1/*
2 * Copyright (c) 2015, 2019, 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 */
24#ifndef SHARE_LOGGING_LOGTAG_HPP
25#define SHARE_LOGGING_LOGTAG_HPP
26
27#include "logging/logTag_ext.hpp"
28#include "memory/allocation.hpp"
29#include "utilities/globalDefinitions.hpp"
30
31// List of available logging tags. New tags should be added here.
32// (The tags 'all', 'disable' and 'help' are special tags that can
33// not be used in log calls, and should not be listed below.)
34#define LOG_TAG_LIST \
35 LOG_TAG(add) \
36 LOG_TAG(age) \
37 LOG_TAG(alloc) \
38 LOG_TAG(aot) \
39 LOG_TAG(annotation) \
40 LOG_TAG(arguments) \
41 LOG_TAG(attach) \
42 LOG_TAG(barrier) \
43 LOG_TAG(biasedlocking) \
44 LOG_TAG(blocks) \
45 LOG_TAG(bot) \
46 LOG_TAG(breakpoint) \
47 LOG_TAG(bytecode) \
48 LOG_TAG(cds) \
49 LOG_TAG(census) \
50 LOG_TAG(class) \
51 LOG_TAG(classhisto) \
52 LOG_TAG(cleanup) \
53 LOG_TAG(codecache) \
54 LOG_TAG(compaction) \
55 LOG_TAG(compilation) \
56 LOG_TAG(constraints) \
57 LOG_TAG(constantpool) \
58 LOG_TAG(container) \
59 LOG_TAG(coops) \
60 LOG_TAG(cpu) \
61 LOG_TAG(cset) \
62 LOG_TAG(data) \
63 LOG_TAG(datacreation) \
64 LOG_TAG(dcmd) \
65 LOG_TAG(decoder) \
66 LOG_TAG(defaultmethods) \
67 LOG_TAG(director) \
68 LOG_TAG(dump) \
69 LOG_TAG(dynamic) \
70 LOG_TAG(ergo) \
71 LOG_TAG(event) \
72 LOG_TAG(exceptions) \
73 LOG_TAG(exit) \
74 LOG_TAG(fingerprint) \
75 LOG_TAG(free) \
76 LOG_TAG(freelist) \
77 LOG_TAG(gc) \
78 LOG_TAG(handshake) \
79 LOG_TAG(hashtables) \
80 LOG_TAG(heap) \
81 LOG_TAG(humongous) \
82 LOG_TAG(ihop) \
83 LOG_TAG(iklass) \
84 LOG_TAG(init) \
85 LOG_TAG(inlining) \
86 LOG_TAG(install) \
87 LOG_TAG(interpreter) \
88 LOG_TAG(itables) \
89 LOG_TAG(jfr) \
90 LOG_TAG(jit) \
91 LOG_TAG(jni) \
92 LOG_TAG(jvmti) \
93 LOG_TAG(liveness) \
94 LOG_TAG(load) /* Trace all classes loaded */ \
95 LOG_TAG(loader) \
96 LOG_TAG(logging) \
97 LOG_TAG(malloc) \
98 LOG_TAG(mark) \
99 LOG_TAG(marking) \
100 LOG_TAG(membername) \
101 LOG_TAG(memops) \
102 LOG_TAG(methodcomparator) \
103 LOG_TAG(metadata) \
104 LOG_TAG(metaspace) \
105 LOG_TAG(mmu) \
106 LOG_TAG(module) \
107 LOG_TAG(monitorinflation) \
108 LOG_TAG(monitormismatch) \
109 LOG_TAG(nestmates) \
110 LOG_TAG(nmethod) \
111 LOG_TAG(normalize) \
112 LOG_TAG(objecttagging) \
113 LOG_TAG(obsolete) \
114 LOG_TAG(oldobject) \
115 LOG_TAG(oom) \
116 LOG_TAG(oopmap) \
117 LOG_TAG(oops) \
118 LOG_TAG(oopstorage) \
119 LOG_TAG(os) \
120 LOG_TAG(pagesize) \
121 LOG_TAG(patch) \
122 LOG_TAG(path) \
123 LOG_TAG(perf) \
124 LOG_TAG(periodic) \
125 LOG_TAG(phases) \
126 LOG_TAG(plab) \
127 LOG_TAG(preview) /* Trace loading of preview feature types */ \
128 LOG_TAG(promotion) \
129 LOG_TAG(preorder) /* Trace all classes loaded in order referenced (not loaded) */ \
130 LOG_TAG(protectiondomain) /* "Trace protection domain verification" */ \
131 LOG_TAG(ref) \
132 LOG_TAG(redefine) \
133 LOG_TAG(refine) \
134 LOG_TAG(region) \
135 LOG_TAG(reloc) \
136 LOG_TAG(remset) \
137 LOG_TAG(parser) \
138 LOG_TAG(ptrqueue) \
139 LOG_TAG(purge) \
140 LOG_TAG(resolve) \
141 LOG_TAG(safepoint) \
142 LOG_TAG(sampling) \
143 LOG_TAG(scavenge) \
144 LOG_TAG(setting) \
145 LOG_TAG(smr) \
146 LOG_TAG(stacktrace) \
147 LOG_TAG(stackwalk) \
148 LOG_TAG(start) \
149 LOG_TAG(startuptime) \
150 LOG_TAG(state) \
151 LOG_TAG(stats) \
152 LOG_TAG(stringdedup) \
153 LOG_TAG(stringtable) \
154 LOG_TAG(symboltable) \
155 LOG_TAG(stackmap) \
156 LOG_TAG(subclass) \
157 LOG_TAG(survivor) \
158 LOG_TAG(sweep) \
159 LOG_TAG(system) \
160 LOG_TAG(table) \
161 LOG_TAG(task) \
162 DEBUG_ONLY(LOG_TAG(test)) \
163 LOG_TAG(thread) \
164 LOG_TAG(tlab) \
165 LOG_TAG(time) \
166 LOG_TAG(timer) \
167 LOG_TAG(tracking) \
168 LOG_TAG(update) \
169 LOG_TAG(unload) /* Trace unloading of classes */ \
170 LOG_TAG(unshareable) \
171 LOG_TAG(mirror) \
172 LOG_TAG(verification) \
173 LOG_TAG(verify) \
174 LOG_TAG(vmmonitor) \
175 LOG_TAG(vmoperation) \
176 LOG_TAG(vmthread) \
177 LOG_TAG(vtables) \
178 LOG_TAG(vtablestubs) \
179 LOG_TAG(workgang) \
180 LOG_TAG_LIST_EXT
181
182#define PREFIX_LOG_TAG(T) (LogTag::_##T)
183
184// Expand a set of log tags to their prefixed names.
185// For error detection purposes, the macro passes one more tag than what is supported.
186// If too many tags are given, a static assert in the log class will fail.
187#define LOG_TAGS_EXPANDED(T0, T1, T2, T3, T4, T5, ...) PREFIX_LOG_TAG(T0), PREFIX_LOG_TAG(T1), PREFIX_LOG_TAG(T2), \
188 PREFIX_LOG_TAG(T3), PREFIX_LOG_TAG(T4), PREFIX_LOG_TAG(T5)
189// The EXPAND_VARARGS macro is required for MSVC, or it will resolve the LOG_TAGS_EXPANDED macro incorrectly.
190#define EXPAND_VARARGS(x) x
191#define LOG_TAGS(...) EXPAND_VARARGS(LOG_TAGS_EXPANDED(__VA_ARGS__, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG))
192
193// Log tags are used to classify log messages.
194// Each log message can be assigned between 1 to LogTag::MaxTags number of tags.
195// Specifying multiple tags for a log message means that only outputs configured
196// for those exact tags, or a subset of the tags with a wildcard, will see the logging.
197// Multiple tags should be comma separated, e.g. log_error(tag1, tag2)("msg").
198class LogTag : public AllStatic {
199 public:
200 // The maximum number of tags that a single log message can have.
201 // E.g. there might be hundreds of different tags available,
202 // but a specific log message can only be tagged with up to MaxTags of those.
203 static const size_t MaxTags = 5;
204
205 enum type {
206 __NO_TAG,
207#define LOG_TAG(name) _##name,
208 LOG_TAG_LIST
209#undef LOG_TAG
210 Count
211 };
212
213 static const char* name(LogTag::type tag) {
214 return _name[tag];
215 }
216
217 static LogTag::type from_string(const char *str);
218 static LogTag::type fuzzy_match(const char *tag);
219 static void list_tags(outputStream* out);
220
221 private:
222 static const char* _name[];
223};
224
225typedef LogTag::type LogTagType;
226
227#endif // SHARE_LOGGING_LOGTAG_HPP
228