Merge changes between r16068 and r16332 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@16333 7b3dc134-2b1b-0410-93df-9e9f96275f8d

135 files changed, 7745 insertions, 332 deletions

diff --git a/ports/sysdeps/unix/sysv/linux/arm/sys/ucontext.h b/ports/sysdeps/unix/sysv/linux/arm/sys/ucontext.h
index 9ecff7b59..58f438cf4 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/sys/ucontext.h
+++ b/ports/sysdeps/unix/sysv/linux/arm/sys/ucontext.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 1999, 2001, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2001, 2006, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -23,7 +23,6 @@
 
 #include <features.h>
 #include <signal.h>
-#include <sys/procfs.h>
 
 /* We need the signal context definitions even if they are not used
    included in <signal.h>.  */
@@ -35,47 +34,64 @@ typedef int greg_t;
 #define NGREG	18
 
 /* Container for all general registers.  */
-typedef elf_gregset_t gregset_t;
+typedef greg_t gregset_t[NGREG];
 
 /* Number of each register is the `gregset_t' array.  */
 enum
 {
-  R0 = 0,
-#define R0	R0
-  R1 = 1,
-#define R1	R1
-  R2 = 2,
-#define R2	R2
-  R3 = 3,
-#define R3	R3
-  R4 = 4,
-#define R4	R4
-  R5 = 5,
-#define R5	R5
-  R6 = 6,
-#define R6	R6
-  R7 = 7,
-#define R7	R7
-  R8 = 8,
-#define R8	R8
-  R9 = 9,
-#define R9	R9
-  R10 = 10,
-#define R10	R10
-  R11 = 11,
-#define R11	R11
-  R12 = 12,
-#define R12	R12
-  R13 = 13,
-#define R13	R13
-  R14 = 14,
-#define R14	R14
-  R15 = 15
-#define R15	R15
+  REG_R0 = 0,
+#define REG_R0	REG_R0
+  REG_R1 = 1,
+#define REG_R1	REG_R1
+  REG_R2 = 2,
+#define REG_R2	REG_R2
+  REG_R3 = 3,
+#define REG_R3	REG_R3
+  REG_R4 = 4,
+#define REG_R4	REG_R4
+  REG_R5 = 5,
+#define REG_R5	REG_R5
+  REG_R6 = 6,
+#define REG_R6	REG_R6
+  REG_R7 = 7,
+#define REG_R7	REG_R7
+  REG_R8 = 8,
+#define REG_R8	REG_R8
+  REG_R9 = 9,
+#define REG_R9	REG_R9
+  REG_R10 = 10,
+#define REG_R10	REG_R10
+  REG_R11 = 11,
+#define REG_R11	REG_R11
+  REG_R12 = 12,
+#define REG_R12	REG_R12
+  REG_R13 = 13,
+#define REG_R13	REG_R13
+  REG_R14 = 14,
+#define REG_R14	REG_R14
+  REG_R15 = 15
+#define REG_R15	REG_R15
 };
 
+struct _libc_fpstate
+{
+  struct
+  {
+    unsigned int sign1:1;
+    unsigned int unused:15;
+    unsigned int sign2:1;
+    unsigned int exponent:14;
+    unsigned int j:1;
+    unsigned int mantissa1:31;
+    unsigned int mantissa0:32;
+  } fpregs[8];
+  unsigned int fpsr:32;
+  unsigned int fpcr:32;
+  unsigned char ftype[8];
+  unsigned int init_flag;
+};
 /* Structure to describe FPU registers.  */
-typedef elf_fpregset_t	fpregset_t;
+typedef struct _libc_fpstate fpregset_t;
 
 /* Context to describe whole processor state.  This only describes
    the core registers; coprocessor registers get saved elsewhere
diff --git a/ports/sysdeps/unix/sysv/linux/generic/Makefile b/ports/sysdeps/unix/sysv/linux/generic/Makefile
new file mode 100644
index 000000000..c1daee239
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),misc)
+sysdep_routines += epoll_create epoll_wait inotify_init
+endif
diff --git a/ports/sysdeps/unix/sysv/linux/generic/____longjmp_chk.c b/ports/sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
new file mode 100644
index 000000000..62b7905ae
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <jmpbuf-offsets.h>
+#include <sysdep.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stackinfo.h>
+
+#ifdef _STACK_GROWS_DOWN
+#define called_from(this, saved) ((this) < (saved))
+#else
+#define called_from(this, saved) ((this) > (saved))
+#endif
+
+extern void ____longjmp_chk (__jmp_buf __env, int __val)
+  __attribute__ ((__noreturn__));
+
+void ____longjmp_chk (__jmp_buf env, int val)
+{
+  void *this_frame = __builtin_frame_address (0);
+  void *saved_frame = JB_FRAME_ADDRESS (env);
+  INTERNAL_SYSCALL_DECL (err);
+  stack_t ss;
+
+  /* If "env" is from a frame that called us, we're all set.  */
+  if (called_from(this_frame, saved_frame))
+    __longjmp (env, val);
+
+  /* If we can't get the current stack state, give up and do the longjmp. */
+  if (INTERNAL_SYSCALL (sigaltstack, err, 2, NULL, &ss) != 0)
+    __longjmp (env, val);
+
+  /* If we we are executing on the alternate stack and within the
+     bounds, do the longjmp.  */
+  if (ss.ss_flags == SS_ONSTACK &&
+      (this_frame >= ss.ss_sp && this_frame < (ss.ss_sp + ss.ss_size)))
+    __longjmp (env, val);
+
+  __fortify_fail ("longjmp causes uninitialized stack frame");
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/access.c b/ports/sysdeps/unix/sysv/linux/generic/access.c
new file mode 100644
index 000000000..96b1cd095
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/access.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sysdep-cancel.h>
+
+/* Test for access to FILE.  */
+int
+__access (const char *file, int type)
+{
+  return INLINE_SYSCALL (faccessat, 3, AT_FDCWD, file, type);
+}
+weak_alias (__access, access)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/bits/fcntl.h b/ports/sysdeps/unix/sysv/linux/generic/bits/fcntl.h
new file mode 100644
index 000000000..cbea2a435
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/bits/fcntl.h
@@ -0,0 +1,340 @@
+/* O_*, F_*, FD_* bit values for the generic Linux ABI.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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	_FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+#include <sys/types.h>
+#include <bits/wordsize.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+   located on a few file systems.  */
+#define O_ACCMODE	   0003
+#define O_RDONLY	     00
+#define O_WRONLY	     01
+#define O_RDWR		     02
+#define O_CREAT		   0100	/* not fcntl */
+#define O_EXCL		   0200	/* not fcntl */
+#define O_NOCTTY	   0400	/* not fcntl */
+#define O_TRUNC		  01000	/* not fcntl */
+#define O_APPEND	  02000
+#define O_NONBLOCK	  04000
+#define O_NDELAY	O_NONBLOCK
+#define O_SYNC	       04010000
+#define O_FSYNC		 O_SYNC
+#define O_ASYNC		 020000
+
+#ifdef __USE_XOPEN2K8
+# define O_DIRECTORY	0200000	/* Must be a directory.	 */
+# define O_NOFOLLOW	0400000	/* Do not follow links.	 */
+# define O_CLOEXEC     02000000 /* Set close_on_exec.  */
+#endif
+#ifdef __USE_GNU
+# define O_DIRECT	 040000	/* Direct disk access.	*/
+# define O_NOATIME     01000000 /* Do not set atime.  */
+# define O_PATH	      010000000 /* Resolve pathname but do not open file.  */
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+   We define the symbols here but let them do the same as O_SYNC since
+   this is a superset.	*/
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC	010000	/* Synchronize data.  */
+# define O_RSYNC	O_SYNC	/* Synchronize read operations.	 */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# if __WORDSIZE == 64
+#  define O_LARGEFILE	0
+# else
+#  define O_LARGEFILE	0100000
+# endif
+#endif
+
+/* Values for the second argument to `fcntl'.  */
+#define F_DUPFD		0	/* Duplicate file descriptor.  */
+#define F_GETFD		1	/* Get file descriptor flags.  */
+#define F_SETFD		2	/* Set file descriptor flags.  */
+#define F_GETFL		3	/* Get file status flags.  */
+#define F_SETFL		4	/* Set file status flags.  */
+#if __WORDSIZE == 64
+# define F_GETLK	5	/* Get record locking info.  */
+# define F_SETLK	6	/* Set record locking info (non-blocking).  */
+# define F_SETLKW	7	/* Set record locking info (blocking).	*/
+/* Not necessary, we always have 64-bit offsets.  */
+# define F_GETLK64	5	/* Get record locking info.  */
+# define F_SETLK64	6	/* Set record locking info (non-blocking).  */
+# define F_SETLKW64	7	/* Set record locking info (blocking).	*/
+#else
+# ifndef __USE_FILE_OFFSET64
+#  define F_GETLK	5	/* Get record locking info.  */
+#  define F_SETLK	6	/* Set record locking info (non-blocking).  */
+#  define F_SETLKW	7	/* Set record locking info (blocking).	*/
+# else
+#  define F_GETLK	F_GETLK64  /* Get record locking info.	*/
+#  define F_SETLK	F_SETLK64  /* Set record locking info (non-blocking).*/
+#  define F_SETLKW	F_SETLKW64 /* Set record locking info (blocking).  */
+# endif
+# define F_GETLK64	12	/* Get record locking info.  */
+# define F_SETLK64	13	/* Set record locking info (non-blocking).  */
+# define F_SETLKW64	14	/* Set record locking info (blocking).	*/
+#endif
+
+#if defined __USE_BSD || defined __USE_UNIX98 || defined __USE_XOPEN2K8
+# define F_SETOWN	8	/* Get owner (process receiving SIGIO).  */
+# define F_GETOWN	9	/* Set owner (process receiving SIGIO).  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG	10	/* Set number of signal to be sent.  */
+# define F_GETSIG	11	/* Get number of signal to be sent.  */
+# define F_SETOWN_EX	15	/* Get owner (thread receiving SIGIO).  */
+# define F_GETOWN_EX	16	/* Set owner (thread receiving SIGIO).  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETLEASE	1024	/* Set a lease.	 */
+# define F_GETLEASE	1025	/* Enquire what lease is active.  */
+# define F_NOTIFY	1026	/* Request notfications on a directory.	 */
+# define F_SETPIPE_SZ	1031	/* Set pipe page size array.  */
+# define F_GETPIPE_SZ	1032	/* Set pipe page size array.  */
+#endif
+#ifdef __USE_XOPEN2K8
+# define F_DUPFD_CLOEXEC 1030	/* Duplicate file descriptor with
+				   close-on-exit set.  */
+#endif
+
+/* For F_[GET|SET]FD.  */
+#define FD_CLOEXEC	1	/* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
+#define F_RDLCK		0	/* Read lock.  */
+#define F_WRLCK		1	/* Write lock.	*/
+#define F_UNLCK		2	/* Remove lock.	 */
+
+/* For old implementation of bsd flock().  */
+#define F_EXLCK		4	/* or 3 */
+#define F_SHLCK		8	/* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for bsd flock(), also used by the kernel implementation.	*/
+# define LOCK_SH	1	/* shared lock */
+# define LOCK_EX	2	/* exclusive lock */
+# define LOCK_NB	4	/* or'd with one of the above to prevent
+				   blocking */
+# define LOCK_UN	8	/* remove lock */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND	32	/* This is a mandatory flock:	*/
+# define LOCK_READ	64	/* ... which allows concurrent read operations.	 */
+# define LOCK_WRITE	128	/* ... which allows concurrent write operations.  */
+# define LOCK_RW	192	/* ... Which allows concurrent read & write operations.	 */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY.  */
+# define DN_ACCESS	0x00000001	/* File accessed.  */
+# define DN_MODIFY	0x00000002	/* File modified.  */
+# define DN_CREATE	0x00000004	/* File created.  */
+# define DN_DELETE	0x00000008	/* File removed.  */
+# define DN_RENAME	0x00000010	/* File renamed.  */
+# define DN_ATTRIB	0x00000020	/* File changed attibutes.  */
+# define DN_MULTISHOT	0x80000000	/* Don't remove notifier.  */
+#endif
+
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+#ifndef __USE_FILE_OFFSET64
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#else
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#endif
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+#endif
+
+#ifdef __USE_GNU
+/* Owner types.  */
+enum __pid_type
+  {
+    F_OWNER_TID = 0,		/* Kernel thread.  */
+    F_OWNER_PID,		/* Process.  */
+    F_OWNER_PGRP,		/* Process group.  */
+    F_OWNER_GID = F_OWNER_PGRP	/* Alternative, obsolete name.  */
+  };
+
+/* Structure to use with F_GETOWN_EX and F_SETOWN_EX.  */
+struct f_owner_ex
+  {
+    enum __pid_type type;	/* Owner type of ID.  */
+    __pid_t pid;		/* ID of owner.  */
+  };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+   BSD systems which did not managed to hide these kernel macros.  */
+#ifdef	__USE_BSD
+# define FAPPEND	O_APPEND
+# define FFSYNC		O_FSYNC
+# define FASYNC		O_ASYNC
+# define FNONBLOCK	O_NONBLOCK
+# define FNDELAY	O_NDELAY
+#endif /* Use BSD.  */
+
+/* Advise to `posix_fadvise'.  */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL	0 /* No further special treatment.  */
+# define POSIX_FADV_RANDOM	1 /* Expect random page references.  */
+# define POSIX_FADV_SEQUENTIAL	2 /* Expect sequential page references.	 */
+# define POSIX_FADV_WILLNEED	3 /* Will need these pages.  */
+# define POSIX_FADV_DONTNEED	4 /* Don't need these pages.  */
+# define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
+#endif
+
+
+#ifdef __USE_GNU
+/* Flags for SYNC_FILE_RANGE.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
+
+/* Flags for SPLICE and VMSPLICE.  */
+# define SPLICE_F_MOVE		1	/* Move pages instead of copying.  */
+# define SPLICE_F_NONBLOCK	2	/* Don't block on the pipe splicing
+					   (but we may still block on the fd
+					   we splice from/to).  */
+# define SPLICE_F_MORE		4	/* Expect more data.  */
+# define SPLICE_F_GIFT		8	/* Pages passed in are a gift.  */
+
+
+/* File handle structure.  */
+struct file_handle
+{
+  unsigned int handle_bytes;
+  int handle_type;
+  /* File identifier.  */
+  unsigned char f_handle[0];
+};
+
+/* Maximum handle size (for now).  */
+# define MAX_HANDLE_SZ	128
+#endif
+
+__BEGIN_DECLS
+
+#ifdef __USE_GNU
+
+/* Provide kernel hint to read ahead.  */
+extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
+    __THROW;
+
+
+/* Selective file content synch'ing.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int sync_file_range (int __fd, __off64_t __offset, __off64_t __count,
+			    unsigned int __flags);
+
+
+/* Splice address range into a pipe.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
+			 size_t __count, unsigned int __flags);
+
+/* Splice two files together.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
+		       __off64_t *__offout, size_t __len,
+		       unsigned int __flags);
+
+/* In-kernel implementation of tee for pipe buffers.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern ssize_t tee (int __fdin, int __fdout, size_t __len,
+		    unsigned int __flags);
+
+/* Reserve storage for the data of the file associated with FD.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+# ifndef __USE_FILE_OFFSET64
+extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len);
+# else
+#  ifdef __REDIRECT
+extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset,
+				   __off64_t __len),
+		       fallocate64);
+#  else
+#   define fallocate fallocate64
+#  endif
+# endif
+# ifdef __USE_LARGEFILE64
+extern int fallocate64 (int __fd, int __mode, __off64_t __offset,
+			__off64_t __len);
+# endif
+
+
+/* Map file name to file handle.  */
+extern int name_to_handle_at (int __dfd, const char *__name,
+			      struct file_handle *__handle, int *__mnt_id,
+			      int __flags) __THROW;
+
+/* Open file using the file handle.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int open_by_handle_at (int __mountdirfd, struct file_handle *__handle,
+			      int __flags);
+
+#endif	/* use GNU */
+
+__END_DECLS
diff --git a/ports/sysdeps/unix/sysv/linux/generic/bits/msq.h b/ports/sysdeps/unix/sysv/linux/generic/bits/msq.h
new file mode 100644
index 000000000..351af358f
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/bits/msq.h
@@ -0,0 +1,84 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_MSG_H
+# error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
+#endif
+
+#include <bits/types.h>
+#include <bits/wordsize.h>
+
+/* Define options for message queue functions.  */
+#define MSG_NOERROR	010000	/* no error if message is too big */
+#ifdef __USE_GNU
+# define MSG_EXCEPT	020000	/* recv any msg except of specified type */
+#endif
+
+/* Types used in the structure definition.  */
+typedef unsigned long int msgqnum_t;
+typedef unsigned long int msglen_t;
+
+/* Structure of record for one message inside the kernel.
+   The type `struct msg' is opaque.  */
+struct msqid_ds
+{
+  struct ipc_perm msg_perm;	/* structure describing operation permission */
+  __time_t msg_stime;		/* time of last msgsnd command */
+#if __WORDSIZE == 32
+  unsigned long int __unused1;
+#endif
+  __time_t msg_rtime;		/* time of last msgrcv command */
+#if __WORDSIZE == 32
+  unsigned long int __unused2;
+#endif
+  __time_t msg_ctime;		/* time of last change */
+#if __WORDSIZE == 32
+  unsigned long int __unused3;
+#endif
+  unsigned long int __msg_cbytes; /* current number of bytes on queue */
+  msgqnum_t msg_qnum;		/* number of messages currently on queue */
+  msglen_t msg_qbytes;		/* max number of bytes allowed on queue */
+  __pid_t msg_lspid;		/* pid of last msgsnd() */
+  __pid_t msg_lrpid;		/* pid of last msgrcv() */
+  unsigned long int __unused4;
+  unsigned long int __unused5;
+};
+
+#ifdef __USE_MISC
+
+# define msg_cbytes	__msg_cbytes
+
+/* ipcs ctl commands */
+# define MSG_STAT 11
+# define MSG_INFO 12
+
+/* buffer for msgctl calls IPC_INFO, MSG_INFO */
+struct msginfo
+  {
+    int msgpool;
+    int msgmap;
+    int msgmax;
+    int msgmnb;
+    int msgmni;
+    int msgssz;
+    int msgtql;
+    unsigned short int msgseg;
+  };
+
+#endif /* __USE_MISC */
diff --git a/ports/sysdeps/unix/sysv/linux/generic/bits/sem.h b/ports/sysdeps/unix/sysv/linux/generic/bits/sem.h
new file mode 100644
index 000000000..bfb87dbef
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/bits/sem.h
@@ -0,0 +1,93 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_SEM_H
+# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
+#endif
+
+#include <sys/types.h>
+#include <bits/wordsize.h>
+
+/* Flags for `semop'.  */
+#define SEM_UNDO	0x1000		/* undo the operation on exit */
+
+/* Commands for `semctl'.  */
+#define GETPID		11		/* get sempid */
+#define GETVAL		12		/* get semval */
+#define GETALL		13		/* get all semval's */
+#define GETNCNT		14		/* get semncnt */
+#define GETZCNT		15		/* get semzcnt */
+#define SETVAL		16		/* set semval */
+#define SETALL		17		/* set all semval's */
+
+
+/* Data structure describing a set of semaphores.  */
+struct semid_ds
+{
+  struct ipc_perm sem_perm;		/* operation permission struct */
+  __time_t sem_otime;			/* last semop() time */
+#if __WORDSIZE == 32
+  unsigned long int __unused1;
+#endif
+  __time_t sem_ctime;			/* last time changed by semctl() */
+#if __WORDSIZE == 32
+  unsigned long int __unused2;
+#endif
+  unsigned long int sem_nsems;		/* number of semaphores in set */
+  unsigned long int __unused3;
+  unsigned long int __unused4;
+};
+
+/* The user should define a union like the following to use it for arguments
+   for `semctl'.
+
+   union semun
+   {
+     int val;				<= value for SETVAL
+     struct semid_ds *buf;		<= buffer for IPC_STAT & IPC_SET
+     unsigned short int *array;		<= array for GETALL & SETALL
+     struct seminfo *__buf;		<= buffer for IPC_INFO
+   };
+
+   Previous versions of this file used to define this union but this is
+   incorrect.  One can test the macro _SEM_SEMUN_UNDEFINED to see whether
+   one must define the union or not.  */
+#define _SEM_SEMUN_UNDEFINED	1
+
+#ifdef __USE_MISC
+
+/* ipcs ctl cmds */
+# define SEM_STAT 18
+# define SEM_INFO 19
+
+struct seminfo
+{
+  int semmap;
+  int semmni;
+  int semmns;
+  int semmnu;
+  int semmsl;
+  int semopm;
+  int semume;
+  int semusz;
+  int semvmx;
+  int semaem;
+};
+
+#endif /* __USE_MISC */
diff --git a/ports/sysdeps/unix/sysv/linux/generic/bits/shm.h b/ports/sysdeps/unix/sysv/linux/generic/bits/shm.h
new file mode 100644
index 000000000..8aec5fc2d
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/bits/shm.h
@@ -0,0 +1,112 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_SHM_H
+# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
+#endif
+
+#include <bits/types.h>
+#include <bits/wordsize.h>
+
+/* Permission flag for shmget.  */
+#define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
+#define SHM_W		0200		/* or S_IWUGO from <linux/stat.h> */
+
+/* Flags for `shmat'.  */
+#define SHM_RDONLY	010000		/* attach read-only else read-write */
+#define SHM_RND		020000		/* round attach address to SHMLBA */
+#define SHM_REMAP	040000		/* take-over region on attach */
+#define SHM_EXEC	0100000		/* execution access */
+
+/* Commands for `shmctl'.  */
+#define SHM_LOCK	11		/* lock segment (root only) */
+#define SHM_UNLOCK	12		/* unlock segment (root only) */
+
+__BEGIN_DECLS
+
+/* Segment low boundary address multiple.  */
+#define SHMLBA		(__getpagesize ())
+extern int __getpagesize (void) __THROW __attribute__ ((__const__));
+
+
+/* Type to count number of attaches.  */
+typedef unsigned long int shmatt_t;
+
+/* Data structure describing a shared memory segment.  */
+struct shmid_ds
+  {
+    struct ipc_perm shm_perm;		/* operation permission struct */
+    size_t shm_segsz;			/* size of segment in bytes */
+    __time_t shm_atime;			/* time of last shmat() */
+#if __WORDSIZE == 32
+    unsigned long int __unused1;
+#endif
+    __time_t shm_dtime;			/* time of last shmdt() */
+#if __WORDSIZE == 32
+    unsigned long int __unused2;
+#endif
+    __time_t shm_ctime;			/* time of last change by shmctl() */
+#if __WORDSIZE == 32
+    unsigned long int __unused3;
+#endif
+    __pid_t shm_cpid;			/* pid of creator */
+    __pid_t shm_lpid;			/* pid of last shmop */
+    shmatt_t shm_nattch;		/* number of current attaches */
+    unsigned long int __unused4;
+    unsigned long int __unused5;
+  };
+
+#ifdef __USE_MISC
+
+/* ipcs ctl commands */
+# define SHM_STAT 	13
+# define SHM_INFO 	14
+
+/* shm_mode upper byte flags */
+# define SHM_DEST	01000	/* segment will be destroyed on last detach */
+# define SHM_LOCKED	02000   /* segment will not be swapped */
+# define SHM_HUGETLB	04000	/* segment is mapped via hugetlb */
+# define SHM_NORESERVE	010000	/* don't check for reservations */
+
+struct	shminfo
+  {
+    unsigned long int shmmax;
+    unsigned long int shmmin;
+    unsigned long int shmmni;
+    unsigned long int shmseg;
+    unsigned long int shmall;
+    unsigned long int __unused1;
+    unsigned long int __unused2;
+    unsigned long int __unused3;
+    unsigned long int __unused4;
+  };
+
+struct shm_info
+  {
+    int used_ids;
+    unsigned long int shm_tot;	/* total allocated shm */
+    unsigned long int shm_rss;	/* total resident shm */
+    unsigned long int shm_swp;	/* total swapped shm */
+    unsigned long int swap_attempts;
+    unsigned long int swap_successes;
+  };
+
+#endif /* __USE_MISC */
+
+__END_DECLS
diff --git a/ports/sysdeps/unix/sysv/linux/generic/bits/stat.h b/ports/sysdeps/unix/sysv/linux/generic/bits/stat.h
new file mode 100644
index 000000000..d3cec6ff3
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/bits/stat.h
@@ -0,0 +1,172 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#if !defined _SYS_STAT_H && !defined _FCNTL_H
+# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
+#endif
+
+#ifndef _BITS_STAT_H
+#define _BITS_STAT_H	1
+
+#include <endian.h>
+#include <bits/wordsize.h>
+
+/* 64-bit libc uses the kernel's 'struct stat', accessed via the
+   stat() syscall; 32-bit libc uses the kernel's 'struct stat64'
+   and accesses it via the stat64() syscall.  All the various
+   APIs offered by libc use the kernel shape for their struct stat
+   structure; the only difference is that 32-bit programs not
+   using __USE_FILE_OFFSET64 only see the low 32 bits of some
+   of the fields (specifically st_ino, st_size, and st_blocks).  */
+#define _STAT_VER_KERNEL	0
+#define _STAT_VER_LINUX		0
+#define _STAT_VER		_STAT_VER_KERNEL
+
+/* Versions of the `xmknod' interface.  */
+#define _MKNOD_VER_LINUX	0
+
+#if defined __USE_FILE_OFFSET64
+# define __field64(type, type64, name) type64 name
+#elif __WORDSIZE == 64
+# define __field64(type, type64, name) type name
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+# define __field64(type, type64, name) \
+  type name __attribute__((aligned(8))); int __##name##_pad
+#else
+# define __field64(type, type64, name) \
+  int __##name##_pad __attribute__((aligned(8))); type name
+#endif
+
+struct stat
+  {
+    __dev_t st_dev;		/* Device.  */
+    __field64(__ino_t, __ino64_t, st_ino);  /* File serial number. */
+    __mode_t st_mode;		/* File mode.  */
+    __nlink_t st_nlink;		/* Link count.  */
+    __uid_t st_uid;		/* User ID of the file's owner.	*/
+    __gid_t st_gid;		/* Group ID of the file's group.*/
+    __dev_t st_rdev;		/* Device number, if device.  */
+    __dev_t __pad1;
+    __field64(__off_t, __off64_t, st_size);  /* Size of file, in bytes. */
+    __blksize_t st_blksize;	/* Optimal block size for I/O.  */
+    int __pad2;
+    __field64(__blkcnt_t, __blkcnt64_t, st_blocks);  /* 512-byte blocks */
+#ifdef __USE_MISC
+    /* Nanosecond resolution timestamps are stored in a format
+       equivalent to 'struct timespec'.  This is the type used
+       whenever possible but the Unix namespace rules do not allow the
+       identifier 'timespec' to appear in the <sys/stat.h> header.
+       Therefore we have to handle the use of this header in strictly
+       standard-compliant sources special.  */
+    struct timespec st_atim;		/* Time of last access.  */
+    struct timespec st_mtim;		/* Time of last modification.  */
+    struct timespec st_ctim;		/* Time of last status change.  */
+# define st_atime st_atim.tv_sec	/* Backward compatibility.  */
+# define st_mtime st_mtim.tv_sec
+# define st_ctime st_ctim.tv_sec
+#else
+    __time_t st_atime;			/* Time of last access.  */
+    unsigned long int st_atimensec;	/* Nscecs of last access.  */
+    __time_t st_mtime;			/* Time of last modification.  */
+    unsigned long int st_mtimensec;	/* Nsecs of last modification.  */
+    __time_t st_ctime;			/* Time of last status change.  */
+    unsigned long int st_ctimensec;	/* Nsecs of last status change.  */
+#endif
+    int __unused[2];
+  };
+
+#undef __field64
+
+#ifdef __USE_LARGEFILE64
+struct stat64
+  {
+    __dev_t st_dev;		/* Device.  */
+    __ino64_t st_ino;		/* File serial number.	*/
+    __mode_t st_mode;		/* File mode.  */
+    __nlink_t st_nlink;		/* Link count.  */
+    __uid_t st_uid;		/* User ID of the file's owner.	*/
+    __gid_t st_gid;		/* Group ID of the file's group.*/
+    __dev_t st_rdev;		/* Device number, if device.  */
+    __dev_t __pad1;
+    __off64_t st_size;		/* Size of file, in bytes.  */
+    __blksize_t st_blksize;	/* Optimal block size for I/O.  */
+    int __pad2;
+    __blkcnt64_t st_blocks;	/* Nr. 512-byte blocks allocated.  */
+#ifdef __USE_MISC
+    /* Nanosecond resolution timestamps are stored in a format
+       equivalent to 'struct timespec'.  This is the type used
+       whenever possible but the Unix namespace rules do not allow the
+       identifier 'timespec' to appear in the <sys/stat.h> header.
+       Therefore we have to handle the use of this header in strictly
+       standard-compliant sources special.  */
+    struct timespec st_atim;		/* Time of last access.  */
+    struct timespec st_mtim;		/* Time of last modification.  */
+    struct timespec st_ctim;		/* Time of last status change.  */
+#else
+    __time_t st_atime;			/* Time of last access.  */
+    unsigned long int st_atimensec;	/* Nscecs of last access.  */
+    __time_t st_mtime;			/* Time of last modification.  */
+    unsigned long int st_mtimensec;	/* Nsecs of last modification.  */
+    __time_t st_ctime;			/* Time of last status change.  */
+    unsigned long int st_ctimensec;	/* Nsecs of last status change.  */
+#endif
+    int __unused[2];
+  };
+#endif
+
+/* Tell code we have these members.  */
+#define	_STATBUF_ST_BLKSIZE
+#define _STATBUF_ST_RDEV
+/* Nanosecond resolution time values are supported.  */
+#define _STATBUF_ST_NSEC
+
+/* Encoding of the file mode.  */
+
+#define	__S_IFMT	0170000	/* These bits determine file type.  */
+
+/* File types.  */
+#define	__S_IFDIR	0040000	/* Directory.  */
+#define	__S_IFCHR	0020000	/* Character device.  */
+#define	__S_IFBLK	0060000	/* Block device.  */
+#define	__S_IFREG	0100000	/* Regular file.  */
+#define	__S_IFIFO	0010000	/* FIFO.  */
+#define	__S_IFLNK	0120000	/* Symbolic link.  */
+#define	__S_IFSOCK	0140000	/* Socket.  */
+
+/* POSIX.1b objects.  Note that these macros always evaluate to zero.  But
+   they do it by enforcing the correct use of the macros.  */
+#define __S_TYPEISMQ(buf)  ((buf)->st_mode - (buf)->st_mode)
+#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
+#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
+
+/* Protection bits.  */
+
+#define	__S_ISUID	04000	/* Set user ID on execution.  */
+#define	__S_ISGID	02000	/* Set group ID on execution.  */
+#define	__S_ISVTX	01000	/* Save swapped text after use (sticky).  */
+#define	__S_IREAD	0400	/* Read by owner.  */
+#define	__S_IWRITE	0200	/* Write by owner.  */
+#define	__S_IEXEC	0100	/* Execute by owner.  */
+
+#ifdef __USE_ATFILE
+# define UTIME_NOW	((1l << 30) - 1l)
+# define UTIME_OMIT	((1l << 30) - 2l)
+#endif
+
+#endif /* bits/stat.h */
diff --git a/ports/sysdeps/unix/sysv/linux/generic/bits/statfs.h b/ports/sysdeps/unix/sysv/linux/generic/bits/statfs.h
new file mode 100644
index 000000000..bde1958a9
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/bits/statfs.h
@@ -0,0 +1,87 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_STATFS_H
+# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
+#endif
+
+#include <endian.h>
+#include <bits/types.h>
+#include <bits/wordsize.h>
+
+/* 64-bit libc uses the kernel's 'struct statfs', accessed via the
+   statfs() syscall; 32-bit libc uses the kernel's 'struct statfs64'
+   and accesses it via the statfs64() syscall.  All the various
+   APIs offered by libc use the kernel shape for their struct statfs
+   structure; the only difference is that 32-bit programs not
+   using __USE_FILE_OFFSET64 only see the low 32 bits of some
+   of the fields (the __fsblkcnt_t and __fsfilcnt_t fields).  */
+
+#if defined __USE_FILE_OFFSET64
+# define __field64(type, type64, name) type64 name
+#elif __WORDSIZE == 64
+# define __field64(type, type64, name) type name
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+# define __field64(type, type64, name) \
+  type name __attribute__((aligned(8))); int __##name##_pad
+#else
+# define __field64(type, type64, name) \
+  int __##name##_pad __attribute__((aligned(8))); type name
+#endif
+
+struct statfs
+  {
+    __SWORD_TYPE f_type;
+    __SWORD_TYPE f_bsize;
+    __field64(__fsblkcnt_t, __fsblkcnt64_t, f_blocks);
+    __field64(__fsblkcnt_t, __fsblkcnt64_t, f_bfree);
+    __field64(__fsblkcnt_t, __fsblkcnt64_t, f_bavail);
+    __field64(__fsfilcnt_t, __fsfilcnt64_t, f_files);
+    __field64(__fsfilcnt_t, __fsfilcnt64_t, f_ffree);
+    __fsid_t f_fsid;
+    __SWORD_TYPE f_namelen;
+    __SWORD_TYPE f_frsize;
+    __SWORD_TYPE f_flags;
+    __SWORD_TYPE f_spare[4];
+  } __attribute__((aligned(8)));
+
+#undef __field64
+
+#ifdef __USE_LARGEFILE64
+struct statfs64
+  {
+    __SWORD_TYPE f_type;
+    __SWORD_TYPE f_bsize;
+    __fsblkcnt64_t f_blocks;
+    __fsblkcnt64_t f_bfree;
+    __fsblkcnt64_t f_bavail;
+    __fsfilcnt64_t f_files;
+    __fsfilcnt64_t f_ffree;
+    __fsid_t f_fsid;
+    __SWORD_TYPE f_namelen;
+    __SWORD_TYPE f_frsize;
+    __SWORD_TYPE f_flags;
+    __SWORD_TYPE f_spare[4];
+  } __attribute__((aligned(8)));
+#endif
+
+/* Tell code we have these members.  */
+#define _STATFS_F_NAMELEN
+#define _STATFS_F_FRSIZE
+#define _STATFS_F_FLAGS
diff --git a/ports/sysdeps/unix/sysv/linux/generic/bits/typesizes.h b/ports/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
new file mode 100644
index 000000000..9ff568d93
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
@@ -0,0 +1,67 @@
+/* bits/typesizes.h -- underlying types for *_t.  For the generic Linux ABI.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _BITS_TYPES_H
+# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead."
+#endif
+
+#ifndef	_BITS_TYPESIZES_H
+#define	_BITS_TYPESIZES_H	1
+
+/* See <bits/types.h> for the meaning of these macros.  This file exists so
+   that <bits/types.h> need not vary across different GNU platforms.  */
+
+#define __DEV_T_TYPE		__UQUAD_TYPE
+#define __UID_T_TYPE		__U32_TYPE
+#define __GID_T_TYPE		__U32_TYPE
+#define __INO_T_TYPE		__ULONGWORD_TYPE
+#define __INO64_T_TYPE		__UQUAD_TYPE
+#define __MODE_T_TYPE		__U32_TYPE
+#define __NLINK_T_TYPE		__U32_TYPE
+#define __OFF_T_TYPE		__SLONGWORD_TYPE
+#define __OFF64_T_TYPE		__SQUAD_TYPE
+#define __PID_T_TYPE		__S32_TYPE
+#define __RLIM_T_TYPE		__ULONGWORD_TYPE
+#define __RLIM64_T_TYPE		__UQUAD_TYPE
+#define	__BLKCNT_T_TYPE		__SLONGWORD_TYPE
+#define	__BLKCNT64_T_TYPE	__SQUAD_TYPE
+#define	__FSBLKCNT_T_TYPE	__ULONGWORD_TYPE
+#define	__FSBLKCNT64_T_TYPE	__UQUAD_TYPE
+#define	__FSFILCNT_T_TYPE	__ULONGWORD_TYPE
+#define	__FSFILCNT64_T_TYPE	__UQUAD_TYPE
+#define	__ID_T_TYPE		__U32_TYPE
+#define __CLOCK_T_TYPE		__SLONGWORD_TYPE
+#define __TIME_T_TYPE		__SLONGWORD_TYPE
+#define __USECONDS_T_TYPE	__U32_TYPE
+#define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
+#define __DADDR_T_TYPE		__S32_TYPE
+#define __SWBLK_T_TYPE		__SLONGWORD_TYPE
+#define __KEY_T_TYPE		__S32_TYPE
+#define __CLOCKID_T_TYPE	__S32_TYPE
+#define __TIMER_T_TYPE		void *
+#define __BLKSIZE_T_TYPE	__S32_TYPE
+#define __FSID_T_TYPE		struct { int __val[2]; }
+#define __SSIZE_T_TYPE		__SWORD_TYPE
+
+/* Number of descriptors that can fit in an `fd_set'.  */
+#define	__FD_SETSIZE		1024
+
+
+#endif /* bits/typesizes.h */
diff --git a/ports/sysdeps/unix/sysv/linux/generic/brk.c b/ports/sysdeps/unix/sysv/linux/generic/brk.c
new file mode 100644
index 000000000..eb2bc6b9d
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/brk.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sysdep.h>
+
+/* This must be initialized data because commons can't have aliases.  */
+void *__curbrk = 0;
+
+/* Old braindamage in GCC's crtstuff.c requires this symbol in an attempt
+   to work around different old braindamage in the old Linux ELF dynamic
+   linker.  */
+weak_alias (__curbrk, ___brk_addr)
+
+int
+__brk (void *addr)
+{
+  INTERNAL_SYSCALL_DECL (err);
+
+  __curbrk = (void *) INTERNAL_SYSCALL (brk, err, 1, addr);
+  if (__curbrk < addr)
+    {
+      __set_errno (ENOMEM);
+      return -1;
+    }
+
+  return 0;
+}
+weak_alias (__brk, brk)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/chmod.c b/ports/sysdeps/unix/sysv/linux/generic/chmod.c
new file mode 100644
index 000000000..96e5641c8
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/chmod.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+/* Change the protections of FILE to MODE.  */
+int
+__chmod (const char *file, mode_t mode)
+{
+  return INLINE_SYSCALL (fchmodat, 3, AT_FDCWD, file, mode);
+}
+weak_alias (__chmod, chmod)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/chown.c b/ports/sysdeps/unix/sysv/linux/generic/chown.c
new file mode 100644
index 000000000..6ec0263f6
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/chown.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+
+/* Change the owner and group of FILE.  */
+int
+__chown (const char *file, uid_t owner, gid_t group)
+{
+  return INLINE_SYSCALL (fchownat, 5, AT_FDCWD, file, owner, group, 0);
+}
+libc_hidden_def (__chown)
+weak_alias (__chown, chown)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/creat.c b/ports/sysdeps/unix/sysv/linux/generic/creat.c
new file mode 100644
index 000000000..8ef5c0376
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/creat.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sysdep-cancel.h>
+
+#undef	creat
+
+/* Create FILE with protections MODE.  */
+int
+__libc_creat (const char *file, mode_t mode)
+{
+  return __open (file, O_WRONLY | O_CREAT | O_TRUNC, mode);
+}
+weak_alias (__libc_creat, creat)
+
+/* __open handles cancellation.  */
+LIBC_CANCEL_HANDLED ();
+
+#if __WORDSIZE == 64
+weak_alias (__libc_creat, creat64)
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/generic/dl-origin.c b/ports/sysdeps/unix/sysv/linux/generic/dl-origin.c
new file mode 100644
index 000000000..46bbbb118
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/dl-origin.c
@@ -0,0 +1,82 @@
+/* Find path of executable.
+   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.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/param.h>
+#include <ldsodefs.h>
+#include <sysdep.h>
+
+#include <dl-dst.h>
+
+/* On Linux >= 2.1 systems which have the dcache implementation we can get
+   the path of the application from the /proc/self/exe symlink.  Try this
+   first and fall back on the generic method if necessary.  */
+
+const char *
+_dl_get_origin (void)
+{
+  char linkval[PATH_MAX];
+  char *result;
+  int len;
+  INTERNAL_SYSCALL_DECL (err);
+
+  len = INTERNAL_SYSCALL (readlinkat, err, 4, AT_FDCWD, "/proc/self/exe",
+                          linkval, sizeof (linkval));
+  if (! INTERNAL_SYSCALL_ERROR_P (len, err) && len > 0 && linkval[0] != '[')
+    {
+      /* We can use this value.  */
+      assert (linkval[0] == '/');
+      while (len > 1 && linkval[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, linkval, len - 1)) = '\0';
+    }
+  else
+    {
+      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)
+	{
+	  size_t len = strlen (GLRO(dl_origin_path));
+	  result = (char *) malloc (len + 1);
+	  if (result == NULL)
+	    result = (char *) -1;
+	  else
+	    {
+	      char *cp = __mempcpy (result, GLRO(dl_origin_path), len);
+	      while (cp > result + 1 && cp[-1] == '/')
+		--cp;
+	      *cp = '\0';
+	    }
+	}
+    }
+
+  return result;
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/dup2.c b/ports/sysdeps/unix/sysv/linux/generic/dup2.c
new file mode 100644
index 000000000..4562f19ad
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/dup2.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <unistd.h>
+
+/* Duplicate FD to FD2, closing the old FD2 and making FD2 be
+   open the same file as FD is.  Return FD2 or -1.  */
+int
+__dup2 (int fd, int fd2)
+{
+  /* For the degenerate case, check if the fd is valid (by trying to
+     get the file status flags) and return it, or else return EBADF.  */
+  if (fd == fd2)
+    return __libc_fcntl (fd, F_GETFL, 0) < 0 ? -1 : fd;
+
+  return INLINE_SYSCALL (dup3, 3, fd, fd2, 0);
+}
+libc_hidden_def (__dup2)
+weak_alias (__dup2, dup2)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/epoll_create.c b/ports/sysdeps/unix/sysv/linux/generic/epoll_create.c
new file mode 100644
index 000000000..ab6b158a7
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/epoll_create.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stddef.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/epoll.h>
+
+libc_hidden_proto (epoll_create)
+
+int
+epoll_create (int size)
+{
+  if (size <= 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return INLINE_SYSCALL (epoll_create1, 1, 0);
+}
+libc_hidden_def (epoll_create)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/epoll_wait.c b/ports/sysdeps/unix/sysv/linux/generic/epoll_wait.c
new file mode 100644
index 000000000..eda64bc94
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/epoll_wait.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/epoll.h>
+
+libc_hidden_proto (epoll_pwait)
+
+int
+epoll_wait (int epfd, struct epoll_event *events, int maxevents, int timeout)
+{
+  return epoll_pwait (epfd, events, maxevents, timeout, NULL);
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/futimesat.c b/ports/sysdeps/unix/sysv/linux/generic/futimesat.c
new file mode 100644
index 000000000..20153661c
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/futimesat.c
@@ -0,0 +1,53 @@
+/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <utime.h>
+#include <sys/time.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+
+
+/* Change the access time of FILE relative to FD to TVP[0] and
+   the modification time of FILE to TVP[1].  */
+int
+futimesat (int fd, const char *file, const struct timeval tvp[2])
+{
+  struct timespec tsp[2];
+  int result;
+
+  if (tvp)
+    {
+      if (tvp[0].tv_usec >= 1000000 || tvp[0].tv_usec < 0 ||
+          tvp[1].tv_usec >= 1000000 || tvp[1].tv_usec < 0)
+        {
+          __set_errno (EINVAL);
+          return -1;
+        }
+      TIMEVAL_TO_TIMESPEC (&tvp[0], &tsp[0]);
+      TIMEVAL_TO_TIMESPEC (&tvp[1], &tsp[1]);
+    }
+
+  result = INLINE_SYSCALL (utimensat, 4, fd, file, tvp ? tsp : NULL, 0);
+  return result;
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/getdents.c b/ports/sysdeps/unix/sysv/linux/generic/getdents.c
new file mode 100644
index 000000000..14dbbc71a
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/getdents.c
@@ -0,0 +1 @@
+/* Defined in getdents64.c */
diff --git a/ports/sysdeps/unix/sysv/linux/generic/getdents64.c b/ports/sysdeps/unix/sysv/linux/generic/getdents64.c
new file mode 100644
index 000000000..9a01f4bf6
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/getdents64.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stddef.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <bits/wordsize.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* The kernel struct linux_dirent64 matches the 'struct getdents64' type.  */
+ssize_t
+__getdents64 (int fd, char *buf, size_t nbytes)
+{
+  return INLINE_SYSCALL (getdents64, 3, fd, buf, nbytes);
+}
+
+#if __WORDSIZE == 64
+strong_alias (__getdents64, __getdents)
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/generic/inotify_init.c b/ports/sysdeps/unix/sysv/linux/generic/inotify_init.c
new file mode 100644
index 000000000..84c0b357e
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/inotify_init.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stddef.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/inotify.h>
+
+libc_hidden_proto (inotify_init)
+
+int
+inotify_init (void)
+{
+  return INLINE_SYSCALL (inotify_init1, 1, 0);
+}
+libc_hidden_def (inotify_init)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/kernel_stat.h b/ports/sysdeps/unix/sysv/linux/generic/kernel_stat.h
new file mode 100644
index 000000000..7343d83f6
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/kernel_stat.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <bits/wordsize.h>
+
+#define STAT_IS_KERNEL_STAT 1
+
+/* We provide separate 32-bit API versions that check for EOVERFLOW. */
+#if __WORDSIZE == 64
+# define XSTAT_IS_XSTAT64 1
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/generic/lchown.c b/ports/sysdeps/unix/sysv/linux/generic/lchown.c
new file mode 100644
index 000000000..a35ef951c
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/lchown.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+
+/* Change the owner and group of FILE.  */
+int
+__lchown (const char *file, uid_t owner, gid_t group)
+{
+  return INLINE_SYSCALL (fchownat, 5, AT_FDCWD, file, owner, group,
+                         AT_SYMLINK_NOFOLLOW);
+}
+weak_alias (__lchown, lchown)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/link.c b/ports/sysdeps/unix/sysv/linux/generic/link.c
new file mode 100644
index 000000000..bab52d1da
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/link.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* Make a link to FROM called TO.  */
+int
+__link (const char *from, const char *to)
+{
+  return INLINE_SYSCALL (linkat, 5, AT_FDCWD, from, AT_FDCWD, to, 0);
+}
+
+weak_alias (__link, link)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/lxstat.c b/ports/sysdeps/unix/sysv/linux/generic/lxstat.c
new file mode 100644
index 000000000..c99ead162
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/lxstat.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+/* Ignore prototype to avoid error if we alias __lxstat and __lxstat64. */
+#define __lxstat64 __lxstat64_disable
+
+#include <errno.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Get information about the file NAME in BUF.  */
+int
+__lxstat (int vers, const char *name, struct stat *buf)
+{
+  if (vers == _STAT_VER_KERNEL)
+    return INLINE_SYSCALL (newfstatat, 4, AT_FDCWD, name, buf,
+                           AT_SYMLINK_NOFOLLOW);
+  errno = EINVAL;
+  return -1;
+}
+
+hidden_def (__lxstat)
+weak_alias (__lxstat, _lxstat);
+#ifdef XSTAT_IS_XSTAT64
+#undef __lxstat64
+strong_alias (__lxstat, __lxstat64);
+hidden_ver (__lxstat, __lxstat64)
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/generic/mkdir.c b/ports/sysdeps/unix/sysv/linux/generic/mkdir.c
new file mode 100644
index 000000000..bf345bc53
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/mkdir.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <sysdep.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+
+/* Create a directory named PATH with protections MODE.  */
+int
+__mkdir (const char *path, mode_t mode)
+{
+  return INLINE_SYSCALL (mkdirat, 3, AT_FDCWD, path, mode);
+}
+weak_alias (__mkdir, mkdir)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/nptl/not-cancel.h b/ports/sysdeps/unix/sysv/linux/generic/nptl/not-cancel.h
new file mode 100644
index 000000000..e6a0d135c
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/nptl/not-cancel.h
@@ -0,0 +1 @@
+#include <nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h>
diff --git a/ports/sysdeps/unix/sysv/linux/generic/open.c b/ports/sysdeps/unix/sysv/linux/generic/open.c
new file mode 100644
index 000000000..c985835ca
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/open.c
@@ -0,0 +1,72 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <sysdep-cancel.h>
+
+/* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
+   a third argument is the file protection.  */
+int
+__libc_open (const char *file, int oflag, ...)
+{
+  int mode = 0;
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start (arg, oflag);
+      mode = va_arg (arg, int);
+      va_end (arg);
+    }
+
+  if (SINGLE_THREAD_P)
+    return INLINE_SYSCALL (openat, 4, AT_FDCWD, file, oflag, mode);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  int result = INLINE_SYSCALL (openat, 4, AT_FDCWD, file, oflag, mode);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+libc_hidden_def (__libc_open)
+
+weak_alias (__libc_open, __open)
+libc_hidden_weak (__open)
+weak_alias (__libc_open, open)
+
+int
+__open_nocancel (const char *file, int oflag, ...)
+{
+  int mode = 0;
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start (arg, oflag);
+      mode = va_arg (arg, int);
+      va_end (arg);
+    }
+
+  return INLINE_SYSCALL (openat, 4, AT_FDCWD, file, oflag, mode);
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/open64.c b/ports/sysdeps/unix/sysv/linux/generic/open64.c
new file mode 100644
index 000000000..199699a1c
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/open64.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <sysdep-cancel.h>
+
+/* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
+   a third argument is the file protection.  */
+int
+__libc_open64 (const char *file, int oflag, ...)
+{
+  int mode = 0;
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start (arg, oflag);
+      mode = va_arg (arg, int);
+      va_end (arg);
+    }
+
+  if (SINGLE_THREAD_P)
+    return INLINE_SYSCALL (openat, 4, AT_FDCWD, file,
+                           oflag | O_LARGEFILE, mode);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  int result = INLINE_SYSCALL (openat, 4, AT_FDCWD, file,
+                               oflag | O_LARGEFILE, mode);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+weak_alias (__libc_open64, __open64)
+libc_hidden_weak (__open64)
+weak_alias (__libc_open64, open64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/pause.c b/ports/sysdeps/unix/sysv/linux/generic/pause.c
new file mode 100644
index 000000000..f1333cb5a
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/pause.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <signal.h>
+#include <unistd.h>
+#include <sysdep-cancel.h>
+
+/* Suspend the process until a signal arrives.
+   This always returns -1 and sets errno to EINTR.  */
+
+static int
+__syscall_pause (void)
+{
+  sigset_t set;
+
+  int rc =
+    INLINE_SYSCALL (rt_sigprocmask, 4, SIG_BLOCK, NULL, &set, _NSIG / 8);
+  if (rc == 0)
+    rc = INLINE_SYSCALL (rt_sigsuspend, 2, &set, _NSIG / 8);
+
+  return rc;
+}
+
+int
+__libc_pause (void)
+{
+  if (SINGLE_THREAD_P)
+    return __syscall_pause ();
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  int result = __syscall_pause ();
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+weak_alias (__libc_pause, pause)
+
+#ifndef NO_CANCELLATION
+# include <not-cancel.h>
+
+int
+__pause_nocancel (void)
+{
+  return __syscall_pause ();
+}
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/generic/pipe.c b/ports/sysdeps/unix/sysv/linux/generic/pipe.c
new file mode 100644
index 000000000..d6d5ef1ab
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/pipe.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <unistd.h>
+#include <stddef.h>
+
+/* Create a one-way communication channel (__pipe).
+   If successful, two file descriptors are stored in PIPEDES;
+   bytes written on PIPEDES[1] can be read from PIPEDES[0].
+   Returns 0 if successful, -1 if not.  */
+int
+__pipe (int __pipedes[2])
+{
+  return INLINE_SYSCALL (pipe2, 2, __pipedes, 0);
+}
+libc_hidden_def (__pipe)
+weak_alias (__pipe, pipe)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/poll.c b/ports/sysdeps/unix/sysv/linux/generic/poll.c
new file mode 100644
index 000000000..1fac1e774
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/poll.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/poll.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+int
+__poll (struct pollfd *fds, nfds_t nfds, int timeout)
+{
+  struct timespec timeout_ts;
+  struct timespec *timeout_ts_p = NULL;
+
+  if (timeout >= 0)
+    {
+      timeout_ts.tv_sec = timeout / 1000;
+      timeout_ts.tv_nsec = (timeout % 1000) * 1000000;
+      timeout_ts_p = &timeout_ts;
+    }
+
+  if (SINGLE_THREAD_P)
+    return INLINE_SYSCALL (ppoll, 5, fds, nfds, timeout_ts_p, NULL, 0);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  int result = INLINE_SYSCALL (ppoll, 5, fds, nfds, timeout_ts_p, NULL, 0);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+libc_hidden_def (__poll)
+weak_alias (__poll, poll)
+strong_alias (__poll, __libc_poll)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/readlink.c b/ports/sysdeps/unix/sysv/linux/generic/readlink.c
new file mode 100644
index 000000000..ee46c1961
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/readlink.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* Read the contents of the symbolic link PATH into no more than
+   LEN bytes of BUF.  The contents are not null-terminated.
+   Returns the number of characters read, or -1 for errors.  */
+ssize_t
+__readlink (const char *path, char *buf, size_t len)
+{
+  return INLINE_SYSCALL (readlinkat, 4, AT_FDCWD, path, buf, len);
+}
+weak_alias (__readlink, readlink)
diff --git a/ports/sysdeps/unix/sysv/linux/mips/sys/syscall.h b/ports/sysdeps/unix/sysv/linux/generic/readlink_chk.c
index f6458cd31..db8aa2055 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/sys/syscall.h
+++ b/ports/sysdeps/unix/sysv/linux/generic/readlink_chk.c
@@ -1,5 +1,6 @@
-/* Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
@@ -16,27 +17,24 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#ifndef _SYSCALL_H
-#define _SYSCALL_H	1
-
-/* This file should list the numbers of the system the system knows.
-   But instead of duplicating this we use the information available
-   from the kernel sources.  */
-#ifdef _LIBC
-/* Since the kernel doesn't define macro names in a way usable for
-   glibc, we preprocess this header, and use it during the glibc build
-   process.  */
-# include <asm-unistd.h>
-#else
-# include <asm/unistd.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/param.h>
+#ifdef HAVE_INLINED_SYSCALLS
+# include <errno.h>
+# include <sysdep.h>
 #endif
 
-#ifndef _LIBC
-/* The Linux kernel header file defines macros `__NR_<name>', but some
-   programs expect the traditional form `SYS_<name>'.  So in building libc
-   we scan the kernel's list and produce <bits/syscall.h> with macros for
-   all the `SYS_' names.  */
-# include <bits/syscall.h>
-#endif
 
+ssize_t
+__readlink_chk (const char *path, void *buf, size_t len, size_t buflen)
+{
+  if (len > buflen)
+    __chk_fail ();
+
+#ifdef HAVE_INLINED_SYSCALLS
+  return INLINE_SYSCALL (readlinkat, 4, AT_FDCWD, path, buf, len);
+#else
+  return __readlink (path, buf, len);
 #endif
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/recv.c b/ports/sysdeps/unix/sysv/linux/generic/recv.c
new file mode 100644
index 000000000..d76a9e60b
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/recv.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sysdep-cancel.h>
+#include <libc-symbols.h>
+
+ssize_t
+__libc_recv (int sockfd, void *buffer, size_t len, int flags)
+{
+  ssize_t result;
+
+  if (SINGLE_THREAD_P)
+    result = INLINE_SYSCALL (recvfrom, 6, sockfd, buffer, len, flags,
+                             NULL, NULL);
+  else
+    {
+      int oldtype = LIBC_CANCEL_ASYNC ();
+
+      result = INLINE_SYSCALL (recvfrom, 6, sockfd, buffer, len, flags,
+                               NULL, NULL);
+
+      LIBC_CANCEL_RESET (oldtype);
+    }
+
+  return result;
+}
+strong_alias (__libc_recv, __recv)
+weak_alias (__libc_recv, recv)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/rename.c b/ports/sysdeps/unix/sysv/linux/generic/rename.c
new file mode 100644
index 000000000..7e501a40f
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/rename.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sysdep.h>
+
+/* Rename the file OLD to NEW.  */
+int
+rename (const char *old, const char *new)
+{
+  return INLINE_SYSCALL (renameat, 4, AT_FDCWD, old, AT_FDCWD, new);
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/rmdir.c b/ports/sysdeps/unix/sysv/linux/generic/rmdir.c
new file mode 100644
index 000000000..2478fc6d8
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/rmdir.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+
+/* Remove the directory PATH.  */
+int
+__rmdir (const char *path)
+{
+  return INLINE_SYSCALL (unlinkat, 3, AT_FDCWD, path, AT_REMOVEDIR);
+}
+weak_alias (__rmdir, rmdir)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/select.c b/ports/sysdeps/unix/sysv/linux/generic/select.c
new file mode 100644
index 000000000..d206040d1
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/select.c
@@ -0,0 +1,75 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/select.h>
+#include <errno.h>
+#include <sysdep-cancel.h>
+
+/* Check the first NFDS descriptors each in READFDS (if not NULL) for read
+   readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS
+   (if not NULL) for exceptional conditions.  If TIMEOUT is not NULL, time out
+   after waiting the interval specified therein.  Returns the number of ready
+   descriptors, or -1 for errors.  */
+
+int
+__select(int nfds, fd_set *readfds,
+         fd_set *writefds, fd_set *exceptfds,
+         struct timeval *timeout)
+{
+  int result;
+  struct timespec ts, *tsp = NULL;
+
+  if (timeout)
+    {
+      TIMEVAL_TO_TIMESPEC (timeout, &ts);
+      tsp = &ts;
+    }
+
+  if (SINGLE_THREAD_P)
+    {
+      result = INLINE_SYSCALL (pselect6, 6, nfds, readfds, writefds, exceptfds,
+                               tsp, NULL);
+    }
+  else
+    {
+      int oldtype = LIBC_CANCEL_ASYNC ();
+
+      result = INLINE_SYSCALL (pselect6, 6, nfds, readfds, writefds, exceptfds,
+                               tsp, NULL);
+
+      LIBC_CANCEL_RESET (oldtype);
+    }
+
+  if (timeout)
+    {
+      /* Linux by default will update the timeout after a pselect6 syscall
+         (though the pselect() glibc call suppresses this behavior).
+         Since select() on Linux has the same behavior as the pselect6
+         syscall, we update the timeout here.  */
+      TIMESPEC_TO_TIMEVAL (timeout, &ts);
+    }
+
+  return result;
+}
+libc_hidden_def (__select)
+
+weak_alias (__select, select)
+weak_alias (__select, __libc_select)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/send.c b/ports/sysdeps/unix/sysv/linux/generic/send.c
new file mode 100644
index 000000000..1ff25c51b
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/send.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sysdep-cancel.h>
+#include <libc-symbols.h>
+
+ssize_t
+__libc_send (int sockfd, const void *buffer, size_t len, int flags)
+{
+  ssize_t result;
+
+  if (SINGLE_THREAD_P)
+    result = INLINE_SYSCALL (sendto, 6, sockfd, buffer, len, flags, NULL, 0);
+  else
+    {
+      int oldtype = LIBC_CANCEL_ASYNC ();
+
+      result = INLINE_SYSCALL (sendto, 6, sockfd, buffer, len, flags, NULL, 0);
+
+      LIBC_CANCEL_RESET (oldtype);
+    }
+
+  return result;
+}
+strong_alias (__libc_send, __send)
+weak_alias (__libc_send, send)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/symlink.c b/ports/sysdeps/unix/sysv/linux/generic/symlink.c
new file mode 100644
index 000000000..ed2b2ab52
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/symlink.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* Make a link to FROM called TO.  */
+int
+__symlink (const char *from, const char *to)
+{
+  return INLINE_SYSCALL (symlinkat, 3, from, AT_FDCWD, to);
+}
+weak_alias (__symlink, symlink)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/syscalls.list b/ports/sysdeps/unix/sysv/linux/generic/syscalls.list
new file mode 100644
index 000000000..c9602ca87
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/syscalls.list
@@ -0,0 +1,32 @@
+# File name	Caller	Syscall name	# args	Strong name	Weak names
+
+# SysV APIs
+msgget		-	msgget		i:ii	__msgget	msgget
+msgctl		-	msgctl		i:iip	__msgctl	msgctl
+msgrcv		-	msgrcv		Ci:ibnii __msgrcv	msgrcv
+msgsnd		-	msgsnd		Ci:ibni	__msgsnd	msgsnd
+semget		-	semget		i:iii	__semget	semget
+semctl		-	semctl		i:iiii	__semctl	semctl
+semtimedop	-	semtimedop	i:ipip	semtimedop
+semop		-	semop		i:ipi	__semop		semop
+shmget		-	shmget		i:iii	__shmget	shmget
+shmctl		-	shmctl		i:iip	__shmctl	shmctl
+shmat		-	shmat		i:ipi	__shmat		shmat
+shmdt		-	shmdt		i:s	__shmdt		shmdt
+
+# Socket APIs
+socket		-	socket		i:iii	__socket	socket
+socketpair	-	socketpair	i:iiif	__socketpair	socketpair
+bind		-	bind		i:ipi	__bind		bind
+listen		-	listen		i:ii	__listen	listen
+accept		-	accept		Ci:iBN	__libc_accept	__accept accept
+connect		-	connect		Ci:ipi	__libc_connect	__connect_internal __connect connect
+getsockname	-	getsockname	i:ipp	__getsockname	getsockname
+getpeername	-	getpeername	i:ipp	__getpeername	getpeername
+sendto		-	sendto		Ci:ibnibn	__libc_sendto	__sendto sendto
+recvfrom	-	recvfrom	Ci:ibniBN	__libc_recvfrom	__recvfrom recvfrom
+setsockopt	-	setsockopt	i:iiibn	__setsockopt	setsockopt
+getsockopt	-	getsockopt	i:iiiBN	__getsockopt	getsockopt
+shutdown	-	shutdown	i:ii	__shutdown	shutdown
+sendmsg		-	sendmsg		Ci:ipi	__libc_sendmsg	__sendmsg sendmsg
+recvmsg		-	recvmsg		Ci:ipi	__libc_recvmsg	__recvmsg recvmsg
diff --git a/ports/sysdeps/unix/sysv/linux/generic/sysctl.c b/ports/sysdeps/unix/sysv/linux/generic/sysctl.c
new file mode 100644
index 000000000..7cab3a4c2
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/sysctl.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* This deprecated syscall is no longer used (replaced with /proc/sys).  */
+int
+sysctl (int *name, int nlen, void *oldval, size_t *oldlenp,
+        void *newval, size_t newlen)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (sysctl)
+#include <stub-tag.h>
diff --git a/ports/sysdeps/unix/sysv/linux/generic/sysdep.h b/ports/sysdeps/unix/sysv/linux/generic/sysdep.h
new file mode 100644
index 000000000..45151c07e
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/sysdep.h
@@ -0,0 +1,42 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <bits/wordsize.h>
+#include <kernel-features.h>
+
+/* Provide the common name to allow more code reuse.  */
+#define __NR__llseek __NR_llseek
+
+#if __WORDSIZE == 64
+/* By defining the older names, glibc will build syscall wrappers for
+   both pread and pread64; sysdeps/unix/sysv/linux/wordsize-64/pread64.c
+   will suppress generating any separate code for pread64.c.  */
+#define __NR_pread __NR_pread64
+#define __NR_pwrite __NR_pwrite64
+#endif
+
+/* Provide a dummy argument that can be used to force register
+   alignment for register pairs if required by the syscall ABI.  */
+#ifdef __ASSUME_ALIGNED_REGISTER_PAIRS
+#define __ALIGNMENT_ARG 0,
+#define __ALIGNMENT_COUNT(a,b) b
+#else
+#define __ALIGNMENT_ARG
+#define __ALIGNMENT_COUNT(a,b) a
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/generic/umount.c b/ports/sysdeps/unix/sysv/linux/generic/umount.c
new file mode 100644
index 000000000..9b92ffe7b
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/umount.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+/* Since the generic Linux syscall ABI doesn't have an oldumount system call,
+   do what the kernel does down here.  */
+
+extern long int __umount2 (const char *name, int flags);
+
+long int
+__umount (const char *name)
+{
+  return __umount2 (name, 0);
+}
+
+weak_alias (__umount, umount);
diff --git a/ports/sysdeps/unix/sysv/linux/generic/unlink.c b/ports/sysdeps/unix/sysv/linux/generic/unlink.c
new file mode 100644
index 000000000..b115212d5
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/unlink.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+
+/* Remove the link named NAME.  */
+int
+__unlink (const char *name)
+{
+  return INLINE_SYSCALL (unlinkat, 3, AT_FDCWD, name, 0);
+}
+weak_alias (__unlink, unlink)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/ustat.c b/ports/sysdeps/unix/sysv/linux/generic/ustat.c
new file mode 100644
index 000000000..73e789216
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/ustat.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/ustat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* This deprecated syscall is no longer used (replaced with fstat).  */
+int
+ustat (dev_t dev, struct ustat *ubuf)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (ustat)
+#include <stub-tag.h>
diff --git a/ports/sysdeps/unix/sysv/linux/generic/utimes.c b/ports/sysdeps/unix/sysv/linux/generic/utimes.c
new file mode 100644
index 000000000..c366e6a75
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/utimes.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <utime.h>
+#include <fcntl.h>
+#include <sys/time.h>
+#include <sysdep.h>
+
+
+/* Change the access time of FILE to TVP[0] and
+   the modification time of FILE to TVP[1].  */
+int
+__utimes (const char *file, const struct timeval tvp[2])
+{
+  struct timespec ts[2];
+  struct timespec *tsp = NULL;
+
+  if (tvp)
+    {
+      TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]);
+      TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]);
+      tsp = &ts[0];
+    }
+
+  return INLINE_SYSCALL (utimensat, 4, AT_FDCWD, file, tsp, 0);
+}
+
+weak_alias (__utimes, utimes)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/Versions b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/Versions
new file mode 100644
index 000000000..cdc602201
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/Versions
@@ -0,0 +1,5 @@
+libc {
+  GLIBC_2.15 {
+    fallocate64;
+  }
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c
new file mode 100644
index 000000000..6619ff752
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c
@@ -0,0 +1,88 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <sysdep-cancel.h>	/* Must come before <fcntl.h>.  */
+#include <fcntl.h>
+#include <stdarg.h>
+
+#include <sys/syscall.h>
+#include <kernel-features.h>
+
+
+static int
+do_fcntl (int fd, int cmd, void *arg)
+{
+  if (cmd != F_GETOWN)
+    return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
+
+  INTERNAL_SYSCALL_DECL (err);
+  struct f_owner_ex fex;
+  int res = INTERNAL_SYSCALL (fcntl64, err, 3, fd, F_GETOWN_EX, &fex);
+  if (!INTERNAL_SYSCALL_ERROR_P (res, err))
+    return fex.type == F_OWNER_GID ? -fex.pid : fex.pid;
+
+  __set_errno (INTERNAL_SYSCALL_ERRNO (res, err));
+  return -1;
+}
+
+
+#ifndef NO_CANCELLATION
+int
+__fcntl_nocancel (int fd, int cmd, ...)
+{
+  va_list ap;
+  void *arg;
+
+  va_start (ap, cmd);
+  arg = va_arg (ap, void *);
+  va_end (ap);
+
+  return do_fcntl (fd, cmd, arg);
+}
+#endif
+
+
+int
+__libc_fcntl (int fd, int cmd, ...)
+{
+  va_list ap;
+  void *arg;
+
+  va_start (ap, cmd);
+  arg = va_arg (ap, void *);
+  va_end (ap);
+
+  if (SINGLE_THREAD_P || cmd != F_SETLKW)
+    return do_fcntl (fd, cmd, arg);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  int result = do_fcntl (fd, cmd, arg);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+libc_hidden_def (__libc_fcntl)
+
+weak_alias (__libc_fcntl, __fcntl)
+libc_hidden_weak (__fcntl)
+weak_alias (__libc_fcntl, fcntl)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c
new file mode 100644
index 000000000..aa866edde
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/statfs.h>
+#include <stddef.h>
+
+#include "overflow.h"
+
+/* Return information about the filesystem on which FD resides.  */
+int
+__fstatfs (int fd, struct statfs *buf)
+{
+  int rc = INLINE_SYSCALL (fstatfs64, 3, fd, sizeof (*buf), buf);
+  return rc ?: statfs_overflow (buf);
+}
+weak_alias (__fstatfs, fstatfs)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate.c
new file mode 100644
index 000000000..d962e4528
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/* Truncate the file FD refers to to LENGTH bytes.  */
+int
+__ftruncate (int fd, off_t length)
+{
+  return INLINE_SYSCALL (ftruncate64, __ALIGNMENT_COUNT (3, 4), fd,
+                         __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR (length >> 31, length));
+}
+weak_alias (__ftruncate, ftruncate)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate64.c
new file mode 100644
index 000000000..b0e52b9d5
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate64.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/* Truncate the file FD refers to to LENGTH bytes.  */
+int
+__ftruncate64 (int fd, off64_t length)
+{
+  unsigned int low = length & 0xffffffff;
+  unsigned int high = length >> 32;
+  return INLINE_SYSCALL (ftruncate64, __ALIGNMENT_COUNT (3, 4), fd,
+                         __ALIGNMENT_ARG __LONG_LONG_PAIR (high, low));
+}
+weak_alias (__ftruncate64, ftruncate64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c
new file mode 100644
index 000000000..7df3240f4
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "overflow.h"
+
+/* Get information about the file FD in BUF.  */
+int
+__fxstat (int vers, int fd, struct stat *buf)
+{
+  if (vers == _STAT_VER_KERNEL)
+    {
+      int rc = INLINE_SYSCALL (fstat64, 2, fd, buf);
+      return rc ?: stat_overflow (buf);
+    }
+
+  errno = EINVAL;
+  return -1;
+}
+
+hidden_def (__fxstat)
+weak_alias (__fxstat, _fxstat);
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c
new file mode 100644
index 000000000..2ab639a73
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include <kernel-features.h>
+
+#include "overflow.h"
+
+/* Get information about the file NAME in BUF.  */
+int
+__fxstatat (int vers, int fd, const char *file, struct stat *buf, int flag)
+{
+  if (vers == _STAT_VER_KERNEL)
+    {
+      int rc = INLINE_SYSCALL (fstatat64, 4, fd, file, buf, flag);
+      return rc ?: stat_overflow (buf);
+    }
+
+  errno = EINVAL;
+  return -1;
+}
+libc_hidden_def (__fxstatat)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/getdents.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/getdents.c
new file mode 100644
index 000000000..2f22b89a6
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/getdents.c
@@ -0,0 +1,116 @@
+/* Copyright (C) 1993, 1995-2003, 2004, 2006, 2007, 2011
+   This file is part of the GNU C Library.
+   Simplified from sysdeps/unix/sysv/linux/getdents.c.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <alloca.h>
+#include <assert.h>
+#include <errno.h>
+#include <dirent.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/types.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Pack the dirent64 struct down into 32-bit offset/inode fields, and
+   ensure that no overflow occurs.  */
+ssize_t
+__getdents (int fd, char *buf, size_t nbytes)
+{
+  union
+  {
+    struct dirent64 k;  /* Kernel structure.  */
+    struct dirent u;
+    char b[1];
+  } *kbuf = (void *) buf, *outp, *inp;
+  size_t kbytes = nbytes;
+  off64_t last_offset = -1;
+  ssize_t retval;
+
+  const size_t size_diff = (offsetof (struct dirent64, d_name)
+                            - offsetof (struct dirent, d_name));
+  if (nbytes <= sizeof (struct dirent))
+    {
+      kbytes = nbytes + offsetof (struct dirent64, d_name)
+        - offsetof (struct dirent, d_name);
+      kbuf = __alloca(kbytes);
+    }
+
+  retval = INLINE_SYSCALL (getdents64, 3, fd, kbuf, kbytes);
+  if (retval == -1)
+    return -1;
+
+  /* These two pointers might alias the same memory buffer.
+     Standard C requires that we always use the same type for them,
+     so we must use the union type.  */
+  inp = kbuf;
+  outp = (void *) buf;
+
+  while (&inp->b < &kbuf->b + retval)
+    {
+      const size_t alignment = __alignof__ (struct dirent);
+      /* Since inp->k.d_reclen is already aligned for the kernel
+         structure this may compute a value that is bigger
+         than necessary.  */
+      size_t old_reclen = inp->k.d_reclen;
+      size_t new_reclen = ((old_reclen - size_diff + alignment - 1)
+                           & ~(alignment - 1));
+
+      /* Copy the data out of the old structure into temporary space.
+         Then copy the name, which may overlap if BUF == KBUF.  */
+      const uint64_t d_ino = inp->k.d_ino;
+      const int64_t d_off = inp->k.d_off;
+      const uint8_t d_type = inp->k.d_type;
+
+      memmove (outp->u.d_name, inp->k.d_name,
+               old_reclen - offsetof (struct dirent64, d_name));
+
+      /* Now we have copied the data from INP and access only OUTP.  */
+
+      outp->u.d_ino = d_ino;
+      outp->u.d_off = d_off;
+      if ((sizeof (outp->u.d_ino) != sizeof (inp->k.d_ino)
+           && outp->u.d_ino != d_ino)
+          || (sizeof (outp->u.d_off) != sizeof (inp->k.d_off)
+              && outp->u.d_off != d_off))
+        {
+          /* Overflow.  If there was at least one entry before this one,
+             return them without error, otherwise signal overflow.  */
+          if (last_offset != -1)
+            {
+              __lseek64 (fd, last_offset, SEEK_SET);
+              return outp->b - buf;
+            }
+          __set_errno (EOVERFLOW);
+          return -1;
+        }
+
+      last_offset = d_off;
+      outp->u.d_reclen = new_reclen;
+      outp->u.d_type = d_type;
+
+      inp = (void *) inp + old_reclen;
+      outp = (void *) outp + new_reclen;
+    }
+
+  return outp->b - buf;
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/llseek.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/llseek.c
new file mode 100644
index 000000000..835595761
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/llseek.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/types.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Seek to OFFSET on FD, starting from WHENCE.  */
+extern loff_t __llseek (int fd, loff_t offset, int whence);
+
+loff_t
+__llseek (int fd, loff_t offset, int whence)
+{
+  loff_t retval;
+
+  return (loff_t) (INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 32),
+				   (off_t) (offset & 0xffffffff),
+				   &retval, whence) ?: retval);
+}
+weak_alias (__llseek, llseek)
+strong_alias (__llseek, __libc_lseek64)
+strong_alias (__llseek, __lseek64)
+weak_alias (__llseek, lseek64)
+
+/* llseek doesn't have a prototype.  Since the second parameter is a
+   64bit type, this results in wrong behaviour if no prototype is
+   provided.  */
+link_warning (llseek, "\
+the `llseek' function may be dangerous; use `lseek64' instead.")
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lseek.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lseek.c
new file mode 100644
index 000000000..ed5d18b1d
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lseek.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "overflow.h"
+
+off_t
+__lseek (int fd, off_t offset, int whence)
+{
+  loff_t res;
+  int rc = INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 31),
+                           (off_t) offset, &res, whence);
+  return rc ?: lseek_overflow (res);
+}
+libc_hidden_def (__lseek)
+weak_alias (__lseek, lseek)
+strong_alias (__lseek, __libc_lseek)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c
new file mode 100644
index 000000000..0fa91ecb0
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "overflow.h"
+
+/* Get information about the file NAME in BUF.  */
+int
+__lxstat (int vers, const char *name, struct stat *buf)
+{
+  if (vers == _STAT_VER_KERNEL)
+    {
+      int rc = INLINE_SYSCALL (fstatat64, 4, AT_FDCWD, name, buf,
+                               AT_SYMLINK_NOFOLLOW);
+      return rc ?: stat_overflow (buf);
+    }
+  errno = EINVAL;
+  return -1;
+}
+hidden_def (__lxstat)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c
new file mode 100644
index 000000000..3d65692d1
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Get information about the file NAME in BUF.  */
+int
+__lxstat64 (int vers, const char *name, struct stat64 *buf)
+{
+  if (vers == _STAT_VER_KERNEL)
+    return INLINE_SYSCALL (fstatat64, 4, AT_FDCWD, name, buf,
+                           AT_SYMLINK_NOFOLLOW);
+  errno = EINVAL;
+  return -1;
+}
+hidden_def (__lxstat64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/mmap.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/mmap.c
new file mode 100644
index 000000000..1c2d8ddf7
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/mmap.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <sysdep.h>
+
+#ifndef MMAP_PAGE_SHIFT
+#define MMAP_PAGE_SHIFT 12
+#endif
+
+__ptr_t
+__mmap (__ptr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
+{
+  if (offset & ((1 << MMAP_PAGE_SHIFT) - 1))
+    {
+      __set_errno (EINVAL);
+      return MAP_FAILED;
+    }
+  return (__ptr_t) INLINE_SYSCALL (mmap2, 6, addr, len, prot, flags, fd,
+                                   offset >> MMAP_PAGE_SHIFT);
+}
+
+weak_alias (__mmap, mmap)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h
new file mode 100644
index 000000000..2bfa7d9cd
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h
@@ -0,0 +1,61 @@
+/* Overflow tests for stat, statfs, and lseek functions.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sys/stat.h>
+#include <sys/statfs.h>
+
+/* Test for overflows of structures where we ask the kernel to fill them
+   in with standard 64-bit syscalls but return them through APIs that
+   only expose the low 32 bits of some fields.  */
+
+static inline off_t lseek_overflow (loff_t res)
+{
+  off_t retval = (off_t) res;
+  if (retval == res)
+    return retval;
+
+  __set_errno (EOVERFLOW);
+  return (off_t) -1;
+}
+
+static inline int stat_overflow (struct stat *buf)
+{
+  if (buf->__st_ino_pad == 0 && buf->__st_size_pad == 0 &&
+      buf->__st_blocks_pad == 0)
+    return 0;
+
+  __set_errno (EOVERFLOW);
+  return -1;
+}
+
+/* Note that f_files and f_ffree may validly be a sign-extended -1.  */
+static inline int statfs_overflow (struct statfs *buf)
+{
+  if (buf->__f_blocks_pad == 0 && buf->__f_bfree_pad == 0 &&
+      buf->__f_bavail_pad == 0 &&
+      (buf->__f_files_pad == 0 ||
+       (buf->f_files == -1U && buf->__f_files_pad == -1)) &&
+      (buf->__f_ffree_pad == 0 ||
+       (buf->f_ffree == -1U && buf->__f_ffree_pad == -1)))
+    return 0;
+
+  __set_errno (EOVERFLOW);
+  return -1;
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/posix_fadvise.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/posix_fadvise.c
new file mode 100644
index 000000000..735b67674
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/posix_fadvise.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sysdep.h>
+
+/* Advice the system about the expected behaviour of the application with
+   respect to the file associated with FD.  */
+
+int
+posix_fadvise (int fd, off_t offset, off_t len, int advise)
+{
+  INTERNAL_SYSCALL_DECL (err);
+  int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,
+                              __LONG_LONG_PAIR (offset >> 31, offset),
+                              __LONG_LONG_PAIR (len >> 31, len),
+                              advise);
+  if (INTERNAL_SYSCALL_ERROR_P (ret, err))
+    return INTERNAL_SYSCALL_ERRNO (ret, err);
+  return 0;
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pread.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pread.c
new file mode 100644
index 000000000..86362107c
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pread.c
@@ -0,0 +1,59 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_pread (int fd, void *buf, size_t count, off_t offset)
+{
+  assert (sizeof (offset) == 4);
+  return INLINE_SYSCALL (pread64, __ALIGNMENT_COUNT (5, 6), fd,
+                         buf, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR (offset >> 31, offset));
+}
+
+ssize_t
+__libc_pread (fd, buf, count, offset)
+     int fd;
+     void *buf;
+     size_t count;
+     off_t offset;
+{
+  if (SINGLE_THREAD_P)
+    return do_pread (fd, buf, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_pread (fd, buf, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+strong_alias (__libc_pread, __pread)
+weak_alias (__libc_pread, pread)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pread64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pread64.c
new file mode 100644
index 000000000..1e58c3188
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pread64.c
@@ -0,0 +1,59 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_pread64 (int fd, void *buf, size_t count, off64_t offset)
+{
+  return INLINE_SYSCALL (pread64, __ALIGNMENT_COUNT (5, 6), fd,
+                         buf, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR ((off_t) (offset >> 32),
+                                           (off_t) (offset & 0xffffffff)));
+}
+
+
+ssize_t
+__libc_pread64 (fd, buf, count, offset)
+     int fd;
+     void *buf;
+     size_t count;
+     off64_t offset;
+{
+  if (SINGLE_THREAD_P)
+    return do_pread64 (fd, buf, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_pread64 (fd, buf, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+
+weak_alias (__libc_pread64, __pread64) weak_alias (__libc_pread64, pread64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c
new file mode 100644
index 000000000..e1825cebb
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+#include <sys/uio.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_preadv (int fd, const struct iovec *vector, int count, off_t offset)
+{
+  assert (sizeof (offset) == 4);
+  return INLINE_SYSCALL (preadv, __ALIGNMENT_COUNT (5, 6), fd,
+                         vector, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR (offset >> 31, offset));
+}
+
+ssize_t
+__libc_preadv (int fd, const struct iovec *vector, int count, off_t offset)
+{
+  if (SINGLE_THREAD_P)
+    return do_preadv (fd, vector, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_preadv (fd, vector, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+strong_alias (__libc_preadv, __preadv)
+weak_alias (__libc_preadv, preadv)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c
new file mode 100644
index 000000000..ed6eeed52
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/preadv64.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+#include <sys/uio.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
+{
+  return INLINE_SYSCALL (preadv, __ALIGNMENT_COUNT (5, 6), fd,
+                         vector, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR ((off_t) (offset >> 32),
+                                           (off_t) (offset & 0xffffffff)));
+}
+
+
+ssize_t
+__libc_preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
+{
+  if (SINGLE_THREAD_P)
+    return do_preadv64 (fd, vector, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_preadv64 (fd, vector, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+
+strong_alias (__libc_preadv64, __preadv64)
+weak_alias (__libc_preadv64, preadv64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite.c
new file mode 100644
index 000000000..84d5d2f6a
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite.c
@@ -0,0 +1,60 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_pwrite (int fd, const void *buf, size_t count, off_t offset)
+{
+  assert (sizeof (offset) == 4);
+  return INLINE_SYSCALL (pwrite64, __ALIGNMENT_COUNT (5, 6), fd,
+                         buf, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR (offset >> 31, offset));
+}
+
+
+ssize_t
+__libc_pwrite (fd, buf, count, offset)
+     int fd;
+     const void *buf;
+     size_t count;
+     off_t offset;
+{
+  if (SINGLE_THREAD_P)
+    return do_pwrite (fd, buf, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_pwrite (fd, buf, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+strong_alias (__libc_pwrite, __pwrite)
+weak_alias (__libc_pwrite, pwrite)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c
new file mode 100644
index 000000000..f1629fa05
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c
@@ -0,0 +1,60 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_pwrite64 (int fd, const void *buf, size_t count, off64_t offset)
+{
+  return INLINE_SYSCALL (pwrite64, __ALIGNMENT_COUNT (5, 6), fd,
+                         buf, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR ((off_t) (offset >> 32),
+                                           (off_t) (offset & 0xffffffff)));
+}
+
+
+ssize_t
+__libc_pwrite64 (fd, buf, count, offset)
+     int fd;
+     const void *buf;
+     size_t count;
+     off64_t offset;
+{
+  if (SINGLE_THREAD_P)
+    return do_pwrite64 (fd, buf, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_pwrite64 (fd, buf, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+
+weak_alias (__libc_pwrite64, __pwrite64)
+libc_hidden_weak (__pwrite64) weak_alias (__libc_pwrite64, pwrite64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev.c
new file mode 100644
index 000000000..68cdf942f
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+#include <sys/uio.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_pwritev (int fd, const struct iovec *vector, int count, off_t offset)
+{
+  assert (sizeof (offset) == 4);
+  return INLINE_SYSCALL (pwritev, __ALIGNMENT_COUNT (5, 6), fd,
+                         vector, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR (offset >> 31, offset));
+}
+
+
+ssize_t
+__libc_pwritev (int fd, const struct iovec *vector, int count, off_t offset)
+{
+  if (SINGLE_THREAD_P)
+    return do_pwritev (fd, vector, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_pwritev (fd, vector, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+strong_alias (__libc_pwritev, __pwritev)
+weak_alias (__libc_pwritev, pwritev)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev64.c
new file mode 100644
index 000000000..0e25d0ceb
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/pwritev64.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <endian.h>
+#include <unistd.h>
+#include <sys/uio.h>
+
+#include <sysdep-cancel.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+static ssize_t
+do_pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
+{
+  return INLINE_SYSCALL (pwritev, __ALIGNMENT_COUNT (5, 6), fd,
+                         vector, count, __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR ((off_t) (offset >> 32),
+                                           (off_t) (offset & 0xffffffff)));
+}
+
+
+ssize_t
+__libc_pwritev64 (int fd, const struct iovec *vector, int count,
+                  off64_t offset)
+{
+  if (SINGLE_THREAD_P)
+    return do_pwritev64 (fd, vector, count, offset);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
+  ssize_t result = do_pwritev64 (fd, vector, count, offset);
+
+  LIBC_CANCEL_RESET (oldtype);
+
+  return result;
+}
+
+strong_alias (__libc_pwritev64, pwritev64)
+weak_alias (__libc_pwritev64, __pwritev64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c
new file mode 100644
index 000000000..120fe2f09
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sys/sendfile.h>
+#include <errno.h>
+
+/* Send COUNT bytes from file associated with IN_FD starting at OFFSET to
+   descriptor OUT_FD.  */
+ssize_t
+sendfile (int out_fd, int in_fd, off_t *offset, size_t count)
+{
+  __off64_t off64;
+  int rc;
+
+  if (offset != NULL)
+    {
+      if (*offset < 0 || (off_t) (*offset + count) < 0)
+        {
+          __set_errno (EINVAL);
+          return -1;
+        }
+      off64 = *offset;
+    }
+
+  rc = INLINE_SYSCALL (sendfile64, 4, out_fd, in_fd,
+                       offset ? &off64 : NULL, count);
+  if (offset)
+    *offset = off64;
+  return rc;
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c
new file mode 100644
index 000000000..a5156b882
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/statfs.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/statfs.h>
+#include <stddef.h>
+
+#include "overflow.h"
+
+/* Return information about the filesystem on which FILE resides.  */
+int
+__statfs (const char *file, struct statfs *buf)
+{
+  int rc = INLINE_SYSCALL (statfs64, 3, file, sizeof (*buf), buf);
+  return rc ?: statfs_overflow (buf);
+}
+libc_hidden_def (__statfs)
+weak_alias (__statfs, statfs)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/syscalls.list b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/syscalls.list
new file mode 100644
index 000000000..d1ae0290f
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/syscalls.list
@@ -0,0 +1,5 @@
+# File name	Caller	Syscall name	# args	Strong name	Weak names
+
+# rlimit APIs
+getrlimit	-	getrlimit	i:ip	__getrlimit	getrlimit	
+setrlimit	-	setrlimit	i:ip	__setrlimit	setrlimit	
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/truncate.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/truncate.c
new file mode 100644
index 000000000..0692d05ca
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/truncate.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/* Truncate PATH to LENGTH bytes.  */
+int
+__truncate (const char *path, off_t length)
+{
+  return INLINE_SYSCALL (truncate64, __ALIGNMENT_COUNT (3, 4), path,
+                         __ALIGNMENT_ARG
+                         __LONG_LONG_PAIR (length >> 31, length));
+}
+weak_alias (__truncate, truncate)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/truncate64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/truncate64.c
new file mode 100644
index 000000000..b7bb0d962
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/truncate64.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/* Truncate the file PATH to LENGTH bytes.  */
+int
+truncate64 (const char *path, off64_t length)
+{
+  unsigned int low = length & 0xffffffff;
+  unsigned int high = length >> 32;
+  return INLINE_SYSCALL (truncate64, __ALIGNMENT_COUNT (3, 4), path,
+                         __ALIGNMENT_ARG __LONG_LONG_PAIR (high, low));
+}
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c
new file mode 100644
index 000000000..721afbe95
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "overflow.h"
+
+/* Get information about the file NAME in BUF.  */
+int
+__xstat (int vers, const char *name, struct stat *buf)
+{
+  if (vers == _STAT_VER_KERNEL)
+    {
+      int rc = INLINE_SYSCALL (fstatat64, 4, AT_FDCWD, name, buf, 0);
+      return rc ?: stat_overflow (buf);
+    }
+
+  errno = EINVAL;
+  return -1;
+}
+hidden_def (__xstat)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c
new file mode 100644
index 000000000..5358b291b
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Get information about the file NAME in BUF.  */
+int
+__xstat64 (int vers, const char *name, struct stat64 *buf)
+{
+  if (vers == _STAT_VER_KERNEL)
+    return INLINE_SYSCALL (fstatat64, 4, AT_FDCWD, name, buf, 0);
+
+  errno = EINVAL;
+  return -1;
+}
+hidden_def (__xstat64)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/xmknod.c b/ports/sysdeps/unix/sysv/linux/generic/xmknod.c
new file mode 100644
index 000000000..6f3f535d9
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/xmknod.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Create a device file named PATH, with permission and special bits MODE
+   and device number DEV (which can be constructed from major and minor
+   device numbers with the `makedev' macro above).  */
+int
+__xmknod (int vers, const char *path, mode_t mode, dev_t *dev)
+{
+  unsigned long long int k_dev;
+
+  if (vers != _MKNOD_VER)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  /* We must convert the value to dev_t type used by the kernel.  */
+  k_dev = (*dev) & ((1ULL << 32) - 1);
+  if (k_dev != *dev)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return INLINE_SYSCALL (mknodat, 4, AT_FDCWD, path, mode,
+                         (unsigned int) k_dev);
+}
+weak_alias (__xmknod, _xmknod)
+libc_hidden_def (__xmknod)
diff --git a/ports/sysdeps/unix/sysv/linux/generic/xstat.c b/ports/sysdeps/unix/sysv/linux/generic/xstat.c
new file mode 100644
index 000000000..4fd963a1d
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/generic/xstat.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+/* Ignore prototype to avoid error if we alias __xstat and __xstat64. */
+#define __xstat64 __xstat64_disable
+
+#include <errno.h>
+#include <stddef.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Get information about the file NAME in BUF.  */
+int
+__xstat (int vers, const char *name, struct stat *buf)
+{
+  if (vers == _STAT_VER_KERNEL)
+    return INLINE_SYSCALL (newfstatat, 4, AT_FDCWD, name, buf, 0);
+
+  errno = EINVAL;
+  return -1;
+}
+
+hidden_def (__xstat)
+weak_alias (__xstat, _xstat);
+#ifdef XSTAT_IS_XSTAT64
+#undef __xstat64
+strong_alias (__xstat, __xstat64);
+hidden_ver (__xstat, __xstat64)
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/syscall.S b/ports/sysdeps/unix/sysv/linux/m68k/syscall.S
index 4f2c747c2..d1f5c83ca 100644
--- a/ports/sysdeps/unix/sysv/linux/m68k/syscall.S
+++ b/ports/sysdeps/unix/sysv/linux/m68k/syscall.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1998, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,9 +24,9 @@
 	.text
 ENTRY (syscall)
 	move.l 4(%sp), %d0	/* Load syscall number.  */
-	_DOARGS_5 (24)		/* Frob arguments.  */
+	_DOARGS_6 (28)		/* Frob arguments.  */
 	trap &0			/* Do the system call.  */
-	UNDOARGS_5		/* Unfrob arguments.  */
+	UNDOARGS_6		/* Unfrob arguments.  */
 	cmp.l &-4095, %d0	/* Check %d0 for error.  */
 	jcc SYSCALL_ERROR_LABEL	/* Jump to error handler if negative.  */
 	rts			/* Return to caller.  */
diff --git a/ports/sysdeps/unix/sysv/linux/mips/Makefile b/ports/sysdeps/unix/sysv/linux/mips/Makefile
index 162f1b93d..41e92581a 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/Makefile
+++ b/ports/sysdeps/unix/sysv/linux/mips/Makefile
@@ -7,124 +7,14 @@ sysdep_routines += cachectl cacheflush sysmips _test_and_set
 
 sysdep_headers += sys/cachectl.h sys/sysmips.h sys/tas.h
 
-no_syscall_list_h = 1
-
-# A callable macro that expands to a shell command.  Preprocess file $(1)
-# using ABI option $(2) and see which macros it defines.  Print FOO for each
-# macro of the form __NR$(3)_FOO, filtering out ABI-specific __NR macros
-# that have a prefix other than $(3).
-mips_list_syscalls =	$(filter-out -m%,$(CC)) -E -x c $(+includes) \
-			    $(sysincludes) -D_LIBC -dM -mabi=$(2) $(1) | \
-			sed -n 's@^\#define __NR$(3)_\([^ ]*\) .*@\1@p' | \
-			sed -e '/^[ON]32_/d' -e '/^N64_/d' -e '/^64_/d' | \
-			LC_ALL=C sort
-
-# Generate a list of SYS_* macros from the linux __NR macros.
-#
-# Before version 2.6, linux had separate 32-bit and 64-bit MIPS ports,
-# each with its own set of headers.  The ports were merged for 2.6 and
-# this merged port defines the syscalls in a slightly different way.
-# There are therefore three sets of headers that we need to consider:
-#
-#    (1) Headers from the separate 32-bit MIPS port.  They just define
-#	 a single list of __NR macros.
-#
-#    (2) Headers from the separate 64-bit MIPS port.  They unconditionally
-#	 define syscalls for all three ABIs, with o32 syscalls prefixed
-#	 by __NR_O32, n32 syscalls prefixed by __NR_N32 and n64 syscalls
-#	 prefixed by plain __NR.
-#
-#    (3) Headers from the combined port.  They use the _MIPS_SIM macro to
-#	 define the right set of syscalls for the current ABI.  The syscalls
-#	 themselves have no special ABI prefix, but the headers also define:
-#
-#	    __NR_O32_Linux{,_syscalls}
-#	    __NR_N32_Linux{,_syscalls}
-#	    __NR_64_Linux{,_syscalls}
-#
-# In case (1) we just want a simple list of SYS_* macros.  In cases (2)
-# and (3) we want a file that will work for all three ABIs, regardless
-# of which ABI we are currently using.  We also want the file to work
-# if the user later moves from (2) to (3).  Thus the file we create
-# for (2) and (3) has the form:
-#
-#    #if _MIPS_SIM == _ABIN32
-#    # ifdef __NR_N32_open
-#    #  define SYS_n32syscall1 __NR_N32_n32syscall1
-#    #  ...
-#    # else
-#    #  define SYS_n32syscall1 __NR_n32syscall1
-#    #  ...
-#    # endif
-#    #elif _MIPS_SIM == _ABI64
-#    # define SYS_n64syscall1 __NR_n64syscall1
-#    # ...
-#    #else
-#    # ifdef __NR_O32_open
-#    #  define SYS_o32syscall1 __NR_O32_o32syscall1
-#    #  ...
-#    # else
-#    #  define SYS_o32syscall1 __NR_o32syscall1
-#    #  ...
-#    # endif
-#    #endif
-#
-# Here, __NR_N32_open and __NR_O32_open are used to detect case (2)
-# over case (3).  The n64 SYS_* macros can always use the normal
-# ABI-less names.
-$(objpfx)syscall-%.h $(objpfx)syscall-%.d: ../sysdeps/unix/sysv/linux/mips/sys/syscall.h
-	$(make-target-directory)
-	$(CC) -E -x c $(+includes) $(sysincludes) -D_LIBC $< -MD -MP \
-	      -MF $(@:.h=.d)-t -MT '$(@:.d=.h) $(@:.h=.d)' > /dev/null
-	{ \
-	 echo '/* Generated at libc build time from kernel syscall list.  */';\
-	 echo ''; \
-	 echo '#ifndef _SYSCALL_H'; \
-	 echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
-	 echo '#endif'; \
-	 echo ''; \
-	 echo '#include <sgidefs.h>'; \
-	 rm -f $(@:.d=.h).new32 $(@:.d=.h).newn32 $(@:.d=.h).new64; \
-	 $(call mips_list_syscalls,$<,n32,_N32) > $(@:.d=.h).newn32; \
-	 if test -s $(@:.d=.h).newn32; then \
-	   if grep open $(@:.d=.h).newn32 > /dev/null; then \
-	     $(call mips_list_syscalls,$<,32,_O32) > $(@:.d=.h).new32; \
-	     $(call mips_list_syscalls,$<,64,) > $(@:.d=.h).new64; \
-	   else \
-	     $(call mips_list_syscalls,$<,32,) > $(@:.d=.h).new32; \
-	     $(call mips_list_syscalls,$<,n32,) > $(@:.d=.h).newn32; \
-	     $(call mips_list_syscalls,$<,64,) > $(@:.d=.h).new64; \
-	   fi; \
-	   echo '#if _MIPS_SIM == _ABIN32'; \
-	   echo '# ifdef __NR_N32_open'; \
-	   sed 's@\(.*\)@#  define SYS_\1 __NR_N32_\1@' < $(@:.d=.h).newn32; \
-	   echo '# else'; \
-	   sed 's@\(.*\)@#  define SYS_\1 __NR_\1@' < $(@:.d=.h).newn32; \
-	   echo '# endif'; \
-	   echo '#elif _MIPS_SIM == _ABI64'; \
-	   sed 's@\(.*\)@# define SYS_\1 __NR_\1@' < $(@:.d=.h).new64; \
-	   echo '#else'; \
-	   echo '# ifdef __NR_O32_open'; \
-	   sed 's@\(.*\)@#  define SYS_\1 __NR_O32_\1@' < $(@:.d=.h).new32; \
-	   echo '# else'; \
-	   sed 's@\(.*\)@#  define SYS_\1 __NR_\1@' < $(@:.d=.h).new32; \
-	   echo '# endif'; \
-	   echo '#endif'; \
-	 else \
-	   $(CC) -E -x c $(+includes) $(sysincludes) -D_LIBC -dM $< | \
-	   sed -n 's@^\#define __NR_\([^ ]*\) .*@\#define SYS_\1 __NR_\1@p' | \
-	   LC_ALL=C sort; \
-	 fi; \
-	 rm -f $(@:.d=.h).new32 $(@:.d=.h).newn32 $(@:.d=.h).new64; \
-	} > $(@:.d=.h).new
-	mv -f $(@:.d=.h).new $(@:.d=.h)
-ifneq (,$(objpfx))
-	sed $(sed-remove-objpfx) $(@:.h=.d)-t > $(@:.h=.d)-t2
-	rm -f $(@:.h=.d)-t
-	mv -f $(@:.h=.d)-t2 $(@:.h=.d)
-else
-	mv -f $(@:.h=.d)-t $(@:.h=.d)
-endif
+syscall-list-variants := o32 n32 n64
+syscall-list-includes := sgidefs.h
+syscall-list-o32-options := -mabi=32
+syscall-list-o32-condition := _MIPS_SIM == _MIPS_SIM_ABI32
+syscall-list-n32-options := -mabi=n32
+syscall-list-n32-condition := _MIPS_SIM == _MIPS_SIM_ABIN32
+syscall-list-n64-options := -mabi=64
+syscall-list-n64-condition := _MIPS_SIM == _MIPS_SIM_ABI64
 endif
 
 ifeq ($(subdir),elf)
diff --git a/ports/sysdeps/unix/sysv/linux/mips/configure b/ports/sysdeps/unix/sysv/linux/mips/configure
index 129fb8c22..d8f130448 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/configure
+++ b/ports/sysdeps/unix/sysv/linux/mips/configure
@@ -1,82 +1,6 @@
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/mips.
 
-case $machine in
-mips*64*)
-  rm -f asm-unistd.h
-  asm_unistd_h=$sysheaders/asm/unistd.h
-  if test ! -f $asm_unistd_h; then
-    # Try to find asm/unistd.h in compiler header search path.
-    try_asm_unistd_h=`echo '#include <asm/unistd.h>' | $CPP - |
-			sed -n '/^# 1 "\(\/[^"]*\)".*/{s,,\1,p;q;}'`
-    if test -n "$try_asm_unistd_h" &&
-       test -f "$try_asm_unistd_h"; then
-      asm_unistd_h=$try_asm_unistd_h
-    fi
-  fi
-  if test ! -f "$asm_unistd_h"; then
-    { $as_echo "$as_me:$LINENO: WARNING: *** asm/unistd.h not found, it will not be pre-processed" >&5
-$as_echo "$as_me: WARNING: *** asm/unistd.h not found, it will not be pre-processed" >&2;}
-    echo '#include <asm/unistd.h>' > asm-unistd.h
-  elif grep __NR_N32_open "$asm_unistd_h" > /dev/null; then
-    # The point of this preprocessing is to turn __NR_<syscall> into
-    # __NR_N64_<syscall>, as well as to define __NR_<syscall> to
-    # __NR_<abi>_<syscall>, if __NR_<abi>_<syscall> is defined
-    # and <abi> is the compiler-enabled ABI.
-    cat "$asm_unistd_h" |
-    sed -e 's,__NR_,__NR_N64_,g' \
-        -e 's,__NR_N64_##,__NR_##,g' \
-	-e 's,__NR_N64_O32_,__NR_O32_,g' \
-	-e 's,__NR_N64_N32_,__NR_N32_,g' \
-	-e 's,__NR_N64_N64_,__NR_N64_,g' \
-    | awk > asm-unistd.h '
-BEGIN { print "#include <sgidefs.h>"; }
-/^#define __NR.*unused/ { print; next; }
-/^#define __NR_N64__exit __NR_N64_exit/ {
-	print "#define __NR__exit __NR_exit";
-	print "#define __NR_O32__exit __NR_O32_exit";
-	print "#define __NR_N32__exit __NR_N32_exit";
-	print; next;
-}
-/^#define __NR_O32_/ {
-	name = $2;
-	sub (/_O32_/, "_", name);
-	print;
-	print "#if _MIPS_SIM == _ABIO32";
-	print "# define " name " " $2;
-	print "#endif";
-	next;
-}
-/^#define __NR_N32_/ {
-	name = $2;
-	sub (/_N32_/, "_", name);
-	print;
-	print "#if _MIPS_SIM == _ABIN32";
-	print "# define " name " " $2;
-	print "#endif";
-	next;
-}
-/^#define __NR_N64_/ {
-	name = $2;
-	sub (/_N64_/, "_", name);
-	print;
-	print "#if _MIPS_SIM == _ABI64";
-	print "# define " name " " $2;
-	print "#endif";
-	next;
-}
-{
-	print;
-}'
-  else
-    echo '#include <asm/unistd.h>' > asm-unistd.h
-  fi ;;
-mips*)
-  rm -f asm-unistd.h
-  echo '#include <asm/unistd.h>' > asm-unistd.h
-  ;;
-esac
-
 case "$prefix" in
 /usr | /usr/)
   # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
diff --git a/ports/sysdeps/unix/sysv/linux/mips/configure.in b/ports/sysdeps/unix/sysv/linux/mips/configure.in
index c2e66ede8..487138210 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/mips/configure.in
@@ -2,81 +2,6 @@ sinclude(./aclocal.m4)dnl Autoconf lossage
 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
 # Local configure fragment for sysdeps/unix/sysv/linux/mips.
 
-case $machine in
-mips*64*)
-  rm -f asm-unistd.h
-  asm_unistd_h=$sysheaders/asm/unistd.h
-  if test ! -f $asm_unistd_h; then
-    # Try to find asm/unistd.h in compiler header search path.
-    try_asm_unistd_h=`echo '#include <asm/unistd.h>' | $CPP - |
-			sed -n '/^# 1 "\(\/[^"]*\)".*/{s,,\1,p;q;}'`
-    if test -n "$try_asm_unistd_h" &&
-       test -f "$try_asm_unistd_h"; then
-      asm_unistd_h=$try_asm_unistd_h
-    fi
-  fi
-  if test ! -f "$asm_unistd_h"; then
-    AC_MSG_WARN([*** asm/unistd.h not found, it will not be pre-processed])
-    echo '#include <asm/unistd.h>' > asm-unistd.h
-  elif grep __NR_N32_open "$asm_unistd_h" > /dev/null; then
-    # The point of this preprocessing is to turn __NR_<syscall> into
-    # __NR_N64_<syscall>, as well as to define __NR_<syscall> to
-    # __NR_<abi>_<syscall>, if __NR_<abi>_<syscall> is defined
-    # and <abi> is the compiler-enabled ABI.
-    cat "$asm_unistd_h" |
-    sed -e 's,__NR_,__NR_N64_,g' \
-        -e 's,__NR_N64_##,__NR_##,g' \
-	-e 's,__NR_N64_O32_,__NR_O32_,g' \
-	-e 's,__NR_N64_N32_,__NR_N32_,g' \
-	-e 's,__NR_N64_N64_,__NR_N64_,g' \
-    | awk > asm-unistd.h '
-BEGIN { print "#include <sgidefs.h>"; }
-/^#define __NR.*unused/ { print; next; }
-/^#define __NR_N64__exit __NR_N64_exit/ {
-	print "#define __NR__exit __NR_exit";
-	print "#define __NR_O32__exit __NR_O32_exit";
-	print "#define __NR_N32__exit __NR_N32_exit";
-	print; next;
-}
-/^#define __NR_O32_/ {
-	name = $2;
-	sub (/_O32_/, "_", name);
-	print;
-	print "#if _MIPS_SIM == _ABIO32";
-	print "# define " name " " $2;
-	print "#endif";
-	next;
-}
-/^#define __NR_N32_/ {
-	name = $2;
-	sub (/_N32_/, "_", name);
-	print;
-	print "#if _MIPS_SIM == _ABIN32";
-	print "# define " name " " $2;
-	print "#endif";
-	next;
-}
-/^#define __NR_N64_/ {
-	name = $2;
-	sub (/_N64_/, "_", name);
-	print;
-	print "#if _MIPS_SIM == _ABI64";
-	print "# define " name " " $2;
-	print "#endif";
-	next;
-}
-{
-	print;
-}'
-  else
-    echo '#include <asm/unistd.h>' > asm-unistd.h
-  fi ;;
-mips*)
-  rm -f asm-unistd.h
-  echo '#include <asm/unistd.h>' > asm-unistd.h
-  ;;
-esac
-
 case "$prefix" in
 /usr | /usr/)
   # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
diff --git a/ports/sysdeps/unix/sysv/linux/mips/sys/epoll.h b/ports/sysdeps/unix/sysv/linux/mips/sys/epoll.h
index 6d2ec8edf..51a657a5b 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/sys/epoll.h
+++ b/ports/sysdeps/unix/sysv/linux/mips/sys/epoll.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2006, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2006, 2007, 2008, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -65,9 +65,9 @@ enum EPOLL_EVENTS
 #define EPOLLHUP EPOLLHUP
     EPOLLRDHUP = 0x2000,
 #define EPOLLRDHUP EPOLLRDHUP
-    EPOLLONESHOT = (1 << 30),
+    EPOLLONESHOT = 1u << 30,
 #define EPOLLONESHOT EPOLLONESHOT
-    EPOLLET = (1 << 31)
+    EPOLLET = 1u << 31
 #define EPOLLET EPOLLET
   };
 
diff --git a/ports/sysdeps/unix/sysv/linux/tile/Makefile b/ports/sysdeps/unix/sysv/linux/tile/Makefile
new file mode 100644
index 000000000..0cbfdd0e3
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/Makefile
@@ -0,0 +1,15 @@
+ifeq ($(subdir),misc)
+
+# <sys/reg.h> provides something like x86 compatibility.
+# New code should probably use <arch/abi.h> instead.
+sysdep_headers += sys/reg.h
+
+# MIPS-style cacheflush routine
+sysdep_headers += sys/cachectl.h
+sysdep_routines += cacheflush
+
+# Control dataplane properties of current thread.
+sysdep_headers += sys/dataplane.h
+sysdep_routines += set_dataplane
+
+endif
diff --git a/ports/sysdeps/unix/sysv/linux/tile/Versions b/ports/sysdeps/unix/sysv/linux/tile/Versions
new file mode 100644
index 000000000..1df7518c7
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/Versions
@@ -0,0 +1,11 @@
+libc {
+  GLIBC_2.12 {
+    _flush_cache;
+    cacheflush;
+    fallocate64;
+    set_dataplane;
+  }
+  GLIBC_PRIVATE {
+    __syscall_error;
+  }
+}
diff --git a/ports/sysdeps/unix/sysv/linux/tile/bits/environments.h b/ports/sysdeps/unix/sysv/linux/tile/bits/environments.h
new file mode 100644
index 000000000..f1835179f
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/bits/environments.h
@@ -0,0 +1,101 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _UNISTD_H
+# error "Never include this file directly.  Use <unistd.h> instead"
+#endif
+
+#include <bits/wordsize.h>
+
+/* This header should define the following symbols under the described
+   situations.  A value `1' means that the model is always supported,
+   `-1' means it is never supported.  Undefined means it cannot be
+   statically decided.
+
+   _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
+
+   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
+
+   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+   used in previous versions of the Unix standard and are available
+   only for compatibility.
+*/
+
+#if __WORDSIZE == 64
+
+/* Environments with 32-bit wide pointers are optionally provided.
+   Therefore following macros aren't defined:
+   # undef _POSIX_V7_ILP32_OFF32
+   # undef _POSIX_V7_ILP32_OFFBIG
+   # undef _POSIX_V6_ILP32_OFF32
+   # undef _POSIX_V6_ILP32_OFFBIG
+   # undef _XBS5_ILP32_OFF32
+   # undef _XBS5_ILP32_OFFBIG
+   and users need to check at runtime.  */
+
+/* We also have no use (for now) for an environment with bigger pointers
+   and offsets.  */
+# define _POSIX_V7_LPBIG_OFFBIG	-1
+# define _POSIX_V6_LPBIG_OFFBIG	-1
+# define _XBS5_LPBIG_OFFBIG	-1
+
+/* By default we have 64-bit wide `long int', pointers and `off_t'.  */
+# define _POSIX_V7_LP64_OFF64	1
+# define _POSIX_V6_LP64_OFF64	1
+# define _XBS5_LP64_OFF64	1
+
+#else /* __WORDSIZE == 32 */
+
+/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
+   and all platforms support LFS.  */
+# define _POSIX_V7_ILP32_OFF32	1
+# define _POSIX_V7_ILP32_OFFBIG	1
+# define _POSIX_V6_ILP32_OFF32	1
+# define _POSIX_V6_ILP32_OFFBIG	1
+# define _XBS5_ILP32_OFF32	1
+# define _XBS5_ILP32_OFFBIG	1
+
+/* We optionally provide an environment with the above size but an 64-bit
+   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
+
+/* Environments with 64-bit wide pointers can be provided,
+   so these macros aren't defined:
+   # undef _POSIX_V7_LP64_OFF64
+   # undef _POSIX_V7_LPBIG_OFFBIG
+   # undef _POSIX_V6_LP64_OFF64
+   # undef _POSIX_V6_LPBIG_OFFBIG
+   # undef _XBS5_LP64_OFF64
+   # undef _XBS5_LPBIG_OFFBIG
+   and sysconf tests for it at runtime.  */
+
+#endif /* __WORDSIZE == 32 */
+
+#ifdef __tilegx__
+/* Only TILE-Gx has the ability to choose 32- or 64-bit. */
+#define __ILP32_OFF32_CFLAGS	"-m32"
+#define __ILP32_OFFBIG_CFLAGS	"-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+#define __ILP32_OFF32_LDFLAGS	"-m32"
+#define __ILP32_OFFBIG_LDFLAGS	"-m32"
+#define __LP64_OFF64_CFLAGS	"-m64"
+#define __LP64_OFF64_LDFLAGS	"-m64"
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/tile/bits/local_lim.h b/ports/sysdeps/unix/sysv/linux/tile/bits/local_lim.h
new file mode 100644
index 000000000..6eb45c998
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/bits/local_lim.h
@@ -0,0 +1,101 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+/* The kernel header pollutes the namespace with the NR_OPEN symbol
+   and defines LINK_MAX although filesystems have different maxima.  A
+   similar thing is true for OPEN_MAX: the limit can be changed at
+   runtime and therefore the macro must not be defined.  Remove this
+   after including the header if necessary.  */
+#ifndef NR_OPEN
+# define __undef_NR_OPEN
+#endif
+#ifndef LINK_MAX
+# define __undef_LINK_MAX
+#endif
+#ifndef OPEN_MAX
+# define __undef_OPEN_MAX
+#endif
+#ifndef ARG_MAX
+# define __undef_ARG_MAX
+#endif
+
+/* The kernel sources contain a file with all the needed information.  */
+#include <linux/limits.h>
+
+/* Have to remove NR_OPEN?  */
+#ifdef __undef_NR_OPEN
+# undef NR_OPEN
+# undef __undef_NR_OPEN
+#endif
+/* Have to remove LINK_MAX?  */
+#ifdef __undef_LINK_MAX
+# undef LINK_MAX
+# undef __undef_LINK_MAX
+#endif
+/* Have to remove OPEN_MAX?  */
+#ifdef __undef_OPEN_MAX
+# undef OPEN_MAX
+# undef __undef_OPEN_MAX
+#endif
+/* Have to remove ARG_MAX?  */
+#ifdef __undef_ARG_MAX
+# undef ARG_MAX
+# undef __undef_ARG_MAX
+#endif
+
+/* The number of data keys per process.  */
+#define _POSIX_THREAD_KEYS_MAX	128
+/* This is the value this implementation supports.  */
+#define PTHREAD_KEYS_MAX	1024
+
+/* Controlling the iterations of destructors for thread-specific data.  */
+#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS	4
+/* Number of iterations this implementation does.  */
+#define PTHREAD_DESTRUCTOR_ITERATIONS	_POSIX_THREAD_DESTRUCTOR_ITERATIONS
+
+/* The number of threads per process.  */
+#define _POSIX_THREAD_THREADS_MAX	64
+/* We have no predefined limit on the number of threads.  */
+#undef PTHREAD_THREADS_MAX
+
+/* Maximum amount by which a process can descrease its asynchronous I/O
+   priority level.  */
+#define AIO_PRIO_DELTA_MAX	20
+
+/* Minimum size for a thread.  At least two pages for systems with 64k
+   pages.  */
+#define PTHREAD_STACK_MIN	131072
+
+/* Maximum number of timer expiration overruns.  */
+#define DELAYTIMER_MAX	2147483647
+
+/* Maximum tty name length.  */
+#define TTY_NAME_MAX		32
+
+/* Maximum login name length.  This is arbitrary.  */
+#define LOGIN_NAME_MAX		256
+
+/* Maximum host name length.  */
+#define HOST_NAME_MAX		64
+
+/* Maximum message queue priority level.  */
+#define MQ_PRIO_MAX		32768
+
+/* Maximum value the semaphore can have.  */
+#define SEM_VALUE_MAX   (2147483647)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/bits/mman.h b/ports/sysdeps/unix/sysv/linux/tile/bits/mman.h
new file mode 100644
index 000000000..35863af45
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/bits/mman.h
@@ -0,0 +1,110 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+   But the kernel header is not namespace clean.  */
+
+
+/* Protections are chosen from these bits, OR'd together.  The
+   implementation does not necessarily support PROT_EXEC or PROT_WRITE
+   without PROT_READ.  The only guarantees are that no writing will be
+   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define PROT_READ	0x1		/* Page can be read.  */
+#define PROT_WRITE	0x2		/* Page can be written.  */
+#define PROT_EXEC	0x4		/* Page can be executed.  */
+#define PROT_NONE	0x0		/* Page can not be accessed.  */
+#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
+					   growsdown vma (mprotect only).  */
+#define PROT_GROWSUP	0x02000000	/* Extend change to start of
+					   growsup vma (mprotect only).  */
+
+/* Sharing types (must choose one and only one of these).  */
+#define MAP_SHARED	0x01		/* Share changes.  */
+#define MAP_PRIVATE	0x02		/* Changes are private.  */
+#ifdef __USE_MISC
+# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
+#endif
+
+/* Other flags.  */
+#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
+#ifdef __USE_MISC
+# define MAP_FILE	0
+# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
+# define MAP_ANON	MAP_ANONYMOUS
+#endif
+
+#ifdef __USE_MISC
+/* These are Linux-specific.  */
+# define MAP_NONBLOCK	0x00080		/* Do not block on IO.  */
+# define MAP_GROWSDOWN	0x00100		/* Stack-like segment.  */
+# define MAP_STACK	MAP_GROWSDOWN	/* Provide convenience alias.  */
+# define MAP_LOCKED	0x00200		/* Lock the mapping.  */
+# define MAP_NORESERVE	0x00400		/* Don't check for reservations.  */
+# define MAP_DENYWRITE	0x00800		/* ETXTBSY */
+# define MAP_EXECUTABLE	0x01000		/* Mark it as an executable.  */
+# define MAP_POPULATE	0x00040		/* Populate (prefault) pagetables.  */
+# define MAP_HUGETLB	0x04000		/* Create huge page mapping.  */
+#endif
+
+/* Flags to `msync'.  */
+#define MS_ASYNC	1		/* Sync memory asynchronously.  */
+#define MS_SYNC		4		/* Synchronous memory sync.  */
+#define MS_INVALIDATE	2		/* Invalidate the caches.  */
+
+/* Flags for `mlockall'.  */
+#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
+#define MCL_FUTURE	2		/* Lock all additions to address
+					   space.  */
+
+/* Flags for `mremap'.  */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
+#endif
+
+/* Advice to `madvise'.  */
+#ifdef __USE_BSD
+# define MADV_NORMAL	  0	/* No further special treatment.  */
+# define MADV_RANDOM	  1	/* Expect random page references.  */
+# define MADV_SEQUENTIAL  2	/* Expect sequential page references.  */
+# define MADV_WILLNEED	  3	/* Will need these pages.  */
+# define MADV_DONTNEED	  4	/* Don't need these pages.  */
+# define MADV_REMOVE	  9	/* Remove these pages and resources.  */
+# define MADV_DONTFORK	  10	/* Do not inherit across fork.  */
+# define MADV_DOFORK	  11	/* Do inherit across fork.  */
+# define MADV_MERGEABLE	  12	/* KSM may merge identical pages.  */
+# define MADV_UNMERGEABLE 13	/* KSM may not merge identical pages.  */
+# define MADV_HUGEPAGE	  14	/* Worth backing with hugepages.  */
+# define MADV_NOHUGEPAGE  15	/* Not worth backing with hugepages.  */
+# define MADV_HWPOISON	  100	/* Poison a page for testing.  */
+#endif
+
+/* The POSIX people had to invent similar names for the same things.  */
+#ifdef __USE_XOPEN2K
+# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
+# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
+# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
+# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
+# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/tile/bits/sigaction.h b/ports/sysdeps/unix/sysv/linux/tile/bits/sigaction.h
new file mode 100644
index 000000000..1696d7481
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/bits/sigaction.h
@@ -0,0 +1,78 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SIGNAL_H
+# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
+#endif
+
+/* Structure describing the action to be taken when a signal arrives.  */
+struct sigaction
+  {
+    /* Signal handler.  */
+#ifdef __USE_POSIX199309
+    union
+      {
+	/* Used if SA_SIGINFO is not set.  */
+	__sighandler_t sa_handler;
+	/* Used if SA_SIGINFO is set.  */
+	void (*sa_sigaction) (int, siginfo_t *, void *);
+      }
+    __sigaction_handler;
+# define sa_handler	__sigaction_handler.sa_handler
+# define sa_sigaction	__sigaction_handler.sa_sigaction
+#else
+    __sighandler_t sa_handler;
+#endif
+
+    /* Additional set of signals to be blocked.  */
+    __sigset_t sa_mask;
+
+    /* Special flags.  */
+    int sa_flags;
+
+    /* Restore handler.  */
+    void (*sa_restorer) (void);
+  };
+
+/* Bits in `sa_flags'.  */
+#define	SA_NOCLDSTOP  1		 /* Don't send SIGCHLD when children stop.  */
+#define SA_NOCLDWAIT  2		 /* Don't create zombie on child death.  */
+#define SA_SIGINFO    4		 /* Invoke signal-catching function with
+				    three arguments instead of one.  */
+#if defined __USE_UNIX98 || defined __USE_MISC
+# define SA_NOPTRACE  0x02000000 /* Don't ptrace this signal. */
+# define SA_ONSTACK   0x08000000 /* Use signal stack by using `sa_restorer'. */
+# define SA_RESTART   0x10000000 /* Restart syscall on signal return.  */
+# define SA_NODEFER   0x40000000 /* Don't automatically block the signal when
+				    its handler is being executed.  */
+# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler.  */
+#endif
+#ifdef __USE_MISC
+# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
+
+/* Some aliases for the SA_ constants.  */
+# define SA_NOMASK    SA_NODEFER
+# define SA_ONESHOT   SA_RESETHAND
+# define SA_STACK     SA_ONSTACK
+#endif
+
+/* Values for the HOW argument to `sigprocmask'.  */
+#define	SIG_BLOCK     0		 /* Block signals.  */
+#define	SIG_UNBLOCK   1		 /* Unblock signals.  */
+#define	SIG_SETMASK   2		 /* Set the set of blocked signals.  */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/bits/siginfo.h b/ports/sysdeps/unix/sysv/linux/tile/bits/siginfo.h
new file mode 100644
index 000000000..a6d1c2191
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/bits/siginfo.h
@@ -0,0 +1,319 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#if !defined _SIGNAL_H && !defined __need_siginfo_t \
+    && !defined __need_sigevent_t
+# error "Never include this file directly.  Use <signal.h> instead"
+#endif
+
+#include <bits/wordsize.h>
+
+#if (!defined __have_sigval_t \
+     && (defined _SIGNAL_H || defined __need_siginfo_t \
+	 || defined __need_sigevent_t))
+# define __have_sigval_t	1
+
+/* Type for data associated with a signal.  */
+typedef union sigval
+  {
+    int sival_int;
+    void *sival_ptr;
+  } sigval_t;
+#endif
+
+#if (!defined __have_siginfo_t \
+     && (defined _SIGNAL_H || defined __need_siginfo_t))
+# define __have_siginfo_t	1
+
+# define __SI_MAX_SIZE     128
+# if __WORDSIZE == 64
+#  define __SI_PAD_SIZE     ((__SI_MAX_SIZE / sizeof (int)) - 4)
+# else
+#  define __SI_PAD_SIZE     ((__SI_MAX_SIZE / sizeof (int)) - 3)
+# endif
+
+typedef struct siginfo
+  {
+    int si_signo;		/* Signal number.  */
+    int si_errno;		/* If non-zero, an errno value associated with
+				   this signal, as defined in <errno.h>.  */
+    int si_code;		/* Signal code.  */
+
+    union
+      {
+	int _pad[__SI_PAD_SIZE];
+
+	 /* kill().  */
+	struct
+	  {
+	    __pid_t si_pid;	/* Sending process ID.  */
+	    __uid_t si_uid;	/* Real user ID of sending process.  */
+	  } _kill;
+
+	/* POSIX.1b timers.  */
+	struct
+	  {
+	    int si_tid;		/* Timer ID.  */
+	    int si_overrun;	/* Overrun count.  */
+	    sigval_t si_sigval;	/* Signal value.  */
+	  } _timer;
+
+	/* POSIX.1b signals.  */
+	struct
+	  {
+	    __pid_t si_pid;	/* Sending process ID.  */
+	    __uid_t si_uid;	/* Real user ID of sending process.  */
+	    sigval_t si_sigval;	/* Signal value.  */
+	  } _rt;
+
+	/* SIGCHLD.  */
+	struct
+	  {
+	    __pid_t si_pid;	/* Which child.  */
+	    __uid_t si_uid;	/* Real user ID of sending process.  */
+	    int si_status;	/* Exit value or signal.  */
+	    __clock_t si_utime;
+	    __clock_t si_stime;
+	  } _sigchld;
+
+	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */
+	struct
+	  {
+	    void *si_addr;	/* Faulting insn/memory ref.  */
+	    int si_trapno;	/* TRAP # which caused the signal */
+	  } _sigfault;
+
+	/* SIGPOLL.  */
+	struct
+	  {
+	    long int si_band;	/* Band event for SIGPOLL.  */
+	    int si_fd;
+	  } _sigpoll;
+      } _sifields;
+  } siginfo_t;
+
+
+/* X/Open requires some more fields with fixed names.  */
+# define si_pid		_sifields._kill.si_pid
+# define si_uid		_sifields._kill.si_uid
+# define si_timerid	_sifields._timer.si_tid
+# define si_overrun	_sifields._timer.si_overrun
+# define si_status	_sifields._sigchld.si_status
+# define si_utime	_sifields._sigchld.si_utime
+# define si_stime	_sifields._sigchld.si_stime
+# define si_value	_sifields._rt.si_sigval
+# define si_int		_sifields._rt.si_sigval.sival_int
+# define si_ptr		_sifields._rt.si_sigval.sival_ptr
+# define si_addr	_sifields._sigfault.si_addr
+# define si_trapno	_sifields._sigfault.si_trapno
+# define si_band	_sifields._sigpoll.si_band
+# define si_fd		_sifields._sigpoll.si_fd
+
+
+/* Values for `si_code'.  Positive values are reserved for kernel-generated
+   signals.  */
+enum
+{
+  SI_ASYNCNL = -60,		/* Sent by asynch name lookup completion.  */
+# define SI_ASYNCNL	SI_ASYNCNL
+  SI_TKILL = -6,		/* Sent by tkill.  */
+# define SI_TKILL	SI_TKILL
+  SI_SIGIO,			/* Sent by queued SIGIO. */
+# define SI_SIGIO	SI_SIGIO
+  SI_ASYNCIO,			/* Sent by AIO completion.  */
+# define SI_ASYNCIO	SI_ASYNCIO
+  SI_MESGQ,			/* Sent by real time mesq state change.  */
+# define SI_MESGQ	SI_MESGQ
+  SI_TIMER,			/* Sent by timer expiration.  */
+# define SI_TIMER	SI_TIMER
+  SI_QUEUE,			/* Sent by sigqueue.  */
+# define SI_QUEUE	SI_QUEUE
+  SI_USER,			/* Sent by kill, sigsend, raise.  */
+# define SI_USER	SI_USER
+  SI_KERNEL = 0x80		/* Send by kernel.  */
+#define SI_KERNEL	SI_KERNEL
+};
+
+
+/* `si_code' values for SIGILL signal.  */
+enum
+{
+  ILL_ILLOPC = 1,		/* Illegal opcode.  */
+# define ILL_ILLOPC	ILL_ILLOPC
+  ILL_ILLOPN,			/* Illegal operand.  */
+# define ILL_ILLOPN	ILL_ILLOPN
+  ILL_ILLADR,			/* Illegal addressing mode.  */
+# define ILL_ILLADR	ILL_ILLADR
+  ILL_ILLTRP,			/* Illegal trap. */
+# define ILL_ILLTRP	ILL_ILLTRP
+  ILL_PRVOPC,			/* Privileged opcode.  */
+# define ILL_PRVOPC	ILL_PRVOPC
+  ILL_PRVREG,			/* Privileged register.  */
+# define ILL_PRVREG	ILL_PRVREG
+  ILL_COPROC,			/* Coprocessor error.  */
+# define ILL_COPROC	ILL_COPROC
+  ILL_BADSTK,			/* Internal stack error.  */
+# define ILL_BADSTK	ILL_BADSTK
+  ILL_DBLFLT,			/* Double fault.  */
+# define ILL_DBLFLT	ILL_DBLFLT
+  ILL_HARDWALL			/* User networks hardwall violation.  */
+# define ILL_HARDWALL	ILL_HARDWALL
+};
+
+/* `si_code' values for SIGFPE signal.  */
+enum
+{
+  FPE_INTDIV = 1,		/* Integer divide by zero.  */
+# define FPE_INTDIV	FPE_INTDIV
+  FPE_INTOVF,			/* Integer overflow.  */
+# define FPE_INTOVF	FPE_INTOVF
+  FPE_FLTDIV,			/* Floating point divide by zero.  */
+# define FPE_FLTDIV	FPE_FLTDIV
+  FPE_FLTOVF,			/* Floating point overflow.  */
+# define FPE_FLTOVF	FPE_FLTOVF
+  FPE_FLTUND,			/* Floating point underflow.  */
+# define FPE_FLTUND	FPE_FLTUND
+  FPE_FLTRES,			/* Floating point inexact result.  */
+# define FPE_FLTRES	FPE_FLTRES
+  FPE_FLTINV,			/* Floating point invalid operation.  */
+# define FPE_FLTINV	FPE_FLTINV
+  FPE_FLTSUB			/* Subscript out of range.  */
+# define FPE_FLTSUB	FPE_FLTSUB
+};
+
+/* `si_code' values for SIGSEGV signal.  */
+enum
+{
+  SEGV_MAPERR = 1,		/* Address not mapped to object.  */
+# define SEGV_MAPERR	SEGV_MAPERR
+  SEGV_ACCERR			/* Invalid permissions for mapped object.  */
+# define SEGV_ACCERR	SEGV_ACCERR
+};
+
+/* `si_code' values for SIGBUS signal.  */
+enum
+{
+  BUS_ADRALN = 1,		/* Invalid address alignment.  */
+# define BUS_ADRALN	BUS_ADRALN
+  BUS_ADRERR,			/* Non-existant physical address.  */
+# define BUS_ADRERR	BUS_ADRERR
+  BUS_OBJERR			/* Object specific hardware error.  */
+# define BUS_OBJERR	BUS_OBJERR
+};
+
+/* `si_code' values for SIGTRAP signal.  */
+enum
+{
+  TRAP_BRKPT = 1,		/* Process breakpoint.  */
+# define TRAP_BRKPT	TRAP_BRKPT
+  TRAP_TRACE			/* Process trace trap.  */
+# define TRAP_TRACE	TRAP_TRACE
+};
+
+/* `si_code' values for SIGCHLD signal.  */
+enum
+{
+  CLD_EXITED = 1,		/* Child has exited.  */
+# define CLD_EXITED	CLD_EXITED
+  CLD_KILLED,			/* Child was killed.  */
+# define CLD_KILLED	CLD_KILLED
+  CLD_DUMPED,			/* Child terminated abnormally.  */
+# define CLD_DUMPED	CLD_DUMPED
+  CLD_TRAPPED,			/* Traced child has trapped.  */
+# define CLD_TRAPPED	CLD_TRAPPED
+  CLD_STOPPED,			/* Child has stopped.  */
+# define CLD_STOPPED	CLD_STOPPED
+  CLD_CONTINUED			/* Stopped child has continued.  */
+# define CLD_CONTINUED	CLD_CONTINUED
+};
+
+/* `si_code' values for SIGPOLL signal.  */
+enum
+{
+  POLL_IN = 1,			/* Data input available.  */
+# define POLL_IN	POLL_IN
+  POLL_OUT,			/* Output buffers available.  */
+# define POLL_OUT	POLL_OUT
+  POLL_MSG,			/* Input message available.   */
+# define POLL_MSG	POLL_MSG
+  POLL_ERR,			/* I/O error.  */
+# define POLL_ERR	POLL_ERR
+  POLL_PRI,			/* High priority input available.  */
+# define POLL_PRI	POLL_PRI
+  POLL_HUP			/* Device disconnected.  */
+# define POLL_HUP	POLL_HUP
+};
+
+# undef __need_siginfo_t
+#endif	/* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
+
+
+#if (defined _SIGNAL_H || defined __need_sigevent_t) \
+    && !defined __have_sigevent_t
+# define __have_sigevent_t	1
+
+/* Structure to transport application-defined values with signals.  */
+# define __SIGEV_MAX_SIZE	64
+# if __WORDSIZE == 64
+#  define __SIGEV_PAD_SIZE	((__SIGEV_MAX_SIZE / sizeof (int)) - 4)
+# else
+#  define __SIGEV_PAD_SIZE	((__SIGEV_MAX_SIZE / sizeof (int)) - 3)
+# endif
+
+typedef struct sigevent
+  {
+    sigval_t sigev_value;
+    int sigev_signo;
+    int sigev_notify;
+
+    union
+      {
+	int _pad[__SIGEV_PAD_SIZE];
+
+	/* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the
+	   thread to receive the signal.  */
+	__pid_t _tid;
+
+	struct
+	  {
+	    void (*_function) (sigval_t);	/* Function to start.  */
+	    void *_attribute;			/* Really pthread_attr_t.  */
+	  } _sigev_thread;
+      } _sigev_un;
+  } sigevent_t;
+
+/* POSIX names to access some of the members.  */
+# define sigev_notify_function   _sigev_un._sigev_thread._function
+# define sigev_notify_attributes _sigev_un._sigev_thread._attribute
+
+/* `sigev_notify' values.  */
+enum
+{
+  SIGEV_SIGNAL = 0,		/* Notify via signal.  */
+# define SIGEV_SIGNAL	SIGEV_SIGNAL
+  SIGEV_NONE,			/* Other notification: meaningless.  */
+# define SIGEV_NONE	SIGEV_NONE
+  SIGEV_THREAD,			/* Deliver via thread creation.  */
+# define SIGEV_THREAD	SIGEV_THREAD
+
+  SIGEV_THREAD_ID = 4		/* Send signal to specific thread.  */
+#define SIGEV_THREAD_ID	SIGEV_THREAD_ID
+};
+
+#endif	/* have _SIGNAL_H.  */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/cacheflush.c b/ports/sysdeps/unix/sysv/linux/tile/cacheflush.c
new file mode 100644
index 000000000..d23a6c5c5
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/cacheflush.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+
+/* Flush cache(s). */
+int
+_flush_cache (char *addr, const int nbytes, const int op)
+{
+#ifdef __NR_cacheflush
+  return INLINE_SYSCALL (cacheflush, 3, addr, nbytes, op);
+#else
+  __set_errno (ENOSYS);
+  return -1;
+#endif
+}
+weak_alias (_flush_cache, cacheflush)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/configure b/ports/sysdeps/unix/sysv/linux/tile/configure
new file mode 100644
index 000000000..88b578848
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/configure
@@ -0,0 +1,4 @@
+# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+ # Local configure fragment for sysdeps/unix/sysv/linux/tile.
+
+arch_minimum_kernel=2.6.32
diff --git a/ports/sysdeps/unix/sysv/linux/tile/configure.in b/ports/sysdeps/unix/sysv/linux/tile/configure.in
new file mode 100644
index 000000000..b983e28be
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/configure.in
@@ -0,0 +1,4 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/tile.
+
+arch_minimum_kernel=2.6.32
diff --git a/ports/sysdeps/unix/sysv/linux/tile/getcontext.S b/ports/sysdeps/unix/sysv/linux/tile/getcontext.S
new file mode 100644
index 000000000..34bc7d8ca
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/getcontext.S
@@ -0,0 +1,96 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdep.h>
+#include <arch/abi.h>
+
+#include "ucontext_i.h"
+
+/* int getcontext (ucontext_t *ucp) */
+
+	.text
+ENTRY (__getcontext)
+	FEEDBACK_ENTER(__getcontext)
+
+	/* Save the callee-saved GPRs.  There's no need to save the
+	   caller-saved GPRs since the eventual setcontext() or
+	   swapcontext() will assume those registers are all dead.
+	   Save value "1" to uc_flags to later recognize getcontext().  */
+	{ movei r11, 1; ADDI_PTR r10, r0, UC_FLAGS_OFFSET }
+	{ ST r10, r11; addli r10, r0, UC_REG(30) }
+	{ ST r10, r30; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r31; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r32; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r33; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r34; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r35; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r36; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r37; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r38; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r39; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r40; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r41; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r42; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r43; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r44; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r45; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r46; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r47; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r48; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r49; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r50; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r51; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, r52; ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, tp;  ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, sp;  ADDI_PTR r10, r10, REGSIZE }
+	{ ST r10, lr;  ADDI_PTR r10, r10, REGSIZE }
+	lnk r11   /* Point PC at the "jrp lr" instruction.  */
+	addli r11, r11, .Lreturn - .
+	{ ST r10, r11; ADDI_PTR r10, r10, REGSIZE }
+	mfspr r11, INTERRUPT_CRITICAL_SECTION
+	{
+	 ST r10, r11
+	 movei r1, 0
+	}
+
+	/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG / 8) */
+	{
+	 movei r3, _NSIG / 8
+	 addli r2, r0, UC_SIGMASK_OFFSET
+	}
+	{
+	 movei r0, SIG_BLOCK
+	 moveli TREG_SYSCALL_NR_NAME, __NR_rt_sigprocmask
+	}
+	swint1
+	BNEZ r1, .Lsyscall_error
+
+.Lreturn:
+	{
+	 movei r0, 0
+	 jrp lr
+	}
+
+.Lsyscall_error:
+	j SYSCALL_ERROR_NAME
+
+END (__getcontext)
+.hidden __getcontext
+
+weak_alias (__getcontext, getcontext)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/kernel-features.h b/ports/sysdeps/unix/sysv/linux/tile/kernel-features.h
new file mode 100644
index 000000000..d23492298
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/kernel-features.h
@@ -0,0 +1,44 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+
+/* TILE glibc support starts with 2.6.36, guaranteeing many kernel features. */
+#define __ASSUME_NEW_GETRLIMIT_SYSCALL	1
+#define __ASSUME_TRUNCATE64_SYSCALL	1
+#define __ASSUME_MMAP2_SYSCALL		1
+#define __ASSUME_STAT64_SYSCALL		1
+#define __ASSUME_FCNTL64		1
+#define __ASSUME_CLONE_THREAD_FLAGS	1
+#define __ASSUME_TGKILL			1
+#define __ASSUME_UTIMES			1
+#define __ASSUME_FADVISE64_64_SYSCALL	1
+#define __ASSUME_O_CLOEXEC		1
+#define __ASSUME_SOCK_CLOEXEC		1
+#define __ASSUME_IN_NONBLOCK		1
+#define __ASSUME_PIPE2			1
+#define __ASSUME_EVENTFD2		1
+#define __ASSUME_SIGNALFD4		1
+#define __ASSUME_ACCEPT4		1
+#define __ASSUME_DUP3			1
+
+#include_next <kernel-features.h>
+
+/* Define this if your 32-bit syscall API requires 64-bit register
+   pairs to start with an even-number register.  */
+#define __ASSUME_ALIGNED_REGISTER_PAIRS	1
diff --git a/ports/sysdeps/unix/sysv/linux/tile/makecontext.c b/ports/sysdeps/unix/sysv/linux/tile/makecontext.c
new file mode 100644
index 000000000..060cf74bc
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/makecontext.c
@@ -0,0 +1,68 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <ucontext.h>
+#include <arch/abi.h>
+
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+  extern void __startcontext (void);
+  uint_reg_t *sp, *args;
+  va_list ap;
+  int i;
+
+  /* Initialize the top of stack. */
+  sp = (uint_reg_t *) ((((intptr_t) ucp->uc_stack.ss_sp
+                         + ucp->uc_stack.ss_size) & -16L) - 16);
+
+  /* Allow room for memory-passed arguments if necessary. */
+  if (argc > 10)
+    sp -= 2 + (argc - 10);
+
+  sp[0] = sp[1] = 0;
+
+  /* Set parameters.  */
+  va_start (ap, argc);
+  args = &ucp->uc_mcontext.gregs[0];
+  for (i = 0; i < argc; i++)
+    {
+      if (i == 10)
+        args = &sp[2];
+      *args++ = va_arg (ap, long);
+    }
+  va_end (ap);
+
+  /* Pass (*func) to __startcontext in pc.  */
+  ucp->uc_mcontext.pc = (long) func;
+
+  /* Set stack pointer.  */
+  ucp->uc_mcontext.sp = (long) sp;
+
+  /* Set the return address to trampoline.  */
+  ucp->uc_mcontext.lr = (long) __startcontext;
+
+  /* Pass ucp->uc_link to __start_context in r30.  */
+  ucp->uc_mcontext.gregs[30] = (long) ucp->uc_link;
+}
+weak_alias (__makecontext, makecontext)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/Makefile b/ports/sysdeps/unix/sysv/linux/tile/nptl/Makefile
new file mode 100644
index 000000000..79e03546f
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/Makefile
@@ -0,0 +1,7 @@
+# pull in __syscall_error routine
+libpthread-routines += sysdep
+
+ifeq ($(subdir),nptl)
+# Avoid .cfi_startproc/endproc markers when creating init and fini pieces.
+CFLAGS-pt-initfini.s += -fno-asynchronous-unwind-tables
+endif
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/bits/pthreadtypes.h b/ports/sysdeps/unix/sysv/linux/tile/nptl/bits/pthreadtypes.h
new file mode 100644
index 000000000..a71a4b77e
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/bits/pthreadtypes.h
@@ -0,0 +1,221 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_ATTR_T 56
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+# define __SIZEOF_PTHREAD_COND_T 48
+# define __SIZEOF_PTHREAD_CONDATTR_T 4
+# define __SIZEOF_PTHREAD_RWLOCK_T 56
+# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+# define __SIZEOF_PTHREAD_BARRIER_T 32
+# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+#else
+# define __SIZEOF_PTHREAD_ATTR_T 36
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+# define __SIZEOF_PTHREAD_COND_T 48
+# define __SIZEOF_PTHREAD_CONDATTR_T 4
+# define __SIZEOF_PTHREAD_RWLOCK_T 32
+# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+# define __SIZEOF_PTHREAD_BARRIER_T 20
+# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+#endif
+
+
+/* Thread identifiers.  The structure of the attribute type is not
+   exposed on purpose.  */
+typedef unsigned long int pthread_t;
+
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_ATTR_T];
+  long int __align;
+} pthread_attr_t;
+
+
+#if __WORDSIZE == 64
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structures for mutex handling.  The structure of the attribute
+   type is not exposed on purpose.  */
+typedef union
+{
+  struct __pthread_mutex_s
+  {
+    int __lock;
+    unsigned int __count;
+    int __owner;
+#if __WORDSIZE == 64
+    unsigned int __nusers;
+#endif
+    /* KIND must stay at this position in the structure to maintain
+       binary compatibility.  */
+    int __kind;
+#if __WORDSIZE == 64
+    int __spins;
+    __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV	1
+#else
+    unsigned int __nusers;
+    __extension__ union
+    {
+      int __spins;
+      __pthread_slist_t __list;
+    };
+#endif
+  } __data;
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];
+  long int __align;
+} pthread_mutex_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
+  int __align;
+} pthread_mutexattr_t;
+
+
+/* Data structure for conditional variable handling.  The structure of
+   the attribute type is not exposed on purpose.  */
+typedef union
+{
+  struct
+  {
+    int __lock;
+    unsigned int __futex;
+    __extension__ unsigned long long int __total_seq;
+    __extension__ unsigned long long int __wakeup_seq;
+    __extension__ unsigned long long int __woken_seq;
+    void *__mutex;
+    unsigned int __nwaiters;
+    unsigned int __broadcast_seq;
+  } __data;
+  char __size[__SIZEOF_PTHREAD_COND_T];
+  __extension__ long long int __align;
+} pthread_cond_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_CONDATTR_T];
+  int __align;
+} pthread_condattr_t;
+
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
+/* Data structure for read-write lock variable handling.  The
+   structure of the attribute type is not exposed on purpose.  */
+typedef union
+{
+# if __WORDSIZE == 64
+  struct
+  {
+    int __lock;
+    unsigned int __nr_readers;
+    unsigned int __readers_wakeup;
+    unsigned int __writer_wakeup;
+    unsigned int __nr_readers_queued;
+    unsigned int __nr_writers_queued;
+    int __writer;
+    int __shared;
+    unsigned long int __pad1;
+    unsigned long int __pad2;
+    /* FLAGS must stay at this position in the structure to maintain
+       binary compatibility.  */
+    unsigned int __flags;
+  } __data;
+# else
+  struct
+  {
+    int __lock;
+    unsigned int __nr_readers;
+    unsigned int __readers_wakeup;
+    unsigned int __writer_wakeup;
+    unsigned int __nr_readers_queued;
+    unsigned int __nr_writers_queued;
+    /* FLAGS must stay at this position in the structure to maintain
+       binary compatibility.  */
+    unsigned char __flags;
+    unsigned char __shared;
+    unsigned char __pad1;
+    unsigned char __pad2;
+    int __writer;
+  } __data;
+# endif
+  char __size[__SIZEOF_PTHREAD_RWLOCK_T];
+  long int __align;
+} pthread_rwlock_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
+  long int __align;
+} pthread_rwlockattr_t;
+#endif
+
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type.  */
+typedef volatile int pthread_spinlock_t;
+
+
+/* POSIX barriers data type.  The structure of the type is
+   deliberately not exposed.  */
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_BARRIER_T];
+  long int __align;
+} pthread_barrier_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
+  int __align;
+} pthread_barrierattr_t;
+#endif
+
+
+#endif /* bits/pthreadtypes.h */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/bits/semaphore.h b/ports/sysdeps/unix/sysv/linux/tile/nptl/bits/semaphore.h
new file mode 100644
index 000000000..b1eca926a
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/bits/semaphore.h
@@ -0,0 +1,42 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SEMAPHORE_H
+# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+# define __SIZEOF_SEM_T	32
+#else
+# define __SIZEOF_SEM_T	16
+#endif
+
+
+/* Value returned if `sem_open' failed.  */
+#define SEM_FAILED      ((sem_t *) 0)
+
+
+typedef union
+{
+  char __size[__SIZEOF_SEM_T];
+  long int __align;
+} sem_t;
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/clone.S b/ports/sysdeps/unix/sysv/linux/tile/nptl/clone.S
new file mode 100644
index 000000000..73a5e8461
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/clone.S
@@ -0,0 +1,220 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+/* clone() is even more special than fork() as it mucks with stacks
+   and invokes a function in the right context after it's all over.  */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+#include <asm/unistd.h>
+#include <arch/abi.h>
+#include <tls.h>
+#include <linux/sched.h>
+
+/* What we save where in the stack frame; must include all callee-saves. */
+#define FRAME_NEXT_LR   (0 * REGSIZE)  /* reserved by ABI; not used here */
+#define FRAME_SP        (1 * REGSIZE)
+#define FRAME_R30       (2 * REGSIZE)
+#define FRAME_R31       (3 * REGSIZE)
+#define FRAME_R32       (4 * REGSIZE)
+#define FRAME_SIZE      (5 * REGSIZE)
+
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+             pid_t *ptid, struct user_desc *tls, pid_t *ctid); */
+
+	.text
+ENTRY (__clone)
+	/* sanity check arguments */
+	BEQZ r0, .Linvalid
+	BEQZ r1, .Linvalid
+
+	/* Create a stack frame so we can pass callee-saves to new task. */
+	{
+	 move r10, sp
+	 ST sp, lr
+	 ADDI_PTR sp, sp, -FRAME_SIZE
+	}
+	cfi_offset (lr, 0)
+	cfi_def_cfa_offset (FRAME_SIZE)
+	ADDI_PTR r11, sp, FRAME_SP
+	{
+	 ST r11, r10
+	 ADDI_PTR r11, sp, FRAME_R30
+	}
+	{
+	 ST r11, r30
+	 ADDI_PTR r11, sp, FRAME_R31
+	}
+	cfi_offset (r30, FRAME_R30 - FRAME_SIZE)
+	{
+	 ST r11, r31
+	 ADDI_PTR r11, sp, FRAME_R32
+	}
+	cfi_offset (r31, FRAME_R31 - FRAME_SIZE)
+	ST r11, r32
+	cfi_offset (r32, FRAME_R32 - FRAME_SIZE)
+
+	/* Make sure child stack is properly aligned, and set up the
+	   top frame so that we can call out of it immediately in the
+	   child.  Setting it up here means we fault in the parent if
+	   it's bogus, which is probably cleaner than faulting first
+	   thing in the child. */
+	ADDI_PTR r1, r1, -C_ABI_SAVE_AREA_SIZE
+	andi r1, r1, -C_ABI_SAVE_AREA_SIZE
+	ADDI_PTR r9, r1, REGSIZE /* sp of this frame on entry, i.e. zero */
+	ST r9, zero
+
+	/* We need to switch the argument convention around from
+	   libc to kernel:
+	  
+	   libc:
+	    r0 fn
+	    r1 child_stack
+	    r2 flags
+	    r3 arg
+	    r4 ptid
+	    r5 tls
+	    r6 ctid
+	  
+	   kernel:
+	    r0 flags
+	    r1 child_stack [same as libc]
+	    r2 ptid
+	    r3 ctid
+	    r4 tls
+	  
+	   Plus the callee-saves as described at .Lthread_start, below.  */
+	{
+	 move r32, r0
+	 move r0, r2
+	}
+	{
+	 move r31, r3
+	 move r3, r6
+	}
+	{
+	 move r30, r2
+	 move r2, r4
+	}
+	{
+	 move r4, r5
+	 moveli TREG_SYSCALL_NR_NAME, __NR_clone
+	}
+	swint1
+	BEQZ r0, .Lthread_start  /* If in child task.  */
+
+	/* Restore the callee-saved registers and return. */
+	ADDLI_PTR lr, sp, FRAME_SIZE
+	{
+	 LD lr, lr
+	 ADDLI_PTR r30, sp, FRAME_R30
+	}
+	{
+	 LD r30, r30
+	 ADDLI_PTR r31, sp, FRAME_R31
+	}
+	{
+	 LD r31, r31
+	 ADDLI_PTR r32, sp, FRAME_R32
+	}
+	{
+	 LD r32, r32
+	 ADDI_PTR sp, sp, FRAME_SIZE
+	}
+	cfi_def_cfa_offset (0)
+
+	BNEZ r1, .Lerror
+	jrp lr
+
+.Lerror:
+	j SYSCALL_ERROR_NAME
+
+.Linvalid:
+	{
+	 movei r1, EINVAL
+	 j SYSCALL_ERROR_NAME
+	}
+	
+/* This function expects to receive:
+   
+   sp: the top of a valid stack area
+   r30: clone() flags
+   r31: the argument to pass to the user function
+   r32: the user function pointer  */
+
+.Lthread_start:
+	/* Check and see if we need to reset the PID, which we do if
+	   CLONE_THREAD isn't set, i.e. we're not staying in the thread group.
+	   If CLONE_VM is set, we're doing some kind of thread-like clone,
+	   so we set the tid/pid to -1 to disable using the cached values
+	   in getpid().  Otherwise (if CLONE_VM isn't set), it's a
+	   fork-like clone, and we go ahead and write the cached values
+	   from the true system pid (retrieved via __NR_getpid syscall).  */
+#ifdef __tilegx__
+	{
+	 moveli r0, hw1_last(CLONE_VM)
+	 moveli r1, hw1_last(CLONE_THREAD)
+	}
+	{
+	 shl16insli r0, r0, hw0(CLONE_VM)
+	 shl16insli r1, r1, hw0(CLONE_THREAD)
+	}
+#else
+	{
+	 moveli r0, lo16(CLONE_VM)
+	 moveli r1, lo16(CLONE_THREAD)
+	}
+	{
+	 auli r0, r0, ha16(CLONE_VM)
+	 auli r1, r1, ha16(CLONE_THREAD)
+	}
+#endif
+	{
+	 and r0, r30, r0
+	 and r1, r30, r1
+	}
+	BNEZ r1, .Lno_reset_pid   /* CLONE_THREAD is set */
+	{
+	 movei r0, -1
+	 BNEZ r0, .Lgotpid         /* CLONE_VM is set */
+	}
+	moveli TREG_SYSCALL_NR_NAME, __NR_getpid
+	swint1
+.Lgotpid:
+	ADDLI_PTR r2, tp, PID_OFFSET
+	{
+	 ST4 r2, r0
+	 ADDLI_PTR r2, tp, TID_OFFSET
+	}
+	ST4 r2, r0
+.Lno_reset_pid:
+	{
+	 /* Invoke user function with specified argument. */
+	 move r0, r31
+	 jalr r32
+	}
+	{
+	 j HIDDEN_JUMPTARGET(_exit)
+	 info INFO_OP_CANNOT_BACKTRACE   /* Notify backtracer to stop. */
+	}
+PSEUDO_END (__clone)
+
+weak_alias (__clone, clone)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/createthread.c b/ports/sysdeps/unix/sysv/linux/tile/nptl/createthread.c
new file mode 100644
index 000000000..816316b1d
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/createthread.c
@@ -0,0 +1,25 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+/* Value passed to 'clone' for initialization of the thread register.  */
+#define TLS_VALUE ((void *) (pd) \
+		   + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE)
+
+/* Get the real implementation.	 */
+#include <sysdeps/pthread/createthread.c>
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/fork.c b/ports/sysdeps/unix/sysv/linux/tile/nptl/fork.c
new file mode 100644
index 000000000..4267fa48e
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/fork.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <sysdep.h>
+#include <tls.h>
+
+#define ARCH_FORK() \
+  INLINE_SYSCALL (clone, 4,						      \
+		  CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD,        \
+		  0, NULL, &THREAD_SELF->tid)
+
+#include <sysdeps/unix/sysv/linux/fork.c>
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h b/ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h
new file mode 100644
index 000000000..55bddd5ba
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h
@@ -0,0 +1,281 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _LOWLEVELLOCK_H
+#define _LOWLEVELLOCK_H	1
+
+#include <time.h>
+#include <sys/param.h>
+#include <bits/pthreadtypes.h>
+#include <atomic.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+
+
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+#define FUTEX_REQUEUE		3
+#define FUTEX_CMP_REQUEUE	4
+#define FUTEX_WAKE_OP		5
+#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
+#define FUTEX_WAIT_BITSET	9
+#define FUTEX_WAKE_BITSET	10
+#define FUTEX_PRIVATE_FLAG	128
+#define FUTEX_CLOCK_REALTIME	256
+
+#define FUTEX_BITSET_MATCH_ANY	0xffffffff
+
+/* Values for 'private' parameter of locking macros.  Yes, the
+   definition seems to be backwards.  But it is not.  The bit will be
+   reversed before passing to the system call.  */
+#define LLL_PRIVATE	0
+#define LLL_SHARED	FUTEX_PRIVATE_FLAG
+
+
+#if !defined NOT_IN_libc || defined IS_IN_rtld
+/* In libc.so or ld.so all futexes are private.  */
+# ifdef __ASSUME_PRIVATE_FUTEX
+#  define __lll_private_flag(fl, private) \
+  ((fl) | FUTEX_PRIVATE_FLAG)
+# else
+#  define __lll_private_flag(fl, private) \
+  ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))
+# endif
+#else
+# ifdef __ASSUME_PRIVATE_FUTEX
+#  define __lll_private_flag(fl, private) \
+  (((fl) | FUTEX_PRIVATE_FLAG) ^ (private))
+# else
+#  define __lll_private_flag(fl, private) \
+  (__builtin_constant_p (private)					      \
+   ? ((private) == 0							      \
+      ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))	      \
+      : (fl))								      \
+   : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG)				      \
+	      & THREAD_GETMEM (THREAD_SELF, header.private_futex))))
+# endif
+#endif
+
+
+#define lll_futex_wait(futexp, val, private) \
+  lll_futex_timed_wait (futexp, val, NULL, private)
+
+#define lll_futex_timed_wait(futexp, val, timespec, private) \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    INTERNAL_SYSCALL (futex, __err, 4, (futexp),			      \
+			      __lll_private_flag (FUTEX_WAIT, private),	      \
+			      (val), (timespec));			      \
+  })
+
+#define lll_futex_wake(futexp, nr, private) \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    INTERNAL_SYSCALL (futex, __err, 4, (futexp),			      \
+			      __lll_private_flag (FUTEX_WAKE, private),	      \
+			      (nr), 0);					      \
+  })
+
+#define lll_robust_dead(futexv, private) \
+  do									      \
+    {									      \
+      int *__futexp = &(futexv);					      \
+      atomic_or (__futexp, FUTEX_OWNER_DIED);				      \
+      lll_futex_wake (__futexp, 1, private);				      \
+    }									      \
+  while (0)
+
+/* Returns non-zero if error happened, zero if success.  */
+#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val, private) \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    long int __ret;							      \
+    __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp),		      \
+			      __lll_private_flag (FUTEX_CMP_REQUEUE, private),\
+			      (nr_wake), (nr_move), (mutex), (val));	      \
+    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
+  })
+
+/* Returns non-zero if error happened, zero if success.  */
+#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    long int __ret;							      \
+    __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp),		      \
+			      __lll_private_flag (FUTEX_WAKE_OP, private),    \
+			      (nr_wake), (nr_wake2), (futexp2),		      \
+			      FUTEX_OP_CLEAR_WAKE_IF_GT_ONE);		      \
+    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
+  })
+
+
+
+
+static inline int __attribute__ ((always_inline))
+__lll_trylock (int *futex)
+{
+  return atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0;
+}
+#define lll_trylock(lock)	__lll_trylock (&(lock))
+
+
+static inline int __attribute__ ((always_inline))
+__lll_cond_trylock (int *futex)
+{
+  return atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0;
+}
+#define lll_cond_trylock(lock)	__lll_cond_trylock (&(lock))
+
+
+static inline int __attribute__ ((always_inline))
+__lll_robust_trylock (int *futex, int id)
+{
+  return atomic_compare_and_exchange_val_acq (futex, id, 0) != 0;
+}
+#define lll_robust_trylock(lock, id) \
+  __lll_robust_trylock (&(lock), id)
+
+extern void __lll_lock_wait_private (int *futex) attribute_hidden;
+extern void __lll_lock_wait (int *futex, int private) attribute_hidden;
+extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden;
+
+static inline void __attribute__ ((always_inline))
+__lll_lock (int *futex, int private)
+{
+  if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0)
+    {
+      if (__builtin_constant_p (private) && private == LLL_PRIVATE)
+	__lll_lock_wait_private (futex);
+      else
+	__lll_lock_wait (futex, private);
+    }
+}
+#define lll_lock(futex, private) __lll_lock (&(futex), private)
+
+
+static inline int __attribute__ ((always_inline))
+__lll_robust_lock (int *futex, int id, int private)
+{
+  int result = 0;
+  if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0)
+    result = __lll_robust_lock_wait (futex, private);
+  return result;
+}
+#define lll_robust_lock(futex, id, private) \
+  __lll_robust_lock (&(futex), id, private)
+
+
+static inline void __attribute__ ((always_inline))
+__lll_cond_lock (int *futex, int private)
+{
+  if (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0)
+    __lll_lock_wait (futex, private);
+}
+#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private)
+
+
+#define lll_robust_cond_lock(futex, id, private) \
+  __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private)
+
+
+extern int __lll_timedlock_wait (int *futex, const struct timespec *,
+				 int private) attribute_hidden;
+extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *,
+					int private) attribute_hidden;
+
+static inline int __attribute__ ((always_inline))
+__lll_timedlock (int *futex, const struct timespec *abstime, int private)
+{
+  int result = 0;
+  if (atomic_compare_and_exchange_bool_acq (futex, 1, 0) != 0)
+    result = __lll_timedlock_wait (futex, abstime, private);
+  return result;
+}
+#define lll_timedlock(futex, abstime, private) \
+  __lll_timedlock (&(futex), abstime, private)
+
+
+static inline int __attribute__ ((always_inline))
+__lll_robust_timedlock (int *futex, const struct timespec *abstime,
+			int id, int private)
+{
+  int result = 0;
+  if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0)
+    result = __lll_robust_timedlock_wait (futex, abstime, private);
+  return result;
+}
+#define lll_robust_timedlock(futex, abstime, id, private) \
+  __lll_robust_timedlock (&(futex), abstime, id, private)
+
+
+#define __lll_unlock(futex, private) \
+  (void)							\
+    ({ int *__futex = (futex);					\
+       int __oldval = atomic_exchange_rel (__futex, 0);		\
+       if (__builtin_expect (__oldval > 1, 0))			\
+	 lll_futex_wake (__futex, 1, private);			\
+    })
+#define lll_unlock(futex, private) __lll_unlock(&(futex), private)
+
+
+#define __lll_robust_unlock(futex, private) \
+  (void)							\
+    ({ int *__futex = (futex);					\
+       int __oldval = atomic_exchange_rel (__futex, 0);		\
+       if (__builtin_expect (__oldval & FUTEX_WAITERS, 0))	\
+	 lll_futex_wake (__futex, 1, private);			\
+    })
+#define lll_robust_unlock(futex, private) \
+  __lll_robust_unlock(&(futex), private)
+
+
+#define lll_islocked(futex) \
+  (futex != 0)
+
+/* Initializers for lock.  */
+#define LLL_LOCK_INITIALIZER		(0)
+#define LLL_LOCK_INITIALIZER_LOCKED	(1)
+
+
+/* The kernel notifies a process which uses CLONE_CLEARTID via futex
+   wakeup when the clone terminates.  The memory location contains the
+   thread ID while the clone is running and is reset to zero
+   afterwards.	*/
+#define lll_wait_tid(tid) \
+  do {							\
+    __typeof (tid) __tid;				\
+    while ((__tid = (tid)) != 0)			\
+      lll_futex_wait (&(tid), __tid, LLL_SHARED);	\
+  } while (0)
+
+extern int __lll_timedwait_tid (int *, const struct timespec *)
+  attribute_hidden;
+
+#define lll_timedwait_tid(tid, abstime) \
+  ({							\
+    int __res = 0;					\
+    if ((tid) != 0)					\
+      __res = __lll_timedwait_tid (&(tid), (abstime));	\
+    __res;						\
+  })
+
+#endif /* lowlevellock.h */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/pt-vfork.S b/ports/sysdeps/unix/sysv/linux/tile/nptl/pt-vfork.S
new file mode 100644
index 000000000..a6ccb1f51
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/pt-vfork.S
@@ -0,0 +1,2 @@
+#define PT_VFORK 1   /* pid is never zero */
+#include "vfork.S"
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/pthread_once.c b/ports/sysdeps/unix/sysv/linux/tile/nptl/pthread_once.c
new file mode 100644
index 000000000..1272be0da
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/pthread_once.c
@@ -0,0 +1,95 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <nptl/pthreadP.h>
+#include <lowlevellock.h>
+
+
+unsigned long int __fork_generation attribute_hidden;
+
+
+static void
+clear_once_control (void *arg)
+{
+  pthread_once_t *once_control = (pthread_once_t *) arg;
+
+  *once_control = 0;
+  lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
+}
+
+
+int
+__pthread_once (once_control, init_routine)
+     pthread_once_t *once_control;
+     void (*init_routine) (void);
+{
+  while (1)
+    {
+      int oldval, val, newval;
+
+      val = *once_control;
+      do
+	{
+	  /* Check if the initialized has already been done.  */
+	  if ((val & 2) != 0)
+	    return 0;
+
+	  oldval = val;
+	  newval = (oldval & 3) | __fork_generation | 1;
+	  val = atomic_compare_and_exchange_val_acq (once_control, newval,
+						     oldval);
+	}
+      while (__builtin_expect (val != oldval, 0));
+
+      /* Check if another thread already runs the initializer.	*/
+      if ((oldval & 1) != 0)
+	{
+	  /* Check whether the initializer execution was interrupted
+	     by a fork.	 */
+	  if (((oldval ^ newval) & -4) == 0)
+	    {
+	      /* Same generation, some other thread was faster. Wait.  */
+	      lll_futex_wait (once_control, newval, LLL_PRIVATE);
+	      continue;
+	    }
+	}
+
+      /* This thread is the first here.  Do the initialization.
+	 Register a cleanup handler so that in case the thread gets
+	 interrupted the initialization can be restarted.  */
+      pthread_cleanup_push (clear_once_control, once_control);
+
+      init_routine ();
+
+      pthread_cleanup_pop (0);
+
+
+      /* Add one to *once_control.  */
+      atomic_increment (once_control);
+
+      /* Wake up all other threads.  */
+      lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
+      break;
+    }
+
+  return 0;
+}
+weak_alias (__pthread_once, pthread_once)
+strong_alias (__pthread_once, __pthread_once_internal)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/sysdep-cancel.h b/ports/sysdeps/unix/sysv/linux/tile/nptl/sysdep-cancel.h
new file mode 100644
index 000000000..e00ea50a7
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/sysdep-cancel.h
@@ -0,0 +1,155 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdep.h>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <nptl/pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+/* Allow hacking in some extra code if desired. */
+#ifndef PSEUDO_EXTRA
+#define PSEUDO_EXTRA
+#endif
+
+#undef PSEUDO
+#define PSEUDO(name, syscall_name, args)				      \
+  ENTRY(__##syscall_name##_nocancel);					      \
+    PSEUDO_EXTRA							      \
+    moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name);			      \
+    swint1;								      \
+    BNEZ r1, 0f;							      \
+    jrp lr;								      \
+  END(__##syscall_name##_nocancel);					      \
+  ENTRY (name)								      \
+    SINGLE_THREAD_P(r11);						      \
+    BEQZ r11, L(pseudo_cancel);						      \
+    PSEUDO_EXTRA							      \
+    moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name);			      \
+    swint1;								      \
+    BNEZ r1, 0f;							      \
+    jrp lr;								      \
+  L(pseudo_cancel):							      \
+    {									      \
+     move r11, sp;							      \
+     ST sp, lr;								      \
+     ADDI_PTR sp, sp, -STKSPACE;					      \
+    };									      \
+    cfi_offset (lr, 0);							      \
+    cfi_def_cfa_offset (STKSPACE);					      \
+    {									      \
+     ADDI_PTR r12, sp, REGSIZE;						      \
+     ADDI_PTR r13, sp, 2 * REGSIZE;	/* set up for PUSHARGS_0 */	      \
+    };									      \
+    ST r12, r11;							      \
+    PUSHARGS_##args			/* save syscall args */	      	      \
+    CENABLE;								      \
+    ADDI_PTR r12, sp, 10 * REGSIZE;					      \
+    {									      \
+     ST r12, r0;			/* save mask */			      \
+     ADDI_PTR r13, sp, 2 * REGSIZE;	/* set up for POPARGS_0 */	      \
+    };									      \
+    POPARGS_##args			/* restore syscall args */	      \
+    PSEUDO_EXTRA							      \
+    moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name);			      \
+    swint1;								      \
+    ADDI_PTR r12, sp, 12 * REGSIZE;					      \
+    {									      \
+     ST r12, r1;			/* save syscall result */             \
+     ADDI_PTR r12, sp, 11 * REGSIZE;					      \
+    };									      \
+    {									      \
+     ST r12, r0;			                                      \
+     ADDI_PTR r13, sp, 10 * REGSIZE;					      \
+    };									      \
+    LD r0, r13;				/* pass mask as arg1 */		      \
+    CDISABLE;								      \
+    {									      \
+     ADDI_PTR lr, sp, STKSPACE;						      \
+     ADDI_PTR r0, sp, 11 * REGSIZE;					      \
+    };									      \
+    {									      \
+     LD r0, r0;								      \
+     ADDI_PTR r1, sp, 12 * REGSIZE;					      \
+    };									      \
+    LD r1, r1;								      \
+    {									      \
+     LD lr, lr;								      \
+     ADDI_PTR sp, sp, STKSPACE;						      \
+    };									      \
+    cfi_def_cfa_offset (0);						      \
+    BNEZ r1, 0f
+
+# define PUSHARGS_0 /* nothing to do */
+# define PUSHARGS_1 PUSHARGS_0 { ADDI_PTR r14, sp, 3 * REGSIZE; ST r13, r0 };
+# define PUSHARGS_2 PUSHARGS_1 { ADDI_PTR r13, sp, 4 * REGSIZE; ST r14, r1 };
+# define PUSHARGS_3 PUSHARGS_2 { ADDI_PTR r14, sp, 5 * REGSIZE; ST r13, r2 };
+# define PUSHARGS_4 PUSHARGS_3 { ADDI_PTR r13, sp, 6 * REGSIZE; ST r14, r3 };
+# define PUSHARGS_5 PUSHARGS_4 { ADDI_PTR r14, sp, 7 * REGSIZE; ST r13, r4 };
+# define PUSHARGS_6 PUSHARGS_5 { ADDI_PTR r13, sp, 8 * REGSIZE; ST r14, r5 };
+# define PUSHARGS_7 PUSHARGS_6 { ADDI_PTR r14, sp, 9 * REGSIZE; ST r13, r6 };
+
+# define POPARGS_0  /* nothing to do */
+# define POPARGS_1  POPARGS_0 { ADDI_PTR r14, sp, 3 * REGSIZE; LD r0, r13 };
+# define POPARGS_2  POPARGS_1 { ADDI_PTR r13, sp, 4 * REGSIZE; LD r1, r14 };
+# define POPARGS_3  POPARGS_2 { ADDI_PTR r14, sp, 5 * REGSIZE; LD r2, r13 };
+# define POPARGS_4  POPARGS_3 { ADDI_PTR r13, sp, 6 * REGSIZE; LD r3, r14 };
+# define POPARGS_5  POPARGS_4 { ADDI_PTR r14, sp, 7 * REGSIZE; LD r4, r13 };
+# define POPARGS_6  POPARGS_5 { ADDI_PTR r13, sp, 8 * REGSIZE; LD r5, r14 };
+# define POPARGS_7  POPARGS_6 { ADDI_PTR r14, sp, 9 * REGSIZE; LD r6, r13 };
+
+# define STKSPACE	(13 * REGSIZE)
+
+# ifdef IS_IN_libpthread
+#  define CENABLE	jal __pthread_enable_asynccancel
+#  define CDISABLE	jal __pthread_disable_asynccancel
+# elif defined IS_IN_librt
+#  define CENABLE	jal __librt_enable_asynccancel
+#  define CDISABLE	jal __librt_disable_asynccancel
+# else
+#  define CENABLE	jal __libc_enable_asynccancel
+#  define CDISABLE	jal __libc_disable_asynccancel
+# endif
+
+# ifndef __ASSEMBLER__
+#  define SINGLE_THREAD_P						\
+	__builtin_expect (THREAD_GETMEM (THREAD_SELF,			\
+					 header.multiple_threads)	\
+			  == 0, 1)
+# else
+#  define SINGLE_THREAD_P(reg)						\
+  ADDLI_PTR reg, tp, MULTIPLE_THREADS_OFFSET;                           \
+  LD reg, reg;                                                          \
+  CMPEQI reg, reg, 0
+#endif
+
+#elif !defined __ASSEMBLER__
+
+# define SINGLE_THREAD_P 1
+# define NO_CANCELLATION 1
+
+#endif
+
+#ifndef __ASSEMBLER__
+# define RTLD_SINGLE_THREAD_P                                           \
+  __builtin_expect (THREAD_GETMEM (THREAD_SELF,                         \
+                                   header.multiple_threads) == 0, 1)
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/vfork.S b/ports/sysdeps/unix/sysv/linux/tile/nptl/vfork.S
new file mode 100644
index 000000000..ed581ae86
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/vfork.S
@@ -0,0 +1,81 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdep.h>
+#define __ASSEMBLY__  /* for kernel headers */
+#include <linux/sched.h>
+#include <asm/signal.h>
+#include <tcb-offsets.h>
+
+/* Clone the calling process, but without copying the whole address space.
+   The calling process is suspended until the new process exits or is
+   replaced by a call to `execve'.  Return -1 for errors, 0 to the new process,
+   and the process ID of the new process to the old process.  */
+
+	.text
+ENTRY (__vfork)
+	{
+	 addli r11, tp, PID_OFFSET	/* Point at PID. */
+	 movei r13, 1
+	}
+	{
+	 LD4U r12, r11			/* Load the saved PID.  */
+	 shli r13, r13, 31		/* Build 0x80000000. */
+	}
+	sub r12, zero, r12		/* Negate it.  */
+#ifndef PT_VFORK
+	CMOVEQZ r12, r12, r13		/* Replace zero pids.  */
+#endif
+	ST4 r11, r12			/* Store the temporary PID.  */
+
+	{
+	 moveli r0, CLONE_VFORK | CLONE_VM | SIGCHLD
+	 move r1, zero
+	}
+	{
+	 move r2, zero
+	 move r3, zero
+	}
+	moveli TREG_SYSCALL_NR_NAME, __NR_clone
+	swint1
+
+	BEQZ r0, 1f			/* If we are the parent... */
+	{
+	 addli r11, tp, PID_OFFSET	/* Point at PID. */
+	 movei r13, 1
+	}
+	{
+	 LD4U r12, r11			/* Load the saved PID.  */
+	 shli r13, r13, 31		/* Build 0x80000000. */
+	}
+	{
+	 CMPEQ r13, r12, r12		/* Test for that value. */
+	 sub r12, zero, r12		/* Re-negate it.  */
+	}
+#ifndef PT_VFORK
+	CMOVNEZ r12, r13, zero		/* Replace zero pids.  */
+#endif
+	ST4 r11, r12			/* Restore the PID.  */
+1:
+	BNEZ r1, 0f
+	jrp lr
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/waitpid.S b/ports/sysdeps/unix/sysv/linux/tile/nptl/waitpid.S
new file mode 100644
index 000000000..9aa793e12
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/waitpid.S
@@ -0,0 +1,20 @@
+/*
+extern pid_t __waitpid_nocancel (pid_t, int *, int) attribute_hidden;
+*/
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+/* Call __NR_wait4, providing fourth argument (struct rusage *) as NULL. */
+#define PSEUDO_EXTRA move r3, zero;
+#include <sysdep-cancel.h>
+
+PSEUDO (__waitpid, wait4, 3)
+ret
+PSEUDO_END(__waitpid)
+
+libc_hidden_def (__waitpid)
+weak_alias (__waitpid, waitpid)
+libc_hidden_weak (waitpid)
+weak_alias (__waitpid, __libc_waitpid)
+libc_hidden_weak (__libc_waitpid)
+
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/tile/profil-counter.h b/ports/sysdeps/unix/sysv/linux/tile/profil-counter.h
new file mode 100644
index 000000000..38cecedcc
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/profil-counter.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <signal.h>
+#include <sigcontextinfo.h>
+
+static void
+profil_counter (int signo, SIGCONTEXT scp)
+{
+  profil_count ((void *) GET_PC (scp));
+}
diff --git a/ports/sysdeps/unix/sysv/linux/tile/set_dataplane.c b/ports/sysdeps/unix/sysv/linux/tile/set_dataplane.c
new file mode 100644
index 000000000..5e82a2335
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/set_dataplane.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <unistd.h>
+#ifdef __NR_set_dataplane
+#include <sys/dataplane.h>
+#endif
+
+/* Request dataplane modes from the kernel. */
+int
+set_dataplane (int flags)
+{
+#ifdef __NR_set_dataplane
+  return INLINE_SYSCALL (set_dataplane, 1, flags);
+#else
+  __set_errno (ENOSYS);
+  return -1;
+#endif
+}
diff --git a/ports/sysdeps/unix/sysv/linux/tile/setcontext.S b/ports/sysdeps/unix/sysv/linux/tile/setcontext.S
new file mode 100644
index 000000000..6c22bbdac
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/setcontext.S
@@ -0,0 +1,202 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdep.h>
+#include <asm/errno.h>
+#include <arch/spr_def.h>
+#include <arch/abi.h>
+
+#include "ucontext_i.h"
+
+/* PL to return to via iret in setcontext */
+#define RETURN_PL 0
+
+/* int setcontext (const ucontext_t *ucp) */
+
+	.text
+ENTRY (__setcontext)
+	FEEDBACK_ENTER(__setcontext)
+
+	/* See if this is a true signal context (flags == 0).
+	   If so, restore by invoking rt_sigreturn().  */
+#if UC_FLAGS_OFFSET != 0
+# error "Add offset to r0 prior to load."
+#endif
+	LD r10, r0
+	{
+	 BEQZ r10, .Lsigreturn
+	 addi r10, r10, -1  /* Confirm that it has value "1".  */
+	}
+	BNEZ r10, .Lbadcontext
+
+	/* Save lr and r0 briefly on the stack and set the signal mask:
+	   rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, NULL, _NSIG / 8).  */
+	{
+	 ST sp, lr
+	 ADDI_PTR r11, sp, -(2 * REGSIZE)
+	 move r10, sp
+	}
+	cfi_offset (lr, 0)
+	{
+	 ST r11, r10
+	 ADDI_PTR r10, sp, -REGSIZE
+	 ADDI_PTR sp, sp, -(3 * REGSIZE)
+	}
+	cfi_def_cfa_offset (3 * REGSIZE)
+	{
+	 ST r10, r0
+	 ADDLI_PTR r1, r0, UC_SIGMASK_OFFSET
+	}
+	cfi_offset (r0, -REGSIZE)
+	{
+	 movei r3, _NSIG / 8
+	 movei r2, 0
+	}
+	{
+	 movei r0, SIG_SETMASK
+	 moveli TREG_SYSCALL_NR_NAME, __NR_rt_sigprocmask
+	}
+	swint1
+	{
+	 ADDI_PTR sp, sp, 3 * REGSIZE
+	 ADDI_PTR r11, sp, 2 * REGSIZE  /* Restore uc_context to r11. */
+	}
+	cfi_def_cfa_offset (0)
+	LD lr, sp
+	LD r11, r11
+	{
+	 ADDI_PTR r10, r11, UC_REG(0)
+	 BNEZ r1, .Lsyscall_error
+	}
+
+	/* Restore the argument registers; note they will be random
+	   unless makecontext() has been called.  */
+	{ LD r0, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r1, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r2, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r3, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r4, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r5, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r6, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r7, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r8, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r9, r10; ADDLI_PTR r10, r10, UC_REG(30) - UC_REG(9) }
+
+	/* Restore the callee-saved GPRs.  */
+	{ LD r30, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r31, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r32, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r33, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r34, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r35, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r36, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r37, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r38, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r39, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r40, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r41, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r42, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r43, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r44, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r45, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r46, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r47, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r48, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r49, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r50, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r51, r10; ADDI_PTR r10, r10, REGSIZE }
+	{ LD r52, r10; ADDI_PTR r10, r10, REGSIZE * 2 }
+	/* Skip tp since it must not change for a given thread.  */
+	{ LD sp, r10;  ADDI_PTR r10, r10, REGSIZE }
+	{ LD lr, r10;  ADDI_PTR r10, r10, REGSIZE }
+	{ LD r11, r10; ADDI_PTR r10, r10, REGSIZE }
+
+	/* Construct an iret context; we set ICS so we can validly load
+	   EX_CONTEXT for iret without being interrupted halfway through.  */
+	{
+	 LD r12, r10
+	 movei r13, 1
+	}
+	{
+	 mtspr INTERRUPT_CRITICAL_SECTION, r13
+	 shli r12, r12, SPR_EX_CONTEXT_0_1__ICS_SHIFT
+	}
+	{
+	 mtspr EX_CONTEXT_0_0, r11
+	 ori r12, r12, RETURN_PL
+	}
+	mtspr EX_CONTEXT_0_1, r12
+	iret
+	jrp lr    /* keep the backtracer happy */
+	
+.Lsigreturn:
+	/* This is a context obtained from a signal handler.
+	   Perform a full restore by pushing the context
+	   passed onto a simulated signal frame on the stack
+	   and call the signal return syscall as if a signal
+	   handler exited normally.  */
+	{
+	 ADDLI_PTR sp, sp, -(C_ABI_SAVE_AREA_SIZE + SI_MAX_SIZE + UC_SIZE)
+	 ADDLI_PTR r1, sp, -UC_SIZE
+	}
+	cfi_def_cfa_offset (C_ABI_SAVE_AREA_SIZE + SI_MAX_SIZE + UC_SIZE)
+	moveli r2, UC_SIZE / REGSIZE
+0:      {
+	 LD r10, r0
+	 ADDI_PTR r0, r0, REGSIZE
+	}
+	{
+	 ST r1, r10
+	 ADDI_PTR r1, r1, REGSIZE
+	 addi r2, r2, -1
+	}
+	BNEZ r2, 0b
+	moveli TREG_SYSCALL_NR_NAME, __NR_rt_sigreturn
+	swint1
+
+	/* Restore the stack and fall through to the error
+	   path.  Successful rt_sigreturn never returns to
+	   its calling place.  */
+	ADDLI_PTR sp, sp, (C_ABI_SAVE_AREA_SIZE + SI_MAX_SIZE + UC_SIZE)
+	cfi_def_cfa_offset (0)
+
+.Lsyscall_error:
+	j SYSCALL_ERROR_NAME
+
+.Lbadcontext:
+	{
+	 movei r1, EINVAL
+	 j SYSCALL_ERROR_NAME
+	}
+
+END (__setcontext)
+
+.hidden __setcontext
+weak_alias (__setcontext, setcontext)
+
+ENTRY (__startcontext)
+	FEEDBACK_ENTER(__startcontext)
+	BEQZ r30, 1f
+	{
+	 move r0, r30
+	 jal __setcontext
+	}
+1:	j HIDDEN_JUMPTARGET(exit)
+END (__startcontext)
+.hidden __startcontext
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sigcontextinfo.h b/ports/sysdeps/unix/sysv/linux/tile/sigcontextinfo.h
new file mode 100644
index 000000000..fe700eaff
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sigcontextinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <arch/abi.h>
+
+#define SIGCONTEXT siginfo_t *_si, struct ucontext *
+#define SIGCONTEXT_EXTRA_ARGS _si,
+#define GET_PC(ctx)	((void *) (long) ctx->uc_mcontext.pc)
+#define GET_FRAME(ctx)	((void *) (long) ctx->uc_mcontext.regs[TREG_FP])
+#define GET_STACK(ctx)	((void *) (long) ctx->uc_mcontext.sp)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+  (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/ports/sysdeps/unix/sysv/linux/tile/swapcontext.S b/ports/sysdeps/unix/sysv/linux/tile/swapcontext.S
new file mode 100644
index 000000000..95d3afa82
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/swapcontext.S
@@ -0,0 +1,87 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+/* int swapcontext (ucontext_t *oucp, const ucontext_t *ucp) */
+
+	.text
+ENTRY (__swapcontext)
+	FEEDBACK_ENTER(__swapcontext)
+	/* Set up a frame and save r0 and r1.  */
+	{
+	 ST sp, lr
+	 ADDI_PTR r11, sp, -(3 * REGSIZE)
+	 move r10, sp
+	}
+	cfi_offset (lr, 0)
+	{
+	 ST r11, r10
+	 ADDI_PTR r10, sp, -(2 * REGSIZE)
+	}
+	{
+	 ST r10, r0
+	 ADDI_PTR r10, sp, -REGSIZE
+	 ADDI_PTR sp, sp, -(4 * REGSIZE)
+	}
+	cfi_def_cfa_offset (4 * REGSIZE)
+	ST r10, r1
+
+	/* Save the current context.  */
+	jal __getcontext
+	
+	/* Tear down the frame and restore r0, r1, and lr. */
+	{
+	 BNEZ r0, .Lerror
+	 ADDI_PTR r1, sp, 3 * REGSIZE
+	}
+	{
+	 LD r1, r1
+	 ADDI_PTR r0, sp, 2 * REGSIZE
+	}
+	{
+	 LD r0, r0
+	 ADDI_PTR sp, sp, 4 * REGSIZE
+	}
+	cfi_def_cfa_offset (0)
+	{
+	 LD lr, sp
+	 ADDLI_PTR r10, r0, UC_REG(54)
+	}
+
+	/* Update the stored sp and lr.  */
+	{
+	 ST r10, sp
+	 ADDLI_PTR r10, r0, UC_REG(55)
+	}
+	ST r10, lr
+
+	/* Tail-call setcontext to finish up.  */
+	{
+	 move r0, r1
+	 j __setcontext
+	}
+
+.Lerror:
+	jrp lr
+END (__swapcontext)
+
+weak_alias (__swapcontext, swapcontext)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sys/cachectl.h b/ports/sysdeps/unix/sysv/linux/tile/sys/cachectl.h
new file mode 100644
index 000000000..72d9e2138
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sys/cachectl.h
@@ -0,0 +1,37 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_CACHECTL_H
+#define _SYS_CACHECTL_H 1
+
+#include <features.h>
+
+/* Get the kernel definition for the op bits.  */
+#include <asm/cachectl.h>
+
+__BEGIN_DECLS
+
+#ifdef __USE_MISC
+extern int cacheflush (void *__addr, __const int __nbytes, __const int __op) __THROW;
+#endif
+extern int _flush_cache (char *__addr, __const int __nbytes, __const int __op) __THROW;
+
+__END_DECLS
+
+#endif /* sys/cachectl.h */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sys/dataplane.h b/ports/sysdeps/unix/sysv/linux/tile/sys/dataplane.h
new file mode 100644
index 000000000..d491affdb
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sys/dataplane.h
@@ -0,0 +1,32 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_DATAPLANE_H
+#define _SYS_DATAPLANE_H 1
+
+/* Get the kernel definition for the flag bits.  */
+#include <asm/dataplane.h>
+
+__BEGIN_DECLS
+
+extern int set_dataplane (int flags);
+
+__END_DECLS
+
+#endif /* sys/dataplane.h */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sys/procfs.h b/ports/sysdeps/unix/sysv/linux/tile/sys/procfs.h
new file mode 100644
index 000000000..585a223db
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sys/procfs.h
@@ -0,0 +1,129 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_PROCFS_H
+#define _SYS_PROCFS_H	1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+   systems.  It provides a definition of the core file format for ELF
+   used on Linux.  It doesn't have anything to do with the /proc file
+   system, even though Linux has one.
+
+   Anyway, the whole purpose of this file is for GDB and GDB only.
+   Don't read too much into it.  Don't use it for anything other than
+   GDB unless you know what you are doing.  */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
+#define __need_int_reg_t
+#include <arch/abi.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register.  */
+typedef __uint_reg_t elf_greg_t;
+
+/* And the whole bunch of them.  We could have used `struct pt_regs'
+   from <asm/ptrace.h> directly in the typedef, but tradition says that
+   the register set is an array, which does have some peculiar
+   semantics, so leave it that way.  */
+#define ELF_NGREG  64
+#define ELF_NFPREG 0
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+typedef elf_greg_t elf_fpregset_t[ELF_NFPREG];
+
+/* Signal info.  */
+struct elf_siginfo
+  {
+    int si_signo;			/* Signal number.  */
+    int si_code;			/* Extra code.  */
+    int si_errno;			/* Errno.  */
+  };
+
+
+/* Definitions to generate Intel SVR4-like core files.  These mostly
+   have the same names as the SVR4 types with "elf_" tacked on the
+   front to prevent clashes with Linux definitions, and the typedef
+   forms have been avoided.  This is mostly like the SVR4 structure,
+   but more Linuxy, with things that Linux does not support and which
+   GDB doesn't really use excluded.  */
+
+struct elf_prstatus
+  {
+    struct elf_siginfo pr_info;		/* Info associated with signal.  */
+    short int pr_cursig;		/* Current signal.  */
+    unsigned long int pr_sigpend;	/* Set of pending signals.  */
+    unsigned long int pr_sighold;	/* Set of held signals.  */
+    __pid_t pr_pid;
+    __pid_t pr_ppid;
+    __pid_t pr_pgrp;
+    __pid_t pr_sid;
+    struct timeval pr_utime;		/* User time.  */
+    struct timeval pr_stime;		/* System time.  */
+    struct timeval pr_cutime;		/* Cumulative user time.  */
+    struct timeval pr_cstime;		/* Cumulative system time.  */
+    elf_gregset_t pr_reg;		/* GP registers.  */
+    int pr_fpvalid;			/* True if math copro being used.  */
+  };
+
+
+#define ELF_PRARGSZ     (80)    /* Number of chars for args.  */
+
+struct elf_prpsinfo
+  {
+    char pr_state;			/* Numeric process state.  */
+    char pr_sname;			/* Char for pr_state.  */
+    char pr_zomb;			/* Zombie.  */
+    char pr_nice;			/* Nice val.  */
+    unsigned long int pr_flag;		/* Flags.  */
+    unsigned int pr_uid;
+    unsigned int pr_gid;
+    int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+    /* Lots missing */
+    char pr_fname[16];			/* Filename of executable.  */
+    char pr_psargs[ELF_PRARGSZ];	/* Initial part of arg list.  */
+  };
+
+
+/* The rest of this file provides the types for emulation of the
+   Solaris <proc_service.h> interfaces that should be implemented by
+   users of libthread_db.  */
+
+/* Addresses.  */
+typedef void *psaddr_t;
+
+/* Register sets.  Linux has different names.  */
+typedef elf_gregset_t prgregset_t;
+
+/* Provide dummy declaration here; we don't have FP registers. */
+typedef int prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+   therefore have only one PID type.  */
+typedef __pid_t lwpid_t;
+
+/* Process status and info.  In the end we do provide typedefs for them.  */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif	/* sys/procfs.h */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sys/ptrace.h b/ports/sysdeps/unix/sysv/linux/tile/sys/ptrace.h
new file mode 100644
index 000000000..554171a37
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sys/ptrace.h
@@ -0,0 +1,145 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_PTRACE_H
+#define _SYS_PTRACE_H	1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* Type of the REQUEST argument to `ptrace.'  */
+enum __ptrace_request
+{
+  /* Indicate that the process making this request should be traced.
+     All signals received by this process can be intercepted by its
+     parent, and its parent can use the other `ptrace' requests.  */
+  PTRACE_TRACEME = 0,
+#define PT_TRACE_ME PTRACE_TRACEME
+
+  /* Return the word in the process's text space at address ADDR.  */
+  PTRACE_PEEKTEXT = 1,
+#define PT_READ_I PTRACE_PEEKTEXT
+
+  /* Return the word in the process's data space at address ADDR.  */
+  PTRACE_PEEKDATA = 2,
+#define PT_READ_D PTRACE_PEEKDATA
+
+  /* Return the word in the process's user area at offset ADDR.  */
+  PTRACE_PEEKUSER = 3,
+#define PT_READ_U PTRACE_PEEKUSER
+
+  /* Write the word DATA into the process's text space at address ADDR.  */
+  PTRACE_POKETEXT = 4,
+#define PT_WRITE_I PTRACE_POKETEXT
+
+  /* Write the word DATA into the process's data space at address ADDR.  */
+  PTRACE_POKEDATA = 5,
+#define PT_WRITE_D PTRACE_POKEDATA
+
+  /* Write the word DATA into the process's user area at offset ADDR.  */
+  PTRACE_POKEUSER = 6,
+#define PT_WRITE_U PTRACE_POKEUSER
+
+  /* Continue the process.  */
+  PTRACE_CONT = 7,
+#define PT_CONTINUE PTRACE_CONT
+
+  /* Kill the process.  */
+  PTRACE_KILL = 8,
+#define PT_KILL PTRACE_KILL
+
+  /* Single step the process. */
+  PTRACE_SINGLESTEP = 9,
+#define PT_STEP PTRACE_SINGLESTEP
+
+  /* Get all general purpose registers used by a processes. */
+   PTRACE_GETREGS = 12,
+#define PT_GETREGS PTRACE_GETREGS
+
+  /* Set all general purpose registers used by a processes. */
+   PTRACE_SETREGS = 13,
+#define PT_SETREGS PTRACE_SETREGS
+
+  /* Attach to a process that is already running. */
+  PTRACE_ATTACH = 16,
+#define PT_ATTACH PTRACE_ATTACH
+
+  /* Detach from a process attached to with PTRACE_ATTACH.  */
+  PTRACE_DETACH = 17,
+#define PT_DETACH PTRACE_DETACH
+
+  /* Continue and stop at the next (return from) syscall.  */
+  PTRACE_SYSCALL = 24,
+#define PT_SYSCALL PTRACE_SYSCALL
+
+  /* Set ptrace filter options.  */
+  PTRACE_SETOPTIONS = 0x4200,
+#define PT_SETOPTIONS PTRACE_SETOPTIONS
+
+  /* Get last ptrace message.  */
+  PTRACE_GETEVENTMSG = 0x4201,
+#define PT_GETEVENTMSG PTRACE_GETEVENTMSG
+
+  /* Get siginfo for process.  */
+  PTRACE_GETSIGINFO = 0x4202,
+#define PT_GETSIGINFO PTRACE_GETSIGINFO
+
+  /* Set new siginfo for process.  */
+  PTRACE_SETSIGINFO = 0x4203
+#define PT_SETSIGINFO PTRACE_SETSIGINFO
+};
+
+
+/* Options set using PTRACE_SETOPTIONS.  */
+enum __ptrace_setoptions {
+  PTRACE_O_TRACESYSGOOD	= 0x00000001,
+  PTRACE_O_TRACEFORK	= 0x00000002,
+  PTRACE_O_TRACEVFORK   = 0x00000004,
+  PTRACE_O_TRACECLONE	= 0x00000008,
+  PTRACE_O_TRACEEXEC	= 0x00000010,
+  PTRACE_O_TRACEVFORKDONE = 0x00000020,
+  PTRACE_O_TRACEEXIT	= 0x00000040,
+  PTRACE_O_MASK		= 0x0000007f
+};
+
+/* Wait extended result codes for the above trace options.  */
+enum __ptrace_eventcodes {
+  PTRACE_EVENT_FORK	= 1,
+  PTRACE_EVENT_VFORK	= 2,
+  PTRACE_EVENT_CLONE	= 3,
+  PTRACE_EVENT_EXEC	= 4,
+  PTRACE_EVENT_VFORK_DONE = 5,
+  PTRACE_EVENT_EXIT	= 6
+};
+
+/* Perform process tracing functions.  REQUEST is one of the values
+   above, and determines the action to be taken.
+   For all requests except PTRACE_TRACEME, PID specifies the process to be
+   traced.
+
+   PID and the other arguments described above for the various requests should
+   appear (those that are used for the particular request) as:
+     pid_t PID, void *ADDR, int DATA, void *ADDR2
+   after REQUEST.  */
+extern long int ptrace (enum __ptrace_request __request, ...) __THROW;
+
+__END_DECLS
+
+#endif /* _SYS_PTRACE_H */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sys/reg.h b/ports/sysdeps/unix/sysv/linux/tile/sys/reg.h
new file mode 100644
index 000000000..1ab17ce82
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sys/reg.h
@@ -0,0 +1,2 @@
+/* The traditional purpose of "sys/reg.h" is satisfied by "arch/abi.h". */
+#include <arch/abi.h>
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sys/ucontext.h b/ports/sysdeps/unix/sysv/linux/tile/sys/ucontext.h
new file mode 100644
index 000000000..530802359
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sys/ucontext.h
@@ -0,0 +1,71 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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 _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* We need the signal context definitions even if they are not used
+   included in <signal.h>.  */
+#include <bits/sigcontext.h>
+
+/* Get register type and register names. */
+#include <arch/abi.h>
+
+/* Type for general register.  */
+typedef uint_reg_t greg_t;
+
+/* Number of general registers.  Must agree with <asm/ptrace.h>. */
+#define NGREG	64
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+#ifdef __USE_GNU
+/* Names for interesting registers in the `gregset_t' array.  */
+enum
+{
+  /* ... r0 through r51 are just 0 through 51 ... */
+  REG_FP = TREG_FP,
+# define REG_FP		REG_FP
+  REG_TP = TREG_TP,
+# define REG_TP		REG_TP
+  REG_SP = TREG_SP,
+# define REG_SP		REG_SP
+  REG_LR = TREG_LR,
+# define REG_LR		REG_LR
+};
+#endif
+
+/* A machine context is exactly a sigcontext.  */
+typedef struct sigcontext mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext
+  {
+    unsigned long int uc_flags;
+    struct ucontext *uc_link;
+    stack_t uc_stack;
+    mcontext_t uc_mcontext;
+    __sigset_t uc_sigmask;
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sys/user.h b/ports/sysdeps/unix/sysv/linux/tile/sys/user.h
new file mode 100644
index 000000000..c871f1a03
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sys/user.h
@@ -0,0 +1 @@
+/* This file is not needed, but in practice gdb might try to include it.  */
diff --git a/ports/sysdeps/unix/sysv/linux/tile/syscall.S b/ports/sysdeps/unix/sysv/linux/tile/syscall.S
new file mode 100644
index 000000000..d80295918
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/syscall.S
@@ -0,0 +1,33 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdep.h>
+#include <arch/abi.h>
+
+	.text
+ENTRY (syscall)
+	FEEDBACK_ENTER(syscall)
+	{ move TREG_SYSCALL_NR_NAME, r0; move r0, r1 }
+	{ move r1, r2; move r2, r3 }
+	{ move r3, r4; move r4, r5 }
+	{ move r5, r6; move r6, r7 }
+	swint1
+	BNEZ r1, 0f
+	jrp lr
+PSEUDO_END (syscall)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sysdep.c b/ports/sysdeps/unix/sysv/linux/tile/sysdep.c
new file mode 100644
index 000000000..f578e9188
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sysdep.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdep.h>
+#include <errno.h>
+
+int __syscall_error (int dummy, int err);
+hidden_proto (__syscall_error)
+
+/* This routine is jumped to by all the syscall handlers, to stash
+   an error number into errno.  */
+int
+__syscall_error (int dummy, int err)
+{
+  __set_errno (err);
+  return -1;
+}
+hidden_def (__syscall_error)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/sysdep.h b/ports/sysdeps/unix/sysv/linux/tile/sysdep.h
new file mode 100644
index 000000000..cf6763de2
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/sysdep.h
@@ -0,0 +1,224 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <asm/unistd.h>
+#include <sysdeps/tile/sysdep.h>
+#include <sysdeps/unix/sysv/linux/generic/sysdep.h>
+#include <sys/syscall.h>
+
+#undef SYS_ify
+#define SYS_ify(syscall_name)	__NR_##syscall_name
+
+
+#ifdef __ASSEMBLER__
+
+/* The actual implementation of doing a syscall. */
+#define DO_CALL(syscall_name, args)                     \
+  moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name);	\
+  swint1
+
+/* TILE Linux returns the result in r0 (or a negative errno).
+   The kernel "owns" the code to decide if a given value is an error,
+   and puts errno in r1 if so, or otherwise zero.  */
+#define	PSEUDO(name, syscall_name, args)		\
+  ENTRY	(name);						\
+  DO_CALL(syscall_name, args);				\
+  BNEZ r1, 0f
+
+#define ret  jrp lr
+
+#ifndef PIC
+/* For static code, on error jump to __syscall_error directly. */
+# define SYSCALL_ERROR_NAME __syscall_error
+#elif !defined NOT_IN_libc || defined IS_IN_libpthread
+/* Use the internal name for libc/libpthread shared objects. */
+# define SYSCALL_ERROR_NAME __GI___syscall_error
+#else
+/* Otherwise, on error do a full PLT jump. */
+# define SYSCALL_ERROR_NAME plt(__syscall_error)
+#endif
+
+#define	PSEUDO_END(name)				\
+0:							\
+  j SYSCALL_ERROR_NAME;					\
+  END (name)
+
+#define	PSEUDO_NOERRNO(name, syscall_name, args)	\
+  ENTRY	(name);						\
+  DO_CALL(syscall_name, args)
+
+#define ret_NOERRNO  jrp lr
+
+#define	PSEUDO_END_NOERRNO(name) \
+  END (name)
+
+/* Convenience wrappers. */
+#define SYSCALL__(name, args)   PSEUDO (__##name, name, args)
+#define SYSCALL(name, args)   PSEUDO (name, name, args)
+
+#else /* not __ASSEMBLER__ */
+
+#include <errno.h>
+
+/* Define a macro which expands inline into the wrapper code for a system
+   call.  */
+# undef INLINE_SYSCALL
+# define INLINE_SYSCALL(name, nr, args...) \
+  ({                                                                    \
+    INTERNAL_SYSCALL_DECL (err);                                        \
+    unsigned long val = INTERNAL_SYSCALL (name, err, nr, args);         \
+    if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (val, err), 0))      \
+      {                                                                 \
+	__set_errno (INTERNAL_SYSCALL_ERRNO (val, err));                \
+        val = -1;                                                       \
+      }                                                                 \
+    (long) val; })
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...)        \
+  internal_syscall##nr (SYS_ify (name), err, args)
+
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(number, err, nr, args...)  \
+  internal_syscall##nr (number, err, args)
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) int err
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) ({ (void) (val); (err) != 0; })
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) ({ (void) (val); (err); })
+
+#define internal_syscall0(num, err, dummy...)                           \
+  ({                                                                    \
+    long _sys_result, __SYSCALL_CLOBBER_DECLS;                          \
+    __asm__ __volatile__ (                                              \
+      "swint1"                                                          \
+      : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS   \
+      : "R10" (num)                                                     \
+      : __SYSCALL_CLOBBERS);                                            \
+    _sys_result;                                                        \
+  })
+
+#define internal_syscall1(num, err, arg0)                               \
+  ({                                                                    \
+    long _sys_result, __SYSCALL_CLOBBER_DECLS;                          \
+    __asm__ __volatile__ (                                              \
+      "swint1"                                                          \
+      : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS   \
+      : "R10" (num), "R00" (arg0)                                       \
+      : __SYSCALL_CLOBBERS);                                            \
+    _sys_result;                                                        \
+  })
+
+#define internal_syscall2(num, err, arg0, arg1)                         \
+  ({                                                                    \
+    long _sys_result, __SYSCALL_CLOBBER_DECLS;                          \
+    __asm__ __volatile__ (                                              \
+      "swint1"                                                          \
+      : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS   \
+      : "R10" (num), "R00" (arg0), "R01" (arg1)                         \
+      : __SYSCALL_CLOBBERS);                                            \
+    _sys_result;                                                        \
+  })
+
+#define internal_syscall3(num, err, arg0, arg1, arg2)                   \
+  ({                                                                    \
+    long _sys_result, __SYSCALL_CLOBBER_DECLS;                          \
+    __asm__ __volatile__ (                                              \
+      "swint1"                                                          \
+      : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS   \
+      : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2)           \
+      : __SYSCALL_CLOBBERS);                                            \
+    _sys_result;                                                        \
+  })
+
+#define internal_syscall4(num, err, arg0, arg1, arg2, arg3)             \
+  ({                                                                    \
+    long _sys_result, __SYSCALL_CLOBBER_DECLS;                          \
+    __asm__ __volatile__ (                                              \
+      "swint1"                                                          \
+      : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS   \
+      : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2),          \
+        "R03" (arg3)                                                    \
+      : __SYSCALL_CLOBBERS);                                            \
+    _sys_result;                                                        \
+  })
+
+#define internal_syscall5(num, err, arg0, arg1, arg2, arg3, arg4)       \
+  ({                                                                    \
+    long _sys_result, __SYSCALL_CLOBBER_DECLS;                          \
+    __asm__ __volatile__ (                                              \
+      "swint1"                                                          \
+      : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS   \
+      : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2),          \
+        "R03" (arg3), "R04" (arg4)                                      \
+      : __SYSCALL_CLOBBERS);                                            \
+    _sys_result;                                                        \
+  })
+
+#define internal_syscall6(num, err, arg0, arg1, arg2, arg3, arg4, arg5) \
+  ({                                                                    \
+    long _sys_result, __SYSCALL_CLOBBER_DECLS;                          \
+    __asm__ __volatile__ (                                              \
+      "swint1"                                                          \
+      : "=R00" (_sys_result), "=R01" (err), __SYSCALL_CLOBBER_OUTPUTS   \
+      : "R10" (num), "R00" (arg0), "R01" (arg1), "R02" (arg2),          \
+        "R03" (arg3), "R04" (arg4), "R05" (arg5)                        \
+      : __SYSCALL_CLOBBERS);                                            \
+    _sys_result;                                                        \
+  })
+
+#undef __SYSCALL_CLOBBERS
+#define __SYSCALL_CLOBBERS                                      \
+  "r6",  "r7",                                                  \
+    "r8",  "r9",        "r11", "r12", "r13", "r14", "r15",      \
+    "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",     \
+    "r24", "r25", "r26", "r27", "r28", "r29", "memory"
+
+/* gcc doesn't seem to allow an input operand to be clobbered, so we
+   fake it with dummy outputs. */
+#define __SYSCALL_CLOBBER_DECLS                                         \
+  _clobber_r2, _clobber_r3, _clobber_r4, _clobber_r5, _clobber_r10
+
+#define __SYSCALL_CLOBBER_OUTPUTS                                       \
+  "=R02" (_clobber_r2), "=R03" (_clobber_r3), "=R04" (_clobber_r4),     \
+    "=R05" (_clobber_r5), "=R10" (_clobber_r10)
+
+#endif /* not __ASSEMBLER__ */
+
+/* Pointer mangling support.  */
+#if defined NOT_IN_libc && defined IS_IN_rtld
+/* We cannot use the thread descriptor because in ld.so we use setjmp
+   earlier than the descriptor is initialized.  */
+#else
+# ifdef __ASSEMBLER__
+#  define PTR_MANGLE(reg, tmpreg) \
+	ADDLI_PTR tmpreg, pt, POINTER_GUARD; \
+	LD	tmpreg, tmpreg; \
+	xor	reg, tmpreg, reg
+#  define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
+# else
+#  define PTR_MANGLE(var) \
+  (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
+#  define PTR_DEMANGLE(var)	PTR_MANGLE (var)
+# endif
+#endif
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S b/ports/sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S
new file mode 100644
index 000000000..9ccedd4c8
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S
@@ -0,0 +1,42 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+
+/* TILE-Gx specifies that "unsigned int" is sign extended in the high
+   32 bits.  But since the userspace API claims to be "unsigned long",
+   calls into __ioctl() will not be sign extended, but rather pass all
+   64 bits of the argument.  Therefore, when we pass the "request"
+   value to the kernel, we must explicitly sign-extend it to match the
+   kernel's internal use of "unsigned int" as the second argument,
+   which we do by casting to "unsigned int".  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY (__ioctl)
+	FEEDBACK_ENTER(__ioctl)
+	{
+	 addxi r1, r1, 0
+	 moveli TREG_SYSCALL_NR_NAME, __NR_ioctl
+	}
+	swint1
+	BNEZ r1, 0f
+	jrp lr
+PSEUDO_END (__ioctl)
+weak_alias (__ioctl, ioctl)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/ldconfig.h b/ports/sysdeps/unix/sysv/linux/tile/tilegx/ldconfig.h
new file mode 100644
index 000000000..4610347a5
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/ldconfig.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdeps/generic/ldconfig.h>
+
+#define SYSDEP_KNOWN_INTERPRETER_NAMES \
+  { "/lib/ld.so.1", FLAG_ELF_LIBC6 },	\
+  { "/lib32/ld.so.1", FLAG_ELF_LIBC6 },
+#define SYSDEP_KNOWN_LIBRARY_NAMES \
+  { "libc.so.6", FLAG_ELF_LIBC6 },	\
+  { "libm.so.6", FLAG_ELF_LIBC6 },
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/register-dump.h b/ports/sysdeps/unix/sysv/linux/tile/tilegx/register-dump.h
new file mode 100644
index 000000000..092c32b8f
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/register-dump.h
@@ -0,0 +1,124 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sys/uio.h>
+#include <stdio-common/_itoa.h>
+
+/* We will print the register dump in this format:
+
+ R0:  XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R4:  XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R8:  XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R12: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R16: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R20: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R24: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R28: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R32: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R36: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R40: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R44: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R48: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX
+ R52: XXXXXXXXXXXXXXXX  TP: XXXXXXXXXXXXXXXX
+ SP:  XXXXXXXXXXXXXXXX  LR: XXXXXXXXXXXXXXXX
+
+ PC:  XXXXXXXXXXXXXXXX  ICS: X  FAULTNUM: XX
+
+ */
+
+static void
+hexvalue (unsigned long int value, char *buf, size_t len)
+{
+  char *cp = _itoa_word (value, buf + len, 16, 0);
+  while (cp > buf)
+    *--cp = '0';
+}
+
+static void
+register_dump (int fd, mcontext_t *ctx)
+{
+  char regs[59][16];
+  struct iovec iov[132];
+  size_t nr = 0;
+  unsigned int i;
+
+#define ADD_STRING(str) \
+  iov[nr].iov_base = (char *) str;					      \
+  iov[nr].iov_len = strlen (str);					      \
+  ++nr
+#define ADD_MEM(str, len) \
+  iov[nr].iov_base = str;						      \
+  iov[nr].iov_len = len;						      \
+  ++nr
+
+  /* Generate strings of register contents.  */
+  for (i = 0; i < 56; ++i)
+    hexvalue (ctx->gregs[i], regs[i], 16);
+  hexvalue (ctx->pc, regs[56], 16);
+  hexvalue (ctx->ics, regs[57], 1);
+  hexvalue (ctx->faultnum, regs[58], 2);
+
+  /* Generate the output.  */
+  for (i = 0; i < 56;)
+    {
+      const char *prefixes[] = {
+        "Register dump:\n\n R0:  ",
+        "\n R4:  ",
+        "\n R8:  ",
+        "\n R12: ",
+        "\n R16: ",
+        "\n R20:  ",
+        "\n R24:  ",
+        "\n R28:  ",
+        "\n R32:  ",
+        "\n R36:  ",
+        "\n R40:  ",
+        "\n R44:  ",
+        "\n R48:  "
+      };
+      ADD_STRING (prefixes[i / 4]);
+      do
+        {
+          ADD_MEM (regs[i], 16);
+          ADD_STRING (" ");
+        }
+      while (++i % 4);
+    }
+  ADD_STRING ("\n R52: ");
+  ADD_MEM (regs[52], 16);
+  ADD_STRING ("  TP: ");
+  ADD_MEM (regs[53], 16);
+  ADD_STRING ("\n SP: ");
+  ADD_MEM (regs[54], 16);
+  ADD_STRING ("  LR: ");
+  ADD_MEM (regs[55], 16);
+  ADD_STRING ("\n\n PC:  ");
+  ADD_MEM (regs[56], 16);
+  ADD_STRING ("  ICS: ");
+  ADD_MEM (regs[57], 1);
+  ADD_STRING ("  FAULTNUM: ");
+  ADD_MEM (regs[58], 2);
+  ADD_STRING ("\n");
+
+  /* Write the stuff out.  */
+  writev (fd, iov, nr);
+}
+
+
+#define REGISTER_DUMP register_dump (fd, &ctx->uc_mcontext)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/Implies b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/Implies
new file mode 100644
index 000000000..9090d3fb8
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/Implies
@@ -0,0 +1,4 @@
+unix/sysv/linux/tile/tilegx
+unix/sysv/linux/tile
+unix/sysv/linux/generic/wordsize-32
+unix/sysv/linux/generic
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/Implies b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/Implies
new file mode 100644
index 000000000..e4e0800c0
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/Implies
@@ -0,0 +1,4 @@
+unix/sysv/linux/tile/tilegx
+unix/sysv/linux/tile
+unix/sysv/linux/generic
+unix/sysv/linux/wordsize-64
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilepro/Implies b/ports/sysdeps/unix/sysv/linux/tile/tilepro/Implies
new file mode 100644
index 000000000..0023bb77a
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilepro/Implies
@@ -0,0 +1,3 @@
+unix/sysv/linux/tile
+unix/sysv/linux/generic/wordsize-32
+unix/sysv/linux/generic
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilepro/ldconfig.h b/ports/sysdeps/unix/sysv/linux/tile/tilepro/ldconfig.h
new file mode 100644
index 000000000..5a10db257
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilepro/ldconfig.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sysdeps/generic/ldconfig.h>
+
+#define SYSDEP_KNOWN_INTERPRETER_NAMES \
+  { "/lib/ld.so.1", FLAG_ELF_LIBC6 },
+#define SYSDEP_KNOWN_LIBRARY_NAMES \
+  { "libc.so.6", FLAG_ELF_LIBC6 },	\
+  { "libm.so.6", FLAG_ELF_LIBC6 },
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilepro/register-dump.h b/ports/sysdeps/unix/sysv/linux/tile/tilepro/register-dump.h
new file mode 100644
index 000000000..f559d1503
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilepro/register-dump.h
@@ -0,0 +1,112 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+   Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+#include <sys/uio.h>
+#include <stdio-common/_itoa.h>
+
+/* We will print the register dump in this format:
+
+ R0:  XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+ R8:  XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+ R16: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+ R24: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+ R32: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+ R40: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+ R48: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+ R52: XXXXXXXX  TP: XXXXXXXX  SP: XXXXXXXX  LR: XXXXXXXX
+
+ PC:  XXXXXXXX  ICS: X  FAULTNUM: XX
+
+ */
+
+static void
+hexvalue (unsigned long int value, char *buf, size_t len)
+{
+  char *cp = _itoa_word (value, buf + len, 16, 0);
+  while (cp > buf)
+    *--cp = '0';
+}
+
+static void
+register_dump (int fd, mcontext_t *ctx)
+{
+  char regs[59][8];
+  struct iovec iov[143];
+  size_t nr = 0;
+  unsigned int i;
+
+#define ADD_STRING(str) \
+  iov[nr].iov_base = (char *) str;					      \
+  iov[nr].iov_len = strlen (str);					      \
+  ++nr
+#define ADD_MEM(str, len) \
+  iov[nr].iov_base = str;						      \
+  iov[nr].iov_len = len;						      \
+  ++nr
+
+  /* Generate strings of register contents.  */
+  for (i = 0; i < 56; ++i)
+    hexvalue (ctx->gregs[i], regs[i], 8);
+  hexvalue (ctx->pc, regs[56], 8);
+  hexvalue (ctx->ics, regs[57], 1);
+  hexvalue (ctx->faultnum, regs[58], 2);
+
+  /* Generate the output.  */
+  for (i = 0; i < 52;)
+    {
+      const char *prefixes[] = {
+        "Register dump:\n\n R0:  ",
+        "\n R8:  ",
+        "\n R16: ",
+        "\n R24:  ",
+        "\n R32:  ",
+        "\n R40:  ",
+        "\n R48:  "
+      };
+      ADD_STRING (prefixes[i / 8]);
+      do
+        {
+          ADD_MEM (regs[i], 8);
+          ADD_STRING (" ");
+        }
+      while (++i % 8 && i < 52);
+    }
+  ADD_STRING ("\n R52: ");
+  ADD_MEM (regs[52], 8);
+  ADD_STRING ("  TP: ");
+  ADD_MEM (regs[53], 8);
+  ADD_STRING ("  SP: ");
+  ADD_MEM (regs[54], 8);
+  ADD_STRING ("  LR: ");
+  ADD_MEM (regs[55], 8);
+  ADD_STRING ("\n\n PC:  ");
+  ADD_MEM (regs[56], 8);
+  ADD_STRING ("  ICS: ");
+  ADD_MEM (regs[57], 1);
+  ADD_STRING ("  FAULTNUM: ");
+  ADD_MEM (regs[58], 2);
+  ADD_STRING ("\n");
+
+  /* Write the stuff out.  */
+  writev (fd, iov, nr);
+}
+
+
+#define REGISTER_DUMP register_dump (fd, &ctx->uc_mcontext)
diff --git a/ports/sysdeps/unix/sysv/linux/tile/ucontext_i.h b/ports/sysdeps/unix/sysv/linux/tile/ucontext_i.h
new file mode 100644
index 000000000..f255572ea
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/tile/ucontext_i.h
@@ -0,0 +1,42 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   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
+   Lesser General Public License for more details.
+
+   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.  */
+
+/* Definitions of offsets within the ucontext_t structure.  Note
+   that for convenience we use __SIZEOF_POINTER__ for "long" and
+   "ssize_t" fields (and their unsigned counterparts) as well.  */
+
+#define UC_FLAGS_OFFSET 0
+#define UC_LINK_OFFSET (UC_FLAGS_OFFSET + __SIZEOF_POINTER__)
+#define UC_STACK_SP_OFFSET (UC_LINK_OFFSET + __SIZEOF_POINTER__)
+#define UC_STACK_FLAGS_OFFSET (UC_STACK_SP_OFFSET + __SIZEOF_POINTER__)
+#define UC_STACK_SIZE_OFFSET (UC_STACK_FLAGS_OFFSET + __SIZEOF_POINTER__)
+#define UC_STACK_MCONTEXT_OFFSET (UC_STACK_SIZE_OFFSET + __SIZEOF_POINTER__)
+#define UC_REG(i) (UC_STACK_MCONTEXT_OFFSET + ((i) * REGSIZE))
+#define UC_NREGS 64
+#define UC_SIGMASK_OFFSET UC_REG(UC_NREGS)
+#define UC_SIZE (UC_SIGMASK_OFFSET + (_NSIG / 8))
+
+/* From <asm/siginfo.h> */
+#define SI_MAX_SIZE	128
+
+/* From <asm/signal.h> */
+#define _NSIG		64
+#define SIG_BLOCK          0	/* for blocking signals */
+#define SIG_UNBLOCK        1	/* for unblocking signals */
+#define SIG_SETMASK        2	/* for setting the signal mask */