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/*
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* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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#include "incls/_precompiled.incl"
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#include "incls/_jvm.cpp.incl"
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#include <errno.h>
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/*
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NOTE about use of any ctor or function call that can trigger a safepoint/GC:
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such ctors and calls MUST NOT come between an oop declaration/init and its
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usage because if objects are move this may cause various memory stomps, bus
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errors and segfaults. Here is a cookbook for causing so called "naked oop
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failures":
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JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredFields<etc> {
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JVMWrapper("JVM_GetClassDeclaredFields");
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// Object address to be held directly in mirror & not visible to GC
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oop mirror = JNIHandles::resolve_non_null(ofClass);
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// If this ctor can hit a safepoint, moving objects around, then
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ComplexConstructor foo;
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// Boom! mirror may point to JUNK instead of the intended object
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(some dereference of mirror)
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// Here's another call that may block for GC, making mirror stale
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MutexLocker ml(some_lock);
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// And here's an initializer that can result in a stale oop
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// all in one step.
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oop o = call_that_can_throw_exception(TRAPS);
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The solution is to keep the oop declaration BELOW the ctor or function
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call that might cause a GC, do another resolve to reassign the oop, or
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consider use of a Handle instead of an oop so there is immunity from object
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motion. But note that the "QUICK" entries below do not have a handlemark
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and thus can only support use of handles passed in.
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*/
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static void trace_class_resolution_impl(klassOop to_class, TRAPS) {
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ResourceMark rm;
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int line_number = -1;
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const char * source_file = NULL;
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klassOop caller = NULL;
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JavaThread* jthread = JavaThread::current();
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if (jthread->has_last_Java_frame()) {
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vframeStream vfst(jthread);
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// scan up the stack skipping ClassLoader, AccessController and PrivilegedAction frames
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symbolHandle access_controller = oopFactory::new_symbol_handle("java/security/AccessController", CHECK);
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klassOop access_controller_klass = SystemDictionary::resolve_or_fail(access_controller, false, CHECK);
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symbolHandle privileged_action = oopFactory::new_symbol_handle("java/security/PrivilegedAction", CHECK);
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klassOop privileged_action_klass = SystemDictionary::resolve_or_fail(privileged_action, false, CHECK);
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methodOop last_caller = NULL;
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while (!vfst.at_end()) {
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methodOop m = vfst.method();
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if (!vfst.method()->method_holder()->klass_part()->is_subclass_of(SystemDictionary::classloader_klass())&&
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!vfst.method()->method_holder()->klass_part()->is_subclass_of(access_controller_klass) &&
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!vfst.method()->method_holder()->klass_part()->is_subclass_of(privileged_action_klass)) {
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break;
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}
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last_caller = m;
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vfst.next();
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}
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// if this is called from Class.forName0 and that is called from Class.forName,
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// then print the caller of Class.forName. If this is Class.loadClass, then print
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// that caller, otherwise keep quiet since this should be picked up elsewhere.
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bool found_it = false;
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if (!vfst.at_end() &&
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instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class() &&
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vfst.method()->name() == vmSymbols::forName0_name()) {
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vfst.next();
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if (!vfst.at_end() &&
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instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class() &&
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vfst.method()->name() == vmSymbols::forName_name()) {
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vfst.next();
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found_it = true;
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}
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} else if (last_caller != NULL &&
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instanceKlass::cast(last_caller->method_holder())->name() ==
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vmSymbols::java_lang_ClassLoader() &&
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(last_caller->name() == vmSymbols::loadClassInternal_name() ||
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last_caller->name() == vmSymbols::loadClass_name())) {
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found_it = true;
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}
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if (found_it && !vfst.at_end()) {
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// found the caller
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caller = vfst.method()->method_holder();
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line_number = vfst.method()->line_number_from_bci(vfst.bci());
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symbolOop s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name();
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if (s != NULL) {
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source_file = s->as_C_string();
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}
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}
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}
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if (caller != NULL) {
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if (to_class != caller) {
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const char * from = Klass::cast(caller)->external_name();
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const char * to = Klass::cast(to_class)->external_name();
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// print in a single call to reduce interleaving between threads
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if (source_file != NULL) {
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tty->print("RESOLVE %s %s %s:%d (explicit)\n", from, to, source_file, line_number);
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} else {
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tty->print("RESOLVE %s %s (explicit)\n", from, to);
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}
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}
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}
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}
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static void trace_class_resolution(klassOop to_class) {
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EXCEPTION_MARK;
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trace_class_resolution_impl(to_class, THREAD);
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if (HAS_PENDING_EXCEPTION) {
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CLEAR_PENDING_EXCEPTION;
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}
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}
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// Wrapper to trace JVM functions
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#ifdef ASSERT
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class JVMTraceWrapper : public StackObj {
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public:
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JVMTraceWrapper(const char* format, ...) {
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if (TraceJVMCalls) {
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va_list ap;
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va_start(ap, format);
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tty->print("JVM ");
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tty->vprint_cr(format, ap);
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va_end(ap);
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}
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}
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};
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Histogram* JVMHistogram;
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volatile jint JVMHistogram_lock = 0;
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class JVMHistogramElement : public HistogramElement {
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public:
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JVMHistogramElement(const char* name);
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};
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JVMHistogramElement::JVMHistogramElement(const char* elementName) {
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_name = elementName;
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uintx count = 0;
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while (Atomic::cmpxchg(1, &JVMHistogram_lock, 0) != 0) {
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while (OrderAccess::load_acquire(&JVMHistogram_lock) != 0) {
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count +=1;
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if ( (WarnOnStalledSpinLock > 0)
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&& (count % WarnOnStalledSpinLock == 0)) {
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warning("JVMHistogram_lock seems to be stalled");
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}
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}
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}
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if(JVMHistogram == NULL)
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JVMHistogram = new Histogram("JVM Call Counts",100);
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JVMHistogram->add_element(this);
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Atomic::dec(&JVMHistogram_lock);
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}
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#define JVMCountWrapper(arg) \
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static JVMHistogramElement* e = new JVMHistogramElement(arg); \
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if (e != NULL) e->increment_count(); // Due to bug in VC++, we need a NULL check here eventhough it should never happen!
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#define JVMWrapper(arg1) JVMCountWrapper(arg1); JVMTraceWrapper(arg1)
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#define JVMWrapper2(arg1, arg2) JVMCountWrapper(arg1); JVMTraceWrapper(arg1, arg2)
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#define JVMWrapper3(arg1, arg2, arg3) JVMCountWrapper(arg1); JVMTraceWrapper(arg1, arg2, arg3)
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#define JVMWrapper4(arg1, arg2, arg3, arg4) JVMCountWrapper(arg1); JVMTraceWrapper(arg1, arg2, arg3, arg4)
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#else
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#define JVMWrapper(arg1)
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#define JVMWrapper2(arg1, arg2)
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#define JVMWrapper3(arg1, arg2, arg3)
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#define JVMWrapper4(arg1, arg2, arg3, arg4)
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#endif
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// Interface version /////////////////////////////////////////////////////////////////////
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JVM_LEAF(jint, JVM_GetInterfaceVersion())
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return JVM_INTERFACE_VERSION;
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JVM_END
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// java.lang.System //////////////////////////////////////////////////////////////////////
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JVM_LEAF(jlong, JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored))
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JVMWrapper("JVM_CurrentTimeMillis");
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return os::javaTimeMillis();
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JVM_END
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JVM_LEAF(jlong, JVM_NanoTime(JNIEnv *env, jclass ignored))
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JVMWrapper("JVM_NanoTime");
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return os::javaTimeNanos();
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JVM_END
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JVM_ENTRY(void, JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
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jobject dst, jint dst_pos, jint length))
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JVMWrapper("JVM_ArrayCopy");
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// Check if we have null pointers
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if (src == NULL || dst == NULL) {
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THROW(vmSymbols::java_lang_NullPointerException());
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}
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arrayOop s = arrayOop(JNIHandles::resolve_non_null(src));
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arrayOop d = arrayOop(JNIHandles::resolve_non_null(dst));
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assert(s->is_oop(), "JVM_ArrayCopy: src not an oop");
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assert(d->is_oop(), "JVM_ArrayCopy: dst not an oop");
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// Do copy
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Klass::cast(s->klass())->copy_array(s, src_pos, d, dst_pos, length, thread);
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JVM_END
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static void set_property(Handle props, const char* key, const char* value, TRAPS) {
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JavaValue r(T_OBJECT);
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// public synchronized Object put(Object key, Object value);
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HandleMark hm(THREAD);
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Handle key_str = java_lang_String::create_from_platform_dependent_str(key, CHECK);
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Handle value_str = java_lang_String::create_from_platform_dependent_str((value != NULL ? value : ""), CHECK);
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JavaCalls::call_virtual(&r,
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props,
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KlassHandle(THREAD, SystemDictionary::properties_klass()),
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vmSymbolHandles::put_name(),
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vmSymbolHandles::object_object_object_signature(),
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key_str,
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value_str,
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THREAD);
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}
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#define PUTPROP(props, name, value) set_property((props), (name), (value), CHECK_(properties));
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JVM_ENTRY(jobject, JVM_InitProperties(JNIEnv *env, jobject properties))
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JVMWrapper("JVM_InitProperties");
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ResourceMark rm;
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Handle props(THREAD, JNIHandles::resolve_non_null(properties));
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// System property list includes both user set via -D option and
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// jvm system specific properties.
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for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
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PUTPROP(props, p->key(), p->value());
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}
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// Convert the -XX:MaxDirectMemorySize= command line flag
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// to the sun.nio.MaxDirectMemorySize property.
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// Do this after setting user properties to prevent people
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// from setting the value with a -D option, as requested.
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{
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char as_chars[256];
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jio_snprintf(as_chars, sizeof(as_chars), INTX_FORMAT, MaxDirectMemorySize);
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PUTPROP(props, "sun.nio.MaxDirectMemorySize", as_chars);
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}
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// JVM monitoring and management support
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// Add the sun.management.compiler property for the compiler's name
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{
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#undef CSIZE
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#if defined(_LP64) || defined(_WIN64)
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#define CSIZE "64-Bit "
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#else
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#define CSIZE
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#endif // 64bit
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#ifdef TIERED
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const char* compiler_name = "HotSpot " CSIZE "Tiered Compilers";
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#else
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#if defined(COMPILER1)
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const char* compiler_name = "HotSpot " CSIZE "Client Compiler";
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#elif defined(COMPILER2)
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const char* compiler_name = "HotSpot " CSIZE "Server Compiler";
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#else
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const char* compiler_name = "";
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#endif // compilers
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#endif // TIERED
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if (*compiler_name != '\0' &&
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(Arguments::mode() != Arguments::_int)) {
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PUTPROP(props, "sun.management.compiler", compiler_name);
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}
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}
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return properties;
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JVM_END
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// java.lang.Runtime /////////////////////////////////////////////////////////////////////////
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extern volatile jint vm_created;
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JVM_ENTRY_NO_ENV(void, JVM_Exit(jint code))
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if (vm_created != 0 && (code == 0)) {
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// The VM is about to exit. We call back into Java to check whether finalizers should be run
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Universe::run_finalizers_on_exit();
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}
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before_exit(thread);
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vm_exit(code);
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JVM_END
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JVM_ENTRY_NO_ENV(void, JVM_Halt(jint code))
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before_exit(thread);
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vm_exit(code);
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JVM_END
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JVM_LEAF(void, JVM_OnExit(void (*func)(void)))
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register_on_exit_function(func);
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JVM_END
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JVM_ENTRY_NO_ENV(void, JVM_GC(void))
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JVMWrapper("JVM_GC");
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if (!DisableExplicitGC) {
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Universe::heap()->collect(GCCause::_java_lang_system_gc);
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}
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JVM_END
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JVM_LEAF(jlong, JVM_MaxObjectInspectionAge(void))
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JVMWrapper("JVM_MaxObjectInspectionAge");
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return Universe::heap()->millis_since_last_gc();
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JVM_END
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JVM_LEAF(void, JVM_TraceInstructions(jboolean on))
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if (PrintJVMWarnings) warning("JVM_TraceInstructions not supported");
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JVM_END
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JVM_LEAF(void, JVM_TraceMethodCalls(jboolean on))
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if (PrintJVMWarnings) warning("JVM_TraceMethodCalls not supported");
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JVM_END
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static inline jlong convert_size_t_to_jlong(size_t val) {
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// In the 64-bit vm, a size_t can overflow a jlong (which is signed).
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NOT_LP64 (return (jlong)val;)
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LP64_ONLY(return (jlong)MIN2(val, (size_t)max_jlong);)
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}
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JVM_ENTRY_NO_ENV(jlong, JVM_TotalMemory(void))
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JVMWrapper("JVM_TotalMemory");
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size_t n = Universe::heap()->capacity();
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return convert_size_t_to_jlong(n);
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JVM_END
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JVM_ENTRY_NO_ENV(jlong, JVM_FreeMemory(void))
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JVMWrapper("JVM_FreeMemory");
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CollectedHeap* ch = Universe::heap();
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size_t n = ch->capacity() - ch->used();
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return convert_size_t_to_jlong(n);
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JVM_END
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JVM_ENTRY_NO_ENV(jlong, JVM_MaxMemory(void))
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JVMWrapper("JVM_MaxMemory");
|
|
387 |
size_t n = Universe::heap()->max_capacity();
|
|
388 |
return convert_size_t_to_jlong(n);
|
|
389 |
JVM_END
|
|
390 |
|
|
391 |
|
|
392 |
JVM_ENTRY_NO_ENV(jint, JVM_ActiveProcessorCount(void))
|
|
393 |
JVMWrapper("JVM_ActiveProcessorCount");
|
|
394 |
return os::active_processor_count();
|
|
395 |
JVM_END
|
|
396 |
|
|
397 |
|
|
398 |
|
|
399 |
// java.lang.Throwable //////////////////////////////////////////////////////
|
|
400 |
|
|
401 |
|
|
402 |
JVM_ENTRY(void, JVM_FillInStackTrace(JNIEnv *env, jobject receiver))
|
|
403 |
JVMWrapper("JVM_FillInStackTrace");
|
|
404 |
Handle exception(thread, JNIHandles::resolve_non_null(receiver));
|
|
405 |
java_lang_Throwable::fill_in_stack_trace(exception);
|
|
406 |
JVM_END
|
|
407 |
|
|
408 |
|
|
409 |
JVM_ENTRY(void, JVM_PrintStackTrace(JNIEnv *env, jobject receiver, jobject printable))
|
|
410 |
JVMWrapper("JVM_PrintStackTrace");
|
|
411 |
// Note: This is no longer used in Merlin, but we still support it for compatibility.
|
|
412 |
oop exception = JNIHandles::resolve_non_null(receiver);
|
|
413 |
oop stream = JNIHandles::resolve_non_null(printable);
|
|
414 |
java_lang_Throwable::print_stack_trace(exception, stream);
|
|
415 |
JVM_END
|
|
416 |
|
|
417 |
|
|
418 |
JVM_ENTRY(jint, JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable))
|
|
419 |
JVMWrapper("JVM_GetStackTraceDepth");
|
|
420 |
oop exception = JNIHandles::resolve(throwable);
|
|
421 |
return java_lang_Throwable::get_stack_trace_depth(exception, THREAD);
|
|
422 |
JVM_END
|
|
423 |
|
|
424 |
|
|
425 |
JVM_ENTRY(jobject, JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index))
|
|
426 |
JVMWrapper("JVM_GetStackTraceElement");
|
|
427 |
JvmtiVMObjectAllocEventCollector oam; // This ctor (throughout this module) may trigger a safepoint/GC
|
|
428 |
oop exception = JNIHandles::resolve(throwable);
|
|
429 |
oop element = java_lang_Throwable::get_stack_trace_element(exception, index, CHECK_NULL);
|
|
430 |
return JNIHandles::make_local(env, element);
|
|
431 |
JVM_END
|
|
432 |
|
|
433 |
|
|
434 |
// java.lang.Object ///////////////////////////////////////////////
|
|
435 |
|
|
436 |
|
|
437 |
JVM_ENTRY(jint, JVM_IHashCode(JNIEnv* env, jobject handle))
|
|
438 |
JVMWrapper("JVM_IHashCode");
|
|
439 |
// as implemented in the classic virtual machine; return 0 if object is NULL
|
|
440 |
return handle == NULL ? 0 : ObjectSynchronizer::FastHashCode (THREAD, JNIHandles::resolve_non_null(handle)) ;
|
|
441 |
JVM_END
|
|
442 |
|
|
443 |
|
|
444 |
JVM_ENTRY(void, JVM_MonitorWait(JNIEnv* env, jobject handle, jlong ms))
|
|
445 |
JVMWrapper("JVM_MonitorWait");
|
|
446 |
Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
|
|
447 |
assert(obj->is_instance() || obj->is_array(), "JVM_MonitorWait must apply to an object");
|
|
448 |
JavaThreadInObjectWaitState jtiows(thread, ms != 0);
|
|
449 |
if (JvmtiExport::should_post_monitor_wait()) {
|
|
450 |
JvmtiExport::post_monitor_wait((JavaThread *)THREAD, (oop)obj(), ms);
|
|
451 |
}
|
|
452 |
ObjectSynchronizer::wait(obj, ms, CHECK);
|
|
453 |
JVM_END
|
|
454 |
|
|
455 |
|
|
456 |
JVM_ENTRY(void, JVM_MonitorNotify(JNIEnv* env, jobject handle))
|
|
457 |
JVMWrapper("JVM_MonitorNotify");
|
|
458 |
Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
|
|
459 |
assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotify must apply to an object");
|
|
460 |
ObjectSynchronizer::notify(obj, CHECK);
|
|
461 |
JVM_END
|
|
462 |
|
|
463 |
|
|
464 |
JVM_ENTRY(void, JVM_MonitorNotifyAll(JNIEnv* env, jobject handle))
|
|
465 |
JVMWrapper("JVM_MonitorNotifyAll");
|
|
466 |
Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
|
|
467 |
assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotifyAll must apply to an object");
|
|
468 |
ObjectSynchronizer::notifyall(obj, CHECK);
|
|
469 |
JVM_END
|
|
470 |
|
|
471 |
|
|
472 |
JVM_ENTRY(jobject, JVM_Clone(JNIEnv* env, jobject handle))
|
|
473 |
JVMWrapper("JVM_Clone");
|
|
474 |
Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
|
|
475 |
const KlassHandle klass (THREAD, obj->klass());
|
|
476 |
JvmtiVMObjectAllocEventCollector oam;
|
|
477 |
|
|
478 |
#ifdef ASSERT
|
|
479 |
// Just checking that the cloneable flag is set correct
|
|
480 |
if (obj->is_javaArray()) {
|
|
481 |
guarantee(klass->is_cloneable(), "all arrays are cloneable");
|
|
482 |
} else {
|
|
483 |
guarantee(obj->is_instance(), "should be instanceOop");
|
|
484 |
bool cloneable = klass->is_subtype_of(SystemDictionary::cloneable_klass());
|
|
485 |
guarantee(cloneable == klass->is_cloneable(), "incorrect cloneable flag");
|
|
486 |
}
|
|
487 |
#endif
|
|
488 |
|
|
489 |
// Check if class of obj supports the Cloneable interface.
|
|
490 |
// All arrays are considered to be cloneable (See JLS 20.1.5)
|
|
491 |
if (!klass->is_cloneable()) {
|
|
492 |
ResourceMark rm(THREAD);
|
|
493 |
THROW_MSG_0(vmSymbols::java_lang_CloneNotSupportedException(), klass->external_name());
|
|
494 |
}
|
|
495 |
|
|
496 |
// Make shallow object copy
|
|
497 |
const int size = obj->size();
|
|
498 |
oop new_obj = NULL;
|
|
499 |
if (obj->is_javaArray()) {
|
|
500 |
const int length = ((arrayOop)obj())->length();
|
|
501 |
new_obj = CollectedHeap::array_allocate(klass, size, length, CHECK_NULL);
|
|
502 |
} else {
|
|
503 |
new_obj = CollectedHeap::obj_allocate(klass, size, CHECK_NULL);
|
|
504 |
}
|
|
505 |
// 4839641 (4840070): We must do an oop-atomic copy, because if another thread
|
|
506 |
// is modifying a reference field in the clonee, a non-oop-atomic copy might
|
|
507 |
// be suspended in the middle of copying the pointer and end up with parts
|
|
508 |
// of two different pointers in the field. Subsequent dereferences will crash.
|
|
509 |
// 4846409: an oop-copy of objects with long or double fields or arrays of same
|
|
510 |
// won't copy the longs/doubles atomically in 32-bit vm's, so we copy jlongs instead
|
|
511 |
// of oops. We know objects are aligned on a minimum of an jlong boundary.
|
|
512 |
// The same is true of StubRoutines::object_copy and the various oop_copy
|
|
513 |
// variants, and of the code generated by the inline_native_clone intrinsic.
|
|
514 |
assert(MinObjAlignmentInBytes >= BytesPerLong, "objects misaligned");
|
|
515 |
Copy::conjoint_jlongs_atomic((jlong*)obj(), (jlong*)new_obj,
|
|
516 |
(size_t)align_object_size(size) / HeapWordsPerLong);
|
|
517 |
// Clear the header
|
|
518 |
new_obj->init_mark();
|
|
519 |
|
|
520 |
// Store check (mark entire object and let gc sort it out)
|
|
521 |
BarrierSet* bs = Universe::heap()->barrier_set();
|
|
522 |
assert(bs->has_write_region_opt(), "Barrier set does not have write_region");
|
|
523 |
bs->write_region(MemRegion((HeapWord*)new_obj, size));
|
|
524 |
|
|
525 |
// Caution: this involves a java upcall, so the clone should be
|
|
526 |
// "gc-robust" by this stage.
|
|
527 |
if (klass->has_finalizer()) {
|
|
528 |
assert(obj->is_instance(), "should be instanceOop");
|
|
529 |
new_obj = instanceKlass::register_finalizer(instanceOop(new_obj), CHECK_NULL);
|
|
530 |
}
|
|
531 |
|
|
532 |
return JNIHandles::make_local(env, oop(new_obj));
|
|
533 |
JVM_END
|
|
534 |
|
|
535 |
// java.lang.Compiler ////////////////////////////////////////////////////
|
|
536 |
|
|
537 |
// The initial cuts of the HotSpot VM will not support JITs, and all existing
|
|
538 |
// JITs would need extensive changes to work with HotSpot. The JIT-related JVM
|
|
539 |
// functions are all silently ignored unless JVM warnings are printed.
|
|
540 |
|
|
541 |
JVM_LEAF(void, JVM_InitializeCompiler (JNIEnv *env, jclass compCls))
|
|
542 |
if (PrintJVMWarnings) warning("JVM_InitializeCompiler not supported");
|
|
543 |
JVM_END
|
|
544 |
|
|
545 |
|
|
546 |
JVM_LEAF(jboolean, JVM_IsSilentCompiler(JNIEnv *env, jclass compCls))
|
|
547 |
if (PrintJVMWarnings) warning("JVM_IsSilentCompiler not supported");
|
|
548 |
return JNI_FALSE;
|
|
549 |
JVM_END
|
|
550 |
|
|
551 |
|
|
552 |
JVM_LEAF(jboolean, JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls))
|
|
553 |
if (PrintJVMWarnings) warning("JVM_CompileClass not supported");
|
|
554 |
return JNI_FALSE;
|
|
555 |
JVM_END
|
|
556 |
|
|
557 |
|
|
558 |
JVM_LEAF(jboolean, JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname))
|
|
559 |
if (PrintJVMWarnings) warning("JVM_CompileClasses not supported");
|
|
560 |
return JNI_FALSE;
|
|
561 |
JVM_END
|
|
562 |
|
|
563 |
|
|
564 |
JVM_LEAF(jobject, JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg))
|
|
565 |
if (PrintJVMWarnings) warning("JVM_CompilerCommand not supported");
|
|
566 |
return NULL;
|
|
567 |
JVM_END
|
|
568 |
|
|
569 |
|
|
570 |
JVM_LEAF(void, JVM_EnableCompiler(JNIEnv *env, jclass compCls))
|
|
571 |
if (PrintJVMWarnings) warning("JVM_EnableCompiler not supported");
|
|
572 |
JVM_END
|
|
573 |
|
|
574 |
|
|
575 |
JVM_LEAF(void, JVM_DisableCompiler(JNIEnv *env, jclass compCls))
|
|
576 |
if (PrintJVMWarnings) warning("JVM_DisableCompiler not supported");
|
|
577 |
JVM_END
|
|
578 |
|
|
579 |
|
|
580 |
|
|
581 |
// Error message support //////////////////////////////////////////////////////
|
|
582 |
|
|
583 |
JVM_LEAF(jint, JVM_GetLastErrorString(char *buf, int len))
|
|
584 |
JVMWrapper("JVM_GetLastErrorString");
|
|
585 |
return hpi::lasterror(buf, len);
|
|
586 |
JVM_END
|
|
587 |
|
|
588 |
|
|
589 |
// java.io.File ///////////////////////////////////////////////////////////////
|
|
590 |
|
|
591 |
JVM_LEAF(char*, JVM_NativePath(char* path))
|
|
592 |
JVMWrapper2("JVM_NativePath (%s)", path);
|
|
593 |
return hpi::native_path(path);
|
|
594 |
JVM_END
|
|
595 |
|
|
596 |
|
|
597 |
// Misc. class handling ///////////////////////////////////////////////////////////
|
|
598 |
|
|
599 |
|
|
600 |
JVM_ENTRY(jclass, JVM_GetCallerClass(JNIEnv* env, int depth))
|
|
601 |
JVMWrapper("JVM_GetCallerClass");
|
|
602 |
klassOop k = thread->security_get_caller_class(depth);
|
|
603 |
return (k == NULL) ? NULL : (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());
|
|
604 |
JVM_END
|
|
605 |
|
|
606 |
|
|
607 |
JVM_ENTRY(jclass, JVM_FindPrimitiveClass(JNIEnv* env, const char* utf))
|
|
608 |
JVMWrapper("JVM_FindPrimitiveClass");
|
|
609 |
oop mirror = NULL;
|
|
610 |
BasicType t = name2type(utf);
|
|
611 |
if (t != T_ILLEGAL && t != T_OBJECT && t != T_ARRAY) {
|
|
612 |
mirror = Universe::java_mirror(t);
|
|
613 |
}
|
|
614 |
if (mirror == NULL) {
|
|
615 |
THROW_MSG_0(vmSymbols::java_lang_ClassNotFoundException(), (char*) utf);
|
|
616 |
} else {
|
|
617 |
return (jclass) JNIHandles::make_local(env, mirror);
|
|
618 |
}
|
|
619 |
JVM_END
|
|
620 |
|
|
621 |
|
|
622 |
JVM_ENTRY(void, JVM_ResolveClass(JNIEnv* env, jclass cls))
|
|
623 |
JVMWrapper("JVM_ResolveClass");
|
|
624 |
if (PrintJVMWarnings) warning("JVM_ResolveClass not implemented");
|
|
625 |
JVM_END
|
|
626 |
|
|
627 |
|
|
628 |
JVM_ENTRY(jclass, JVM_FindClassFromClassLoader(JNIEnv* env, const char* name,
|
|
629 |
jboolean init, jobject loader,
|
|
630 |
jboolean throwError))
|
|
631 |
JVMWrapper3("JVM_FindClassFromClassLoader %s throw %s", name,
|
|
632 |
throwError ? "error" : "exception");
|
|
633 |
// Java libraries should ensure that name is never null...
|
|
634 |
if (name == NULL || (int)strlen(name) > symbolOopDesc::max_length()) {
|
|
635 |
// It's impossible to create this class; the name cannot fit
|
|
636 |
// into the constant pool.
|
|
637 |
if (throwError) {
|
|
638 |
THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
|
|
639 |
} else {
|
|
640 |
THROW_MSG_0(vmSymbols::java_lang_ClassNotFoundException(), name);
|
|
641 |
}
|
|
642 |
}
|
|
643 |
symbolHandle h_name = oopFactory::new_symbol_handle(name, CHECK_NULL);
|
|
644 |
Handle h_loader(THREAD, JNIHandles::resolve(loader));
|
|
645 |
jclass result = find_class_from_class_loader(env, h_name, init, h_loader,
|
|
646 |
Handle(), throwError, thread);
|
|
647 |
|
|
648 |
if (TraceClassResolution && result != NULL) {
|
|
649 |
trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));
|
|
650 |
}
|
|
651 |
|
|
652 |
return result;
|
|
653 |
JVM_END
|
|
654 |
|
|
655 |
|
|
656 |
JVM_ENTRY(jclass, JVM_FindClassFromClass(JNIEnv *env, const char *name,
|
|
657 |
jboolean init, jclass from))
|
|
658 |
JVMWrapper2("JVM_FindClassFromClass %s", name);
|
|
659 |
if (name == NULL || (int)strlen(name) > symbolOopDesc::max_length()) {
|
|
660 |
// It's impossible to create this class; the name cannot fit
|
|
661 |
// into the constant pool.
|
|
662 |
THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
|
|
663 |
}
|
|
664 |
symbolHandle h_name = oopFactory::new_symbol_handle(name, CHECK_NULL);
|
|
665 |
oop from_class_oop = JNIHandles::resolve(from);
|
|
666 |
klassOop from_class = (from_class_oop == NULL)
|
|
667 |
? (klassOop)NULL
|
|
668 |
: java_lang_Class::as_klassOop(from_class_oop);
|
|
669 |
oop class_loader = NULL;
|
|
670 |
oop protection_domain = NULL;
|
|
671 |
if (from_class != NULL) {
|
|
672 |
class_loader = Klass::cast(from_class)->class_loader();
|
|
673 |
protection_domain = Klass::cast(from_class)->protection_domain();
|
|
674 |
}
|
|
675 |
Handle h_loader(THREAD, class_loader);
|
|
676 |
Handle h_prot (THREAD, protection_domain);
|
|
677 |
jclass result = find_class_from_class_loader(env, h_name, init, h_loader,
|
|
678 |
h_prot, true, thread);
|
|
679 |
|
|
680 |
if (TraceClassResolution && result != NULL) {
|
|
681 |
// this function is generally only used for class loading during verification.
|
|
682 |
ResourceMark rm;
|
|
683 |
oop from_mirror = JNIHandles::resolve_non_null(from);
|
|
684 |
klassOop from_class = java_lang_Class::as_klassOop(from_mirror);
|
|
685 |
const char * from_name = Klass::cast(from_class)->external_name();
|
|
686 |
|
|
687 |
oop mirror = JNIHandles::resolve_non_null(result);
|
|
688 |
klassOop to_class = java_lang_Class::as_klassOop(mirror);
|
|
689 |
const char * to = Klass::cast(to_class)->external_name();
|
|
690 |
tty->print("RESOLVE %s %s (verification)\n", from_name, to);
|
|
691 |
}
|
|
692 |
|
|
693 |
return result;
|
|
694 |
JVM_END
|
|
695 |
|
|
696 |
static void is_lock_held_by_thread(Handle loader, PerfCounter* counter, TRAPS) {
|
|
697 |
if (loader.is_null()) {
|
|
698 |
return;
|
|
699 |
}
|
|
700 |
|
|
701 |
// check whether the current caller thread holds the lock or not.
|
|
702 |
// If not, increment the corresponding counter
|
|
703 |
if (ObjectSynchronizer::query_lock_ownership((JavaThread*)THREAD, loader) !=
|
|
704 |
ObjectSynchronizer::owner_self) {
|
|
705 |
counter->inc();
|
|
706 |
}
|
|
707 |
}
|
|
708 |
|
|
709 |
// common code for JVM_DefineClass() and JVM_DefineClassWithSource()
|
|
710 |
static jclass jvm_define_class_common(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize len, jobject pd, const char *source, TRAPS) {
|
|
711 |
|
|
712 |
// Since exceptions can be thrown, class initialization can take place
|
|
713 |
// if name is NULL no check for class name in .class stream has to be made.
|
|
714 |
symbolHandle class_name;
|
|
715 |
if (name != NULL) {
|
|
716 |
const int str_len = (int)strlen(name);
|
|
717 |
if (str_len > symbolOopDesc::max_length()) {
|
|
718 |
// It's impossible to create this class; the name cannot fit
|
|
719 |
// into the constant pool.
|
|
720 |
THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
|
|
721 |
}
|
|
722 |
class_name = oopFactory::new_symbol_handle(name, str_len, CHECK_NULL);
|
|
723 |
}
|
|
724 |
|
|
725 |
ResourceMark rm(THREAD);
|
|
726 |
ClassFileStream st((u1*) buf, len, (char *)source);
|
|
727 |
Handle class_loader (THREAD, JNIHandles::resolve(loader));
|
|
728 |
if (UsePerfData) {
|
|
729 |
is_lock_held_by_thread(class_loader,
|
|
730 |
ClassLoader::sync_JVMDefineClassLockFreeCounter(),
|
|
731 |
THREAD);
|
|
732 |
}
|
|
733 |
Handle protection_domain (THREAD, JNIHandles::resolve(pd));
|
|
734 |
klassOop k = SystemDictionary::resolve_from_stream(class_name, class_loader,
|
|
735 |
protection_domain, &st,
|
|
736 |
CHECK_NULL);
|
|
737 |
|
|
738 |
if (TraceClassResolution && k != NULL) {
|
|
739 |
trace_class_resolution(k);
|
|
740 |
}
|
|
741 |
|
|
742 |
return (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());
|
|
743 |
}
|
|
744 |
|
|
745 |
|
|
746 |
JVM_ENTRY(jclass, JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize len, jobject pd))
|
|
747 |
JVMWrapper2("JVM_DefineClass %s", name);
|
|
748 |
|
|
749 |
return jvm_define_class_common(env, name, loader, buf, len, pd, "__JVM_DefineClass__", THREAD);
|
|
750 |
JVM_END
|
|
751 |
|
|
752 |
|
|
753 |
JVM_ENTRY(jclass, JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize len, jobject pd, const char *source))
|
|
754 |
JVMWrapper2("JVM_DefineClassWithSource %s", name);
|
|
755 |
|
|
756 |
return jvm_define_class_common(env, name, loader, buf, len, pd, source, THREAD);
|
|
757 |
JVM_END
|
|
758 |
|
|
759 |
|
|
760 |
JVM_ENTRY(jclass, JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name))
|
|
761 |
JVMWrapper("JVM_FindLoadedClass");
|
|
762 |
ResourceMark rm(THREAD);
|
|
763 |
|
|
764 |
Handle h_name (THREAD, JNIHandles::resolve_non_null(name));
|
|
765 |
Handle string = java_lang_String::internalize_classname(h_name, CHECK_NULL);
|
|
766 |
|
|
767 |
const char* str = java_lang_String::as_utf8_string(string());
|
|
768 |
// Sanity check, don't expect null
|
|
769 |
if (str == NULL) return NULL;
|
|
770 |
|
|
771 |
const int str_len = (int)strlen(str);
|
|
772 |
if (str_len > symbolOopDesc::max_length()) {
|
|
773 |
// It's impossible to create this class; the name cannot fit
|
|
774 |
// into the constant pool.
|
|
775 |
return NULL;
|
|
776 |
}
|
|
777 |
symbolHandle klass_name = oopFactory::new_symbol_handle(str, str_len,CHECK_NULL);
|
|
778 |
|
|
779 |
// Security Note:
|
|
780 |
// The Java level wrapper will perform the necessary security check allowing
|
|
781 |
// us to pass the NULL as the initiating class loader.
|
|
782 |
Handle h_loader(THREAD, JNIHandles::resolve(loader));
|
|
783 |
if (UsePerfData) {
|
|
784 |
is_lock_held_by_thread(h_loader,
|
|
785 |
ClassLoader::sync_JVMFindLoadedClassLockFreeCounter(),
|
|
786 |
THREAD);
|
|
787 |
}
|
|
788 |
|
|
789 |
klassOop k = SystemDictionary::find_instance_or_array_klass(klass_name,
|
|
790 |
h_loader,
|
|
791 |
Handle(),
|
|
792 |
CHECK_NULL);
|
|
793 |
|
|
794 |
return (k == NULL) ? NULL :
|
|
795 |
(jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());
|
|
796 |
JVM_END
|
|
797 |
|
|
798 |
|
|
799 |
// Reflection support //////////////////////////////////////////////////////////////////////////////
|
|
800 |
|
|
801 |
JVM_ENTRY(jstring, JVM_GetClassName(JNIEnv *env, jclass cls))
|
|
802 |
assert (cls != NULL, "illegal class");
|
|
803 |
JVMWrapper("JVM_GetClassName");
|
|
804 |
JvmtiVMObjectAllocEventCollector oam;
|
|
805 |
ResourceMark rm(THREAD);
|
|
806 |
const char* name;
|
|
807 |
if (java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
|
|
808 |
name = type2name(java_lang_Class::primitive_type(JNIHandles::resolve(cls)));
|
|
809 |
} else {
|
|
810 |
// Consider caching interned string in Klass
|
|
811 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
|
|
812 |
assert(k->is_klass(), "just checking");
|
|
813 |
name = Klass::cast(k)->external_name();
|
|
814 |
}
|
|
815 |
oop result = StringTable::intern((char*) name, CHECK_NULL);
|
|
816 |
return (jstring) JNIHandles::make_local(env, result);
|
|
817 |
JVM_END
|
|
818 |
|
|
819 |
|
|
820 |
JVM_ENTRY(jobjectArray, JVM_GetClassInterfaces(JNIEnv *env, jclass cls))
|
|
821 |
JVMWrapper("JVM_GetClassInterfaces");
|
|
822 |
JvmtiVMObjectAllocEventCollector oam;
|
|
823 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
824 |
|
|
825 |
// Special handling for primitive objects
|
|
826 |
if (java_lang_Class::is_primitive(mirror)) {
|
|
827 |
// Primitive objects does not have any interfaces
|
|
828 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::class_klass(), 0, CHECK_NULL);
|
|
829 |
return (jobjectArray) JNIHandles::make_local(env, r);
|
|
830 |
}
|
|
831 |
|
|
832 |
KlassHandle klass(thread, java_lang_Class::as_klassOop(mirror));
|
|
833 |
// Figure size of result array
|
|
834 |
int size;
|
|
835 |
if (klass->oop_is_instance()) {
|
|
836 |
size = instanceKlass::cast(klass())->local_interfaces()->length();
|
|
837 |
} else {
|
|
838 |
assert(klass->oop_is_objArray() || klass->oop_is_typeArray(), "Illegal mirror klass");
|
|
839 |
size = 2;
|
|
840 |
}
|
|
841 |
|
|
842 |
// Allocate result array
|
|
843 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::class_klass(), size, CHECK_NULL);
|
|
844 |
objArrayHandle result (THREAD, r);
|
|
845 |
// Fill in result
|
|
846 |
if (klass->oop_is_instance()) {
|
|
847 |
// Regular instance klass, fill in all local interfaces
|
|
848 |
for (int index = 0; index < size; index++) {
|
|
849 |
klassOop k = klassOop(instanceKlass::cast(klass())->local_interfaces()->obj_at(index));
|
|
850 |
result->obj_at_put(index, Klass::cast(k)->java_mirror());
|
|
851 |
}
|
|
852 |
} else {
|
|
853 |
// All arrays implement java.lang.Cloneable and java.io.Serializable
|
|
854 |
result->obj_at_put(0, Klass::cast(SystemDictionary::cloneable_klass())->java_mirror());
|
|
855 |
result->obj_at_put(1, Klass::cast(SystemDictionary::serializable_klass())->java_mirror());
|
|
856 |
}
|
|
857 |
return (jobjectArray) JNIHandles::make_local(env, result());
|
|
858 |
JVM_END
|
|
859 |
|
|
860 |
|
|
861 |
JVM_ENTRY(jobject, JVM_GetClassLoader(JNIEnv *env, jclass cls))
|
|
862 |
JVMWrapper("JVM_GetClassLoader");
|
|
863 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
|
|
864 |
return NULL;
|
|
865 |
}
|
|
866 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
867 |
oop loader = Klass::cast(k)->class_loader();
|
|
868 |
return JNIHandles::make_local(env, loader);
|
|
869 |
JVM_END
|
|
870 |
|
|
871 |
|
|
872 |
JVM_QUICK_ENTRY(jboolean, JVM_IsInterface(JNIEnv *env, jclass cls))
|
|
873 |
JVMWrapper("JVM_IsInterface");
|
|
874 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
875 |
if (java_lang_Class::is_primitive(mirror)) {
|
|
876 |
return JNI_FALSE;
|
|
877 |
}
|
|
878 |
klassOop k = java_lang_Class::as_klassOop(mirror);
|
|
879 |
jboolean result = Klass::cast(k)->is_interface();
|
|
880 |
assert(!result || Klass::cast(k)->oop_is_instance(),
|
|
881 |
"all interfaces are instance types");
|
|
882 |
// The compiler intrinsic for isInterface tests the
|
|
883 |
// Klass::_access_flags bits in the same way.
|
|
884 |
return result;
|
|
885 |
JVM_END
|
|
886 |
|
|
887 |
|
|
888 |
JVM_ENTRY(jobjectArray, JVM_GetClassSigners(JNIEnv *env, jclass cls))
|
|
889 |
JVMWrapper("JVM_GetClassSigners");
|
|
890 |
JvmtiVMObjectAllocEventCollector oam;
|
|
891 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
|
|
892 |
// There are no signers for primitive types
|
|
893 |
return NULL;
|
|
894 |
}
|
|
895 |
|
|
896 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
897 |
objArrayOop signers = NULL;
|
|
898 |
if (Klass::cast(k)->oop_is_instance()) {
|
|
899 |
signers = instanceKlass::cast(k)->signers();
|
|
900 |
}
|
|
901 |
|
|
902 |
// If there are no signers set in the class, or if the class
|
|
903 |
// is an array, return NULL.
|
|
904 |
if (signers == NULL) return NULL;
|
|
905 |
|
|
906 |
// copy of the signers array
|
|
907 |
klassOop element = objArrayKlass::cast(signers->klass())->element_klass();
|
|
908 |
objArrayOop signers_copy = oopFactory::new_objArray(element, signers->length(), CHECK_NULL);
|
|
909 |
for (int index = 0; index < signers->length(); index++) {
|
|
910 |
signers_copy->obj_at_put(index, signers->obj_at(index));
|
|
911 |
}
|
|
912 |
|
|
913 |
// return the copy
|
|
914 |
return (jobjectArray) JNIHandles::make_local(env, signers_copy);
|
|
915 |
JVM_END
|
|
916 |
|
|
917 |
|
|
918 |
JVM_ENTRY(void, JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers))
|
|
919 |
JVMWrapper("JVM_SetClassSigners");
|
|
920 |
if (!java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
|
|
921 |
// This call is ignored for primitive types and arrays.
|
|
922 |
// Signers are only set once, ClassLoader.java, and thus shouldn't
|
|
923 |
// be called with an array. Only the bootstrap loader creates arrays.
|
|
924 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
925 |
if (Klass::cast(k)->oop_is_instance()) {
|
|
926 |
instanceKlass::cast(k)->set_signers(objArrayOop(JNIHandles::resolve(signers)));
|
|
927 |
}
|
|
928 |
}
|
|
929 |
JVM_END
|
|
930 |
|
|
931 |
|
|
932 |
JVM_ENTRY(jobject, JVM_GetProtectionDomain(JNIEnv *env, jclass cls))
|
|
933 |
JVMWrapper("JVM_GetProtectionDomain");
|
|
934 |
if (JNIHandles::resolve(cls) == NULL) {
|
|
935 |
THROW_(vmSymbols::java_lang_NullPointerException(), NULL);
|
|
936 |
}
|
|
937 |
|
|
938 |
if (java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
|
|
939 |
// Primitive types does not have a protection domain.
|
|
940 |
return NULL;
|
|
941 |
}
|
|
942 |
|
|
943 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
|
|
944 |
return (jobject) JNIHandles::make_local(env, Klass::cast(k)->protection_domain());
|
|
945 |
JVM_END
|
|
946 |
|
|
947 |
|
|
948 |
// Obsolete since 1.2 (Class.setProtectionDomain removed), although
|
|
949 |
// still defined in core libraries as of 1.5.
|
|
950 |
JVM_ENTRY(void, JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain))
|
|
951 |
JVMWrapper("JVM_SetProtectionDomain");
|
|
952 |
if (JNIHandles::resolve(cls) == NULL) {
|
|
953 |
THROW(vmSymbols::java_lang_NullPointerException());
|
|
954 |
}
|
|
955 |
if (!java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
|
|
956 |
// Call is ignored for primitive types
|
|
957 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
|
|
958 |
|
|
959 |
// cls won't be an array, as this called only from ClassLoader.defineClass
|
|
960 |
if (Klass::cast(k)->oop_is_instance()) {
|
|
961 |
oop pd = JNIHandles::resolve(protection_domain);
|
|
962 |
assert(pd == NULL || pd->is_oop(), "just checking");
|
|
963 |
instanceKlass::cast(k)->set_protection_domain(pd);
|
|
964 |
}
|
|
965 |
}
|
|
966 |
JVM_END
|
|
967 |
|
|
968 |
|
|
969 |
JVM_ENTRY(jobject, JVM_DoPrivileged(JNIEnv *env, jclass cls, jobject action, jobject context, jboolean wrapException))
|
|
970 |
JVMWrapper("JVM_DoPrivileged");
|
|
971 |
|
|
972 |
if (action == NULL) {
|
|
973 |
THROW_MSG_0(vmSymbols::java_lang_NullPointerException(), "Null action");
|
|
974 |
}
|
|
975 |
|
|
976 |
// Stack allocated list of privileged stack elements
|
|
977 |
PrivilegedElement pi;
|
|
978 |
|
|
979 |
// Check that action object understands "Object run()"
|
|
980 |
Handle object (THREAD, JNIHandles::resolve(action));
|
|
981 |
|
|
982 |
// get run() method
|
|
983 |
methodOop m_oop = Klass::cast(object->klass())->uncached_lookup_method(
|
|
984 |
vmSymbols::run_method_name(),
|
|
985 |
vmSymbols::void_object_signature());
|
|
986 |
methodHandle m (THREAD, m_oop);
|
|
987 |
if (m.is_null() || !m->is_method() || !methodOop(m())->is_public() || methodOop(m())->is_static()) {
|
|
988 |
THROW_MSG_0(vmSymbols::java_lang_InternalError(), "No run method");
|
|
989 |
}
|
|
990 |
|
|
991 |
// Compute the frame initiating the do privileged operation and setup the privileged stack
|
|
992 |
vframeStream vfst(thread);
|
|
993 |
vfst.security_get_caller_frame(1);
|
|
994 |
|
|
995 |
if (!vfst.at_end()) {
|
|
996 |
pi.initialize(&vfst, JNIHandles::resolve(context), thread->privileged_stack_top(), CHECK_NULL);
|
|
997 |
thread->set_privileged_stack_top(&pi);
|
|
998 |
}
|
|
999 |
|
|
1000 |
|
|
1001 |
// invoke the Object run() in the action object. We cannot use call_interface here, since the static type
|
|
1002 |
// is not really known - it is either java.security.PrivilegedAction or java.security.PrivilegedExceptionAction
|
|
1003 |
Handle pending_exception;
|
|
1004 |
JavaValue result(T_OBJECT);
|
|
1005 |
JavaCallArguments args(object);
|
|
1006 |
JavaCalls::call(&result, m, &args, THREAD);
|
|
1007 |
|
|
1008 |
// done with action, remove ourselves from the list
|
|
1009 |
if (!vfst.at_end()) {
|
|
1010 |
assert(thread->privileged_stack_top() != NULL && thread->privileged_stack_top() == &pi, "wrong top element");
|
|
1011 |
thread->set_privileged_stack_top(thread->privileged_stack_top()->next());
|
|
1012 |
}
|
|
1013 |
|
|
1014 |
if (HAS_PENDING_EXCEPTION) {
|
|
1015 |
pending_exception = Handle(THREAD, PENDING_EXCEPTION);
|
|
1016 |
CLEAR_PENDING_EXCEPTION;
|
|
1017 |
|
|
1018 |
if ( pending_exception->is_a(SystemDictionary::exception_klass()) &&
|
|
1019 |
!pending_exception->is_a(SystemDictionary::runtime_exception_klass())) {
|
|
1020 |
// Throw a java.security.PrivilegedActionException(Exception e) exception
|
|
1021 |
JavaCallArguments args(pending_exception);
|
|
1022 |
THROW_ARG_0(vmSymbolHandles::java_security_PrivilegedActionException(),
|
|
1023 |
vmSymbolHandles::exception_void_signature(),
|
|
1024 |
&args);
|
|
1025 |
}
|
|
1026 |
}
|
|
1027 |
|
|
1028 |
if (pending_exception.not_null()) THROW_OOP_0(pending_exception());
|
|
1029 |
return JNIHandles::make_local(env, (oop) result.get_jobject());
|
|
1030 |
JVM_END
|
|
1031 |
|
|
1032 |
|
|
1033 |
// Returns the inherited_access_control_context field of the running thread.
|
|
1034 |
JVM_ENTRY(jobject, JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls))
|
|
1035 |
JVMWrapper("JVM_GetInheritedAccessControlContext");
|
|
1036 |
oop result = java_lang_Thread::inherited_access_control_context(thread->threadObj());
|
|
1037 |
return JNIHandles::make_local(env, result);
|
|
1038 |
JVM_END
|
|
1039 |
|
|
1040 |
class RegisterArrayForGC {
|
|
1041 |
private:
|
|
1042 |
JavaThread *_thread;
|
|
1043 |
public:
|
|
1044 |
RegisterArrayForGC(JavaThread *thread, GrowableArray<oop>* array) {
|
|
1045 |
_thread = thread;
|
|
1046 |
_thread->register_array_for_gc(array);
|
|
1047 |
}
|
|
1048 |
|
|
1049 |
~RegisterArrayForGC() {
|
|
1050 |
_thread->register_array_for_gc(NULL);
|
|
1051 |
}
|
|
1052 |
};
|
|
1053 |
|
|
1054 |
|
|
1055 |
JVM_ENTRY(jobject, JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls))
|
|
1056 |
JVMWrapper("JVM_GetStackAccessControlContext");
|
|
1057 |
if (!UsePrivilegedStack) return NULL;
|
|
1058 |
|
|
1059 |
ResourceMark rm(THREAD);
|
|
1060 |
GrowableArray<oop>* local_array = new GrowableArray<oop>(12);
|
|
1061 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1062 |
|
|
1063 |
// count the protection domains on the execution stack. We collapse
|
|
1064 |
// duplicate consecutive protection domains into a single one, as
|
|
1065 |
// well as stopping when we hit a privileged frame.
|
|
1066 |
|
|
1067 |
// Use vframeStream to iterate through Java frames
|
|
1068 |
vframeStream vfst(thread);
|
|
1069 |
|
|
1070 |
oop previous_protection_domain = NULL;
|
|
1071 |
Handle privileged_context(thread, NULL);
|
|
1072 |
bool is_privileged = false;
|
|
1073 |
oop protection_domain = NULL;
|
|
1074 |
|
|
1075 |
for(; !vfst.at_end(); vfst.next()) {
|
|
1076 |
// get method of frame
|
|
1077 |
methodOop method = vfst.method();
|
|
1078 |
intptr_t* frame_id = vfst.frame_id();
|
|
1079 |
|
|
1080 |
// check the privileged frames to see if we have a match
|
|
1081 |
if (thread->privileged_stack_top() && thread->privileged_stack_top()->frame_id() == frame_id) {
|
|
1082 |
// this frame is privileged
|
|
1083 |
is_privileged = true;
|
|
1084 |
privileged_context = Handle(thread, thread->privileged_stack_top()->privileged_context());
|
|
1085 |
protection_domain = thread->privileged_stack_top()->protection_domain();
|
|
1086 |
} else {
|
|
1087 |
protection_domain = instanceKlass::cast(method->method_holder())->protection_domain();
|
|
1088 |
}
|
|
1089 |
|
|
1090 |
if ((previous_protection_domain != protection_domain) && (protection_domain != NULL)) {
|
|
1091 |
local_array->push(protection_domain);
|
|
1092 |
previous_protection_domain = protection_domain;
|
|
1093 |
}
|
|
1094 |
|
|
1095 |
if (is_privileged) break;
|
|
1096 |
}
|
|
1097 |
|
|
1098 |
|
|
1099 |
// either all the domains on the stack were system domains, or
|
|
1100 |
// we had a privileged system domain
|
|
1101 |
if (local_array->is_empty()) {
|
|
1102 |
if (is_privileged && privileged_context.is_null()) return NULL;
|
|
1103 |
|
|
1104 |
oop result = java_security_AccessControlContext::create(objArrayHandle(), is_privileged, privileged_context, CHECK_NULL);
|
|
1105 |
return JNIHandles::make_local(env, result);
|
|
1106 |
}
|
|
1107 |
|
|
1108 |
// the resource area must be registered in case of a gc
|
|
1109 |
RegisterArrayForGC ragc(thread, local_array);
|
|
1110 |
objArrayOop context = oopFactory::new_objArray(SystemDictionary::protectionDomain_klass(),
|
|
1111 |
local_array->length(), CHECK_NULL);
|
|
1112 |
objArrayHandle h_context(thread, context);
|
|
1113 |
for (int index = 0; index < local_array->length(); index++) {
|
|
1114 |
h_context->obj_at_put(index, local_array->at(index));
|
|
1115 |
}
|
|
1116 |
|
|
1117 |
oop result = java_security_AccessControlContext::create(h_context, is_privileged, privileged_context, CHECK_NULL);
|
|
1118 |
|
|
1119 |
return JNIHandles::make_local(env, result);
|
|
1120 |
JVM_END
|
|
1121 |
|
|
1122 |
|
|
1123 |
JVM_QUICK_ENTRY(jboolean, JVM_IsArrayClass(JNIEnv *env, jclass cls))
|
|
1124 |
JVMWrapper("JVM_IsArrayClass");
|
|
1125 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1126 |
return (k != NULL) && Klass::cast(k)->oop_is_javaArray() ? true : false;
|
|
1127 |
JVM_END
|
|
1128 |
|
|
1129 |
|
|
1130 |
JVM_QUICK_ENTRY(jboolean, JVM_IsPrimitiveClass(JNIEnv *env, jclass cls))
|
|
1131 |
JVMWrapper("JVM_IsPrimitiveClass");
|
|
1132 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
1133 |
return (jboolean) java_lang_Class::is_primitive(mirror);
|
|
1134 |
JVM_END
|
|
1135 |
|
|
1136 |
|
|
1137 |
JVM_ENTRY(jclass, JVM_GetComponentType(JNIEnv *env, jclass cls))
|
|
1138 |
JVMWrapper("JVM_GetComponentType");
|
|
1139 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
1140 |
oop result = Reflection::array_component_type(mirror, CHECK_NULL);
|
|
1141 |
return (jclass) JNIHandles::make_local(env, result);
|
|
1142 |
JVM_END
|
|
1143 |
|
|
1144 |
|
|
1145 |
JVM_ENTRY(jint, JVM_GetClassModifiers(JNIEnv *env, jclass cls))
|
|
1146 |
JVMWrapper("JVM_GetClassModifiers");
|
|
1147 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
|
|
1148 |
// Primitive type
|
|
1149 |
return JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC;
|
|
1150 |
}
|
|
1151 |
|
|
1152 |
Klass* k = Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls)));
|
|
1153 |
debug_only(int computed_modifiers = k->compute_modifier_flags(CHECK_0));
|
|
1154 |
assert(k->modifier_flags() == computed_modifiers, "modifiers cache is OK");
|
|
1155 |
return k->modifier_flags();
|
|
1156 |
JVM_END
|
|
1157 |
|
|
1158 |
|
|
1159 |
// Inner class reflection ///////////////////////////////////////////////////////////////////////////////
|
|
1160 |
|
|
1161 |
JVM_ENTRY(jobjectArray, JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass))
|
|
1162 |
const int inner_class_info_index = 0;
|
|
1163 |
const int outer_class_info_index = 1;
|
|
1164 |
|
|
1165 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1166 |
// ofClass is a reference to a java_lang_Class object. The mirror object
|
|
1167 |
// of an instanceKlass
|
|
1168 |
|
|
1169 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass)) ||
|
|
1170 |
! Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_instance()) {
|
|
1171 |
oop result = oopFactory::new_objArray(SystemDictionary::class_klass(), 0, CHECK_NULL);
|
|
1172 |
return (jobjectArray)JNIHandles::make_local(env, result);
|
|
1173 |
}
|
|
1174 |
|
|
1175 |
instanceKlassHandle k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
|
|
1176 |
|
|
1177 |
if (k->inner_classes()->length() == 0) {
|
|
1178 |
// Neither an inner nor outer class
|
|
1179 |
oop result = oopFactory::new_objArray(SystemDictionary::class_klass(), 0, CHECK_NULL);
|
|
1180 |
return (jobjectArray)JNIHandles::make_local(env, result);
|
|
1181 |
}
|
|
1182 |
|
|
1183 |
// find inner class info
|
|
1184 |
typeArrayHandle icls(thread, k->inner_classes());
|
|
1185 |
constantPoolHandle cp(thread, k->constants());
|
|
1186 |
int length = icls->length();
|
|
1187 |
|
|
1188 |
// Allocate temp. result array
|
|
1189 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::class_klass(), length/4, CHECK_NULL);
|
|
1190 |
objArrayHandle result (THREAD, r);
|
|
1191 |
int members = 0;
|
|
1192 |
|
|
1193 |
for(int i = 0; i < length; i += 4) {
|
|
1194 |
int ioff = icls->ushort_at(i + inner_class_info_index);
|
|
1195 |
int ooff = icls->ushort_at(i + outer_class_info_index);
|
|
1196 |
|
|
1197 |
if (ioff != 0 && ooff != 0) {
|
|
1198 |
// Check to see if the name matches the class we're looking for
|
|
1199 |
// before attempting to find the class.
|
|
1200 |
if (cp->klass_name_at_matches(k, ooff)) {
|
|
1201 |
klassOop outer_klass = cp->klass_at(ooff, CHECK_NULL);
|
|
1202 |
if (outer_klass == k()) {
|
|
1203 |
klassOop ik = cp->klass_at(ioff, CHECK_NULL);
|
|
1204 |
instanceKlassHandle inner_klass (THREAD, ik);
|
|
1205 |
|
|
1206 |
// Throws an exception if outer klass has not declared k as
|
|
1207 |
// an inner klass
|
|
1208 |
Reflection::check_for_inner_class(k, inner_klass, CHECK_NULL);
|
|
1209 |
|
|
1210 |
result->obj_at_put(members, inner_klass->java_mirror());
|
|
1211 |
members++;
|
|
1212 |
}
|
|
1213 |
}
|
|
1214 |
}
|
|
1215 |
}
|
|
1216 |
|
|
1217 |
if (members != length) {
|
|
1218 |
// Return array of right length
|
|
1219 |
objArrayOop res = oopFactory::new_objArray(SystemDictionary::class_klass(), members, CHECK_NULL);
|
|
1220 |
for(int i = 0; i < members; i++) {
|
|
1221 |
res->obj_at_put(i, result->obj_at(i));
|
|
1222 |
}
|
|
1223 |
return (jobjectArray)JNIHandles::make_local(env, res);
|
|
1224 |
}
|
|
1225 |
|
|
1226 |
return (jobjectArray)JNIHandles::make_local(env, result());
|
|
1227 |
JVM_END
|
|
1228 |
|
|
1229 |
|
|
1230 |
JVM_ENTRY(jclass, JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass))
|
|
1231 |
const int inner_class_info_index = 0;
|
|
1232 |
const int outer_class_info_index = 1;
|
|
1233 |
|
|
1234 |
// ofClass is a reference to a java_lang_Class object.
|
|
1235 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass)) ||
|
|
1236 |
! Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_instance()) {
|
|
1237 |
return NULL;
|
|
1238 |
}
|
|
1239 |
|
|
1240 |
instanceKlassHandle k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
|
|
1241 |
|
|
1242 |
if (k->inner_classes()->length() == 0) {
|
|
1243 |
// No inner class info => no declaring class
|
|
1244 |
return NULL;
|
|
1245 |
}
|
|
1246 |
|
|
1247 |
typeArrayHandle i_icls(thread, k->inner_classes());
|
|
1248 |
constantPoolHandle i_cp(thread, k->constants());
|
|
1249 |
int i_length = i_icls->length();
|
|
1250 |
|
|
1251 |
bool found = false;
|
|
1252 |
klassOop ok;
|
|
1253 |
instanceKlassHandle outer_klass;
|
|
1254 |
|
|
1255 |
// Find inner_klass attribute
|
|
1256 |
for(int i = 0; i < i_length && !found; i+= 4) {
|
|
1257 |
int ioff = i_icls->ushort_at(i + inner_class_info_index);
|
|
1258 |
int ooff = i_icls->ushort_at(i + outer_class_info_index);
|
|
1259 |
|
|
1260 |
if (ioff != 0 && ooff != 0) {
|
|
1261 |
// Check to see if the name matches the class we're looking for
|
|
1262 |
// before attempting to find the class.
|
|
1263 |
if (i_cp->klass_name_at_matches(k, ioff)) {
|
|
1264 |
klassOop inner_klass = i_cp->klass_at(ioff, CHECK_NULL);
|
|
1265 |
if (k() == inner_klass) {
|
|
1266 |
found = true;
|
|
1267 |
ok = i_cp->klass_at(ooff, CHECK_NULL);
|
|
1268 |
outer_klass = instanceKlassHandle(thread, ok);
|
|
1269 |
}
|
|
1270 |
}
|
|
1271 |
}
|
|
1272 |
}
|
|
1273 |
|
|
1274 |
// If no inner class attribute found for this class.
|
|
1275 |
if (!found) return NULL;
|
|
1276 |
|
|
1277 |
// Throws an exception if outer klass has not declared k as an inner klass
|
|
1278 |
Reflection::check_for_inner_class(outer_klass, k, CHECK_NULL);
|
|
1279 |
|
|
1280 |
return (jclass)JNIHandles::make_local(env, outer_klass->java_mirror());
|
|
1281 |
JVM_END
|
|
1282 |
|
|
1283 |
|
|
1284 |
JVM_ENTRY(jstring, JVM_GetClassSignature(JNIEnv *env, jclass cls))
|
|
1285 |
assert (cls != NULL, "illegal class");
|
|
1286 |
JVMWrapper("JVM_GetClassSignature");
|
|
1287 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1288 |
ResourceMark rm(THREAD);
|
|
1289 |
// Return null for arrays and primatives
|
|
1290 |
if (!java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
|
|
1291 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
|
|
1292 |
if (Klass::cast(k)->oop_is_instance()) {
|
|
1293 |
symbolHandle sym = symbolHandle(THREAD, instanceKlass::cast(k)->generic_signature());
|
|
1294 |
if (sym.is_null()) return NULL;
|
|
1295 |
Handle str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
|
|
1296 |
return (jstring) JNIHandles::make_local(env, str());
|
|
1297 |
}
|
|
1298 |
}
|
|
1299 |
return NULL;
|
|
1300 |
JVM_END
|
|
1301 |
|
|
1302 |
|
|
1303 |
JVM_ENTRY(jbyteArray, JVM_GetClassAnnotations(JNIEnv *env, jclass cls))
|
|
1304 |
assert (cls != NULL, "illegal class");
|
|
1305 |
JVMWrapper("JVM_GetClassAnnotations");
|
|
1306 |
ResourceMark rm(THREAD);
|
|
1307 |
// Return null for arrays and primitives
|
|
1308 |
if (!java_lang_Class::is_primitive(JNIHandles::resolve(cls))) {
|
|
1309 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve(cls));
|
|
1310 |
if (Klass::cast(k)->oop_is_instance()) {
|
|
1311 |
return (jbyteArray) JNIHandles::make_local(env,
|
|
1312 |
instanceKlass::cast(k)->class_annotations());
|
|
1313 |
}
|
|
1314 |
}
|
|
1315 |
return NULL;
|
|
1316 |
JVM_END
|
|
1317 |
|
|
1318 |
|
|
1319 |
JVM_ENTRY(jbyteArray, JVM_GetFieldAnnotations(JNIEnv *env, jobject field))
|
|
1320 |
assert(field != NULL, "illegal field");
|
|
1321 |
JVMWrapper("JVM_GetFieldAnnotations");
|
|
1322 |
|
|
1323 |
// some of this code was adapted from from jni_FromReflectedField
|
|
1324 |
|
|
1325 |
// field is a handle to a java.lang.reflect.Field object
|
|
1326 |
oop reflected = JNIHandles::resolve_non_null(field);
|
|
1327 |
oop mirror = java_lang_reflect_Field::clazz(reflected);
|
|
1328 |
klassOop k = java_lang_Class::as_klassOop(mirror);
|
|
1329 |
int slot = java_lang_reflect_Field::slot(reflected);
|
|
1330 |
int modifiers = java_lang_reflect_Field::modifiers(reflected);
|
|
1331 |
|
|
1332 |
fieldDescriptor fd;
|
|
1333 |
KlassHandle kh(THREAD, k);
|
|
1334 |
intptr_t offset = instanceKlass::cast(kh())->offset_from_fields(slot);
|
|
1335 |
|
|
1336 |
if (modifiers & JVM_ACC_STATIC) {
|
|
1337 |
// for static fields we only look in the current class
|
|
1338 |
if (!instanceKlass::cast(kh())->find_local_field_from_offset(offset,
|
|
1339 |
true, &fd)) {
|
|
1340 |
assert(false, "cannot find static field");
|
|
1341 |
return NULL; // robustness
|
|
1342 |
}
|
|
1343 |
} else {
|
|
1344 |
// for instance fields we start with the current class and work
|
|
1345 |
// our way up through the superclass chain
|
|
1346 |
if (!instanceKlass::cast(kh())->find_field_from_offset(offset, false,
|
|
1347 |
&fd)) {
|
|
1348 |
assert(false, "cannot find instance field");
|
|
1349 |
return NULL; // robustness
|
|
1350 |
}
|
|
1351 |
}
|
|
1352 |
|
|
1353 |
return (jbyteArray) JNIHandles::make_local(env, fd.annotations());
|
|
1354 |
JVM_END
|
|
1355 |
|
|
1356 |
|
|
1357 |
static methodOop jvm_get_method_common(jobject method, TRAPS) {
|
|
1358 |
// some of this code was adapted from from jni_FromReflectedMethod
|
|
1359 |
|
|
1360 |
oop reflected = JNIHandles::resolve_non_null(method);
|
|
1361 |
oop mirror = NULL;
|
|
1362 |
int slot = 0;
|
|
1363 |
|
|
1364 |
if (reflected->klass() == SystemDictionary::reflect_constructor_klass()) {
|
|
1365 |
mirror = java_lang_reflect_Constructor::clazz(reflected);
|
|
1366 |
slot = java_lang_reflect_Constructor::slot(reflected);
|
|
1367 |
} else {
|
|
1368 |
assert(reflected->klass() == SystemDictionary::reflect_method_klass(),
|
|
1369 |
"wrong type");
|
|
1370 |
mirror = java_lang_reflect_Method::clazz(reflected);
|
|
1371 |
slot = java_lang_reflect_Method::slot(reflected);
|
|
1372 |
}
|
|
1373 |
klassOop k = java_lang_Class::as_klassOop(mirror);
|
|
1374 |
|
|
1375 |
KlassHandle kh(THREAD, k);
|
|
1376 |
methodOop m = instanceKlass::cast(kh())->method_with_idnum(slot);
|
|
1377 |
if (m == NULL) {
|
|
1378 |
assert(false, "cannot find method");
|
|
1379 |
return NULL; // robustness
|
|
1380 |
}
|
|
1381 |
|
|
1382 |
return m;
|
|
1383 |
}
|
|
1384 |
|
|
1385 |
|
|
1386 |
JVM_ENTRY(jbyteArray, JVM_GetMethodAnnotations(JNIEnv *env, jobject method))
|
|
1387 |
JVMWrapper("JVM_GetMethodAnnotations");
|
|
1388 |
|
|
1389 |
// method is a handle to a java.lang.reflect.Method object
|
|
1390 |
methodOop m = jvm_get_method_common(method, CHECK_NULL);
|
|
1391 |
return (jbyteArray) JNIHandles::make_local(env, m->annotations());
|
|
1392 |
JVM_END
|
|
1393 |
|
|
1394 |
|
|
1395 |
JVM_ENTRY(jbyteArray, JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method))
|
|
1396 |
JVMWrapper("JVM_GetMethodDefaultAnnotationValue");
|
|
1397 |
|
|
1398 |
// method is a handle to a java.lang.reflect.Method object
|
|
1399 |
methodOop m = jvm_get_method_common(method, CHECK_NULL);
|
|
1400 |
return (jbyteArray) JNIHandles::make_local(env, m->annotation_default());
|
|
1401 |
JVM_END
|
|
1402 |
|
|
1403 |
|
|
1404 |
JVM_ENTRY(jbyteArray, JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method))
|
|
1405 |
JVMWrapper("JVM_GetMethodParameterAnnotations");
|
|
1406 |
|
|
1407 |
// method is a handle to a java.lang.reflect.Method object
|
|
1408 |
methodOop m = jvm_get_method_common(method, CHECK_NULL);
|
|
1409 |
return (jbyteArray) JNIHandles::make_local(env, m->parameter_annotations());
|
|
1410 |
JVM_END
|
|
1411 |
|
|
1412 |
|
|
1413 |
// New (JDK 1.4) reflection implementation /////////////////////////////////////
|
|
1414 |
|
|
1415 |
JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly))
|
|
1416 |
{
|
|
1417 |
JVMWrapper("JVM_GetClassDeclaredFields");
|
|
1418 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1419 |
|
|
1420 |
// Exclude primitive types and array types
|
|
1421 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass)) ||
|
|
1422 |
Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_javaArray()) {
|
|
1423 |
// Return empty array
|
|
1424 |
oop res = oopFactory::new_objArray(SystemDictionary::reflect_field_klass(), 0, CHECK_NULL);
|
|
1425 |
return (jobjectArray) JNIHandles::make_local(env, res);
|
|
1426 |
}
|
|
1427 |
|
|
1428 |
instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
|
|
1429 |
constantPoolHandle cp(THREAD, k->constants());
|
|
1430 |
|
|
1431 |
// Ensure class is linked
|
|
1432 |
k->link_class(CHECK_NULL);
|
|
1433 |
|
|
1434 |
typeArrayHandle fields(THREAD, k->fields());
|
|
1435 |
int fields_len = fields->length();
|
|
1436 |
|
|
1437 |
// 4496456 We need to filter out java.lang.Throwable.backtrace
|
|
1438 |
bool skip_backtrace = false;
|
|
1439 |
|
|
1440 |
// Allocate result
|
|
1441 |
int num_fields;
|
|
1442 |
|
|
1443 |
if (publicOnly) {
|
|
1444 |
num_fields = 0;
|
|
1445 |
for (int i = 0, j = 0; i < fields_len; i += instanceKlass::next_offset, j++) {
|
|
1446 |
int mods = fields->ushort_at(i + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
|
|
1447 |
if (mods & JVM_ACC_PUBLIC) ++num_fields;
|
|
1448 |
}
|
|
1449 |
} else {
|
|
1450 |
num_fields = fields_len / instanceKlass::next_offset;
|
|
1451 |
|
|
1452 |
if (k() == SystemDictionary::throwable_klass()) {
|
|
1453 |
num_fields--;
|
|
1454 |
skip_backtrace = true;
|
|
1455 |
}
|
|
1456 |
}
|
|
1457 |
|
|
1458 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::reflect_field_klass(), num_fields, CHECK_NULL);
|
|
1459 |
objArrayHandle result (THREAD, r);
|
|
1460 |
|
|
1461 |
int out_idx = 0;
|
|
1462 |
fieldDescriptor fd;
|
|
1463 |
for (int i = 0; i < fields_len; i += instanceKlass::next_offset) {
|
|
1464 |
if (skip_backtrace) {
|
|
1465 |
// 4496456 skip java.lang.Throwable.backtrace
|
|
1466 |
int offset = k->offset_from_fields(i);
|
|
1467 |
if (offset == java_lang_Throwable::get_backtrace_offset()) continue;
|
|
1468 |
}
|
|
1469 |
|
|
1470 |
int mods = fields->ushort_at(i + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
|
|
1471 |
if (!publicOnly || (mods & JVM_ACC_PUBLIC)) {
|
|
1472 |
fd.initialize(k(), i);
|
|
1473 |
oop field = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
|
|
1474 |
result->obj_at_put(out_idx, field);
|
|
1475 |
++out_idx;
|
|
1476 |
}
|
|
1477 |
}
|
|
1478 |
assert(out_idx == num_fields, "just checking");
|
|
1479 |
return (jobjectArray) JNIHandles::make_local(env, result());
|
|
1480 |
}
|
|
1481 |
JVM_END
|
|
1482 |
|
|
1483 |
JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly))
|
|
1484 |
{
|
|
1485 |
JVMWrapper("JVM_GetClassDeclaredMethods");
|
|
1486 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1487 |
|
|
1488 |
// Exclude primitive types and array types
|
|
1489 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass))
|
|
1490 |
|| Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_javaArray()) {
|
|
1491 |
// Return empty array
|
|
1492 |
oop res = oopFactory::new_objArray(SystemDictionary::reflect_method_klass(), 0, CHECK_NULL);
|
|
1493 |
return (jobjectArray) JNIHandles::make_local(env, res);
|
|
1494 |
}
|
|
1495 |
|
|
1496 |
instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
|
|
1497 |
|
|
1498 |
// Ensure class is linked
|
|
1499 |
k->link_class(CHECK_NULL);
|
|
1500 |
|
|
1501 |
objArrayHandle methods (THREAD, k->methods());
|
|
1502 |
int methods_length = methods->length();
|
|
1503 |
int num_methods = 0;
|
|
1504 |
|
|
1505 |
int i;
|
|
1506 |
for (i = 0; i < methods_length; i++) {
|
|
1507 |
methodHandle method(THREAD, (methodOop) methods->obj_at(i));
|
|
1508 |
if (!method->is_initializer()) {
|
|
1509 |
if (!publicOnly || method->is_public()) {
|
|
1510 |
++num_methods;
|
|
1511 |
}
|
|
1512 |
}
|
|
1513 |
}
|
|
1514 |
|
|
1515 |
// Allocate result
|
|
1516 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::reflect_method_klass(), num_methods, CHECK_NULL);
|
|
1517 |
objArrayHandle result (THREAD, r);
|
|
1518 |
|
|
1519 |
int out_idx = 0;
|
|
1520 |
for (i = 0; i < methods_length; i++) {
|
|
1521 |
methodHandle method(THREAD, (methodOop) methods->obj_at(i));
|
|
1522 |
if (!method->is_initializer()) {
|
|
1523 |
if (!publicOnly || method->is_public()) {
|
|
1524 |
oop m = Reflection::new_method(method, UseNewReflection, false, CHECK_NULL);
|
|
1525 |
result->obj_at_put(out_idx, m);
|
|
1526 |
++out_idx;
|
|
1527 |
}
|
|
1528 |
}
|
|
1529 |
}
|
|
1530 |
assert(out_idx == num_methods, "just checking");
|
|
1531 |
return (jobjectArray) JNIHandles::make_local(env, result());
|
|
1532 |
}
|
|
1533 |
JVM_END
|
|
1534 |
|
|
1535 |
JVM_ENTRY(jobjectArray, JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly))
|
|
1536 |
{
|
|
1537 |
JVMWrapper("JVM_GetClassDeclaredConstructors");
|
|
1538 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1539 |
|
|
1540 |
// Exclude primitive types and array types
|
|
1541 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(ofClass))
|
|
1542 |
|| Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)))->oop_is_javaArray()) {
|
|
1543 |
// Return empty array
|
|
1544 |
oop res = oopFactory::new_objArray(SystemDictionary::reflect_constructor_klass(), 0 , CHECK_NULL);
|
|
1545 |
return (jobjectArray) JNIHandles::make_local(env, res);
|
|
1546 |
}
|
|
1547 |
|
|
1548 |
instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
|
|
1549 |
|
|
1550 |
// Ensure class is linked
|
|
1551 |
k->link_class(CHECK_NULL);
|
|
1552 |
|
|
1553 |
objArrayHandle methods (THREAD, k->methods());
|
|
1554 |
int methods_length = methods->length();
|
|
1555 |
int num_constructors = 0;
|
|
1556 |
|
|
1557 |
int i;
|
|
1558 |
for (i = 0; i < methods_length; i++) {
|
|
1559 |
methodHandle method(THREAD, (methodOop) methods->obj_at(i));
|
|
1560 |
if (method->is_initializer() && !method->is_static()) {
|
|
1561 |
if (!publicOnly || method->is_public()) {
|
|
1562 |
++num_constructors;
|
|
1563 |
}
|
|
1564 |
}
|
|
1565 |
}
|
|
1566 |
|
|
1567 |
// Allocate result
|
|
1568 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::reflect_constructor_klass(), num_constructors, CHECK_NULL);
|
|
1569 |
objArrayHandle result(THREAD, r);
|
|
1570 |
|
|
1571 |
int out_idx = 0;
|
|
1572 |
for (i = 0; i < methods_length; i++) {
|
|
1573 |
methodHandle method(THREAD, (methodOop) methods->obj_at(i));
|
|
1574 |
if (method->is_initializer() && !method->is_static()) {
|
|
1575 |
if (!publicOnly || method->is_public()) {
|
|
1576 |
oop m = Reflection::new_constructor(method, CHECK_NULL);
|
|
1577 |
result->obj_at_put(out_idx, m);
|
|
1578 |
++out_idx;
|
|
1579 |
}
|
|
1580 |
}
|
|
1581 |
}
|
|
1582 |
assert(out_idx == num_constructors, "just checking");
|
|
1583 |
return (jobjectArray) JNIHandles::make_local(env, result());
|
|
1584 |
}
|
|
1585 |
JVM_END
|
|
1586 |
|
|
1587 |
JVM_ENTRY(jint, JVM_GetClassAccessFlags(JNIEnv *env, jclass cls))
|
|
1588 |
{
|
|
1589 |
JVMWrapper("JVM_GetClassAccessFlags");
|
|
1590 |
if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
|
|
1591 |
// Primitive type
|
|
1592 |
return JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC;
|
|
1593 |
}
|
|
1594 |
|
|
1595 |
Klass* k = Klass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls)));
|
|
1596 |
return k->access_flags().as_int() & JVM_ACC_WRITTEN_FLAGS;
|
|
1597 |
}
|
|
1598 |
JVM_END
|
|
1599 |
|
|
1600 |
|
|
1601 |
// Constant pool access //////////////////////////////////////////////////////////
|
|
1602 |
|
|
1603 |
JVM_ENTRY(jobject, JVM_GetClassConstantPool(JNIEnv *env, jclass cls))
|
|
1604 |
{
|
|
1605 |
JVMWrapper("JVM_GetClassConstantPool");
|
|
1606 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1607 |
|
|
1608 |
// Return null for primitives and arrays
|
|
1609 |
if (!java_lang_Class::is_primitive(JNIHandles::resolve_non_null(cls))) {
|
|
1610 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1611 |
if (Klass::cast(k)->oop_is_instance()) {
|
|
1612 |
instanceKlassHandle k_h(THREAD, k);
|
|
1613 |
Handle jcp = sun_reflect_ConstantPool::create(CHECK_NULL);
|
|
1614 |
sun_reflect_ConstantPool::set_cp_oop(jcp(), k_h->constants());
|
|
1615 |
return JNIHandles::make_local(jcp());
|
|
1616 |
}
|
|
1617 |
}
|
|
1618 |
return NULL;
|
|
1619 |
}
|
|
1620 |
JVM_END
|
|
1621 |
|
|
1622 |
|
|
1623 |
JVM_ENTRY(jint, JVM_ConstantPoolGetSize(JNIEnv *env, jobject unused, jobject jcpool))
|
|
1624 |
{
|
|
1625 |
JVMWrapper("JVM_ConstantPoolGetSize");
|
|
1626 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1627 |
return cp->length();
|
|
1628 |
}
|
|
1629 |
JVM_END
|
|
1630 |
|
|
1631 |
|
|
1632 |
static void bounds_check(constantPoolHandle cp, jint index, TRAPS) {
|
|
1633 |
if (!cp->is_within_bounds(index)) {
|
|
1634 |
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "Constant pool index out of bounds");
|
|
1635 |
}
|
|
1636 |
}
|
|
1637 |
|
|
1638 |
|
|
1639 |
JVM_ENTRY(jclass, JVM_ConstantPoolGetClassAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1640 |
{
|
|
1641 |
JVMWrapper("JVM_ConstantPoolGetClassAt");
|
|
1642 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1643 |
bounds_check(cp, index, CHECK_NULL);
|
|
1644 |
constantTag tag = cp->tag_at(index);
|
|
1645 |
if (!tag.is_klass() && !tag.is_unresolved_klass()) {
|
|
1646 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1647 |
}
|
|
1648 |
klassOop k = cp->klass_at(index, CHECK_NULL);
|
|
1649 |
return (jclass) JNIHandles::make_local(k->klass_part()->java_mirror());
|
|
1650 |
}
|
|
1651 |
JVM_END
|
|
1652 |
|
|
1653 |
|
|
1654 |
JVM_ENTRY(jclass, JVM_ConstantPoolGetClassAtIfLoaded(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1655 |
{
|
|
1656 |
JVMWrapper("JVM_ConstantPoolGetClassAtIfLoaded");
|
|
1657 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1658 |
bounds_check(cp, index, CHECK_NULL);
|
|
1659 |
constantTag tag = cp->tag_at(index);
|
|
1660 |
if (!tag.is_klass() && !tag.is_unresolved_klass()) {
|
|
1661 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1662 |
}
|
|
1663 |
klassOop k = constantPoolOopDesc::klass_at_if_loaded(cp, index);
|
|
1664 |
if (k == NULL) return NULL;
|
|
1665 |
return (jclass) JNIHandles::make_local(k->klass_part()->java_mirror());
|
|
1666 |
}
|
|
1667 |
JVM_END
|
|
1668 |
|
|
1669 |
static jobject get_method_at_helper(constantPoolHandle cp, jint index, bool force_resolution, TRAPS) {
|
|
1670 |
constantTag tag = cp->tag_at(index);
|
|
1671 |
if (!tag.is_method() && !tag.is_interface_method()) {
|
|
1672 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1673 |
}
|
|
1674 |
int klass_ref = cp->uncached_klass_ref_index_at(index);
|
|
1675 |
klassOop k_o;
|
|
1676 |
if (force_resolution) {
|
|
1677 |
k_o = cp->klass_at(klass_ref, CHECK_NULL);
|
|
1678 |
} else {
|
|
1679 |
k_o = constantPoolOopDesc::klass_at_if_loaded(cp, klass_ref);
|
|
1680 |
if (k_o == NULL) return NULL;
|
|
1681 |
}
|
|
1682 |
instanceKlassHandle k(THREAD, k_o);
|
|
1683 |
symbolOop name = cp->uncached_name_ref_at(index);
|
|
1684 |
symbolOop sig = cp->uncached_signature_ref_at(index);
|
|
1685 |
methodHandle m (THREAD, k->find_method(name, sig));
|
|
1686 |
if (m.is_null()) {
|
|
1687 |
THROW_MSG_0(vmSymbols::java_lang_RuntimeException(), "Unable to look up method in target class");
|
|
1688 |
}
|
|
1689 |
oop method;
|
|
1690 |
if (!m->is_initializer() || m->is_static()) {
|
|
1691 |
method = Reflection::new_method(m, true, true, CHECK_NULL);
|
|
1692 |
} else {
|
|
1693 |
method = Reflection::new_constructor(m, CHECK_NULL);
|
|
1694 |
}
|
|
1695 |
return JNIHandles::make_local(method);
|
|
1696 |
}
|
|
1697 |
|
|
1698 |
JVM_ENTRY(jobject, JVM_ConstantPoolGetMethodAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1699 |
{
|
|
1700 |
JVMWrapper("JVM_ConstantPoolGetMethodAt");
|
|
1701 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1702 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1703 |
bounds_check(cp, index, CHECK_NULL);
|
|
1704 |
jobject res = get_method_at_helper(cp, index, true, CHECK_NULL);
|
|
1705 |
return res;
|
|
1706 |
}
|
|
1707 |
JVM_END
|
|
1708 |
|
|
1709 |
JVM_ENTRY(jobject, JVM_ConstantPoolGetMethodAtIfLoaded(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1710 |
{
|
|
1711 |
JVMWrapper("JVM_ConstantPoolGetMethodAtIfLoaded");
|
|
1712 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1713 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1714 |
bounds_check(cp, index, CHECK_NULL);
|
|
1715 |
jobject res = get_method_at_helper(cp, index, false, CHECK_NULL);
|
|
1716 |
return res;
|
|
1717 |
}
|
|
1718 |
JVM_END
|
|
1719 |
|
|
1720 |
static jobject get_field_at_helper(constantPoolHandle cp, jint index, bool force_resolution, TRAPS) {
|
|
1721 |
constantTag tag = cp->tag_at(index);
|
|
1722 |
if (!tag.is_field()) {
|
|
1723 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1724 |
}
|
|
1725 |
int klass_ref = cp->uncached_klass_ref_index_at(index);
|
|
1726 |
klassOop k_o;
|
|
1727 |
if (force_resolution) {
|
|
1728 |
k_o = cp->klass_at(klass_ref, CHECK_NULL);
|
|
1729 |
} else {
|
|
1730 |
k_o = constantPoolOopDesc::klass_at_if_loaded(cp, klass_ref);
|
|
1731 |
if (k_o == NULL) return NULL;
|
|
1732 |
}
|
|
1733 |
instanceKlassHandle k(THREAD, k_o);
|
|
1734 |
symbolOop name = cp->uncached_name_ref_at(index);
|
|
1735 |
symbolOop sig = cp->uncached_signature_ref_at(index);
|
|
1736 |
fieldDescriptor fd;
|
|
1737 |
klassOop target_klass = k->find_field(name, sig, &fd);
|
|
1738 |
if (target_klass == NULL) {
|
|
1739 |
THROW_MSG_0(vmSymbols::java_lang_RuntimeException(), "Unable to look up field in target class");
|
|
1740 |
}
|
|
1741 |
oop field = Reflection::new_field(&fd, true, CHECK_NULL);
|
|
1742 |
return JNIHandles::make_local(field);
|
|
1743 |
}
|
|
1744 |
|
|
1745 |
JVM_ENTRY(jobject, JVM_ConstantPoolGetFieldAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1746 |
{
|
|
1747 |
JVMWrapper("JVM_ConstantPoolGetFieldAt");
|
|
1748 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1749 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1750 |
bounds_check(cp, index, CHECK_NULL);
|
|
1751 |
jobject res = get_field_at_helper(cp, index, true, CHECK_NULL);
|
|
1752 |
return res;
|
|
1753 |
}
|
|
1754 |
JVM_END
|
|
1755 |
|
|
1756 |
JVM_ENTRY(jobject, JVM_ConstantPoolGetFieldAtIfLoaded(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1757 |
{
|
|
1758 |
JVMWrapper("JVM_ConstantPoolGetFieldAtIfLoaded");
|
|
1759 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1760 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1761 |
bounds_check(cp, index, CHECK_NULL);
|
|
1762 |
jobject res = get_field_at_helper(cp, index, false, CHECK_NULL);
|
|
1763 |
return res;
|
|
1764 |
}
|
|
1765 |
JVM_END
|
|
1766 |
|
|
1767 |
JVM_ENTRY(jobjectArray, JVM_ConstantPoolGetMemberRefInfoAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1768 |
{
|
|
1769 |
JVMWrapper("JVM_ConstantPoolGetMemberRefInfoAt");
|
|
1770 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1771 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1772 |
bounds_check(cp, index, CHECK_NULL);
|
|
1773 |
constantTag tag = cp->tag_at(index);
|
|
1774 |
if (!tag.is_field_or_method()) {
|
|
1775 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1776 |
}
|
|
1777 |
int klass_ref = cp->uncached_klass_ref_index_at(index);
|
|
1778 |
symbolHandle klass_name (THREAD, cp->klass_name_at(klass_ref));
|
|
1779 |
symbolHandle member_name(THREAD, cp->uncached_name_ref_at(index));
|
|
1780 |
symbolHandle member_sig (THREAD, cp->uncached_signature_ref_at(index));
|
|
1781 |
objArrayOop dest_o = oopFactory::new_objArray(SystemDictionary::string_klass(), 3, CHECK_NULL);
|
|
1782 |
objArrayHandle dest(THREAD, dest_o);
|
|
1783 |
Handle str = java_lang_String::create_from_symbol(klass_name, CHECK_NULL);
|
|
1784 |
dest->obj_at_put(0, str());
|
|
1785 |
str = java_lang_String::create_from_symbol(member_name, CHECK_NULL);
|
|
1786 |
dest->obj_at_put(1, str());
|
|
1787 |
str = java_lang_String::create_from_symbol(member_sig, CHECK_NULL);
|
|
1788 |
dest->obj_at_put(2, str());
|
|
1789 |
return (jobjectArray) JNIHandles::make_local(dest());
|
|
1790 |
}
|
|
1791 |
JVM_END
|
|
1792 |
|
|
1793 |
JVM_ENTRY(jint, JVM_ConstantPoolGetIntAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1794 |
{
|
|
1795 |
JVMWrapper("JVM_ConstantPoolGetIntAt");
|
|
1796 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1797 |
bounds_check(cp, index, CHECK_0);
|
|
1798 |
constantTag tag = cp->tag_at(index);
|
|
1799 |
if (!tag.is_int()) {
|
|
1800 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1801 |
}
|
|
1802 |
return cp->int_at(index);
|
|
1803 |
}
|
|
1804 |
JVM_END
|
|
1805 |
|
|
1806 |
JVM_ENTRY(jlong, JVM_ConstantPoolGetLongAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1807 |
{
|
|
1808 |
JVMWrapper("JVM_ConstantPoolGetLongAt");
|
|
1809 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1810 |
bounds_check(cp, index, CHECK_(0L));
|
|
1811 |
constantTag tag = cp->tag_at(index);
|
|
1812 |
if (!tag.is_long()) {
|
|
1813 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1814 |
}
|
|
1815 |
return cp->long_at(index);
|
|
1816 |
}
|
|
1817 |
JVM_END
|
|
1818 |
|
|
1819 |
JVM_ENTRY(jfloat, JVM_ConstantPoolGetFloatAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1820 |
{
|
|
1821 |
JVMWrapper("JVM_ConstantPoolGetFloatAt");
|
|
1822 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1823 |
bounds_check(cp, index, CHECK_(0.0f));
|
|
1824 |
constantTag tag = cp->tag_at(index);
|
|
1825 |
if (!tag.is_float()) {
|
|
1826 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1827 |
}
|
|
1828 |
return cp->float_at(index);
|
|
1829 |
}
|
|
1830 |
JVM_END
|
|
1831 |
|
|
1832 |
JVM_ENTRY(jdouble, JVM_ConstantPoolGetDoubleAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1833 |
{
|
|
1834 |
JVMWrapper("JVM_ConstantPoolGetDoubleAt");
|
|
1835 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1836 |
bounds_check(cp, index, CHECK_(0.0));
|
|
1837 |
constantTag tag = cp->tag_at(index);
|
|
1838 |
if (!tag.is_double()) {
|
|
1839 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1840 |
}
|
|
1841 |
return cp->double_at(index);
|
|
1842 |
}
|
|
1843 |
JVM_END
|
|
1844 |
|
|
1845 |
JVM_ENTRY(jstring, JVM_ConstantPoolGetStringAt(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1846 |
{
|
|
1847 |
JVMWrapper("JVM_ConstantPoolGetStringAt");
|
|
1848 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1849 |
bounds_check(cp, index, CHECK_NULL);
|
|
1850 |
constantTag tag = cp->tag_at(index);
|
|
1851 |
if (!tag.is_string() && !tag.is_unresolved_string()) {
|
|
1852 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1853 |
}
|
|
1854 |
oop str = cp->string_at(index, CHECK_NULL);
|
|
1855 |
return (jstring) JNIHandles::make_local(str);
|
|
1856 |
}
|
|
1857 |
JVM_END
|
|
1858 |
|
|
1859 |
JVM_ENTRY(jstring, JVM_ConstantPoolGetUTF8At(JNIEnv *env, jobject unused, jobject jcpool, jint index))
|
|
1860 |
{
|
|
1861 |
JVMWrapper("JVM_ConstantPoolGetUTF8At");
|
|
1862 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1863 |
constantPoolHandle cp = constantPoolHandle(THREAD, constantPoolOop(JNIHandles::resolve_non_null(jcpool)));
|
|
1864 |
bounds_check(cp, index, CHECK_NULL);
|
|
1865 |
constantTag tag = cp->tag_at(index);
|
|
1866 |
if (!tag.is_symbol()) {
|
|
1867 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Wrong type at constant pool index");
|
|
1868 |
}
|
|
1869 |
symbolOop sym_o = cp->symbol_at(index);
|
|
1870 |
symbolHandle sym(THREAD, sym_o);
|
|
1871 |
Handle str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
|
|
1872 |
return (jstring) JNIHandles::make_local(str());
|
|
1873 |
}
|
|
1874 |
JVM_END
|
|
1875 |
|
|
1876 |
|
|
1877 |
// Assertion support. //////////////////////////////////////////////////////////
|
|
1878 |
|
|
1879 |
JVM_ENTRY(jboolean, JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls))
|
|
1880 |
JVMWrapper("JVM_DesiredAssertionStatus");
|
|
1881 |
assert(cls != NULL, "bad class");
|
|
1882 |
|
|
1883 |
oop r = JNIHandles::resolve(cls);
|
|
1884 |
assert(! java_lang_Class::is_primitive(r), "primitive classes not allowed");
|
|
1885 |
if (java_lang_Class::is_primitive(r)) return false;
|
|
1886 |
|
|
1887 |
klassOop k = java_lang_Class::as_klassOop(r);
|
|
1888 |
assert(Klass::cast(k)->oop_is_instance(), "must be an instance klass");
|
|
1889 |
if (! Klass::cast(k)->oop_is_instance()) return false;
|
|
1890 |
|
|
1891 |
ResourceMark rm(THREAD);
|
|
1892 |
const char* name = Klass::cast(k)->name()->as_C_string();
|
|
1893 |
bool system_class = Klass::cast(k)->class_loader() == NULL;
|
|
1894 |
return JavaAssertions::enabled(name, system_class);
|
|
1895 |
|
|
1896 |
JVM_END
|
|
1897 |
|
|
1898 |
|
|
1899 |
// Return a new AssertionStatusDirectives object with the fields filled in with
|
|
1900 |
// command-line assertion arguments (i.e., -ea, -da).
|
|
1901 |
JVM_ENTRY(jobject, JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused))
|
|
1902 |
JVMWrapper("JVM_AssertionStatusDirectives");
|
|
1903 |
JvmtiVMObjectAllocEventCollector oam;
|
|
1904 |
oop asd = JavaAssertions::createAssertionStatusDirectives(CHECK_NULL);
|
|
1905 |
return JNIHandles::make_local(env, asd);
|
|
1906 |
JVM_END
|
|
1907 |
|
|
1908 |
// Verification ////////////////////////////////////////////////////////////////////////////////
|
|
1909 |
|
|
1910 |
// Reflection for the verifier /////////////////////////////////////////////////////////////////
|
|
1911 |
|
|
1912 |
// RedefineClasses support: bug 6214132 caused verification to fail.
|
|
1913 |
// All functions from this section should call the jvmtiThreadSate function:
|
|
1914 |
// klassOop class_to_verify_considering_redefinition(klassOop klass).
|
|
1915 |
// The function returns a klassOop of the _scratch_class if the verifier
|
|
1916 |
// was invoked in the middle of the class redefinition.
|
|
1917 |
// Otherwise it returns its argument value which is the _the_class klassOop.
|
|
1918 |
// Please, refer to the description in the jvmtiThreadSate.hpp.
|
|
1919 |
|
|
1920 |
JVM_ENTRY(const char*, JVM_GetClassNameUTF(JNIEnv *env, jclass cls))
|
|
1921 |
JVMWrapper("JVM_GetClassNameUTF");
|
|
1922 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1923 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
1924 |
return Klass::cast(k)->name()->as_utf8();
|
|
1925 |
JVM_END
|
|
1926 |
|
|
1927 |
|
|
1928 |
JVM_QUICK_ENTRY(void, JVM_GetClassCPTypes(JNIEnv *env, jclass cls, unsigned char *types))
|
|
1929 |
JVMWrapper("JVM_GetClassCPTypes");
|
|
1930 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1931 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
1932 |
// types will have length zero if this is not an instanceKlass
|
|
1933 |
// (length is determined by call to JVM_GetClassCPEntriesCount)
|
|
1934 |
if (Klass::cast(k)->oop_is_instance()) {
|
|
1935 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
1936 |
for (int index = cp->length() - 1; index >= 0; index--) {
|
|
1937 |
constantTag tag = cp->tag_at(index);
|
|
1938 |
types[index] = (tag.is_unresolved_klass()) ? JVM_CONSTANT_Class :
|
|
1939 |
(tag.is_unresolved_string()) ? JVM_CONSTANT_String : tag.value();
|
|
1940 |
}
|
|
1941 |
}
|
|
1942 |
JVM_END
|
|
1943 |
|
|
1944 |
|
|
1945 |
JVM_QUICK_ENTRY(jint, JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cls))
|
|
1946 |
JVMWrapper("JVM_GetClassCPEntriesCount");
|
|
1947 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1948 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
1949 |
if (!Klass::cast(k)->oop_is_instance())
|
|
1950 |
return 0;
|
|
1951 |
return instanceKlass::cast(k)->constants()->length();
|
|
1952 |
JVM_END
|
|
1953 |
|
|
1954 |
|
|
1955 |
JVM_QUICK_ENTRY(jint, JVM_GetClassFieldsCount(JNIEnv *env, jclass cls))
|
|
1956 |
JVMWrapper("JVM_GetClassFieldsCount");
|
|
1957 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1958 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
1959 |
if (!Klass::cast(k)->oop_is_instance())
|
|
1960 |
return 0;
|
|
1961 |
return instanceKlass::cast(k)->fields()->length() / instanceKlass::next_offset;
|
|
1962 |
JVM_END
|
|
1963 |
|
|
1964 |
|
|
1965 |
JVM_QUICK_ENTRY(jint, JVM_GetClassMethodsCount(JNIEnv *env, jclass cls))
|
|
1966 |
JVMWrapper("JVM_GetClassMethodsCount");
|
|
1967 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1968 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
1969 |
if (!Klass::cast(k)->oop_is_instance())
|
|
1970 |
return 0;
|
|
1971 |
return instanceKlass::cast(k)->methods()->length();
|
|
1972 |
JVM_END
|
|
1973 |
|
|
1974 |
|
|
1975 |
// The following methods, used for the verifier, are never called with
|
|
1976 |
// array klasses, so a direct cast to instanceKlass is safe.
|
|
1977 |
// Typically, these methods are called in a loop with bounds determined
|
|
1978 |
// by the results of JVM_GetClass{Fields,Methods}Count, which return
|
|
1979 |
// zero for arrays.
|
|
1980 |
JVM_QUICK_ENTRY(void, JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cls, jint method_index, unsigned short *exceptions))
|
|
1981 |
JVMWrapper("JVM_GetMethodIxExceptionIndexes");
|
|
1982 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1983 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
1984 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
1985 |
int length = methodOop(method)->checked_exceptions_length();
|
|
1986 |
if (length > 0) {
|
|
1987 |
CheckedExceptionElement* table= methodOop(method)->checked_exceptions_start();
|
|
1988 |
for (int i = 0; i < length; i++) {
|
|
1989 |
exceptions[i] = table[i].class_cp_index;
|
|
1990 |
}
|
|
1991 |
}
|
|
1992 |
JVM_END
|
|
1993 |
|
|
1994 |
|
|
1995 |
JVM_QUICK_ENTRY(jint, JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cls, jint method_index))
|
|
1996 |
JVMWrapper("JVM_GetMethodIxExceptionsCount");
|
|
1997 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
1998 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
1999 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2000 |
return methodOop(method)->checked_exceptions_length();
|
|
2001 |
JVM_END
|
|
2002 |
|
|
2003 |
|
|
2004 |
JVM_QUICK_ENTRY(void, JVM_GetMethodIxByteCode(JNIEnv *env, jclass cls, jint method_index, unsigned char *code))
|
|
2005 |
JVMWrapper("JVM_GetMethodIxByteCode");
|
|
2006 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2007 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2008 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2009 |
memcpy(code, methodOop(method)->code_base(), methodOop(method)->code_size());
|
|
2010 |
JVM_END
|
|
2011 |
|
|
2012 |
|
|
2013 |
JVM_QUICK_ENTRY(jint, JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cls, jint method_index))
|
|
2014 |
JVMWrapper("JVM_GetMethodIxByteCodeLength");
|
|
2015 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2016 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2017 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2018 |
return methodOop(method)->code_size();
|
|
2019 |
JVM_END
|
|
2020 |
|
|
2021 |
|
|
2022 |
JVM_QUICK_ENTRY(void, JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cls, jint method_index, jint entry_index, JVM_ExceptionTableEntryType *entry))
|
|
2023 |
JVMWrapper("JVM_GetMethodIxExceptionTableEntry");
|
|
2024 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2025 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2026 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2027 |
typeArrayOop extable = methodOop(method)->exception_table();
|
|
2028 |
entry->start_pc = extable->int_at(entry_index * 4);
|
|
2029 |
entry->end_pc = extable->int_at(entry_index * 4 + 1);
|
|
2030 |
entry->handler_pc = extable->int_at(entry_index * 4 + 2);
|
|
2031 |
entry->catchType = extable->int_at(entry_index * 4 + 3);
|
|
2032 |
JVM_END
|
|
2033 |
|
|
2034 |
|
|
2035 |
JVM_QUICK_ENTRY(jint, JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cls, int method_index))
|
|
2036 |
JVMWrapper("JVM_GetMethodIxExceptionTableLength");
|
|
2037 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2038 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2039 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2040 |
return methodOop(method)->exception_table()->length() / 4;
|
|
2041 |
JVM_END
|
|
2042 |
|
|
2043 |
|
|
2044 |
JVM_QUICK_ENTRY(jint, JVM_GetMethodIxModifiers(JNIEnv *env, jclass cls, int method_index))
|
|
2045 |
JVMWrapper("JVM_GetMethodIxModifiers");
|
|
2046 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2047 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2048 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2049 |
return methodOop(method)->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
|
|
2050 |
JVM_END
|
|
2051 |
|
|
2052 |
|
|
2053 |
JVM_QUICK_ENTRY(jint, JVM_GetFieldIxModifiers(JNIEnv *env, jclass cls, int field_index))
|
|
2054 |
JVMWrapper("JVM_GetFieldIxModifiers");
|
|
2055 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2056 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2057 |
typeArrayOop fields = instanceKlass::cast(k)->fields();
|
|
2058 |
return fields->ushort_at(field_index * instanceKlass::next_offset + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
|
|
2059 |
JVM_END
|
|
2060 |
|
|
2061 |
|
|
2062 |
JVM_QUICK_ENTRY(jint, JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cls, int method_index))
|
|
2063 |
JVMWrapper("JVM_GetMethodIxLocalsCount");
|
|
2064 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2065 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2066 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2067 |
return methodOop(method)->max_locals();
|
|
2068 |
JVM_END
|
|
2069 |
|
|
2070 |
|
|
2071 |
JVM_QUICK_ENTRY(jint, JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cls, int method_index))
|
|
2072 |
JVMWrapper("JVM_GetMethodIxArgsSize");
|
|
2073 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2074 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2075 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2076 |
return methodOop(method)->size_of_parameters();
|
|
2077 |
JVM_END
|
|
2078 |
|
|
2079 |
|
|
2080 |
JVM_QUICK_ENTRY(jint, JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cls, int method_index))
|
|
2081 |
JVMWrapper("JVM_GetMethodIxMaxStack");
|
|
2082 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2083 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2084 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2085 |
return methodOop(method)->max_stack();
|
|
2086 |
JVM_END
|
|
2087 |
|
|
2088 |
|
|
2089 |
JVM_QUICK_ENTRY(jboolean, JVM_IsConstructorIx(JNIEnv *env, jclass cls, int method_index))
|
|
2090 |
JVMWrapper("JVM_IsConstructorIx");
|
|
2091 |
ResourceMark rm(THREAD);
|
|
2092 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2093 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2094 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2095 |
return methodOop(method)->name() == vmSymbols::object_initializer_name();
|
|
2096 |
JVM_END
|
|
2097 |
|
|
2098 |
|
|
2099 |
JVM_ENTRY(const char*, JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cls, jint method_index))
|
|
2100 |
JVMWrapper("JVM_GetMethodIxIxUTF");
|
|
2101 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2102 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2103 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2104 |
return methodOop(method)->name()->as_utf8();
|
|
2105 |
JVM_END
|
|
2106 |
|
|
2107 |
|
|
2108 |
JVM_ENTRY(const char*, JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cls, jint method_index))
|
|
2109 |
JVMWrapper("JVM_GetMethodIxSignatureUTF");
|
|
2110 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2111 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2112 |
oop method = instanceKlass::cast(k)->methods()->obj_at(method_index);
|
|
2113 |
return methodOop(method)->signature()->as_utf8();
|
|
2114 |
JVM_END
|
|
2115 |
|
|
2116 |
/**
|
|
2117 |
* All of these JVM_GetCP-xxx methods are used by the old verifier to
|
|
2118 |
* read entries in the constant pool. Since the old verifier always
|
|
2119 |
* works on a copy of the code, it will not see any rewriting that
|
|
2120 |
* may possibly occur in the middle of verification. So it is important
|
|
2121 |
* that nothing it calls tries to use the cpCache instead of the raw
|
|
2122 |
* constant pool, so we must use cp->uncached_x methods when appropriate.
|
|
2123 |
*/
|
|
2124 |
JVM_ENTRY(const char*, JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cls, jint cp_index))
|
|
2125 |
JVMWrapper("JVM_GetCPFieldNameUTF");
|
|
2126 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2127 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2128 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2129 |
switch (cp->tag_at(cp_index).value()) {
|
|
2130 |
case JVM_CONSTANT_Fieldref:
|
|
2131 |
return cp->uncached_name_ref_at(cp_index)->as_utf8();
|
|
2132 |
default:
|
|
2133 |
fatal("JVM_GetCPFieldNameUTF: illegal constant");
|
|
2134 |
}
|
|
2135 |
ShouldNotReachHere();
|
|
2136 |
return NULL;
|
|
2137 |
JVM_END
|
|
2138 |
|
|
2139 |
|
|
2140 |
JVM_ENTRY(const char*, JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cls, jint cp_index))
|
|
2141 |
JVMWrapper("JVM_GetCPMethodNameUTF");
|
|
2142 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2143 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2144 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2145 |
switch (cp->tag_at(cp_index).value()) {
|
|
2146 |
case JVM_CONSTANT_InterfaceMethodref:
|
|
2147 |
case JVM_CONSTANT_Methodref:
|
|
2148 |
return cp->uncached_name_ref_at(cp_index)->as_utf8();
|
|
2149 |
default:
|
|
2150 |
fatal("JVM_GetCPMethodNameUTF: illegal constant");
|
|
2151 |
}
|
|
2152 |
ShouldNotReachHere();
|
|
2153 |
return NULL;
|
|
2154 |
JVM_END
|
|
2155 |
|
|
2156 |
|
|
2157 |
JVM_ENTRY(const char*, JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cls, jint cp_index))
|
|
2158 |
JVMWrapper("JVM_GetCPMethodSignatureUTF");
|
|
2159 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2160 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2161 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2162 |
switch (cp->tag_at(cp_index).value()) {
|
|
2163 |
case JVM_CONSTANT_InterfaceMethodref:
|
|
2164 |
case JVM_CONSTANT_Methodref:
|
|
2165 |
return cp->uncached_signature_ref_at(cp_index)->as_utf8();
|
|
2166 |
default:
|
|
2167 |
fatal("JVM_GetCPMethodSignatureUTF: illegal constant");
|
|
2168 |
}
|
|
2169 |
ShouldNotReachHere();
|
|
2170 |
return NULL;
|
|
2171 |
JVM_END
|
|
2172 |
|
|
2173 |
|
|
2174 |
JVM_ENTRY(const char*, JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cls, jint cp_index))
|
|
2175 |
JVMWrapper("JVM_GetCPFieldSignatureUTF");
|
|
2176 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2177 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2178 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2179 |
switch (cp->tag_at(cp_index).value()) {
|
|
2180 |
case JVM_CONSTANT_Fieldref:
|
|
2181 |
return cp->uncached_signature_ref_at(cp_index)->as_utf8();
|
|
2182 |
default:
|
|
2183 |
fatal("JVM_GetCPFieldSignatureUTF: illegal constant");
|
|
2184 |
}
|
|
2185 |
ShouldNotReachHere();
|
|
2186 |
return NULL;
|
|
2187 |
JVM_END
|
|
2188 |
|
|
2189 |
|
|
2190 |
JVM_ENTRY(const char*, JVM_GetCPClassNameUTF(JNIEnv *env, jclass cls, jint cp_index))
|
|
2191 |
JVMWrapper("JVM_GetCPClassNameUTF");
|
|
2192 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2193 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2194 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2195 |
symbolOop classname = cp->klass_name_at(cp_index);
|
|
2196 |
return classname->as_utf8();
|
|
2197 |
JVM_END
|
|
2198 |
|
|
2199 |
|
|
2200 |
JVM_ENTRY(const char*, JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cls, jint cp_index))
|
|
2201 |
JVMWrapper("JVM_GetCPFieldClassNameUTF");
|
|
2202 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2203 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2204 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2205 |
switch (cp->tag_at(cp_index).value()) {
|
|
2206 |
case JVM_CONSTANT_Fieldref: {
|
|
2207 |
int class_index = cp->uncached_klass_ref_index_at(cp_index);
|
|
2208 |
symbolOop classname = cp->klass_name_at(class_index);
|
|
2209 |
return classname->as_utf8();
|
|
2210 |
}
|
|
2211 |
default:
|
|
2212 |
fatal("JVM_GetCPFieldClassNameUTF: illegal constant");
|
|
2213 |
}
|
|
2214 |
ShouldNotReachHere();
|
|
2215 |
return NULL;
|
|
2216 |
JVM_END
|
|
2217 |
|
|
2218 |
|
|
2219 |
JVM_ENTRY(const char*, JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cls, jint cp_index))
|
|
2220 |
JVMWrapper("JVM_GetCPMethodClassNameUTF");
|
|
2221 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2222 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2223 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2224 |
switch (cp->tag_at(cp_index).value()) {
|
|
2225 |
case JVM_CONSTANT_Methodref:
|
|
2226 |
case JVM_CONSTANT_InterfaceMethodref: {
|
|
2227 |
int class_index = cp->uncached_klass_ref_index_at(cp_index);
|
|
2228 |
symbolOop classname = cp->klass_name_at(class_index);
|
|
2229 |
return classname->as_utf8();
|
|
2230 |
}
|
|
2231 |
default:
|
|
2232 |
fatal("JVM_GetCPMethodClassNameUTF: illegal constant");
|
|
2233 |
}
|
|
2234 |
ShouldNotReachHere();
|
|
2235 |
return NULL;
|
|
2236 |
JVM_END
|
|
2237 |
|
|
2238 |
|
|
2239 |
JVM_QUICK_ENTRY(jint, JVM_GetCPFieldModifiers(JNIEnv *env, jclass cls, int cp_index, jclass called_cls))
|
|
2240 |
JVMWrapper("JVM_GetCPFieldModifiers");
|
|
2241 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2242 |
klassOop k_called = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(called_cls));
|
|
2243 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2244 |
k_called = JvmtiThreadState::class_to_verify_considering_redefinition(k_called, thread);
|
|
2245 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2246 |
constantPoolOop cp_called = instanceKlass::cast(k_called)->constants();
|
|
2247 |
switch (cp->tag_at(cp_index).value()) {
|
|
2248 |
case JVM_CONSTANT_Fieldref: {
|
|
2249 |
symbolOop name = cp->uncached_name_ref_at(cp_index);
|
|
2250 |
symbolOop signature = cp->uncached_signature_ref_at(cp_index);
|
|
2251 |
typeArrayOop fields = instanceKlass::cast(k_called)->fields();
|
|
2252 |
int fields_count = fields->length();
|
|
2253 |
for (int i = 0; i < fields_count; i += instanceKlass::next_offset) {
|
|
2254 |
if (cp_called->symbol_at(fields->ushort_at(i + instanceKlass::name_index_offset)) == name &&
|
|
2255 |
cp_called->symbol_at(fields->ushort_at(i + instanceKlass::signature_index_offset)) == signature) {
|
|
2256 |
return fields->ushort_at(i + instanceKlass::access_flags_offset) & JVM_RECOGNIZED_FIELD_MODIFIERS;
|
|
2257 |
}
|
|
2258 |
}
|
|
2259 |
return -1;
|
|
2260 |
}
|
|
2261 |
default:
|
|
2262 |
fatal("JVM_GetCPFieldModifiers: illegal constant");
|
|
2263 |
}
|
|
2264 |
ShouldNotReachHere();
|
|
2265 |
return 0;
|
|
2266 |
JVM_END
|
|
2267 |
|
|
2268 |
|
|
2269 |
JVM_QUICK_ENTRY(jint, JVM_GetCPMethodModifiers(JNIEnv *env, jclass cls, int cp_index, jclass called_cls))
|
|
2270 |
JVMWrapper("JVM_GetCPMethodModifiers");
|
|
2271 |
klassOop k = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls));
|
|
2272 |
klassOop k_called = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(called_cls));
|
|
2273 |
k = JvmtiThreadState::class_to_verify_considering_redefinition(k, thread);
|
|
2274 |
k_called = JvmtiThreadState::class_to_verify_considering_redefinition(k_called, thread);
|
|
2275 |
constantPoolOop cp = instanceKlass::cast(k)->constants();
|
|
2276 |
switch (cp->tag_at(cp_index).value()) {
|
|
2277 |
case JVM_CONSTANT_Methodref:
|
|
2278 |
case JVM_CONSTANT_InterfaceMethodref: {
|
|
2279 |
symbolOop name = cp->uncached_name_ref_at(cp_index);
|
|
2280 |
symbolOop signature = cp->uncached_signature_ref_at(cp_index);
|
|
2281 |
objArrayOop methods = instanceKlass::cast(k_called)->methods();
|
|
2282 |
int methods_count = methods->length();
|
|
2283 |
for (int i = 0; i < methods_count; i++) {
|
|
2284 |
methodOop method = methodOop(methods->obj_at(i));
|
|
2285 |
if (method->name() == name && method->signature() == signature) {
|
|
2286 |
return method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
|
|
2287 |
}
|
|
2288 |
}
|
|
2289 |
return -1;
|
|
2290 |
}
|
|
2291 |
default:
|
|
2292 |
fatal("JVM_GetCPMethodModifiers: illegal constant");
|
|
2293 |
}
|
|
2294 |
ShouldNotReachHere();
|
|
2295 |
return 0;
|
|
2296 |
JVM_END
|
|
2297 |
|
|
2298 |
|
|
2299 |
// Misc //////////////////////////////////////////////////////////////////////////////////////////////
|
|
2300 |
|
|
2301 |
JVM_LEAF(void, JVM_ReleaseUTF(const char *utf))
|
|
2302 |
// So long as UTF8::convert_to_utf8 returns resource strings, we don't have to do anything
|
|
2303 |
JVM_END
|
|
2304 |
|
|
2305 |
|
|
2306 |
JVM_ENTRY(jboolean, JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2))
|
|
2307 |
JVMWrapper("JVM_IsSameClassPackage");
|
|
2308 |
oop class1_mirror = JNIHandles::resolve_non_null(class1);
|
|
2309 |
oop class2_mirror = JNIHandles::resolve_non_null(class2);
|
|
2310 |
klassOop klass1 = java_lang_Class::as_klassOop(class1_mirror);
|
|
2311 |
klassOop klass2 = java_lang_Class::as_klassOop(class2_mirror);
|
|
2312 |
return (jboolean) Reflection::is_same_class_package(klass1, klass2);
|
|
2313 |
JVM_END
|
|
2314 |
|
|
2315 |
|
|
2316 |
// IO functions ////////////////////////////////////////////////////////////////////////////////////////
|
|
2317 |
|
|
2318 |
JVM_LEAF(jint, JVM_Open(const char *fname, jint flags, jint mode))
|
|
2319 |
JVMWrapper2("JVM_Open (%s)", fname);
|
|
2320 |
|
|
2321 |
//%note jvm_r6
|
|
2322 |
int result = hpi::open(fname, flags, mode);
|
|
2323 |
if (result >= 0) {
|
|
2324 |
return result;
|
|
2325 |
} else {
|
|
2326 |
switch(errno) {
|
|
2327 |
case EEXIST:
|
|
2328 |
return JVM_EEXIST;
|
|
2329 |
default:
|
|
2330 |
return -1;
|
|
2331 |
}
|
|
2332 |
}
|
|
2333 |
JVM_END
|
|
2334 |
|
|
2335 |
|
|
2336 |
JVM_LEAF(jint, JVM_Close(jint fd))
|
|
2337 |
JVMWrapper2("JVM_Close (0x%x)", fd);
|
|
2338 |
//%note jvm_r6
|
|
2339 |
return hpi::close(fd);
|
|
2340 |
JVM_END
|
|
2341 |
|
|
2342 |
|
|
2343 |
JVM_LEAF(jint, JVM_Read(jint fd, char *buf, jint nbytes))
|
|
2344 |
JVMWrapper2("JVM_Read (0x%x)", fd);
|
|
2345 |
|
|
2346 |
//%note jvm_r6
|
|
2347 |
return (jint)hpi::read(fd, buf, nbytes);
|
|
2348 |
JVM_END
|
|
2349 |
|
|
2350 |
|
|
2351 |
JVM_LEAF(jint, JVM_Write(jint fd, char *buf, jint nbytes))
|
|
2352 |
JVMWrapper2("JVM_Write (0x%x)", fd);
|
|
2353 |
|
|
2354 |
//%note jvm_r6
|
|
2355 |
return (jint)hpi::write(fd, buf, nbytes);
|
|
2356 |
JVM_END
|
|
2357 |
|
|
2358 |
|
|
2359 |
JVM_LEAF(jint, JVM_Available(jint fd, jlong *pbytes))
|
|
2360 |
JVMWrapper2("JVM_Available (0x%x)", fd);
|
|
2361 |
//%note jvm_r6
|
|
2362 |
return hpi::available(fd, pbytes);
|
|
2363 |
JVM_END
|
|
2364 |
|
|
2365 |
|
|
2366 |
JVM_LEAF(jlong, JVM_Lseek(jint fd, jlong offset, jint whence))
|
|
2367 |
JVMWrapper4("JVM_Lseek (0x%x, %Ld, %d)", fd, offset, whence);
|
|
2368 |
//%note jvm_r6
|
|
2369 |
return hpi::lseek(fd, offset, whence);
|
|
2370 |
JVM_END
|
|
2371 |
|
|
2372 |
|
|
2373 |
JVM_LEAF(jint, JVM_SetLength(jint fd, jlong length))
|
|
2374 |
JVMWrapper3("JVM_SetLength (0x%x, %Ld)", fd, length);
|
|
2375 |
return hpi::ftruncate(fd, length);
|
|
2376 |
JVM_END
|
|
2377 |
|
|
2378 |
|
|
2379 |
JVM_LEAF(jint, JVM_Sync(jint fd))
|
|
2380 |
JVMWrapper2("JVM_Sync (0x%x)", fd);
|
|
2381 |
//%note jvm_r6
|
|
2382 |
return hpi::fsync(fd);
|
|
2383 |
JVM_END
|
|
2384 |
|
|
2385 |
|
|
2386 |
// Printing support //////////////////////////////////////////////////
|
|
2387 |
extern "C" {
|
|
2388 |
|
|
2389 |
int jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args) {
|
|
2390 |
// see bug 4399518, 4417214
|
|
2391 |
if ((intptr_t)count <= 0) return -1;
|
|
2392 |
return vsnprintf(str, count, fmt, args);
|
|
2393 |
}
|
|
2394 |
|
|
2395 |
|
|
2396 |
int jio_snprintf(char *str, size_t count, const char *fmt, ...) {
|
|
2397 |
va_list args;
|
|
2398 |
int len;
|
|
2399 |
va_start(args, fmt);
|
|
2400 |
len = jio_vsnprintf(str, count, fmt, args);
|
|
2401 |
va_end(args);
|
|
2402 |
return len;
|
|
2403 |
}
|
|
2404 |
|
|
2405 |
|
|
2406 |
int jio_fprintf(FILE* f, const char *fmt, ...) {
|
|
2407 |
int len;
|
|
2408 |
va_list args;
|
|
2409 |
va_start(args, fmt);
|
|
2410 |
len = jio_vfprintf(f, fmt, args);
|
|
2411 |
va_end(args);
|
|
2412 |
return len;
|
|
2413 |
}
|
|
2414 |
|
|
2415 |
|
|
2416 |
int jio_vfprintf(FILE* f, const char *fmt, va_list args) {
|
|
2417 |
if (Arguments::vfprintf_hook() != NULL) {
|
|
2418 |
return Arguments::vfprintf_hook()(f, fmt, args);
|
|
2419 |
} else {
|
|
2420 |
return vfprintf(f, fmt, args);
|
|
2421 |
}
|
|
2422 |
}
|
|
2423 |
|
|
2424 |
|
|
2425 |
int jio_printf(const char *fmt, ...) {
|
|
2426 |
int len;
|
|
2427 |
va_list args;
|
|
2428 |
va_start(args, fmt);
|
|
2429 |
len = jio_vfprintf(defaultStream::output_stream(), fmt, args);
|
|
2430 |
va_end(args);
|
|
2431 |
return len;
|
|
2432 |
}
|
|
2433 |
|
|
2434 |
|
|
2435 |
// HotSpot specific jio method
|
|
2436 |
void jio_print(const char* s) {
|
|
2437 |
// Try to make this function as atomic as possible.
|
|
2438 |
if (Arguments::vfprintf_hook() != NULL) {
|
|
2439 |
jio_fprintf(defaultStream::output_stream(), "%s", s);
|
|
2440 |
} else {
|
|
2441 |
::write(defaultStream::output_fd(), s, (int)strlen(s));
|
|
2442 |
}
|
|
2443 |
}
|
|
2444 |
|
|
2445 |
} // Extern C
|
|
2446 |
|
|
2447 |
// java.lang.Thread //////////////////////////////////////////////////////////////////////////////
|
|
2448 |
|
|
2449 |
// In most of the JVM Thread support functions we need to be sure to lock the Threads_lock
|
|
2450 |
// to prevent the target thread from exiting after we have a pointer to the C++ Thread or
|
|
2451 |
// OSThread objects. The exception to this rule is when the target object is the thread
|
|
2452 |
// doing the operation, in which case we know that the thread won't exit until the
|
|
2453 |
// operation is done (all exits being voluntary). There are a few cases where it is
|
|
2454 |
// rather silly to do operations on yourself, like resuming yourself or asking whether
|
|
2455 |
// you are alive. While these can still happen, they are not subject to deadlocks if
|
|
2456 |
// the lock is held while the operation occurs (this is not the case for suspend, for
|
|
2457 |
// instance), and are very unlikely. Because IsAlive needs to be fast and its
|
|
2458 |
// implementation is local to this file, we always lock Threads_lock for that one.
|
|
2459 |
|
|
2460 |
static void thread_entry(JavaThread* thread, TRAPS) {
|
|
2461 |
HandleMark hm(THREAD);
|
|
2462 |
Handle obj(THREAD, thread->threadObj());
|
|
2463 |
JavaValue result(T_VOID);
|
|
2464 |
JavaCalls::call_virtual(&result,
|
|
2465 |
obj,
|
|
2466 |
KlassHandle(THREAD, SystemDictionary::thread_klass()),
|
|
2467 |
vmSymbolHandles::run_method_name(),
|
|
2468 |
vmSymbolHandles::void_method_signature(),
|
|
2469 |
THREAD);
|
|
2470 |
}
|
|
2471 |
|
|
2472 |
|
|
2473 |
JVM_ENTRY(void, JVM_StartThread(JNIEnv* env, jobject jthread))
|
|
2474 |
JVMWrapper("JVM_StartThread");
|
|
2475 |
JavaThread *native_thread = NULL;
|
|
2476 |
|
|
2477 |
// We cannot hold the Threads_lock when we throw an exception,
|
|
2478 |
// due to rank ordering issues. Example: we might need to grab the
|
|
2479 |
// Heap_lock while we construct the exception.
|
|
2480 |
bool throw_illegal_thread_state = false;
|
|
2481 |
|
|
2482 |
// We must release the Threads_lock before we can post a jvmti event
|
|
2483 |
// in Thread::start.
|
|
2484 |
{
|
|
2485 |
// Ensure that the C++ Thread and OSThread structures aren't freed before
|
|
2486 |
// we operate.
|
|
2487 |
MutexLocker mu(Threads_lock);
|
|
2488 |
|
|
2489 |
// Check to see if we're running a thread that's already exited or was
|
|
2490 |
// stopped (is_stillborn) or is still active (thread is not NULL).
|
|
2491 |
if (java_lang_Thread::is_stillborn(JNIHandles::resolve_non_null(jthread)) ||
|
|
2492 |
java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread)) != NULL) {
|
|
2493 |
throw_illegal_thread_state = true;
|
|
2494 |
} else {
|
|
2495 |
jlong size =
|
|
2496 |
java_lang_Thread::stackSize(JNIHandles::resolve_non_null(jthread));
|
|
2497 |
// Allocate the C++ Thread structure and create the native thread. The
|
|
2498 |
// stack size retrieved from java is signed, but the constructor takes
|
|
2499 |
// size_t (an unsigned type), so avoid passing negative values which would
|
|
2500 |
// result in really large stacks.
|
|
2501 |
size_t sz = size > 0 ? (size_t) size : 0;
|
|
2502 |
native_thread = new JavaThread(&thread_entry, sz);
|
|
2503 |
|
|
2504 |
// At this point it may be possible that no osthread was created for the
|
|
2505 |
// JavaThread due to lack of memory. Check for this situation and throw
|
|
2506 |
// an exception if necessary. Eventually we may want to change this so
|
|
2507 |
// that we only grab the lock if the thread was created successfully -
|
|
2508 |
// then we can also do this check and throw the exception in the
|
|
2509 |
// JavaThread constructor.
|
|
2510 |
if (native_thread->osthread() != NULL) {
|
|
2511 |
// Note: the current thread is not being used within "prepare".
|
|
2512 |
native_thread->prepare(jthread);
|
|
2513 |
}
|
|
2514 |
}
|
|
2515 |
}
|
|
2516 |
|
|
2517 |
if (throw_illegal_thread_state) {
|
|
2518 |
THROW(vmSymbols::java_lang_IllegalThreadStateException());
|
|
2519 |
}
|
|
2520 |
|
|
2521 |
assert(native_thread != NULL, "Starting null thread?");
|
|
2522 |
|
|
2523 |
if (native_thread->osthread() == NULL) {
|
|
2524 |
// No one should hold a reference to the 'native_thread'.
|
|
2525 |
delete native_thread;
|
|
2526 |
if (JvmtiExport::should_post_resource_exhausted()) {
|
|
2527 |
JvmtiExport::post_resource_exhausted(
|
|
2528 |
JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR | JVMTI_RESOURCE_EXHAUSTED_THREADS,
|
|
2529 |
"unable to create new native thread");
|
|
2530 |
}
|
|
2531 |
THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(),
|
|
2532 |
"unable to create new native thread");
|
|
2533 |
}
|
|
2534 |
|
|
2535 |
Thread::start(native_thread);
|
|
2536 |
|
|
2537 |
JVM_END
|
|
2538 |
|
|
2539 |
// JVM_Stop is implemented using a VM_Operation, so threads are forced to safepoints
|
|
2540 |
// before the quasi-asynchronous exception is delivered. This is a little obtrusive,
|
|
2541 |
// but is thought to be reliable and simple. In the case, where the receiver is the
|
|
2542 |
// save thread as the sender, no safepoint is needed.
|
|
2543 |
JVM_ENTRY(void, JVM_StopThread(JNIEnv* env, jobject jthread, jobject throwable))
|
|
2544 |
JVMWrapper("JVM_StopThread");
|
|
2545 |
|
|
2546 |
oop java_throwable = JNIHandles::resolve(throwable);
|
|
2547 |
if (java_throwable == NULL) {
|
|
2548 |
THROW(vmSymbols::java_lang_NullPointerException());
|
|
2549 |
}
|
|
2550 |
oop java_thread = JNIHandles::resolve_non_null(jthread);
|
|
2551 |
JavaThread* receiver = java_lang_Thread::thread(java_thread);
|
|
2552 |
Events::log("JVM_StopThread thread JavaThread " INTPTR_FORMAT " as oop " INTPTR_FORMAT " [exception " INTPTR_FORMAT "]", receiver, (address)java_thread, throwable);
|
|
2553 |
// First check if thread already exited
|
|
2554 |
if (receiver != NULL) {
|
|
2555 |
// Check if exception is getting thrown at self (use oop equality, since the
|
|
2556 |
// target object might exit)
|
|
2557 |
if (java_thread == thread->threadObj()) {
|
|
2558 |
// This is a change from JDK 1.1, but JDK 1.2 will also do it:
|
|
2559 |
// NOTE (from JDK 1.2): this is done solely to prevent stopped
|
|
2560 |
// threads from being restarted.
|
|
2561 |
// Fix for 4314342, 4145910, perhaps others: it now doesn't have
|
|
2562 |
// any effect on the "liveness" of a thread; see
|
|
2563 |
// JVM_IsThreadAlive, below.
|
|
2564 |
if (java_throwable->is_a(SystemDictionary::threaddeath_klass())) {
|
|
2565 |
java_lang_Thread::set_stillborn(java_thread);
|
|
2566 |
}
|
|
2567 |
THROW_OOP(java_throwable);
|
|
2568 |
} else {
|
|
2569 |
// Enques a VM_Operation to stop all threads and then deliver the exception...
|
|
2570 |
Thread::send_async_exception(java_thread, JNIHandles::resolve(throwable));
|
|
2571 |
}
|
|
2572 |
}
|
|
2573 |
JVM_END
|
|
2574 |
|
|
2575 |
|
|
2576 |
JVM_ENTRY(jboolean, JVM_IsThreadAlive(JNIEnv* env, jobject jthread))
|
|
2577 |
JVMWrapper("JVM_IsThreadAlive");
|
|
2578 |
|
|
2579 |
oop thread_oop = JNIHandles::resolve_non_null(jthread);
|
|
2580 |
return java_lang_Thread::is_alive(thread_oop);
|
|
2581 |
JVM_END
|
|
2582 |
|
|
2583 |
|
|
2584 |
JVM_ENTRY(void, JVM_SuspendThread(JNIEnv* env, jobject jthread))
|
|
2585 |
JVMWrapper("JVM_SuspendThread");
|
|
2586 |
oop java_thread = JNIHandles::resolve_non_null(jthread);
|
|
2587 |
JavaThread* receiver = java_lang_Thread::thread(java_thread);
|
|
2588 |
|
|
2589 |
if (receiver != NULL) {
|
|
2590 |
// thread has run and has not exited (still on threads list)
|
|
2591 |
|
|
2592 |
{
|
|
2593 |
MutexLockerEx ml(receiver->SR_lock(), Mutex::_no_safepoint_check_flag);
|
|
2594 |
if (receiver->is_external_suspend()) {
|
|
2595 |
// Don't allow nested external suspend requests. We can't return
|
|
2596 |
// an error from this interface so just ignore the problem.
|
|
2597 |
return;
|
|
2598 |
}
|
|
2599 |
if (receiver->is_exiting()) { // thread is in the process of exiting
|
|
2600 |
return;
|
|
2601 |
}
|
|
2602 |
receiver->set_external_suspend();
|
|
2603 |
}
|
|
2604 |
|
|
2605 |
// java_suspend() will catch threads in the process of exiting
|
|
2606 |
// and will ignore them.
|
|
2607 |
receiver->java_suspend();
|
|
2608 |
|
|
2609 |
// It would be nice to have the following assertion in all the
|
|
2610 |
// time, but it is possible for a racing resume request to have
|
|
2611 |
// resumed this thread right after we suspended it. Temporarily
|
|
2612 |
// enable this assertion if you are chasing a different kind of
|
|
2613 |
// bug.
|
|
2614 |
//
|
|
2615 |
// assert(java_lang_Thread::thread(receiver->threadObj()) == NULL ||
|
|
2616 |
// receiver->is_being_ext_suspended(), "thread is not suspended");
|
|
2617 |
}
|
|
2618 |
JVM_END
|
|
2619 |
|
|
2620 |
|
|
2621 |
JVM_ENTRY(void, JVM_ResumeThread(JNIEnv* env, jobject jthread))
|
|
2622 |
JVMWrapper("JVM_ResumeThread");
|
|
2623 |
// Ensure that the C++ Thread and OSThread structures aren't freed before we operate.
|
|
2624 |
// We need to *always* get the threads lock here, since this operation cannot be allowed during
|
|
2625 |
// a safepoint. The safepoint code relies on suspending a thread to examine its state. If other
|
|
2626 |
// threads randomly resumes threads, then a thread might not be suspended when the safepoint code
|
|
2627 |
// looks at it.
|
|
2628 |
MutexLocker ml(Threads_lock);
|
|
2629 |
JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
|
|
2630 |
if (thr != NULL) {
|
|
2631 |
// the thread has run and is not in the process of exiting
|
|
2632 |
thr->java_resume();
|
|
2633 |
}
|
|
2634 |
JVM_END
|
|
2635 |
|
|
2636 |
|
|
2637 |
JVM_ENTRY(void, JVM_SetThreadPriority(JNIEnv* env, jobject jthread, jint prio))
|
|
2638 |
JVMWrapper("JVM_SetThreadPriority");
|
|
2639 |
// Ensure that the C++ Thread and OSThread structures aren't freed before we operate
|
|
2640 |
MutexLocker ml(Threads_lock);
|
|
2641 |
oop java_thread = JNIHandles::resolve_non_null(jthread);
|
|
2642 |
java_lang_Thread::set_priority(java_thread, (ThreadPriority)prio);
|
|
2643 |
JavaThread* thr = java_lang_Thread::thread(java_thread);
|
|
2644 |
if (thr != NULL) { // Thread not yet started; priority pushed down when it is
|
|
2645 |
Thread::set_priority(thr, (ThreadPriority)prio);
|
|
2646 |
}
|
|
2647 |
JVM_END
|
|
2648 |
|
|
2649 |
|
|
2650 |
JVM_ENTRY(void, JVM_Yield(JNIEnv *env, jclass threadClass))
|
|
2651 |
JVMWrapper("JVM_Yield");
|
|
2652 |
if (os::dont_yield()) return;
|
|
2653 |
// When ConvertYieldToSleep is off (default), this matches the classic VM use of yield.
|
|
2654 |
// Critical for similar threading behaviour
|
|
2655 |
if (ConvertYieldToSleep) {
|
|
2656 |
os::sleep(thread, MinSleepInterval, false);
|
|
2657 |
} else {
|
|
2658 |
os::yield();
|
|
2659 |
}
|
|
2660 |
JVM_END
|
|
2661 |
|
|
2662 |
|
|
2663 |
JVM_ENTRY(void, JVM_Sleep(JNIEnv* env, jclass threadClass, jlong millis))
|
|
2664 |
JVMWrapper("JVM_Sleep");
|
|
2665 |
|
|
2666 |
if (millis < 0) {
|
|
2667 |
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "timeout value is negative");
|
|
2668 |
}
|
|
2669 |
|
|
2670 |
if (Thread::is_interrupted (THREAD, true) && !HAS_PENDING_EXCEPTION) {
|
|
2671 |
THROW_MSG(vmSymbols::java_lang_InterruptedException(), "sleep interrupted");
|
|
2672 |
}
|
|
2673 |
|
|
2674 |
// Save current thread state and restore it at the end of this block.
|
|
2675 |
// And set new thread state to SLEEPING.
|
|
2676 |
JavaThreadSleepState jtss(thread);
|
|
2677 |
|
|
2678 |
if (millis == 0) {
|
|
2679 |
// When ConvertSleepToYield is on, this matches the classic VM implementation of
|
|
2680 |
// JVM_Sleep. Critical for similar threading behaviour (Win32)
|
|
2681 |
// It appears that in certain GUI contexts, it may be beneficial to do a short sleep
|
|
2682 |
// for SOLARIS
|
|
2683 |
if (ConvertSleepToYield) {
|
|
2684 |
os::yield();
|
|
2685 |
} else {
|
|
2686 |
ThreadState old_state = thread->osthread()->get_state();
|
|
2687 |
thread->osthread()->set_state(SLEEPING);
|
|
2688 |
os::sleep(thread, MinSleepInterval, false);
|
|
2689 |
thread->osthread()->set_state(old_state);
|
|
2690 |
}
|
|
2691 |
} else {
|
|
2692 |
ThreadState old_state = thread->osthread()->get_state();
|
|
2693 |
thread->osthread()->set_state(SLEEPING);
|
|
2694 |
if (os::sleep(thread, millis, true) == OS_INTRPT) {
|
|
2695 |
// An asynchronous exception (e.g., ThreadDeathException) could have been thrown on
|
|
2696 |
// us while we were sleeping. We do not overwrite those.
|
|
2697 |
if (!HAS_PENDING_EXCEPTION) {
|
|
2698 |
// TODO-FIXME: THROW_MSG returns which means we will not call set_state()
|
|
2699 |
// to properly restore the thread state. That's likely wrong.
|
|
2700 |
THROW_MSG(vmSymbols::java_lang_InterruptedException(), "sleep interrupted");
|
|
2701 |
}
|
|
2702 |
}
|
|
2703 |
thread->osthread()->set_state(old_state);
|
|
2704 |
}
|
|
2705 |
JVM_END
|
|
2706 |
|
|
2707 |
JVM_ENTRY(jobject, JVM_CurrentThread(JNIEnv* env, jclass threadClass))
|
|
2708 |
JVMWrapper("JVM_CurrentThread");
|
|
2709 |
oop jthread = thread->threadObj();
|
|
2710 |
assert (thread != NULL, "no current thread!");
|
|
2711 |
return JNIHandles::make_local(env, jthread);
|
|
2712 |
JVM_END
|
|
2713 |
|
|
2714 |
|
|
2715 |
JVM_ENTRY(jint, JVM_CountStackFrames(JNIEnv* env, jobject jthread))
|
|
2716 |
JVMWrapper("JVM_CountStackFrames");
|
|
2717 |
|
|
2718 |
// Ensure that the C++ Thread and OSThread structures aren't freed before we operate
|
|
2719 |
oop java_thread = JNIHandles::resolve_non_null(jthread);
|
|
2720 |
bool throw_illegal_thread_state = false;
|
|
2721 |
int count = 0;
|
|
2722 |
|
|
2723 |
{
|
|
2724 |
MutexLockerEx ml(thread->threadObj() == java_thread ? NULL : Threads_lock);
|
|
2725 |
// We need to re-resolve the java_thread, since a GC might have happened during the
|
|
2726 |
// acquire of the lock
|
|
2727 |
JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
|
|
2728 |
|
|
2729 |
if (thr == NULL) {
|
|
2730 |
// do nothing
|
|
2731 |
} else if(! thr->is_external_suspend() || ! thr->frame_anchor()->walkable()) {
|
|
2732 |
// Check whether this java thread has been suspended already. If not, throws
|
|
2733 |
// IllegalThreadStateException. We defer to throw that exception until
|
|
2734 |
// Threads_lock is released since loading exception class has to leave VM.
|
|
2735 |
// The correct way to test a thread is actually suspended is
|
|
2736 |
// wait_for_ext_suspend_completion(), but we can't call that while holding
|
|
2737 |
// the Threads_lock. The above tests are sufficient for our purposes
|
|
2738 |
// provided the walkability of the stack is stable - which it isn't
|
|
2739 |
// 100% but close enough for most practical purposes.
|
|
2740 |
throw_illegal_thread_state = true;
|
|
2741 |
} else {
|
|
2742 |
// Count all java activation, i.e., number of vframes
|
|
2743 |
for(vframeStream vfst(thr); !vfst.at_end(); vfst.next()) {
|
|
2744 |
// Native frames are not counted
|
|
2745 |
if (!vfst.method()->is_native()) count++;
|
|
2746 |
}
|
|
2747 |
}
|
|
2748 |
}
|
|
2749 |
|
|
2750 |
if (throw_illegal_thread_state) {
|
|
2751 |
THROW_MSG_0(vmSymbols::java_lang_IllegalThreadStateException(),
|
|
2752 |
"this thread is not suspended");
|
|
2753 |
}
|
|
2754 |
return count;
|
|
2755 |
JVM_END
|
|
2756 |
|
|
2757 |
// Consider: A better way to implement JVM_Interrupt() is to acquire
|
|
2758 |
// Threads_lock to resolve the jthread into a Thread pointer, fetch
|
|
2759 |
// Thread->platformevent, Thread->native_thr, Thread->parker, etc.,
|
|
2760 |
// drop Threads_lock, and the perform the unpark() and thr_kill() operations
|
|
2761 |
// outside the critical section. Threads_lock is hot so we want to minimize
|
|
2762 |
// the hold-time. A cleaner interface would be to decompose interrupt into
|
|
2763 |
// two steps. The 1st phase, performed under Threads_lock, would return
|
|
2764 |
// a closure that'd be invoked after Threads_lock was dropped.
|
|
2765 |
// This tactic is safe as PlatformEvent and Parkers are type-stable (TSM) and
|
|
2766 |
// admit spurious wakeups.
|
|
2767 |
|
|
2768 |
JVM_ENTRY(void, JVM_Interrupt(JNIEnv* env, jobject jthread))
|
|
2769 |
JVMWrapper("JVM_Interrupt");
|
|
2770 |
|
|
2771 |
// Ensure that the C++ Thread and OSThread structures aren't freed before we operate
|
|
2772 |
oop java_thread = JNIHandles::resolve_non_null(jthread);
|
|
2773 |
MutexLockerEx ml(thread->threadObj() == java_thread ? NULL : Threads_lock);
|
|
2774 |
// We need to re-resolve the java_thread, since a GC might have happened during the
|
|
2775 |
// acquire of the lock
|
|
2776 |
JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
|
|
2777 |
if (thr != NULL) {
|
|
2778 |
Thread::interrupt(thr);
|
|
2779 |
}
|
|
2780 |
JVM_END
|
|
2781 |
|
|
2782 |
|
|
2783 |
JVM_QUICK_ENTRY(jboolean, JVM_IsInterrupted(JNIEnv* env, jobject jthread, jboolean clear_interrupted))
|
|
2784 |
JVMWrapper("JVM_IsInterrupted");
|
|
2785 |
|
|
2786 |
// Ensure that the C++ Thread and OSThread structures aren't freed before we operate
|
|
2787 |
oop java_thread = JNIHandles::resolve_non_null(jthread);
|
|
2788 |
MutexLockerEx ml(thread->threadObj() == java_thread ? NULL : Threads_lock);
|
|
2789 |
// We need to re-resolve the java_thread, since a GC might have happened during the
|
|
2790 |
// acquire of the lock
|
|
2791 |
JavaThread* thr = java_lang_Thread::thread(JNIHandles::resolve_non_null(jthread));
|
|
2792 |
if (thr == NULL) {
|
|
2793 |
return JNI_FALSE;
|
|
2794 |
} else {
|
|
2795 |
return (jboolean) Thread::is_interrupted(thr, clear_interrupted != 0);
|
|
2796 |
}
|
|
2797 |
JVM_END
|
|
2798 |
|
|
2799 |
|
|
2800 |
// Return true iff the current thread has locked the object passed in
|
|
2801 |
|
|
2802 |
JVM_ENTRY(jboolean, JVM_HoldsLock(JNIEnv* env, jclass threadClass, jobject obj))
|
|
2803 |
JVMWrapper("JVM_HoldsLock");
|
|
2804 |
assert(THREAD->is_Java_thread(), "sanity check");
|
|
2805 |
if (obj == NULL) {
|
|
2806 |
THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE);
|
|
2807 |
}
|
|
2808 |
Handle h_obj(THREAD, JNIHandles::resolve(obj));
|
|
2809 |
return ObjectSynchronizer::current_thread_holds_lock((JavaThread*)THREAD, h_obj);
|
|
2810 |
JVM_END
|
|
2811 |
|
|
2812 |
|
|
2813 |
JVM_ENTRY(void, JVM_DumpAllStacks(JNIEnv* env, jclass))
|
|
2814 |
JVMWrapper("JVM_DumpAllStacks");
|
|
2815 |
VM_PrintThreads op;
|
|
2816 |
VMThread::execute(&op);
|
|
2817 |
if (JvmtiExport::should_post_data_dump()) {
|
|
2818 |
JvmtiExport::post_data_dump();
|
|
2819 |
}
|
|
2820 |
JVM_END
|
|
2821 |
|
|
2822 |
|
|
2823 |
// java.lang.SecurityManager ///////////////////////////////////////////////////////////////////////
|
|
2824 |
|
|
2825 |
static bool is_trusted_frame(JavaThread* jthread, vframeStream* vfst) {
|
|
2826 |
assert(jthread->is_Java_thread(), "must be a Java thread");
|
|
2827 |
if (jthread->privileged_stack_top() == NULL) return false;
|
|
2828 |
if (jthread->privileged_stack_top()->frame_id() == vfst->frame_id()) {
|
|
2829 |
oop loader = jthread->privileged_stack_top()->class_loader();
|
|
2830 |
if (loader == NULL) return true;
|
|
2831 |
bool trusted = java_lang_ClassLoader::is_trusted_loader(loader);
|
|
2832 |
if (trusted) return true;
|
|
2833 |
}
|
|
2834 |
return false;
|
|
2835 |
}
|
|
2836 |
|
|
2837 |
JVM_ENTRY(jclass, JVM_CurrentLoadedClass(JNIEnv *env))
|
|
2838 |
JVMWrapper("JVM_CurrentLoadedClass");
|
|
2839 |
ResourceMark rm(THREAD);
|
|
2840 |
|
|
2841 |
for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
|
|
2842 |
// if a method in a class in a trusted loader is in a doPrivileged, return NULL
|
|
2843 |
bool trusted = is_trusted_frame(thread, &vfst);
|
|
2844 |
if (trusted) return NULL;
|
|
2845 |
|
|
2846 |
methodOop m = vfst.method();
|
|
2847 |
if (!m->is_native()) {
|
|
2848 |
klassOop holder = m->method_holder();
|
|
2849 |
oop loader = instanceKlass::cast(holder)->class_loader();
|
|
2850 |
if (loader != NULL && !java_lang_ClassLoader::is_trusted_loader(loader)) {
|
|
2851 |
return (jclass) JNIHandles::make_local(env, Klass::cast(holder)->java_mirror());
|
|
2852 |
}
|
|
2853 |
}
|
|
2854 |
}
|
|
2855 |
return NULL;
|
|
2856 |
JVM_END
|
|
2857 |
|
|
2858 |
|
|
2859 |
JVM_ENTRY(jobject, JVM_CurrentClassLoader(JNIEnv *env))
|
|
2860 |
JVMWrapper("JVM_CurrentClassLoader");
|
|
2861 |
ResourceMark rm(THREAD);
|
|
2862 |
|
|
2863 |
for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
|
|
2864 |
|
|
2865 |
// if a method in a class in a trusted loader is in a doPrivileged, return NULL
|
|
2866 |
bool trusted = is_trusted_frame(thread, &vfst);
|
|
2867 |
if (trusted) return NULL;
|
|
2868 |
|
|
2869 |
methodOop m = vfst.method();
|
|
2870 |
if (!m->is_native()) {
|
|
2871 |
klassOop holder = m->method_holder();
|
|
2872 |
assert(holder->is_klass(), "just checking");
|
|
2873 |
oop loader = instanceKlass::cast(holder)->class_loader();
|
|
2874 |
if (loader != NULL && !java_lang_ClassLoader::is_trusted_loader(loader)) {
|
|
2875 |
return JNIHandles::make_local(env, loader);
|
|
2876 |
}
|
|
2877 |
}
|
|
2878 |
}
|
|
2879 |
return NULL;
|
|
2880 |
JVM_END
|
|
2881 |
|
|
2882 |
|
|
2883 |
// Utility object for collecting method holders walking down the stack
|
|
2884 |
class KlassLink: public ResourceObj {
|
|
2885 |
public:
|
|
2886 |
KlassHandle klass;
|
|
2887 |
KlassLink* next;
|
|
2888 |
|
|
2889 |
KlassLink(KlassHandle k) { klass = k; next = NULL; }
|
|
2890 |
};
|
|
2891 |
|
|
2892 |
|
|
2893 |
JVM_ENTRY(jobjectArray, JVM_GetClassContext(JNIEnv *env))
|
|
2894 |
JVMWrapper("JVM_GetClassContext");
|
|
2895 |
ResourceMark rm(THREAD);
|
|
2896 |
JvmtiVMObjectAllocEventCollector oam;
|
|
2897 |
// Collect linked list of (handles to) method holders
|
|
2898 |
KlassLink* first = NULL;
|
|
2899 |
KlassLink* last = NULL;
|
|
2900 |
int depth = 0;
|
|
2901 |
|
|
2902 |
for(vframeStream vfst(thread); !vfst.at_end(); vfst.security_get_caller_frame(1)) {
|
|
2903 |
// Native frames are not returned
|
|
2904 |
if (!vfst.method()->is_native()) {
|
|
2905 |
klassOop holder = vfst.method()->method_holder();
|
|
2906 |
assert(holder->is_klass(), "just checking");
|
|
2907 |
depth++;
|
|
2908 |
KlassLink* l = new KlassLink(KlassHandle(thread, holder));
|
|
2909 |
if (first == NULL) {
|
|
2910 |
first = last = l;
|
|
2911 |
} else {
|
|
2912 |
last->next = l;
|
|
2913 |
last = l;
|
|
2914 |
}
|
|
2915 |
}
|
|
2916 |
}
|
|
2917 |
|
|
2918 |
// Create result array of type [Ljava/lang/Class;
|
|
2919 |
objArrayOop result = oopFactory::new_objArray(SystemDictionary::class_klass(), depth, CHECK_NULL);
|
|
2920 |
// Fill in mirrors corresponding to method holders
|
|
2921 |
int index = 0;
|
|
2922 |
while (first != NULL) {
|
|
2923 |
result->obj_at_put(index++, Klass::cast(first->klass())->java_mirror());
|
|
2924 |
first = first->next;
|
|
2925 |
}
|
|
2926 |
assert(index == depth, "just checking");
|
|
2927 |
|
|
2928 |
return (jobjectArray) JNIHandles::make_local(env, result);
|
|
2929 |
JVM_END
|
|
2930 |
|
|
2931 |
|
|
2932 |
JVM_ENTRY(jint, JVM_ClassDepth(JNIEnv *env, jstring name))
|
|
2933 |
JVMWrapper("JVM_ClassDepth");
|
|
2934 |
ResourceMark rm(THREAD);
|
|
2935 |
Handle h_name (THREAD, JNIHandles::resolve_non_null(name));
|
|
2936 |
Handle class_name_str = java_lang_String::internalize_classname(h_name, CHECK_0);
|
|
2937 |
|
|
2938 |
const char* str = java_lang_String::as_utf8_string(class_name_str());
|
|
2939 |
symbolHandle class_name_sym =
|
|
2940 |
symbolHandle(THREAD, SymbolTable::probe(str, (int)strlen(str)));
|
|
2941 |
if (class_name_sym.is_null()) {
|
|
2942 |
return -1;
|
|
2943 |
}
|
|
2944 |
|
|
2945 |
int depth = 0;
|
|
2946 |
|
|
2947 |
for(vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
|
|
2948 |
if (!vfst.method()->is_native()) {
|
|
2949 |
klassOop holder = vfst.method()->method_holder();
|
|
2950 |
assert(holder->is_klass(), "just checking");
|
|
2951 |
if (instanceKlass::cast(holder)->name() == class_name_sym()) {
|
|
2952 |
return depth;
|
|
2953 |
}
|
|
2954 |
depth++;
|
|
2955 |
}
|
|
2956 |
}
|
|
2957 |
return -1;
|
|
2958 |
JVM_END
|
|
2959 |
|
|
2960 |
|
|
2961 |
JVM_ENTRY(jint, JVM_ClassLoaderDepth(JNIEnv *env))
|
|
2962 |
JVMWrapper("JVM_ClassLoaderDepth");
|
|
2963 |
ResourceMark rm(THREAD);
|
|
2964 |
int depth = 0;
|
|
2965 |
for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
|
|
2966 |
// if a method in a class in a trusted loader is in a doPrivileged, return -1
|
|
2967 |
bool trusted = is_trusted_frame(thread, &vfst);
|
|
2968 |
if (trusted) return -1;
|
|
2969 |
|
|
2970 |
methodOop m = vfst.method();
|
|
2971 |
if (!m->is_native()) {
|
|
2972 |
klassOop holder = m->method_holder();
|
|
2973 |
assert(holder->is_klass(), "just checking");
|
|
2974 |
oop loader = instanceKlass::cast(holder)->class_loader();
|
|
2975 |
if (loader != NULL && !java_lang_ClassLoader::is_trusted_loader(loader)) {
|
|
2976 |
return depth;
|
|
2977 |
}
|
|
2978 |
depth++;
|
|
2979 |
}
|
|
2980 |
}
|
|
2981 |
return -1;
|
|
2982 |
JVM_END
|
|
2983 |
|
|
2984 |
|
|
2985 |
// java.lang.Package ////////////////////////////////////////////////////////////////
|
|
2986 |
|
|
2987 |
|
|
2988 |
JVM_ENTRY(jstring, JVM_GetSystemPackage(JNIEnv *env, jstring name))
|
|
2989 |
JVMWrapper("JVM_GetSystemPackage");
|
|
2990 |
ResourceMark rm(THREAD);
|
|
2991 |
JvmtiVMObjectAllocEventCollector oam;
|
|
2992 |
char* str = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(name));
|
|
2993 |
oop result = ClassLoader::get_system_package(str, CHECK_NULL);
|
|
2994 |
return (jstring) JNIHandles::make_local(result);
|
|
2995 |
JVM_END
|
|
2996 |
|
|
2997 |
|
|
2998 |
JVM_ENTRY(jobjectArray, JVM_GetSystemPackages(JNIEnv *env))
|
|
2999 |
JVMWrapper("JVM_GetSystemPackages");
|
|
3000 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3001 |
objArrayOop result = ClassLoader::get_system_packages(CHECK_NULL);
|
|
3002 |
return (jobjectArray) JNIHandles::make_local(result);
|
|
3003 |
JVM_END
|
|
3004 |
|
|
3005 |
|
|
3006 |
// ObjectInputStream ///////////////////////////////////////////////////////////////
|
|
3007 |
|
|
3008 |
bool force_verify_field_access(klassOop current_class, klassOop field_class, AccessFlags access, bool classloader_only) {
|
|
3009 |
if (current_class == NULL) {
|
|
3010 |
return true;
|
|
3011 |
}
|
|
3012 |
if ((current_class == field_class) || access.is_public()) {
|
|
3013 |
return true;
|
|
3014 |
}
|
|
3015 |
|
|
3016 |
if (access.is_protected()) {
|
|
3017 |
// See if current_class is a subclass of field_class
|
|
3018 |
if (Klass::cast(current_class)->is_subclass_of(field_class)) {
|
|
3019 |
return true;
|
|
3020 |
}
|
|
3021 |
}
|
|
3022 |
|
|
3023 |
return (!access.is_private() && instanceKlass::cast(current_class)->is_same_class_package(field_class));
|
|
3024 |
}
|
|
3025 |
|
|
3026 |
|
|
3027 |
// JVM_AllocateNewObject and JVM_AllocateNewArray are unused as of 1.4
|
|
3028 |
JVM_ENTRY(jobject, JVM_AllocateNewObject(JNIEnv *env, jobject receiver, jclass currClass, jclass initClass))
|
|
3029 |
JVMWrapper("JVM_AllocateNewObject");
|
|
3030 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3031 |
// Receiver is not used
|
|
3032 |
oop curr_mirror = JNIHandles::resolve_non_null(currClass);
|
|
3033 |
oop init_mirror = JNIHandles::resolve_non_null(initClass);
|
|
3034 |
|
|
3035 |
// Cannot instantiate primitive types
|
|
3036 |
if (java_lang_Class::is_primitive(curr_mirror) || java_lang_Class::is_primitive(init_mirror)) {
|
|
3037 |
ResourceMark rm(THREAD);
|
|
3038 |
THROW_0(vmSymbols::java_lang_InvalidClassException());
|
|
3039 |
}
|
|
3040 |
|
|
3041 |
// Arrays not allowed here, must use JVM_AllocateNewArray
|
|
3042 |
if (Klass::cast(java_lang_Class::as_klassOop(curr_mirror))->oop_is_javaArray() ||
|
|
3043 |
Klass::cast(java_lang_Class::as_klassOop(init_mirror))->oop_is_javaArray()) {
|
|
3044 |
ResourceMark rm(THREAD);
|
|
3045 |
THROW_0(vmSymbols::java_lang_InvalidClassException());
|
|
3046 |
}
|
|
3047 |
|
|
3048 |
instanceKlassHandle curr_klass (THREAD, java_lang_Class::as_klassOop(curr_mirror));
|
|
3049 |
instanceKlassHandle init_klass (THREAD, java_lang_Class::as_klassOop(init_mirror));
|
|
3050 |
|
|
3051 |
assert(curr_klass->is_subclass_of(init_klass()), "just checking");
|
|
3052 |
|
|
3053 |
// Interfaces, abstract classes, and java.lang.Class classes cannot be instantiated directly.
|
|
3054 |
curr_klass->check_valid_for_instantiation(false, CHECK_NULL);
|
|
3055 |
|
|
3056 |
// Make sure klass is initialized, since we are about to instantiate one of them.
|
|
3057 |
curr_klass->initialize(CHECK_NULL);
|
|
3058 |
|
|
3059 |
methodHandle m (THREAD,
|
|
3060 |
init_klass->find_method(vmSymbols::object_initializer_name(),
|
|
3061 |
vmSymbols::void_method_signature()));
|
|
3062 |
if (m.is_null()) {
|
|
3063 |
ResourceMark rm(THREAD);
|
|
3064 |
THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(),
|
|
3065 |
methodOopDesc::name_and_sig_as_C_string(Klass::cast(init_klass()),
|
|
3066 |
vmSymbols::object_initializer_name(),
|
|
3067 |
vmSymbols::void_method_signature()));
|
|
3068 |
}
|
|
3069 |
|
|
3070 |
if (curr_klass == init_klass && !m->is_public()) {
|
|
3071 |
// Calling the constructor for class 'curr_klass'.
|
|
3072 |
// Only allow calls to a public no-arg constructor.
|
|
3073 |
// This path corresponds to creating an Externalizable object.
|
|
3074 |
THROW_0(vmSymbols::java_lang_IllegalAccessException());
|
|
3075 |
}
|
|
3076 |
|
|
3077 |
if (!force_verify_field_access(curr_klass(), init_klass(), m->access_flags(), false)) {
|
|
3078 |
// subclass 'curr_klass' does not have access to no-arg constructor of 'initcb'
|
|
3079 |
THROW_0(vmSymbols::java_lang_IllegalAccessException());
|
|
3080 |
}
|
|
3081 |
|
|
3082 |
Handle obj = curr_klass->allocate_instance_handle(CHECK_NULL);
|
|
3083 |
// Call constructor m. This might call a constructor higher up in the hierachy
|
|
3084 |
JavaCalls::call_default_constructor(thread, m, obj, CHECK_NULL);
|
|
3085 |
|
|
3086 |
return JNIHandles::make_local(obj());
|
|
3087 |
JVM_END
|
|
3088 |
|
|
3089 |
|
|
3090 |
JVM_ENTRY(jobject, JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass, jint length))
|
|
3091 |
JVMWrapper("JVM_AllocateNewArray");
|
|
3092 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3093 |
oop mirror = JNIHandles::resolve_non_null(currClass);
|
|
3094 |
|
|
3095 |
if (java_lang_Class::is_primitive(mirror)) {
|
|
3096 |
THROW_0(vmSymbols::java_lang_InvalidClassException());
|
|
3097 |
}
|
|
3098 |
klassOop k = java_lang_Class::as_klassOop(mirror);
|
|
3099 |
oop result;
|
|
3100 |
|
|
3101 |
if (k->klass_part()->oop_is_typeArray()) {
|
|
3102 |
// typeArray
|
|
3103 |
result = typeArrayKlass::cast(k)->allocate(length, CHECK_NULL);
|
|
3104 |
} else if (k->klass_part()->oop_is_objArray()) {
|
|
3105 |
// objArray
|
|
3106 |
objArrayKlassHandle oak(THREAD, k);
|
|
3107 |
oak->initialize(CHECK_NULL); // make sure class is initialized (matches Classic VM behavior)
|
|
3108 |
result = oak->allocate(length, CHECK_NULL);
|
|
3109 |
} else {
|
|
3110 |
THROW_0(vmSymbols::java_lang_InvalidClassException());
|
|
3111 |
}
|
|
3112 |
return JNIHandles::make_local(env, result);
|
|
3113 |
JVM_END
|
|
3114 |
|
|
3115 |
|
|
3116 |
// Return the first non-null class loader up the execution stack, or null
|
|
3117 |
// if only code from the null class loader is on the stack.
|
|
3118 |
|
|
3119 |
JVM_ENTRY(jobject, JVM_LatestUserDefinedLoader(JNIEnv *env))
|
|
3120 |
for (vframeStream vfst(thread); !vfst.at_end(); vfst.next()) {
|
|
3121 |
// UseNewReflection
|
|
3122 |
vfst.skip_reflection_related_frames(); // Only needed for 1.4 reflection
|
|
3123 |
klassOop holder = vfst.method()->method_holder();
|
|
3124 |
oop loader = instanceKlass::cast(holder)->class_loader();
|
|
3125 |
if (loader != NULL) {
|
|
3126 |
return JNIHandles::make_local(env, loader);
|
|
3127 |
}
|
|
3128 |
}
|
|
3129 |
return NULL;
|
|
3130 |
JVM_END
|
|
3131 |
|
|
3132 |
|
|
3133 |
// Load a class relative to the most recent class on the stack with a non-null
|
|
3134 |
// classloader.
|
|
3135 |
// This function has been deprecated and should not be considered part of the
|
|
3136 |
// specified JVM interface.
|
|
3137 |
|
|
3138 |
JVM_ENTRY(jclass, JVM_LoadClass0(JNIEnv *env, jobject receiver,
|
|
3139 |
jclass currClass, jstring currClassName))
|
|
3140 |
JVMWrapper("JVM_LoadClass0");
|
|
3141 |
// Receiver is not used
|
|
3142 |
ResourceMark rm(THREAD);
|
|
3143 |
|
|
3144 |
// Class name argument is not guaranteed to be in internal format
|
|
3145 |
Handle classname (THREAD, JNIHandles::resolve_non_null(currClassName));
|
|
3146 |
Handle string = java_lang_String::internalize_classname(classname, CHECK_NULL);
|
|
3147 |
|
|
3148 |
const char* str = java_lang_String::as_utf8_string(string());
|
|
3149 |
|
|
3150 |
if (str == NULL || (int)strlen(str) > symbolOopDesc::max_length()) {
|
|
3151 |
// It's impossible to create this class; the name cannot fit
|
|
3152 |
// into the constant pool.
|
|
3153 |
THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), str);
|
|
3154 |
}
|
|
3155 |
|
|
3156 |
symbolHandle name = oopFactory::new_symbol_handle(str, CHECK_NULL);
|
|
3157 |
Handle curr_klass (THREAD, JNIHandles::resolve(currClass));
|
|
3158 |
// Find the most recent class on the stack with a non-null classloader
|
|
3159 |
oop loader = NULL;
|
|
3160 |
oop protection_domain = NULL;
|
|
3161 |
if (curr_klass.is_null()) {
|
|
3162 |
for (vframeStream vfst(thread);
|
|
3163 |
!vfst.at_end() && loader == NULL;
|
|
3164 |
vfst.next()) {
|
|
3165 |
if (!vfst.method()->is_native()) {
|
|
3166 |
klassOop holder = vfst.method()->method_holder();
|
|
3167 |
loader = instanceKlass::cast(holder)->class_loader();
|
|
3168 |
protection_domain = instanceKlass::cast(holder)->protection_domain();
|
|
3169 |
}
|
|
3170 |
}
|
|
3171 |
} else {
|
|
3172 |
klassOop curr_klass_oop = java_lang_Class::as_klassOop(curr_klass());
|
|
3173 |
loader = instanceKlass::cast(curr_klass_oop)->class_loader();
|
|
3174 |
protection_domain = instanceKlass::cast(curr_klass_oop)->protection_domain();
|
|
3175 |
}
|
|
3176 |
Handle h_loader(THREAD, loader);
|
|
3177 |
Handle h_prot (THREAD, protection_domain);
|
|
3178 |
return find_class_from_class_loader(env, name, true, h_loader, h_prot,
|
|
3179 |
false, thread);
|
|
3180 |
JVM_END
|
|
3181 |
|
|
3182 |
|
|
3183 |
// Array ///////////////////////////////////////////////////////////////////////////////////////////
|
|
3184 |
|
|
3185 |
|
|
3186 |
// resolve array handle and check arguments
|
|
3187 |
static inline arrayOop check_array(JNIEnv *env, jobject arr, bool type_array_only, TRAPS) {
|
|
3188 |
if (arr == NULL) {
|
|
3189 |
THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
3190 |
}
|
|
3191 |
oop a = JNIHandles::resolve_non_null(arr);
|
|
3192 |
if (!a->is_javaArray() || (type_array_only && !a->is_typeArray())) {
|
|
3193 |
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Argument is not an array");
|
|
3194 |
}
|
|
3195 |
return arrayOop(a);
|
|
3196 |
}
|
|
3197 |
|
|
3198 |
|
|
3199 |
JVM_ENTRY(jint, JVM_GetArrayLength(JNIEnv *env, jobject arr))
|
|
3200 |
JVMWrapper("JVM_GetArrayLength");
|
|
3201 |
arrayOop a = check_array(env, arr, false, CHECK_0);
|
|
3202 |
return a->length();
|
|
3203 |
JVM_END
|
|
3204 |
|
|
3205 |
|
|
3206 |
JVM_ENTRY(jobject, JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index))
|
|
3207 |
JVMWrapper("JVM_Array_Get");
|
|
3208 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3209 |
arrayOop a = check_array(env, arr, false, CHECK_NULL);
|
|
3210 |
jvalue value;
|
|
3211 |
BasicType type = Reflection::array_get(&value, a, index, CHECK_NULL);
|
|
3212 |
oop box = Reflection::box(&value, type, CHECK_NULL);
|
|
3213 |
return JNIHandles::make_local(env, box);
|
|
3214 |
JVM_END
|
|
3215 |
|
|
3216 |
|
|
3217 |
JVM_ENTRY(jvalue, JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode))
|
|
3218 |
JVMWrapper("JVM_GetPrimitiveArrayElement");
|
|
3219 |
jvalue value;
|
|
3220 |
value.i = 0; // to initialize value before getting used in CHECK
|
|
3221 |
arrayOop a = check_array(env, arr, true, CHECK_(value));
|
|
3222 |
assert(a->is_typeArray(), "just checking");
|
|
3223 |
BasicType type = Reflection::array_get(&value, a, index, CHECK_(value));
|
|
3224 |
BasicType wide_type = (BasicType) wCode;
|
|
3225 |
if (type != wide_type) {
|
|
3226 |
Reflection::widen(&value, type, wide_type, CHECK_(value));
|
|
3227 |
}
|
|
3228 |
return value;
|
|
3229 |
JVM_END
|
|
3230 |
|
|
3231 |
|
|
3232 |
JVM_ENTRY(void, JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val))
|
|
3233 |
JVMWrapper("JVM_SetArrayElement");
|
|
3234 |
arrayOop a = check_array(env, arr, false, CHECK);
|
|
3235 |
oop box = JNIHandles::resolve(val);
|
|
3236 |
jvalue value;
|
|
3237 |
value.i = 0; // to initialize value before getting used in CHECK
|
|
3238 |
BasicType value_type;
|
|
3239 |
if (a->is_objArray()) {
|
|
3240 |
// Make sure we do no unbox e.g. java/lang/Integer instances when storing into an object array
|
|
3241 |
value_type = Reflection::unbox_for_regular_object(box, &value);
|
|
3242 |
} else {
|
|
3243 |
value_type = Reflection::unbox_for_primitive(box, &value, CHECK);
|
|
3244 |
}
|
|
3245 |
Reflection::array_set(&value, a, index, value_type, CHECK);
|
|
3246 |
JVM_END
|
|
3247 |
|
|
3248 |
|
|
3249 |
JVM_ENTRY(void, JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, unsigned char vCode))
|
|
3250 |
JVMWrapper("JVM_SetPrimitiveArrayElement");
|
|
3251 |
arrayOop a = check_array(env, arr, true, CHECK);
|
|
3252 |
assert(a->is_typeArray(), "just checking");
|
|
3253 |
BasicType value_type = (BasicType) vCode;
|
|
3254 |
Reflection::array_set(&v, a, index, value_type, CHECK);
|
|
3255 |
JVM_END
|
|
3256 |
|
|
3257 |
|
|
3258 |
JVM_ENTRY(jobject, JVM_NewArray(JNIEnv *env, jclass eltClass, jint length))
|
|
3259 |
JVMWrapper("JVM_NewArray");
|
|
3260 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3261 |
oop element_mirror = JNIHandles::resolve(eltClass);
|
|
3262 |
oop result = Reflection::reflect_new_array(element_mirror, length, CHECK_NULL);
|
|
3263 |
return JNIHandles::make_local(env, result);
|
|
3264 |
JVM_END
|
|
3265 |
|
|
3266 |
|
|
3267 |
JVM_ENTRY(jobject, JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim))
|
|
3268 |
JVMWrapper("JVM_NewMultiArray");
|
|
3269 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3270 |
arrayOop dim_array = check_array(env, dim, true, CHECK_NULL);
|
|
3271 |
oop element_mirror = JNIHandles::resolve(eltClass);
|
|
3272 |
assert(dim_array->is_typeArray(), "just checking");
|
|
3273 |
oop result = Reflection::reflect_new_multi_array(element_mirror, typeArrayOop(dim_array), CHECK_NULL);
|
|
3274 |
return JNIHandles::make_local(env, result);
|
|
3275 |
JVM_END
|
|
3276 |
|
|
3277 |
|
|
3278 |
// Networking library support ////////////////////////////////////////////////////////////////////
|
|
3279 |
|
|
3280 |
JVM_LEAF(jint, JVM_InitializeSocketLibrary())
|
|
3281 |
JVMWrapper("JVM_InitializeSocketLibrary");
|
|
3282 |
return hpi::initialize_socket_library();
|
|
3283 |
JVM_END
|
|
3284 |
|
|
3285 |
|
|
3286 |
JVM_LEAF(jint, JVM_Socket(jint domain, jint type, jint protocol))
|
|
3287 |
JVMWrapper("JVM_Socket");
|
|
3288 |
return hpi::socket(domain, type, protocol);
|
|
3289 |
JVM_END
|
|
3290 |
|
|
3291 |
|
|
3292 |
JVM_LEAF(jint, JVM_SocketClose(jint fd))
|
|
3293 |
JVMWrapper2("JVM_SocketClose (0x%x)", fd);
|
|
3294 |
//%note jvm_r6
|
|
3295 |
return hpi::socket_close(fd);
|
|
3296 |
JVM_END
|
|
3297 |
|
|
3298 |
|
|
3299 |
JVM_LEAF(jint, JVM_SocketShutdown(jint fd, jint howto))
|
|
3300 |
JVMWrapper2("JVM_SocketShutdown (0x%x)", fd);
|
|
3301 |
//%note jvm_r6
|
|
3302 |
return hpi::socket_shutdown(fd, howto);
|
|
3303 |
JVM_END
|
|
3304 |
|
|
3305 |
|
|
3306 |
JVM_LEAF(jint, JVM_Recv(jint fd, char *buf, jint nBytes, jint flags))
|
|
3307 |
JVMWrapper2("JVM_Recv (0x%x)", fd);
|
|
3308 |
//%note jvm_r6
|
|
3309 |
return hpi::recv(fd, buf, nBytes, flags);
|
|
3310 |
JVM_END
|
|
3311 |
|
|
3312 |
|
|
3313 |
JVM_LEAF(jint, JVM_Send(jint fd, char *buf, jint nBytes, jint flags))
|
|
3314 |
JVMWrapper2("JVM_Send (0x%x)", fd);
|
|
3315 |
//%note jvm_r6
|
|
3316 |
return hpi::send(fd, buf, nBytes, flags);
|
|
3317 |
JVM_END
|
|
3318 |
|
|
3319 |
|
|
3320 |
JVM_LEAF(jint, JVM_Timeout(int fd, long timeout))
|
|
3321 |
JVMWrapper2("JVM_Timeout (0x%x)", fd);
|
|
3322 |
//%note jvm_r6
|
|
3323 |
return hpi::timeout(fd, timeout);
|
|
3324 |
JVM_END
|
|
3325 |
|
|
3326 |
|
|
3327 |
JVM_LEAF(jint, JVM_Listen(jint fd, jint count))
|
|
3328 |
JVMWrapper2("JVM_Listen (0x%x)", fd);
|
|
3329 |
//%note jvm_r6
|
|
3330 |
return hpi::listen(fd, count);
|
|
3331 |
JVM_END
|
|
3332 |
|
|
3333 |
|
|
3334 |
JVM_LEAF(jint, JVM_Connect(jint fd, struct sockaddr *him, jint len))
|
|
3335 |
JVMWrapper2("JVM_Connect (0x%x)", fd);
|
|
3336 |
//%note jvm_r6
|
|
3337 |
return hpi::connect(fd, him, len);
|
|
3338 |
JVM_END
|
|
3339 |
|
|
3340 |
|
|
3341 |
JVM_LEAF(jint, JVM_Bind(jint fd, struct sockaddr *him, jint len))
|
|
3342 |
JVMWrapper2("JVM_Bind (0x%x)", fd);
|
|
3343 |
//%note jvm_r6
|
|
3344 |
return hpi::bind(fd, him, len);
|
|
3345 |
JVM_END
|
|
3346 |
|
|
3347 |
|
|
3348 |
JVM_LEAF(jint, JVM_Accept(jint fd, struct sockaddr *him, jint *len))
|
|
3349 |
JVMWrapper2("JVM_Accept (0x%x)", fd);
|
|
3350 |
//%note jvm_r6
|
|
3351 |
return hpi::accept(fd, him, (int *)len);
|
|
3352 |
JVM_END
|
|
3353 |
|
|
3354 |
|
|
3355 |
JVM_LEAF(jint, JVM_RecvFrom(jint fd, char *buf, int nBytes, int flags, struct sockaddr *from, int *fromlen))
|
|
3356 |
JVMWrapper2("JVM_RecvFrom (0x%x)", fd);
|
|
3357 |
//%note jvm_r6
|
|
3358 |
return hpi::recvfrom(fd, buf, nBytes, flags, from, fromlen);
|
|
3359 |
JVM_END
|
|
3360 |
|
|
3361 |
|
|
3362 |
JVM_LEAF(jint, JVM_GetSockName(jint fd, struct sockaddr *him, int *len))
|
|
3363 |
JVMWrapper2("JVM_GetSockName (0x%x)", fd);
|
|
3364 |
//%note jvm_r6
|
|
3365 |
return hpi::get_sock_name(fd, him, len);
|
|
3366 |
JVM_END
|
|
3367 |
|
|
3368 |
|
|
3369 |
JVM_LEAF(jint, JVM_SendTo(jint fd, char *buf, int len, int flags, struct sockaddr *to, int tolen))
|
|
3370 |
JVMWrapper2("JVM_SendTo (0x%x)", fd);
|
|
3371 |
//%note jvm_r6
|
|
3372 |
return hpi::sendto(fd, buf, len, flags, to, tolen);
|
|
3373 |
JVM_END
|
|
3374 |
|
|
3375 |
|
|
3376 |
JVM_LEAF(jint, JVM_SocketAvailable(jint fd, jint *pbytes))
|
|
3377 |
JVMWrapper2("JVM_SocketAvailable (0x%x)", fd);
|
|
3378 |
//%note jvm_r6
|
|
3379 |
return hpi::socket_available(fd, pbytes);
|
|
3380 |
JVM_END
|
|
3381 |
|
|
3382 |
|
|
3383 |
JVM_LEAF(jint, JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen))
|
|
3384 |
JVMWrapper2("JVM_GetSockOpt (0x%x)", fd);
|
|
3385 |
//%note jvm_r6
|
|
3386 |
return hpi::get_sock_opt(fd, level, optname, optval, optlen);
|
|
3387 |
JVM_END
|
|
3388 |
|
|
3389 |
|
|
3390 |
JVM_LEAF(jint, JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen))
|
|
3391 |
JVMWrapper2("JVM_GetSockOpt (0x%x)", fd);
|
|
3392 |
//%note jvm_r6
|
|
3393 |
return hpi::set_sock_opt(fd, level, optname, optval, optlen);
|
|
3394 |
JVM_END
|
|
3395 |
|
|
3396 |
JVM_LEAF(int, JVM_GetHostName(char* name, int namelen))
|
|
3397 |
JVMWrapper("JVM_GetHostName");
|
|
3398 |
return hpi::get_host_name(name, namelen);
|
|
3399 |
JVM_END
|
|
3400 |
|
|
3401 |
#ifdef _WINDOWS
|
|
3402 |
|
|
3403 |
JVM_LEAF(struct hostent*, JVM_GetHostByAddr(const char* name, int len, int type))
|
|
3404 |
JVMWrapper("JVM_GetHostByAddr");
|
|
3405 |
return hpi::get_host_by_addr(name, len, type);
|
|
3406 |
JVM_END
|
|
3407 |
|
|
3408 |
|
|
3409 |
JVM_LEAF(struct hostent*, JVM_GetHostByName(char* name))
|
|
3410 |
JVMWrapper("JVM_GetHostByName");
|
|
3411 |
return hpi::get_host_by_name(name);
|
|
3412 |
JVM_END
|
|
3413 |
|
|
3414 |
|
|
3415 |
JVM_LEAF(struct protoent*, JVM_GetProtoByName(char* name))
|
|
3416 |
JVMWrapper("JVM_GetProtoByName");
|
|
3417 |
return hpi::get_proto_by_name(name);
|
|
3418 |
JVM_END
|
|
3419 |
|
|
3420 |
#endif
|
|
3421 |
|
|
3422 |
// Library support ///////////////////////////////////////////////////////////////////////////
|
|
3423 |
|
|
3424 |
JVM_ENTRY_NO_ENV(void*, JVM_LoadLibrary(const char* name))
|
|
3425 |
//%note jvm_ct
|
|
3426 |
JVMWrapper2("JVM_LoadLibrary (%s)", name);
|
|
3427 |
char ebuf[1024];
|
|
3428 |
void *load_result;
|
|
3429 |
{
|
|
3430 |
ThreadToNativeFromVM ttnfvm(thread);
|
|
3431 |
load_result = hpi::dll_load(name, ebuf, sizeof ebuf);
|
|
3432 |
}
|
|
3433 |
if (load_result == NULL) {
|
|
3434 |
char msg[1024];
|
|
3435 |
jio_snprintf(msg, sizeof msg, "%s: %s", name, ebuf);
|
|
3436 |
// Since 'ebuf' may contain a string encoded using
|
|
3437 |
// platform encoding scheme, we need to pass
|
|
3438 |
// Exceptions::unsafe_to_utf8 to the new_exception method
|
|
3439 |
// as the last argument. See bug 6367357.
|
|
3440 |
Handle h_exception =
|
|
3441 |
Exceptions::new_exception(thread,
|
|
3442 |
vmSymbols::java_lang_UnsatisfiedLinkError(),
|
|
3443 |
msg, Exceptions::unsafe_to_utf8);
|
|
3444 |
|
|
3445 |
THROW_HANDLE_0(h_exception);
|
|
3446 |
}
|
|
3447 |
return load_result;
|
|
3448 |
JVM_END
|
|
3449 |
|
|
3450 |
|
|
3451 |
JVM_LEAF(void, JVM_UnloadLibrary(void* handle))
|
|
3452 |
JVMWrapper("JVM_UnloadLibrary");
|
|
3453 |
hpi::dll_unload(handle);
|
|
3454 |
JVM_END
|
|
3455 |
|
|
3456 |
|
|
3457 |
JVM_LEAF(void*, JVM_FindLibraryEntry(void* handle, const char* name))
|
|
3458 |
JVMWrapper2("JVM_FindLibraryEntry (%s)", name);
|
|
3459 |
return hpi::dll_lookup(handle, name);
|
|
3460 |
JVM_END
|
|
3461 |
|
|
3462 |
// Floating point support ////////////////////////////////////////////////////////////////////
|
|
3463 |
|
|
3464 |
JVM_LEAF(jboolean, JVM_IsNaN(jdouble a))
|
|
3465 |
JVMWrapper("JVM_IsNaN");
|
|
3466 |
return g_isnan(a);
|
|
3467 |
JVM_END
|
|
3468 |
|
|
3469 |
|
|
3470 |
|
|
3471 |
// JNI version ///////////////////////////////////////////////////////////////////////////////
|
|
3472 |
|
|
3473 |
JVM_LEAF(jboolean, JVM_IsSupportedJNIVersion(jint version))
|
|
3474 |
JVMWrapper2("JVM_IsSupportedJNIVersion (%d)", version);
|
|
3475 |
return Threads::is_supported_jni_version_including_1_1(version);
|
|
3476 |
JVM_END
|
|
3477 |
|
|
3478 |
|
|
3479 |
// String support ///////////////////////////////////////////////////////////////////////////
|
|
3480 |
|
|
3481 |
JVM_ENTRY(jstring, JVM_InternString(JNIEnv *env, jstring str))
|
|
3482 |
JVMWrapper("JVM_InternString");
|
|
3483 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3484 |
if (str == NULL) return NULL;
|
|
3485 |
oop string = JNIHandles::resolve_non_null(str);
|
|
3486 |
oop result = StringTable::intern(string, CHECK_NULL);
|
|
3487 |
return (jstring) JNIHandles::make_local(env, result);
|
|
3488 |
JVM_END
|
|
3489 |
|
|
3490 |
|
|
3491 |
// Raw monitor support //////////////////////////////////////////////////////////////////////
|
|
3492 |
|
|
3493 |
// The lock routine below calls lock_without_safepoint_check in order to get a raw lock
|
|
3494 |
// without interfering with the safepoint mechanism. The routines are not JVM_LEAF because
|
|
3495 |
// they might be called by non-java threads. The JVM_LEAF installs a NoHandleMark check
|
|
3496 |
// that only works with java threads.
|
|
3497 |
|
|
3498 |
|
|
3499 |
JNIEXPORT void* JNICALL JVM_RawMonitorCreate(void) {
|
|
3500 |
VM_Exit::block_if_vm_exited();
|
|
3501 |
JVMWrapper("JVM_RawMonitorCreate");
|
|
3502 |
return new Mutex(Mutex::native, "JVM_RawMonitorCreate");
|
|
3503 |
}
|
|
3504 |
|
|
3505 |
|
|
3506 |
JNIEXPORT void JNICALL JVM_RawMonitorDestroy(void *mon) {
|
|
3507 |
VM_Exit::block_if_vm_exited();
|
|
3508 |
JVMWrapper("JVM_RawMonitorDestroy");
|
|
3509 |
delete ((Mutex*) mon);
|
|
3510 |
}
|
|
3511 |
|
|
3512 |
|
|
3513 |
JNIEXPORT jint JNICALL JVM_RawMonitorEnter(void *mon) {
|
|
3514 |
VM_Exit::block_if_vm_exited();
|
|
3515 |
JVMWrapper("JVM_RawMonitorEnter");
|
|
3516 |
((Mutex*) mon)->jvm_raw_lock();
|
|
3517 |
return 0;
|
|
3518 |
}
|
|
3519 |
|
|
3520 |
|
|
3521 |
JNIEXPORT void JNICALL JVM_RawMonitorExit(void *mon) {
|
|
3522 |
VM_Exit::block_if_vm_exited();
|
|
3523 |
JVMWrapper("JVM_RawMonitorExit");
|
|
3524 |
((Mutex*) mon)->jvm_raw_unlock();
|
|
3525 |
}
|
|
3526 |
|
|
3527 |
|
|
3528 |
// Support for Serialization
|
|
3529 |
|
|
3530 |
typedef jfloat (JNICALL *IntBitsToFloatFn )(JNIEnv* env, jclass cb, jint value);
|
|
3531 |
typedef jdouble (JNICALL *LongBitsToDoubleFn)(JNIEnv* env, jclass cb, jlong value);
|
|
3532 |
typedef jint (JNICALL *FloatToIntBitsFn )(JNIEnv* env, jclass cb, jfloat value);
|
|
3533 |
typedef jlong (JNICALL *DoubleToLongBitsFn)(JNIEnv* env, jclass cb, jdouble value);
|
|
3534 |
|
|
3535 |
static IntBitsToFloatFn int_bits_to_float_fn = NULL;
|
|
3536 |
static LongBitsToDoubleFn long_bits_to_double_fn = NULL;
|
|
3537 |
static FloatToIntBitsFn float_to_int_bits_fn = NULL;
|
|
3538 |
static DoubleToLongBitsFn double_to_long_bits_fn = NULL;
|
|
3539 |
|
|
3540 |
|
|
3541 |
void initialize_converter_functions() {
|
|
3542 |
if (JDK_Version::is_gte_jdk14x_version()) {
|
|
3543 |
// These functions only exist for compatibility with 1.3.1 and earlier
|
|
3544 |
return;
|
|
3545 |
}
|
|
3546 |
|
|
3547 |
// called from universe_post_init()
|
|
3548 |
assert(
|
|
3549 |
int_bits_to_float_fn == NULL &&
|
|
3550 |
long_bits_to_double_fn == NULL &&
|
|
3551 |
float_to_int_bits_fn == NULL &&
|
|
3552 |
double_to_long_bits_fn == NULL ,
|
|
3553 |
"initialization done twice"
|
|
3554 |
);
|
|
3555 |
// initialize
|
|
3556 |
int_bits_to_float_fn = CAST_TO_FN_PTR(IntBitsToFloatFn , NativeLookup::base_library_lookup("java/lang/Float" , "intBitsToFloat" , "(I)F"));
|
|
3557 |
long_bits_to_double_fn = CAST_TO_FN_PTR(LongBitsToDoubleFn, NativeLookup::base_library_lookup("java/lang/Double", "longBitsToDouble", "(J)D"));
|
|
3558 |
float_to_int_bits_fn = CAST_TO_FN_PTR(FloatToIntBitsFn , NativeLookup::base_library_lookup("java/lang/Float" , "floatToIntBits" , "(F)I"));
|
|
3559 |
double_to_long_bits_fn = CAST_TO_FN_PTR(DoubleToLongBitsFn, NativeLookup::base_library_lookup("java/lang/Double", "doubleToLongBits", "(D)J"));
|
|
3560 |
// verify
|
|
3561 |
assert(
|
|
3562 |
int_bits_to_float_fn != NULL &&
|
|
3563 |
long_bits_to_double_fn != NULL &&
|
|
3564 |
float_to_int_bits_fn != NULL &&
|
|
3565 |
double_to_long_bits_fn != NULL ,
|
|
3566 |
"initialization failed"
|
|
3567 |
);
|
|
3568 |
}
|
|
3569 |
|
|
3570 |
|
|
3571 |
// Serialization
|
|
3572 |
JVM_ENTRY(void, JVM_SetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
|
|
3573 |
jlongArray fieldIDs, jcharArray typecodes, jbyteArray data))
|
|
3574 |
assert(!JDK_Version::is_gte_jdk14x_version(), "should only be used in 1.3.1 and earlier");
|
|
3575 |
|
|
3576 |
typeArrayOop tcodes = typeArrayOop(JNIHandles::resolve(typecodes));
|
|
3577 |
typeArrayOop dbuf = typeArrayOop(JNIHandles::resolve(data));
|
|
3578 |
typeArrayOop fids = typeArrayOop(JNIHandles::resolve(fieldIDs));
|
|
3579 |
oop o = JNIHandles::resolve(obj);
|
|
3580 |
|
|
3581 |
if (o == NULL || fids == NULL || dbuf == NULL || tcodes == NULL) {
|
|
3582 |
THROW(vmSymbols::java_lang_NullPointerException());
|
|
3583 |
}
|
|
3584 |
|
|
3585 |
jsize nfids = fids->length();
|
|
3586 |
if (nfids == 0) return;
|
|
3587 |
|
|
3588 |
if (tcodes->length() < nfids) {
|
|
3589 |
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
|
|
3590 |
}
|
|
3591 |
|
|
3592 |
jsize off = 0;
|
|
3593 |
/* loop through fields, setting values */
|
|
3594 |
for (jsize i = 0; i < nfids; i++) {
|
|
3595 |
jfieldID fid = (jfieldID)(intptr_t) fids->long_at(i);
|
|
3596 |
int field_offset;
|
|
3597 |
if (fid != NULL) {
|
|
3598 |
// NULL is a legal value for fid, but retrieving the field offset
|
|
3599 |
// trigger assertion in that case
|
|
3600 |
field_offset = jfieldIDWorkaround::from_instance_jfieldID(o->klass(), fid);
|
|
3601 |
}
|
|
3602 |
|
|
3603 |
switch (tcodes->char_at(i)) {
|
|
3604 |
case 'Z':
|
|
3605 |
if (fid != NULL) {
|
|
3606 |
jboolean val = (dbuf->byte_at(off) != 0) ? JNI_TRUE : JNI_FALSE;
|
|
3607 |
o->bool_field_put(field_offset, val);
|
|
3608 |
}
|
|
3609 |
off++;
|
|
3610 |
break;
|
|
3611 |
|
|
3612 |
case 'B':
|
|
3613 |
if (fid != NULL) {
|
|
3614 |
o->byte_field_put(field_offset, dbuf->byte_at(off));
|
|
3615 |
}
|
|
3616 |
off++;
|
|
3617 |
break;
|
|
3618 |
|
|
3619 |
case 'C':
|
|
3620 |
if (fid != NULL) {
|
|
3621 |
jchar val = ((dbuf->byte_at(off + 0) & 0xFF) << 8)
|
|
3622 |
+ ((dbuf->byte_at(off + 1) & 0xFF) << 0);
|
|
3623 |
o->char_field_put(field_offset, val);
|
|
3624 |
}
|
|
3625 |
off += 2;
|
|
3626 |
break;
|
|
3627 |
|
|
3628 |
case 'S':
|
|
3629 |
if (fid != NULL) {
|
|
3630 |
jshort val = ((dbuf->byte_at(off + 0) & 0xFF) << 8)
|
|
3631 |
+ ((dbuf->byte_at(off + 1) & 0xFF) << 0);
|
|
3632 |
o->short_field_put(field_offset, val);
|
|
3633 |
}
|
|
3634 |
off += 2;
|
|
3635 |
break;
|
|
3636 |
|
|
3637 |
case 'I':
|
|
3638 |
if (fid != NULL) {
|
|
3639 |
jint ival = ((dbuf->byte_at(off + 0) & 0xFF) << 24)
|
|
3640 |
+ ((dbuf->byte_at(off + 1) & 0xFF) << 16)
|
|
3641 |
+ ((dbuf->byte_at(off + 2) & 0xFF) << 8)
|
|
3642 |
+ ((dbuf->byte_at(off + 3) & 0xFF) << 0);
|
|
3643 |
o->int_field_put(field_offset, ival);
|
|
3644 |
}
|
|
3645 |
off += 4;
|
|
3646 |
break;
|
|
3647 |
|
|
3648 |
case 'F':
|
|
3649 |
if (fid != NULL) {
|
|
3650 |
jint ival = ((dbuf->byte_at(off + 0) & 0xFF) << 24)
|
|
3651 |
+ ((dbuf->byte_at(off + 1) & 0xFF) << 16)
|
|
3652 |
+ ((dbuf->byte_at(off + 2) & 0xFF) << 8)
|
|
3653 |
+ ((dbuf->byte_at(off + 3) & 0xFF) << 0);
|
|
3654 |
jfloat fval = (*int_bits_to_float_fn)(env, NULL, ival);
|
|
3655 |
o->float_field_put(field_offset, fval);
|
|
3656 |
}
|
|
3657 |
off += 4;
|
|
3658 |
break;
|
|
3659 |
|
|
3660 |
case 'J':
|
|
3661 |
if (fid != NULL) {
|
|
3662 |
jlong lval = (((jlong) dbuf->byte_at(off + 0) & 0xFF) << 56)
|
|
3663 |
+ (((jlong) dbuf->byte_at(off + 1) & 0xFF) << 48)
|
|
3664 |
+ (((jlong) dbuf->byte_at(off + 2) & 0xFF) << 40)
|
|
3665 |
+ (((jlong) dbuf->byte_at(off + 3) & 0xFF) << 32)
|
|
3666 |
+ (((jlong) dbuf->byte_at(off + 4) & 0xFF) << 24)
|
|
3667 |
+ (((jlong) dbuf->byte_at(off + 5) & 0xFF) << 16)
|
|
3668 |
+ (((jlong) dbuf->byte_at(off + 6) & 0xFF) << 8)
|
|
3669 |
+ (((jlong) dbuf->byte_at(off + 7) & 0xFF) << 0);
|
|
3670 |
o->long_field_put(field_offset, lval);
|
|
3671 |
}
|
|
3672 |
off += 8;
|
|
3673 |
break;
|
|
3674 |
|
|
3675 |
case 'D':
|
|
3676 |
if (fid != NULL) {
|
|
3677 |
jlong lval = (((jlong) dbuf->byte_at(off + 0) & 0xFF) << 56)
|
|
3678 |
+ (((jlong) dbuf->byte_at(off + 1) & 0xFF) << 48)
|
|
3679 |
+ (((jlong) dbuf->byte_at(off + 2) & 0xFF) << 40)
|
|
3680 |
+ (((jlong) dbuf->byte_at(off + 3) & 0xFF) << 32)
|
|
3681 |
+ (((jlong) dbuf->byte_at(off + 4) & 0xFF) << 24)
|
|
3682 |
+ (((jlong) dbuf->byte_at(off + 5) & 0xFF) << 16)
|
|
3683 |
+ (((jlong) dbuf->byte_at(off + 6) & 0xFF) << 8)
|
|
3684 |
+ (((jlong) dbuf->byte_at(off + 7) & 0xFF) << 0);
|
|
3685 |
jdouble dval = (*long_bits_to_double_fn)(env, NULL, lval);
|
|
3686 |
o->double_field_put(field_offset, dval);
|
|
3687 |
}
|
|
3688 |
off += 8;
|
|
3689 |
break;
|
|
3690 |
|
|
3691 |
default:
|
|
3692 |
// Illegal typecode
|
|
3693 |
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "illegal typecode");
|
|
3694 |
}
|
|
3695 |
}
|
|
3696 |
JVM_END
|
|
3697 |
|
|
3698 |
|
|
3699 |
JVM_ENTRY(void, JVM_GetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
|
|
3700 |
jlongArray fieldIDs, jcharArray typecodes, jbyteArray data))
|
|
3701 |
assert(!JDK_Version::is_gte_jdk14x_version(), "should only be used in 1.3.1 and earlier");
|
|
3702 |
|
|
3703 |
typeArrayOop tcodes = typeArrayOop(JNIHandles::resolve(typecodes));
|
|
3704 |
typeArrayOop dbuf = typeArrayOop(JNIHandles::resolve(data));
|
|
3705 |
typeArrayOop fids = typeArrayOop(JNIHandles::resolve(fieldIDs));
|
|
3706 |
oop o = JNIHandles::resolve(obj);
|
|
3707 |
|
|
3708 |
if (o == NULL || fids == NULL || dbuf == NULL || tcodes == NULL) {
|
|
3709 |
THROW(vmSymbols::java_lang_NullPointerException());
|
|
3710 |
}
|
|
3711 |
|
|
3712 |
jsize nfids = fids->length();
|
|
3713 |
if (nfids == 0) return;
|
|
3714 |
|
|
3715 |
if (tcodes->length() < nfids) {
|
|
3716 |
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
|
|
3717 |
}
|
|
3718 |
|
|
3719 |
/* loop through fields, fetching values */
|
|
3720 |
jsize off = 0;
|
|
3721 |
for (jsize i = 0; i < nfids; i++) {
|
|
3722 |
jfieldID fid = (jfieldID)(intptr_t) fids->long_at(i);
|
|
3723 |
if (fid == NULL) {
|
|
3724 |
THROW(vmSymbols::java_lang_NullPointerException());
|
|
3725 |
}
|
|
3726 |
int field_offset = jfieldIDWorkaround::from_instance_jfieldID(o->klass(), fid);
|
|
3727 |
|
|
3728 |
switch (tcodes->char_at(i)) {
|
|
3729 |
case 'Z':
|
|
3730 |
{
|
|
3731 |
jboolean val = o->bool_field(field_offset);
|
|
3732 |
dbuf->byte_at_put(off++, (val != 0) ? 1 : 0);
|
|
3733 |
}
|
|
3734 |
break;
|
|
3735 |
|
|
3736 |
case 'B':
|
|
3737 |
dbuf->byte_at_put(off++, o->byte_field(field_offset));
|
|
3738 |
break;
|
|
3739 |
|
|
3740 |
case 'C':
|
|
3741 |
{
|
|
3742 |
jchar val = o->char_field(field_offset);
|
|
3743 |
dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
|
|
3744 |
dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
|
|
3745 |
}
|
|
3746 |
break;
|
|
3747 |
|
|
3748 |
case 'S':
|
|
3749 |
{
|
|
3750 |
jshort val = o->short_field(field_offset);
|
|
3751 |
dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
|
|
3752 |
dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
|
|
3753 |
}
|
|
3754 |
break;
|
|
3755 |
|
|
3756 |
case 'I':
|
|
3757 |
{
|
|
3758 |
jint val = o->int_field(field_offset);
|
|
3759 |
dbuf->byte_at_put(off++, (val >> 24) & 0xFF);
|
|
3760 |
dbuf->byte_at_put(off++, (val >> 16) & 0xFF);
|
|
3761 |
dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
|
|
3762 |
dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
|
|
3763 |
}
|
|
3764 |
break;
|
|
3765 |
|
|
3766 |
case 'F':
|
|
3767 |
{
|
|
3768 |
jfloat fval = o->float_field(field_offset);
|
|
3769 |
jint ival = (*float_to_int_bits_fn)(env, NULL, fval);
|
|
3770 |
dbuf->byte_at_put(off++, (ival >> 24) & 0xFF);
|
|
3771 |
dbuf->byte_at_put(off++, (ival >> 16) & 0xFF);
|
|
3772 |
dbuf->byte_at_put(off++, (ival >> 8) & 0xFF);
|
|
3773 |
dbuf->byte_at_put(off++, (ival >> 0) & 0xFF);
|
|
3774 |
}
|
|
3775 |
break;
|
|
3776 |
|
|
3777 |
case 'J':
|
|
3778 |
{
|
|
3779 |
jlong val = o->long_field(field_offset);
|
|
3780 |
dbuf->byte_at_put(off++, (val >> 56) & 0xFF);
|
|
3781 |
dbuf->byte_at_put(off++, (val >> 48) & 0xFF);
|
|
3782 |
dbuf->byte_at_put(off++, (val >> 40) & 0xFF);
|
|
3783 |
dbuf->byte_at_put(off++, (val >> 32) & 0xFF);
|
|
3784 |
dbuf->byte_at_put(off++, (val >> 24) & 0xFF);
|
|
3785 |
dbuf->byte_at_put(off++, (val >> 16) & 0xFF);
|
|
3786 |
dbuf->byte_at_put(off++, (val >> 8) & 0xFF);
|
|
3787 |
dbuf->byte_at_put(off++, (val >> 0) & 0xFF);
|
|
3788 |
}
|
|
3789 |
break;
|
|
3790 |
|
|
3791 |
case 'D':
|
|
3792 |
{
|
|
3793 |
jdouble dval = o->double_field(field_offset);
|
|
3794 |
jlong lval = (*double_to_long_bits_fn)(env, NULL, dval);
|
|
3795 |
dbuf->byte_at_put(off++, (lval >> 56) & 0xFF);
|
|
3796 |
dbuf->byte_at_put(off++, (lval >> 48) & 0xFF);
|
|
3797 |
dbuf->byte_at_put(off++, (lval >> 40) & 0xFF);
|
|
3798 |
dbuf->byte_at_put(off++, (lval >> 32) & 0xFF);
|
|
3799 |
dbuf->byte_at_put(off++, (lval >> 24) & 0xFF);
|
|
3800 |
dbuf->byte_at_put(off++, (lval >> 16) & 0xFF);
|
|
3801 |
dbuf->byte_at_put(off++, (lval >> 8) & 0xFF);
|
|
3802 |
dbuf->byte_at_put(off++, (lval >> 0) & 0xFF);
|
|
3803 |
}
|
|
3804 |
break;
|
|
3805 |
|
|
3806 |
default:
|
|
3807 |
// Illegal typecode
|
|
3808 |
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "illegal typecode");
|
|
3809 |
}
|
|
3810 |
}
|
|
3811 |
JVM_END
|
|
3812 |
|
|
3813 |
|
|
3814 |
// Shared JNI/JVM entry points //////////////////////////////////////////////////////////////
|
|
3815 |
|
|
3816 |
jclass find_class_from_class_loader(JNIEnv* env, symbolHandle name, jboolean init, Handle loader, Handle protection_domain, jboolean throwError, TRAPS) {
|
|
3817 |
// Security Note:
|
|
3818 |
// The Java level wrapper will perform the necessary security check allowing
|
|
3819 |
// us to pass the NULL as the initiating class loader.
|
|
3820 |
klassOop klass = SystemDictionary::resolve_or_fail(name, loader, protection_domain, throwError != 0, CHECK_NULL);
|
|
3821 |
KlassHandle klass_handle(THREAD, klass);
|
|
3822 |
// Check if we should initialize the class
|
|
3823 |
if (init && klass_handle->oop_is_instance()) {
|
|
3824 |
klass_handle->initialize(CHECK_NULL);
|
|
3825 |
}
|
|
3826 |
return (jclass) JNIHandles::make_local(env, klass_handle->java_mirror());
|
|
3827 |
}
|
|
3828 |
|
|
3829 |
|
|
3830 |
// Internal SQE debugging support ///////////////////////////////////////////////////////////
|
|
3831 |
|
|
3832 |
#ifndef PRODUCT
|
|
3833 |
|
|
3834 |
extern "C" {
|
|
3835 |
JNIEXPORT jboolean JNICALL JVM_AccessVMBooleanFlag(const char* name, jboolean* value, jboolean is_get);
|
|
3836 |
JNIEXPORT jboolean JNICALL JVM_AccessVMIntFlag(const char* name, jint* value, jboolean is_get);
|
|
3837 |
JNIEXPORT void JNICALL JVM_VMBreakPoint(JNIEnv *env, jobject obj);
|
|
3838 |
}
|
|
3839 |
|
|
3840 |
JVM_LEAF(jboolean, JVM_AccessVMBooleanFlag(const char* name, jboolean* value, jboolean is_get))
|
|
3841 |
JVMWrapper("JVM_AccessBoolVMFlag");
|
|
3842 |
return is_get ? CommandLineFlags::boolAt((char*) name, (bool*) value) : CommandLineFlags::boolAtPut((char*) name, (bool*) value, INTERNAL);
|
|
3843 |
JVM_END
|
|
3844 |
|
|
3845 |
JVM_LEAF(jboolean, JVM_AccessVMIntFlag(const char* name, jint* value, jboolean is_get))
|
|
3846 |
JVMWrapper("JVM_AccessVMIntFlag");
|
|
3847 |
intx v;
|
|
3848 |
jboolean result = is_get ? CommandLineFlags::intxAt((char*) name, &v) : CommandLineFlags::intxAtPut((char*) name, &v, INTERNAL);
|
|
3849 |
*value = (jint)v;
|
|
3850 |
return result;
|
|
3851 |
JVM_END
|
|
3852 |
|
|
3853 |
|
|
3854 |
JVM_ENTRY(void, JVM_VMBreakPoint(JNIEnv *env, jobject obj))
|
|
3855 |
JVMWrapper("JVM_VMBreakPoint");
|
|
3856 |
oop the_obj = JNIHandles::resolve(obj);
|
|
3857 |
BREAKPOINT;
|
|
3858 |
JVM_END
|
|
3859 |
|
|
3860 |
|
|
3861 |
#endif
|
|
3862 |
|
|
3863 |
|
|
3864 |
//---------------------------------------------------------------------------
|
|
3865 |
//
|
|
3866 |
// Support for old native code-based reflection (pre-JDK 1.4)
|
|
3867 |
// Disabled by default in the product build.
|
|
3868 |
//
|
|
3869 |
// See reflection.hpp for information on SUPPORT_OLD_REFLECTION
|
|
3870 |
//
|
|
3871 |
//---------------------------------------------------------------------------
|
|
3872 |
|
|
3873 |
#ifdef SUPPORT_OLD_REFLECTION
|
|
3874 |
|
|
3875 |
JVM_ENTRY(jobjectArray, JVM_GetClassFields(JNIEnv *env, jclass cls, jint which))
|
|
3876 |
JVMWrapper("JVM_GetClassFields");
|
|
3877 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3878 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
3879 |
objArrayOop result = Reflection::reflect_fields(mirror, which, CHECK_NULL);
|
|
3880 |
return (jobjectArray) JNIHandles::make_local(env, result);
|
|
3881 |
JVM_END
|
|
3882 |
|
|
3883 |
|
|
3884 |
JVM_ENTRY(jobjectArray, JVM_GetClassMethods(JNIEnv *env, jclass cls, jint which))
|
|
3885 |
JVMWrapper("JVM_GetClassMethods");
|
|
3886 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3887 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
3888 |
objArrayOop result = Reflection::reflect_methods(mirror, which, CHECK_NULL);
|
|
3889 |
//%note jvm_r4
|
|
3890 |
return (jobjectArray) JNIHandles::make_local(env, result);
|
|
3891 |
JVM_END
|
|
3892 |
|
|
3893 |
|
|
3894 |
JVM_ENTRY(jobjectArray, JVM_GetClassConstructors(JNIEnv *env, jclass cls, jint which))
|
|
3895 |
JVMWrapper("JVM_GetClassConstructors");
|
|
3896 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3897 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
3898 |
objArrayOop result = Reflection::reflect_constructors(mirror, which, CHECK_NULL);
|
|
3899 |
//%note jvm_r4
|
|
3900 |
return (jobjectArray) JNIHandles::make_local(env, result);
|
|
3901 |
JVM_END
|
|
3902 |
|
|
3903 |
|
|
3904 |
JVM_ENTRY(jobject, JVM_GetClassField(JNIEnv *env, jclass cls, jstring name, jint which))
|
|
3905 |
JVMWrapper("JVM_GetClassField");
|
|
3906 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3907 |
if (name == NULL) return NULL;
|
|
3908 |
Handle str (THREAD, JNIHandles::resolve_non_null(name));
|
|
3909 |
|
|
3910 |
const char* cstr = java_lang_String::as_utf8_string(str());
|
|
3911 |
symbolHandle field_name =
|
|
3912 |
symbolHandle(THREAD, SymbolTable::probe(cstr, (int)strlen(cstr)));
|
|
3913 |
if (field_name.is_null()) {
|
|
3914 |
THROW_0(vmSymbols::java_lang_NoSuchFieldException());
|
|
3915 |
}
|
|
3916 |
|
|
3917 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
3918 |
oop result = Reflection::reflect_field(mirror, field_name(), which, CHECK_NULL);
|
|
3919 |
if (result == NULL) {
|
|
3920 |
THROW_0(vmSymbols::java_lang_NoSuchFieldException());
|
|
3921 |
}
|
|
3922 |
return JNIHandles::make_local(env, result);
|
|
3923 |
JVM_END
|
|
3924 |
|
|
3925 |
|
|
3926 |
JVM_ENTRY(jobject, JVM_GetClassMethod(JNIEnv *env, jclass cls, jstring name, jobjectArray types, jint which))
|
|
3927 |
JVMWrapper("JVM_GetClassMethod");
|
|
3928 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3929 |
if (name == NULL) {
|
|
3930 |
THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
3931 |
}
|
|
3932 |
Handle str (THREAD, JNIHandles::resolve_non_null(name));
|
|
3933 |
|
|
3934 |
const char* cstr = java_lang_String::as_utf8_string(str());
|
|
3935 |
symbolHandle method_name =
|
|
3936 |
symbolHandle(THREAD, SymbolTable::probe(cstr, (int)strlen(cstr)));
|
|
3937 |
if (method_name.is_null()) {
|
|
3938 |
THROW_0(vmSymbols::java_lang_NoSuchMethodException());
|
|
3939 |
}
|
|
3940 |
|
|
3941 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
3942 |
objArrayHandle tarray (THREAD, objArrayOop(JNIHandles::resolve(types)));
|
|
3943 |
oop result = Reflection::reflect_method(mirror, method_name, tarray,
|
|
3944 |
which, CHECK_NULL);
|
|
3945 |
if (result == NULL) {
|
|
3946 |
THROW_0(vmSymbols::java_lang_NoSuchMethodException());
|
|
3947 |
}
|
|
3948 |
return JNIHandles::make_local(env, result);
|
|
3949 |
JVM_END
|
|
3950 |
|
|
3951 |
|
|
3952 |
JVM_ENTRY(jobject, JVM_GetClassConstructor(JNIEnv *env, jclass cls, jobjectArray types, jint which))
|
|
3953 |
JVMWrapper("JVM_GetClassConstructor");
|
|
3954 |
JvmtiVMObjectAllocEventCollector oam;
|
|
3955 |
oop mirror = JNIHandles::resolve_non_null(cls);
|
|
3956 |
objArrayHandle tarray (THREAD, objArrayOop(JNIHandles::resolve(types)));
|
|
3957 |
oop result = Reflection::reflect_constructor(mirror, tarray, which, CHECK_NULL);
|
|
3958 |
if (result == NULL) {
|
|
3959 |
THROW_0(vmSymbols::java_lang_NoSuchMethodException());
|
|
3960 |
}
|
|
3961 |
return (jobject) JNIHandles::make_local(env, result);
|
|
3962 |
JVM_END
|
|
3963 |
|
|
3964 |
|
|
3965 |
// Instantiation ///////////////////////////////////////////////////////////////////////////////
|
|
3966 |
|
|
3967 |
JVM_ENTRY(jobject, JVM_NewInstance(JNIEnv *env, jclass cls))
|
|
3968 |
JVMWrapper("JVM_NewInstance");
|
|
3969 |
Handle mirror(THREAD, JNIHandles::resolve_non_null(cls));
|
|
3970 |
|
|
3971 |
methodOop resolved_constructor = java_lang_Class::resolved_constructor(mirror());
|
|
3972 |
if (resolved_constructor == NULL) {
|
|
3973 |
klassOop k = java_lang_Class::as_klassOop(mirror());
|
|
3974 |
// The java.lang.Class object caches a resolved constructor if all the checks
|
|
3975 |
// below were done successfully and a constructor was found.
|
|
3976 |
|
|
3977 |
// Do class based checks
|
|
3978 |
if (java_lang_Class::is_primitive(mirror())) {
|
|
3979 |
const char* msg = "";
|
|
3980 |
if (mirror == Universe::bool_mirror()) msg = "java/lang/Boolean";
|
|
3981 |
else if (mirror == Universe::char_mirror()) msg = "java/lang/Character";
|
|
3982 |
else if (mirror == Universe::float_mirror()) msg = "java/lang/Float";
|
|
3983 |
else if (mirror == Universe::double_mirror()) msg = "java/lang/Double";
|
|
3984 |
else if (mirror == Universe::byte_mirror()) msg = "java/lang/Byte";
|
|
3985 |
else if (mirror == Universe::short_mirror()) msg = "java/lang/Short";
|
|
3986 |
else if (mirror == Universe::int_mirror()) msg = "java/lang/Integer";
|
|
3987 |
else if (mirror == Universe::long_mirror()) msg = "java/lang/Long";
|
|
3988 |
THROW_MSG_0(vmSymbols::java_lang_NullPointerException(), msg);
|
|
3989 |
}
|
|
3990 |
|
|
3991 |
// Check whether we are allowed to instantiate this class
|
|
3992 |
Klass::cast(k)->check_valid_for_instantiation(false, CHECK_NULL); // Array classes get caught here
|
|
3993 |
instanceKlassHandle klass(THREAD, k);
|
|
3994 |
// Make sure class is initialized (also so all methods are rewritten)
|
|
3995 |
klass->initialize(CHECK_NULL);
|
|
3996 |
|
|
3997 |
// Lookup default constructor
|
|
3998 |
resolved_constructor = klass->find_method(vmSymbols::object_initializer_name(), vmSymbols::void_method_signature());
|
|
3999 |
if (resolved_constructor == NULL) {
|
|
4000 |
ResourceMark rm(THREAD);
|
|
4001 |
THROW_MSG_0(vmSymbols::java_lang_InstantiationException(), klass->external_name());
|
|
4002 |
}
|
|
4003 |
|
|
4004 |
// Cache result in java.lang.Class object. Does not have to be MT safe.
|
|
4005 |
java_lang_Class::set_resolved_constructor(mirror(), resolved_constructor);
|
|
4006 |
}
|
|
4007 |
|
|
4008 |
assert(resolved_constructor != NULL, "sanity check");
|
|
4009 |
methodHandle constructor = methodHandle(THREAD, resolved_constructor);
|
|
4010 |
|
|
4011 |
// We have an initialized instanceKlass with a default constructor
|
|
4012 |
instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls)));
|
|
4013 |
assert(klass->is_initialized() || klass->is_being_initialized(), "sanity check");
|
|
4014 |
|
|
4015 |
// Do security check
|
|
4016 |
klassOop caller_klass = NULL;
|
|
4017 |
if (UsePrivilegedStack) {
|
|
4018 |
caller_klass = thread->security_get_caller_class(2);
|
|
4019 |
|
|
4020 |
if (!Reflection::verify_class_access(caller_klass, klass(), false) ||
|
|
4021 |
!Reflection::verify_field_access(caller_klass,
|
|
4022 |
klass(),
|
|
4023 |
klass(),
|
|
4024 |
constructor->access_flags(),
|
|
4025 |
false,
|
|
4026 |
true)) {
|
|
4027 |
ResourceMark rm(THREAD);
|
|
4028 |
THROW_MSG_0(vmSymbols::java_lang_IllegalAccessException(), klass->external_name());
|
|
4029 |
}
|
|
4030 |
}
|
|
4031 |
|
|
4032 |
// Allocate object and call constructor
|
|
4033 |
Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
|
|
4034 |
JavaCalls::call_default_constructor(thread, constructor, receiver, CHECK_NULL);
|
|
4035 |
|
|
4036 |
jobject res = JNIHandles::make_local(env, receiver());
|
|
4037 |
if (JvmtiExport::should_post_vm_object_alloc()) {
|
|
4038 |
JvmtiExport::post_vm_object_alloc(JavaThread::current(), receiver());
|
|
4039 |
}
|
|
4040 |
return res;
|
|
4041 |
JVM_END
|
|
4042 |
|
|
4043 |
|
|
4044 |
// Field ////////////////////////////////////////////////////////////////////////////////////////////
|
|
4045 |
|
|
4046 |
JVM_ENTRY(jobject, JVM_GetField(JNIEnv *env, jobject field, jobject obj))
|
|
4047 |
JVMWrapper("JVM_GetField");
|
|
4048 |
JvmtiVMObjectAllocEventCollector oam;
|
|
4049 |
Handle field_mirror(thread, JNIHandles::resolve(field));
|
|
4050 |
Handle receiver (thread, JNIHandles::resolve(obj));
|
|
4051 |
fieldDescriptor fd;
|
|
4052 |
Reflection::resolve_field(field_mirror, receiver, &fd, false, CHECK_NULL);
|
|
4053 |
jvalue value;
|
|
4054 |
BasicType type = Reflection::field_get(&value, &fd, receiver);
|
|
4055 |
oop box = Reflection::box(&value, type, CHECK_NULL);
|
|
4056 |
return JNIHandles::make_local(env, box);
|
|
4057 |
JVM_END
|
|
4058 |
|
|
4059 |
|
|
4060 |
JVM_ENTRY(jvalue, JVM_GetPrimitiveField(JNIEnv *env, jobject field, jobject obj, unsigned char wCode))
|
|
4061 |
JVMWrapper("JVM_GetPrimitiveField");
|
|
4062 |
Handle field_mirror(thread, JNIHandles::resolve(field));
|
|
4063 |
Handle receiver (thread, JNIHandles::resolve(obj));
|
|
4064 |
fieldDescriptor fd;
|
|
4065 |
jvalue value;
|
|
4066 |
value.j = 0;
|
|
4067 |
Reflection::resolve_field(field_mirror, receiver, &fd, false, CHECK_(value));
|
|
4068 |
BasicType type = Reflection::field_get(&value, &fd, receiver);
|
|
4069 |
BasicType wide_type = (BasicType) wCode;
|
|
4070 |
if (type != wide_type) {
|
|
4071 |
Reflection::widen(&value, type, wide_type, CHECK_(value));
|
|
4072 |
}
|
|
4073 |
return value;
|
|
4074 |
JVM_END // should really be JVM_END, but that doesn't work for union types!
|
|
4075 |
|
|
4076 |
|
|
4077 |
JVM_ENTRY(void, JVM_SetField(JNIEnv *env, jobject field, jobject obj, jobject val))
|
|
4078 |
JVMWrapper("JVM_SetField");
|
|
4079 |
Handle field_mirror(thread, JNIHandles::resolve(field));
|
|
4080 |
Handle receiver (thread, JNIHandles::resolve(obj));
|
|
4081 |
oop box = JNIHandles::resolve(val);
|
|
4082 |
fieldDescriptor fd;
|
|
4083 |
Reflection::resolve_field(field_mirror, receiver, &fd, true, CHECK);
|
|
4084 |
BasicType field_type = fd.field_type();
|
|
4085 |
jvalue value;
|
|
4086 |
BasicType value_type;
|
|
4087 |
if (field_type == T_OBJECT || field_type == T_ARRAY) {
|
|
4088 |
// Make sure we do no unbox e.g. java/lang/Integer instances when storing into an object array
|
|
4089 |
value_type = Reflection::unbox_for_regular_object(box, &value);
|
|
4090 |
Reflection::field_set(&value, &fd, receiver, field_type, CHECK);
|
|
4091 |
} else {
|
|
4092 |
value_type = Reflection::unbox_for_primitive(box, &value, CHECK);
|
|
4093 |
Reflection::field_set(&value, &fd, receiver, value_type, CHECK);
|
|
4094 |
}
|
|
4095 |
JVM_END
|
|
4096 |
|
|
4097 |
|
|
4098 |
JVM_ENTRY(void, JVM_SetPrimitiveField(JNIEnv *env, jobject field, jobject obj, jvalue v, unsigned char vCode))
|
|
4099 |
JVMWrapper("JVM_SetPrimitiveField");
|
|
4100 |
Handle field_mirror(thread, JNIHandles::resolve(field));
|
|
4101 |
Handle receiver (thread, JNIHandles::resolve(obj));
|
|
4102 |
fieldDescriptor fd;
|
|
4103 |
Reflection::resolve_field(field_mirror, receiver, &fd, true, CHECK);
|
|
4104 |
BasicType value_type = (BasicType) vCode;
|
|
4105 |
Reflection::field_set(&v, &fd, receiver, value_type, CHECK);
|
|
4106 |
JVM_END
|
|
4107 |
|
|
4108 |
|
|
4109 |
// Method ///////////////////////////////////////////////////////////////////////////////////////////
|
|
4110 |
|
|
4111 |
JVM_ENTRY(jobject, JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0))
|
|
4112 |
JVMWrapper("JVM_InvokeMethod");
|
|
4113 |
Handle method_handle;
|
|
4114 |
if (thread->stack_available((address) &method_handle) >= JVMInvokeMethodSlack) {
|
|
4115 |
method_handle = Handle(THREAD, JNIHandles::resolve(method));
|
|
4116 |
Handle receiver(THREAD, JNIHandles::resolve(obj));
|
|
4117 |
objArrayHandle args(THREAD, objArrayOop(JNIHandles::resolve(args0)));
|
|
4118 |
oop result = Reflection::invoke_method(method_handle(), receiver, args, CHECK_NULL);
|
|
4119 |
jobject res = JNIHandles::make_local(env, result);
|
|
4120 |
if (JvmtiExport::should_post_vm_object_alloc()) {
|
|
4121 |
oop ret_type = java_lang_reflect_Method::return_type(method_handle());
|
|
4122 |
assert(ret_type != NULL, "sanity check: ret_type oop must not be NULL!");
|
|
4123 |
if (java_lang_Class::is_primitive(ret_type)) {
|
|
4124 |
// Only for primitive type vm allocates memory for java object.
|
|
4125 |
// See box() method.
|
|
4126 |
JvmtiExport::post_vm_object_alloc(JavaThread::current(), result);
|
|
4127 |
}
|
|
4128 |
}
|
|
4129 |
return res;
|
|
4130 |
} else {
|
|
4131 |
THROW_0(vmSymbols::java_lang_StackOverflowError());
|
|
4132 |
}
|
|
4133 |
JVM_END
|
|
4134 |
|
|
4135 |
|
|
4136 |
JVM_ENTRY(jobject, JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0))
|
|
4137 |
JVMWrapper("JVM_NewInstanceFromConstructor");
|
|
4138 |
oop constructor_mirror = JNIHandles::resolve(c);
|
|
4139 |
objArrayHandle args(THREAD, objArrayOop(JNIHandles::resolve(args0)));
|
|
4140 |
oop result = Reflection::invoke_constructor(constructor_mirror, args, CHECK_NULL);
|
|
4141 |
jobject res = JNIHandles::make_local(env, result);
|
|
4142 |
if (JvmtiExport::should_post_vm_object_alloc()) {
|
|
4143 |
JvmtiExport::post_vm_object_alloc(JavaThread::current(), result);
|
|
4144 |
}
|
|
4145 |
return res;
|
|
4146 |
JVM_END
|
|
4147 |
|
|
4148 |
#endif /* SUPPORT_OLD_REFLECTION */
|
|
4149 |
|
|
4150 |
// Atomic ///////////////////////////////////////////////////////////////////////////////////////////
|
|
4151 |
|
|
4152 |
JVM_LEAF(jboolean, JVM_SupportsCX8())
|
|
4153 |
JVMWrapper("JVM_SupportsCX8");
|
|
4154 |
return VM_Version::supports_cx8();
|
|
4155 |
JVM_END
|
|
4156 |
|
|
4157 |
|
|
4158 |
JVM_ENTRY(jboolean, JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fid, jlong oldVal, jlong newVal))
|
|
4159 |
JVMWrapper("JVM_CX8Field");
|
|
4160 |
jlong res;
|
|
4161 |
oop o = JNIHandles::resolve(obj);
|
|
4162 |
intptr_t fldOffs = jfieldIDWorkaround::from_instance_jfieldID(o->klass(), fid);
|
|
4163 |
volatile jlong* addr = (volatile jlong*)((address)o + fldOffs);
|
|
4164 |
|
|
4165 |
assert(VM_Version::supports_cx8(), "cx8 not supported");
|
|
4166 |
res = Atomic::cmpxchg(newVal, addr, oldVal);
|
|
4167 |
|
|
4168 |
return res == oldVal;
|
|
4169 |
JVM_END
|
|
4170 |
|
|
4171 |
// Returns an array of all live Thread objects (VM internal JavaThreads,
|
|
4172 |
// jvmti agent threads, and JNI attaching threads are skipped)
|
|
4173 |
// See CR 6404306 regarding JNI attaching threads
|
|
4174 |
JVM_ENTRY(jobjectArray, JVM_GetAllThreads(JNIEnv *env, jclass dummy))
|
|
4175 |
ResourceMark rm(THREAD);
|
|
4176 |
ThreadsListEnumerator tle(THREAD, false, false);
|
|
4177 |
JvmtiVMObjectAllocEventCollector oam;
|
|
4178 |
|
|
4179 |
int num_threads = tle.num_threads();
|
|
4180 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::thread_klass(), num_threads, CHECK_NULL);
|
|
4181 |
objArrayHandle threads_ah(THREAD, r);
|
|
4182 |
|
|
4183 |
for (int i = 0; i < num_threads; i++) {
|
|
4184 |
Handle h = tle.get_threadObj(i);
|
|
4185 |
threads_ah->obj_at_put(i, h());
|
|
4186 |
}
|
|
4187 |
|
|
4188 |
return (jobjectArray) JNIHandles::make_local(env, threads_ah());
|
|
4189 |
JVM_END
|
|
4190 |
|
|
4191 |
|
|
4192 |
// Support for java.lang.Thread.getStackTrace() and getAllStackTraces() methods
|
|
4193 |
// Return StackTraceElement[][], each element is the stack trace of a thread in
|
|
4194 |
// the corresponding entry in the given threads array
|
|
4195 |
JVM_ENTRY(jobjectArray, JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads))
|
|
4196 |
JVMWrapper("JVM_DumpThreads");
|
|
4197 |
JvmtiVMObjectAllocEventCollector oam;
|
|
4198 |
|
|
4199 |
// Check if threads is null
|
|
4200 |
if (threads == NULL) {
|
|
4201 |
THROW_(vmSymbols::java_lang_NullPointerException(), 0);
|
|
4202 |
}
|
|
4203 |
|
|
4204 |
objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(threads));
|
|
4205 |
objArrayHandle ah(THREAD, a);
|
|
4206 |
int num_threads = ah->length();
|
|
4207 |
// check if threads is non-empty array
|
|
4208 |
if (num_threads == 0) {
|
|
4209 |
THROW_(vmSymbols::java_lang_IllegalArgumentException(), 0);
|
|
4210 |
}
|
|
4211 |
|
|
4212 |
// check if threads is not an array of objects of Thread class
|
|
4213 |
klassOop k = objArrayKlass::cast(ah->klass())->element_klass();
|
|
4214 |
if (k != SystemDictionary::thread_klass()) {
|
|
4215 |
THROW_(vmSymbols::java_lang_IllegalArgumentException(), 0);
|
|
4216 |
}
|
|
4217 |
|
|
4218 |
ResourceMark rm(THREAD);
|
|
4219 |
|
|
4220 |
GrowableArray<instanceHandle>* thread_handle_array = new GrowableArray<instanceHandle>(num_threads);
|
|
4221 |
for (int i = 0; i < num_threads; i++) {
|
|
4222 |
oop thread_obj = ah->obj_at(i);
|
|
4223 |
instanceHandle h(THREAD, (instanceOop) thread_obj);
|
|
4224 |
thread_handle_array->append(h);
|
|
4225 |
}
|
|
4226 |
|
|
4227 |
Handle stacktraces = ThreadService::dump_stack_traces(thread_handle_array, num_threads, CHECK_NULL);
|
|
4228 |
return (jobjectArray)JNIHandles::make_local(env, stacktraces());
|
|
4229 |
|
|
4230 |
JVM_END
|
|
4231 |
|
|
4232 |
// JVM monitoring and management support
|
|
4233 |
JVM_ENTRY_NO_ENV(void*, JVM_GetManagement(jint version))
|
|
4234 |
return Management::get_jmm_interface(version);
|
|
4235 |
JVM_END
|
|
4236 |
|
|
4237 |
// com.sun.tools.attach.VirtualMachine agent properties support
|
|
4238 |
//
|
|
4239 |
// Initialize the agent properties with the properties maintained in the VM
|
|
4240 |
JVM_ENTRY(jobject, JVM_InitAgentProperties(JNIEnv *env, jobject properties))
|
|
4241 |
JVMWrapper("JVM_InitAgentProperties");
|
|
4242 |
ResourceMark rm;
|
|
4243 |
|
|
4244 |
Handle props(THREAD, JNIHandles::resolve_non_null(properties));
|
|
4245 |
|
|
4246 |
PUTPROP(props, "sun.java.command", Arguments::java_command());
|
|
4247 |
PUTPROP(props, "sun.jvm.flags", Arguments::jvm_flags());
|
|
4248 |
PUTPROP(props, "sun.jvm.args", Arguments::jvm_args());
|
|
4249 |
return properties;
|
|
4250 |
JVM_END
|
|
4251 |
|
|
4252 |
JVM_ENTRY(jobjectArray, JVM_GetEnclosingMethodInfo(JNIEnv *env, jclass ofClass))
|
|
4253 |
{
|
|
4254 |
JVMWrapper("JVM_GetEnclosingMethodInfo");
|
|
4255 |
JvmtiVMObjectAllocEventCollector oam;
|
|
4256 |
|
|
4257 |
if (ofClass == NULL) {
|
|
4258 |
return NULL;
|
|
4259 |
}
|
|
4260 |
Handle mirror(THREAD, JNIHandles::resolve_non_null(ofClass));
|
|
4261 |
// Special handling for primitive objects
|
|
4262 |
if (java_lang_Class::is_primitive(mirror())) {
|
|
4263 |
return NULL;
|
|
4264 |
}
|
|
4265 |
klassOop k = java_lang_Class::as_klassOop(mirror());
|
|
4266 |
if (!Klass::cast(k)->oop_is_instance()) {
|
|
4267 |
return NULL;
|
|
4268 |
}
|
|
4269 |
instanceKlassHandle ik_h(THREAD, k);
|
|
4270 |
int encl_method_class_idx = ik_h->enclosing_method_class_index();
|
|
4271 |
if (encl_method_class_idx == 0) {
|
|
4272 |
return NULL;
|
|
4273 |
}
|
|
4274 |
objArrayOop dest_o = oopFactory::new_objArray(SystemDictionary::object_klass(), 3, CHECK_NULL);
|
|
4275 |
objArrayHandle dest(THREAD, dest_o);
|
|
4276 |
klassOop enc_k = ik_h->constants()->klass_at(encl_method_class_idx, CHECK_NULL);
|
|
4277 |
dest->obj_at_put(0, Klass::cast(enc_k)->java_mirror());
|
|
4278 |
int encl_method_method_idx = ik_h->enclosing_method_method_index();
|
|
4279 |
if (encl_method_method_idx != 0) {
|
|
4280 |
symbolOop sym_o = ik_h->constants()->symbol_at(
|
|
4281 |
extract_low_short_from_int(
|
|
4282 |
ik_h->constants()->name_and_type_at(encl_method_method_idx)));
|
|
4283 |
symbolHandle sym(THREAD, sym_o);
|
|
4284 |
Handle str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
|
|
4285 |
dest->obj_at_put(1, str());
|
|
4286 |
sym_o = ik_h->constants()->symbol_at(
|
|
4287 |
extract_high_short_from_int(
|
|
4288 |
ik_h->constants()->name_and_type_at(encl_method_method_idx)));
|
|
4289 |
sym = symbolHandle(THREAD, sym_o);
|
|
4290 |
str = java_lang_String::create_from_symbol(sym, CHECK_NULL);
|
|
4291 |
dest->obj_at_put(2, str());
|
|
4292 |
}
|
|
4293 |
return (jobjectArray) JNIHandles::make_local(dest());
|
|
4294 |
}
|
|
4295 |
JVM_END
|
|
4296 |
|
|
4297 |
JVM_ENTRY(jintArray, JVM_GetThreadStateValues(JNIEnv* env,
|
|
4298 |
jint javaThreadState))
|
|
4299 |
{
|
|
4300 |
// If new thread states are added in future JDK and VM versions,
|
|
4301 |
// this should check if the JDK version is compatible with thread
|
|
4302 |
// states supported by the VM. Return NULL if not compatible.
|
|
4303 |
//
|
|
4304 |
// This function must map the VM java_lang_Thread::ThreadStatus
|
|
4305 |
// to the Java thread state that the JDK supports.
|
|
4306 |
//
|
|
4307 |
|
|
4308 |
typeArrayHandle values_h;
|
|
4309 |
switch (javaThreadState) {
|
|
4310 |
case JAVA_THREAD_STATE_NEW : {
|
|
4311 |
typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
|
|
4312 |
values_h = typeArrayHandle(THREAD, r);
|
|
4313 |
values_h->int_at_put(0, java_lang_Thread::NEW);
|
|
4314 |
break;
|
|
4315 |
}
|
|
4316 |
case JAVA_THREAD_STATE_RUNNABLE : {
|
|
4317 |
typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
|
|
4318 |
values_h = typeArrayHandle(THREAD, r);
|
|
4319 |
values_h->int_at_put(0, java_lang_Thread::RUNNABLE);
|
|
4320 |
break;
|
|
4321 |
}
|
|
4322 |
case JAVA_THREAD_STATE_BLOCKED : {
|
|
4323 |
typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
|
|
4324 |
values_h = typeArrayHandle(THREAD, r);
|
|
4325 |
values_h->int_at_put(0, java_lang_Thread::BLOCKED_ON_MONITOR_ENTER);
|
|
4326 |
break;
|
|
4327 |
}
|
|
4328 |
case JAVA_THREAD_STATE_WAITING : {
|
|
4329 |
typeArrayOop r = oopFactory::new_typeArray(T_INT, 2, CHECK_NULL);
|
|
4330 |
values_h = typeArrayHandle(THREAD, r);
|
|
4331 |
values_h->int_at_put(0, java_lang_Thread::IN_OBJECT_WAIT);
|
|
4332 |
values_h->int_at_put(1, java_lang_Thread::PARKED);
|
|
4333 |
break;
|
|
4334 |
}
|
|
4335 |
case JAVA_THREAD_STATE_TIMED_WAITING : {
|
|
4336 |
typeArrayOop r = oopFactory::new_typeArray(T_INT, 3, CHECK_NULL);
|
|
4337 |
values_h = typeArrayHandle(THREAD, r);
|
|
4338 |
values_h->int_at_put(0, java_lang_Thread::SLEEPING);
|
|
4339 |
values_h->int_at_put(1, java_lang_Thread::IN_OBJECT_WAIT_TIMED);
|
|
4340 |
values_h->int_at_put(2, java_lang_Thread::PARKED_TIMED);
|
|
4341 |
break;
|
|
4342 |
}
|
|
4343 |
case JAVA_THREAD_STATE_TERMINATED : {
|
|
4344 |
typeArrayOop r = oopFactory::new_typeArray(T_INT, 1, CHECK_NULL);
|
|
4345 |
values_h = typeArrayHandle(THREAD, r);
|
|
4346 |
values_h->int_at_put(0, java_lang_Thread::TERMINATED);
|
|
4347 |
break;
|
|
4348 |
}
|
|
4349 |
default:
|
|
4350 |
// Unknown state - probably incompatible JDK version
|
|
4351 |
return NULL;
|
|
4352 |
}
|
|
4353 |
|
|
4354 |
return (jintArray) JNIHandles::make_local(env, values_h());
|
|
4355 |
}
|
|
4356 |
JVM_END
|
|
4357 |
|
|
4358 |
|
|
4359 |
JVM_ENTRY(jobjectArray, JVM_GetThreadStateNames(JNIEnv* env,
|
|
4360 |
jint javaThreadState,
|
|
4361 |
jintArray values))
|
|
4362 |
{
|
|
4363 |
// If new thread states are added in future JDK and VM versions,
|
|
4364 |
// this should check if the JDK version is compatible with thread
|
|
4365 |
// states supported by the VM. Return NULL if not compatible.
|
|
4366 |
//
|
|
4367 |
// This function must map the VM java_lang_Thread::ThreadStatus
|
|
4368 |
// to the Java thread state that the JDK supports.
|
|
4369 |
//
|
|
4370 |
|
|
4371 |
ResourceMark rm;
|
|
4372 |
|
|
4373 |
// Check if threads is null
|
|
4374 |
if (values == NULL) {
|
|
4375 |
THROW_(vmSymbols::java_lang_NullPointerException(), 0);
|
|
4376 |
}
|
|
4377 |
|
|
4378 |
typeArrayOop v = typeArrayOop(JNIHandles::resolve_non_null(values));
|
|
4379 |
typeArrayHandle values_h(THREAD, v);
|
|
4380 |
|
|
4381 |
objArrayHandle names_h;
|
|
4382 |
switch (javaThreadState) {
|
|
4383 |
case JAVA_THREAD_STATE_NEW : {
|
|
4384 |
assert(values_h->length() == 1 &&
|
|
4385 |
values_h->int_at(0) == java_lang_Thread::NEW,
|
|
4386 |
"Invalid threadStatus value");
|
|
4387 |
|
|
4388 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
|
|
4389 |
1, /* only 1 substate */
|
|
4390 |
CHECK_NULL);
|
|
4391 |
names_h = objArrayHandle(THREAD, r);
|
|
4392 |
Handle name = java_lang_String::create_from_str("NEW", CHECK_NULL);
|
|
4393 |
names_h->obj_at_put(0, name());
|
|
4394 |
break;
|
|
4395 |
}
|
|
4396 |
case JAVA_THREAD_STATE_RUNNABLE : {
|
|
4397 |
assert(values_h->length() == 1 &&
|
|
4398 |
values_h->int_at(0) == java_lang_Thread::RUNNABLE,
|
|
4399 |
"Invalid threadStatus value");
|
|
4400 |
|
|
4401 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
|
|
4402 |
1, /* only 1 substate */
|
|
4403 |
CHECK_NULL);
|
|
4404 |
names_h = objArrayHandle(THREAD, r);
|
|
4405 |
Handle name = java_lang_String::create_from_str("RUNNABLE", CHECK_NULL);
|
|
4406 |
names_h->obj_at_put(0, name());
|
|
4407 |
break;
|
|
4408 |
}
|
|
4409 |
case JAVA_THREAD_STATE_BLOCKED : {
|
|
4410 |
assert(values_h->length() == 1 &&
|
|
4411 |
values_h->int_at(0) == java_lang_Thread::BLOCKED_ON_MONITOR_ENTER,
|
|
4412 |
"Invalid threadStatus value");
|
|
4413 |
|
|
4414 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
|
|
4415 |
1, /* only 1 substate */
|
|
4416 |
CHECK_NULL);
|
|
4417 |
names_h = objArrayHandle(THREAD, r);
|
|
4418 |
Handle name = java_lang_String::create_from_str("BLOCKED", CHECK_NULL);
|
|
4419 |
names_h->obj_at_put(0, name());
|
|
4420 |
break;
|
|
4421 |
}
|
|
4422 |
case JAVA_THREAD_STATE_WAITING : {
|
|
4423 |
assert(values_h->length() == 2 &&
|
|
4424 |
values_h->int_at(0) == java_lang_Thread::IN_OBJECT_WAIT &&
|
|
4425 |
values_h->int_at(1) == java_lang_Thread::PARKED,
|
|
4426 |
"Invalid threadStatus value");
|
|
4427 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
|
|
4428 |
2, /* number of substates */
|
|
4429 |
CHECK_NULL);
|
|
4430 |
names_h = objArrayHandle(THREAD, r);
|
|
4431 |
Handle name0 = java_lang_String::create_from_str("WAITING.OBJECT_WAIT",
|
|
4432 |
CHECK_NULL);
|
|
4433 |
Handle name1 = java_lang_String::create_from_str("WAITING.PARKED",
|
|
4434 |
CHECK_NULL);
|
|
4435 |
names_h->obj_at_put(0, name0());
|
|
4436 |
names_h->obj_at_put(1, name1());
|
|
4437 |
break;
|
|
4438 |
}
|
|
4439 |
case JAVA_THREAD_STATE_TIMED_WAITING : {
|
|
4440 |
assert(values_h->length() == 3 &&
|
|
4441 |
values_h->int_at(0) == java_lang_Thread::SLEEPING &&
|
|
4442 |
values_h->int_at(1) == java_lang_Thread::IN_OBJECT_WAIT_TIMED &&
|
|
4443 |
values_h->int_at(2) == java_lang_Thread::PARKED_TIMED,
|
|
4444 |
"Invalid threadStatus value");
|
|
4445 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
|
|
4446 |
3, /* number of substates */
|
|
4447 |
CHECK_NULL);
|
|
4448 |
names_h = objArrayHandle(THREAD, r);
|
|
4449 |
Handle name0 = java_lang_String::create_from_str("TIMED_WAITING.SLEEPING",
|
|
4450 |
CHECK_NULL);
|
|
4451 |
Handle name1 = java_lang_String::create_from_str("TIMED_WAITING.OBJECT_WAIT",
|
|
4452 |
CHECK_NULL);
|
|
4453 |
Handle name2 = java_lang_String::create_from_str("TIMED_WAITING.PARKED",
|
|
4454 |
CHECK_NULL);
|
|
4455 |
names_h->obj_at_put(0, name0());
|
|
4456 |
names_h->obj_at_put(1, name1());
|
|
4457 |
names_h->obj_at_put(2, name2());
|
|
4458 |
break;
|
|
4459 |
}
|
|
4460 |
case JAVA_THREAD_STATE_TERMINATED : {
|
|
4461 |
assert(values_h->length() == 1 &&
|
|
4462 |
values_h->int_at(0) == java_lang_Thread::TERMINATED,
|
|
4463 |
"Invalid threadStatus value");
|
|
4464 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(),
|
|
4465 |
1, /* only 1 substate */
|
|
4466 |
CHECK_NULL);
|
|
4467 |
names_h = objArrayHandle(THREAD, r);
|
|
4468 |
Handle name = java_lang_String::create_from_str("TERMINATED", CHECK_NULL);
|
|
4469 |
names_h->obj_at_put(0, name());
|
|
4470 |
break;
|
|
4471 |
}
|
|
4472 |
default:
|
|
4473 |
// Unknown state - probably incompatible JDK version
|
|
4474 |
return NULL;
|
|
4475 |
}
|
|
4476 |
return (jobjectArray) JNIHandles::make_local(env, names_h());
|
|
4477 |
}
|
|
4478 |
JVM_END
|
|
4479 |
|
|
4480 |
JVM_ENTRY(void, JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size))
|
|
4481 |
{
|
|
4482 |
memset(info, 0, sizeof(info_size));
|
|
4483 |
|
|
4484 |
info->jvm_version = Abstract_VM_Version::jvm_version();
|
|
4485 |
info->update_version = 0; /* 0 in HotSpot Express VM */
|
|
4486 |
info->special_update_version = 0; /* 0 in HotSpot Express VM */
|
|
4487 |
|
|
4488 |
// when we add a new capability in the jvm_version_info struct, we should also
|
|
4489 |
// consider to expose this new capability in the sun.rt.jvmCapabilities jvmstat
|
|
4490 |
// counter defined in runtimeService.cpp.
|
|
4491 |
info->is_attachable = AttachListener::is_attach_supported();
|
|
4492 |
#ifdef KERNEL
|
|
4493 |
info->is_kernel_jvm = 1; // true;
|
|
4494 |
#else // KERNEL
|
|
4495 |
info->is_kernel_jvm = 0; // false;
|
|
4496 |
#endif // KERNEL
|
|
4497 |
}
|
|
4498 |
JVM_END
|