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1 /*
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196
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2 * Copyright 2004-2008 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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26 #include "incls/_assembler_solaris_x86_64.cpp.incl"
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27
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28 void MacroAssembler::int3() {
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29 call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
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30 }
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31
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32 void MacroAssembler::get_thread(Register thread) {
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33 // Try to emit a Solaris-specific fast TSD/TLS accessor.
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34 ThreadLocalStorage::pd_tlsAccessMode tlsMode = ThreadLocalStorage::pd_getTlsAccessMode();
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35 if (tlsMode == ThreadLocalStorage::pd_tlsAccessIndirect) { // T1
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36 // Use thread as a temporary: mov r, fs:[0]; mov r, [r+tlsOffset]
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37 emit_byte(Assembler::FS_segment);
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38 movq(thread, Address(NULL, relocInfo::none));
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39 movq(thread, Address(thread, ThreadLocalStorage::pd_getTlsOffset()));
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40 return;
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41 } else if (tlsMode == ThreadLocalStorage::pd_tlsAccessDirect) { // T2
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42 // mov r, fs:[tlsOffset]
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43 emit_byte(Assembler::FS_segment);
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44 ExternalAddress tls_off((address) ThreadLocalStorage::pd_getTlsOffset());
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45 movptr(thread, tls_off);
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46 return;
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47 }
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48
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49 // slow call to of thr_getspecific
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50 // int thr_getspecific(thread_key_t key, void **value);
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51 // Consider using pthread_getspecific instead.
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52
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53 if (thread != rax) {
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54 pushq(rax);
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55 }
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56 pushq(0); // space for return value
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57 pushq(rdi);
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58 pushq(rsi);
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59 leaq(rsi, Address(rsp, 16)); // pass return value address
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60 pushq(rdx);
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61 pushq(rcx);
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62 pushq(r8);
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63 pushq(r9);
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64 pushq(r10);
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65 // XXX
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66 movq(r10, rsp);
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67 andq(rsp, -16);
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68 pushq(r10);
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69 pushq(r11);
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70
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71 movl(rdi, ThreadLocalStorage::thread_index());
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72 call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific)));
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73
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74 popq(r11);
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75 popq(rsp);
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76 popq(r10);
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77 popq(r9);
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78 popq(r8);
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79 popq(rcx);
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80 popq(rdx);
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81 popq(rsi);
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82 popq(rdi);
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83 popq(thread); // load return value
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84 if (thread != rax) {
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85 popq(rax);
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86 }
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87 }
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