Mercurial > hg > truffle
annotate src/share/tools/hsdis/hsdis.c @ 7666:31540ca73e81
Remove ControlFlowException in SimpleLanguage.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 01 Feb 2013 19:53:52 +0100 |
parents | 3d701c802d01 |
children | ec922e5c545a |
rev | line source |
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1 /* |
6782 | 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> |
6782 | 34 #include <string.h> |
35 #include <errno.h> | |
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 { |
6782 | 50 /* virtual address of data */ |
51 uintptr_t start_va, end_va; | |
52 /* the instructions to be decoded */ | |
53 unsigned char* buffer; | |
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; |
6782 | 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 |
6782 | 72 static void* decode(struct hsdis_app_data* app_data, const char* options); |
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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84 |
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85 |
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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 |
6782 | 98 decode_instructions_virtual(uintptr_t start_va, uintptr_t end_va, |
99 unsigned char* buffer, uintptr_t length, | |
100 event_callback_t event_callback_arg, void* event_stream_arg, | |
101 printf_callback_t printf_callback_arg, void* printf_stream_arg, | |
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102 const char* options, int newline) { |
6782 | 103 struct hsdis_app_data app_data; |
104 memset(&app_data, 0, sizeof(app_data)); | |
105 app_data.start_va = start_va; | |
106 app_data.end_va = end_va; | |
107 app_data.buffer = buffer; | |
108 app_data.length = length; | |
109 app_data.event_callback = event_callback_arg; | |
110 app_data.event_stream = event_stream_arg; | |
111 app_data.printf_callback = printf_callback_arg; | |
112 app_data.printf_stream = printf_stream_arg; | |
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113 app_data.do_newline = newline == 0 ? false : true; |
6782 | 114 |
115 return decode(&app_data, options); | |
116 } | |
117 | |
118 /* This is the compatability interface for older version of hotspot */ | |
119 void* | |
120 #ifdef DLL_ENTRY | |
121 DLL_ENTRY | |
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) { |
6782 | 127 decode_instructions_virtual((uintptr_t)start_pv, |
128 (uintptr_t)end_pv, | |
129 (unsigned char*)start_pv, | |
130 (uintptr_t)end_pv - (uintptr_t)start_pv, | |
131 event_callback_arg, | |
132 event_stream_arg, | |
133 printf_callback_arg, | |
134 printf_stream_arg, | |
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135 options, false); |
6782 | 136 } |
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137 |
6782 | 138 static void* decode(struct hsdis_app_data* app_data, const char* options) { |
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: */ |
6782 | 144 DECL_EVENT_CALLBACK(app_data); |
145 DECL_PRINTF_CALLBACK(app_data); | |
146 uintptr_t start = app_data->start_va; | |
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'", |
6782 | 153 (void*) app_data->arch_info->printable_name); |
154 if (app_data->dinfo.bytes_per_line != 0) { | |
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155 (*event_callback)(event_stream, "format bytes-per-line='%p'/", |
6782 | 156 (void*)(intptr_t) app_data->dinfo.bytes_per_line); |
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157 } |
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158 |
6782 | 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 */ |
6782 | 163 app_data->dinfo.insn_info_valid = 0; |
164 app_data->dinfo.branch_delay_insns = 0; | |
165 app_data->dinfo.data_size = 0; | |
166 app_data->dinfo.insn_type = 0; | |
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167 |
6782 | 168 int size = (*app_data->dfn)((bfd_vma) p, &app_data->dinfo); |
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169 |
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170 if (size > 0) p += size; |
6782 | 171 else app_data->losing = true; |
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172 |
6782 | 173 if (!app_data->losing) { |
174 const char* insn_close = format_insn_close("/insn", &app_data->dinfo, | |
175 buf, sizeof(buf)); | |
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176 (*event_callback)(event_stream, insn_close, (void*) p); |
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177 |
6782 | 178 if (app_data->do_newline) { |
179 /* follow each complete insn by a nice newline */ | |
180 (*printf_callback)(printf_stream, "\n"); | |
181 } | |
182 } | |
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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); |
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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; |
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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 | 232 /* convert the virtual address memaddr into an address within memory buffer */ |
233 uintptr_t offset = ((uintptr_t) memaddr) - app_data->start_va; | |
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 | 238 memcpy(myaddr, (bfd_byte*) (app_data->buffer + offset), length); |
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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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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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258 |
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259 |
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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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265 static const char* native_arch_name(); |
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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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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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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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279 static void setup_app_data(struct hsdis_app_data* app_data, |
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280 const char* caller_options) { |
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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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286 |
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287 /* Look into caller_options for anything interesting. */ |
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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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291 /* Discover which architecture we are going to disassemble. */ |
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292 app_data->arch_name = &app_data->mach_option[0]; |
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293 if (app_data->arch_name[0] == '\0') |
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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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296 |
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297 /* Make a fake bfd to hold the arch. and byteorder info. */ |
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298 struct { |
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299 bfd_target empty_xvec; |
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300 bfd empty_bfd; |
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301 } buf; |
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302 bfd* native_bfd = get_native_bfd(app_data->arch_info, |
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303 /* to avoid malloc: */ |
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304 &buf.empty_bfd, &buf.empty_xvec); |
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305 init_disassemble_info_from_bfd(&app_data->dinfo, |
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306 app_data->printf_stream, |
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307 app_data->printf_callback, |
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308 native_bfd, |
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309 app_data->insn_options); |
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310 |
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311 /* Finish linking together the various callback blocks. */ |
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312 app_data->dinfo.application_data = (void*) app_data; |
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313 app_data->dfn = disassembler(native_bfd); |
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314 app_data->dinfo.print_address_func = hsdis_print_address_func; |
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315 app_data->dinfo.read_memory_func = hsdis_read_memory_func; |
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316 |
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317 if (app_data->dfn == NULL) { |
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318 const char* bad = app_data->arch_name; |
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319 static bool complained; |
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320 if (bad == &app_data->mach_option[0]) |
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321 print_help(app_data, "bad mach=%s", bad); |
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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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324 complained = true; |
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325 /* must bail out */ |
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326 app_data->losing = true; |
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327 return; |
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328 } |
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329 |
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330 parse_fake_insn(app_data->dfn, &app_data->dinfo); |
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331 } |
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332 |
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333 |
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334 /* ignore all events, return a null */ |
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335 static void* null_event_callback(void* ignore_stream, const char* ignore_event, void* arg) { |
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336 return NULL; |
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337 } |
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338 |
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339 /* print all events as XML markup */ |
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340 static void* xml_event_callback(void* stream, const char* event, void* arg) { |
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341 FILE* fp = (FILE*) stream; |
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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; |
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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 | 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 | 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 | 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 | 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) { |
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488 memset(myaddr, 0, length); |
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489 return 0; |
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490 } |
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491 static int print_to_dev_null(void* ignore_stream, const char* ignore_format, ...) { |
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492 return 0; |
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493 } |
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494 |
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495 /* Prime the pump by running the selected disassembler on a null input. |
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496 This forces the machine-specific disassembler to divulge invariant |
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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 |
6782 | 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 } |