Mercurial > hg > truffle
annotate src/share/vm/compiler/disassembler.cpp @ 362:f8199438385b
Merge
author | apetrusenko |
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date | Wed, 17 Sep 2008 16:49:18 +0400 |
parents | c7c777385a15 |
children | 4e6abf09f540 |
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1 /* |
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2 * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 # include "incls/_precompiled.incl" |
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26 # include "incls/_disassembler.cpp.incl" |
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27 |
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28 void* Disassembler::_library = NULL; |
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29 bool Disassembler::_tried_to_load_library = false; |
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30 |
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31 // This routine is in the shared library: |
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32 Disassembler::decode_func Disassembler::_decode_instructions = NULL; |
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33 |
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34 static const char hsdis_library_name[] = "hsdis-"HOTSPOT_LIB_ARCH; |
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35 static const char decode_instructions_name[] = "decode_instructions"; |
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36 |
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37 #define COMMENT_COLUMN 40 LP64_ONLY(+8) /*could be an option*/ |
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38 #define BYTES_COMMENT ";..." /* funky byte display comment */ |
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39 |
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40 bool Disassembler::load_library() { |
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41 if (_decode_instructions != NULL) { |
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42 // Already succeeded. |
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43 return true; |
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44 } |
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45 if (_tried_to_load_library) { |
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46 // Do not try twice. |
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47 // To force retry in debugger: assign _tried_to_load_library=0 |
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48 return false; |
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49 } |
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50 // Try to load it. |
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51 char ebuf[1024]; |
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52 char buf[JVM_MAXPATHLEN]; |
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53 os::jvm_path(buf, sizeof(buf)); |
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54 int jvm_offset = -1; |
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55 { |
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56 // Match "jvm[^/]*" in jvm_path. |
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57 const char* base = buf; |
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58 const char* p = strrchr(buf, '/'); |
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59 p = strstr(p ? p : base, "jvm"); |
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60 if (p != NULL) jvm_offset = p - base; |
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61 } |
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62 if (jvm_offset >= 0) { |
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63 // Find the disassembler next to libjvm.so. |
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64 strcpy(&buf[jvm_offset], hsdis_library_name); |
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65 strcat(&buf[jvm_offset], os::dll_file_extension()); |
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66 _library = hpi::dll_load(buf, ebuf, sizeof ebuf); |
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67 } |
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68 if (_library == NULL) { |
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69 // Try a free-floating lookup. |
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70 strcpy(&buf[0], hsdis_library_name); |
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71 strcat(&buf[0], os::dll_file_extension()); |
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72 _library = hpi::dll_load(buf, ebuf, sizeof ebuf); |
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73 } |
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74 if (_library != NULL) { |
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75 _decode_instructions = CAST_TO_FN_PTR(Disassembler::decode_func, |
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76 hpi::dll_lookup(_library, decode_instructions_name)); |
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77 } |
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78 _tried_to_load_library = true; |
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79 if (_decode_instructions == NULL) { |
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80 tty->print_cr("Could not load %s; %s; %s", buf, |
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81 ((_library != NULL) |
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82 ? "entry point is missing" |
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83 : (WizardMode || PrintMiscellaneous) |
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84 ? (const char*)ebuf |
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85 : "library not loadable"), |
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86 "PrintAssembly is disabled"); |
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87 return false; |
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88 } |
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89 |
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90 // Success. |
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91 tty->print_cr("Loaded disassembler from %s", buf); |
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92 return true; |
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93 } |
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94 |
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95 |
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96 class decode_env { |
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97 private: |
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98 nmethod* _nm; |
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99 CodeBlob* _code; |
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100 outputStream* _output; |
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101 address _start, _end; |
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102 |
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103 char _option_buf[512]; |
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104 char _print_raw; |
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105 bool _print_pc; |
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106 bool _print_bytes; |
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107 address _cur_insn; |
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108 int _total_ticks; |
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109 int _bytes_per_line; // arch-specific formatting option |
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110 |
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111 static bool match(const char* event, const char* tag) { |
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112 size_t taglen = strlen(tag); |
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113 if (strncmp(event, tag, taglen) != 0) |
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114 return false; |
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115 char delim = event[taglen]; |
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116 return delim == '\0' || delim == ' ' || delim == '/' || delim == '='; |
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117 } |
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118 |
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119 void collect_options(const char* p) { |
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120 if (p == NULL || p[0] == '\0') return; |
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121 size_t opt_so_far = strlen(_option_buf); |
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122 if (opt_so_far + 1 + strlen(p) + 1 > sizeof(_option_buf)) return; |
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123 char* fillp = &_option_buf[opt_so_far]; |
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124 if (opt_so_far > 0) *fillp++ = ','; |
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125 strcat(fillp, p); |
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126 // replace white space by commas: |
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127 char* q = fillp; |
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128 while ((q = strpbrk(q, " \t\n")) != NULL) |
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129 *q++ = ','; |
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130 // Note that multiple PrintAssemblyOptions flags accumulate with \n, |
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131 // which we want to be changed to a comma... |
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132 } |
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133 |
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134 void print_insn_labels(); |
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135 void print_insn_bytes(address pc0, address pc); |
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136 void print_address(address value); |
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137 |
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138 public: |
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139 decode_env(CodeBlob* code, outputStream* output); |
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140 |
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141 address decode_instructions(address start, address end); |
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142 |
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143 void start_insn(address pc) { |
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144 _cur_insn = pc; |
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145 output()->bol(); |
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146 print_insn_labels(); |
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147 } |
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|
148 |
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parents:
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|
149 void end_insn(address pc) { |
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parents:
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|
150 address pc0 = cur_insn(); |
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parents:
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|
151 outputStream* st = output(); |
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parents:
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|
152 if (_print_bytes && pc > pc0) |
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parents:
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|
153 print_insn_bytes(pc0, pc); |
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parents:
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|
154 if (_nm != NULL) |
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parents:
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|
155 _nm->print_code_comment_on(st, COMMENT_COLUMN, pc0, pc); |
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|
156 |
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parents:
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|
157 // Output pc bucket ticks if we have any |
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|
158 if (total_ticks() != 0) { |
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parents:
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changeset
|
159 address bucket_pc = FlatProfiler::bucket_start_for(pc); |
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parents:
diff
changeset
|
160 if (bucket_pc != NULL && bucket_pc > pc0 && bucket_pc <= pc) { |
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parents:
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|
161 int bucket_count = FlatProfiler::bucket_count_for(pc0); |
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parents:
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|
162 if (bucket_count != 0) { |
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|
163 st->bol(); |
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|
164 st->print_cr("%3.1f%% [%d]", bucket_count*100.0/total_ticks(), bucket_count); |
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parents:
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|
165 } |
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parents:
diff
changeset
|
166 } |
c7c777385a15
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parents:
diff
changeset
|
167 } |
c7c777385a15
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jrose
parents:
diff
changeset
|
168 } |
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169 |
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170 address handle_event(const char* event, address arg); |
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|
171 |
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172 outputStream* output() { return _output; } |
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173 address cur_insn() { return _cur_insn; } |
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|
174 int total_ticks() { return _total_ticks; } |
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175 void set_total_ticks(int n) { _total_ticks = n; } |
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176 const char* options() { return _option_buf; } |
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|
177 }; |
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|
178 |
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179 decode_env::decode_env(CodeBlob* code, outputStream* output) { |
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180 memset(this, 0, sizeof(*this)); |
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|
181 _output = output ? output : tty; |
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182 _code = code; |
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183 if (code != NULL && code->is_nmethod()) |
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|
184 _nm = (nmethod*) code; |
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|
185 |
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186 // by default, output pc but not bytes: |
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187 _print_pc = true; |
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188 _print_bytes = false; |
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189 _bytes_per_line = Disassembler::pd_instruction_alignment(); |
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|
190 |
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parents:
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|
191 // parse the global option string: |
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|
192 collect_options(Disassembler::pd_cpu_opts()); |
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|
193 collect_options(PrintAssemblyOptions); |
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|
194 |
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parents:
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changeset
|
195 if (strstr(options(), "hsdis-")) { |
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diff
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|
196 if (strstr(options(), "hsdis-print-raw")) |
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|
197 _print_raw = (strstr(options(), "xml") ? 2 : 1); |
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parents:
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|
198 if (strstr(options(), "hsdis-print-pc")) |
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parents:
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|
199 _print_pc = !_print_pc; |
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parents:
diff
changeset
|
200 if (strstr(options(), "hsdis-print-bytes")) |
c7c777385a15
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parents:
diff
changeset
|
201 _print_bytes = !_print_bytes; |
c7c777385a15
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parents:
diff
changeset
|
202 } |
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jrose
parents:
diff
changeset
|
203 if (strstr(options(), "help")) { |
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parents:
diff
changeset
|
204 tty->print_cr("PrintAssemblyOptions help:"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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parents:
diff
changeset
|
205 tty->print_cr(" hsdis-print-raw test plugin by requesting raw output"); |
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diff
changeset
|
206 tty->print_cr(" hsdis-print-raw-xml test plugin by requesting raw xml"); |
c7c777385a15
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parents:
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|
207 tty->print_cr(" hsdis-print-pc turn off PC printing (on by default)"); |
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parents:
diff
changeset
|
208 tty->print_cr(" hsdis-print-bytes turn on instruction byte output"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
209 tty->print_cr("combined options: %s", options()); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
210 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
211 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
212 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
213 address decode_env::handle_event(const char* event, address arg) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
214 if (match(event, "insn")) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
215 start_insn(arg); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
216 } else if (match(event, "/insn")) { |
c7c777385a15
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jrose
parents:
diff
changeset
|
217 end_insn(arg); |
c7c777385a15
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jrose
parents:
diff
changeset
|
218 } else if (match(event, "addr")) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
219 if (arg != NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
220 print_address(arg); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
221 return arg; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
222 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
223 } else if (match(event, "mach")) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
224 output()->print_cr("[Disassembling for mach='%s']", arg); |
c7c777385a15
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jrose
parents:
diff
changeset
|
225 } else if (match(event, "format bytes-per-line")) { |
c7c777385a15
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parents:
diff
changeset
|
226 _bytes_per_line = (int) (intptr_t) arg; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
227 } else { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
228 // ignore unrecognized markup |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
229 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
230 return NULL; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
231 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
232 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
233 // called by the disassembler to print out jump targets and data addresses |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
234 void decode_env::print_address(address adr) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
235 outputStream* st = _output; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
236 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
237 if (adr == NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
238 st->print("NULL"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
239 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
240 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
241 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
242 int small_num = (int)(intptr_t)adr; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
243 if ((intptr_t)adr == (intptr_t)small_num |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
244 && -1 <= small_num && small_num <= 9) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
245 st->print("%d", small_num); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
246 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
247 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
248 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
249 if (Universe::is_fully_initialized()) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
250 if (StubRoutines::contains(adr)) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
251 StubCodeDesc* desc = StubCodeDesc::desc_for(adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
252 if (desc == NULL) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
253 desc = StubCodeDesc::desc_for(adr + frame::pc_return_offset); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
254 if (desc != NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
255 st->print("Stub::%s", desc->name()); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
256 if (desc->begin() != adr) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
257 st->print("%+d 0x%p",adr - desc->begin(), adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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parents:
diff
changeset
|
258 else if (WizardMode) st->print(" " INTPTR_FORMAT, adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
259 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
260 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
261 st->print("Stub::<unknown> " INTPTR_FORMAT, adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
262 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
263 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
264 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
265 BarrierSet* bs = Universe::heap()->barrier_set(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
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|
266 if (bs->kind() == BarrierSet::CardTableModRef && |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
267 adr == (address)((CardTableModRefBS*)(bs))->byte_map_base) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
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|
268 st->print("word_map_base"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
269 if (WizardMode) st->print(" " INTPTR_FORMAT, (intptr_t)adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
270 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
271 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
272 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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diff
changeset
|
273 oop obj; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
274 if (_nm != NULL |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
275 && (obj = _nm->embeddedOop_at(cur_insn())) != NULL |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
276 && (address) obj == adr) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
277 obj->print_value_on(st); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
278 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
279 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
280 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
281 |
c7c777385a15
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jrose
parents:
diff
changeset
|
282 // Fall through to a simple numeral. |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
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|
283 st->print(INTPTR_FORMAT, (intptr_t)adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
284 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
285 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
286 void decode_env::print_insn_labels() { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
287 address p = cur_insn(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
288 outputStream* st = output(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
289 nmethod* nm = _nm; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
290 if (nm != NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
291 if (p == nm->entry_point()) st->print_cr("[Entry Point]"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
292 if (p == nm->verified_entry_point()) st->print_cr("[Verified Entry Point]"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
293 if (p == nm->exception_begin()) st->print_cr("[Exception Handler]"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
294 if (p == nm->stub_begin()) st->print_cr("[Stub Code]"); |
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295 if (p == nm->consts_begin()) st->print_cr("[Constants]"); |
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296 } |
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297 CodeBlob* cb = _code; |
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298 if (cb != NULL) { |
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299 cb->print_block_comment(st, (intptr_t)(p - cb->instructions_begin())); |
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300 } |
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301 if (_print_pc) { |
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302 st->print(" " INTPTR_FORMAT ": ", (intptr_t) p); |
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303 } |
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304 } |
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305 |
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306 void decode_env::print_insn_bytes(address pc, address pc_limit) { |
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307 outputStream* st = output(); |
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308 size_t incr = 1; |
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309 size_t perline = _bytes_per_line; |
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310 if ((size_t) Disassembler::pd_instruction_alignment() >= sizeof(int) |
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311 && !((uintptr_t)pc % sizeof(int)) |
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312 && !((uintptr_t)pc_limit % sizeof(int))) { |
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313 incr = sizeof(int); |
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314 if (perline % incr) perline += incr - (perline % incr); |
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315 } |
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316 while (pc < pc_limit) { |
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317 // tab to the desired column: |
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318 st->move_to(COMMENT_COLUMN); |
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319 address pc0 = pc; |
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320 address pc1 = pc + perline; |
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321 if (pc1 > pc_limit) pc1 = pc_limit; |
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322 for (; pc < pc1; pc += incr) { |
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323 if (pc == pc0) |
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324 st->print(BYTES_COMMENT); |
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325 else if ((uint)(pc - pc0) % sizeof(int) == 0) |
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326 st->print(" "); // put out a space on word boundaries |
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327 if (incr == sizeof(int)) |
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328 st->print("%08lx", *(int*)pc); |
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329 else st->print("%02x", (*pc)&0xFF); |
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330 } |
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331 st->cr(); |
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332 } |
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333 } |
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334 |
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335 |
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336 static void* event_to_env(void* env_pv, const char* event, void* arg) { |
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337 decode_env* env = (decode_env*) env_pv; |
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338 return env->handle_event(event, (address) arg); |
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339 } |
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340 |
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341 static int printf_to_env(void* env_pv, const char* format, ...) { |
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342 decode_env* env = (decode_env*) env_pv; |
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343 outputStream* st = env->output(); |
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344 size_t flen = strlen(format); |
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345 const char* raw = NULL; |
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346 if (flen == 0) return 0; |
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347 if (flen == 1 && format[0] == '\n') { st->bol(); return 1; } |
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348 if (flen < 2 || |
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349 strchr(format, '%') == NULL) { |
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350 raw = format; |
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351 } else if (format[0] == '%' && format[1] == '%' && |
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352 strchr(format+2, '%') == NULL) { |
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353 // happens a lot on machines with names like %foo |
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354 flen--; |
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355 raw = format+1; |
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356 } |
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357 if (raw != NULL) { |
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358 st->print_raw(raw, (int) flen); |
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359 return (int) flen; |
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360 } |
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361 va_list ap; |
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362 va_start(ap, format); |
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363 julong cnt0 = st->count(); |
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364 st->vprint(format, ap); |
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365 julong cnt1 = st->count(); |
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366 va_end(ap); |
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367 return (int)(cnt1 - cnt0); |
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368 } |
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369 |
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370 address decode_env::decode_instructions(address start, address end) { |
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371 _start = start; _end = end; |
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372 |
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373 assert((((intptr_t)start | (intptr_t)end) % Disassembler::pd_instruction_alignment() == 0), "misaligned insn addr"); |
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374 |
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375 const int show_bytes = false; // for disassembler debugging |
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376 |
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377 //_version = Disassembler::pd_cpu_version(); |
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378 |
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379 if (!Disassembler::can_decode()) { |
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380 return NULL; |
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381 } |
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382 |
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383 // decode a series of instructions and return the end of the last instruction |
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384 |
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385 if (_print_raw) { |
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386 // Print whatever the library wants to print, w/o fancy callbacks. |
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387 // This is mainly for debugging the library itself. |
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388 FILE* out = stdout; |
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389 FILE* xmlout = (_print_raw > 1 ? out : NULL); |
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390 return (address) |
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391 (*Disassembler::_decode_instructions)(start, end, |
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392 NULL, (void*) xmlout, |
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393 NULL, (void*) out, |
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394 options()); |
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395 } |
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396 |
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397 return (address) |
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398 (*Disassembler::_decode_instructions)(start, end, |
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399 &event_to_env, (void*) this, |
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400 &printf_to_env, (void*) this, |
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401 options()); |
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402 } |
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403 |
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404 |
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405 void Disassembler::decode(CodeBlob* cb, outputStream* st) { |
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406 if (!load_library()) return; |
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407 decode_env env(cb, st); |
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408 env.output()->print_cr("Decoding CodeBlob " INTPTR_FORMAT, cb); |
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409 env.decode_instructions(cb->instructions_begin(), cb->instructions_end()); |
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410 } |
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411 |
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412 |
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413 void Disassembler::decode(address start, address end, outputStream* st) { |
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414 if (!load_library()) return; |
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415 decode_env env(CodeCache::find_blob_unsafe(start), st); |
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416 env.decode_instructions(start, end); |
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417 } |
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418 |
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419 void Disassembler::decode(nmethod* nm, outputStream* st) { |
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420 if (!load_library()) return; |
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421 decode_env env(nm, st); |
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422 env.output()->print_cr("Decoding compiled method " INTPTR_FORMAT ":", nm); |
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423 env.output()->print_cr("Code:"); |
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424 |
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425 unsigned char* p = nm->instructions_begin(); |
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426 unsigned char* end = nm->instructions_end(); |
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427 |
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428 // If there has been profiling, print the buckets. |
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429 if (FlatProfiler::bucket_start_for(p) != NULL) { |
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430 unsigned char* p1 = p; |
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431 int total_bucket_count = 0; |
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432 while (p1 < end) { |
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433 unsigned char* p0 = p1; |
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434 p1 += pd_instruction_alignment(); |
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435 address bucket_pc = FlatProfiler::bucket_start_for(p1); |
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436 if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p1) |
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437 total_bucket_count += FlatProfiler::bucket_count_for(p0); |
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438 } |
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439 env.set_total_ticks(total_bucket_count); |
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440 } |
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441 |
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442 env.decode_instructions(p, end); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
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443 } |