Mercurial > hg > truffle
annotate src/share/vm/compiler/disassembler.cpp @ 6800:9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
Reviewed-by: kvn
author | twisti |
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date | Mon, 24 Sep 2012 17:59:24 -0700 |
parents | b31471cdc53e |
children | f2e12eb74117 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2008, 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "code/codeCache.hpp" | |
28 #include "compiler/disassembler.hpp" | |
29 #include "gc_interface/collectedHeap.hpp" | |
30 #include "memory/cardTableModRefBS.hpp" | |
31 #include "runtime/fprofiler.hpp" | |
32 #include "runtime/handles.inline.hpp" | |
33 #include "runtime/stubCodeGenerator.hpp" | |
34 #include "runtime/stubRoutines.hpp" | |
35 #ifdef TARGET_ARCH_x86 | |
36 # include "depChecker_x86.hpp" | |
37 #endif | |
38 #ifdef TARGET_ARCH_sparc | |
39 # include "depChecker_sparc.hpp" | |
40 #endif | |
41 #ifdef TARGET_ARCH_zero | |
42 # include "depChecker_zero.hpp" | |
43 #endif | |
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44 #ifdef TARGET_ARCH_arm |
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45 # include "depChecker_arm.hpp" |
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46 #endif |
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47 #ifdef TARGET_ARCH_ppc |
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48 # include "depChecker_ppc.hpp" |
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49 #endif |
1972 | 50 #ifdef SHARK |
51 #include "shark/sharkEntry.hpp" | |
52 #endif | |
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53 |
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54 void* Disassembler::_library = NULL; |
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55 bool Disassembler::_tried_to_load_library = false; |
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56 |
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57 // This routine is in the shared library: |
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58 Disassembler::decode_func Disassembler::_decode_instructions = NULL; |
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59 |
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60 static const char hsdis_library_name[] = "hsdis-"HOTSPOT_LIB_ARCH; |
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61 static const char decode_instructions_name[] = "decode_instructions"; |
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62 |
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63 #define COMMENT_COLUMN 40 LP64_ONLY(+8) /*could be an option*/ |
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64 #define BYTES_COMMENT ";..." /* funky byte display comment */ |
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65 |
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66 bool Disassembler::load_library() { |
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67 if (_decode_instructions != NULL) { |
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68 // Already succeeded. |
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69 return true; |
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70 } |
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71 if (_tried_to_load_library) { |
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72 // Do not try twice. |
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73 // To force retry in debugger: assign _tried_to_load_library=0 |
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74 return false; |
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75 } |
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76 // Try to load it. |
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77 char ebuf[1024]; |
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78 char buf[JVM_MAXPATHLEN]; |
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79 os::jvm_path(buf, sizeof(buf)); |
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80 int jvm_offset = -1; |
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81 int lib_offset = -1; |
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82 { |
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83 // Match "jvm[^/]*" in jvm_path. |
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84 const char* base = buf; |
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85 const char* p = strrchr(buf, '/'); |
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86 if (p != NULL) lib_offset = p - base + 1; |
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87 p = strstr(p ? p : base, "jvm"); |
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88 if (p != NULL) jvm_offset = p - base; |
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89 } |
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90 // Find the disassembler shared library. |
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91 // Search for several paths derived from libjvm, in this order: |
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92 // 1. <home>/jre/lib/<arch>/<vm>/libhsdis-<arch>.so (for compatibility) |
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93 // 2. <home>/jre/lib/<arch>/<vm>/hsdis-<arch>.so |
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94 // 3. <home>/jre/lib/<arch>/hsdis-<arch>.so |
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95 // 4. hsdis-<arch>.so (using LD_LIBRARY_PATH) |
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96 if (jvm_offset >= 0) { |
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97 // 1. <home>/jre/lib/<arch>/<vm>/libhsdis-<arch>.so |
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98 strcpy(&buf[jvm_offset], hsdis_library_name); |
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99 strcat(&buf[jvm_offset], os::dll_file_extension()); |
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100 _library = os::dll_load(buf, ebuf, sizeof ebuf); |
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101 if (_library == NULL) { |
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102 // 2. <home>/jre/lib/<arch>/<vm>/hsdis-<arch>.so |
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103 strcpy(&buf[lib_offset], hsdis_library_name); |
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104 strcat(&buf[lib_offset], os::dll_file_extension()); |
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105 _library = os::dll_load(buf, ebuf, sizeof ebuf); |
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106 } |
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107 if (_library == NULL) { |
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108 // 3. <home>/jre/lib/<arch>/hsdis-<arch>.so |
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109 buf[lib_offset - 1] = '\0'; |
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110 const char* p = strrchr(buf, '/'); |
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111 if (p != NULL) { |
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112 lib_offset = p - buf + 1; |
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113 strcpy(&buf[lib_offset], hsdis_library_name); |
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114 strcat(&buf[lib_offset], os::dll_file_extension()); |
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115 _library = os::dll_load(buf, ebuf, sizeof ebuf); |
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116 } |
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117 } |
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118 } |
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119 if (_library == NULL) { |
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120 // 4. hsdis-<arch>.so (using LD_LIBRARY_PATH) |
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121 strcpy(&buf[0], hsdis_library_name); |
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122 strcat(&buf[0], os::dll_file_extension()); |
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123 _library = os::dll_load(buf, ebuf, sizeof ebuf); |
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124 } |
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125 if (_library != NULL) { |
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126 _decode_instructions = CAST_TO_FN_PTR(Disassembler::decode_func, |
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127 os::dll_lookup(_library, decode_instructions_name)); |
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128 } |
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129 _tried_to_load_library = true; |
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130 if (_decode_instructions == NULL) { |
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131 tty->print_cr("Could not load %s; %s; %s", buf, |
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132 ((_library != NULL) |
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133 ? "entry point is missing" |
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134 : (WizardMode || PrintMiscellaneous) |
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135 ? (const char*)ebuf |
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136 : "library not loadable"), |
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137 "PrintAssembly is disabled"); |
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138 return false; |
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139 } |
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140 |
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141 // Success. |
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142 tty->print_cr("Loaded disassembler from %s", buf); |
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143 return true; |
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144 } |
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145 |
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146 |
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147 class decode_env { |
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148 private: |
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149 nmethod* _nm; |
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150 CodeBlob* _code; |
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151 CodeComments _comments; |
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152 outputStream* _output; |
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153 address _start, _end; |
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154 |
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155 char _option_buf[512]; |
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156 char _print_raw; |
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157 bool _print_pc; |
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158 bool _print_bytes; |
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159 address _cur_insn; |
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160 int _total_ticks; |
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161 int _bytes_per_line; // arch-specific formatting option |
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162 |
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163 static bool match(const char* event, const char* tag) { |
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164 size_t taglen = strlen(tag); |
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165 if (strncmp(event, tag, taglen) != 0) |
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166 return false; |
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167 char delim = event[taglen]; |
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168 return delim == '\0' || delim == ' ' || delim == '/' || delim == '='; |
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169 } |
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170 |
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171 void collect_options(const char* p) { |
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172 if (p == NULL || p[0] == '\0') return; |
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173 size_t opt_so_far = strlen(_option_buf); |
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174 if (opt_so_far + 1 + strlen(p) + 1 > sizeof(_option_buf)) return; |
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175 char* fillp = &_option_buf[opt_so_far]; |
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176 if (opt_so_far > 0) *fillp++ = ','; |
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177 strcat(fillp, p); |
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178 // replace white space by commas: |
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179 char* q = fillp; |
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180 while ((q = strpbrk(q, " \t\n")) != NULL) |
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181 *q++ = ','; |
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182 // Note that multiple PrintAssemblyOptions flags accumulate with \n, |
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183 // which we want to be changed to a comma... |
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184 } |
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185 |
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186 void print_insn_labels(); |
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187 void print_insn_bytes(address pc0, address pc); |
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188 void print_address(address value); |
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189 |
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190 public: |
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191 decode_env(CodeBlob* code, outputStream* output, CodeComments c = CodeComments()); |
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192 |
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193 address decode_instructions(address start, address end); |
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194 |
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195 void start_insn(address pc) { |
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196 _cur_insn = pc; |
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197 output()->bol(); |
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198 print_insn_labels(); |
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199 } |
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200 |
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201 void end_insn(address pc) { |
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202 address pc0 = cur_insn(); |
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203 outputStream* st = output(); |
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204 if (_print_bytes && pc > pc0) |
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205 print_insn_bytes(pc0, pc); |
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206 if (_nm != NULL) { |
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207 _nm->print_code_comment_on(st, COMMENT_COLUMN, pc0, pc); |
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208 // this calls reloc_string_for which calls oop::print_value_on |
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209 } |
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210 |
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211 // Output pc bucket ticks if we have any |
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212 if (total_ticks() != 0) { |
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213 address bucket_pc = FlatProfiler::bucket_start_for(pc); |
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214 if (bucket_pc != NULL && bucket_pc > pc0 && bucket_pc <= pc) { |
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215 int bucket_count = FlatProfiler::bucket_count_for(pc0); |
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216 if (bucket_count != 0) { |
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217 st->bol(); |
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218 st->print_cr("%3.1f%% [%d]", bucket_count*100.0/total_ticks(), bucket_count); |
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219 } |
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220 } |
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221 } |
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222 } |
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223 |
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224 address handle_event(const char* event, address arg); |
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225 |
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226 outputStream* output() { return _output; } |
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227 address cur_insn() { return _cur_insn; } |
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228 int total_ticks() { return _total_ticks; } |
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229 void set_total_ticks(int n) { _total_ticks = n; } |
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230 const char* options() { return _option_buf; } |
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231 }; |
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232 |
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233 decode_env::decode_env(CodeBlob* code, outputStream* output, CodeComments c) { |
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234 memset(this, 0, sizeof(*this)); |
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235 _output = output ? output : tty; |
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236 _code = code; |
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237 if (code != NULL && code->is_nmethod()) |
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238 _nm = (nmethod*) code; |
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239 _comments.assign(c); |
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240 |
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241 // by default, output pc but not bytes: |
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242 _print_pc = true; |
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243 _print_bytes = false; |
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244 _bytes_per_line = Disassembler::pd_instruction_alignment(); |
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245 |
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246 // parse the global option string: |
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247 collect_options(Disassembler::pd_cpu_opts()); |
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248 collect_options(PrintAssemblyOptions); |
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249 |
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250 if (strstr(options(), "hsdis-")) { |
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251 if (strstr(options(), "hsdis-print-raw")) |
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252 _print_raw = (strstr(options(), "xml") ? 2 : 1); |
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253 if (strstr(options(), "hsdis-print-pc")) |
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254 _print_pc = !_print_pc; |
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255 if (strstr(options(), "hsdis-print-bytes")) |
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256 _print_bytes = !_print_bytes; |
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257 } |
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258 if (strstr(options(), "help")) { |
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259 tty->print_cr("PrintAssemblyOptions help:"); |
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260 tty->print_cr(" hsdis-print-raw test plugin by requesting raw output"); |
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261 tty->print_cr(" hsdis-print-raw-xml test plugin by requesting raw xml"); |
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262 tty->print_cr(" hsdis-print-pc turn off PC printing (on by default)"); |
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263 tty->print_cr(" hsdis-print-bytes turn on instruction byte output"); |
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264 tty->print_cr("combined options: %s", options()); |
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265 } |
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266 } |
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267 |
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268 address decode_env::handle_event(const char* event, address arg) { |
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269 if (match(event, "insn")) { |
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270 start_insn(arg); |
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271 } else if (match(event, "/insn")) { |
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272 end_insn(arg); |
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273 } else if (match(event, "addr")) { |
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274 if (arg != NULL) { |
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275 print_address(arg); |
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276 return arg; |
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277 } |
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278 } else if (match(event, "mach")) { |
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279 static char buffer[32] = { 0, }; |
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280 if (strcmp(buffer, (const char*)arg) != 0 || |
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281 strlen((const char*)arg) > sizeof(buffer) - 1) { |
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282 // Only print this when the mach changes |
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283 strncpy(buffer, (const char*)arg, sizeof(buffer) - 1); |
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284 output()->print_cr("[Disassembling for mach='%s']", arg); |
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285 } |
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286 } else if (match(event, "format bytes-per-line")) { |
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287 _bytes_per_line = (int) (intptr_t) arg; |
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288 } else { |
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289 // ignore unrecognized markup |
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290 } |
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291 return NULL; |
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292 } |
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293 |
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294 // called by the disassembler to print out jump targets and data addresses |
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6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
295 void decode_env::print_address(address adr) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
296 outputStream* st = _output; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
297 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
298 if (adr == NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
299 st->print("NULL"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
300 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
301 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
302 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
303 int small_num = (int)(intptr_t)adr; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
304 if ((intptr_t)adr == (intptr_t)small_num |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
305 && -1 <= small_num && small_num <= 9) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
306 st->print("%d", small_num); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
307 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
308 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
309 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
310 if (Universe::is_fully_initialized()) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
311 if (StubRoutines::contains(adr)) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
312 StubCodeDesc* desc = StubCodeDesc::desc_for(adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
313 if (desc == NULL) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
314 desc = StubCodeDesc::desc_for(adr + frame::pc_return_offset); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
315 if (desc != NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
316 st->print("Stub::%s", desc->name()); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
317 if (desc->begin() != adr) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
318 st->print("%+d 0x%p",adr - desc->begin(), adr); |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
2426
diff
changeset
|
319 else if (WizardMode) st->print(" " PTR_FORMAT, adr); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
320 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
321 } |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
2426
diff
changeset
|
322 st->print("Stub::<unknown> " PTR_FORMAT, adr); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
323 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
324 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
325 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
326 BarrierSet* bs = Universe::heap()->barrier_set(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
327 if (bs->kind() == BarrierSet::CardTableModRef && |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
328 adr == (address)((CardTableModRefBS*)(bs))->byte_map_base) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
329 st->print("word_map_base"); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
330 if (WizardMode) st->print(" " INTPTR_FORMAT, (intptr_t)adr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
331 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
332 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
333 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
334 oop obj; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
335 if (_nm != NULL |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
336 && (obj = _nm->embeddedOop_at(cur_insn())) != NULL |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
337 && (address) obj == adr |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
338 && Universe::heap()->is_in(obj) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
339 && Universe::heap()->is_in(obj->klass())) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
340 julong c = st->count(); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
341 obj->print_value_on(st); |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
342 if (st->count() == c) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
343 // No output. (Can happen in product builds.) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
344 st->print("(a %s)", Klass::cast(obj->klass())->external_name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
345 } |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
346 return; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
347 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
348 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
349 |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
2426
diff
changeset
|
350 // Fall through to a simple (hexadecimal) numeral. |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
2426
diff
changeset
|
351 st->print(PTR_FORMAT, adr); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
352 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
353 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
354 void decode_env::print_insn_labels() { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
355 address p = cur_insn(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
356 outputStream* st = output(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
357 CodeBlob* cb = _code; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
358 if (cb != NULL) { |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
100
diff
changeset
|
359 cb->print_block_comment(st, p); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
360 } |
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
parents:
3794
diff
changeset
|
361 _comments.print_block_comment(st, (intptr_t)(p - _start)); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
362 if (_print_pc) { |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
2426
diff
changeset
|
363 st->print(" " PTR_FORMAT ": ", p); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
364 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
365 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
366 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
367 void decode_env::print_insn_bytes(address pc, address pc_limit) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
368 outputStream* st = output(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
369 size_t incr = 1; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
370 size_t perline = _bytes_per_line; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
371 if ((size_t) Disassembler::pd_instruction_alignment() >= sizeof(int) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
372 && !((uintptr_t)pc % sizeof(int)) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
373 && !((uintptr_t)pc_limit % sizeof(int))) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
374 incr = sizeof(int); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
375 if (perline % incr) perline += incr - (perline % incr); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
376 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
377 while (pc < pc_limit) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
378 // tab to the desired column: |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
379 st->move_to(COMMENT_COLUMN); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
380 address pc0 = pc; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
381 address pc1 = pc + perline; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
382 if (pc1 > pc_limit) pc1 = pc_limit; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
383 for (; pc < pc1; pc += incr) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
384 if (pc == pc0) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
385 st->print(BYTES_COMMENT); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
386 else if ((uint)(pc - pc0) % sizeof(int) == 0) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
387 st->print(" "); // put out a space on word boundaries |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
388 if (incr == sizeof(int)) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
389 st->print("%08lx", *(int*)pc); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
390 else st->print("%02x", (*pc)&0xFF); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
391 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
392 st->cr(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
393 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
394 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
395 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
396 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
397 static void* event_to_env(void* env_pv, const char* event, void* arg) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
398 decode_env* env = (decode_env*) env_pv; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
399 return env->handle_event(event, (address) arg); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
400 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
401 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
402 static int printf_to_env(void* env_pv, const char* format, ...) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
403 decode_env* env = (decode_env*) env_pv; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
404 outputStream* st = env->output(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
405 size_t flen = strlen(format); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
406 const char* raw = NULL; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
407 if (flen == 0) return 0; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
408 if (flen == 1 && format[0] == '\n') { st->bol(); return 1; } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
409 if (flen < 2 || |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
410 strchr(format, '%') == NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
411 raw = format; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
412 } else if (format[0] == '%' && format[1] == '%' && |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
413 strchr(format+2, '%') == NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
414 // happens a lot on machines with names like %foo |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
415 flen--; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
416 raw = format+1; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
417 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
418 if (raw != NULL) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
419 st->print_raw(raw, (int) flen); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
420 return (int) flen; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
421 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
422 va_list ap; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
423 va_start(ap, format); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
424 julong cnt0 = st->count(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
425 st->vprint(format, ap); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
426 julong cnt1 = st->count(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
427 va_end(ap); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
428 return (int)(cnt1 - cnt0); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
429 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
430 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
431 address decode_env::decode_instructions(address start, address end) { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
432 _start = start; _end = end; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
433 |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
434 assert(((((intptr_t)start | (intptr_t)end) % Disassembler::pd_instruction_alignment()) == 0), "misaligned insn addr"); |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
435 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
436 const int show_bytes = false; // for disassembler debugging |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
437 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
438 //_version = Disassembler::pd_cpu_version(); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff
changeset
|
439 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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440 if (!Disassembler::can_decode()) { |
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441 return NULL; |
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442 } |
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443 |
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444 // decode a series of instructions and return the end of the last instruction |
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445 |
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446 if (_print_raw) { |
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447 // Print whatever the library wants to print, w/o fancy callbacks. |
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448 // This is mainly for debugging the library itself. |
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449 FILE* out = stdout; |
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450 FILE* xmlout = (_print_raw > 1 ? out : NULL); |
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451 return (address) |
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452 (*Disassembler::_decode_instructions)(start, end, |
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453 NULL, (void*) xmlout, |
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454 NULL, (void*) out, |
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455 options()); |
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456 } |
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457 |
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458 return (address) |
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459 (*Disassembler::_decode_instructions)(start, end, |
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460 &event_to_env, (void*) this, |
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461 &printf_to_env, (void*) this, |
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462 options()); |
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463 } |
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464 |
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465 |
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466 void Disassembler::decode(CodeBlob* cb, outputStream* st) { |
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467 if (!load_library()) return; |
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468 decode_env env(cb, st); |
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469 env.output()->print_cr("Decoding CodeBlob " PTR_FORMAT, cb); |
1748 | 470 env.decode_instructions(cb->code_begin(), cb->code_end()); |
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471 } |
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472 |
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473 void Disassembler::decode(address start, address end, outputStream* st, CodeComments c) { |
100
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474 if (!load_library()) return; |
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475 decode_env env(CodeCache::find_blob_unsafe(start), st, c); |
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476 env.decode_instructions(start, end); |
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477 } |
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478 |
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479 void Disassembler::decode(nmethod* nm, outputStream* st) { |
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480 if (!load_library()) return; |
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481 decode_env env(nm, st); |
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482 env.output()->print_cr("Decoding compiled method " PTR_FORMAT ":", nm); |
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483 env.output()->print_cr("Code:"); |
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484 |
1692 | 485 #ifdef SHARK |
1748 | 486 SharkEntry* entry = (SharkEntry *) nm->code_begin(); |
487 unsigned char* p = entry->code_start(); | |
1692 | 488 unsigned char* end = entry->code_limit(); |
489 #else | |
1748 | 490 unsigned char* p = nm->code_begin(); |
491 unsigned char* end = nm->code_end(); | |
1692 | 492 #endif // SHARK |
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493 |
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494 // If there has been profiling, print the buckets. |
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495 if (FlatProfiler::bucket_start_for(p) != NULL) { |
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496 unsigned char* p1 = p; |
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497 int total_bucket_count = 0; |
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498 while (p1 < end) { |
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499 unsigned char* p0 = p1; |
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500 p1 += pd_instruction_alignment(); |
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501 address bucket_pc = FlatProfiler::bucket_start_for(p1); |
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502 if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p1) |
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503 total_bucket_count += FlatProfiler::bucket_count_for(p0); |
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504 } |
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505 env.set_total_ticks(total_bucket_count); |
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506 } |
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507 |
2008 | 508 // Print constant table. |
509 if (nm->consts_size() > 0) { | |
510 nm->print_nmethod_labels(env.output(), nm->consts_begin()); | |
511 int offset = 0; | |
512 for (address p = nm->consts_begin(); p < nm->consts_end(); p += 4, offset += 4) { | |
513 if ((offset % 8) == 0) { | |
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514 env.output()->print_cr(" " PTR_FORMAT " (offset: %4d): " PTR32_FORMAT " " PTR64_FORMAT, p, offset, *((int32_t*) p), *((int64_t*) p)); |
2008 | 515 } else { |
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516 env.output()->print_cr(" " PTR_FORMAT " (offset: %4d): " PTR32_FORMAT, p, offset, *((int32_t*) p)); |
2008 | 517 } |
518 } | |
519 } | |
520 | |
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521 env.decode_instructions(p, end); |
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522 } |