Mercurial > hg > graal-compiler
view src/share/vm/runtime/dtraceJSDT.cpp @ 20195:418bb2c2b55a
8049327: [TESTBUG] gc/logging/TestGCId.java assumes default PrintGCID value is true
Reviewed-by: ehelin, tschatzl
author | brutisso |
---|---|
date | Mon, 07 Jul 2014 14:44:33 +0200 |
parents | da91efe96a93 |
children |
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/* * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "classfile/javaClasses.hpp" #include "code/codeBlob.hpp" #include "memory/allocation.hpp" #include "prims/jvm.h" #include "runtime/dtraceJSDT.hpp" #include "runtime/jniHandles.hpp" #include "runtime/os.hpp" #include "utilities/exceptions.hpp" #include "utilities/globalDefinitions.hpp" #include "utilities/utf8.hpp" #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, Method::resolve_jmethod_id(probe->method)); nmethod* nm = AdapterHandlerLibrary::create_dtrace_nmethod(h_method); if (nm == NULL) { delete probes; THROW_MSG_0(vmSymbols::java_lang_RuntimeException(), "Unable to register DTrace probes (CodeCache: no room for DTrace nmethods)."); } h_method()->set_not_compilable(); 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) { Method* m = Method::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