kamg@551: /*
mikael@4153:  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
kamg@551:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
kamg@551:  *
kamg@551:  * This code is free software; you can redistribute it and/or modify it
kamg@551:  * under the terms of the GNU General Public License version 2 only, as
kamg@551:  * published by the Free Software Foundation.
kamg@551:  *
kamg@551:  * This code is distributed in the hope that it will be useful, but WITHOUT
kamg@551:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kamg@551:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
kamg@551:  * version 2 for more details (a copy is included in the LICENSE file that
kamg@551:  * accompanied this code).
kamg@551:  *
kamg@551:  * You should have received a copy of the GNU General Public License version
kamg@551:  * 2 along with this work; if not, write to the Free Software Foundation,
kamg@551:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
kamg@551:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
kamg@551:  *
kamg@551:  */
kamg@551: 
stefank@2314: #ifndef SHARE_VM_RUNTIME_DTRACEJSDT_HPP
stefank@2314: #define SHARE_VM_RUNTIME_DTRACEJSDT_HPP
stefank@2314: 
stefank@2314: #include "code/nmethod.hpp"
stefank@2314: #ifdef TARGET_ARCH_x86
stefank@2314: # include "nativeInst_x86.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_sparc
stefank@2314: # include "nativeInst_sparc.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_ARCH_zero
stefank@2314: # include "nativeInst_zero.hpp"
stefank@2314: #endif
bobv@2508: #ifdef TARGET_ARCH_arm
bobv@2508: # include "nativeInst_arm.hpp"
bobv@2508: #endif
bobv@2508: #ifdef TARGET_ARCH_ppc
bobv@2508: # include "nativeInst_ppc.hpp"
bobv@2508: #endif
stefank@2314: 
kamg@551: class RegisteredProbes;
kamg@551: typedef jlong OpaqueProbes;
kamg@551: 
kamg@551: class DTraceJSDT : AllStatic {
kamg@551:  private:
kamg@551: 
kamg@551:   static int pd_activate(void* moduleBaseAddress, jstring module,
kamg@551:       jint providers_count, JVM_DTraceProvider* providers);
kamg@551:   static void pd_dispose(int handle);
kamg@551:   static jboolean pd_is_supported();
kamg@551: 
kamg@551:  public:
kamg@551: 
kamg@551:   static OpaqueProbes activate(
kamg@551:       jint version, jstring module_name, jint providers_count,
kamg@551:       JVM_DTraceProvider* providers, TRAPS);
kamg@551:   static jboolean is_probe_enabled(jmethodID method);
kamg@551:   static void dispose(OpaqueProbes handle);
kamg@551:   static jboolean is_supported();
kamg@551: };
kamg@551: 
zgu@3900: class RegisteredProbes : public CHeapObj<mtInternal> {
kamg@551:  private:
kamg@551:   nmethod** _nmethods;      // all the probe methods
kamg@551:   size_t    _count;         // number of probe methods
kamg@551:   int       _helper_handle; // DTrace-assigned identifier
kamg@551: 
kamg@551:  public:
kamg@551:   RegisteredProbes(size_t count) {
kamg@551:     _count = count;
zgu@3900:     _nmethods = NEW_C_HEAP_ARRAY(nmethod*, count, mtInternal);
kamg@551:   }
kamg@551: 
kamg@551:   ~RegisteredProbes() {
kamg@551:     for (size_t i = 0; i < _count; ++i) {
kamg@551:       // Let the sweeper reclaim it
kamg@551:       _nmethods[i]->make_not_entrant();
kamg@551:       _nmethods[i]->method()->clear_code();
kamg@551:     }
zgu@3900:     FREE_C_HEAP_ARRAY(nmethod*, _nmethods, mtInternal);
kamg@551:     _nmethods = NULL;
kamg@551:     _count = 0;
kamg@551:   }
kamg@551: 
kamg@551:   static RegisteredProbes* toRegisteredProbes(OpaqueProbes p) {
kamg@551:     return (RegisteredProbes*)(intptr_t)p;
kamg@551:   }
kamg@551: 
kamg@551:   static OpaqueProbes toOpaqueProbes(RegisteredProbes* p) {
kamg@551:     return (OpaqueProbes)(intptr_t)p;
kamg@551:   }
kamg@551: 
kamg@551:   void set_helper_handle(int handle) { _helper_handle = handle; }
kamg@551:   int helper_handle() const { return _helper_handle; }
kamg@551: 
kamg@551:   nmethod* nmethod_at(size_t i) {
kamg@551:     assert(i >= 0 && i < _count, "bad nmethod index");
kamg@551:     return _nmethods[i];
kamg@551:   }
kamg@551: 
kamg@551:   void nmethod_at_put(size_t i, nmethod* nm) {
kamg@551:     assert(i >= 0 && i < _count, "bad nmethod index");
kamg@551:     _nmethods[i] = nm;
kamg@551:   }
kamg@551: };
stefank@2314: 
stefank@2314: #endif // SHARE_VM_RUNTIME_DTRACEJSDT_HPP