124 LOG_TAG(stats) \
125 LOG_TAG(stringdedup) \
126 LOG_TAG(stringtable) \
127 LOG_TAG(stackmap) \
128 LOG_TAG(subclass) \
129 LOG_TAG(survivor) \
130 LOG_TAG(sweep) \
131 LOG_TAG(task) \
132 DEBUG_ONLY(LOG_TAG(test)) \
133 LOG_TAG(thread) \
134 LOG_TAG(tlab) \
135 LOG_TAG(time) \
136 LOG_TAG(timer) \
137 LOG_TAG(update) \
138 LOG_TAG(unload) /* Trace unloading of classes */ \
139 LOG_TAG(verification) \
140 LOG_TAG(verify) \
141 LOG_TAG(vmoperation) \
142 LOG_TAG(vtables) \
143 LOG_TAG(workgang) \
144 LOG_TAG_LIST_EXT
145
146 #define PREFIX_LOG_TAG(T) (LogTag::_##T)
147
148 // Expand a set of log tags to their prefixed names.
149 // For error detection purposes, the macro passes one more tag than what is supported.
150 // If too many tags are given, a static assert in the log class will fail.
151 #define LOG_TAGS_EXPANDED(T0, T1, T2, T3, T4, T5, ...) PREFIX_LOG_TAG(T0), PREFIX_LOG_TAG(T1), PREFIX_LOG_TAG(T2), \
152 PREFIX_LOG_TAG(T3), PREFIX_LOG_TAG(T4), PREFIX_LOG_TAG(T5)
153 // The EXPAND_VARARGS macro is required for MSVC, or it will resolve the LOG_TAGS_EXPANDED macro incorrectly.
154 #define EXPAND_VARARGS(x) x
155 #define LOG_TAGS(...) EXPAND_VARARGS(LOG_TAGS_EXPANDED(__VA_ARGS__, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG))
156
157 // Log tags are used to classify log messages.
158 // Each log message can be assigned between 1 to LogTag::MaxTags number of tags.
159 // Specifying multiple tags for a log message means that only outputs configured
160 // for those exact tags, or a subset of the tags with a wildcard, will see the logging.
161 // Multiple tags should be comma separated, e.g. log_error(tag1, tag2)("msg").
162 class LogTag : public AllStatic {
163 public:
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124 LOG_TAG(stats) \
125 LOG_TAG(stringdedup) \
126 LOG_TAG(stringtable) \
127 LOG_TAG(stackmap) \
128 LOG_TAG(subclass) \
129 LOG_TAG(survivor) \
130 LOG_TAG(sweep) \
131 LOG_TAG(task) \
132 DEBUG_ONLY(LOG_TAG(test)) \
133 LOG_TAG(thread) \
134 LOG_TAG(tlab) \
135 LOG_TAG(time) \
136 LOG_TAG(timer) \
137 LOG_TAG(update) \
138 LOG_TAG(unload) /* Trace unloading of classes */ \
139 LOG_TAG(verification) \
140 LOG_TAG(verify) \
141 LOG_TAG(vmoperation) \
142 LOG_TAG(vtables) \
143 LOG_TAG(workgang) \
144 LOG_TAG(valuetypes) \
145 LOG_TAG_LIST_EXT
146
147 #define PREFIX_LOG_TAG(T) (LogTag::_##T)
148
149 // Expand a set of log tags to their prefixed names.
150 // For error detection purposes, the macro passes one more tag than what is supported.
151 // If too many tags are given, a static assert in the log class will fail.
152 #define LOG_TAGS_EXPANDED(T0, T1, T2, T3, T4, T5, ...) PREFIX_LOG_TAG(T0), PREFIX_LOG_TAG(T1), PREFIX_LOG_TAG(T2), \
153 PREFIX_LOG_TAG(T3), PREFIX_LOG_TAG(T4), PREFIX_LOG_TAG(T5)
154 // The EXPAND_VARARGS macro is required for MSVC, or it will resolve the LOG_TAGS_EXPANDED macro incorrectly.
155 #define EXPAND_VARARGS(x) x
156 #define LOG_TAGS(...) EXPAND_VARARGS(LOG_TAGS_EXPANDED(__VA_ARGS__, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG, _NO_TAG))
157
158 // Log tags are used to classify log messages.
159 // Each log message can be assigned between 1 to LogTag::MaxTags number of tags.
160 // Specifying multiple tags for a log message means that only outputs configured
161 // for those exact tags, or a subset of the tags with a wildcard, will see the logging.
162 // Multiple tags should be comma separated, e.g. log_error(tag1, tag2)("msg").
163 class LogTag : public AllStatic {
164 public:
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