--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/prims/jvm.cpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,4498 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_jvm.cpp.incl"
+#include <errno.h>
+
+/*
+ NOTE about use of any ctor or function call that can trigger a safepoint/GC:
+ such ctors and calls MUST NOT come between an oop declaration/init and its
+ usage because if objects are move this may cause various memory stomps, bus
+ errors and segfaults. Here is a cookbook for causing so called "naked oop
+ failures":
+
+ JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredFields<etc> {
+ JVMWrapper("JVM_GetClassDeclaredFields");
+
+ // Object address to be held directly in mirror & not visible to GC
+ oop mirror = JNIHandles::resolve_non_null(ofClass);
+
+ // If this ctor can hit a safepoint, moving objects around, then
+ ComplexConstructor foo;
+
+ // Boom! mirror may point to JUNK instead of the intended object
+ (some dereference of mirror)
+
+ // Here's another call that may block for GC, making mirror stale
+ MutexLocker ml(some_lock);
+
+ // And here's an initializer that can result in a stale oop
+ // all in one step.
+ oop o = call_that_can_throw_exception(TRAPS);
+
+
+ The solution is to keep the oop declaration BELOW the ctor or function
+ call that might cause a GC, do another resolve to reassign the oop, or
+ consider use of a Handle instead of an oop so there is immunity from object
+ motion. But note that the "QUICK" entries below do not have a handlemark
+ and thus can only support use of handles passed in.
+*/
+
+static void trace_class_resolution_impl(klassOop to_class, TRAPS) {
+ ResourceMark rm;
+ int line_number = -1;
+ const char * source_file = NULL;
+ klassOop caller = NULL;
+ JavaThread* jthread = JavaThread::current();
+ if (jthread->has_last_Java_frame()) {
+ vframeStream vfst(jthread);
+
+ // scan up the stack skipping ClassLoader, AccessController and PrivilegedAction frames
+ symbolHandle access_controller = oopFactory::new_symbol_handle("java/security/AccessController", CHECK);
+ klassOop access_controller_klass = SystemDictionary::resolve_or_fail(access_controller, false, CHECK);
+ symbolHandle privileged_action = oopFactory::new_symbol_handle("java/security/PrivilegedAction", CHECK);
+ klassOop privileged_action_klass = SystemDictionary::resolve_or_fail(privileged_action, false, CHECK);
+
+ methodOop last_caller = NULL;
+
+ while (!vfst.at_end()) {
+ methodOop m = vfst.method();
+ if (!vfst.method()->method_holder()->klass_part()->is_subclass_of(SystemDictionary::classloader_klass())&&
+ !vfst.method()->method_holder()->klass_part()->is_subclass_of(access_controller_klass) &&
+ !vfst.method()->method_holder()->klass_part()->is_subclass_of(privileged_action_klass)) {
+ break;
+ }
+ last_caller = m;
+ vfst.next();
+ }
+ // if this is called from Class.forName0 and that is called from Class.forName,
+ // then print the caller of Class.forName. If this is Class.loadClass, then print
+ // that caller, otherwise keep quiet since this should be picked up elsewhere.
+ bool found_it = false;
+ if (!vfst.at_end() &&
+ instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class() &&
+ vfst.method()->name() == vmSymbols::forName0_name()) {
+ vfst.next();
+ if (!vfst.at_end() &&
+ instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class() &&
+ vfst.method()->name() == vmSymbols::forName_name()) {
+ vfst.next();
+ found_it = true;
+ }
+ } else if (last_caller != NULL &&
+ instanceKlass::cast(last_caller->method_holder())->name() ==
+ vmSymbols::java_lang_ClassLoader() &&
+ (last_caller->name() == vmSymbols::loadClassInternal_name() ||
+ last_caller->name() == vmSymbols::loadClass_name())) {
+ found_it = true;
+ }
+ if (found_it && !vfst.at_end()) {
+ // found the caller
+ caller = vfst.method()->method_holder();
+ line_number = vfst.method()->line_number_from_bci(vfst.bci());
+ symbolOop s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name();
+ if (s != NULL) {
+ source_file = s->as_C_string();
+ }
+ }
+ }
+ if (caller != NULL) {
+ if (to_class != caller) {
+ const char * from = Klass::cast(caller)->external_name();
+ const char * to = Klass::cast(to_class)->external_name();
+ // print in a single call to reduce interleaving between threads
+ if (source_file != NULL) {
+ tty->print("RESOLVE %s %s %s:%d (explicit)\n", from, to, source_file, line_number);
+ } else {
+ tty->print("RESOLVE %s %s (explicit)\n", from, to);
+ }
+ }
+ }
+}
+
+static void trace_class_resolution(klassOop to_class) {
+ EXCEPTION_MARK;
+ trace_class_resolution_impl(to_class, THREAD);
+ if (HAS_PENDING_EXCEPTION) {
+ CLEAR_PENDING_EXCEPTION;
+ }
+}
+
+// Wrapper to trace JVM functions
+
+#ifdef ASSERT
+ class JVMTraceWrapper : public StackObj {
+ public:
+ JVMTraceWrapper(const char* format, ...) {
+ if (TraceJVMCalls) {
+ va_list ap;
+ va_start(ap, format);
+ tty->print("JVM ");
+ tty->vprint_cr(format, ap);
+ va_end(ap);
+ }
+ }
+ };
+
+ Histogram* JVMHistogram;
+ volatile jint JVMHistogram_lock = 0;
+
+ class JVMHistogramElement : public HistogramElement {
+ public:
+ JVMHistogramElement(const char* name);
+ };
+
+ JVMHistogramElement::JVMHistogramElement(const char* elementName) {
+ _name = elementName;
+ uintx count = 0;
+
+ while (Atomic::cmpxchg(1, &JVMHistogram_lock, 0) != 0) {
+ while (OrderAccess::load_acquire(&JVMHistogram_lock) != 0) {
+ count +=1;
+ if ( (WarnOnStalledSpinLock > 0)
+ && (count % WarnOnStalledSpinLock == 0)) {
+ warning("JVMHistogram_lock seems to be stalled");
+ }
+ }
+ }
+
+ if(JVMHistogram == NULL)
+ JVMHistogram = new Histogram("JVM Call Counts",100);
+
+ JVMHistogram->add_element(this);
+ Atomic::dec(&JVMHistogram_lock);
+ }
+
+ #define JVMCountWrapper(arg) \
+ static JVMHistogramElement* e = new JVMHistogramElement(arg); \
+ if (e != NULL) e->increment_count(); // Due to bug in VC++, we need a NULL check here eventhough it should never happen!
+
+ #define JVMWrapper(arg1) JVMCountWrapper(arg1); JVMTraceWrapper(arg1)
+ #define JVMWrapper2(arg1, arg2) JVMCountWrapper(arg1); JVMTraceWrapper(arg1, arg2)
+ #define JVMWrapper3(arg1, arg2, arg3) JVMCountWrapper(arg1); JVMTraceWrapper(arg1, arg2, arg3)
+ #define JVMWrapper4(arg1, arg2, arg3, arg4) JVMCountWrapper(arg1); JVMTraceWrapper(arg1, arg2, arg3, arg4)
+#else
+ #define JVMWrapper(arg1)
+ #define JVMWrapper2(arg1, arg2)
+ #define JVMWrapper3(arg1, arg2, arg3)
+ #define JVMWrapper4(arg1, arg2, arg3, arg4)
+#endif
+
+
+// Interface version /////////////////////////////////////////////////////////////////////
+
+
+JVM_LEAF(jint, JVM_GetInterfaceVersion())
+ return JVM_INTERFACE_VERSION;
+JVM_END
+
+
+// java.lang.System //////////////////////////////////////////////////////////////////////
+
+
+JVM_LEAF(jlong, JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored))
+ JVMWrapper("JVM_CurrentTimeMillis");
+ return os::javaTimeMillis();
+JVM_END
+
+JVM_LEAF(jlong, JVM_NanoTime(JNIEnv *env, jclass ignored))
+ JVMWrapper("JVM_NanoTime");
+ return os::javaTimeNanos();
+JVM_END
+
+
+JVM_ENTRY(void, JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
+ jobject dst, jint dst_pos, jint length))
+ JVMWrapper("JVM_ArrayCopy");
+ // Check if we have null pointers
+ if (src == NULL || dst == NULL) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ }
+ arrayOop s = arrayOop(JNIHandles::resolve_non_null(src));
+ arrayOop d = arrayOop(JNIHandles::resolve_non_null(dst));
+ assert(s->is_oop(), "JVM_ArrayCopy: src not an oop");
+ assert(d->is_oop(), "JVM_ArrayCopy: dst not an oop");
+ // Do copy
+ Klass::cast(s->klass())->copy_array(s, src_pos, d, dst_pos, length, thread);
+JVM_END
+
+
+static void set_property(Handle props, const char* key, const char* value, TRAPS) {
+ JavaValue r(T_OBJECT);
+ // public synchronized Object put(Object key, Object value);
+ HandleMark hm(THREAD);
+ Handle key_str = java_lang_String::create_from_platform_dependent_str(key, CHECK);
+ Handle value_str = java_lang_String::create_from_platform_dependent_str((value != NULL ? value : ""), CHECK);
+ JavaCalls::call_virtual(&r,
+ props,
+ KlassHandle(THREAD, SystemDictionary::properties_klass()),
+ vmSymbolHandles::put_name(),
+ vmSymbolHandles::object_object_object_signature(),
+ key_str,
+ value_str,
+ THREAD);
+}
+
+
+#define PUTPROP(props, name, value) set_property((props), (name), (value), CHECK_(properties));
+
+
+JVM_ENTRY(jobject, JVM_InitProperties(JNIEnv *env, jobject properties))
+ JVMWrapper("JVM_InitProperties");
+ ResourceMark rm;
+
+ Handle props(THREAD, JNIHandles::resolve_non_null(properties));
+
+ // System property list includes both user set via -D option and
+ // jvm system specific properties.
+ for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
+ PUTPROP(props, p->key(), p->value());
+ }
+
+ // Convert the -XX:MaxDirectMemorySize= command line flag
+ // to the sun.nio.MaxDirectMemorySize property.
+ // Do this after setting user properties to prevent people
+ // from setting the value with a -D option, as requested.
+ {
+ char as_chars[256];
+ jio_snprintf(as_chars, sizeof(as_chars), INTX_FORMAT, MaxDirectMemorySize);
+ PUTPROP(props, "sun.nio.MaxDirectMemorySize", as_chars);
+ }
+
+ // JVM monitoring and management support
+ // Add the sun.management.compiler property for the compiler's name
+ {
+#undef CSIZE
+#if defined(_LP64) || defined(_WIN64)
+ #define CSIZE "64-Bit "
+#else
+ #define CSIZE
+#endif // 64bit
+
+#ifdef TIERED
+ const char* compiler_name = "HotSpot " CSIZE "Tiered Compilers";
+#else
+#if defined(COMPILER1)
+ const char* compiler_name = "HotSpot " CSIZE "Client Compiler";
+#elif defined(COMPILER2)
+ const char* compiler_name = "HotSpot " CSIZE "Server Compiler";
+#else
+ const char* compiler_name = "";
+#endif // compilers
+#endif // TIERED
+
+ if (*compiler_name != '\0' &&
+ (Arguments::mode() != Arguments::_int)) {
+ PUTPROP(props, "sun.management.compiler", compiler_name);
+ }
+ }
+
+ return properties;
+JVM_END
+
+
+// java.lang.Runtime /////////////////////////////////////////////////////////////////////////
+
+extern volatile jint vm_created;
+
+JVM_ENTRY_NO_ENV(void, JVM_Exit(jint code))
+ if (vm_created != 0 && (code == 0)) {
+ // The VM is about to exit. We call back into Java to check whether finalizers should be run
+ Universe::run_finalizers_on_exit();
+ }
+ before_exit(thread);
+ vm_exit(code);
+JVM_END
+
+
+JVM_ENTRY_NO_ENV(void, JVM_Halt(jint code))
+ before_exit(thread);
+ vm_exit(code);
+JVM_END
+
+
+JVM_LEAF(void, JVM_OnExit(void (*func)(void)))
+ register_on_exit_function(func);
+JVM_END
+
+
+JVM_ENTRY_NO_ENV(void, JVM_GC(void))
+ JVMWrapper("JVM_GC");
+ if (!DisableExplicitGC) {
+ Universe::heap()->collect(GCCause::_java_lang_system_gc);
+ }
+JVM_END
+
+
+JVM_LEAF(jlong, JVM_MaxObjectInspectionAge(void))
+ JVMWrapper("JVM_MaxObjectInspectionAge");
+ return Universe::heap()->millis_since_last_gc();
+JVM_END
+
+
+JVM_LEAF(void, JVM_TraceInstructions(jboolean on))
+ if (PrintJVMWarnings) warning("JVM_TraceInstructions not supported");
+JVM_END
+
+
+JVM_LEAF(void, JVM_TraceMethodCalls(jboolean on))
+ if (PrintJVMWarnings) warning("JVM_TraceMethodCalls not supported");
+JVM_END
+
+static inline jlong convert_size_t_to_jlong(size_t val) {
+ // In the 64-bit vm, a size_t can overflow a jlong (which is signed).
+ NOT_LP64 (return (jlong)val;)
+ LP64_ONLY(return (jlong)MIN2(val, (size_t)max_jlong);)
+}
+
+JVM_ENTRY_NO_ENV(jlong, JVM_TotalMemory(void))
+ JVMWrapper("JVM_TotalMemory");
+ size_t n = Universe::heap()->capacity();
+ return convert_size_t_to_jlong(n);
+JVM_END
+
+
+JVM_ENTRY_NO_ENV(jlong, JVM_FreeMemory(void))
+ JVMWrapper("JVM_FreeMemory");
+ CollectedHeap* ch = Universe::heap();
+ size_t n = ch->capacity() - ch->used();
+ return convert_size_t_to_jlong(n);
+JVM_END
+
+
+JVM_ENTRY_NO_ENV(jlong, JVM_MaxMemory(void))
+ JVMWrapper("JVM_MaxMemory");
+ size_t n = Universe::heap()->max_capacity();
+ return convert_size_t_to_jlong(n);
+JVM_END
+
+
+JVM_ENTRY_NO_ENV(jint, JVM_ActiveProcessorCount(void))
+ JVMWrapper("JVM_ActiveProcessorCount");
+ return os::active_processor_count();
+JVM_END
+
+
+
+// java.lang.Throwable //////////////////////////////////////////////////////
+
+
+JVM_ENTRY(void, JVM_FillInStackTrace(JNIEnv *env, jobject receiver))
+ JVMWrapper("JVM_FillInStackTrace");
+ Handle exception(thread, JNIHandles::resolve_non_null(receiver));
+ java_lang_Throwable::fill_in_stack_trace(exception);
+JVM_END
+
+
+JVM_ENTRY(void, JVM_PrintStackTrace(JNIEnv *env, jobject receiver, jobject printable))
+ JVMWrapper("JVM_PrintStackTrace");
+ // Note: This is no longer used in Merlin, but we still support it for compatibility.
+ oop exception = JNIHandles::resolve_non_null(receiver);
+ oop stream = JNIHandles::resolve_non_null(printable);
+ java_lang_Throwable::print_stack_trace(exception, stream);
+JVM_END
+
+
+JVM_ENTRY(jint, JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable))
+ JVMWrapper("JVM_GetStackTraceDepth");
+ oop exception = JNIHandles::resolve(throwable);
+ return java_lang_Throwable::get_stack_trace_depth(exception, THREAD);
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index))
+ JVMWrapper("JVM_GetStackTraceElement");
+ JvmtiVMObjectAllocEventCollector oam; // This ctor (throughout this module) may trigger a safepoint/GC
+ oop exception = JNIHandles::resolve(throwable);
+ oop element = java_lang_Throwable::get_stack_trace_element(exception, index, CHECK_NULL);
+ return JNIHandles::make_local(env, element);
+JVM_END
+
+
+// java.lang.Object ///////////////////////////////////////////////
+
+
+JVM_ENTRY(jint, JVM_IHashCode(JNIEnv* env, jobject handle))
+ JVMWrapper("JVM_IHashCode");
+ // as implemented in the classic virtual machine; return 0 if object is NULL
+ return handle == NULL ? 0 : ObjectSynchronizer::FastHashCode (THREAD, JNIHandles::resolve_non_null(handle)) ;
+JVM_END
+
+
+JVM_ENTRY(void, JVM_MonitorWait(JNIEnv* env, jobject handle, jlong ms))
+ JVMWrapper("JVM_MonitorWait");
+ Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
+ assert(obj->is_instance() || obj->is_array(), "JVM_MonitorWait must apply to an object");
+ JavaThreadInObjectWaitState jtiows(thread, ms != 0);
+ if (JvmtiExport::should_post_monitor_wait()) {
+ JvmtiExport::post_monitor_wait((JavaThread *)THREAD, (oop)obj(), ms);
+ }
+ ObjectSynchronizer::wait(obj, ms, CHECK);
+JVM_END
+
+
+JVM_ENTRY(void, JVM_MonitorNotify(JNIEnv* env, jobject handle))
+ JVMWrapper("JVM_MonitorNotify");
+ Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
+ assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotify must apply to an object");
+ ObjectSynchronizer::notify(obj, CHECK);
+JVM_END
+
+
+JVM_ENTRY(void, JVM_MonitorNotifyAll(JNIEnv* env, jobject handle))
+ JVMWrapper("JVM_MonitorNotifyAll");
+ Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
+ assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotifyAll must apply to an object");
+ ObjectSynchronizer::notifyall(obj, CHECK);
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_Clone(JNIEnv* env, jobject handle))
+ JVMWrapper("JVM_Clone");
+ Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
+ const KlassHandle klass (THREAD, obj->klass());
+ JvmtiVMObjectAllocEventCollector oam;
+
+#ifdef ASSERT
+ // Just checking that the cloneable flag is set correct
+ if (obj->is_javaArray()) {
+ guarantee(klass->is_cloneable(), "all arrays are cloneable");
+ } else {
+ guarantee(obj->is_instance(), "should be instanceOop");
+ bool cloneable = klass->is_subtype_of(SystemDictionary::cloneable_klass());
+ guarantee(cloneable == klass->is_cloneable(), "incorrect cloneable flag");
+ }
+#endif
+
+ // Check if class of obj supports the Cloneable interface.
+ // All arrays are considered to be cloneable (See JLS 20.1.5)
+ if (!klass->is_cloneable()) {
+ ResourceMark rm(THREAD);
+ THROW_MSG_0(vmSymbols::java_lang_CloneNotSupportedException(), klass->external_name());
+ }
+
+ // Make shallow object copy
+ const int size = obj->size();
+ oop new_obj = NULL;
+ if (obj->is_javaArray()) {
+ const int length = ((arrayOop)obj())->length();
+ new_obj = CollectedHeap::array_allocate(klass, size, length, CHECK_NULL);
+ } else {
+ new_obj = CollectedHeap::obj_allocate(klass, size, CHECK_NULL);
+ }
+ // 4839641 (4840070): We must do an oop-atomic copy, because if another thread
+ // is modifying a reference field in the clonee, a non-oop-atomic copy might
+ // be suspended in the middle of copying the pointer and end up with parts
+ // of two different pointers in the field. Subsequent dereferences will crash.
+ // 4846409: an oop-copy of objects with long or double fields or arrays of same
+ // won't copy the longs/doubles atomically in 32-bit vm's, so we copy jlongs instead
+ // of oops. We know objects are aligned on a minimum of an jlong boundary.
+ // The same is true of StubRoutines::object_copy and the various oop_copy
+ // variants, and of the code generated by the inline_native_clone intrinsic.
+ assert(MinObjAlignmentInBytes >= BytesPerLong, "objects misaligned");
+ Copy::conjoint_jlongs_atomic((jlong*)obj(), (jlong*)new_obj,
+ (size_t)align_object_size(size) / HeapWordsPerLong);
+ // Clear the header
+ new_obj->init_mark();
+
+ // Store check (mark entire object and let gc sort it out)
+ BarrierSet* bs = Universe::heap()->barrier_set();
+ assert(bs->has_write_region_opt(), "Barrier set does not have write_region");
+ bs->write_region(MemRegion((HeapWord*)new_obj, size));
+
+ // Caution: this involves a java upcall, so the clone should be
+ // "gc-robust" by this stage.
+ if (klass->has_finalizer()) {
+ assert(obj->is_instance(), "should be instanceOop");
+ new_obj = instanceKlass::register_finalizer(instanceOop(new_obj), CHECK_NULL);
+ }
+
+ return JNIHandles::make_local(env, oop(new_obj));
+JVM_END
+
+// java.lang.Compiler ////////////////////////////////////////////////////
+
+// The initial cuts of the HotSpot VM will not support JITs, and all existing
+// JITs would need extensive changes to work with HotSpot. The JIT-related JVM
+// functions are all silently ignored unless JVM warnings are printed.
+
+JVM_LEAF(void, JVM_InitializeCompiler (JNIEnv *env, jclass compCls))
+ if (PrintJVMWarnings) warning("JVM_InitializeCompiler not supported");
+JVM_END
+
+
+JVM_LEAF(jboolean, JVM_IsSilentCompiler(JNIEnv *env, jclass compCls))
+ if (PrintJVMWarnings) warning("JVM_IsSilentCompiler not supported");
+ return JNI_FALSE;
+JVM_END
+
+
+JVM_LEAF(jboolean, JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls))
+ if (PrintJVMWarnings) warning("JVM_CompileClass not supported");
+ return JNI_FALSE;
+JVM_END
+
+
+JVM_LEAF(jboolean, JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname))
+ if (PrintJVMWarnings) warning("JVM_CompileClasses not supported");
+ return JNI_FALSE;
+JVM_END
+
+
+JVM_LEAF(jobject, JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg))
+ if (PrintJVMWarnings) warning("JVM_CompilerCommand not supported");
+ return NULL;
+JVM_END
+
+
+JVM_LEAF(void, JVM_EnableCompiler(JNIEnv *env, jclass compCls))
+ if (PrintJVMWarnings) warning("JVM_EnableCompiler not supported");
+JVM_END
+
+
+JVM_LEAF(void, JVM_DisableCompiler(JNIEnv *env, jclass compCls))
+ if (PrintJVMWarnings) warning("JVM_DisableCompiler not supported");
+JVM_END
+
+
+
+// Error message support //////////////////////////////////////////////////////
+
+JVM_LEAF(jint, JVM_GetLastErrorString(char *buf, int len))
+ JVMWrapper("JVM_GetLastErrorString");
+ return hpi::lasterror(buf, len);
+JVM_END
+
+
+// java.io.File ///////////////////////////////////////////////////////////////
+
+JVM_LEAF(char*, JVM_NativePath(char* path))
+ JVMWrapper2("JVM_NativePath (%s)", path);
+ return hpi::native_path(path);
+JVM_END
+
+
+// Misc. class handling ///////////////////////////////////////////////////////////
+
+
+JVM_ENTRY(jclass, JVM_GetCallerClass(JNIEnv* env, int depth))
+ JVMWrapper("JVM_GetCallerClass");
+ klassOop k = thread->security_get_caller_class(depth);
+ return (k == NULL) ? NULL : (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_FindPrimitiveClass(JNIEnv* env, const char* utf))
+ JVMWrapper("JVM_FindPrimitiveClass");
+ oop mirror = NULL;
+ BasicType t = name2type(utf);
+ if (t != T_ILLEGAL && t != T_OBJECT && t != T_ARRAY) {
+ mirror = Universe::java_mirror(t);
+ }
+ if (mirror == NULL) {
+ THROW_MSG_0(vmSymbols::java_lang_ClassNotFoundException(), (char*) utf);
+ } else {
+ return (jclass) JNIHandles::make_local(env, mirror);
+ }
+JVM_END
+
+
+JVM_ENTRY(void, JVM_ResolveClass(JNIEnv* env, jclass cls))
+ JVMWrapper("JVM_ResolveClass");
+ if (PrintJVMWarnings) warning("JVM_ResolveClass not implemented");
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_FindClassFromClassLoader(JNIEnv* env, const char* name,
+ jboolean init, jobject loader,
+ jboolean throwError))
+ JVMWrapper3("JVM_FindClassFromClassLoader %s throw %s", name,
+ throwError ? "error" : "exception");
+ // Java libraries should ensure that name is never null...
+ if (name == NULL || (int)strlen(name) > symbolOopDesc::max_length()) {
+ // It's impossible to create this class; the name cannot fit
+ // into the constant pool.
+ if (throwError) {
+ THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
+ } else {
+ THROW_MSG_0(vmSymbols::java_lang_ClassNotFoundException(), name);
+ }
+ }
+ symbolHandle h_name = oopFactory::new_symbol_handle(name, CHECK_NULL);
+ Handle h_loader(THREAD, JNIHandles::resolve(loader));
+ jclass result = find_class_from_class_loader(env, h_name, init, h_loader,
+ Handle(), throwError, thread);
+
+ if (TraceClassResolution && result != NULL) {
+ trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
+ }
+
+ return result;
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_FindClassFromClass(JNIEnv *env, const char *name,
+ jboolean init, jclass from))
+ JVMWrapper2("JVM_FindClassFromClass %s", name);
+ if (name == NULL || (int)strlen(name) > symbolOopDesc::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);
+ }
+ symbolHandle h_name = oopFactory::new_symbol_handle(name, CHECK_NULL);
+ oop from_class_oop = JNIHandles::resolve(from);
+ klassOop from_class = (from_class_oop == NULL)
+ ? (klassOop)NULL
+ : java_lang_Class::as_klassOop(from_class_oop);
+ oop class_loader = NULL;
+ oop protection_domain = NULL;
+ if (from_class != NULL) {
+ class_loader = Klass::cast(from_class)->class_loader();
+ protection_domain = Klass::cast(from_class)->protection_domain();
+ }
+ Handle h_loader(THREAD, class_loader);
+ Handle h_prot (THREAD, protection_domain);
+ jclass result = find_class_from_class_loader(env, h_name, init, h_loader,
+ h_prot, true, thread);
+
+ if (TraceClassResolution && result != NULL) {
+ // this function is generally only used for class loading during verification.
+ ResourceMark rm;
+ oop from_mirror = JNIHandles::resolve_non_null(from);
+ klassOop from_class = java_lang_Class::as_klassOop(from_mirror);
+ const char * from_name = Klass::cast(from_class)->external_name();
+
+ oop mirror = JNIHandles::resolve_non_null(result);
+ klassOop to_class = java_lang_Class::as_klassOop(mirror);
+ const char * to = Klass::cast(to_class)->external_name();
+ tty->print("RESOLVE %s %s (verification)\n", from_name, to);
+ }
+
+ return result;
+JVM_END
+
+static void is_lock_held_by_thread(Handle loader, PerfCounter* counter, TRAPS) {
+ if (loader.is_null()) {
+ return;
+ }
+
+ // check whether the current caller thread holds the lock or not.
+ // If not, increment the corresponding counter
+ if (ObjectSynchronizer::query_lock_ownership((JavaThread*)THREAD, loader) !=
+ ObjectSynchronizer::owner_self) {
+ counter->inc();
+ }
+}
+
+// common code for JVM_DefineClass() and JVM_DefineClassWithSource()
+static jclass jvm_define_class_common(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize len, jobject pd, const char *source, TRAPS) {
+
+ // 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.
+ symbolHandle class_name;
+ if (name != NULL) {
+ const int str_len = (int)strlen(name);
+ if (str_len > symbolOopDesc::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 = oopFactory::new_symbol_handle(name, str_len, CHECK_NULL);
+ }
+
+ ResourceMark rm(THREAD);
+ ClassFileStream st((u1*) buf, len, (char *)source);
+ Handle class_loader (THREAD, JNIHandles::resolve(loader));
+ if (UsePerfData) {
+ is_lock_held_by_thread(class_loader,
+ ClassLoader::sync_JVMDefineClassLockFreeCounter(),
+ THREAD);
+ }
+ Handle protection_domain (THREAD, JNIHandles::resolve(pd));
+ klassOop k = SystemDictionary::resolve_from_stream(class_name, class_loader,
+ protection_domain, &st,
+ CHECK_NULL);
+
+ if (TraceClassResolution && k != NULL) {
+ trace_class_resolution(k);
+ }
+
+ return (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());
+}
+
+
+JVM_ENTRY(jclass, JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize len, jobject pd))
+ JVMWrapper2("JVM_DefineClass %s", name);
+
+ return jvm_define_class_common(env, name, loader, buf, len, pd, "__JVM_DefineClass__", THREAD);
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize len, jobject pd, const char *source))
+ JVMWrapper2("JVM_DefineClassWithSource %s", name);
+
+ return jvm_define_class_common(env, name, loader, buf, len, pd, source, THREAD);
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name))
+ JVMWrapper("JVM_FindLoadedClass");
+ ResourceMark rm(THREAD);
+
+ Handle h_name (THREAD, JNIHandles::resolve_non_null(name));
+ Handle string = java_lang_String::internalize_classname(h_name, CHECK_NULL);
+
+ const char* str = java_lang_String::as_utf8_string(string());
+ // Sanity check, don't expect null
+ if (str == NULL) return NULL;
+
+ const int str_len = (int)strlen(str);
+ if (str_len > symbolOopDesc::max_length()) {
+ // It's impossible to create this class; the name cannot fit
+ // into the constant pool.
+ return NULL;
+ }
+ symbolHandle klass_name = oopFactory::new_symbol_handle(str, str_len,CHECK_NULL);
+
+ // Security Note:
+ // The Java level wrapper will perform the necessary security check allowing
+ // us to pass the NULL as the initiating class loader.
+ Handle h_loader(THREAD, JNIHandles::resolve(loader));
+ if (UsePerfData) {
+ is_lock_held_by_thread(h_loader,
+ ClassLoader::sync_JVMFindLoadedClassLockFreeCounter(),
+ THREAD);
+ }
+
+ klassOop k = SystemDictionary::find_instance_or_array_klass(klass_name,
+ h_loader,
+ Handle(),
+ CHECK_NULL);
+
+ return (k == NULL) ? NULL :
+ (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());
+JVM_END
+
+
+// Reflection support //////////////////////////////////////////////////////////////////////////////
+
+JVM_ENTRY(jstring, JVM_GetClassName(JNIEnv *env, jclass cls))
+ assert (cls != NULL, "illegal class");
+ JVMWrapper("JVM_GetClassName");
+ JvmtiVMObjectAllocEventCollector oam;
+ ResourceMark rm(THREAD);
+ const char* name;
+ if (java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
+ name = type2name(java_lang_Class::primitive_type(JNIHandles::resolve(cls)));
+ } else {
+ // Consider caching interned string in Klass
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
+ assert(k->is_klass(), "just checking");
+ name = Klass::cast(k)->external_name();
+ }
+ oop result = StringTable::intern((char*) name, CHECK_NULL);
+ return (jstring) JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jobjectArray, JVM_GetClassInterfaces(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassInterfaces");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop mirror = JNIHandles::resolve_non_null(cls);
+
+ // Special handling for primitive objects
+ if (java_lang_Class::is_primitive(mirror)) {
+ // Primitive objects does not have any interfaces
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::class_klass(), 0, CHECK_NULL);
+ return (jobjectArray) JNIHandles::make_local(env, r);
+ }
+
+ KlassHandle klass(thread, java_lang_Class::as_klassOop(mirror));
+ // Figure size of result array
+ int size;
+ if (klass->oop_is_instance()) {
+ size = instanceKlass::cast(klass())->local_interfaces()->length();
+ } else {
+ assert(klass->oop_is_objArray() || klass->oop_is_typeArray(), "Illegal mirror klass");
+ size = 2;
+ }
+
+ // Allocate result array
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::class_klass(), size, CHECK_NULL);
+ objArrayHandle result (THREAD, r);
+ // Fill in result
+ if (klass->oop_is_instance()) {
+ // Regular instance klass, fill in all local interfaces
+ for (int index = 0; index < size; index++) {
+ klassOop k = klassOop(instanceKlass::cast(klass())->local_interfaces()->obj_at(index));
+ result->obj_at_put(index, Klass::cast(k)->java_mirror());
+ }
+ } else {
+ // All arrays implement java.lang.Cloneable and java.io.Serializable
+ result->obj_at_put(0, Klass::cast(SystemDictionary::cloneable_klass())->java_mirror());
+ result->obj_at_put(1, Klass::cast(SystemDictionary::serializable_klass())->java_mirror());
+ }
+ return (jobjectArray) JNIHandles::make_local(env, result());
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_GetClassLoader(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassLoader");
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
+ return NULL;
+ }
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ oop loader = Klass::cast(k)->class_loader();
+ return JNIHandles::make_local(env, loader);
+JVM_END
+
+
+JVM_QUICK_ENTRY(jboolean, JVM_IsInterface(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_IsInterface");
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ if (java_lang_Class::is_primitive(mirror)) {
+ return JNI_FALSE;
+ }
+ klassOop k = java_lang_Class::as_klassOop(mirror);
+ jboolean result = Klass::cast(k)->is_interface();
+ assert(!result || Klass::cast(k)->oop_is_instance(),
+ "all interfaces are instance types");
+ // The compiler intrinsic for isInterface tests the
+ // Klass::_access_flags bits in the same way.
+ return result;
+JVM_END
+
+
+JVM_ENTRY(jobjectArray, JVM_GetClassSigners(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassSigners");
+ JvmtiVMObjectAllocEventCollector oam;
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
+ // There are no signers for primitive types
+ return NULL;
+ }
+
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ objArrayOop signers = NULL;
+ if (Klass::cast(k)->oop_is_instance()) {
+ signers = instanceKlass::cast(k)->signers();
+ }
+
+ // If there are no signers set in the class, or if the class
+ // is an array, return NULL.
+ if (signers == NULL) return NULL;
+
+ // copy of the signers array
+ klassOop element = objArrayKlass::cast(signers->klass())->element_klass();
+ objArrayOop signers_copy = oopFactory::new_objArray(element, signers->length(), CHECK_NULL);
+ for (int index = 0; index < signers->length(); index++) {
+ signers_copy->obj_at_put(index, signers->obj_at(index));
+ }
+
+ // return the copy
+ return (jobjectArray) JNIHandles::make_local(env, signers_copy);
+JVM_END
+
+
+JVM_ENTRY(void, JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers))
+ JVMWrapper("JVM_SetClassSigners");
+ if (!java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
+ // This call is ignored for primitive types and arrays.
+ // Signers are only set once, ClassLoader.java, and thus shouldn't
+ // be called with an array. Only the bootstrap loader creates arrays.
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ if (Klass::cast(k)->oop_is_instance()) {
+ instanceKlass::cast(k)->set_signers(objArrayOop(JNIHandles::resolve(signers)));
+ }
+ }
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_GetProtectionDomain(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetProtectionDomain");
+ if (JNIHandles::resolve(cls) == NULL) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), NULL);
+ }
+
+ if (java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
+ // Primitive types does not have a protection domain.
+ return NULL;
+ }
+
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
+ return (jobject) JNIHandles::make_local(env, Klass::cast(k)->protection_domain());
+JVM_END
+
+
+// Obsolete since 1.2 (Class.setProtectionDomain removed), although
+// still defined in core libraries as of 1.5.
+JVM_ENTRY(void, JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain))
+ JVMWrapper("JVM_SetProtectionDomain");
+ if (JNIHandles::resolve(cls) == NULL) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ }
+ if (!java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
+ // Call is ignored for primitive types
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
+
+ // cls won't be an array, as this called only from ClassLoader.defineClass
+ if (Klass::cast(k)->oop_is_instance()) {
+ oop pd = JNIHandles::resolve(protection_domain);
+ assert(pd == NULL || pd->is_oop(), "just checking");
+ instanceKlass::cast(k)->set_protection_domain(pd);
+ }
+ }
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_DoPrivileged(JNIEnv *env, jclass cls, jobject action, jobject context, jboolean wrapException))
+ JVMWrapper("JVM_DoPrivileged");
+
+ if (action == NULL) {
+ THROW_MSG_0(vmSymbols::java_lang_NullPointerException(), "Null action");
+ }
+
+ // Stack allocated list of privileged stack elements
+ PrivilegedElement pi;
+
+ // Check that action object understands "Object run()"
+ Handle object (THREAD, JNIHandles::resolve(action));
+
+ // get run() method
+ methodOop m_oop = Klass::cast(object->klass())->uncached_lookup_method(
+ vmSymbols::run_method_name(),
+ vmSymbols::void_object_signature());
+ methodHandle m (THREAD, m_oop);
+ if (m.is_null() || !m->is_method() || !methodOop(m())->is_public() || methodOop(m())->is_static()) {
+ THROW_MSG_0(vmSymbols::java_lang_InternalError(), "No run method");
+ }
+
+ // Compute the frame initiating the do privileged operation and setup the privileged stack
+ vframeStream vfst(thread);
+ vfst.security_get_caller_frame(1);
+
+ if (!vfst.at_end()) {
+ pi.initialize(&vfst, JNIHandles::resolve(context), thread->privileged_stack_top(), CHECK_NULL);
+ thread->set_privileged_stack_top(&pi);
+ }
+
+
+ // invoke the Object run() in the action object. We cannot use call_interface here, since the static type
+ // is not really known - it is either java.security.PrivilegedAction or java.security.PrivilegedExceptionAction
+ Handle pending_exception;
+ JavaValue result(T_OBJECT);
+ JavaCallArguments args(object);
+ JavaCalls::call(&result, m, &args, THREAD);
+
+ // done with action, remove ourselves from the list
+ if (!vfst.at_end()) {
+ assert(thread->privileged_stack_top() != NULL && thread->privileged_stack_top() == &pi, "wrong top element");
+ thread->set_privileged_stack_top(thread->privileged_stack_top()->next());
+ }
+
+ if (HAS_PENDING_EXCEPTION) {
+ pending_exception = Handle(THREAD, PENDING_EXCEPTION);
+ CLEAR_PENDING_EXCEPTION;
+
+ if ( pending_exception->is_a(SystemDictionary::exception_klass()) &&
+ !pending_exception->is_a(SystemDictionary::runtime_exception_klass())) {
+ // Throw a java.security.PrivilegedActionException(Exception e) exception
+ JavaCallArguments args(pending_exception);
+ THROW_ARG_0(vmSymbolHandles::java_security_PrivilegedActionException(),
+ vmSymbolHandles::exception_void_signature(),
+ &args);
+ }
+ }
+
+ if (pending_exception.not_null()) THROW_OOP_0(pending_exception());
+ return JNIHandles::make_local(env, (oop) result.get_jobject());
+JVM_END
+
+
+// Returns the inherited_access_control_context field of the running thread.
+JVM_ENTRY(jobject, JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetInheritedAccessControlContext");
+ oop result = java_lang_Thread::inherited_access_control_context(thread->threadObj());
+ return JNIHandles::make_local(env, result);
+JVM_END
+
+class RegisterArrayForGC {
+ private:
+ JavaThread *_thread;
+ public:
+ RegisterArrayForGC(JavaThread *thread, GrowableArray<oop>* array) {
+ _thread = thread;
+ _thread->register_array_for_gc(array);
+ }
+
+ ~RegisterArrayForGC() {
+ _thread->register_array_for_gc(NULL);
+ }
+};
+
+
+JVM_ENTRY(jobject, JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetStackAccessControlContext");
+ if (!UsePrivilegedStack) return NULL;
+
+ ResourceMark rm(THREAD);
+ GrowableArray<oop>* local_array = new GrowableArray<oop>(12);
+ JvmtiVMObjectAllocEventCollector oam;
+
+ // count the protection domains on the execution stack. We collapse
+ // duplicate consecutive protection domains into a single one, as
+ // well as stopping when we hit a privileged frame.
+
+ // Use vframeStream to iterate through Java frames
+ vframeStream vfst(thread);
+
+ oop previous_protection_domain = NULL;
+ Handle privileged_context(thread, NULL);
+ bool is_privileged = false;
+ oop protection_domain = NULL;
+
+ for(; !vfst.at_end(); vfst.next()) {
+ // get method of frame
+ methodOop method = vfst.method();
+ intptr_t* frame_id = vfst.frame_id();
+
+ // check the privileged frames to see if we have a match
+ if (thread->privileged_stack_top() && thread->privileged_stack_top()->frame_id() == frame_id) {
+ // this frame is privileged
+ is_privileged = true;
+ privileged_context = Handle(thread, thread->privileged_stack_top()->privileged_context());
+ protection_domain = thread->privileged_stack_top()->protection_domain();
+ } else {
+ protection_domain = instanceKlass::cast(method->method_holder())->protection_domain();
+ }
+
+ if ((previous_protection_domain != protection_domain) && (protection_domain != NULL)) {
+ local_array->push(protection_domain);
+ previous_protection_domain = protection_domain;
+ }
+
+ if (is_privileged) break;
+ }
+
+
+ // either all the domains on the stack were system domains, or
+ // we had a privileged system domain
+ if (local_array->is_empty()) {
+ if (is_privileged && privileged_context.is_null()) return NULL;
+
+ oop result = java_security_AccessControlContext::create(objArrayHandle(), is_privileged, privileged_context, CHECK_NULL);
+ return JNIHandles::make_local(env, result);
+ }
+
+ // the resource area must be registered in case of a gc
+ RegisterArrayForGC ragc(thread, local_array);
+ objArrayOop context = oopFactory::new_objArray(SystemDictionary::protectionDomain_klass(),
+ local_array->length(), CHECK_NULL);
+ objArrayHandle h_context(thread, context);
+ for (int index = 0; index < local_array->length(); index++) {
+ h_context->obj_at_put(index, local_array->at(index));
+ }
+
+ oop result = java_security_AccessControlContext::create(h_context, is_privileged, privileged_context, CHECK_NULL);
+
+ return JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_QUICK_ENTRY(jboolean, JVM_IsArrayClass(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_IsArrayClass");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ return (k != NULL) && Klass::cast(k)->oop_is_javaArray() ? true : false;
+JVM_END
+
+
+JVM_QUICK_ENTRY(jboolean, JVM_IsPrimitiveClass(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_IsPrimitiveClass");
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ return (jboolean) java_lang_Class::is_primitive(mirror);
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_GetComponentType(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetComponentType");
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ oop result = Reflection::array_component_type(mirror, CHECK_NULL);
+ return (jclass) JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jint, JVM_GetClassModifiers(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassModifiers");
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
+ // Primitive type
+ return JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC;
+ }
+
+ Klass* k = Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls)));
+ debug_only(int computed_modifiers = k->compute_modifier_flags(CHECK_0));
+ assert(k->modifier_flags() == computed_modifiers, "modifiers cache is OK");
+ return k->modifier_flags();
+JVM_END
+
+
+// Inner class reflection ///////////////////////////////////////////////////////////////////////////////
+
+JVM_ENTRY(jobjectArray, JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass))
+ const int inner_class_info_index = 0;
+ const int outer_class_info_index = 1;
+
+ JvmtiVMObjectAllocEventCollector oam;
+ // ofClass is a reference to a java_lang_Class object. The mirror object
+ // of an instanceKlass
+
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass)) ||
+ ! Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_instance()) {
+ oop result = oopFactory::new_objArray(SystemDictionary::class_klass(), 0, CHECK_NULL);
+ return (jobjectArray)JNIHandles::make_local(env, result);
+ }
+
+ instanceKlassHandle k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
+
+ if (k->inner_classes()->length() == 0) {
+ // Neither an inner nor outer class
+ oop result = oopFactory::new_objArray(SystemDictionary::class_klass(), 0, CHECK_NULL);
+ return (jobjectArray)JNIHandles::make_local(env, result);
+ }
+
+ // find inner class info
+ typeArrayHandle icls(thread, k->inner_classes());
+ constantPoolHandle cp(thread, k->constants());
+ int length = icls->length();
+
+ // Allocate temp. result array
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::class_klass(), length/4, CHECK_NULL);
+ objArrayHandle result (THREAD, r);
+ int members = 0;
+
+ for(int i = 0; i < length; i += 4) {
+ int ioff = icls->ushort_at(i + inner_class_info_index);
+ int ooff = icls->ushort_at(i + outer_class_info_index);
+
+ if (ioff != 0 && ooff != 0) {
+ // Check to see if the name matches the class we're looking for
+ // before attempting to find the class.
+ if (cp->klass_name_at_matches(k, ooff)) {
+ klassOop outer_klass = cp->klass_at(ooff, CHECK_NULL);
+ if (outer_klass == k()) {
+ klassOop ik = cp->klass_at(ioff, CHECK_NULL);
+ instanceKlassHandle inner_klass (THREAD, ik);
+
+ // Throws an exception if outer klass has not declared k as
+ // an inner klass
+ Reflection::check_for_inner_class(k, inner_klass, CHECK_NULL);
+
+ result->obj_at_put(members, inner_klass->java_mirror());
+ members++;
+ }
+ }
+ }
+ }
+
+ if (members != length) {
+ // Return array of right length
+ objArrayOop res = oopFactory::new_objArray(SystemDictionary::class_klass(), members, CHECK_NULL);
+ for(int i = 0; i < members; i++) {
+ res->obj_at_put(i, result->obj_at(i));
+ }
+ return (jobjectArray)JNIHandles::make_local(env, res);
+ }
+
+ return (jobjectArray)JNIHandles::make_local(env, result());
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass))
+ const int inner_class_info_index = 0;
+ const int outer_class_info_index = 1;
+
+ // ofClass is a reference to a java_lang_Class object.
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass)) ||
+ ! Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_instance()) {
+ return NULL;
+ }
+
+ instanceKlassHandle k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
+
+ if (k->inner_classes()->length() == 0) {
+ // No inner class info => no declaring class
+ return NULL;
+ }
+
+ typeArrayHandle i_icls(thread, k->inner_classes());
+ constantPoolHandle i_cp(thread, k->constants());
+ int i_length = i_icls->length();
+
+ bool found = false;
+ klassOop ok;
+ instanceKlassHandle outer_klass;
+
+ // Find inner_klass attribute
+ for(int i = 0; i < i_length && !found; i+= 4) {
+ int ioff = i_icls->ushort_at(i + inner_class_info_index);
+ int ooff = i_icls->ushort_at(i + outer_class_info_index);
+
+ if (ioff != 0 && ooff != 0) {
+ // Check to see if the name matches the class we're looking for
+ // before attempting to find the class.
+ if (i_cp->klass_name_at_matches(k, ioff)) {
+ klassOop inner_klass = i_cp->klass_at(ioff, CHECK_NULL);
+ if (k() == inner_klass) {
+ found = true;
+ ok = i_cp->klass_at(ooff, CHECK_NULL);
+ outer_klass = instanceKlassHandle(thread, ok);
+ }
+ }
+ }
+ }
+
+ // If no inner class attribute found for this class.
+ if (!found) return NULL;
+
+ // Throws an exception if outer klass has not declared k as an inner klass
+ Reflection::check_for_inner_class(outer_klass, k, CHECK_NULL);
+
+ return (jclass)JNIHandles::make_local(env, outer_klass->java_mirror());
+JVM_END
+
+
+JVM_ENTRY(jstring, JVM_GetClassSignature(JNIEnv *env, jclass cls))
+ assert (cls != NULL, "illegal class");
+ JVMWrapper("JVM_GetClassSignature");
+ JvmtiVMObjectAllocEventCollector oam;
+ ResourceMark rm(THREAD);
+ // Return null for arrays and primatives
+ if (!java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
+ if (Klass::cast(k)->oop_is_instance()) {
+ symbolHandle sym = symbolHandle(THREAD, instanceKlass::cast(k)->generic_signature());
+ if (sym.is_null()) return NULL;
+ Handle str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
+ return (jstring) JNIHandles::make_local(env, str());
+ }
+ }
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(jbyteArray, JVM_GetClassAnnotations(JNIEnv *env, jclass cls))
+ assert (cls != NULL, "illegal class");
+ JVMWrapper("JVM_GetClassAnnotations");
+ ResourceMark rm(THREAD);
+ // Return null for arrays and primitives
+ if (!java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
+ if (Klass::cast(k)->oop_is_instance()) {
+ return (jbyteArray) JNIHandles::make_local(env,
+ instanceKlass::cast(k)->class_annotations());
+ }
+ }
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(jbyteArray, JVM_GetFieldAnnotations(JNIEnv *env, jobject field))
+ assert(field != NULL, "illegal field");
+ JVMWrapper("JVM_GetFieldAnnotations");
+
+ // some of this code was adapted from from jni_FromReflectedField
+
+ // 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);
+ klassOop k = java_lang_Class::as_klassOop(mirror);
+ int slot = java_lang_reflect_Field::slot(reflected);
+ int modifiers = java_lang_reflect_Field::modifiers(reflected);
+
+ fieldDescriptor fd;
+ KlassHandle kh(THREAD, k);
+ intptr_t offset = instanceKlass::cast(kh())->offset_from_fields(slot);
+
+ if (modifiers & JVM_ACC_STATIC) {
+ // for static fields we only look in the current class
+ if (!instanceKlass::cast(kh())->find_local_field_from_offset(offset,
+ true, &fd)) {
+ assert(false, "cannot find static field");
+ return NULL; // robustness
+ }
+ } else {
+ // for instance fields we start with the current class and work
+ // our way up through the superclass chain
+ if (!instanceKlass::cast(kh())->find_field_from_offset(offset, false,
+ &fd)) {
+ assert(false, "cannot find instance field");
+ return NULL; // robustness
+ }
+ }
+
+ return (jbyteArray) JNIHandles::make_local(env, fd.annotations());
+JVM_END
+
+
+static methodOop jvm_get_method_common(jobject method, TRAPS) {
+ // some of this code was adapted from from jni_FromReflectedMethod
+
+ 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);
+ }
+ klassOop k = java_lang_Class::as_klassOop(mirror);
+
+ KlassHandle kh(THREAD, k);
+ methodOop m = instanceKlass::cast(kh())->method_with_idnum(slot);
+ if (m == NULL) {
+ assert(false, "cannot find method");
+ return NULL; // robustness
+ }
+
+ return m;
+}
+
+
+JVM_ENTRY(jbyteArray, JVM_GetMethodAnnotations(JNIEnv *env, jobject method))
+ JVMWrapper("JVM_GetMethodAnnotations");
+
+ // method is a handle to a java.lang.reflect.Method object
+ methodOop m = jvm_get_method_common(method, CHECK_NULL);
+ return (jbyteArray) JNIHandles::make_local(env, m->annotations());
+JVM_END
+
+
+JVM_ENTRY(jbyteArray, JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method))
+ JVMWrapper("JVM_GetMethodDefaultAnnotationValue");
+
+ // method is a handle to a java.lang.reflect.Method object
+ methodOop m = jvm_get_method_common(method, CHECK_NULL);
+ return (jbyteArray) JNIHandles::make_local(env, m->annotation_default());
+JVM_END
+
+
+JVM_ENTRY(jbyteArray, JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method))
+ JVMWrapper("JVM_GetMethodParameterAnnotations");
+
+ // method is a handle to a java.lang.reflect.Method object
+ methodOop m = jvm_get_method_common(method, CHECK_NULL);
+ return (jbyteArray) JNIHandles::make_local(env, m->parameter_annotations());
+JVM_END
+
+
+// New (JDK 1.4) reflection implementation /////////////////////////////////////
+
+JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly))
+{
+ JVMWrapper("JVM_GetClassDeclaredFields");
+ JvmtiVMObjectAllocEventCollector oam;
+
+ // Exclude primitive types and array types
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass)) ||
+ Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_javaArray()) {
+ // Return empty array
+ oop res = oopFactory::new_objArray(SystemDictionary::reflect_field_klass(), 0, CHECK_NULL);
+ return (jobjectArray) JNIHandles::make_local(env, res);
+ }
+
+ instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
+ constantPoolHandle cp(THREAD, k->constants());
+
+ // Ensure class is linked
+ k->link_class(CHECK_NULL);
+
+ typeArrayHandle fields(THREAD, k->fields());
+ int fields_len = fields->length();
+
+ // 4496456 We need to filter out java.lang.Throwable.backtrace
+ bool skip_backtrace = false;
+
+ // Allocate result
+ int num_fields;
+
+ if (publicOnly) {
+ num_fields = 0;
+ for (int i = 0, j = 0; i < fields_len; i += instanceKlass::next_offset, j++) {
+ int mods = fields->ushort_at(i + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
+ if (mods & JVM_ACC_PUBLIC) ++num_fields;
+ }
+ } else {
+ num_fields = fields_len / instanceKlass::next_offset;
+
+ if (k() == SystemDictionary::throwable_klass()) {
+ num_fields--;
+ skip_backtrace = true;
+ }
+ }
+
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::reflect_field_klass(), num_fields, CHECK_NULL);
+ objArrayHandle result (THREAD, r);
+
+ int out_idx = 0;
+ fieldDescriptor fd;
+ for (int i = 0; i < fields_len; i += instanceKlass::next_offset) {
+ if (skip_backtrace) {
+ // 4496456 skip java.lang.Throwable.backtrace
+ int offset = k->offset_from_fields(i);
+ if (offset == java_lang_Throwable::get_backtrace_offset()) continue;
+ }
+
+ int mods = fields->ushort_at(i + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
+ if (!publicOnly || (mods & JVM_ACC_PUBLIC)) {
+ fd.initialize(k(), i);
+ oop field = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
+ result->obj_at_put(out_idx, field);
+ ++out_idx;
+ }
+ }
+ assert(out_idx == num_fields, "just checking");
+ return (jobjectArray) JNIHandles::make_local(env, result());
+}
+JVM_END
+
+JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly))
+{
+ JVMWrapper("JVM_GetClassDeclaredMethods");
+ JvmtiVMObjectAllocEventCollector oam;
+
+ // Exclude primitive types and array types
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass))
+ || Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_javaArray()) {
+ // Return empty array
+ oop res = oopFactory::new_objArray(SystemDictionary::reflect_method_klass(), 0, CHECK_NULL);
+ return (jobjectArray) JNIHandles::make_local(env, res);
+ }
+
+ instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
+
+ // Ensure class is linked
+ k->link_class(CHECK_NULL);
+
+ objArrayHandle methods (THREAD, k->methods());
+ int methods_length = methods->length();
+ int num_methods = 0;
+
+ int i;
+ for (i = 0; i < methods_length; i++) {
+ methodHandle method(THREAD, (methodOop) methods->obj_at(i));
+ if (!method->is_initializer()) {
+ if (!publicOnly || method->is_public()) {
+ ++num_methods;
+ }
+ }
+ }
+
+ // Allocate result
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::reflect_method_klass(), num_methods, CHECK_NULL);
+ objArrayHandle result (THREAD, r);
+
+ int out_idx = 0;
+ for (i = 0; i < methods_length; i++) {
+ methodHandle method(THREAD, (methodOop) methods->obj_at(i));
+ if (!method->is_initializer()) {
+ if (!publicOnly || method->is_public()) {
+ oop m = Reflection::new_method(method, UseNewReflection, false, CHECK_NULL);
+ result->obj_at_put(out_idx, m);
+ ++out_idx;
+ }
+ }
+ }
+ assert(out_idx == num_methods, "just checking");
+ return (jobjectArray) JNIHandles::make_local(env, result());
+}
+JVM_END
+
+JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly))
+{
+ JVMWrapper("JVM_GetClassDeclaredConstructors");
+ JvmtiVMObjectAllocEventCollector oam;
+
+ // Exclude primitive types and array types
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass))
+ || Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_javaArray()) {
+ // Return empty array
+ oop res = oopFactory::new_objArray(SystemDictionary::reflect_constructor_klass(), 0 , CHECK_NULL);
+ return (jobjectArray) JNIHandles::make_local(env, res);
+ }
+
+ instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
+
+ // Ensure class is linked
+ k->link_class(CHECK_NULL);
+
+ objArrayHandle methods (THREAD, k->methods());
+ int methods_length = methods->length();
+ int num_constructors = 0;
+
+ int i;
+ for (i = 0; i < methods_length; i++) {
+ methodHandle method(THREAD, (methodOop) methods->obj_at(i));
+ if (method->is_initializer() && !method->is_static()) {
+ if (!publicOnly || method->is_public()) {
+ ++num_constructors;
+ }
+ }
+ }
+
+ // Allocate result
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::reflect_constructor_klass(), num_constructors, CHECK_NULL);
+ objArrayHandle result(THREAD, r);
+
+ int out_idx = 0;
+ for (i = 0; i < methods_length; i++) {
+ methodHandle method(THREAD, (methodOop) methods->obj_at(i));
+ if (method->is_initializer() && !method->is_static()) {
+ if (!publicOnly || method->is_public()) {
+ oop m = Reflection::new_constructor(method, CHECK_NULL);
+ result->obj_at_put(out_idx, m);
+ ++out_idx;
+ }
+ }
+ }
+ assert(out_idx == num_constructors, "just checking");
+ return (jobjectArray) JNIHandles::make_local(env, result());
+}
+JVM_END
+
+JVM_ENTRY(jint, JVM_GetClassAccessFlags(JNIEnv *env, jclass cls))
+{
+ JVMWrapper("JVM_GetClassAccessFlags");
+ if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
+ // Primitive type
+ return JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC;
+ }
+
+ Klass* k = Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls)));
+ return k->access_flags().as_int() & JVM_ACC_WRITTEN_FLAGS;
+}
+JVM_END
+
+
+// Constant pool access //////////////////////////////////////////////////////////
+
+JVM_ENTRY(jobject, JVM_GetClassConstantPool(JNIEnv *env, jclass cls))
+{
+ JVMWrapper("JVM_GetClassConstantPool");
+ JvmtiVMObjectAllocEventCollector oam;
+
+ // Return null for primitives and arrays
+ if (!java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ if (Klass::cast(k)->oop_is_instance()) {
+ instanceKlassHandle k_h(THREAD, k);
+ Handle jcp = sun_reflect_ConstantPool::create(CHECK_NULL);
+ sun_reflect_ConstantPool::set_cp_oop(jcp(), k_h->constants());
+ return JNIHandles::make_local(jcp());
+ }
+ }
+ return NULL;
+}
+JVM_END
+
+
+JVM_ENTRY(jint, JVM_ConstantPoolGetSize(JNIEnv *env, jobject unused, jobject jcpool))
+{
+ JVMWrapper("JVM_ConstantPoolGetSize");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ return cp->length();
+}
+JVM_END
+
+
+static void bounds_check(constantPoolHandle cp, jint index, TRAPS) {
+ if (!cp->is_within_bounds(index)) {
+ THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "Constant pool index out of bounds");
+ }
+}
+
+
+JVM_ENTRY(jclass, JVM_ConstantPoolGetClassAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetClassAt");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_klass() && !tag.is_unresolved_klass()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ klassOop k = cp->klass_at(index, CHECK_NULL);
+ return (jclass) JNIHandles::make_local(k->klass_part()->java_mirror());
+}
+JVM_END
+
+
+JVM_ENTRY(jclass, JVM_ConstantPoolGetClassAtIfLoaded(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetClassAtIfLoaded");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_klass() && !tag.is_unresolved_klass()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ klassOop k = constantPoolOopDesc::klass_at_if_loaded(cp, index);
+ if (k == NULL) return NULL;
+ return (jclass) JNIHandles::make_local(k->klass_part()->java_mirror());
+}
+JVM_END
+
+static jobject get_method_at_helper(constantPoolHandle cp, jint index, bool force_resolution, TRAPS) {
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_method() && !tag.is_interface_method()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ int klass_ref = cp->uncached_klass_ref_index_at(index);
+ klassOop k_o;
+ if (force_resolution) {
+ k_o = cp->klass_at(klass_ref, CHECK_NULL);
+ } else {
+ k_o = constantPoolOopDesc::klass_at_if_loaded(cp, klass_ref);
+ if (k_o == NULL) return NULL;
+ }
+ instanceKlassHandle k(THREAD, k_o);
+ symbolOop name = cp->uncached_name_ref_at(index);
+ symbolOop sig = cp->uncached_signature_ref_at(index);
+ methodHandle m (THREAD, k->find_method(name, sig));
+ if (m.is_null()) {
+ THROW_MSG_0(vmSymbols::java_lang_RuntimeException(), "Unable to look up method in target class");
+ }
+ oop method;
+ if (!m->is_initializer() || m->is_static()) {
+ method = Reflection::new_method(m, true, true, CHECK_NULL);
+ } else {
+ method = Reflection::new_constructor(m, CHECK_NULL);
+ }
+ return JNIHandles::make_local(method);
+}
+
+JVM_ENTRY(jobject, JVM_ConstantPoolGetMethodAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetMethodAt");
+ JvmtiVMObjectAllocEventCollector oam;
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ jobject res = get_method_at_helper(cp, index, true, CHECK_NULL);
+ return res;
+}
+JVM_END
+
+JVM_ENTRY(jobject, JVM_ConstantPoolGetMethodAtIfLoaded(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetMethodAtIfLoaded");
+ JvmtiVMObjectAllocEventCollector oam;
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ jobject res = get_method_at_helper(cp, index, false, CHECK_NULL);
+ return res;
+}
+JVM_END
+
+static jobject get_field_at_helper(constantPoolHandle cp, jint index, bool force_resolution, TRAPS) {
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_field()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ int klass_ref = cp->uncached_klass_ref_index_at(index);
+ klassOop k_o;
+ if (force_resolution) {
+ k_o = cp->klass_at(klass_ref, CHECK_NULL);
+ } else {
+ k_o = constantPoolOopDesc::klass_at_if_loaded(cp, klass_ref);
+ if (k_o == NULL) return NULL;
+ }
+ instanceKlassHandle k(THREAD, k_o);
+ symbolOop name = cp->uncached_name_ref_at(index);
+ symbolOop sig = cp->uncached_signature_ref_at(index);
+ fieldDescriptor fd;
+ klassOop target_klass = k->find_field(name, sig, &fd);
+ if (target_klass == NULL) {
+ THROW_MSG_0(vmSymbols::java_lang_RuntimeException(), "Unable to look up field in target class");
+ }
+ oop field = Reflection::new_field(&fd, true, CHECK_NULL);
+ return JNIHandles::make_local(field);
+}
+
+JVM_ENTRY(jobject, JVM_ConstantPoolGetFieldAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetFieldAt");
+ JvmtiVMObjectAllocEventCollector oam;
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ jobject res = get_field_at_helper(cp, index, true, CHECK_NULL);
+ return res;
+}
+JVM_END
+
+JVM_ENTRY(jobject, JVM_ConstantPoolGetFieldAtIfLoaded(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetFieldAtIfLoaded");
+ JvmtiVMObjectAllocEventCollector oam;
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ jobject res = get_field_at_helper(cp, index, false, CHECK_NULL);
+ return res;
+}
+JVM_END
+
+JVM_ENTRY(jobjectArray, JVM_ConstantPoolGetMemberRefInfoAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetMemberRefInfoAt");
+ JvmtiVMObjectAllocEventCollector oam;
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_field_or_method()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ int klass_ref = cp->uncached_klass_ref_index_at(index);
+ symbolHandle klass_name (THREAD, cp->klass_name_at(klass_ref));
+ symbolHandle member_name(THREAD, cp->uncached_name_ref_at(index));
+ symbolHandle member_sig (THREAD, cp->uncached_signature_ref_at(index));
+ objArrayOop dest_o = oopFactory::new_objArray(SystemDictionary::string_klass(), 3, CHECK_NULL);
+ objArrayHandle dest(THREAD, dest_o);
+ Handle str = java_lang_String::create_from_symbol(klass_name, CHECK_NULL);
+ dest->obj_at_put(0, str());
+ str = java_lang_String::create_from_symbol(member_name, CHECK_NULL);
+ dest->obj_at_put(1, str());
+ str = java_lang_String::create_from_symbol(member_sig, CHECK_NULL);
+ dest->obj_at_put(2, str());
+ return (jobjectArray) JNIHandles::make_local(dest());
+}
+JVM_END
+
+JVM_ENTRY(jint, JVM_ConstantPoolGetIntAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetIntAt");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_0);
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_int()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ return cp->int_at(index);
+}
+JVM_END
+
+JVM_ENTRY(jlong, JVM_ConstantPoolGetLongAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetLongAt");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_(0L));
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_long()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ return cp->long_at(index);
+}
+JVM_END
+
+JVM_ENTRY(jfloat, JVM_ConstantPoolGetFloatAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetFloatAt");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_(0.0f));
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_float()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ return cp->float_at(index);
+}
+JVM_END
+
+JVM_ENTRY(jdouble, JVM_ConstantPoolGetDoubleAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetDoubleAt");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_(0.0));
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_double()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ return cp->double_at(index);
+}
+JVM_END
+
+JVM_ENTRY(jstring, JVM_ConstantPoolGetStringAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetStringAt");
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_string() && !tag.is_unresolved_string()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ oop str = cp->string_at(index, CHECK_NULL);
+ return (jstring) JNIHandles::make_local(str);
+}
+JVM_END
+
+JVM_ENTRY(jstring, JVM_ConstantPoolGetUTF8At(JNIEnv *env, jobject unused, jobject jcpool, jint index))
+{
+ JVMWrapper("JVM_ConstantPoolGetUTF8At");
+ JvmtiVMObjectAllocEventCollector oam;
+ constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
+ bounds_check(cp, index, CHECK_NULL);
+ constantTag tag = cp->tag_at(index);
+ if (!tag.is_symbol()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
+ }
+ symbolOop sym_o = cp->symbol_at(index);
+ symbolHandle sym(THREAD, sym_o);
+ Handle str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
+ return (jstring) JNIHandles::make_local(str());
+}
+JVM_END
+
+
+// Assertion support. //////////////////////////////////////////////////////////
+
+JVM_ENTRY(jboolean, JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls))
+ JVMWrapper("JVM_DesiredAssertionStatus");
+ assert(cls != NULL, "bad class");
+
+ oop r = JNIHandles::resolve(cls);
+ assert(! java_lang_Class::is_primitive(r), "primitive classes not allowed");
+ if (java_lang_Class::is_primitive(r)) return false;
+
+ klassOop k = java_lang_Class::as_klassOop(r);
+ assert(Klass::cast(k)->oop_is_instance(), "must be an instance klass");
+ if (! Klass::cast(k)->oop_is_instance()) return false;
+
+ ResourceMark rm(THREAD);
+ const char* name = Klass::cast(k)->name()->as_C_string();
+ bool system_class = Klass::cast(k)->class_loader() == NULL;
+ return JavaAssertions::enabled(name, system_class);
+
+JVM_END
+
+
+// Return a new AssertionStatusDirectives object with the fields filled in with
+// command-line assertion arguments (i.e., -ea, -da).
+JVM_ENTRY(jobject, JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused))
+ JVMWrapper("JVM_AssertionStatusDirectives");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop asd = JavaAssertions::createAssertionStatusDirectives(CHECK_NULL);
+ return JNIHandles::make_local(env, asd);
+JVM_END
+
+// Verification ////////////////////////////////////////////////////////////////////////////////
+
+// Reflection for the verifier /////////////////////////////////////////////////////////////////
+
+// RedefineClasses support: bug 6214132 caused verification to fail.
+// All functions from this section should call the jvmtiThreadSate function:
+// klassOop class_to_verify_considering_redefinition(klassOop klass).
+// The function returns a klassOop of the _scratch_class if the verifier
+// was invoked in the middle of the class redefinition.
+// Otherwise it returns its argument value which is the _the_class klassOop.
+// Please, refer to the description in the jvmtiThreadSate.hpp.
+
+JVM_ENTRY(const char*, JVM_GetClassNameUTF(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassNameUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ return Klass::cast(k)->name()->as_utf8();
+JVM_END
+
+
+JVM_QUICK_ENTRY(void, JVM_GetClassCPTypes(JNIEnv *env, jclass cls, unsigned char *types))
+ JVMWrapper("JVM_GetClassCPTypes");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ // types will have length zero if this is not an instanceKlass
+ // (length is determined by call to JVM_GetClassCPEntriesCount)
+ if (Klass::cast(k)->oop_is_instance()) {
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ for (int index = cp->length() - 1; index >= 0; index--) {
+ constantTag tag = cp->tag_at(index);
+ types[index] = (tag.is_unresolved_klass()) ? JVM_CONSTANT_Class :
+ (tag.is_unresolved_string()) ? JVM_CONSTANT_String : tag.value();
+ }
+ }
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassCPEntriesCount");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ if (!Klass::cast(k)->oop_is_instance())
+ return 0;
+ return instanceKlass::cast(k)->constants()->length();
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetClassFieldsCount(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassFieldsCount");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ if (!Klass::cast(k)->oop_is_instance())
+ return 0;
+ return instanceKlass::cast(k)->fields()->length() / instanceKlass::next_offset;
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetClassMethodsCount(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_GetClassMethodsCount");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ if (!Klass::cast(k)->oop_is_instance())
+ return 0;
+ return instanceKlass::cast(k)->methods()->length();
+JVM_END
+
+
+// The following methods, used for the verifier, are never called with
+// array klasses, so a direct cast to instanceKlass is safe.
+// Typically, these methods are called in a loop with bounds determined
+// by the results of JVM_GetClass{Fields,Methods}Count, which return
+// zero for arrays.
+JVM_QUICK_ENTRY(void, JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cls, jint method_index, unsigned short *exceptions))
+ JVMWrapper("JVM_GetMethodIxExceptionIndexes");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ int length = methodOop(method)->checked_exceptions_length();
+ if (length > 0) {
+ CheckedExceptionElement* table= methodOop(method)->checked_exceptions_start();
+ for (int i = 0; i < length; i++) {
+ exceptions[i] = table[i].class_cp_index;
+ }
+ }
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cls, jint method_index))
+ JVMWrapper("JVM_GetMethodIxExceptionsCount");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->checked_exceptions_length();
+JVM_END
+
+
+JVM_QUICK_ENTRY(void, JVM_GetMethodIxByteCode(JNIEnv *env, jclass cls, jint method_index, unsigned char *code))
+ JVMWrapper("JVM_GetMethodIxByteCode");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ memcpy(code, methodOop(method)->code_base(), methodOop(method)->code_size());
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cls, jint method_index))
+ JVMWrapper("JVM_GetMethodIxByteCodeLength");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->code_size();
+JVM_END
+
+
+JVM_QUICK_ENTRY(void, JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cls, jint method_index, jint entry_index, JVM_ExceptionTableEntryType *entry))
+ JVMWrapper("JVM_GetMethodIxExceptionTableEntry");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ typeArrayOop extable = methodOop(method)->exception_table();
+ entry->start_pc = extable->int_at(entry_index * 4);
+ entry->end_pc = extable->int_at(entry_index * 4 + 1);
+ entry->handler_pc = extable->int_at(entry_index * 4 + 2);
+ entry->catchType = extable->int_at(entry_index * 4 + 3);
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cls, int method_index))
+ JVMWrapper("JVM_GetMethodIxExceptionTableLength");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->exception_table()->length() / 4;
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetMethodIxModifiers(JNIEnv *env, jclass cls, int method_index))
+ JVMWrapper("JVM_GetMethodIxModifiers");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetFieldIxModifiers(JNIEnv *env, jclass cls, int field_index))
+ JVMWrapper("JVM_GetFieldIxModifiers");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ typeArrayOop fields = instanceKlass::cast(k)->fields();
+ return fields->ushort_at(field_index * instanceKlass::next_offset + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cls, int method_index))
+ JVMWrapper("JVM_GetMethodIxLocalsCount");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->max_locals();
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cls, int method_index))
+ JVMWrapper("JVM_GetMethodIxArgsSize");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->size_of_parameters();
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cls, int method_index))
+ JVMWrapper("JVM_GetMethodIxMaxStack");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->max_stack();
+JVM_END
+
+
+JVM_QUICK_ENTRY(jboolean, JVM_IsConstructorIx(JNIEnv *env, jclass cls, int method_index))
+ JVMWrapper("JVM_IsConstructorIx");
+ ResourceMark rm(THREAD);
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->name() == vmSymbols::object_initializer_name();
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cls, jint method_index))
+ JVMWrapper("JVM_GetMethodIxIxUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->name()->as_utf8();
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cls, jint method_index))
+ JVMWrapper("JVM_GetMethodIxSignatureUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
+ return methodOop(method)->signature()->as_utf8();
+JVM_END
+
+/**
+ * All of these JVM_GetCP-xxx methods are used by the old verifier to
+ * read entries in the constant pool. Since the old verifier always
+ * works on a copy of the code, it will not see any rewriting that
+ * may possibly occur in the middle of verification. So it is important
+ * that nothing it calls tries to use the cpCache instead of the raw
+ * constant pool, so we must use cp->uncached_x methods when appropriate.
+ */
+JVM_ENTRY(const char*, JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cls, jint cp_index))
+ JVMWrapper("JVM_GetCPFieldNameUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_Fieldref:
+ return cp->uncached_name_ref_at(cp_index)->as_utf8();
+ default:
+ fatal("JVM_GetCPFieldNameUTF: illegal constant");
+ }
+ ShouldNotReachHere();
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cls, jint cp_index))
+ JVMWrapper("JVM_GetCPMethodNameUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_InterfaceMethodref:
+ case JVM_CONSTANT_Methodref:
+ return cp->uncached_name_ref_at(cp_index)->as_utf8();
+ default:
+ fatal("JVM_GetCPMethodNameUTF: illegal constant");
+ }
+ ShouldNotReachHere();
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cls, jint cp_index))
+ JVMWrapper("JVM_GetCPMethodSignatureUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_InterfaceMethodref:
+ case JVM_CONSTANT_Methodref:
+ return cp->uncached_signature_ref_at(cp_index)->as_utf8();
+ default:
+ fatal("JVM_GetCPMethodSignatureUTF: illegal constant");
+ }
+ ShouldNotReachHere();
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cls, jint cp_index))
+ JVMWrapper("JVM_GetCPFieldSignatureUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_Fieldref:
+ return cp->uncached_signature_ref_at(cp_index)->as_utf8();
+ default:
+ fatal("JVM_GetCPFieldSignatureUTF: illegal constant");
+ }
+ ShouldNotReachHere();
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetCPClassNameUTF(JNIEnv *env, jclass cls, jint cp_index))
+ JVMWrapper("JVM_GetCPClassNameUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ symbolOop classname = cp->klass_name_at(cp_index);
+ return classname->as_utf8();
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cls, jint cp_index))
+ JVMWrapper("JVM_GetCPFieldClassNameUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_Fieldref: {
+ int class_index = cp->uncached_klass_ref_index_at(cp_index);
+ symbolOop classname = cp->klass_name_at(class_index);
+ return classname->as_utf8();
+ }
+ default:
+ fatal("JVM_GetCPFieldClassNameUTF: illegal constant");
+ }
+ ShouldNotReachHere();
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(const char*, JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cls, jint cp_index))
+ JVMWrapper("JVM_GetCPMethodClassNameUTF");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_Methodref:
+ case JVM_CONSTANT_InterfaceMethodref: {
+ int class_index = cp->uncached_klass_ref_index_at(cp_index);
+ symbolOop classname = cp->klass_name_at(class_index);
+ return classname->as_utf8();
+ }
+ default:
+ fatal("JVM_GetCPMethodClassNameUTF: illegal constant");
+ }
+ ShouldNotReachHere();
+ return NULL;
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetCPFieldModifiers(JNIEnv *env, jclass cls, int cp_index, jclass called_cls))
+ JVMWrapper("JVM_GetCPFieldModifiers");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ klassOop k_called = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(called_cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ k_called = JvmtiThreadState::class_to_verify_considering_redefinition(k_called, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ constantPoolOop cp_called = instanceKlass::cast(k_called)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_Fieldref: {
+ symbolOop name = cp->uncached_name_ref_at(cp_index);
+ symbolOop signature = cp->uncached_signature_ref_at(cp_index);
+ typeArrayOop fields = instanceKlass::cast(k_called)->fields();
+ int fields_count = fields->length();
+ for (int i = 0; i < fields_count; i += instanceKlass::next_offset) {
+ if (cp_called->symbol_at(fields->ushort_at(i + instanceKlass::name_index_offset)) == name &&
+ cp_called->symbol_at(fields->ushort_at(i + instanceKlass::signature_index_offset)) == signature) {
+ return fields->ushort_at(i + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
+ }
+ }
+ return -1;
+ }
+ default:
+ fatal("JVM_GetCPFieldModifiers: illegal constant");
+ }
+ ShouldNotReachHere();
+ return 0;
+JVM_END
+
+
+JVM_QUICK_ENTRY(jint, JVM_GetCPMethodModifiers(JNIEnv *env, jclass cls, int cp_index, jclass called_cls))
+ JVMWrapper("JVM_GetCPMethodModifiers");
+ klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
+ klassOop k_called = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(called_cls));
+ k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
+ k_called = JvmtiThreadState::class_to_verify_considering_redefinition(k_called, thread);
+ constantPoolOop cp = instanceKlass::cast(k)->constants();
+ switch (cp->tag_at(cp_index).value()) {
+ case JVM_CONSTANT_Methodref:
+ case JVM_CONSTANT_InterfaceMethodref: {
+ symbolOop name = cp->uncached_name_ref_at(cp_index);
+ symbolOop signature = cp->uncached_signature_ref_at(cp_index);
+ objArrayOop methods = instanceKlass::cast(k_called)->methods();
+ int methods_count = methods->length();
+ for (int i = 0; i < methods_count; i++) {
+ methodOop method = methodOop(methods->obj_at(i));
+ if (method->name() == name && method->signature() == signature) {
+ return method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
+ }
+ }
+ return -1;
+ }
+ default:
+ fatal("JVM_GetCPMethodModifiers: illegal constant");
+ }
+ ShouldNotReachHere();
+ return 0;
+JVM_END
+
+
+// Misc //////////////////////////////////////////////////////////////////////////////////////////////
+
+JVM_LEAF(void, JVM_ReleaseUTF(const char *utf))
+ // So long as UTF8::convert_to_utf8 returns resource strings, we don't have to do anything
+JVM_END
+
+
+JVM_ENTRY(jboolean, JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2))
+ JVMWrapper("JVM_IsSameClassPackage");
+ oop class1_mirror = JNIHandles::resolve_non_null(class1);
+ oop class2_mirror = JNIHandles::resolve_non_null(class2);
+ klassOop klass1 = java_lang_Class::as_klassOop(class1_mirror);
+ klassOop klass2 = java_lang_Class::as_klassOop(class2_mirror);
+ return (jboolean) Reflection::is_same_class_package(klass1, klass2);
+JVM_END
+
+
+// IO functions ////////////////////////////////////////////////////////////////////////////////////////
+
+JVM_LEAF(jint, JVM_Open(const char *fname, jint flags, jint mode))
+ JVMWrapper2("JVM_Open (%s)", fname);
+
+ //%note jvm_r6
+ int result = hpi::open(fname, flags, mode);
+ if (result >= 0) {
+ return result;
+ } else {
+ switch(errno) {
+ case EEXIST:
+ return JVM_EEXIST;
+ default:
+ return -1;
+ }
+ }
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Close(jint fd))
+ JVMWrapper2("JVM_Close (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::close(fd);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Read(jint fd, char *buf, jint nbytes))
+ JVMWrapper2("JVM_Read (0x%x)", fd);
+
+ //%note jvm_r6
+ return (jint)hpi::read(fd, buf, nbytes);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Write(jint fd, char *buf, jint nbytes))
+ JVMWrapper2("JVM_Write (0x%x)", fd);
+
+ //%note jvm_r6
+ return (jint)hpi::write(fd, buf, nbytes);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Available(jint fd, jlong *pbytes))
+ JVMWrapper2("JVM_Available (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::available(fd, pbytes);
+JVM_END
+
+
+JVM_LEAF(jlong, JVM_Lseek(jint fd, jlong offset, jint whence))
+ JVMWrapper4("JVM_Lseek (0x%x, %Ld, %d)", fd, offset, whence);
+ //%note jvm_r6
+ return hpi::lseek(fd, offset, whence);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_SetLength(jint fd, jlong length))
+ JVMWrapper3("JVM_SetLength (0x%x, %Ld)", fd, length);
+ return hpi::ftruncate(fd, length);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Sync(jint fd))
+ JVMWrapper2("JVM_Sync (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::fsync(fd);
+JVM_END
+
+
+// Printing support //////////////////////////////////////////////////
+extern "C" {
+
+int jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args) {
+ // see bug 4399518, 4417214
+ if ((intptr_t)count <= 0) return -1;
+ return vsnprintf(str, count, fmt, args);
+}
+
+
+int jio_snprintf(char *str, size_t count, const char *fmt, ...) {
+ va_list args;
+ int len;
+ va_start(args, fmt);
+ len = jio_vsnprintf(str, count, fmt, args);
+ va_end(args);
+ return len;
+}
+
+
+int jio_fprintf(FILE* f, const char *fmt, ...) {
+ int len;
+ va_list args;
+ va_start(args, fmt);
+ len = jio_vfprintf(f, fmt, args);
+ va_end(args);
+ return len;
+}
+
+
+int jio_vfprintf(FILE* f, const char *fmt, va_list args) {
+ if (Arguments::vfprintf_hook() != NULL) {
+ return Arguments::vfprintf_hook()(f, fmt, args);
+ } else {
+ return vfprintf(f, fmt, args);
+ }
+}
+
+
+int jio_printf(const char *fmt, ...) {
+ int len;
+ va_list args;
+ va_start(args, fmt);
+ len = jio_vfprintf(defaultStream::output_stream(), fmt, args);
+ va_end(args);
+ return len;
+}
+
+
+// HotSpot specific jio method
+void jio_print(const char* s) {
+ // Try to make this function as atomic as possible.
+ if (Arguments::vfprintf_hook() != NULL) {
+ jio_fprintf(defaultStream::output_stream(), "%s", s);
+ } else {
+ ::write(defaultStream::output_fd(), s, (int)strlen(s));
+ }
+}
+
+} // Extern C
+
+// java.lang.Thread //////////////////////////////////////////////////////////////////////////////
+
+// In most of the JVM Thread support functions we need to be sure to lock the Threads_lock
+// to prevent the target thread from exiting after we have a pointer to the C++ Thread or
+// OSThread objects. The exception to this rule is when the target object is the thread
+// doing the operation, in which case we know that the thread won't exit until the
+// operation is done (all exits being voluntary). There are a few cases where it is
+// rather silly to do operations on yourself, like resuming yourself or asking whether
+// you are alive. While these can still happen, they are not subject to deadlocks if
+// the lock is held while the operation occurs (this is not the case for suspend, for
+// instance), and are very unlikely. Because IsAlive needs to be fast and its
+// implementation is local to this file, we always lock Threads_lock for that one.
+
+static void thread_entry(JavaThread* thread, TRAPS) {
+ HandleMark hm(THREAD);
+ Handle obj(THREAD, thread->threadObj());
+ JavaValue result(T_VOID);
+ JavaCalls::call_virtual(&result,
+ obj,
+ KlassHandle(THREAD, SystemDictionary::thread_klass()),
+ vmSymbolHandles::run_method_name(),
+ vmSymbolHandles::void_method_signature(),
+ THREAD);
+}
+
+
+JVM_ENTRY(void, JVM_StartThread(JNIEnv* env, jobject jthread))
+ JVMWrapper("JVM_StartThread");
+ JavaThread *native_thread = NULL;
+
+ // We cannot hold the Threads_lock when we throw an exception,
+ // due to rank ordering issues. Example: we might need to grab the
+ // Heap_lock while we construct the exception.
+ bool throw_illegal_thread_state = false;
+
+ // We must release the Threads_lock before we can post a jvmti event
+ // in Thread::start.
+ {
+ // Ensure that the C++ Thread and OSThread structures aren't freed before
+ // we operate.
+ MutexLocker mu(Threads_lock);
+
+ // Check to see if we're running a thread that's already exited or was
+ // stopped (is_stillborn) or is still active (thread is not NULL).
+ if (java_lang_Thread::is_stillborn(JNIHandles::resolve_non_null(jthread)) ||
+ java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread)) != NULL) {
+ throw_illegal_thread_state = true;
+ } else {
+ jlong size =
+ java_lang_Thread::stackSize(JNIHandles::resolve_non_null(jthread));
+ // Allocate the C++ Thread structure and create the native thread. The
+ // stack size retrieved from java is signed, but the constructor takes
+ // size_t (an unsigned type), so avoid passing negative values which would
+ // result in really large stacks.
+ size_t sz = size > 0 ? (size_t) size : 0;
+ native_thread = new JavaThread(&thread_entry, sz);
+
+ // At this point it may be possible that no osthread was created for the
+ // JavaThread due to lack of memory. Check for this situation and throw
+ // an exception if necessary. Eventually we may want to change this so
+ // that we only grab the lock if the thread was created successfully -
+ // then we can also do this check and throw the exception in the
+ // JavaThread constructor.
+ if (native_thread->osthread() != NULL) {
+ // Note: the current thread is not being used within "prepare".
+ native_thread->prepare(jthread);
+ }
+ }
+ }
+
+ if (throw_illegal_thread_state) {
+ THROW(vmSymbols::java_lang_IllegalThreadStateException());
+ }
+
+ assert(native_thread != NULL, "Starting null thread?");
+
+ if (native_thread->osthread() == NULL) {
+ // No one should hold a reference to the 'native_thread'.
+ delete native_thread;
+ if (JvmtiExport::should_post_resource_exhausted()) {
+ JvmtiExport::post_resource_exhausted(
+ JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR | JVMTI_RESOURCE_EXHAUSTED_THREADS,
+ "unable to create new native thread");
+ }
+ THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(),
+ "unable to create new native thread");
+ }
+
+ Thread::start(native_thread);
+
+JVM_END
+
+// JVM_Stop is implemented using a VM_Operation, so threads are forced to safepoints
+// before the quasi-asynchronous exception is delivered. This is a little obtrusive,
+// but is thought to be reliable and simple. In the case, where the receiver is the
+// save thread as the sender, no safepoint is needed.
+JVM_ENTRY(void, JVM_StopThread(JNIEnv* env, jobject jthread, jobject throwable))
+ JVMWrapper("JVM_StopThread");
+
+ oop java_throwable = JNIHandles::resolve(throwable);
+ if (java_throwable == NULL) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ }
+ oop java_thread = JNIHandles::resolve_non_null(jthread);
+ JavaThread* receiver = java_lang_Thread::thread(java_thread);
+ Events::log("JVM_StopThread thread JavaThread " INTPTR_FORMAT " as oop " INTPTR_FORMAT " [exception " INTPTR_FORMAT "]", receiver, (address)java_thread, throwable);
+ // First check if thread already exited
+ if (receiver != NULL) {
+ // Check if exception is getting thrown at self (use oop equality, since the
+ // target object might exit)
+ if (java_thread == thread->threadObj()) {
+ // This is a change from JDK 1.1, but JDK 1.2 will also do it:
+ // NOTE (from JDK 1.2): this is done solely to prevent stopped
+ // threads from being restarted.
+ // Fix for 4314342, 4145910, perhaps others: it now doesn't have
+ // any effect on the "liveness" of a thread; see
+ // JVM_IsThreadAlive, below.
+ if (java_throwable->is_a(SystemDictionary::threaddeath_klass())) {
+ java_lang_Thread::set_stillborn(java_thread);
+ }
+ THROW_OOP(java_throwable);
+ } else {
+ // Enques a VM_Operation to stop all threads and then deliver the exception...
+ Thread::send_async_exception(java_thread, JNIHandles::resolve(throwable));
+ }
+ }
+JVM_END
+
+
+JVM_ENTRY(jboolean, JVM_IsThreadAlive(JNIEnv* env, jobject jthread))
+ JVMWrapper("JVM_IsThreadAlive");
+
+ oop thread_oop = JNIHandles::resolve_non_null(jthread);
+ return java_lang_Thread::is_alive(thread_oop);
+JVM_END
+
+
+JVM_ENTRY(void, JVM_SuspendThread(JNIEnv* env, jobject jthread))
+ JVMWrapper("JVM_SuspendThread");
+ oop java_thread = JNIHandles::resolve_non_null(jthread);
+ JavaThread* receiver = java_lang_Thread::thread(java_thread);
+
+ if (receiver != NULL) {
+ // thread has run and has not exited (still on threads list)
+
+ {
+ MutexLockerEx ml(receiver->SR_lock(), Mutex::_no_safepoint_check_flag);
+ if (receiver->is_external_suspend()) {
+ // Don't allow nested external suspend requests. We can't return
+ // an error from this interface so just ignore the problem.
+ return;
+ }
+ if (receiver->is_exiting()) { // thread is in the process of exiting
+ return;
+ }
+ receiver->set_external_suspend();
+ }
+
+ // java_suspend() will catch threads in the process of exiting
+ // and will ignore them.
+ receiver->java_suspend();
+
+ // It would be nice to have the following assertion in all the
+ // time, but it is possible for a racing resume request to have
+ // resumed this thread right after we suspended it. Temporarily
+ // enable this assertion if you are chasing a different kind of
+ // bug.
+ //
+ // assert(java_lang_Thread::thread(receiver->threadObj()) == NULL ||
+ // receiver->is_being_ext_suspended(), "thread is not suspended");
+ }
+JVM_END
+
+
+JVM_ENTRY(void, JVM_ResumeThread(JNIEnv* env, jobject jthread))
+ JVMWrapper("JVM_ResumeThread");
+ // Ensure that the C++ Thread and OSThread structures aren't freed before we operate.
+ // We need to *always* get the threads lock here, since this operation cannot be allowed during
+ // a safepoint. The safepoint code relies on suspending a thread to examine its state. If other
+ // threads randomly resumes threads, then a thread might not be suspended when the safepoint code
+ // looks at it.
+ MutexLocker ml(Threads_lock);
+ JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
+ if (thr != NULL) {
+ // the thread has run and is not in the process of exiting
+ thr->java_resume();
+ }
+JVM_END
+
+
+JVM_ENTRY(void, JVM_SetThreadPriority(JNIEnv* env, jobject jthread, jint prio))
+ JVMWrapper("JVM_SetThreadPriority");
+ // Ensure that the C++ Thread and OSThread structures aren't freed before we operate
+ MutexLocker ml(Threads_lock);
+ oop java_thread = JNIHandles::resolve_non_null(jthread);
+ java_lang_Thread::set_priority(java_thread, (ThreadPriority)prio);
+ JavaThread* thr = java_lang_Thread::thread(java_thread);
+ if (thr != NULL) { // Thread not yet started; priority pushed down when it is
+ Thread::set_priority(thr, (ThreadPriority)prio);
+ }
+JVM_END
+
+
+JVM_ENTRY(void, JVM_Yield(JNIEnv *env, jclass threadClass))
+ JVMWrapper("JVM_Yield");
+ if (os::dont_yield()) return;
+ // When ConvertYieldToSleep is off (default), this matches the classic VM use of yield.
+ // Critical for similar threading behaviour
+ if (ConvertYieldToSleep) {
+ os::sleep(thread, MinSleepInterval, false);
+ } else {
+ os::yield();
+ }
+JVM_END
+
+
+JVM_ENTRY(void, JVM_Sleep(JNIEnv* env, jclass threadClass, jlong millis))
+ JVMWrapper("JVM_Sleep");
+
+ if (millis < 0) {
+ THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "timeout value is negative");
+ }
+
+ if (Thread::is_interrupted (THREAD, true) && !HAS_PENDING_EXCEPTION) {
+ THROW_MSG(vmSymbols::java_lang_InterruptedException(), "sleep interrupted");
+ }
+
+ // Save current thread state and restore it at the end of this block.
+ // And set new thread state to SLEEPING.
+ JavaThreadSleepState jtss(thread);
+
+ if (millis == 0) {
+ // When ConvertSleepToYield is on, this matches the classic VM implementation of
+ // JVM_Sleep. Critical for similar threading behaviour (Win32)
+ // It appears that in certain GUI contexts, it may be beneficial to do a short sleep
+ // for SOLARIS
+ if (ConvertSleepToYield) {
+ os::yield();
+ } else {
+ ThreadState old_state = thread->osthread()->get_state();
+ thread->osthread()->set_state(SLEEPING);
+ os::sleep(thread, MinSleepInterval, false);
+ thread->osthread()->set_state(old_state);
+ }
+ } else {
+ ThreadState old_state = thread->osthread()->get_state();
+ thread->osthread()->set_state(SLEEPING);
+ if (os::sleep(thread, millis, true) == OS_INTRPT) {
+ // An asynchronous exception (e.g., ThreadDeathException) could have been thrown on
+ // us while we were sleeping. We do not overwrite those.
+ if (!HAS_PENDING_EXCEPTION) {
+ // TODO-FIXME: THROW_MSG returns which means we will not call set_state()
+ // to properly restore the thread state. That's likely wrong.
+ THROW_MSG(vmSymbols::java_lang_InterruptedException(), "sleep interrupted");
+ }
+ }
+ thread->osthread()->set_state(old_state);
+ }
+JVM_END
+
+JVM_ENTRY(jobject, JVM_CurrentThread(JNIEnv* env, jclass threadClass))
+ JVMWrapper("JVM_CurrentThread");
+ oop jthread = thread->threadObj();
+ assert (thread != NULL, "no current thread!");
+ return JNIHandles::make_local(env, jthread);
+JVM_END
+
+
+JVM_ENTRY(jint, JVM_CountStackFrames(JNIEnv* env, jobject jthread))
+ JVMWrapper("JVM_CountStackFrames");
+
+ // Ensure that the C++ Thread and OSThread structures aren't freed before we operate
+ oop java_thread = JNIHandles::resolve_non_null(jthread);
+ bool throw_illegal_thread_state = false;
+ int count = 0;
+
+ {
+ MutexLockerEx ml(thread->threadObj() == java_thread ? NULL : Threads_lock);
+ // We need to re-resolve the java_thread, since a GC might have happened during the
+ // acquire of the lock
+ JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
+
+ if (thr == NULL) {
+ // do nothing
+ } else if(! thr->is_external_suspend() || ! thr->frame_anchor()->walkable()) {
+ // Check whether this java thread has been suspended already. If not, throws
+ // IllegalThreadStateException. We defer to throw that exception until
+ // Threads_lock is released since loading exception class has to leave VM.
+ // The correct way to test a thread is actually suspended is
+ // wait_for_ext_suspend_completion(), but we can't call that while holding
+ // the Threads_lock. The above tests are sufficient for our purposes
+ // provided the walkability of the stack is stable - which it isn't
+ // 100% but close enough for most practical purposes.
+ throw_illegal_thread_state = true;
+ } else {
+ // Count all java activation, i.e., number of vframes
+ for(vframeStream vfst(thr); !vfst.at_end(); vfst.next()) {
+ // Native frames are not counted
+ if (!vfst.method()->is_native()) count++;
+ }
+ }
+ }
+
+ if (throw_illegal_thread_state) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalThreadStateException(),
+ "this thread is not suspended");
+ }
+ return count;
+JVM_END
+
+// Consider: A better way to implement JVM_Interrupt() is to acquire
+// Threads_lock to resolve the jthread into a Thread pointer, fetch
+// Thread->platformevent, Thread->native_thr, Thread->parker, etc.,
+// drop Threads_lock, and the perform the unpark() and thr_kill() operations
+// outside the critical section. Threads_lock is hot so we want to minimize
+// the hold-time. A cleaner interface would be to decompose interrupt into
+// two steps. The 1st phase, performed under Threads_lock, would return
+// a closure that'd be invoked after Threads_lock was dropped.
+// This tactic is safe as PlatformEvent and Parkers are type-stable (TSM) and
+// admit spurious wakeups.
+
+JVM_ENTRY(void, JVM_Interrupt(JNIEnv* env, jobject jthread))
+ JVMWrapper("JVM_Interrupt");
+
+ // Ensure that the C++ Thread and OSThread structures aren't freed before we operate
+ oop java_thread = JNIHandles::resolve_non_null(jthread);
+ MutexLockerEx ml(thread->threadObj() == java_thread ? NULL : Threads_lock);
+ // We need to re-resolve the java_thread, since a GC might have happened during the
+ // acquire of the lock
+ JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
+ if (thr != NULL) {
+ Thread::interrupt(thr);
+ }
+JVM_END
+
+
+JVM_QUICK_ENTRY(jboolean, JVM_IsInterrupted(JNIEnv* env, jobject jthread, jboolean clear_interrupted))
+ JVMWrapper("JVM_IsInterrupted");
+
+ // Ensure that the C++ Thread and OSThread structures aren't freed before we operate
+ oop java_thread = JNIHandles::resolve_non_null(jthread);
+ MutexLockerEx ml(thread->threadObj() == java_thread ? NULL : Threads_lock);
+ // We need to re-resolve the java_thread, since a GC might have happened during the
+ // acquire of the lock
+ JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
+ if (thr == NULL) {
+ return JNI_FALSE;
+ } else {
+ return (jboolean) Thread::is_interrupted(thr, clear_interrupted != 0);
+ }
+JVM_END
+
+
+// Return true iff the current thread has locked the object passed in
+
+JVM_ENTRY(jboolean, JVM_HoldsLock(JNIEnv* env, jclass threadClass, jobject obj))
+ JVMWrapper("JVM_HoldsLock");
+ assert(THREAD->is_Java_thread(), "sanity check");
+ if (obj == NULL) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE);
+ }
+ Handle h_obj(THREAD, JNIHandles::resolve(obj));
+ return ObjectSynchronizer::current_thread_holds_lock((JavaThread*)THREAD, h_obj);
+JVM_END
+
+
+JVM_ENTRY(void, JVM_DumpAllStacks(JNIEnv* env, jclass))
+ JVMWrapper("JVM_DumpAllStacks");
+ VM_PrintThreads op;
+ VMThread::execute(&op);
+ if (JvmtiExport::should_post_data_dump()) {
+ JvmtiExport::post_data_dump();
+ }
+JVM_END
+
+
+// java.lang.SecurityManager ///////////////////////////////////////////////////////////////////////
+
+static bool is_trusted_frame(JavaThread* jthread, vframeStream* vfst) {
+ assert(jthread->is_Java_thread(), "must be a Java thread");
+ if (jthread->privileged_stack_top() == NULL) return false;
+ if (jthread->privileged_stack_top()->frame_id() == vfst->frame_id()) {
+ oop loader = jthread->privileged_stack_top()->class_loader();
+ if (loader == NULL) return true;
+ bool trusted = java_lang_ClassLoader::is_trusted_loader(loader);
+ if (trusted) return true;
+ }
+ return false;
+}
+
+JVM_ENTRY(jclass, JVM_CurrentLoadedClass(JNIEnv *env))
+ JVMWrapper("JVM_CurrentLoadedClass");
+ ResourceMark rm(THREAD);
+
+ for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
+ // if a method in a class in a trusted loader is in a doPrivileged, return NULL
+ bool trusted = is_trusted_frame(thread, &vfst);
+ if (trusted) return NULL;
+
+ methodOop m = vfst.method();
+ if (!m->is_native()) {
+ klassOop holder = m->method_holder();
+ oop loader = instanceKlass::cast(holder)->class_loader();
+ if (loader != NULL && !java_lang_ClassLoader::is_trusted_loader(loader)) {
+ return (jclass) JNIHandles::make_local(env, Klass::cast(holder)->java_mirror());
+ }
+ }
+ }
+ return NULL;
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_CurrentClassLoader(JNIEnv *env))
+ JVMWrapper("JVM_CurrentClassLoader");
+ ResourceMark rm(THREAD);
+
+ for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
+
+ // if a method in a class in a trusted loader is in a doPrivileged, return NULL
+ bool trusted = is_trusted_frame(thread, &vfst);
+ if (trusted) return NULL;
+
+ methodOop m = vfst.method();
+ if (!m->is_native()) {
+ klassOop holder = m->method_holder();
+ assert(holder->is_klass(), "just checking");
+ oop loader = instanceKlass::cast(holder)->class_loader();
+ if (loader != NULL && !java_lang_ClassLoader::is_trusted_loader(loader)) {
+ return JNIHandles::make_local(env, loader);
+ }
+ }
+ }
+ return NULL;
+JVM_END
+
+
+// Utility object for collecting method holders walking down the stack
+class KlassLink: public ResourceObj {
+ public:
+ KlassHandle klass;
+ KlassLink* next;
+
+ KlassLink(KlassHandle k) { klass = k; next = NULL; }
+};
+
+
+JVM_ENTRY(jobjectArray, JVM_GetClassContext(JNIEnv *env))
+ JVMWrapper("JVM_GetClassContext");
+ ResourceMark rm(THREAD);
+ JvmtiVMObjectAllocEventCollector oam;
+ // Collect linked list of (handles to) method holders
+ KlassLink* first = NULL;
+ KlassLink* last = NULL;
+ int depth = 0;
+
+ for(vframeStream vfst(thread); !vfst.at_end(); vfst.security_get_caller_frame(1)) {
+ // Native frames are not returned
+ if (!vfst.method()->is_native()) {
+ klassOop holder = vfst.method()->method_holder();
+ assert(holder->is_klass(), "just checking");
+ depth++;
+ KlassLink* l = new KlassLink(KlassHandle(thread, holder));
+ if (first == NULL) {
+ first = last = l;
+ } else {
+ last->next = l;
+ last = l;
+ }
+ }
+ }
+
+ // Create result array of type [Ljava/lang/Class;
+ objArrayOop result = oopFactory::new_objArray(SystemDictionary::class_klass(), depth, CHECK_NULL);
+ // Fill in mirrors corresponding to method holders
+ int index = 0;
+ while (first != NULL) {
+ result->obj_at_put(index++, Klass::cast(first->klass())->java_mirror());
+ first = first->next;
+ }
+ assert(index == depth, "just checking");
+
+ return (jobjectArray) JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jint, JVM_ClassDepth(JNIEnv *env, jstring name))
+ JVMWrapper("JVM_ClassDepth");
+ ResourceMark rm(THREAD);
+ Handle h_name (THREAD, JNIHandles::resolve_non_null(name));
+ Handle class_name_str = java_lang_String::internalize_classname(h_name, CHECK_0);
+
+ const char* str = java_lang_String::as_utf8_string(class_name_str());
+ symbolHandle class_name_sym =
+ symbolHandle(THREAD, SymbolTable::probe(str, (int)strlen(str)));
+ if (class_name_sym.is_null()) {
+ return -1;
+ }
+
+ int depth = 0;
+
+ for(vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
+ if (!vfst.method()->is_native()) {
+ klassOop holder = vfst.method()->method_holder();
+ assert(holder->is_klass(), "just checking");
+ if (instanceKlass::cast(holder)->name() == class_name_sym()) {
+ return depth;
+ }
+ depth++;
+ }
+ }
+ return -1;
+JVM_END
+
+
+JVM_ENTRY(jint, JVM_ClassLoaderDepth(JNIEnv *env))
+ JVMWrapper("JVM_ClassLoaderDepth");
+ ResourceMark rm(THREAD);
+ int depth = 0;
+ for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
+ // if a method in a class in a trusted loader is in a doPrivileged, return -1
+ bool trusted = is_trusted_frame(thread, &vfst);
+ if (trusted) return -1;
+
+ methodOop m = vfst.method();
+ if (!m->is_native()) {
+ klassOop holder = m->method_holder();
+ assert(holder->is_klass(), "just checking");
+ oop loader = instanceKlass::cast(holder)->class_loader();
+ if (loader != NULL && !java_lang_ClassLoader::is_trusted_loader(loader)) {
+ return depth;
+ }
+ depth++;
+ }
+ }
+ return -1;
+JVM_END
+
+
+// java.lang.Package ////////////////////////////////////////////////////////////////
+
+
+JVM_ENTRY(jstring, JVM_GetSystemPackage(JNIEnv *env, jstring name))
+ JVMWrapper("JVM_GetSystemPackage");
+ ResourceMark rm(THREAD);
+ JvmtiVMObjectAllocEventCollector oam;
+ char* str = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(name));
+ oop result = ClassLoader::get_system_package(str, CHECK_NULL);
+ return (jstring) JNIHandles::make_local(result);
+JVM_END
+
+
+JVM_ENTRY(jobjectArray, JVM_GetSystemPackages(JNIEnv *env))
+ JVMWrapper("JVM_GetSystemPackages");
+ JvmtiVMObjectAllocEventCollector oam;
+ objArrayOop result = ClassLoader::get_system_packages(CHECK_NULL);
+ return (jobjectArray) JNIHandles::make_local(result);
+JVM_END
+
+
+// ObjectInputStream ///////////////////////////////////////////////////////////////
+
+bool force_verify_field_access(klassOop current_class, klassOop field_class, AccessFlags access, bool classloader_only) {
+ if (current_class == NULL) {
+ return true;
+ }
+ if ((current_class == field_class) || access.is_public()) {
+ return true;
+ }
+
+ if (access.is_protected()) {
+ // See if current_class is a subclass of field_class
+ if (Klass::cast(current_class)->is_subclass_of(field_class)) {
+ return true;
+ }
+ }
+
+ return (!access.is_private() && instanceKlass::cast(current_class)->is_same_class_package(field_class));
+}
+
+
+// JVM_AllocateNewObject and JVM_AllocateNewArray are unused as of 1.4
+JVM_ENTRY(jobject, JVM_AllocateNewObject(JNIEnv *env, jobject receiver, jclass currClass, jclass initClass))
+ JVMWrapper("JVM_AllocateNewObject");
+ JvmtiVMObjectAllocEventCollector oam;
+ // Receiver is not used
+ oop curr_mirror = JNIHandles::resolve_non_null(currClass);
+ oop init_mirror = JNIHandles::resolve_non_null(initClass);
+
+ // Cannot instantiate primitive types
+ if (java_lang_Class::is_primitive(curr_mirror) || java_lang_Class::is_primitive(init_mirror)) {
+ ResourceMark rm(THREAD);
+ THROW_0(vmSymbols::java_lang_InvalidClassException());
+ }
+
+ // Arrays not allowed here, must use JVM_AllocateNewArray
+ if (Klass::cast(java_lang_Class::as_klassOop(curr_mirror))->oop_is_javaArray() ||
+ Klass::cast(java_lang_Class::as_klassOop(init_mirror))->oop_is_javaArray()) {
+ ResourceMark rm(THREAD);
+ THROW_0(vmSymbols::java_lang_InvalidClassException());
+ }
+
+ instanceKlassHandle curr_klass (THREAD, java_lang_Class::as_klassOop(curr_mirror));
+ instanceKlassHandle init_klass (THREAD, java_lang_Class::as_klassOop(init_mirror));
+
+ assert(curr_klass->is_subclass_of(init_klass()), "just checking");
+
+ // Interfaces, abstract classes, and java.lang.Class classes cannot be instantiated directly.
+ curr_klass->check_valid_for_instantiation(false, CHECK_NULL);
+
+ // Make sure klass is initialized, since we are about to instantiate one of them.
+ curr_klass->initialize(CHECK_NULL);
+
+ methodHandle m (THREAD,
+ init_klass->find_method(vmSymbols::object_initializer_name(),
+ vmSymbols::void_method_signature()));
+ if (m.is_null()) {
+ ResourceMark rm(THREAD);
+ THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(),
+ methodOopDesc::name_and_sig_as_C_string(Klass::cast(init_klass()),
+ vmSymbols::object_initializer_name(),
+ vmSymbols::void_method_signature()));
+ }
+
+ if (curr_klass == init_klass && !m->is_public()) {
+ // Calling the constructor for class 'curr_klass'.
+ // Only allow calls to a public no-arg constructor.
+ // This path corresponds to creating an Externalizable object.
+ THROW_0(vmSymbols::java_lang_IllegalAccessException());
+ }
+
+ if (!force_verify_field_access(curr_klass(), init_klass(), m->access_flags(), false)) {
+ // subclass 'curr_klass' does not have access to no-arg constructor of 'initcb'
+ THROW_0(vmSymbols::java_lang_IllegalAccessException());
+ }
+
+ Handle obj = curr_klass->allocate_instance_handle(CHECK_NULL);
+ // Call constructor m. This might call a constructor higher up in the hierachy
+ JavaCalls::call_default_constructor(thread, m, obj, CHECK_NULL);
+
+ return JNIHandles::make_local(obj());
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass, jint length))
+ JVMWrapper("JVM_AllocateNewArray");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop mirror = JNIHandles::resolve_non_null(currClass);
+
+ if (java_lang_Class::is_primitive(mirror)) {
+ THROW_0(vmSymbols::java_lang_InvalidClassException());
+ }
+ klassOop k = java_lang_Class::as_klassOop(mirror);
+ oop result;
+
+ if (k->klass_part()->oop_is_typeArray()) {
+ // typeArray
+ result = typeArrayKlass::cast(k)->allocate(length, CHECK_NULL);
+ } else if (k->klass_part()->oop_is_objArray()) {
+ // objArray
+ objArrayKlassHandle oak(THREAD, k);
+ oak->initialize(CHECK_NULL); // make sure class is initialized (matches Classic VM behavior)
+ result = oak->allocate(length, CHECK_NULL);
+ } else {
+ THROW_0(vmSymbols::java_lang_InvalidClassException());
+ }
+ return JNIHandles::make_local(env, result);
+JVM_END
+
+
+// Return the first non-null class loader up the execution stack, or null
+// if only code from the null class loader is on the stack.
+
+JVM_ENTRY(jobject, JVM_LatestUserDefinedLoader(JNIEnv *env))
+ for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
+ // UseNewReflection
+ vfst.skip_reflection_related_frames(); // Only needed for 1.4 reflection
+ klassOop holder = vfst.method()->method_holder();
+ oop loader = instanceKlass::cast(holder)->class_loader();
+ if (loader != NULL) {
+ return JNIHandles::make_local(env, loader);
+ }
+ }
+ return NULL;
+JVM_END
+
+
+// Load a class relative to the most recent class on the stack with a non-null
+// classloader.
+// This function has been deprecated and should not be considered part of the
+// specified JVM interface.
+
+JVM_ENTRY(jclass, JVM_LoadClass0(JNIEnv *env, jobject receiver,
+ jclass currClass, jstring currClassName))
+ JVMWrapper("JVM_LoadClass0");
+ // Receiver is not used
+ ResourceMark rm(THREAD);
+
+ // Class name argument is not guaranteed to be in internal format
+ Handle classname (THREAD, JNIHandles::resolve_non_null(currClassName));
+ Handle string = java_lang_String::internalize_classname(classname, CHECK_NULL);
+
+ const char* str = java_lang_String::as_utf8_string(string());
+
+ if (str == NULL || (int)strlen(str) > symbolOopDesc::max_length()) {
+ // It's impossible to create this class; the name cannot fit
+ // into the constant pool.
+ THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), str);
+ }
+
+ symbolHandle name = oopFactory::new_symbol_handle(str, CHECK_NULL);
+ Handle curr_klass (THREAD, JNIHandles::resolve(currClass));
+ // Find the most recent class on the stack with a non-null classloader
+ oop loader = NULL;
+ oop protection_domain = NULL;
+ if (curr_klass.is_null()) {
+ for (vframeStream vfst(thread);
+ !vfst.at_end() && loader == NULL;
+ vfst.next()) {
+ if (!vfst.method()->is_native()) {
+ klassOop holder = vfst.method()->method_holder();
+ loader = instanceKlass::cast(holder)->class_loader();
+ protection_domain = instanceKlass::cast(holder)->protection_domain();
+ }
+ }
+ } else {
+ klassOop curr_klass_oop = java_lang_Class::as_klassOop(curr_klass());
+ loader = instanceKlass::cast(curr_klass_oop)->class_loader();
+ protection_domain = instanceKlass::cast(curr_klass_oop)->protection_domain();
+ }
+ Handle h_loader(THREAD, loader);
+ Handle h_prot (THREAD, protection_domain);
+ return find_class_from_class_loader(env, name, true, h_loader, h_prot,
+ false, thread);
+JVM_END
+
+
+// Array ///////////////////////////////////////////////////////////////////////////////////////////
+
+
+// resolve array handle and check arguments
+static inline arrayOop check_array(JNIEnv *env, jobject arr, bool type_array_only, TRAPS) {
+ if (arr == NULL) {
+ THROW_0(vmSymbols::java_lang_NullPointerException());
+ }
+ oop a = JNIHandles::resolve_non_null(arr);
+ if (!a->is_javaArray() || (type_array_only && !a->is_typeArray())) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Argument is not an array");
+ }
+ return arrayOop(a);
+}
+
+
+JVM_ENTRY(jint, JVM_GetArrayLength(JNIEnv *env, jobject arr))
+ JVMWrapper("JVM_GetArrayLength");
+ arrayOop a = check_array(env, arr, false, CHECK_0);
+ return a->length();
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index))
+ JVMWrapper("JVM_Array_Get");
+ JvmtiVMObjectAllocEventCollector oam;
+ arrayOop a = check_array(env, arr, false, CHECK_NULL);
+ jvalue value;
+ BasicType type = Reflection::array_get(&value, a, index, CHECK_NULL);
+ oop box = Reflection::box(&value, type, CHECK_NULL);
+ return JNIHandles::make_local(env, box);
+JVM_END
+
+
+JVM_ENTRY(jvalue, JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode))
+ JVMWrapper("JVM_GetPrimitiveArrayElement");
+ jvalue value;
+ value.i = 0; // to initialize value before getting used in CHECK
+ arrayOop a = check_array(env, arr, true, CHECK_(value));
+ assert(a->is_typeArray(), "just checking");
+ BasicType type = Reflection::array_get(&value, a, index, CHECK_(value));
+ BasicType wide_type = (BasicType) wCode;
+ if (type != wide_type) {
+ Reflection::widen(&value, type, wide_type, CHECK_(value));
+ }
+ return value;
+JVM_END
+
+
+JVM_ENTRY(void, JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val))
+ JVMWrapper("JVM_SetArrayElement");
+ arrayOop a = check_array(env, arr, false, CHECK);
+ oop box = JNIHandles::resolve(val);
+ jvalue value;
+ value.i = 0; // to initialize value before getting used in CHECK
+ BasicType value_type;
+ if (a->is_objArray()) {
+ // Make sure we do no unbox e.g. java/lang/Integer instances when storing into an object array
+ value_type = Reflection::unbox_for_regular_object(box, &value);
+ } else {
+ value_type = Reflection::unbox_for_primitive(box, &value, CHECK);
+ }
+ Reflection::array_set(&value, a, index, value_type, CHECK);
+JVM_END
+
+
+JVM_ENTRY(void, JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, unsigned char vCode))
+ JVMWrapper("JVM_SetPrimitiveArrayElement");
+ arrayOop a = check_array(env, arr, true, CHECK);
+ assert(a->is_typeArray(), "just checking");
+ BasicType value_type = (BasicType) vCode;
+ Reflection::array_set(&v, a, index, value_type, CHECK);
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_NewArray(JNIEnv *env, jclass eltClass, jint length))
+ JVMWrapper("JVM_NewArray");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop element_mirror = JNIHandles::resolve(eltClass);
+ oop result = Reflection::reflect_new_array(element_mirror, length, CHECK_NULL);
+ return JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim))
+ JVMWrapper("JVM_NewMultiArray");
+ JvmtiVMObjectAllocEventCollector oam;
+ arrayOop dim_array = check_array(env, dim, true, CHECK_NULL);
+ oop element_mirror = JNIHandles::resolve(eltClass);
+ assert(dim_array->is_typeArray(), "just checking");
+ oop result = Reflection::reflect_new_multi_array(element_mirror, typeArrayOop(dim_array), CHECK_NULL);
+ return JNIHandles::make_local(env, result);
+JVM_END
+
+
+// Networking library support ////////////////////////////////////////////////////////////////////
+
+JVM_LEAF(jint, JVM_InitializeSocketLibrary())
+ JVMWrapper("JVM_InitializeSocketLibrary");
+ return hpi::initialize_socket_library();
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Socket(jint domain, jint type, jint protocol))
+ JVMWrapper("JVM_Socket");
+ return hpi::socket(domain, type, protocol);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_SocketClose(jint fd))
+ JVMWrapper2("JVM_SocketClose (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::socket_close(fd);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_SocketShutdown(jint fd, jint howto))
+ JVMWrapper2("JVM_SocketShutdown (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::socket_shutdown(fd, howto);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Recv(jint fd, char *buf, jint nBytes, jint flags))
+ JVMWrapper2("JVM_Recv (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::recv(fd, buf, nBytes, flags);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Send(jint fd, char *buf, jint nBytes, jint flags))
+ JVMWrapper2("JVM_Send (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::send(fd, buf, nBytes, flags);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Timeout(int fd, long timeout))
+ JVMWrapper2("JVM_Timeout (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::timeout(fd, timeout);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Listen(jint fd, jint count))
+ JVMWrapper2("JVM_Listen (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::listen(fd, count);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Connect(jint fd, struct sockaddr *him, jint len))
+ JVMWrapper2("JVM_Connect (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::connect(fd, him, len);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Bind(jint fd, struct sockaddr *him, jint len))
+ JVMWrapper2("JVM_Bind (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::bind(fd, him, len);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_Accept(jint fd, struct sockaddr *him, jint *len))
+ JVMWrapper2("JVM_Accept (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::accept(fd, him, (int *)len);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_RecvFrom(jint fd, char *buf, int nBytes, int flags, struct sockaddr *from, int *fromlen))
+ JVMWrapper2("JVM_RecvFrom (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::recvfrom(fd, buf, nBytes, flags, from, fromlen);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_GetSockName(jint fd, struct sockaddr *him, int *len))
+ JVMWrapper2("JVM_GetSockName (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::get_sock_name(fd, him, len);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_SendTo(jint fd, char *buf, int len, int flags, struct sockaddr *to, int tolen))
+ JVMWrapper2("JVM_SendTo (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::sendto(fd, buf, len, flags, to, tolen);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_SocketAvailable(jint fd, jint *pbytes))
+ JVMWrapper2("JVM_SocketAvailable (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::socket_available(fd, pbytes);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen))
+ JVMWrapper2("JVM_GetSockOpt (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::get_sock_opt(fd, level, optname, optval, optlen);
+JVM_END
+
+
+JVM_LEAF(jint, JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen))
+ JVMWrapper2("JVM_GetSockOpt (0x%x)", fd);
+ //%note jvm_r6
+ return hpi::set_sock_opt(fd, level, optname, optval, optlen);
+JVM_END
+
+JVM_LEAF(int, JVM_GetHostName(char* name, int namelen))
+ JVMWrapper("JVM_GetHostName");
+ return hpi::get_host_name(name, namelen);
+JVM_END
+
+#ifdef _WINDOWS
+
+JVM_LEAF(struct hostent*, JVM_GetHostByAddr(const char* name, int len, int type))
+ JVMWrapper("JVM_GetHostByAddr");
+ return hpi::get_host_by_addr(name, len, type);
+JVM_END
+
+
+JVM_LEAF(struct hostent*, JVM_GetHostByName(char* name))
+ JVMWrapper("JVM_GetHostByName");
+ return hpi::get_host_by_name(name);
+JVM_END
+
+
+JVM_LEAF(struct protoent*, JVM_GetProtoByName(char* name))
+ JVMWrapper("JVM_GetProtoByName");
+ return hpi::get_proto_by_name(name);
+JVM_END
+
+#endif
+
+// Library support ///////////////////////////////////////////////////////////////////////////
+
+JVM_ENTRY_NO_ENV(void*, JVM_LoadLibrary(const char* name))
+ //%note jvm_ct
+ JVMWrapper2("JVM_LoadLibrary (%s)", name);
+ char ebuf[1024];
+ void *load_result;
+ {
+ ThreadToNativeFromVM ttnfvm(thread);
+ load_result = hpi::dll_load(name, ebuf, sizeof ebuf);
+ }
+ if (load_result == NULL) {
+ char msg[1024];
+ jio_snprintf(msg, sizeof msg, "%s: %s", name, ebuf);
+ // Since 'ebuf' may contain a string encoded using
+ // platform encoding scheme, we need to pass
+ // Exceptions::unsafe_to_utf8 to the new_exception method
+ // as the last argument. See bug 6367357.
+ Handle h_exception =
+ Exceptions::new_exception(thread,
+ vmSymbols::java_lang_UnsatisfiedLinkError(),
+ msg, Exceptions::unsafe_to_utf8);
+
+ THROW_HANDLE_0(h_exception);
+ }
+ return load_result;
+JVM_END
+
+
+JVM_LEAF(void, JVM_UnloadLibrary(void* handle))
+ JVMWrapper("JVM_UnloadLibrary");
+ hpi::dll_unload(handle);
+JVM_END
+
+
+JVM_LEAF(void*, JVM_FindLibraryEntry(void* handle, const char* name))
+ JVMWrapper2("JVM_FindLibraryEntry (%s)", name);
+ return hpi::dll_lookup(handle, name);
+JVM_END
+
+// Floating point support ////////////////////////////////////////////////////////////////////
+
+JVM_LEAF(jboolean, JVM_IsNaN(jdouble a))
+ JVMWrapper("JVM_IsNaN");
+ return g_isnan(a);
+JVM_END
+
+
+
+// JNI version ///////////////////////////////////////////////////////////////////////////////
+
+JVM_LEAF(jboolean, JVM_IsSupportedJNIVersion(jint version))
+ JVMWrapper2("JVM_IsSupportedJNIVersion (%d)", version);
+ return Threads::is_supported_jni_version_including_1_1(version);
+JVM_END
+
+
+// String support ///////////////////////////////////////////////////////////////////////////
+
+JVM_ENTRY(jstring, JVM_InternString(JNIEnv *env, jstring str))
+ JVMWrapper("JVM_InternString");
+ JvmtiVMObjectAllocEventCollector oam;
+ if (str == NULL) return NULL;
+ oop string = JNIHandles::resolve_non_null(str);
+ oop result = StringTable::intern(string, CHECK_NULL);
+ return (jstring) JNIHandles::make_local(env, result);
+JVM_END
+
+
+// Raw monitor support //////////////////////////////////////////////////////////////////////
+
+// The lock routine below calls lock_without_safepoint_check in order to get a raw lock
+// without interfering with the safepoint mechanism. The routines are not JVM_LEAF because
+// they might be called by non-java threads. The JVM_LEAF installs a NoHandleMark check
+// that only works with java threads.
+
+
+JNIEXPORT void* JNICALL JVM_RawMonitorCreate(void) {
+ VM_Exit::block_if_vm_exited();
+ JVMWrapper("JVM_RawMonitorCreate");
+ return new Mutex(Mutex::native, "JVM_RawMonitorCreate");
+}
+
+
+JNIEXPORT void JNICALL JVM_RawMonitorDestroy(void *mon) {
+ VM_Exit::block_if_vm_exited();
+ JVMWrapper("JVM_RawMonitorDestroy");
+ delete ((Mutex*) mon);
+}
+
+
+JNIEXPORT jint JNICALL JVM_RawMonitorEnter(void *mon) {
+ VM_Exit::block_if_vm_exited();
+ JVMWrapper("JVM_RawMonitorEnter");
+ ((Mutex*) mon)->jvm_raw_lock();
+ return 0;
+}
+
+
+JNIEXPORT void JNICALL JVM_RawMonitorExit(void *mon) {
+ VM_Exit::block_if_vm_exited();
+ JVMWrapper("JVM_RawMonitorExit");
+ ((Mutex*) mon)->jvm_raw_unlock();
+}
+
+
+// Support for Serialization
+
+typedef jfloat (JNICALL *IntBitsToFloatFn )(JNIEnv* env, jclass cb, jint value);
+typedef jdouble (JNICALL *LongBitsToDoubleFn)(JNIEnv* env, jclass cb, jlong value);
+typedef jint (JNICALL *FloatToIntBitsFn )(JNIEnv* env, jclass cb, jfloat value);
+typedef jlong (JNICALL *DoubleToLongBitsFn)(JNIEnv* env, jclass cb, jdouble value);
+
+static IntBitsToFloatFn int_bits_to_float_fn = NULL;
+static LongBitsToDoubleFn long_bits_to_double_fn = NULL;
+static FloatToIntBitsFn float_to_int_bits_fn = NULL;
+static DoubleToLongBitsFn double_to_long_bits_fn = NULL;
+
+
+void initialize_converter_functions() {
+ if (JDK_Version::is_gte_jdk14x_version()) {
+ // These functions only exist for compatibility with 1.3.1 and earlier
+ return;
+ }
+
+ // called from universe_post_init()
+ assert(
+ int_bits_to_float_fn == NULL &&
+ long_bits_to_double_fn == NULL &&
+ float_to_int_bits_fn == NULL &&
+ double_to_long_bits_fn == NULL ,
+ "initialization done twice"
+ );
+ // initialize
+ int_bits_to_float_fn = CAST_TO_FN_PTR(IntBitsToFloatFn , NativeLookup::base_library_lookup("java/lang/Float" , "intBitsToFloat" , "(I)F"));
+ long_bits_to_double_fn = CAST_TO_FN_PTR(LongBitsToDoubleFn, NativeLookup::base_library_lookup("java/lang/Double", "longBitsToDouble", "(J)D"));
+ float_to_int_bits_fn = CAST_TO_FN_PTR(FloatToIntBitsFn , NativeLookup::base_library_lookup("java/lang/Float" , "floatToIntBits" , "(F)I"));
+ double_to_long_bits_fn = CAST_TO_FN_PTR(DoubleToLongBitsFn, NativeLookup::base_library_lookup("java/lang/Double", "doubleToLongBits", "(D)J"));
+ // verify
+ assert(
+ int_bits_to_float_fn != NULL &&
+ long_bits_to_double_fn != NULL &&
+ float_to_int_bits_fn != NULL &&
+ double_to_long_bits_fn != NULL ,
+ "initialization failed"
+ );
+}
+
+
+// Serialization
+JVM_ENTRY(void, JVM_SetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
+ jlongArray fieldIDs, jcharArray typecodes, jbyteArray data))
+ assert(!JDK_Version::is_gte_jdk14x_version(), "should only be used in 1.3.1 and earlier");
+
+ typeArrayOop tcodes = typeArrayOop(JNIHandles::resolve(typecodes));
+ typeArrayOop dbuf = typeArrayOop(JNIHandles::resolve(data));
+ typeArrayOop fids = typeArrayOop(JNIHandles::resolve(fieldIDs));
+ oop o = JNIHandles::resolve(obj);
+
+ if (o == NULL || fids == NULL || dbuf == NULL || tcodes == NULL) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ }
+
+ jsize nfids = fids->length();
+ if (nfids == 0) return;
+
+ if (tcodes->length() < nfids) {
+ THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
+ }
+
+ jsize off = 0;
+ /* loop through fields, setting values */
+ for (jsize i = 0; i < nfids; i++) {
+ jfieldID fid = (jfieldID)(intptr_t) fids->long_at(i);
+ int field_offset;
+ if (fid != NULL) {
+ // NULL is a legal value for fid, but retrieving the field offset
+ // trigger assertion in that case
+ field_offset = jfieldIDWorkaround::from_instance_jfieldID(o->klass(), fid);
+ }
+
+ switch (tcodes->char_at(i)) {
+ case 'Z':
+ if (fid != NULL) {
+ jboolean val = (dbuf->byte_at(off) != 0) ? JNI_TRUE : JNI_FALSE;
+ o->bool_field_put(field_offset, val);
+ }
+ off++;
+ break;
+
+ case 'B':
+ if (fid != NULL) {
+ o->byte_field_put(field_offset, dbuf->byte_at(off));
+ }
+ off++;
+ break;
+
+ case 'C':
+ if (fid != NULL) {
+ jchar val = ((dbuf->byte_at(off + 0) & 0xFF) << 8)
+ + ((dbuf->byte_at(off + 1) & 0xFF) << 0);
+ o->char_field_put(field_offset, val);
+ }
+ off += 2;
+ break;
+
+ case 'S':
+ if (fid != NULL) {
+ jshort val = ((dbuf->byte_at(off + 0) & 0xFF) << 8)
+ + ((dbuf->byte_at(off + 1) & 0xFF) << 0);
+ o->short_field_put(field_offset, val);
+ }
+ off += 2;
+ break;
+
+ case 'I':
+ if (fid != NULL) {
+ jint ival = ((dbuf->byte_at(off + 0) & 0xFF) << 24)
+ + ((dbuf->byte_at(off + 1) & 0xFF) << 16)
+ + ((dbuf->byte_at(off + 2) & 0xFF) << 8)
+ + ((dbuf->byte_at(off + 3) & 0xFF) << 0);
+ o->int_field_put(field_offset, ival);
+ }
+ off += 4;
+ break;
+
+ case 'F':
+ if (fid != NULL) {
+ jint ival = ((dbuf->byte_at(off + 0) & 0xFF) << 24)
+ + ((dbuf->byte_at(off + 1) & 0xFF) << 16)
+ + ((dbuf->byte_at(off + 2) & 0xFF) << 8)
+ + ((dbuf->byte_at(off + 3) & 0xFF) << 0);
+ jfloat fval = (*int_bits_to_float_fn)(env, NULL, ival);
+ o->float_field_put(field_offset, fval);
+ }
+ off += 4;
+ break;
+
+ case 'J':
+ if (fid != NULL) {
+ jlong lval = (((jlong) dbuf->byte_at(off + 0) & 0xFF) << 56)
+ + (((jlong) dbuf->byte_at(off + 1) & 0xFF) << 48)
+ + (((jlong) dbuf->byte_at(off + 2) & 0xFF) << 40)
+ + (((jlong) dbuf->byte_at(off + 3) & 0xFF) << 32)
+ + (((jlong) dbuf->byte_at(off + 4) & 0xFF) << 24)
+ + (((jlong) dbuf->byte_at(off + 5) & 0xFF) << 16)
+ + (((jlong) dbuf->byte_at(off + 6) & 0xFF) << 8)
+ + (((jlong) dbuf->byte_at(off + 7) & 0xFF) << 0);
+ o->long_field_put(field_offset, lval);
+ }
+ off += 8;
+ break;
+
+ case 'D':
+ if (fid != NULL) {
+ jlong lval = (((jlong) dbuf->byte_at(off + 0) & 0xFF) << 56)
+ + (((jlong) dbuf->byte_at(off + 1) & 0xFF) << 48)
+ + (((jlong) dbuf->byte_at(off + 2) & 0xFF) << 40)
+ + (((jlong) dbuf->byte_at(off + 3) & 0xFF) << 32)
+ + (((jlong) dbuf->byte_at(off + 4) & 0xFF) << 24)
+ + (((jlong) dbuf->byte_at(off + 5) & 0xFF) << 16)
+ + (((jlong) dbuf->byte_at(off + 6) & 0xFF) << 8)
+ + (((jlong) dbuf->byte_at(off + 7) & 0xFF) << 0);
+ jdouble dval = (*long_bits_to_double_fn)(env, NULL, lval);
+ o->double_field_put(field_offset, dval);
+ }
+ off += 8;
+ break;
+
+ default:
+ // Illegal typecode
+ THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "illegal typecode");
+ }
+ }
+JVM_END
+
+
+JVM_ENTRY(void, JVM_GetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
+ jlongArray fieldIDs, jcharArray typecodes, jbyteArray data))
+ assert(!JDK_Version::is_gte_jdk14x_version(), "should only be used in 1.3.1 and earlier");
+
+ typeArrayOop tcodes = typeArrayOop(JNIHandles::resolve(typecodes));
+ typeArrayOop dbuf = typeArrayOop(JNIHandles::resolve(data));
+ typeArrayOop fids = typeArrayOop(JNIHandles::resolve(fieldIDs));
+ oop o = JNIHandles::resolve(obj);
+
+ if (o == NULL || fids == NULL || dbuf == NULL || tcodes == NULL) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ }
+
+ jsize nfids = fids->length();
+ if (nfids == 0) return;
+
+ if (tcodes->length() < nfids) {
+ THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
+ }
+
+ /* loop through fields, fetching values */
+ jsize off = 0;
+ for (jsize i = 0; i < nfids; i++) {
+ jfieldID fid = (jfieldID)(intptr_t) fids->long_at(i);
+ if (fid == NULL) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ }
+ int field_offset = jfieldIDWorkaround::from_instance_jfieldID(o->klass(), fid);
+
+ switch (tcodes->char_at(i)) {
+ case 'Z':
+ {
+ jboolean val = o->bool_field(field_offset);
+ dbuf->byte_at_put(off++, (val != 0) ? 1 : 0);
+ }
+ break;
+
+ case 'B':
+ dbuf->byte_at_put(off++, o->byte_field(field_offset));
+ break;
+
+ case 'C':
+ {
+ jchar val = o->char_field(field_offset);
+ dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
+ }
+ break;
+
+ case 'S':
+ {
+ jshort val = o->short_field(field_offset);
+ dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
+ }
+ break;
+
+ case 'I':
+ {
+ jint val = o->int_field(field_offset);
+ dbuf->byte_at_put(off++, (val >> 24) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 16) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
+ }
+ break;
+
+ case 'F':
+ {
+ jfloat fval = o->float_field(field_offset);
+ jint ival = (*float_to_int_bits_fn)(env, NULL, fval);
+ dbuf->byte_at_put(off++, (ival >> 24) & 0xFF);
+ dbuf->byte_at_put(off++, (ival >> 16) & 0xFF);
+ dbuf->byte_at_put(off++, (ival >> 8) & 0xFF);
+ dbuf->byte_at_put(off++, (ival >> 0) & 0xFF);
+ }
+ break;
+
+ case 'J':
+ {
+ jlong val = o->long_field(field_offset);
+ dbuf->byte_at_put(off++, (val >> 56) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 48) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 40) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 32) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 24) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 16) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
+ dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
+ }
+ break;
+
+ case 'D':
+ {
+ jdouble dval = o->double_field(field_offset);
+ jlong lval = (*double_to_long_bits_fn)(env, NULL, dval);
+ dbuf->byte_at_put(off++, (lval >> 56) & 0xFF);
+ dbuf->byte_at_put(off++, (lval >> 48) & 0xFF);
+ dbuf->byte_at_put(off++, (lval >> 40) & 0xFF);
+ dbuf->byte_at_put(off++, (lval >> 32) & 0xFF);
+ dbuf->byte_at_put(off++, (lval >> 24) & 0xFF);
+ dbuf->byte_at_put(off++, (lval >> 16) & 0xFF);
+ dbuf->byte_at_put(off++, (lval >> 8) & 0xFF);
+ dbuf->byte_at_put(off++, (lval >> 0) & 0xFF);
+ }
+ break;
+
+ default:
+ // Illegal typecode
+ THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "illegal typecode");
+ }
+ }
+JVM_END
+
+
+// Shared JNI/JVM entry points //////////////////////////////////////////////////////////////
+
+jclass find_class_from_class_loader(JNIEnv* env, symbolHandle name, jboolean init, Handle loader, Handle protection_domain, jboolean throwError, TRAPS) {
+ // Security Note:
+ // The Java level wrapper will perform the necessary security check allowing
+ // us to pass the NULL as the initiating class loader.
+ klassOop klass = SystemDictionary::resolve_or_fail(name, loader, protection_domain, throwError != 0, CHECK_NULL);
+ KlassHandle klass_handle(THREAD, klass);
+ // Check if we should initialize the class
+ if (init && klass_handle->oop_is_instance()) {
+ klass_handle->initialize(CHECK_NULL);
+ }
+ return (jclass) JNIHandles::make_local(env, klass_handle->java_mirror());
+}
+
+
+// Internal SQE debugging support ///////////////////////////////////////////////////////////
+
+#ifndef PRODUCT
+
+extern "C" {
+ JNIEXPORT jboolean JNICALL JVM_AccessVMBooleanFlag(const char* name, jboolean* value, jboolean is_get);
+ JNIEXPORT jboolean JNICALL JVM_AccessVMIntFlag(const char* name, jint* value, jboolean is_get);
+ JNIEXPORT void JNICALL JVM_VMBreakPoint(JNIEnv *env, jobject obj);
+}
+
+JVM_LEAF(jboolean, JVM_AccessVMBooleanFlag(const char* name, jboolean* value, jboolean is_get))
+ JVMWrapper("JVM_AccessBoolVMFlag");
+ return is_get ? CommandLineFlags::boolAt((char*) name, (bool*) value) : CommandLineFlags::boolAtPut((char*) name, (bool*) value, INTERNAL);
+JVM_END
+
+JVM_LEAF(jboolean, JVM_AccessVMIntFlag(const char* name, jint* value, jboolean is_get))
+ JVMWrapper("JVM_AccessVMIntFlag");
+ intx v;
+ jboolean result = is_get ? CommandLineFlags::intxAt((char*) name, &v) : CommandLineFlags::intxAtPut((char*) name, &v, INTERNAL);
+ *value = (jint)v;
+ return result;
+JVM_END
+
+
+JVM_ENTRY(void, JVM_VMBreakPoint(JNIEnv *env, jobject obj))
+ JVMWrapper("JVM_VMBreakPoint");
+ oop the_obj = JNIHandles::resolve(obj);
+ BREAKPOINT;
+JVM_END
+
+
+#endif
+
+
+//---------------------------------------------------------------------------
+//
+// Support for old native code-based reflection (pre-JDK 1.4)
+// Disabled by default in the product build.
+//
+// See reflection.hpp for information on SUPPORT_OLD_REFLECTION
+//
+//---------------------------------------------------------------------------
+
+#ifdef SUPPORT_OLD_REFLECTION
+
+JVM_ENTRY(jobjectArray, JVM_GetClassFields(JNIEnv *env, jclass cls, jint which))
+ JVMWrapper("JVM_GetClassFields");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ objArrayOop result = Reflection::reflect_fields(mirror, which, CHECK_NULL);
+ return (jobjectArray) JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jobjectArray, JVM_GetClassMethods(JNIEnv *env, jclass cls, jint which))
+ JVMWrapper("JVM_GetClassMethods");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ objArrayOop result = Reflection::reflect_methods(mirror, which, CHECK_NULL);
+ //%note jvm_r4
+ return (jobjectArray) JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jobjectArray, JVM_GetClassConstructors(JNIEnv *env, jclass cls, jint which))
+ JVMWrapper("JVM_GetClassConstructors");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ objArrayOop result = Reflection::reflect_constructors(mirror, which, CHECK_NULL);
+ //%note jvm_r4
+ return (jobjectArray) JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_GetClassField(JNIEnv *env, jclass cls, jstring name, jint which))
+ JVMWrapper("JVM_GetClassField");
+ JvmtiVMObjectAllocEventCollector oam;
+ if (name == NULL) return NULL;
+ Handle str (THREAD, JNIHandles::resolve_non_null(name));
+
+ const char* cstr = java_lang_String::as_utf8_string(str());
+ symbolHandle field_name =
+ symbolHandle(THREAD, SymbolTable::probe(cstr, (int)strlen(cstr)));
+ if (field_name.is_null()) {
+ THROW_0(vmSymbols::java_lang_NoSuchFieldException());
+ }
+
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ oop result = Reflection::reflect_field(mirror, field_name(), which, CHECK_NULL);
+ if (result == NULL) {
+ THROW_0(vmSymbols::java_lang_NoSuchFieldException());
+ }
+ return JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_GetClassMethod(JNIEnv *env, jclass cls, jstring name, jobjectArray types, jint which))
+ JVMWrapper("JVM_GetClassMethod");
+ JvmtiVMObjectAllocEventCollector oam;
+ if (name == NULL) {
+ THROW_0(vmSymbols::java_lang_NullPointerException());
+ }
+ Handle str (THREAD, JNIHandles::resolve_non_null(name));
+
+ const char* cstr = java_lang_String::as_utf8_string(str());
+ symbolHandle method_name =
+ symbolHandle(THREAD, SymbolTable::probe(cstr, (int)strlen(cstr)));
+ if (method_name.is_null()) {
+ THROW_0(vmSymbols::java_lang_NoSuchMethodException());
+ }
+
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ objArrayHandle tarray (THREAD, objArrayOop(JNIHandles::resolve(types)));
+ oop result = Reflection::reflect_method(mirror, method_name, tarray,
+ which, CHECK_NULL);
+ if (result == NULL) {
+ THROW_0(vmSymbols::java_lang_NoSuchMethodException());
+ }
+ return JNIHandles::make_local(env, result);
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_GetClassConstructor(JNIEnv *env, jclass cls, jobjectArray types, jint which))
+ JVMWrapper("JVM_GetClassConstructor");
+ JvmtiVMObjectAllocEventCollector oam;
+ oop mirror = JNIHandles::resolve_non_null(cls);
+ objArrayHandle tarray (THREAD, objArrayOop(JNIHandles::resolve(types)));
+ oop result = Reflection::reflect_constructor(mirror, tarray, which, CHECK_NULL);
+ if (result == NULL) {
+ THROW_0(vmSymbols::java_lang_NoSuchMethodException());
+ }
+ return (jobject) JNIHandles::make_local(env, result);
+JVM_END
+
+
+// Instantiation ///////////////////////////////////////////////////////////////////////////////
+
+JVM_ENTRY(jobject, JVM_NewInstance(JNIEnv *env, jclass cls))
+ JVMWrapper("JVM_NewInstance");
+ Handle mirror(THREAD, JNIHandles::resolve_non_null(cls));
+
+ methodOop resolved_constructor = java_lang_Class::resolved_constructor(mirror());
+ if (resolved_constructor == NULL) {
+ klassOop k = java_lang_Class::as_klassOop(mirror());
+ // The java.lang.Class object caches a resolved constructor if all the checks
+ // below were done successfully and a constructor was found.
+
+ // Do class based checks
+ if (java_lang_Class::is_primitive(mirror())) {
+ const char* msg = "";
+ if (mirror == Universe::bool_mirror()) msg = "java/lang/Boolean";
+ else if (mirror == Universe::char_mirror()) msg = "java/lang/Character";
+ else if (mirror == Universe::float_mirror()) msg = "java/lang/Float";
+ else if (mirror == Universe::double_mirror()) msg = "java/lang/Double";
+ else if (mirror == Universe::byte_mirror()) msg = "java/lang/Byte";
+ else if (mirror == Universe::short_mirror()) msg = "java/lang/Short";
+ else if (mirror == Universe::int_mirror()) msg = "java/lang/Integer";
+ else if (mirror == Universe::long_mirror()) msg = "java/lang/Long";
+ THROW_MSG_0(vmSymbols::java_lang_NullPointerException(), msg);
+ }
+
+ // Check whether we are allowed to instantiate this class
+ Klass::cast(k)->check_valid_for_instantiation(false, CHECK_NULL); // Array classes get caught here
+ instanceKlassHandle klass(THREAD, k);
+ // Make sure class is initialized (also so all methods are rewritten)
+ klass->initialize(CHECK_NULL);
+
+ // Lookup default constructor
+ resolved_constructor = klass->find_method(vmSymbols::object_initializer_name(), vmSymbols::void_method_signature());
+ if (resolved_constructor == NULL) {
+ ResourceMark rm(THREAD);
+ THROW_MSG_0(vmSymbols::java_lang_InstantiationException(), klass->external_name());
+ }
+
+ // Cache result in java.lang.Class object. Does not have to be MT safe.
+ java_lang_Class::set_resolved_constructor(mirror(), resolved_constructor);
+ }
+
+ assert(resolved_constructor != NULL, "sanity check");
+ methodHandle constructor = methodHandle(THREAD, resolved_constructor);
+
+ // We have an initialized instanceKlass with a default constructor
+ instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls)));
+ assert(klass->is_initialized() || klass->is_being_initialized(), "sanity check");
+
+ // Do security check
+ klassOop caller_klass = NULL;
+ if (UsePrivilegedStack) {
+ caller_klass = thread->security_get_caller_class(2);
+
+ if (!Reflection::verify_class_access(caller_klass, klass(), false) ||
+ !Reflection::verify_field_access(caller_klass,
+ klass(),
+ klass(),
+ constructor->access_flags(),
+ false,
+ true)) {
+ ResourceMark rm(THREAD);
+ THROW_MSG_0(vmSymbols::java_lang_IllegalAccessException(), klass->external_name());
+ }
+ }
+
+ // Allocate object and call constructor
+ Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
+ JavaCalls::call_default_constructor(thread, constructor, receiver, CHECK_NULL);
+
+ jobject res = JNIHandles::make_local(env, receiver());
+ if (JvmtiExport::should_post_vm_object_alloc()) {
+ JvmtiExport::post_vm_object_alloc(JavaThread::current(), receiver());
+ }
+ return res;
+JVM_END
+
+
+// Field ////////////////////////////////////////////////////////////////////////////////////////////
+
+JVM_ENTRY(jobject, JVM_GetField(JNIEnv *env, jobject field, jobject obj))
+ JVMWrapper("JVM_GetField");
+ JvmtiVMObjectAllocEventCollector oam;
+ Handle field_mirror(thread, JNIHandles::resolve(field));
+ Handle receiver (thread, JNIHandles::resolve(obj));
+ fieldDescriptor fd;
+ Reflection::resolve_field(field_mirror, receiver, &fd, false, CHECK_NULL);
+ jvalue value;
+ BasicType type = Reflection::field_get(&value, &fd, receiver);
+ oop box = Reflection::box(&value, type, CHECK_NULL);
+ return JNIHandles::make_local(env, box);
+JVM_END
+
+
+JVM_ENTRY(jvalue, JVM_GetPrimitiveField(JNIEnv *env, jobject field, jobject obj, unsigned char wCode))
+ JVMWrapper("JVM_GetPrimitiveField");
+ Handle field_mirror(thread, JNIHandles::resolve(field));
+ Handle receiver (thread, JNIHandles::resolve(obj));
+ fieldDescriptor fd;
+ jvalue value;
+ value.j = 0;
+ Reflection::resolve_field(field_mirror, receiver, &fd, false, CHECK_(value));
+ BasicType type = Reflection::field_get(&value, &fd, receiver);
+ BasicType wide_type = (BasicType) wCode;
+ if (type != wide_type) {
+ Reflection::widen(&value, type, wide_type, CHECK_(value));
+ }
+ return value;
+JVM_END // should really be JVM_END, but that doesn't work for union types!
+
+
+JVM_ENTRY(void, JVM_SetField(JNIEnv *env, jobject field, jobject obj, jobject val))
+ JVMWrapper("JVM_SetField");
+ Handle field_mirror(thread, JNIHandles::resolve(field));
+ Handle receiver (thread, JNIHandles::resolve(obj));
+ oop box = JNIHandles::resolve(val);
+ fieldDescriptor fd;
+ Reflection::resolve_field(field_mirror, receiver, &fd, true, CHECK);
+ BasicType field_type = fd.field_type();
+ jvalue value;
+ BasicType value_type;
+ if (field_type == T_OBJECT || field_type == T_ARRAY) {
+ // Make sure we do no unbox e.g. java/lang/Integer instances when storing into an object array
+ value_type = Reflection::unbox_for_regular_object(box, &value);
+ Reflection::field_set(&value, &fd, receiver, field_type, CHECK);
+ } else {
+ value_type = Reflection::unbox_for_primitive(box, &value, CHECK);
+ Reflection::field_set(&value, &fd, receiver, value_type, CHECK);
+ }
+JVM_END
+
+
+JVM_ENTRY(void, JVM_SetPrimitiveField(JNIEnv *env, jobject field, jobject obj, jvalue v, unsigned char vCode))
+ JVMWrapper("JVM_SetPrimitiveField");
+ Handle field_mirror(thread, JNIHandles::resolve(field));
+ Handle receiver (thread, JNIHandles::resolve(obj));
+ fieldDescriptor fd;
+ Reflection::resolve_field(field_mirror, receiver, &fd, true, CHECK);
+ BasicType value_type = (BasicType) vCode;
+ Reflection::field_set(&v, &fd, receiver, value_type, CHECK);
+JVM_END
+
+
+// Method ///////////////////////////////////////////////////////////////////////////////////////////
+
+JVM_ENTRY(jobject, JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0))
+ JVMWrapper("JVM_InvokeMethod");
+ Handle method_handle;
+ if (thread->stack_available((address) &method_handle) >= JVMInvokeMethodSlack) {
+ method_handle = Handle(THREAD, JNIHandles::resolve(method));
+ Handle receiver(THREAD, JNIHandles::resolve(obj));
+ objArrayHandle args(THREAD, objArrayOop(JNIHandles::resolve(args0)));
+ oop result = Reflection::invoke_method(method_handle(), receiver, args, CHECK_NULL);
+ jobject res = JNIHandles::make_local(env, result);
+ if (JvmtiExport::should_post_vm_object_alloc()) {
+ oop ret_type = java_lang_reflect_Method::return_type(method_handle());
+ assert(ret_type != NULL, "sanity check: ret_type oop must not be NULL!");
+ if (java_lang_Class::is_primitive(ret_type)) {
+ // Only for primitive type vm allocates memory for java object.
+ // See box() method.
+ JvmtiExport::post_vm_object_alloc(JavaThread::current(), result);
+ }
+ }
+ return res;
+ } else {
+ THROW_0(vmSymbols::java_lang_StackOverflowError());
+ }
+JVM_END
+
+
+JVM_ENTRY(jobject, JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0))
+ JVMWrapper("JVM_NewInstanceFromConstructor");
+ oop constructor_mirror = JNIHandles::resolve(c);
+ objArrayHandle args(THREAD, objArrayOop(JNIHandles::resolve(args0)));
+ oop result = Reflection::invoke_constructor(constructor_mirror, args, CHECK_NULL);
+ jobject res = JNIHandles::make_local(env, result);
+ if (JvmtiExport::should_post_vm_object_alloc()) {
+ JvmtiExport::post_vm_object_alloc(JavaThread::current(), result);
+ }
+ return res;
+JVM_END
+
+#endif /* SUPPORT_OLD_REFLECTION */
+
+// Atomic ///////////////////////////////////////////////////////////////////////////////////////////
+
+JVM_LEAF(jboolean, JVM_SupportsCX8())
+ JVMWrapper("JVM_SupportsCX8");
+ return VM_Version::supports_cx8();
+JVM_END
+
+
+JVM_ENTRY(jboolean, JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fid, jlong oldVal, jlong newVal))
+ JVMWrapper("JVM_CX8Field");
+ jlong res;
+ oop o = JNIHandles::resolve(obj);
+ intptr_t fldOffs = jfieldIDWorkaround::from_instance_jfieldID(o->klass(), fid);
+ volatile jlong* addr = (volatile jlong*)((address)o + fldOffs);
+
+ assert(VM_Version::supports_cx8(), "cx8 not supported");
+ res = Atomic::cmpxchg(newVal, addr, oldVal);
+
+ return res == oldVal;
+JVM_END
+
+// Returns an array of all live Thread objects (VM internal JavaThreads,
+// jvmti agent threads, and JNI attaching threads are skipped)
+// See CR 6404306 regarding JNI attaching threads
+JVM_ENTRY(jobjectArray, JVM_GetAllThreads(JNIEnv *env, jclass dummy))
+ ResourceMark rm(THREAD);
+ ThreadsListEnumerator tle(THREAD, false, false);
+ JvmtiVMObjectAllocEventCollector oam;
+
+ int num_threads = tle.num_threads();
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::thread_klass(), num_threads, CHECK_NULL);
+ objArrayHandle threads_ah(THREAD, r);
+
+ for (int i = 0; i < num_threads; i++) {
+ Handle h = tle.get_threadObj(i);
+ threads_ah->obj_at_put(i, h());
+ }
+
+ return (jobjectArray) JNIHandles::make_local(env, threads_ah());
+JVM_END
+
+
+// Support for java.lang.Thread.getStackTrace() and getAllStackTraces() methods
+// Return StackTraceElement[][], each element is the stack trace of a thread in
+// the corresponding entry in the given threads array
+JVM_ENTRY(jobjectArray, JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads))
+ JVMWrapper("JVM_DumpThreads");
+ JvmtiVMObjectAllocEventCollector oam;
+
+ // Check if threads is null
+ if (threads == NULL) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), 0);
+ }
+
+ objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(threads));
+ objArrayHandle ah(THREAD, a);
+ int num_threads = ah->length();
+ // check if threads is non-empty array
+ if (num_threads == 0) {
+ THROW_(vmSymbols::java_lang_IllegalArgumentException(), 0);
+ }
+
+ // check if threads is not an array of objects of Thread class
+ klassOop k = objArrayKlass::cast(ah->klass())->element_klass();
+ if (k != SystemDictionary::thread_klass()) {
+ THROW_(vmSymbols::java_lang_IllegalArgumentException(), 0);
+ }
+
+ ResourceMark rm(THREAD);
+
+ GrowableArray<instanceHandle>* thread_handle_array = new GrowableArray<instanceHandle>(num_threads);
+ for (int i = 0; i < num_threads; i++) {
+ oop thread_obj = ah->obj_at(i);
+ instanceHandle h(THREAD, (instanceOop) thread_obj);
+ thread_handle_array->append(h);
+ }
+
+ Handle stacktraces = ThreadService::dump_stack_traces(thread_handle_array, num_threads, CHECK_NULL);
+ return (jobjectArray)JNIHandles::make_local(env, stacktraces());
+
+JVM_END
+
+// JVM monitoring and management support
+JVM_ENTRY_NO_ENV(void*, JVM_GetManagement(jint version))
+ return Management::get_jmm_interface(version);
+JVM_END
+
+// com.sun.tools.attach.VirtualMachine agent properties support
+//
+// Initialize the agent properties with the properties maintained in the VM
+JVM_ENTRY(jobject, JVM_InitAgentProperties(JNIEnv *env, jobject properties))
+ JVMWrapper("JVM_InitAgentProperties");
+ ResourceMark rm;
+
+ Handle props(THREAD, JNIHandles::resolve_non_null(properties));
+
+ PUTPROP(props, "sun.java.command", Arguments::java_command());
+ PUTPROP(props, "sun.jvm.flags", Arguments::jvm_flags());
+ PUTPROP(props, "sun.jvm.args", Arguments::jvm_args());
+ return properties;
+JVM_END
+
+JVM_ENTRY(jobjectArray, JVM_GetEnclosingMethodInfo(JNIEnv *env, jclass ofClass))
+{
+ JVMWrapper("JVM_GetEnclosingMethodInfo");
+ JvmtiVMObjectAllocEventCollector oam;
+
+ if (ofClass == NULL) {
+ return NULL;
+ }
+ Handle mirror(THREAD, JNIHandles::resolve_non_null(ofClass));
+ // Special handling for primitive objects
+ if (java_lang_Class::is_primitive(mirror())) {
+ return NULL;
+ }
+ klassOop k = java_lang_Class::as_klassOop(mirror());
+ if (!Klass::cast(k)->oop_is_instance()) {
+ return NULL;
+ }
+ instanceKlassHandle ik_h(THREAD, k);
+ int encl_method_class_idx = ik_h->enclosing_method_class_index();
+ if (encl_method_class_idx == 0) {
+ return NULL;
+ }
+ objArrayOop dest_o = oopFactory::new_objArray(SystemDictionary::object_klass(), 3, CHECK_NULL);
+ objArrayHandle dest(THREAD, dest_o);
+ klassOop enc_k = ik_h->constants()->klass_at(encl_method_class_idx, CHECK_NULL);
+ dest->obj_at_put(0, Klass::cast(enc_k)->java_mirror());
+ int encl_method_method_idx = ik_h->enclosing_method_method_index();
+ if (encl_method_method_idx != 0) {
+ symbolOop sym_o = ik_h->constants()->symbol_at(
+ extract_low_short_from_int(
+ ik_h->constants()->name_and_type_at(encl_method_method_idx)));
+ symbolHandle sym(THREAD, sym_o);
+ Handle str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
+ dest->obj_at_put(1, str());
+ sym_o = ik_h->constants()->symbol_at(
+ extract_high_short_from_int(
+ ik_h->constants()->name_and_type_at(encl_method_method_idx)));
+ sym = symbolHandle(THREAD, sym_o);
+ str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
+ dest->obj_at_put(2, str());
+ }
+ return (jobjectArray) JNIHandles::make_local(dest());
+}
+JVM_END
+
+JVM_ENTRY(jintArray, JVM_GetThreadStateValues(JNIEnv* env,
+ jint javaThreadState))
+{
+ // If new thread states are added in future JDK and VM versions,
+ // this should check if the JDK version is compatible with thread
+ // states supported by the VM. Return NULL if not compatible.
+ //
+ // This function must map the VM java_lang_Thread::ThreadStatus
+ // to the Java thread state that the JDK supports.
+ //
+
+ typeArrayHandle values_h;
+ switch (javaThreadState) {
+ case JAVA_THREAD_STATE_NEW : {
+ typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
+ values_h = typeArrayHandle(THREAD, r);
+ values_h->int_at_put(0, java_lang_Thread::NEW);
+ break;
+ }
+ case JAVA_THREAD_STATE_RUNNABLE : {
+ typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
+ values_h = typeArrayHandle(THREAD, r);
+ values_h->int_at_put(0, java_lang_Thread::RUNNABLE);
+ break;
+ }
+ case JAVA_THREAD_STATE_BLOCKED : {
+ typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
+ values_h = typeArrayHandle(THREAD, r);
+ values_h->int_at_put(0, java_lang_Thread::BLOCKED_ON_MONITOR_ENTER);
+ break;
+ }
+ case JAVA_THREAD_STATE_WAITING : {
+ typeArrayOop r = oopFactory::new_typeArray(T_INT, 2, CHECK_NULL);
+ values_h = typeArrayHandle(THREAD, r);
+ values_h->int_at_put(0, java_lang_Thread::IN_OBJECT_WAIT);
+ values_h->int_at_put(1, java_lang_Thread::PARKED);
+ break;
+ }
+ case JAVA_THREAD_STATE_TIMED_WAITING : {
+ typeArrayOop r = oopFactory::new_typeArray(T_INT, 3, CHECK_NULL);
+ values_h = typeArrayHandle(THREAD, r);
+ values_h->int_at_put(0, java_lang_Thread::SLEEPING);
+ values_h->int_at_put(1, java_lang_Thread::IN_OBJECT_WAIT_TIMED);
+ values_h->int_at_put(2, java_lang_Thread::PARKED_TIMED);
+ break;
+ }
+ case JAVA_THREAD_STATE_TERMINATED : {
+ typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
+ values_h = typeArrayHandle(THREAD, r);
+ values_h->int_at_put(0, java_lang_Thread::TERMINATED);
+ break;
+ }
+ default:
+ // Unknown state - probably incompatible JDK version
+ return NULL;
+ }
+
+ return (jintArray) JNIHandles::make_local(env, values_h());
+}
+JVM_END
+
+
+JVM_ENTRY(jobjectArray, JVM_GetThreadStateNames(JNIEnv* env,
+ jint javaThreadState,
+ jintArray values))
+{
+ // If new thread states are added in future JDK and VM versions,
+ // this should check if the JDK version is compatible with thread
+ // states supported by the VM. Return NULL if not compatible.
+ //
+ // This function must map the VM java_lang_Thread::ThreadStatus
+ // to the Java thread state that the JDK supports.
+ //
+
+ ResourceMark rm;
+
+ // Check if threads is null
+ if (values == NULL) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), 0);
+ }
+
+ typeArrayOop v = typeArrayOop(JNIHandles::resolve_non_null(values));
+ typeArrayHandle values_h(THREAD, v);
+
+ objArrayHandle names_h;
+ switch (javaThreadState) {
+ case JAVA_THREAD_STATE_NEW : {
+ assert(values_h->length() == 1 &&
+ values_h->int_at(0) == java_lang_Thread::NEW,
+ "Invalid threadStatus value");
+
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
+ 1, /* only 1 substate */
+ CHECK_NULL);
+ names_h = objArrayHandle(THREAD, r);
+ Handle name = java_lang_String::create_from_str("NEW", CHECK_NULL);
+ names_h->obj_at_put(0, name());
+ break;
+ }
+ case JAVA_THREAD_STATE_RUNNABLE : {
+ assert(values_h->length() == 1 &&
+ values_h->int_at(0) == java_lang_Thread::RUNNABLE,
+ "Invalid threadStatus value");
+
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
+ 1, /* only 1 substate */
+ CHECK_NULL);
+ names_h = objArrayHandle(THREAD, r);
+ Handle name = java_lang_String::create_from_str("RUNNABLE", CHECK_NULL);
+ names_h->obj_at_put(0, name());
+ break;
+ }
+ case JAVA_THREAD_STATE_BLOCKED : {
+ assert(values_h->length() == 1 &&
+ values_h->int_at(0) == java_lang_Thread::BLOCKED_ON_MONITOR_ENTER,
+ "Invalid threadStatus value");
+
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
+ 1, /* only 1 substate */
+ CHECK_NULL);
+ names_h = objArrayHandle(THREAD, r);
+ Handle name = java_lang_String::create_from_str("BLOCKED", CHECK_NULL);
+ names_h->obj_at_put(0, name());
+ break;
+ }
+ case JAVA_THREAD_STATE_WAITING : {
+ assert(values_h->length() == 2 &&
+ values_h->int_at(0) == java_lang_Thread::IN_OBJECT_WAIT &&
+ values_h->int_at(1) == java_lang_Thread::PARKED,
+ "Invalid threadStatus value");
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
+ 2, /* number of substates */
+ CHECK_NULL);
+ names_h = objArrayHandle(THREAD, r);
+ Handle name0 = java_lang_String::create_from_str("WAITING.OBJECT_WAIT",
+ CHECK_NULL);
+ Handle name1 = java_lang_String::create_from_str("WAITING.PARKED",
+ CHECK_NULL);
+ names_h->obj_at_put(0, name0());
+ names_h->obj_at_put(1, name1());
+ break;
+ }
+ case JAVA_THREAD_STATE_TIMED_WAITING : {
+ assert(values_h->length() == 3 &&
+ values_h->int_at(0) == java_lang_Thread::SLEEPING &&
+ values_h->int_at(1) == java_lang_Thread::IN_OBJECT_WAIT_TIMED &&
+ values_h->int_at(2) == java_lang_Thread::PARKED_TIMED,
+ "Invalid threadStatus value");
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
+ 3, /* number of substates */
+ CHECK_NULL);
+ names_h = objArrayHandle(THREAD, r);
+ Handle name0 = java_lang_String::create_from_str("TIMED_WAITING.SLEEPING",
+ CHECK_NULL);
+ Handle name1 = java_lang_String::create_from_str("TIMED_WAITING.OBJECT_WAIT",
+ CHECK_NULL);
+ Handle name2 = java_lang_String::create_from_str("TIMED_WAITING.PARKED",
+ CHECK_NULL);
+ names_h->obj_at_put(0, name0());
+ names_h->obj_at_put(1, name1());
+ names_h->obj_at_put(2, name2());
+ break;
+ }
+ case JAVA_THREAD_STATE_TERMINATED : {
+ assert(values_h->length() == 1 &&
+ values_h->int_at(0) == java_lang_Thread::TERMINATED,
+ "Invalid threadStatus value");
+ objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
+ 1, /* only 1 substate */
+ CHECK_NULL);
+ names_h = objArrayHandle(THREAD, r);
+ Handle name = java_lang_String::create_from_str("TERMINATED", CHECK_NULL);
+ names_h->obj_at_put(0, name());
+ break;
+ }
+ default:
+ // Unknown state - probably incompatible JDK version
+ return NULL;
+ }
+ return (jobjectArray) JNIHandles::make_local(env, names_h());
+}
+JVM_END
+
+JVM_ENTRY(void, JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size))
+{
+ memset(info, 0, sizeof(info_size));
+
+ info->jvm_version = Abstract_VM_Version::jvm_version();
+ info->update_version = 0; /* 0 in HotSpot Express VM */
+ info->special_update_version = 0; /* 0 in HotSpot Express VM */
+
+ // when we add a new capability in the jvm_version_info struct, we should also
+ // consider to expose this new capability in the sun.rt.jvmCapabilities jvmstat
+ // counter defined in runtimeService.cpp.
+ info->is_attachable = AttachListener::is_attach_supported();
+#ifdef KERNEL
+ info->is_kernel_jvm = 1; // true;
+#else // KERNEL
+ info->is_kernel_jvm = 0; // false;
+#endif // KERNEL
+}
+JVM_END