6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation.
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
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* 2 along with this work; if not, write to the Free Software Foundation,
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// A constMethodKlass is the klass of a constMethodOop
class constMethodKlass : public Klass {
friend class VMStructs;
private:
juint _alloc_size; // allocation profiling support
public:
// Testing
bool oop_is_constMethod() const { return true; }
virtual bool oop_is_parsable(oop obj) const;
virtual bool oop_is_conc_safe(oop obj) const;
// Allocation
DEFINE_ALLOCATE_PERMANENT(constMethodKlass);
constMethodOop allocate(int byte_code_size, int compressed_line_number_size,
int localvariable_table_length,
int checked_exceptions_length,
bool is_conc_safe,
TRAPS);
static klassOop create_klass(TRAPS);
// Sizing
int oop_size(oop obj) const;
int klass_oop_size() const { return object_size(); }
// Casting from klassOop
static constMethodKlass* cast(klassOop k) {
assert(k->klass_part()->oop_is_constMethod(), "cast to constMethodKlass");
return (constMethodKlass*) k->klass_part();
}
// Sizing
static int header_size() {
return oopDesc::header_size() + sizeof(constMethodKlass)/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
// Allocation profiling support
juint alloc_size() const { return _alloc_size; }
void set_alloc_size(juint n) { _alloc_size = n; }
// Iterators
int oop_oop_iterate(oop obj, OopClosure* blk);
int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
// Printing
void oop_print_value_on(oop obj, outputStream* st);
void oop_print_on (oop obj, outputStream* st);
// Verify operations
const char* internal_name() const;
void oop_verify_on(oop obj, outputStream* st);
bool oop_partially_loaded(oop obj) const;
void oop_set_partially_loaded(oop obj);
};