src/hotspot/share/logging/logTag.hpp
changeset 47216 71c04702a3d5
parent 47103 a993ec29ec75
child 47881 0ce0ac68ace7
equal deleted inserted replaced
47215:4ebc2e2fb97c 47216:71c04702a3d5
       
     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