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:: -v, --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. Available options: 150 151 * ``reg-names-std``: ARM only (default). Print in ARM 's instruction set documentation, with r13/r14/r15 replaced by sp/lr/pc. 152 * ``reg-names-raw``: ARM only. Use r followed by the register number. 153 * ``no-aliases``: AArch64 and RISC-V only. Print raw instruction mnemonic instead of pesudo instruction mnemonic. 154 * ``numeric``: RISC-V only. Print raw register names instead of ABI mnemonic. (e.g. print x1 instead of ra) 155 * ``att``: x86 only (default). Print in the AT&T syntax. 156 * ``intel``: x86 only. Print in the intel syntax. 157 158.. option:: --mcpu=<cpu-name> 159 160 Target a specific CPU type for disassembly. Specify ``--mcpu=help`` to display 161 available CPUs. 162 163.. option:: --mattr=<a1,+a2,-a3,...> 164 165 Enable/disable target-specific attributes. Specify ``--mattr=help`` to display 166 the available attributes. 167 168.. option:: --no-leading-addr 169 170 When disassembling, do not print leading addresses. 171 172.. option:: --no-show-raw-insn 173 174 When disassembling, do not print the raw bytes of each instruction. 175 176.. option:: --prefix=<prefix> 177 178 When disassembling with the :option:`--source` option, prepend ``prefix`` to 179 absolute paths. 180 181.. option:: --prefix-strip=<level> 182 183 When disassembling with the :option:`--source` option, strip out ``level`` 184 initial directories from absolute paths. This option has no effect without 185 :option:`--prefix`. 186 187.. option:: --print-imm-hex 188 189 Use hex format when printing immediate values in disassembly output. 190 191.. option:: -S, --source 192 193 When disassembling, display source interleaved with the disassembly. Implies 194 :option:`--disassemble`. 195 196.. option:: --show-lma 197 198 Display the LMA column when dumping ELF section headers. Defaults to off 199 unless any section has different VMA and LMAs. 200 201.. option:: --start-address=<address> 202 203 When disassembling, only disassemble from the specified address. 204 205 When printing relocations, only print the relocations patching offsets from at least ``address``. 206 207 When printing symbols, only print symbols with a value of at least ``address``. 208 209.. option:: --stop-address=<address> 210 211 When disassembling, only disassemble up to, but not including the specified address. 212 213 When printing relocations, only print the relocations patching offsets up to ``address``. 214 215 When printing symbols, only print symbols with a value up to ``address``. 216 217.. option:: --symbolize-operands 218 219 When disassembling, symbolize a branch target operand to print a label instead of a real address. 220 221 When printing a PC-relative global symbol reference, print it as an offset from the leading symbol. 222 223 Only works with an X86 linked image. 224 225 Example: 226 A non-symbolized branch instruction with a local target and pc-relative memory access like 227 228 .. code-block:: none 229 230 cmp eax, dword ptr [rip + 4112] 231 jge 0x20117e <_start+0x25> 232 233 might become 234 235 .. code-block:: none 236 237 <L0>: 238 cmp eax, dword ptr <g> 239 jge <L0> 240 241.. option:: --triple=<string> 242 243 Target triple to disassemble for, see ``--version`` for available targets. 244 245.. option:: -w, --wide 246 247 Ignored for compatibility with GNU objdump. 248 249.. option:: --x86-asm-syntax=<style> 250 251 Deprecated. 252 When used with :option:`--disassemble`, choose style of code to emit from 253 X86 backend. Supported values are: 254 255 .. option:: att 256 257 AT&T-style assembly 258 259 .. option:: intel 260 261 Intel-style assembly 262 263 264 The default disassembly style is **att**. 265 266.. option:: -z, --disassemble-zeroes 267 268 Do not skip blocks of zeroes when disassembling. 269 270.. option:: @<FILE> 271 272 Read command-line options and commands from response file `<FILE>`. 273 274MACH-O ONLY OPTIONS AND COMMANDS 275-------------------------------- 276 277.. option:: --arch=<architecture> 278 279 Specify the architecture to disassemble. see ``--version`` for available 280 architectures. 281 282.. option:: --archive-member-offsets 283 284 Print the offset to each archive member for Mach-O archives (requires 285 :option:`--archive-headers`). 286 287.. option:: --bind 288 289 Display binding info 290 291.. option:: --data-in-code 292 293 Display the data in code table. 294 295.. option:: --dis-symname=<name> 296 297 Disassemble just the specified symbol's instructions. 298 299.. option:: --dylibs-used 300 301 Display the shared libraries used for linked files. 302 303.. option:: --dsym=<string> 304 305 Use .dSYM file for debug info. 306 307.. option:: --dylib-id 308 309 Display the shared library's ID for dylib files. 310 311.. option:: --exports-trie 312 313 Display exported symbols. 314 315.. option:: --function-starts 316 317 Print the function starts table for Mach-O objects. 318 319.. option:: -g 320 321 Print line information from debug info if available. 322 323.. option:: --full-leading-addr 324 325 Print the full leading address when disassembling. 326 327.. option:: --indirect-symbols 328 329 Display the indirect symbol table. 330 331.. option:: --info-plist 332 333 Display the info plist section as strings. 334 335.. option:: --lazy-bind 336 337 Display lazy binding info. 338 339.. option:: --link-opt-hints 340 341 Display the linker optimization hints. 342 343.. option:: -m, --macho 344 345 Use Mach-O specific object file parser. Commands and other options may behave 346 differently when used with ``--macho``. 347 348.. option:: --no-leading-headers 349 350 Do not print any leading headers. 351 352.. option:: --no-symbolic-operands 353 354 Do not print symbolic operands when disassembling. 355 356.. option:: --non-verbose 357 358 Display the information for Mach-O objects in non-verbose or numeric form. 359 360.. option:: --objc-meta-data 361 362 Display the Objective-C runtime meta data. 363 364.. option:: --private-header 365 366 Display only the first format specific file header. 367 368.. option:: --rebase 369 370 Display rebasing information. 371 372.. option:: --rpaths 373 374 Display runtime search paths for the binary. 375 376.. option:: --universal-headers 377 378 Display universal headers. 379 380.. option:: --weak-bind 381 382 Display weak binding information. 383 384XCOFF ONLY OPTIONS AND COMMANDS 385--------------------------------- 386 387.. option:: --symbol-description 388 389 Add symbol description to disassembly output. 390 391BUGS 392---- 393 394To report bugs, please visit <https://bugs.llvm.org/>. 395 396SEE ALSO 397-------- 398 399:manpage:`llvm-nm(1)`, :manpage:`llvm-otool(1)`, :manpage:`llvm-readelf(1)`, 400:manpage:`llvm-readobj(1)` 401