thread_aix_ppc.hpp revision 13544:61c0ae8bee4e 
1/*
2 * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012, 2013 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25
26#ifndef OS_CPU_AIX_PPC_VM_THREAD_AIX_PPC_HPP
27#define OS_CPU_AIX_PPC_VM_THREAD_AIX_PPC_HPP
28
29 private:
30  void pd_initialize() {
31    _anchor.clear();
32  }
33
34  // The `last' frame is the youngest Java frame on the thread's stack.
35  frame pd_last_frame() {
36    assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
37
38    intptr_t* sp = last_Java_sp();
39    address pc = _anchor.last_Java_pc();
40
41    // Last_Java_pc ist not set, if we come here from compiled code.
42    if (pc == NULL)
43      pc =  (address) *(sp + 2);
44
45    return frame(sp, pc);
46  }
47
48 public:
49  void set_base_of_stack_pointer(intptr_t* base_sp) {}
50  intptr_t* base_of_stack_pointer()   { return NULL; }
51  void record_base_of_stack_pointer() {}
52
53  // These routines are only used on cpu architectures that
54  // have separate register stacks (Itanium).
55  static bool register_stack_overflow() { return false; }
56  static void enable_register_stack_guard() {}
57  static void disable_register_stack_guard() {}
58
59  bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
60                                           bool isInJava);
61
62#endif // OS_CPU_AIX_PPC_VM_THREAD_AIX_PPC_HPP
63