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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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10
hotspot/src/share/vm/classfile/vmSymbols.cpp
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@ -26,6 +26,7 @@
#include "classfile/vmSymbols.hpp"
#include "compiler/compilerDirectives.hpp"
#include "memory/oopFactory.hpp"
#include "memory/metaspaceClosure.hpp"
#include "oops/oop.inline.hpp"
#include "prims/jvm.h"
#include "runtime/handles.inline.hpp"
@ -183,6 +184,15 @@ void vmSymbols::symbols_do(SymbolClosure* f) {
}
}
void vmSymbols::metaspace_pointers_do(MetaspaceClosure *it) {
for (int index = (int)FIRST_SID; index < (int)SID_LIMIT; index++) {
it->push(&_symbols[index]);
}
for (int i = 0; i < T_VOID+1; i++) {
it->push(&_type_signatures[i]);
}
}
void vmSymbols::serialize(SerializeClosure* soc) {
soc->do_region((u_char*)&_symbols[FIRST_SID],
(SID_LIMIT - FIRST_SID) * sizeof(_symbols[0]));