hotspot/src/os_cpu/linux_x86/vm/assembler_linux_x86_64.cpp

/*
 * Copyright 2003-2008 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_linux_x86_64.cpp.incl"

void MacroAssembler::int3() {
  call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
}

void MacroAssembler::get_thread(Register thread) {
  // call pthread_getspecific
  // void * pthread_getspecific(pthread_key_t key);
   if (thread != rax) {
     pushq(rax);
   }
   pushq(rdi);
   pushq(rsi);
   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, pthread_getspecific)));

   popq(r11);
   popq(rsp);
   popq(r10);
   popq(r9);
   popq(r8);
   popq(rcx);
   popq(rdx);
   popq(rsi);
   popq(rdi);
   if (thread != rax) {
       movq(thread, rax);
       popq(rax);
   }
}