Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/oops/constantPool.cpp
src/share/vm/oops/constantPool.cpp
- changeset 7333
- b12a2a9b05ca
- parent 6680
- 78bbf4d43a14
- child 7535
- 7ae4e26cb1e0
- child 9327
- f96fcd9e1e1b
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replaced
| 7332:7024b693c8f9 | 7333:b12a2a9b05ca |
|---|---|
| 1815 #undef DBG | 1815 #undef DBG |
| 1816 | 1816 |
| 1817 | 1817 |
| 1818 void ConstantPool::set_on_stack(const bool value) { | 1818 void ConstantPool::set_on_stack(const bool value) { |
| 1819 if (value) { | 1819 if (value) { |
| 1820 _flags |= _on_stack; | 1820 int old_flags = *const_cast<volatile int *>(&_flags); |
| 1821 while ((old_flags & _on_stack) == 0) { | |
| 1822 int new_flags = old_flags | _on_stack; | |
| 1823 int result = Atomic::cmpxchg(new_flags, &_flags, old_flags); | |
| 1824 | |
| 1825 if (result == old_flags) { | |
| 1826 // Succeeded. | |
| 1827 MetadataOnStackMark::record(this, Thread::current()); | |
| 1828 return; | |
| 1829 } | |
| 1830 old_flags = result; | |
| 1831 } | |
| 1821 } else { | 1832 } else { |
| 1833 // Clearing is done single-threadedly. | |
| 1822 _flags &= ~_on_stack; | 1834 _flags &= ~_on_stack; |
| 1823 } | 1835 } |
| 1824 if (value) MetadataOnStackMark::record(this); | |
| 1825 } | 1836 } |
| 1826 | 1837 |
| 1827 // JSR 292 support for patching constant pool oops after the class is linked and | 1838 // JSR 292 support for patching constant pool oops after the class is linked and |
| 1828 // the oop array for resolved references are created. | 1839 // the oop array for resolved references are created. |
| 1829 // We can't do this during classfile parsing, which is how the other indexes are | 1840 // We can't do this during classfile parsing, which is how the other indexes are |
