44   if (nm->is_unloading()) {
45     // We don't need to take the lock when unlinking nmethods from
46     // the Method, because it is only concurrently unlinked by
47     // the entry barrier, which acquires the per nmethod lock.
48     nm->unlink_from_method();
49 
50     // We can end up calling nmethods that are unloading
51     // since we clear compiled ICs lazily. Returning false
52     // will re-resovle the call and update the compiled IC.
53     return false;
54   }
55 
56   // Heal oops and disarm
57   ZNMethodOopClosure cl;
58   ZNMethod::nmethod_oops_do(nm, &cl);
59   disarm(nm);
60 
61   return true;
62 }
63 
64 int ZBarrierSetNMethod::disarmed_value() const {
65   // We override the default BarrierSetNMethod::disarmed_value() since
66   // this can be called by GC threads, which doesn't keep an up to date
67   // address_bad_mask.
68   const uintptr_t disarmed_addr = ((uintptr_t)&ZAddressBadMask) + ZNMethodDisarmedOffset;
69   return *((int*)disarmed_addr);
70 }
71 
72 ByteSize ZBarrierSetNMethod::thread_disarmed_offset() const {
73   return ZThreadLocalData::nmethod_disarmed_offset();
74 }

44   if (nm->is_unloading()) {
45     // We don't need to take the lock when unlinking nmethods from
46     // the Method, because it is only concurrently unlinked by
47     // the entry barrier, which acquires the per nmethod lock.
48     nm->unlink_from_method();
49 
50     // We can end up calling nmethods that are unloading
51     // since we clear compiled ICs lazily. Returning false
52     // will re-resovle the call and update the compiled IC.
53     return false;
54   }
55 
56   // Heal oops and disarm
57   ZNMethodOopClosure cl;
58   ZNMethod::nmethod_oops_do(nm, &cl);
59   disarm(nm);
60 
61   return true;
62 }
63 
64 int* ZBarrierSetNMethod::disarmed_value_address() const {
65   const uintptr_t mask_addr = reinterpret_cast<uintptr_t>(&ZAddressBadMask);
66   const uintptr_t disarmed_addr = mask_addr + ZNMethodDisarmedOffset;
67   return reinterpret_cast<int*>(disarmed_addr);


68 }
69 
70 ByteSize ZBarrierSetNMethod::thread_disarmed_offset() const {
71   return ZThreadLocalData::nmethod_disarmed_offset();
72 }