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8072061: Automatically determine optimal sizes for the CDS regions

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See new C++ class MetaspaceClosure.

Reviewed-by: coleenp, jiangli, mseledtsov
This commit is contained in:
Ioi Lam 2017-08-02 18:06:38 -07:00
parent 4b983a51fd
commit f7f193ae71
82 changed files with 2010 additions and 1622 deletions
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11
hotspot/src/share/vm/classfile/systemDictionary.hpp
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@ -353,7 +353,9 @@ public:
Handle class_loader,
TRAPS);
static void classes_do(MetaspaceClosure* it);
// Iterate over all methods in all klasses
static void methods_do(void f(Method*));
// Garbage collection support
@ -382,9 +384,11 @@ public:
public:
// Sharing support.
static void reorder_dictionary();
static void copy_buckets(char** top, char* end);
static void copy_table(char** top, char* end);
static void reorder_dictionary_for_sharing();
static size_t count_bytes_for_buckets();
static size_t count_bytes_for_table();
static void copy_buckets(char* top, char* end);
static void copy_table(char* top, char* end);
static void set_shared_dictionary(HashtableBucket<mtClass>* t, int length,
int number_of_entries);
// Printing
@ -442,6 +446,7 @@ public:
assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
return &_well_known_klasses[id];
}
static void well_known_klasses_do(MetaspaceClosure* it);
// Local definition for direct access to the private array:
#define WK_KLASS(name) _well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)]