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#ifndef _DLFCN_H
#include <dlfcn/dlfcn.h>
#ifndef _ISOMAC
#include <link.h> /* For ElfW. */
#include <stdbool.h>
/* Internally used flag. */
#define __RTLD_DLOPEN 0x80000000
#define __RTLD_SPROF 0x40000000
#define __RTLD_OPENEXEC 0x20000000
#define __RTLD_CALLMAP 0x10000000
#define __RTLD_AUDIT 0x08000000
#define __RTLD_SECURE 0x04000000 /* Apply additional security checks. */
#define __RTLD_NOIFUNC 0x02000000 /* Suppress calling ifunc functions. */
#define __LM_ID_CALLER -2
#ifdef SHARED
/* Locally stored program arguments. */
extern int __dlfcn_argc attribute_hidden;
extern char **__dlfcn_argv attribute_hidden;
#else
/* These variables are defined and initialized in the startup code. */
extern int __libc_argc attribute_hidden;
extern char **__libc_argv attribute_hidden;
# define __dlfcn_argc __libc_argc
# define __dlfcn_argv __libc_argv
#endif
/* Now define the internal interfaces. */
#define __libc_dlopen(name) \
__libc_dlopen_mode (name, RTLD_LAZY | __RTLD_DLOPEN)
extern void *__libc_dlopen_mode (const char *__name, int __mode);
extern void *__libc_dlsym (void *__map, const char *__name);
extern int __libc_dlclose (void *__map);
libc_hidden_proto (__libc_dlopen_mode)
libc_hidden_proto (__libc_dlsym)
libc_hidden_proto (__libc_dlclose)
/* Locate shared object containing the given address. */
#ifdef ElfW
extern int _dl_addr (const void *address, Dl_info *info,
struct link_map **mapp, const ElfW(Sym) **symbolp);
libc_hidden_proto (_dl_addr)
#endif
struct link_map;
/* Close an object previously opened by _dl_open. */
extern void _dl_close (void *map) attribute_hidden;
/* Same as above, but without locking and safety checks for user
provided map arguments. */
extern void _dl_close_worker (struct link_map *map, bool force)
attribute_hidden;
/* Look up NAME in shared object HANDLE (which may be RTLD_DEFAULT or
RTLD_NEXT). WHO is the calling function, for RTLD_NEXT. Returns
the symbol value, which may be NULL. */
extern void *_dl_sym (void *handle, const char *name, void *who);
/* Look up version VERSION of symbol NAME in shared object HANDLE
(which may be RTLD_DEFAULT or RTLD_NEXT). WHO is the calling
function, for RTLD_NEXT. Returns the symbol value, which may be
NULL. */
extern void *_dl_vsym (void *handle, const char *name, const char *version,
void *who);
/* Helper function for <dlfcn.h> functions. Runs the OPERATE function via
_dl_catch_error. Returns zero for success, nonzero for failure; and
arranges for `dlerror' to return the error details.
ARGS is passed as argument to OPERATE. */
extern int _dlerror_run (void (*operate) (void *), void *args)
attribute_hidden;
#ifdef SHARED
# define DL_CALLER_DECL /* Nothing */
# define DL_CALLER RETURN_ADDRESS (0)
#else
# define DL_CALLER_DECL , void *dl_caller
# define DL_CALLER dl_caller
#endif
struct dlfcn_hook
{
void *(*dlopen) (const char *file, int mode, void *dl_caller);
int (*dlclose) (void *handle);
void *(*dlsym) (void *handle, const char *name, void *dl_caller);
void *(*dlvsym) (void *handle, const char *name, const char *version,
void *dl_caller);
char *(*dlerror) (void);
int (*dladdr) (const void *address, Dl_info *info);
int (*dladdr1) (const void *address, Dl_info *info,
void **extra_info, int flags);
int (*dlinfo) (void *handle, int request, void *arg, void *dl_caller);
void *(*dlmopen) (Lmid_t nsid, const char *file, int mode, void *dl_caller);
void *pad[4];
};
extern struct dlfcn_hook *_dlfcn_hook;
libdl_hidden_proto (_dlfcn_hook)
extern void *__dlopen (const char *file, int mode DL_CALLER_DECL)
attribute_hidden;
extern void *__dlmopen (Lmid_t nsid, const char *file, int mode DL_CALLER_DECL)
attribute_hidden;
extern int __dlclose (void *handle)
attribute_hidden;
extern void *__dlsym (void *handle, const char *name DL_CALLER_DECL)
attribute_hidden;
extern void *__dlvsym (void *handle, const char *name, const char *version
DL_CALLER_DECL)
attribute_hidden;
extern char *__dlerror (void)
attribute_hidden;
extern int __dladdr (const void *address, Dl_info *info)
attribute_hidden;
extern int __dladdr1 (const void *address, Dl_info *info,
void **extra_info, int flags)
attribute_hidden;
extern int __dlinfo (void *handle, int request, void *arg DL_CALLER_DECL)
attribute_hidden;
#ifndef SHARED
struct link_map;
extern void * __libc_dlsym_private (struct link_map *map, const char *name)
attribute_hidden;
extern void __libc_register_dl_open_hook (struct link_map *map)
attribute_hidden;
extern void __libc_register_dlfcn_hook (struct link_map *map)
attribute_hidden;
#endif
#endif
#endif
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