69 lines
2.3 KiB
Groff
69 lines
2.3 KiB
Groff
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.\"
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.\" Copyright (c) 1994 University of Maryland
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.\" All Rights Reserved.
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this software and its
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.\" documentation for any purpose is hereby granted without fee, provided that
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.\" the above copyright notice appear in all copies and that both that
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.\" copyright notice and this permission notice appear in supporting
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.\" documentation, and that the name of U.M. not be used in advertising or
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.\" publicity pertaining to distribution of the software without specific,
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.\" written prior permission. U.M. makes no representations about the
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.\" suitability of this software for any purpose. It is provided "as is"
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.\" without express or implied warranty.
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.\"
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.\" U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
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.\" BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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.\" IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.\" Author: James da Silva, Systems Design and Analysis Group
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.\" Computer Science Department
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.\" University of Maryland at College Park
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.\"
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.Dd June 14, 1994
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.Dt CRUNCHIDE 1
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.Os BSD 4
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.Sh NAME
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.Nm crunchide
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.Nd hides symbol names from ld, for crunching programs together
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.Sh SYNOPSIS
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.Nm crunchide
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.Op Fl f Ar keep-list-file
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.Op Fl k Ar keep-symbol
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.Op Ar object-file ...
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.Sh DESCRIPTION
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.Nm Crunchide
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hides the global symbols of
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.Ar object-file
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such that they are ignored by subsequent runs of the linker,
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.Xr ld 1 .
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Some symbols may be left visible via the
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.Fl k Ar keep-symbol
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and
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.Fl f Ar keep-list-file
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options. The
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.Ar keep-list-file
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must contain a list of symbols to keep visible, one symbol per line.
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Note that the C compiler prepends an underscore in front of
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symbols, so to keep the C function ``foo'' visible, the option
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\&``-k _foo'' must be used.
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.Pp
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.Nm Crunchide
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is designed as a companion program for
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.Xr crunchgen 1 ,
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which automates the process of creating crunched binaries from
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multiple component programs.
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.Sh SEE ALSO
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.Xr crunchgen 1 ,
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.Xr ld 1
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.Sh AUTHOR
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.Nm Crunch
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was written by James da Silva <jds@cs.umd.edu>.
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.sp 0
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Copyright (c) 1994 University of Maryland. All Rights Reserved.
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