mirror of https://gitee.com/openkylin/linux.git
114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
/*!**************************************************************************
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*!
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*! FILE NAME : eshlibld.h
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*!
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*! DESCRIPTION: Prototypes for exported shared library functions
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*!
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*! FUNCTIONS : perform_cris_aout_relocations, shlibmod_fork, shlibmod_exit
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*! (EXPORTED)
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*!
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*!---------------------------------------------------------------------------
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*!
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*! (C) Copyright 1998, 1999 Axis Communications AB, LUND, SWEDEN
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*!
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*!**************************************************************************/
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/* $Id: eshlibld.h,v 1.2 2001/02/23 13:47:33 bjornw Exp $ */
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#ifndef _cris_relocate_h
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#define _cris_relocate_h
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/* Please note that this file is also compiled into the xsim simulator.
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Try to avoid breaking its double use (only works on a little-endian
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32-bit machine such as the i386 anyway).
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Use __KERNEL__ when you're about to use kernel functions,
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(which you should not do here anyway, since this file is
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used by glibc).
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Use defined(__KERNEL__) || defined(__elinux__) when doing
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things that only makes sense on an elinux system.
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Use __CRIS__ when you're about to do (really) CRIS-specific code.
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*/
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/* We have dependencies all over the place for the host system
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for xsim being a linux system, so let's not pretend anything
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else with #ifdef:s here until fixed. */
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#include <linux/limits.h>
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/* Maybe do sanity checking if file input. */
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#undef SANITYCHECK_RELOC
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/* Maybe output debug messages. */
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#undef RELOC_DEBUG
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/* Maybe we want to share core as well as disk space.
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Mainly depends on the config macro CONFIG_SHARE_SHLIB_CORE, but it is
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assumed that we want to share code when debugging (exposes more
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trouble). */
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#ifndef SHARE_LIB_CORE
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# if (defined(__KERNEL__) || !defined(RELOC_DEBUG)) \
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&& !defined(CONFIG_SHARE_SHLIB_CORE)
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# define SHARE_LIB_CORE 0
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# else
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# define SHARE_LIB_CORE 1
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# endif /* __KERNEL__ etc */
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#endif /* SHARE_LIB_CORE */
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/* Main exported function; supposed to be called when the program a.out
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has been read in. */
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extern int
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perform_cris_aout_relocations(unsigned long text, unsigned long tlength,
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unsigned long data, unsigned long dlength,
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unsigned long baddr, unsigned long blength,
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/* These may be zero when there's "perfect"
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position-independent code. */
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unsigned char *trel, unsigned long tsrel,
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unsigned long dsrel,
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/* These will be zero at a first try, to see
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if code is statically linked. Else a
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second try, with the symbol table and
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string table nonzero should be done. */
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unsigned char *symbols, unsigned long symlength,
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unsigned char *strings, unsigned long stringlength,
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/* These will only be used when symbol table
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information is present. */
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char **env, int envc,
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int euid, int is_suid);
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#ifdef RELOC_DEBUG
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/* Task-specific debug stuff. */
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struct task_reloc_debug {
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struct memdebug *alloclast;
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unsigned long alloc_total;
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unsigned long export_total;
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};
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#endif /* RELOC_DEBUG */
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#if SHARE_LIB_CORE
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/* When code (and some very specific data) is shared and not just
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dynamically linked, we need to export hooks for exec beginning and
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end. */
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struct shlibdep;
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extern void
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shlibmod_exit(struct shlibdep **deps);
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/* Returns 0 if failure, nonzero for ok. */
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extern int
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shlibmod_fork(struct shlibdep **deps);
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#else /* ! SHARE_LIB_CORE */
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# define shlibmod_exit(x)
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# define shlibmod_fork(x) 1
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#endif /* ! SHARE_LIB_CORE */
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#endif _cris_relocate_h
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/********************** END OF FILE eshlibld.h *****************************/
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