--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/runtime/dtraceJSDT.cpp Thu Apr 17 22:18:15 2008 -0400
@@ -0,0 +1,117 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_dtraceJSDT.cpp.incl"
+
+#ifdef HAVE_DTRACE_H
+
+jlong DTraceJSDT::activate(
+ jint version, jstring module_name, jint providers_count,
+ JVM_DTraceProvider* providers, TRAPS) {
+
+ size_t count = 0;
+ RegisteredProbes* probes = NULL;
+
+ if (!is_supported()) {
+ return 0;
+ }
+
+ assert(module_name != NULL, "valid module name");
+ assert(providers != NULL, "valid provider array");
+
+ for (int i = 0; i < providers_count; ++i) {
+ count += providers[i].probe_count;
+ }
+ probes = new RegisteredProbes(count);
+ count = 0;
+
+ for (int i = 0; i < providers_count; ++i) {
+ assert(providers[i].name != NULL, "valid provider name");
+ assert(providers[i].probe_count == 0 || providers[i].probes != NULL,
+ "valid probe count");
+ for (int j = 0; j < providers[i].probe_count; ++j) {
+ JVM_DTraceProbe* probe = &(providers[i].probes[j]);
+ assert(probe != NULL, "valid probe");
+ assert(probe->method != NULL, "valid method");
+ assert(probe->name != NULL, "valid probe name");
+ assert(probe->function != NULL, "valid probe function spec");
+ methodHandle h_method =
+ methodHandle(THREAD, JNIHandles::resolve_jmethod_id(probe->method));
+ nmethod* nm = AdapterHandlerLibrary::create_dtrace_nmethod(h_method);
+ h_method()->set_not_compilable(CompLevel_highest_tier);
+ h_method()->set_code(h_method, nm);
+ probes->nmethod_at_put(count++, nm);
+ }
+ }
+
+ int handle = pd_activate((void*)probes,
+ module_name, providers_count, providers);
+ if (handle <= 0) {
+ delete probes;
+ THROW_MSG_0(vmSymbols::java_lang_RuntimeException(),
+ "Unable to register DTrace probes (internal error).");
+ }
+ probes->set_helper_handle(handle);
+ return RegisteredProbes::toOpaqueProbes(probes);
+}
+
+jboolean DTraceJSDT::is_probe_enabled(jmethodID method) {
+ methodOop m = JNIHandles::resolve_jmethod_id(method);
+ return nativeInstruction_at(m->code()->trap_address())->is_dtrace_trap();
+}
+
+void DTraceJSDT::dispose(OpaqueProbes probes) {
+ RegisteredProbes* p = RegisteredProbes::toRegisteredProbes(probes);
+ if (probes != -1 && p != NULL) {
+ pd_dispose(p->helper_handle());
+ delete p;
+ }
+}
+
+jboolean DTraceJSDT::is_supported() {
+ return pd_is_supported();
+}
+
+#else // HAVE_DTRACE_H
+
+jlong DTraceJSDT::activate(
+ jint version, jstring module_name, jint providers_count,
+ JVM_DTraceProvider* providers, TRAPS) {
+ return 0;
+}
+
+jboolean DTraceJSDT::is_probe_enabled(jmethodID method) {
+ return false;
+}
+
+void DTraceJSDT::dispose(OpaqueProbes probes) {
+ return;
+}
+
+jboolean DTraceJSDT::is_supported() {
+ return false;
+}
+
+#endif // ndef HAVE_DTRACE_H