hotspot/src/share/vm/utilities/accessFlags.cpp
author dlong
Tue, 24 Jan 2012 18:00:54 -0500
changeset 11727 c5dfa2639359
parent 10565 dc90c239f4ec
child 13728 882756847a04
permissions -rw-r--r--
7130319: C2: running with -XX:+PrintOptoAssembly crashes the VM with assert(false) failed: bad tag in log Summary: Relax assert to allow the VMThread to close the log while the compiler thread is still writing to it. Reviewed-by: dholmes, never Contributed-by: dean.long@oracle.com
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
     2
 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    25
#include "precompiled.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    26
#include "oops/oop.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    27
#include "utilities/accessFlags.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    28
#ifdef TARGET_OS_FAMILY_linux
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    29
# include "os_linux.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    30
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    31
#ifdef TARGET_OS_FAMILY_solaris
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    32
# include "os_solaris.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    33
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    34
#ifdef TARGET_OS_FAMILY_windows
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    35
# include "os_windows.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 5547
diff changeset
    36
#endif
10565
dc90c239f4ec 7089790: integrate bsd-port changes
never
parents: 7397
diff changeset
    37
#ifdef TARGET_OS_FAMILY_bsd
dc90c239f4ec 7089790: integrate bsd-port changes
never
parents: 7397
diff changeset
    38
# include "os_bsd.inline.hpp"
dc90c239f4ec 7089790: integrate bsd-port changes
never
parents: 7397
diff changeset
    39
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    40
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
void AccessFlags::atomic_set_bits(jint bits) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
  // Atomically update the flags with the bits given
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
  jint old_flags, new_flags, f;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
  do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
    old_flags = _flags;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    47
    new_flags = old_flags | bits;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    48
    f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    49
  } while(f != old_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
void AccessFlags::atomic_clear_bits(jint bits) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
  // Atomically update the flags with the bits given
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
  jint old_flags, new_flags, f;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    55
  do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    56
    old_flags = _flags;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    57
    new_flags = old_flags & ~bits;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    58
    f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    59
  } while(f != old_flags);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    60
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    61
489c9b5090e2 Initial load
duke
parents:
diff changeset
    62
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    63
489c9b5090e2 Initial load
duke
parents:
diff changeset
    64
void AccessFlags::print_on(outputStream* st) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    65
  if (is_public      ()) st->print("public "      );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    66
  if (is_private     ()) st->print("private "     );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    67
  if (is_protected   ()) st->print("protected "   );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    68
  if (is_static      ()) st->print("static "      );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    69
  if (is_final       ()) st->print("final "       );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    70
  if (is_synchronized()) st->print("synchronized ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
  if (is_volatile    ()) st->print("volatile "    );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
  if (is_transient   ()) st->print("transient "   );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
  if (is_native      ()) st->print("native "      );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
  if (is_interface   ()) st->print("interface "   );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
  if (is_abstract    ()) st->print("abstract "    );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    76
  if (is_strict      ()) st->print("strict "      );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
  if (is_synthetic   ()) st->print("synthetic "   );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
  if (is_old         ()) st->print("{old} "       );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
  if (is_obsolete    ()) st->print("{obsolete} "  );
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
void accessFlags_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
  assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
}