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(__libc_dlsym_private, __libc_register_dl_open_hook): New functions. (__libc_dlopen_mode): Call __libc_register_dl_open_hook and __libc_register_dlfcn_hook.

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This commit is contained in:
Ulrich Drepper 2004-10-18 23:07:59 +00:00
parent 761bbac5d8
commit 790b6c7a7f
1 changed files with 26 additions and 14 deletions
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40
elf/dl-libc.c
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@ -121,7 +121,6 @@ do_dlsym_private (void *ptr)
vers.hidden = 1;
/* vers.hash = _dl_elf_hash (version); */
vers.hash = 0x0963cf85;
/* FIXME: Shouldn't we use libc.so.6* here? */
vers.filename = NULL;
struct do_dlsym_args *args = (struct do_dlsym_args *) ptr;
@ -156,24 +155,37 @@ __libc_dlopen_mode (const char *name, int mode)
if (dlerror_run (do_dlopen, &args))
return NULL;
struct do_dlsym_args sargs;
sargs.map = args.map;
sargs.name = "_dl_open_hook";
if (! dlerror_run (do_dlsym_private, &sargs))
{
struct dl_open_hook **hook
= (struct dl_open_hook **)
(DL_SYMBOL_ADDRESS (sargs.loadbase, sargs.ref));
if (hook != NULL)
*hook = &_dl_open_hook;
}
__libc_register_dl_open_hook (args.map);
__libc_register_dlfcn_hook (args.map);
return (void *) args.map;
#endif
}
libc_hidden_def (__libc_dlopen_mode)
#ifndef SHARED
void *
__libc_dlsym_private (struct link_map *map, const char *name)
{
struct do_dlsym_args sargs;
sargs.map = map;
sargs.name = name;
if (! dlerror_run (do_dlsym_private, &sargs))
return DL_SYMBOL_ADDRESS (sargs.loadbase, sargs.ref);
return NULL;
}
void
__libc_register_dl_open_hook (struct link_map *map)
{
struct dl_open_hook **hook;
hook = (struct dl_open_hook **) __libc_dlsym_private (map, "_dl_open_hook");
if (hook != NULL)
*hook = &_dl_open_hook;
}
#endif
void *
__libc_dlsym (void *map, const char *name)
{