src/hotspot/os_cpu/bsd_x86/os_bsd_x86.cpp

rev 52430 : 8213199: GC abstraction for Assembler::needs_explicit_null_check()

@@ -578,11 +578,11 @@
 #if defined(__APPLE__)
       // 32-bit Darwin reports a SIGBUS for nearly all memory access exceptions.
       // 64-bit Darwin may also use a SIGBUS (seen with compressed oops).
       // Catching SIGBUS here prevents the implicit SIGBUS NULL check below from
       // being called, so only do so if the implicit NULL check is not necessary.
-      } else if (sig == SIGBUS && MacroAssembler::needs_explicit_null_check((intptr_t)info->si_addr)) {
+      } else if (sig == SIGBUS && !MacroAssembler::uses_implicit_null_check(info->si_addr)) {
 #else
       } else if (sig == SIGBUS /* && info->si_code == BUS_OBJERR */) {
 #endif
         // BugId 4454115: A read from a MappedByteBuffer can fault
         // here if the underlying file has been truncated.

@@ -653,11 +653,11 @@
           tty->print_cr("unknown opcode 0x%X with SIGFPE.", op);
           fatal("please update this code.");
         }
 #endif // AMD64
       } else if ((sig == SIGSEGV || sig == SIGBUS) &&
-               !MacroAssembler::needs_explicit_null_check((intptr_t)info->si_addr)) {
+                 MacroAssembler::uses_implicit_null_check(info->si_addr)) {
           // Determination of interpreter/vtable stub/compiled code null exception
           stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL);
       }
     } else if (thread->thread_state() == _thread_in_vm &&
                sig == SIGBUS && /* info->si_code == BUS_OBJERR && */