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annotate src/share/tools/hsdis/hsdis.c @ 6933:3d701c802d01

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8000489: older builds of hsdis don't work anymore after 6879063 Summary: The old function not defined properly, need a definition for export in dll. Also changes made to let new jvm work with old hsdis. Reviewed-by: jrose, sspitsyn, kmo Contributed-by: yumin.qi@oracle.com
author minqi
date Fri, 02 Nov 2012 13:30:47 -0700
parents 5a98bf7d847b
children ec922e5c545a
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1 /*
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2 * Copyright (c) 2008, 2012, 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 <libiberty.h>
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31 #include <bfd.h>
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32 #include <dis-asm.h>
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33 #include <inttypes.h>
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34 #include <string.h>
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35 #include <errno.h>
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36 #include "hsdis.h"
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37
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38 #ifndef bool
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39 #define bool int
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40 #define true 1
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41 #define false 0
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42 #endif /*bool*/
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43
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44 /* short names for stuff in hsdis.h */
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45 typedef decode_instructions_event_callback_ftype event_callback_t;
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46 typedef decode_instructions_printf_callback_ftype printf_callback_t;
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47
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48 /* disassemble_info.application_data object */
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49 struct hsdis_app_data {
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50 /* virtual address of data */
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51 uintptr_t start_va, end_va;
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52 /* the instructions to be decoded */
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53 unsigned char* buffer;
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54 uintptr_t length;
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55 event_callback_t event_callback; void* event_stream;
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56 printf_callback_t printf_callback; void* printf_stream;
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57 bool losing;
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58 bool do_newline;
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59
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60 /* the architecture being disassembled */
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61 const char* arch_name;
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62 const bfd_arch_info_type* arch_info;
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63
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64 /* the disassembler we are going to use: */
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65 disassembler_ftype dfn;
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66 struct disassemble_info dinfo; /* the actual struct! */
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67
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68 char mach_option[64];
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69 char insn_options[256];
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70 };
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71
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72 static void* decode(struct hsdis_app_data* app_data, const char* options);
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73
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74 #define DECL_APP_DATA(dinfo) \
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75 struct hsdis_app_data* app_data = (struct hsdis_app_data*) (dinfo)->application_data
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76
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77 #define DECL_EVENT_CALLBACK(app_data) \
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78 event_callback_t event_callback = (app_data)->event_callback; \
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79 void* event_stream = (app_data)->event_stream
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80
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81 #define DECL_PRINTF_CALLBACK(app_data) \
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82 printf_callback_t printf_callback = (app_data)->printf_callback; \
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83 void* printf_stream = (app_data)->printf_stream
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86 static void print_help(struct hsdis_app_data* app_data,
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87 const char* msg, const char* arg);
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88 static void setup_app_data(struct hsdis_app_data* app_data,
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89 const char* options);
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90 static const char* format_insn_close(const char* close,
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91 disassemble_info* dinfo,
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92 char* buf, size_t bufsize);
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93
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94 void*
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95 #ifdef DLL_ENTRY
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96 DLL_ENTRY
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97 #endif
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98 decode_instructions_virtual(uintptr_t start_va, uintptr_t end_va,
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99 unsigned char* buffer, uintptr_t length,
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100 event_callback_t event_callback_arg, void* event_stream_arg,
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101 printf_callback_t printf_callback_arg, void* printf_stream_arg,
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102 const char* options, int newline) {
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103 struct hsdis_app_data app_data;
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104 memset(&app_data, 0, sizeof(app_data));
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105 app_data.start_va = start_va;
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106 app_data.end_va = end_va;
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107 app_data.buffer = buffer;
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108 app_data.length = length;
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109 app_data.event_callback = event_callback_arg;
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110 app_data.event_stream = event_stream_arg;
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111 app_data.printf_callback = printf_callback_arg;
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112 app_data.printf_stream = printf_stream_arg;
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113 app_data.do_newline = newline == 0 ? false : true;
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114
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115 return decode(&app_data, options);
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116 }
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117
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118 /* This is the compatability interface for older version of hotspot */
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119 void*
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120 #ifdef DLL_ENTRY
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121 DLL_ENTRY
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122 #endif
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123 decode_instructions(void* start_pv, void* end_pv,
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124 event_callback_t event_callback_arg, void* event_stream_arg,
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125 printf_callback_t printf_callback_arg, void* printf_stream_arg,
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126 const char* options) {
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127 decode_instructions_virtual((uintptr_t)start_pv,
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128 (uintptr_t)end_pv,
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129 (unsigned char*)start_pv,
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130 (uintptr_t)end_pv - (uintptr_t)start_pv,
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131 event_callback_arg,
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132 event_stream_arg,
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133 printf_callback_arg,
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134 printf_stream_arg,
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135 options, false);
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136 }
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137
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138 static void* decode(struct hsdis_app_data* app_data, const char* options) {
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139 setup_app_data(app_data, options);
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140 char buf[128];
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141
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142 {
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143 /* now reload everything from app_data: */
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144 DECL_EVENT_CALLBACK(app_data);
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145 DECL_PRINTF_CALLBACK(app_data);
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146 uintptr_t start = app_data->start_va;
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147 uintptr_t end = app_data->end_va;
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148 uintptr_t p = start;
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149
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150 (*event_callback)(event_stream, "insns", (void*)start);
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151
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152 (*event_callback)(event_stream, "mach name='%s'",
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153 (void*) app_data->arch_info->printable_name);
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154 if (app_data->dinfo.bytes_per_line != 0) {
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155 (*event_callback)(event_stream, "format bytes-per-line='%p'/",
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156 (void*)(intptr_t) app_data->dinfo.bytes_per_line);
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157 }
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158
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159 while (p < end && !app_data->losing) {
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160 (*event_callback)(event_stream, "insn", (void*) p);
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161
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162 /* reset certain state, so we can read it with confidence */
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diff changeset
163 app_data->dinfo.insn_info_valid = 0;
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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diff changeset
164 app_data->dinfo.branch_delay_insns = 0;
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165 app_data->dinfo.data_size = 0;
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166 app_data->dinfo.insn_type = 0;
100
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167
6782
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168 int size = (*app_data->dfn)((bfd_vma) p, &app_data->dinfo);
100
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169
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170 if (size > 0) p += size;
6782
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171 else app_data->losing = true;
100
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172
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173 if (!app_data->losing) {
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diff changeset
174 const char* insn_close = format_insn_close("/insn", &app_data->dinfo,
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175 buf, sizeof(buf));
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176 (*event_callback)(event_stream, insn_close, (void*) p);
100
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177
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diff changeset
178 if (app_data->do_newline) {
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diff changeset
179 /* follow each complete insn by a nice newline */
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180 (*printf_callback)(printf_stream, "\n");
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181 }
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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182 }
100
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183 }
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184
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185 if (app_data->losing) (*event_callback)(event_stream, "/insns", (void*) p);
100
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186 return (void*) p;
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187 }
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188 }
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189
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190 /* take the address of the function, for luck, and also test the typedef: */
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191 const decode_func_vtype decode_func_virtual_address = &decode_instructions_virtual;
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192 const decode_func_stype decode_func_address = &decode_instructions;
100
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193
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194 static const char* format_insn_close(const char* close,
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195 disassemble_info* dinfo,
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196 char* buf, size_t bufsize) {
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197 if (!dinfo->insn_info_valid)
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198 return close;
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199 enum dis_insn_type itype = dinfo->insn_type;
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200 int dsize = dinfo->data_size, delays = dinfo->branch_delay_insns;
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201 if ((itype == dis_nonbranch && (dsize | delays) == 0)
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202 || (strlen(close) + 3*20 > bufsize))
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203 return close;
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204
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205 const char* type = "unknown";
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206 switch (itype) {
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207 case dis_nonbranch: type = NULL; break;
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208 case dis_branch: type = "branch"; break;
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209 case dis_condbranch: type = "condbranch"; break;
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210 case dis_jsr: type = "jsr"; break;
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211 case dis_condjsr: type = "condjsr"; break;
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212 case dis_dref: type = "dref"; break;
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213 case dis_dref2: type = "dref2"; break;
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214 }
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215
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216 strcpy(buf, close);
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217 char* p = buf;
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218 if (type) sprintf(p += strlen(p), " type='%s'", type);
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219 if (dsize) sprintf(p += strlen(p), " dsize='%d'", dsize);
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220 if (delays) sprintf(p += strlen(p), " delay='%d'", delays);
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221 return buf;
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222 }
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223
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224 /* handler functions */
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225
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226 static int
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227 hsdis_read_memory_func(bfd_vma memaddr,
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228 bfd_byte* myaddr,
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229 unsigned int length,
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230 struct disassemble_info* dinfo) {
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231 DECL_APP_DATA(dinfo);
6782
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232 /* convert the virtual address memaddr into an address within memory buffer */
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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233 uintptr_t offset = ((uintptr_t) memaddr) - app_data->start_va;
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diff changeset
234 if (offset + length > app_data->length) {
100
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235 /* read is out of bounds */
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236 return EIO;
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237 } else {
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
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238 memcpy(myaddr, (bfd_byte*) (app_data->buffer + offset), length);
100
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239 return 0;
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240 }
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241 }
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242
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243 static void
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244 hsdis_print_address_func(bfd_vma vma, struct disassemble_info* dinfo) {
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245 /* the actual value to print: */
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246 void* addr_value = (void*) (uintptr_t) vma;
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247 DECL_APP_DATA(dinfo);
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248 DECL_EVENT_CALLBACK(app_data);
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249
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250 /* issue the event: */
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diff changeset
251 void* result =
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252 (*event_callback)(event_stream, "addr/", addr_value);
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253 if (result == NULL) {
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254 /* event declined */
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255 generic_print_address(vma, dinfo);
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256 }
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257 }
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diff changeset
258
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259
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diff changeset
260 /* configuration */
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261
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262 static void set_optional_callbacks(struct hsdis_app_data* app_data);
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263 static void parse_caller_options(struct hsdis_app_data* app_data,
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264 const char* caller_options);
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diff changeset
265 static const char* native_arch_name();
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diff changeset
266 static enum bfd_endian native_endian();
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267 static const bfd_arch_info_type* find_arch_info(const char* arch_nane);
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268 static bfd* get_native_bfd(const bfd_arch_info_type* arch_info,
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269 /* to avoid malloc: */
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diff changeset
270 bfd* empty_bfd, bfd_target* empty_xvec);
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271 static void init_disassemble_info_from_bfd(struct disassemble_info* dinfo,
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272 void *stream,
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273 fprintf_ftype fprintf_func,
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274 bfd* bfd,
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diff changeset
275 char* disassembler_options);
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276 static void parse_fake_insn(disassembler_ftype dfn,
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277 struct disassemble_info* dinfo);
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278
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diff changeset
279 static void setup_app_data(struct hsdis_app_data* app_data,
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280 const char* caller_options) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
281 /* Make reasonable defaults for null callbacks.
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282 A non-null stream for a null callback is assumed to be a FILE* for output.
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283 Events are rendered as XML.
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284 */
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285 set_optional_callbacks(app_data);
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diff changeset
286
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parents:
diff changeset
287 /* Look into caller_options for anything interesting. */
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jrose
parents:
diff changeset
288 if (caller_options != NULL)
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289 parse_caller_options(app_data, caller_options);
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290
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diff changeset
291 /* Discover which architecture we are going to disassemble. */
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parents:
diff changeset
292 app_data->arch_name = &app_data->mach_option[0];
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jrose
parents:
diff changeset
293 if (app_data->arch_name[0] == '\0')
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diff changeset
294 app_data->arch_name = native_arch_name();
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295 app_data->arch_info = find_arch_info(app_data->arch_name);
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diff changeset
296
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parents:
diff changeset
297 /* Make a fake bfd to hold the arch. and byteorder info. */
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parents:
diff changeset
298 struct {
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299 bfd_target empty_xvec;
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parents:
diff changeset
300 bfd empty_bfd;
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parents:
diff changeset
301 } buf;
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diff changeset
302 bfd* native_bfd = get_native_bfd(app_data->arch_info,
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parents:
diff changeset
303 /* to avoid malloc: */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
304 &buf.empty_bfd, &buf.empty_xvec);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
305 init_disassemble_info_from_bfd(&app_data->dinfo,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
306 app_data->printf_stream,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
307 app_data->printf_callback,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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parents:
diff changeset
308 native_bfd,
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diff changeset
309 app_data->insn_options);
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parents:
diff changeset
310
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parents:
diff changeset
311 /* Finish linking together the various callback blocks. */
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diff changeset
312 app_data->dinfo.application_data = (void*) app_data;
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313 app_data->dfn = disassembler(native_bfd);
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diff changeset
314 app_data->dinfo.print_address_func = hsdis_print_address_func;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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315 app_data->dinfo.read_memory_func = hsdis_read_memory_func;
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diff changeset
316
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diff changeset
317 if (app_data->dfn == NULL) {
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diff changeset
318 const char* bad = app_data->arch_name;
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diff changeset
319 static bool complained;
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diff changeset
320 if (bad == &app_data->mach_option[0])
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diff changeset
321 print_help(app_data, "bad mach=%s", bad);
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parents:
diff changeset
322 else if (!complained)
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323 print_help(app_data, "bad native mach=%s; please port hsdis to this platform", bad);
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diff changeset
324 complained = true;
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parents:
diff changeset
325 /* must bail out */
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diff changeset
326 app_data->losing = true;
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diff changeset
327 return;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
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diff changeset
328 }
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diff changeset
329
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
330 parse_fake_insn(app_data->dfn, &app_data->dinfo);
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
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 /* ignore all events, return a null */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
335 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
336 return NULL;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
337 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
338
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
339 /* print all events as XML markup */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
340 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
341 FILE* fp = (FILE*) stream;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
342 #define NS_PFX "dis:"
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
343 if (event[0] != '/') {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
344 /* issue the tag, with or without a formatted argument */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
345 fprintf(fp, "<"NS_PFX);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
346 fprintf(fp, event, arg);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
347 fprintf(fp, ">");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
348 } else {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
349 ++event; /* skip slash */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
350 const char* argp = strchr(event, ' ');
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
351 if (argp == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
352 /* no arguments; just issue the closing tag */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
353 fprintf(fp, "</"NS_PFX"%s>", event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
354 } else {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
355 /* 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
356 int event_prefix = (argp - event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
357 fprintf(fp, "<"NS_PFX"%.*s_done", event_prefix, event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
358 fprintf(fp, argp, arg);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
359 fprintf(fp, "/></"NS_PFX"%.*s>", event_prefix, event);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
360 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
361 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
362 return NULL;
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
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
365 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
366 if (app_data->printf_callback == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
367 int (*fprintf_callback)(FILE*, const char*, ...) = &fprintf;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
368 FILE* fprintf_stream = stdout;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
369 app_data->printf_callback = (printf_callback_t) fprintf_callback;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
370 if (app_data->printf_stream == NULL)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
371 app_data->printf_stream = (void*) fprintf_stream;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
372 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
373 if (app_data->event_callback == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
374 if (app_data->event_stream == NULL)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
375 app_data->event_callback = &null_event_callback;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
376 else
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
377 app_data->event_callback = &xml_event_callback;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
378 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
379
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 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
383 char* iop_base = app_data->insn_options;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
384 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
385 char* iop = iop_base;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
386 const char* p;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
387 for (p = caller_options; p != NULL; ) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
388 const char* q = strchr(p, ',');
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
389 size_t plen = (q == NULL) ? strlen(p) : ((q++) - p);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
390 if (plen == 4 && strncmp(p, "help", plen) == 0) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
391 print_help(app_data, NULL, NULL);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
392 } else if (plen >= 5 && strncmp(p, "mach=", 5) == 0) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
393 char* mach_option = app_data->mach_option;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
394 size_t mach_size = sizeof(app_data->mach_option);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
395 mach_size -= 1; /*leave room for the null*/
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
396 if (plen > mach_size) plen = mach_size;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
397 strncpy(mach_option, p, plen);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
398 mach_option[plen] = '\0';
4938
de34c646c3f7 7140985: HSDIS does not handle caller options correctly
kvn
parents: 2426
diff changeset
399 } else if (plen > 6 && strncmp(p, "hsdis-", 6) == 0) {
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
400 // do not pass these to the next level
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
401 } else {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
402 /* 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
403 if (iop > iop_base && iop < iop_limit) (*iop++) = ',';
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
404 if (iop + plen > iop_limit)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
405 plen = iop_limit - iop;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
406 strncpy(iop, p, plen);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
407 iop += plen;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
408 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
409 p = q;
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 }
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 static void print_help(struct hsdis_app_data* app_data,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
414 const char* msg, const char* arg) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
415 DECL_PRINTF_CALLBACK(app_data);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
416 if (msg != NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
417 (*printf_callback)(printf_stream, "hsdis: ");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
418 (*printf_callback)(printf_stream, msg, arg);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
419 (*printf_callback)(printf_stream, "\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
420 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
421 (*printf_callback)(printf_stream, "hsdis output options:\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
422 if (printf_callback == (printf_callback_t) &fprintf)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
423 disassembler_usage((FILE*) printf_stream);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
424 else
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
425 disassembler_usage(stderr); /* better than nothing */
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
426 (*printf_callback)(printf_stream, " mach=<arch> select disassembly mode\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
427 #if defined(LIBARCH_i386) || defined(LIBARCH_amd64)
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
428 (*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
429 (*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
430 (*printf_callback)(printf_stream, " suffix always print instruction suffix\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
431 #endif
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
432 (*printf_callback)(printf_stream, " help print this message\n");
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
433 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
434
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 /* 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
437
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
438 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
439 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
440 if (arch_info == NULL) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
441 extern const bfd_arch_info_type bfd_default_arch_struct;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
442 arch_info = &bfd_default_arch_struct;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
443 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
444 return arch_info;
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
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
447 static const char* native_arch_name() {
720
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
448 const char* res = NULL;
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
449 #ifdef LIBARCH_i386
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
450 res = "i386";
720
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
451 #endif
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
452 #ifdef LIBARCH_amd64
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
453 res = "i386:x86-64";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
454 #endif
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
455 #ifdef LIBARCH_sparc
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
456 res = "sparc:v8plusb";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
457 #endif
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
458 #ifdef LIBARCH_sparcv9
6782
5a98bf7d847b 6879063: SA should use hsdis for disassembly
minqi
parents: 4938
diff changeset
459 res = "sparc:v9b";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
460 #endif
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
461 if (res == NULL)
720
67a2f5ba5582 6684007: PrintAssembly plugin not available for linux or windows
never
parents: 100
diff changeset
462 res = "architecture not set in Makefile!";
100
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
463 return res;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
464 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
465
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
466 static enum bfd_endian native_endian() {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
467 int32_t endian_test = 'x';
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
468 if (*(const char*) &endian_test == 'x')
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
469 return BFD_ENDIAN_LITTLE;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
470 else
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
471 return BFD_ENDIAN_BIG;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
472 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
473
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
474 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
475 bfd* empty_bfd, bfd_target* empty_xvec) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
476 memset(empty_bfd, 0, sizeof(*empty_bfd));
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
477 memset(empty_xvec, 0, sizeof(*empty_xvec));
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
478 empty_xvec->flavour = bfd_target_unknown_flavour;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
479 empty_xvec->byteorder = native_endian();
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
480 empty_bfd->xvec = empty_xvec;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
481 empty_bfd->arch_info = arch_info;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
482 return empty_bfd;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
483 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
484
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
485 static int read_zero_data_only(bfd_vma ignore_p,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
486 bfd_byte* myaddr, unsigned int length,
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
487 struct disassemble_info *ignore_info) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
488 memset(myaddr, 0, length);
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
489 return 0;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
490 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
491 static int print_to_dev_null(void* ignore_stream, const char* ignore_format, ...) {
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
492 return 0;
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
493 }
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
494
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
495 /* Prime the pump by running the selected disassembler on a null input.
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
496 This forces the machine-specific disassembler to divulge invariant
c7c777385a15 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
497 information like bytes_per_line.
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498 */
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499 static void parse_fake_insn(disassembler_ftype dfn,
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500 struct disassemble_info* dinfo) {
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501 typedef int (*read_memory_ftype)
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502 (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
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503 struct disassemble_info *info);
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504 read_memory_ftype read_memory_func = dinfo->read_memory_func;
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505 fprintf_ftype fprintf_func = dinfo->fprintf_func;
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506
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507 dinfo->read_memory_func = &read_zero_data_only;
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508 dinfo->fprintf_func = &print_to_dev_null;
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509 (*dfn)(0, dinfo);
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510
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511 /* put it back */
100
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512 dinfo->read_memory_func = read_memory_func;
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513 dinfo->fprintf_func = fprintf_func;
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514 }
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515
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516 static void init_disassemble_info_from_bfd(struct disassemble_info* dinfo,
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517 void *stream,
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518 fprintf_ftype fprintf_func,
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519 bfd* abfd,
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520 char* disassembler_options) {
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521 init_disassemble_info(dinfo, stream, fprintf_func);
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522
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523 dinfo->flavour = bfd_get_flavour(abfd);
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524 dinfo->arch = bfd_get_arch(abfd);
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525 dinfo->mach = bfd_get_mach(abfd);
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526 dinfo->disassembler_options = disassembler_options;
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527 dinfo->octets_per_byte = bfd_octets_per_byte (abfd);
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528 dinfo->skip_zeroes = sizeof(void*) * 2;
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529 dinfo->skip_zeroes_at_end = sizeof(void*)-1;
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530 dinfo->disassembler_needs_relocs = FALSE;
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531
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532 if (bfd_big_endian(abfd))
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533 dinfo->display_endian = dinfo->endian = BFD_ENDIAN_BIG;
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534 else if (bfd_little_endian(abfd))
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535 dinfo->display_endian = dinfo->endian = BFD_ENDIAN_LITTLE;
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536 else
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537 dinfo->endian = native_endian();
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538
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539 disassemble_init_for_target(dinfo);
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540 }