| /* |
| * Copyright 2004-2005 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| #include "incls/_precompiled.incl" |
| #include "incls/_assembler_solaris_x86_64.cpp.incl" |
| |
| void MacroAssembler::int3() { |
| call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint))); |
| } |
| |
| void MacroAssembler::get_thread(Register thread) { |
| // Try to emit a Solaris-specific fast TSD/TLS accessor. |
| ThreadLocalStorage::pd_tlsAccessMode tlsMode = ThreadLocalStorage::pd_getTlsAccessMode(); |
| if (tlsMode == ThreadLocalStorage::pd_tlsAccessIndirect) { // T1 |
| // Use thread as a temporary: mov r, fs:[0]; mov r, [r+tlsOffset] |
| emit_byte(Assembler::FS_segment); |
| movq(thread, Address(NULL, relocInfo::none)); |
| movq(thread, Address(thread, ThreadLocalStorage::pd_getTlsOffset())); |
| return; |
| } else if (tlsMode == ThreadLocalStorage::pd_tlsAccessDirect) { // T2 |
| // mov r, fs:[tlsOffset] |
| emit_byte(Assembler::FS_segment); |
| ExternalAddress tls_off((address) ThreadLocalStorage::pd_getTlsOffset()); |
| movptr(thread, tls_off); |
| return; |
| } |
| |
| // slow call to of thr_getspecific |
| // int thr_getspecific(thread_key_t key, void **value); |
| // Consider using pthread_getspecific instead. |
| |
| if (thread != rax) { |
| pushq(rax); |
| } |
| pushq(0); // space for return value |
| pushq(rdi); |
| pushq(rsi); |
| leaq(rsi, Address(rsp, 16)); // pass return value address |
| pushq(rdx); |
| pushq(rcx); |
| pushq(r8); |
| pushq(r9); |
| pushq(r10); |
| // XXX |
| movq(r10, rsp); |
| andq(rsp, -16); |
| pushq(r10); |
| pushq(r11); |
| |
| movl(rdi, ThreadLocalStorage::thread_index()); |
| call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific))); |
| |
| popq(r11); |
| popq(rsp); |
| popq(r10); |
| popq(r9); |
| popq(r8); |
| popq(rcx); |
| popq(rdx); |
| popq(rsi); |
| popq(rdi); |
| popq(thread); // load return value |
| if (thread != rax) { |
| popq(rax); |
| } |
| } |
| |
| bool MacroAssembler::needs_explicit_null_check(int offset) { |
| // Identical to Sparc/Solaris code |
| bool offset_in_first_page = 0 <= offset && offset < os::vm_page_size(); |
| return !offset_in_first_page; |
| } |