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annotate src/share/tools/hsdis/hsdis.c @ 17795:a9becfeecd1b

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Merge
author kvn
date Wed, 22 Jan 2014 17:42:23 -0800
parents 55fb97c4c58d c9f0adfb4a8b
children 4ca6dc0799b6
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1 /*
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2 * Copyright (c) 2008, 2013, 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
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25 /* hsdis.c -- dump a range of addresses as native instructions
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26 This implements the plugin protocol required by the
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27 HotSpot PrintAssembly option.
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28 */
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29
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30 #include <config.h> /* required by bfd.h */
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31 #include <libiberty.h>
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32 #include <bfd.h>
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33 #include <dis-asm.h>
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34 #include <inttypes.h>
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35 #include <string.h>
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36 #include <errno.h>
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37 #include "hsdis.h"
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38
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39 #ifndef bool
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40 #define bool int
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41 #define true 1
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42 #define false 0
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43 #endif /*bool*/
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44
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45 /* short names for stuff in hsdis.h */
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46 typedef decode_instructions_event_callback_ftype event_callback_t;
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47 typedef decode_instructions_printf_callback_ftype printf_callback_t;
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48
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49 /* disassemble_info.application_data object */
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50 struct hsdis_app_data {
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51 /* virtual address of data */
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52 uintptr_t start_va, end_va;
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53 /* the instructions to be decoded */
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54 unsigned char* buffer;
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55 uintptr_t length;
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56 event_callback_t event_callback; void* event_stream;
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57 printf_callback_t printf_callback; void* printf_stream;
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58 bool losing;
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59 bool do_newline;
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60
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61 /* the architecture being disassembled */
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62 const char* arch_name;
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63 const bfd_arch_info_type* arch_info;
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64
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65 /* the disassembler we are going to use: */
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66 disassembler_ftype dfn;
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67 struct disassemble_info dinfo; /* the actual struct! */
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68
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69 char mach_option[64];
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70 char insn_options[256];
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71 };
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72
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73 static void* decode(struct hsdis_app_data* app_data, const char* options);
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74
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75 #define DECL_APP_DATA(dinfo) \
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76 struct hsdis_app_data* app_data = (struct hsdis_app_data*) (dinfo)->application_data
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77
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78 #define DECL_EVENT_CALLBACK(app_data) \
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79 event_callback_t event_callback = (app_data)->event_callback; \
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80 void* event_stream = (app_data)->event_stream
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81
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82 #define DECL_PRINTF_CALLBACK(app_data) \
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83 printf_callback_t printf_callback = (app_data)->printf_callback; \
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84 void* printf_stream = (app_data)->printf_stream
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87 static void print_help(struct hsdis_app_data* app_data,
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88 const char* msg, const char* arg);
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89 static void setup_app_data(struct hsdis_app_data* app_data,
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90 const char* options);
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91 static const char* format_insn_close(const char* close,
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92 disassemble_info* dinfo,
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93 char* buf, size_t bufsize);
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94
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95 void*
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96 #ifdef DLL_ENTRY
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97 DLL_ENTRY
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98 #endif
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99 decode_instructions_virtual(uintptr_t start_va, uintptr_t end_va,
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100 unsigned char* buffer, uintptr_t length,
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101 event_callback_t event_callback_arg, void* event_stream_arg,
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102 printf_callback_t printf_callback_arg, void* printf_stream_arg,
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103 const char* options, int newline) {
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104 struct hsdis_app_data app_data;
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105 memset(&app_data, 0, sizeof(app_data));
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106 app_data.start_va = start_va;
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107 app_data.end_va = end_va;
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108 app_data.buffer = buffer;
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109 app_data.length = length;
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110 app_data.event_callback = event_callback_arg;
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111 app_data.event_stream = event_stream_arg;
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112 app_data.printf_callback = printf_callback_arg;
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113 app_data.printf_stream = printf_stream_arg;
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114 app_data.do_newline = newline == 0 ? false : true;
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115
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116 return decode(&app_data, options);
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117 }
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118
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119 /* This is the compatability interface for older version of hotspot */
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120 void*
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121 #ifdef DLL_ENTRY
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122 DLL_ENTRY
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123 #endif
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124 decode_instructions(void* start_pv, void* end_pv,
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125 event_callback_t event_callback_arg, void* event_stream_arg,
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126 printf_callback_t printf_callback_arg, void* printf_stream_arg,
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127 const char* options) {
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128 decode_instructions_virtual((uintptr_t)start_pv,
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129 (uintptr_t)end_pv,
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130 (unsigned char*)start_pv,
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131 (uintptr_t)end_pv - (uintptr_t)start_pv,
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132 event_callback_arg,
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133 event_stream_arg,
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134 printf_callback_arg,
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135 printf_stream_arg,
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136 options, false);
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137 }
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138
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139 static void* decode(struct hsdis_app_data* app_data, const char* options) {
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140 setup_app_data(app_data, options);
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141 char buf[128];
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142
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143 {
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144 /* now reload everything from app_data: */
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145 DECL_EVENT_CALLBACK(app_data);
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146 DECL_PRINTF_CALLBACK(app_data);
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147 uintptr_t start = app_data->start_va;
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148 uintptr_t end = app_data->end_va;
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149 uintptr_t p = start;
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150
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151 (*event_callback)(event_stream, "insns", (void*)start);
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152
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153 (*event_callback)(event_stream, "mach name='%s'",
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154 (void*) app_data->arch_info->printable_name);
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155 if (app_data->dinfo.bytes_per_line != 0) {
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156 (*event_callback)(event_stream, "format bytes-per-line='%p'/",
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157 (void*)(intptr_t) app_data->dinfo.bytes_per_line);
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158 }
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159
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160 while (p < end && !app_data->losing) {
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161 (*event_callback)(event_stream, "insn", (void*) p);
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162
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163 /* reset certain state, so we can read it with confidence */
6782
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164 app_data->dinfo.insn_info_valid = 0;
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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165 app_data->dinfo.branch_delay_insns = 0;
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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166 app_data->dinfo.data_size = 0;
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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167 app_data->dinfo.insn_type = 0;
100
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168
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169 int size = (*app_data->dfn)((bfd_vma) p, &app_data->dinfo);
100
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170
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171 if (size > 0) p += size;
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172 else app_data->losing = true;
100
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173
6782
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174 if (!app_data->losing) {
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175 const char* insn_close = format_insn_close("/insn", &app_data->dinfo,
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176 buf, sizeof(buf));
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177 (*event_callback)(event_stream, insn_close, (void*) p);
100
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178
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179 if (app_data->do_newline) {
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diff changeset
180 /* follow each complete insn by a nice newline */
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181 (*printf_callback)(printf_stream, "\n");
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diff changeset
182 }
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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183 }
100
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184 }
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185
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186 if (app_data->losing) (*event_callback)(event_stream, "/insns", (void*) p);
100
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187 return (void*) p;
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188 }
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189 }
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190
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191 /* take the address of the function, for luck, and also test the typedef: */
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192 const decode_func_vtype decode_func_virtual_address = &decode_instructions_virtual;
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193 const decode_func_stype decode_func_address = &decode_instructions;
100
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194
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195 static const char* format_insn_close(const char* close,
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196 disassemble_info* dinfo,
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197 char* buf, size_t bufsize) {
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198 if (!dinfo->insn_info_valid)
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199 return close;
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200 enum dis_insn_type itype = dinfo->insn_type;
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201 int dsize = dinfo->data_size, delays = dinfo->branch_delay_insns;
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202 if ((itype == dis_nonbranch && (dsize | delays) == 0)
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203 || (strlen(close) + 3*20 > bufsize))
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204 return close;
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205
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206 const char* type = "unknown";
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207 switch (itype) {
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208 case dis_nonbranch: type = NULL; break;
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209 case dis_branch: type = "branch"; break;
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210 case dis_condbranch: type = "condbranch"; break;
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211 case dis_jsr: type = "jsr"; break;
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212 case dis_condjsr: type = "condjsr"; break;
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213 case dis_dref: type = "dref"; break;
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214 case dis_dref2: type = "dref2"; break;
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215 }
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216
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217 strcpy(buf, close);
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218 char* p = buf;
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219 if (type) sprintf(p += strlen(p), " type='%s'", type);
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220 if (dsize) sprintf(p += strlen(p), " dsize='%d'", dsize);
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221 if (delays) sprintf(p += strlen(p), " delay='%d'", delays);
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222 return buf;
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223 }
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224
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225 /* handler functions */
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226
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227 static int
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228 hsdis_read_memory_func(bfd_vma memaddr,
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229 bfd_byte* myaddr,
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230 unsigned int length,
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231 struct disassemble_info* dinfo) {
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232 DECL_APP_DATA(dinfo);
6782
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233 /* convert the virtual address memaddr into an address within memory buffer */
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diff changeset
234 uintptr_t offset = ((uintptr_t) memaddr) - app_data->start_va;
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235 if (offset + length > app_data->length) {
100
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236 /* read is out of bounds */
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237 return EIO;
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238 } else {
6782
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239 memcpy(myaddr, (bfd_byte*) (app_data->buffer + offset), length);
100
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240 return 0;
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241 }
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242 }
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243
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244 static void
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245 hsdis_print_address_func(bfd_vma vma, struct disassemble_info* dinfo) {
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246 /* the actual value to print: */
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247 void* addr_value = (void*) (uintptr_t) vma;
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248 DECL_APP_DATA(dinfo);
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249 DECL_EVENT_CALLBACK(app_data);
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250
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251 /* issue the event: */
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252 void* result =
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253 (*event_callback)(event_stream, "addr/", addr_value);
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254 if (result == NULL) {
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255 /* event declined */
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256 generic_print_address(vma, dinfo);
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257 }
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258 }
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diff changeset
259
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260
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261 /* configuration */
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262
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263 static void set_optional_callbacks(struct hsdis_app_data* app_data);
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264 static void parse_caller_options(struct hsdis_app_data* app_data,
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265 const char* caller_options);
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266 static const char* native_arch_name();
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267 static enum bfd_endian native_endian();
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268 static const bfd_arch_info_type* find_arch_info(const char* arch_nane);
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269 static bfd* get_native_bfd(const bfd_arch_info_type* arch_info,
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270 /* to avoid malloc: */
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271 bfd* empty_bfd, bfd_target* empty_xvec);
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272 static void init_disassemble_info_from_bfd(struct disassemble_info* dinfo,
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273 void *stream,
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diff changeset
274 fprintf_ftype fprintf_func,
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275 bfd* bfd,
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276 char* disassembler_options);
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277 static void parse_fake_insn(disassembler_ftype dfn,
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278 struct disassemble_info* dinfo);
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279
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280 static void setup_app_data(struct hsdis_app_data* app_data,
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281 const char* caller_options) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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parents:
diff changeset
282 /* Make reasonable defaults for null callbacks.
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283 A non-null stream for a null callback is assumed to be a FILE* for output.
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284 Events are rendered as XML.
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285 */
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286 set_optional_callbacks(app_data);
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287
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parents:
diff changeset
288 /* Look into caller_options for anything interesting. */
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jrose
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diff changeset
289 if (caller_options != NULL)
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diff changeset
290 parse_caller_options(app_data, caller_options);
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jrose
parents:
diff changeset
291
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diff changeset
292 /* Discover which architecture we are going to disassemble. */
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parents:
diff changeset
293 app_data->arch_name = &app_data->mach_option[0];
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diff changeset
294 if (app_data->arch_name[0] == '\0')
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
295 app_data->arch_name = native_arch_name();
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296 app_data->arch_info = find_arch_info(app_data->arch_name);
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297
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diff changeset
298 /* Make a fake bfd to hold the arch. and byteorder info. */
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diff changeset
299 struct {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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300 bfd_target empty_xvec;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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parents:
diff changeset
301 bfd empty_bfd;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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parents:
diff changeset
302 } buf;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
303 bfd* native_bfd = get_native_bfd(app_data->arch_info,
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parents:
diff changeset
304 /* to avoid malloc: */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
305 &buf.empty_bfd, &buf.empty_xvec);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
306 init_disassemble_info_from_bfd(&app_data->dinfo,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
307 app_data->printf_stream,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
308 app_data->printf_callback,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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parents:
diff changeset
309 native_bfd,
14406
c9f0adfb4a8b 8019926: PPC64 (part 106): Make hsdis build and work on Linux/PPC64
simonis
parents: 10320
diff changeset
310 /* On PowerPC we get warnings, if we pass empty options */
c9f0adfb4a8b 8019926: PPC64 (part 106): Make hsdis build and work on Linux/PPC64
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parents: 10320
diff changeset
311 (caller_options == NULL) ? NULL : app_data->insn_options);
100
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312
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diff changeset
313 /* Finish linking together the various callback blocks. */
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diff changeset
314 app_data->dinfo.application_data = (void*) app_data;
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315 app_data->dfn = disassembler(native_bfd);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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316 app_data->dinfo.print_address_func = hsdis_print_address_func;
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317 app_data->dinfo.read_memory_func = hsdis_read_memory_func;
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diff changeset
318
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diff changeset
319 if (app_data->dfn == NULL) {
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diff changeset
320 const char* bad = app_data->arch_name;
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parents:
diff changeset
321 static bool complained;
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diff changeset
322 if (bad == &app_data->mach_option[0])
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diff changeset
323 print_help(app_data, "bad mach=%s", bad);
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324 else if (!complained)
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325 print_help(app_data, "bad native mach=%s; please port hsdis to this platform", bad);
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diff changeset
326 complained = true;
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diff changeset
327 /* must bail out */
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328 app_data->losing = true;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
329 return;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
330 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
331
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
332 parse_fake_insn(app_data->dfn, &app_data->dinfo);
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
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
335
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
336 /* ignore all events, return a null */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
337 static void* null_event_callback(void* ignore_stream, const char* ignore_event, void* arg) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
338 return NULL;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
339 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
340
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
341 /* print all events as XML markup */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
342 static void* xml_event_callback(void* stream, const char* event, void* arg) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
343 FILE* fp = (FILE*) stream;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
344 #define NS_PFX "dis:"
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
345 if (event[0] != '/') {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
346 /* issue the tag, with or without a formatted argument */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
347 fprintf(fp, "<"NS_PFX);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
348 fprintf(fp, event, arg);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
349 fprintf(fp, ">");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
350 } else {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
351 ++event; /* skip slash */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
352 const char* argp = strchr(event, ' ');
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
353 if (argp == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
354 /* no arguments; just issue the closing tag */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
355 fprintf(fp, "</"NS_PFX"%s>", event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
356 } else {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
357 /* split out the closing attributes as <dis:foo_done attr='val'/> */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
358 int event_prefix = (argp - event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
359 fprintf(fp, "<"NS_PFX"%.*s_done", event_prefix, event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
360 fprintf(fp, argp, arg);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
361 fprintf(fp, "/></"NS_PFX"%.*s>", event_prefix, event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
362 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
363 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
364 return NULL;
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 static void set_optional_callbacks(struct hsdis_app_data* app_data) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
368 if (app_data->printf_callback == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
369 int (*fprintf_callback)(FILE*, const char*, ...) = &fprintf;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
370 FILE* fprintf_stream = stdout;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
371 app_data->printf_callback = (printf_callback_t) fprintf_callback;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
372 if (app_data->printf_stream == NULL)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
373 app_data->printf_stream = (void*) fprintf_stream;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
374 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
375 if (app_data->event_callback == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
376 if (app_data->event_stream == NULL)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
377 app_data->event_callback = &null_event_callback;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
378 else
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
379 app_data->event_callback = &xml_event_callback;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
380 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
381
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
382 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
383
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
384 static void parse_caller_options(struct hsdis_app_data* app_data, const char* caller_options) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
385 char* iop_base = app_data->insn_options;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
386 char* iop_limit = iop_base + sizeof(app_data->insn_options) - 1;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
387 char* iop = iop_base;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
388 const char* p;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
389 for (p = caller_options; p != NULL; ) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
390 const char* q = strchr(p, ',');
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
391 size_t plen = (q == NULL) ? strlen(p) : ((q++) - p);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
392 if (plen == 4 && strncmp(p, "help", plen) == 0) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
393 print_help(app_data, NULL, NULL);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
394 } else if (plen >= 5 && strncmp(p, "mach=", 5) == 0) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
395 char* mach_option = app_data->mach_option;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
396 size_t mach_size = sizeof(app_data->mach_option);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
397 mach_size -= 1; /*leave room for the null*/
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
398 if (plen > mach_size) plen = mach_size;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
399 strncpy(mach_option, p, plen);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
400 mach_option[plen] = '\0';
4938
de34c646c3f7 7140985: HSDIS does not handle caller options correctly
kvn
parents: 2426
diff changeset
401 } else if (plen > 6 && strncmp(p, "hsdis-", 6) == 0) {
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
402 // do not pass these to the next level
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
403 } else {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
404 /* just copy it; {i386,sparc}-dis.c might like to see it */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
405 if (iop > iop_base && iop < iop_limit) (*iop++) = ',';
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
406 if (iop + plen > iop_limit)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
407 plen = iop_limit - iop;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
408 strncpy(iop, p, plen);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
409 iop += plen;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
410 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
411 p = q;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
412 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
413 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
414
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
415 static void print_help(struct hsdis_app_data* app_data,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
416 const char* msg, const char* arg) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
417 DECL_PRINTF_CALLBACK(app_data);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
418 if (msg != NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
419 (*printf_callback)(printf_stream, "hsdis: ");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
420 (*printf_callback)(printf_stream, msg, arg);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
421 (*printf_callback)(printf_stream, "\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
422 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
423 (*printf_callback)(printf_stream, "hsdis output options:\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
424 if (printf_callback == (printf_callback_t) &fprintf)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
425 disassembler_usage((FILE*) printf_stream);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
426 else
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
427 disassembler_usage(stderr); /* better than nothing */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
428 (*printf_callback)(printf_stream, " mach=<arch> select disassembly mode\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
429 #if defined(LIBARCH_i386) || defined(LIBARCH_amd64)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
430 (*printf_callback)(printf_stream, " mach=i386 select 32-bit mode\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
431 (*printf_callback)(printf_stream, " mach=x86-64 select 64-bit mode\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
432 (*printf_callback)(printf_stream, " suffix always print instruction suffix\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
433 #endif
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
434 (*printf_callback)(printf_stream, " help print this message\n");
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
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 /* low-level bfd and arch stuff that binutils doesn't do for us */
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
parents:
diff changeset
440 static const bfd_arch_info_type* find_arch_info(const char* arch_name) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
441 const bfd_arch_info_type* arch_info = bfd_scan_arch(arch_name);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
442 if (arch_info == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
443 extern const bfd_arch_info_type bfd_default_arch_struct;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
444 arch_info = &bfd_default_arch_struct;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
445 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
446 return arch_info;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
447 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
448
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
449 static const char* native_arch_name() {
720
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
450 const char* res = NULL;
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
451 #ifdef LIBARCH_i386
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
452 res = "i386";
720
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
453 #endif
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
454 #ifdef LIBARCH_amd64
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
455 res = "i386:x86-64";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
456 #endif
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
457 #ifdef LIBARCH_sparc
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
458 res = "sparc:v8plusb";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
459 #endif
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
460 #ifdef LIBARCH_sparcv9
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
461 res = "sparc:v9b";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
462 #endif
14406
c9f0adfb4a8b 8019926: PPC64 (part 106): Make hsdis build and work on Linux/PPC64
simonis
parents: 10320
diff changeset
463 #ifdef LIBARCH_ppc64
c9f0adfb4a8b 8019926: PPC64 (part 106): Make hsdis build and work on Linux/PPC64
simonis
parents: 10320
diff changeset
464 res = "powerpc:common64";
c9f0adfb4a8b 8019926: PPC64 (part 106): Make hsdis build and work on Linux/PPC64
simonis
parents: 10320
diff changeset
465 #endif
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
466 if (res == NULL)
720
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
467 res = "architecture not set in Makefile!";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
468 return res;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
469 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
470
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
471 static enum bfd_endian native_endian() {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
472 int32_t endian_test = 'x';
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
473 if (*(const char*) &endian_test == 'x')
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
474 return BFD_ENDIAN_LITTLE;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
475 else
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
476 return BFD_ENDIAN_BIG;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
477 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
478
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
479 static bfd* get_native_bfd(const bfd_arch_info_type* arch_info,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
480 bfd* empty_bfd, bfd_target* empty_xvec) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
481 memset(empty_bfd, 0, sizeof(*empty_bfd));
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
482 memset(empty_xvec, 0, sizeof(*empty_xvec));
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
483 empty_xvec->flavour = bfd_target_unknown_flavour;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
484 empty_xvec->byteorder = native_endian();
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
485 empty_bfd->xvec = empty_xvec;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
486 empty_bfd->arch_info = arch_info;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
487 return empty_bfd;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
488 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
489
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
490 static int read_zero_data_only(bfd_vma ignore_p,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
491 bfd_byte* myaddr, unsigned int length,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
492 struct disassemble_info *ignore_info) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
493 memset(myaddr, 0, length);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
494 return 0;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
495 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
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496 static int print_to_dev_null(void* ignore_stream, const char* ignore_format, ...) {
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497 return 0;
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498 }
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499
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500 /* Prime the pump by running the selected disassembler on a null input.
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501 This forces the machine-specific disassembler to divulge invariant
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502 information like bytes_per_line.
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503 */
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504 static void parse_fake_insn(disassembler_ftype dfn,
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505 struct disassemble_info* dinfo) {
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506 typedef int (*read_memory_ftype)
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507 (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
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508 struct disassemble_info *info);
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509 read_memory_ftype read_memory_func = dinfo->read_memory_func;
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510 fprintf_ftype fprintf_func = dinfo->fprintf_func;
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511
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512 dinfo->read_memory_func = &read_zero_data_only;
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513 dinfo->fprintf_func = &print_to_dev_null;
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514 (*dfn)(0, dinfo);
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515
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516 /* put it back */
100
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517 dinfo->read_memory_func = read_memory_func;
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518 dinfo->fprintf_func = fprintf_func;
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519 }
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520
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521 static void init_disassemble_info_from_bfd(struct disassemble_info* dinfo,
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522 void *stream,
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523 fprintf_ftype fprintf_func,
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524 bfd* abfd,
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525 char* disassembler_options) {
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526 init_disassemble_info(dinfo, stream, fprintf_func);
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527
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528 dinfo->flavour = bfd_get_flavour(abfd);
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529 dinfo->arch = bfd_get_arch(abfd);
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530 dinfo->mach = bfd_get_mach(abfd);
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531 dinfo->disassembler_options = disassembler_options;
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532 dinfo->octets_per_byte = bfd_octets_per_byte (abfd);
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533 dinfo->skip_zeroes = sizeof(void*) * 2;
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534 dinfo->skip_zeroes_at_end = sizeof(void*)-1;
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535 dinfo->disassembler_needs_relocs = FALSE;
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536
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537 if (bfd_big_endian(abfd))
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538 dinfo->display_endian = dinfo->endian = BFD_ENDIAN_BIG;
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539 else if (bfd_little_endian(abfd))
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540 dinfo->display_endian = dinfo->endian = BFD_ENDIAN_LITTLE;
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541 else
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542 dinfo->endian = native_endian();
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543
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544 disassemble_init_for_target(dinfo);
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545 }