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1998-12-04 Ulrich Drepper <drepper@cygnus.com> * argp/argp.h: Add __retrict. * dirent/dirent.h: Likewise. * elf/dlfcn.h: Likewise. * grp/grp.h: Likewise. * iconv/iconv.h: Likewise. * inet/aliases.h: Likewise. * libio/libio.h: Likewise. * libio/stdio.h: Likewise. * locale/locale.h: Likewise. * misc/mntent.h: Likewise. * posix/wordexp.h: Likewise. * pwd/pwd.h: Likewise. * resolv/netdb.h: Likewise. * rt/aio.h: Likewise. * stdio-common/printf.h: Likewise. * stdlib/monetary.h: Likewise. * stdlib/stdlib.h: Likewise. * string/argz.h: Likewise. * string/envz.h: Likewise. * string/string.h: Likewise. * time/time.h: Likewise. 1998-12-04 Zack Weinberg <zack@rabi.phys.columbia.edu> * misc/sys/cdefs.h: Only include features.h if _FEATURES_H isn't defined. gcc's redundant include optimizer isn't clever enough to prevent a reinclusion here. Define __restrict to the empty string only if not GCC or GCC version less than 2.92. 1998-12-03 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * sysdeps/unix/sysv/linux/configure.in: Fix last change. 1998-12-03 Mark Kettenis <kettenis@phys.uva.nl> * time/strptime.c (strptime_internal): Make use of `%C' format specifier if it is seen together with the `%y' specifier. 1998-12-04 Ulrich Drepper <drepper@cygnus.com> * po/sk.po: New file. 1998-12-03 Scott Bambrough <scottb@corelcomputer.com> * sysdeps/arm/dl-machine.h (dl_start_user): Incorrect address for _dl_main_searchlist passed to _dl_init_next. 1998-12-02 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * math/libm-test.c: Expand literal tabs in strings. Normalize whitespace. 1998-12-02 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * sysdeps/unix/sysv/linux/sys/fsuid.h: Fix spelling.
101 lines
3.8 KiB
C
101 lines
3.8 KiB
C
/* User functions for run-time dynamic loading.
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Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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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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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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#ifndef _DLFCN_H
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#define _DLFCN_H 1
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#include <features.h>
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#define __need_NULL
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#include <stddef.h>
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/* Collect various system dependand definitions and declarations. */
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#include <bits/dlfcn.h>
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/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT
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the run-time address of the symbol called NAME in the next shared
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object is returned. The "next" relation is defined by the order
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the shared objects were loaded. */
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#define RTLD_NEXT ((void *) -1l)
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/* If the first argument to `dlsym' or `dlvsym' is set to RTLD_DEFAULT
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the run-time address of the symbol called NAME in the global scope
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is returned. */
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#define RTLD_DEFAULT NULL
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__BEGIN_DECLS
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/* Open the shared object FILE and map it in; return a handle that can be
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passed to `dlsym' to get symbol values from it. */
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extern void *dlopen __P ((__const char *__file, int __mode));
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/* Unmap and close a shared object opened by `dlopen'.
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The handle cannot be used again after calling `dlclose'. */
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extern int dlclose __P ((void *__handle));
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/* Find the run-time address in the shared object HANDLE refers to
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of the symbol called NAME. */
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extern void *dlsym __P ((void *__restrict __handle,
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__const char *__restrict __name));
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#ifdef __USE_GNU
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/* Find the run-time address in the shared object HANDLE refers to
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of the symbol called NAME with VERSION. */
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extern void *dlvsym __P ((void *__restrict __handle,
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__const char *__restrict __name,
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__const char *__restrict __version));
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#endif
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/* When any of the above functions fails, call this function
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to return a string describing the error. Each call resets
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the error string so that a following call returns null. */
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extern char *dlerror __P ((void));
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#ifdef __USE_GNU
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/* Fill in *INFO with the following information about ADDRESS.
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Returns 0 iff no shared object's segments contain that address. */
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typedef struct
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{
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__const char *dli_fname; /* File name of defining object. */
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void *dli_fbase; /* Load address of that object. */
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__const char *dli_sname; /* Name of nearest symbol. */
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void *dli_saddr; /* Exact value of nearest symbol. */
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} Dl_info;
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extern int dladdr __P ((const void *__address, Dl_info *__info));
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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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/* This function calls the profiling functions. */
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extern void _dl_mcount_wrapper_check __P ((void *__selfpc));
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#endif
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__END_DECLS
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#endif /* dlfcn.h */
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