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Diffstat (limited to 'dlfcn/dlopen.c')
-rw-r--r--dlfcn/dlopen.c48
1 files changed, 38 insertions, 10 deletions
diff --git a/dlfcn/dlopen.c b/dlfcn/dlopen.c
index cfd7963545..6381ffc9b1 100644
--- a/dlfcn/dlopen.c
+++ b/dlfcn/dlopen.c
@@ -20,6 +20,17 @@
#include <dlfcn.h>
#include <stddef.h>
+#if !defined SHARED && defined IS_IN_libdl
+
+void *
+dlopen (const char *file, int mode)
+{
+ return __dlopen (file, mode, RETURN_ADDRESS (0));
+}
+static_link_warning (dlopen)
+
+#else
+
struct dlopen_args
{
/* The arguments for dlopen_doit. */
@@ -33,11 +44,11 @@ struct dlopen_args
/* Non-shared code has no support for multiple namespaces. */
-#ifdef SHARED
-# define NS __LM_ID_CALLER
-#else
-# define NS LM_ID_BASE
-#endif
+# ifdef SHARED
+# define NS __LM_ID_CALLER
+# else
+# define NS LM_ID_BASE
+# endif
static void
@@ -50,17 +61,34 @@ dlopen_doit (void *a)
}
-extern void *__dlopen_check (const char *file, int mode);
void *
-__dlopen_check (const char *file, int mode)
+__dlopen (const char *file, int mode DL_CALLER_DECL)
{
+# ifdef SHARED
+ if (__builtin_expect (_dlfcn_hook != NULL, 0))
+ return _dlfcn_hook->dlopen (file, mode, DL_CALLER);
+# endif
+
struct dlopen_args args;
args.file = file;
args.mode = mode;
- args.caller = RETURN_ADDRESS (0);
+ args.caller = DL_CALLER;
+# ifdef SHARED
return _dlerror_run (dlopen_doit, &args) ? NULL : args.new;
+# else
+ if (_dlerror_run (dlopen_doit, &args))
+ return NULL;
+
+ __libc_register_dl_open_hook ((struct link_map *) args.new);
+ __libc_register_dlfcn_hook ((struct link_map *) args.new);
+
+ return args.new;
+# endif
}
-#include <shlib-compat.h>
+# ifdef SHARED
+# include <shlib-compat.h>
+strong_alias (__dlopen, __dlopen_check)
versioned_symbol (libdl, __dlopen_check, dlopen, GLIBC_2_1);
-static_link_warning (dlopen)
+# endif
+#endif