binutils/objcopy.1

   1 .\" Copyright (c) 1991 Free Software Foundation
   2 .\" See section COPYING for conditions for redistribution
   3 .TH objcopy 1 "June 1993" "cygnus support" "GNU Development Tools"
   4 .de BP
   5 .sp
   6 .ti \-.2i
   7 \(**
   8 ..
   9
  10 .SH NAME
  11 objcopy \- copy and translate object files
  12
  13 .SH SYNOPSIS
  14 .hy 0
  15 .na
  16 .TP
  17 .B objcopy
  18 .RB "[\|" \-F\ \fIbfdname\fB\ |\ \-\-target=\fIbfdname\fR "\|]"
  19 .RB "[\|" \-I\ \fIbfdname\fB\ |\ \-\-input\-target=\fIbfdname\fR "\|]"
  20 .RB "[\|" \-O\ \fIbfdname\fB\ |\ \-\-output\-target=\fIbfdname\fR "\|]"
  21 .RB "[\|" \-R\ \fIsectionname\fB\ |\ \-\-remove\-section=\fIsectionname\fR "\|]"
  22 .RB "[\|" \-S\ |\ \-\-strip\-all\fR "\|]"
  23 .RB "[\|" \-g\ |\ \-\-strip\-debug\fR "\|]"
  24 .RB "[\|" \-x\ |\ \-\-discard\-all\fR "\|]"
  25 .RB "[\|" \-X\ |\ \-\-discard\-locals\fR "\|]"
  26 .RB  "[\|" \-b\ \fIbyte\fP |\ \-\-byte=\fIbyte\fP "\|]"
  27 .RB  "[\|" \-i\ \fIinterleave\fP |\ \-\-interleave=\fIinterleave\fP "\|]"
  28 .RB "[\|" \-v\ |\ \-\-verbose\fR "\|]"
  29 .RB "[\|" \-V\ |\ \-\-version\fR "\|]"
  30 .RB "[\|" \-\-help\fR "\|]"
  31 .B infile
  32 .RB "[\|" outfile\fR "\|]"
  33 .SH DESCRIPTION
  34 The GNU
  35 .B objcopy
  36 utility copies the contents of an object file to another.
  37 .B objcopy
  38 uses the GNU BFD Library to read and write the object files.  It can
  39 write the destination object file in a format different from that of
  40 the source object file.  The exact behavior of
  41 .B objcopy
  42 is controlled by command-line options.
  43 .PP
  44 .B objcopy
  45 creates temporary files to do its translations and deletes them
  46 afterward.
  47 .B objcopy
  48 uses BFD to do all its translation work; it knows about all the
  49 formats BFD knows about, and thus is able to recognize most formats
  50 without being told explicitly.
  51 .PP
  52 .I infile
  53 and
  54 .I outfile
  55 are the source and output files respectively.  If you do not specify
  56 .IR outfile ,
  57 .B objcopy
  58 creates a temporary file and destructively renames the result with the
  59 name of the input file.
  60
  61 .SH OPTIONS
  62 .TP
  63 .B \-I \fIbfdname\fR, \fB\-\-input\-target=\fIbfdname
  64 Consider the source file's object format to be
  65 .IR bfdname ,
  66 rather than attempting to deduce it.
  67 .TP
  68 .B \-O \fIbfdname\fR, \fB\-\-output\-target=\fIbfdname
  69 Write the output file using the object format
  70 .IR bfdname .
  71 .TP
  72 .B \-F \fIbfdname\fR, \fB\-\-target=\fIbfdname
  73 Use
  74 .I bfdname
  75 as the object format for both the input and the output file; i.e.
  76 simply transfer data from source to destination with no translation.
  77 .TP
  78 .B \-R \fIsectionname\fR, \fB\-\-remove-section=\fIsectionname
  79 Remove the named section from the file.  This option may be given more
  80 than once.  Note that using this option inappropriately may make the
  81 output file unusable.
  82 .TP
  83 .B \-S\fR, \fB\-\-strip\-all
  84 Do not copy relocation and symbol information from the source file.
  85 .TP
  86 .B \-g\fR, \fB\-\-strip\-debug
  87 Do not copy debugging symbols from the source file.
  88 .TP
  89 .B \-x\fR, \fB \-\-discard\-all
  90 Do not copy non-global symbols from the source file.
  91 .TP
  92 .B \-X\fR, \fB\-\-discard\-locals
  93 Do not copy compiler-generated local symbols. (These usually start
  94 with "L" or ".").
  95 .TP
  96 .B \-b \fIbyte\fR, \fB\-\-byte=\fIbyte
  97 Keep only every \fIbyte\fPth byte of the input file (header data is
  98 not affected).  \fIbyte\fP can be in the range from 0 to the
  99 interleave-1.  This option is useful for creating files to program
 100 ROMs.  It is typically used with an srec output target.
 101 .TP
 102 .B \-i \fIinterleave\fR, \fB\-\-interleave=\fIinterleave
 103 Only copy one out of every \fIinterleave\fP bytes.  Which one to copy is
 104 selected by the \fB\-b\fP or \fB\-\-byte\fP option.  The default is 4.
 105 The interleave is ignored if neither \fB\-b\fP nor \fB\-\-byte\fP is given.
 106 .TP
 107 .B \-v\fR, \fB\-\-verbose
 108 Verbose output: list all object files modified.  In the case of
 109 archives, "\fBobjcopy \-V\fR" lists all members of the archive.
 110 .TP
 111 .B \-V\fR, \fB\-\-version
 112 Show the version number of
 113 .B objcopy
 114 and exit.
 115 .TP
 116 .B \-\-help
 117 Show a summary of the options to
 118 .B objcopy
 119 and exit.
 120 .SH "SEE ALSO"
 121 .RB "`\|" binutils "\|'"
 122 entry in
 123 .B
 124 info\c
 125 \&;
 126 .I
 127 The GNU Binary Utilities\c
 128 \&, Roland H. Pesch (June 1993).
 129
 130 .SH COPYING
 131 Copyright (c) 1993 Free Software Foundation, Inc.
 132 .PP
 133 Permission is granted to make and distribute verbatim copies of
 134 this manual provided the copyright notice and this permission notice
 135 are preserved on all copies.
 136 .PP
 137 Permission is granted to copy and distribute modified versions of this
 138 manual under the conditions for verbatim copying, provided that the
 139 entire resulting derived work is distributed under the terms of a
 140 permission notice identical to this one.
 141 .PP
 142 Permission is granted to copy and distribute translations of this
 143 manual into another language, under the above conditions for modified
 144 versions, except that this permission notice may be included in
 145 translations approved by the Free Software Foundation instead of in
 146 the original English.