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src/os_cpu/windows_x86/vm/threadLS_windows_x86.cpp@d0994e5bebce (annotated)

src/os_cpu/windows_x86/vm/threadLS_windows_x86.cpp

Thu, 26 Mar 2009 14:31:45 -0700

author

never

date

Thu, 26 Mar 2009 14:31:45 -0700

changeset 1106

d0994e5bebce

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6822204: volatile fences should prefer lock:addl to actual mfence instructions
Reviewed-by: kvn, phh

duke@435	1	/*
duke@435	2	* Copyright 1998-2003 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// Provides an entry point we can link against and
duke@435	26	// a buffer we can emit code into. The buffer is
duke@435	27	// filled by ThreadLocalStorage::generate_code_for_get_thread
duke@435	28	// and called from ThreadLocalStorage::thread()
duke@435	29
duke@435	30	#include "incls/_precompiled.incl"
duke@435	31	#include "incls/_threadLS_windows_x86.cpp.incl"
duke@435	32
duke@435	33	int ThreadLocalStorage::_thread_ptr_offset = 0;
duke@435	34
duke@435	35	static void call_wrapper_dummy() {}
duke@435	36
duke@435	37	// We need to call the os_exception_wrapper once so that it sets
duke@435	38	// up the offset from FS of the thread pointer.
duke@435	39	void ThreadLocalStorage::generate_code_for_get_thread() {
duke@435	40	os::os_exception_wrapper( (java_call_t)call_wrapper_dummy,
duke@435	41	NULL, NULL, NULL, NULL);
duke@435	42	}
duke@435	43
duke@435	44	void ThreadLocalStorage::pd_init() { }
duke@435	45
duke@435	46	void ThreadLocalStorage::pd_set_thread(Thread* thread) {
duke@435	47	os::thread_local_storage_at_put(ThreadLocalStorage::thread_index(), thread);
duke@435	48	}