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);
  59 private:
  60   bool pd_get_top_frame(frame* fr_addr, void* ucontext,
  61     bool isInJava);
  62 public:
  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