1 /* 2 * Copyright (c) 2015, 2017, 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_VM_LOGGING_LOGTAG_HPP 25 #define SHARE_VM_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(cds) \ 48 LOG_TAG(census) \ 49 LOG_TAG(class) \ 50 LOG_TAG(classhisto) \ 51 LOG_TAG(cleanup) \ 52 LOG_TAG(codecache) \ 53 LOG_TAG(compaction) \ 54 LOG_TAG(compilation) \ 55 LOG_TAG(constraints) \ 56 LOG_TAG(constantpool) \ 57 LOG_TAG(coops) \ 58 LOG_TAG(cpu) \ 59 LOG_TAG(cset) \ 60 LOG_TAG(data) \ 61 LOG_TAG(datacreation) \ 62 LOG_TAG(defaultmethods) \ 63 LOG_TAG(dump) \ 64 LOG_TAG(ergo) \ 65 LOG_TAG(exceptions) \ 66 LOG_TAG(exit) \ 67 LOG_TAG(fingerprint) \ 68 LOG_TAG(freelist) \ 69 LOG_TAG(gc) \ 70 LOG_TAG(hashtables) \ 71 LOG_TAG(heap) \ 72 LOG_TAG(humongous) \ 73 LOG_TAG(ihop) \ 74 LOG_TAG(iklass) \ 75 LOG_TAG(init) \ 76 LOG_TAG(inlining) \ 77 LOG_TAG(interpreter) \ 78 LOG_TAG(itables) \ 79 LOG_TAG(jit) \ 80 LOG_TAG(jni) \ 81 LOG_TAG(jvmti) \ 82 LOG_TAG(liveness) \ 83 LOG_TAG(load) /* Trace all classes loaded */ \ 84 LOG_TAG(loader) \ 85 LOG_TAG(logging) \ 86 LOG_TAG(mark) \ 87 LOG_TAG(marking) \ 88 LOG_TAG(membername) \ 89 LOG_TAG(memops) \ 90 LOG_TAG(methodcomparator) \ 91 LOG_TAG(metadata) \ 92 LOG_TAG(metaspace) \ 93 LOG_TAG(mmu) \ 94 LOG_TAG(module) \ 95 LOG_TAG(monitorinflation) \ 96 LOG_TAG(monitormismatch) \ 97 LOG_TAG(nmethod) \ 98 LOG_TAG(normalize) \ 99 LOG_TAG(objecttagging) \ 100 LOG_TAG(obsolete) \ 101 LOG_TAG(oopmap) \ 102 LOG_TAG(os) \ 103 LOG_TAG(pagesize) \ 104 LOG_TAG(patch) \ 105 LOG_TAG(path) \ 106 LOG_TAG(perf) \ 107 LOG_TAG(phases) \ 108 LOG_TAG(plab) \ 109 LOG_TAG(promotion) \ 110 LOG_TAG(preorder) /* Trace all classes loaded in order referenced (not loaded) */ \ 111 LOG_TAG(protectiondomain) /* "Trace protection domain verification" */ \ 112 LOG_TAG(ref) \ 113 LOG_TAG(redefine) \ 114 LOG_TAG(refine) \ 115 LOG_TAG(region) \ 116 LOG_TAG(remset) \ 117 LOG_TAG(purge) \ 118 LOG_TAG(resolve) \ 119 LOG_TAG(safepoint) \ 120 LOG_TAG(scavenge) \ 121 LOG_TAG(scrub) \ 122 LOG_TAG(stacktrace) \ 123 LOG_TAG(stackwalk) \ 124 LOG_TAG(start) \ 125 LOG_TAG(startuptime) \ 126 LOG_TAG(state) \ 127 LOG_TAG(stats) \ 128 LOG_TAG(stringdedup) \ 129 LOG_TAG(stringtable) \ 130 LOG_TAG(stackmap) \ 131 LOG_TAG(subclass) \ 132 LOG_TAG(survivor) \ 133 LOG_TAG(sweep) \ 134 LOG_TAG(table) \ 135 LOG_TAG(task) \ 136 DEBUG_ONLY(LOG_TAG(test)) \ 137 LOG_TAG(thread) \ 138 LOG_TAG(tlab) \ 139 LOG_TAG(time) \ 140 LOG_TAG(timer) \ 141 LOG_TAG(update) \ 142 LOG_TAG(unload) /* Trace unloading of classes */ \ 143 LOG_TAG(unshareable) \ 144 LOG_TAG(verification) \ 145 LOG_TAG(verify) \ 146 LOG_TAG(vmoperation) \ 147 LOG_TAG(vmthread) \ 148 LOG_TAG(vtables) \ 149 LOG_TAG(workgang) \ 150 LOG_TAG_LIST_EXT 151 152 #define PREFIX_LOG_TAG(T) (LogTag::_##T) 153 154 // Expand a set of log tags to their prefixed names. 155 // For error detection purposes, the macro passes one more tag than what is supported. 156 // If too many tags are given, a static assert in the log class will fail. 157 #define LOG_TAGS_EXPANDED(T0, T1, T2, T3, T4, T5, ...) PREFIX_LOG_TAG(T0), PREFIX_LOG_TAG(T1), PREFIX_LOG_TAG(T2), \ 158 PREFIX_LOG_TAG(T3), PREFIX_LOG_TAG(T4), PREFIX_LOG_TAG(T5) 159 // The EXPAND_VARARGS macro is required for MSVC, or it will resolve the LOG_TAGS_EXPANDED macro incorrectly. 160 #define EXPAND_VARARGS(x) x 161 #define LOG_TAGS(...) EXPAND_VARARGS(LOG_TAGS_EXPANDED(__VA_ARGS__, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG)) 162 163 // Log tags are used to classify log messages. 164 // Each log message can be assigned between 1 to LogTag::MaxTags number of tags. 165 // Specifying multiple tags for a log message means that only outputs configured 166 // for those exact tags, or a subset of the tags with a wildcard, will see the logging. 167 // Multiple tags should be comma separated, e.g. log_error(tag1, tag2)("msg"). 168 class LogTag : public AllStatic { 169 public: 170 // The maximum number of tags that a single log message can have. 171 // E.g. there might be hundreds of different tags available, 172 // but a specific log message can only be tagged with up to MaxTags of those. 173 static const size_t MaxTags = 5; 174 175 enum type { 176 __NO_TAG, 177 #define LOG_TAG(name) _##name, 178 LOG_TAG_LIST 179 #undef LOG_TAG 180 Count 181 }; 182 183 static const char* name(LogTag::type tag) { 184 return _name[tag]; 185 } 186 187 static LogTag::type from_string(const char *str); 188 189 private: 190 static const char* _name[]; 191 }; 192 193 typedef LogTag::type LogTagType; 194 195 #endif // SHARE_VM_LOGGING_LOGTAG_HPP