50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
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/* dlfcn.h -- User functions for run-time dynamic loading.
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Copyright (C) 1995 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
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#ifndef _DLFCN_H
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#define _DLFCN_H 1
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/* Type of the second argument to `dlopen'. */
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typedef enum
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{
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RTLD_LAZY = 1, /* Lazy function call binding. */
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RTLD_NOW = 2 /* Immediate function call binding. */
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} dl_open_mode;
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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 (const char *__file, dl_open_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 (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 (void *__handle, const char *__name);
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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 (void);
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#endif /* dlfcn.h */
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