src/hotspot/share/runtime/os.hpp

rev 51015 : 8207342: error occurred during error reporting (printing register info)
Summary: os::print_location misses a check if the pointer is readable.
Reviewed-by:

*** 410,419 ****
--- 410,422 ----
    static void    set_polling_page(address page) { _polling_page = page; }
    static bool    is_poll_address(address addr)  { return addr >= _polling_page && addr < (_polling_page + os::vm_page_size()); }
    static void    make_polling_page_unreadable();
    static void    make_polling_page_readable();
  
+   // Check if pointer points to readable memory (by 4-byte read access)
+   static bool    is_readable_pointer(const void* p);
+ 
    // Routines used to serialize the thread state without using membars
    static void    serialize_thread_states();
  
    // Since we write to the serialize page from every thread, we
    // want stores to be on unique cache lines whenever possible