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annotate src/os_cpu/aix_ppc/vm/thread_aix_ppc.hpp @ 20693:31d3306aad29 jdk8u40-b18

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Added tag hs25.40-b22 for changeset bc5a90a4db47
author amurillo
date Fri, 05 Dec 2014 09:47:16 -0800
parents 666e6ce3976c
children c5e86c5cd22e
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666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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1 /*
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2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * Copyright 2012, 2013 SAP AG. All rights reserved.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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21 * or visit www.oracle.com if you need additional information or have any
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22 * questions.
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23 *
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24 */
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25
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
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26 #ifndef OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP
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27 #define OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP
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28
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29 private:
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30 void pd_initialize() {
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31 _anchor.clear();
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32 _last_interpreter_fp = NULL;
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33 }
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34
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35 // The `last' frame is the youngest Java frame on the thread's stack.
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36 frame pd_last_frame() {
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37 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
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38
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39 intptr_t* sp = last_Java_sp();
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40 address pc = _anchor.last_Java_pc();
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41
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42 // Last_Java_pc ist not set, if we come here from compiled code.
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43 if (pc == NULL)
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44 pc = (address) *(sp + 2);
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45
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46 return frame(sp, pc);
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47 }
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48
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49 public:
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50 void set_base_of_stack_pointer(intptr_t* base_sp) {}
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51 intptr_t* base_of_stack_pointer() { return NULL; }
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52 void record_base_of_stack_pointer() {}
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53
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54 // These routines are only used on cpu architectures that
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55 // have separate register stacks (Itanium).
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56 static bool register_stack_overflow() { return false; }
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57 static void enable_register_stack_guard() {}
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58 static void disable_register_stack_guard() {}
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59
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60 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
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61 bool isInJava);
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62
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63 // -Xprof support
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64 //
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65 // In order to find the last Java fp from an async profile
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66 // tick, we store the current interpreter fp in the thread.
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67 // This value is only valid while we are in the C++ interpreter
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68 // and profiling.
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69 protected:
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70 intptr_t *_last_interpreter_fp;
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71
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72 public:
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73 static ByteSize last_interpreter_fp_offset() {
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74 return byte_offset_of(JavaThread, _last_interpreter_fp);
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75 }
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76
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77 intptr_t* last_interpreter_fp() { return _last_interpreter_fp; }
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78
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79 #endif // OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP