Mercurial > hg > graal-compiler
view src/share/vm/services/runtimeService.hpp @ 477:24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
Summary: Make reguard_stack change access to RW, not execute and use os::protect_memory with the new parameter when change needed to X.
Reviewed-by: acorn, jcoomes
author | coleenp |
---|---|
date | Wed, 10 Dec 2008 15:14:29 -0800 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2003-2006 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. * */ class RuntimeService : public AllStatic { private: static PerfCounter* _sync_time_ticks; // Accumulated time spent getting to safepoints static PerfCounter* _total_safepoints; static PerfCounter* _safepoint_time_ticks; // Accumulated time at safepoints static PerfCounter* _application_time_ticks; // Accumulated time not at safepoints static PerfCounter* _thread_interrupt_signaled_count;// os:interrupt thr_kill static PerfCounter* _interrupted_before_count; // _INTERRUPTIBLE OS_INTRPT static PerfCounter* _interrupted_during_count; // _INTERRUPTIBLE OS_INTRPT static TimeStamp _safepoint_timer; static TimeStamp _app_timer; public: static void init(); static jlong safepoint_sync_time_ms(); static jlong safepoint_count(); static jlong safepoint_time_ms(); static jlong application_time_ms(); static double last_safepoint_time_sec() { return _safepoint_timer.seconds(); } static double last_application_time_sec() { return _app_timer.seconds(); } // callbacks static void record_safepoint_begin(); static void record_safepoint_synchronized(); static void record_safepoint_end(); static void record_application_start(); // interruption events static void record_interrupted_before_count(); static void record_interrupted_during_count(); static void record_thread_interrupt_signaled_count(); };