Mercurial > hg > graal-compiler
view src/os/solaris/vm/osThread_solaris.hpp @ 6812:988bf00cc564
7200261: G1: Liveness counting inconsistencies during marking verification
Summary: The clipping code in the routine that sets the bits for a range of cards, in the liveness accounting verification code was incorrect. It set all the bits in the card bitmap from the given starting index which would lead to spurious marking verification failures.
Reviewed-by: brutisso, jwilhelm, jmasa
author | johnc |
---|---|
date | Thu, 27 Sep 2012 15:44:01 -0700 |
parents | 960a442eae91 |
children | f2110083203d |
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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 OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP #define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP // This is embedded via include into the class OSThread public: typedef thread_t thread_id_t; private: uint _lwp_id; // lwp ID, only used with bound threads int _native_priority; // Saved native priority when starting // a bound thread sigset_t _caller_sigmask; // Caller's signal mask bool _vm_created_thread; // true if the VM created this thread, // false if primary thread or attached thread public: uint lwp_id() const { return _lwp_id; } int native_priority() const { return _native_priority; } // Set and get state of _vm_created_thread flag void set_vm_created() { _vm_created_thread = true; } bool is_vm_created() { return _vm_created_thread; } // Methods to save/restore caller's signal mask sigset_t caller_sigmask() const { return _caller_sigmask; } void set_caller_sigmask(sigset_t sigmask) { _caller_sigmask = sigmask; } #ifndef PRODUCT // Used for debugging, return a unique integer for each thread. int thread_identifier() const { return _thread_id; } #endif #ifdef ASSERT // On solaris reposition can fail in two ways: // 1: a mismatched pc, because signal is delivered too late, target thread // is resumed. // 2: on a timeout where signal is lost, target thread is resumed. bool valid_reposition_failure() { // only 1 and 2 can happen and we can handle both of them return true; } #endif void set_lwp_id(uint id) { _lwp_id = id; } void set_native_priority(int prio) { _native_priority = prio; } // *************************************************************** // interrupt support. interrupts (using signals) are used to get // the thread context (get_thread_pc), to set the thread context // (set_thread_pc), and to implement java.lang.Thread.interrupt. // *************************************************************** public: class InterruptArguments : StackObj { private: Thread* _thread; // the thread to signal was dispatched to ucontext_t* _ucontext; // the machine context at the time of the signal public: InterruptArguments(Thread* thread, ucontext_t* ucontext) { _thread = thread; _ucontext = ucontext; } Thread* thread() const { return _thread; } ucontext_t* ucontext() const { return _ucontext; } }; // There are currently no asynchronous callbacks - and we'd better not // support them in the future either, as they need to be deallocated from // the interrupt handler, which is not safe; they also require locks to // protect the callback queue. class Sync_Interrupt_Callback : private StackObj { protected: volatile bool _is_done; Monitor* _sync; Thread* _target; public: Sync_Interrupt_Callback(Monitor * sync) { _is_done = false; _target = NULL; _sync = sync; } bool is_done() const { return _is_done; } Thread* target() const { return _target; } int interrupt(Thread * target, int timeout); // override to implement the callback. virtual void execute(InterruptArguments *args) = 0; void leave_callback(); }; private: Sync_Interrupt_Callback * volatile _current_callback; enum { callback_in_progress = 1 }; Mutex * _current_callback_lock; // only used on v8 public: int set_interrupt_callback (Sync_Interrupt_Callback * cb); void remove_interrupt_callback(Sync_Interrupt_Callback * cb); void do_interrupt_callbacks_at_interrupt(InterruptArguments *args); // *************************************************************** // java.lang.Thread.interrupt state. // *************************************************************** private: JavaThreadState _saved_interrupt_thread_state; // the thread state before a system call -- restored afterward public: JavaThreadState saved_interrupt_thread_state() { return _saved_interrupt_thread_state; } void set_saved_interrupt_thread_state(JavaThreadState state) { _saved_interrupt_thread_state = state; } static void handle_spinlock_contention(int tries); // Used for thread local eden locking // *************************************************************** // Platform dependent initialization and cleanup // *************************************************************** private: void pd_initialize(); void pd_destroy(); #endif // OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP