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-rw-r--r--include/dlfcn.h73
1 files changed, 31 insertions, 42 deletions
diff --git a/include/dlfcn.h b/include/dlfcn.h
index 998350baa..3fe4d0266 100644
--- a/include/dlfcn.h
+++ b/include/dlfcn.h
@@ -3,19 +3,19 @@
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
#ifndef _DLFCN_H
#define _DLFCN_H 1
@@ -25,72 +25,61 @@
/* Collect various system dependent definitions and declarations. */
#include <bits/dlfcn.h>
+#ifdef __USE_GNU
/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT
the run-time address of the symbol called NAME in the next shared
object is returned. The "next" relation is defined by the order
the shared objects were loaded. */
-#define RTLD_NEXT ((void *) -1l)
+# define RTLD_NEXT ((void *) -1l)
/* If the first argument to `dlsym' or `dlvsym' is set to RTLD_DEFAULT
the run-time address of the symbol called NAME in the global scope
is returned. */
-#define RTLD_DEFAULT ((void *) 0)
+# define RTLD_DEFAULT ((void *) 0)
+#endif
__BEGIN_DECLS
/* Open the shared object FILE and map it in; return a handle that can be
passed to `dlsym' to get symbol values from it. */
-extern void *dlopen __P ((__const char *__file, int __mode));
+extern void *dlopen (__const char *__file, int __mode) __THROW;
/* Unmap and close a shared object opened by `dlopen'.
The handle cannot be used again after calling `dlclose'. */
-extern int dlclose __P ((void *__handle));
+extern int dlclose (void *__handle) __THROW;
/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME. */
-extern void *dlsym __P ((void *__restrict __handle,
- __const char *__restrict __name));
+extern void *dlsym (void *__restrict __handle,
+ __const char *__restrict __name) __THROW;
#ifdef __USE_GNU
/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME with VERSION. */
-extern void *dlvsym __P ((void *__restrict __handle,
- __const char *__restrict __name,
- __const char *__restrict __version));
+extern void *dlvsym (void *__restrict __handle,
+ __const char *__restrict __name,
+ __const char *__restrict __version) __THROW;
#endif
/* When any of the above functions fails, call this function
to return a string describing the error. Each call resets
the error string so that a following call returns null. */
-extern char *dlerror __P ((void));
+extern char *dlerror (void) __THROW;
#ifdef __USE_GNU
+/* Structure containing information about object searched using
+ `dladdr'. */
+typedef struct
+{
+ __const char *dli_fname; /* File name of defining object. */
+ void *dli_fbase; /* Load address of that object. */
+ __const char *dli_sname; /* Name of nearest symbol. */
+ void *dli_saddr; /* Exact value of nearest symbol. */
+} Dl_info;
+
/* Fill in *INFO with the following information about ADDRESS.
Returns 0 iff no shared object's segments contain that address. */
-typedef struct
- {
- __const char *dli_fname; /* File name of defining object. */
- void *dli_fbase; /* Load address of that object. */
- __const char *dli_sname; /* Name of nearest symbol. */
- void *dli_saddr; /* Exact value of nearest symbol. */
- } Dl_info;
-extern int dladdr __P ((const void *__address, Dl_info *__info));
-
-/* To support profiling of shared objects it is a good idea to call
- the function found using `dlsym' using the following macro since
- these calls do not use the PLT. But this would mean the dynamic
- loader has no chance to find out when the function is called. The
- macro applies the necessary magic so that profiling is possible.
- Rewrite
- foo = (*fctp) (arg1, arg2);
- into
- foo = DL_CALL_FCT (fctp, (arg1, arg2));
-*/
-# define DL_CALL_FCT(fctp, args) \
- (_dl_mcount_wrapper_check (fctp), (*(fctp)) args)
-
-/* This function calls the profiling functions. */
-extern void _dl_mcount_wrapper_check __P ((void *__selfpc));
+extern int dladdr (const void *__address, Dl_info *__info) __THROW;
#endif
__END_DECLS