src/share/vm/runtime/stubRoutines.hpp

rev 7905 : 8074552:  SafeFetch32 and SafeFetchN do not work in error handling
Summary: handle SafeFetch faults in secondary signal handlers
Contributed-by: Thomas Stuefe

*** 453,458 ****
--- 453,463 ----
  inline intptr_t SafeFetchN(intptr_t* adr, intptr_t errValue) {
    assert(StubRoutines::SafeFetchN_stub(), "stub not yet generated");
    return StubRoutines::SafeFetchN_stub()(adr, errValue);
  }
  
+ 
+ // returns true if SafeFetch32 and SafeFetchN can be used safely (stubroutines are already generated)
+ inline bool CanUseSafeFetch32() { return StubRoutines::SafeFetch32_stub() ? true : false; }
+ inline bool CanUseSafeFetchN()  { return StubRoutines::SafeFetchN_stub() ? true : false; }
+ 
  #endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP