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Diffstat (limited to 'include/dlfcn.h')
| -rw-r--r-- | include/dlfcn.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/dlfcn.h b/include/dlfcn.h new file mode 100644 index 0000000..431065f --- /dev/null +++ b/include/dlfcn.h @@ -0,0 +1,98 @@ +/* $OpenBSD: dlfcn.h,v 1.14 2017/11/28 17:19:47 kettenis Exp $ */ +/* $NetBSD: dlfcn.h,v 1.2 1995/06/05 19:38:00 pk Exp $ */ + +/* + * Copyright (c) 1995 Paul Kranenburg + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Paul Kranenburg. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _DLFCN_H_ +#define _DLFCN_H_ + +#include <sys/cdefs.h> + +/* Values for dlopen `mode'. */ +#define RTLD_LAZY 1 +#define RTLD_NOW 2 +#define RTLD_GLOBAL 0x100 +#define RTLD_LOCAL 0x000 +#define RTLD_TRACE 0x200 + +/* + * Special handle arguments for dlsym(). + */ +#define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */ +#define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */ +#define RTLD_SELF ((void *) -3) /* Search the caller itself. */ + +#if __BSD_VISIBLE + +/* + * Structure filled in by dladdr(). + */ +typedef struct dl_info { + const char *dli_fname; /* Pathname of shared object. */ + void *dli_fbase; /* Base address of shared object. */ + const char *dli_sname; /* Name of nearest symbol. */ + void *dli_saddr; /* Address of nearest symbol. */ +} Dl_info; + +/* + * dlctl() commands + */ +#define DL_GETERRNO 1 +#define DL_SETSRCHPATH x +#define DL_GETLIST x +#define DL_GETREFCNT x +#define DL_GETLOADADDR x +#define DL_SETTHREADLCK 2 +#define DL_SETBINDLCK 3 +#define DL_REFERENCE 4 + +#define DL_LAZY RTLD_LAZY /* Compat */ + +#endif /* __BSD_VISIBLE */ + + +/* + * User interface to the run-time linker. + */ +__BEGIN_DECLS +void *dlopen(const char *, int); +int dlclose(void *); +void *dlsym(void *__restrict, const char *__restrict); +char *dlerror(void); + +#if __BSD_VISIBLE +int dladdr(const void *, Dl_info *); +int dlctl(void *, int, void *); +#endif /* __BSD_VISIBLE */ + +__END_DECLS + +#endif /* _DLFCN_H_ */ |