hotspot/src/share/vm/runtime/rframe.cpp
author jmasa
Sun, 02 Mar 2008 16:10:12 -0800
changeset 186 32e6c95f8d9b
parent 1 489c9b5090e2
child 5547 f4b087cbb361
permissions -rw-r--r--
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO Summary: Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set. Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted. Reviewed-by: iveresov, apetrusenko, pbk, ysr
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
489c9b5090e2 Initial load
duke
parents:
diff changeset
     2
 * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    19
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    20
 * CA 95054 USA or visit www.sun.com if you need additional information or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    21
 * have any questions.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
489c9b5090e2 Initial load
duke
parents:
diff changeset
    25
# include "incls/_precompiled.incl"
489c9b5090e2 Initial load
duke
parents:
diff changeset
    26
489c9b5090e2 Initial load
duke
parents:
diff changeset
    27
#include "incls/_rframe.cpp.incl"
489c9b5090e2 Initial load
duke
parents:
diff changeset
    28
489c9b5090e2 Initial load
duke
parents:
diff changeset
    29
static RFrame*const  noCaller    = (RFrame*) 0x1;               // no caller (i.e., initial frame)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    30
static RFrame*const  noCallerYet = (RFrame*) 0x0;               // caller not yet computed
489c9b5090e2 Initial load
duke
parents:
diff changeset
    31
489c9b5090e2 Initial load
duke
parents:
diff changeset
    32
RFrame::RFrame(frame fr, JavaThread* thread, RFrame*const callee) :
489c9b5090e2 Initial load
duke
parents:
diff changeset
    33
  _fr(fr), _thread(thread), _callee(callee), _num(callee ? callee->num() + 1 : 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    34
  _caller = (RFrame*)noCallerYet;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    35
  _invocations = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    36
  _distance = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    37
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    38
489c9b5090e2 Initial load
duke
parents:
diff changeset
    39
void RFrame::set_distance(int d) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    40
  assert(is_compiled() || d >= 0, "should be positive");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
  _distance = d;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, RFrame*const callee)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
: RFrame(fr, thread, callee) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
  RegisterMap map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    47
  _vf     = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread));
489c9b5090e2 Initial load
duke
parents:
diff changeset
    48
  _method = methodHandle(thread, _vf->method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
    49
  assert(   _vf->is_interpreted_frame(), "must be interpreted");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
  init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, methodHandle m)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
: RFrame(fr, thread, NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    55
  RegisterMap map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    56
  _vf     = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread));
489c9b5090e2 Initial load
duke
parents:
diff changeset
    57
  _method = m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    58
489c9b5090e2 Initial load
duke
parents:
diff changeset
    59
  assert(   _vf->is_interpreted_frame(),  "must be interpreted");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    60
  init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    61
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    62
489c9b5090e2 Initial load
duke
parents:
diff changeset
    63
CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread, RFrame*const  callee)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    64
: RFrame(fr, thread, callee) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    65
  init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    66
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    67
489c9b5090e2 Initial load
duke
parents:
diff changeset
    68
CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    69
: RFrame(fr, thread, NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    70
  init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
DeoptimizedRFrame::DeoptimizedRFrame(frame fr, JavaThread* thread, RFrame*const  callee)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
: InterpretedRFrame(fr, thread, callee) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
489c9b5090e2 Initial load
duke
parents:
diff changeset
    76
RFrame* RFrame::new_RFrame(frame fr, JavaThread* thread, RFrame*const  callee) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
  RFrame* rf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
  int dist = callee ? callee->distance() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
  if (fr.is_interpreted_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
    rf = new InterpretedRFrame(fr, thread, callee);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
    dist++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
  } else if (fr.is_compiled_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
    // Even deopted frames look compiled because the deopt
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
    // is invisible until it happens.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
    rf = new CompiledRFrame(fr, thread, callee);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
    assert(false, "Unhandled frame type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    89
  rf->set_distance(dist);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    90
  rf->init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
    91
  return rf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    92
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    93
489c9b5090e2 Initial load
duke
parents:
diff changeset
    94
RFrame* RFrame::caller() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    95
  if (_caller != noCallerYet) return (_caller == noCaller) ? NULL : _caller;    // already computed caller
489c9b5090e2 Initial load
duke
parents:
diff changeset
    96
489c9b5090e2 Initial load
duke
parents:
diff changeset
    97
  // caller not yet computed; do it now
489c9b5090e2 Initial load
duke
parents:
diff changeset
    98
  if (_fr.is_first_java_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    99
    _caller = (RFrame*)noCaller;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   100
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   101
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   102
489c9b5090e2 Initial load
duke
parents:
diff changeset
   103
  RegisterMap map(_thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   104
  frame sender = _fr.real_sender(&map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   105
  if (sender.is_java_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   106
    _caller = new_RFrame(sender, thread(), this);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   107
    return _caller;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   108
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   109
489c9b5090e2 Initial load
duke
parents:
diff changeset
   110
  // Real caller is not java related
489c9b5090e2 Initial load
duke
parents:
diff changeset
   111
  _caller = (RFrame*)noCaller;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   112
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   113
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   114
489c9b5090e2 Initial load
duke
parents:
diff changeset
   115
int InterpretedRFrame::cost() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   116
  return _method->code_size();    // fix this
489c9b5090e2 Initial load
duke
parents:
diff changeset
   117
  //return _method->estimated_inline_cost(_receiverKlass);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   118
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   119
489c9b5090e2 Initial load
duke
parents:
diff changeset
   120
int CompiledRFrame::cost() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   121
  nmethod* nm = top_method()->code();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   122
  if (nm != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   123
    return nm->code_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   124
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   125
    return top_method()->code_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   126
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   127
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   128
489c9b5090e2 Initial load
duke
parents:
diff changeset
   129
void CompiledRFrame::init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   130
  RegisterMap map(thread(), false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   131
  vframe* vf = vframe::new_vframe(&_fr, &map, thread());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   132
  assert(vf->is_compiled_frame(), "must be compiled");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   133
  _nm = compiledVFrame::cast(vf)->code();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   134
  vf = vf->top();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   135
  _vf = javaVFrame::cast(vf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   136
  _method = methodHandle(thread(), CodeCache::find_nmethod(_fr.pc())->method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   137
  assert(_method(), "should have found a method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   138
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   139
  _invocations = _method->compiled_invocation_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   140
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   141
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   142
489c9b5090e2 Initial load
duke
parents:
diff changeset
   143
void InterpretedRFrame::init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   144
  _invocations = _method->invocation_count() + _method->backedge_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   145
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   146
489c9b5090e2 Initial load
duke
parents:
diff changeset
   147
void RFrame::print(const char* kind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   148
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   149
#ifdef COMPILER2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   150
  int cnt = top_method()->interpreter_invocation_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   151
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   152
  int cnt = top_method()->invocation_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   153
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   154
  tty->print("%3d %s ", _num, is_interpreted() ? "I" : "C");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   155
  top_method()->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   156
  tty->print_cr(": inv=%5d(%d) cst=%4d", _invocations, cnt, cost());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   157
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   158
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   159
489c9b5090e2 Initial load
duke
parents:
diff changeset
   160
void CompiledRFrame::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   161
  RFrame::print("comp");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   162
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   163
489c9b5090e2 Initial load
duke
parents:
diff changeset
   164
void InterpretedRFrame::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   165
  RFrame::print("int.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   166
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   167
489c9b5090e2 Initial load
duke
parents:
diff changeset
   168
void DeoptimizedRFrame::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   169
  RFrame::print("deopt.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   170
}