Mercurial > hg > truffle
annotate src/share/vm/utilities/accessFlags.cpp @ 21467:d4db9d812c8d
Make PEA handling of node virtualization customizable
author | Paul Woegerer <paul.woegerer@oracle.com> |
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date | Fri, 22 May 2015 10:50:43 +0200 |
parents | 7848fc12602b |
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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 #include "precompiled.hpp" |
26 #include "oops/oop.inline.hpp" | |
27 #include "utilities/accessFlags.hpp" | |
28 #ifdef TARGET_OS_FAMILY_linux | |
29 # include "os_linux.inline.hpp" | |
30 #endif | |
31 #ifdef TARGET_OS_FAMILY_solaris | |
32 # include "os_solaris.inline.hpp" | |
33 #endif | |
34 #ifdef TARGET_OS_FAMILY_windows | |
35 # include "os_windows.inline.hpp" | |
36 #endif | |
14411 | 37 #ifdef TARGET_OS_FAMILY_aix |
38 # include "os_aix.inline.hpp" | |
39 #endif | |
3960 | 40 #ifdef TARGET_OS_FAMILY_bsd |
41 # include "os_bsd.inline.hpp" | |
42 #endif | |
0 | 43 |
44 | |
45 void AccessFlags::atomic_set_bits(jint bits) { | |
46 // Atomically update the flags with the bits given | |
47 jint old_flags, new_flags, f; | |
48 do { | |
49 old_flags = _flags; | |
50 new_flags = old_flags | bits; | |
51 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); | |
52 } while(f != old_flags); | |
53 } | |
54 | |
55 void AccessFlags::atomic_clear_bits(jint bits) { | |
56 // Atomically update the flags with the bits given | |
57 jint old_flags, new_flags, f; | |
58 do { | |
59 old_flags = _flags; | |
60 new_flags = old_flags & ~bits; | |
61 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); | |
62 } while(f != old_flags); | |
63 } | |
64 | |
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65 // Returns true iff this thread succeeded setting the bit. |
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66 bool AccessFlags::atomic_set_one_bit(jint bit) { |
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67 // Atomically update the flags with the bit given |
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68 jint old_flags, new_flags, f; |
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69 bool is_setting_bit = false; |
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70 do { |
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71 old_flags = _flags; |
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72 new_flags = old_flags | bit; |
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73 is_setting_bit = old_flags != new_flags; |
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74 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); |
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75 } while(f != old_flags); |
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76 |
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77 return is_setting_bit; |
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78 } |
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79 |
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80 #if !defined(PRODUCT) || INCLUDE_JVMTI |
0 | 81 |
82 void AccessFlags::print_on(outputStream* st) const { | |
83 if (is_public ()) st->print("public " ); | |
84 if (is_private ()) st->print("private " ); | |
85 if (is_protected ()) st->print("protected " ); | |
86 if (is_static ()) st->print("static " ); | |
87 if (is_final ()) st->print("final " ); | |
88 if (is_synchronized()) st->print("synchronized "); | |
89 if (is_volatile ()) st->print("volatile " ); | |
90 if (is_transient ()) st->print("transient " ); | |
91 if (is_native ()) st->print("native " ); | |
92 if (is_interface ()) st->print("interface " ); | |
93 if (is_abstract ()) st->print("abstract " ); | |
94 if (is_strict ()) st->print("strict " ); | |
95 if (is_synthetic ()) st->print("synthetic " ); | |
96 if (is_old ()) st->print("{old} " ); | |
97 if (is_obsolete ()) st->print("{obsolete} " ); | |
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98 if (on_stack ()) st->print("{on_stack} " ); |
0 | 99 } |
100 | |
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101 #endif // !PRODUCT || INCLUDE_JVMTI |
0 | 102 |
103 void accessFlags_init() { | |
104 assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags"); | |
105 } |