thread_solaris_x86.hpp revision 4802:f2110083203d 
1/*
2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#ifndef OS_CPU_SOLARIS_X86_VM_THREAD_SOLARIS_X86_HPP
26#define OS_CPU_SOLARIS_X86_VM_THREAD_SOLARIS_X86_HPP
27
28 private:
29  void pd_initialize()                           { _anchor.clear(); }
30
31  frame pd_last_frame() {
32    assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
33    if (_anchor.last_Java_pc() != NULL) {
34      return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
35    } else {
36      // This will pick up pc from sp
37      return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp());
38    }
39  }
40
41 public:
42  // Mutators are highly dangerous....
43  intptr_t* last_Java_fp()                       { return _anchor.last_Java_fp(); }
44  void  set_last_Java_fp(intptr_t* fp)           { _anchor.set_last_Java_fp(fp);   }
45
46  void set_base_of_stack_pointer(intptr_t* base_sp)  {}
47
48  static ByteSize last_Java_fp_offset()          {
49    return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
50  }
51
52  intptr_t* base_of_stack_pointer()                  { return NULL; }
53  void record_base_of_stack_pointer()            {}
54
55  bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
56    bool isInJava);
57  bool pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext,
58    bool isInJava);
59private:
60  bool pd_get_top_frame(frame* fr_addr, void* ucontext,
61    bool isInJava);
62public:
63
64  // These routines are only used on cpu architectures that
65  // have separate register stacks (Itanium).
66  static bool register_stack_overflow() { return false; }
67  static void enable_register_stack_guard() {}
68  static void disable_register_stack_guard() {}
69
70#endif // OS_CPU_SOLARIS_X86_VM_THREAD_SOLARIS_X86_HPP
71