Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.inline.hpp @ 20338:8d5f66b42c53
8055525: Bigapp weblogic+medrec fails to startup after JDK-8038423
Summary: If large pages are enabled and configured in Linux, the VM always pre-commits the entire space. The VM fails verification of the commit of the initial heap because some internal data structure marked all memory pages of the heap as committed during initialization. This makes the code think that we attempted a double-commit during first allocation of the heap. Remove the initial marking of memory pages of the heap to committed.
Reviewed-by: mgerdin
author | tschatzl |
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date | Wed, 20 Aug 2014 14:34:40 +0200 |
parents | ce8f6bb717c9 |
children | 7848fc12602b |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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 * | |
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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 | |
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28 #include "runtime/atomic.inline.hpp" |
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29 #include "runtime/orderAccess.inline.hpp" |
1972 | 30 #include "runtime/os.hpp" |
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31 |
0 | 32 inline const char* os::file_separator() { return "\\"; } |
33 inline const char* os::line_separator() { return "\r\n"; } | |
34 inline const char* os::path_separator() { return ";"; } | |
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35 inline const char* os::dll_file_extension() { return ".dll"; } |
0 | 36 |
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37 inline const int os::default_file_open_flags() { return O_BINARY | O_NOINHERIT;} |
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38 |
0 | 39 // File names are case-insensitive on windows only |
40 inline int os::file_name_strcmp(const char* s, const char* t) { | |
41 return _stricmp(s, t); | |
42 } | |
43 | |
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44 inline void os::dll_unload(void *lib) { |
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45 ::FreeLibrary((HMODULE)lib); |
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46 } |
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47 |
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48 inline void* os::dll_lookup(void *lib, const char *name) { |
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49 return (void*)::GetProcAddress((HMODULE)lib, name); |
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50 } |
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51 |
0 | 52 // Used to improve time-sharing on some systems |
53 inline void os::loop_breaker(int attempts) {} | |
54 | |
55 inline bool os::obsolete_option(const JavaVMOption *option) { | |
56 return false; | |
57 } | |
58 | |
59 inline bool os::uses_stack_guard_pages() { | |
60 return os::win32::is_nt(); | |
61 } | |
62 | |
63 inline bool os::allocate_stack_guard_pages() { | |
64 assert(uses_stack_guard_pages(), "sanity check"); | |
65 return true; | |
66 } | |
67 | |
68 inline int os::readdir_buf_size(const char *path) | |
69 { | |
70 /* As Windows doesn't use the directory entry buffer passed to | |
71 os::readdir() this can be as short as possible */ | |
72 | |
73 return 1; | |
74 } | |
75 | |
76 // Bang the shadow pages if they need to be touched to be mapped. | |
77 inline void os::bang_stack_shadow_pages() { | |
78 // Write to each page of our new frame to force OS mapping. | |
79 // If we decrement stack pointer more than one page | |
80 // the OS may not map an intervening page into our space | |
81 // and may fault on a memory access to interior of our frame. | |
82 address sp = current_stack_pointer(); | |
83 for (int pages = 1; pages <= StackShadowPages; pages++) { | |
84 *((int *)(sp - (pages * vm_page_size()))) = 0; | |
85 } | |
86 } | |
141 | 87 |
88 inline bool os::numa_has_static_binding() { return true; } | |
89 inline bool os::numa_has_group_homing() { return false; } | |
1972 | 90 |
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91 inline size_t os::read(int fd, void *buf, unsigned int nBytes) { |
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92 return ::read(fd, buf, nBytes); |
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93 } |
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94 |
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95 inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
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96 return ::read(fd, buf, nBytes); |
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97 } |
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98 |
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99 inline size_t os::write(int fd, const void *buf, unsigned int nBytes) { |
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100 return ::write(fd, buf, nBytes); |
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101 } |
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102 |
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103 inline int os::close(int fd) { |
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104 return ::close(fd); |
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105 } |
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106 |
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107 #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) \ |
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108 os::win32::call_test_func_with_wrapper(f) |
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109 |
1972 | 110 #endif // OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |