22 */
23
24 #include "precompiled.hpp"
25 #include "memory/oopFactory.hpp"
26 #include "memory/resourceArea.hpp"
27 #include "oops/oop.inline.hpp"
28 #include "runtime/javaCalls.hpp"
29 #include "runtime/handles.hpp"
30 #include "jvmci/jvmciJavaClasses.hpp"
31 #include "jvmci/jvmciCompiler.hpp"
32 #include "jvmci/jvmciEnv.hpp"
33 #include "jvmci/jvmciRuntime.hpp"
34 #include "runtime/compilationPolicy.hpp"
35 #include "runtime/globals_extension.hpp"
36
37 JVMCICompiler* JVMCICompiler::_instance = NULL;
38 elapsedTimer JVMCICompiler::_codeInstallTimer;
39
40 JVMCICompiler::JVMCICompiler() : AbstractCompiler(jvmci) {
41 _bootstrapping = false;
42 _methods_compiled = 0;
43 assert(_instance == NULL, "only one instance allowed");
44 _instance = this;
45 }
46
47 // Initialization
48 void JVMCICompiler::initialize() {
49 if (!UseCompiler || !EnableJVMCI || !UseJVMCICompiler || !should_perform_init()) {
50 return;
51 }
52
53 set_state(initialized);
54
55 // JVMCI is considered as application code so we need to
56 // stop the VM deferring compilation now.
57 CompilationPolicy::completed_vm_startup();
58 }
59
60 void JVMCICompiler::bootstrap() {
61 if (Arguments::mode() == Arguments::_int) {
62 // Nothing to do in -Xint mode
63 return;
64 }
65 #ifndef PRODUCT
66 // We turn off CompileTheWorld so that compilation requests are not
67 // ignored during bootstrap or that JVMCI can be compiled by C1/C2.
68 FlagSetting ctwOff(CompileTheWorld, false);
69 #endif
70
71 JavaThread* THREAD = JavaThread::current();
72 _bootstrapping = true;
73 ResourceMark rm;
74 HandleMark hm;
75 if (PrintBootstrap) {
76 tty->print("Bootstrapping JVMCI");
77 }
78 jlong start = os::javaTimeMillis();
79
80 Array<Method*>* objectMethods = SystemDictionary::Object_klass()->methods();
81 // Initialize compile queue with a selected set of methods.
82 int len = objectMethods->length();
83 for (int i = 0; i < len; i++) {
84 methodHandle mh = objectMethods->at(i);
85 if (!mh->is_native() && !mh->is_static() && !mh->is_initializer()) {
86 ResourceMark rm;
87 int hot_count = 10; // TODO: what's the appropriate value?
88 CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, CompileTask::Reason_Bootstrap, THREAD);
89 }
90 }
91
92 int qsize;
93 bool first_round = true;
94 int z = 0;
95 do {
96 // Loop until there is something in the queue.
97 do {
98 os::sleep(THREAD, 100, true);
99 qsize = CompileBroker::queue_size(CompLevel_full_optimization);
100 } while (first_round && qsize == 0);
101 first_round = false;
102 if (PrintBootstrap) {
103 while (z < (_methods_compiled / 100)) {
104 ++z;
105 tty->print_raw(".");
106 }
107 }
108 } while (qsize != 0);
109
110 if (PrintBootstrap) {
111 tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methods_compiled);
112 }
113 _bootstrapping = false;
114 }
115
116 #define CHECK_ABORT THREAD); \
117 if (HAS_PENDING_EXCEPTION) { \
118 char buf[256]; \
119 jio_snprintf(buf, 256, "Uncaught exception at %s:%d", __FILE__, __LINE__); \
120 JVMCICompiler::abort_on_pending_exception(PENDING_EXCEPTION, buf); \
121 return; \
122 } \
123 (void)(0
124
125 void JVMCICompiler::compile_method(const methodHandle& method, int entry_bci, JVMCIEnv* env) {
126 JVMCI_EXCEPTION_CONTEXT
127
128 bool is_osr = entry_bci != InvocationEntryBci;
129 if (_bootstrapping && is_osr) {
130 // no OSR compilations during bootstrap - the compiler is just too slow at this point,
131 // and we know that there are no endless loops
132 return;
133 }
169
170 env->set_failure("exception throw", false);
171 } else {
172 oop result_object = (oop) result.get_jobject();
173 if (result_object != NULL) {
174 oop failure_message = CompilationRequestResult::failureMessage(result_object);
175 if (failure_message != NULL) {
176 const char* failure_reason = java_lang_String::as_utf8_string(failure_message);
177 env->set_failure(failure_reason, CompilationRequestResult::retry(result_object) != 0);
178 } else {
179 if (env->task()->code() == NULL) {
180 env->set_failure("no nmethod produced", true);
181 } else {
182 env->task()->set_num_inlined_bytecodes(CompilationRequestResult::inlinedBytecodes(result_object));
183 Atomic::inc(&_methods_compiled);
184 }
185 }
186 } else {
187 assert(false, "JVMCICompiler.compileMethod should always return non-null");
188 }
189 }
190 }
191
192 /**
193 * Aborts the VM due to an unexpected exception.
194 */
195 void JVMCICompiler::abort_on_pending_exception(Handle exception, const char* message, bool dump_core) {
196 Thread* THREAD = Thread::current();
197 CLEAR_PENDING_EXCEPTION;
198
199 java_lang_Throwable::java_printStackTrace(exception, THREAD);
200
201 // Give other aborting threads to also print their stack traces.
202 // This can be very useful when debugging class initialization
203 // failures.
204 assert(THREAD->is_Java_thread(), "compiler threads should be Java threads");
205 const bool interruptible = true;
206 os::sleep(THREAD, 200, interruptible);
207
208 vm_abort(dump_core);
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22 */
23
24 #include "precompiled.hpp"
25 #include "memory/oopFactory.hpp"
26 #include "memory/resourceArea.hpp"
27 #include "oops/oop.inline.hpp"
28 #include "runtime/javaCalls.hpp"
29 #include "runtime/handles.hpp"
30 #include "jvmci/jvmciJavaClasses.hpp"
31 #include "jvmci/jvmciCompiler.hpp"
32 #include "jvmci/jvmciEnv.hpp"
33 #include "jvmci/jvmciRuntime.hpp"
34 #include "runtime/compilationPolicy.hpp"
35 #include "runtime/globals_extension.hpp"
36
37 JVMCICompiler* JVMCICompiler::_instance = NULL;
38 elapsedTimer JVMCICompiler::_codeInstallTimer;
39
40 JVMCICompiler::JVMCICompiler() : AbstractCompiler(jvmci) {
41 _bootstrapping = false;
42 _bootstrap_compilation_request_handled = false;
43 _methods_compiled = 0;
44 assert(_instance == NULL, "only one instance allowed");
45 _instance = this;
46 }
47
48 // Initialization
49 void JVMCICompiler::initialize() {
50 if (!UseCompiler || !EnableJVMCI || !UseJVMCICompiler || !should_perform_init()) {
51 return;
52 }
53
54 set_state(initialized);
55
56 // JVMCI is considered as application code so we need to
57 // stop the VM deferring compilation now.
58 CompilationPolicy::completed_vm_startup();
59 }
60
61 void JVMCICompiler::bootstrap(TRAPS) {
62 if (Arguments::mode() == Arguments::_int) {
63 // Nothing to do in -Xint mode
64 return;
65 }
66 #ifndef PRODUCT
67 // We turn off CompileTheWorld so that compilation requests are not
68 // ignored during bootstrap or that JVMCI can be compiled by C1/C2.
69 FlagSetting ctwOff(CompileTheWorld, false);
70 #endif
71
72 _bootstrapping = true;
73 ResourceMark rm;
74 HandleMark hm;
75 if (PrintBootstrap) {
76 tty->print("Bootstrapping JVMCI");
77 }
78 jlong start = os::javaTimeMillis();
79
80 Array<Method*>* objectMethods = SystemDictionary::Object_klass()->methods();
81 // Initialize compile queue with a selected set of methods.
82 int len = objectMethods->length();
83 for (int i = 0; i < len; i++) {
84 methodHandle mh = objectMethods->at(i);
85 if (!mh->is_native() && !mh->is_static() && !mh->is_initializer()) {
86 ResourceMark rm;
87 int hot_count = 10; // TODO: what's the appropriate value?
88 CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, CompileTask::Reason_Bootstrap, THREAD);
89 }
90 }
91
92 int qsize;
93 bool first_round = true;
94 int z = 0;
95 do {
96 // Loop until there is something in the queue.
97 do {
98 os::sleep(THREAD, 100, true);
99 qsize = CompileBroker::queue_size(CompLevel_full_optimization);
100 } while (!_bootstrap_compilation_request_handled && first_round && qsize == 0);
101 first_round = false;
102 if (PrintBootstrap) {
103 while (z < (_methods_compiled / 100)) {
104 ++z;
105 tty->print_raw(".");
106 }
107 }
108 } while (qsize != 0);
109
110 if (PrintBootstrap) {
111 tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methods_compiled);
112 }
113 _bootstrapping = false;
114 JVMCIRuntime::bootstrap_finished(CHECK);
115 }
116
117 #define CHECK_ABORT THREAD); \
118 if (HAS_PENDING_EXCEPTION) { \
119 char buf[256]; \
120 jio_snprintf(buf, 256, "Uncaught exception at %s:%d", __FILE__, __LINE__); \
121 JVMCICompiler::abort_on_pending_exception(PENDING_EXCEPTION, buf); \
122 return; \
123 } \
124 (void)(0
125
126 void JVMCICompiler::compile_method(const methodHandle& method, int entry_bci, JVMCIEnv* env) {
127 JVMCI_EXCEPTION_CONTEXT
128
129 bool is_osr = entry_bci != InvocationEntryBci;
130 if (_bootstrapping && is_osr) {
131 // no OSR compilations during bootstrap - the compiler is just too slow at this point,
132 // and we know that there are no endless loops
133 return;
134 }
170
171 env->set_failure("exception throw", false);
172 } else {
173 oop result_object = (oop) result.get_jobject();
174 if (result_object != NULL) {
175 oop failure_message = CompilationRequestResult::failureMessage(result_object);
176 if (failure_message != NULL) {
177 const char* failure_reason = java_lang_String::as_utf8_string(failure_message);
178 env->set_failure(failure_reason, CompilationRequestResult::retry(result_object) != 0);
179 } else {
180 if (env->task()->code() == NULL) {
181 env->set_failure("no nmethod produced", true);
182 } else {
183 env->task()->set_num_inlined_bytecodes(CompilationRequestResult::inlinedBytecodes(result_object));
184 Atomic::inc(&_methods_compiled);
185 }
186 }
187 } else {
188 assert(false, "JVMCICompiler.compileMethod should always return non-null");
189 }
190 }
191 if (_bootstrapping) {
192 _bootstrap_compilation_request_handled = true;
193 }
194 }
195
196 /**
197 * Aborts the VM due to an unexpected exception.
198 */
199 void JVMCICompiler::abort_on_pending_exception(Handle exception, const char* message, bool dump_core) {
200 Thread* THREAD = Thread::current();
201 CLEAR_PENDING_EXCEPTION;
202
203 java_lang_Throwable::java_printStackTrace(exception, THREAD);
204
205 // Give other aborting threads to also print their stack traces.
206 // This can be very useful when debugging class initialization
207 // failures.
208 assert(THREAD->is_Java_thread(), "compiler threads should be Java threads");
209 const bool interruptible = true;
210 os::sleep(THREAD, 200, interruptible);
211
212 vm_abort(dump_core);
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