glibc/dlfcn/dlfcn.h
Ulrich Drepper ca6c73895d Update.
2001-10-26  Ulrich Drepper  <drepper@redhat.com>

	* string/strxfrm.c [USE_IN_EXTENDED_LOCALE_MODEL]: Correctly get
	nrules value.

2001-10-24  H.J. Lu  <hjl@gnu.org>

	* sysdeps/generic/bits/dlfcn.h (DL_CALL_FCT): Cast to void *.
	Use __BEGIN_DECLS/__END_DECLS around prototypes.
	* sysdeps/mips/bits/dlfcn.h (DL_CALL_FCT): Likewise.

2001-10-21  Jim Meyering  <meyering@lucent.com>

	* malloc/obstack.c (_): Honor the setting of ENABLE_NLS.  Otherwise,
	this code would end up calling gettext even in packages built
	with --disable-nls.
	* posix/getopt.c (_): Likewise.
	* posix/regex.c (_): Likewise.

2001-10-26  Ulrich Drepper  <drepper@redhat.com>

	* resolv/gethnamaddr.c (gethostbyaddr): Use ip6.addr for reverse
	lookup not ip6.int.
	* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyaddr_r): Likewise.
	Reported by Martin.v.Loewis@t-online.de [PR libc/2598].

2001-10-19  Jakub Jelinek  <jakub@redhat.com>

	* misc/sys/cdefs.h (__attribute_used__): Define.
	* elf/rtld.c (_dl_start): Add __attribute_used__.
	* elf/dl-runtime.c (fixup, profile_fixup): Likewise.
2001-10-27 00:23:28 +00:00

91 lines
3.2 KiB
C

/* User functions for run-time dynamic loading.
Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _DLFCN_H
#define _DLFCN_H 1
#include <features.h>
/* Collect various system dependent definitions and declarations. */
#include <bits/dlfcn.h>
#ifdef __USE_GNU
/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT
the run-time address of the symbol called NAME in the next shared
object is returned. The "next" relation is defined by the order
the shared objects were loaded. */
# define RTLD_NEXT ((void *) -1l)
/* If the first argument to `dlsym' or `dlvsym' is set to RTLD_DEFAULT
the run-time address of the symbol called NAME in the global scope
is returned. */
# define RTLD_DEFAULT ((void *) 0)
#endif
__BEGIN_DECLS
/* Open the shared object FILE and map it in; return a handle that can be
passed to `dlsym' to get symbol values from it. */
extern void *dlopen (__const char *__file, int __mode) __THROW;
/* Unmap and close a shared object opened by `dlopen'.
The handle cannot be used again after calling `dlclose'. */
extern int dlclose (void *__handle) __THROW;
/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME. */
extern void *dlsym (void *__restrict __handle,
__const char *__restrict __name) __THROW;
#ifdef __USE_GNU
/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME with VERSION. */
extern void *dlvsym (void *__restrict __handle,
__const char *__restrict __name,
__const char *__restrict __version) __THROW;
#endif
/* When any of the above functions fails, call this function
to return a string describing the error. Each call resets
the error string so that a following call returns null. */
extern char *dlerror (void) __THROW;
#ifdef __USE_GNU
/* Structure containing information about object searched using
`dladdr'. */
typedef struct
{
__const char *dli_fname; /* File name of defining object. */
void *dli_fbase; /* Load address of that object. */
__const char *dli_sname; /* Name of nearest symbol. */
void *dli_saddr; /* Exact value of nearest symbol. */
} Dl_info;
/* Fill in *INFO with the following information about ADDRESS.
Returns 0 iff no shared object's segments contain that address. */
extern int dladdr (__const void *__address, Dl_info *__info) __THROW;
#endif
__END_DECLS
#endif /* dlfcn.h */