1 /*
2 * Copyright (c) 1999, 2008, 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 "incls/_precompiled.incl"
26 #include "incls/_assembler_solaris_x86.cpp.incl"
27
28
29 void MacroAssembler::int3() {
30 push(rax);
31 push(rdx);
32 push(rcx);
33 call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
34 pop(rcx);
35 pop(rdx);
36 pop(rax);
37 }
38
39 #define __ _masm->
40 #ifndef _LP64
41 static void slow_call_thr_specific(MacroAssembler* _masm, Register thread) {
42
43 // slow call to of thr_getspecific
44 // int thr_getspecific(thread_key_t key, void **value);
45 // Consider using pthread_getspecific instead.
46
47 __ push(0); // allocate space for return value
48 if (thread != rax) __ push(rax); // save rax, if caller still wants it
49 __ push(rcx); // save caller save
50 __ push(rdx); // save caller save
51 if (thread != rax) {
52 __ lea(thread, Address(rsp, 3 * sizeof(int))); // address of return value
53 } else {
54 __ lea(thread, Address(rsp, 2 * sizeof(int))); // address of return value
55 }
56 __ push(thread); // and pass the address
57 __ push(ThreadLocalStorage::thread_index()); // the key
58 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific)));
59 __ increment(rsp, 2 * wordSize);
60 __ pop(rdx);
61 __ pop(rcx);
62 if (thread != rax) __ pop(rax);
63 __ pop(thread);
64
65 }
66 #else
67 static void slow_call_thr_specific(MacroAssembler* _masm, Register thread) {
68 // slow call to of thr_getspecific
69 // int thr_getspecific(thread_key_t key, void **value);
70 // Consider using pthread_getspecific instead.
71
72 if (thread != rax) {
73 __ push(rax);
74 }
75 __ push(0); // space for return value
76 __ push(rdi);
77 __ push(rsi);
78 __ lea(rsi, Address(rsp, 16)); // pass return value address
79 __ push(rdx);
80 __ push(rcx);
81 __ push(r8);
82 __ push(r9);
83 __ push(r10);
84 // XXX
85 __ mov(r10, rsp);
86 __ andptr(rsp, -16);
87 __ push(r10);
88 __ push(r11);
89
90 __ movl(rdi, ThreadLocalStorage::thread_index());
91 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific)));
92
93 __ pop(r11);
94 __ pop(rsp);
95 __ pop(r10);
96 __ pop(r9);
97 __ pop(r8);
98 __ pop(rcx);
99 __ pop(rdx);
100 __ pop(rsi);
101 __ pop(rdi);
102 __ pop(thread); // load return value
103 if (thread != rax) {
104 __ pop(rax);
105 }
106 }
107 #endif //LP64
108
109 void MacroAssembler::get_thread(Register thread) {
110
111 int segment = NOT_LP64(Assembler::GS_segment) LP64_ONLY(Assembler::FS_segment);
112 // Try to emit a Solaris-specific fast TSD/TLS accessor.
113 ThreadLocalStorage::pd_tlsAccessMode tlsMode = ThreadLocalStorage::pd_getTlsAccessMode ();
114 if (tlsMode == ThreadLocalStorage::pd_tlsAccessIndirect) { // T1
115 // Use thread as a temporary: mov r, gs:[0]; mov r, [r+tlsOffset]
116 emit_byte (segment);
117 // ExternalAddress doesn't work because it can't take NULL
118 AddressLiteral null(0, relocInfo::none);
119 movptr (thread, null);
120 movptr(thread, Address(thread, ThreadLocalStorage::pd_getTlsOffset())) ;
121 return ;
122 } else
123 if (tlsMode == ThreadLocalStorage::pd_tlsAccessDirect) { // T2
124 // mov r, gs:[tlsOffset]
125 emit_byte (segment);
126 AddressLiteral tls_off((address)ThreadLocalStorage::pd_getTlsOffset(), relocInfo::none);
127 movptr (thread, tls_off);
128 return ;
129 }
130
131 slow_call_thr_specific(this, thread);
132
133 }