1 llvm-objdump - LLVM's object file dumper
2 ========================================
4 .. program:: llvm-objdump
9 :program:`llvm-objdump` [*commands*] [*options*] [*filenames...*]
13 The :program:`llvm-objdump` utility prints the contents of object files and
14 final 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
16 file name, :program:`llvm-objdump` will process a file on its standard input
21 At least one of the following commands are required, and some commands can be
22 combined with other commands:
24 .. option:: -a, --archive-headers
26 Display the information contained within an archive's headers.
28 .. option:: -d, --disassemble
30 Disassemble all text sections found in the input files.
32 .. option:: -D, --disassemble-all
34 Disassemble all sections found in the input files.
36 .. option:: --disassemble-functions=<symbol1[,symbol2,...]>
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`.
42 .. option:: --dwarf=<value>
44 Dump the specified DWARF debug sections. The supported values are:
46 `frames` - .debug_frame
48 .. option:: -f, --file-headers
50 Display the contents of the overall file header.
52 .. option:: --fault-map-section
54 Display the content of the fault map section.
56 .. option:: -h, --headers, --section-headers
58 Display summaries of the headers for each section.
62 Display usage information and exit. Does not stack with other commands.
64 .. option:: -p, --private-headers
66 Display format-specific file headers.
68 .. option:: -r, --reloc
70 Display the relocation entries in the file.
72 .. option:: -R, --dynamic-reloc
74 Display the dynamic relocation entries in the file.
76 .. option:: --raw-clang-ast
78 Dump the raw binary contents of the clang AST section.
80 .. option:: -s, --full-contents
82 Display the contents of each section.
84 .. option:: -t, --syms
86 Display the symbol table.
88 .. option:: -u, --unwind-info
90 Display the unwind info of the input(s).
94 Display the version of this program. Does not stack with other commands.
96 .. option:: -x, --all-headers
98 Display all available header information. Equivalent to specifying
99 :option:`--archive-headers`, :option:`--file-headers`,
100 :option:`--private-headers`, :option:`--reloc`, :option:`--section-headers`,
101 and :option:`--syms`.
105 :program:`llvm-objdump` supports the following options:
107 .. option:: --adjust-vma=<offset>
109 Increase the displayed address in disassembly or section header printing by
110 the specified offset.
112 .. option:: --arch-name=<string>
114 Specify the target architecture when disassembling. Use :option:`--version`
115 for a list of available targets.
117 .. option:: -C, --demangle
119 Demangle symbol names in the output.
121 .. option:: -j, --section=<section1[,section2,...]>
123 Perform commands on the specified sections only. For Mach-O use
124 `segment,section` to specify the section name.
126 .. option:: -l, --line-numbers
128 When disassembling, display source line numbers. Implies
129 :option:`--disassemble`.
131 .. option:: -M, --disassembler-options=<opt1[,opt2,...]>
133 Pass target-specific disassembler options. Currently supported for ARM targets
134 only. Available options are ``reg-names-std`` and ``reg-names-raw``.
136 .. option:: --mcpu=<cpu-name>
138 Target a specific CPU type for disassembly. Specify ``--mcpu=help`` to display
141 .. option:: --mattr=<a1,+a2,-a3,...>
143 Enable/disable target-specific attributes. Specify ``--mcpu=help`` to display
144 the available attributes.
146 .. option:: --no-leading-addr
148 When disassembling, do not print leading addresses.
150 .. option:: --no-show-raw-insn
152 When disassembling, do not print the raw bytes of each instruction.
154 .. option:: --print-imm-hex
156 Use hex format when printing immediate values in disassembly output.
158 .. option:: -S, --source
160 When disassembling, display source interleaved with the disassembly. Implies
161 :option:`--disassemble`.
163 .. option:: --show-lma
165 Display the LMA column when dumping ELF section headers. Defaults to off
166 unless any section has different VMA and LMAs.
168 .. option:: --start-address=<address>
170 When disassembling, only disassemble from the specified address.
172 When printing relocations, only print the relocations patching offsets from at least ``address``.
174 When printing symbols, only print symbols with a value of at least ``address``.
176 .. option:: --stop-address=<address>
178 When disassembling, only disassemble up to, but not including the specified address.
180 When printing relocations, only print the relocations patching offsets up to ``address``.
182 When printing symbols, only print symbols with a value up to ``address``.
184 .. option:: --triple=<string>
186 Target triple to disassemble for, see ``--version`` for available targets.
188 .. option:: -w, --wide
190 Ignored for compatibility with GNU objdump.
192 .. option:: --x86-asm-syntax=<style>
194 When used with :option:`--disassemble`, choose style of code to emit from
195 X86 backend. Supported values are:
206 The default disassembly style is **att**.
208 .. option:: -z, --disassemble-zeroes
210 Do not skip blocks of zeroes when disassembling.
214 Read command-line options and commands from response file `<FILE>`.
216 MACH-O ONLY OPTIONS AND COMMANDS
217 --------------------------------
219 .. option:: --arch=<architecture>
221 Specify the architecture to disassemble. see ``--version`` for available
224 .. option:: --archive-member-offsets
226 Print the offset to each archive member for Mach-O archives (requires
227 :option:`--archive-headers`).
235 Create a CFG for every symbol in the object file and write it to a graphviz
238 .. option:: --data-in-code
240 Display the data in code table.
242 .. option:: --dis-symname=<name>
244 Disassemble just the specified symbol's instructions.
246 .. option:: --dylibs-used
248 Display the shared libraries used for linked files.
250 .. option:: --dsym=<string>
252 Use .dSYM file for debug info.
254 .. option:: --dylib-id
256 Display the shared library's ID for dylib files.
258 .. option:: --exports-trie
260 Display exported symbols.
264 Print line information from debug info if available.
266 .. option:: --full-leading-addr
268 Print the full leading address when disassembling.
270 .. option:: --indirect-symbols
272 Display the indirect symbol table.
274 .. option:: --info-plist
276 Display the info plist section as strings.
278 .. option:: --lazy-bind
280 Display lazy binding info.
282 .. option:: --link-opt-hints
284 Display the linker optimization hints.
286 .. option:: -m, --macho
288 Use Mach-O specific object file parser. Commands and other options may behave
289 differently when used with ``--macho``.
291 .. option:: --no-leading-headers
293 Do not print any leading headers.
295 .. option:: --no-symbolic-operands
297 Do not print symbolic operands when disassembling.
299 .. option:: --non-verbose
301 Display the information for Mach-O objects in non-verbose or numeric form.
303 .. option:: --objc-meta-data
305 Display the Objective-C runtime meta data.
307 .. option:: --private-header
309 Display only the first format specific file header.
313 Display rebasing information.
315 .. option:: --universal-headers
317 Display universal headers.
319 .. option:: --weak-bind
321 Display weak binding information.
326 To report bugs, please visit <http://llvm.org/bugs/>.
331 :manpage:`llvm-nm(1)`, :manpage:`llvm-readelf(1)`, :manpage:`llvm-readobj(1)`