1.\" $NetBSD: crunchide.1,v 1.17 2014/03/18 18:20:44 riastradh Exp $ 2.\" 3.\" Copyright (c) 1994 University of Maryland 4.\" All Rights Reserved. 5.\" 6.\" Permission to use, copy, modify, distribute, and sell this software and its 7.\" documentation for any purpose is hereby granted without fee, provided that 8.\" the above copyright notice appear in all copies and that both that 9.\" copyright notice and this permission notice appear in supporting 10.\" documentation, and that the name of U.M. not be used in advertising or 11.\" publicity pertaining to distribution of the software without specific, 12.\" written prior permission. U.M. makes no representations about the 13.\" suitability of this software for any purpose. It is provided "as is" 14.\" without express or implied warranty. 15.\" 16.\" U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M. 18.\" BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 19.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 20.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR 21.\" IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 22.\" 23.\" Author: James da Silva, Systems Design and Analysis Group 24.\" Computer Science Department 25.\" University of Maryland at College Park 26.\" 27.Dd June 14, 1994 28.Dt CRUNCHIDE 1 29.Os 30.Sh NAME 31.Nm crunchide 32.Nd hides symbol names from ld, for crunching programs together 33.Sh SYNOPSIS 34.Nm 35.Op Fl f Ar keep-list-file 36.Op Fl k Ar keep-symbol 37.Ar object-file 38.Op Ar object-file ... 39.Sh DESCRIPTION 40.Nm 41hides the global symbols of 42.Ar object-file 43such that they are ignored by subsequent runs of the linker, 44.Xr ld 1 . 45Some symbols may be left visible via the 46.Fl k Ar keep-symbol 47and 48.Fl f Ar keep-list-file 49options. 50The 51.Ar keep-list-file 52must contain a list of symbols to keep visible, one symbol per line. 53The names given by 54.Ar keep-symbol 55or in 56.Ar keep-list-file 57should be C names. 58For example, to keep the C function 59.Dq foo 60visible, the option 61.Dq -k foo 62should be used. 63.Pp 64.Nm 65is designed as a companion program for 66.Xr crunchgen 1 , 67which automates the process of creating crunched binaries from 68multiple component programs. 69.Sh SEE ALSO 70.Xr crunchgen 1 , 71.Xr ld 1 72.Sh AUTHORS 73.Nm 74was written by 75.An James da Silva Aq Mt jds@cs.umd.edu . 76.Pp 77Copyright (c) 1994 University of Maryland. 78All Rights Reserved. 79.Pp 80Chris Demetriou 81.Aq cgd@NetBSD.org 82reorganized 83.Nm 84so that it supported multiple object formats, and added 85ELF object support and ECOFF object recognition. 86.Pp 87Copyright (c) 1997 Christopher G. Demetriou. 88All Rights Reserved. 89