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:: -j, --section=<section1[,section2,...]>
127
128  Perform commands on the specified sections only. For Mach-O use
129  `segment,section` to specify the section name.
130
131.. option:: -l, --line-numbers
132
133  When disassembling, display source line numbers. Implies
134  :option:`--disassemble`.
135
136.. option:: -M, --disassembler-options=<opt1[,opt2,...]>
137
138  Pass target-specific disassembler options. Currently supported for ARM targets
139  only. Available options are ``reg-names-std`` and ``reg-names-raw``.
140
141.. option:: --mcpu=<cpu-name>
142
143  Target a specific CPU type for disassembly. Specify ``--mcpu=help`` to display
144  available CPUs.
145
146.. option:: --mattr=<a1,+a2,-a3,...>
147
148  Enable/disable target-specific attributes. Specify ``--mcpu=help`` to display
149  the available attributes.
150
151.. option:: --no-leading-addr
152
153  When disassembling, do not print leading addresses.
154
155.. option:: --no-show-raw-insn
156
157  When disassembling, do not print the raw bytes of each instruction.
158
159.. option:: --print-imm-hex
160
161  Use hex format when printing immediate values in disassembly output.
162
163.. option:: -S, --source
164
165  When disassembling, display source interleaved with the disassembly. Implies
166  :option:`--disassemble`.
167
168.. option:: --show-lma
169
170  Display the LMA column when dumping ELF section headers. Defaults to off
171  unless any section has different VMA and LMAs.
172
173.. option:: --start-address=<address>
174
175  When disassembling, only disassemble from the specified address.
176
177  When printing relocations, only print the relocations patching offsets from at least ``address``.
178
179  When printing symbols, only print symbols with a value of at least ``address``.
180
181.. option:: --stop-address=<address>
182
183  When disassembling, only disassemble up to, but not including the specified address.
184
185  When printing relocations, only print the relocations patching offsets up to ``address``.
186
187  When printing symbols, only print symbols with a value up to ``address``.
188
189.. option:: --triple=<string>
190
191  Target triple to disassemble for, see ``--version`` for available targets.
192
193.. option:: -w, --wide
194
195  Ignored for compatibility with GNU objdump.
196
197.. option:: --x86-asm-syntax=<style>
198
199  When used with :option:`--disassemble`, choose style of code to emit from
200  X86 backend. Supported values are:
201
202   .. option:: att
203
204    AT&T-style assembly
205
206   .. option:: intel
207
208    Intel-style assembly
209
210
211  The default disassembly style is **att**.
212
213.. option:: -z, --disassemble-zeroes
214
215  Do not skip blocks of zeroes when disassembling.
216
217.. option:: @<FILE>
218
219  Read command-line options and commands from response file `<FILE>`.
220
221MACH-O ONLY OPTIONS AND COMMANDS
222--------------------------------
223
224.. option:: --arch=<architecture>
225
226  Specify the architecture to disassemble. see ``--version`` for available
227  architectures.
228
229.. option:: --archive-member-offsets
230
231  Print the offset to each archive member for Mach-O archives (requires
232  :option:`--archive-headers`).
233
234.. option:: --bind
235
236  Display binding info
237
238.. option:: --cfg
239
240  Create a CFG for every symbol in the object file and write it to a graphviz
241  file.
242
243.. option:: --data-in-code
244
245  Display the data in code table.
246
247.. option:: --dis-symname=<name>
248
249  Disassemble just the specified symbol's instructions.
250
251.. option:: --dylibs-used
252
253  Display the shared libraries used for linked files.
254
255.. option:: --dsym=<string>
256
257  Use .dSYM file for debug info.
258
259.. option:: --dylib-id
260
261  Display the shared library's ID for dylib files.
262
263.. option:: --exports-trie
264
265  Display exported symbols.
266
267.. option:: -g
268
269  Print line information from debug info if available.
270
271.. option:: --full-leading-addr
272
273  Print the full leading address when disassembling.
274
275.. option:: --indirect-symbols
276
277  Display the indirect symbol table.
278
279.. option:: --info-plist
280
281  Display the info plist section as strings.
282
283.. option:: --lazy-bind
284
285  Display lazy binding info.
286
287.. option:: --link-opt-hints
288
289  Display the linker optimization hints.
290
291.. option:: -m, --macho
292
293  Use Mach-O specific object file parser. Commands and other options may behave
294  differently when used with ``--macho``.
295
296.. option:: --no-leading-headers
297
298  Do not print any leading headers.
299
300.. option:: --no-symbolic-operands
301
302  Do not print symbolic operands when disassembling.
303
304.. option:: --non-verbose
305
306  Display the information for Mach-O objects in non-verbose or numeric form.
307
308.. option:: --objc-meta-data
309
310  Display the Objective-C runtime meta data.
311
312.. option:: --private-header
313
314  Display only the first format specific file header.
315
316.. option:: --rebase
317
318  Display rebasing information.
319
320.. option:: --universal-headers
321
322  Display universal headers.
323
324.. option:: --weak-bind
325
326  Display weak binding information.
327
328XCOFF ONLY OPTIONS AND COMMANDS
329---------------------------------
330
331.. option:: --symbol-description
332
333  Add symbol description to disassembly output.
334
335BUGS
336----
337
338To report bugs, please visit <https://bugs.llvm.org/>.
339
340SEE ALSO
341--------
342
343:manpage:`llvm-nm(1)`, :manpage:`llvm-readelf(1)`, :manpage:`llvm-readobj(1)`
344