Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.inline.hpp @ 2022:2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
Summary: Implemented in-process C native stack frame decoding when symbols are available.
Reviewed-by: coleenp, never
author | zgu |
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date | Sat, 11 Dec 2010 13:20:56 -0500 |
parents | f95d63e2154a |
children | 828eafbd85cc |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |
26 #define OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP | |
27 | |
28 #include "runtime/atomic.hpp" | |
29 #include "runtime/os.hpp" | |
30 #ifdef TARGET_OS_ARCH_windows_x86 | |
31 # include "atomic_windows_x86.inline.hpp" | |
32 # include "orderAccess_windows_x86.inline.hpp" | |
33 #endif | |
34 | |
0 | 35 inline const char* os::file_separator() { return "\\"; } |
36 inline const char* os::line_separator() { return "\r\n"; } | |
37 inline const char* os::path_separator() { return ";"; } | |
38 | |
39 inline const char* os::jlong_format_specifier() { return "%I64d"; } | |
40 inline const char* os::julong_format_specifier() { return "%I64u"; } | |
41 | |
42 // File names are case-insensitive on windows only | |
43 inline int os::file_name_strcmp(const char* s, const char* t) { | |
44 return _stricmp(s, t); | |
45 } | |
46 | |
47 // Used to improve time-sharing on some systems | |
48 inline void os::loop_breaker(int attempts) {} | |
49 | |
50 inline bool os::obsolete_option(const JavaVMOption *option) { | |
51 return false; | |
52 } | |
53 | |
54 inline bool os::uses_stack_guard_pages() { | |
55 return os::win32::is_nt(); | |
56 } | |
57 | |
58 inline bool os::allocate_stack_guard_pages() { | |
59 assert(uses_stack_guard_pages(), "sanity check"); | |
60 return true; | |
61 } | |
62 | |
63 inline int os::readdir_buf_size(const char *path) | |
64 { | |
65 /* As Windows doesn't use the directory entry buffer passed to | |
66 os::readdir() this can be as short as possible */ | |
67 | |
68 return 1; | |
69 } | |
70 | |
71 // Bang the shadow pages if they need to be touched to be mapped. | |
72 inline void os::bang_stack_shadow_pages() { | |
73 // Write to each page of our new frame to force OS mapping. | |
74 // If we decrement stack pointer more than one page | |
75 // the OS may not map an intervening page into our space | |
76 // and may fault on a memory access to interior of our frame. | |
77 address sp = current_stack_pointer(); | |
78 for (int pages = 1; pages <= StackShadowPages; pages++) { | |
79 *((int *)(sp - (pages * vm_page_size()))) = 0; | |
80 } | |
81 } | |
141 | 82 |
83 inline bool os::numa_has_static_binding() { return true; } | |
84 inline bool os::numa_has_group_homing() { return false; } | |
1972 | 85 |
86 #endif // OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |