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67c8c90141
(usage): Mention -EB/-EL/--endian. (long_options): Add "endian". (disassemble_data): If endianness was specified, replace abfd->xvec with a copy of itself with the given endianness. (main): Handle -EB/-EL/--endian. * binutils.texi, objdump.1: Mention -EB/-EL/--endian.
360 lines
7.9 KiB
Groff
360 lines
7.9 KiB
Groff
.\" Copyright (c) 1991, 1996 Free Software Foundation
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.\" See section COPYING for conditions for redistribution
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.TH objdump 1 "5 November 1991" "cygnus support" "GNU Development Tools"
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.de BP
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.sp
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.ti \-.2i
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\(**
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..
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.SH NAME
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objdump \- display information from object files.
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.SH SYNOPSIS
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.hy 0
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.na
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.TP
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.B objdump
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.RB "[\|" \-a | \-\-archive\-headers "\|]"
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.RB "[\|" "\-b\ "\c
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.I bfdname\c
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.RB " | " "\-\-target="\c
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.I bfdname\c
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\&\|]
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.RB "[\|" \-\-debugging "\|]"
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.RB "[\|" \-d | \-\-disassemble "\|]"
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.RB "[\|" \-D | \-\-disassemble-all "\|]"
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.RB "[\|" \-EB | \-EL | \-\-endian=\c
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.I {big|little}\c
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\&\|]
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.RB "[\|" \-f | \-\-file\-headers "\|]"
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.RB "[\|" \-h | \-\-section\-headers
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.RB "| " \-\-headers "\|]"
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.RB "[\|" \-i | \-\-info "\|]"
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.RB "[\|" "\-j\ "\c
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.I section\c
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.RB " | " "\-\-section="\c
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.I section\c
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\&\|]
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.RB "[\|" \-l | \-\-line\-numbers "\|]"
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.RB "[\|" "\-m\ "\c
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.I machine\c
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.RB " | " "\-\-architecture="\c
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.I machine\c
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\&\|]
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.RB "[\|" \-r | \-\-reloc "\|]"
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.RB "[\|" \-R | \-\-dynamic\-reloc "\|]"
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.RB "[\|" \-s | \-\-full\-contents "\|]"
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.RB "[\|" \-S | \-\-source "\|]"
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.RB "[\|" \-\-show\-raw\-insn "\|]"
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.RB "[\|" \-\-stabs "\|]"
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.RB "[\|" \-t | \-\-syms "\|]"
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.RB "[\|" \-T | \-\-dynamic\-syms "\|]"
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.RB "[\|" \-x | \-\-all\-headers "\|]"
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.RB "[\|" "\-\-start\-address="\c
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.I address\c
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\&\|]
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.RB "[\|" "\-\-stop\-address="\c
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.I address\c
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\&\|]
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.RB "[\|" \-\-version "\|]"
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.RB "[\|" \-\-help "\|]"
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.I objfile\c
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\&.\|.\|.
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.ad b
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.hy 1
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.SH DESCRIPTION
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\c
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.B objdump\c
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\& displays information about one or more object files.
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The options control what particular information to display. This
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information is mostly useful to programmers who are working on the
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compilation tools, as opposed to programmers who just want their
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program to compile and work.
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.PP
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.IR "objfile" .\|.\|.
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are the object files to be examined. When you specify archives,
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\c
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.B objdump\c
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\& shows information on each of the member object files.
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.SH OPTIONS
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Where long and short forms of an option are shown together, they are
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equivalent. At least one option besides
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.B \-l
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(\fB\-\-line\-numbers\fP) must be given.
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.TP
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.B \-a
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.TP
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.B \-\-archive\-headers
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If any files from \c
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.I objfile\c
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\& are archives, display the archive
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header information (in a format similar to `\|\c
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.B ls \-l\c
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\|'). Besides the
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information you could list with `\|\c
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.B ar tv\c
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\|', `\|\c
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.B objdump \-a\c
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\|' shows
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the object file format of each archive member.
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.TP
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.BI "\-b " "bfdname"\c
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.TP
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.BI "\-\-target=" "bfdname"
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Specify the object-code format for the object files to be
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\c
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.I bfdname\c
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\&. This may not be necessary; \c
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.I objdump\c
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\& can
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automatically recognize many formats. For example,
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.sp
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.br
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objdump\ \-b\ oasys\ \-m\ vax\ \-h\ fu.o
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.br
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.sp
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display summary information from the section headers (`\|\c
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.B \-h\c
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\|') of
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`\|\c
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.B fu.o\c
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\|', which is explicitly identified (`\|\c
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.B \-m\c
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\|') as a Vax object
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file in the format produced by Oasys compilers. You can list the
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formats available with the `\|\c
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.B \-i\c
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\|' option.
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.TP
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.B \-\-debugging
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Display debugging information. This attempts to parse debugging
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information stored in the file and print it out using a C like syntax.
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Only certain types of debugging information have been implemented.
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.TP
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.B \-d
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.TP
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.B \-\-disassemble
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Display the assembler mnemonics for the machine
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instructions from \c
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.I objfile\c
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\&.
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This option only disassembles those sections which are
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expected to contain instructions.
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.TP
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.B \-D
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.TP
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.B \-\-disassemble-all
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Like \fB\-d\fP, but disassemble the contents of all sections, not just
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those expected to contain instructions.
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.TP
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.B \-EB
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.TP
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.B \-EL
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.TP
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.BI "\-\-endian=" "{big|little}"
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Specify the endianness of the object files. This only affects
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disassembly. This can be useful when disassembling a file format which
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does not describe endianness information, such as S-records.
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.TP
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.B \-f
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.TP
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.B \-\-file\-headers
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Display summary information from the overall header of
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each file in \c
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.I objfile\c
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\&.
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.TP
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.B \-h
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.TP
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.B \-\-section\-headers
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.TP
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.B \-\-headers
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Display summary information from the section headers of the
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object file.
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.TP
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.B \-\-help
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Print a summary of the options to
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.B objdump
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and exit.
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.TP
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.B \-i
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.TP
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.B \-\-info
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Display a list showing all architectures and object formats available
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for specification with \c
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.B \-b\c
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\& or \c
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.B \-m\c
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\&.
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.TP
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.BI "\-j " "name"\c
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.TP
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.BI "\-\-section=" "name"
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Display information only for section \c
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.I name\c
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\&.
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.TP
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.B \-l
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.TP
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.B \-\-line\-numbers
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Label the display (using debugging information) with the filename
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and source line numbers corresponding to the object code shown.
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Only useful with \fB\-d\fP, \fB\-D\fP, or \fB\-r\fP.
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.TP
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.BI "\-m " "machine"\c
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.TP
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.BI "\-\-architecture=" "machine"
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Specify the architecture to use when disassembling object files. This
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can be useful when disasembling object files which do not describe
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architecture information, such as S-records. You can list the available
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architectures with the \fB\-i\fP option.
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.TP
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.B \-r
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.TP
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.B \-\-reloc
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Print the relocation entries of the file. If used with \fB\-d\fP or
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\fB\-d\fP, the relocations are printed interspersed with the
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disassembly.
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.TP
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.B \-R
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.TP
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.B \-\-dynamic\-reloc
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Print the dynamic relocation entries of the file. This is only
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meaningful for dynamic objects, such as certain types of shared
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libraries.
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.TP
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.B \-s
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.TP
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.B \-\-full\-contents
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Display the full contents of any sections requested.
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.TP
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.B \-S
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.TP
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.B \-\-source
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Display source code intermixed with disassembly, if possible. Implies
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\fB-d\fP.
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.TP
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.B \-\-show-raw-insn
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When disassembling instructions, print the instruction in hex as well as
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in symbolic form. Not all targets handle this correctly yet.
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.TP
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.B \-\-stabs
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Display the contents of the .stab, .stab.index, and .stab.excl
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sections from an ELF file. This is only useful on systems (such as
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Solaris 2.0) in which .stab debugging symbol-table entries are carried
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in an ELF section. In most other file formats, debugging symbol-table
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entries are interleaved with linkage symbols, and are visible in the
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\-\-syms output.
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.TP
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.BI "\-\-start\-address=" "address"
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Start displaying data at the specified address. This affects the output
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of the
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.B \-d\c
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,
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.B \-r
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and
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.B \-s
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options.
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.TP
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.BI "\-\-stop\-address=" "address"
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Stop displaying data at the specified address. This affects the output
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of the
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.B \-d\c
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,
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.B \-r
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and
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.B \-s
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options.
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.TP
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.B \-t
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.TP
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.B \-\-syms
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Symbol Table. Print the symbol table entries of the file.
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This is similar to the information provided by the `\|\c
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.B nm\c
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\|' program.
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.TP
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.B \-T
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.TP
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.B \-\-dynamic\-syms
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Dynamic Symbol Table. Print the dynamic symbol table entries of the
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file. This is only meaningful for dynamic objects, such as certain
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types of shared libraries. This is similar to the information
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provided by the `\|\c
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.B nm\c
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\|' program when given the
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.B \-D (\-\-dynamic)
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option.
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.TP
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.B \-\-version
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Print the version number of
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.B objdump
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and exit.
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.TP
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.B \-x
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.TP
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.B \-\-all\-headers
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Display all available header information, including the symbol table and
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relocation entries. Using `\|\c
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.B \-x\c
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\|' is equivalent to specifying all of
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`\|\c
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.B \-a \-f \-h \-r \-t\c
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\|'.
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.SH "SEE ALSO"
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.RB "`\|" binutils "\|'"
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entry in
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.B
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info\c
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\&;
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.I
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The GNU Binary Utilities\c
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\&, Roland H. Pesch (October 1991);
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.BR nm "(" 1 ")."
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.SH COPYING
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Copyright (c) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
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.PP
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Permission is granted to make and distribute verbatim copies of
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this manual provided the copyright notice and this permission notice
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are preserved on all copies.
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.PP
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Permission is granted to copy and distribute modified versions of this
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manual under the conditions for verbatim copying, provided that the
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entire resulting derived work is distributed under the terms of a
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permission notice identical to this one.
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.PP
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Permission is granted to copy and distribute translations of this
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manual into another language, under the above conditions for modified
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versions, except that this permission notice may be included in
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translations approved by the Free Software Foundation instead of in
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the original English.
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