Mercurial > hg > truffle
view src/share/vm/runtime/dtraceJSDT.hpp @ 8128:2223b68006cd
Avoid saving rsp in rbp.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 06 Mar 2013 16:38:15 +0100 |
parents | b9a9ed0f8eeb |
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. * */ #ifndef SHARE_VM_RUNTIME_DTRACEJSDT_HPP #define SHARE_VM_RUNTIME_DTRACEJSDT_HPP #include "code/nmethod.hpp" #ifdef TARGET_ARCH_x86 # include "nativeInst_x86.hpp" #endif #ifdef TARGET_ARCH_sparc # include "nativeInst_sparc.hpp" #endif #ifdef TARGET_ARCH_zero # include "nativeInst_zero.hpp" #endif #ifdef TARGET_ARCH_arm # include "nativeInst_arm.hpp" #endif #ifdef TARGET_ARCH_ppc # include "nativeInst_ppc.hpp" #endif class RegisteredProbes; typedef jlong OpaqueProbes; class DTraceJSDT : AllStatic { private: static int pd_activate(void* moduleBaseAddress, jstring module, jint providers_count, JVM_DTraceProvider* providers); static void pd_dispose(int handle); static jboolean pd_is_supported(); public: static OpaqueProbes activate( jint version, jstring module_name, jint providers_count, JVM_DTraceProvider* providers, TRAPS); static jboolean is_probe_enabled(jmethodID method); static void dispose(OpaqueProbes handle); static jboolean is_supported(); }; class RegisteredProbes : public CHeapObj<mtInternal> { private: nmethod** _nmethods; // all the probe methods size_t _count; // number of probe methods int _helper_handle; // DTrace-assigned identifier public: RegisteredProbes(size_t count) { _count = count; _nmethods = NEW_C_HEAP_ARRAY(nmethod*, count, mtInternal); } ~RegisteredProbes() { for (size_t i = 0; i < _count; ++i) { // Let the sweeper reclaim it _nmethods[i]->make_not_entrant(); _nmethods[i]->method()->clear_code(); } FREE_C_HEAP_ARRAY(nmethod*, _nmethods, mtInternal); _nmethods = NULL; _count = 0; } static RegisteredProbes* toRegisteredProbes(OpaqueProbes p) { return (RegisteredProbes*)(intptr_t)p; } static OpaqueProbes toOpaqueProbes(RegisteredProbes* p) { return (OpaqueProbes)(intptr_t)p; } void set_helper_handle(int handle) { _helper_handle = handle; } int helper_handle() const { return _helper_handle; } nmethod* nmethod_at(size_t i) { assert(i >= 0 && i < _count, "bad nmethod index"); return _nmethods[i]; } void nmethod_at_put(size_t i, nmethod* nm) { assert(i >= 0 && i < _count, "bad nmethod index"); _nmethods[i] = nm; } }; #endif // SHARE_VM_RUNTIME_DTRACEJSDT_HPP