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get_func.c
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C/C++ Source or Header
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1996-09-28
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1KB
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61 lines
/* get_func.c -- return the entry point of the given function. */
/* This file is part of DLD, a dynamic link/unlink editor for C.
Copyright (C) 1990 by W. Wilson Ho.
The author can be reached electronically by how@cs.ucdavis.edu or
through physical mail at:
W. Wilson Ho
Division of Computer Science
University of California at Davis
Davis, CA 95616
*/
/* This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 1, or (at your option) any
later version. */
#include "defs.h"
/* given a function name, return the location of that function (in core) */
unsigned long
dld_get_func (name)
char name[];
{
register symbol *sp;
register char *p;
if (name == 0)
return 0;
if (setjmp (_dld_env))
return 0;
/* prepend a '_' to name, as required by C's convention */
p = (char *) _dld_malloc (strlen(name) + 2);
*p = '_';
strcpy (p+1, name);
sp = _dld_getsym_soft (p);
free (p);
#ifdef linux
if (sp) {
while (sp->indirect) sp = sp->indirect;
if ((sp->defined == (N_EXT | N_TEXT)) || (sp->defined == (N_EXT | N_ABS)))
return sp->value;
}
#else
if (sp)
if (sp->defined == (N_EXT | N_TEXT))
return sp->value;
#endif
return 0;
} /* dld_get_func */