aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@1: /*
aoqi@1:  * This file has been modified by Loongson Technology in 2015. These
aoqi@1:  * modifications are Copyright (c) 2015 Loongson Technology, and are made
aoqi@1:  * available on the same license terms set forth above.
aoqi@1:  */
aoqi@1: 
aoqi@0: #ifndef SHARE_VM_RUNTIME_DTRACEJSDT_HPP
aoqi@0: #define SHARE_VM_RUNTIME_DTRACEJSDT_HPP
aoqi@0: 
aoqi@0: #include "code/nmethod.hpp"
aoqi@0: #ifdef TARGET_ARCH_x86
aoqi@0: # include "nativeInst_x86.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_sparc
aoqi@0: # include "nativeInst_sparc.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_zero
aoqi@0: # include "nativeInst_zero.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_arm
aoqi@0: # include "nativeInst_arm.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_ARCH_ppc
aoqi@0: # include "nativeInst_ppc.hpp"
aoqi@0: #endif
aoqi@1: #ifdef TARGET_ARCH_mips
aoqi@1: # include "nativeInst_mips.hpp"
aoqi@1: #endif
aoqi@0: 
aoqi@0: class RegisteredProbes;
aoqi@0: typedef jlong OpaqueProbes;
aoqi@0: 
aoqi@0: class DTraceJSDT : AllStatic {
aoqi@0:  private:
aoqi@0: 
aoqi@0:   static int pd_activate(void* moduleBaseAddress, jstring module,
aoqi@0:       jint providers_count, JVM_DTraceProvider* providers);
aoqi@0:   static void pd_dispose(int handle);
aoqi@0:   static jboolean pd_is_supported();
aoqi@0: 
aoqi@0:  public:
aoqi@0: 
aoqi@0:   static OpaqueProbes activate(
aoqi@0:       jint version, jstring module_name, jint providers_count,
aoqi@0:       JVM_DTraceProvider* providers, TRAPS);
aoqi@0:   static jboolean is_probe_enabled(jmethodID method);
aoqi@0:   static void dispose(OpaqueProbes handle);
aoqi@0:   static jboolean is_supported();
aoqi@0: };
aoqi@0: 
aoqi@0: class RegisteredProbes : public CHeapObj<mtInternal> {
aoqi@0:  private:
aoqi@0:   nmethod** _nmethods;      // all the probe methods
aoqi@0:   size_t    _count;         // number of probe methods
aoqi@0:   int       _helper_handle; // DTrace-assigned identifier
aoqi@0: 
aoqi@0:  public:
aoqi@0:   RegisteredProbes(size_t count) {
aoqi@0:     _count = count;
aoqi@0:     _nmethods = NEW_C_HEAP_ARRAY(nmethod*, count, mtInternal);
aoqi@0:   }
aoqi@0: 
aoqi@0:   ~RegisteredProbes() {
aoqi@0:     for (size_t i = 0; i < _count; ++i) {
aoqi@0:       // Let the sweeper reclaim it
aoqi@0:       _nmethods[i]->make_not_entrant();
aoqi@0:       _nmethods[i]->method()->clear_code();
aoqi@0:     }
aoqi@0:     FREE_C_HEAP_ARRAY(nmethod*, _nmethods, mtInternal);
aoqi@0:     _nmethods = NULL;
aoqi@0:     _count = 0;
aoqi@0:   }
aoqi@0: 
aoqi@0:   static RegisteredProbes* toRegisteredProbes(OpaqueProbes p) {
aoqi@0:     return (RegisteredProbes*)(intptr_t)p;
aoqi@0:   }
aoqi@0: 
aoqi@0:   static OpaqueProbes toOpaqueProbes(RegisteredProbes* p) {
aoqi@0:     return (OpaqueProbes)(intptr_t)p;
aoqi@0:   }
aoqi@0: 
aoqi@0:   void set_helper_handle(int handle) { _helper_handle = handle; }
aoqi@0:   int helper_handle() const { return _helper_handle; }
aoqi@0: 
aoqi@0:   nmethod* nmethod_at(size_t i) {
aoqi@0:     assert(i >= 0 && i < _count, "bad nmethod index");
aoqi@0:     return _nmethods[i];
aoqi@0:   }
aoqi@0: 
aoqi@0:   void nmethod_at_put(size_t i, nmethod* nm) {
aoqi@0:     assert(i >= 0 && i < _count, "bad nmethod index");
aoqi@0:     _nmethods[i] = nm;
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: #endif // SHARE_VM_RUNTIME_DTRACEJSDT_HPP