1 /*
   2  * Copyright (c) 2002, 2011, 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 #ifndef OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
  26 #define OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP
  27 
  28 #ifndef SHARE_VM_RUNTIME_THREAD_INLINE_HPP_SCOPE
  29 #error "This file should only be included from thread.inline.hpp"
  30 #endif
  31 
  32 #include "runtime/atomic.hpp"
  33 #include "runtime/prefetch.hpp"
  34 #include "runtime/thread.hpp"
  35 #include "runtime/threadLocalStorage.hpp"
  36 #ifdef TARGET_OS_ARCH_solaris_x86
  37 # include "atomic_solaris_x86.inline.hpp"
  38 # include "orderAccess_solaris_x86.inline.hpp"
  39 # include "prefetch_solaris_x86.inline.hpp"
  40 #endif
  41 #ifdef TARGET_OS_ARCH_solaris_sparc
  42 # include "atomic_solaris_sparc.inline.hpp"
  43 # include "orderAccess_solaris_sparc.inline.hpp"
  44 # include "prefetch_solaris_sparc.inline.hpp"
  45 #endif
  46 
  47 // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
  48 // startup.
  49 // ThreadLocalStorage::thread is warm -- it's called > 16K times in the same
  50 // period.   Thread::current() now calls ThreadLocalStorage::thread() directly.
  51 // For SPARC, to avoid excessive register window spill-fill faults,
  52 // we aggressively inline these routines.
  53 
  54 inline Thread* ThreadLocalStorage::thread()  {
  55   // don't use specialized code if +UseMallocOnly -- may confuse Purify et al.
  56   debug_only(if (UseMallocOnly) return get_thread_slow(););
  57 
  58   uintptr_t raw = pd_raw_thread_id();
  59   int ix = pd_cache_index(raw);
  60   Thread* candidate = ThreadLocalStorage::_get_thread_cache[ix];
  61   if (candidate->self_raw_id() == raw) {
  62     // hit
  63     return candidate;
  64   } else {
  65     return ThreadLocalStorage::get_thread_via_cache_slowly(raw, ix);
  66   }
  67 }
  68 
  69 #endif // OS_SOLARIS_VM_THREAD_SOLARIS_INLINE_HPP