1 /*
2 * Copyright (c) 2012, 2018, 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
158 // used to throw exceptions from compiled JVMCI code
159 static void throw_and_post_jvmti_exception(JavaThread* thread, const char* exception, const char* message);
160 // helper methods to throw exception with complex messages
161 static void throw_klass_external_name_exception(JavaThread* thread, const char* exception, Klass* klass);
162 static void throw_class_cast_exception(JavaThread* thread, const char* exception, Klass* caster_klass, Klass* target_klass);
163
164 // Forces initialization of the JVMCI runtime.
165 static void force_initialization(TRAPS);
166
167 // Test only function
168 static int test_deoptimize_call_int(JavaThread* thread, int value);
169 };
170
171 // Tracing macros.
172
173 #define IF_TRACE_jvmci_1 if (!(JVMCITraceLevel >= 1)) ; else
174 #define IF_TRACE_jvmci_2 if (!(JVMCITraceLevel >= 2)) ; else
175 #define IF_TRACE_jvmci_3 if (!(JVMCITraceLevel >= 3)) ; else
176 #define IF_TRACE_jvmci_4 if (!(JVMCITraceLevel >= 4)) ; else
177 #define IF_TRACE_jvmci_5 if (!(JVMCITraceLevel >= 5)) ; else
178
179 #define TRACE_jvmci_1 if (!(JVMCITraceLevel >= 1 && (tty->print("JVMCITrace-1: "), true))) ; else tty->print_cr
180 #define TRACE_jvmci_2 if (!(JVMCITraceLevel >= 2 && (tty->print(" JVMCITrace-2: "), true))) ; else tty->print_cr
181 #define TRACE_jvmci_3 if (!(JVMCITraceLevel >= 3 && (tty->print(" JVMCITrace-3: "), true))) ; else tty->print_cr
182 #define TRACE_jvmci_4 if (!(JVMCITraceLevel >= 4 && (tty->print(" JVMCITrace-4: "), true))) ; else tty->print_cr
183 #define TRACE_jvmci_5 if (!(JVMCITraceLevel >= 5 && (tty->print(" JVMCITrace-5: "), true))) ; else tty->print_cr
184
185 #endif // SHARE_VM_JVMCI_JVMCI_RUNTIME_HPP