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8242263: Diagnose synchronization on primitive wrappers

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Added diagnostic flag DiagnoseSyncOnPrimitiveWrappers

Reviewed-by: dholmes, mdoerr, dcubed, coleenp, egahlin, mgronlun
This commit is contained in:
Patricio Chilano Mateo 2020-08-21 15:04:02 +00:00
parent fac22ce20c
commit e56002c7d3
36 changed files with 528 additions and 88 deletions
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8
src/hotspot/share/runtime/synchronizer.hpp
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@ -62,6 +62,12 @@ class ObjectSynchronizer : AllStatic {
inflate_cause_nof = 7 // Number of causes
} InflateCause;
typedef enum {
NOT_ENABLED = 0,
FATAL_EXIT = 1,
LOG_WARNING = 2
} SyncDiagnosticOption;
// exit must be implemented non-blocking, since the compiler cannot easily handle
// deoptimization at monitor exit. Hence, it does not take a Handle argument.
@ -194,6 +200,8 @@ class ObjectSynchronizer : AllStatic {
static u_char* get_gvars_hc_sequence_addr();
static size_t get_gvars_size();
static u_char* get_gvars_stw_random_addr();
static void handle_sync_on_primitive_wrapper(Handle obj, Thread* current);
};
// ObjectLocker enforces balanced locking and can never throw an