jdk8-mips64-public/hotspot: src/share/vm/oops/methodKlass.cpp@c89f86385056 (annotated)

src/share/vm/oops/methodKlass.cpp@c89f86385056 (annotated)

src/share/vm/oops/methodKlass.cpp

Fri, 20 Mar 2009 23:19:36 -0700

author: jrose
date: Fri, 20 Mar 2009 23:19:36 -0700
changeset 1100: c89f86385056
parent 435: a61af66fc99e
child 1145: e5b0439ef4ae
permissions: -rw-r--r--

6814659: separable cleanups and subroutines for 6655638
Summary: preparatory but separable changes for method handles
Reviewed-by: kvn, never

 /*
  * Copyright 1997-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  *
  */
 # include "incls/_precompiled.incl"
 # include "incls/_methodKlass.cpp.incl"
 klassOop methodKlass::create_klass(TRAPS) {
   methodKlass o;
   KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
   KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL);
   // Make sure size calculation is right
   assert(k()->size() == align_object_size(header_size()), "wrong size for object");
   java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror
   return k();
 }
 int methodKlass::oop_size(oop obj) const {
   assert(obj->is_method(), "must be method oop");
   return methodOop(obj)->object_size();
 }
 bool methodKlass::oop_is_parsable(oop obj) const {
   assert(obj->is_method(), "must be method oop");
   return methodOop(obj)->object_is_parsable();
 }
 methodOop methodKlass::allocate(constMethodHandle xconst,
                                 AccessFlags access_flags, TRAPS) {
   int size = methodOopDesc::object_size(access_flags.is_native());
   KlassHandle h_k(THREAD, as_klassOop());
   assert(xconst()->is_parsable(), "possible publication protocol violation");
   methodOop m = (methodOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL);
   assert(!m->is_parsable(), "not expecting parsability yet.");
   No_Safepoint_Verifier no_safepoint;  // until m becomes parsable below
   m->set_constMethod(xconst());
   m->set_access_flags(access_flags);
   m->set_method_size(size);
   m->set_name_index(0);
   m->set_signature_index(0);
 #ifdef CC_INTERP
   m->set_result_index(T_VOID);
 #endif
   m->set_constants(NULL);
   m->set_max_stack(0);
   m->set_max_locals(0);
   m->clear_intrinsic_id_cache();
   m->set_method_data(NULL);
   m->set_interpreter_throwout_count(0);
   m->set_vtable_index(methodOopDesc::garbage_vtable_index);
   // Fix and bury in methodOop
   m->set_interpreter_entry(NULL); // sets i2i entry and from_int
   m->set_highest_tier_compile(CompLevel_none);
   m->set_adapter_entry(NULL);
   m->clear_code(); // from_c/from_i get set to c2i/i2i
   if (access_flags.is_native()) {
     m->clear_native_function();
     m->set_signature_handler(NULL);
   }
   NOT_PRODUCT(m->set_compiled_invocation_count(0);)
   m->set_interpreter_invocation_count(0);
   m->invocation_counter()->init();
   m->backedge_counter()->init();
   m->clear_number_of_breakpoints();
   assert(m->is_parsable(), "must be parsable here.");
   assert(m->size() == size, "wrong size for object");
   // We should not publish an uprasable object's reference
   // into one that is parsable, since that presents problems
   // for the concurrent parallel marking and precleaning phases
   // of concurrent gc (CMS).
   xconst->set_method(m);
   return m;
 }
 void methodKlass::oop_follow_contents(oop obj) {
   assert (obj->is_method(), "object must be method");
   methodOop m = methodOop(obj);
   // Performance tweak: We skip iterating over the klass pointer since we
   // know that Universe::methodKlassObj never moves.
   MarkSweep::mark_and_push(m->adr_constMethod());
   MarkSweep::mark_and_push(m->adr_constants());
   if (m->method_data() != NULL) {
     MarkSweep::mark_and_push(m->adr_method_data());
   }
 }
 #ifndef SERIALGC
 void methodKlass::oop_follow_contents(ParCompactionManager* cm,
                                       oop obj) {
   assert (obj->is_method(), "object must be method");
   methodOop m = methodOop(obj);
   // Performance tweak: We skip iterating over the klass pointer since we
   // know that Universe::methodKlassObj never moves.
   PSParallelCompact::mark_and_push(cm, m->adr_constMethod());
   PSParallelCompact::mark_and_push(cm, m->adr_constants());
 #ifdef COMPILER2
   if (m->method_data() != NULL) {
     PSParallelCompact::mark_and_push(cm, m->adr_method_data());
   }
 #endif // COMPILER2
 }
 #endif // SERIALGC
 int methodKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
   assert (obj->is_method(), "object must be method");
   methodOop m = methodOop(obj);
   // Get size before changing pointers.
   // Don't call size() or oop_size() since that is a virtual call.
   int size = m->object_size();
   // Performance tweak: We skip iterating over the klass pointer since we
   // know that Universe::methodKlassObj never moves
   blk->do_oop(m->adr_constMethod());
   blk->do_oop(m->adr_constants());
   if (m->method_data() != NULL) {
     blk->do_oop(m->adr_method_data());
   }
   return size;
 }
 int methodKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
   assert (obj->is_method(), "object must be method");
   methodOop m = methodOop(obj);
   // Get size before changing pointers.
   // Don't call size() or oop_size() since that is a virtual call.
   int size = m->object_size();
   // Performance tweak: We skip iterating over the klass pointer since we
   // know that Universe::methodKlassObj never moves.
   oop* adr;
   adr = m->adr_constMethod();
   if (mr.contains(adr)) blk->do_oop(adr);
   adr = m->adr_constants();
   if (mr.contains(adr)) blk->do_oop(adr);
   if (m->method_data() != NULL) {
     adr = m->adr_method_data();
     if (mr.contains(adr)) blk->do_oop(adr);
   }
   return size;
 }
 int methodKlass::oop_adjust_pointers(oop obj) {
   assert(obj->is_method(), "should be method");
   methodOop m = methodOop(obj);
   // Get size before changing pointers.
   // Don't call size() or oop_size() since that is a virtual call.
   int size = m->object_size();
   // Performance tweak: We skip iterating over the klass pointer since we
   // know that Universe::methodKlassObj never moves.
   MarkSweep::adjust_pointer(m->adr_constMethod());
   MarkSweep::adjust_pointer(m->adr_constants());
   if (m->method_data() != NULL) {
     MarkSweep::adjust_pointer(m->adr_method_data());
   }
   return size;
 }
 #ifndef SERIALGC
 void methodKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
   assert(obj->is_method(), "should be method");
 }
 void methodKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
   assert(obj->is_method(), "should be method");
 }
 int methodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
   assert(obj->is_method(), "should be method");
   methodOop m = methodOop(obj);
   PSParallelCompact::adjust_pointer(m->adr_constMethod());
   PSParallelCompact::adjust_pointer(m->adr_constants());
 #ifdef COMPILER2
   if (m->method_data() != NULL) {
     PSParallelCompact::adjust_pointer(m->adr_method_data());
   }
 #endif // COMPILER2
   return m->object_size();
 }
 int methodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
                                      HeapWord* beg_addr, HeapWord* end_addr) {
   assert(obj->is_method(), "should be method");
   oop* p;
   methodOop m = methodOop(obj);
   p = m->adr_constMethod();
   PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
   p = m->adr_constants();
   PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
 #ifdef COMPILER2
   if (m->method_data() != NULL) {
     p = m->adr_method_data();
     PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
   }
 #endif // COMPILER2
   return m->object_size();
 }
 #endif // SERIALGC
 #ifndef PRODUCT
 // Printing
 void methodKlass::oop_print_on(oop obj, outputStream* st) {
   ResourceMark rm;
   assert(obj->is_method(), "must be method");
   Klass::oop_print_on(obj, st);
   methodOop m = methodOop(obj);
   st->print   (" - method holder:     ");    m->method_holder()->print_value_on(st); st->cr();
   st->print   (" - constants:         " INTPTR_FORMAT, " ", (address)m->constants());
   m->constants()->print_value_on(st); st->cr();
   st->print   (" - access:            0x%x  ", m->access_flags().as_int()); m->access_flags().print_on(st); st->cr();
   st->print   (" - name:              ");    m->name()->print_value_on(st); st->cr();
   st->print   (" - signature:         ");    m->signature()->print_value_on(st); st->cr();
   st->print_cr(" - max stack:         %d",   m->max_stack());
   st->print_cr(" - max locals:        %d",   m->max_locals());
   st->print_cr(" - size of params:    %d",   m->size_of_parameters());
   st->print_cr(" - method size:       %d",   m->method_size());
   st->print_cr(" - vtable index:      %d",   m->_vtable_index);
   st->print_cr(" - i2i entry:         " INTPTR_FORMAT, m->interpreter_entry());
   st->print_cr(" - adapter:           " INTPTR_FORMAT, m->adapter());
   st->print_cr(" - compiled entry     " INTPTR_FORMAT, m->from_compiled_entry());
   st->print_cr(" - code size:         %d",   m->code_size());
   if (m->code_size() != 0) {
     st->print_cr(" - code start:        " INTPTR_FORMAT, m->code_base());
     st->print_cr(" - code end (excl):   " INTPTR_FORMAT, m->code_base() + m->code_size());
   }
   if (m->method_data() != NULL) {
     st->print_cr(" - method data:       " INTPTR_FORMAT, (address)m->method_data());
   }
   st->print_cr(" - checked ex length: %d",   m->checked_exceptions_length());
   if (m->checked_exceptions_length() > 0) {
     CheckedExceptionElement* table = m->checked_exceptions_start();
     st->print_cr(" - checked ex start:  " INTPTR_FORMAT, table);
     if (Verbose) {
       for (int i = 0; i < m->checked_exceptions_length(); i++) {
         st->print_cr("   - throws %s", m->constants()->printable_name_at(table[i].class_cp_index));
       }
     }
   }
   if (m->has_linenumber_table()) {
     u_char* table = m->compressed_linenumber_table();
     st->print_cr(" - linenumber start:  " INTPTR_FORMAT, table);
     if (Verbose) {
       CompressedLineNumberReadStream stream(table);
       while (stream.read_pair()) {
         st->print_cr("   - line %d: %d", stream.line(), stream.bci());
       }
     }
   }
   st->print_cr(" - localvar length:   %d",   m->localvariable_table_length());
   if (m->localvariable_table_length() > 0) {
     LocalVariableTableElement* table = m->localvariable_table_start();
     st->print_cr(" - localvar start:    " INTPTR_FORMAT, table);
     if (Verbose) {
       for (int i = 0; i < m->localvariable_table_length(); i++) {
         int bci = table[i].start_bci;
         int len = table[i].length;
         const char* name = m->constants()->printable_name_at(table[i].name_cp_index);
         const char* desc = m->constants()->printable_name_at(table[i].descriptor_cp_index);
         int slot = table[i].slot;
         st->print_cr("   - %s %s bci=%d len=%d slot=%d", desc, name, bci, len, slot);
       }
     }
   }
   if (m->code() != NULL) {
     st->print   (" - compiled code: ");
     m->code()->print_value_on(st);
     st->cr();
   }
   if (m->is_native()) {
     st->print_cr(" - native function:   " INTPTR_FORMAT, m->native_function());
     st->print_cr(" - signature handler: " INTPTR_FORMAT, m->signature_handler());
   }
 }
 void methodKlass::oop_print_value_on(oop obj, outputStream* st) {
   assert(obj->is_method(), "must be method");
   Klass::oop_print_value_on(obj, st);
   methodOop m = methodOop(obj);
   st->print(" ");
   m->name()->print_value_on(st);
   st->print(" ");
   m->signature()->print_value_on(st);
   st->print(" in ");
   m->method_holder()->print_value_on(st);
   if (WizardMode) st->print("[%d,%d]", m->size_of_parameters(), m->max_locals());
   if (WizardMode && m->code() != NULL) st->print(" ((nmethod*)%p)", m->code());
 }
 #endif // PRODUCT
 const char* methodKlass::internal_name() const {
   return "{method}";
 }
 // Verification
 void methodKlass::oop_verify_on(oop obj, outputStream* st) {
   Klass::oop_verify_on(obj, st);
   guarantee(obj->is_method(), "object must be method");
   if (!obj->partially_loaded()) {
     methodOop m = methodOop(obj);
     guarantee(m->is_perm(),  "should be in permspace");
     guarantee(m->name()->is_perm(), "should be in permspace");
     guarantee(m->name()->is_symbol(), "should be symbol");
     guarantee(m->signature()->is_perm(), "should be in permspace");
     guarantee(m->signature()->is_symbol(), "should be symbol");
     guarantee(m->constants()->is_perm(), "should be in permspace");
     guarantee(m->constants()->is_constantPool(), "should be constant pool");
     guarantee(m->constMethod()->is_constMethod(), "should be constMethodOop");
     guarantee(m->constMethod()->is_perm(), "should be in permspace");
     methodDataOop method_data = m->method_data();
     guarantee(method_data == NULL ||
               method_data->is_perm(), "should be in permspace");
     guarantee(method_data == NULL ||
               method_data->is_methodData(), "should be method data");
   }
 }
 bool methodKlass::oop_partially_loaded(oop obj) const {
   assert(obj->is_method(), "object must be method");
   methodOop m = methodOop(obj);
   constMethodOop xconst = m->constMethod();
   assert(xconst != NULL, "const method must be set");
   constMethodKlass* ck = constMethodKlass::cast(xconst->klass());
   return ck->oop_partially_loaded(xconst);
 }
 void methodKlass::oop_set_partially_loaded(oop obj) {
   assert(obj->is_method(), "object must be method");
   methodOop m = methodOop(obj);
   constMethodOop xconst = m->constMethod();
   assert(xconst != NULL, "const method must be set");
   constMethodKlass* ck = constMethodKlass::cast(xconst->klass());
   ck->oop_set_partially_loaded(xconst);
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/oops/methodKlass.cpp@c89f86385056 (annotated)

src/share/vm/oops/methodKlass.cpp