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Diffstat (limited to 'arch/cris/include/asm/eshlibld.h')
| -rw-r--r-- | arch/cris/include/asm/eshlibld.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/arch/cris/include/asm/eshlibld.h b/arch/cris/include/asm/eshlibld.h new file mode 100644 index 000000000000..10ce36cf79a9 --- /dev/null +++ b/arch/cris/include/asm/eshlibld.h @@ -0,0 +1,113 @@ +/*!************************************************************************** +*! +*! 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 *****************************/ + |