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1 /*
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196
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2 * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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304
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26 #include "incls/_assembler_solaris_x86.cpp.incl"
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0
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27
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28
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29 void MacroAssembler::int3() {
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304
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30 push(rax);
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31 push(rdx);
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32 push(rcx);
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0
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33 call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
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304
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34 pop(rcx);
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35 pop(rdx);
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36 pop(rax);
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0
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37 }
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38
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304
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39 #define __ _masm->
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40 #ifndef _LP64
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41 static void slow_call_thr_specific(MacroAssembler* _masm, Register thread) {
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0
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42
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43 // slow call to of thr_getspecific
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44 // int thr_getspecific(thread_key_t key, void **value);
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45 // Consider using pthread_getspecific instead.
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46
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304
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47 __ push(0); // allocate space for return value
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48 if (thread != rax) __ push(rax); // save rax, if caller still wants it
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49 __ push(rcx); // save caller save
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50 __ push(rdx); // save caller save
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0
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51 if (thread != rax) {
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304
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52 __ lea(thread, Address(rsp, 3 * sizeof(int))); // address of return value
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53 } else {
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304
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54 __ lea(thread, Address(rsp, 2 * sizeof(int))); // address of return value
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55 }
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56 __ push(thread); // and pass the address
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57 __ push(ThreadLocalStorage::thread_index()); // the key
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58 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific)));
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59 __ increment(rsp, 2 * wordSize);
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60 __ pop(rdx);
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61 __ pop(rcx);
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62 if (thread != rax) __ pop(rax);
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63 __ pop(thread);
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64
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65 }
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66 #else
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67 static void slow_call_thr_specific(MacroAssembler* _masm, Register thread) {
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68 // slow call to of thr_getspecific
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69 // int thr_getspecific(thread_key_t key, void **value);
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70 // Consider using pthread_getspecific instead.
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71
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72 if (thread != rax) {
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73 __ push(rax);
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0
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74 }
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304
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75 __ push(0); // space for return value
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76 __ push(rdi);
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77 __ push(rsi);
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78 __ lea(rsi, Address(rsp, 16)); // pass return value address
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79 __ push(rdx);
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80 __ push(rcx);
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81 __ push(r8);
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82 __ push(r9);
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83 __ push(r10);
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84 // XXX
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85 __ mov(r10, rsp);
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86 __ andptr(rsp, -16);
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87 __ push(r10);
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88 __ push(r11);
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89
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90 __ movl(rdi, ThreadLocalStorage::thread_index());
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91 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific)));
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92
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93 __ pop(r11);
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94 __ pop(rsp);
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95 __ pop(r10);
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96 __ pop(r9);
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97 __ pop(r8);
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98 __ pop(rcx);
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99 __ pop(rdx);
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100 __ pop(rsi);
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101 __ pop(rdi);
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102 __ pop(thread); // load return value
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103 if (thread != rax) {
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104 __ pop(rax);
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105 }
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0
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106 }
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304
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107 #endif //LP64
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108
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109 void MacroAssembler::get_thread(Register thread) {
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110
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111 int segment = NOT_LP64(Assembler::GS_segment) LP64_ONLY(Assembler::FS_segment);
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112 // Try to emit a Solaris-specific fast TSD/TLS accessor.
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113 ThreadLocalStorage::pd_tlsAccessMode tlsMode = ThreadLocalStorage::pd_getTlsAccessMode ();
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114 if (tlsMode == ThreadLocalStorage::pd_tlsAccessIndirect) { // T1
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115 // Use thread as a temporary: mov r, gs:[0]; mov r, [r+tlsOffset]
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116 emit_byte (segment);
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117 // ExternalAddress doesn't work because it can't take NULL
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118 AddressLiteral null(0, relocInfo::none);
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119 movptr (thread, null);
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120 movptr(thread, Address(thread, ThreadLocalStorage::pd_getTlsOffset())) ;
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121 return ;
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122 } else
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123 if (tlsMode == ThreadLocalStorage::pd_tlsAccessDirect) { // T2
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124 // mov r, gs:[tlsOffset]
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125 emit_byte (segment);
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126 AddressLiteral tls_off((address)ThreadLocalStorage::pd_getTlsOffset(), relocInfo::none);
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127 movptr (thread, tls_off);
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128 return ;
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129 }
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130
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131 slow_call_thr_specific(this, thread);
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132
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133 }
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