add libpager-deadlock.patch

1 files changed, 1688 insertions, 0 deletions

diff --git a/debian/patches/libpager-deadlock.patch b/debian/patches/libpager-deadlock.patch
new file mode 100644
index 00000000..b4a1e015
--- /dev/null
+++ b/debian/patches/libpager-deadlock.patch
@@ -0,0 +1,1688 @@
+diff --git a/TODO b/TODO
+index d2500dc..297ac98 100644
+--- a/TODO
++++ b/TODO
+@@ -135,7 +135,7 @@ See `tasks', the exported task list.
+ 
+ ** libtrivfs
+ *** Allow for read/write/exec to be passed down.
+-*** Implement file_exec when appropriate. !!
++*** Implement file_exec_file_name when appropriate. !!
+ *** Provide for the visible owner, etc., to be held in command-line args
+     instead of the underlying node, when it's important. !!
+ 
+diff --git a/configure.ac b/configure.ac
+index b6f777e..a03b666 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -160,8 +160,8 @@ else
+ fi
+ AC_SUBST(VERSIONING)
+ 
+-# Check if libc contains getgrouplist and/or uselocale.
+-AC_CHECK_FUNCS(getgrouplist uselocale)
++# Check if libc contains these functions.
++AC_CHECK_FUNCS(getgrouplist uselocale file_exec_file_name exec_exec_file_name _hurd_exec_file_name)
+ 
+ 
+ # From glibc HEAD, 2007-11-07.
+diff --git a/doc/hurd.texi b/doc/hurd.texi
+index 07ddfb4..32a8194 100644
+--- a/doc/hurd.texi
++++ b/doc/hurd.texi
+@@ -102,7 +102,7 @@ This file documents the GNU Hurd kernel component.  This edition of the
+ documentation was last updated for version @value{VERSION} of the Hurd.
+ 
+ Copyright @copyright{} 1994, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
+-2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
++2004, 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+ 
+ @quotation
+ Permission is granted to make and distribute verbatim copies of
+@@ -2737,10 +2737,10 @@ write the file.
+ @node Program Execution
+ @subsection Program Execution
+ 
+-@findex file_exec
++@findex file_exec_file_name
+ Execution of programs on the Hurd is done through fileservers with the
+-@code{file_exec} RPC.  The fileserver is expected to verify that the
+-user is allowed to execute the file, make whatever modifications to the
++@code{file_exec_file_name} RPC.  The fileserver is expected to verify that
++the user is allowed to execute the file, make whatever modifications to the
+ ports are necessary for setuid execution, and then invoke the standard
+ execserver found on @file{/servers/exec}.
+ 
+@@ -2752,13 +2752,13 @@ The file must be opened for execution; if it is not, @code{EBADF} should
+ be returned.  In addition, at least one of the execute bits must be on.  A
+ failure of this check should result in @code{EACCES}---not
+ @code{ENOEXEC}.  It is not proper for the fileserver ever to respond to
+-the @code{file_exec} RPC with @code{ENOEXEC}.
++the @code{file_exec_file_name} RPC with @code{ENOEXEC}.
+ 
+ If either the setuid or setgid bits are set, the server needs to
+ construct a new authentication handle with the additional new ID's.
+-Then all the ports passed to @code{file_exec} need to be reauthenticated
+-with the new handle.  If the fileserver is unable to make the new
+-authentication handle (for example, because it is not running as root)
++Then all the ports passed to @code{file_exec_file_name} need to be
++reauthenticated with the new handle.  If the fileserver is unable to make the
++new authentication handle (for example, because it is not running as root)
+ it is not acceptable to return an error; in such a case the server
+ should simply silently fail to implement the setuid/setgid semantics.
+ 
+@@ -2766,14 +2766,14 @@ If the setuid/setgid transformation adds a new uid or gid to the user's
+ authentication handle that was not previously present (as opposed to
+ merely reordering them), then the @code{EXEC_SECURE} and
+ @code{EXEC_NEWTASK} flags should both be added in the call to
+-@code{exec_exec}.
++@code{exec_exec_file_name}.
+ 
+ The server then needs to open a new port onto the executed file which
+ will not share any file pointers with the port the user passed in,
+ opened with @code{O_READ}.  Finally, all the information (mutated
+ appropriately for setuid/setgid) should be sent to the execserver with
+-@code{exec_exec}.  Whatever error code @code{exec_exec} returns should
+-returned to the caller of @code{file_exec}.
++@code{exec_exec_file_name}.  Whatever error code @code{exec_exec_file_name}
++returns should be returned to the caller of @code{file_exec_file_name}.
+ 
+ @node File Locking
+ @subsection File Locking
+diff --git a/exec/Makefile b/exec/Makefile
+index 3ef742d..a285c13 100644
+--- a/exec/Makefile
++++ b/exec/Makefile
+@@ -22,7 +22,7 @@ makemode := server
+ 
+ SRCS = exec.c main.c hashexec.c hostarch.c
+ OBJS = main.o hostarch.o exec.o hashexec.o \
+-       execServer.o exec_startupServer.o
++       execServer.o exec_startupServer.o exec_experimentalServer.o
+ 
+ target = exec
+ #targets = exec exec.static
+@@ -30,6 +30,7 @@ HURDLIBS = trivfs fshelp iohelp ports ihash shouldbeinlibc
+ OTHERLIBS = -lpthread
+ 
+ exec-MIGSFLAGS = -imacros $(srcdir)/execmutations.h
++exec_experimental-MIGSFLAGS = -imacros $(srcdir)/execmutations.h
+ 
+ include ../Makeconf
+ 
+diff --git a/exec/exec.c b/exec/exec.c
+index e693f63..09e7df1 100644
+--- a/exec/exec.c
++++ b/exec/exec.c
+@@ -1,6 +1,6 @@
+ /* GNU Hurd standard exec server.
+-   Copyright (C) 1992,93,94,95,96,98,99,2000,01,02,04
+-   	Free Software Foundation, Inc.
++   Copyright (C) 1992 ,1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
++   2002, 2004, 2010 Free Software Foundation, Inc.
+    Written by Roland McGrath.
+ 
+    Can exec ELF format directly.
+@@ -738,6 +738,7 @@ static error_t
+ do_exec (file_t file,
+ 	 task_t oldtask,
+ 	 int flags,
++	 char *filename,
+ 	 char *argv, mach_msg_type_number_t argvlen, boolean_t argv_copy,
+ 	 char *envp, mach_msg_type_number_t envplen, boolean_t envp_copy,
+ 	 mach_port_t *dtable, mach_msg_type_number_t dtablesize,
+@@ -796,7 +797,7 @@ do_exec (file_t file,
+     {
+       /* Check for a #! executable file.  */
+       check_hashbang (&e,
+-		      file, oldtask, flags,
++		      file, oldtask, flags, filename,
+ 		      argv, argvlen, argv_copy,
+ 		      envp, envplen, envp_copy,
+ 		      dtable, dtablesize, dtable_copy,
+@@ -1371,6 +1372,7 @@ do_exec (file_t file,
+   return e.error;
+ }
+ 
++/* Deprecated.  */
+ kern_return_t
+ S_exec_exec (struct trivfs_protid *protid,
+ 	     file_t file,
+@@ -1387,13 +1389,51 @@ S_exec_exec (struct trivfs_protid *protid,
+ 	     mach_port_t *deallocnames, mach_msg_type_number_t ndeallocnames,
+ 	     mach_port_t *destroynames, mach_msg_type_number_t ndestroynames)
+ {
++  return S_exec_exec_file_name (protid,
++				file,
++				oldtask,
++				flags,
++				"",
++				argv, argvlen, argv_copy,
++				envp, envplen, envp_copy,
++				dtable, dtablesize,
++				dtable_copy,
++				portarray, nports,
++				portarray_copy,
++				intarray, nints,
++				intarray_copy,
++				deallocnames, ndeallocnames,
++				destroynames, ndestroynames);
++}
++
++kern_return_t
++S_exec_exec_file_name (struct trivfs_protid *protid,
++		       file_t file,
++		       task_t oldtask,
++		       int flags,
++		       char *filename,
++		       char *argv, mach_msg_type_number_t argvlen,
++		       boolean_t argv_copy,
++		       char *envp, mach_msg_type_number_t envplen,
++		       boolean_t envp_copy,
++		       mach_port_t *dtable, mach_msg_type_number_t dtablesize,
++		       boolean_t dtable_copy,
++		       mach_port_t *portarray, mach_msg_type_number_t nports,
++		       boolean_t portarray_copy,
++		       int *intarray, mach_msg_type_number_t nints,
++		       boolean_t intarray_copy,
++		       mach_port_t *deallocnames,
++		       mach_msg_type_number_t ndeallocnames,
++		       mach_port_t *destroynames,
++		       mach_msg_type_number_t ndestroynames)
++{
+   if (! protid)
+     return EOPNOTSUPP;
+ 
+   /* There were no user-specified exec servers,
+      or none of them could be found.  */
+ 
+-  return do_exec (file, oldtask, flags,
++  return do_exec (file, oldtask, flags, filename,
+ 		  argv, argvlen, argv_copy,
+ 		  envp, envplen, envp_copy,
+ 		  dtable, dtablesize, dtable_copy,
+diff --git a/exec/hashexec.c b/exec/hashexec.c
+index 5641218..91dc9a6 100644
+--- a/exec/hashexec.c
++++ b/exec/hashexec.c
+@@ -1,5 +1,6 @@
+ /* GNU Hurd standard exec server, #! script execution support.
+-   Copyright (C) 1995,96,97,98,99,2000,02 Free Software Foundation, Inc.
++   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2010
++   Free Software Foundation, Inc.
+    Written by Roland McGrath.
+ 
+ This file is part of the GNU Hurd.
+@@ -23,6 +24,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+ #include <unistd.h>
+ #include <envz.h>
+ #include <sys/param.h>
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++#include <hurd/fs_experimental.h>
++#endif
+ 
+ /* This is called to check E for a #! interpreter specification.  E has
+    already been prepared (successfully) and checked (unsuccessfully).  If
+@@ -35,6 +39,7 @@ check_hashbang (struct execdata *e,
+ 		file_t file,
+ 		task_t oldtask,
+ 		int flags,
++		char *file_name_exec,
+ 		char *argv, u_int argvlen, boolean_t argv_copy,
+ 		char *envp, u_int envplen, boolean_t envp_copy,
+ 		mach_port_t *dtable, u_int dtablesize, boolean_t dtable_copy,
+@@ -225,10 +230,13 @@ check_hashbang (struct execdata *e,
+ 	    file_name = NULL;
+ 	  else if (! (flags & EXEC_SECURE))
+ 	    {
+-	      /* Try to figure out the file's name.  We guess that if ARGV[0]
+-		 contains a slash, it might be the name of the file; and that
+-		 if it contains no slash, looking for files named by ARGV[0] in
+-		 the `PATH' environment variable might find it.  */
++	      /* Try to figure out the file's name.  If FILE_NAME_EXEC
++		 is not NULL and not the empty string, then it's the
++		 file's name.  Otherwise we guess that if ARGV[0]
++		 contains a slash, it might be the name of the file;
++		 and that if it contains no slash, looking for files
++		 named by ARGV[0] in the `PATH' environment variable
++		 might find it.  */
+ 
+ 	      error_t error;
+ 	      char *name;
+@@ -264,49 +272,59 @@ check_hashbang (struct execdata *e,
+ 		  return err;
+ 		}
+ 
+-	      error = io_identity (file, &fileid, &filefsid, &fileno);
+-	      if (error)
+-		goto out;
+-	      mach_port_deallocate (mach_task_self (), filefsid);
+-
+-	      if (memchr (argv, '\0', argvlen) == NULL)
+-		{
+-		  name = alloca (argvlen + 1);
+-		  bcopy (argv, name, argvlen);
+-		  name[argvlen] = '\0';
+-		}
++	      if (file_name_exec && file_name_exec[0] != '\0')
++		name = file_name_exec;
+ 	      else
+-		name = argv;
+-
+-	      if (strchr (name, '/') != NULL)
+-		error = lookup (name, 0, &name_file);
+-	      else if ((error = hurd_catch_signal
+-			(sigmask (SIGBUS) | sigmask (SIGSEGV),
+-			 (vm_address_t) envp, (vm_address_t) envp + envplen,
+-			 &search_path, SIG_ERR)))
+-		name_file = MACH_PORT_NULL;
+-
+-	      if (!error && name_file != MACH_PORT_NULL)
+ 		{
+-		  mach_port_t id, fsid;
+-		  ino_t ino;
+-		  error = io_identity (name_file, &id, &fsid, &ino);
+-		  mach_port_deallocate (mach_task_self (), name_file);
+-		  if (!error)
++		  /* Try to locate the file.  */
++		  error = io_identity (file, &fileid, &filefsid, &fileno);
++		  if (error)
++		    goto out;
++		  mach_port_deallocate (mach_task_self (), filefsid);
++
++		  if (memchr (argv, '\0', argvlen) == NULL)
+ 		    {
+-		      mach_port_deallocate (mach_task_self (), fsid);
+-		      mach_port_deallocate (mach_task_self (), id);
++		      name = alloca (argvlen + 1);
++		      bcopy (argv, name, argvlen);
++		      name[argvlen] = '\0';
+ 		    }
+-		  if (!error && id == fileid)
++		  else
++		    name = argv;
++
++		  if (strchr (name, '/') != NULL)
++		    error = lookup (name, 0, &name_file);
++		  else if ((error = hurd_catch_signal
++			    (sigmask (SIGBUS) | sigmask (SIGSEGV),
++			     (vm_address_t) envp, (vm_address_t) envp + envplen,
++			     &search_path, SIG_ERR)))
++		    name_file = MACH_PORT_NULL;
++
++		  /* See whether we found the right file.  */
++		  if (!error && name_file != MACH_PORT_NULL)
+ 		    {
+-		      file_name = name;
+-		      free_file_name = free_name;
++		      mach_port_t id, fsid;
++		      ino_t ino;
++		      error = io_identity (name_file, &id, &fsid, &ino);
++		      mach_port_deallocate (mach_task_self (), name_file);
++		      if (!error)
++			{
++			  mach_port_deallocate (mach_task_self (), fsid);
++			  mach_port_deallocate (mach_task_self (), id);
++			  if (id != fileid)
++			    error = 1;
++			}
+ 		    }
+-		  else if (free_name)
+-		    free (name);
++
++		  mach_port_deallocate (mach_task_self (), fileid);
+ 		}
+ 
+-	      mach_port_deallocate (mach_task_self (), fileid);
++	      if (!error)
++		{
++		  file_name = name;
++		  free_file_name = free_name;
++		}
++	      else if (free_name)
++		free (name);
+ 	    }
+ 
+ 	  if (file_name == NULL)
+@@ -415,16 +433,32 @@ check_hashbang (struct execdata *e,
+     /* We cannot open the interpreter file to execute it.  Lose!  */
+     return;
+ 
++#ifdef HAVE_FILE_EXEC_FILE_NAME
+   /* Execute the interpreter program.  */
+-  e->error = file_exec (interp_file,
+-			oldtask, flags,
+-			new_argv, new_argvlen, envp, envplen,
+-			new_dtable ?: dtable, MACH_MSG_TYPE_COPY_SEND,
+-			new_dtable ? new_dtablesize : dtablesize,
+-			portarray, MACH_MSG_TYPE_COPY_SEND, nports,
+-			intarray, nints,
+-			deallocnames, ndeallocnames,
+-			destroynames, ndestroynames);
++  e->error = file_exec_file_name (interp_file,
++				  oldtask, flags, interp,
++				  new_argv, new_argvlen, envp, envplen,
++				  new_dtable ?: dtable,
++				  MACH_MSG_TYPE_COPY_SEND,
++				  new_dtable ? new_dtablesize : dtablesize,
++				  portarray, MACH_MSG_TYPE_COPY_SEND, nports,
++				  intarray, nints,
++				  deallocnames, ndeallocnames,
++				  destroynames, ndestroynames);
++  /* For backwards compatibility.  Just drop it when we kill file_exec.  */
++  if (e->error == MIG_BAD_ID)
++#endif
++    e->error = file_exec (interp_file,
++			  oldtask, flags,
++			  new_argv, new_argvlen, envp, envplen,
++			  new_dtable ?: dtable, MACH_MSG_TYPE_COPY_SEND,
++			  new_dtable ? new_dtablesize : dtablesize,
++			  portarray, MACH_MSG_TYPE_COPY_SEND, nports,
++			  intarray, nints,
++			  deallocnames, ndeallocnames,
++			  destroynames, ndestroynames);
++
++
+   mach_port_deallocate (mach_task_self (), interp_file);
+   munmap (new_argv, new_argvlen);
+ 
+diff --git a/exec/main.c b/exec/main.c
+index 27f33b1..2987e2d 100644
+--- a/exec/main.c
++++ b/exec/main.c
+@@ -47,6 +47,7 @@ char **save_argv;
+ 
+ 
+ #include "exec_S.h"
++#include "exec_experimental_S.h"
+ #include "exec_startup_S.h"
+ 
+ static int
+@@ -54,6 +55,7 @@ exec_demuxer (mach_msg_header_t *inp, mach_msg_header_t *outp)
+ {
+   mig_routine_t routine;
+   if ((routine = exec_server_routine (inp)) ||
++      (routine = exec_experimental_server_routine (inp)) ||
+       (routine = NULL, trivfs_demuxer (inp, outp)) ||
+       (routine = exec_startup_server_routine (inp)))
+     {
+diff --git a/exec/priv.h b/exec/priv.h
+index 85e03ae..cfd73be 100644
+--- a/exec/priv.h
++++ b/exec/priv.h
+@@ -1,5 +1,6 @@
+ /* GNU Hurd standard exec server, private declarations.
+-   Copyright (C) 1992,93,94,95,96,99,2000,02, 04 Free Software Foundation, Inc.
++   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2004,
++   2010 Free Software Foundation, Inc.
+    Written by Roland McGrath.
+ 
+ This file is part of the GNU Hurd.
+@@ -32,6 +33,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+ #include <link.h>		/* This gives us the ElfW macro.  */
+ #include <fcntl.h>
+ #include "exec_S.h"
++#include "exec_experimental_S.h"
+ 
+ 
+ #ifndef exec_priv_h
+@@ -134,6 +136,7 @@ void check_hashbang (struct execdata *e,
+ 		     file_t file,
+ 		     task_t oldtask,
+ 		     int flags,
++		     char *filename,
+ 		     char *argv, u_int argvlen, boolean_t argv_copy,
+ 		     char *envp, u_int envplen, boolean_t envp_copy,
+ 		     mach_port_t *dtable, u_int dtablesize,
+diff --git a/hurd/exec.defs b/hurd/exec.defs
+index 2888fb1..7433cc2 100644
+--- a/hurd/exec.defs
++++ b/hurd/exec.defs
+@@ -1,5 +1,6 @@
+ /* Interface definitions for the exec servers.
+-   Copyright (C) 1991,92,93,94,95,2001 Free Software Foundation, Inc.
++   Copyright (C) 1991, 1992, 1993, 1994, 1995, 2001, 2010
++   Free Software Foundation, Inc.
+ 
+ This file is part of the GNU Hurd.
+ 
+@@ -29,6 +30,7 @@ EXEC_IMPORTS
+ 
+ INTR_INTERFACE
+ 
++/* Deprecated: use exec_exec_file_name instead.  */
+ routine exec_exec (
+ 	execserver: file_t;
+ 	file: mach_port_send_t;
+diff --git a/hurd/fs.defs b/hurd/fs.defs
+index 2452682..0f0b140 100644
+--- a/hurd/fs.defs
++++ b/hurd/fs.defs
+@@ -1,5 +1,6 @@
+ /* Definitions for the filesystem interface.
+-   Copyright (C) 1994,95,96,97,98,99,2002 Free Software Foundation, Inc.
++   Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2002, 2010
++   Free Software Foundation, Inc.
+ 
+ This file is part of the GNU Hurd.
+ 
+@@ -35,7 +36,8 @@ INTR_INTERFACE
+ /* Overlay a task with a file.  Necessary initialization, including
+    authentication changes associated with set[ug]id execution must be
+    handled by the filesystem.  Filesystems normally implement this by
+-   using exec_newtask or exec_loadtask as appropriate.  */
++   using exec_newtask or exec_loadtask as appropriate.
++   Deprecated: use file_exec_file_name instead.  */
+ routine file_exec (
+ 	exec_file: file_t;
+ 	RPT
+@@ -129,8 +131,8 @@ routine file_lock_stat (
+    (regardless of the current open modes for this port).  ALLOWED is a
+    bitwise OR of O_READ, O_WRITE, and O_EXEC.  This is not necessarily the
+    same as what an open or exec would allow; O_EXEC is set for root even if
+-   no executable bits are on (in which case file_exec should fail) and
+-   O_WRITE is set a directory can be modified, even though it can't be
++   no executable bits are on (in which case file_exec_file_name should fail)
++   and O_WRITE is set a directory can be modified, even though it can't be
+    written directly.  */
+ routine file_check_access (
+ 	file: file_t;
+diff --git a/hurd/hurd_types.h b/hurd/hurd_types.h
+index 7d1bb73..5e470eb 100644
+--- a/hurd/hurd_types.h
++++ b/hurd/hurd_types.h
+@@ -1,5 +1,6 @@
+ /* C declarations for Hurd server interfaces
+-   Copyright (C) 1993,94,95,96,98,99,2001,02 Free Software Foundation, Inc.
++   Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2001, 2002,
++   2010 Free Software Foundation, Inc.
+ 
+ This file is part of the GNU Hurd.
+ 
+@@ -78,7 +79,7 @@ typedef struct timespec timespec_t;
+ /* Many such parameters and flags are also defined in various libc
+    headers. */
+ 
+-/* Bits for flags in fs.defs:file_exec and exec.defs:exec_* calls: */
++/* Bits for flags in fs.defs:file_exec_file_name and exec.defs:exec_* calls: */
+ #define EXEC_NEWTASK	0x00000001 /* Create new task; kill old one.  */
+ #define EXEC_SECURE	0x00000002 /* Use secure values of portarray, etc. */
+ #define EXEC_DEFAULTS	0x00000004 /* Use defaults for unspecified ports.  */
+@@ -344,7 +345,7 @@ typedef int *procinfo_t;
+ #define FSTYPE_MEMFS   0x00000019 /* In-core filesystem */
+ #define FSTYPE_ISO9660 0x0000001a /* ISO9660 */
+ 
+-/* Standard port assignments for file_exec and exec_* */
++/* Standard port assignments for file_exec_file_name and exec_* */
+ enum
+   {
+     INIT_PORT_CWDIR,
+@@ -358,7 +359,7 @@ enum
+     INIT_PORT_MAX
+   };
+ 
+-/* Standard ints for file_exec and exec_* */
++/* Standard ints for file_exec_file_name and exec_* */
+ enum
+   {
+     INIT_UMASK,
+diff --git a/hurd/process.defs b/hurd/process.defs
+index bf90556..8c17666 100644
+--- a/hurd/process.defs
++++ b/hurd/process.defs
+@@ -373,7 +373,11 @@ routine proc_getnports (
+ 
+ /*** Routines related to early server bootstrapping ***/
+ 
+-skip;  /* Reserved for proc_set_init_task */
++/* Set the task of process HURD_PID_INIT. Only the startup process
++   HURD_PID_STARTUP may use this interface.  */
++routine proc_set_init_task (
++       process: process_t;
++       task: task_t);
+ 
+ /* Inform the process server that the process is important.  */
+ routine proc_mark_important (
+diff --git a/hurd/process_request.defs b/hurd/process_request.defs
+index 38e7146..cb8f083 100644
+--- a/hurd/process_request.defs
++++ b/hurd/process_request.defs
+@@ -374,7 +374,10 @@ simpleroutine proc_getnports_request (
+ 
+ /*** Routines related to early server bootstrapping ***/
+ 
+-skip;  /* Reserved for proc_set_init_task */
++simpleroutine proc_set_init_task_request (
++       process: process_t;
++       ureplyport reply: reply_port_t;
++       task: task_t);
+ 
+ /* Inform the process server that the process is important.  */
+ simpleroutine proc_mark_important_request (
+diff --git a/include/pids.h b/include/pids.h
+index 22415f4..dff7635 100644
+--- a/include/pids.h
++++ b/include/pids.h
+@@ -22,8 +22,9 @@
+ #ifndef _HURD_PROCESSES_H
+ #define _HURD_PROCESSES_H
+ 
+-#define HURD_PID_STARTUP	1
+-#define HURD_PID_KERNEL		2
+-#define HURD_PID_PROC		3
++#define HURD_PID_INIT		1
++#define HURD_PID_STARTUP	2
++#define HURD_PID_KERNEL		3
++#define HURD_PID_PROC		4
+ 
+ #endif  /* _HURD_PROCESSES_H */
+diff --git a/init/init.c b/init/init.c
+index b7b40bd..e86be61 100644
+--- a/init/init.c
++++ b/init/init.c
+@@ -1,7 +1,7 @@
+ /* Start and maintain hurd core servers and system run state
+ 
+    Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+-     2005, 2008, 2013 Free Software Foundation, Inc.
++     2005, 2008, 2010, 2013 Free Software Foundation, Inc.
+    This file is part of the GNU Hurd.
+ 
+    The GNU Hurd is free software; you can redistribute it and/or modify
+@@ -24,6 +24,9 @@
+    one file. */
+ #include <hurd.h>
+ #include <hurd/fs.h>
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++#include <hurd/fs_experimental.h>
++#endif
+ #include <hurd/fsys.h>
+ #include <device/device.h>
+ #include <stdio.h>
+@@ -376,13 +379,28 @@ run (const char *server, mach_port_t *ports, task_t *task)
+ 	      printf ("Pausing for %s\n", prog);
+ 	      getchar ();
+ 	    }
+-	  err = file_exec (file, *task, 0,
+-			   (char *)prog, strlen (prog) + 1, /* Args.  */
+-			   startup_envz, startup_envz_len,
+-			   default_dtable, MACH_MSG_TYPE_COPY_SEND, 3,
+-			   ports, MACH_MSG_TYPE_COPY_SEND, INIT_PORT_MAX,
+-			   default_ints, INIT_INT_MAX,
+-			   NULL, 0, NULL, 0);
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++	  err = file_exec_file_name (file, *task, 0, (char *)prog,
++				     (char *)prog,
++				     strlen (prog) + 1, /* Args.  */
++				     startup_envz, startup_envz_len,
++				     default_dtable,
++				     MACH_MSG_TYPE_COPY_SEND, 3,
++				     ports, MACH_MSG_TYPE_COPY_SEND,
++				     INIT_PORT_MAX,
++				     default_ints, INIT_INT_MAX,
++				     NULL, 0, NULL, 0);
++	  /* For backwards compatibility.  Just drop it when we kill
++	     file_exec.  */
++	  if (err == MIG_BAD_ID)
++#endif
++	    err = file_exec (file, *task, 0,
++			     (char *)prog, strlen (prog) + 1, /* Args.  */
++			     startup_envz, startup_envz_len,
++			     default_dtable, MACH_MSG_TYPE_COPY_SEND, 3,
++			     ports, MACH_MSG_TYPE_COPY_SEND, INIT_PORT_MAX,
++			     default_ints, INIT_INT_MAX,
++			     NULL, 0, NULL, 0);
+ 	  if (!err)
+ 	    break;
+ 
+@@ -469,14 +487,27 @@ run_for_real (char *filename, char *args, int arglen, mach_port_t ctty,
+     ++progname;
+   else
+     progname = filename;
+-  err = file_exec (file, task, 0,
+-		   args, arglen,
+-		   startup_envz, startup_envz_len,
+-		   default_dtable, MACH_MSG_TYPE_COPY_SEND, 3,
+-		   default_ports, MACH_MSG_TYPE_COPY_SEND,
+-		   INIT_PORT_MAX,
+-		   default_ints, INIT_INT_MAX,
+-		   NULL, 0, NULL, 0);
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++  err = file_exec_file_name (file, task, 0, filename,
++			     args, arglen,
++			     startup_envz, startup_envz_len,
++			     default_dtable, MACH_MSG_TYPE_COPY_SEND, 3,
++			     default_ports, MACH_MSG_TYPE_COPY_SEND,
++			     INIT_PORT_MAX,
++			     default_ints, INIT_INT_MAX,
++			     NULL, 0, NULL, 0);
++  /* For backwards compatibility.  Just drop it when we kill file_exec.  */
++  if (err == MIG_BAD_ID)
++#endif
++    err = file_exec (file, task, 0,
++		     args, arglen,
++		     startup_envz, startup_envz_len,
++		     default_dtable, MACH_MSG_TYPE_COPY_SEND, 3,
++		     default_ports, MACH_MSG_TYPE_COPY_SEND,
++		     INIT_PORT_MAX,
++		     default_ints, INIT_INT_MAX,
++		     NULL, 0, NULL, 0);
++
+   mach_port_deallocate (mach_task_self (), default_ports[INIT_PORT_PROC]);
+   mach_port_deallocate (mach_task_self (), task);
+   if (ctty != MACH_PORT_NULL)
+@@ -1058,7 +1089,7 @@ start_child (const char *prog, char **progargs)
+ 	       NULL, 0,	/* OSF Mach */
+ #endif
+ 	       0, &child_task);
+-  proc_child (procserver, child_task);
++  proc_set_init_task (procserver, child_task);
+   proc_task2pid (procserver, child_task, &child_pid);
+   proc_task2proc (procserver, child_task, &default_ports[INIT_PORT_PROC]);
+ 
+@@ -1068,13 +1099,26 @@ start_child (const char *prog, char **progargs)
+       getchar ();
+     }
+ 
+-  err = file_exec (file, child_task, 0,
+-		   args, arglen,
+-		   startup_envz, startup_envz_len,
+-		   NULL, MACH_MSG_TYPE_COPY_SEND, 0, /* No fds.  */
+-		   default_ports, MACH_MSG_TYPE_COPY_SEND, INIT_PORT_MAX,
+-		   default_ints, INIT_INT_MAX,
+-		   NULL, 0, NULL, 0);
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++  err = file_exec_file_name (file, child_task, 0, args,
++			     args, arglen,
++			     startup_envz, startup_envz_len,
++			     NULL, MACH_MSG_TYPE_COPY_SEND, 0, /* No fds.  */
++			     default_ports, MACH_MSG_TYPE_COPY_SEND,
++			     INIT_PORT_MAX,
++			     default_ints, INIT_INT_MAX,
++			     NULL, 0, NULL, 0);
++  /* For backwards compatibility.  Just drop it when we kill file_exec.  */
++  if (err == MIG_BAD_ID)
++#endif
++    err = file_exec (file, child_task, 0,
++		     args, arglen,
++		     startup_envz, startup_envz_len,
++		     NULL, MACH_MSG_TYPE_COPY_SEND, 0, /* No fds.  */
++		     default_ports, MACH_MSG_TYPE_COPY_SEND, INIT_PORT_MAX,
++		     default_ints, INIT_INT_MAX,
++		     NULL, 0, NULL, 0);
++
+   proc_mark_important (default_ports[INIT_PORT_PROC]);
+   mach_port_deallocate (mach_task_self (), default_ports[INIT_PORT_PROC]);
+   mach_port_deallocate (mach_task_self (), file);
+diff --git a/libdiskfs/Makefile b/libdiskfs/Makefile
+index aeebe4e..636a83e 100644
+--- a/libdiskfs/Makefile
++++ b/libdiskfs/Makefile
+@@ -56,7 +56,7 @@ OTHERSRCS = conch-fetch.c conch-set.c dir-clear.c dir-init.c dir-renamed.c \
+ SRCS = $(OTHERSRCS) $(FSSRCS) $(IOSRCS) $(FSYSSRCS) $(IFSOCKSRCS)
+ installhdrs = diskfs.h diskfs-pager.h
+ 
+-MIGSTUBS = fsServer.o ioServer.o fsysServer.o exec_startupServer.o \
++MIGSTUBS = fsServer.o fs_experimentalServer.o ioServer.o fsysServer.o exec_startupServer.o \
+ 	fsys_replyUser.o fs_notifyUser.o ifsockServer.o \
+ 	startup_notifyServer.o
+ OBJS = $(sort $(SRCS:.c=.o) $(MIGSTUBS))
+@@ -66,6 +66,7 @@ LDLIBS += -lpthread
+ 
+ fsys-MIGSFLAGS = -imacros $(srcdir)/fsmutations.h -DREPLY_PORTS
+ fs-MIGSFLAGS = -imacros $(srcdir)/fsmutations.h
++fs_experimental-MIGSFLAGS = -imacros $(srcdir)/fsmutations.h
+ io-MIGSFLAGS = -imacros $(srcdir)/fsmutations.h
+ ifsock-MIGSFLAGS = -imacros $(srcdir)/fsmutations.h
+ MIGCOMSFLAGS = -prefix diskfs_
+diff --git a/libdiskfs/boot-start.c b/libdiskfs/boot-start.c
+index 7b8a84f..9dd7ec8 100644
+--- a/libdiskfs/boot-start.c
++++ b/libdiskfs/boot-start.c
+@@ -196,7 +196,7 @@ diskfs_start_bootstrap ()
+       diskfs_exec_ctl = MACH_PORT_NULL;	/* Not used after this.  */
+     }
+ 
+-  /* Cache the exec server port for file_exec to use.  */
++  /* Cache the exec server port for file_exec_file_name to use.  */
+   _hurd_port_set (&_diskfs_exec_portcell, diskfs_exec);
+ 
+   if (_diskfs_boot_command)
+diff --git a/libdiskfs/demuxer.c b/libdiskfs/demuxer.c
+index 4a1c4fb..ff33b1b 100644
+--- a/libdiskfs/demuxer.c
++++ b/libdiskfs/demuxer.c
+@@ -19,6 +19,7 @@
+ 
+ #include "io_S.h"
+ #include "fs_S.h"
++#include "fs_experimental_S.h"
+ #include "../libports/notify_S.h"
+ #include "fsys_S.h"
+ #include "../libports/interrupt_S.h"
+@@ -33,6 +34,7 @@ diskfs_demuxer (mach_msg_header_t *inp,
+   mig_routine_t routine;
+   if ((routine = diskfs_io_server_routine (inp)) ||
+       (routine = diskfs_fs_server_routine (inp)) ||
++      (routine = diskfs_fs_experimental_server_routine (inp)) ||
+       (routine = ports_notify_server_routine (inp)) ||
+       (routine = diskfs_fsys_server_routine (inp)) ||
+       (routine = ports_interrupt_server_routine (inp)) ||
+diff --git a/libdiskfs/file-exec.c b/libdiskfs/file-exec.c
+index 9572dbe..3fe4059 100644
+--- a/libdiskfs/file-exec.c
++++ b/libdiskfs/file-exec.c
+@@ -1,5 +1,6 @@
+-/* File execution (file_exec RPC) for diskfs servers, using exec server.
+-   Copyright (C) 1993,94,95,96,97,98,2000,02 Free Software Foundation, Inc.
++/* File execution (file_exec_file_name RPC) for diskfs servers, using exec server.
++   Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2002,
++   2010 Free Software Foundation, Inc.
+ 
+ This file is part of the GNU Hurd.
+ 
+@@ -21,10 +22,14 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+ 
+ #include "priv.h"
+ #include "fs_S.h"
++#include "fs_experimental_S.h"
+ #include <sys/stat.h>
+ #include <fcntl.h>
+ #include <hurd/exec.h>
+ #include <hurd/paths.h>
++#ifdef HAVE_EXEC_EXEC_FILE_NAME
++#include <hurd/exec_experimental.h>
++#endif
+ #include <string.h>
+ #include <idvec.h>
+ 
+@@ -47,6 +52,39 @@ diskfs_S_file_exec (struct protid *cred,
+ 		    mach_port_t *destroynames,
+ 		    size_t destroynameslen)
+ {
++  return diskfs_S_file_exec_file_name (cred,
++				       task,
++				       flags,
++				       "",
++				       argv, argvlen,
++				       envp, envplen,
++				       fds, fdslen,
++				       portarray, portarraylen,
++				       intarray, intarraylen,
++				       deallocnames, deallocnameslen,
++				       destroynames, destroynameslen);
++}
++
++kern_return_t
++diskfs_S_file_exec_file_name (struct protid *cred,
++			      task_t task,
++			      int flags,
++			      char *filename,
++			      char *argv,
++			      size_t argvlen,
++			      char *envp,
++			      size_t envplen,
++			      mach_port_t *fds,
++			      size_t fdslen,
++			      mach_port_t *portarray,
++			      size_t portarraylen,
++			      int *intarray,
++			      size_t intarraylen,
++			      mach_port_t *deallocnames,
++			      size_t deallocnameslen,
++			      mach_port_t *destroynames,
++			      size_t destroynameslen)
++{
+   struct node *np;
+   uid_t uid;
+   gid_t gid;
+@@ -136,9 +174,9 @@ diskfs_S_file_exec (struct protid *cred,
+ 
+   if (! err)
+     /* Make a new peropen for the exec server to access the file, since any
+-       seeking the exec server might want to do should not affect the
+-       original peropen on which file_exec was called.  (The new protid for
+-       this peropen clones the caller's iouser to preserve the caller's
++       seeking the exec server might want to do should not affect the original
++       peropen on which file_exec_file_name was called.  (The new protid
++       for this peropen clones the caller's iouser to preserve the caller's
+        authentication credentials.)  The new peropen's openmodes must have
+        O_READ even if the caller had only O_EXEC privilege, so the exec
+        server can read the executable file.  We also include O_EXEC so that
+@@ -159,14 +197,31 @@ diskfs_S_file_exec (struct protid *cred,
+       do
+ 	{
+ 	  right = ports_get_send_right (newpi);
+-	  err = exec_exec (execserver,
+-			   right, MACH_MSG_TYPE_COPY_SEND,
+-			   task, flags, argv, argvlen, envp, envplen,
+-			   fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
+-			   portarray, MACH_MSG_TYPE_COPY_SEND, portarraylen,
+-			   intarray, intarraylen,
+-			   deallocnames, deallocnameslen,
+-			   destroynames, destroynameslen);
++#ifdef HAVE_EXEC_EXEC_FILE_NAME
++	  err = exec_exec_file_name (execserver,
++				     right, MACH_MSG_TYPE_COPY_SEND,
++				     task, flags, filename,
++				     argv, argvlen, envp, envplen,
++				     fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
++				     portarray, MACH_MSG_TYPE_COPY_SEND,
++				     portarraylen,
++				     intarray, intarraylen,
++				     deallocnames, deallocnameslen,
++				     destroynames, destroynameslen);
++	  /* For backwards compatibility.  Just drop it when we kill
++	     exec_exec.  */
++	  if (err == MIG_BAD_ID)
++#endif
++	    err = exec_exec (execserver,
++			     right, MACH_MSG_TYPE_COPY_SEND,
++			     task, flags, argv, argvlen, envp, envplen,
++			     fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
++			     portarray, MACH_MSG_TYPE_COPY_SEND, portarraylen,
++			     intarray, intarraylen,
++			     deallocnames, deallocnameslen,
++			     destroynames, destroynameslen);
++
++
+ 	  mach_port_deallocate (mach_task_self (), right);
+ 	  if (err == MACH_SEND_INVALID_DEST)
+ 	    {
+diff --git a/libfshelp/start-translator-long.c b/libfshelp/start-translator-long.c
+index 64a20be..8927c0d 100644
+--- a/libfshelp/start-translator-long.c
++++ b/libfshelp/start-translator-long.c
+@@ -1,5 +1,6 @@
+ /*
+-   Copyright (C) 1995,96,99,2000,02, 04 Free Software Foundation, Inc.
++   Copyright (C) 1995, 1996, 1999, 2000, 2002, 2004, 2010
++   Free Software Foundation, Inc.
+    Written by Miles Bader and Michael I. Bushnell.
+ 
+    This file is part of the GNU Hurd.
+@@ -27,6 +28,9 @@
+ #include <string.h>
+ #include <assert.h>
+ #include "fshelp.h"
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++#include <hurd/fs_experimental.h>
++#endif
+ 
+ 
+ /* The data passed in the various messages we're interested in.  */
+@@ -272,12 +276,22 @@ fshelp_start_translator_long (fshelp_open_fn_t underlying_open_fn,
+   saveport = ports[INIT_PORT_BOOTSTRAP];
+   ports[INIT_PORT_BOOTSTRAP] = bootstrap;
+ 
++#ifdef HAVE_FILE_EXEC_FILE_NAME
+   /* Try and exec the translator in TASK...  */
+-  err = file_exec (executable, task, EXEC_DEFAULTS,
+-		   argz, argz_len, 0, 0,
+-		   fds, fds_type, fds_len,
+-		   ports, ports_type, ports_len,
+-		   ints, ints_len, 0, 0, 0, 0);
++  err = file_exec_file_name (executable, task, EXEC_DEFAULTS, name,
++			     argz, argz_len, 0, 0,
++			     fds, fds_type, fds_len,
++			     ports, ports_type, ports_len,
++			     ints, ints_len, 0, 0, 0, 0);
++  /* For backwards compatibility.  Just drop it when we kill file_exec.  */
++  if (err == MIG_BAD_ID)
++#endif
++    err = file_exec (executable, task, EXEC_DEFAULTS,
++		     argz, argz_len, 0, 0,
++		     fds, fds_type, fds_len,
++		     ports, ports_type, ports_len,
++		     ints, ints_len, 0, 0, 0, 0);
++
+   ports_moved = 1;
+ 
+   if (ports_type == MACH_MSG_TYPE_COPY_SEND)
+diff --git a/libnetfs/Makefile b/libnetfs/Makefile
+index c3830c0..4aade5a 100644
+--- a/libnetfs/Makefile
++++ b/libnetfs/Makefile
+@@ -59,12 +59,13 @@ SRCS= $(OTHERSRCS) $(FSSRCS) $(IOSRCS) $(FSYSSRCS) $(IFSOCKSRCS)
+ 
+ installhdrs=netfs.h
+ 
+-MIGSTUBS= ioServer.o fsServer.o fsysServer.o fsys_replyUser.o ifsockServer.o
++MIGSTUBS= ioServer.o fsServer.o fs_experimentalServer.o fsysServer.o fsys_replyUser.o ifsockServer.o
+ 
+ OBJS=$(sort $(SRCS:.c=.o) $(MIGSTUBS))
+ 
+ fsys-MIGSFLAGS = -imacros $(srcdir)/mutations.h -DREPLY_PORTS
+ fs-MIGSFLAGS = -imacros $(srcdir)/mutations.h
++fs_experimental-MIGSFLAGS = -imacros $(srcdir)/mutations.h
+ io-MIGSFLAGS = -imacros $(srcdir)/mutations.h
+ ifsock-MIGSFLAGS = -imacros $(srcdir)/mutations.h
+ MIGCOMSFLAGS = -prefix netfs_
+diff --git a/libnetfs/demuxer.c b/libnetfs/demuxer.c
+index 4c20ab6..bf78812 100644
+--- a/libnetfs/demuxer.c
++++ b/libnetfs/demuxer.c
+@@ -22,6 +22,7 @@
+ 
+ #include "io_S.h"
+ #include "fs_S.h"
++#include "fs_experimental_S.h"
+ #include "../libports/notify_S.h"
+ #include "fsys_S.h"
+ #include "../libports/interrupt_S.h"
+@@ -34,6 +35,7 @@ netfs_demuxer (mach_msg_header_t *inp,
+   mig_routine_t routine;
+   if ((routine = netfs_io_server_routine (inp)) ||
+       (routine = netfs_fs_server_routine (inp)) ||
++      (routine = netfs_fs_experimental_server_routine (inp)) ||
+       (routine = ports_notify_server_routine (inp)) ||
+       (routine = netfs_fsys_server_routine (inp)) ||
+       (routine = ports_interrupt_server_routine (inp)) ||
+diff --git a/libnetfs/file-exec.c b/libnetfs/file-exec.c
+index 638f0ae..ffaf598 100644
+--- a/libnetfs/file-exec.c
++++ b/libnetfs/file-exec.c
+@@ -1,5 +1,6 @@
+ /*
+-   Copyright (C) 1996,97,2000,01,02 Free Software Foundation, Inc.
++   Copyright (C) 1996, 1997, 2000, 2001, 2002, 2010
++   Free Software Foundation, Inc.
+    Written by Michael I. Bushnell, p/BSG.
+ 
+    This file is part of the GNU Hurd.
+@@ -23,10 +24,14 @@
+ #include "netfs.h"
+ #include "execserver.h"
+ #include "fs_S.h"
++#include "fs_experimental_S.h"
+ #include <sys/stat.h>
+ #include <fcntl.h>
+ #include <hurd/exec.h>
+ #include <hurd/paths.h>
++#ifdef HAVE_EXEC_EXEC_FILE_NAME
++#include <hurd/exec_experimental.h>
++#endif
+ #include <string.h>
+ #include <idvec.h>
+ 
+@@ -49,6 +54,39 @@ netfs_S_file_exec (struct protid *cred,
+ 		   mach_port_t *destroynames,
+ 		   size_t destroynameslen)
+ {
++  return netfs_S_file_exec_file_name (cred,
++				      task,
++				      flags,
++				      "",
++				      argv, argvlen,
++				      envp, envplen,
++				      fds, fdslen,
++				      portarray, portarraylen,
++				      intarray, intarraylen,
++				      deallocnames, deallocnameslen,
++				      destroynames, destroynameslen);
++}
++
++kern_return_t
++netfs_S_file_exec_file_name (struct protid *cred,
++			     task_t task,
++			     int flags,
++			     char *filename,
++			     char *argv,
++			     size_t argvlen,
++			     char *envp,
++			     size_t envplen,
++			     mach_port_t *fds,
++			     size_t fdslen,
++			     mach_port_t *portarray,
++			     size_t portarraylen,
++			     int *intarray,
++			     size_t intarraylen,
++			     mach_port_t *deallocnames,
++			     size_t deallocnameslen,
++			     mach_port_t *destroynames,
++			     size_t destroynameslen)
++{
+   struct node *np;
+   error_t err;
+   uid_t uid;
+@@ -133,14 +171,31 @@ netfs_S_file_exec (struct protid *cred,
+ 	  if (newpi)
+ 	    {
+ 	      right = ports_get_send_right (newpi);
+-	      err = exec_exec (_netfs_exec,
+-			       right, MACH_MSG_TYPE_COPY_SEND,
+-			       task, flags, argv, argvlen, envp, envplen,
+-			       fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
+-			       portarray, MACH_MSG_TYPE_COPY_SEND, portarraylen,
+-			       intarray, intarraylen,
+-			       deallocnames, deallocnameslen,
+-			       destroynames, destroynameslen);
++#ifdef HAVE_EXEC_EXEC_FILE_NAME
++	      err = exec_exec_file_name (_netfs_exec,
++					 right, MACH_MSG_TYPE_COPY_SEND,
++					 task, flags, filename,
++					 argv, argvlen, envp, envplen,
++					 fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
++					 portarray, MACH_MSG_TYPE_COPY_SEND,
++					 portarraylen,
++					 intarray, intarraylen,
++					 deallocnames, deallocnameslen,
++					 destroynames, destroynameslen);
++	      /* For backwards compatibility.  Just drop it when we kill
++		 exec_exec.  */
++	      if (err == MIG_BAD_ID)
++#endif
++		err = exec_exec (_netfs_exec,
++				 right, MACH_MSG_TYPE_COPY_SEND,
++				 task, flags, argv, argvlen, envp, envplen,
++				 fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
++				 portarray, MACH_MSG_TYPE_COPY_SEND,
++				 portarraylen,
++				 intarray, intarraylen,
++				 deallocnames, deallocnameslen,
++				 destroynames, destroynameslen);
++
+ 	      mach_port_deallocate (mach_task_self (), right);
+ 	      ports_port_deref (newpi);
+ 	    }
+diff --git a/libpager/pager-attr.c b/libpager/pager-attr.c
+index 7629f1d..ad1560e 100644
+--- a/libpager/pager-attr.c
++++ b/libpager/pager-attr.c
+@@ -19,9 +19,9 @@
+ #include <assert.h>
+ 
+ /* Change the attributes of the memory object underlying pager P.
+-   Args MAY_CACHE and COPY_STRATEGY are as for 
+-   memory_object_change_atributes.  Wait for the kernel to report completion
+-   off WAIT is set.*/
++   Arguments MAY_CACHE and COPY_STRATEGY are as for
++   memory_object_change_atributes.  Wait for the kernel to report
++   completion if WAIT is set.  */
+ void
+ pager_change_attributes (struct pager *p,
+  			 boolean_t may_cache,
+@@ -77,11 +77,14 @@ pager_change_attributes (struct pager *p,
+ 	}
+     }      
+ 
++  pthread_mutex_unlock (&p->interlock);
+   memory_object_change_attributes (p->memobjcntl, may_cache, copy_strategy,
+ 				   wait ? p->port.port_right : MACH_PORT_NULL);
+   
+   if (wait)
+     {
++      pthread_mutex_lock (&p->interlock);
++
+       while (ar->attrs_pending)
+ 	pthread_cond_wait (&p->wakeup, &p->interlock);
+ 
+@@ -92,7 +95,7 @@ pager_change_attributes (struct pager *p,
+ 	    ar->next->prevp = ar->prevp;
+ 	  free (ar);
+ 	}
++
++      pthread_mutex_unlock (&p->interlock);
+     }
+-  
+-  pthread_mutex_unlock (&p->interlock);
+ }
+diff --git a/libpager/pager.h b/libpager/pager.h
+index 75ff108..d0572af 100644
+--- a/libpager/pager.h
++++ b/libpager/pager.h
+@@ -111,9 +111,9 @@ pager_offer_page (struct pager *pager,
+ 		  vm_address_t buf);  
+ 
+ /* Change the attributes of the memory object underlying pager PAGER.
+-   Args MAY_CACHE and COPY_STRATEGY are as for
+-   memory_object_change_atributes.  Wait for the kernel to report completion
+-   off WAIT is set.*/
++   Arguments MAY_CACHE and COPY_STRATEGY are as for
++   memory_object_change_atributes.  Wait for the kernel to report
++   completion if WAIT is set.  */
+ void
+ pager_change_attributes (struct pager *pager,
+ 			 boolean_t may_cache,
+diff --git a/libtrivfs/Makefile b/libtrivfs/Makefile
+index 921acbe..f68aa7b 100644
+--- a/libtrivfs/Makefile
++++ b/libtrivfs/Makefile
+@@ -44,7 +44,7 @@ OTHERSRCS=demuxer.c protid-clean.c protid-dup.c cntl-create.c \
+ 
+ SRCS=$(FSSRCS) $(IOSRCS) $(FSYSSRCS) $(OTHERSRCS)
+ 
+-MIGSTUBS=fsServer.o ioServer.o fsysServer.o fsys_replyUser.o
++MIGSTUBS=fsServer.o fs_experimentalServer.o ioServer.o fsysServer.o fsys_replyUser.o
+ 
+ libname = libtrivfs
+ HURDLIBS = fshelp iohelp ports shouldbeinlibc
+@@ -54,7 +54,7 @@ MIGCOMSFLAGS = -prefix trivfs_
+ installhdrs := trivfs.h
+ mig-sheader-prefix = trivfs_
+ ifndef no_deps
+-installhdrs += $(patsubst %,trivfs_%_S.h,fs io fsys)
++installhdrs += $(patsubst %,trivfs_%_S.h,fs fs_experimental io fsys)
+ endif
+ 
+ include ../Makeconf
+diff --git a/libtrivfs/demuxer.c b/libtrivfs/demuxer.c
+index 306cd11..221d218 100644
+--- a/libtrivfs/demuxer.c
++++ b/libtrivfs/demuxer.c
+@@ -23,6 +23,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+ 
+ #include "trivfs_io_S.h"
+ #include "trivfs_fs_S.h"
++#include "trivfs_fs_experimental_S.h"
+ #include "../libports/notify_S.h"
+ #include "trivfs_fsys_S.h"
+ #include "../libports/interrupt_S.h"
+@@ -34,6 +35,7 @@ trivfs_demuxer (mach_msg_header_t *inp,
+   mig_routine_t routine;
+   if ((routine = trivfs_io_server_routine (inp)) ||
+       (routine = trivfs_fs_server_routine (inp)) ||
++      (routine = trivfs_fs_experimental_server_routine (inp)) ||
+       (routine = ports_notify_server_routine (inp)) ||
+       (routine = trivfs_fsys_server_routine (inp)) ||
+       (routine = ports_interrupt_server_routine (inp)))
+diff --git a/libtrivfs/file-exec.c b/libtrivfs/file-exec.c
+index a3ab048..f626955 100644
+--- a/libtrivfs/file-exec.c
++++ b/libtrivfs/file-exec.c
+@@ -1,5 +1,5 @@
+ /*
+-   Copyright (C) 1994,2002 Free Software Foundation, Inc.
++   Copyright (C) 1994, 2002, 2010 Free Software Foundation, Inc.
+ 
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+@@ -40,3 +40,28 @@ trivfs_S_file_exec (trivfs_protid_t exec_file,
+ {
+   return EOPNOTSUPP;
+ }
++
++kern_return_t
++trivfs_S_file_exec_file_name (trivfs_protid_t exec_file,
++			      mach_port_t reply,
++			      mach_msg_type_name_t replyPoly,
++			      mach_port_t exec_task,
++			      int flags,
++			      string_t filename,
++			      data_t argv,
++			      mach_msg_type_number_t argvCnt,
++			      data_t envp,
++			      mach_msg_type_number_t envpCnt,
++			      portarray_t fdarray,
++			      mach_msg_type_number_t fdarrayCnt,
++			      portarray_t portarray,
++			      mach_msg_type_number_t portarrayCnt,
++			      intarray_t intarray,
++			      mach_msg_type_number_t intarrayCnt,
++			      mach_port_array_t deallocnames,
++			      mach_msg_type_number_t deallocnamesCnt,
++			      mach_port_array_t destroynames,
++			      mach_msg_type_number_t destroynamesCnt)
++{
++  return EOPNOTSUPP;
++}
+diff --git a/proc/main.c b/proc/main.c
+index 73742ed..f1f4e1b 100644
+--- a/proc/main.c
++++ b/proc/main.c
+@@ -1,5 +1,5 @@
+ /* Initialization of the proc server
+-   Copyright (C) 1993,94,95,96,97,99,2000,01 Free Software Foundation, Inc.
++   Copyright (C) 1993,94,95,96,97,99,2000,01,13 Free Software Foundation, Inc.
+ 
+ This file is part of the GNU Hurd.
+ 
+@@ -88,7 +88,12 @@ main (int argc, char **argv, char **envp)
+   generic_port = ports_get_right (genport);
+ 
+   /* Create the initial proc object for init (PID 1).  */
+-  startup_proc = create_startup_proc ();
++  init_proc = create_init_proc ();
++
++  /* Create the startup proc object for /hurd/init (PID 2).  */
++  startup_proc = allocate_proc (MACH_PORT_NULL);
++  startup_proc->p_deadmsg = 1;
++  complete_proc (startup_proc, HURD_PID_STARTUP);
+ 
+   /* Create our own proc object.  */
+   self_proc = allocate_proc (mach_task_self ());
+diff --git a/proc/mgt.c b/proc/mgt.c
+index 5e0accd..3ab7d8d 100644
+--- a/proc/mgt.c
++++ b/proc/mgt.c
+@@ -1,5 +1,6 @@
+ /* Process management
+-   Copyright (C) 1992,93,94,95,96,99,2000,01,02 Free Software Foundation, Inc.
++   Copyright (C) 1992,93,94,95,96,99,2000,01,02,13
++     Free Software Foundation, Inc.
+ 
+ This file is part of the GNU Hurd.
+ 
+@@ -184,7 +185,7 @@ S_proc_child (struct proc *parentp,
+   /* Process hierarchy.  Remove from our current location
+      and place us under our new parent.  Sanity check to make sure
+      parent is currently init. */
+-  assert (childp->p_parent == startup_proc);
++  assert (childp->p_parent == init_proc);
+   if (childp->p_sib)
+     childp->p_sib->p_prevsib = childp->p_prevsib;
+   *childp->p_prevsib = childp->p_sib;
+@@ -587,7 +588,7 @@ allocate_proc (task_t task)
+ /* Allocate and initialize the proc structure for init (PID 1),
+    the original parent of all other procs.  */
+ struct proc *
+-create_startup_proc (void)
++create_init_proc (void)
+ {
+   static const uid_t zero;
+   struct proc *p;
+@@ -596,7 +597,7 @@ create_startup_proc (void)
+   p = allocate_proc (MACH_PORT_NULL);
+   assert (p);
+ 
+-  p->p_pid = HURD_PID_STARTUP;
++  p->p_pid = HURD_PID_INIT;
+ 
+   p->p_parent = p;
+   p->p_sib = 0;
+@@ -644,7 +645,7 @@ proc_death_notify (struct proc *p)
+ }
+ 
+ /* Complete a new process that has been allocated but not entirely initialized.
+-   This gets called for every process except startup_proc (PID 1).  */
++   This gets called for every process except init_proc (PID 1).  */
+ void
+ complete_proc (struct proc *p, pid_t pid)
+ {
+@@ -663,30 +664,47 @@ complete_proc (struct proc *p, pid_t pid)
+ 
+   p->p_pid = pid;
+ 
+-  ids_ref (&nullids);
+-  p->p_id = &nullids;
++  if (pid == HURD_PID_STARTUP)
++    {
++      /* Equip HURD_PID_STARTUP with the same credentials as
++         HURD_PID_INIT.  */
++      static const uid_t zero;
++      p->p_id = make_ids (&zero, 1);
++      assert (p->p_id);
++    }
++  else
++    {
++      ids_ref (&nullids);
++      p->p_id = &nullids;
++    }
+ 
+   p->p_login = nulllogin;
+   p->p_login->l_refcnt++;
+ 
+   /* Our parent is init for now.  */
+-  p->p_parent = startup_proc;
++  p->p_parent = init_proc;
+ 
+-  p->p_sib = startup_proc->p_ochild;
+-  p->p_prevsib = &startup_proc->p_ochild;
++  p->p_sib = init_proc->p_ochild;
++  p->p_prevsib = &init_proc->p_ochild;
+   if (p->p_sib)
+     p->p_sib->p_prevsib = &p->p_sib;
+-  startup_proc->p_ochild = p;
++  init_proc->p_ochild = p;
+   p->p_loginleader = 0;
+   p->p_ochild = 0;
+   p->p_parentset = 0;
+ 
+   p->p_noowner = 1;
+ 
+-  p->p_pgrp = startup_proc->p_pgrp;
++  p->p_pgrp = init_proc->p_pgrp;
+ 
+-  proc_death_notify (p);
+-  add_proc_to_hash (p);
++  /* At this point, we do not know the task of the startup process,
++     defer registering death notifications and adding it to the hash
++     tables.  */
++  if (pid != HURD_PID_STARTUP)
++    {
++      proc_death_notify (p);
++      add_proc_to_hash (p);
++    }
+   join_pgrp (p);
+ }
+ 
+@@ -748,7 +766,7 @@ process_has_exited (struct proc *p)
+ 	    nowait_msg_proc_newids (tp->p_msgport, tp->p_task,
+ 				    1, tp->p_pgrp->pg_pgid,
+ 				    !tp->p_pgrp->pg_orphcnt);
+-	  tp->p_parent = startup_proc;
++	  tp->p_parent = init_proc;
+ 	  if (tp->p_dead)
+ 	    isdead = 1;
+ 	}
+@@ -756,17 +774,17 @@ process_has_exited (struct proc *p)
+ 	nowait_msg_proc_newids (tp->p_msgport, tp->p_task,
+ 				1, tp->p_pgrp->pg_pgid,
+ 				!tp->p_pgrp->pg_orphcnt);
+-      tp->p_parent = startup_proc;
++      tp->p_parent = init_proc;
+ 
+       /* And now append the lists. */
+-      tp->p_sib = startup_proc->p_ochild;
++      tp->p_sib = init_proc->p_ochild;
+       if (tp->p_sib)
+ 	tp->p_sib->p_prevsib = &tp->p_sib;
+-      startup_proc->p_ochild = p->p_ochild;
+-      p->p_ochild->p_prevsib = &startup_proc->p_ochild;
++      init_proc->p_ochild = p->p_ochild;
++      p->p_ochild->p_prevsib = &init_proc->p_ochild;
+ 
+       if (isdead)
+-	alert_parent (startup_proc);
++	alert_parent (init_proc);
+     }
+ 
+   /* If an operation is in progress for this process, cause it
+@@ -946,3 +964,21 @@ S_proc_get_code (struct proc *callerp,
+ 
+   return 0;
+ }
++
++/* Implement proc_set_init_task as described in <hurd/process.defs>.  */
++error_t
++S_proc_set_init_task(struct proc *callerp,
++		     task_t task)
++{
++  if (! callerp)
++    return EOPNOTSUPP;
++
++  if (callerp != startup_proc)
++    return EPERM;
++
++  init_proc->p_task = task;
++  proc_death_notify (init_proc);
++  add_proc_to_hash (init_proc);
++
++  return 0;
++}
+diff --git a/proc/proc.h b/proc/proc.h
+index 12f56da..8c8de08 100644
+--- a/proc/proc.h
++++ b/proc/proc.h
+@@ -1,5 +1,6 @@
+ /* Process server definitions
+-   Copyright (C) 1992,93,94,95,96,99,2000,01 Free Software Foundation, Inc.
++   Copyright (C) 1992,93,94,95,96,99,2000,01,13
++     Free Software Foundation, Inc.
+ 
+ This file is part of the GNU Hurd.
+ 
+@@ -134,7 +135,8 @@ struct exc
+ 
+ mach_port_t authserver;
+ struct proc *self_proc;		/* process HURD_PID_PROC (us) */
+-struct proc *startup_proc;	/* process 1 (init) */
++struct proc *init_proc;		/* process 1 (sysvinit) */
++struct proc *startup_proc;	/* process 2 (hurd/init) */
+ 
+ struct port_bucket *proc_bucket;
+ struct port_class *proc_class;
+@@ -190,7 +192,7 @@ void exc_clean (void *);
+ struct proc *add_tasks (task_t);
+ int pidfree (pid_t);
+ 
+-struct proc *create_startup_proc (void);
++struct proc *create_init_proc (void);
+ struct proc *allocate_proc (task_t);
+ void proc_death_notify (struct proc *);
+ void complete_proc (struct proc *, pid_t);
+diff --git a/trans/fakeroot.c b/trans/fakeroot.c
+index c519180..07d9462 100644
+--- a/trans/fakeroot.c
++++ b/trans/fakeroot.c
+@@ -1,5 +1,5 @@
+ /* fakeroot -- a translator for faking actions that aren't really permitted
+-   Copyright (C) 2002, 2003, 2008, 2013 Free Software Foundation, Inc.
++   Copyright (C) 2002, 2003, 2008, 2010, 2013 Free Software Foundation, Inc.
+ 
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+@@ -28,6 +28,9 @@
+ #include <pthread.h>
+ #include <hurd/ihash.h>
+ #include <hurd/paths.h>
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++#include <hurd/fs_experimental.h>
++#endif
+ 
+ #include <version.h>
+ 
+@@ -784,6 +787,39 @@ netfs_S_file_exec (struct protid *user,
+                    mach_port_t *destroynames,
+                    size_t destroynameslen)
+ {
++  return netfs_S_file_exec_file_name (user,
++				      task,
++				      flags,
++				      "",
++				      argv, argvlen,
++				      envp, envplen,
++				      fds, fdslen,
++				      portarray, portarraylen,
++				      intarray, intarraylen,
++				      deallocnames, deallocnameslen,
++				      destroynames, destroynameslen);
++}
++
++kern_return_t
++netfs_S_file_exec_file_name (struct protid *user,
++			     task_t task,
++			     int flags,
++			     char *filename,
++			     char *argv,
++			     size_t argvlen,
++			     char *envp,
++			     size_t envplen,
++			     mach_port_t *fds,
++			     size_t fdslen,
++			     mach_port_t *portarray,
++			     size_t portarraylen,
++			     int *intarray,
++			     size_t intarraylen,
++			     mach_port_t *deallocnames,
++			     size_t deallocnameslen,
++			     mach_port_t *destroynames,
++			     size_t destroynameslen)
++{
+   error_t err;
+   file_t file;
+ 
+@@ -800,13 +836,29 @@ netfs_S_file_exec (struct protid *user,
+ 
+   if (!err)
+     {
++#ifdef HAVE_FILE_EXEC_FILE_NAME
+       /* We cannot use MACH_MSG_TYPE_MOVE_SEND because we might need to
+ 	 retry an interrupted call that would have consumed the rights.  */
+-      err = file_exec (user->po->np->nn->file, task, flags, argv, argvlen,
+-		       envp, envplen, fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
+-		       portarray, MACH_MSG_TYPE_COPY_SEND, portarraylen,
+-		       intarray, intarraylen, deallocnames, deallocnameslen,
+-		       destroynames, destroynameslen);
++      err = file_exec_file_name (user->po->np->nn->file, task, flags,
++				 filename,
++				 argv, argvlen,
++				 envp, envplen,
++				 fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
++				 portarray, MACH_MSG_TYPE_COPY_SEND,
++				 portarraylen,
++				 intarray, intarraylen,
++				 deallocnames, deallocnameslen,
++				 destroynames, destroynameslen);
++      /* For backwards compatibility.  Just drop it when we kill
++	 file_exec.  */
++      if (err == MIG_BAD_ID)
++#endif
++	err = file_exec (user->po->np->nn->file, task, flags, argv, argvlen,
++			 envp, envplen, fds, MACH_MSG_TYPE_COPY_SEND, fdslen,
++			 portarray, MACH_MSG_TYPE_COPY_SEND, portarraylen,
++			 intarray, intarraylen, deallocnames, deallocnameslen,
++			 destroynames, destroynameslen);
++
+       mach_port_deallocate (mach_task_self (), file);
+     }
+ 
+@@ -936,6 +988,7 @@ netfs_demuxer (mach_msg_header_t *inp,
+ {
+   mig_routine_t netfs_io_server_routine (mach_msg_header_t *);
+   mig_routine_t netfs_fs_server_routine (mach_msg_header_t *);
++  mig_routine_t netfs_fs_experimental_server_routine (mach_msg_header_t *);
+   mig_routine_t ports_notify_server_routine (mach_msg_header_t *);
+   mig_routine_t netfs_fsys_server_routine (mach_msg_header_t *);
+   mig_routine_t ports_interrupt_server_routine (mach_msg_header_t *);
+@@ -943,6 +996,7 @@ netfs_demuxer (mach_msg_header_t *inp,
+   mig_routine_t routine;
+   if ((routine = netfs_io_server_routine (inp)) ||
+       (routine = netfs_fs_server_routine (inp)) ||
++      (routine = netfs_fs_experimental_server_routine (inp)) ||
+       (routine = ports_notify_server_routine (inp)) ||
+       (routine = netfs_fsys_server_routine (inp)) ||
+       /* XXX we should intercept interrupt_operation and do
+diff --git a/utils/fakeauth.c b/utils/fakeauth.c
+index 590a421..851772c 100644
+--- a/utils/fakeauth.c
++++ b/utils/fakeauth.c
+@@ -1,5 +1,5 @@
+ /* fakeauth -- proxy auth server to lie to users about what their IDs are
+-   Copyright (C) 2002 Free Software Foundation, Inc.
++   Copyright (C) 2002, 2010 Free Software Foundation, Inc.
+ 
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+@@ -397,7 +397,7 @@ believe it has restricted them to different identities or no identity at all.\
+   /* We cannot use fork because it doesn't do the right thing with our send
+      rights that point to our own receive rights, i.e. the new auth port.
+      Since posix_spawn might be implemented with fork (prior to glibc 2.3),
+-     we cannot use that simple interface either.  We use _hurd_exec
++     we cannot use that simple interface either.  We use _hurd_exec_file_name
+      directly to effect what posix_spawn does in the simple case.  */
+   {
+     task_t newtask;
+@@ -422,7 +422,12 @@ believe it has restricted them to different identities or no identity at all.\
+     if (err)
+       error (3, err, "proc_child");
+ 
++#ifdef HAVE__HURD_EXEC_FILE_NAME
++    err = _hurd_exec_file_name (newtask, execfile, argv[argi],
++				&argv[argi], environ);
++#else
+     err = _hurd_exec (newtask, execfile, &argv[argi], environ);
++#endif
+     mach_port_deallocate (mach_task_self (), newtask);
+     mach_port_deallocate (mach_task_self (), execfile);
+     if (err)
+diff --git a/utils/login.c b/utils/login.c
+index cad3b1e..808a244 100644
+--- a/utils/login.c
++++ b/utils/login.c
+@@ -1,6 +1,7 @@
+ /* Hurdish login
+ 
+-   Copyright (C) 1995,96,97,98,99,2002 Free Software Foundation, Inc.
++   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2002, 2010
++   Free Software Foundation, Inc.
+ 
+    Written by Miles Bader <miles@gnu.org>
+ 
+@@ -46,6 +47,9 @@
+ #include <error.h>
+ #include <timefmt.h>
+ #include <hurd/lookup.h>
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++#include <hurd/fs_experimental.h>
++#endif
+ #include <ugids.h>
+ 
+ const char *argp_program_version = STANDARD_HURD_VERSION (login);
+@@ -882,12 +886,22 @@ main(int argc, char *argv[])
+ 	}
+     }
+ 
+-  err = file_exec (exec, mach_task_self (), EXEC_DEFAULTS,
+-		   sh_args, sh_args_len, env, env_len,
+-		   fds, MACH_MSG_TYPE_COPY_SEND, 3,
+-		   ports, MACH_MSG_TYPE_COPY_SEND, INIT_PORT_MAX,
+-		   ints, INIT_INT_MAX,
+-		   0, 0, 0, 0);
++#ifdef HAVE_FILE_EXEC_FILE_NAME
++  err = file_exec_file_name (exec, mach_task_self (), EXEC_DEFAULTS, shell,
++			     sh_args, sh_args_len, env, env_len,
++			     fds, MACH_MSG_TYPE_COPY_SEND, 3,
++			     ports, MACH_MSG_TYPE_COPY_SEND, INIT_PORT_MAX,
++			     ints, INIT_INT_MAX,
++			     0, 0, 0, 0);
++  /* Fallback in case the file server hasn't been restarted.  */
++  if (err == MIG_BAD_ID)
++#endif
++    err = file_exec (exec, mach_task_self (), EXEC_DEFAULTS,
++		     sh_args, sh_args_len, env, env_len,
++		     fds, MACH_MSG_TYPE_COPY_SEND, 3,
++		     ports, MACH_MSG_TYPE_COPY_SEND, INIT_PORT_MAX,
++		     ints, INIT_INT_MAX,
++		     0, 0, 0, 0);
+   if (err)
+     error(5, err, "%s", shell);
+ 
+diff --git a/utils/rpctrace.c b/utils/rpctrace.c
+index d7ee203..e9b634a 100644
+--- a/utils/rpctrace.c
++++ b/utils/rpctrace.c
+@@ -1734,7 +1734,11 @@ traced_spawn (char **argv, char **envp)
+   /* Now actually run the command they told us to trace.  We do the exec on
+      the actual task, so the RPCs to map in the program itself do not get
+      traced.  Could have an option to use TASK_WRAPPER here instead.  */
++#ifdef HAVE__HURD_EXEC_FILE_NAME
++  err = _hurd_exec_file_name (traced_task, file, *argv, argv, envp);
++#else
+   err = _hurd_exec (traced_task, file, argv, envp);
++#endif
+   if (err)
+     error (2, err, "cannot exec `%s'", argv[0]);
+ 
+diff --git a/utils/shd.c b/utils/shd.c
+index a1a4b26..855284f 100644
+--- a/utils/shd.c
++++ b/utils/shd.c
+@@ -1,5 +1,5 @@
+ /*
+-   Copyright (C) 1994,95,99,2002 Free Software Foundation
++   Copyright (C) 1994, 1995, 1999, 2002, 2010 Free Software Foundation
+ 
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+@@ -159,15 +159,18 @@ run (char **argv, int fd0, int fd1)
+ 	      movefd (fd1, 1, &save1))
+ 	    return -1;
+ 
++#ifdef HAVE__HURD_EXEC_FILE_NAME
++	  err = _hurd_exec_file_name (task, file, program, argv, environ);
++#else
+ 	  err = _hurd_exec (task, file, argv, environ);
+-
++#endif
+ 	  if (restorefd (fd0, 0, &save0) ||
+ 	      restorefd (fd1, 1, &save1))
+ 	    return -1;
+ 
+ 	  if (err)
+ 	    {
+-	      error (0, err, "_hurd_exec");
++	      error (0, err, "_hurd_exec_file_name");
+ 	      err = task_terminate (task);
+ 	      if (err)
+ 		error (0, err, "task_terminate");