1OBJDUMP(1) GNU Development Tools OBJDUMP(1)
2
6 objdump - display information from object files.
7
9 objdump [-a|--archive-headers]
10 [-b bfdname|--target=bfdname]
11 [-C|--demangle[=style] ]
12 [-d|--disassemble[=symbol]]
13 [-D|--disassemble-all]
14 [-z|--disassemble-zeroes]
15 [-EB|-EL|--endian={big | little }]
16 [-f|--file-headers]
17 [-F|--file-offsets]
18 [--file-start-context]
19 [-g|--debugging]
20 [-e|--debugging-tags]
21 [-h|--section-headers|--headers]
22 [-i|--info]
23 [-j section|--section=section]
24 [-l|--line-numbers]
25 [-S|--source]
26 [-m machine|--architecture=machine]
27 [-M options|--disassembler-options=options]
28 [-p|--private-headers]
29 [-P options|--private=options]
30 [-r|--reloc]
31 [-R|--dynamic-reloc]
32 [-s|--full-contents]
33 [-W[lLiaprmfFsoRtUuTgAckK]|
34 --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index,=addr,=cu_index,=links,=follow-links]]
35 [-G|--stabs]
36 [-t|--syms]
37 [-T|--dynamic-syms]
38 [-x|--all-headers]
39 [-w|--wide]
40 [--start-address=address]
41 [--stop-address=address]
42 [--prefix-addresses]
43 [--[no-]show-raw-insn]
44 [--adjust-vma=offset]
45 [--dwarf-depth=n]
46 [--dwarf-start=n]
47 [--no-recurse-limit|--recurse-limit]
48 [--special-syms]
49 [--prefix=prefix]
50 [--prefix-strip=level]
51 [--insn-width=width]
52 [-V|--version]
53 [-H|--help]
54 objfile...
55
57 objdump displays information about one or more object files. The
58 options control what particular information to display. This
59 information is mostly useful to programmers who are working on the
60 compilation tools, as opposed to programmers who just want their
61 program to compile and work.
62 objfile... are the object files to be examined. When you specify
64 archives, objdump shows information on each of the member object files.
65
67 The long and short forms of options, shown here as alternatives, are
68 equivalent. At least one option from the list
69 -a,-d,-D,-e,-f,-g,-G,-h,-H,-p,-P,-r,-R,-s,-S,-t,-T,-V,-x must be given.
70 -a
72 --archive-header
73 If any of the objfile files are archives, display the archive
74 header information (in a format similar to ls -l). Besides the
75 information you could list with ar tv, objdump -a shows the object
76 file format of each archive member.
77 --adjust-vma=offset
79 When dumping information, first add offset to all the section
80 addresses. This is useful if the section addresses do not
81 correspond to the symbol table, which can happen when putting
82 sections at particular addresses when using a format which can not
83 represent section addresses, such as a.out.
84 -b bfdname
86 --target=bfdname
87 Specify that the object-code format for the object files is
88 bfdname. This option may not be necessary; objdump can
89 automatically recognize many formats.
90 For example,
92 objdump -b oasys -m vax -h fu.o
94 displays summary information from the section headers (-h) of fu.o,
96 which is explicitly identified (-m) as a VAX object file in the
97 format produced by Oasys compilers. You can list the formats
98 available with the -i option.
99 -C
101 --demangle[=style]
102 Decode (demangle) low-level symbol names into user-level names.
103 Besides removing any initial underscore prepended by the system,
104 this makes C++ function names readable. Different compilers have
105 different mangling styles. The optional demangling style argument
106 can be used to choose an appropriate demangling style for your
107 compiler.
108 --recurse-limit
110 --no-recurse-limit
111 --recursion-limit
112 --no-recursion-limit
113 Enables or disables a limit on the amount of recursion performed
114 whilst demangling strings. Since the name mangling formats allow
115 for an inifinite level of recursion it is possible to create
116 strings whose decoding will exhaust the amount of stack space
117 available on the host machine, triggering a memory fault. The
118 limit tries to prevent this from happening by restricting recursion
119 to 2048 levels of nesting.
120 The default is for this limit to be enabled, but disabling it may
122 be necessary in order to demangle truly complicated names. Note
123 however that if the recursion limit is disabled then stack
124 exhaustion is possible and any bug reports about such an event will
125 be rejected.
126 -g
128 --debugging
129 Display debugging information. This attempts to parse STABS
130 debugging format information stored in the file and print it out
131 using a C like syntax. If no STABS debuging was found this option
132 falls back on the -W option to print any DWARF information in the
133 file.
134 -e
136 --debugging-tags
137 Like -g, but the information is generated in a format compatible
138 with ctags tool.
139 -d
141 --disassemble
142 --disassemble=symbol
143 Display the assembler mnemonics for the machine instructions from
144 the input file. This option only disassembles those sections which
145 are expected to contain instructions. If the optional symbol
146 argument is given, then display the assembler mnemonics starting at
147 symbol. If symbol is a function name then disassembly will stop at
148 the end of the function, otherwise it will stop when the next
149 symbol is encountered. If there are no matches for symbol then
150 nothing will be displayed.
151 -D
153 --disassemble-all
154 Like -d, but disassemble the contents of all sections, not just
155 those expected to contain instructions.
156 This option also has a subtle effect on the disassembly of
158 instructions in code sections. When option -d is in effect objdump
159 will assume that any symbols present in a code section occur on the
160 boundary between instructions and it will refuse to disassemble
161 across such a boundary. When option -D is in effect however this
162 assumption is supressed. This means that it is possible for the
163 output of -d and -D to differ if, for example, data is stored in
164 code sections.
165 If the target is an ARM architecture this switch also has the
167 effect of forcing the disassembler to decode pieces of data found
168 in code sections as if they were instructions.
169 --prefix-addresses
171 When disassembling, print the complete address on each line. This
172 is the older disassembly format.
173 -EB
175 -EL
176 --endian={big|little}
177 Specify the endianness of the object files. This only affects
178 disassembly. This can be useful when disassembling a file format
179 which does not describe endianness information, such as S-records.
180 -f
182 --file-headers
183 Display summary information from the overall header of each of the
184 objfile files.
185 -F
187 --file-offsets
188 When disassembling sections, whenever a symbol is displayed, also
189 display the file offset of the region of data that is about to be
190 dumped. If zeroes are being skipped, then when disassembly
191 resumes, tell the user how many zeroes were skipped and the file
192 offset of the location from where the disassembly resumes. When
193 dumping sections, display the file offset of the location from
194 where the dump starts.
195 --file-start-context
197 Specify that when displaying interlisted source code/disassembly
198 (assumes -S) from a file that has not yet been displayed, extend
199 the context to the start of the file.
200 -h
202 --section-headers
203 --headers
204 Display summary information from the section headers of the object
205 file.
206 File segments may be relocated to nonstandard addresses, for
208 example by using the -Ttext, -Tdata, or -Tbss options to ld.
209 However, some object file formats, such as a.out, do not store the
210 starting address of the file segments. In those situations,
211 although ld relocates the sections correctly, using objdump -h to
212 list the file section headers cannot show the correct addresses.
213 Instead, it shows the usual addresses, which are implicit for the
214 target.
215 Note, in some cases it is possible for a section to have both the
217 READONLY and the NOREAD attributes set. In such cases the NOREAD
218 attribute takes precedence, but objdump will report both since the
219 exact setting of the flag bits might be important.
220 -H
222 --help
223 Print a summary of the options to objdump and exit.
224 -i
226 --info
227 Display a list showing all architectures and object formats
228 available for specification with -b or -m.
229 -j name
231 --section=name
232 Display information only for section name.
233 -l
235 --line-numbers
236 Label the display (using debugging information) with the filename
237 and source line numbers corresponding to the object code or relocs
238 shown. Only useful with -d, -D, or -r.
239 -m machine
241 --architecture=machine
242 Specify the architecture to use when disassembling object files.
243 This can be useful when disassembling object files which do not
244 describe architecture information, such as S-records. You can list
245 the available architectures with the -i option.
246 If the target is an ARM architecture then this switch has an
248 additional effect. It restricts the disassembly to only those
249 instructions supported by the architecture specified by machine.
250 If it is necessary to use this switch because the input file does
251 not contain any architecture information, but it is also desired to
252 disassemble all the instructions use -marm.
253 -M options
255 --disassembler-options=options
256 Pass target specific information to the disassembler. Only
257 supported on some targets. If it is necessary to specify more than
258 one disassembler option then multiple -M options can be used or can
259 be placed together into a comma separated list.
260 For ARC, dsp controls the printing of DSP instructions, spfp
262 selects the printing of FPX single precision FP instructions, dpfp
263 selects the printing of FPX double precision FP instructions,
264 quarkse_em selects the printing of special QuarkSE-EM instructions,
265 fpuda selects the printing of double precision assist instructions,
266 fpus selects the printing of FPU single precision FP instructions,
267 while fpud selects the printing of FPU double precision FP
268 instructions. Additionally, one can choose to have all the
269 immediates printed in hexadecimal using hex. By default, the short
270 immediates are printed using the decimal representation, while the
271 long immediate values are printed as hexadecimal.
272 cpu=... allows to enforce a particular ISA when disassembling
274 instructions, overriding the -m value or whatever is in the ELF
275 file. This might be useful to select ARC EM or HS ISA, because
276 architecture is same for those and disassembler relies on private
277 ELF header data to decide if code is for EM or HS. This option
278 might be specified multiple times - only the latest value will be
279 used. Valid values are same as for the assembler -mcpu=... option.
280 If the target is an ARM architecture then this switch can be used
282 to select which register name set is used during disassembler.
283 Specifying -M reg-names-std (the default) will select the register
284 names as used in ARM's instruction set documentation, but with
285 register 13 called 'sp', register 14 called 'lr' and register 15
286 called 'pc'. Specifying -M reg-names-apcs will select the name set
287 used by the ARM Procedure Call Standard, whilst specifying -M reg-
288 names-raw will just use r followed by the register number.
289 There are also two variants on the APCS register naming scheme
291 enabled by -M reg-names-atpcs and -M reg-names-special-atpcs which
292 use the ARM/Thumb Procedure Call Standard naming conventions.
293 (Either with the normal register names or the special register
294 names).
295 This option can also be used for ARM architectures to force the
297 disassembler to interpret all instructions as Thumb instructions by
298 using the switch --disassembler-options=force-thumb. This can be
299 useful when attempting to disassemble thumb code produced by other
300 compilers.
301 For AArch64 targets this switch can be used to set whether
303 instructions are disassembled as the most general instruction using
304 the -M no-aliases option or whether instruction notes should be
305 generated as comments in the disasssembly using -M notes.
306 For the x86, some of the options duplicate functions of the -m
308 switch, but allow finer grained control. Multiple selections from
309 the following may be specified as a comma separated string.
310 "x86-64"
312 "i386"
313 "i8086"
314 Select disassembly for the given architecture.
315 "intel"
317 "att"
318 Select between intel syntax mode and AT&T syntax mode.
319 "amd64"
321 "intel64"
322 Select between AMD64 ISA and Intel64 ISA.
323 "intel-mnemonic"
325 "att-mnemonic"
326 Select between intel mnemonic mode and AT&T mnemonic mode.
327 Note: "intel-mnemonic" implies "intel" and "att-mnemonic"
328 implies "att".
329 "addr64"
331 "addr32"
332 "addr16"
333 "data32"
334 "data16"
335 Specify the default address size and operand size. These four
336 options will be overridden if "x86-64", "i386" or "i8086"
337 appear later in the option string.
338 "suffix"
340 When in AT&T mode, instructs the disassembler to print a
341 mnemonic suffix even when the suffix could be inferred by the
342 operands.
343 For PowerPC, the -M argument raw selects disasssembly of hardware
345 insns rather than aliases. For example, you will see "rlwinm"
346 rather than "clrlwi", and "addi" rather than "li". All of the -m
347 arguments for gas that select a CPU are supported. These are: 403,
348 405, 440, 464, 476, 601, 603, 604, 620, 7400, 7410, 7450, 7455,
349 750cl, 821, 850, 860, a2, booke, booke32, cell, com, e200z4, e300,
350 e500, e500mc, e500mc64, e500x2, e5500, e6500, efs, power4, power5,
351 power6, power7, power8, power9, ppc, ppc32, ppc64, ppc64bridge,
352 ppcps, pwr, pwr2, pwr4, pwr5, pwr5x, pwr6, pwr7, pwr8, pwr9, pwrx,
353 titan, and vle. 32 and 64 modify the default or a prior CPU
354 selection, disabling and enabling 64-bit insns respectively. In
355 addition, altivec, any, htm, vsx, and spe add capabilities to a
356 previous or later CPU selection. any will disassemble any opcode
357 known to binutils, but in cases where an opcode has two different
358 meanings or different arguments, you may not see the disassembly
359 you expect. If you disassemble without giving a CPU selection, a
360 default will be chosen from information gleaned by BFD from the
361 object files headers, but the result again may not be as you
362 expect.
363 For MIPS, this option controls the printing of instruction mnemonic
365 names and register names in disassembled instructions. Multiple
366 selections from the following may be specified as a comma separated
367 string, and invalid options are ignored:
368 "no-aliases"
370 Print the 'raw' instruction mnemonic instead of some pseudo
371 instruction mnemonic. I.e., print 'daddu' or 'or' instead of
372 'move', 'sll' instead of 'nop', etc.
373 "msa"
375 Disassemble MSA instructions.
376 "virt"
378 Disassemble the virtualization ASE instructions.
379 "xpa"
381 Disassemble the eXtended Physical Address (XPA) ASE
382 instructions.
383 "gpr-names=ABI"
385 Print GPR (general-purpose register) names as appropriate for
386 the specified ABI. By default, GPR names are selected
387 according to the ABI of the binary being disassembled.
388 "fpr-names=ABI"
390 Print FPR (floating-point register) names as appropriate for
391 the specified ABI. By default, FPR numbers are printed rather
392 than names.
393 "cp0-names=ARCH"
395 Print CP0 (system control coprocessor; coprocessor 0) register
396 names as appropriate for the CPU or architecture specified by
397 ARCH. By default, CP0 register names are selected according to
398 the architecture and CPU of the binary being disassembled.
399 "hwr-names=ARCH"
401 Print HWR (hardware register, used by the "rdhwr" instruction)
402 names as appropriate for the CPU or architecture specified by
403 ARCH. By default, HWR names are selected according to the
404 architecture and CPU of the binary being disassembled.
405 "reg-names=ABI"
407 Print GPR and FPR names as appropriate for the selected ABI.
408 "reg-names=ARCH"
410 Print CPU-specific register names (CP0 register and HWR names)
411 as appropriate for the selected CPU or architecture.
412 For any of the options listed above, ABI or ARCH may be specified
414 as numeric to have numbers printed rather than names, for the
415 selected types of registers. You can list the available values of
416 ABI and ARCH using the --help option.
417 For VAX, you can specify function entry addresses with -M
419 entry:0xf00ba. You can use this multiple times to properly
420 disassemble VAX binary files that don't contain symbol tables (like
421 ROM dumps). In these cases, the function entry mask would
422 otherwise be decoded as VAX instructions, which would probably lead
423 the rest of the function being wrongly disassembled.
424 -p
426 --private-headers
427 Print information that is specific to the object file format. The
428 exact information printed depends upon the object file format. For
429 some object file formats, no additional information is printed.
430 -P options
432 --private=options
433 Print information that is specific to the object file format. The
434 argument options is a comma separated list that depends on the
435 format (the lists of options is displayed with the help).
436 For XCOFF, the available options are:
438 "header"
440 "aout"
441 "sections"
442 "syms"
443 "relocs"
444 "lineno,"
445 "loader"
446 "except"
447 "typchk"
448 "traceback"
449 "toc"
450 "ldinfo"
451 Not all object formats support this option. In particular the ELF
453 format does not use it.
454 -r
456 --reloc
457 Print the relocation entries of the file. If used with -d or -D,
458 the relocations are printed interspersed with the disassembly.
459 -R
461 --dynamic-reloc
462 Print the dynamic relocation entries of the file. This is only
463 meaningful for dynamic objects, such as certain types of shared
464 libraries. As for -r, if used with -d or -D, the relocations are
465 printed interspersed with the disassembly.
466 -s
468 --full-contents
469 Display the full contents of any sections requested. By default
470 all non-empty sections are displayed.
471 -S
473 --source
474 Display source code intermixed with disassembly, if possible.
475 Implies -d.
476 --prefix=prefix
478 Specify prefix to add to the absolute paths when used with -S.
479 --prefix-strip=level
481 Indicate how many initial directory names to strip off the
482 hardwired absolute paths. It has no effect without --prefix=prefix.
483 --show-raw-insn
485 When disassembling instructions, print the instruction in hex as
486 well as in symbolic form. This is the default except when
487 --prefix-addresses is used.
488 --no-show-raw-insn
490 When disassembling instructions, do not print the instruction
491 bytes. This is the default when --prefix-addresses is used.
492 --insn-width=width
494 Display width bytes on a single line when disassembling
495 instructions.
496 -W[lLiaprmfFsoRtUuTgAckK]
498 --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index,=addr,=cu_index,=links,=follow-links]
499 Displays the contents of the DWARF debug sections in the file, if
500 any are present. Compressed debug sections are automatically
501 decompressed (temporarily) before they are displayed. If one or
502 more of the optional letters or words follows the switch then only
503 those type(s) of data will be dumped. The letters and words refer
504 to the following information:
505 "a"
507 "=abbrev"
508 Displays the contents of the .debug_abbrev section.
509 "A"
511 "=addr"
512 Displays the contents of the .debug_addr section.
513 "c"
515 "=cu_index"
516 Displays the contents of the .debug_cu_index and/or
517 .debug_tu_index sections.
518 "f"
520 "=frames"
521 Display the raw contents of a .debug_frame section.
522 "F"
524 "=frame-interp"
525 Display the interpreted contents of a .debug_frame section.
526 "g"
528 "=gdb_index"
529 Displays the contents of the .gdb_index and/or .debug_names
530 sections.
531 "i"
533 "=info"
534 Displays the contents of the .debug_info section. Note: the
535 output from this option can also be restricted by the use of
536 the --dwarf-depth and --dwarf-start options.
537 "k"
539 "=links"
540 Displays the contents of the .gnu_debuglink and/or
541 .gnu_debugaltlink sections. Also displays the link to a
542 separate dwarf object file (dwo), if one is specified by the
543 DW_AT_GNU_dwo_name or DW_AT_dwo_name attributes in the
544 .debug_info section.
545 "K"
547 "=follow-links"
548 Display the contents of any selected debug sections that are
549 found in a linked, separate debug info file. This can result
550 in multiple versions of the same debug section being displayed
551 if both the main file and the separate debug info file contain
552 sections with the same name.
553 In addition, when displaying DWARF attributes, if a form is
555 found that references the separate debug info file, then the
556 referenced contents will also be displayed.
557 "l"
559 "=rawline"
560 Displays the contents of the .debug_line section in a raw
561 format.
562 "L"
564 "=decodedline"
565 Displays the interpreted contents of the .debug_line section.
566 "m"
568 "=macro"
569 Displays the contents of the .debug_macro and/or .debug_macinfo
570 sections.
571 "o"
573 "=loc"
574 Displays the contents of the .debug_loc and/or .debug_loclists
575 sections.
576 "p"
578 "=pubnames"
579 Displays the contents of the .debug_pubnames and/or
580 .debug_gnu_pubnames sections.
581 "r"
583 "=aranges"
584 Displays the contents of the .debug_aranges section.
585 "R"
587 "=Ranges"
588 Displays the contents of the .debug_ranges and/or
589 .debug_rnglists sections.
590 "s"
592 "=str"
593 Displays the contents of the .debug_str, .debug_line_str and/or
594 .debug_str_offsets sections.
595 "t"
597 "=pubtype"
598 Displays the contents of the .debug_pubtypes and/or
599 .debug_gnu_pubtypes sections.
600 "T"
602 "=trace_aranges"
603 Displays the contents of the .trace_aranges section.
604 "u"
606 "=trace_abbrev"
607 Displays the contents of the .trace_abbrev section.
608 "U"
610 "=trace_info"
611 Displays the contents of the .trace_info section.
612 Note: displaying the contents of .debug_static_funcs,
614 .debug_static_vars and debug_weaknames sections is not currently
615 supported.
616 --dwarf-depth=n
618 Limit the dump of the ".debug_info" section to n children. This is
619 only useful with --debug-dump=info. The default is to print all
620 DIEs; the special value 0 for n will also have this effect.
621 With a non-zero value for n, DIEs at or deeper than n levels will
623 not be printed. The range for n is zero-based.
624 --dwarf-start=n
626 Print only DIEs beginning with the DIE numbered n. This is only
627 useful with --debug-dump=info.
628 If specified, this option will suppress printing of any header
630 information and all DIEs before the DIE numbered n. Only siblings
631 and children of the specified DIE will be printed.
632 This can be used in conjunction with --dwarf-depth.
634 --dwarf-check
636 Enable additional checks for consistency of Dwarf information.
637 -G
639 --stabs
640 Display the full contents of any sections requested. Display the
641 contents of the .stab and .stab.index and .stab.excl sections from
642 an ELF file. This is only useful on systems (such as Solaris 2.0)
643 in which ".stab" debugging symbol-table entries are carried in an
644 ELF section. In most other file formats, debugging symbol-table
645 entries are interleaved with linkage symbols, and are visible in
646 the --syms output.
647 --start-address=address
649 Start displaying data at the specified address. This affects the
650 output of the -d, -r and -s options.
651 --stop-address=address
653 Stop displaying data at the specified address. This affects the
654 output of the -d, -r and -s options.
655 -t
657 --syms
658 Print the symbol table entries of the file. This is similar to the
659 information provided by the nm program, although the display format
660 is different. The format of the output depends upon the format of
661 the file being dumped, but there are two main types. One looks
662 like this:
663 [ 4](sec 3)(fl 0x00)(ty 0)(scl 3) (nx 1) 0x00000000 .bss
665 [ 6](sec 1)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000 fred
666 where the number inside the square brackets is the number of the
668 entry in the symbol table, the sec number is the section number,
669 the fl value are the symbol's flag bits, the ty number is the
670 symbol's type, the scl number is the symbol's storage class and the
671 nx value is the number of auxilary entries associated with the
672 symbol. The last two fields are the symbol's value and its name.
673 The other common output format, usually seen with ELF based files,
675 looks like this:
676 00000000 l d .bss 00000000 .bss
678 00000000 g .text 00000000 fred
679 Here the first number is the symbol's value (sometimes refered to
681 as its address). The next field is actually a set of characters
682 and spaces indicating the flag bits that are set on the symbol.
683 These characters are described below. Next is the section with
684 which the symbol is associated or *ABS* if the section is absolute
685 (ie not connected with any section), or *UND* if the section is
686 referenced in the file being dumped, but not defined there.
687 After the section name comes another field, a number, which for
689 common symbols is the alignment and for other symbol is the size.
690 Finally the symbol's name is displayed.
691 The flag characters are divided into 7 groups as follows:
693 "l"
695 "g"
696 "u"
697 "!" The symbol is a local (l), global (g), unique global (u),
698 neither global nor local (a space) or both global and local
699 (!). A symbol can be neither local or global for a variety of
700 reasons, e.g., because it is used for debugging, but it is
701 probably an indication of a bug if it is ever both local and
702 global. Unique global symbols are a GNU extension to the
703 standard set of ELF symbol bindings. For such a symbol the
704 dynamic linker will make sure that in the entire process there
705 is just one symbol with this name and type in use.
706 "w" The symbol is weak (w) or strong (a space).
708 "C" The symbol denotes a constructor (C) or an ordinary symbol (a
710 space).
711 "W" The symbol is a warning (W) or a normal symbol (a space). A
713 warning symbol's name is a message to be displayed if the
714 symbol following the warning symbol is ever referenced.
715 "I"
717 "i" The symbol is an indirect reference to another symbol (I), a
718 function to be evaluated during reloc processing (i) or a
719 normal symbol (a space).
720 "d"
722 "D" The symbol is a debugging symbol (d) or a dynamic symbol (D) or
723 a normal symbol (a space).
724 "F"
726 "f"
727 "O" The symbol is the name of a function (F) or a file (f) or an
728 object (O) or just a normal symbol (a space).
729 -T
731 --dynamic-syms
732 Print the dynamic symbol table entries of the file. This is only
733 meaningful for dynamic objects, such as certain types of shared
734 libraries. This is similar to the information provided by the nm
735 program when given the -D (--dynamic) option.
736 The output format is similar to that produced by the --syms option,
738 except that an extra field is inserted before the symbol's name,
739 giving the version information associated with the symbol. If the
740 version is the default version to be used when resolving
741 unversioned references to the symbol then it's displayed as is,
742 otherwise it's put into parentheses.
743 --special-syms
745 When displaying symbols include those which the target considers to
746 be special in some way and which would not normally be of interest
747 to the user.
748 -V
750 --version
751 Print the version number of objdump and exit.
752 -x
754 --all-headers
755 Display all available header information, including the symbol
756 table and relocation entries. Using -x is equivalent to specifying
757 all of -a -f -h -p -r -t.
758 -w
760 --wide
761 Format some lines for output devices that have more than 80
762 columns. Also do not truncate symbol names when they are
763 displayed.
764 -z
766 --disassemble-zeroes
767 Normally the disassembly output will skip blocks of zeroes. This
768 option directs the disassembler to disassemble those blocks, just
769 like any other data.
770 @file
772 Read command-line options from file. The options read are inserted
773 in place of the original @file option. If file does not exist, or
774 cannot be read, then the option will be treated literally, and not
775 removed.
776 Options in file are separated by whitespace. A whitespace
778 character may be included in an option by surrounding the entire
779 option in either single or double quotes. Any character (including
780 a backslash) may be included by prefixing the character to be
781 included with a backslash. The file may itself contain additional
782 @file options; any such options will be processed recursively.
783
785 nm(1), readelf(1), and the Info entries for binutils.
786
788 Copyright (c) 1991-2019 Free Software Foundation, Inc.
789 Permission is granted to copy, distribute and/or modify this document
791 under the terms of the GNU Free Documentation License, Version 1.3 or
792 any later version published by the Free Software Foundation; with no
793 Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
794 Texts. A copy of the license is included in the section entitled "GNU
795 Free Documentation License".
796binutils-2.31.90 2019-01-19 OBJDUMP(1)