libc/sysdeps/linux/common/bits/dlfcn.h

   1 /* System dependent definitions for run-time dynamic loading.
   2    Copyright (C) 1996-2001, 2004 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _DLFCN_H
  20 # error "Never use <bits/dlfcn.h> directly; include <dlfcn.h> instead."
  21 #endif
  22
  23 /* The MODE argument to `dlopen' contains one of the following: */
  24 #define RTLD_LAZY       0x00001 /* Lazy function call binding.  */
  25 #define RTLD_NOW        0x00002 /* Immediate function call binding.  */
  26 #define RTLD_BINDING_MASK   0x3 /* Mask of binding time value.  */
  27 #define RTLD_NOLOAD     0x00004 /* Do not load the object.  */
  28 #if 0 /* uClibc doesnt support these */
  29 #define RTLD_DEEPBIND   0x00008 /* Use deep binding.  */
  30 #endif
  31
  32 /* If the following bit is set in the MODE argument to `dlopen',
  33    the symbols of the loaded object and its dependencies are made
  34    visible as if the object were linked directly into the program.  */
  35 #define RTLD_GLOBAL     0x00100
  36
  37 /* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL.
  38    The implementation does this by default and so we can define the
  39    value to zero.  */
  40 #define RTLD_LOCAL      0
  41
  42 /* Do not delete object when closed.  */
  43 #define RTLD_NODELETE   0x01000