Mercurial > hg > truffle

annotate src/share/vm/utilities/accessFlags.cpp @ 20804:7848fc12602b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge with jdk8u40-b25
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Tue, 07 Apr 2015 14:58:49 +0200
parents 52b4284cb496 b12a2a9b05ca
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
8021
8d9fc28831cc 7182152: Instrumentation hot swap test incorrect monitor count
dcubed
parents: 6725
diff changeset
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
26 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
27 #include "utilities/accessFlags.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
28 #ifdef TARGET_OS_FAMILY_linux
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
29 # include "os_linux.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
30 #endif
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
31 #ifdef TARGET_OS_FAMILY_solaris
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
32 # include "os_solaris.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
33 #endif
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
34 #ifdef TARGET_OS_FAMILY_windows
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
35 # include "os_windows.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
36 #endif
14411
bdd155477289 8023033: PPC64 (part 13): basic changes for AIX
goetz
parents: 8021
diff changeset
37 #ifdef TARGET_OS_FAMILY_aix
bdd155477289 8023033: PPC64 (part 13): basic changes for AIX
goetz
parents: 8021
diff changeset
38 # include "os_aix.inline.hpp"
bdd155477289 8023033: PPC64 (part 13): basic changes for AIX
goetz
parents: 8021
diff changeset
39 #endif
3960
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 1972
diff changeset
40 #ifdef TARGET_OS_FAMILY_bsd
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 1972
diff changeset
41 # include "os_bsd.inline.hpp"
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 1972
diff changeset
42 #endif
0
a61af66fc99e Initial load
duke
parents:
diff changeset
43
a61af66fc99e Initial load
duke
parents:
diff changeset
44
a61af66fc99e Initial load
duke
parents:
diff changeset
45 void AccessFlags::atomic_set_bits(jint bits) {
a61af66fc99e Initial load
duke
parents:
diff changeset
46 // Atomically update the flags with the bits given
a61af66fc99e Initial load
duke
parents:
diff changeset
47 jint old_flags, new_flags, f;
a61af66fc99e Initial load
duke
parents:
diff changeset
48 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
49 old_flags = _flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
50 new_flags = old_flags | bits;
a61af66fc99e Initial load
duke
parents:
diff changeset
51 f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
52 } while(f != old_flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
53 }
a61af66fc99e Initial load
duke
parents:
diff changeset
54
a61af66fc99e Initial load
duke
parents:
diff changeset
55 void AccessFlags::atomic_clear_bits(jint bits) {
a61af66fc99e Initial load
duke
parents:
diff changeset
56 // Atomically update the flags with the bits given
a61af66fc99e Initial load
duke
parents:
diff changeset
57 jint old_flags, new_flags, f;
a61af66fc99e Initial load
duke
parents:
diff changeset
58 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
59 old_flags = _flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
60 new_flags = old_flags & ~bits;
a61af66fc99e Initial load
duke
parents:
diff changeset
61 f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
62 } while(f != old_flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
63 }
a61af66fc99e Initial load
duke
parents:
diff changeset
64
20619
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
65 // Returns true iff this thread succeeded setting the bit.
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
66 bool AccessFlags::atomic_set_one_bit(jint bit) {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
67 // Atomically update the flags with the bit given
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
68 jint old_flags, new_flags, f;
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
69 bool is_setting_bit = false;
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
70 do {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
71 old_flags = _flags;
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
72 new_flags = old_flags | bit;
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
73 is_setting_bit = old_flags != new_flags;
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
74 f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
75 } while(f != old_flags);
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
76
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
77 return is_setting_bit;
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
78 }
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 14411
diff changeset
79
8021
8d9fc28831cc 7182152: Instrumentation hot swap test incorrect monitor count
dcubed
parents: 6725
diff changeset
80 #if !defined(PRODUCT) || INCLUDE_JVMTI
0
a61af66fc99e Initial load
duke
parents:
diff changeset
81
a61af66fc99e Initial load
duke
parents:
diff changeset
82 void AccessFlags::print_on(outputStream* st) const {
a61af66fc99e Initial load
duke
parents:
diff changeset
83 if (is_public ()) st->print("public " );
a61af66fc99e Initial load
duke
parents:
diff changeset
84 if (is_private ()) st->print("private " );
a61af66fc99e Initial load
duke
parents:
diff changeset
85 if (is_protected ()) st->print("protected " );
a61af66fc99e Initial load
duke
parents:
diff changeset
86 if (is_static ()) st->print("static " );
a61af66fc99e Initial load
duke
parents:
diff changeset
87 if (is_final ()) st->print("final " );
a61af66fc99e Initial load
duke
parents:
diff changeset
88 if (is_synchronized()) st->print("synchronized ");
a61af66fc99e Initial load
duke
parents:
diff changeset
89 if (is_volatile ()) st->print("volatile " );
a61af66fc99e Initial load
duke
parents:
diff changeset
90 if (is_transient ()) st->print("transient " );
a61af66fc99e Initial load
duke
parents:
diff changeset
91 if (is_native ()) st->print("native " );
a61af66fc99e Initial load
duke
parents:
diff changeset
92 if (is_interface ()) st->print("interface " );
a61af66fc99e Initial load
duke
parents:
diff changeset
93 if (is_abstract ()) st->print("abstract " );
a61af66fc99e Initial load
duke
parents:
diff changeset
94 if (is_strict ()) st->print("strict " );
a61af66fc99e Initial load
duke
parents:
diff changeset
95 if (is_synthetic ()) st->print("synthetic " );
a61af66fc99e Initial load
duke
parents:
diff changeset
96 if (is_old ()) st->print("{old} " );
a61af66fc99e Initial load
duke
parents:
diff changeset
97 if (is_obsolete ()) st->print("{obsolete} " );
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
98 if (on_stack ()) st->print("{on_stack} " );
0
a61af66fc99e Initial load
duke
parents:
diff changeset
99 }
a61af66fc99e Initial load
duke
parents:
diff changeset
100
8021
8d9fc28831cc 7182152: Instrumentation hot swap test incorrect monitor count
dcubed
parents: 6725
diff changeset
101 #endif // !PRODUCT || INCLUDE_JVMTI
0
a61af66fc99e Initial load
duke
parents:
diff changeset
102
a61af66fc99e Initial load
duke
parents:
diff changeset
103 void accessFlags_init() {
a61af66fc99e Initial load
duke
parents:
diff changeset
104 assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");
a61af66fc99e Initial load
duke
parents:
diff changeset
105 }