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				|  |  | +/* System dependent definitions for run-time dynamic loading.
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				|  |  | +   Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
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				|  |  | +   This file is part of the GNU C Library.
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				|  |  | +
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				|  |  | +   The GNU C Library is free software; you can redistribute it and/or
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				|  |  | +   modify it under the terms of the GNU Library General Public License as
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				|  |  | +   published by the Free Software Foundation; either version 2 of the
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				|  |  | +   License, or (at your option) any later version.
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				|  |  | +
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				|  |  | +   The GNU C Library is distributed in the hope that it will be useful,
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				|  |  | +   but WITHOUT ANY WARRANTY; without even the implied warranty of
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				|  |  | +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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				|  |  | +   Library General Public License for more details.
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				|  |  | +
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				|  |  | +   You should have received a copy of the GNU Library General Public
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				|  |  | +   License along with the GNU C Library; see the file COPYING.LIB.  If not,
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				|  |  | +   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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				|  |  | +   Boston, MA 02111-1307, USA.  */
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				|  |  | +
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				|  |  | +#ifndef _DLFCN_H
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				|  |  | +# error "Never use <bits/dlfcn.h> directly; include <dlfcn.h> instead."
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				|  |  | +#endif
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				|  |  | +
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				|  |  | +/* The MODE argument to `dlopen' contains one of the following: */
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				|  |  | +#define RTLD_LAZY	0x00001	/* Lazy function call binding.  */
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				|  |  | +#define RTLD_NOW	0x00002	/* Immediate function call binding.  */
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				|  |  | +#define	RTLD_BINDING_MASK   0x3	/* Mask of binding time value.  */
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				|  |  | +#define RTLD_NOLOAD	0x00004	/* Do not load the object.  */
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				|  |  | +
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				|  |  | +/* If the following bit is set in the MODE argument to `dlopen',
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				|  |  | +   the symbols of the loaded object and its dependencies are made
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				|  |  | +   visible as if the object were linked directly into the program.  */
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				|  |  | +#define RTLD_GLOBAL	0x00100
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				|  |  | +
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				|  |  | +/* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL.
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				|  |  | +   The implementation does this by default and so we can define the
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				|  |  | +   value to zero.  */
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				|  |  | +#define RTLD_LOCAL	0
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				|  |  | +
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				|  |  | +/* Do not delete object when closed.  */
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				|  |  | +#define RTLD_NODELETE	0x01000
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				|  |  | +
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				|  |  | +#ifdef __USE_GNU
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				|  |  | +/* To support profiling of shared objects it is a good idea to call
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				|  |  | +   the function found using `dlsym' using the following macro since
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				|  |  | +   these calls do not use the PLT.  But this would mean the dynamic
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				|  |  | +   loader has no chance to find out when the function is called.  The
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				|  |  | +   macro applies the necessary magic so that profiling is possible.
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				|  |  | +   Rewrite
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				|  |  | +	foo = (*fctp) (arg1, arg2);
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				|  |  | +   into
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				|  |  | +        foo = DL_CALL_FCT (fctp, (arg1, arg2));
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				|  |  | +*/
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				|  |  | +# define DL_CALL_FCT(fctp, args) \
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				|  |  | +  (_dl_mcount_wrapper_check (fctp), (*(fctp)) args)
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				|  |  | +
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				|  |  | +/* This function calls the profiling functions.  */
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				|  |  | +extern void _dl_mcount_wrapper_check (void *__selfpc) __THROW;
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				|  |  | +#endif
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