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/symbolTable.hpp"
27 #include "classfile/systemDictionary.hpp"
28 #include "classfile/vmSymbols.hpp"
29 #include "code/codeCache.hpp"
30 #include "code/dependencyContext.hpp"
31 #include "compiler/compileBroker.hpp"
32 #include "compiler/compileLog.hpp"
33 #include "compiler/compilerOracle.hpp"
34 #include "compiler/directivesParser.hpp"
35 #include "gc/shared/referencePendingListLocker.hpp"
36 #include "interpreter/linkResolver.hpp"
37 #include "memory/allocation.inline.hpp"
38 #include "memory/resourceArea.hpp"
39 #include "oops/methodData.hpp"
40 #include "oops/method.hpp"
41 #include "oops/oop.inline.hpp"
42 #include "prims/nativeLookup.hpp"
43 #include "prims/whitebox.hpp"
44 #include "runtime/arguments.hpp"
45 #include "runtime/atomic.inline.hpp"
46 #include "runtime/compilationPolicy.hpp"
47 #include "runtime/init.hpp"
48 #include "runtime/interfaceSupport.hpp"
49 #include "runtime/javaCalls.hpp"
50 #include "runtime/os.hpp"
51 #include "runtime/sharedRuntime.hpp"
52 #include "runtime/sweeper.hpp"
53 #include "runtime/timerTrace.hpp"
54 #include "trace/tracing.hpp"
55 #include "utilities/dtrace.hpp"
873 #ifndef PRODUCT
874 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) {
875 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) {
876 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI.
877 return;
878 }
879 }
880 #endif
881
882 // If this method is already in the compile queue, then
883 // we do not block the current thread.
884 if (compilation_is_in_queue(method)) {
885 // We may want to decay our counter a bit here to prevent
886 // multiple denied requests for compilation. This is an
887 // open compilation policy issue. Note: The other possibility,
888 // in the case that this is a blocking compile request, is to have
889 // all subsequent blocking requesters wait for completion of
890 // ongoing compiles. Note that in this case we'll need a protocol
891 // for freeing the associated compile tasks. [Or we could have
892 // a single static monitor on which all these waiters sleep.]
893 return;
894 }
895
896 // If the requesting thread is holding the pending list lock
897 // then we just return. We can't risk blocking while holding
898 // the pending list lock or a 3-way deadlock may occur
899 // between the reference handler thread, a GC (instigated
900 // by a compiler thread), and compiled method registration.
901 if (ReferencePendingListLocker::is_locked_by_self()) {
902 return;
903 }
904
905 if (TieredCompilation) {
906 // Tiered policy requires MethodCounters to exist before adding a method to
907 // the queue. Create if we don't have them yet.
908 method->get_method_counters(thread);
909 }
910
911 // Outputs from the following MutexLocker block:
912 CompileTask* task = NULL;
913 CompileQueue* queue = compile_queue(comp_level);
914
915 // Acquire our lock.
916 {
917 MutexLocker locker(MethodCompileQueue_lock, thread);
918
919 // Make sure the method has not slipped into the queues since
920 // last we checked; note that those checks were "fast bail-outs".
921 // Here we need to be more careful, see 14012000 below.
|
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/symbolTable.hpp"
27 #include "classfile/systemDictionary.hpp"
28 #include "classfile/vmSymbols.hpp"
29 #include "code/codeCache.hpp"
30 #include "code/dependencyContext.hpp"
31 #include "compiler/compileBroker.hpp"
32 #include "compiler/compileLog.hpp"
33 #include "compiler/compilerOracle.hpp"
34 #include "compiler/directivesParser.hpp"
35 #include "interpreter/linkResolver.hpp"
36 #include "memory/allocation.inline.hpp"
37 #include "memory/resourceArea.hpp"
38 #include "oops/methodData.hpp"
39 #include "oops/method.hpp"
40 #include "oops/oop.inline.hpp"
41 #include "prims/nativeLookup.hpp"
42 #include "prims/whitebox.hpp"
43 #include "runtime/arguments.hpp"
44 #include "runtime/atomic.inline.hpp"
45 #include "runtime/compilationPolicy.hpp"
46 #include "runtime/init.hpp"
47 #include "runtime/interfaceSupport.hpp"
48 #include "runtime/javaCalls.hpp"
49 #include "runtime/os.hpp"
50 #include "runtime/sharedRuntime.hpp"
51 #include "runtime/sweeper.hpp"
52 #include "runtime/timerTrace.hpp"
53 #include "trace/tracing.hpp"
54 #include "utilities/dtrace.hpp"
872 #ifndef PRODUCT
873 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) {
874 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) {
875 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI.
876 return;
877 }
878 }
879 #endif
880
881 // If this method is already in the compile queue, then
882 // we do not block the current thread.
883 if (compilation_is_in_queue(method)) {
884 // We may want to decay our counter a bit here to prevent
885 // multiple denied requests for compilation. This is an
886 // open compilation policy issue. Note: The other possibility,
887 // in the case that this is a blocking compile request, is to have
888 // all subsequent blocking requesters wait for completion of
889 // ongoing compiles. Note that in this case we'll need a protocol
890 // for freeing the associated compile tasks. [Or we could have
891 // a single static monitor on which all these waiters sleep.]
892 return;
893 }
894
895 if (TieredCompilation) {
896 // Tiered policy requires MethodCounters to exist before adding a method to
897 // the queue. Create if we don't have them yet.
898 method->get_method_counters(thread);
899 }
900
901 // Outputs from the following MutexLocker block:
902 CompileTask* task = NULL;
903 CompileQueue* queue = compile_queue(comp_level);
904
905 // Acquire our lock.
906 {
907 MutexLocker locker(MethodCompileQueue_lock, thread);
908
909 // Make sure the method has not slipped into the queues since
910 // last we checked; note that those checks were "fast bail-outs".
911 // Here we need to be more careful, see 14012000 below.
|