assembler_bsd_x86.cpp revision 2721:f08d439fab8c 
1/*
2 * Copyright (c) 1999, 2010, 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#include "precompiled.hpp"
26#include "asm/assembler.hpp"
27#include "assembler_x86.inline.hpp"
28#include "runtime/os.hpp"
29#include "runtime/threadLocalStorage.hpp"
30
31#ifndef _LP64
32void MacroAssembler::int3() {
33  call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
34}
35
36void MacroAssembler::get_thread(Register thread) {
37  movl(thread, rsp);
38  shrl(thread, PAGE_SHIFT);
39
40  ExternalAddress tls_base((address)ThreadLocalStorage::sp_map_addr());
41  Address index(noreg, thread, Address::times_4);
42  ArrayAddress tls(tls_base, index);
43
44  movptr(thread, tls);
45}
46#else
47void MacroAssembler::int3() {
48  call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
49}
50
51void MacroAssembler::get_thread(Register thread) {
52  // call pthread_getspecific
53  // void * pthread_getspecific(pthread_key_t key);
54   if (thread != rax) {
55     push(rax);
56   }
57   push(rdi);
58   push(rsi);
59   push(rdx);
60   push(rcx);
61   push(r8);
62   push(r9);
63   push(r10);
64   // XXX
65   mov(r10, rsp);
66   andq(rsp, -16);
67   push(r10);
68   push(r11);
69
70   movl(rdi, ThreadLocalStorage::thread_index());
71   call(RuntimeAddress(CAST_FROM_FN_PTR(address, pthread_getspecific)));
72
73   pop(r11);
74   pop(rsp);
75   pop(r10);
76   pop(r9);
77   pop(r8);
78   pop(rcx);
79   pop(rdx);
80   pop(rsi);
81   pop(rdi);
82   if (thread != rax) {
83       mov(thread, rax);
84       pop(rax);
85   }
86}
87#endif
88