Sun, 10 Feb 2013 22:35:38 -0800
8006430: TraceTypeProfile is a product flag while it should be a diagnostic flag
Summary: make sure all diagnostic and experimental flag kinds are checked in Flag::is_unlocked()
Reviewed-by: kvn
1 /*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #ifndef SHARE_VM_RUNTIME_ATOMIC_HPP
26 #define SHARE_VM_RUNTIME_ATOMIC_HPP
28 #include "memory/allocation.hpp"
30 class Atomic : AllStatic {
31 public:
32 // Atomically store to a location
33 inline static void store (jbyte store_value, jbyte* dest);
34 inline static void store (jshort store_value, jshort* dest);
35 inline static void store (jint store_value, jint* dest);
36 inline static void store (jlong store_value, jlong* dest);
37 inline static void store_ptr(intptr_t store_value, intptr_t* dest);
38 inline static void store_ptr(void* store_value, void* dest);
40 inline static void store (jbyte store_value, volatile jbyte* dest);
41 inline static void store (jshort store_value, volatile jshort* dest);
42 inline static void store (jint store_value, volatile jint* dest);
43 inline static void store (jlong store_value, volatile jlong* dest);
44 inline static void store_ptr(intptr_t store_value, volatile intptr_t* dest);
45 inline static void store_ptr(void* store_value, volatile void* dest);
47 inline static jlong load(volatile jlong* src);
49 // Atomically add to a location, return updated value
50 inline static jint add (jint add_value, volatile jint* dest);
51 inline static intptr_t add_ptr(intptr_t add_value, volatile intptr_t* dest);
52 inline static void* add_ptr(intptr_t add_value, volatile void* dest);
54 static jlong add (jlong add_value, volatile jlong* dest);
56 // Atomically increment location
57 inline static void inc (volatile jint* dest);
58 inline static void inc_ptr(volatile intptr_t* dest);
59 inline static void inc_ptr(volatile void* dest);
61 // Atomically decrement a location
62 inline static void dec (volatile jint* dest);
63 inline static void dec_ptr(volatile intptr_t* dest);
64 inline static void dec_ptr(volatile void* dest);
66 // Performs atomic exchange of *dest with exchange_value. Returns old prior value of *dest.
67 inline static jint xchg(jint exchange_value, volatile jint* dest);
68 static unsigned int xchg(unsigned int exchange_value, volatile unsigned int* dest);
70 inline static intptr_t xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest);
71 inline static void* xchg_ptr(void* exchange_value, volatile void* dest);
73 // Performs atomic compare of *dest and compare_value, and exchanges *dest with exchange_value
74 // if the comparison succeeded. Returns prior value of *dest. Guarantees a two-way memory
75 // barrier across the cmpxchg. I.e., it's really a 'fence_cmpxchg_acquire'.
76 static jbyte cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value);
77 inline static jint cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value);
78 inline static jlong cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value);
80 static unsigned int cmpxchg(unsigned int exchange_value,
81 volatile unsigned int* dest,
82 unsigned int compare_value);
84 inline static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);
85 inline static void* cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value);
86 };
88 #endif // SHARE_VM_RUNTIME_ATOMIC_HPP