src/hotspot/share/runtime/sharedRuntime.cpp

rev 51532 : 8209950: SIGBUS in CodeHeapState::print_names()
Reviewed-by:

*** 2134,2152 ****
    static int _max_arity;                      // max. arity seen
    static int _max_size;                       // max. arg size seen
  
    static void add_method_to_histogram(nmethod* nm) {
      // These checks are taken from CodeHeapState::print_names()
!     Method* m = (nm == NULL) ? NULL : nm->method();  // nm->method() may be uninitialized, i.e. != NULL, but invalid
!     if ((nm != NULL) && (m != NULL) && !nm->is_zombie() && !nm->is_not_installed() &&
!         os::is_readable_pointer(m) && os::is_readable_pointer(m->constants())) {
!       ArgumentCount args(m->signature());
!       int arity   = args.size() + (m->is_static() ? 0 : 1);
!       int argsize = m->size_of_parameters();
        arity   = MIN2(arity, MAX_ARITY-1);
        argsize = MIN2(argsize, MAX_ARITY-1);
!       int count = nm->method()->compiled_invocation_count();
        _arity_histogram[arity]  += count;
        _size_histogram[argsize] += count;
        _max_arity = MAX2(_max_arity, arity);
        _max_size  = MAX2(_max_size, argsize);
      }
--- 2134,2152 ----
    static int _max_arity;                      // max. arity seen
    static int _max_size;                       // max. arg size seen
  
    static void add_method_to_histogram(nmethod* nm) {
      // These checks are taken from CodeHeapState::print_names()
!     Method* method = (nm == NULL) ? NULL : nm->method();  // nm->method() may be uninitialized, i.e. != NULL, but invalid
!     if ((nm != NULL) && (method != NULL) && (method->signature() != NULL) && !nm->is_zombie() && !nm->is_not_installed() &&
!         os::is_readable_pointer(method) && os::is_readable_pointer(method->constants()) && os::is_readable_pointer(method->signature())) {
!       ArgumentCount args(method->signature());
!       int arity   = args.size() + (method->is_static() ? 0 : 1);
!       int argsize = method->size_of_parameters();
        arity   = MIN2(arity, MAX_ARITY-1);
        argsize = MIN2(argsize, MAX_ARITY-1);
!       int count = method->compiled_invocation_count();
        _arity_histogram[arity]  += count;
        _size_histogram[argsize] += count;
        _max_arity = MAX2(_max_arity, arity);
        _max_size  = MAX2(_max_size, argsize);
      }