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8199735: Mark word updates need to use Access API

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Reviewed-by: shade, eosterlund
This commit is contained in:
Roman Kennke 2018-04-05 10:54:53 +02:00
parent a47dc291ae
commit 389d720746
39 changed files with 205 additions and 149 deletions
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17
src/hotspot/share/oops/oop.hpp
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@ -63,17 +63,21 @@ class oopDesc {
} _metadata;
public:
markOop mark() const { return _mark; }
markOop* mark_addr() const { return (markOop*) &_mark; }
inline markOop mark() const;
inline markOop mark_raw() const;
inline markOop* mark_addr_raw() const;
void set_mark(volatile markOop m) { _mark = m; }
inline void set_mark(volatile markOop m);
inline void set_mark_raw(volatile markOop m);
inline void release_set_mark(markOop m);
inline markOop cas_set_mark(markOop new_mark, markOop old_mark);
inline markOop cas_set_mark_raw(markOop new_mark, markOop old_mark);
// Used only to re-initialize the mark word (e.g., of promoted
// objects during a GC) -- requires a valid klass pointer
inline void init_mark();
inline void init_mark_raw();
inline Klass* klass() const;
inline Klass* klass_or_null() const volatile;
@ -237,6 +241,7 @@ class oopDesc {
inline bool is_locked() const;
inline bool is_unlocked() const;
inline bool has_bias_pattern() const;
inline bool has_bias_pattern_raw() const;
// asserts and guarantees
static bool is_oop(oop obj, bool ignore_mark_word = false);
@ -323,9 +328,9 @@ class oopDesc {
unsigned int new_hash(juint seed);
// marks are forwarded to stack when object is locked
inline bool has_displaced_mark() const;
inline markOop displaced_mark() const;
inline void set_displaced_mark(markOop m);
inline bool has_displaced_mark_raw() const;
inline markOop displaced_mark_raw() const;
inline void set_displaced_mark_raw(markOop m);
static bool has_klass_gap();