURN()) |
| DEFINE_GETFIELD(jdouble, double, Double |
| , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_GETDOUBLEFIELD_RETURN()) |
| #endif /* USDT2 */ |
| |
| address jni_GetBooleanField_addr() { |
| return (address)jni_GetBooleanField; |
| } |
| address jni_GetByteField_addr() { |
| return (address)jni_GetByteField; |
| } |
| address jni_GetCharField_addr() { |
| return (address)jni_GetCharField; |
| } |
| address jni_GetShortField_addr() { |
| return (address)jni_GetShortField; |
| } |
| address jni_GetIntField_addr() { |
| return (address)jni_GetIntField; |
| } |
| address jni_GetLongField_addr() { |
| return (address)jni_GetLongField; |
| } |
| address jni_GetFloatField_addr() { |
| return (address)jni_GetFloatField; |
| } |
| address jni_GetDoubleField_addr() { |
| return (address)jni_GetDoubleField; |
| } |
| |
| JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value)) |
| JNIWrapper("SetObjectField"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_SETOBJECTFIELD_ENTRY( |
| env, obj, (uintptr_t) fieldID, value); |
| #endif /* USDT2 */ |
| oop o = JNIHandles::resolve_non_null(obj); |
| Klass* k = o->klass(); |
| int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); |
| // Keep JVMTI addition small and only check enabled flag here. |
| // jni_SetField_probe_nh() assumes that is not okay to create handles |
| // and creates a ResetNoHandleMark. |
| if (JvmtiExport::should_post_field_modification()) { |
| jvalue field_value; |
| field_value.l = value; |
| o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value); |
| } |
| o->obj_field_put(offset, JNIHandles::resolve(value)); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, SetObjectField__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_SETOBJECTFIELD_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| #ifndef USDT2 |
| #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \ |
| \ |
| JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \ |
| JNIWrapper("Set" XSTR(Result) "Field"); \ |
| \ |
| FP_SELECT_##Result( \ |
| DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \ |
| DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \ |
| \ |
| oop o = JNIHandles::resolve_non_null(obj); \ |
| Klass* k = o->klass(); \ |
| int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \ |
| /* and creates a ResetNoHandleMark. */ \ |
| if (JvmtiExport::should_post_field_modification()) { \ |
| jvalue field_value; \ |
| field_value.unionType = value; \ |
| o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \ |
| } \ |
| o->Fieldname##_field_put(offset, value); \ |
| DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\ |
| JNI_END |
| |
| DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z) |
| DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b) |
| DEFINE_SETFIELD(jchar, char, Char, 'C', c) |
| DEFINE_SETFIELD(jshort, short, Short, 'S', s) |
| DEFINE_SETFIELD(jint, int, Int, 'I', i) |
| DEFINE_SETFIELD(jlong, long, Long, 'J', j) |
| DEFINE_SETFIELD(jfloat, float, Float, 'F', f) |
| DEFINE_SETFIELD(jdouble, double, Double, 'D', d) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \ |
| JNIWrapper("Set" XSTR(Result) "Field"); \ |
| \ |
| EntryProbe; \ |
| \ |
| oop o = JNIHandles::resolve_non_null(obj); \ |
| Klass* k = o->klass(); \ |
| int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \ |
| /* and creates a ResetNoHandleMark. */ \ |
| if (JvmtiExport::should_post_field_modification()) { \ |
| jvalue field_value; \ |
| field_value.unionType = value; \ |
| o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \ |
| } \ |
| if (SigType == 'Z') { value = ((jboolean)value) & 1; } \ |
| o->Fieldname##_field_put(offset, value); \ |
| ReturnProbe; \ |
| JNI_END |
| |
| DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z |
| , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), |
| HOTSPOT_JNI_SETBOOLEANFIELD_RETURN()) |
| DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b |
| , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), |
| HOTSPOT_JNI_SETBYTEFIELD_RETURN()) |
| DEFINE_SETFIELD(jchar, char, Char, 'C', c |
| , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), |
| HOTSPOT_JNI_SETCHARFIELD_RETURN()) |
| DEFINE_SETFIELD(jshort, short, Short, 'S', s |
| , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), |
| HOTSPOT_JNI_SETSHORTFIELD_RETURN()) |
| DEFINE_SETFIELD(jint, int, Int, 'I', i |
| , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), |
| HOTSPOT_JNI_SETINTFIELD_RETURN()) |
| DEFINE_SETFIELD(jlong, long, Long, 'J', j |
| , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), |
| HOTSPOT_JNI_SETLONGFIELD_RETURN()) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_SETFIELD(jfloat, float, Float, 'F', f |
| , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_SETFLOATFIELD_RETURN()) |
| DEFINE_SETFIELD(jdouble, double, Double, 'D', d |
| , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), |
| HOTSPOT_JNI_SETDOUBLEFIELD_RETURN()) |
| #endif /* USDT2 */ |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(ToReflectedField, jobject); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(ToReflectedField, jobject |
| , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic)) |
| JNIWrapper("ToReflectedField"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry, |
| env, cls, fieldID, isStatic); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY( |
| env, cls, (uintptr_t) fieldID, isStatic); |
| #endif /* USDT2 */ |
| jobject ret = NULL; |
| DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret); |
| |
| fieldDescriptor fd; |
| bool found = false; |
| Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls)); |
| |
| assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID"); |
| |
| if (isStatic) { |
| // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*. |
| JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); |
| assert(id->is_static_field_id(), "invalid static field id"); |
| found = id->find_local_field(&fd); |
| } else { |
| // Non-static field. The fieldID is really the offset of the field within the instanceOop. |
| int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); |
| found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd); |
| } |
| assert(found, "bad fieldID passed into jni_ToReflectedField"); |
| oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL); |
| ret = JNIHandles::make_local(env, reflected); |
| return ret; |
| JNI_END |
| |
| |
| // |
| // Accessing Static Fields |
| // |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID |
| , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz, |
| const char *name, const char *sig)) |
| JNIWrapper("GetStaticFieldID"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTATICFIELDID_ENTRY( |
| env, clazz, (char *) name, (char *) sig); |
| #endif /* USDT2 */ |
| jfieldID ret = NULL; |
| DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret); |
| |
| // The class should have been loaded (we have an instance of the class |
| // passed in) so the field and signature should already be in the symbol |
| // table. If they're not there, the field doesn't exist. |
| TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); |
| TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); |
| if (fieldname == NULL || signame == NULL) { |
| THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| } |
| KlassHandle k(THREAD, |
| java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| // Make sure class is initialized before handing id's out to static fields |
| k()->initialize(CHECK_NULL); |
| |
| fieldDescriptor fd; |
| if (!k()->oop_is_instance() || |
| !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) { |
| THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); |
| } |
| |
| // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass* |
| JNIid* id = fd.field_holder()->jni_id_for(fd.offset()); |
| debug_only(id->set_is_static_field_id();) |
| |
| debug_only(id->verify(fd.field_holder())); |
| |
| ret = jfieldIDWorkaround::to_static_jfieldID(id); |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID)) |
| JNIWrapper("GetStaticObjectField"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY( |
| env, clazz, (uintptr_t) fieldID); |
| #endif /* USDT2 */ |
| #if INCLUDE_JNI_CHECK |
| DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);) |
| #endif // INCLUDE_JNI_CHECK |
| JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); |
| assert(id->is_static_field_id(), "invalid static field id"); |
| // Keep JVMTI addition small and only check enabled flag here. |
| // jni_GetField_probe() assumes that is okay to create handles. |
| if (JvmtiExport::should_post_field_access()) { |
| JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); |
| } |
| jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset())); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\ |
| \ |
| JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \ |
| JNIWrapper("GetStatic" XSTR(Result) "Field"); \ |
| DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\ |
| Return ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \ |
| (const Return&)ret);\ |
| JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ |
| assert(id->is_static_field_id(), "invalid static field id"); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_GetField_probe() assumes that is okay to create handles. */ \ |
| if (JvmtiExport::should_post_field_access()) { \ |
| JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \ |
| } \ |
| ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \ |
| return ret;\ |
| JNI_END |
| |
| DEFINE_GETSTATICFIELD(jboolean, bool, Boolean) |
| DEFINE_GETSTATICFIELD(jbyte, byte, Byte) |
| DEFINE_GETSTATICFIELD(jchar, char, Char) |
| DEFINE_GETSTATICFIELD(jshort, short, Short) |
| DEFINE_GETSTATICFIELD(jint, int, Int) |
| DEFINE_GETSTATICFIELD(jlong, long, Long) |
| DEFINE_GETSTATICFIELD(jfloat, float, Float) |
| DEFINE_GETSTATICFIELD(jdouble, double, Double) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \ |
| , ReturnProbe); \ |
| \ |
| JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \ |
| JNIWrapper("GetStatic" XSTR(Result) "Field"); \ |
| EntryProbe; \ |
| Return ret = 0;\ |
| DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \ |
| (const Return&)ret);\ |
| JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ |
| assert(id->is_static_field_id(), "invalid static field id"); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_GetField_probe() assumes that is okay to create handles. */ \ |
| if (JvmtiExport::should_post_field_access()) { \ |
| JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \ |
| } \ |
| ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \ |
| return ret;\ |
| JNI_END |
| |
| DEFINE_GETSTATICFIELD(jboolean, bool, Boolean |
| , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref)) |
| DEFINE_GETSTATICFIELD(jbyte, byte, Byte |
| , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref) ) |
| DEFINE_GETSTATICFIELD(jchar, char, Char |
| , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref) ) |
| DEFINE_GETSTATICFIELD(jshort, short, Short |
| , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref) ) |
| DEFINE_GETSTATICFIELD(jint, int, Int |
| , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref) ) |
| DEFINE_GETSTATICFIELD(jlong, long, Long |
| , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref) ) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_GETSTATICFIELD(jfloat, float, Float |
| , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN() ) |
| DEFINE_GETSTATICFIELD(jdouble, double, Double |
| , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN() ) |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value)) |
| JNIWrapper("SetStaticObjectField"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY( |
| env, clazz, (uintptr_t) fieldID, value); |
| #endif /* USDT2 */ |
| JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); |
| assert(id->is_static_field_id(), "invalid static field id"); |
| // Keep JVMTI addition small and only check enabled flag here. |
| // jni_SetField_probe() assumes that is okay to create handles. |
| if (JvmtiExport::should_post_field_modification()) { |
| jvalue field_value; |
| field_value.l = value; |
| JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value); |
| } |
| id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value)); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| #ifndef USDT2 |
| #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \ |
| \ |
| JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \ |
| JNIWrapper("SetStatic" XSTR(Result) "Field"); \ |
| FP_SELECT_##Result( \ |
| DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \ |
| DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \ |
| \ |
| JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ |
| assert(id->is_static_field_id(), "invalid static field id"); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_SetField_probe() assumes that is okay to create handles. */ \ |
| if (JvmtiExport::should_post_field_modification()) { \ |
| jvalue field_value; \ |
| field_value.unionType = value; \ |
| JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \ |
| } \ |
| id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \ |
| DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\ |
| JNI_END |
| |
| DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z) |
| DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b) |
| DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c) |
| DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s) |
| DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i) |
| DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j) |
| DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f) |
| DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \ |
| JNIWrapper("SetStatic" XSTR(Result) "Field"); \ |
| EntryProbe; \ |
| \ |
| JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ |
| assert(id->is_static_field_id(), "invalid static field id"); \ |
| /* Keep JVMTI addition small and only check enabled flag here. */ \ |
| /* jni_SetField_probe() assumes that is okay to create handles. */ \ |
| if (JvmtiExport::should_post_field_modification()) { \ |
| jvalue field_value; \ |
| field_value.unionType = value; \ |
| JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \ |
| } \ |
| if (SigType == 'Z') { value = ((jboolean)value) & 1; } \ |
| id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \ |
| ReturnProbe;\ |
| JNI_END |
| |
| DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z |
| , HOTSPOT_JNI_SETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value), |
| HOTSPOT_JNI_SETBOOLEANFIELD_RETURN()) |
| DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b |
| , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), |
| HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN()) |
| DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c |
| , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), |
| HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN()) |
| DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s |
| , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), |
| HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN()) |
| DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i |
| , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), |
| HOTSPOT_JNI_SETSTATICINTFIELD_RETURN()) |
| DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j |
| , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), |
| HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN()) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f |
| , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), |
| HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN()) |
| DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d |
| , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), |
| HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN()) |
| #endif /* USDT2 */ |
| |
| // |
| // String Operations |
| // |
| |
| // Unicode Interface |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(NewString, jstring); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(NewString, jstring |
| , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len)) |
| JNIWrapper("NewString"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWSTRING_ENTRY( |
| env, (uint16_t *) unicodeChars, len); |
| #endif /* USDT2 */ |
| jstring ret = NULL; |
| DT_RETURN_MARK(NewString, jstring, (const jstring&)ret); |
| oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL); |
| ret = (jstring) JNIHandles::make_local(env, string); |
| return ret; |
| JNI_END |
| |
| |
| JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string)) |
| JNIWrapper("GetStringLength"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY( |
| env, string); |
| #endif /* USDT2 */ |
| jsize ret = 0; |
| oop s = JNIHandles::resolve_non_null(string); |
| if (java_lang_String::value(s) != NULL) { |
| ret = java_lang_String::length(s); |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGLENGTH_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars( |
| JNIEnv *env, jstring string, jboolean *isCopy)) |
| JNIWrapper("GetStringChars"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGCHARS_ENTRY( |
| env, string, (uintptr_t *) isCopy); |
| #endif /* USDT2 */ |
| jchar* buf = NULL; |
| oop s = JNIHandles::resolve_non_null(string); |
| typeArrayOop s_value = java_lang_String::value(s); |
| if (s_value != NULL) { |
| int s_len = java_lang_String::length(s); |
| int s_offset = java_lang_String::offset(s); |
| buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal); // add one for zero termination |
| /* JNI Specification states return NULL on OOM */ |
| if (buf != NULL) { |
| if (s_len > 0) { |
| memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len); |
| } |
| buf[s_len] = 0; |
| //%note jni_5 |
| if (isCopy != NULL) { |
| *isCopy = JNI_TRUE; |
| } |
| } |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGCHARS_RETURN( |
| buf); |
| #endif /* USDT2 */ |
| return buf; |
| JNI_END |
| |
| |
| JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars)) |
| JNIWrapper("ReleaseStringChars"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY( |
| env, str, (uint16_t *) chars); |
| #endif /* USDT2 */ |
| //%note jni_6 |
| if (chars != NULL) { |
| // Since String objects are supposed to be immutable, don't copy any |
| // new data back. A bad user will have to go after the char array. |
| FreeHeap((void*) chars); |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| // UTF Interface |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(NewStringUTF, jstring); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(NewStringUTF, jstring |
| , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes)) |
| JNIWrapper("NewStringUTF"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWSTRINGUTF_ENTRY( |
| env, (char *) bytes); |
| #endif /* USDT2 */ |
| jstring ret; |
| DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret); |
| |
| oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL); |
| ret = (jstring) JNIHandles::make_local(env, result); |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string)) |
| JNIWrapper("GetStringUTFLength"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY( |
| env, string); |
| #endif /* USDT2 */ |
| jsize ret = 0; |
| oop java_string = JNIHandles::resolve_non_null(string); |
| if (java_lang_String::value(java_string) != NULL) { |
| ret = java_lang_String::utf8_length(java_string); |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy)) |
| JNIWrapper("GetStringUTFChars"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY( |
| env, string, (uintptr_t *) isCopy); |
| #endif /* USDT2 */ |
| char* result = NULL; |
| oop java_string = JNIHandles::resolve_non_null(string); |
| if (java_lang_String::value(java_string) != NULL) { |
| size_t length = java_lang_String::utf8_length(java_string); |
| /* JNI Specification states return NULL on OOM */ |
| result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL); |
| if (result != NULL) { |
| java_lang_String::as_utf8_string(java_string, result, (int) length + 1); |
| if (isCopy != NULL) { |
| *isCopy = JNI_TRUE; |
| } |
| } |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN( |
| result); |
| #endif /* USDT2 */ |
| return result; |
| JNI_END |
| |
| |
| JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars)) |
| JNIWrapper("ReleaseStringUTFChars"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY( |
| env, str, (char *) chars); |
| #endif /* USDT2 */ |
| if (chars != NULL) { |
| FreeHeap((char*) chars); |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array)) |
| JNIWrapper("GetArrayLength"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETARRAYLENGTH_ENTRY( |
| env, array); |
| #endif /* USDT2 */ |
| arrayOop a = arrayOop(JNIHandles::resolve_non_null(array)); |
| assert(a->is_array(), "must be array"); |
| jsize ret = a->length(); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETARRAYLENGTH_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| // |
| // Object Array Operations |
| // |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray |
| , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement)) |
| JNIWrapper("NewObjectArray"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY( |
| env, length, elementClass, initialElement); |
| #endif /* USDT2 */ |
| jobjectArray ret = NULL; |
| DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret); |
| KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass))); |
| Klass* ako = ek()->array_klass(CHECK_NULL); |
| KlassHandle ak = KlassHandle(THREAD, ako); |
| ObjArrayKlass::cast(ak())->initialize(CHECK_NULL); |
| objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL); |
| oop initial_value = JNIHandles::resolve(initialElement); |
| if (initial_value != NULL) { // array already initialized with NULL |
| for (int index = 0; index < length; index++) { |
| result->obj_at_put(index, initial_value); |
| } |
| } |
| ret = (jobjectArray) JNIHandles::make_local(env, result); |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject |
| , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index)) |
| JNIWrapper("GetObjectArrayElement"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY( |
| env, array, index); |
| #endif /* USDT2 */ |
| jobject ret = NULL; |
| DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret); |
| objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); |
| if (a->is_within_bounds(index)) { |
| ret = JNIHandles::make_local(env, a->obj_at(index)); |
| return ret; |
| } else { |
| char buf[jintAsStringSize]; |
| sprintf(buf, "%d", index); |
| THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); |
| } |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement); |
| #else /* USDT2 */ |
| DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement |
| , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN()); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value)) |
| JNIWrapper("SetObjectArrayElement"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY( |
| env, array, index, value); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(SetObjectArrayElement); |
| |
| objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); |
| oop v = JNIHandles::resolve(value); |
| if (a->is_within_bounds(index)) { |
| if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) { |
| a->obj_at_put(index, v); |
| } else { |
| THROW(vmSymbols::java_lang_ArrayStoreException()); |
| } |
| } else { |
| char buf[jintAsStringSize]; |
| sprintf(buf, "%d", index); |
| THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); |
| } |
| JNI_END |
| |
| |
| #ifndef USDT2 |
| #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \ |
| \ |
| DT_RETURN_MARK_DECL(New##Result##Array, Return); \ |
| \ |
| JNI_ENTRY(Return, \ |
| jni_New##Result##Array(JNIEnv *env, jsize len)) \ |
| JNIWrapper("New" XSTR(Result) "Array"); \ |
| DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\ |
| Return ret = NULL;\ |
| DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\ |
| \ |
| oop obj= oopFactory::Allocator(len, CHECK_0); \ |
| ret = (Return) JNIHandles::make_local(env, obj); \ |
| return ret;\ |
| JNI_END |
| |
| DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean) |
| DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte) |
| DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short) |
| DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char) |
| DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int) |
| DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long) |
| DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float) |
| DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \ |
| ,EntryProbe,ReturnProbe) \ |
| \ |
| DT_RETURN_MARK_DECL(New##Result##Array, Return \ |
| , ReturnProbe); \ |
| \ |
| JNI_ENTRY(Return, \ |
| jni_New##Result##Array(JNIEnv *env, jsize len)) \ |
| JNIWrapper("New" XSTR(Result) "Array"); \ |
| EntryProbe; \ |
| Return ret = NULL;\ |
| DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\ |
| \ |
| oop obj= oopFactory::Allocator(len, CHECK_0); \ |
| ret = (Return) JNIHandles::make_local(env, obj); \ |
| return ret;\ |
| JNI_END |
| |
| DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean, |
| HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref)) |
| DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte, |
| HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref)) |
| DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short, |
| HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref)) |
| DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char, |
| HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref)) |
| DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int, |
| HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref)) |
| DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long, |
| HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref)) |
| DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float, |
| HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref)) |
| DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double, |
| HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len), |
| HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref)) |
| #endif /* USDT2 */ |
| |
| // Return an address which will fault if the caller writes to it. |
| |
| static char* get_bad_address() { |
| static char* bad_address = NULL; |
| if (bad_address == NULL) { |
| size_t size = os::vm_allocation_granularity(); |
| bad_address = os::reserve_memory(size); |
| if (bad_address != NULL) { |
| os::protect_memory(bad_address, size, os::MEM_PROT_READ, |
| /*is_committed*/false); |
| MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal); |
| } |
| } |
| return bad_address; |
| } |
| |
| |
| #ifndef USDT2 |
| #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \ |
| \ |
| JNI_QUICK_ENTRY(ElementType*, \ |
| jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \ |
| JNIWrapper("Get" XSTR(Result) "ArrayElements"); \ |
| DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\ |
| /* allocate an chunk of memory in c land */ \ |
| typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| ElementType* result; \ |
| int len = a->length(); \ |
| if (len == 0) { \ |
| /* Empty array: legal but useless, can't return NULL. \ |
| * Return a pointer to something useless. \ |
| * Avoid asserts in typeArrayOop. */ \ |
| result = (ElementType*)get_bad_address(); \ |
| } else { \ |
| /* JNI Specification states return NULL on OOM */ \ |
| result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \ |
| if (result != NULL) { \ |
| /* copy the array to the c chunk */ \ |
| memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \ |
| if (isCopy) { \ |
| *isCopy = JNI_TRUE; \ |
| } \ |
| } \ |
| } \ |
| DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\ |
| return result; \ |
| JNI_END |
| |
| DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool) |
| DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte) |
| DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short) |
| DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char) |
| DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int) |
| DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long) |
| DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float) |
| DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \ |
| , EntryProbe, ReturnProbe) \ |
| \ |
| JNI_QUICK_ENTRY(ElementType*, \ |
| jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \ |
| JNIWrapper("Get" XSTR(Result) "ArrayElements"); \ |
| EntryProbe; \ |
| /* allocate an chunk of memory in c land */ \ |
| typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| ElementType* result; \ |
| int len = a->length(); \ |
| if (len == 0) { \ |
| /* Empty array: legal but useless, can't return NULL. \ |
| * Return a pointer to something useless. \ |
| * Avoid asserts in typeArrayOop. */ \ |
| result = (ElementType*)get_bad_address(); \ |
| } else { \ |
| /* JNI Specification states return NULL on OOM */ \ |
| result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \ |
| if (result != NULL) { \ |
| /* copy the array to the c chunk */ \ |
| memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \ |
| if (isCopy) { \ |
| *isCopy = JNI_TRUE; \ |
| } \ |
| } \ |
| } \ |
| ReturnProbe; \ |
| return result; \ |
| JNI_END |
| |
| DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool |
| , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result)) |
| DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte |
| , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result)) |
| DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short |
| , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result)) |
| DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char |
| , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result)) |
| DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int |
| , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result)) |
| DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long |
| , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result))) |
| // Float and double probes don't return value because dtrace doesn't currently support it |
| DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float |
| , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result)) |
| DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double |
| , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), |
| HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result)) |
| #endif /* USDT2 */ |
| |
| #ifndef USDT2 |
| #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \ |
| \ |
| JNI_QUICK_ENTRY(void, \ |
| jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \ |
| ElementType *buf, jint mode)) \ |
| JNIWrapper("Release" XSTR(Result) "ArrayElements"); \ |
| DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\ |
| typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| int len = a->length(); \ |
| if (len != 0) { /* Empty array: nothing to free or copy. */ \ |
| if ((mode == 0) || (mode == JNI_COMMIT)) { \ |
| memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \ |
| } \ |
| if ((mode == 0) || (mode == JNI_ABORT)) { \ |
| FreeHeap(buf); \ |
| } \ |
| } \ |
| DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\ |
| JNI_END |
| |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \ |
| , EntryProbe, ReturnProbe);\ |
| \ |
| JNI_QUICK_ENTRY(void, \ |
| jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \ |
| ElementType *buf, jint mode)) \ |
| JNIWrapper("Release" XSTR(Result) "ArrayElements"); \ |
| EntryProbe; \ |
| typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| int len = a->length(); \ |
| if (len != 0) { /* Empty array: nothing to free or copy. */ \ |
| if ((mode == 0) || (mode == JNI_COMMIT)) { \ |
| memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \ |
| } \ |
| if ((mode == 0) || (mode == JNI_ABORT)) { \ |
| FreeHeap(buf); \ |
| } \ |
| } \ |
| ReturnProbe; \ |
| JNI_END |
| |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool |
| , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode), |
| HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN()) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte |
| , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode), |
| HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN()) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short |
| , HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode), |
| HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN()) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char |
| , HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode), |
| HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN()) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int |
| , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode), |
| HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN()) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long |
| , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode), |
| HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN()) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float |
| , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode), |
| HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN()) |
| DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double |
| , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode), |
| HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN()) |
| #endif /* USDT2 */ |
| |
| #ifndef USDT2 |
| #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \ |
| DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\ |
| \ |
| JNI_ENTRY(void, \ |
| jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ |
| jsize len, ElementType *buf)) \ |
| JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \ |
| DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\ |
| DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \ |
| typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \ |
| THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ |
| } else { \ |
| if (len > 0) { \ |
| int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \ |
| memcpy((u_char*) buf, \ |
| (u_char*) src->Tag##_at_addr(start), \ |
| len << sc); \ |
| } \ |
| } \ |
| JNI_END |
| |
| DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool) |
| DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte) |
| DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short) |
| DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char) |
| DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int) |
| DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long) |
| DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float) |
| DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \ |
| , EntryProbe, ReturnProbe); \ |
| DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \ |
| , ReturnProbe); \ |
| \ |
| JNI_ENTRY(void, \ |
| jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ |
| jsize len, ElementType *buf)) \ |
| JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \ |
| EntryProbe; \ |
| DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \ |
| typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \ |
| THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ |
| } else { \ |
| if (len > 0) { \ |
| int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \ |
| memcpy((u_char*) buf, \ |
| (u_char*) src->Tag##_at_addr(start), \ |
| len << sc); \ |
| } \ |
| } \ |
| JNI_END |
| |
| DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool |
| , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), |
| HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN()); |
| DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte |
| , HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf), |
| HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN()); |
| DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short |
| , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), |
| HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN()); |
| DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char |
| , HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf), |
| HOTSPOT_JNI_GETCHARARRAYREGION_RETURN()); |
| DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int |
| , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf), |
| HOTSPOT_JNI_GETINTARRAYREGION_RETURN()); |
| DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long |
| , HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), |
| HOTSPOT_JNI_GETLONGARRAYREGION_RETURN()); |
| DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float |
| , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf), |
| HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN()); |
| DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double |
| , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf), |
| HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN()); |
| #endif /* USDT2 */ |
| |
| #ifndef USDT2 |
| #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \ |
| DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\ |
| \ |
| JNI_ENTRY(void, \ |
| jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ |
| jsize len, const ElementType *buf)) \ |
| JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \ |
| DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\ |
| DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \ |
| typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \ |
| THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ |
| } else { \ |
| if (len > 0) { \ |
| int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \ |
| memcpy((u_char*) dst->Tag##_at_addr(start), \ |
| (u_char*) buf, \ |
| len << sc); \ |
| } \ |
| } \ |
| JNI_END |
| |
| DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool) |
| DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte) |
| DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short) |
| DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char) |
| DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int) |
| DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long) |
| DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float) |
| DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double) |
| |
| #else /* USDT2 */ |
| |
| #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \ |
| , EntryProbe, ReturnProbe); \ |
| DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \ |
| ,ReturnProbe); \ |
| \ |
| JNI_ENTRY(void, \ |
| jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ |
| jsize len, const ElementType *buf)) \ |
| JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \ |
| EntryProbe; \ |
| DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \ |
| typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \ |
| if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \ |
| THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ |
| } else { \ |
| if (len > 0) { \ |
| int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \ |
| memcpy((u_char*) dst->Tag##_at_addr(start), \ |
| (u_char*) buf, \ |
| len << sc); \ |
| } \ |
| } \ |
| JNI_END |
| |
| DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool |
| , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf), |
| HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN()) |
| DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte |
| , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf), |
| HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN()) |
| DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short |
| , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), |
| HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN()) |
| DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char |
| , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), |
| HOTSPOT_JNI_SETCHARARRAYREGION_RETURN()) |
| DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int |
| , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf), |
| HOTSPOT_JNI_SETINTARRAYREGION_RETURN()) |
| DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long |
| , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), |
| HOTSPOT_JNI_SETLONGARRAYREGION_RETURN()) |
| DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float |
| , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf), |
| HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN()) |
| DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double |
| , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf), |
| HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN()) |
| #endif /* USDT2 */ |
| |
| |
| // |
| // Interception of natives |
| // |
| |
| // The RegisterNatives call being attempted tried to register with a method that |
| // is not native. Ask JVM TI what prefixes have been specified. Then check |
| // to see if the native method is now wrapped with the prefixes. See the |
| // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details. |
| static Method* find_prefixed_native(KlassHandle k, |
| Symbol* name, Symbol* signature, TRAPS) { |
| #if INCLUDE_JVMTI |
| ResourceMark rm(THREAD); |
| Method* method; |
| int name_len = name->utf8_length(); |
| char* name_str = name->as_utf8(); |
| int prefix_count; |
| char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count); |
| for (int i = 0; i < prefix_count; i++) { |
| char* prefix = prefixes[i]; |
| int prefix_len = (int)strlen(prefix); |
| |
| // try adding this prefix to the method name and see if it matches another method name |
| int trial_len = name_len + prefix_len; |
| char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1); |
| strcpy(trial_name_str, prefix); |
| strcat(trial_name_str, name_str); |
| TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len); |
| if (trial_name == NULL) { |
| continue; // no such symbol, so this prefix wasn't used, try the next prefix |
| } |
| method = k()->lookup_method(trial_name, signature); |
| if (method == NULL) { |
| continue; // signature doesn't match, try the next prefix |
| } |
| if (method->is_native()) { |
| method->set_is_prefixed_native(); |
| return method; // wahoo, we found a prefixed version of the method, return it |
| } |
| // found as non-native, so prefix is good, add it, probably just need more prefixes |
| name_len = trial_len; |
| name_str = trial_name_str; |
| } |
| #endif // INCLUDE_JVMTI |
| return NULL; // not found |
| } |
| |
| static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) { |
| Method* method = k()->lookup_method(name, signature); |
| if (method == NULL) { |
| ResourceMark rm; |
| stringStream st; |
| st.print("Method %s name or signature does not match", |
| Method::name_and_sig_as_C_string(k(), name, signature)); |
| THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); |
| } |
| if (!method->is_native()) { |
| // trying to register to a non-native method, see if a JVM TI agent has added prefix(es) |
| method = find_prefixed_native(k, name, signature, THREAD); |
| if (method == NULL) { |
| ResourceMark rm; |
| stringStream st; |
| st.print("Method %s is not declared as native", |
| Method::name_and_sig_as_C_string(k(), name, signature)); |
| THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); |
| } |
| } |
| |
| if (entry != NULL) { |
| method->set_native_function(entry, |
| Method::native_bind_event_is_interesting); |
| } else { |
| method->clear_native_function(); |
| } |
| if (PrintJNIResolving) { |
| ResourceMark rm(THREAD); |
| tty->print_cr("[Registering JNI native method %s.%s]", |
| method->method_holder()->external_name(), |
| method->name()->as_C_string()); |
| } |
| return true; |
| } |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(RegisterNatives, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(RegisterNatives, jint |
| , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz, |
| const JNINativeMethod *methods, |
| jint nMethods)) |
| JNIWrapper("RegisterNatives"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_REGISTERNATIVES_ENTRY( |
| env, clazz, (void *) methods, nMethods); |
| #endif /* USDT2 */ |
| jint ret = 0; |
| DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret); |
| |
| KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); |
| |
| for (int index = 0; index < nMethods; index++) { |
| const char* meth_name = methods[index].name; |
| const char* meth_sig = methods[index].signature; |
| int meth_name_len = (int)strlen(meth_name); |
| |
| // The class should have been loaded (we have an instance of the class |
| // passed in) so the method and signature should already be in the symbol |
| // table. If they're not there, the method doesn't exist. |
| TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len); |
| TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig)); |
| |
| if (name == NULL || signature == NULL) { |
| ResourceMark rm; |
| stringStream st; |
| st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig); |
| // Must return negative value on failure |
| THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1); |
| } |
| |
| bool res = register_native(h_k, name, signature, |
| (address) methods[index].fnPtr, THREAD); |
| if (!res) { |
| ret = -1; |
| break; |
| } |
| } |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz)) |
| JNIWrapper("UnregisterNatives"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY( |
| env, clazz); |
| #endif /* USDT2 */ |
| Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)); |
| //%note jni_2 |
| if (k->oop_is_instance()) { |
| for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) { |
| Method* m = InstanceKlass::cast(k)->methods()->at(index); |
| if (m->is_native()) { |
| m->clear_native_function(); |
| m->set_signature_handler(NULL); |
| } |
| } |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_UNREGISTERNATIVES_RETURN( |
| 0); |
| #endif /* USDT2 */ |
| return 0; |
| JNI_END |
| |
| // |
| // Monitor functions |
| // |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(MonitorEnter, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(MonitorEnter, jint |
| , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj)) |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_MONITORENTER_ENTRY( |
| env, jobj); |
| #endif /* USDT2 */ |
| jint ret = JNI_ERR; |
| DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret); |
| |
| // If the object is null, we can't do anything with it |
| if (jobj == NULL) { |
| THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); |
| } |
| |
| Handle obj(thread, JNIHandles::resolve_non_null(jobj)); |
| ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR)); |
| ret = JNI_OK; |
| return ret; |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(MonitorExit, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(MonitorExit, jint |
| , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj)) |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_MONITOREXIT_ENTRY( |
| env, jobj); |
| #endif /* USDT2 */ |
| jint ret = JNI_ERR; |
| DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret); |
| |
| // Don't do anything with a null object |
| if (jobj == NULL) { |
| THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); |
| } |
| |
| Handle obj(THREAD, JNIHandles::resolve_non_null(jobj)); |
| ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR)); |
| |
| ret = JNI_OK; |
| return ret; |
| JNI_END |
| |
| // |
| // Extensions |
| // |
| |
| #ifndef USDT2 |
| DT_VOID_RETURN_MARK_DECL(GetStringRegion); |
| #else /* USDT2 */ |
| DT_VOID_RETURN_MARK_DECL(GetStringRegion |
| , HOTSPOT_JNI_GETSTRINGREGION_RETURN()); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf)) |
| JNIWrapper("GetStringRegion"); |
| #ifndef USDT2 |
| DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGREGION_ENTRY( |
| env, string, start, len, buf); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(GetStringRegion); |
| oop s = JNIHandles::resolve_non_null(string); |
| int s_len = java_lang_String::length(s); |
| if (start < 0 || len < 0 || start + len > s_len) { |
| THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); |
| } else { |
| if (len > 0) { |
| int s_offset = java_lang_String::offset(s); |
| typeArrayOop s_value = java_lang_String::value(s); |
| memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len); |
| } |
| } |
| JNI_END |
| |
| #ifndef USDT2 |
| DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion); |
| #else /* USDT2 */ |
| DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion |
| , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN()); |
| #endif /* USDT2 */ |
| |
| JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf)) |
| JNIWrapper("GetStringUTFRegion"); |
| #ifndef USDT2 |
| DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY( |
| env, string, start, len, buf); |
| #endif /* USDT2 */ |
| DT_VOID_RETURN_MARK(GetStringUTFRegion); |
| oop s = JNIHandles::resolve_non_null(string); |
| int s_len = java_lang_String::length(s); |
| if (start < 0 || len < 0 || start + len > s_len) { |
| THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); |
| } else { |
| //%note jni_7 |
| if (len > 0) { |
| ResourceMark rm(THREAD); |
| char *utf_region = java_lang_String::as_utf8_string(s, start, len); |
| int utf_len = (int)strlen(utf_region); |
| memcpy(buf, utf_region, utf_len); |
| buf[utf_len] = 0; |
| } else { |
| // JDK null-terminates the buffer even in len is zero |
| if (buf != NULL) { |
| buf[0] = 0; |
| } |
| } |
| } |
| JNI_END |
| |
| |
| JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy)) |
| JNIWrapper("GetPrimitiveArrayCritical"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY( |
| env, array, (uintptr_t *) isCopy); |
| #endif /* USDT2 */ |
| GC_locker::lock_critical(thread); |
| if (isCopy != NULL) { |
| *isCopy = JNI_FALSE; |
| } |
| oop a = JNIHandles::resolve_non_null(array); |
| assert(a->is_array(), "just checking"); |
| BasicType type; |
| if (a->is_objArray()) { |
| type = T_OBJECT; |
| } else { |
| type = TypeArrayKlass::cast(a->klass())->element_type(); |
| } |
| void* ret = arrayOop(a)->base(type); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode)) |
| JNIWrapper("ReleasePrimitiveArrayCritical"); |
| #ifndef USDT2 |
| DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY( |
| env, array, carray, mode); |
| #endif /* USDT2 */ |
| // The array, carray and mode arguments are ignored |
| GC_locker::unlock_critical(thread); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy)) |
| JNIWrapper("GetStringCritical"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY( |
| env, string, (uintptr_t *) isCopy); |
| #endif /* USDT2 */ |
| GC_locker::lock_critical(thread); |
| if (isCopy != NULL) { |
| *isCopy = JNI_FALSE; |
| } |
| oop s = JNIHandles::resolve_non_null(string); |
| int s_len = java_lang_String::length(s); |
| typeArrayOop s_value = java_lang_String::value(s); |
| int s_offset = java_lang_String::offset(s); |
| const jchar* ret; |
| if (s_len > 0) { |
| ret = s_value->char_at_addr(s_offset); |
| } else { |
| ret = (jchar*) s_value->base(T_CHAR); |
| } |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN( |
| (uint16_t *) ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars)) |
| JNIWrapper("ReleaseStringCritical"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY( |
| env, str, (uint16_t *) chars); |
| #endif /* USDT2 */ |
| // The str and chars arguments are ignored |
| GC_locker::unlock_critical(thread); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref)) |
| JNIWrapper("jni_NewWeakGlobalRef"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY( |
| env, ref); |
| #endif /* USDT2 */ |
| Handle ref_handle(thread, JNIHandles::resolve(ref)); |
| jweak ret = JNIHandles::make_weak_global(ref_handle); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| // Must be JNI_ENTRY (with HandleMark) |
| JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref)) |
| JNIWrapper("jni_DeleteWeakGlobalRef"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY( |
| env, ref); |
| #endif /* USDT2 */ |
| JNIHandles::destroy_weak_global(ref); |
| #ifndef USDT2 |
| DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN( |
| ); |
| #endif /* USDT2 */ |
| JNI_END |
| |
| |
| JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env)) |
| JNIWrapper("jni_ExceptionCheck"); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY( |
| env); |
| #endif /* USDT2 */ |
| jni_check_async_exceptions(thread); |
| jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE; |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_EXCEPTIONCHECK_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| JNI_END |
| |
| |
| // Initialization state for three routines below relating to |
| // java.nio.DirectBuffers |
| static jint directBufferSupportInitializeStarted = 0; |
| static volatile jint directBufferSupportInitializeEnded = 0; |
| static volatile jint directBufferSupportInitializeFailed = 0; |
| static jclass bufferClass = NULL; |
| static jclass directBufferClass = NULL; |
| static jclass directByteBufferClass = NULL; |
| static jmethodID directByteBufferConstructor = NULL; |
| static jfieldID directBufferAddressField = NULL; |
| static jfieldID bufferCapacityField = NULL; |
| |
| static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) { |
| Handle loader; // null (bootstrap) loader |
| Handle protection_domain; // null protection domain |
| |
| TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); |
| jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL); |
| |
| if (TraceClassResolution && result != NULL) { |
| trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result))); |
| } |
| return result; |
| } |
| |
| // These lookups are done with the NULL (bootstrap) ClassLoader to |
| // circumvent any security checks that would be done by jni_FindClass. |
| JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env)) |
| { |
| if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; } |
| if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; } |
| if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; } |
| return true; |
| } |
| JNI_END |
| |
| |
| static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) { |
| if (directBufferSupportInitializeFailed) { |
| return false; |
| } |
| |
| if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) { |
| if (!lookupDirectBufferClasses(env)) { |
| directBufferSupportInitializeFailed = 1; |
| return false; |
| } |
| |
| // Make global references for these |
| bufferClass = (jclass) env->NewGlobalRef(bufferClass); |
| directBufferClass = (jclass) env->NewGlobalRef(directBufferClass); |
| directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass); |
| |
| // Get needed field and method IDs |
| directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V"); |
| if (env->ExceptionCheck()) { |
| env->ExceptionClear(); |
| directBufferSupportInitializeFailed = 1; |
| return false; |
| } |
| directBufferAddressField = env->GetFieldID(bufferClass, "address", "J"); |
| if (env->ExceptionCheck()) { |
| env->ExceptionClear(); |
| directBufferSupportInitializeFailed = 1; |
| return false; |
| } |
| bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I"); |
| if (env->ExceptionCheck()) { |
| env->ExceptionClear(); |
| directBufferSupportInitializeFailed = 1; |
| return false; |
| } |
| |
| if ((directByteBufferConstructor == NULL) || |
| (directBufferAddressField == NULL) || |
| (bufferCapacityField == NULL)) { |
| directBufferSupportInitializeFailed = 1; |
| return false; |
| } |
| |
| directBufferSupportInitializeEnded = 1; |
| } else { |
| while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) { |
| // Set state as yield_all can call os:sleep. On Solaris, yield_all calls |
| // os::sleep which requires the VM state transition. On other platforms, it |
| // is not necessary. The following call to change the VM state is purposely |
| // put inside the loop to avoid potential deadlock when multiple threads |
| // try to call this method. See 6791815 for more details. |
| ThreadInVMfromNative tivn(thread); |
| os::yield_all(); |
| } |
| } |
| |
| return !directBufferSupportInitializeFailed; |
| } |
| |
| extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity) |
| { |
| // thread_from_jni_environment() will block if VM is gone. |
| JavaThread* thread = JavaThread::thread_from_jni_environment(env); |
| |
| JNIWrapper("jni_NewDirectByteBuffer"); |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY( |
| env, address, capacity); |
| #endif /* USDT2 */ |
| |
| if (!directBufferSupportInitializeEnded) { |
| if (!initializeDirectBufferSupport(env, thread)) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN( |
| NULL); |
| #endif /* USDT2 */ |
| return NULL; |
| } |
| } |
| |
| // Being paranoid about accidental sign extension on address |
| jlong addr = (jlong) ((uintptr_t) address); |
| // NOTE that package-private DirectByteBuffer constructor currently |
| // takes int capacity |
| jint cap = (jint) capacity; |
| jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| } |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetDirectBufferAddress, void* |
| , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref)); |
| #endif /* USDT2 */ |
| |
| extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf) |
| { |
| // thread_from_jni_environment() will block if VM is gone. |
| JavaThread* thread = JavaThread::thread_from_jni_environment(env); |
| |
| JNIWrapper("jni_GetDirectBufferAddress"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY( |
| env, buf); |
| #endif /* USDT2 */ |
| void* ret = NULL; |
| DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret); |
| |
| if (!directBufferSupportInitializeEnded) { |
| if (!initializeDirectBufferSupport(env, thread)) { |
| return 0; |
| } |
| } |
| |
| if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) { |
| return 0; |
| } |
| |
| ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField); |
| return ret; |
| } |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong |
| , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf) |
| { |
| // thread_from_jni_environment() will block if VM is gone. |
| JavaThread* thread = JavaThread::thread_from_jni_environment(env); |
| |
| JNIWrapper("jni_GetDirectBufferCapacity"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY( |
| env, buf); |
| #endif /* USDT2 */ |
| jlong ret = -1; |
| DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret); |
| |
| if (!directBufferSupportInitializeEnded) { |
| if (!initializeDirectBufferSupport(env, thread)) { |
| ret = 0; |
| return ret; |
| } |
| } |
| |
| if (buf == NULL) { |
| return -1; |
| } |
| |
| if (!env->IsInstanceOf(buf, directBufferClass)) { |
| return -1; |
| } |
| |
| // NOTE that capacity is currently an int in the implementation |
| ret = env->GetIntField(buf, bufferCapacityField); |
| return ret; |
| } |
| |
| |
| JNI_LEAF(jint, jni_GetVersion(JNIEnv *env)) |
| JNIWrapper("GetVersion"); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETVERSION_ENTRY( |
| env); |
| #endif /* USDT2 */ |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETVERSION_RETURN( |
| CurrentVersion); |
| #endif /* USDT2 */ |
| return CurrentVersion; |
| JNI_END |
| |
| extern struct JavaVM_ main_vm; |
| |
| JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm)) |
| JNIWrapper("jni_GetJavaVM"); |
| #ifndef USDT2 |
| DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETJAVAVM_ENTRY( |
| env, (void **) vm); |
| #endif /* USDT2 */ |
| *vm = (JavaVM *)(&main_vm); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETJAVAVM_RETURN( |
| JNI_OK); |
| #endif /* USDT2 */ |
| return JNI_OK; |
| JNI_END |
| |
| // Structure containing all jni functions |
| struct JNINativeInterface_ jni_NativeInterface = { |
| NULL, |
| NULL, |
| NULL, |
| |
| NULL, |
| |
| jni_GetVersion, |
| |
| jni_DefineClass, |
| jni_FindClass, |
| |
| jni_FromReflectedMethod, |
| jni_FromReflectedField, |
| |
| jni_ToReflectedMethod, |
| |
| jni_GetSuperclass, |
| jni_IsAssignableFrom, |
| |
| jni_ToReflectedField, |
| |
| jni_Throw, |
| jni_ThrowNew, |
| jni_ExceptionOccurred, |
| jni_ExceptionDescribe, |
| jni_ExceptionClear, |
| jni_FatalError, |
| |
| jni_PushLocalFrame, |
| jni_PopLocalFrame, |
| |
| jni_NewGlobalRef, |
| jni_DeleteGlobalRef, |
| jni_DeleteLocalRef, |
| jni_IsSameObject, |
| |
| jni_NewLocalRef, |
| jni_EnsureLocalCapacity, |
| |
| jni_AllocObject, |
| jni_NewObject, |
| jni_NewObjectV, |
| jni_NewObjectA, |
| |
| jni_GetObjectClass, |
| jni_IsInstanceOf, |
| |
| jni_GetMethodID, |
| |
| jni_CallObjectMethod, |
| jni_CallObjectMethodV, |
| jni_CallObjectMethodA, |
| jni_CallBooleanMethod, |
| jni_CallBooleanMethodV, |
| jni_CallBooleanMethodA, |
| jni_CallByteMethod, |
| jni_CallByteMethodV, |
| jni_CallByteMethodA, |
| jni_CallCharMethod, |
| jni_CallCharMethodV, |
| jni_CallCharMethodA, |
| jni_CallShortMethod, |
| jni_CallShortMethodV, |
| jni_CallShortMethodA, |
| jni_CallIntMethod, |
| jni_CallIntMethodV, |
| jni_CallIntMethodA, |
| jni_CallLongMethod, |
| jni_CallLongMethodV, |
| jni_CallLongMethodA, |
| jni_CallFloatMethod, |
| jni_CallFloatMethodV, |
| jni_CallFloatMethodA, |
| jni_CallDoubleMethod, |
| jni_CallDoubleMethodV, |
| jni_CallDoubleMethodA, |
| jni_CallVoidMethod, |
| jni_CallVoidMethodV, |
| jni_CallVoidMethodA, |
| |
| jni_CallNonvirtualObjectMethod, |
| jni_CallNonvirtualObjectMethodV, |
| jni_CallNonvirtualObjectMethodA, |
| jni_CallNonvirtualBooleanMethod, |
| jni_CallNonvirtualBooleanMethodV, |
| jni_CallNonvirtualBooleanMethodA, |
| jni_CallNonvirtualByteMethod, |
| jni_CallNonvirtualByteMethodV, |
| jni_CallNonvirtualByteMethodA, |
| jni_CallNonvirtualCharMethod, |
| jni_CallNonvirtualCharMethodV, |
| jni_CallNonvirtualCharMethodA, |
| jni_CallNonvirtualShortMethod, |
| jni_CallNonvirtualShortMethodV, |
| jni_CallNonvirtualShortMethodA, |
| jni_CallNonvirtualIntMethod, |
| jni_CallNonvirtualIntMethodV, |
| jni_CallNonvirtualIntMethodA, |
| jni_CallNonvirtualLongMethod, |
| jni_CallNonvirtualLongMethodV, |
| jni_CallNonvirtualLongMethodA, |
| jni_CallNonvirtualFloatMethod, |
| jni_CallNonvirtualFloatMethodV, |
| jni_CallNonvirtualFloatMethodA, |
| jni_CallNonvirtualDoubleMethod, |
| jni_CallNonvirtualDoubleMethodV, |
| jni_CallNonvirtualDoubleMethodA, |
| jni_CallNonvirtualVoidMethod, |
| jni_CallNonvirtualVoidMethodV, |
| jni_CallNonvirtualVoidMethodA, |
| |
| jni_GetFieldID, |
| |
| jni_GetObjectField, |
| jni_GetBooleanField, |
| jni_GetByteField, |
| jni_GetCharField, |
| jni_GetShortField, |
| jni_GetIntField, |
| jni_GetLongField, |
| jni_GetFloatField, |
| jni_GetDoubleField, |
| |
| jni_SetObjectField, |
| jni_SetBooleanField, |
| jni_SetByteField, |
| jni_SetCharField, |
| jni_SetShortField, |
| jni_SetIntField, |
| jni_SetLongField, |
| jni_SetFloatField, |
| jni_SetDoubleField, |
| |
| jni_GetStaticMethodID, |
| |
| jni_CallStaticObjectMethod, |
| jni_CallStaticObjectMethodV, |
| jni_CallStaticObjectMethodA, |
| jni_CallStaticBooleanMethod, |
| jni_CallStaticBooleanMethodV, |
| jni_CallStaticBooleanMethodA, |
| jni_CallStaticByteMethod, |
| jni_CallStaticByteMethodV, |
| jni_CallStaticByteMethodA, |
| jni_CallStaticCharMethod, |
| jni_CallStaticCharMethodV, |
| jni_CallStaticCharMethodA, |
| jni_CallStaticShortMethod, |
| jni_CallStaticShortMethodV, |
| jni_CallStaticShortMethodA, |
| jni_CallStaticIntMethod, |
| jni_CallStaticIntMethodV, |
| jni_CallStaticIntMethodA, |
| jni_CallStaticLongMethod, |
| jni_CallStaticLongMethodV, |
| jni_CallStaticLongMethodA, |
| jni_CallStaticFloatMethod, |
| jni_CallStaticFloatMethodV, |
| jni_CallStaticFloatMethodA, |
| jni_CallStaticDoubleMethod, |
| jni_CallStaticDoubleMethodV, |
| jni_CallStaticDoubleMethodA, |
| jni_CallStaticVoidMethod, |
| jni_CallStaticVoidMethodV, |
| jni_CallStaticVoidMethodA, |
| |
| jni_GetStaticFieldID, |
| |
| jni_GetStaticObjectField, |
| jni_GetStaticBooleanField, |
| jni_GetStaticByteField, |
| jni_GetStaticCharField, |
| jni_GetStaticShortField, |
| jni_GetStaticIntField, |
| jni_GetStaticLongField, |
| jni_GetStaticFloatField, |
| jni_GetStaticDoubleField, |
| |
| jni_SetStaticObjectField, |
| jni_SetStaticBooleanField, |
| jni_SetStaticByteField, |
| jni_SetStaticCharField, |
| jni_SetStaticShortField, |
| jni_SetStaticIntField, |
| jni_SetStaticLongField, |
| jni_SetStaticFloatField, |
| jni_SetStaticDoubleField, |
| |
| jni_NewString, |
| jni_GetStringLength, |
| jni_GetStringChars, |
| jni_ReleaseStringChars, |
| |
| jni_NewStringUTF, |
| jni_GetStringUTFLength, |
| jni_GetStringUTFChars, |
| jni_ReleaseStringUTFChars, |
| |
| jni_GetArrayLength, |
| |
| jni_NewObjectArray, |
| jni_GetObjectArrayElement, |
| jni_SetObjectArrayElement, |
| |
| jni_NewBooleanArray, |
| jni_NewByteArray, |
| jni_NewCharArray, |
| jni_NewShortArray, |
| jni_NewIntArray, |
| jni_NewLongArray, |
| jni_NewFloatArray, |
| jni_NewDoubleArray, |
| |
| jni_GetBooleanArrayElements, |
| jni_GetByteArrayElements, |
| jni_GetCharArrayElements, |
| jni_GetShortArrayElements, |
| jni_GetIntArrayElements, |
| jni_GetLongArrayElements, |
| jni_GetFloatArrayElements, |
| jni_GetDoubleArrayElements, |
| |
| jni_ReleaseBooleanArrayElements, |
| jni_ReleaseByteArrayElements, |
| jni_ReleaseCharArrayElements, |
| jni_ReleaseShortArrayElements, |
| jni_ReleaseIntArrayElements, |
| jni_ReleaseLongArrayElements, |
| jni_ReleaseFloatArrayElements, |
| jni_ReleaseDoubleArrayElements, |
| |
| jni_GetBooleanArrayRegion, |
| jni_GetByteArrayRegion, |
| jni_GetCharArrayRegion, |
| jni_GetShortArrayRegion, |
| jni_GetIntArrayRegion, |
| jni_GetLongArrayRegion, |
| jni_GetFloatArrayRegion, |
| jni_GetDoubleArrayRegion, |
| |
| jni_SetBooleanArrayRegion, |
| jni_SetByteArrayRegion, |
| jni_SetCharArrayRegion, |
| jni_SetShortArrayRegion, |
| jni_SetIntArrayRegion, |
| jni_SetLongArrayRegion, |
| jni_SetFloatArrayRegion, |
| jni_SetDoubleArrayRegion, |
| |
| jni_RegisterNatives, |
| jni_UnregisterNatives, |
| |
| jni_MonitorEnter, |
| jni_MonitorExit, |
| |
| jni_GetJavaVM, |
| |
| jni_GetStringRegion, |
| jni_GetStringUTFRegion, |
| |
| jni_GetPrimitiveArrayCritical, |
| jni_ReleasePrimitiveArrayCritical, |
| |
| jni_GetStringCritical, |
| jni_ReleaseStringCritical, |
| |
| jni_NewWeakGlobalRef, |
| jni_DeleteWeakGlobalRef, |
| |
| jni_ExceptionCheck, |
| |
| jni_NewDirectByteBuffer, |
| jni_GetDirectBufferAddress, |
| jni_GetDirectBufferCapacity, |
| |
| // New 1_6 features |
| |
| jni_GetObjectRefType |
| }; |
| |
| |
| // For jvmti use to modify jni function table. |
| // Java threads in native contiues to run until it is transitioned |
| // to VM at safepoint. Before the transition or before it is blocked |
| // for safepoint it may access jni function table. VM could crash if |
| // any java thread access the jni function table in the middle of memcpy. |
| // To avoid this each function pointers are copied automically. |
| void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) { |
| assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| intptr_t *a = (intptr_t *) jni_functions(); |
| intptr_t *b = (intptr_t *) new_jni_NativeInterface; |
| for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) { |
| Atomic::store_ptr(*b++, a++); |
| } |
| } |
| |
| void quicken_jni_functions() { |
| // Replace Get<Primitive>Field with fast versions |
| if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access() |
| && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls |
| #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2) |
| // windows x86 currently needs SEH wrapper and the gain of the fast |
| // versions currently isn't certain for server vm on uniprocessor. |
| && os::is_MP() |
| #endif |
| ) { |
| address func; |
| func = JNI_FastGetField::generate_fast_get_boolean_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func; |
| } |
| func = JNI_FastGetField::generate_fast_get_byte_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetByteField = (GetByteField_t)func; |
| } |
| func = JNI_FastGetField::generate_fast_get_char_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetCharField = (GetCharField_t)func; |
| } |
| func = JNI_FastGetField::generate_fast_get_short_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetShortField = (GetShortField_t)func; |
| } |
| func = JNI_FastGetField::generate_fast_get_int_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetIntField = (GetIntField_t)func; |
| } |
| func = JNI_FastGetField::generate_fast_get_long_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetLongField = (GetLongField_t)func; |
| } |
| func = JNI_FastGetField::generate_fast_get_float_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetFloatField = (GetFloatField_t)func; |
| } |
| func = JNI_FastGetField::generate_fast_get_double_field(); |
| if (func != (address)-1) { |
| jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func; |
| } |
| } |
| } |
| |
| // Returns the function structure |
| struct JNINativeInterface_* jni_functions() { |
| #if INCLUDE_JNI_CHECK |
| if (CheckJNICalls) return jni_functions_check(); |
| #endif // INCLUDE_JNI_CHECK |
| return &jni_NativeInterface; |
| } |
| |
| // Returns the function structure |
| struct JNINativeInterface_* jni_functions_nocheck() { |
| return &jni_NativeInterface; |
| } |
| |
| |
| // Invocation API |
| |
| |
| // Forward declaration |
| extern const struct JNIInvokeInterface_ jni_InvokeInterface; |
| |
| // Global invocation API vars |
| volatile jint vm_created = 0; |
| // Indicate whether it is safe to recreate VM |
| volatile jint safe_to_recreate_vm = 1; |
| struct JavaVM_ main_vm = {&jni_InvokeInterface}; |
| |
| |
| #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */ |
| enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL }; |
| |
| #ifndef USDT2 |
| HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*); |
| DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint |
| , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) { |
| #ifndef USDT2 |
| HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY( |
| args_); |
| #endif /* USDT2 */ |
| JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_; |
| jint ret = JNI_ERR; |
| DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret); |
| |
| if (Threads::is_supported_jni_version(args->version)) { |
| ret = JNI_OK; |
| } |
| // 1.1 style no longer supported in hotspot. |
| // According the JNI spec, we should update args->version on return. |
| // We also use the structure to communicate with launcher about default |
| // stack size. |
| if (args->version == JNI_VERSION_1_1) { |
| args->version = JNI_VERSION_1_2; |
| // javaStackSize is int in arguments structure |
| assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow"); |
| args->javaStackSize = (jint)(ThreadStackSize * K); |
| } |
| return ret; |
| } |
| |
| #ifndef PRODUCT |
| |
| #include "gc_implementation/shared/gcTimer.hpp" |
| #include "gc_interface/collectedHeap.hpp" |
| #if INCLUDE_ALL_GCS |
| #include "gc_implementation/g1/heapRegionRemSet.hpp" |
| #endif |
| #include "memory/guardedMemory.hpp" |
| #include "utilities/quickSort.hpp" |
| #include "utilities/ostream.hpp" |
| #if INCLUDE_VM_STRUCTS |
| #include "runtime/vmStructs.hpp" |
| #endif |
| |
| #define run_unit_test(unit_test_function_call) \ |
| tty->print_cr("Running test: " #unit_test_function_call); \ |
| unit_test_function_call |
| |
| // Forward declaration |
| void TestOS_test(); |
| void TestReservedSpace_test(); |
| void TestReserveMemorySpecial_test(); |
| void TestVirtualSpace_test(); |
| void TestMetaspaceAux_test(); |
| void TestMetachunk_test(); |
| void TestVirtualSpaceNode_test(); |
| void TestNewSize_test(); |
| void TestKlass_test(); |
| void Test_linked_list(); |
| void TestChunkedList_test(); |
| #if INCLUDE_ALL_GCS |
| void TestOldFreeSpaceCalculation_test(); |
| void TestG1BiasedArray_test(); |
| void TestBufferingOopClosure_test(); |
| void TestCodeCacheRemSet_test(); |
| void FreeRegionList_test(); |
| #endif |
| |
| void execute_internal_vm_tests() { |
| if (ExecuteInternalVMTests) { |
| tty->print_cr("Running internal VM tests"); |
| run_unit_test(TestOS_test()); |
| run_unit_test(TestReservedSpace_test()); |
| run_unit_test(TestReserveMemorySpecial_test()); |
| run_unit_test(TestVirtualSpace_test()); |
| run_unit_test(TestMetaspaceAux_test()); |
| run_unit_test(TestMetachunk_test()); |
| run_unit_test(TestVirtualSpaceNode_test()); |
| run_unit_test(GlobalDefinitions::test_globals()); |
| run_unit_test(GCTimerAllTest::all()); |
| run_unit_test(arrayOopDesc::test_max_array_length()); |
| run_unit_test(CollectedHeap::test_is_in()); |
| run_unit_test(QuickSort::test_quick_sort()); |
| run_unit_test(GuardedMemory::test_guarded_memory()); |
| run_unit_test(AltHashing::test_alt_hash()); |
| run_unit_test(test_loggc_filename()); |
| run_unit_test(TestNewSize_test()); |
| run_unit_test(TestKlass_test()); |
| run_unit_test(Test_linked_list()); |
| run_unit_test(TestChunkedList_test()); |
| #if INCLUDE_VM_STRUCTS |
| run_unit_test(VMStructs::test()); |
| #endif |
| #if INCLUDE_ALL_GCS |
| run_unit_test(TestOldFreeSpaceCalculation_test()); |
| run_unit_test(TestG1BiasedArray_test()); |
| run_unit_test(HeapRegionRemSet::test_prt()); |
| run_unit_test(TestBufferingOopClosure_test()); |
| run_unit_test(TestCodeCacheRemSet_test()); |
| if (UseG1GC) { |
| run_unit_test(FreeRegionList_test()); |
| } |
| #endif |
| tty->print_cr("All internal VM tests passed"); |
| } |
| } |
| |
| #undef run_unit_test |
| |
| #endif |
| |
| #ifndef USDT2 |
| HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args); |
| DT_RETURN_MARK_DECL(CreateJavaVM, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(CreateJavaVM, jint |
| , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) { |
| #ifndef USDT2 |
| HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_CREATEJAVAVM_ENTRY( |
| (void **) vm, penv, args); |
| #endif /* USDT2 */ |
| |
| jint result = JNI_ERR; |
| DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result); |
| |
| // We're about to use Atomic::xchg for synchronization. Some Zero |
| // platforms use the GCC builtin __sync_lock_test_and_set for this, |
| // but __sync_lock_test_and_set is not guaranteed to do what we want |
| // on all architectures. So we check it works before relying on it. |
| #if defined(ZERO) && defined(ASSERT) |
| { |
| jint a = 0xcafebabe; |
| jint b = Atomic::xchg(0xdeadbeef, &a); |
| void *c = &a; |
| void *d = Atomic::xchg_ptr(&b, &c); |
| assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works"); |
| assert(c == &b && d == &a, "Atomic::xchg_ptr() works"); |
| } |
| #endif // ZERO && ASSERT |
| |
| // At the moment it's only possible to have one Java VM, |
| // since some of the runtime state is in global variables. |
| |
| // We cannot use our mutex locks here, since they only work on |
| // Threads. We do an atomic compare and exchange to ensure only |
| // one thread can call this method at a time |
| |
| // We use Atomic::xchg rather than Atomic::add/dec since on some platforms |
| // the add/dec implementations are dependent on whether we are running |
| // on a multiprocessor, and at this stage of initialization the os::is_MP |
| // function used to determine this will always return false. Atomic::xchg |
| // does not have this problem. |
| if (Atomic::xchg(1, &vm_created) == 1) { |
| return JNI_EEXIST; // already created, or create attempt in progress |
| } |
| if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) { |
| return JNI_ERR; // someone tried and failed and retry not allowed. |
| } |
| |
| assert(vm_created == 1, "vm_created is true during the creation"); |
| |
| /** |
| * Certain errors during initialization are recoverable and do not |
| * prevent this method from being called again at a later time |
| * (perhaps with different arguments). However, at a certain |
| * point during initialization if an error occurs we cannot allow |
| * this function to be called again (or it will crash). In those |
| * situations, the 'canTryAgain' flag is set to false, which atomically |
| * sets safe_to_recreate_vm to 1, such that any new call to |
| * JNI_CreateJavaVM will immediately fail using the above logic. |
| */ |
| bool can_try_again = true; |
| |
| result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again); |
| if (result == JNI_OK) { |
| JavaThread *thread = JavaThread::current(); |
| /* thread is thread_in_vm here */ |
| *vm = (JavaVM *)(&main_vm); |
| *(JNIEnv**)penv = thread->jni_environment(); |
| |
| // Tracks the time application was running before GC |
| RuntimeService::record_application_start(); |
| |
| // Notify JVMTI |
| if (JvmtiExport::should_post_thread_life()) { |
| JvmtiExport::post_thread_start(thread); |
| } |
| |
| EventThreadStart event; |
| if (event.should_commit()) { |
| event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); |
| event.commit(); |
| } |
| |
| #ifndef PRODUCT |
| #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED |
| #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f() |
| #endif |
| |
| // Check if we should compile all classes on bootclasspath |
| if (CompileTheWorld) ClassLoader::compile_the_world(); |
| if (ReplayCompiles) ciReplay::replay(thread); |
| |
| // Some platforms (like Win*) need a wrapper around these test |
| // functions in order to properly handle error conditions. |
| CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler); |
| CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests); |
| #endif |
| |
| // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving. |
| ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); |
| } else { |
| if (can_try_again) { |
| // reset safe_to_recreate_vm to 1 so that retrial would be possible |
| safe_to_recreate_vm = 1; |
| } |
| |
| // Creation failed. We must reset vm_created |
| *vm = 0; |
| *(JNIEnv**)penv = 0; |
| // reset vm_created last to avoid race condition. Use OrderAccess to |
| // control both compiler and architectural-based reordering. |
| OrderAccess::release_store(&vm_created, 0); |
| } |
| |
| return result; |
| } |
| |
| #ifndef USDT2 |
| HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \ |
| JavaVM**, jsize, jsize*); |
| HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint); |
| #endif /* !USDT2 */ |
| |
| _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) { |
| // See bug 4367188, the wrapper can sometimes cause VM crashes |
| // JNIWrapper("GetCreatedJavaVMs"); |
| #ifndef USDT2 |
| HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \ |
| vm_buf, bufLen, numVMs); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY( |
| (void **) vm_buf, bufLen, (uintptr_t *) numVMs); |
| #endif /* USDT2 */ |
| if (vm_created) { |
| if (numVMs != NULL) *numVMs = 1; |
| if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm); |
| } else { |
| if (numVMs != NULL) *numVMs = 0; |
| } |
| #ifndef USDT2 |
| HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN( |
| JNI_OK); |
| #endif /* USDT2 */ |
| return JNI_OK; |
| } |
| |
| extern "C" { |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(DestroyJavaVM, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(DestroyJavaVM, jint |
| , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| jint JNICALL jni_DestroyJavaVM(JavaVM *vm) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DESTROYJAVAVM_ENTRY( |
| vm); |
| #endif /* USDT2 */ |
| jint res = JNI_ERR; |
| DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res); |
| |
| if (!vm_created) { |
| res = JNI_ERR; |
| return res; |
| } |
| |
| JNIWrapper("DestroyJavaVM"); |
| JNIEnv *env; |
| JavaVMAttachArgs destroyargs; |
| destroyargs.version = CurrentVersion; |
| destroyargs.name = (char *)"DestroyJavaVM"; |
| destroyargs.group = NULL; |
| res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs); |
| if (res != JNI_OK) { |
| return res; |
| } |
| |
| // Since this is not a JVM_ENTRY we have to set the thread state manually before entering. |
| JavaThread* thread = JavaThread::current(); |
| ThreadStateTransition::transition_from_native(thread, _thread_in_vm); |
| if (Threads::destroy_vm()) { |
| // Should not change thread state, VM is gone |
| vm_created = false; |
| res = JNI_OK; |
| return res; |
| } else { |
| ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); |
| res = JNI_ERR; |
| return res; |
| } |
| } |
| |
| |
| static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) { |
| JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args; |
| |
| // Check below commented out from JDK1.2fcs as well |
| /* |
| if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) { |
| return JNI_EVERSION; |
| } |
| */ |
| |
| Thread* t = ThreadLocalStorage::get_thread_slow(); |
| if (t != NULL) { |
| // If the thread has been attached this operation is a no-op |
| *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment(); |
| return JNI_OK; |
| } |
| |
| // Create a thread and mark it as attaching so it will be skipped by the |
| // ThreadsListEnumerator - see CR 6404306 |
| JavaThread* thread = new JavaThread(true); |
| |
| // Set correct safepoint info. The thread is going to call into Java when |
| // initializing the Java level thread object. Hence, the correct state must |
| // be set in order for the Safepoint code to deal with it correctly. |
| thread->set_thread_state(_thread_in_vm); |
| // Must do this before initialize_thread_local_storage |
| thread->record_stack_base_and_size(); |
| |
| thread->initialize_thread_local_storage(); |
| |
| if (!os::create_attached_thread(thread)) { |
| delete thread; |
| return JNI_ERR; |
| } |
| // Enable stack overflow checks |
| thread->create_stack_guard_pages(); |
| |
| thread->initialize_tlab(); |
| |
| thread->cache_global_variables(); |
| |
| // Crucial that we do not have a safepoint check for this thread, since it has |
| // not been added to the Thread list yet. |
| { Threads_lock->lock_without_safepoint_check(); |
| // This must be inside this lock in order to get FullGCALot to work properly, i.e., to |
| // avoid this thread trying to do a GC before it is added to the thread-list |
| thread->set_active_handles(JNIHandleBlock::allocate_block()); |
| Threads::add(thread, daemon); |
| Threads_lock->unlock(); |
| } |
| // Create thread group and name info from attach arguments |
| oop group = NULL; |
| char* thread_name = NULL; |
| if (args != NULL && Threads::is_supported_jni_version(args->version)) { |
| group = JNIHandles::resolve(args->group); |
| thread_name = args->name; // may be NULL |
| } |
| if (group == NULL) group = Universe::main_thread_group(); |
| |
| // Create Java level thread object and attach it to this thread |
| bool attach_failed = false; |
| { |
| EXCEPTION_MARK; |
| HandleMark hm(THREAD); |
| Handle thread_group(THREAD, group); |
| thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| CLEAR_PENDING_EXCEPTION; |
| // cleanup outside the handle mark. |
| attach_failed = true; |
| } |
| } |
| |
| if (attach_failed) { |
| // Added missing cleanup |
| thread->cleanup_failed_attach_current_thread(); |
| return JNI_ERR; |
| } |
| |
| // mark the thread as no longer attaching |
| // this uses a fence to push the change through so we don't have |
| // to regrab the threads_lock |
| thread->set_done_attaching_via_jni(); |
| |
| // Set java thread status. |
| java_lang_Thread::set_thread_status(thread->threadObj(), |
| java_lang_Thread::RUNNABLE); |
| |
| // Notify the debugger |
| if (JvmtiExport::should_post_thread_life()) { |
| JvmtiExport::post_thread_start(thread); |
| } |
| |
| EventThreadStart event; |
| if (event.should_commit()) { |
| event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj())); |
| event.commit(); |
| } |
| |
| *(JNIEnv**)penv = thread->jni_environment(); |
| |
| // Now leaving the VM, so change thread_state. This is normally automatically taken care |
| // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by |
| // using ThreadStateTransition::transition, we do a callback to the safepoint code if |
| // needed. |
| |
| ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); |
| |
| // Perform any platform dependent FPU setup |
| os::setup_fpu(); |
| |
| return JNI_OK; |
| } |
| |
| |
| jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) { |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY( |
| vm, penv, _args); |
| #endif /* USDT2 */ |
| if (!vm_created) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN( |
| (uint32_t) JNI_ERR); |
| #endif /* USDT2 */ |
| return JNI_ERR; |
| } |
| |
| JNIWrapper("AttachCurrentThread"); |
| jint ret = attach_current_thread(vm, penv, _args, false); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| } |
| |
| |
| jint JNICALL jni_DetachCurrentThread(JavaVM *vm) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY( |
| vm); |
| #endif /* USDT2 */ |
| VM_Exit::block_if_vm_exited(); |
| |
| JNIWrapper("DetachCurrentThread"); |
| |
| // If the thread has been deattacted the operations is a no-op |
| if (ThreadLocalStorage::thread() == NULL) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN( |
| JNI_OK); |
| #endif /* USDT2 */ |
| return JNI_OK; |
| } |
| |
| JavaThread* thread = JavaThread::current(); |
| if (thread->has_last_Java_frame()) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN( |
| (uint32_t) JNI_ERR); |
| #endif /* USDT2 */ |
| // Can't detach a thread that's running java, that can't work. |
| return JNI_ERR; |
| } |
| |
| // Safepoint support. Have to do call-back to safepoint code, if in the |
| // middel of a safepoint operation |
| ThreadStateTransition::transition_from_native(thread, _thread_in_vm); |
| |
| // XXX: Note that JavaThread::exit() call below removes the guards on the |
| // stack pages set up via enable_stack_{red,yellow}_zone() calls |
| // above in jni_AttachCurrentThread. Unfortunately, while the setting |
| // of the guards is visible in jni_AttachCurrentThread above, |
| // the removal of the guards is buried below in JavaThread::exit() |
| // here. The abstraction should be more symmetrically either exposed |
| // or hidden (e.g. it could probably be hidden in the same |
| // (platform-dependent) methods where we do alternate stack |
| // maintenance work?) |
| thread->exit(false, JavaThread::jni_detach); |
| delete thread; |
| |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN( |
| JNI_OK); |
| #endif /* USDT2 */ |
| return JNI_OK; |
| } |
| |
| #ifndef USDT2 |
| DT_RETURN_MARK_DECL(GetEnv, jint); |
| #else /* USDT2 */ |
| DT_RETURN_MARK_DECL(GetEnv, jint |
| , HOTSPOT_JNI_GETENV_RETURN(_ret_ref)); |
| #endif /* USDT2 */ |
| |
| jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) { |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_GETENV_ENTRY( |
| vm, penv, version); |
| #endif /* USDT2 */ |
| jint ret = JNI_ERR; |
| DT_RETURN_MARK(GetEnv, jint, (const jint&)ret); |
| |
| if (!vm_created) { |
| *penv = NULL; |
| ret = JNI_EDETACHED; |
| return ret; |
| } |
| |
| if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) { |
| return ret; |
| } |
| |
| #ifndef JVMPI_VERSION_1 |
| // need these in order to be polite about older agents |
| #define JVMPI_VERSION_1 ((jint)0x10000001) |
| #define JVMPI_VERSION_1_1 ((jint)0x10000002) |
| #define JVMPI_VERSION_1_2 ((jint)0x10000003) |
| #endif // !JVMPI_VERSION_1 |
| |
| Thread* thread = ThreadLocalStorage::thread(); |
| if (thread != NULL && thread->is_Java_thread()) { |
| if (Threads::is_supported_jni_version_including_1_1(version)) { |
| *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment(); |
| ret = JNI_OK; |
| return ret; |
| |
| } else if (version == JVMPI_VERSION_1 || |
| version == JVMPI_VERSION_1_1 || |
| version == JVMPI_VERSION_1_2) { |
| tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported."); |
| tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); |
| ret = JNI_EVERSION; |
| return ret; |
| } else if (JvmtiExport::is_jvmdi_version(version)) { |
| tty->print_cr("FATAL ERROR: JVMDI is no longer supported."); |
| tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); |
| ret = JNI_EVERSION; |
| return ret; |
| } else { |
| *penv = NULL; |
| ret = JNI_EVERSION; |
| return ret; |
| } |
| } else { |
| *penv = NULL; |
| ret = JNI_EDETACHED; |
| return ret; |
| } |
| } |
| |
| |
| jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) { |
| #ifndef USDT2 |
| DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY( |
| vm, penv, _args); |
| #endif /* USDT2 */ |
| if (!vm_created) { |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN( |
| (uint32_t) JNI_ERR); |
| #endif /* USDT2 */ |
| return JNI_ERR; |
| } |
| |
| JNIWrapper("AttachCurrentThreadAsDaemon"); |
| jint ret = attach_current_thread(vm, penv, _args, true); |
| #ifndef USDT2 |
| DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret); |
| #else /* USDT2 */ |
| HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN( |
| ret); |
| #endif /* USDT2 */ |
| return ret; |
| } |
| |
| |
| } // End extern "C" |
| |
| const struct JNIInvokeInterface_ jni_InvokeInterface = { |
| NULL, |
| NULL, |
| NULL, |
| |
| jni_DestroyJavaVM, |
| jni_AttachCurrentThread, |
| jni_DetachCurrentThread, |
| jni_GetEnv, |
| jni_AttachCurrentThreadAsDaemon |
| }; |