| /* |
| * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "classfile/javaClasses.hpp" |
| #include "classfile/systemDictionary.hpp" |
| #include "classfile/vmSymbols.hpp" |
| #include "code/codeCache.hpp" |
| #include "code/debugInfoRec.hpp" |
| #include "code/nmethod.hpp" |
| #include "code/pcDesc.hpp" |
| #include "code/scopeDesc.hpp" |
| #include "interpreter/interpreter.hpp" |
| #include "interpreter/oopMapCache.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "oops/instanceKlass.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "runtime/handles.inline.hpp" |
| #include "runtime/objectMonitor.hpp" |
| #include "runtime/objectMonitor.inline.hpp" |
| #include "runtime/signature.hpp" |
| #include "runtime/stubRoutines.hpp" |
| #include "runtime/synchronizer.hpp" |
| #include "runtime/vframe.hpp" |
| #include "runtime/vframeArray.hpp" |
| #include "runtime/vframe_hp.hpp" |
| |
| vframe::vframe(const frame* fr, const RegisterMap* reg_map, JavaThread* thread) |
| : _reg_map(reg_map), _thread(thread) { |
| assert(fr != NULL, "must have frame"); |
| _fr = *fr; |
| } |
| |
| vframe::vframe(const frame* fr, JavaThread* thread) |
| : _reg_map(thread), _thread(thread) { |
| assert(fr != NULL, "must have frame"); |
| _fr = *fr; |
| } |
| |
| vframe* vframe::new_vframe(const frame* f, const RegisterMap* reg_map, JavaThread* thread) { |
| // Interpreter frame |
| if (f->is_interpreted_frame()) { |
| return new interpretedVFrame(f, reg_map, thread); |
| } |
| |
| // Compiled frame |
| CodeBlob* cb = f->cb(); |
| if (cb != NULL) { |
| if (cb->is_compiled()) { |
| CompiledMethod* nm = (CompiledMethod*)cb; |
| return new compiledVFrame(f, reg_map, thread, nm); |
| } |
| |
| if (f->is_runtime_frame()) { |
| // Skip this frame and try again. |
| RegisterMap temp_map = *reg_map; |
| frame s = f->sender(&temp_map); |
| return new_vframe(&s, &temp_map, thread); |
| } |
| } |
| |
| // External frame |
| return new externalVFrame(f, reg_map, thread); |
| } |
| |
| vframe* vframe::sender() const { |
| RegisterMap temp_map = *register_map(); |
| assert(is_top(), "just checking"); |
| if (_fr.is_entry_frame() && _fr.is_first_frame()) return NULL; |
| frame s = _fr.real_sender(&temp_map); |
| if (s.is_first_frame()) return NULL; |
| return vframe::new_vframe(&s, &temp_map, thread()); |
| } |
| |
| vframe* vframe::top() const { |
| vframe* vf = (vframe*) this; |
| while (!vf->is_top()) vf = vf->sender(); |
| return vf; |
| } |
| |
| |
| javaVFrame* vframe::java_sender() const { |
| vframe* f = sender(); |
| while (f != NULL) { |
| if (f->is_java_frame()) return javaVFrame::cast(f); |
| f = f->sender(); |
| } |
| return NULL; |
| } |
| |
| // ------------- javaVFrame -------------- |
| |
| GrowableArray<MonitorInfo*>* javaVFrame::locked_monitors() { |
| assert(SafepointSynchronize::is_at_safepoint() || JavaThread::current() == thread(), |
| "must be at safepoint or it's a java frame of the current thread"); |
| |
| GrowableArray<MonitorInfo*>* mons = monitors(); |
| GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(mons->length()); |
| if (mons->is_empty()) return result; |
| |
| bool found_first_monitor = false; |
| ObjectMonitor *pending_monitor = thread()->current_pending_monitor(); |
| ObjectMonitor *waiting_monitor = thread()->current_waiting_monitor(); |
| oop pending_obj = (pending_monitor != NULL ? (oop) pending_monitor->object() : (oop) NULL); |
| oop waiting_obj = (waiting_monitor != NULL ? (oop) waiting_monitor->object() : (oop) NULL); |
| |
| for (int index = (mons->length()-1); index >= 0; index--) { |
| MonitorInfo* monitor = mons->at(index); |
| if (monitor->eliminated() && is_compiled_frame()) continue; // skip eliminated monitor |
| oop obj = monitor->owner(); |
| if (obj == NULL) continue; // skip unowned monitor |
| // |
| // Skip the monitor that the thread is blocked to enter or waiting on |
| // |
| if (!found_first_monitor && (obj == pending_obj || obj == waiting_obj)) { |
| continue; |
| } |
| found_first_monitor = true; |
| result->append(monitor); |
| } |
| return result; |
| } |
| |
| void javaVFrame::print_locked_object_class_name(outputStream* st, Handle obj, const char* lock_state) { |
| if (obj.not_null()) { |
| st->print("\t- %s <" INTPTR_FORMAT "> ", lock_state, p2i(obj())); |
| if (obj->klass() == SystemDictionary::Class_klass()) { |
| st->print_cr("(a java.lang.Class for %s)", java_lang_Class::as_external_name(obj())); |
| } else { |
| Klass* k = obj->klass(); |
| st->print_cr("(a %s)", k->external_name()); |
| } |
| } |
| } |
| |
| void javaVFrame::print_lock_info_on(outputStream* st, int frame_count) { |
| Thread* THREAD = Thread::current(); |
| ResourceMark rm(THREAD); |
| |
| // If this is the first frame and it is java.lang.Object.wait(...) |
| // then print out the receiver. Locals are not always available, |
| // e.g., compiled native frames have no scope so there are no locals. |
| if (frame_count == 0) { |
| if (method()->name() == vmSymbols::wait_name() && |
| method()->method_holder()->name() == vmSymbols::java_lang_Object()) { |
| const char *wait_state = "waiting on"; // assume we are waiting |
| // If earlier in the output we reported java.lang.Thread.State == |
| // "WAITING (on object monitor)" and now we report "waiting on", then |
| // we are still waiting for notification or timeout. Otherwise if |
| // we earlier reported java.lang.Thread.State == "BLOCKED (on object |
| // monitor)", then we are actually waiting to re-lock the monitor. |
| // At this level we can't distinguish the two cases to report |
| // "waited on" rather than "waiting on" for the second case. |
| StackValueCollection* locs = locals(); |
| if (!locs->is_empty()) { |
| StackValue* sv = locs->at(0); |
| if (sv->type() == T_OBJECT) { |
| Handle o = locs->at(0)->get_obj(); |
| print_locked_object_class_name(st, o, wait_state); |
| } |
| } else { |
| st->print_cr("\t- %s <no object reference available>", wait_state); |
| } |
| } else if (thread()->current_park_blocker() != NULL) { |
| oop obj = thread()->current_park_blocker(); |
| Klass* k = obj->klass(); |
| st->print_cr("\t- %s <" INTPTR_FORMAT "> (a %s)", "parking to wait for ", p2i(obj), k->external_name()); |
| } |
| } |
| |
| // Print out all monitors that we have locked, or are trying to lock, |
| // including re-locking after being notified or timing out in a wait(). |
| GrowableArray<MonitorInfo*>* mons = monitors(); |
| if (!mons->is_empty()) { |
| bool found_first_monitor = false; |
| for (int index = (mons->length()-1); index >= 0; index--) { |
| MonitorInfo* monitor = mons->at(index); |
| if (monitor->eliminated() && is_compiled_frame()) { // Eliminated in compiled code |
| if (monitor->owner_is_scalar_replaced()) { |
| Klass* k = java_lang_Class::as_Klass(monitor->owner_klass()); |
| // format below for lockbits matches this one. |
| st->print("\t- eliminated <owner is scalar replaced> (a %s)", k->external_name()); |
| } else { |
| Handle obj(THREAD, monitor->owner()); |
| if (obj() != NULL) { |
| print_locked_object_class_name(st, obj, "eliminated"); |
| } |
| } |
| continue; |
| } |
| if (monitor->owner() != NULL) { |
| // the monitor is associated with an object, i.e., it is locked |
| |
| markOop mark = NULL; |
| const char *lock_state = "locked"; // assume we have the monitor locked |
| if (!found_first_monitor && frame_count == 0) { |
| // If this is the first frame and we haven't found an owned |
| // monitor before, then we need to see if we have completed |
| // the lock or if we are blocked trying to acquire it. Only |
| // an inflated monitor that is first on the monitor list in |
| // the first frame can block us on a monitor enter. |
| mark = monitor->owner()->mark(); |
| if (mark->has_monitor() && |
| ( // we have marked ourself as pending on this monitor |
| mark->monitor() == thread()->current_pending_monitor() || |
| // we are not the owner of this monitor |
| !mark->monitor()->is_entered(thread()) |
| )) { |
| lock_state = "waiting to lock"; |
| } else { |
| // We own the monitor which is not as interesting so |
| // disable the extra printing below. |
| mark = NULL; |
| } |
| } else if (frame_count != 0) { |
| // This is not the first frame so we either own this monitor |
| // or we owned the monitor before and called wait(). Because |
| // wait() could have been called on any monitor in a lower |
| // numbered frame on the stack, we have to check all the |
| // monitors on the list for this frame. |
| mark = monitor->owner()->mark(); |
| if (mark->has_monitor() && |
| ( // we have marked ourself as pending on this monitor |
| mark->monitor() == thread()->current_pending_monitor() || |
| // we are not the owner of this monitor |
| !mark->monitor()->is_entered(thread()) |
| )) { |
| lock_state = "waiting to re-lock in wait()"; |
| } else { |
| // We own the monitor which is not as interesting so |
| // disable the extra printing below. |
| mark = NULL; |
| } |
| } |
| print_locked_object_class_name(st, Handle(THREAD, monitor->owner()), lock_state); |
| if (ObjectMonitor::Knob_Verbose && mark != NULL) { |
| st->print("\t- lockbits="); |
| mark->print_on(st); |
| st->cr(); |
| } |
| |
| found_first_monitor = true; |
| } |
| } |
| } |
| } |
| |
| // ------------- interpretedVFrame -------------- |
| |
| u_char* interpretedVFrame::bcp() const { |
| return fr().interpreter_frame_bcp(); |
| } |
| |
| void interpretedVFrame::set_bcp(u_char* bcp) { |
| fr().interpreter_frame_set_bcp(bcp); |
| } |
| |
| intptr_t* interpretedVFrame::locals_addr_at(int offset) const { |
| assert(fr().is_interpreted_frame(), "frame should be an interpreted frame"); |
| return fr().interpreter_frame_local_at(offset); |
| } |
| |
| |
| GrowableArray<MonitorInfo*>* interpretedVFrame::monitors() const { |
| GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(5); |
| for (BasicObjectLock* current = (fr().previous_monitor_in_interpreter_frame(fr().interpreter_frame_monitor_begin())); |
| current >= fr().interpreter_frame_monitor_end(); |
| current = fr().previous_monitor_in_interpreter_frame(current)) { |
| result->push(new MonitorInfo(current->obj(), current->lock(), false, false)); |
| } |
| return result; |
| } |
| |
| int interpretedVFrame::bci() const { |
| return method()->bci_from(bcp()); |
| } |
| |
| Method* interpretedVFrame::method() const { |
| return fr().interpreter_frame_method(); |
| } |
| |
| static StackValue* create_stack_value_from_oop_map(const InterpreterOopMap& oop_mask, |
| int index, |
| const intptr_t* const addr) { |
| |
| assert(index >= 0 && |
| index < oop_mask.number_of_entries(), "invariant"); |
| |
| // categorize using oop_mask |
| if (oop_mask.is_oop(index)) { |
| // reference (oop) "r" |
| Handle h(Thread::current(), addr != NULL ? (*(oop*)addr) : (oop)NULL); |
| return new StackValue(h); |
| } |
| // value (integer) "v" |
| return new StackValue(addr != NULL ? *addr : 0); |
| } |
| |
| static bool is_in_expression_stack(const frame& fr, const intptr_t* const addr) { |
| assert(addr != NULL, "invariant"); |
| |
| // Ensure to be 'inside' the expresion stack (i.e., addr >= sp for Intel). |
| // In case of exceptions, the expression stack is invalid and the sp |
| // will be reset to express this condition. |
| if (frame::interpreter_frame_expression_stack_direction() > 0) { |
| return addr <= fr.interpreter_frame_tos_address(); |
| } |
| |
| return addr >= fr.interpreter_frame_tos_address(); |
| } |
| |
| static void stack_locals(StackValueCollection* result, |
| int length, |
| const InterpreterOopMap& oop_mask, |
| const frame& fr) { |
| |
| assert(result != NULL, "invariant"); |
| |
| for (int i = 0; i < length; ++i) { |
| const intptr_t* const addr = fr.interpreter_frame_local_at(i); |
| assert(addr != NULL, "invariant"); |
| assert(addr >= fr.sp(), "must be inside the frame"); |
| |
| StackValue* const sv = create_stack_value_from_oop_map(oop_mask, i, addr); |
| assert(sv != NULL, "sanity check"); |
| |
| result->add(sv); |
| } |
| } |
| |
| static void stack_expressions(StackValueCollection* result, |
| int length, |
| int max_locals, |
| const InterpreterOopMap& oop_mask, |
| const frame& fr) { |
| |
| assert(result != NULL, "invariant"); |
| |
| for (int i = 0; i < length; ++i) { |
| const intptr_t* addr = fr.interpreter_frame_expression_stack_at(i); |
| assert(addr != NULL, "invariant"); |
| if (!is_in_expression_stack(fr, addr)) { |
| // Need to ensure no bogus escapes. |
| addr = NULL; |
| } |
| |
| StackValue* const sv = create_stack_value_from_oop_map(oop_mask, |
| i + max_locals, |
| addr); |
| assert(sv != NULL, "sanity check"); |
| |
| result->add(sv); |
| } |
| } |
| |
| StackValueCollection* interpretedVFrame::locals() const { |
| return stack_data(false); |
| } |
| |
| StackValueCollection* interpretedVFrame::expressions() const { |
| return stack_data(true); |
| } |
| |
| /* |
| * Worker routine for fetching references and/or values |
| * for a particular bci in the interpretedVFrame. |
| * |
| * Returns data for either "locals" or "expressions", |
| * using bci relative oop_map (oop_mask) information. |
| * |
| * @param expressions bool switch controlling what data to return |
| (false == locals / true == expression) |
| * |
| */ |
| StackValueCollection* interpretedVFrame::stack_data(bool expressions) const { |
| |
| InterpreterOopMap oop_mask; |
| method()->mask_for(bci(), &oop_mask); |
| const int mask_len = oop_mask.number_of_entries(); |
| |
| // If the method is native, method()->max_locals() is not telling the truth. |
| // For our purposes, max locals instead equals the size of parameters. |
| const int max_locals = method()->is_native() ? |
| method()->size_of_parameters() : method()->max_locals(); |
| |
| assert(mask_len >= max_locals, "invariant"); |
| |
| const int length = expressions ? mask_len - max_locals : max_locals; |
| assert(length >= 0, "invariant"); |
| |
| StackValueCollection* const result = new StackValueCollection(length); |
| |
| if (0 == length) { |
| return result; |
| } |
| |
| if (expressions) { |
| stack_expressions(result, length, max_locals, oop_mask, fr()); |
| } else { |
| stack_locals(result, length, oop_mask, fr()); |
| } |
| |
| assert(length == result->size(), "invariant"); |
| |
| return result; |
| } |
| |
| void interpretedVFrame::set_locals(StackValueCollection* values) const { |
| if (values == NULL || values->size() == 0) return; |
| |
| // If the method is native, max_locals is not telling the truth. |
| // maxlocals then equals the size of parameters |
| const int max_locals = method()->is_native() ? |
| method()->size_of_parameters() : method()->max_locals(); |
| |
| assert(max_locals == values->size(), "Mismatch between actual stack format and supplied data"); |
| |
| // handle locals |
| for (int i = 0; i < max_locals; i++) { |
| // Find stack location |
| intptr_t *addr = locals_addr_at(i); |
| |
| // Depending on oop/int put it in the right package |
| const StackValue* const sv = values->at(i); |
| assert(sv != NULL, "sanity check"); |
| if (sv->type() == T_OBJECT) { |
| *(oop *) addr = (sv->get_obj())(); |
| } else { // integer |
| *addr = sv->get_int(); |
| } |
| } |
| } |
| |
| // ------------- cChunk -------------- |
| |
| entryVFrame::entryVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread) |
| : externalVFrame(fr, reg_map, thread) {} |
| |
| #ifdef ASSERT |
| void vframeStreamCommon::found_bad_method_frame() const { |
| // 6379830 Cut point for an assertion that occasionally fires when |
| // we are using the performance analyzer. |
| // Disable this assert when testing the analyzer with fastdebug. |
| // -XX:SuppressErrorAt=vframe.cpp:XXX (XXX=following line number) |
| fatal("invalid bci or invalid scope desc"); |
| } |
| #endif |
| |
| // top-frame will be skipped |
| vframeStream::vframeStream(JavaThread* thread, frame top_frame, |
| bool stop_at_java_call_stub) : vframeStreamCommon(thread) { |
| _stop_at_java_call_stub = stop_at_java_call_stub; |
| |
| // skip top frame, as it may not be at safepoint |
| _frame = top_frame.sender(&_reg_map); |
| while (!fill_from_frame()) { |
| _frame = _frame.sender(&_reg_map); |
| } |
| } |
| |
| |
| // Step back n frames, skip any pseudo frames in between. |
| // This function is used in Class.forName, Class.newInstance, Method.Invoke, |
| // AccessController.doPrivileged. |
| void vframeStreamCommon::security_get_caller_frame(int depth) { |
| assert(depth >= 0, "invalid depth: %d", depth); |
| for (int n = 0; !at_end(); security_next()) { |
| if (!method()->is_ignored_by_security_stack_walk()) { |
| if (n == depth) { |
| // We have reached the desired depth; return. |
| return; |
| } |
| n++; // this is a non-skipped frame; count it against the depth |
| } |
| } |
| // NOTE: At this point there were not enough frames on the stack |
| // to walk to depth. Callers of this method have to check for at_end. |
| } |
| |
| |
| void vframeStreamCommon::security_next() { |
| if (method()->is_prefixed_native()) { |
| skip_prefixed_method_and_wrappers(); // calls next() |
| } else { |
| next(); |
| } |
| } |
| |
| |
| void vframeStreamCommon::skip_prefixed_method_and_wrappers() { |
| ResourceMark rm; |
| HandleMark hm; |
| |
| int method_prefix_count = 0; |
| char** method_prefixes = JvmtiExport::get_all_native_method_prefixes(&method_prefix_count); |
| Klass* prefixed_klass = method()->method_holder(); |
| const char* prefixed_name = method()->name()->as_C_string(); |
| size_t prefixed_name_len = strlen(prefixed_name); |
| int prefix_index = method_prefix_count-1; |
| |
| while (!at_end()) { |
| next(); |
| if (method()->method_holder() != prefixed_klass) { |
| break; // classes don't match, can't be a wrapper |
| } |
| const char* name = method()->name()->as_C_string(); |
| size_t name_len = strlen(name); |
| size_t prefix_len = prefixed_name_len - name_len; |
| if (prefix_len <= 0 || strcmp(name, prefixed_name + prefix_len) != 0) { |
| break; // prefixed name isn't prefixed version of method name, can't be a wrapper |
| } |
| for (; prefix_index >= 0; --prefix_index) { |
| const char* possible_prefix = method_prefixes[prefix_index]; |
| size_t possible_prefix_len = strlen(possible_prefix); |
| if (possible_prefix_len == prefix_len && |
| strncmp(possible_prefix, prefixed_name, prefix_len) == 0) { |
| break; // matching prefix found |
| } |
| } |
| if (prefix_index < 0) { |
| break; // didn't find the prefix, can't be a wrapper |
| } |
| prefixed_name = name; |
| prefixed_name_len = name_len; |
| } |
| } |
| |
| |
| void vframeStreamCommon::skip_reflection_related_frames() { |
| while (!at_end() && |
| (method()->method_holder()->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass()) || |
| method()->method_holder()->is_subclass_of(SystemDictionary::reflect_ConstructorAccessorImpl_klass()))) { |
| next(); |
| } |
| } |
| |
| |
| #ifndef PRODUCT |
| void vframe::print() { |
| if (WizardMode) _fr.print_value_on(tty,NULL); |
| } |
| |
| |
| void vframe::print_value() const { |
| ((vframe*)this)->print(); |
| } |
| |
| |
| void entryVFrame::print_value() const { |
| ((entryVFrame*)this)->print(); |
| } |
| |
| void entryVFrame::print() { |
| vframe::print(); |
| tty->print_cr("C Chunk inbetween Java"); |
| tty->print_cr("C link " INTPTR_FORMAT, p2i(_fr.link())); |
| } |
| |
| |
| // ------------- javaVFrame -------------- |
| |
| static void print_stack_values(const char* title, StackValueCollection* values) { |
| if (values->is_empty()) return; |
| tty->print_cr("\t%s:", title); |
| values->print(); |
| } |
| |
| |
| void javaVFrame::print() { |
| ResourceMark rm; |
| vframe::print(); |
| tty->print("\t"); |
| method()->print_value(); |
| tty->cr(); |
| tty->print_cr("\tbci: %d", bci()); |
| |
| print_stack_values("locals", locals()); |
| print_stack_values("expressions", expressions()); |
| |
| GrowableArray<MonitorInfo*>* list = monitors(); |
| if (list->is_empty()) return; |
| tty->print_cr("\tmonitor list:"); |
| for (int index = (list->length()-1); index >= 0; index--) { |
| MonitorInfo* monitor = list->at(index); |
| tty->print("\t obj\t"); |
| if (monitor->owner_is_scalar_replaced()) { |
| Klass* k = java_lang_Class::as_Klass(monitor->owner_klass()); |
| tty->print("( is scalar replaced %s)", k->external_name()); |
| } else if (monitor->owner() == NULL) { |
| tty->print("( null )"); |
| } else { |
| monitor->owner()->print_value(); |
| tty->print("(owner=" INTPTR_FORMAT ")", p2i(monitor->owner())); |
| } |
| if (monitor->eliminated()) { |
| if(is_compiled_frame()) { |
| tty->print(" ( lock is eliminated in compiled frame )"); |
| } else { |
| tty->print(" ( lock is eliminated, frame not compiled )"); |
| } |
| } |
| tty->cr(); |
| tty->print("\t "); |
| monitor->lock()->print_on(tty); |
| tty->cr(); |
| } |
| } |
| |
| |
| void javaVFrame::print_value() const { |
| Method* m = method(); |
| InstanceKlass* k = m->method_holder(); |
| tty->print_cr("frame( sp=" INTPTR_FORMAT ", unextended_sp=" INTPTR_FORMAT ", fp=" INTPTR_FORMAT ", pc=" INTPTR_FORMAT ")", |
| p2i(_fr.sp()), p2i(_fr.unextended_sp()), p2i(_fr.fp()), p2i(_fr.pc())); |
| tty->print("%s.%s", k->internal_name(), m->name()->as_C_string()); |
| |
| if (!m->is_native()) { |
| Symbol* source_name = k->source_file_name(); |
| int line_number = m->line_number_from_bci(bci()); |
| if (source_name != NULL && (line_number != -1)) { |
| tty->print("(%s:%d)", source_name->as_C_string(), line_number); |
| } |
| } else { |
| tty->print("(Native Method)"); |
| } |
| // Check frame size and print warning if it looks suspiciously large |
| if (fr().sp() != NULL) { |
| RegisterMap map = *register_map(); |
| uint size = fr().frame_size(&map); |
| #ifdef _LP64 |
| if (size > 8*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size); |
| #else |
| if (size > 4*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size); |
| #endif |
| } |
| } |
| |
| |
| bool javaVFrame::structural_compare(javaVFrame* other) { |
| // Check static part |
| if (method() != other->method()) return false; |
| if (bci() != other->bci()) return false; |
| |
| // Check locals |
| StackValueCollection *locs = locals(); |
| StackValueCollection *other_locs = other->locals(); |
| assert(locs->size() == other_locs->size(), "sanity check"); |
| int i; |
| for(i = 0; i < locs->size(); i++) { |
| // it might happen the compiler reports a conflict and |
| // the interpreter reports a bogus int. |
| if ( is_compiled_frame() && locs->at(i)->type() == T_CONFLICT) continue; |
| if (other->is_compiled_frame() && other_locs->at(i)->type() == T_CONFLICT) continue; |
| |
| if (!locs->at(i)->equal(other_locs->at(i))) |
| return false; |
| } |
| |
| // Check expressions |
| StackValueCollection* exprs = expressions(); |
| StackValueCollection* other_exprs = other->expressions(); |
| assert(exprs->size() == other_exprs->size(), "sanity check"); |
| for(i = 0; i < exprs->size(); i++) { |
| if (!exprs->at(i)->equal(other_exprs->at(i))) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| |
| void javaVFrame::print_activation(int index) const { |
| // frame number and method |
| tty->print("%2d - ", index); |
| ((vframe*)this)->print_value(); |
| tty->cr(); |
| |
| if (WizardMode) { |
| ((vframe*)this)->print(); |
| tty->cr(); |
| } |
| } |
| |
| |
| void javaVFrame::verify() const { |
| } |
| |
| |
| void interpretedVFrame::verify() const { |
| } |
| |
| |
| // ------------- externalVFrame -------------- |
| |
| void externalVFrame::print() { |
| _fr.print_value_on(tty,NULL); |
| } |
| |
| |
| void externalVFrame::print_value() const { |
| ((vframe*)this)->print(); |
| } |
| #endif // PRODUCT |