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src/share/vm/classfile/loaderConstraints.cpp

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rev 13288 : imported patch 8181917-refactor-ul-logstream

*** 23,32 **** --- 23,33 ---- */ #include "precompiled.hpp" #include "classfile/classLoaderData.inline.hpp" #include "classfile/loaderConstraints.hpp" + #include "logging/log.hpp" #include "memory/resourceArea.hpp" #include "oops/oop.inline.hpp" #include "runtime/handles.inline.hpp" #include "runtime/safepoint.hpp" #include "utilities/hashtable.inline.hpp"
*** 86,125 **** } void LoaderConstraintTable::purge_loader_constraints() { assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); // Remove unloaded entries from constraint table for (int index = 0; index < table_size(); index++) { LoaderConstraintEntry** p = bucket_addr(index); while(*p) { LoaderConstraintEntry* probe = *p; InstanceKlass* klass = probe->klass(); // Remove klass that is no longer alive if (klass != NULL && klass->class_loader_data()->is_unloading()) { probe->set_klass(NULL); ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("purging class object from constraint for name %s," " loader list:", probe->name()->as_C_string()); for (int i = 0; i < probe->num_loaders(); i++) { ! out->print_cr(" [%d]: %s", i, probe->loader_data(i)->loader_name()); } } } // Remove entries no longer alive from loader array int n = 0; while (n < probe->num_loaders()) { if (probe->loader_data(n)->is_unloading()) { ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("purging loader %s from constraint for name %s", probe->loader_data(n)->loader_name(), probe->name()->as_C_string() ); } --- 87,125 ---- } void LoaderConstraintTable::purge_loader_constraints() { assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); + LogTarget(Info, class, loader, constraints) lt; // Remove unloaded entries from constraint table for (int index = 0; index < table_size(); index++) { LoaderConstraintEntry** p = bucket_addr(index); while(*p) { LoaderConstraintEntry* probe = *p; InstanceKlass* klass = probe->klass(); // Remove klass that is no longer alive if (klass != NULL && klass->class_loader_data()->is_unloading()) { probe->set_klass(NULL); ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("purging class object from constraint for name %s," " loader list:", probe->name()->as_C_string()); for (int i = 0; i < probe->num_loaders(); i++) { ! lt.print(" [%d]: %s", i, probe->loader_data(i)->loader_name()); } } } // Remove entries no longer alive from loader array int n = 0; while (n < probe->num_loaders()) { if (probe->loader_data(n)->is_unloading()) { ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("purging loader %s from constraint for name %s", probe->loader_data(n)->loader_name(), probe->name()->as_C_string() ); }
*** 127,142 **** int num = probe->num_loaders() - 1; probe->set_num_loaders(num); probe->set_loader_data(n, probe->loader_data(num)); probe->set_loader_data(num, NULL); ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("new loader list:"); for (int i = 0; i < probe->num_loaders(); i++) { ! out->print_cr(" [%d]: %s", i, probe->loader_data(i)->loader_name()); } } continue; // current element replaced, so restart without --- 127,141 ---- int num = probe->num_loaders() - 1; probe->set_num_loaders(num); probe->set_loader_data(n, probe->loader_data(num)); probe->set_loader_data(num, NULL); ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("new loader list:"); for (int i = 0; i < probe->num_loaders(); i++) { ! lt.print(" [%d]: %s", i, probe->loader_data(i)->loader_name()); } } continue; // current element replaced, so restart without
*** 144,157 **** } n++; } // Check whether entry should be purged if (probe->num_loaders() < 2) { ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("purging complete constraint for name %s", probe->name()->as_C_string()); } // Purge entry *p = probe->next(); --- 143,155 ---- } n++; } // Check whether entry should be purged if (probe->num_loaders() < 2) { ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("purging complete constraint for name %s", probe->name()->as_C_string()); } // Purge entry *p = probe->next();
*** 172,185 **** } } void log_ldr_constraint_msg(Symbol* class_name, const char* reason, Handle class_loader1, Handle class_loader2) { ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("Failed to add constraint for name: %s, loader[0]: %s," " loader[1]: %s, Reason: %s", class_name->as_C_string(), SystemDictionary::loader_name(class_loader1()), SystemDictionary::loader_name(class_loader2()), reason); --- 170,183 ---- } } void log_ldr_constraint_msg(Symbol* class_name, const char* reason, Handle class_loader1, Handle class_loader2) { ! LogTarget(Info, class, loader, constraints) lt; ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("Failed to add constraint for name: %s, loader[0]: %s," " loader[1]: %s, Reason: %s", class_name->as_C_string(), SystemDictionary::loader_name(class_loader1()), SystemDictionary::loader_name(class_loader2()), reason);
*** 187,196 **** --- 185,195 ---- } bool LoaderConstraintTable::add_entry(Symbol* class_name, InstanceKlass* klass1, Handle class_loader1, InstanceKlass* klass2, Handle class_loader2) { + LogTarget(Info, class, loader, constraints) lt; if (klass1 != NULL && klass2 != NULL) { if (klass1 == klass2) { // Same type already loaded in both places. There is no need for any constraint. return true; } else {
*** 242,269 **** p->set_loader(0, class_loader1()); p->set_loader(1, class_loader2()); p->set_klass(klass); p->set_next(bucket(index)); set_entry(index, p); ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("adding new constraint for name: %s, loader[0]: %s," " loader[1]: %s", class_name->as_C_string(), SystemDictionary::loader_name(class_loader1()), SystemDictionary::loader_name(class_loader2()) ); } } else if (*pp1 == *pp2) { /* constraint already imposed */ if ((*pp1)->klass() == NULL) { (*pp1)->set_klass(klass); ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("setting class object in existing constraint for" " name: %s and loader %s", class_name->as_C_string(), SystemDictionary::loader_name(class_loader1()) ); } --- 241,266 ---- p->set_loader(0, class_loader1()); p->set_loader(1, class_loader2()); p->set_klass(klass); p->set_next(bucket(index)); set_entry(index, p); ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("adding new constraint for name: %s, loader[0]: %s," " loader[1]: %s", class_name->as_C_string(), SystemDictionary::loader_name(class_loader1()), SystemDictionary::loader_name(class_loader2()) ); } } else if (*pp1 == *pp2) { /* constraint already imposed */ if ((*pp1)->klass() == NULL) { (*pp1)->set_klass(klass); ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("setting class object in existing constraint for" " name: %s and loader %s", class_name->as_C_string(), SystemDictionary::loader_name(class_loader1()) ); }
*** 285,312 **** // return true if the constraint was updated, false if the constraint is // violated bool LoaderConstraintTable::check_or_update(InstanceKlass* k, Handle loader, Symbol* name) { LoaderConstraintEntry* p = *(find_loader_constraint(name, loader)); if (p && p->klass() != NULL && p->klass() != k) { ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("constraint check failed for name %s, loader %s: " "the presented class object differs from that stored", name->as_C_string(), SystemDictionary::loader_name(loader())); } return false; } else { if (p && p->klass() == NULL) { p->set_klass(k); ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("updating constraint for name %s, loader %s, " "by setting class object", name->as_C_string(), SystemDictionary::loader_name(loader())); } } --- 282,308 ---- // return true if the constraint was updated, false if the constraint is // violated bool LoaderConstraintTable::check_or_update(InstanceKlass* k, Handle loader, Symbol* name) { + LogTarget(Info, class, loader, constraints) lt; LoaderConstraintEntry* p = *(find_loader_constraint(name, loader)); if (p && p->klass() != NULL && p->klass() != k) { ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("constraint check failed for name %s, loader %s: " "the presented class object differs from that stored", name->as_C_string(), SystemDictionary::loader_name(loader())); } return false; } else { if (p && p->klass() == NULL) { p->set_klass(k); ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("updating constraint for name %s, loader %s, " "by setting class object", name->as_C_string(), SystemDictionary::loader_name(loader())); } }
*** 350,363 **** InstanceKlass* klass) { ensure_loader_constraint_capacity(p, 1); int num = p->num_loaders(); p->set_loader(num, loader()); p->set_num_loaders(num + 1); ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("extending constraint for name %s by adding loader[%d]: %s %s", p->name()->as_C_string(), num, SystemDictionary::loader_name(loader()), (p->klass() == NULL ? " and setting class object" : "") ); --- 346,359 ---- InstanceKlass* klass) { ensure_loader_constraint_capacity(p, 1); int num = p->num_loaders(); p->set_loader(num, loader()); p->set_num_loaders(num + 1); ! LogTarget(Info, class, loader, constraints) lt; ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("extending constraint for name %s by adding loader[%d]: %s %s", p->name()->as_C_string(), num, SystemDictionary::loader_name(loader()), (p->klass() == NULL ? " and setting class object" : "") );
*** 390,412 **** int num = p1->num_loaders(); p1->set_loader_data(num, p2->loader_data(i)); p1->set_num_loaders(num + 1); } ! if (log_is_enabled(Info, class, loader, constraints)) { ResourceMark rm; ! outputStream* out = Log(class, loader, constraints)::info_stream(); ! out->print_cr("merged constraints for name %s, new loader list:", p1->name()->as_C_string() ); for (int i = 0; i < p1->num_loaders(); i++) { ! out->print_cr(" [%d]: %s", i, p1->loader_data(i)->loader_name()); } if (p1->klass() == NULL) { ! out->print_cr("... and setting class object"); } } // p1->klass() will hold NULL if klass, p2->klass(), and old // p1->klass() are all NULL. In addition, all three must have --- 386,408 ---- int num = p1->num_loaders(); p1->set_loader_data(num, p2->loader_data(i)); p1->set_num_loaders(num + 1); } ! LogTarget(Info, class, loader, constraints) lt; ! if (lt.is_enabled()) { ResourceMark rm; ! lt.print("merged constraints for name %s, new loader list:", p1->name()->as_C_string() ); for (int i = 0; i < p1->num_loaders(); i++) { ! lt.print(" [%d]: %s", i, p1->loader_data(i)->loader_name()); } if (p1->klass() == NULL) { ! lt.print("... and setting class object"); } } // p1->klass() will hold NULL if klass, p2->klass(), and old // p1->klass() are all NULL. In addition, all three must have
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