Mercurial > hg > graal-compiler

comparison src/share/vm/jvmci/jvmciRuntime.cpp @ 21559:be896a1983c0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Thu, 28 May 2015 15:36:48 +0200
parents src/share/vm/graal/graalRuntime.cpp@b1530a6cce8c
children 47bebae7454f
comparison
equal deleted inserted replaced
21558:d563baeca9df 21559:be896a1983c0
1 /*
2 * Copyright (c) 2012, 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 #include "precompiled.hpp"
25 #include "asm/codeBuffer.hpp"
26 #include "compiler/compileBroker.hpp"
27 #include "compiler/disassembler.hpp"
28 #include "jvmci/jvmciRuntime.hpp"
29 #include "jvmci/jvmciCompilerToVM.hpp"
30 #include "jvmci/jvmciCompiler.hpp"
31 #include "jvmci/jvmciJavaAccess.hpp"
32 #include "jvmci/jvmciEnv.hpp"
33 #include "memory/oopFactory.hpp"
34 #include "prims/jvm.h"
35 #include "runtime/biasedLocking.hpp"
36 #include "runtime/interfaceSupport.hpp"
37 #include "runtime/arguments.hpp"
38 #include "runtime/reflection.hpp"
39 #include "utilities/debug.hpp"
40
41 jobject JVMCIRuntime::_HotSpotJVMCIRuntime_instance = NULL;
42 bool JVMCIRuntime::_HotSpotJVMCIRuntime_initialized = false;
43 bool JVMCIRuntime::_shutdown_called = false;
44
45 void JVMCIRuntime::initialize_natives(JNIEnv *env, jclass c2vmClass) {
46 uintptr_t heap_end = (uintptr_t) Universe::heap()->reserved_region().end();
47 uintptr_t allocation_end = heap_end + ((uintptr_t)16) * 1024 * 1024 * 1024;
48 AMD64_ONLY(guarantee(heap_end < allocation_end, "heap end too close to end of address space (might lead to erroneous TLAB allocations)"));
49 NOT_LP64(error("check TLAB allocation code for address space conflicts"));
50
51 ensure_jvmci_class_loader_is_initialized();
52
53 JavaThread* THREAD = JavaThread::current();
54 {
55 ThreadToNativeFromVM trans(THREAD);
56
57 ResourceMark rm;
58 HandleMark hm;
59
60 jvmci_compute_offsets();
61
62 // Ensure _non_oop_bits is initialized
63 Universe::non_oop_word();
64
65 env->RegisterNatives(c2vmClass, CompilerToVM_methods, CompilerToVM_methods_count());
66 }
67 if (HAS_PENDING_EXCEPTION) {
68 abort_on_pending_exception(PENDING_EXCEPTION, "Could not register natives");
69 }
70 }
71
72 BufferBlob* JVMCIRuntime::initialize_buffer_blob() {
73 JavaThread* THREAD = JavaThread::current();
74 BufferBlob* buffer_blob = THREAD->get_buffer_blob();
75 if (buffer_blob == NULL) {
76 buffer_blob = BufferBlob::create("JVMCI thread-local CodeBuffer", JVMCINMethodSizeLimit);
77 if (buffer_blob != NULL) {
78 THREAD->set_buffer_blob(buffer_blob);
79 }
80 }
81 return buffer_blob;
82 }
83
84 BasicType JVMCIRuntime::kindToBasicType(jchar ch) {
85 switch(ch) {
86 case 'z': return T_BOOLEAN;
87 case 'b': return T_BYTE;
88 case 's': return T_SHORT;
89 case 'c': return T_CHAR;
90 case 'i': return T_INT;
91 case 'f': return T_FLOAT;
92 case 'j': return T_LONG;
93 case 'd': return T_DOUBLE;
94 case 'a': return T_OBJECT;
95 case '-': return T_ILLEGAL;
96 default:
97 fatal(err_msg("unexpected Kind: %c", ch));
98 break;
99 }
100 return T_ILLEGAL;
101 }
102
103 // Simple helper to see if the caller of a runtime stub which
104 // entered the VM has been deoptimized
105
106 static bool caller_is_deopted() {
107 JavaThread* thread = JavaThread::current();
108 RegisterMap reg_map(thread, false);
109 frame runtime_frame = thread->last_frame();
110 frame caller_frame = runtime_frame.sender(&reg_map);
111 assert(caller_frame.is_compiled_frame(), "must be compiled");
112 return caller_frame.is_deoptimized_frame();
113 }
114
115 // Stress deoptimization
116 static void deopt_caller() {
117 if ( !caller_is_deopted()) {
118 JavaThread* thread = JavaThread::current();
119 RegisterMap reg_map(thread, false);
120 frame runtime_frame = thread->last_frame();
121 frame caller_frame = runtime_frame.sender(&reg_map);
122 Deoptimization::deoptimize_frame(thread, caller_frame.id(), Deoptimization::Reason_constraint);
123 assert(caller_is_deopted(), "Must be deoptimized");
124 }
125 }
126
127 JRT_BLOCK_ENTRY(void, JVMCIRuntime::new_instance(JavaThread* thread, Klass* klass))
128 JRT_BLOCK;
129 assert(klass->is_klass(), "not a class");
130 instanceKlassHandle h(thread, klass);
131 h->check_valid_for_instantiation(true, CHECK);
132 // make sure klass is initialized
133 h->initialize(CHECK);
134 // allocate instance and return via TLS
135 oop obj = h->allocate_instance(CHECK);
136 thread->set_vm_result(obj);
137 JRT_BLOCK_END;
138
139 if (JVMCIDeferredInitBarriers) {
140 new_store_pre_barrier(thread);
141 }
142 JRT_END
143
144 JRT_BLOCK_ENTRY(void, JVMCIRuntime::new_array(JavaThread* thread, Klass* array_klass, jint length))
145 JRT_BLOCK;
146 // Note: no handle for klass needed since they are not used
147 // anymore after new_objArray() and no GC can happen before.
148 // (This may have to change if this code changes!)
149 assert(array_klass->is_klass(), "not a class");
150 oop obj;
151 if (array_klass->oop_is_typeArray()) {
152 BasicType elt_type = TypeArrayKlass::cast(array_klass)->element_type();
153 obj = oopFactory::new_typeArray(elt_type, length, CHECK);
154 } else {
155 Klass* elem_klass = ObjArrayKlass::cast(array_klass)->element_klass();
156 obj = oopFactory::new_objArray(elem_klass, length, CHECK);
157 }
158 thread->set_vm_result(obj);
159 // This is pretty rare but this runtime patch is stressful to deoptimization
160 // if we deoptimize here so force a deopt to stress the path.
161 if (DeoptimizeALot) {
162 static int deopts = 0;
163 // Alternate between deoptimizing and raising an error (which will also cause a deopt)
164 if (deopts++ % 2 == 0) {
165 ResourceMark rm(THREAD);
166 THROW(vmSymbols::java_lang_OutOfMemoryError());
167 } else {
168 deopt_caller();
169 }
170 }
171 JRT_BLOCK_END;
172
173 if (JVMCIDeferredInitBarriers) {
174 new_store_pre_barrier(thread);
175 }
176 JRT_END
177
178 void JVMCIRuntime::new_store_pre_barrier(JavaThread* thread) {
179 // After any safepoint, just before going back to compiled code,
180 // we inform the GC that we will be doing initializing writes to
181 // this object in the future without emitting card-marks, so
182 // GC may take any compensating steps.
183 // NOTE: Keep this code consistent with GraphKit::store_barrier.
184
185 oop new_obj = thread->vm_result();
186 if (new_obj == NULL) return;
187
188 assert(Universe::heap()->can_elide_tlab_store_barriers(),
189 "compiler must check this first");
190 // GC may decide to give back a safer copy of new_obj.
191 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj);
192 thread->set_vm_result(new_obj);
193 }
194
195 JRT_ENTRY(void, JVMCIRuntime::new_multi_array(JavaThread* thread, Klass* klass, int rank, jint* dims))
196 assert(klass->is_klass(), "not a class");
197 assert(rank >= 1, "rank must be nonzero");
198 oop obj = ArrayKlass::cast(klass)->multi_allocate(rank, dims, CHECK);
199 thread->set_vm_result(obj);
200 JRT_END
201
202 JRT_ENTRY(void, JVMCIRuntime::dynamic_new_array(JavaThread* thread, oopDesc* element_mirror, jint length))
203 oop obj = Reflection::reflect_new_array(element_mirror, length, CHECK);
204 thread->set_vm_result(obj);
205 JRT_END
206
207 JRT_ENTRY(void, JVMCIRuntime::dynamic_new_instance(JavaThread* thread, oopDesc* type_mirror))
208 instanceKlassHandle klass(THREAD, java_lang_Class::as_Klass(type_mirror));
209
210 if (klass == NULL) {
211 ResourceMark rm(THREAD);
212 THROW(vmSymbols::java_lang_InstantiationException());
213 }
214
215 // Create new instance (the receiver)
216 klass->check_valid_for_instantiation(false, CHECK);
217
218 // Make sure klass gets initialized
219 klass->initialize(CHECK);
220
221 oop obj = klass->allocate_instance(CHECK);
222 thread->set_vm_result(obj);
223 JRT_END
224
225 extern void vm_exit(int code);
226
227 // Enter this method from compiled code handler below. This is where we transition
228 // to VM mode. This is done as a helper routine so that the method called directly
229 // from compiled code does not have to transition to VM. This allows the entry
230 // method to see if the nmethod that we have just looked up a handler for has
231 // been deoptimized while we were in the vm. This simplifies the assembly code
232 // cpu directories.
233 //
234 // We are entering here from exception stub (via the entry method below)
235 // If there is a compiled exception handler in this method, we will continue there;
236 // otherwise we will unwind the stack and continue at the caller of top frame method
237 // Note: we enter in Java using a special JRT wrapper. This wrapper allows us to
238 // control the area where we can allow a safepoint. After we exit the safepoint area we can
239 // check to see if the handler we are going to return is now in a nmethod that has
240 // been deoptimized. If that is the case we return the deopt blob
241 // unpack_with_exception entry instead. This makes life for the exception blob easier
242 // because making that same check and diverting is painful from assembly language.
243 JRT_ENTRY_NO_ASYNC(static address, exception_handler_for_pc_helper(JavaThread* thread, oopDesc* ex, address pc, nmethod*& nm))
244 // Reset method handle flag.
245 thread->set_is_method_handle_return(false);
246
247 Handle exception(thread, ex);
248 nm = CodeCache::find_nmethod(pc);
249 assert(nm != NULL, "this is not an nmethod");
250 // Adjust the pc as needed/
251 if (nm->is_deopt_pc(pc)) {
252 RegisterMap map(thread, false);
253 frame exception_frame = thread->last_frame().sender(&map);
254 // if the frame isn't deopted then pc must not correspond to the caller of last_frame
255 assert(exception_frame.is_deoptimized_frame(), "must be deopted");
256 pc = exception_frame.pc();
257 }
258 #ifdef ASSERT
259 assert(exception.not_null(), "NULL exceptions should be handled by throw_exception");
260 assert(exception->is_oop(), "just checking");
261 // Check that exception is a subclass of Throwable, otherwise we have a VerifyError
262 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
263 if (ExitVMOnVerifyError) vm_exit(-1);
264 ShouldNotReachHere();
265 }
266 #endif
267
268 // Check the stack guard pages and reenable them if necessary and there is
269 // enough space on the stack to do so. Use fast exceptions only if the guard
270 // pages are enabled.
271 bool guard_pages_enabled = thread->stack_yellow_zone_enabled();
272 if (!guard_pages_enabled) guard_pages_enabled = thread->reguard_stack();
273
274 if (JvmtiExport::can_post_on_exceptions()) {
275 // To ensure correct notification of exception catches and throws
276 // we have to deoptimize here. If we attempted to notify the
277 // catches and throws during this exception lookup it's possible
278 // we could deoptimize on the way out of the VM and end back in
279 // the interpreter at the throw site. This would result in double
280 // notifications since the interpreter would also notify about
281 // these same catches and throws as it unwound the frame.
282
283 RegisterMap reg_map(thread);
284 frame stub_frame = thread->last_frame();
285 frame caller_frame = stub_frame.sender(&reg_map);
286
287 // We don't really want to deoptimize the nmethod itself since we
288 // can actually continue in the exception handler ourselves but I
289 // don't see an easy way to have the desired effect.
290 Deoptimization::deoptimize_frame(thread, caller_frame.id(), Deoptimization::Reason_constraint);
291 assert(caller_is_deopted(), "Must be deoptimized");
292
293 return SharedRuntime::deopt_blob()->unpack_with_exception_in_tls();
294 }
295
296 // ExceptionCache is used only for exceptions at call sites and not for implicit exceptions
297 if (guard_pages_enabled) {
298 address fast_continuation = nm->handler_for_exception_and_pc(exception, pc);
299 if (fast_continuation != NULL) {
300 // Set flag if return address is a method handle call site.
301 thread->set_is_method_handle_return(nm->is_method_handle_return(pc));
302 return fast_continuation;
303 }
304 }
305
306 // If the stack guard pages are enabled, check whether there is a handler in
307 // the current method. Otherwise (guard pages disabled), force an unwind and
308 // skip the exception cache update (i.e., just leave continuation==NULL).
309 address continuation = NULL;
310 if (guard_pages_enabled) {
311
312 // New exception handling mechanism can support inlined methods
313 // with exception handlers since the mappings are from PC to PC
314
315 // debugging support
316 // tracing
317 if (TraceExceptions) {
318 ttyLocker ttyl;
319 ResourceMark rm;
320 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ") thrown in compiled method <%s> at PC " INTPTR_FORMAT " for thread " INTPTR_FORMAT "",
321 exception->print_value_string(), p2i((address)exception()), nm->method()->print_value_string(), p2i(pc), p2i(thread));
322 }
323 // for AbortVMOnException flag
324 NOT_PRODUCT(Exceptions::debug_check_abort(exception));
325
326 // Clear out the exception oop and pc since looking up an
327 // exception handler can cause class loading, which might throw an
328 // exception and those fields are expected to be clear during
329 // normal bytecode execution.
330 thread->clear_exception_oop_and_pc();
331
332 continuation = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, false, false);
333 // If an exception was thrown during exception dispatch, the exception oop may have changed
334 thread->set_exception_oop(exception());
335 thread->set_exception_pc(pc);
336
337 // the exception cache is used only by non-implicit exceptions
338 if (continuation != NULL && !SharedRuntime::deopt_blob()->contains(continuation)) {
339 nm->add_handler_for_exception_and_pc(exception, pc, continuation);
340 }
341 }
342
343 // Set flag if return address is a method handle call site.
344 thread->set_is_method_handle_return(nm->is_method_handle_return(pc));
345
346 if (TraceExceptions) {
347 ttyLocker ttyl;
348 ResourceMark rm;
349 tty->print_cr("Thread " PTR_FORMAT " continuing at PC " PTR_FORMAT " for exception thrown at PC " PTR_FORMAT,
350 p2i(thread), p2i(continuation), p2i(pc));
351 }
352
353 return continuation;
354 JRT_END
355
356 // Enter this method from compiled code only if there is a Java exception handler
357 // in the method handling the exception.
358 // We are entering here from exception stub. We don't do a normal VM transition here.
359 // We do it in a helper. This is so we can check to see if the nmethod we have just
360 // searched for an exception handler has been deoptimized in the meantime.
361 address JVMCIRuntime::exception_handler_for_pc(JavaThread* thread) {
362 oop exception = thread->exception_oop();
363 address pc = thread->exception_pc();
364 // Still in Java mode
365 DEBUG_ONLY(ResetNoHandleMark rnhm);
366 nmethod* nm = NULL;
367 address continuation = NULL;
368 {
369 // Enter VM mode by calling the helper
370 ResetNoHandleMark rnhm;
371 continuation = exception_handler_for_pc_helper(thread, exception, pc, nm);
372 }
373 // Back in JAVA, use no oops DON'T safepoint
374
375 // Now check to see if the nmethod we were called from is now deoptimized.
376 // If so we must return to the deopt blob and deoptimize the nmethod
377 if (nm != NULL && caller_is_deopted()) {
378 continuation = SharedRuntime::deopt_blob()->unpack_with_exception_in_tls();
379 }
380
381 assert(continuation != NULL, "no handler found");
382 return continuation;
383 }
384
385 JRT_ENTRY(void, JVMCIRuntime::create_null_exception(JavaThread* thread))
386 SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_NullPointerException());
387 thread->set_vm_result(PENDING_EXCEPTION);
388 CLEAR_PENDING_EXCEPTION;
389 JRT_END
390
391 JRT_ENTRY(void, JVMCIRuntime::create_out_of_bounds_exception(JavaThread* thread, jint index))
392 char message[jintAsStringSize];
393 sprintf(message, "%d", index);
394 SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), message);
395 thread->set_vm_result(PENDING_EXCEPTION);
396 CLEAR_PENDING_EXCEPTION;
397 JRT_END
398
399 JRT_ENTRY_NO_ASYNC(void, JVMCIRuntime::monitorenter(JavaThread* thread, oopDesc* obj, BasicLock* lock))
400 if (TraceJVMCI >= 3) {
401 char type[O_BUFLEN];
402 obj->klass()->name()->as_C_string(type, O_BUFLEN);
403 markOop mark = obj->mark();
404 tty->print_cr("%s: entered locking slow case with obj=" INTPTR_FORMAT ", type=%s, mark=" INTPTR_FORMAT ", lock=" INTPTR_FORMAT, thread->name(), p2i(obj), type, p2i(mark), p2i(lock));
405 tty->flush();
406 }
407 #ifdef ASSERT
408 if (PrintBiasedLockingStatistics) {
409 Atomic::inc(BiasedLocking::slow_path_entry_count_addr());
410 }
411 #endif
412 Handle h_obj(thread, obj);
413 assert(h_obj()->is_oop(), "must be NULL or an object");
414 if (UseBiasedLocking) {
415 // Retry fast entry if bias is revoked to avoid unnecessary inflation
416 ObjectSynchronizer::fast_enter(h_obj, lock, true, CHECK);
417 } else {
418 if (JVMCIUseFastLocking) {
419 // When using fast locking, the compiled code has already tried the fast case
420 ObjectSynchronizer::slow_enter(h_obj, lock, THREAD);
421 } else {
422 ObjectSynchronizer::fast_enter(h_obj, lock, false, THREAD);
423 }
424 }
425 if (TraceJVMCI >= 3) {
426 tty->print_cr("%s: exiting locking slow with obj=" INTPTR_FORMAT, thread->name(), p2i(obj));
427 }
428 JRT_END
429
430 JRT_LEAF(void, JVMCIRuntime::monitorexit(JavaThread* thread, oopDesc* obj, BasicLock* lock))
431 assert(thread == JavaThread::current(), "threads must correspond");
432 assert(thread->last_Java_sp(), "last_Java_sp must be set");
433 // monitorexit is non-blocking (leaf routine) => no exceptions can be thrown
434 EXCEPTION_MARK;
435
436 #ifdef DEBUG
437 if (!obj->is_oop()) {
438 ResetNoHandleMark rhm;
439 nmethod* method = thread->last_frame().cb()->as_nmethod_or_null();
440 if (method != NULL) {
441 tty->print_cr("ERROR in monitorexit in method %s wrong obj " INTPTR_FORMAT, method->name(), p2i(obj));
442 }
443 thread->print_stack_on(tty);
444 assert(false, "invalid lock object pointer dected");
445 }
446 #endif
447
448 if (JVMCIUseFastLocking) {
449 // When using fast locking, the compiled code has already tried the fast case
450 ObjectSynchronizer::slow_exit(obj, lock, THREAD);
451 } else {
452 ObjectSynchronizer::fast_exit(obj, lock, THREAD);
453 }
454 if (TraceJVMCI >= 3) {
455 char type[O_BUFLEN];
456 obj->klass()->name()->as_C_string(type, O_BUFLEN);
457 tty->print_cr("%s: exited locking slow case with obj=" INTPTR_FORMAT ", type=%s, mark=" INTPTR_FORMAT ", lock=" INTPTR_FORMAT, thread->name(), p2i(obj), type, p2i(obj->mark()), p2i(lock));
458 tty->flush();
459 }
460 JRT_END
461
462 JRT_LEAF(void, JVMCIRuntime::log_object(JavaThread* thread, oopDesc* obj, jint flags))
463 bool string = mask_bits_are_true(flags, LOG_OBJECT_STRING);
464 bool addr = mask_bits_are_true(flags, LOG_OBJECT_ADDRESS);
465 bool newline = mask_bits_are_true(flags, LOG_OBJECT_NEWLINE);
466 if (!string) {
467 if (!addr && obj->is_oop_or_null(true)) {
468 char buf[O_BUFLEN];
469 tty->print("%s@" INTPTR_FORMAT, obj->klass()->name()->as_C_string(buf, O_BUFLEN), p2i(obj));
470 } else {
471 tty->print(INTPTR_FORMAT, p2i(obj));
472 }
473 } else {
474 ResourceMark rm;
475 assert(obj != NULL && java_lang_String::is_instance(obj), "must be");
476 char *buf = java_lang_String::as_utf8_string(obj);
477 tty->print_raw(buf);
478 }
479 if (newline) {
480 tty->cr();
481 }
482 JRT_END
483
484 JRT_LEAF(void, JVMCIRuntime::write_barrier_pre(JavaThread* thread, oopDesc* obj))
485 thread->satb_mark_queue().enqueue(obj);
486 JRT_END
487
488 JRT_LEAF(void, JVMCIRuntime::write_barrier_post(JavaThread* thread, void* card_addr))
489 thread->dirty_card_queue().enqueue(card_addr);
490 JRT_END
491
492 JRT_LEAF(jboolean, JVMCIRuntime::validate_object(JavaThread* thread, oopDesc* parent, oopDesc* child))
493 bool ret = true;
494 if(!Universe::heap()->is_in_closed_subset(parent)) {
495 tty->print_cr("Parent Object "INTPTR_FORMAT" not in heap", p2i(parent));
496 parent->print();
497 ret=false;
498 }
499 if(!Universe::heap()->is_in_closed_subset(child)) {
500 tty->print_cr("Child Object "INTPTR_FORMAT" not in heap", p2i(child));
501 child->print();
502 ret=false;
503 }
504 return (jint)ret;
505 JRT_END
506
507 JRT_ENTRY(void, JVMCIRuntime::vm_error(JavaThread* thread, jlong where, jlong format, jlong value))
508 ResourceMark rm;
509 const char *error_msg = where == 0L ? "<internal JVMCI error>" : (char*) (address) where;
510 char *detail_msg = NULL;
511 if (format != 0L) {
512 const char* buf = (char*) (address) format;
513 size_t detail_msg_length = strlen(buf) * 2;
514 detail_msg = (char *) NEW_RESOURCE_ARRAY(u_char, detail_msg_length);
515 jio_snprintf(detail_msg, detail_msg_length, buf, value);
516 }
517 report_vm_error(__FILE__, __LINE__, error_msg, detail_msg);
518 JRT_END
519
520 JRT_LEAF(oopDesc*, JVMCIRuntime::load_and_clear_exception(JavaThread* thread))
521 oop exception = thread->exception_oop();
522 assert(exception != NULL, "npe");
523 thread->set_exception_oop(NULL);
524 thread->set_exception_pc(0);
525 return exception;
526 JRT_END
527
528 JRT_LEAF(void, JVMCIRuntime::log_printf(JavaThread* thread, oopDesc* format, jlong v1, jlong v2, jlong v3))
529 ResourceMark rm;
530 assert(format != NULL && java_lang_String::is_instance(format), "must be");
531 char *buf = java_lang_String::as_utf8_string(format);
532 tty->print(buf, v1, v2, v3);
533 JRT_END
534
535 static void decipher(jlong v, bool ignoreZero) {
536 if (v != 0 || !ignoreZero) {
537 void* p = (void *)(address) v;
538 CodeBlob* cb = CodeCache::find_blob(p);
539 if (cb) {
540 if (cb->is_nmethod()) {
541 char buf[O_BUFLEN];
542 tty->print("%s [" INTPTR_FORMAT "+" JLONG_FORMAT "]", cb->as_nmethod_or_null()->method()->name_and_sig_as_C_string(buf, O_BUFLEN), p2i(cb->code_begin()), (jlong)((address)v - cb->code_begin()));
543 return;
544 }
545 cb->print_value_on(tty);
546 return;
547 }
548 if (Universe::heap()->is_in(p)) {
549 oop obj = oop(p);
550 obj->print_value_on(tty);
551 return;
552 }
553 tty->print(INTPTR_FORMAT " [long: " JLONG_FORMAT ", double %lf, char %c]",p2i((void *)v), (jlong)v, (jdouble)v, (char)v);
554 }
555 }
556
557 JRT_LEAF(void, JVMCIRuntime::vm_message(jboolean vmError, jlong format, jlong v1, jlong v2, jlong v3))
558 ResourceMark rm;
559 char *buf = (char*) (address) format;
560 if (vmError) {
561 if (buf != NULL) {
562 fatal(err_msg(buf, v1, v2, v3));
563 } else {
564 fatal("<anonymous error>");
565 }
566 } else if (buf != NULL) {
567 tty->print(buf, v1, v2, v3);
568 } else {
569 assert(v2 == 0, "v2 != 0");
570 assert(v3 == 0, "v3 != 0");
571 decipher(v1, false);
572 }
573 JRT_END
574
575 JRT_LEAF(void, JVMCIRuntime::log_primitive(JavaThread* thread, jchar typeChar, jlong value, jboolean newline))
576 union {
577 jlong l;
578 jdouble d;
579 jfloat f;
580 } uu;
581 uu.l = value;
582 switch (typeChar) {
583 case 'z': tty->print(value == 0 ? "false" : "true"); break;
584 case 'b': tty->print("%d", (jbyte) value); break;
585 case 'c': tty->print("%c", (jchar) value); break;
586 case 's': tty->print("%d", (jshort) value); break;
587 case 'i': tty->print("%d", (jint) value); break;
588 case 'f': tty->print("%f", uu.f); break;
589 case 'j': tty->print(JLONG_FORMAT, value); break;
590 case 'd': tty->print("%lf", uu.d); break;
591 default: assert(false, "unknown typeChar"); break;
592 }
593 if (newline) {
594 tty->cr();
595 }
596 JRT_END
597
598 JRT_ENTRY(jint, JVMCIRuntime::identity_hash_code(JavaThread* thread, oopDesc* obj))
599 return (jint) obj->identity_hash();
600 JRT_END
601
602 JRT_ENTRY(jboolean, JVMCIRuntime::thread_is_interrupted(JavaThread* thread, oopDesc* receiver, jboolean clear_interrupted))
603 // Ensure that the C++ Thread and OSThread structures aren't freed before we operate.
604 // This locking requires thread_in_vm which is why this method cannot be JRT_LEAF.
605 Handle receiverHandle(thread, receiver);
606 MutexLockerEx ml(thread->threadObj() == (void*)receiver ? NULL : Threads_lock);
607 JavaThread* receiverThread = java_lang_Thread::thread(receiverHandle());
608 if (receiverThread == NULL) {
609 // The other thread may exit during this process, which is ok so return false.
610 return JNI_FALSE;
611 } else {
612 return (jint) Thread::is_interrupted(receiverThread, clear_interrupted != 0);
613 }
614 JRT_END
615
616 JRT_ENTRY(jint, JVMCIRuntime::test_deoptimize_call_int(JavaThread* thread, int value))
617 deopt_caller();
618 return value;
619 JRT_END
620
621 // private static void Factory.init()
622 JVM_ENTRY(void, JVM_InitJVMCIClassLoader(JNIEnv *env, jclass c, jobject loader_handle))
623 SystemDictionary::init_jvmci_loader(JNIHandles::resolve(loader_handle));
624 SystemDictionary::WKID scan = SystemDictionary::FIRST_JVMCI_WKID;
625 SystemDictionary::initialize_wk_klasses_through(SystemDictionary::LAST_JVMCI_WKID, scan, CHECK);
626 JVM_END
627
628 // private static JVMCIRuntime JVMCI.initializeRuntime()
629 JVM_ENTRY(jobject, JVM_GetJVMCIRuntime(JNIEnv *env, jclass c))
630 JVMCIRuntime::initialize_HotSpotJVMCIRuntime();
631 return JVMCIRuntime::get_HotSpotJVMCIRuntime_jobject();
632 JVM_END
633
634 // private static String[] Services.getServiceImpls(Class service)
635 JVM_ENTRY(jobject, JVM_GetJVMCIServiceImpls(JNIEnv *env, jclass c, jclass serviceClass))
636 HandleMark hm;
637 ResourceMark rm;
638 KlassHandle serviceKlass(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(serviceClass)));
639 return JNIHandles::make_local(THREAD, JVMCIRuntime::get_service_impls(serviceKlass, THREAD)());
640 JVM_END
641
642 // private static TruffleRuntime Truffle.createRuntime()
643 JVM_ENTRY(jobject, JVM_CreateTruffleRuntime(JNIEnv *env, jclass c))
644 JVMCIRuntime::ensure_jvmci_class_loader_is_initialized();
645 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/graal/truffle/hotspot/HotSpotTruffleRuntime", CHECK_NULL);
646 KlassHandle klass = JVMCIRuntime::resolve_or_fail(name, CHECK_NULL);
647
648 TempNewSymbol makeInstance = SymbolTable::new_symbol("makeInstance", CHECK_NULL);
649 TempNewSymbol sig = SymbolTable::new_symbol("()Lcom/oracle/truffle/api/TruffleRuntime;", CHECK_NULL);
650 JavaValue result(T_OBJECT);
651 JavaCalls::call_static(&result, klass, makeInstance, sig, CHECK_NULL);
652 return JNIHandles::make_local(THREAD, (oop) result.get_jobject());
653 JVM_END
654
655 // private static NativeFunctionInterfaceRuntime.createInterface()
656 JVM_ENTRY(jobject, JVM_CreateNativeFunctionInterface(JNIEnv *env, jclass c))
657 JVMCIRuntime::ensure_jvmci_class_loader_is_initialized();
658 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/graal/truffle/hotspot/HotSpotTruffleRuntime", CHECK_NULL);
659 KlassHandle klass = JVMCIRuntime::resolve_or_fail(name, CHECK_NULL);
660
661 TempNewSymbol makeInstance = SymbolTable::new_symbol("createNativeFunctionInterface", CHECK_NULL);
662 TempNewSymbol sig = SymbolTable::new_symbol("()Lcom/oracle/nfi/api/NativeFunctionInterface;", CHECK_NULL);
663 JavaValue result(T_OBJECT);
664 JavaCalls::call_static(&result, klass, makeInstance, sig, CHECK_NULL);
665 return JNIHandles::make_local(THREAD, (oop) result.get_jobject());
666 JVM_END
667
668 void JVMCIRuntime::check_generated_sources_sha1(TRAPS) {
669 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/jvmci/hotspot/sourcegen/GeneratedSourcesSha1", CHECK_ABORT);
670 KlassHandle klass = load_required_class(name);
671 fieldDescriptor fd;
672 if (!InstanceKlass::cast(klass())->find_field(vmSymbols::value_name(), vmSymbols::string_signature(), true, &fd)) {
673 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), "GeneratedSourcesSha1.value");
674 }
675
676 Symbol* value = java_lang_String::as_symbol(klass->java_mirror()->obj_field(fd.offset()), CHECK);
677 if (!value->equals(_generated_sources_sha1)) {
678 char buf[200];
679 jio_snprintf(buf, sizeof(buf), "Generated sources SHA1 check failed (%s != %s) - need to rebuild the VM", value->as_C_string(), _generated_sources_sha1);
680 THROW_MSG(vmSymbols::java_lang_InternalError(), buf);
681 }
682 }
683
684 Handle JVMCIRuntime::callInitializer(const char* className, const char* methodName, const char* returnType) {
685 guarantee(!_HotSpotJVMCIRuntime_initialized, "cannot reinitialize HotSpotJVMCIRuntime");
686 Thread* THREAD = Thread::current();
687 check_generated_sources_sha1(CHECK_ABORT_(Handle()));
688
689 TempNewSymbol name = SymbolTable::new_symbol(className, CHECK_ABORT_(Handle()));
690 KlassHandle klass = load_required_class(name);
691 TempNewSymbol runtime = SymbolTable::new_symbol(methodName, CHECK_ABORT_(Handle()));
692 TempNewSymbol sig = SymbolTable::new_symbol(returnType, CHECK_ABORT_(Handle()));
693 JavaValue result(T_OBJECT);
694 JavaCalls::call_static(&result, klass, runtime, sig, CHECK_ABORT_(Handle()));
695 return Handle((oop)result.get_jobject());
696 }
697
698 void JVMCIRuntime::initialize_HotSpotJVMCIRuntime() {
699 if (JNIHandles::resolve(_HotSpotJVMCIRuntime_instance) == NULL) {
700 #ifdef ASSERT
701 // This should only be called in the context of the JVMCI class being initialized
702 Thread* THREAD = Thread::current();
703 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/jvmci/runtime/JVMCI", CHECK_ABORT);
704 instanceKlassHandle klass = InstanceKlass::cast(load_required_class(name));
705 assert(klass->is_being_initialized() && klass->is_reentrant_initialization(THREAD),
706 "HotSpotJVMCIRuntime initialization should only be triggered through JVMCI initialization");
707 #endif
708
709 Handle result = callInitializer("com/oracle/jvmci/hotspot/HotSpotJVMCIRuntime", "runtime",
710 "()Lcom/oracle/jvmci/hotspot/HotSpotJVMCIRuntime;");
711 _HotSpotJVMCIRuntime_initialized = true;
712 _HotSpotJVMCIRuntime_instance = JNIHandles::make_global(result());
713 }
714 }
715
716 void JVMCIRuntime::initialize_JVMCI() {
717 if (JNIHandles::resolve(_HotSpotJVMCIRuntime_instance) == NULL) {
718 callInitializer("com/oracle/jvmci/runtime/JVMCI", "getRuntime", "()Lcom/oracle/jvmci/runtime/JVMCIRuntime;");
719 }
720 assert(_HotSpotJVMCIRuntime_initialized == true, "what?");
721 }
722
723 // private static void CompilerToVMImpl.init()
724 JVM_ENTRY(void, JVM_InitializeJVMCINatives(JNIEnv *env, jclass c2vmClass))
725 JVMCIRuntime::initialize_natives(env, c2vmClass);
726 JVM_END
727
728 // private static OptionsParsed[] HotSpotOptions.parseVMOptions(Class)
729 JVM_ENTRY(jobject, JVM_ParseJVMCIOptions(JNIEnv *env, jclass c, jobject optionsParsedClass_obj))
730 HandleMark hm;
731 KlassHandle hotSpotOptionsClass(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(c)));
732 JVMCIRuntime::parse_arguments(hotSpotOptionsClass, CHECK_NULL);
733 KlassHandle optionsParsedClass(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(optionsParsedClass_obj)));
734 return JNIHandles::make_local(THREAD, JVMCIRuntime::get_service_impls(optionsParsedClass, THREAD)());
735 JVM_END
736
737
738 void JVMCIRuntime::ensure_jvmci_class_loader_is_initialized() {
739 // This initialization code is guarded by a static pointer to the Factory class.
740 // Once it is non-null, the JVMCI class loader and well known JVMCI classes are
741 // guaranteed to have been initialized. By going through the static
742 // initializer of Factory, we can rely on class initialization semantics to
743 // synchronize threads racing to do the initialization.
744 static Klass* _FactoryKlass = NULL;
745 if (_FactoryKlass == NULL) {
746 Thread* THREAD = Thread::current();
747 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/jvmci/hotspot/loader/Factory", CHECK_ABORT);
748 KlassHandle klass = SystemDictionary::resolve_or_fail(name, true, THREAD);
749 if (HAS_PENDING_EXCEPTION) {
750 static volatile int seen_error = 0;
751 if (!seen_error && Atomic::cmpxchg(1, &seen_error, 0) == 0) {
752 // Only report the failure on the first thread that hits it
753 abort_on_pending_exception(PENDING_EXCEPTION, "JVMCI classes are not available");
754 } else {
755 CLEAR_PENDING_EXCEPTION;
756 // Give first thread time to report the error.
757 os::sleep(THREAD, 100, false);
758 vm_abort(false);
759 }
760 }
761
762 // We cannot use jvmciJavaAccess for this because we are currently in the
763 // process of initializing that mechanism.
764 TempNewSymbol field_name = SymbolTable::new_symbol("useJVMCIClassLoader", CHECK_ABORT);
765 fieldDescriptor field_desc;
766 if (klass->find_field(field_name, vmSymbols::bool_signature(), &field_desc) == NULL) {
767 ResourceMark rm;
768 fatal(err_msg("Invalid layout of %s at %s", field_name->as_C_string(), klass->external_name()));
769 }
770
771 InstanceKlass* ik = InstanceKlass::cast(klass());
772 address addr = ik->static_field_addr(field_desc.offset() - InstanceMirrorKlass::offset_of_static_fields());
773 *((jboolean *) addr) = (jboolean) UseJVMCIClassLoader;
774 klass->initialize(CHECK_ABORT);
775 _FactoryKlass = klass();
776 }
777 }
778
779 jint JVMCIRuntime::check_arguments(TRAPS) {
780 KlassHandle nullHandle;
781 parse_arguments(nullHandle, THREAD);
782 if (HAS_PENDING_EXCEPTION) {
783 // Errors in parsing JVMCI arguments cause exceptions.
784 // We now load and initialize HotSpotOptions which in turn
785 // causes argument parsing to be redone with better error messages.
786 CLEAR_PENDING_EXCEPTION;
787 TempNewSymbol name = SymbolTable::new_symbol("Lcom/oracle/jvmci/hotspot/HotSpotOptions;", CHECK_ABORT_(JNI_ERR));
788 instanceKlassHandle hotSpotOptionsClass = resolve_or_fail(name, CHECK_ABORT_(JNI_ERR));
789
790 parse_arguments(hotSpotOptionsClass, THREAD);
791 assert(HAS_PENDING_EXCEPTION, "must be");
792
793 ResourceMark rm;
794 Handle exception = PENDING_EXCEPTION;
795 CLEAR_PENDING_EXCEPTION;
796 oop message = java_lang_Throwable::message(exception);
797 if (message != NULL) {
798 tty->print_cr("Error parsing JVMCI options: %s", java_lang_String::as_utf8_string(message));
799 } else {
800 call_printStackTrace(exception, THREAD);
801 }
802 return JNI_ERR;
803 }
804 return JNI_OK;
805 }
806
807 void JVMCIRuntime::parse_arguments(KlassHandle hotSpotOptionsClass, TRAPS) {
808 ResourceMark rm(THREAD);
809
810 // Process option overrides from jvmci.options first
811 parse_jvmci_options_file(hotSpotOptionsClass, CHECK);
812
813 // Now process options on the command line
814 int numOptions = Arguments::num_jvmci_args();
815 for (int i = 0; i < numOptions; i++) {
816 char* arg = Arguments::jvmci_args_array()[i];
817 parse_argument(hotSpotOptionsClass, arg, CHECK);
818 }
819 }
820
821 void JVMCIRuntime::check_required_value(const char* name, size_t name_len, const char* value, TRAPS) {
822 if (value == NULL) {
823 char buf[200];
824 jio_snprintf(buf, sizeof(buf), "Must use '-G:%.*s=<value>' format for %.*s option", name_len, name, name_len, name);
825 THROW_MSG(vmSymbols::java_lang_InternalError(), buf);
826 }
827 }
828
829 void JVMCIRuntime::parse_argument(KlassHandle hotSpotOptionsClass, char* arg, TRAPS) {
830 ensure_jvmci_class_loader_is_initialized();
831 char first = arg[0];
832 char* name;
833 size_t name_len;
834 bool recognized = true;
835 if (first == '+' || first == '-') {
836 name = arg + 1;
837 name_len = strlen(name);
838 recognized = set_option_bool(hotSpotOptionsClass, name, name_len, first, CHECK);
839 } else {
840 char* sep = strchr(arg, '=');
841 name = arg;
842 char* value = NULL;
843 if (sep != NULL) {
844 name_len = sep - name;
845 value = sep + 1;
846 } else {
847 name_len = strlen(name);
848 }
849 recognized = set_option(hotSpotOptionsClass, name, name_len, value, CHECK);
850 }
851
852 if (!recognized) {
853 bool throw_err = hotSpotOptionsClass.is_null();
854 if (!hotSpotOptionsClass.is_null()) {
855 set_option_helper(hotSpotOptionsClass, name, name_len, Handle(), ' ', Handle(), 0L);
856 if (!HAS_PENDING_EXCEPTION) {
857 throw_err = true;
858 }
859 }
860
861 if (throw_err) {
862 char buf[200];
863 jio_snprintf(buf, sizeof(buf), "Unrecognized JVMCI option %.*s", name_len, name);
864 THROW_MSG(vmSymbols::java_lang_InternalError(), buf);
865 }
866 }
867 }
868
869 void JVMCIRuntime::parse_jvmci_options_file(KlassHandle hotSpotOptionsClass, TRAPS) {
870 const char* home = Arguments::get_java_home();
871 size_t path_len = strlen(home) + strlen("/lib/jvmci.options") + 1;
872 char* path = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, path_len);
873 char sep = os::file_separator()[0];
874 sprintf(path, "%s%clib%cjvmci.options", home, sep, sep);
875
876 struct stat st;
877 if (os::stat(path, &st) == 0) {
878 int file_handle = os::open(path, 0, 0);
879 if (file_handle != -1) {
880 char* buffer = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, st.st_size);
881 int num_read = (int) os::read(file_handle, (char*) buffer, st.st_size);
882 if (num_read == -1) {
883 warning("Error reading file %s due to %s", path, strerror(errno));
884 } else if (num_read != st.st_size) {
885 warning("Only read %d of " SIZE_FORMAT " bytes from %s", num_read, (size_t) st.st_size, path);
886 }
887 os::close(file_handle);
888 if (num_read == st.st_size) {
889 char* line = buffer;
890 int lineNo = 1;
891 while (line - buffer < num_read) {
892 char* nl = strchr(line, '\n');
893 if (nl != NULL) {
894 *nl = '\0';
895 }
896 parse_argument(hotSpotOptionsClass, line, THREAD);
897 if (HAS_PENDING_EXCEPTION) {
898 warning("Error in %s:%d", path, lineNo);
899 return;
900 }
901 if (nl != NULL) {
902 line = nl + 1;
903 lineNo++;
904 } else {
905 // File without newline at the end
906 break;
907 }
908 }
909 }
910 } else {
911 warning("Error opening file %s due to %s", path, strerror(errno));
912 }
913 }
914 }
915
916 jlong JVMCIRuntime::parse_primitive_option_value(char spec, const char* name, size_t name_len, const char* value, TRAPS) {
917 check_required_value(name, name_len, value, CHECK_(0L));
918 union {
919 jint i;
920 jlong l;
921 double d;
922 } uu;
923 uu.l = 0L;
924 char dummy;
925 switch (spec) {
926 case 'd':
927 case 'f': {
928 if (sscanf(value, "%lf%c", &uu.d, &dummy) == 1) {
929 return uu.l;
930 }
931 break;
932 }
933 case 'i': {
934 if (sscanf(value, "%d%c", &uu.i, &dummy) == 1) {
935 return (jlong)uu.i;
936 }
937 break;
938 }
939 default:
940 ShouldNotReachHere();
941 }
942 ResourceMark rm(THREAD);
943 char buf[200];
944 bool missing = strlen(value) == 0;
945 if (missing) {
946 jio_snprintf(buf, sizeof(buf), "Missing %s value for JVMCI option %.*s", (spec == 'i' ? "numeric" : "float/double"), name_len, name);
947 } else {
948 jio_snprintf(buf, sizeof(buf), "Invalid %s value for JVMCI option %.*s: %s", (spec == 'i' ? "numeric" : "float/double"), name_len, name, value);
949 }
950 THROW_MSG_(vmSymbols::java_lang_InternalError(), buf, 0L);
951 }
952
953 void JVMCIRuntime::set_option_helper(KlassHandle hotSpotOptionsClass, char* name, size_t name_len, Handle option, jchar spec, Handle stringValue, jlong primitiveValue) {
954 Thread* THREAD = Thread::current();
955 Handle name_handle;
956 if (name != NULL) {
957 if (strlen(name) > name_len) {
958 // Temporarily replace '=' with NULL to create the Java string for the option name
959 char save = name[name_len];
960 name[name_len] = '\0';
961 name_handle = java_lang_String::create_from_str(name, THREAD);
962 name[name_len] = '=';
963 if (HAS_PENDING_EXCEPTION) {
964 return;
965 }
966 } else {
967 assert(strlen(name) == name_len, "must be");
968 name_handle = java_lang_String::create_from_str(name, CHECK);
969 }
970 }
971
972 TempNewSymbol setOption = SymbolTable::new_symbol("setOption", CHECK);
973 TempNewSymbol sig = SymbolTable::new_symbol("(Ljava/lang/String;Lcom/oracle/jvmci/options/OptionValue;CLjava/lang/String;J)V", CHECK);
974 JavaValue result(T_VOID);
975 JavaCallArguments args;
976 args.push_oop(name_handle());
977 args.push_oop(option());
978 args.push_int(spec);
979 args.push_oop(stringValue());
980 args.push_long(primitiveValue);
981 JavaCalls::call_static(&result, hotSpotOptionsClass, setOption, sig, &args, CHECK);
982 }
983
984 Handle JVMCIRuntime::get_OptionValue(const char* declaringClass, const char* fieldName, const char* fieldSig, TRAPS) {
985 TempNewSymbol name = SymbolTable::new_symbol(declaringClass, CHECK_NH);
986 Klass* klass = resolve_or_fail(name, CHECK_NH);
987
988 // The class has been loaded so the field and signature should already be in the symbol
989 // table. If they're not there, the field doesn't exist.
990 TempNewSymbol fieldname = SymbolTable::probe(fieldName, (int)strlen(fieldName));
991 TempNewSymbol signame = SymbolTable::probe(fieldSig, (int)strlen(fieldSig));
992 if (fieldname == NULL || signame == NULL) {
993 THROW_MSG_(vmSymbols::java_lang_NoSuchFieldError(), (char*) fieldName, Handle());
994 }
995 // Make sure class is initialized before handing id's out to fields
996 klass->initialize(CHECK_NH);
997
998 fieldDescriptor fd;
999 if (!InstanceKlass::cast(klass)->find_field(fieldname, signame, true, &fd)) {
1000 THROW_MSG_(vmSymbols::java_lang_NoSuchFieldError(), (char*) fieldName, Handle());
1001 }
1002
1003 Handle ret = klass->java_mirror()->obj_field(fd.offset());
1004 return ret;
1005 }
1006
1007 Handle JVMCIRuntime::create_Service(const char* name, TRAPS) {
1008 TempNewSymbol kname = SymbolTable::new_symbol(name, CHECK_NH);
1009 Klass* k = resolve_or_fail(kname, CHECK_NH);
1010 instanceKlassHandle klass(THREAD, k);
1011 klass->initialize(CHECK_NH);
1012 klass->check_valid_for_instantiation(true, CHECK_NH);
1013 JavaValue result(T_VOID);
1014 instanceHandle service = klass->allocate_instance_handle(CHECK_NH);
1015 JavaCalls::call_special(&result, service, klass, vmSymbols::object_initializer_name(), vmSymbols::void_method_signature(), THREAD);
1016 return service;
1017 }
1018
1019 void JVMCIRuntime::shutdown() {
1020 if (_HotSpotJVMCIRuntime_instance != NULL) {
1021 _shutdown_called = true;
1022 JavaThread* THREAD = JavaThread::current();
1023 HandleMark hm(THREAD);
1024 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/jvmci/hotspot/HotSpotJVMCIRuntime", CHECK_ABORT);
1025 KlassHandle klass = load_required_class(name);
1026 JavaValue result(T_VOID);
1027 JavaCallArguments args;
1028 args.push_oop(get_HotSpotJVMCIRuntime());
1029 JavaCalls::call_special(&result, klass, vmSymbols::shutdown_method_name(), vmSymbols::void_method_signature(), &args, CHECK_ABORT);
1030
1031 JNIHandles::destroy_global(_HotSpotJVMCIRuntime_instance);
1032 _HotSpotJVMCIRuntime_instance = NULL;
1033 }
1034 }
1035
1036 void JVMCIRuntime::call_printStackTrace(Handle exception, Thread* thread) {
1037 assert(exception->is_a(SystemDictionary::Throwable_klass()), "Throwable instance expected");
1038 JavaValue result(T_VOID);
1039 JavaCalls::call_virtual(&result,
1040 exception,
1041 KlassHandle(thread,
1042 SystemDictionary::Throwable_klass()),
1043 vmSymbols::printStackTrace_name(),
1044 vmSymbols::void_method_signature(),
1045 thread);
1046 }
1047
1048 void JVMCIRuntime::abort_on_pending_exception(Handle exception, const char* message, bool dump_core) {
1049 Thread* THREAD = Thread::current();
1050 CLEAR_PENDING_EXCEPTION;
1051 tty->print_raw_cr(message);
1052 call_printStackTrace(exception, THREAD);
1053
1054 // Give other aborting threads to also print their stack traces.
1055 // This can be very useful when debugging class initialization
1056 // failures.
1057 os::sleep(THREAD, 200, false);
1058
1059 vm_abort(dump_core);
1060 }
1061
1062 Klass* JVMCIRuntime::resolve_or_null(Symbol* name, TRAPS) {
1063 return SystemDictionary::resolve_or_null(name, SystemDictionary::jvmci_loader(), Handle(), CHECK_NULL);
1064 }
1065
1066 Klass* JVMCIRuntime::resolve_or_fail(Symbol* name, TRAPS) {
1067 return SystemDictionary::resolve_or_fail(name, SystemDictionary::jvmci_loader(), Handle(), true, CHECK_NULL);
1068 }
1069
1070 Klass* JVMCIRuntime::load_required_class(Symbol* name) {
1071 Klass* klass = resolve_or_null(name, Thread::current());
1072 if (klass == NULL) {
1073 tty->print_cr("Could not load class %s", name->as_C_string());
1074 vm_abort(false);
1075 }
1076 return klass;
1077 }
1078
1079 Handle JVMCIRuntime::get_service_impls(KlassHandle serviceKlass, TRAPS) {
1080 const char* home = Arguments::get_java_home();
1081 const char* serviceName = serviceKlass->external_name();
1082
1083 size_t path_len = strlen(home) + strlen("/lib/jvmci/services/") + strlen(serviceName) + 1;
1084 char* path = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, path_len);
1085 char sep = os::file_separator()[0];
1086 sprintf(path, "%s%clib%cjvmci%cservices%c%s", home, sep, sep, sep, sep, serviceName);
1087 struct stat st;
1088 if (os::stat(path, &st) == 0) {
1089 int file_handle = os::open(path, 0, 0);
1090 if (file_handle != -1) {
1091 char* buffer = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, st.st_size + 1);
1092 int num_read = (int) os::read(file_handle, (char*) buffer, st.st_size);
1093 if (num_read == -1) {
1094 warning("Error reading file %s due to %s", path, strerror(errno));
1095 } else if (num_read != st.st_size) {
1096 warning("Only read %d of " SIZE_FORMAT " bytes from %s", num_read, (size_t) st.st_size, path);
1097 }
1098 os::close(file_handle);
1099 if (num_read == st.st_size) {
1100 buffer[num_read] = '\0';
1101 GrowableArray<char*>* implNames = new GrowableArray<char*>();
1102 char* line = buffer;
1103 while (line - buffer < num_read) {
1104 // find line end (\r, \n or \r\n)
1105 char* nextline = NULL;
1106 char* cr = strchr(line, '\r');
1107 char* lf = strchr(line, '\n');
1108 if (cr != NULL && lf != NULL) {
1109 char* min = MIN2(cr, lf);
1110 *min = '\0';
1111 if (lf == cr + 1) {
1112 nextline = lf + 1;
1113 } else {
1114 nextline = min + 1;
1115 }
1116 } else if (cr != NULL) {
1117 *cr = '\0';
1118 nextline = cr + 1;
1119 } else if (lf != NULL) {
1120 *lf = '\0';
1121 nextline = lf + 1;
1122 }
1123 // trim left
1124 while (*line == ' ' || *line == '\t') line++;
1125 char* end = line + strlen(line);
1126 // trim right
1127 while (end > line && (*(end -1) == ' ' || *(end -1) == '\t')) end--;
1128 *end = '\0';
1129 // skip comments and empty lines
1130 if (*line != '#' && strlen(line) > 0) {
1131 // Turn all '.'s into '/'s
1132 for (size_t index = 0; line[index] != '\0'; index++) {
1133 if (line[index] == '.') {
1134 line[index] = '/';
1135 }
1136 }
1137 implNames->append(line);
1138 }
1139 if (nextline != NULL) {
1140 line = nextline;
1141 } else {
1142 // File without newline at the end
1143 break;
1144 }
1145 }
1146
1147 objArrayOop servicesOop = oopFactory::new_objArray(serviceKlass(), implNames->length(), CHECK_NH);
1148 objArrayHandle services(THREAD, servicesOop);
1149 for (int i = 0; i < implNames->length(); ++i) {
1150 char* implName = implNames->at(i);
1151 Handle service = create_Service(implName, CHECK_NH);
1152 services->obj_at_put(i, service());
1153 }
1154 return services;
1155 }
1156 } else {
1157 warning("Error opening file %s due to %s", path, strerror(errno));
1158 }
1159 } else {
1160 warning("Error opening file %s due to %s", path, strerror(errno));
1161 }
1162 return Handle();
1163 }
1164
1165 #include "graalRuntime.inline.hpp"