8 * 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 "gc/shared/barrierSet.hpp" 27 #include "gc/shared/barrierSetAssembler.hpp" 28 #include "runtime/thread.hpp" 29 #include "utilities/debug.hpp" 30 #include "utilities/macros.hpp" 31 32 BarrierSet* BarrierSet::_barrier_set = NULL; 33 34 void BarrierSet::set_barrier_set(BarrierSet* barrier_set) { 35 assert(_barrier_set == NULL, "Already initialized"); 36 _barrier_set = barrier_set; 37 38 // Notify barrier set of the current (main) thread. Normally the 39 // Thread constructor deals with this, but the main thread is 40 // created before we get here. Verify it isn't yet on the thread 41 // list, else we'd also need to call BarrierSet::on_thread_attach. 42 // This is the only thread that can exist at this point; the Thread 43 // constructor objects to other threads being created before the 44 // barrier set is available. 45 assert(Thread::current()->is_Java_thread(), 46 "Expected main thread to be a JavaThread"); 47 assert(!JavaThread::current()->on_thread_list(), 48 "Main thread already on thread list."); 49 _barrier_set->on_thread_create(Thread::current()); 50 } 51 52 // Called from init.cpp 53 void gc_barrier_stubs_init() { 54 BarrierSet* bs = BarrierSet::barrier_set(); 55 #ifndef ZERO 56 BarrierSetAssembler* bs_assembler = bs->barrier_set_assembler(); 57 bs_assembler->barrier_stubs_init(); 58 #endif 59 } | 8 * 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 "gc/shared/barrierSet.hpp" 27 #include "gc/shared/barrierSetAssembler.hpp" 28 #include "memory/resourceArea.hpp" 29 #include "oops/objArrayKlass.inline.hpp" 30 #include "runtime/thread.hpp" 31 #include "utilities/debug.hpp" 32 #include "utilities/macros.hpp" 33 34 BarrierSet* BarrierSet::_barrier_set = NULL; 35 36 void BarrierSet::set_barrier_set(BarrierSet* barrier_set) { 37 assert(_barrier_set == NULL, "Already initialized"); 38 _barrier_set = barrier_set; 39 40 // Notify barrier set of the current (main) thread. Normally the 41 // Thread constructor deals with this, but the main thread is 42 // created before we get here. Verify it isn't yet on the thread 43 // list, else we'd also need to call BarrierSet::on_thread_attach. 44 // This is the only thread that can exist at this point; the Thread 45 // constructor objects to other threads being created before the 46 // barrier set is available. 47 assert(Thread::current()->is_Java_thread(), 48 "Expected main thread to be a JavaThread"); 49 assert(!JavaThread::current()->on_thread_list(), 50 "Main thread already on thread list."); 51 _barrier_set->on_thread_create(Thread::current()); 52 } 53 54 void BarrierSet::throw_array_null_pointer_store_exception(arrayOop src, arrayOop dst, TRAPS) { 55 Klass* bound = ObjArrayKlass::cast(dst->klass())->element_klass(); 56 stringStream ss; 57 ss.print("arraycopy: can not copy null values into %s[]", 58 bound->external_name()); 59 THROW_MSG(vmSymbols::java_lang_NullPointerException(), ss.as_string()); 60 } 61 62 void BarrierSet::throw_array_store_exception(arrayOop src, arrayOop dst, TRAPS) { 63 ResourceMark rm(THREAD); 64 Klass* bound = ObjArrayKlass::cast(dst->klass())->element_klass(); 65 Klass* stype = ObjArrayKlass::cast(src->klass())->element_klass(); 66 stringStream ss; 67 if (!bound->is_subtype_of(stype)) { 68 ss.print("arraycopy: type mismatch: can not copy %s[] into %s[]", 69 stype->external_name(), bound->external_name()); 70 } else { 71 // oop_arraycopy should return the index in the source array that 72 // contains the problematic oop. 73 ss.print("arraycopy: element type mismatch: can not cast one of the elements" 74 " of %s[] to the type of the destination array, %s", 75 stype->external_name(), bound->external_name()); 76 } 77 THROW_MSG(vmSymbols::java_lang_ArrayStoreException(), ss.as_string()); 78 } 79 80 // Called from init.cpp 81 void gc_barrier_stubs_init() { 82 BarrierSet* bs = BarrierSet::barrier_set(); 83 #ifndef ZERO 84 BarrierSetAssembler* bs_assembler = bs->barrier_set_assembler(); 85 bs_assembler->barrier_stubs_init(); 86 #endif 87 } |