| 1 | .\" Copyright (c) 1991 Free Software Foundation |
| 2 | .\" See section COPYING for conditions for redistribution |
| 3 | .TH objdump 1 "5 November 1991" "cygnus support" "GNU Development Tools" |
| 4 | .de BP |
| 5 | .sp |
| 6 | .ti \-.2i |
| 7 | \(** |
| 8 | .. |
| 9 | |
| 10 | .SH NAME |
| 11 | objdump \- display information from object files. |
| 12 | |
| 13 | .SH SYNOPSIS |
| 14 | .hy 0 |
| 15 | .na |
| 16 | .TP |
| 17 | .B objdump |
| 18 | .RB "[\|" \-a | \-\-archive\-headers "\|]" |
| 19 | .RB "[\|" "\-b\ "\c |
| 20 | .I bfdname\c |
| 21 | .RB " | " "\-\-target="\c |
| 22 | .I bfdname\c |
| 23 | \&\|] |
| 24 | .RB "[\|" \-d | \-\-disassemble "\|]" |
| 25 | .RB "[\|" \-f | \-\-file\-headers "\|]" |
| 26 | .RB "[\|" \-h | \-\-section\-headers |
| 27 | .RB "| " \-\-headers "\|]" |
| 28 | .RB "[\|" \-i | \-\-info "\|]" |
| 29 | .RB "[\|" "\-j\ "\c |
| 30 | .I section\c |
| 31 | .RB " | " "\-\-section="\c |
| 32 | .I section\c |
| 33 | \&\|] |
| 34 | .RB "[\|" \-l | \-\-line\-numbers "\|]" |
| 35 | .RB "[\|" "\-m\ "\c |
| 36 | .I machine\c |
| 37 | .RB " | " "\-\-architecture="\c |
| 38 | .I machine\c |
| 39 | \&\|] |
| 40 | .RB "[\|" \-r | \-\-reloc "\|]" |
| 41 | .RB "[\|" \-s | \-\-full\-contents "\|]" |
| 42 | .RB "[\|" \-\-stabs "\|]" |
| 43 | .RB "[\|" \-t | \-\-syms "\|]" |
| 44 | .RB "[\|" \-x | \-\-all\-headers "\|]" |
| 45 | .RB "[\|" \-\-version "\|]" |
| 46 | .RB "[\|" \-\-help "\|]" |
| 47 | .I objfile\c |
| 48 | \&.\|.\|. |
| 49 | .ad b |
| 50 | .hy 1 |
| 51 | .SH DESCRIPTION |
| 52 | \c |
| 53 | .B objdump\c |
| 54 | \& displays information about one or more object files. |
| 55 | The options control what particular information to display. This |
| 56 | information is mostly useful to programmers who are working on the |
| 57 | compilation tools, as opposed to programmers who just want their |
| 58 | program to compile and work. |
| 59 | .PP |
| 60 | .IR "objfile" .\|.\|. |
| 61 | are the object files to be examined. When you specify archives, |
| 62 | \c |
| 63 | .B objdump\c |
| 64 | \& shows information on each of the member object files. |
| 65 | |
| 66 | .SH OPTIONS |
| 67 | Where long and short forms of an option are shown together, they are |
| 68 | equivalent. At least one option besides |
| 69 | .B \-l |
| 70 | (\fB\-\-line\-numbers\fP) must be given. |
| 71 | |
| 72 | .TP |
| 73 | .B \-a |
| 74 | .TP |
| 75 | .B \-\-archive\-headers |
| 76 | If any files from \c |
| 77 | .I objfile\c |
| 78 | \& are archives, display the archive |
| 79 | header information (in a format similar to `\|\c |
| 80 | .B ls \-l\c |
| 81 | \|'). Besides the |
| 82 | information you could list with `\|\c |
| 83 | .B ar tv\c |
| 84 | \|', `\|\c |
| 85 | .B objdump \-a\c |
| 86 | \|' shows |
| 87 | the object file format of each archive member. |
| 88 | |
| 89 | .TP |
| 90 | .BI "\-b " "bfdname"\c |
| 91 | .TP |
| 92 | .BI "\-\-target=" "bfdname"\c |
| 93 | \& |
| 94 | Specify the object-code format for the object files to be |
| 95 | \c |
| 96 | .I bfdname\c |
| 97 | \&. This may not be necessary; \c |
| 98 | .I objdump\c |
| 99 | \& can |
| 100 | automatically recognize many formats. For example, |
| 101 | .sp |
| 102 | .br |
| 103 | objdump\ \-b\ oasys\ \-m\ vax\ \-h\ fu.o |
| 104 | .br |
| 105 | .sp |
| 106 | |
| 107 | display summary information from the section headers (`\|\c |
| 108 | .B \-h\c |
| 109 | \|') of |
| 110 | `\|\c |
| 111 | .B fu.o\c |
| 112 | \|', which is explicitly identified (`\|\c |
| 113 | .B \-m\c |
| 114 | \|') as a Vax object |
| 115 | file in the format produced by Oasys compilers. You can list the |
| 116 | formats available with the `\|\c |
| 117 | .B \-i\c |
| 118 | \|' option. |
| 119 | |
| 120 | .TP |
| 121 | .B \-d |
| 122 | .TP |
| 123 | .B \-\-disassemble |
| 124 | Display the assembler mnemonics for the machine |
| 125 | instructions from \c |
| 126 | .I objfile\c |
| 127 | \&. |
| 128 | |
| 129 | .TP |
| 130 | .B \-f |
| 131 | .TP |
| 132 | .B \-\-file\-headers |
| 133 | Display summary information from the overall header of |
| 134 | each file in \c |
| 135 | .I objfile\c |
| 136 | \&. |
| 137 | |
| 138 | .TP |
| 139 | .B \-h |
| 140 | .TP |
| 141 | .B \-\-section\-headers |
| 142 | .TP |
| 143 | .B \-\-headers |
| 144 | Display summary information from the section headers of the |
| 145 | object file. |
| 146 | |
| 147 | .TP |
| 148 | .B \-\-help |
| 149 | Print a summary of the options to |
| 150 | .B objdump |
| 151 | and exit. |
| 152 | |
| 153 | .TP |
| 154 | .B \-i |
| 155 | .TP |
| 156 | .B \-\-info |
| 157 | Display a list showing all architectures and object formats available |
| 158 | for specification with \c |
| 159 | .B \-b\c |
| 160 | \& or \c |
| 161 | .B \-m\c |
| 162 | \&. |
| 163 | |
| 164 | .TP |
| 165 | .BI "\-j " "name"\c |
| 166 | .TP |
| 167 | .BI "\-\-section=" "name"\c |
| 168 | \& |
| 169 | Display information only for section \c |
| 170 | .I name\c |
| 171 | \& |
| 172 | |
| 173 | .TP |
| 174 | .B \-l |
| 175 | .TP |
| 176 | .B \-\-line\-numbers |
| 177 | Label the display (using debugging information) with the filename |
| 178 | and source line numbers corresponding to the object code shown. |
| 179 | Only useful with \fB\-d\fP. |
| 180 | |
| 181 | .TP |
| 182 | .BI "\-m " "machine"\c |
| 183 | .TP |
| 184 | .BI "\-\-architecture=" "machine"\c |
| 185 | \& |
| 186 | Specify the object files \c |
| 187 | .I objfile\c |
| 188 | \& are for architecture |
| 189 | \c |
| 190 | .I machine\c |
| 191 | \&. You can list available architectures using the `\|\c |
| 192 | .B \-i\c |
| 193 | \|' |
| 194 | option. |
| 195 | |
| 196 | .TP |
| 197 | .B \-r |
| 198 | .TP |
| 199 | .B \-\-reloc |
| 200 | Print the relocation entries of the file. |
| 201 | |
| 202 | .TP |
| 203 | .B \-s |
| 204 | .TP |
| 205 | .B \-\-full\-contents |
| 206 | Display the full contents of any sections requested. |
| 207 | |
| 208 | .TP |
| 209 | .B \-\-stabs |
| 210 | Display the contents of the .stab, .stab.index, and .stab.excl |
| 211 | sections from an ELF file. This is only useful on systems (such as |
| 212 | Solaris 2.0) in which .stab debugging symbol-table entries are carried |
| 213 | in an ELF section. In most other file formats, debugging symbol-table |
| 214 | entries are interleaved with linkage symbols, and are visible in the |
| 215 | \-\-syms output. |
| 216 | |
| 217 | .TP |
| 218 | .B \-t |
| 219 | .TP |
| 220 | .B \-\-syms |
| 221 | Symbol Table. Print the symbol table entries of the file. |
| 222 | This is similar to the information provided by the `\|\c |
| 223 | .B nm\c |
| 224 | \|' program. |
| 225 | |
| 226 | .TP |
| 227 | .B \-\-version |
| 228 | Print the version number of |
| 229 | .B objdump |
| 230 | and exit. |
| 231 | |
| 232 | .TP |
| 233 | .B \-x |
| 234 | .TP |
| 235 | .B \-\-all\-headers |
| 236 | Display all available header information, including the symbol table and |
| 237 | relocation entries. Using `\|\c |
| 238 | .B \-x\c |
| 239 | \|' is equivalent to specifying all of |
| 240 | `\|\c |
| 241 | .B \-a \-f \-h \-r \-t\c |
| 242 | \|'. |
| 243 | |
| 244 | .SH "SEE ALSO" |
| 245 | .RB "`\|" binutils "\|'" |
| 246 | entry in |
| 247 | .B |
| 248 | info\c |
| 249 | \&; |
| 250 | .I |
| 251 | The GNU Binary Utilities\c |
| 252 | \&, Roland H. Pesch (October 1991); |
| 253 | .BR nm "(" 1 ")." |
| 254 | |
| 255 | .SH COPYING |
| 256 | Copyright (c) 1991 Free Software Foundation, Inc. |
| 257 | .PP |
| 258 | Permission is granted to make and distribute verbatim copies of |
| 259 | this manual provided the copyright notice and this permission notice |
| 260 | are preserved on all copies. |
| 261 | .PP |
| 262 | Permission is granted to copy and distribute modified versions of this |
| 263 | manual under the conditions for verbatim copying, provided that the |
| 264 | entire resulting derived work is distributed under the terms of a |
| 265 | permission notice identical to this one. |
| 266 | .PP |
| 267 | Permission is granted to copy and distribute translations of this |
| 268 | manual into another language, under the above conditions for modified |
| 269 | versions, except that this permission notice may be included in |
| 270 | translations approved by the Free Software Foundation instead of in |
| 271 | the original English. |