1LLVM-OBJDUMP(1)                      LLVM                      LLVM-OBJDUMP(1)
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NAME

6       llvm-objdump - LLVM's object file dumper
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SYNOPSIS

9       llvm-objdump [commands] [options] [filenames...]
10

DESCRIPTION

12       The  llvm-objdump utility prints the contents of object files and final
13       linked images named on the command line. If no file name is  specified,
14       llvm-objdump  will  attempt  to read from a.out. If - is used as a file
15       name, llvm-objdump will process a file on its standard input stream.
16

COMMANDS

18       At least one of the following commands are required, and some  commands
19       can be combined with other commands:
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21       -a, --archive-headers
22              Display the information contained within an archive's headers.
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24       -d, --disassemble
25              Disassemble all text sections found in the input files.
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27       -D, --disassemble-all
28              Disassemble all sections found in the input files.
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30       --disassemble-symbols=<symbol1[,symbol2,...]>
31              Disassemble  only  the specified symbols. Takes demangled symbol
32              names when --demangle is specified, otherwise takes mangled sym‐
33              bol names.  Implies --disassemble.
34
35       --dwarf=<value>
36              Dump  the  specified  DWARF debug sections. The supported values
37              are:
38
39              frames - .debug_frame
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41       -f, --file-headers
42              Display the contents of the overall file header.
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44       --fault-map-section
45              Display the content of the fault map section.
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47       -h, --headers, --section-headers
48              Display summaries of the headers for each section.
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50       --help Display usage information and exit. Does not  stack  with  other
51              commands.
52
53       -p, --private-headers
54              Display format-specific file headers.
55
56       -r, --reloc
57              Display the relocation entries in the file.
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59       -R, --dynamic-reloc
60              Display the dynamic relocation entries in the file.
61
62       --raw-clang-ast
63              Dump the raw binary contents of the clang AST section.
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65       -s, --full-contents
66              Display the contents of each section.
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68       -t, --syms
69              Display the symbol table.
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71       -T, --dynamic-syms
72              Display the contents of the dynamic symbol table.
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74       -u, --unwind-info
75              Display the unwind info of the input(s).
76
77       --version
78              Display  the  version  of  the llvm-objdump executable. Does not
79              stack with other commands.
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81       -x, --all-headers
82              Display all available header information. Equivalent to specify‐
83              ing    --archive-headers,   --file-headers,   --private-headers,
84              --reloc, --section-headers, and --syms.
85

OPTIONS

87       llvm-objdump supports the following options:
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89       --adjust-vma=<offset>
90              Increase the displayed address in disassembly or section  header
91              printing by the specified offset.
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93       --arch-name=<string>
94              Specify   the   target   architecture  when  disassembling.  Use
95              --version for a list of available targets.
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97       -C, --demangle
98              Demangle symbol names in the output.
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100       --debug-vars=<format>
101              Print the locations (in registers  or  memory)  of  source-level
102              variables alongside disassembly. format may be unicode or ascii,
103              defaulting to unicode if omitted.
104
105       --debug-vars-indent=<width>
106              Distance to indent the source-level variable  display,  relative
107              to the start of the disassembly. Defaults to 40 characters.
108
109       -j, --section=<section1[,section2,...]>
110              Perform  commands on the specified sections only. For Mach-O use
111              segment,section to specify the section name.
112
113       -l, --line-numbers
114              When  disassembling,  display  source  line   numbers.   Implies
115              --disassemble.
116
117       -M, --disassembler-options=<opt1[,opt2,...]>
118              Pass  target-specific  disassembler options. Currently supported
119              for ARM targets only. Available options  are  reg-names-std  and
120              reg-names-raw.
121
122       --mcpu=<cpu-name>
123              Target  a specific CPU type for disassembly. Specify --mcpu=help
124              to display available CPUs.
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126       --mattr=<a1,+a2,-a3,...>
127              Enable/disable target-specific attributes. Specify  --mattr=help
128              to display the available attributes.
129
130       --no-leading-addr
131              When disassembling, do not print leading addresses.
132
133       --no-show-raw-insn
134              When  disassembling, do not print the raw bytes of each instruc‐
135              tion.
136
137       --prefix=<prefix>
138              When disassembling with the --source option, prepend  prefix  to
139              absolute paths.
140
141       --print-imm-hex
142              Use  hex  format  when  printing immediate values in disassembly
143              output.
144
145       -S, --source
146              When disassembling, display source interleaved with  the  disas‐
147              sembly. Implies --disassemble.
148
149       --show-lma
150              Display  the  LMA  column  when dumping ELF section headers. De‐
151              faults to off unless any section has different VMA and LMAs.
152
153       --start-address=<address>
154              When disassembling, only disassemble from the specified address.
155
156              When printing relocations, only print the  relocations  patching
157              offsets from at least address.
158
159              When  printing  symbols,  only  print symbols with a value of at
160              least address.
161
162       --stop-address=<address>
163              When disassembling, only disassemble up to,  but  not  including
164              the specified address.
165
166              When  printing  relocations, only print the relocations patching
167              offsets up to address.
168
169              When printing symbols, only print symbols with a value up to ad‐
170              dress.
171
172       --symbolize-operands
173              When disassembling, symbolize a branch target operand to print a
174              label instead of a real address.
175
176              When printing a PC-relative global symbol reference, print it as
177              an offset from the leading symbol.
178
179              Only works with an X86 linked image.
180
181              Example:
182                     A  non-symbolized  branch instruction with a local target
183                     and pc-relative memory access like
184
185                 cmp eax, dword ptr [rip + 4112]
186                 jge 0x20117e <_start+0x25>
187
188              might become
189
190                 <L0>:
191                   cmp eax, dword ptr <g>
192                   jge      <L0>
193
194       --triple=<string>
195              Target triple to disassemble for, see  --version  for  available
196              targets.
197
198       -w, --wide
199              Ignored for compatibility with GNU objdump.
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201       --x86-asm-syntax=<style>
202              When  used with --disassemble, choose style of code to emit from
203              X86 backend. Supported values are:
204
205                 att    AT&T-style assembly
206
207                 intel  Intel-style assembly
208
209              The default disassembly style is att.
210
211       -z, --disassemble-zeroes
212              Do not skip blocks of zeroes when disassembling.
213
214       @<FILE>
215              Read  command-line  options  and  commands  from  response  file
216              <FILE>.
217

MACH-O ONLY OPTIONS AND COMMANDS

219       --arch=<architecture>
220              Specify  the  architecture  to  disassemble.  see  --version for
221              available architectures.
222
223       --archive-member-offsets
224              Print the offset to each archive member for Mach-O archives (re‐
225              quires --archive-headers).
226
227       --bind Display binding info
228
229       --cfg  Create a CFG for every symbol in the object file and write it to
230              a graphviz file.
231
232       --data-in-code
233              Display the data in code table.
234
235       --dis-symname=<name>
236              Disassemble just the specified symbol's instructions.
237
238       --dylibs-used
239              Display the shared libraries used for linked files.
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241       --dsym=<string>
242              Use .dSYM file for debug info.
243
244       --dylib-id
245              Display the shared library's ID for dylib files.
246
247       --exports-trie
248              Display exported symbols.
249
250       -g     Print line information from debug info if available.
251
252       --full-leading-addr
253              Print the full leading address when disassembling.
254
255       --indirect-symbols
256              Display the indirect symbol table.
257
258       --info-plist
259              Display the info plist section as strings.
260
261       --lazy-bind
262              Display lazy binding info.
263
264       --link-opt-hints
265              Display the linker optimization hints.
266
267       -m, --macho
268              Use Mach-O specific object file parser. Commands and  other  op‐
269              tions may behave differently when used with --macho.
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271       --no-leading-headers
272              Do not print any leading headers.
273
274       --no-symbolic-operands
275              Do not print symbolic operands when disassembling.
276
277       --non-verbose
278              Display the information for Mach-O objects in non-verbose or nu‐
279              meric form.
280
281       --objc-meta-data
282              Display the Objective-C runtime meta data.
283
284       --private-header
285              Display only the first format specific file header.
286
287       --rebase
288              Display rebasing information.
289
290       --universal-headers
291              Display universal headers.
292
293       --weak-bind
294              Display weak binding information.
295

XCOFF ONLY OPTIONS AND COMMANDS

297       --symbol-description
298              Add symbol description to disassembly output.
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BUGS

301       To report bugs, please visit <https://bugs.llvm.org/>.
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SEE ALSO

304       llvm-nm(1), llvm-readelf(1), llvm-readobj(1)
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AUTHOR

307       Maintained by the LLVM Team (https://llvm.org/).
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310       2003-2021, LLVM Project
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31512                                2021-05-17                   LLVM-OBJDUMP(1)
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