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src/share/vm/oops/oop.cpp

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rev 7854 : 8073387: Move VerifyOopClosures out from genOopClosures.hpp


   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/altHashing.hpp"
  27 #include "classfile/javaClasses.inline.hpp"
  28 #include "oops/oop.inline.hpp"

  29 #include "runtime/handles.inline.hpp"
  30 #include "runtime/thread.inline.hpp"
  31 #include "utilities/copy.hpp"
  32 
  33 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
  34 
  35 bool always_do_update_barrier = false;
  36 
  37 BarrierSet* oopDesc::_bs = NULL;
  38 
  39 void oopDesc::print_on(outputStream* st) const {
  40   if (this == NULL) {
  41     st->print_cr("NULL");
  42   } else {
  43     klass()->oop_print_on(oop(this), st);
  44   }
  45 }
  46 
  47 void oopDesc::print_address_on(outputStream* st) const {
  48   if (PrintOopAddress) {


 102   Handle object(this);
 103   return ObjectSynchronizer::identity_hash_value_for(object);
 104 }
 105 
 106 // When String table needs to rehash
 107 unsigned int oopDesc::new_hash(juint seed) {
 108   EXCEPTION_MARK;
 109   ResourceMark rm;
 110   int length;
 111   jchar* chars = java_lang_String::as_unicode_string(this, length, THREAD);
 112   if (chars != NULL) {
 113     // Use alternate hashing algorithm on the string
 114     return AltHashing::murmur3_32(seed, chars, length);
 115   } else {
 116     vm_exit_out_of_memory(length, OOM_MALLOC_ERROR, "unable to create Unicode strings for String table rehash");
 117     return 0;
 118   }
 119 }
 120 
 121 VerifyOopClosure VerifyOopClosure::verify_oop;





 122 
 123 void VerifyOopClosure::do_oop(oop* p)       { VerifyOopClosure::do_oop_work(p); }
 124 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }
 125 
 126 // type test operations that doesn't require inclusion of oop.inline.hpp.
 127 bool oopDesc::is_instance_noinline()          const { return is_instance();            }
 128 bool oopDesc::is_instanceMirror_noinline()    const { return is_instanceMirror();      }
 129 bool oopDesc::is_instanceClassLoader_noline() const { return is_instanceClassLoader(); }
 130 bool oopDesc::is_instanceRef_noline()         const { return is_instanceRef();         }
 131 bool oopDesc::is_array_noinline()             const { return is_array();               }
 132 bool oopDesc::is_objArray_noinline()          const { return is_objArray();            }
 133 bool oopDesc::is_typeArray_noinline()         const { return is_typeArray();           }
 134 
 135 bool oopDesc::has_klass_gap() {
 136   // Only has a klass gap when compressed class pointers are used.
 137   return UseCompressedClassPointers;
 138 }


   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/altHashing.hpp"
  27 #include "classfile/javaClasses.inline.hpp"
  28 #include "oops/oop.inline.hpp"
  29 #include "oops/verifyOop.hpp"
  30 #include "runtime/handles.inline.hpp"
  31 #include "runtime/thread.inline.hpp"
  32 #include "utilities/copy.hpp"
  33 
  34 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
  35 
  36 bool always_do_update_barrier = false;
  37 
  38 BarrierSet* oopDesc::_bs = NULL;
  39 
  40 void oopDesc::print_on(outputStream* st) const {
  41   if (this == NULL) {
  42     st->print_cr("NULL");
  43   } else {
  44     klass()->oop_print_on(oop(this), st);
  45   }
  46 }
  47 
  48 void oopDesc::print_address_on(outputStream* st) const {
  49   if (PrintOopAddress) {


 103   Handle object(this);
 104   return ObjectSynchronizer::identity_hash_value_for(object);
 105 }
 106 
 107 // When String table needs to rehash
 108 unsigned int oopDesc::new_hash(juint seed) {
 109   EXCEPTION_MARK;
 110   ResourceMark rm;
 111   int length;
 112   jchar* chars = java_lang_String::as_unicode_string(this, length, THREAD);
 113   if (chars != NULL) {
 114     // Use alternate hashing algorithm on the string
 115     return AltHashing::murmur3_32(seed, chars, length);
 116   } else {
 117     vm_exit_out_of_memory(length, OOM_MALLOC_ERROR, "unable to create Unicode strings for String table rehash");
 118     return 0;
 119   }
 120 }
 121 
 122 VerifyOopClosure VerifyOopClosure::verify_oop;
 123 
 124 template <class T> void VerifyOopClosure::do_oop_work(T* p) {
 125   oop obj = oopDesc::load_decode_heap_oop(p);
 126   guarantee(obj->is_oop_or_null(), err_msg("invalid oop: " INTPTR_FORMAT, p2i((oopDesc*) obj)));
 127 }
 128 
 129 void VerifyOopClosure::do_oop(oop* p)       { VerifyOopClosure::do_oop_work(p); }
 130 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }
 131 
 132 // type test operations that doesn't require inclusion of oop.inline.hpp.
 133 bool oopDesc::is_instance_noinline()          const { return is_instance();            }
 134 bool oopDesc::is_instanceMirror_noinline()    const { return is_instanceMirror();      }
 135 bool oopDesc::is_instanceClassLoader_noline() const { return is_instanceClassLoader(); }
 136 bool oopDesc::is_instanceRef_noline()         const { return is_instanceRef();         }
 137 bool oopDesc::is_array_noinline()             const { return is_array();               }
 138 bool oopDesc::is_objArray_noinline()          const { return is_objArray();            }
 139 bool oopDesc::is_typeArray_noinline()         const { return is_typeArray();           }
 140 
 141 bool oopDesc::has_klass_gap() {
 142   // Only has a klass gap when compressed class pointers are used.
 143   return UseCompressedClassPointers;
 144 }
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