* sysdeps/unix/sysv/linux/dl-origin.c (_dl_get_origin): Undo all

change related to AT_EXECFN.  We cannot use that string.
	* sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Remove
	_dl_execfn member.
	* elf/dl-support.c: Remove _dl_execfn variable.
	(_dl_aux_init): Remove handling of AT_EXECFN.
	* elf/dl-sysdep.c (_dl_sysdep_start): Remove handling of AT_EXECFN.
	* elf/rtld.c (process_envvars): Remove use of __ASSUME_AT_EXECFN.

ChangeLog

@@ -1,3 +1,14 @@
+2008-08-14  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/unix/sysv/linux/dl-origin.c (_dl_get_origin): Undo all
+	change related to AT_EXECFN.  We cannot use that string.
+	* sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Remove
+	_dl_execfn member.
+	* elf/dl-support.c: Remove _dl_execfn variable.
+	(_dl_aux_init): Remove handling of AT_EXECFN.
+	* elf/dl-sysdep.c (_dl_sysdep_start): Remove handling of AT_EXECFN.
+	* elf/rtld.c (process_envvars): Remove use of __ASSUME_AT_EXECFN.
+
 2008-08-13  Ulrich Drepper  <drepper@redhat.com>
 
 	[BZ #6544]

elf/dl-support.c

@@ -62,12 +62,8 @@ struct link_map *_dl_profile_map;
 /* This is the address of the last stack address ever used.  */
 void *__libc_stack_end;
 
-#ifndef __ASSUME_AT_EXECFN
 /* Path where the binary is found.  */
 const char *_dl_origin_path;
-#endif
-/* File Name of the executable.  */
-const char *_dl_execfn;
 
 /* Nonzero if runtime lookup should not update the .got/.plt.  */
 int _dl_bind_not;
@@ -220,9 +216,6 @@ _dl_aux_init (ElfW(auxv_t) *av)
 	__libc_enable_secure = av->a_un.a_val;
 	__libc_enable_secure_decided = 1;
 	break;
-      case AT_EXECFN:
-	GLRO(dl_execfn) = (void *) av->a_un.a_val;
-	break;
 # ifdef DL_PLATFORM_AUXV
       DL_PLATFORM_AUXV
 # endif

elf/dl-sysdep.c

@@ -173,9 +173,6 @@ _dl_sysdep_start (void **start_argptr,
 	GLRO(dl_sysinfo_dso) = (void *) av->a_un.a_val;
 	break;
 #endif
-      case AT_EXECFN:
-	GLRO(dl_execfn) = (void *) av->a_un.a_val;
-	break;
 #ifdef DL_PLATFORM_AUXV
       DL_PLATFORM_AUXV
 #endif

elf/rtld.c

@@ -2579,12 +2579,10 @@ process_envvars (enum mode *modep)
 	  break;
 
 	case 11:
-#ifndef __ASSUME_AT_EXECFN
 	  /* Path where the binary is found.  */
 	  if (!INTUSE(__libc_enable_secure)
 	      && memcmp (envline, "ORIGIN_PATH", 11) == 0)
 	    GLRO(dl_origin_path) = &envline[12];
-#endif
 	  break;
 
 	case 12:

sysdeps/generic/ldsodefs.h

@@ -593,13 +593,8 @@ struct rtld_global_ro
   /* Names of shared object for which the RPATH should be ignored.  */
   EXTERN const char *_dl_inhibit_rpath;
 
-#ifndef __ASSUME_AT_EXECFN
   /* Location of the binary.  */
   EXTERN const char *_dl_origin_path;
-#endif
-
-  /* If set, points to the file name of the executable.  */
-  EXTERN const char *_dl_execfn;
 
   /* -1 if the dynamic linker should honor library load bias,
      0 if not, -2 use the default (honor biases for normal

sysdeps/unix/sysv/linux/dl-origin.c

@@ -1,5 +1,5 @@
 /* Find path of executable.
-   Copyright (C) 1998-2000, 2002, 2004, 2008 Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -36,28 +36,29 @@ const char *
 _dl_get_origin (void)
 {
   char linkval[PATH_MAX];
-  const char *str;
+  char *result;
-  char *result = (char *) -1l;
   int len;
+  INTERNAL_SYSCALL_DECL (err);
 
-  str = GLRO(dl_execfn);
+  len = INTERNAL_SYSCALL (readlink, err, 3, "/proc/self/exe", linkval,
-  if (str == NULL || str[0] != '/')
+			  sizeof (linkval));
+  if (! INTERNAL_SYSCALL_ERROR_P (len, err) && len > 0 && linkval[0] != '[')
     {
-      INTERNAL_SYSCALL_DECL (err);
+      /* We can use this value.  */
-
+      assert (linkval[0] == '/');
-      len = INTERNAL_SYSCALL (readlink, err, 3, "/proc/self/exe", linkval,
+      while (len > 1 && linkval[len - 1] != '/')
-			      sizeof (linkval));
+	--len;
-      if (! INTERNAL_SYSCALL_ERROR_P (len, err)
+      result = (char *) malloc (len + 1);
-	  && len > 0 && linkval[0] != '[')
+      if (result == NULL)
-	str = linkval;
+	result = (char *) -1;
+      else if (len == 1)
+	memcpy (result, "/", 2);
       else
-	str = NULL;
+	*((char *) __mempcpy (result, linkval, len - 1)) = '\0';
     }
   else
-    len = strlen (str);
-
-  if (str == NULL)
     {
+      result = (char *) -1;
       /* We use the environment variable LD_ORIGIN_PATH.  If it is set make
 	 a copy and strip out trailing slashes.  */
       if (GLRO(dl_origin_path) != NULL)
@@ -75,20 +76,6 @@ _dl_get_origin (void)
 	    }
 	}
     }
-  else
-    {
-      /* We can use this value.  */
-      assert (str[0] == '/');
-      while (len > 1 && str[len - 1] != '/')
-	--len;
-      result = (char *) malloc (len + 1);
-      if (result == NULL)
-	result = (char *) -1;
-      else if (len == 1)
-	memcpy (result, "/", 2);
-      else
-	*((char *) __mempcpy (result, str, len - 1)) = '\0';
-    }
 
   return result;
 }