hotspot/src/cpu/x86/vm/frame_x86.cpp
author coleenp
Sat, 01 Sep 2012 13:25:18 -0400
changeset 13728 882756847a04
parent 13391 30245956af37
child 14579 7f6ce6e3dd80
permissions -rw-r--r--
6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
11486
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
     2
 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
1
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
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5426
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5426
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5426
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    25
#include "precompiled.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    26
#include "interpreter/interpreter.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    27
#include "memory/resourceArea.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    28
#include "oops/markOop.hpp"
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
    29
#include "oops/method.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    30
#include "oops/oop.inline.hpp"
11632
e369165faf7a 7141059: 7116795 broke pure c2 builds
iveresov
parents: 11571
diff changeset
    31
#include "prims/methodHandles.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    32
#include "runtime/frame.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    33
#include "runtime/handles.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    34
#include "runtime/javaCalls.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    35
#include "runtime/monitorChunk.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    36
#include "runtime/signature.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    37
#include "runtime/stubCodeGenerator.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    38
#include "runtime/stubRoutines.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    39
#include "vmreg_x86.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    40
#ifdef COMPILER1
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    41
#include "c1/c1_Runtime1.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    42
#include "runtime/vframeArray.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6418
diff changeset
    43
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
void RegisterMap::check_location_valid() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    47
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
    48
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
    49
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
// Profiling/safepoint support
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
bool frame::safe_for_sender(JavaThread *thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
  address   sp = (address)_sp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    55
  address   fp = (address)_fp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    56
  address   unextended_sp = (address)_unextended_sp;
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    57
  // sp must be within the stack
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    58
  bool sp_safe = (sp <= thread->stack_base()) &&
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    59
                 (sp >= thread->stack_base() - thread->stack_size());
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    60
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    61
  if (!sp_safe) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    62
    return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    63
  }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    64
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    65
  // unextended sp must be within the stack and above or equal sp
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    66
  bool unextended_sp_safe = (unextended_sp <= thread->stack_base()) &&
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    67
                            (unextended_sp >= sp);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    68
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    69
  if (!unextended_sp_safe) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    70
    return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    71
  }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    72
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    73
  // an fp must be within the stack and above (but not equal) sp
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    74
  bool fp_safe = (fp <= thread->stack_base()) && (fp > sp);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    75
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    76
  // We know sp/unextended_sp are safe only fp is questionable here
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    77
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    78
  // If the current frame is known to the code cache then we can attempt to
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    79
  // to construct the sender and do some validation of it. This goes a long way
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    80
  // toward eliminating issues when we get in frame construction code
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    81
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    82
  if (_cb != NULL ) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    83
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    84
    // First check if frame is complete and tester is reliable
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
    // Unfortunately we can only check frame complete for runtime stubs and nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
    // other generic buffer blobs are more problematic so we just assume they are
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
    // ok. adapter blobs never have a frame complete and are never ok.
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    88
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    89
    if (!_cb->is_frame_complete_at(_pc)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    90
      if (_cb->is_nmethod() || _cb->is_adapter_blob() || _cb->is_runtime_stub()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    91
        return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    92
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    93
    }
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    94
    // Entry frame checks
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    95
    if (is_entry_frame()) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    96
      // an entry frame must have a valid fp.
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    97
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    98
      if (!fp_safe) return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
    99
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   100
      // Validate the JavaCallWrapper an entry frame must have
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   101
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   102
      address jcw = (address)entry_frame_call_wrapper();
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   103
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   104
      bool jcw_safe = (jcw <= thread->stack_base()) && ( jcw > fp);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   105
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   106
      return jcw_safe;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   107
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   108
    }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   109
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   110
    intptr_t* sender_sp = NULL;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   111
    address   sender_pc = NULL;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   112
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   113
    if (is_interpreted_frame()) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   114
      // fp must be safe
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   115
      if (!fp_safe) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   116
        return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   117
      }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   118
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   119
      sender_pc = (address) this->fp()[return_addr_offset];
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   120
      sender_sp = (intptr_t*) addr_at(sender_sp_offset);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   121
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   122
    } else {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   123
      // must be some sort of compiled/runtime frame
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   124
      // fp does not have to be safe (although it could be check for c1?)
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   125
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   126
      sender_sp = _unextended_sp + _cb->frame_size();
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   127
      // On Intel the return_address is always the word on the stack
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   128
      sender_pc = (address) *(sender_sp-1);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   129
    }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   130
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   131
    // We must always be able to find a recognizable pc
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   132
    CodeBlob* sender_blob = CodeCache::find_blob_unsafe(sender_pc);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   133
    if (sender_pc == NULL ||  sender_blob == NULL) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   134
      return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   135
    }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   136
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   137
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   138
    // If the potential sender is the interpreter then we can do some more checking
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   139
    if (Interpreter::contains(sender_pc)) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   140
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   141
      // ebp is always saved in a recognizable place in any code we generate. However
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   142
      // only if the sender is interpreted/call_stub (c1 too?) are we certain that the saved ebp
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   143
      // is really a frame pointer.
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   144
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   145
      intptr_t *saved_fp = (intptr_t*)*(sender_sp - frame::sender_sp_offset);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   146
      bool saved_fp_safe = ((address)saved_fp <= thread->stack_base()) && (saved_fp > sender_sp);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   147
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   148
      if (!saved_fp_safe) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   149
        return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   150
      }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   151
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   152
      // construct the potential sender
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   153
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   154
      frame sender(sender_sp, saved_fp, sender_pc);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   155
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   156
      return sender.is_interpreted_frame_valid(thread);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   157
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   158
    }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   159
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   160
    // Could just be some random pointer within the codeBlob
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   161
    if (!sender_blob->code_contains(sender_pc)) {
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   162
      return false;
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   163
    }
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   164
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   165
    // We should never be able to see an adapter if the current frame is something from code cache
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   166
    if (sender_blob->is_adapter_blob()) {
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   167
      return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   168
    }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   169
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   170
    // Could be the call_stub
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   171
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   172
    if (StubRoutines::returns_to_call_stub(sender_pc)) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   173
      intptr_t *saved_fp = (intptr_t*)*(sender_sp - frame::sender_sp_offset);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   174
      bool saved_fp_safe = ((address)saved_fp <= thread->stack_base()) && (saved_fp > sender_sp);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   175
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   176
      if (!saved_fp_safe) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   177
        return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   178
      }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   179
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   180
      // construct the potential sender
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   181
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   182
      frame sender(sender_sp, saved_fp, sender_pc);
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   183
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   184
      // Validate the JavaCallWrapper an entry frame must have
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   185
      address jcw = (address)sender.entry_frame_call_wrapper();
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   186
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   187
      bool jcw_safe = (jcw <= thread->stack_base()) && ( jcw > (address)sender.fp());
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   188
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   189
      return jcw_safe;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   190
    }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   191
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   192
    // If the frame size is 0 something is bad because every nmethod has a non-zero frame size
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   193
    // because the return address counts against the callee's frame.
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   194
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   195
    if (sender_blob->frame_size() == 0) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   196
      assert(!sender_blob->is_nmethod(), "should count return address at least");
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   197
      return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   198
    }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   199
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   200
    // We should never be able to see anything here except an nmethod. If something in the
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   201
    // code cache (current frame) is called by an entity within the code cache that entity
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   202
    // should not be anything but the call stub (already covered), the interpreter (already covered)
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   203
    // or an nmethod.
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   204
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   205
    assert(sender_blob->is_nmethod(), "Impossible call chain");
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   206
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   207
    // Could put some more validation for the potential non-interpreted sender
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   208
    // frame we'd create by calling sender if I could think of any. Wait for next crash in forte...
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   209
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   210
    // One idea is seeing if the sender_pc we have is one that we'd expect to call to current cb
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   211
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   212
    // We've validated the potential sender that would be created
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   213
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   214
  }
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   215
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   216
  // Must be native-compiled frame. Since sender will try and use fp to find
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   217
  // linkages it must be safe
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   218
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   219
  if (!fp_safe) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   220
    return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   221
  }
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   222
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   223
  // Will the pc we fetch be non-zero (which we'll find at the oldest frame)
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   224
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   225
  if ( (address) this->fp()[return_addr_offset] == NULL) return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   226
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   227
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   228
  // could try and do some more potential verification of native frame if we could think of some...
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   229
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   230
  return true;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   231
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   232
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   233
489c9b5090e2 Initial load
duke
parents:
diff changeset
   234
489c9b5090e2 Initial load
duke
parents:
diff changeset
   235
void frame::patch_pc(Thread* thread, address pc) {
10733
49cc61508e86 7081938: JSR292: assert(magic_number_2() == MAGIC_NUMBER_2) failed
twisti
parents: 10539
diff changeset
   236
  address* pc_addr = &(((address*) sp())[-1]);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   237
  if (TracePcPatching) {
10980
8b23df12c7f6 7106944: assert(_pc == *pc_addr) failed may be too strong
twisti
parents: 10733
diff changeset
   238
    tty->print_cr("patch_pc at address " INTPTR_FORMAT " [" INTPTR_FORMAT " -> " INTPTR_FORMAT "]",
10733
49cc61508e86 7081938: JSR292: assert(magic_number_2() == MAGIC_NUMBER_2) failed
twisti
parents: 10539
diff changeset
   239
                  pc_addr, *pc_addr, pc);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   240
  }
10980
8b23df12c7f6 7106944: assert(_pc == *pc_addr) failed may be too strong
twisti
parents: 10733
diff changeset
   241
  // Either the return address is the original one or we are going to
8b23df12c7f6 7106944: assert(_pc == *pc_addr) failed may be too strong
twisti
parents: 10733
diff changeset
   242
  // patch in the same address that's already there.
8b23df12c7f6 7106944: assert(_pc == *pc_addr) failed may be too strong
twisti
parents: 10733
diff changeset
   243
  assert(_pc == *pc_addr || pc == *pc_addr, "must be");
10733
49cc61508e86 7081938: JSR292: assert(magic_number_2() == MAGIC_NUMBER_2) failed
twisti
parents: 10539
diff changeset
   244
  *pc_addr = pc;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   245
  _cb = CodeCache::find_blob(pc);
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   246
  address original_pc = nmethod::get_deopt_original_pc(this);
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   247
  if (original_pc != NULL) {
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   248
    assert(original_pc == _pc, "expected original PC to be stored before patching");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   249
    _deopt_state = is_deoptimized;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   250
    // leave _pc as is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   251
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   252
    _deopt_state = not_deoptimized;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   253
    _pc = pc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   254
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   255
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   256
489c9b5090e2 Initial load
duke
parents:
diff changeset
   257
bool frame::is_interpreted_frame() const  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   258
  return Interpreter::contains(pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   259
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   260
2880
c2974244a496 6848466: frame::frame_size() assertion failure with -XX:+DebugDeoptimization
cfang
parents: 1066
diff changeset
   261
int frame::frame_size(RegisterMap* map) const {
c2974244a496 6848466: frame::frame_size() assertion failure with -XX:+DebugDeoptimization
cfang
parents: 1066
diff changeset
   262
  frame sender = this->sender(map);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   263
  return sender.sp() - sp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   264
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   265
489c9b5090e2 Initial load
duke
parents:
diff changeset
   266
intptr_t* frame::entry_frame_argument_at(int offset) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   267
  // convert offset to index to deal with tsi
489c9b5090e2 Initial load
duke
parents:
diff changeset
   268
  int index = (Interpreter::expr_offset_in_bytes(offset)/wordSize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   269
  // Entry frame's arguments are always in relation to unextended_sp()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   270
  return &unextended_sp()[index];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   271
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   272
489c9b5090e2 Initial load
duke
parents:
diff changeset
   273
// sender_sp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   274
#ifdef CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   275
intptr_t* frame::interpreter_frame_sender_sp() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   276
  assert(is_interpreted_frame(), "interpreted frame expected");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   277
  // QQQ why does this specialize method exist if frame::sender_sp() does same thing?
489c9b5090e2 Initial load
duke
parents:
diff changeset
   278
  // seems odd and if we always know interpreted vs. non then sender_sp() is really
489c9b5090e2 Initial load
duke
parents:
diff changeset
   279
  // doing too much work.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   280
  return get_interpreterState()->sender_sp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   281
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   282
489c9b5090e2 Initial load
duke
parents:
diff changeset
   283
// monitor elements
489c9b5090e2 Initial load
duke
parents:
diff changeset
   284
489c9b5090e2 Initial load
duke
parents:
diff changeset
   285
BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   286
  return get_interpreterState()->monitor_base();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   287
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   288
489c9b5090e2 Initial load
duke
parents:
diff changeset
   289
BasicObjectLock* frame::interpreter_frame_monitor_end() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   290
  return (BasicObjectLock*) get_interpreterState()->stack_base();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   291
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   292
489c9b5090e2 Initial load
duke
parents:
diff changeset
   293
#else // CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   294
489c9b5090e2 Initial load
duke
parents:
diff changeset
   295
intptr_t* frame::interpreter_frame_sender_sp() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   296
  assert(is_interpreted_frame(), "interpreted frame expected");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   297
  return (intptr_t*) at(interpreter_frame_sender_sp_offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   298
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   299
489c9b5090e2 Initial load
duke
parents:
diff changeset
   300
void frame::set_interpreter_frame_sender_sp(intptr_t* sender_sp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   301
  assert(is_interpreted_frame(), "interpreted frame expected");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   302
  ptr_at_put(interpreter_frame_sender_sp_offset, (intptr_t) sender_sp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   303
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   304
489c9b5090e2 Initial load
duke
parents:
diff changeset
   305
489c9b5090e2 Initial load
duke
parents:
diff changeset
   306
// monitor elements
489c9b5090e2 Initial load
duke
parents:
diff changeset
   307
489c9b5090e2 Initial load
duke
parents:
diff changeset
   308
BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   309
  return (BasicObjectLock*) addr_at(interpreter_frame_monitor_block_bottom_offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   310
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   311
489c9b5090e2 Initial load
duke
parents:
diff changeset
   312
BasicObjectLock* frame::interpreter_frame_monitor_end() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   313
  BasicObjectLock* result = (BasicObjectLock*) *addr_at(interpreter_frame_monitor_block_top_offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   314
  // make sure the pointer points inside the frame
5401
30bda607cb67 6946056: assert((intptr_t) sp()<=(intptr_t) result,"result must>=than stack pointer"), frame_x86.cpp:295
johnc
parents: 4752
diff changeset
   315
  assert(sp() <= (intptr_t*) result, "monitor end should be above the stack pointer");
30bda607cb67 6946056: assert((intptr_t) sp()<=(intptr_t) result,"result must>=than stack pointer"), frame_x86.cpp:295
johnc
parents: 4752
diff changeset
   316
  assert((intptr_t*) result < fp(),  "monitor end should be strictly below the frame pointer");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   317
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   318
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   319
489c9b5090e2 Initial load
duke
parents:
diff changeset
   320
void frame::interpreter_frame_set_monitor_end(BasicObjectLock* value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   321
  *((BasicObjectLock**)addr_at(interpreter_frame_monitor_block_top_offset)) = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   322
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   323
489c9b5090e2 Initial load
duke
parents:
diff changeset
   324
// Used by template based interpreter deoptimization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
void frame::interpreter_frame_set_last_sp(intptr_t* sp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
    *((intptr_t**)addr_at(interpreter_frame_last_sp_offset)) = sp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   327
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
#endif // CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   329
489c9b5090e2 Initial load
duke
parents:
diff changeset
   330
frame frame::sender_for_entry_frame(RegisterMap* map) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
  assert(map != NULL, "map must be set");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   332
  // Java frame called from C; skip all C frames and return top C
489c9b5090e2 Initial load
duke
parents:
diff changeset
   333
  // frame of that chunk as the sender
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
  JavaFrameAnchor* jfa = entry_frame_call_wrapper()->anchor();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
  assert(!entry_frame_is_first(), "next Java fp must be non zero");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
  assert(jfa->last_Java_sp() > sp(), "must be above this frame on stack");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
  map->clear();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
  assert(map->include_argument_oops(), "should be set by clear");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
  if (jfa->last_Java_pc() != NULL ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   340
    frame fr(jfa->last_Java_sp(), jfa->last_Java_fp(), jfa->last_Java_pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   341
    return fr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
  frame fr(jfa->last_Java_sp(), jfa->last_Java_fp());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
  return fr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   346
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   347
//------------------------------------------------------------------------------
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   348
// frame::verify_deopt_original_pc
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   349
//
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   350
// Verifies the calculated original PC of a deoptimization PC for the
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   351
// given unextended SP.  The unextended SP might also be the saved SP
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   352
// for MethodHandle call sites.
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   353
#if ASSERT
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   354
void frame::verify_deopt_original_pc(nmethod* nm, intptr_t* unextended_sp, bool is_method_handle_return) {
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   355
  frame fr;
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   356
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   357
  // This is ugly but it's better than to change {get,set}_original_pc
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   358
  // to take an SP value as argument.  And it's only a debugging
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   359
  // method anyway.
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   360
  fr._unextended_sp = unextended_sp;
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   361
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   362
  address original_pc = nm->get_original_pc(&fr);
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6176
diff changeset
   363
  assert(nm->insts_contains(original_pc), "original PC must be in nmethod");
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   364
  assert(nm->is_method_handle_return(original_pc) == is_method_handle_return, "must be");
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   365
}
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   366
#endif
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   367
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   368
//------------------------------------------------------------------------------
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   369
// frame::adjust_unextended_sp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   370
void frame::adjust_unextended_sp() {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   371
  // If we are returning to a compiled MethodHandle call site, the
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   372
  // saved_fp will in fact be a saved value of the unextended SP.  The
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   373
  // simplest way to tell whether we are returning to such a call site
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   374
  // is as follows:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   375
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   376
  nmethod* sender_nm = (_cb == NULL) ? NULL : _cb->as_nmethod_or_null();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   377
  if (sender_nm != NULL) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   378
    // If the sender PC is a deoptimization point, get the original
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   379
    // PC.  For MethodHandle call site the unextended_sp is stored in
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   380
    // saved_fp.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   381
    if (sender_nm->is_deopt_mh_entry(_pc)) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   382
      DEBUG_ONLY(verify_deopt_mh_original_pc(sender_nm, _fp));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   383
      _unextended_sp = _fp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   384
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   385
    else if (sender_nm->is_deopt_entry(_pc)) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   386
      DEBUG_ONLY(verify_deopt_original_pc(sender_nm, _unextended_sp));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   387
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   388
    else if (sender_nm->is_method_handle_return(_pc)) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   389
      _unextended_sp = _fp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   390
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   391
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   392
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   393
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   394
//------------------------------------------------------------------------------
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   395
// frame::update_map_with_saved_link
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   396
void frame::update_map_with_saved_link(RegisterMap* map, intptr_t** link_addr) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   397
  // The interpreter and compiler(s) always save EBP/RBP in a known
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   398
  // location on entry. We must record where that location is
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   399
  // so this if EBP/RBP was live on callout from c2 we can find
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   400
  // the saved copy no matter what it called.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   401
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   402
  // Since the interpreter always saves EBP/RBP if we record where it is then
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   403
  // we don't have to always save EBP/RBP on entry and exit to c2 compiled
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   404
  // code, on entry will be enough.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   405
  map->set_location(rbp->as_VMReg(), (address) link_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   406
#ifdef AMD64
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   407
  // this is weird "H" ought to be at a higher address however the
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   408
  // oopMaps seems to have the "H" regs at the same address and the
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   409
  // vanilla register.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   410
  // XXXX make this go away
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   411
  if (true) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   412
    map->set_location(rbp->as_VMReg()->next(), (address) link_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   413
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   414
#endif // AMD64
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   415
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   416
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   417
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   418
//------------------------------------------------------------------------------
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   419
// frame::sender_for_interpreter_frame
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
frame frame::sender_for_interpreter_frame(RegisterMap* map) const {
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   421
  // SP is the raw SP from the sender after adapter or interpreter
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   422
  // extension.
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   423
  intptr_t* sender_sp = this->sender_sp();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
  // This is the sp before any possible extension (adapter/locals).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
  intptr_t* unextended_sp = interpreter_frame_sender_sp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
#ifdef COMPILER2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
  if (map->update_map()) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   430
    update_map_with_saved_link(map, (intptr_t**) addr_at(link_offset));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
  }
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   432
#endif // COMPILER2
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   433
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   434
  return frame(sender_sp, unextended_sp, link(), sender_pc());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   438
//------------------------------------------------------------------------------
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   439
// frame::sender_for_compiled_frame
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
frame frame::sender_for_compiled_frame(RegisterMap* map) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
  assert(map != NULL, "map must be set");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  // frame owned by optimizing compiler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  assert(_cb->frame_size() >= 0, "must have non-zero frame size");
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   445
  intptr_t* sender_sp = unextended_sp() + _cb->frame_size();
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   446
  intptr_t* unextended_sp = sender_sp;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
  // On Intel the return_address is always the word on the stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  address sender_pc = (address) *(sender_sp-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   451
  // This is the saved value of EBP which may or may not really be an FP.
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   452
  // It is only an FP if the sender is an interpreter frame (or C1?).
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   453
  intptr_t** saved_fp_addr = (intptr_t**) (sender_sp - frame::sender_sp_offset);
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3261
diff changeset
   454
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
  if (map->update_map()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
    // Tell GC to use argument oopmaps for some runtime stubs that need it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
    // For C1, the runtime stub might not have oop maps, so set this flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
    // outside of update_register_map.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
    map->set_include_argument_oops(_cb->caller_must_gc_arguments(map->thread()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
    if (_cb->oop_maps() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
      OopMapSet::update_register_map(this, map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
    }
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   463
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   464
    // Since the prolog does the save and restore of EBP there is no oopmap
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
    // for it so we must fill in its location as if there was an oopmap entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
    // since if our caller was compiled code there could be live jvm state in it.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   467
    update_map_with_saved_link(map, saved_fp_addr);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  assert(sender_sp != sp(), "must have changed");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   471
  return frame(sender_sp, unextended_sp, *saved_fp_addr, sender_pc);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   474
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   475
//------------------------------------------------------------------------------
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   476
// frame::sender
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
frame frame::sender(RegisterMap* map) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
  // Default is we done have to follow them. The sender_for_xxx will
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  // update it accordingly
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  map->set_include_argument_oops(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  if (is_entry_frame())       return sender_for_entry_frame(map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  if (is_interpreted_frame()) return sender_for_interpreter_frame(map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  assert(_cb == CodeCache::find_blob(pc()),"Must be the same");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  if (_cb != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
    return sender_for_compiled_frame(map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  // Must be native-compiled frame, i.e. the marshaling code for native
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
  // methods that exists in the core system.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  return frame(sender_sp(), link(), sender_pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
bool frame::interpreter_frame_equals_unpacked_fp(intptr_t* fp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
  assert(is_interpreted_frame(), "must be interpreter frame");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   497
  Method* method = interpreter_frame_method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  // When unpacking an optimized frame the frame pointer is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  // adjusted with:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
  int diff = (method->max_locals() - method->size_of_parameters()) *
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4752
diff changeset
   501
             Interpreter::stackElementWords;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
  return _fp == (fp - diff);
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 frame::pd_gc_epilog() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
  // nothing done here now
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   509
bool frame::is_interpreted_frame_valid(JavaThread* thread) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
// QQQ
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
#ifdef CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  assert(is_interpreted_frame(), "Not an interpreted frame");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
  // These are reasonable sanity checks
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
  if (fp() == 0 || (intptr_t(fp()) & (wordSize-1)) != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
  if (sp() == 0 || (intptr_t(sp()) & (wordSize-1)) != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
  if (fp() + interpreter_frame_initial_sp_offset < sp()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  // These are hacks to keep us out of trouble.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  // The problem with these is that they mask other problems
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  if (fp() <= sp()) {        // this attempts to deal with unsigned comparison above
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
  }
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   529
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   530
  // do some validation of frame elements
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   531
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   532
  // first the method
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   533
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   534
  Method* m = *interpreter_frame_method_addr();
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   535
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   536
  // validate the method we'd find in this potential sender
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   537
  if (!Universe::heap()->is_valid_method(m)) return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   538
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   539
  // stack frames shouldn't be much larger than max_stack elements
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   540
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4752
diff changeset
   541
  if (fp() - sp() > 1024 + m->max_stack()*Interpreter::stackElementSize) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
  }
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   544
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   545
  // validate bci/bcx
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   546
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   547
  intptr_t  bcx    = interpreter_frame_bcx();
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   548
  if (m->validate_bci_from_bcx(bcx) < 0) {
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   549
    return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   550
  }
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   551
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   552
  // validate ConstantPoolCache*
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   553
  ConstantPoolCache* cp = *interpreter_frame_cache_addr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   554
  if (cp == NULL || !cp->is_metadata()) return false;
354
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   555
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   556
  // validate locals
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   557
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   558
  address locals =  (address) *interpreter_frame_locals_addr();
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   559
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   560
  if (locals > thread->stack_base() || locals < (address) fp()) return false;
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   561
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   562
  // We'd have to be pretty unlucky to be mislead at this point
3b42d6fdcb82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 1
diff changeset
   563
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
#endif // CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
BasicType frame::interpreter_frame_result(oop* oop_result, jvalue* value_result) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
#ifdef CC_INTERP
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
   570
  // Needed for JVMTI. The result should always be in the
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
   571
  // interpreterState object
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  interpreterState istate = get_interpreterState();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
#endif // CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  assert(is_interpreted_frame(), "interpreted frame expected");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   575
  Method* method = interpreter_frame_method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
  BasicType type = method->result_type();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  intptr_t* tos_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
  if (method->is_native()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
    // Prior to calling into the runtime to report the method_exit the possible
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
    // return value is pushed to the native stack. If the result is a jfloat/jdouble
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
    // then ST0 is saved before EAX/EDX. See the note in generate_native_result
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
    tos_addr = (intptr_t*)sp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
    if (type == T_FLOAT || type == T_DOUBLE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
    // QQQ seems like this code is equivalent on the two platforms
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
#ifdef AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
      // This is times two because we do a push(ltos) after pushing XMM0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
      // and that takes two interpreter stack slots.
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4752
diff changeset
   589
      tos_addr += 2 * Interpreter::stackElementWords;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
      tos_addr += 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
#endif // AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
    tos_addr = (intptr_t*)interpreter_frame_tos_address();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  switch (type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    case T_OBJECT  :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
    case T_ARRAY   : {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
      oop obj;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
      if (method->is_native()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
#ifdef CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
        obj = istate->_oop_temp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
        obj = (oop) at(interpreter_frame_oop_temp_offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
#endif // CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
        oop* obj_p = (oop*)tos_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
        obj = (obj_p == NULL) ? (oop)NULL : *obj_p;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
      assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
      *oop_result = obj;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
    case T_BOOLEAN : value_result->z = *(jboolean*)tos_addr; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
    case T_BYTE    : value_result->b = *(jbyte*)tos_addr; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
    case T_CHAR    : value_result->c = *(jchar*)tos_addr; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
    case T_SHORT   : value_result->s = *(jshort*)tos_addr; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
    case T_INT     : value_result->i = *(jint*)tos_addr; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
    case T_LONG    : value_result->j = *(jlong*)tos_addr; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
    case T_FLOAT   : {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
#ifdef AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
        value_result->f = *(jfloat*)tos_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
      if (method->is_native()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
        jdouble d = *(jdouble*)tos_addr;  // Result was in ST0 so need to convert to jfloat
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
        value_result->f = (jfloat)d;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
        value_result->f = *(jfloat*)tos_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
#endif // AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
    case T_DOUBLE  : value_result->d = *(jdouble*)tos_addr; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
    case T_VOID    : /* Nothing to do */ break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
    default        : ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
  return type;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
intptr_t* frame::interpreter_frame_tos_at(jint offset) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
  int index = (Interpreter::expr_offset_in_bytes(offset)/wordSize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
  return &interpreter_frame_tos_address()[index];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
}
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   648
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   649
#ifndef PRODUCT
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   650
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   651
#define DESCRIBE_FP_OFFSET(name) \
9632
cd86c748c12b 7043301: assert(locals < caller->fp() || locals > (caller->fp() + 16)) failed: locals in save area
never
parents: 9630
diff changeset
   652
  values.describe(frame_no, fp() + frame::name##_offset, #name)
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   653
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   654
void frame::describe_pd(FrameValues& values, int frame_no) {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11632
diff changeset
   655
  if (is_interpreted_frame()) {
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   656
    DESCRIBE_FP_OFFSET(interpreter_frame_sender_sp);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   657
    DESCRIBE_FP_OFFSET(interpreter_frame_last_sp);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   658
    DESCRIBE_FP_OFFSET(interpreter_frame_method);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   659
    DESCRIBE_FP_OFFSET(interpreter_frame_mdx);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   660
    DESCRIBE_FP_OFFSET(interpreter_frame_cache);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   661
    DESCRIBE_FP_OFFSET(interpreter_frame_locals);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   662
    DESCRIBE_FP_OFFSET(interpreter_frame_bcx);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   663
    DESCRIBE_FP_OFFSET(interpreter_frame_initial_sp);
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   664
  }
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   665
}
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 7397
diff changeset
   666
#endif
10539
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9632
diff changeset
   667
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9632
diff changeset
   668
intptr_t *frame::initial_deoptimization_info() {
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9632
diff changeset
   669
  // used to reset the saved FP
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9632
diff changeset
   670
  return fp();
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9632
diff changeset
   671
}
11486
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   672
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   673
intptr_t* frame::real_fp() const {
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   674
  if (_cb != NULL) {
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   675
    // use the frame size if valid
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   676
    int size = _cb->frame_size();
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11632
diff changeset
   677
    if (size > 0) {
11486
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   678
      return unextended_sp() + size;
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   679
    }
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   680
  }
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   681
  // else rely on fp()
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   682
  assert(! is_compiled_frame(), "unknown compiled frame size");
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   683
  return fp();
cdc636532368 7120448: Fix FP values for compiled frames in frame::describe
bdelsart
parents: 10980
diff changeset
   684
}