hotspot/src/os_cpu/windows_x86/vm/threadLS_windows_x86.cpp

/*
 * Copyright (c) 1998, 2010, 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
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 */

#include "precompiled.hpp"
#include "runtime/thread.inline.hpp"
#include "runtime/threadLocalStorage.hpp"

// Provides an entry point we can link against and
// a buffer we can emit code into. The buffer is
// filled by ThreadLocalStorage::generate_code_for_get_thread
// and called from ThreadLocalStorage::thread()

int ThreadLocalStorage::_thread_ptr_offset = 0;

static void call_wrapper_dummy() {}

// We need to call the os_exception_wrapper once so that it sets
// up the offset from FS of the thread pointer.
void ThreadLocalStorage::generate_code_for_get_thread() {
      os::os_exception_wrapper( (java_call_t)call_wrapper_dummy,
                                NULL, NULL, NULL, NULL);
}

void ThreadLocalStorage::pd_init() { }

void ThreadLocalStorage::pd_set_thread(Thread* thread)  {
  os::thread_local_storage_at_put(ThreadLocalStorage::thread_index(), thread);
}