1llvm-objdump - LLVM's object file dumper 2======================================== 3 4.. program:: llvm-objdump 5 6SYNOPSIS 7-------- 8 9:program:`llvm-objdump` [*commands*] [*options*] [*filenames...*] 10 11DESCRIPTION 12----------- 13The :program:`llvm-objdump` utility prints the contents of object files and 14final linked images named on the command line. If no file name is specified, 15:program:`llvm-objdump` will attempt to read from *a.out*. If *-* is used as a 16file name, :program:`llvm-objdump` will process a file on its standard input 17stream. 18 19COMMANDS 20-------- 21At least one of the following commands are required, and some commands can be 22combined with other commands: 23 24.. option:: -a, --archive-headers 25 26 Display the information contained within an archive's headers. 27 28.. option:: -d, --disassemble 29 30 Disassemble all text sections found in the input files. 31 32.. option:: -D, --disassemble-all 33 34 Disassemble all sections found in the input files. 35 36.. option:: --disassemble-symbols=<symbol1[,symbol2,...]> 37 38 Disassemble only the specified symbols. Takes demangled symbol names when 39 :option:`--demangle` is specified, otherwise takes mangled symbol names. 40 Implies :option:`--disassemble`. 41 42.. option:: --dwarf=<value> 43 44 Dump the specified DWARF debug sections. The supported values are: 45 46 `frames` - .debug_frame 47 48.. option:: -f, --file-headers 49 50 Display the contents of the overall file header. 51 52.. option:: --fault-map-section 53 54 Display the content of the fault map section. 55 56.. option:: -h, --headers, --section-headers 57 58 Display summaries of the headers for each section. 59 60.. option:: --help 61 62 Display usage information and exit. Does not stack with other commands. 63 64.. option:: -p, --private-headers 65 66 Display format-specific file headers. 67 68.. option:: -r, --reloc 69 70 Display the relocation entries in the file. 71 72.. option:: -R, --dynamic-reloc 73 74 Display the dynamic relocation entries in the file. 75 76.. option:: --raw-clang-ast 77 78 Dump the raw binary contents of the clang AST section. 79 80.. option:: -s, --full-contents 81 82 Display the contents of each section. 83 84.. option:: -t, --syms 85 86 Display the symbol table. 87 88.. option:: -T, --dynamic-syms 89 90 Display the contents of the dynamic symbol table. 91 92.. option:: -u, --unwind-info 93 94 Display the unwind info of the input(s). 95 96.. option:: --version 97 98 Display the version of the :program:`llvm-objdump` executable. Does not stack 99 with other commands. 100 101.. option:: -x, --all-headers 102 103 Display all available header information. Equivalent to specifying 104 :option:`--archive-headers`, :option:`--file-headers`, 105 :option:`--private-headers`, :option:`--reloc`, :option:`--section-headers`, 106 and :option:`--syms`. 107 108OPTIONS 109------- 110:program:`llvm-objdump` supports the following options: 111 112.. option:: --adjust-vma=<offset> 113 114 Increase the displayed address in disassembly or section header printing by 115 the specified offset. 116 117.. option:: --arch-name=<string> 118 119 Specify the target architecture when disassembling. Use :option:`--version` 120 for a list of available targets. 121 122.. option:: -C, --demangle 123 124 Demangle symbol names in the output. 125 126.. option:: --debug-vars=<format> 127 128 Print the locations (in registers or memory) of source-level variables 129 alongside disassembly. ``format`` may be ``unicode`` or ``ascii``, defaulting 130 to ``unicode`` if omitted. 131 132.. option:: --debug-vars-indent=<width> 133 134 Distance to indent the source-level variable display, relative to the start 135 of the disassembly. Defaults to 40 characters. 136 137.. option:: -j, --section=<section1[,section2,...]> 138 139 Perform commands on the specified sections only. For Mach-O use 140 `segment,section` to specify the section name. 141 142.. option:: -l, --line-numbers 143 144 When disassembling, display source line numbers. Implies 145 :option:`--disassemble`. 146 147.. option:: -M, --disassembler-options=<opt1[,opt2,...]> 148 149 Pass target-specific disassembler options. Currently supported for ARM targets 150 only. Available options are ``reg-names-std`` and ``reg-names-raw``. 151 152.. option:: --mcpu=<cpu-name> 153 154 Target a specific CPU type for disassembly. Specify ``--mcpu=help`` to display 155 available CPUs. 156 157.. option:: --mattr=<a1,+a2,-a3,...> 158 159 Enable/disable target-specific attributes. Specify ``--mattr=help`` to display 160 the available attributes. 161 162.. option:: --no-leading-addr 163 164 When disassembling, do not print leading addresses. 165 166.. option:: --no-show-raw-insn 167 168 When disassembling, do not print the raw bytes of each instruction. 169 170.. option:: --prefix=<prefix> 171 172 When disassembling with the :option:`--source` option, prepend ``prefix`` to 173 absolute paths. 174 175.. option:: --prefix-strip=<level> 176 177 When disassembling with the :option:`--source` option, strip out ``level`` 178 initial directories from absolute paths. This option has no effect without 179 :option:`--prefix`. 180 181.. option:: --print-imm-hex 182 183 Use hex format when printing immediate values in disassembly output. 184 185.. option:: -S, --source 186 187 When disassembling, display source interleaved with the disassembly. Implies 188 :option:`--disassemble`. 189 190.. option:: --show-lma 191 192 Display the LMA column when dumping ELF section headers. Defaults to off 193 unless any section has different VMA and LMAs. 194 195.. option:: --start-address=<address> 196 197 When disassembling, only disassemble from the specified address. 198 199 When printing relocations, only print the relocations patching offsets from at least ``address``. 200 201 When printing symbols, only print symbols with a value of at least ``address``. 202 203.. option:: --stop-address=<address> 204 205 When disassembling, only disassemble up to, but not including the specified address. 206 207 When printing relocations, only print the relocations patching offsets up to ``address``. 208 209 When printing symbols, only print symbols with a value up to ``address``. 210 211.. option:: --symbolize-operands 212 213 When disassembling, symbolize a branch target operand to print a label instead of a real address. 214 215 When printing a PC-relative global symbol reference, print it as an offset from the leading symbol. 216 217 Only works with an X86 linked image. 218 219 Example: 220 A non-symbolized branch instruction with a local target and pc-relative memory access like 221 222 .. code-block:: none 223 224 cmp eax, dword ptr [rip + 4112] 225 jge 0x20117e <_start+0x25> 226 227 might become 228 229 .. code-block:: none 230 231 <L0>: 232 cmp eax, dword ptr <g> 233 jge <L0> 234 235.. option:: --triple=<string> 236 237 Target triple to disassemble for, see ``--version`` for available targets. 238 239.. option:: -w, --wide 240 241 Ignored for compatibility with GNU objdump. 242 243.. option:: --x86-asm-syntax=<style> 244 245 When used with :option:`--disassemble`, choose style of code to emit from 246 X86 backend. Supported values are: 247 248 .. option:: att 249 250 AT&T-style assembly 251 252 .. option:: intel 253 254 Intel-style assembly 255 256 257 The default disassembly style is **att**. 258 259.. option:: -z, --disassemble-zeroes 260 261 Do not skip blocks of zeroes when disassembling. 262 263.. option:: @<FILE> 264 265 Read command-line options and commands from response file `<FILE>`. 266 267MACH-O ONLY OPTIONS AND COMMANDS 268-------------------------------- 269 270.. option:: --arch=<architecture> 271 272 Specify the architecture to disassemble. see ``--version`` for available 273 architectures. 274 275.. option:: --archive-member-offsets 276 277 Print the offset to each archive member for Mach-O archives (requires 278 :option:`--archive-headers`). 279 280.. option:: --bind 281 282 Display binding info 283 284.. option:: --cfg 285 286 Create a CFG for every symbol in the object file and write it to a graphviz 287 file. 288 289.. option:: --data-in-code 290 291 Display the data in code table. 292 293.. option:: --dis-symname=<name> 294 295 Disassemble just the specified symbol's instructions. 296 297.. option:: --dylibs-used 298 299 Display the shared libraries used for linked files. 300 301.. option:: --dsym=<string> 302 303 Use .dSYM file for debug info. 304 305.. option:: --dylib-id 306 307 Display the shared library's ID for dylib files. 308 309.. option:: --exports-trie 310 311 Display exported symbols. 312 313.. option:: --function-starts 314 315 Print the function starts table for Mach-O objects. 316 317.. option:: -g 318 319 Print line information from debug info if available. 320 321.. option:: --full-leading-addr 322 323 Print the full leading address when disassembling. 324 325.. option:: --indirect-symbols 326 327 Display the indirect symbol table. 328 329.. option:: --info-plist 330 331 Display the info plist section as strings. 332 333.. option:: --lazy-bind 334 335 Display lazy binding info. 336 337.. option:: --link-opt-hints 338 339 Display the linker optimization hints. 340 341.. option:: -m, --macho 342 343 Use Mach-O specific object file parser. Commands and other options may behave 344 differently when used with ``--macho``. 345 346.. option:: --no-leading-headers 347 348 Do not print any leading headers. 349 350.. option:: --no-symbolic-operands 351 352 Do not print symbolic operands when disassembling. 353 354.. option:: --non-verbose 355 356 Display the information for Mach-O objects in non-verbose or numeric form. 357 358.. option:: --objc-meta-data 359 360 Display the Objective-C runtime meta data. 361 362.. option:: --private-header 363 364 Display only the first format specific file header. 365 366.. option:: --rebase 367 368 Display rebasing information. 369 370.. option:: --universal-headers 371 372 Display universal headers. 373 374.. option:: --weak-bind 375 376 Display weak binding information. 377 378XCOFF ONLY OPTIONS AND COMMANDS 379--------------------------------- 380 381.. option:: --symbol-description 382 383 Add symbol description to disassembly output. 384 385BUGS 386---- 387 388To report bugs, please visit <https://bugs.llvm.org/>. 389 390SEE ALSO 391-------- 392 393:manpage:`llvm-nm(1)`, :manpage:`llvm-readelf(1)`, :manpage:`llvm-readobj(1)` 394