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comparison src/os_cpu/aix_ppc/vm/thread_aix_ppc.hpp @ 14415:666e6ce3976c
8023038: PPC64 (part 15): Platform files for AIX/PPC64 support
Reviewed-by: kvn
author | simonis |
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date | Fri, 06 Sep 2013 20:16:09 +0200 |
parents | |
children | c5e86c5cd22e |
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14414:b83f7d608548 | 14415:666e6ce3976c |
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1 /* | |
2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. | |
3 * Copyright 2012, 2013 SAP AG. 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 | |
21 * or visit www.oracle.com if you need additional information or have any | |
22 * questions. | |
23 * | |
24 */ | |
25 | |
26 #ifndef OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP | |
27 #define OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP | |
28 | |
29 private: | |
30 void pd_initialize() { | |
31 _anchor.clear(); | |
32 _last_interpreter_fp = NULL; | |
33 } | |
34 | |
35 // The `last' frame is the youngest Java frame on the thread's stack. | |
36 frame pd_last_frame() { | |
37 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); | |
38 | |
39 intptr_t* sp = last_Java_sp(); | |
40 address pc = _anchor.last_Java_pc(); | |
41 | |
42 // Last_Java_pc ist not set, if we come here from compiled code. | |
43 if (pc == NULL) | |
44 pc = (address) *(sp + 2); | |
45 | |
46 return frame(sp, pc); | |
47 } | |
48 | |
49 public: | |
50 void set_base_of_stack_pointer(intptr_t* base_sp) {} | |
51 intptr_t* base_of_stack_pointer() { return NULL; } | |
52 void record_base_of_stack_pointer() {} | |
53 | |
54 // These routines are only used on cpu architectures that | |
55 // have separate register stacks (Itanium). | |
56 static bool register_stack_overflow() { return false; } | |
57 static void enable_register_stack_guard() {} | |
58 static void disable_register_stack_guard() {} | |
59 | |
60 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, | |
61 bool isInJava); | |
62 | |
63 // -Xprof support | |
64 // | |
65 // In order to find the last Java fp from an async profile | |
66 // tick, we store the current interpreter fp in the thread. | |
67 // This value is only valid while we are in the C++ interpreter | |
68 // and profiling. | |
69 protected: | |
70 intptr_t *_last_interpreter_fp; | |
71 | |
72 public: | |
73 static ByteSize last_interpreter_fp_offset() { | |
74 return byte_offset_of(JavaThread, _last_interpreter_fp); | |
75 } | |
76 | |
77 intptr_t* last_interpreter_fp() { return _last_interpreter_fp; } | |
78 | |
79 #endif // OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP |