Mercurial > hg > truffle
comparison src/os_cpu/linux_x86/vm/thread_linux_x86.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 2000-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 private: | |
26 void pd_initialize() { | |
27 _anchor.clear(); | |
28 } | |
29 | |
30 frame pd_last_frame() { | |
31 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); | |
32 if (_anchor.last_Java_pc() != NULL) { | |
33 return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc()); | |
34 } else { | |
35 // This will pick up pc from sp | |
36 return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp()); | |
37 } | |
38 } | |
39 | |
40 public: | |
41 // Mutators are highly dangerous.... | |
42 intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); } | |
43 void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); } | |
44 | |
45 void set_base_of_stack_pointer(intptr_t* base_sp) { | |
46 } | |
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() { | |
53 return NULL; | |
54 } | |
55 void record_base_of_stack_pointer() { | |
56 } | |
57 | |
58 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, | |
59 bool isInJava); | |
60 | |
61 // These routines are only used on cpu architectures that | |
62 // have separate register stacks (Itanium). | |
63 static bool register_stack_overflow() { return false; } | |
64 static void enable_register_stack_guard() {} | |
65 static void disable_register_stack_guard() {} |