thread_solaris_x86.hpp revision 0:a61af66fc99e 
1/*
2 * Copyright 1999-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 private:
26  void pd_initialize()                           { _anchor.clear(); }
27
28  frame pd_last_frame() {
29    assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
30    if (_anchor.last_Java_pc() != NULL) {
31      return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
32    } else {
33      // This will pick up pc from sp
34      return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp());
35    }
36  }
37
38 public:
39  // Mutators are highly dangerous....
40  intptr_t* last_Java_fp()                       { return _anchor.last_Java_fp(); }
41  void  set_last_Java_fp(intptr_t* fp)           { _anchor.set_last_Java_fp(fp);   }
42
43  void set_base_of_stack_pointer(intptr_t* base_sp)  {}
44
45  static ByteSize last_Java_fp_offset()          {
46    return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
47  }
48
49  intptr_t* base_of_stack_pointer()                  { return NULL; }
50  void record_base_of_stack_pointer()            {}
51
52  bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
53    bool isInJava);
54
55  // These routines are only used on cpu architectures that
56  // have separate register stacks (Itanium).
57  static bool register_stack_overflow() { return false; }
58  static void enable_register_stack_guard() {}
59  static void disable_register_stack_guard() {}
60