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comparison src/os_cpu/windows_x86/vm/assembler_windows_x86_64.cpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children 7793bd37a336
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2003-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 #include "incls/_precompiled.incl"
26 #include "incls/_assembler_windows_x86_64.cpp.incl"
27
28
29 void MacroAssembler::int3() {
30 emit_byte(0xCC);
31 }
32
33 // call (Thread*)TlsGetValue(thread_index());
34 void MacroAssembler::get_thread(Register thread) {
35 if (thread != rax) {
36 pushq(rax);
37 }
38 pushq(rdi);
39 pushq(rsi);
40 pushq(rdx);
41 pushq(rcx);
42 pushq(r8);
43 pushq(r9);
44 pushq(r10);
45 // XXX
46 movq(r10, rsp);
47 andq(rsp, -16);
48 pushq(r10);
49 pushq(r11);
50
51 movl(c_rarg0, ThreadLocalStorage::thread_index());
52 call(RuntimeAddress((address)TlsGetValue));
53
54 popq(r11);
55 popq(rsp);
56 popq(r10);
57 popq(r9);
58 popq(r8);
59 popq(rcx);
60 popq(rdx);
61 popq(rsi);
62 popq(rdi);
63 if (thread != rax) {
64 movq(thread, rax);
65 popq(rax);
66 }
67 }
68
69 bool MacroAssembler::needs_explicit_null_check(int offset) {
70 return offset < 0 || (int)os::vm_page_size() <= offset;
71 }