diff -r 979e349059eb -r 2ce72467c4e8 src/hotspot/share/runtime/synchronizer.cpp --- a/src/hotspot/share/runtime/synchronizer.cpp Fri Jul 27 14:20:07 2018 +0530 +++ b/src/hotspot/share/runtime/synchronizer.cpp Fri Jul 27 16:29:36 2018 -0400 @@ -1906,52 +1906,20 @@ //------------------------------------------------------------------------------ // Debugging code -void ObjectSynchronizer::sanity_checks(const bool verbose, - const uint cache_line_size, - int *error_cnt_ptr, - int *warning_cnt_ptr) { - u_char *addr_begin = (u_char*)&GVars; - u_char *addr_stwRandom = (u_char*)&GVars.stwRandom; - u_char *addr_hcSequence = (u_char*)&GVars.hcSequence; - - if (verbose) { - tty->print_cr("INFO: sizeof(SharedGlobals)=" SIZE_FORMAT, - sizeof(SharedGlobals)); - } - - uint offset_stwRandom = (uint)(addr_stwRandom - addr_begin); - if (verbose) tty->print_cr("INFO: offset(stwRandom)=%u", offset_stwRandom); - - uint offset_hcSequence = (uint)(addr_hcSequence - addr_begin); - if (verbose) { - tty->print_cr("INFO: offset(_hcSequence)=%u", offset_hcSequence); - } +u_char* ObjectSynchronizer::get_gvars_addr() { + return (u_char*)&GVars; +} - if (cache_line_size != 0) { - // We were able to determine the L1 data cache line size so - // do some cache line specific sanity checks - - if (offset_stwRandom < cache_line_size) { - tty->print_cr("WARNING: the SharedGlobals.stwRandom field is closer " - "to the struct beginning than a cache line which permits " - "false sharing."); - (*warning_cnt_ptr)++; - } +u_char* ObjectSynchronizer::get_gvars_hcSequence_addr() { + return (u_char*)&GVars.hcSequence; +} - if ((offset_hcSequence - offset_stwRandom) < cache_line_size) { - tty->print_cr("WARNING: the SharedGlobals.stwRandom and " - "SharedGlobals.hcSequence fields are closer than a cache " - "line which permits false sharing."); - (*warning_cnt_ptr)++; - } +size_t ObjectSynchronizer::get_gvars_size() { + return sizeof(SharedGlobals); +} - if ((sizeof(SharedGlobals) - offset_hcSequence) < cache_line_size) { - tty->print_cr("WARNING: the SharedGlobals.hcSequence field is closer " - "to the struct end than a cache line which permits false " - "sharing."); - (*warning_cnt_ptr)++; - } - } +u_char* ObjectSynchronizer::get_gvars_stwRandom_addr() { + return (u_char*)&GVars.stwRandom; } #ifndef PRODUCT