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8243287: Removal of Unsafe::defineAnonymousClass

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Reviewed-by: iklam, mchung, alanb, dholmes
This commit is contained in:
Harold Seigel 2021-05-13 12:46:54 +00:00
parent a564f2cbd5
commit e14b026841
122 changed files with 328 additions and 3679 deletions
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35
src/hotspot/share/oops/instanceKlass.hpp
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@ -50,7 +50,6 @@ class RecordComponent;
// The embedded nonstatic oop-map blocks are short pairs (offset, length)
// indicating where oops are located in instances of this klass.
// [EMBEDDED implementor of the interface] only exist for interface
// [EMBEDDED unsafe_anonymous_host klass] only exist for an unsafe anonymous class (JSR 292 enabled)
// forward declaration for class -- see below for definition
@ -248,7 +247,7 @@ class InstanceKlass: public Klass {
_misc_rewritten = 1 << 0, // methods rewritten.
_misc_has_nonstatic_fields = 1 << 1, // for sizing with UseCompressedOops
_misc_should_verify_class = 1 << 2, // allow caching of preverification
_misc_is_unsafe_anonymous = 1 << 3, // has embedded _unsafe_anonymous_host field
_misc_unused = 1 << 3, // not currently used
_misc_is_contended = 1 << 4, // marked with contended annotation
_misc_has_nonstatic_concrete_methods = 1 << 5, // class/superclass/implemented interfaces has non-static, concrete methods
_misc_declares_nonstatic_concrete_methods = 1 << 6, // directly declares non-static, concrete methods
@ -329,13 +328,6 @@ class InstanceKlass: public Klass {
// NULL: no implementor.
// A Klass* that's not itself: one implementor.
// Itself: more than one implementors.
// embedded unsafe_anonymous_host klass follows here
// The embedded host klass only exists in an unsafe anonymous class for
// dynamic language support (JSR 292 enabled). The host class grants
// its access privileges to this class also. The host class is either
// named, or a previously loaded unsafe anonymous class. A non-anonymous class
// or an anonymous class loaded through normal classloading does not
// have this embedded field.
//
friend class SystemDictionary;
@ -687,20 +679,6 @@ public:
// signers
objArrayOop signers() const;
// host class
inline InstanceKlass* unsafe_anonymous_host() const;
inline void set_unsafe_anonymous_host(const InstanceKlass* host);
bool is_unsafe_anonymous() const {
return (_misc_flags & _misc_is_unsafe_anonymous) != 0;
}
void set_is_unsafe_anonymous(bool value) {
if (value) {
_misc_flags |= _misc_is_unsafe_anonymous;
} else {
_misc_flags &= ~_misc_is_unsafe_anonymous;
}
}
bool is_contended() const {
return (_misc_flags & _misc_is_contended) != 0;
}
@ -1045,21 +1023,21 @@ public:
static int size(int vtable_length, int itable_length,
int nonstatic_oop_map_size,
bool is_interface, bool is_unsafe_anonymous) {
bool is_interface) {
return align_metadata_size(header_size() +
vtable_length +
itable_length +
nonstatic_oop_map_size +
(is_interface ? (int)sizeof(Klass*)/wordSize : 0) +
(is_unsafe_anonymous ? (int)sizeof(Klass*)/wordSize : 0));
(is_interface ? (int)sizeof(Klass*)/wordSize : 0));
}
int size() const { return size(vtable_length(),
itable_length(),
nonstatic_oop_map_size(),
is_interface(),
is_unsafe_anonymous());
is_interface());
}
inline intptr_t* start_of_itable() const;
inline intptr_t* end_of_itable() const;
inline int itable_offset_in_words() const;
@ -1069,7 +1047,6 @@ public:
inline Klass** end_of_nonstatic_oop_maps() const;
inline InstanceKlass* volatile* adr_implementor() const;
inline InstanceKlass** adr_unsafe_anonymous_host() const;
// Use this to return the size of an instance in heap words:
int size_helper() const {