7150058: Allocate symbols from null boot loader to an arena for NMT
Summary: Move symbol allocation to an arena so NMT doesn't have to track them at startup.
Reviewed-by: never, kamg, zgu
/*
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#ifndef SHARE_VM_OOPS_CPCACHEKLASS_HPP
#define SHARE_VM_OOPS_CPCACHEKLASS_HPP
#include "oops/arrayKlass.hpp"
#include "oops/cpCacheOop.hpp"
#include "oops/instanceKlass.hpp"
class constantPoolCacheKlass: public Klass {
juint _alloc_size; // allocation profiling support
public:
// Dispatched klass operations
bool oop_is_constantPoolCache() const { return true; }
int oop_size(oop obj) const;
int klass_oop_size() const { return object_size(); }
// Allocation
DEFINE_ALLOCATE_PERMANENT(constantPoolCacheKlass);
constantPoolCacheOop allocate(int length, TRAPS);
static klassOop create_klass(TRAPS);
// Casting from klassOop
static constantPoolCacheKlass* cast(klassOop k) {
assert(k->klass_part()->oop_is_constantPoolCache(), "cast to constantPoolCacheKlass");
return (constantPoolCacheKlass*)k->klass_part();
}
// Sizing
static int header_size() { return oopDesc::header_size() + sizeof(constantPoolCacheKlass)/HeapWordSize; }
int object_size() const { return align_object_size(header_size()); }
// Garbage collection
void oop_follow_contents(oop obj);
int oop_adjust_pointers(oop obj);
// Parallel Scavenge and Parallel Old
PARALLEL_GC_DECLS
// Iterators
int oop_oop_iterate(oop obj, OopClosure* blk);
int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
// Allocation profiling support
juint alloc_size() const { return _alloc_size; }
void set_alloc_size(juint n) { _alloc_size = n; }
// Printing
void oop_print_value_on(oop obj, outputStream* st);
void oop_print_on(oop obj, outputStream* st);
// Verification
const char* internal_name() const;
void oop_verify_on(oop obj, outputStream* st);
};
#endif // SHARE_VM_OOPS_CPCACHEKLASS_HPP