Tue, 15 Nov 2011 20:17:33 +0100
7110152: assert(size_in_words <= (julong)max_jint) failed: no overflow
Summary: Reduce what arrayOopDesc::max_array_length() returns to avoid int overflow
Reviewed-by: kvn, dholmes, tonyp
1 /*
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25 #ifndef SHARE_VM_OOPS_METHODDATAKLASS_HPP
26 #define SHARE_VM_OOPS_METHODDATAKLASS_HPP
28 #include "oops/klass.hpp"
30 // a methodDataKlass is the klass of a methodDataOop
32 class methodDataKlass : public Klass {
33 friend class VMStructs;
34 private:
35 juint _alloc_size; // allocation profiling support
36 public:
37 // Testing
38 bool oop_is_methodData() const { return true; }
40 // Allocation
41 DEFINE_ALLOCATE_PERMANENT(methodDataKlass);
42 methodDataOop allocate(methodHandle method, TRAPS);
43 static klassOop create_klass(TRAPS);
45 // Sizing
46 int oop_size(oop obj) const;
47 int klass_oop_size() const { return object_size(); }
49 // Casting from klassOop
50 static methodDataKlass* cast(klassOop k) {
51 assert(k->klass_part()->oop_is_methodData(), "cast to methodDataKlass");
52 return (methodDataKlass*) k->klass_part();
53 }
55 // Sizing
56 static int header_size() {
57 return oopDesc::header_size() + sizeof(methodDataKlass)/wordSize;
58 }
59 int object_size() const {
60 return align_object_size(header_size());
61 }
63 // Garbage collection
64 void oop_follow_contents(oop obj);
65 int oop_adjust_pointers(oop obj);
66 bool oop_is_parsable(oop obj) const;
68 // Parallel Scavenge and Parallel Old
69 PARALLEL_GC_DECLS
71 // Allocation profiling support
72 juint alloc_size() const { return _alloc_size; }
73 void set_alloc_size(juint n) { _alloc_size = n; }
75 // Iterators
76 int oop_oop_iterate(oop obj, OopClosure* blk);
77 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
79 public:
80 // Printing
81 void oop_print_value_on(oop obj, outputStream* st);
82 #ifndef PRODUCT
83 void oop_print_on (oop obj, outputStream* st);
84 #endif //PRODUCT
86 // Verify operations
87 const char* internal_name() const;
88 void oop_verify_on(oop obj, outputStream* st);
89 };
91 #endif // SHARE_VM_OOPS_METHODDATAKLASS_HPP