src/os_cpu/windows_x86/vm/thread_windows_x86.hpp

Wed, 27 Apr 2016 01:25:04 +0800

author
aoqi
date
Wed, 27 Apr 2016 01:25:04 +0800
changeset 0
f90c822e73f8
child 6876
710a3c8b516e
permissions
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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

     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  */
    25 #ifndef OS_CPU_WINDOWS_X86_VM_THREAD_WINDOWS_X86_HPP
    26 #define OS_CPU_WINDOWS_X86_VM_THREAD_WINDOWS_X86_HPP
    28  private:
    29   void pd_initialize() {
    30     _anchor.clear();
    31   }
    33   frame pd_last_frame() {
    34     assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
    35     if (_anchor.last_Java_pc() != NULL) {
    36       return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
    37     } else {
    38       // This will pick up pc from sp
    39       return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp());
    40     }
    41   }
    43  public:
    44   // Mutators are highly dangerous....
    45   intptr_t* last_Java_fp()                       { return _anchor.last_Java_fp(); }
    46   void  set_last_Java_fp(intptr_t* fp)           { _anchor.set_last_Java_fp(fp);   }
    48   void set_base_of_stack_pointer(intptr_t* base_sp)  {}
    51   static ByteSize last_Java_fp_offset()          {
    52     return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
    53   }
    55   intptr_t* base_of_stack_pointer()              { return NULL; }
    56   void record_base_of_stack_pointer()            {}
    58   bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
    59     bool isInJava);
    61    bool pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext, bool isInJava);
    63 private:
    64   bool pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava);
    66  public:
    67   // These routines are only used on cpu architectures that
    68   // have separate register stacks (Itanium).
    69   static bool register_stack_overflow() { return false; }
    70   static void enable_register_stack_guard() {}
    71   static void disable_register_stack_guard() {}
    73 #endif // OS_CPU_WINDOWS_X86_VM_THREAD_WINDOWS_X86_HPP

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