hotspot/src/share/vm/runtime/vframe.cpp
author hseigel
Wed, 11 Jun 2014 09:58:23 -0400
changeset 25057 f38210f84f8c
parent 24938 83d8425d85a3
child 25473 185aff4215a4
permissions -rw-r--r--
8031819: Remove legacy jdk checks and code Summary: Delete old jdk specific code. Reviewed-by: dholmes, coleenp, zgu, lfoltan
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/*
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 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/codeCache.hpp"
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#include "code/debugInfoRec.hpp"
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#include "code/nmethod.hpp"
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#include "code/pcDesc.hpp"
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#include "code/scopeDesc.hpp"
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#include "interpreter/interpreter.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/objectMonitor.hpp"
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#include "runtime/objectMonitor.inline.hpp"
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#include "runtime/signature.hpp"
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#include "runtime/stubRoutines.hpp"
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#include "runtime/synchronizer.hpp"
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#include "runtime/vframe.hpp"
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#include "runtime/vframeArray.hpp"
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#include "runtime/vframe_hp.hpp"
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vframe::vframe(const frame* fr, const RegisterMap* reg_map, JavaThread* thread)
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: _reg_map(reg_map), _thread(thread) {
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  assert(fr != NULL, "must have frame");
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  _fr = *fr;
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}
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vframe::vframe(const frame* fr, JavaThread* thread)
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: _reg_map(thread), _thread(thread) {
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  assert(fr != NULL, "must have frame");
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  _fr = *fr;
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}
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vframe* vframe::new_vframe(const frame* f, const RegisterMap* reg_map, JavaThread* thread) {
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  // Interpreter frame
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  if (f->is_interpreted_frame()) {
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    return new interpretedVFrame(f, reg_map, thread);
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  }
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  // Compiled frame
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  CodeBlob* cb = f->cb();
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  if (cb != NULL) {
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    if (cb->is_nmethod()) {
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      nmethod* nm = (nmethod*)cb;
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      return new compiledVFrame(f, reg_map, thread, nm);
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    }
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    if (f->is_runtime_frame()) {
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      // Skip this frame and try again.
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      RegisterMap temp_map = *reg_map;
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      frame s = f->sender(&temp_map);
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      return new_vframe(&s, &temp_map, thread);
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    }
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  }
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  // External frame
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  return new externalVFrame(f, reg_map, thread);
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}
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vframe* vframe::sender() const {
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  RegisterMap temp_map = *register_map();
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  assert(is_top(), "just checking");
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  if (_fr.is_entry_frame() && _fr.is_first_frame()) return NULL;
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  frame s = _fr.real_sender(&temp_map);
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  if (s.is_first_frame()) return NULL;
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  return vframe::new_vframe(&s, &temp_map, thread());
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}
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vframe* vframe::top() const {
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  vframe* vf = (vframe*) this;
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  while (!vf->is_top()) vf = vf->sender();
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  return vf;
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}
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javaVFrame* vframe::java_sender() const {
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  vframe* f = sender();
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  while (f != NULL) {
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    if (f->is_java_frame()) return javaVFrame::cast(f);
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    f = f->sender();
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  }
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  return NULL;
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}
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// ------------- javaVFrame --------------
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GrowableArray<MonitorInfo*>* javaVFrame::locked_monitors() {
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  assert(SafepointSynchronize::is_at_safepoint() || JavaThread::current() == thread(),
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         "must be at safepoint or it's a java frame of the current thread");
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  GrowableArray<MonitorInfo*>* mons = monitors();
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  GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(mons->length());
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  if (mons->is_empty()) return result;
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  bool found_first_monitor = false;
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  ObjectMonitor *pending_monitor = thread()->current_pending_monitor();
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  ObjectMonitor *waiting_monitor = thread()->current_waiting_monitor();
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  oop pending_obj = (pending_monitor != NULL ? (oop) pending_monitor->object() : (oop) NULL);
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  oop waiting_obj = (waiting_monitor != NULL ? (oop) waiting_monitor->object() : (oop) NULL);
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  for (int index = (mons->length()-1); index >= 0; index--) {
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    MonitorInfo* monitor = mons->at(index);
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    if (monitor->eliminated() && is_compiled_frame()) continue; // skip eliminated monitor
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    oop obj = monitor->owner();
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    if (obj == NULL) continue; // skip unowned monitor
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    //
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    // Skip the monitor that the thread is blocked to enter or waiting on
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    //
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    if (!found_first_monitor && (obj == pending_obj || obj == waiting_obj)) {
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      continue;
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    }
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    found_first_monitor = true;
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    result->append(monitor);
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  }
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  return result;
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}
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static void print_locked_object_class_name(outputStream* st, Handle obj, const char* lock_state) {
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  if (obj.not_null()) {
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    st->print("\t- %s <" INTPTR_FORMAT "> ", lock_state, (address)obj());
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    if (obj->klass() == SystemDictionary::Class_klass()) {
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      Klass* target_klass = java_lang_Class::as_Klass(obj());
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      st->print_cr("(a java.lang.Class for %s)", InstanceKlass::cast(target_klass)->external_name());
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    } else {
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      Klass* k = obj->klass();
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      st->print_cr("(a %s)", k->external_name());
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    }
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  }
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}
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void javaVFrame::print_lock_info_on(outputStream* st, int frame_count) {
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  ResourceMark rm;
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  // If this is the first frame, and java.lang.Object.wait(...) then print out the receiver.
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  if (frame_count == 0) {
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    if (method()->name() == vmSymbols::wait_name() &&
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        method()->method_holder()->name() == vmSymbols::java_lang_Object()) {
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      StackValueCollection* locs = locals();
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      if (!locs->is_empty()) {
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        StackValue* sv = locs->at(0);
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        if (sv->type() == T_OBJECT) {
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          Handle o = locs->at(0)->get_obj();
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          print_locked_object_class_name(st, o, "waiting on");
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        }
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      }
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    } else if (thread()->current_park_blocker() != NULL) {
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      oop obj = thread()->current_park_blocker();
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      Klass* k = obj->klass();
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      st->print_cr("\t- %s <" INTPTR_FORMAT "> (a %s)", "parking to wait for ", (address)obj, k->external_name());
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    }
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  }
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  // Print out all monitors that we have locked or are trying to lock
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  GrowableArray<MonitorInfo*>* mons = monitors();
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  if (!mons->is_empty()) {
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    bool found_first_monitor = false;
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    for (int index = (mons->length()-1); index >= 0; index--) {
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      MonitorInfo* monitor = mons->at(index);
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      if (monitor->eliminated() && is_compiled_frame()) { // Eliminated in compiled code
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        if (monitor->owner_is_scalar_replaced()) {
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          Klass* k = java_lang_Class::as_Klass(monitor->owner_klass());
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          st->print("\t- eliminated <owner is scalar replaced> (a %s)", k->external_name());
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        } else {
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          oop obj = monitor->owner();
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          if (obj != NULL) {
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            print_locked_object_class_name(st, obj, "eliminated");
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          }
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        }
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        continue;
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      }
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      if (monitor->owner() != NULL) {
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        // the monitor is associated with an object, i.e., it is locked
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        // First, assume we have the monitor locked. If we haven't found an
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        // owned monitor before and this is the first frame, then we need to
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        // see if we have completed the lock or we are blocked trying to
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        // acquire it - we can only be blocked if the monitor is inflated
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        const char *lock_state = "locked"; // assume we have the monitor locked
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        if (!found_first_monitor && frame_count == 0) {
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          markOop mark = monitor->owner()->mark();
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          if (mark->has_monitor() &&
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              ( // we have marked ourself as pending on this monitor
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                mark->monitor() == thread()->current_pending_monitor() ||
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                // we are not the owner of this monitor
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                !mark->monitor()->is_entered(thread())
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              )) {
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            lock_state = "waiting to lock";
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          }
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        }
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        found_first_monitor = true;
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        print_locked_object_class_name(st, monitor->owner(), lock_state);
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      }
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    }
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  }
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}
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// ------------- interpretedVFrame --------------
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u_char* interpretedVFrame::bcp() const {
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  return fr().interpreter_frame_bcp();
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}
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void interpretedVFrame::set_bcp(u_char* bcp) {
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  fr().interpreter_frame_set_bcp(bcp);
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}
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intptr_t* interpretedVFrame::locals_addr_at(int offset) const {
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  assert(fr().is_interpreted_frame(), "frame should be an interpreted frame");
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  return fr().interpreter_frame_local_at(offset);
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}
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GrowableArray<MonitorInfo*>* interpretedVFrame::monitors() const {
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  GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(5);
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  for (BasicObjectLock* current = (fr().previous_monitor_in_interpreter_frame(fr().interpreter_frame_monitor_begin()));
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       current >= fr().interpreter_frame_monitor_end();
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       current = fr().previous_monitor_in_interpreter_frame(current)) {
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    result->push(new MonitorInfo(current->obj(), current->lock(), false, false));
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  }
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  return result;
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}
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int interpretedVFrame::bci() const {
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  return method()->bci_from(bcp());
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}
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Method* interpretedVFrame::method() const {
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  return fr().interpreter_frame_method();
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}
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StackValueCollection* interpretedVFrame::locals() const {
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  int length = method()->max_locals();
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  if (method()->is_native()) {
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    // If the method is native, max_locals is not telling the truth.
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    // maxlocals then equals the size of parameters
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    length = method()->size_of_parameters();
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  }
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  StackValueCollection* result = new StackValueCollection(length);
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  // Get oopmap describing oops and int for current bci
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  InterpreterOopMap oop_mask;
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  if (TraceDeoptimization && Verbose) {
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    // need the current JavaThread and not thread()
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    methodHandle m_h(Thread::current(), method());
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    OopMapCache::compute_one_oop_map(m_h, bci(), &oop_mask);
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  } else {
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    method()->mask_for(bci(), &oop_mask);
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  }
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  // handle locals
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  for(int i=0; i < length; i++) {
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    // Find stack location
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    intptr_t *addr = locals_addr_at(i);
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    // Depending on oop/int put it in the right package
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    StackValue *sv;
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    if (oop_mask.is_oop(i)) {
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      // oop value
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      Handle h(*(oop *)addr);
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      sv = new StackValue(h);
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    } else {
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      // integer
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      sv = new StackValue(*addr);
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    }
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    assert(sv != NULL, "sanity check");
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    result->add(sv);
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  }
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  return result;
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}
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void interpretedVFrame::set_locals(StackValueCollection* values) const {
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  if (values == NULL || values->size() == 0) return;
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  int length = method()->max_locals();
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  if (method()->is_native()) {
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    // If the method is native, max_locals is not telling the truth.
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    // maxlocals then equals the size of parameters
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    length = method()->size_of_parameters();
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  }
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  assert(length == values->size(), "Mismatch between actual stack format and supplied data");
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  // handle locals
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  for (int i = 0; i < length; i++) {
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    // Find stack location
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    intptr_t *addr = locals_addr_at(i);
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    // Depending on oop/int put it in the right package
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    StackValue *sv = values->at(i);
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    assert(sv != NULL, "sanity check");
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    if (sv->type() == T_OBJECT) {
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      *(oop *) addr = (sv->get_obj())();
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    } else {                   // integer
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      *addr = sv->get_int();
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    }
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  }
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}
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StackValueCollection* interpretedVFrame::expressions() const {
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  InterpreterOopMap oop_mask;
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  if (!method()->is_native()) {
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   337
    // Get oopmap describing oops and int for current bci
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    if (TraceDeoptimization && Verbose) {
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      // need the current JavaThread and not thread()
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      methodHandle m_h(Thread::current(), method());
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      OopMapCache::compute_one_oop_map(m_h, bci(), &oop_mask);
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    } else {
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      method()->mask_for(bci(), &oop_mask);
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    }
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  }
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  // If the bci is a call instruction, i.e. any of the invoke* instructions,
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  // the InterpreterOopMap does not include expression/operand stack liveness
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  // info in the oop_mask/bit_mask. This can lead to a discrepancy of what
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  // is actually on the expression stack compared to what is given by the
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mgronlun
parents: 22234
diff changeset
   351
  // oop_map. We need to use the length reported in the oop_map.
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   352
  int length = oop_mask.expression_stack_size();
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   353
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   354
  assert(fr().interpreter_frame_expression_stack_size() >= length,
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   355
    "error in expression stack!");
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   356
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   357
  StackValueCollection* result = new StackValueCollection(length);
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   358
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   359
  if (0 == length) {
f144d430b1cf 8038624: interpretedVFrame::expressions() must respect InterpreterOopMap for liveness
mgronlun
parents: 22234
diff changeset
   360
    return result;
1
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parents:
diff changeset
   361
  }
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parents:
diff changeset
   362
489c9b5090e2 Initial load
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parents:
diff changeset
   363
  int nof_locals = method()->max_locals();
489c9b5090e2 Initial load
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parents:
diff changeset
   364
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   365
  // handle expressions
f2e8cc8c12ea 6943304: remove tagged stack interpreter
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parents: 4581
diff changeset
   366
  for(int i=0; i < length; i++) {
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   367
    // Find stack location
f2e8cc8c12ea 6943304: remove tagged stack interpreter
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parents: 4581
diff changeset
   368
    intptr_t *addr = fr().interpreter_frame_expression_stack_at(i);
1
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parents:
diff changeset
   369
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   370
    // Depending on oop/int put it in the right package
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   371
    StackValue *sv;
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   372
    if (oop_mask.is_oop(i + nof_locals)) {
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   373
      // oop value
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   374
      Handle h(*(oop *)addr);
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   375
      sv = new StackValue(h);
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   376
    } else {
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   377
      // integer
f2e8cc8c12ea 6943304: remove tagged stack interpreter
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parents: 4581
diff changeset
   378
      sv = new StackValue(*addr);
1
489c9b5090e2 Initial load
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diff changeset
   379
    }
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   380
    assert(sv != NULL, "sanity check");
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4581
diff changeset
   381
    result->add(sv);
1
489c9b5090e2 Initial load
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parents:
diff changeset
   382
  }
489c9b5090e2 Initial load
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diff changeset
   383
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
}
489c9b5090e2 Initial load
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parents:
diff changeset
   385
489c9b5090e2 Initial load
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parents:
diff changeset
   386
489c9b5090e2 Initial load
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parents:
diff changeset
   387
// ------------- cChunk --------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
489c9b5090e2 Initial load
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parents:
diff changeset
   389
entryVFrame::entryVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
: externalVFrame(fr, reg_map, thread) {}
489c9b5090e2 Initial load
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parents:
diff changeset
   391
489c9b5090e2 Initial load
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parents:
diff changeset
   392
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
void vframeStreamCommon::found_bad_method_frame() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
  // 6379830 Cut point for an assertion that occasionally fires when
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
  // we are using the performance analyzer.
489c9b5090e2 Initial load
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parents:
diff changeset
   396
  // Disable this assert when testing the analyzer with fastdebug.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
  // -XX:SuppressErrorAt=vframe.cpp:XXX (XXX=following line number)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
  assert(false, "invalid bci or invalid scope desc");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
// top-frame will be skipped
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
vframeStream::vframeStream(JavaThread* thread, frame top_frame,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
  bool stop_at_java_call_stub) : vframeStreamCommon(thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
  _stop_at_java_call_stub = stop_at_java_call_stub;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
  // skip top frame, as it may not be at safepoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
  _frame  = top_frame.sender(&_reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  while (!fill_from_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
    _frame = _frame.sender(&_reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
489c9b5090e2 Initial load
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parents:
diff changeset
   413
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
// Step back n frames, skip any pseudo frames in between.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
// This function is used in Class.forName, Class.newInstance, Method.Invoke,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
// AccessController.doPrivileged.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
void vframeStreamCommon::security_get_caller_frame(int depth) {
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   418
  assert(depth >= 0, err_msg("invalid depth: %d", depth));
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   419
  for (int n = 0; !at_end(); security_next()) {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   420
    if (!method()->is_ignored_by_security_stack_walk()) {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   421
      if (n == depth) {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   422
        // We have reached the desired depth; return.
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   423
        return;
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   424
      }
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   425
      n++;  // this is a non-skipped frame; count it against the depth
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   426
    }
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   427
  }
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   428
  // NOTE: At this point there were not enough frames on the stack
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   429
  // to walk to depth.  Callers of this method have to check for at_end.
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   430
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   432
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   433
void vframeStreamCommon::security_next() {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   434
  if (method()->is_prefixed_native()) {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   435
    skip_prefixed_method_and_wrappers();  // calls next()
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   436
  } else {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 14488
diff changeset
   437
    next();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
void vframeStreamCommon::skip_prefixed_method_and_wrappers() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  HandleMark hm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
  int    method_prefix_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  char** method_prefixes = JvmtiExport::get_all_native_method_prefixes(&method_prefix_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
  KlassHandle prefixed_klass(method()->method_holder());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  const char* prefixed_name = method()->name()->as_C_string();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
  size_t prefixed_name_len = strlen(prefixed_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
  int prefix_index = method_prefix_count-1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
  while (!at_end()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
    next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
    if (method()->method_holder() != prefixed_klass()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
      break; // classes don't match, can't be a wrapper
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
    const char* name = method()->name()->as_C_string();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
    size_t name_len = strlen(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
    size_t prefix_len = prefixed_name_len - name_len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
    if (prefix_len <= 0 || strcmp(name, prefixed_name + prefix_len) != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
      break; // prefixed name isn't prefixed version of method name, can't be a wrapper
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
    for (; prefix_index >= 0; --prefix_index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
      const char* possible_prefix = method_prefixes[prefix_index];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
      size_t possible_prefix_len = strlen(possible_prefix);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
      if (possible_prefix_len == prefix_len &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
          strncmp(possible_prefix, prefixed_name, prefix_len) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
        break; // matching prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
    if (prefix_index < 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
      break; // didn't find the prefix, can't be a wrapper
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
    prefixed_name = name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
    prefixed_name_len = name_len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
void vframeStreamCommon::skip_reflection_related_frames() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  while (!at_end() &&
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 13728
diff changeset
   483
          (method()->method_holder()->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass()) ||
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24938
diff changeset
   484
           method()->method_holder()->is_subclass_of(SystemDictionary::reflect_ConstructorAccessorImpl_klass()))) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
    next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
void vframe::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
  if (WizardMode) _fr.print_value_on(tty,NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
void vframe::print_value() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  ((vframe*)this)->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
void entryVFrame::print_value() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
  ((entryVFrame*)this)->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
void entryVFrame::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
  vframe::print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  tty->print_cr("C Chunk inbetween Java");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  tty->print_cr("C     link " INTPTR_FORMAT, _fr.link());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
// ------------- javaVFrame --------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
static void print_stack_values(const char* title, StackValueCollection* values) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
  if (values->is_empty()) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  tty->print_cr("\t%s:", title);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  values->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
void javaVFrame::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
  vframe::print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  tty->print("\t");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  method()->print_value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  tty->print_cr("\tbci:    %d", bci());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
  print_stack_values("locals",      locals());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
  print_stack_values("expressions", expressions());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
  GrowableArray<MonitorInfo*>* list = monitors();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  if (list->is_empty()) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  tty->print_cr("\tmonitor list:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
  for (int index = (list->length()-1); index >= 0; index--) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
    MonitorInfo* monitor = list->at(index);
3171
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   537
    tty->print("\t  obj\t");
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   538
    if (monitor->owner_is_scalar_replaced()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   539
      Klass* k = java_lang_Class::as_Klass(monitor->owner_klass());
3171
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   540
      tty->print("( is scalar replaced %s)", k->external_name());
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   541
    } else if (monitor->owner() == NULL) {
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   542
      tty->print("( null )");
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   543
    } else {
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   544
      monitor->owner()->print_value();
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   545
      tty->print("(" INTPTR_FORMAT ")", (address)monitor->owner());
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   546
    }
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   547
    if (monitor->eliminated() && is_compiled_frame())
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 2880
diff changeset
   548
      tty->print(" ( lock is eliminated )");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
    tty->print("\t  ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
    monitor->lock()->print_on(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
void javaVFrame::print_value() const {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   558
  Method*    m = method();
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 13728
diff changeset
   559
  InstanceKlass*     k = m->method_holder();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  tty->print_cr("frame( sp=" INTPTR_FORMAT ", unextended_sp=" INTPTR_FORMAT ", fp=" INTPTR_FORMAT ", pc=" INTPTR_FORMAT ")",
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
                _fr.sp(),  _fr.unextended_sp(), _fr.fp(), _fr.pc());
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14391
diff changeset
   562
  tty->print("%s.%s", k->internal_name(), m->name()->as_C_string());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  if (!m->is_native()) {
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 13728
diff changeset
   565
    Symbol*  source_name = k->source_file_name();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
    int        line_number = m->line_number_from_bci(bci());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
    if (source_name != NULL && (line_number != -1)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
      tty->print("(%s:%d)", source_name->as_C_string(), line_number);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
    tty->print("(Native Method)");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  // Check frame size and print warning if it looks suspiciously large
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  if (fr().sp() != NULL) {
2880
c2974244a496 6848466: frame::frame_size() assertion failure with -XX:+DebugDeoptimization
cfang
parents: 670
diff changeset
   575
    RegisterMap map = *register_map();
c2974244a496 6848466: frame::frame_size() assertion failure with -XX:+DebugDeoptimization
cfang
parents: 670
diff changeset
   576
    uint size = fr().frame_size(&map);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
#ifdef _LP64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
    if (size > 8*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
    if (size > 4*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
bool javaVFrame::structural_compare(javaVFrame* other) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
  // Check static part
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
  if (method() != other->method()) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
  if (bci()    != other->bci())    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
  // Check locals
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  StackValueCollection *locs = locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
  StackValueCollection *other_locs = other->locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  assert(locs->size() == other_locs->size(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
  int i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  for(i = 0; i < locs->size(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
    // it might happen the compiler reports a conflict and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
    // the interpreter reports a bogus int.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    if (       is_compiled_frame() &&       locs->at(i)->type() == T_CONFLICT) continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
    if (other->is_compiled_frame() && other_locs->at(i)->type() == T_CONFLICT) continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    if (!locs->at(i)->equal(other_locs->at(i)))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  // Check expressions
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
  StackValueCollection* exprs = expressions();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  StackValueCollection* other_exprs = other->expressions();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  assert(exprs->size() == other_exprs->size(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
  for(i = 0; i < exprs->size(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
    if (!exprs->at(i)->equal(other_exprs->at(i)))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
void javaVFrame::print_activation(int index) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  // frame number and method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
  tty->print("%2d - ", index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  ((vframe*)this)->print_value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  if (WizardMode) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
    ((vframe*)this)->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
void javaVFrame::verify() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
void interpretedVFrame::verify() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
// ------------- externalVFrame --------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
void externalVFrame::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
  _fr.print_value_on(tty,NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
void externalVFrame::print_value() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
  ((vframe*)this)->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
#endif // PRODUCT