Mercurial > hg > truffle
annotate src/os_cpu/linux_zero/vm/thread_linux_zero.hpp @ 1949:058f494c8b6d
Merge
author | trims |
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date | Fri, 10 Dec 2010 15:46:59 -0800 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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1010 | 1 /* |
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2 * Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved. |
1379 | 3 * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc. |
1010 | 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 * | |
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
1010 | 23 * |
24 */ | |
25 | |
26 private: | |
27 ZeroStack _zero_stack; | |
28 ZeroFrame* _top_zero_frame; | |
29 | |
30 void pd_initialize() { | |
31 _top_zero_frame = NULL; | |
32 } | |
33 | |
34 public: | |
35 ZeroStack *zero_stack() { | |
36 return &_zero_stack; | |
37 } | |
38 | |
39 public: | |
40 ZeroFrame *top_zero_frame() { | |
41 return _top_zero_frame; | |
42 } | |
43 void push_zero_frame(ZeroFrame *frame) { | |
44 *(ZeroFrame **) frame = _top_zero_frame; | |
45 _top_zero_frame = frame; | |
46 } | |
47 void pop_zero_frame() { | |
48 zero_stack()->set_sp((intptr_t *) _top_zero_frame + 1); | |
49 _top_zero_frame = *(ZeroFrame **) _top_zero_frame; | |
50 } | |
51 | |
52 public: | |
53 static ByteSize zero_stack_offset() { | |
54 return byte_offset_of(JavaThread, _zero_stack); | |
55 } | |
56 static ByteSize top_zero_frame_offset() { | |
57 return byte_offset_of(JavaThread, _top_zero_frame); | |
58 } | |
59 | |
60 public: | |
61 void record_base_of_stack_pointer() { | |
62 assert(top_zero_frame() == NULL, "junk on stack prior to Java call"); | |
63 } | |
64 void set_base_of_stack_pointer(intptr_t* base_sp) { | |
65 assert(base_sp == NULL, "should be"); | |
66 assert(top_zero_frame() == NULL, "junk on stack after Java call"); | |
67 } | |
68 | |
69 public: | |
70 void set_last_Java_frame() { | |
1505 | 71 set_last_Java_frame(top_zero_frame(), zero_stack()->sp()); |
1010 | 72 } |
73 void reset_last_Java_frame() { | |
1505 | 74 frame_anchor()->zap(); |
75 } | |
76 void set_last_Java_frame(ZeroFrame* fp, intptr_t* sp) { | |
77 frame_anchor()->set(sp, NULL, fp); | |
1379 | 78 } |
1505 | 79 |
80 public: | |
81 ZeroFrame* last_Java_fp() { | |
82 return frame_anchor()->last_Java_fp(); | |
1010 | 83 } |
84 | |
85 private: | |
86 frame pd_last_frame() { | |
87 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); | |
1505 | 88 return frame(last_Java_fp(), last_Java_sp()); |
1010 | 89 } |
90 | |
91 public: | |
1512 | 92 static ByteSize last_Java_fp_offset() { |
93 return byte_offset_of(JavaThread, _anchor) + | |
94 JavaFrameAnchor::last_Java_fp_offset(); | |
95 } | |
96 | |
97 public: | |
1010 | 98 // Check for pending suspend requests and pending asynchronous |
99 // exceptions. There are separate accessors for these, but | |
100 // _suspend_flags is volatile so using them would be unsafe. | |
101 bool has_special_condition_for_native_trans() { | |
102 return _suspend_flags != 0; | |
103 } | |
104 | |
105 public: | |
106 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, | |
107 void* ucontext, | |
108 bool isInJava) { | |
109 ShouldNotCallThis(); | |
110 } | |
111 | |
112 // These routines are only used on cpu architectures that | |
113 // have separate register stacks (Itanium). | |
114 static bool register_stack_overflow() { return false; } | |
115 static void enable_register_stack_guard() {} | |
116 static void disable_register_stack_guard() {} |