1 /*
   2  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 // no precompiled headers
  26 #include "runtime/atomic.hpp"
  27 #include "runtime/handles.inline.hpp"
  28 #include "runtime/mutexLocker.hpp"
  29 #include "runtime/os.hpp"
  30 #include "runtime/osThread.hpp"
  31 #include "runtime/safepoint.hpp"
  32 #include "runtime/vmThread.hpp"
  33 #ifdef TARGET_ARCH_x86
  34 # include "assembler_x86.inline.hpp"
  35 #endif
  36 #ifdef TARGET_ARCH_sparc
  37 # include "assembler_sparc.inline.hpp"
  38 #endif
  39 #ifdef TARGET_ARCH_zero
  40 # include "assembler_zero.inline.hpp"
  41 #endif
  42 #ifdef TARGET_ARCH_arm
  43 # include "assembler_arm.inline.hpp"
  44 #endif
  45 #ifdef TARGET_ARCH_ppc
  46 # include "assembler_ppc.inline.hpp"
  47 #endif
  48 
  49 
  50 void OSThread::pd_initialize() {
  51   assert(this != NULL, "check");
  52   _thread_id        = 0;
  53   _pthread_id       = NULL;
  54   _siginfo = NULL;
  55   _ucontext = NULL;
  56   _expanding_stack = 0;
  57   _alt_sig_stack = NULL;
  58 
  59   sigemptyset(&_caller_sigmask);
  60 
  61   _startThread_lock = new Monitor(Mutex::event, "startThread_lock", true);
  62   assert(_startThread_lock !=NULL, "check");
  63 }
  64 
  65 void OSThread::pd_destroy() {
  66   delete _startThread_lock;
  67 }