/*!**************************************************************************
*!
*! FILE NAME : eshlibld.h
*!
*! DESCRIPTION: Prototypes for exported shared library functions
*!
*! FUNCTIONS : perform_cris_aout_relocations, shlibmod_fork, shlibmod_exit
*! (EXPORTED)
*!
*!---------------------------------------------------------------------------
*!
*! (C) Copyright 1998, 1999 Axis Communications AB, LUND, SWEDEN
*!
*!**************************************************************************/
/* $Id: eshlibld.h,v 1.2 2001/02/23 13:47:33 bjornw Exp $ */

#ifndef _cris_relocate_h
#define _cris_relocate_h

/* Please note that this file is also compiled into the xsim simulator.
Try to avoid breaking its double use (only works on a little-endian
32-bit machine such as the i386 anyway).

Use __KERNEL__ when you're about to use kernel functions,
(which you should not do here anyway, since this file is
used by glibc).
Use defined(__KERNEL__) || defined(__elinux__) when doing
things that only makes sense on an elinux system.
Use __CRIS__ when you're about to do (really) CRIS-specific code.
*/

/* We have dependencies all over the place for the host system
for xsim being a linux system, so let's not pretend anything
else with #ifdef:s here until fixed. */
#include <linux/limits.h>

/* Maybe do sanity checking if file input. */
#undef SANITYCHECK_RELOC

/* Maybe output debug messages. */
#undef RELOC_DEBUG

/* Maybe we want to share core as well as disk space.
Mainly depends on the config macro CONFIG_SHARE_SHLIB_CORE, but it is
assumed that we want to share code when debugging (exposes more
trouble). */
#ifndef SHARE_LIB_CORE
# if (defined(__KERNEL__) || !defined(RELOC_DEBUG)) \
&& !defined(CONFIG_SHARE_SHLIB_CORE)
# define SHARE_LIB_CORE 0
# else
# define SHARE_LIB_CORE 1
# endif /* __KERNEL__ etc */
#endif /* SHARE_LIB_CORE */


/* Main exported function; supposed to be called when the program a.out
has been read in. */
extern int
perform_cris_aout_relocations(unsigned long text, unsigned long tlength,
unsigned long data, unsigned long dlength,
unsigned long baddr, unsigned long blength,

/* These may be zero when there's "perfect"
position-independent code. */
unsigned char *trel, unsigned long tsrel,
unsigned long dsrel,

/* These will be zero at a first try, to see
if code is statically linked. Else a
second try, with the symbol table and
string table nonzero should be done. */
unsigned char *symbols, unsigned long symlength,
unsigned char *strings, unsigned long stringlength,

/* These will only be used when symbol table
information is present. */
char **env, int envc,
int euid, int is_suid);


#ifdef RELOC_DEBUG
/* Task-specific debug stuff. */
struct task_reloc_debug {
struct memdebug *alloclast;
unsigned long alloc_total;
unsigned long export_total;
};
#endif /* RELOC_DEBUG */

#if SHARE_LIB_CORE

/* When code (and some very specific data) is shared and not just
dynamically linked, we need to export hooks for exec beginning and
end. */

struct shlibdep;

extern void
shlibmod_exit(struct shlibdep **deps);

/* Returns 0 if failure, nonzero for ok. */
extern int
shlibmod_fork(struct shlibdep **deps);

#else /* ! SHARE_LIB_CORE */
# define shlibmod_exit(x)
# define shlibmod_fork(x) 1
#endif /* ! SHARE_LIB_CORE */

#endif _cris_relocate_h
/********************** END OF FILE eshlibld.h *****************************/