hotspot/src/share/vm/asm/codeBuffer.hpp
author david
Tue, 29 Sep 2015 11:02:08 +0200
changeset 33105 294e48b4f704
parent 31620 53be635ad49c
child 33198 b37ad9fbf681
permissions -rw-r--r--
8080775: Better argument formatting for assert() and friends Reviewed-by: kbarrett, pliden
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
31599
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
     2
 * Copyright (c) 1997, 2015, 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: 5334
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5334
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: 5334
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: 6772
diff changeset
    25
#ifndef SHARE_VM_ASM_CODEBUFFER_HPP
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
    26
#define SHARE_VM_ASM_CODEBUFFER_HPP
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
    27
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
    28
#include "code/oopRecorder.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
    29
#include "code/relocInfo.hpp"
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
    30
#include "utilities/debug.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
    31
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
    32
class CodeStrings;
14626
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
    33
class PhaseCFG;
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
    34
class Compile;
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
    35
class BufferBlob;
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
    36
class CodeBuffer;
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
    37
class Label;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    38
489c9b5090e2 Initial load
duke
parents:
diff changeset
    39
class CodeOffsets: public StackObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    40
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
  enum Entries { Entry,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
                 Verified_Entry,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
                 Frame_Complete, // Offset in the code where the frame setup is (for forte stackwalks) is complete
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
                 OSR_Entry,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
                 Exceptions,     // Offset where exception handler lives
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
                 Deopt,          // Offset where deopt handler lives
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
    47
                 DeoptMH,        // Offset where MethodHandle deopt handler lives
5334
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 4752
diff changeset
    48
                 UnwindHandler,  // Offset to default unwind handler
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    49
                 max_Entries };
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
  // special value to note codeBlobs where profile (forte) stack walking is
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
  // always dangerous and suspect.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
  enum { frame_never_safe = -1 };
489c9b5090e2 Initial load
duke
parents:
diff changeset
    55
489c9b5090e2 Initial load
duke
parents:
diff changeset
    56
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    57
  int _values[max_Entries];
489c9b5090e2 Initial load
duke
parents:
diff changeset
    58
489c9b5090e2 Initial load
duke
parents:
diff changeset
    59
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    60
  CodeOffsets() {
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
    61
    _values[Entry         ] = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    62
    _values[Verified_Entry] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    63
    _values[Frame_Complete] = frame_never_safe;
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
    64
    _values[OSR_Entry     ] = 0;
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
    65
    _values[Exceptions    ] = -1;
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
    66
    _values[Deopt         ] = -1;
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
    67
    _values[DeoptMH       ] = -1;
5334
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 4752
diff changeset
    68
    _values[UnwindHandler ] = -1;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    69
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    70
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
  int value(Entries e) { return _values[e]; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
  void set_value(Entries e, int val) { _values[e] = val; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
// This class represents a stream of code and associated relocations.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    76
// There are a few in each CodeBuffer.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
// They are filled concurrently, and concatenated at the end.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
class CodeSection VALUE_OBJ_CLASS_SPEC {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
  friend class CodeBuffer;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
  typedef int csize_t;  // code size type; would be size_t except for history
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
  address     _start;           // first byte of contents (instructions)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
  address     _mark;            // user mark, usually an instruction beginning
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
  address     _end;             // current end address
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
  address     _limit;           // last possible (allocated) end address
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
  relocInfo*  _locs_start;      // first byte of relocation information
489c9b5090e2 Initial load
duke
parents:
diff changeset
    89
  relocInfo*  _locs_end;        // first byte after relocation information
489c9b5090e2 Initial load
duke
parents:
diff changeset
    90
  relocInfo*  _locs_limit;      // first byte after relocation information buf
489c9b5090e2 Initial load
duke
parents:
diff changeset
    91
  address     _locs_point;      // last relocated position (grows upward)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    92
  bool        _locs_own;        // did I allocate the locs myself?
489c9b5090e2 Initial load
duke
parents:
diff changeset
    93
  bool        _frozen;          // no more expansion of this section
489c9b5090e2 Initial load
duke
parents:
diff changeset
    94
  char        _index;           // my section number (SECT_INST, etc.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    95
  CodeBuffer* _outer;           // enclosing CodeBuffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
    96
489c9b5090e2 Initial load
duke
parents:
diff changeset
    97
  // (Note:  _locs_point used to be called _last_reloc_offset.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    98
489c9b5090e2 Initial load
duke
parents:
diff changeset
    99
  CodeSection() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   100
    _start         = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   101
    _mark          = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   102
    _end           = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   103
    _limit         = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   104
    _locs_start    = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   105
    _locs_end      = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   106
    _locs_limit    = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   107
    _locs_point    = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   108
    _locs_own      = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   109
    _frozen        = false;
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5702
diff changeset
   110
    debug_only(_index = (char)-1);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   111
    debug_only(_outer = (CodeBuffer*)badAddress);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   112
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   113
489c9b5090e2 Initial load
duke
parents:
diff changeset
   114
  void initialize_outer(CodeBuffer* outer, int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   115
    _outer = outer;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   116
    _index = index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   117
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   118
489c9b5090e2 Initial load
duke
parents:
diff changeset
   119
  void initialize(address start, csize_t size = 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   120
    assert(_start == NULL, "only one init step, please");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   121
    _start         = start;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   122
    _mark          = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   123
    _end           = start;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   124
489c9b5090e2 Initial load
duke
parents:
diff changeset
   125
    _limit         = start + size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   126
    _locs_point    = start;
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 initialize_locs(int locs_capacity);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   130
  void expand_locs(int new_capacity);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   131
  void initialize_locs_from(const CodeSection* source_cs);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   132
489c9b5090e2 Initial load
duke
parents:
diff changeset
   133
  // helper for CodeBuffer::expand()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   134
  void take_over_code_from(CodeSection* cs) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   135
    _start      = cs->_start;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   136
    _mark       = cs->_mark;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   137
    _end        = cs->_end;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   138
    _limit      = cs->_limit;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   139
    _locs_point = cs->_locs_point;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   140
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   141
489c9b5090e2 Initial load
duke
parents:
diff changeset
   142
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   143
  address     start() const         { return _start; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   144
  address     mark() const          { return _mark; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   145
  address     end() const           { return _end; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   146
  address     limit() const         { return _limit; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   147
  csize_t     size() const          { return (csize_t)(_end - _start); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   148
  csize_t     mark_off() const      { assert(_mark != NULL, "not an offset");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   149
                                      return (csize_t)(_mark - _start); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   150
  csize_t     capacity() const      { return (csize_t)(_limit - _start); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   151
  csize_t     remaining() const     { return (csize_t)(_limit - _end); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   152
489c9b5090e2 Initial load
duke
parents:
diff changeset
   153
  relocInfo*  locs_start() const    { return _locs_start; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   154
  relocInfo*  locs_end() const      { return _locs_end; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   155
  int         locs_count() const    { return (int)(_locs_end - _locs_start); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   156
  relocInfo*  locs_limit() const    { return _locs_limit; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   157
  address     locs_point() const    { return _locs_point; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   158
  csize_t     locs_point_off() const{ return (csize_t)(_locs_point - _start); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   159
  csize_t     locs_capacity() const { return (csize_t)(_locs_limit - _locs_start); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   160
  csize_t     locs_remaining()const { return (csize_t)(_locs_limit - _locs_end); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   161
489c9b5090e2 Initial load
duke
parents:
diff changeset
   162
  int         index() const         { return _index; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   163
  bool        is_allocated() const  { return _start != NULL; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   164
  bool        is_empty() const      { return _start == _end; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   165
  bool        is_frozen() const     { return _frozen; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   166
  bool        has_locs() const      { return _locs_end != NULL; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   167
489c9b5090e2 Initial load
duke
parents:
diff changeset
   168
  CodeBuffer* outer() const         { return _outer; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   169
489c9b5090e2 Initial load
duke
parents:
diff changeset
   170
  // is a given address in this section?  (2nd version is end-inclusive)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   171
  bool contains(address pc) const   { return pc >= _start && pc <  _end; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   172
  bool contains2(address pc) const  { return pc >= _start && pc <= _end; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   173
  bool allocates(address pc) const  { return pc >= _start && pc <  _limit; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   174
  bool allocates2(address pc) const { return pc >= _start && pc <= _limit; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   175
33105
294e48b4f704 8080775: Better argument formatting for assert() and friends
david
parents: 31620
diff changeset
   176
  void    set_end(address pc)       { assert(allocates2(pc), "not in CodeBuffer memory: " INTPTR_FORMAT " <= " INTPTR_FORMAT " <= " INTPTR_FORMAT, p2i(_start), p2i(pc), p2i(_limit)); _end = pc; }
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6432
diff changeset
   177
  void    set_mark(address pc)      { assert(contains2(pc), "not in codeBuffer");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   178
                                      _mark = pc; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   179
  void    set_mark_off(int offset)  { assert(contains2(offset+_start),"not in codeBuffer");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   180
                                      _mark = offset + _start; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   181
  void    set_mark()                { _mark = _end; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   182
  void    clear_mark()              { _mark = NULL; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   183
489c9b5090e2 Initial load
duke
parents:
diff changeset
   184
  void    set_locs_end(relocInfo* p) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   185
    assert(p <= locs_limit(), "locs data fits in allocated buffer");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   186
    _locs_end = p;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   187
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   188
  void    set_locs_point(address pc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   189
    assert(pc >= locs_point(), "relocation addr may not decrease");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   190
    assert(allocates2(pc),     "relocation addr must be in this section");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   191
    _locs_point = pc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   192
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   193
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   194
  // Code emission
14625
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   195
  void emit_int8 ( int8_t  x)  { *((int8_t*)  end()) = x; set_end(end() + sizeof(int8_t)); }
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   196
  void emit_int16( int16_t x)  { *((int16_t*) end()) = x; set_end(end() + sizeof(int16_t)); }
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   197
  void emit_int32( int32_t x)  { *((int32_t*) end()) = x; set_end(end() + sizeof(int32_t)); }
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   198
  void emit_int64( int64_t x)  { *((int64_t*) end()) = x; set_end(end() + sizeof(int64_t)); }
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   199
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   200
  void emit_float( jfloat  x)  { *((jfloat*)  end()) = x; set_end(end() + sizeof(jfloat)); }
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   201
  void emit_double(jdouble x)  { *((jdouble*) end()) = x; set_end(end() + sizeof(jdouble)); }
b02f361c324e 8003195: AbstractAssembler should not store code pointers but use the CodeSection directly
twisti
parents: 13887
diff changeset
   202
  void emit_address(address x) { *((address*) end()) = x; set_end(end() + sizeof(address)); }
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   203
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   204
  // Share a scratch buffer for relocinfo.  (Hacky; saves a resource allocation.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   205
  void initialize_shared_locs(relocInfo* buf, int length);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   206
489c9b5090e2 Initial load
duke
parents:
diff changeset
   207
  // Manage labels and their addresses.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   208
  address target(Label& L, address branch_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   209
489c9b5090e2 Initial load
duke
parents:
diff changeset
   210
  // Emit a relocation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   211
  void relocate(address at, RelocationHolder const& rspec, int format = 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   212
  void relocate(address at,    relocInfo::relocType rtype, int format = 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   213
    if (rtype != relocInfo::none)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   214
      relocate(at, Relocation::spec_simple(rtype), format);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   215
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   216
489c9b5090e2 Initial load
duke
parents:
diff changeset
   217
  // alignment requirement for starting offset
489c9b5090e2 Initial load
duke
parents:
diff changeset
   218
  // Requirements are that the instruction area and the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   219
  // stubs area must start on CodeEntryAlignment, and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   220
  // the ctable on sizeof(jdouble)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   221
  int alignment() const             { return MAX2((int)sizeof(jdouble), (int)CodeEntryAlignment); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   222
489c9b5090e2 Initial load
duke
parents:
diff changeset
   223
  // Slop between sections, used only when allocating temporary BufferBlob buffers.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   224
  static csize_t end_slop()         { return MAX2((int)sizeof(jdouble), (int)CodeEntryAlignment); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   225
489c9b5090e2 Initial load
duke
parents:
diff changeset
   226
  csize_t align_at_start(csize_t off) const { return (csize_t) align_size_up(off, alignment()); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   227
489c9b5090e2 Initial load
duke
parents:
diff changeset
   228
  // Mark a section frozen.  Assign its remaining space to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   229
  // the following section.  It will never expand after this point.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   230
  inline void freeze();         //  { _outer->freeze_section(this); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   231
489c9b5090e2 Initial load
duke
parents:
diff changeset
   232
  // Ensure there's enough space left in the current section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   233
  // Return true if there was an expansion.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   234
  bool maybe_expand_to_ensure_remaining(csize_t amount);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   235
489c9b5090e2 Initial load
duke
parents:
diff changeset
   236
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   237
  void decode();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   238
  void dump();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   239
  void print(const char* name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   240
#endif //PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   241
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   242
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   243
class CodeString;
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   244
class CodeStrings VALUE_OBJ_CLASS_SPEC {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   245
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   246
#ifndef PRODUCT
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   247
  CodeString* _strings;
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   248
#ifdef ASSERT
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   249
  // Becomes true after copy-out, forbids further use.
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   250
  bool _defunct; // Zero bit pattern is "valid", see memset call in decode_env::decode_env
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   251
#endif
31599
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   252
  static const char* _prefix; // defaults to " ;; "
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   253
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   254
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   255
  CodeString* find(intptr_t offset) const;
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   256
  CodeString* find_last(intptr_t offset) const;
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   257
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   258
  void set_null_and_invalidate() {
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   259
#ifndef PRODUCT
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   260
    _strings = NULL;
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   261
#ifdef ASSERT
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   262
    _defunct = true;
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   263
#endif
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   264
#endif
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   265
  }
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   266
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   267
public:
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   268
  CodeStrings() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   269
#ifndef PRODUCT
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   270
    _strings = NULL;
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   271
#ifdef ASSERT
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   272
    _defunct = false;
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   273
#endif
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   274
#endif
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   275
  }
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   276
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   277
  bool is_null() {
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   278
#ifdef ASSERT
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   279
    return _strings == NULL;
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   280
#else
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   281
    return true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   282
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   283
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   284
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   285
  const char* add_string(const char * string) PRODUCT_RETURN_(return NULL;);
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   286
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   287
  void add_comment(intptr_t offset, const char * comment) PRODUCT_RETURN;
13887
89b873bcc55b 7200163: add CodeComments functionality to assember stubs
kvn
parents: 13728
diff changeset
   288
  void print_block_comment(outputStream* stream, intptr_t offset) const PRODUCT_RETURN;
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   289
  // MOVE strings from other to this; invalidate other.
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   290
  void assign(CodeStrings& other)  PRODUCT_RETURN;
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   291
  // COPY strings from other to this; leave other valid.
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   292
  void copy(CodeStrings& other)  PRODUCT_RETURN;
31599
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   293
  // FREE strings; invalidate this.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   294
  void free() PRODUCT_RETURN;
31599
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   295
  // Guarantee that _strings are used at most once; assign and free invalidate a buffer.
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   296
  inline void check_valid() const {
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   297
#ifdef ASSERT
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   298
    assert(!_defunct, "Use of invalid CodeStrings");
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   299
#endif
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   300
  }
31599
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   301
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   302
  static void set_prefix(const char *prefix) {
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   303
#ifndef PRODUCT
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   304
    _prefix = prefix;
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   305
#endif
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   306
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   307
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   308
489c9b5090e2 Initial load
duke
parents:
diff changeset
   309
// A CodeBuffer describes a memory space into which assembly
489c9b5090e2 Initial load
duke
parents:
diff changeset
   310
// code is generated.  This memory space usually occupies the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   311
// interior of a single BufferBlob, but in some cases it may be
489c9b5090e2 Initial load
duke
parents:
diff changeset
   312
// an arbitrary span of memory, even outside the code cache.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   313
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   314
// A code buffer comes in two variants:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   315
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   316
// (1) A CodeBuffer referring to an already allocated piece of memory:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   317
//     This is used to direct 'static' code generation (e.g. for interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   318
//     or stubroutine generation, etc.).  This code comes with NO relocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   319
//     information.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   320
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   321
// (2) A CodeBuffer referring to a piece of memory allocated when the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   322
//     CodeBuffer is allocated.  This is used for nmethod generation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   323
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   324
// The memory can be divided up into several parts called sections.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
// Each section independently accumulates code (or data) an relocations.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
// Sections can grow (at the expense of a reallocation of the BufferBlob
489c9b5090e2 Initial load
duke
parents:
diff changeset
   327
// and recopying of all active sections).  When the buffered code is finally
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
// written to an nmethod (or other CodeBlob), the contents (code, data,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   329
// and relocations) of the sections are padded to an alignment and concatenated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   330
// Instructions and data in one section can contain relocatable references to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
// addresses in a sibling section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   332
489c9b5090e2 Initial load
duke
parents:
diff changeset
   333
class CodeBuffer: public StackObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
  friend class CodeSection;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
  // CodeBuffers must be allocated on the stack except for a single
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
  // special case during expansion which is handled internally.  This
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
  // is done to guarantee proper cleanup of resources.
19696
bd5a0131bde1 8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
coleenp
parents: 16368
diff changeset
   340
  void* operator new(size_t size) throw() { return ResourceObj::operator new(size); }
bd5a0131bde1 8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
coleenp
parents: 16368
diff changeset
   341
  void  operator delete(void* p)          { ShouldNotCallThis(); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
  typedef int csize_t;  // code size type; would be size_t except for history
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
  enum {
6432
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   346
    // Here is the list of all possible sections.  The order reflects
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   347
    // the final layout.
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   348
    SECT_FIRST = 0,
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   349
    SECT_CONSTS = SECT_FIRST, // Non-instruction data:  Floats, jump tables, etc.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
    SECT_INSTS,               // Executable instructions.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
    SECT_STUBS,               // Outbound trampolines for supporting call sites.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   352
    SECT_LIMIT, SECT_NONE = -1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   353
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   356
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   357
    sect_bits = 2,      // assert (SECT_LIMIT <= (1<<sect_bits))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
    sect_mask = (1<<sect_bits)-1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
  const char*  _name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   362
6432
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   363
  CodeSection  _consts;             // constants, jump tables
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
  CodeSection  _insts;              // instructions (the main section)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   365
  CodeSection  _stubs;              // stubs (call site support), deopt, exception handling
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
  CodeBuffer*  _before_expand;  // dead buffer, from before the last expansion
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
  BufferBlob*  _blob;           // optional buffer in CodeCache for generated code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
  address      _total_start;    // first address of combined memory buffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
  csize_t      _total_size;     // size in bytes of combined memory buffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
  OopRecorder* _oop_recorder;
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   374
  CodeStrings  _code_strings;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
  OopRecorder  _default_oop_recorder;  // override with initialize_oop_recorder
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  Arena*       _overflow_arena;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
  address      _decode_begin;   // start address for decode
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  address      decode_begin();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
  void initialize_misc(const char * name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
    // all pointers other than code_start/end and those inside the sections
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
    assert(name != NULL, "must have a name");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
    _name            = name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
    _before_expand   = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
    _blob            = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
    _oop_recorder    = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
    _decode_begin    = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
    _overflow_arena  = NULL;
31599
f1b42743d3ee 8081406: cleanup and minor extensions of the debugging facilities in CodeStrings
bdelsart
parents: 29193
diff changeset
   390
    _code_strings    = CodeStrings();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
  void initialize(address code_start, csize_t code_size) {
6432
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   394
    _consts.initialize_outer(this,  SECT_CONSTS);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
    _insts.initialize_outer(this,   SECT_INSTS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
    _stubs.initialize_outer(this,   SECT_STUBS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
    _total_start = code_start;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
    _total_size  = code_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
    // Initialize the main section:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
    _insts.initialize(code_start, code_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
    assert(!_stubs.is_allocated(),  "no garbage here");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
    assert(!_consts.is_allocated(), "no garbage here");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
    _oop_recorder = &_default_oop_recorder;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
  void initialize_section_size(CodeSection* cs, csize_t size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  void freeze_section(CodeSection* cs);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  // helper for CodeBuffer::expand()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
  void take_over_code_from(CodeBuffer* cs);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
  // ensure sections are disjoint, ordered, and contained in the blob
10983
9ab65f4cec18 7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents: 8921
diff changeset
   414
  void verify_section_allocation();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
  // copies combined relocations to the blob, returns bytes copied
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
  // (if target is null, it is a dry run only, just for sizing)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
  csize_t copy_relocations_to(CodeBlob* blob) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
  // copies combined code to the blob (assumes relocs are already in there)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
  void copy_code_to(CodeBlob* blob);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
  // moves code sections to new buffer (assumes relocs are already in there)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
  void relocate_code_to(CodeBuffer* cb) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
  // set up a model of the final layout of my contents
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
  void compute_final_layout(CodeBuffer* dest) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
  // Expand the given section so at least 'amount' is remaining.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
  // Creates a new, larger BufferBlob, and rewrites the code & relocs.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
  void expand(CodeSection* which_cs, csize_t amount);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
  // Helper for expand.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
  csize_t figure_expanded_capacities(CodeSection* which_cs, csize_t amount, csize_t* new_capacity);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
  // (1) code buffer referring to pre-allocated instruction memory
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   438
  CodeBuffer(address code_start, csize_t code_size) {
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   439
    assert(code_start != NULL, "sanity");
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   440
    initialize_misc("static buffer");
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   441
    initialize(code_start, code_size);
10983
9ab65f4cec18 7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents: 8921
diff changeset
   442
    verify_section_allocation();
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   443
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   445
  // (2) CodeBuffer referring to pre-allocated CodeBlob.
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   446
  CodeBuffer(CodeBlob* blob);
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   447
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   448
  // (3) code buffer allocating codeBlob memory for code & relocation
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  // info but with lazy initialization.  The name must be something
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
  // informative.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
  CodeBuffer(const char* name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
    initialize_misc(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   456
  // (4) code buffer allocating codeBlob memory for code & relocation
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
  // info.  The name must be something informative and code_size must
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
  // include both code and stubs sizes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
  CodeBuffer(const char* name, csize_t code_size, csize_t locs_size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
    initialize_misc(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
    initialize(code_size, locs_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
  ~CodeBuffer();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   466
  // Initialize a CodeBuffer constructed using constructor 3.  Using
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   467
  // constructor 4 is equivalent to calling constructor 3 and then
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  // calling this method.  It's been factored out for convenience of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  // construction.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  void initialize(csize_t code_size, csize_t locs_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
6432
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   472
  CodeSection* consts()            { return &_consts; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
  CodeSection* insts()             { return &_insts; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  CodeSection* stubs()             { return &_stubs; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
6432
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   476
  // present sections in order; return NULL at end; consts is #0, etc.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  CodeSection* code_section(int n) {
6432
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   478
    // This makes the slightly questionable but portable assumption
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   479
    // that the various members (_consts, _insts, _stubs, etc.) are
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   480
    // adjacent in the layout of CodeBuffer.
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   481
    CodeSection* cs = &_consts + n;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
    assert(cs->index() == n || !cs->is_allocated(), "sanity");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
    return cs;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  const CodeSection* code_section(int n) const {  // yucky const stuff
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
    return ((CodeBuffer*)this)->code_section(n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
  static const char* code_section_name(int n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  int section_index_of(address addr) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
  bool contains(address addr) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
    // handy for debugging
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
    return section_index_of(addr) > SECT_NONE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
  // A stable mapping between 'locators' (small ints) and addresses.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
  static int locator_pos(int locator)   { return locator >> sect_bits; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  static int locator_sect(int locator)  { return locator &  sect_mask; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  static int locator(int pos, int sect) { return (pos << sect_bits) | sect; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  int        locator(address addr) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
  address    locator_address(int locator) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
14626
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
   502
  // Heuristic for pre-packing the taken/not-taken bit of a predicted branch.
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
   503
  bool is_backward_branch(Label& L);
0cf4eccf130f 8003240: x86: move MacroAssembler into separate file
twisti
parents: 14625
diff changeset
   504
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
  // Properties
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
  const char* name() const                  { return _name; }
31620
53be635ad49c 8087333: Optionally Pre-Generate the HotSpot Template Interpreter
bdelsart
parents: 31599
diff changeset
   507
  void set_name(const char* name)           { _name = name; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  CodeBuffer* before_expand() const         { return _before_expand; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
  BufferBlob* blob() const                  { return _blob; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  void    set_blob(BufferBlob* blob);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
  void   free_blob();                       // Free the blob, if we own one.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  // Properties relative to the insts section:
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   514
  address       insts_begin() const      { return _insts.start();      }
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   515
  address       insts_end() const        { return _insts.end();        }
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   516
  void      set_insts_end(address end)   {        _insts.set_end(end); }
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   517
  address       insts_limit() const      { return _insts.limit();      }
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   518
  address       insts_mark() const       { return _insts.mark();       }
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   519
  void      set_insts_mark()             {        _insts.set_mark();   }
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   520
  void    clear_insts_mark()             {        _insts.clear_mark(); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  // is there anything in the buffer other than the current section?
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   523
  bool    is_pure() const                { return insts_size() == total_content_size(); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  // size in bytes of output so far in the insts sections
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   526
  csize_t insts_size() const             { return _insts.size(); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   528
  // same as insts_size(), except that it asserts there is no non-code here
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   529
  csize_t pure_insts_size() const        { assert(is_pure(), "no non-code");
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   530
                                           return insts_size(); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
  // capacity in bytes of the insts sections
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   532
  csize_t insts_capacity() const         { return _insts.capacity(); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  // number of bytes remaining in the insts section
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   535
  csize_t insts_remaining() const        { return _insts.remaining(); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
  // is a given address in the insts section?  (2nd version is end-inclusive)
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   538
  bool insts_contains(address pc) const  { return _insts.contains(pc); }
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   539
  bool insts_contains2(address pc) const { return _insts.contains2(pc); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   541
  // Record any extra oops required to keep embedded metadata alive
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   542
  void finalize_oop_references(methodHandle method);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   543
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   544
  // Allocated size in all sections, when aligned and concatenated
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   545
  // (this is the eventual state of the content in its final
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   546
  // CodeBlob).
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6184
diff changeset
   547
  csize_t total_content_size() const;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
6432
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   549
  // Combined offset (relative to start of first section) of given
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   550
  // section, as eventually found in the final CodeBlob.
d36e09b60939 6961697: move nmethod constants section before instruction section
twisti
parents: 6418
diff changeset
   551
  csize_t total_offset_of(CodeSection* cs) const;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  // allocated size of all relocation data, including index, rounded up
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
  csize_t total_relocation_size() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
  // allocated size of any and all recorded oops
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  csize_t total_oop_size() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
    OopRecorder* recorder = oop_recorder();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
    return (recorder == NULL)? 0: recorder->oop_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   562
  // allocated size of any and all recorded metadata
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   563
  csize_t total_metadata_size() const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   564
    OopRecorder* recorder = oop_recorder();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   565
    return (recorder == NULL)? 0: recorder->metadata_size();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   566
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   567
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  // Configuration functions, called immediately after the CB is constructed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  // The section sizes are subtracted from the original insts section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  // Note:  Call them in reverse section order, because each steals from insts.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  void initialize_consts_size(csize_t size)            { initialize_section_size(&_consts,  size); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  void initialize_stubs_size(csize_t size)             { initialize_section_size(&_stubs,   size); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  // Override default oop recorder.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  void initialize_oop_recorder(OopRecorder* r);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
  OopRecorder* oop_recorder() const   { return _oop_recorder; }
26432
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   577
  CodeStrings& strings()              { return _code_strings; }
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   578
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   579
  void free_strings() {
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   580
    if (!_code_strings.is_null()) {
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   581
      _code_strings.free(); // sets _strings Null as a side-effect.
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   582
    }
9b974e2eae27 8054292: code comments leak in fastdebug builds
drchase
parents: 24424
diff changeset
   583
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  // Code generation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
  void relocate(address at, RelocationHolder const& rspec, int format = 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
    _insts.relocate(at, rspec, format);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
  void relocate(address at,    relocInfo::relocType rtype, int format = 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
    _insts.relocate(at, rtype, format);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
  // Management of overflow storage for binding of Labels.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  GrowableArray<int>* create_patch_overflow();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  // NMethod generation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  void copy_code_and_locs_to(CodeBlob* blob) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
    assert(blob != NULL, "sane");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    copy_relocations_to(blob);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
    copy_code_to(blob);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   602
  void copy_values_to(nmethod* nm) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
    if (!oop_recorder()->is_unused()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10983
diff changeset
   604
      oop_recorder()->copy_values_to(nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  // Transform an address from the code in this code buffer to a specified code buffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  address transform_address(const CodeBuffer &cb, address addr) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  void block_comment(intptr_t offset, const char * comment) PRODUCT_RETURN;
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14626
diff changeset
   612
  const char* code_string(const char* str) PRODUCT_RETURN_(return NULL;);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
10983
9ab65f4cec18 7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents: 8921
diff changeset
   614
  // Log a little info about section usage in the CodeBuffer
9ab65f4cec18 7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents: 8921
diff changeset
   615
  void log_section_sizes(const char* name);
9ab65f4cec18 7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents: 8921
diff changeset
   616
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  // Printing / Decoding
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  // decodes from decode_begin() to code_end() and sets decode_begin to end
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
  void    decode();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  void    decode_all();         // decodes all the code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  void    skip_decode();        // sets decode_begin to code_end();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
  void    print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
  // The following header contains architecture-specific implementations
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   629
#ifdef TARGET_ARCH_x86
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   630
# include "codeBuffer_x86.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   631
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   632
#ifdef TARGET_ARCH_sparc
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   633
# include "codeBuffer_sparc.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   634
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   635
#ifdef TARGET_ARCH_zero
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   636
# include "codeBuffer_zero.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   637
#endif
8107
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 7397
diff changeset
   638
#ifdef TARGET_ARCH_arm
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 7397
diff changeset
   639
# include "codeBuffer_arm.hpp"
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 7397
diff changeset
   640
#endif
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 7397
diff changeset
   641
#ifdef TARGET_ARCH_ppc
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 7397
diff changeset
   642
# include "codeBuffer_ppc.hpp"
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 7397
diff changeset
   643
#endif
29180
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26432
diff changeset
   644
#ifdef TARGET_ARCH_aarch64
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26432
diff changeset
   645
# include "codeBuffer_aarch64.hpp"
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26432
diff changeset
   646
#endif
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   647
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
inline void CodeSection::freeze() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  _outer->freeze_section(this);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
inline bool CodeSection::maybe_expand_to_ensure_remaining(csize_t amount) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
  if (remaining() < amount) { _outer->expand(this, amount); return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
}
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   659
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6772
diff changeset
   660
#endif // SHARE_VM_ASM_CODEBUFFER_HPP