hotspot/src/os_cpu/windows_x86/vm/assembler_windows_x86_32.cpp
changeset 1107 5d33babdf375
parent 1106 a4639ed3162c
parent 1105 40fa1299b995
child 1111 a98b896e5485
--- a/hotspot/src/os_cpu/windows_x86/vm/assembler_windows_x86_32.cpp	Thu Aug 28 11:05:22 2008 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,60 +0,0 @@
-/*
- * Copyright 1999-2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- */
-
-#include "incls/_precompiled.incl"
-#include "incls/_assembler_windows_x86_32.cpp.incl"
-
-
-void MacroAssembler::int3() {
-  emit_byte(0xCC);
-}
-
-//  The current scheme to accelerate access to the thread
-//  pointer is to store the current thread in the os_exception_wrapper
-//  and reference the current thread from stubs and compiled code
-//  via the FS register.  FS[0] contains a pointer to the structured
-//  exception block which is actually a stack address.  The first time
-//  we call the os exception wrapper, we calculate and store the
-//  offset from this exception block and use that offset here.
-//
-//  The last mechanism we used was problematic in that the
-//  the offset we had hard coded in the VM kept changing as Microsoft
-//  evolved the OS.
-//
-// Warning: This mechanism assumes that we only attempt to get the
-//          thread when we are nested below a call wrapper.
-//
-// movl reg, fs:[0]                        Get exeception pointer
-// movl reg, [reg + thread_ptr_offset]     Load thread
-//
-void MacroAssembler::get_thread(Register thread) {
-  // can't use ExternalAddress because it can't take NULL
-  AddressLiteral null(0, relocInfo::none);
-
-  prefix(FS_segment);
-  movptr(thread, null);
-  assert(ThreadLocalStorage::get_thread_ptr_offset() != 0,
-         "Thread Pointer Offset has not been initialized");
-  movl(thread, Address(thread, ThreadLocalStorage::get_thread_ptr_offset()));
-}