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8246181: Avoid walking SymbolTable during -Xshare:dump

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All symbols at dump are created as permanent. Store them in a global array to avoid working SymbolTable.

Reviewed-by: iklam, ccheung
This commit is contained in:
Yumin Qi 2020-06-24 11:15:22 -07:00
parent 1550fd889b
commit 0e60e8ad85
5 changed files with 47 additions and 42 deletions
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src/hotspot/share/runtime/mutexLocker.hpp
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@ -130,6 +130,7 @@ extern Mutex* CDSClassFileStream_lock; // FileMapInfo::open_stream_for
#endif
extern Mutex* DumpTimeTable_lock; // SystemDictionaryShared::find_or_allocate_info_for
extern Mutex* CDSLambda_lock; // SystemDictionaryShared::get_shared_lambda_proxy_class
extern Mutex* CDSAddSymbol_lock; // SystemDictionaryShared::add_symbol
#endif // INCLUDE_CDS
#if INCLUDE_JFR
extern Mutex* JfrStacktrace_lock; // used to guard access to the JFR stacktrace table