1 /*

     2  * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     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 #ifndef SHARE_VM_JVMCI_JVMCI_RUNTIME_HPP

    25 #define SHARE_VM_JVMCI_JVMCI_RUNTIME_HPP

    26 

    27 #include "interpreter/interpreter.hpp"

    28 #include "memory/allocation.hpp"

    29 #include "runtime/arguments.hpp"

    30 #include "runtime/deoptimization.hpp"

    31 

    32 #define JVMCI_ERROR(...)       \

    33   { Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::jdk_vm_ci_common_JVMCIError(), __VA_ARGS__); return; }

    34 

    35 #define JVMCI_ERROR_(ret, ...) \

    36   { Exceptions::fthrow(THREAD_AND_LOCATION, vmSymbols::jdk_vm_ci_common_JVMCIError(), __VA_ARGS__); return ret; }

    37 

    38 #define JVMCI_ERROR_0(...)    JVMCI_ERROR_(0, __VA_ARGS__)

    39 #define JVMCI_ERROR_NULL(...) JVMCI_ERROR_(NULL, __VA_ARGS__)

    40 #define JVMCI_ERROR_OK(...)   JVMCI_ERROR_(JVMCIEnv::ok, __VA_ARGS__)

    41 #define CHECK_OK              CHECK_(JVMCIEnv::ok)

    42 

    43 class JVMCIRuntime: public AllStatic {

    44  public:

    45   // Constants describing whether JVMCI wants to be able to adjust the compilation

    46   // level selected for a method by the VM compilation policy and if so, based on

    47   // what information about the method being schedule for compilation.

    48   enum CompLevelAdjustment {

    49      none = 0,             // no adjustment

    50      by_holder = 1,        // adjust based on declaring class of method

    51      by_full_signature = 2 // adjust based on declaring class, name and signature of method

    52   };

    53 

    54  private:

    55   static jobject _HotSpotJVMCIRuntime_instance;

    56   static bool _HotSpotJVMCIRuntime_initialized;

    57   static bool _well_known_classes_initialized;

    58 

    59   static int _trivial_prefixes_count;

    60   static char** _trivial_prefixes;

    61 

    62   static CompLevelAdjustment _comp_level_adjustment;

    63 

    64   static bool _shutdown_called;

    65 

    66   static CompLevel adjust_comp_level_inner(const methodHandle& method, bool is_osr, CompLevel level, JavaThread* thread);

    67 

    68  public:

    69   static bool is_HotSpotJVMCIRuntime_initialized() {

    70     return _HotSpotJVMCIRuntime_initialized;

    71   }

    72 

    73   /**

    74    * Gets the singleton HotSpotJVMCIRuntime instance, initializing it if necessary

    75    */

    76   static Handle get_HotSpotJVMCIRuntime(TRAPS) {

    77     initialize_JVMCI(CHECK_(Handle()));

    78     return Handle(THREAD, JNIHandles::resolve_non_null(_HotSpotJVMCIRuntime_instance));

    79   }

    80 

    81   static jobject get_HotSpotJVMCIRuntime_jobject(TRAPS) {

    82     initialize_JVMCI(CHECK_NULL);

    83     assert(_HotSpotJVMCIRuntime_initialized, "must be");

    84     return _HotSpotJVMCIRuntime_instance;

    85   }

    86 

    87   static Handle callStatic(const char* className, const char* methodName, const char* returnType, JavaCallArguments* args, TRAPS);

    88 

    89   /**

    90    * Determines if the VM is sufficiently booted to initialize JVMCI.

    91    */

    92   static bool can_initialize_JVMCI();

    93 

    94   /**

    95    * Trigger initialization of HotSpotJVMCIRuntime through JVMCI.getRuntime()

    96    */

    97   static void initialize_JVMCI(TRAPS);

    98 

    99   /**

   100    * Explicitly initialize HotSpotJVMCIRuntime itself

   101    */

   102   static void initialize_HotSpotJVMCIRuntime(TRAPS);

   103 

   104   static void initialize_well_known_classes(TRAPS);

   105 

   106   static void metadata_do(void f(Metadata*));

   107 

   108   static void shutdown(TRAPS);

   109 

   110   static void bootstrap_finished(TRAPS);

   111 

   112   static bool shutdown_called() {

   113     return _shutdown_called;

   114   }

   115 

   116   static bool treat_as_trivial(Method* method);

   117 

   118   /**

   119    * Lets JVMCI modify the compilation level currently selected for a method by

   120    * the VM compilation policy.

   121    *

   122    * @param method the method being scheduled for compilation

   123    * @param is_osr specifies if the compilation is an OSR compilation

   124    * @param level the compilation level currently selected by the VM compilation policy

   125    * @param thread the current thread

   126    * @return the compilation level to use for the compilation

   127    */

   128   static CompLevel adjust_comp_level(const methodHandle& method, bool is_osr, CompLevel level, JavaThread* thread);

   129 

   130   static BasicType kindToBasicType(Handle kind, TRAPS);

   131 

   132   // The following routines are all called from compiled JVMCI code

   133 

   134   static void new_instance(JavaThread* thread, Klass* klass);

   135   static void new_array(JavaThread* thread, Klass* klass, jint length);

   136   static void new_multi_array(JavaThread* thread, Klass* klass, int rank, jint* dims);

   137   static void dynamic_new_array(JavaThread* thread, oopDesc* element_mirror, jint length);

   138   static void dynamic_new_instance(JavaThread* thread, oopDesc* type_mirror);

   139   static jboolean thread_is_interrupted(JavaThread* thread, oopDesc* obj, jboolean clear_interrupted);

   140   static void vm_message(jboolean vmError, jlong format, jlong v1, jlong v2, jlong v3);

   141   static jint identity_hash_code(JavaThread* thread, oopDesc* obj);

   142   static address exception_handler_for_pc(JavaThread* thread);

   143   static void monitorenter(JavaThread* thread, oopDesc* obj, BasicLock* lock);

   144   static void monitorexit (JavaThread* thread, oopDesc* obj, BasicLock* lock);

   145   static void vm_error(JavaThread* thread, jlong where, jlong format, jlong value);

   146   static oopDesc* load_and_clear_exception(JavaThread* thread);

   147   static void log_printf(JavaThread* thread, oopDesc* format, jlong v1, jlong v2, jlong v3);

   148   static void log_primitive(JavaThread* thread, jchar typeChar, jlong value, jboolean newline);

   149   // Print the passed in object, optionally followed by a newline.  If

   150   // as_string is true and the object is a java.lang.String then it

   151   // printed as a string, otherwise the type of the object is printed

   152   // followed by its address.

   153   static void log_object(JavaThread* thread, oopDesc* object, bool as_string, bool newline);

   154   static void write_barrier_pre(JavaThread* thread, oopDesc* obj);

   155   static void write_barrier_post(JavaThread* thread, void* card);

   156   static jboolean validate_object(JavaThread* thread, oopDesc* parent, oopDesc* child);

   157   static void new_store_pre_barrier(JavaThread* thread);

   158 

   159   // used to throw exceptions from compiled JVMCI code

   160   static void throw_and_post_jvmti_exception(JavaThread* thread, const char* exception, const char* message);

   161   // helper methods to throw exception with complex messages

   162   static void throw_klass_external_name_exception(JavaThread* thread, const char* exception, Klass* klass);

   163   static void throw_class_cast_exception(JavaThread* thread, const char* exception, Klass* caster_klass, Klass* target_klass);

   164 

   165   // Forces initialization of the JVMCI runtime.

   166   static void force_initialization(TRAPS);

   167 

   168   // Test only function

   169   static int test_deoptimize_call_int(JavaThread* thread, int value);

   170 };

   171 

   172 // Tracing macros.

   173 

   174 #define IF_TRACE_jvmci_1 if (!(JVMCITraceLevel >= 1)) ; else

   175 #define IF_TRACE_jvmci_2 if (!(JVMCITraceLevel >= 2)) ; else

   176 #define IF_TRACE_jvmci_3 if (!(JVMCITraceLevel >= 3)) ; else

   177 #define IF_TRACE_jvmci_4 if (!(JVMCITraceLevel >= 4)) ; else

   178 #define IF_TRACE_jvmci_5 if (!(JVMCITraceLevel >= 5)) ; else

   179 

   180 #define TRACE_jvmci_1 if (!(JVMCITraceLevel >= 1 && (tty->print("JVMCITrace-1: "), true))) ; else tty->print_cr

   181 #define TRACE_jvmci_2 if (!(JVMCITraceLevel >= 2 && (tty->print("   JVMCITrace-2: "), true))) ; else tty->print_cr

   182 #define TRACE_jvmci_3 if (!(JVMCITraceLevel >= 3 && (tty->print("      JVMCITrace-3: "), true))) ; else tty->print_cr

   183 #define TRACE_jvmci_4 if (!(JVMCITraceLevel >= 4 && (tty->print("         JVMCITrace-4: "), true))) ; else tty->print_cr

   184 #define TRACE_jvmci_5 if (!(JVMCITraceLevel >= 5 && (tty->print("            JVMCITrace-5: "), true))) ; else tty->print_cr

   185 

   186 #endif // SHARE_VM_JVMCI_JVMCI_RUNTIME_HPP