mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
a808d541c6
2000-02-28 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/start.c: Initialize __errno and add comment explaining why. Remove K&R compatibility. * sysdeps/powerpc/fpu/s_isnan.c: Avoid using asm statement to declare aliases. * sysdeps/powerpc/Makefile: Always pass flags to compile for ppc and not rs6000. [$(subdir)=misc] (sysdep_routines): Add gprsave0, gprrest0, gprsave1 , and gprrest1. Don't pass special flags to compiler for init and gmon-start if this is no ELF platform. * sysdeps/mach/hurd/bits/statfs.h: Define _STATFS_F_NAMELEN. * sysdeps/unix/sysv/linux/bits/statfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/statfs.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/statfs.h: Likewise. * sysdeps/posix/fpathconf.c: Don't unconditionally use f_namelen in statfs. Check feature macro and use f_name_max or NAME_MAX instead. * sysdeps/posix/pathconf.c: Likewise. * dlfcn/dlfcn.h: Remove DL_CALL_FCT definition here. * sysdeps/generic/bits/dlfcn.h: Define DL_CALL_FCT here. * sysdeps/mips/bits/dlfcn.h: Define DL_CALL_FCT here. * iconv/skeleton.c: If DL_CALL_FCT is not yet defined, add dumy definition here. * sysdeps/generic/libc-start.c: Fix typo in comment. * include/set-hooks.h: Allow systems to not define symbol_set_define. * configure.in: Unify machine names rs6000 and powerpc.
85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
/* User functions for run-time dynamic loading.
|
|
Copyright (C) 1995-1999, 2000 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. 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
|
|
/* Fill in *INFO with the following information about ADDRESS.
|
|
Returns 0 iff no shared object's segments contain that address. */
|
|
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;
|
|
extern int dladdr (const void *__address, Dl_info *__info) __THROW;
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* dlfcn.h */
|