Mon, 18 Jun 2012 12:29:21 -0700
7176856: add the JRE name to the error log
Reviewed-by: coleenp, jrose, kvn, twisti
Contributed-by: Krystal Mok <sajia@taobao.com>
1 /*
2 * Copyright (c) 1997, 2011, 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 */
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "code/nmethod.hpp"
29 #include "compiler/compileBroker.hpp"
30 #include "interpreter/interpreter.hpp"
31 #include "interpreter/linkResolver.hpp"
32 #include "memory/universe.inline.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "prims/jniCheck.hpp"
35 #include "runtime/compilationPolicy.hpp"
36 #include "runtime/handles.inline.hpp"
37 #include "runtime/interfaceSupport.hpp"
38 #include "runtime/javaCalls.hpp"
39 #include "runtime/mutexLocker.hpp"
40 #include "runtime/signature.hpp"
41 #include "runtime/stubRoutines.hpp"
42 #ifdef TARGET_OS_FAMILY_linux
43 # include "thread_linux.inline.hpp"
44 #endif
45 #ifdef TARGET_OS_FAMILY_solaris
46 # include "thread_solaris.inline.hpp"
47 #endif
48 #ifdef TARGET_OS_FAMILY_windows
49 # include "thread_windows.inline.hpp"
50 #endif
51 #ifdef TARGET_OS_FAMILY_bsd
52 # include "thread_bsd.inline.hpp"
53 #endif
55 // -----------------------------------------------------
56 // Implementation of JavaCallWrapper
58 JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) {
59 JavaThread* thread = (JavaThread *)THREAD;
60 bool clear_pending_exception = true;
62 guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code");
63 assert(!thread->owns_locks(), "must release all locks when leaving VM");
64 guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler");
65 _result = result;
67 // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub,
68 // since it can potentially block.
69 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
71 // After this, we are official in JavaCode. This needs to be done before we change any of the thread local
72 // info, since we cannot find oops before the new information is set up completely.
73 ThreadStateTransition::transition(thread, _thread_in_vm, _thread_in_Java);
75 // Make sure that we handle asynchronous stops and suspends _before_ we clear all thread state
76 // in JavaCallWrapper::JavaCallWrapper(). This way, we can decide if we need to do any pd actions
77 // to prepare for stop/suspend (flush register windows on sparcs, cache sp, or other state).
78 if (thread->has_special_runtime_exit_condition()) {
79 thread->handle_special_runtime_exit_condition();
80 if (HAS_PENDING_EXCEPTION) {
81 clear_pending_exception = false;
82 }
83 }
86 // Make sure to set the oop's after the thread transition - since we can block there. No one is GC'ing
87 // the JavaCallWrapper before the entry frame is on the stack.
88 _callee_method = callee_method();
89 _receiver = receiver();
91 #ifdef CHECK_UNHANDLED_OOPS
92 THREAD->allow_unhandled_oop(&_callee_method);
93 THREAD->allow_unhandled_oop(&_receiver);
94 #endif // CHECK_UNHANDLED_OOPS
96 _thread = (JavaThread *)thread;
97 _handles = _thread->active_handles(); // save previous handle block & Java frame linkage
99 // For the profiler, the last_Java_frame information in thread must always be in
100 // legal state. We have no last Java frame if last_Java_sp == NULL so
101 // the valid transition is to clear _last_Java_sp and then reset the rest of
102 // the (platform specific) state.
104 _anchor.copy(_thread->frame_anchor());
105 _thread->frame_anchor()->clear();
107 debug_only(_thread->inc_java_call_counter());
108 _thread->set_active_handles(new_handles); // install new handle block and reset Java frame linkage
110 assert (_thread->thread_state() != _thread_in_native, "cannot set native pc to NULL");
112 // clear any pending exception in thread (native calls start with no exception pending)
113 if(clear_pending_exception) {
114 _thread->clear_pending_exception();
115 }
117 if (_anchor.last_Java_sp() == NULL) {
118 _thread->record_base_of_stack_pointer();
119 }
120 }
123 JavaCallWrapper::~JavaCallWrapper() {
124 assert(_thread == JavaThread::current(), "must still be the same thread");
126 // restore previous handle block & Java frame linkage
127 JNIHandleBlock *_old_handles = _thread->active_handles();
128 _thread->set_active_handles(_handles);
130 _thread->frame_anchor()->zap();
132 debug_only(_thread->dec_java_call_counter());
134 if (_anchor.last_Java_sp() == NULL) {
135 _thread->set_base_of_stack_pointer(NULL);
136 }
139 // Old thread-local info. has been restored. We are not back in the VM.
140 ThreadStateTransition::transition_from_java(_thread, _thread_in_vm);
142 // State has been restored now make the anchor frame visible for the profiler.
143 // Do this after the transition because this allows us to put an assert
144 // the Java->vm transition which checks to see that stack is not walkable
145 // on sparc/ia64 which will catch violations of the reseting of last_Java_frame
146 // invariants (i.e. _flags always cleared on return to Java)
148 _thread->frame_anchor()->copy(&_anchor);
150 // Release handles after we are marked as being inside the VM again, since this
151 // operation might block
152 JNIHandleBlock::release_block(_old_handles, _thread);
153 }
156 void JavaCallWrapper::oops_do(OopClosure* f) {
157 f->do_oop((oop*)&_callee_method);
158 f->do_oop((oop*)&_receiver);
159 handles()->oops_do(f);
160 }
163 // Helper methods
164 static BasicType runtime_type_from(JavaValue* result) {
165 switch (result->get_type()) {
166 case T_BOOLEAN: // fall through
167 case T_CHAR : // fall through
168 case T_SHORT : // fall through
169 case T_INT : // fall through
170 #ifndef _LP64
171 case T_OBJECT : // fall through
172 case T_ARRAY : // fall through
173 #endif
174 case T_BYTE : // fall through
175 case T_VOID : return T_INT;
176 case T_LONG : return T_LONG;
177 case T_FLOAT : return T_FLOAT;
178 case T_DOUBLE : return T_DOUBLE;
179 #ifdef _LP64
180 case T_ARRAY : // fall through
181 case T_OBJECT: return T_OBJECT;
182 #endif
183 }
184 ShouldNotReachHere();
185 return T_ILLEGAL;
186 }
188 // ===== object constructor calls =====
190 void JavaCalls::call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS) {
191 assert(method->name() == vmSymbols::object_initializer_name(), "Should only be called for default constructor");
192 assert(method->signature() == vmSymbols::void_method_signature(), "Should only be called for default constructor");
194 instanceKlass* ik = instanceKlass::cast(method->method_holder());
195 if (ik->is_initialized() && ik->has_vanilla_constructor()) {
196 // safe to skip constructor call
197 } else {
198 static JavaValue result(T_VOID);
199 JavaCallArguments args(receiver);
200 call(&result, method, &args, CHECK);
201 }
202 }
204 // ============ Virtual calls ============
206 void JavaCalls::call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
207 CallInfo callinfo;
208 Handle receiver = args->receiver();
209 KlassHandle recvrKlass(THREAD, receiver.is_null() ? (klassOop)NULL : receiver->klass());
210 LinkResolver::resolve_virtual_call(
211 callinfo, receiver, recvrKlass, spec_klass, name, signature,
212 KlassHandle(), false, true, CHECK);
213 methodHandle method = callinfo.selected_method();
214 assert(method.not_null(), "should have thrown exception");
216 // Invoke the method
217 JavaCalls::call(result, method, args, CHECK);
218 }
221 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS) {
222 JavaCallArguments args(receiver); // One oop argument
223 call_virtual(result, spec_klass, name, signature, &args, CHECK);
224 }
227 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) {
228 JavaCallArguments args(receiver); // One oop argument
229 args.push_oop(arg1);
230 call_virtual(result, spec_klass, name, signature, &args, CHECK);
231 }
235 void JavaCalls::call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) {
236 JavaCallArguments args(receiver); // One oop argument
237 args.push_oop(arg1);
238 args.push_oop(arg2);
239 call_virtual(result, spec_klass, name, signature, &args, CHECK);
240 }
243 // ============ Special calls ============
245 void JavaCalls::call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
246 CallInfo callinfo;
247 LinkResolver::resolve_special_call(callinfo, klass, name, signature, KlassHandle(), false, CHECK);
248 methodHandle method = callinfo.selected_method();
249 assert(method.not_null(), "should have thrown exception");
251 // Invoke the method
252 JavaCalls::call(result, method, args, CHECK);
253 }
256 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
257 JavaCallArguments args(receiver); // One oop argument
258 call_special(result, klass, name, signature, &args, CHECK);
259 }
262 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) {
263 JavaCallArguments args(receiver); // One oop argument
264 args.push_oop(arg1);
265 call_special(result, klass, name, signature, &args, CHECK);
266 }
269 void JavaCalls::call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) {
270 JavaCallArguments args(receiver); // One oop argument
271 args.push_oop(arg1);
272 args.push_oop(arg2);
273 call_special(result, klass, name, signature, &args, CHECK);
274 }
277 // ============ Static calls ============
279 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
280 CallInfo callinfo;
281 LinkResolver::resolve_static_call(callinfo, klass, name, signature, KlassHandle(), false, true, CHECK);
282 methodHandle method = callinfo.selected_method();
283 assert(method.not_null(), "should have thrown exception");
285 // Invoke the method
286 JavaCalls::call(result, method, args, CHECK);
287 }
290 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) {
291 JavaCallArguments args; // No argument
292 call_static(result, klass, name, signature, &args, CHECK);
293 }
296 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS) {
297 JavaCallArguments args(arg1); // One oop argument
298 call_static(result, klass, name, signature, &args, CHECK);
299 }
302 void JavaCalls::call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS) {
303 JavaCallArguments args; // One oop argument
304 args.push_oop(arg1);
305 args.push_oop(arg2);
306 call_static(result, klass, name, signature, &args, CHECK);
307 }
310 // -------------------------------------------------
311 // Implementation of JavaCalls (low level)
314 void JavaCalls::call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS) {
315 // Check if we need to wrap a potential OS exception handler around thread
316 // This is used for e.g. Win32 structured exception handlers
317 assert(THREAD->is_Java_thread(), "only JavaThreads can make JavaCalls");
318 // Need to wrap each and everytime, since there might be native code down the
319 // stack that has installed its own exception handlers
320 os::os_exception_wrapper(call_helper, result, &method, args, THREAD);
321 }
323 void JavaCalls::call_helper(JavaValue* result, methodHandle* m, JavaCallArguments* args, TRAPS) {
324 methodHandle method = *m;
325 JavaThread* thread = (JavaThread*)THREAD;
326 assert(thread->is_Java_thread(), "must be called by a java thread");
327 assert(method.not_null(), "must have a method to call");
328 assert(!SafepointSynchronize::is_at_safepoint(), "call to Java code during VM operation");
329 assert(!thread->handle_area()->no_handle_mark_active(), "cannot call out to Java here");
332 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();)
334 // Verify the arguments
336 if (CheckJNICalls) {
337 args->verify(method, result->get_type(), thread);
338 }
339 else debug_only(args->verify(method, result->get_type(), thread));
341 // Ignore call if method is empty
342 if (method->is_empty_method()) {
343 assert(result->get_type() == T_VOID, "an empty method must return a void value");
344 return;
345 }
348 #ifdef ASSERT
349 { klassOop holder = method->method_holder();
350 // A klass might not be initialized since JavaCall's might be used during the executing of
351 // the <clinit>. For example, a Thread.start might start executing on an object that is
352 // not fully initialized! (bad Java programming style)
353 assert(instanceKlass::cast(holder)->is_linked(), "rewritting must have taken place");
354 }
355 #endif
358 assert(!thread->is_Compiler_thread(), "cannot compile from the compiler");
359 if (CompilationPolicy::must_be_compiled(method)) {
360 CompileBroker::compile_method(method, InvocationEntryBci,
361 CompilationPolicy::policy()->initial_compile_level(),
362 methodHandle(), 0, "must_be_compiled", CHECK);
363 }
365 // Since the call stub sets up like the interpreter we call the from_interpreted_entry
366 // so we can go compiled via a i2c. Otherwise initial entry method will always
367 // run interpreted.
368 address entry_point = method->from_interpreted_entry();
369 if (JvmtiExport::can_post_interpreter_events() && thread->is_interp_only_mode()) {
370 entry_point = method->interpreter_entry();
371 }
373 // Figure out if the result value is an oop or not (Note: This is a different value
374 // than result_type. result_type will be T_INT of oops. (it is about size)
375 BasicType result_type = runtime_type_from(result);
376 bool oop_result_flag = (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY);
378 // NOTE: if we move the computation of the result_val_address inside
379 // the call to call_stub, the optimizer produces wrong code.
380 intptr_t* result_val_address = (intptr_t*)(result->get_value_addr());
382 // Find receiver
383 Handle receiver = (!method->is_static()) ? args->receiver() : Handle();
385 // When we reenter Java, we need to reenable the yellow zone which
386 // might already be disabled when we are in VM.
387 if (thread->stack_yellow_zone_disabled()) {
388 thread->reguard_stack();
389 }
391 // Check that there are shadow pages available before changing thread state
392 // to Java
393 if (!os::stack_shadow_pages_available(THREAD, method)) {
394 // Throw stack overflow exception with preinitialized exception.
395 Exceptions::throw_stack_overflow_exception(THREAD, __FILE__, __LINE__, method);
396 return;
397 } else {
398 // Touch pages checked if the OS needs them to be touched to be mapped.
399 os::bang_stack_shadow_pages();
400 }
402 // do call
403 { JavaCallWrapper link(method, receiver, result, CHECK);
404 { HandleMark hm(thread); // HandleMark used by HandleMarkCleaner
406 StubRoutines::call_stub()(
407 (address)&link,
408 // (intptr_t*)&(result->_value), // see NOTE above (compiler problem)
409 result_val_address, // see NOTE above (compiler problem)
410 result_type,
411 method(),
412 entry_point,
413 args->parameters(),
414 args->size_of_parameters(),
415 CHECK
416 );
418 result = link.result(); // circumvent MS C++ 5.0 compiler bug (result is clobbered across call)
419 // Preserve oop return value across possible gc points
420 if (oop_result_flag) {
421 thread->set_vm_result((oop) result->get_jobject());
422 }
423 }
424 } // Exit JavaCallWrapper (can block - potential return oop must be preserved)
426 // Check if a thread stop or suspend should be executed
427 // The following assert was not realistic. Thread.stop can set that bit at any moment.
428 //assert(!thread->has_special_runtime_exit_condition(), "no async. exceptions should be installed");
430 // Restore possible oop return
431 if (oop_result_flag) {
432 result->set_jobject((jobject)thread->vm_result());
433 thread->set_vm_result(NULL);
434 }
435 }
438 //--------------------------------------------------------------------------------------
439 // Implementation of JavaCallArguments
441 intptr_t* JavaCallArguments::parameters() {
442 // First convert all handles to oops
443 for(int i = 0; i < _size; i++) {
444 if (_is_oop[i]) {
445 // Handle conversion
446 _value[i] = (intptr_t)Handle::raw_resolve((oop *)_value[i]);
447 }
448 }
449 // Return argument vector
450 return _value;
451 }
454 class SignatureChekker : public SignatureIterator {
455 private:
456 bool *_is_oop;
457 int _pos;
458 BasicType _return_type;
459 intptr_t* _value;
460 Thread* _thread;
462 public:
463 bool _is_return;
465 SignatureChekker(Symbol* signature, BasicType return_type, bool is_static, bool* is_oop, intptr_t* value, Thread* thread) : SignatureIterator(signature) {
466 _is_oop = is_oop;
467 _is_return = false;
468 _return_type = return_type;
469 _pos = 0;
470 _value = value;
471 _thread = thread;
473 if (!is_static) {
474 check_value(true); // Receiver must be an oop
475 }
476 }
478 void check_value(bool type) {
479 guarantee(_is_oop[_pos++] == type, "signature does not match pushed arguments");
480 }
482 void check_doing_return(bool state) { _is_return = state; }
484 void check_return_type(BasicType t) {
485 guarantee(_is_return && t == _return_type, "return type does not match");
486 }
488 void check_int(BasicType t) {
489 if (_is_return) {
490 check_return_type(t);
491 return;
492 }
493 check_value(false);
494 }
496 void check_double(BasicType t) { check_long(t); }
498 void check_long(BasicType t) {
499 if (_is_return) {
500 check_return_type(t);
501 return;
502 }
504 check_value(false);
505 check_value(false);
506 }
508 void check_obj(BasicType t) {
509 if (_is_return) {
510 check_return_type(t);
511 return;
512 }
514 // verify handle and the oop pointed to by handle
515 int p = _pos;
516 bool bad = false;
517 // If argument is oop
518 if (_is_oop[p]) {
519 intptr_t v = _value[p];
520 if (v != 0 ) {
521 size_t t = (size_t)v;
522 bad = (t < (size_t)os::vm_page_size() ) || !Handle::raw_resolve((oop *)v)->is_oop_or_null(true);
523 if (CheckJNICalls && bad) {
524 ReportJNIFatalError((JavaThread*)_thread, "Bad JNI oop argument");
525 }
526 }
527 // for the regular debug case.
528 assert(!bad, "Bad JNI oop argument");
529 }
531 check_value(true);
532 }
534 void do_bool() { check_int(T_BOOLEAN); }
535 void do_char() { check_int(T_CHAR); }
536 void do_float() { check_int(T_FLOAT); }
537 void do_double() { check_double(T_DOUBLE); }
538 void do_byte() { check_int(T_BYTE); }
539 void do_short() { check_int(T_SHORT); }
540 void do_int() { check_int(T_INT); }
541 void do_long() { check_long(T_LONG); }
542 void do_void() { check_return_type(T_VOID); }
543 void do_object(int begin, int end) { check_obj(T_OBJECT); }
544 void do_array(int begin, int end) { check_obj(T_OBJECT); }
545 };
548 void JavaCallArguments::verify(methodHandle method, BasicType return_type,
549 Thread *thread) {
550 guarantee(method->size_of_parameters() == size_of_parameters(), "wrong no. of arguments pushed");
552 // Treat T_OBJECT and T_ARRAY as the same
553 if (return_type == T_ARRAY) return_type = T_OBJECT;
555 // Check that oop information is correct
556 Symbol* signature = method->signature();
558 SignatureChekker sc(signature, return_type, method->is_static(),_is_oop, _value, thread);
559 sc.iterate_parameters();
560 sc.check_doing_return(true);
561 sc.iterate_returntype();
562 }