Relocate AArch64 from ports to libc.

This patch moves the AArch64 port to the main sysdeps hierarchy.  The
move is essentially:

  git mv ports/sysdeps/aarch64 sysdeps/aarch64
  git mv ports/sysdeps/unix/sysv/linux/aarch64 sysdeps/unix/sysv/linux/aarch64

The README is updated and I've updated ChangeLog.aarch64 along the
lines of the ARM move.  The AArch64 build has been tested to confirm
that there were no changes in objdump -dr output or the shared
objects.

66 files changed, 6577 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/aarch64/Implies b/sysdeps/unix/sysv/linux/aarch64/Implies
new file mode 100644
index 0000000000..37b6bda7f9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/Implies
@@ -0,0 +1,2 @@
+unix/sysv/linux/generic
+unix/sysv/linux/wordsize-64
diff --git a/sysdeps/unix/sysv/linux/aarch64/Makefile b/sysdeps/unix/sysv/linux/aarch64/Makefile
new file mode 100644
index 0000000000..88250dd87d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/Makefile
@@ -0,0 +1,39 @@
+ifeq ($(subdir),csu)
+sysdep_routines      += __read_tp libc-__read_tp
+static-only-routines += __read_tp
+shared-only-routines += libc-__read_tp
+endif
+
+ifeq ($(subdir),elf)
+sysdep_routines	     += dl-vdso
+sysdep-rtld-routines += __read_tp
+ifeq ($(build-shared),yes)
+# This is needed for DSO loading from static binaries.
+sysdep-dl-routines += dl-static
+sysdep_routines += dl-static
+sysdep-rtld-routines += dl-static
+endif
+endif
+
+ifeq ($(subdir),misc)
+sysdep_headers += sys/elf.h
+endif
+
+ifeq ($(subdir),stdlib)
+gen-as-const-headers += ucontext_i.sym
+endif
+
+abi-variants := lp64
+abi-variants += lp64_be
+
+ifeq (,$(filter $(default-abi),$(abi-variants)))
+Unknown ABI, must be one of $(abi-variants)
+endif
+
+abi-lp64-options := -U__AARCH64EB__
+abi-lp64-condition := !defined __AARCH64EB__
+abi-lp64-ld-soname := ld-linux-aarch64.so.1
+
+abi-lp64_be-options := -D__AARCH64EB__
+abi-lp64_be-condition := defined __AARCH64EB__
+abi-lp64_be-ld-soname := ld-linux-aarch64_be.so.1
diff --git a/sysdeps/unix/sysv/linux/aarch64/Versions b/sysdeps/unix/sysv/linux/aarch64/Versions
new file mode 100644
index 0000000000..9bd87fe2d0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/Versions
@@ -0,0 +1,12 @@
+ld {
+  GLIBC_PRIVATE {
+    # used for loading by static libraries
+    _dl_var_init;
+  }
+}
+libc {
+  GLIBC_PRIVATE {
+    __vdso_clock_gettime;
+    __vdso_clock_getres;
+  }
+}
diff --git a/sysdeps/unix/sysv/linux/aarch64/__read_tp.S b/sysdeps/unix/sysv/linux/aarch64/__read_tp.S
new file mode 100644
index 0000000000..88d6d7e116
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/__read_tp.S
@@ -0,0 +1,25 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+	.hidden __read_tp
+ENTRY (__read_tp)
+	mrs	x0, tpidr_el0
+	RET
+END   (__read_tp)
diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h b/sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h
new file mode 100644
index 0000000000..78e13158bb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h
@@ -0,0 +1,55 @@
+/* O_*, F_*, FD_* bit values for the AArch64 Linux ABI.
+   Copyright (C) 2011-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef	_FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+#define __O_DIRECTORY	 040000
+#define __O_NOFOLLOW	0100000
+#define __O_DIRECT	0200000
+
+#define __O_LARGEFILE	0
+
+# define F_GETLK64	5
+# define F_SETLK64	6
+# define F_SETLKW64	7
+
+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').  */
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    __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
+
+/* Include generic Linux declarations.  */
+#include <bits/fcntl-linux.h>
diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/libc-vdso.h b/sysdeps/unix/sysv/linux/aarch64/bits/libc-vdso.h
new file mode 100644
index 0000000000..31732d4088
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/libc-vdso.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _LIBC_VDSO_H
+#define _LIBC_VDSO_H
+
+#ifdef SHARED
+
+extern void (*__vdso_gettimeofday) (struct timeval *, void *)
+   attribute_hidden;
+extern void (*__vdso_clock_gettime) (clockid_t, struct timespec *);
+extern void (*__vdso_clock_getres) (clockid_t, struct timespec *);
+
+#endif
+
+#endif /* _LIBC_VDSO_H */
diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/mman.h b/sysdeps/unix/sysv/linux/aarch64/bits/mman.h
new file mode 100644
index 0000000000..d730247108
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/mman.h
@@ -0,0 +1,44 @@
+/* Definitions for POSIX memory map interface.  Linux/AArch64 version.
+
+   Copyright (C) 1997-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#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.  */
+
+/* These are Linux-specific.  */
+#ifdef __USE_MISC
+# define MAP_GROWSDOWN	0x00100		/* Stack-like segment.  */
+# define MAP_DENYWRITE	0x00800		/* ETXTBSY */
+# define MAP_EXECUTABLE	0x01000		/* Mark it as an executable.  */
+# define MAP_LOCKED	0x02000		/* Lock the mapping.  */
+# define MAP_NORESERVE	0x04000		/* Don't check for reservations.  */
+# define MAP_POPULATE	0x08000		/* Populate (prefault) pagetables.  */
+# define MAP_NONBLOCK	0x10000		/* Do not block on IO.  */
+# define MAP_STACK	0x20000		/* Allocation is for a stack.  */
+# define MAP_HUGETLB	0x40000		/* Create huge page mapping.  */
+#endif
+
+
+
+/* Include generic Linux declarations.  */
+#include <bits/mman-linux.h>
diff --git a/sysdeps/unix/sysv/linux/aarch64/clone.S b/sysdeps/unix/sysv/linux/aarch64/clone.S
new file mode 100644
index 0000000000..f2964f4871
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/clone.S
@@ -0,0 +1,104 @@
+/* Copyright (C) 1996-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* clone() is even more special than fork() as it mucks with stacks
+   and invokes a function in the right context after its all over.  */
+
+#include <sysdep.h>
+#define _ERRNO_H	1
+#include <bits/errno.h>
+
+#define CLONE_VM_BIT      8
+#define CLONE_VM          (1 << CLONE_VM_BIT)
+
+#define CLONE_THREAD_BIT  16
+#define CLONE_THREAD      (1 << CLONE_THREAD_BIT)
+
+/* int clone(int (*fn)(void *arg),            x0
+	     void *child_stack,               x1
+	     int flags,                       x2
+	     void *arg,                       x3
+	     pid_t *ptid,                     x4
+	     struct user_desc *tls,           x5
+             pid_t *ctid);                    x6
+ */
+        .text
+ENTRY(__clone)
+	/* Sanity check args.  */
+	cbz	x0, 1f
+	cbz	x1, 1f
+	/* Insert the args onto the new stack.  */
+	stp	x0, x3, [x1, #-16]!	/* Fn, arg.  */
+
+	/* Do the system call.  */
+	mov	x0, x2                  /* flags  */
+
+	/* New sp is already in x1.  */
+	mov	x2, x4			/* ptid  */
+	mov	x3, x5			/* tls  */
+	mov	x4, x6			/* ctid  */
+
+#ifdef RESET_PID
+	/* We rely on the kernel preserving the argument regsiters across a
+	   each system call so that we can inspect the flags against after
+	   the clone call.  */
+	mov	x5, x0
+#endif
+
+	mov	x8, #SYS_ify(clone)
+	/* X0:flags, x1:newsp, x2:parenttidptr, x3:newtls, x4:childtid.  */
+	svc	0x0
+	cfi_endproc
+	cmp	x0, #0
+	beq	2f
+	blt	3f
+	RET
+1:	mov	x0, #-EINVAL
+3:
+	b	syscall_error
+
+2:
+	cfi_startproc
+	cfi_undefined (x30)
+	mov	x29, 0
+#ifdef RESET_PID
+	tbnz	x5, #CLONE_THREAD_BIT, 3f
+	mov	x0, #-1
+	tbnz	x5, #CLONE_VM_BIT, 2f
+	mov	x8, #SYS_ify(getpid)
+	svc	0x0
+2:
+	mrs	x1, tpidr_el0
+	sub	x1, x1, #PTHREAD_SIZEOF
+	str	w0, [x1, #PTHREAD_PID_OFFSET]
+	str	w0, [x1, #PTHREAD_TID_OFFSET]
+
+3:
+#endif
+	/* Pick the function arg and call address from the stack and
+	   execute.  */
+	ldp	x1, x0, [sp], #16
+	blr	x1
+
+	/* We are done, pass the return value through x0.  */
+	b	HIDDEN_JUMPTARGET(_exit)
+	cfi_endproc
+	cfi_startproc
+PSEUDO_END (__clone)
+
+weak_alias (__clone, clone)
diff --git a/sysdeps/unix/sysv/linux/aarch64/configure b/sysdeps/unix/sysv/linux/aarch64/configure
new file mode 100644
index 0000000000..20593c7bb0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/configure
@@ -0,0 +1,17 @@
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
+ # Local configure fragment for sysdeps/unix/sysv/linux/aarch64.
+
+arch_minimum_kernel=3.7.0
+
+test -n "$libc_cv_slibdir" ||
+case "$prefix" in
+  /usr | /usr/)
+    libc_cv_slibdir="/lib64"
+    libc_cv_rtlddir="/lib"
+    if test "$libdir" = '${exec_prefix}/lib'; then
+      libdir='${exec_prefix}/lib64';
+      # Locale data can be shared between 32bit and 64bit libraries
+      libc_cv_localedir='${exec_prefix}/lib/locale'
+    fi
+    ;;
+esac
diff --git a/sysdeps/unix/sysv/linux/aarch64/configure.ac b/sysdeps/unix/sysv/linux/aarch64/configure.ac
new file mode 100644
index 0000000000..b090702134
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/configure.ac
@@ -0,0 +1,17 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/aarch64.
+
+arch_minimum_kernel=3.7.0
+
+test -n "$libc_cv_slibdir" ||
+case "$prefix" in
+  /usr | /usr/)
+    libc_cv_slibdir="/lib64"
+    libc_cv_rtlddir="/lib"
+    if test "$libdir" = '${exec_prefix}/lib'; then
+      libdir='${exec_prefix}/lib64';
+      # Locale data can be shared between 32bit and 64bit libraries
+      libc_cv_localedir='${exec_prefix}/lib/locale'
+    fi
+    ;;
+esac
diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-cache.h b/sysdeps/unix/sysv/linux/aarch64/dl-cache.h
new file mode 100644
index 0000000000..32851d00b2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/dl-cache.h
@@ -0,0 +1,45 @@
+/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
+   Copyright (C) 2003-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <ldconfig.h>
+
+#define _DL_CACHE_DEFAULT_ID    (FLAG_AARCH64_LIB64 | FLAG_ELF_LIBC6)
+
+#define _dl_cache_check_flags(flags)                    \
+  ((flags) == _DL_CACHE_DEFAULT_ID)
+
+#define add_system_dir(dir) \
+  do								\
+    {								\
+      size_t len = strlen (dir);				\
+      char path[len + 3];					\
+      memcpy (path, dir, len + 1);				\
+      if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6))	\
+	{							\
+	  len -= 2;						\
+	  path[len] = '\0';					\
+	}							\
+      add_dir (path);						\
+      if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4))	\
+	{							\
+	  memcpy (path + len, "64", 3);				\
+	  add_dir (path);					\
+	}							\
+    } while (0)
+
+#include_next <dl-cache.h>
diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-static.c b/sysdeps/unix/sysv/linux/aarch64/dl-static.c
new file mode 100644
index 0000000000..3c29c564ef
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/dl-static.c
@@ -0,0 +1,84 @@
+/* Variable initialization.  AArch64 version.
+   Copyright (C) 2001-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <ldsodefs.h>
+
+#ifdef SHARED
+
+void
+_dl_var_init (void *array[])
+{
+  /* It has to match "variables" below. */
+  enum
+    {
+      DL_PAGESIZE = 0
+    };
+
+  GLRO(dl_pagesize) = *((size_t *) array[DL_PAGESIZE]);
+}
+
+#else
+
+static void *variables[] =
+{
+  &GLRO(dl_pagesize)
+};
+
+static void
+_dl_unprotect_relro (struct link_map *l)
+{
+  ElfW(Addr) start = ((l->l_addr + l->l_relro_addr)
+		      & ~(GLRO(dl_pagesize) - 1));
+  ElfW(Addr) end = ((l->l_addr + l->l_relro_addr + l->l_relro_size)
+		    & ~(GLRO(dl_pagesize) - 1));
+
+  if (start != end)
+    __mprotect ((void *) start, end - start, PROT_READ | PROT_WRITE);
+}
+
+void
+_dl_static_init (struct link_map *l)
+{
+  struct link_map *rtld_map = l;
+  struct r_scope_elem **scope;
+  const ElfW(Sym) *ref = NULL;
+  lookup_t loadbase;
+  void (*f) (void *[]);
+  size_t i;
+
+  loadbase = _dl_lookup_symbol_x ("_dl_var_init", l, &ref, l->l_local_scope,
+				  NULL, 0, 1, NULL);
+
+  for (scope = l->l_local_scope; *scope != NULL; scope++)
+    for (i = 0; i < (*scope)->r_nlist; i++)
+      if ((*scope)->r_list[i] == loadbase)
+	{
+	  rtld_map = (*scope)->r_list[i];
+	  break;
+	}
+
+  if (ref != NULL)
+    {
+      f = (void (*) (void *[])) DL_SYMBOL_ADDRESS (loadbase, ref);
+      _dl_unprotect_relro (rtld_map);
+      f (variables);
+      _dl_protect_relro (rtld_map);
+    }
+}
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/aarch64/getcontext.S b/sysdeps/unix/sysv/linux/aarch64/getcontext.S
new file mode 100644
index 0000000000..70b2e32431
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/getcontext.S
@@ -0,0 +1,108 @@
+/* Save current context.
+
+   Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include "ucontext_i.h"
+#include "ucontext-internal.h"
+
+/* int getcontext (ucontext_t *ucp)
+
+   Returns 0 on success -1 and errno on failure.
+ */
+
+	.text
+
+ENTRY(__getcontext)
+	/* The saved context will return to the getcontext() call point
+	   with a return value of 0 */
+	str	xzr,	  [x0, oX0 +  0 * SZREG]
+
+	stp	x18, x19, [x0, oX0 + 18 * SZREG]
+	stp	x20, x21, [x0, oX0 + 20 * SZREG]
+	stp	x22, x23, [x0, oX0 + 22 * SZREG]
+	stp	x24, x25, [x0, oX0 + 24 * SZREG]
+	stp	x26, x27, [x0, oX0 + 26 * SZREG]
+	stp	x28, x29, [x0, oX0 + 28 * SZREG]
+	str     x30,      [x0, oX0 + 30 * SZREG]
+
+	/* Place LR into the saved PC, this will ensure that when
+	   switching to this saved context with setcontext() control
+	   will pass back to the caller of getcontext(), we have
+	   already arrange to return the appropriate return value in x0
+	   above.  */
+	str	x30, [x0, oPC]
+
+	/* Save the current SP */
+	mov	x2, sp
+	str     x2, [x0, oSP]
+
+	/* Initialize the pstate.  */
+	str	xzr, [x0, oPSTATE]
+
+	/* Figure out where to place the first context extension
+	   block.  */
+	add     x2, x0, #oEXTENSION
+
+	/* Write the context extension fpsimd header.  */
+	mov	w3, #(FPSIMD_MAGIC & 0xffff)
+	movk	w3, #(FPSIMD_MAGIC >> 16), lsl #16
+	str	w3, [x2, #oHEAD + oMAGIC]
+	mov	w3, #FPSIMD_CONTEXT_SIZE
+	str	w3, [x2, #oHEAD + oSIZE]
+
+	/* Fill in the FP SIMD context.  */
+	add	x3, x2, #oV0 + 8 * SZVREG
+	stp	 d8,  d9, [x3], # 2 * SZVREG
+	stp	d10, d11, [x3], # 2 * SZVREG
+	stp	d12, d13, [x3], # 2 * SZVREG
+	stp	d14, d15, [x3], # 2 * SZVREG
+
+	add	x3, x2, oFPSR
+
+	mrs	x4, fpsr
+	str	w4, [x3]
+
+	mrs	x4, fpcr
+	str	w4, [x3, oFPCR - oFPSR]
+
+	/* Write the termination context extension header.  */
+	add	x2, x2, #FPSIMD_CONTEXT_SIZE
+
+	str	xzr, [x2, #oHEAD + oMAGIC]
+	str	xzr, [x2, #oHEAD + oSIZE]
+
+	/* Grab the signal mask */
+	/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
+	add	x2, x0, #UCONTEXT_SIGMASK
+	mov	x0, SIG_BLOCK
+	mov	x1, 0
+	mov	x3, _NSIG8
+	mov	x8, SYS_ify (rt_sigprocmask)
+	svc	0
+	cbnz	x0, 1f
+
+	/* Return 0 for success */
+	mov	x0, 0
+	RET
+1:
+	b	C_SYMBOL_NAME(__syscall_error)
+
+	PSEUDO_END (__getcontext)
+weak_alias (__getcontext, getcontext)
diff --git a/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c b/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c
new file mode 100644
index 0000000000..267cfae307
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <sys/time.h>
+
+#undef __gettimeofday
+
+#include <bits/libc-vdso.h>
+
+/* Get the current time of day and timezone information,
+   putting it into *tv and *tz.  If tz is null, *tz is not filled.
+   Returns 0 on success, -1 on errors.  */
+int
+__gettimeofday (tv, tz)
+     struct timeval *tv;
+     struct timezone *tz;
+{
+  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
+}
+libc_hidden_def (__gettimeofday)
+weak_alias (__gettimeofday, gettimeofday)
+libc_hidden_weak (gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/aarch64/init-first.c b/sysdeps/unix/sysv/linux/aarch64/init-first.c
new file mode 100644
index 0000000000..b16bfeb8d9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/init-first.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 2007-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifdef SHARED
+# include <dl-vdso.h>
+# undef __gettimeofday
+# undef __clock_gettime
+# undef __clock_getres
+# include <bits/libc-vdso.h>
+
+void (*__vdso_gettimeofday) (struct timeval *, void *) attribute_hidden;
+void (*__vdso_clock_gettime) (clockid_t, struct timespec *);
+void (*__vdso_clock_getres) (clockid_t, struct timespec *);
+
+static inline void
+_libc_vdso_platform_setup (void)
+{
+  PREPARE_VERSION (linux2639, "LINUX_2.6.39", 123718537);
+
+  __vdso_gettimeofday  = _dl_vdso_vsym ("__kernel_gettimeofday",  &linux2639);
+  __vdso_clock_gettime = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2639);
+  __vdso_clock_getres  = _dl_vdso_vsym ("__kernel_clock_getres",  &linux2639);
+}
+
+# define VDSO_SETUP _libc_vdso_platform_setup
+#endif
+
+#include <csu/init-first.c>
diff --git a/sysdeps/unix/sysv/linux/aarch64/ioctl.S b/sysdeps/unix/sysv/linux/aarch64/ioctl.S
new file mode 100644
index 0000000000..4443f5a4aa
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/ioctl.S
@@ -0,0 +1,30 @@
+/* Copyright (C) 2012-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+	.text
+ENTRY(__ioctl)
+	movz	x8, #__NR_ioctl
+        sxtw	x0, w0
+        svc	#0x0
+	cmn	x0, #0x1, lsl #12
+	PSEUDO_RET
+	PSEUDO_END (__ioctl)
+
+weak_alias (__ioctl, ioctl)
diff --git a/sysdeps/unix/sysv/linux/aarch64/kernel-features.h b/sysdeps/unix/sysv/linux/aarch64/kernel-features.h
new file mode 100644
index 0000000000..c736eb9c0e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/kernel-features.h
@@ -0,0 +1,37 @@
+/* Set flags signalling availability of kernel features based on given
+   kernel version number.
+
+   Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <linux/version.h>
+
+/* AArch64 support starts with 3.7.0, guaranteeing many kernel
+   features.  */
+
+#define __ASSUME_ACCEPT4                1
+#define __ASSUME_DUP3                   1
+#define __ASSUME_EVENTFD2		1
+#define __ASSUME_IN_NONBLOCK            1
+#define __ASSUME_O_CLOEXEC              1
+#define __ASSUME_PIPE2                  1
+#define __ASSUME_SIGNALFD4		1
+#define __ASSUME_SOCK_CLOEXEC           1
+#define __ASSUME_UTIMES                 1
+
+#include_next <kernel-features.h>
diff --git a/sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h b/sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h
new file mode 100644
index 0000000000..8af31f6335
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h
@@ -0,0 +1,25 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This structure must have the same shape as the linux kernel
+   equivalent.  */
+struct kernel_rt_sigframe
+{
+  siginfo_t info;
+  struct ucontext uc;
+};
diff --git a/sysdeps/unix/sysv/linux/aarch64/ldconfig.h b/sysdeps/unix/sysv/linux/aarch64/ldconfig.h
new file mode 100644
index 0000000000..b0e6b6a2ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/ldconfig.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdeps/generic/ldconfig.h>
+
+#define SYSDEP_KNOWN_INTERPRETER_NAMES \
+  { "/lib/ld-linux-aarch64.so.1", FLAG_ELF_LIBC6 }, \
+  { "/lib/ld-linux-aarch64_be.so.1", FLAG_ELF_LIBC6 }, \
+  { "/lib/ld-linux.so.3", FLAG_ELF_LIBC6 }, \
+  { "/lib/ld-linux-armhf.so.3", FLAG_ELF_LIBC6 },
+#define SYSDEP_KNOWN_LIBRARY_NAMES \
+  { "libc.so.6", FLAG_ELF_LIBC6 },	\
+  { "libm.so.6", FLAG_ELF_LIBC6 },
diff --git a/sysdeps/unix/sysv/linux/aarch64/ldsodefs.h b/sysdeps/unix/sysv/linux/aarch64/ldsodefs.h
new file mode 100644
index 0000000000..77942682c1
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/ldsodefs.h
@@ -0,0 +1,32 @@
+/* Run-time dynamic linker data structures for loaded ELF shared objects. Tile.
+   Copyright (C) 2001-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef	_LDSODEFS_H
+
+/* Get the real definitions.  */
+#include_next <ldsodefs.h>
+
+/* Now define our stuff.  */
+
+/* We need special support to initialize DSO loaded for statically linked
+   binaries.  */
+extern void _dl_static_init (struct link_map *map);
+#undef DL_STATIC_INIT
+#define DL_STATIC_INIT(map) _dl_static_init (map)
+
+#endif /* ldsodefs.h */
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc-__read_tp.S b/sysdeps/unix/sysv/linux/aarch64/libc-__read_tp.S
new file mode 100644
index 0000000000..25615aa579
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/libc-__read_tp.S
@@ -0,0 +1,19 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <__read_tp.S>
diff --git a/sysdeps/unix/sysv/linux/aarch64/makecontext.c b/sysdeps/unix/sysv/linux/aarch64/makecontext.c
new file mode 100644
index 0000000000..806eab2cf9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/makecontext.c
@@ -0,0 +1,74 @@
+/* Create new context.
+   Copyright (C) 2002-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <ucontext.h>
+
+
+/* makecontext sets up a stack and the registers for the
+   user context.  The stack looks like this:
+
+               +-----------------------+
+	       | padding as required   |
+               +-----------------------+
+    sp ->      | parameter 7-n         |
+               +-----------------------+
+
+   The registers are set up like this:
+     %x0 .. %x7: parameter 1 to 8
+     %x19   : uc_link
+     %sp    : stack pointer.
+*/
+
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+  extern void __startcontext (void);
+  unsigned long int *sp;
+  va_list ap;
+  int i;
+
+  sp = (unsigned long int *)
+    ((uintptr_t) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size);
+
+  /* Allocate stack arguments.  */
+  sp -= argc < 8 ? 0 : argc - 8;
+
+  /* Keep the stack aligned.  */
+  sp = (unsigned long int *) (((uintptr_t) sp) & -16L);
+
+  ucp->uc_mcontext.regs[19] = (uintptr_t) ucp->uc_link;
+  ucp->uc_mcontext.sp = (uintptr_t) sp;
+  ucp->uc_mcontext.pc = (uintptr_t) func;
+  ucp->uc_mcontext.regs[29] = (uintptr_t) 0;
+  ucp->uc_mcontext.regs[30] = (uintptr_t) &__startcontext;
+
+  va_start (ap, argc);
+  for (i = 0; i < argc; ++i)
+    if (i < 8)
+      ucp->uc_mcontext.regs[i] = va_arg (ap, unsigned long int);
+    else
+      sp[i - 8] = va_arg (ap, unsigned long int);
+
+  va_end (ap);
+}
+
+weak_alias (__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/aarch64/mmap.c b/sysdeps/unix/sysv/linux/aarch64/mmap.c
new file mode 100644
index 0000000000..54ecc10fbc
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/mmap.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <sys/syscall.h>
+#include <sysdep.h>
+#include <unistd.h>
+
+__ptr_t
+__mmap (__ptr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
+{
+  return (__ptr_t) INLINE_SYSCALL (mmap, 6, addr, len, prot, flags, fd, offset);
+}
+
+weak_alias (__mmap, mmap)
+weak_alias (__mmap, mmap64)
+weak_alias (__mmap, __mmap64)
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/bits/local_lim.h b/sysdeps/unix/sysv/linux/aarch64/nptl/bits/local_lim.h
new file mode 100644
index 0000000000..0b01c72de4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/bits/local_lim.h
@@ -0,0 +1,101 @@
+/* Minimum guaranteed maximum values for system limits.  Linux version.
+   Copyright (C) 1993-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* 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/sysdeps/unix/sysv/linux/aarch64/nptl/bits/pthreadtypes.h b/sysdeps/unix/sysv/linux/aarch64/nptl/bits/pthreadtypes.h
new file mode 100644
index 0000000000..f11eeabb17
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/bits/pthreadtypes.h
@@ -0,0 +1,169 @@
+/* Copyright (C) 2002-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#include <endian.h>
+
+#define __SIZEOF_PTHREAD_ATTR_T        64
+#define __SIZEOF_PTHREAD_MUTEX_T       48
+#define __SIZEOF_PTHREAD_MUTEXATTR_T    8
+#define __SIZEOF_PTHREAD_COND_T        48
+#define __SIZEOF_PTHREAD_COND_COMPAT_T 48
+#define __SIZEOF_PTHREAD_CONDATTR_T     8
+#define __SIZEOF_PTHREAD_RWLOCK_T      56
+#define __SIZEOF_PTHREAD_RWLOCKATTR_T   8
+#define __SIZEOF_PTHREAD_BARRIER_T     32
+#define __SIZEOF_PTHREAD_BARRIERATTR_T  8
+
+
+/* Thread identifiers.  The structure of the attribute type is not
+   exposed on purpose.  */
+typedef unsigned long int pthread_t;
+
+
+union pthread_attr_t
+{
+  char __size[__SIZEOF_PTHREAD_ATTR_T];
+  long int __align;
+};
+#ifndef __have_pthread_attr_t
+typedef union pthread_attr_t pthread_attr_t;
+# define __have_pthread_attr_t1
+#endif
+
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+
+
+/* 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;
+    unsigned int __nusers;
+    int __kind;
+    int __spins;
+    __pthread_list_t __list;
+#define __PTHREAD_MUTEX_HAVE_PREV	1
+  } __data;
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];
+  long int __align;
+} pthread_mutex_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
+  long 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];
+  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
+{
+  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;
+    unsigned int __flags;
+  } __data;
+  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/sysdeps/unix/sysv/linux/aarch64/nptl/bits/semaphore.h b/sysdeps/unix/sysv/linux/aarch64/nptl/bits/semaphore.h
new file mode 100644
index 0000000000..c865de786d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/bits/semaphore.h
@@ -0,0 +1,35 @@
+/* Copyright (C) 2002-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SEMAPHORE_H
+# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
+#endif
+
+
+#define __SIZEOF_SEM_T	32
+
+
+/* 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/sysdeps/unix/sysv/linux/aarch64/nptl/c++-types.data b/sysdeps/unix/sysv/linux/aarch64/nptl/c++-types.data
new file mode 100644
index 0000000000..ac925ccb36
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/c++-types.data
@@ -0,0 +1,67 @@
+blkcnt64_t:l
+blkcnt_t:l
+blksize_t:i
+caddr_t:Pc
+clockid_t:i
+clock_t:l
+daddr_t:i
+dev_t:m
+fd_mask:l
+fsblkcnt64_t:m
+fsblkcnt_t:m
+fsfilcnt64_t:m
+fsfilcnt_t:m
+fsid_t:8__fsid_t
+gid_t:j
+id_t:j
+ino64_t:m
+ino_t:m
+int16_t:s
+int32_t:i
+int64_t:l
+int8_t:a
+intptr_t:l
+key_t:i
+loff_t:l
+mode_t:j
+nlink_t:j
+off64_t:l
+off_t:l
+pid_t:i
+pthread_attr_t:14pthread_attr_t
+pthread_barrier_t:17pthread_barrier_t
+pthread_barrierattr_t:21pthread_barrierattr_t
+pthread_cond_t:14pthread_cond_t
+pthread_condattr_t:18pthread_condattr_t
+pthread_key_t:j
+pthread_mutex_t:15pthread_mutex_t
+pthread_mutexattr_t:19pthread_mutexattr_t
+pthread_once_t:i
+pthread_rwlock_t:16pthread_rwlock_t
+pthread_rwlockattr_t:20pthread_rwlockattr_t
+pthread_spinlock_t:i
+pthread_t:m
+quad_t:l
+register_t:l
+rlim64_t:m
+rlim_t:m
+sigset_t:10__sigset_t
+size_t:m
+socklen_t:j
+ssize_t:l
+suseconds_t:l
+time_t:l
+u_char:h
+uid_t:j
+uint:j
+u_int:j
+u_int16_t:t
+u_int32_t:j
+u_int64_t:m
+u_int8_t:h
+ulong:m
+u_long:m
+u_quad_t:m
+useconds_t:j
+ushort:t
+u_short:t
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/clone.S b/sysdeps/unix/sysv/linux/aarch64/nptl/clone.S
new file mode 100644
index 0000000000..281be3b670
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/clone.S
@@ -0,0 +1,21 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define RESET_PID
+#include <tcb-offsets.h>
+#include "../clone.S"
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/createthread.c b/sysdeps/unix/sysv/linux/aarch64/nptl/createthread.c
new file mode 100644
index 0000000000..e5f1e4dcf9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/createthread.c
@@ -0,0 +1,23 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Value passed to 'clone' for initialization of the thread register.  */
+#define TLS_VALUE (pd + 1)
+
+/* Get the real implementation.	 */
+#include <sysdeps/pthread/createthread.c>
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/fork.c b/sysdeps/unix/sysv/linux/aarch64/nptl/fork.c
new file mode 100644
index 0000000000..79a2ec5861
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/fork.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sched.h>
+#include <signal.h>
+#include <sysdep.h>
+#include <tls.h>
+
+
+#define ARCH_FORK()							\
+  INLINE_SYSCALL (clone, 5,						\
+		  CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD,	\
+		  NULL, NULL, NULL, &THREAD_SELF->tid)
+
+#include <sysdeps/unix/sysv/linux/fork.c>
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/ld.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/ld.abilist
new file mode 100644
index 0000000000..8629c4eac4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/ld.abilist
@@ -0,0 +1,12 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ __libc_memalign F
+ __libc_stack_end D 0x8
+ __stack_chk_guard D 0x8
+ __tls_get_addr F
+ _dl_mcount F
+ _r_debug D 0x28
+ calloc F
+ free F
+ malloc F
+ realloc F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libBrokenLocale.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libBrokenLocale.abilist
new file mode 100644
index 0000000000..92c43d9b79
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libBrokenLocale.abilist
@@ -0,0 +1,3 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ __ctype_get_mb_cur_max F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libanl.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libanl.abilist
new file mode 100644
index 0000000000..0d32f2ed47
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libanl.abilist
@@ -0,0 +1,6 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ gai_cancel F
+ gai_error F
+ gai_suspend F
+ getaddrinfo_a F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libc.abilist
new file mode 100644
index 0000000000..aeee312289
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libc.abilist
@@ -0,0 +1,2083 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ _Exit F
+ _IO_2_1_stderr_ D 0xe0
+ _IO_2_1_stdin_ D 0xe0
+ _IO_2_1_stdout_ D 0xe0
+ _IO_adjust_column F
+ _IO_adjust_wcolumn F
+ _IO_default_doallocate F
+ _IO_default_finish F
+ _IO_default_pbackfail F
+ _IO_default_uflow F
+ _IO_default_xsgetn F
+ _IO_default_xsputn F
+ _IO_do_write F
+ _IO_doallocbuf F
+ _IO_fclose F
+ _IO_fdopen F
+ _IO_feof F
+ _IO_ferror F
+ _IO_fflush F
+ _IO_fgetpos F
+ _IO_fgetpos64 F
+ _IO_fgets F
+ _IO_file_attach F
+ _IO_file_close F
+ _IO_file_close_it F
+ _IO_file_doallocate F
+ _IO_file_finish F
+ _IO_file_fopen F
+ _IO_file_init F
+ _IO_file_jumps D 0xa8
+ _IO_file_open F
+ _IO_file_overflow F
+ _IO_file_read F
+ _IO_file_seek F
+ _IO_file_seekoff F
+ _IO_file_setbuf F
+ _IO_file_stat F
+ _IO_file_sync F
+ _IO_file_underflow F
+ _IO_file_write F
+ _IO_file_xsputn F
+ _IO_flockfile F
+ _IO_flush_all F
+ _IO_flush_all_linebuffered F
+ _IO_fopen F
+ _IO_fprintf F
+ _IO_fputs F
+ _IO_fread F
+ _IO_free_backup_area F
+ _IO_free_wbackup_area F
+ _IO_fsetpos F
+ _IO_fsetpos64 F
+ _IO_ftell F
+ _IO_ftrylockfile F
+ _IO_funlockfile F
+ _IO_fwrite F
+ _IO_getc F
+ _IO_getline F
+ _IO_getline_info F
+ _IO_gets F
+ _IO_init F
+ _IO_init_marker F
+ _IO_init_wmarker F
+ _IO_iter_begin F
+ _IO_iter_end F
+ _IO_iter_file F
+ _IO_iter_next F
+ _IO_least_wmarker F
+ _IO_link_in F
+ _IO_list_all D 0x8
+ _IO_list_lock F
+ _IO_list_resetlock F
+ _IO_list_unlock F
+ _IO_marker_delta F
+ _IO_marker_difference F
+ _IO_padn F
+ _IO_peekc_locked F
+ _IO_popen F
+ _IO_printf F
+ _IO_proc_close F
+ _IO_proc_open F
+ _IO_putc F
+ _IO_puts F
+ _IO_remove_marker F
+ _IO_seekmark F
+ _IO_seekoff F
+ _IO_seekpos F
+ _IO_seekwmark F
+ _IO_setb F
+ _IO_setbuffer F
+ _IO_setvbuf F
+ _IO_sgetn F
+ _IO_sprintf F
+ _IO_sputbackc F
+ _IO_sputbackwc F
+ _IO_sscanf F
+ _IO_str_init_readonly F
+ _IO_str_init_static F
+ _IO_str_overflow F
+ _IO_str_pbackfail F
+ _IO_str_seekoff F
+ _IO_str_underflow F
+ _IO_sungetc F
+ _IO_sungetwc F
+ _IO_switch_to_get_mode F
+ _IO_switch_to_main_wget_area F
+ _IO_switch_to_wbackup_area F
+ _IO_switch_to_wget_mode F
+ _IO_un_link F
+ _IO_ungetc F
+ _IO_unsave_markers F
+ _IO_unsave_wmarkers F
+ _IO_vfprintf F
+ _IO_vfscanf F
+ _IO_vsprintf F
+ _IO_wdefault_doallocate F
+ _IO_wdefault_finish F
+ _IO_wdefault_pbackfail F
+ _IO_wdefault_uflow F
+ _IO_wdefault_xsgetn F
+ _IO_wdefault_xsputn F
+ _IO_wdo_write F
+ _IO_wdoallocbuf F
+ _IO_wfile_jumps D 0xa8
+ _IO_wfile_overflow F
+ _IO_wfile_seekoff F
+ _IO_wfile_sync F
+ _IO_wfile_underflow F
+ _IO_wfile_xsputn F
+ _IO_wmarker_delta F
+ _IO_wsetb F
+ ___brk_addr D 0x8
+ __adjtimex F
+ __after_morecore_hook D 0x8
+ __argz_count F
+ __argz_next F
+ __argz_stringify F
+ __asprintf F
+ __asprintf_chk F
+ __assert F
+ __assert_fail F
+ __assert_perror_fail F
+ __backtrace F
+ __backtrace_symbols F
+ __backtrace_symbols_fd F
+ __bsd_getpgrp F
+ __bzero F
+ __check_rhosts_file D 0x4
+ __chk_fail F
+ __clone F
+ __close F
+ __cmsg_nxthdr F
+ __confstr_chk F
+ __connect F
+ __ctype_b_loc F
+ __ctype_get_mb_cur_max F
+ __ctype_tolower_loc F
+ __ctype_toupper_loc F
+ __curbrk D 0x8
+ __cxa_at_quick_exit F
+ __cxa_atexit F
+ __cxa_finalize F
+ __cyg_profile_func_enter F
+ __cyg_profile_func_exit F
+ __daylight D 0x4
+ __dcgettext F
+ __default_morecore F
+ __dgettext F
+ __dprintf_chk F
+ __dup2 F
+ __duplocale F
+ __endmntent F
+ __environ D 0x8
+ __errno_location F
+ __fbufsize F
+ __fcntl F
+ __fdelt_chk F
+ __fdelt_warn F
+ __ffs F
+ __fgets_chk F
+ __fgets_unlocked_chk F
+ __fgetws_chk F
+ __fgetws_unlocked_chk F
+ __finite F
+ __finitef F
+ __finitel F
+ __flbf F
+ __fork F
+ __fpending F
+ __fprintf_chk F
+ __fpu_control D 0x4
+ __fpurge F
+ __fread_chk F
+ __fread_unlocked_chk F
+ __freadable F
+ __freading F
+ __free_hook D 0x8
+ __freelocale F
+ __fsetlocking F
+ __fwprintf_chk F
+ __fwritable F
+ __fwriting F
+ __fxstat F
+ __fxstat64 F
+ __fxstatat F
+ __fxstatat64 F
+ __getauxval F
+ __getcwd_chk F
+ __getdelim F
+ __getdomainname_chk F
+ __getgroups_chk F
+ __gethostname_chk F
+ __getlogin_r_chk F
+ __getmntent_r F
+ __getpagesize F
+ __getpgid F
+ __getpid F
+ __gets_chk F
+ __gettimeofday F
+ __getwd_chk F
+ __gmtime_r F
+ __h_errno_location F
+ __isalnum_l F
+ __isalpha_l F
+ __isascii_l F
+ __isblank_l F
+ __iscntrl_l F
+ __isctype F
+ __isdigit_l F
+ __isgraph_l F
+ __isinf F
+ __isinff F
+ __isinfl F
+ __islower_l F
+ __isnan F
+ __isnanf F
+ __isnanl F
+ __isoc99_fscanf F
+ __isoc99_fwscanf F
+ __isoc99_scanf F
+ __isoc99_sscanf F
+ __isoc99_swscanf F
+ __isoc99_vfscanf F
+ __isoc99_vfwscanf F
+ __isoc99_vscanf F
+ __isoc99_vsscanf F
+ __isoc99_vswscanf F
+ __isoc99_vwscanf F
+ __isoc99_wscanf F
+ __isprint_l F
+ __ispunct_l F
+ __isspace_l F
+ __isupper_l F
+ __iswalnum_l F
+ __iswalpha_l F
+ __iswblank_l F
+ __iswcntrl_l F
+ __iswctype F
+ __iswctype_l F
+ __iswdigit_l F
+ __iswgraph_l F
+ __iswlower_l F
+ __iswprint_l F
+ __iswpunct_l F
+ __iswspace_l F
+ __iswupper_l F
+ __iswxdigit_l F
+ __isxdigit_l F
+ __ivaliduser F
+ __key_decryptsession_pk_LOCAL D 0x8
+ __key_encryptsession_pk_LOCAL D 0x8
+ __key_gendes_LOCAL D 0x8
+ __libc_allocate_rtsig F
+ __libc_calloc F
+ __libc_current_sigrtmax F
+ __libc_current_sigrtmin F
+ __libc_free F
+ __libc_freeres F
+ __libc_init_first F
+ __libc_mallinfo F
+ __libc_malloc F
+ __libc_mallopt F
+ __libc_memalign F
+ __libc_pvalloc F
+ __libc_realloc F
+ __libc_sa_len F
+ __libc_start_main F
+ __libc_valloc F
+ __longjmp_chk F
+ __lseek F
+ __lxstat F
+ __lxstat64 F
+ __malloc_hook D 0x8
+ __malloc_initialize_hook D 0x8
+ __mbrlen F
+ __mbrtowc F
+ __mbsnrtowcs_chk F
+ __mbsrtowcs_chk F
+ __mbstowcs_chk F
+ __memalign_hook D 0x8
+ __memcpy_chk F
+ __memmove_chk F
+ __mempcpy F
+ __mempcpy_chk F
+ __mempcpy_small F
+ __memset_chk F
+ __monstartup F
+ __morecore D 0x8
+ __nanosleep F
+ __newlocale F
+ __nl_langinfo_l F
+ __nss_configure_lookup F
+ __nss_database_lookup F
+ __nss_group_lookup F
+ __nss_hostname_digits_dots F
+ __nss_hosts_lookup F
+ __nss_next F
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+ munlock F
+ munlockall F
+ munmap F
+ muntrace F
+ name_to_handle_at F
+ nanosleep F
+ netname2host F
+ netname2user F
+ newlocale F
+ nfsservctl F
+ nftw F
+ nftw64 F
+ ngettext F
+ nice F
+ nl_langinfo F
+ nl_langinfo_l F
+ nrand48 F
+ nrand48_r F
+ ntohl F
+ ntohs F
+ ntp_adjtime F
+ ntp_gettime F
+ ntp_gettimex F
+ obstack_alloc_failed_handler D 0x8
+ obstack_exit_failure D 0x4
+ obstack_free F
+ obstack_printf F
+ obstack_vprintf F
+ on_exit F
+ open F
+ open64 F
+ open_by_handle_at F
+ open_memstream F
+ open_wmemstream F
+ openat F
+ openat64 F
+ opendir F
+ openlog F
+ optarg D 0x8
+ opterr D 0x4
+ optind D 0x4
+ optopt D 0x4
+ parse_printf_format F
+ passwd2des F
+ pathconf F
+ pause F
+ pclose F
+ perror F
+ personality F
+ pipe F
+ pipe2 F
+ pivot_root F
+ pmap_getmaps F
+ pmap_getport F
+ pmap_rmtcall F
+ pmap_set F
+ pmap_unset F
+ poll F
+ popen F
+ posix_fadvise F
+ posix_fadvise64 F
+ posix_fallocate F
+ posix_fallocate64 F
+ posix_madvise F
+ posix_memalign F
+ posix_openpt F
+ posix_spawn F
+ posix_spawn_file_actions_addclose F
+ posix_spawn_file_actions_adddup2 F
+ posix_spawn_file_actions_addopen F
+ posix_spawn_file_actions_destroy F
+ posix_spawn_file_actions_init F
+ posix_spawnattr_destroy F
+ posix_spawnattr_getflags F
+ posix_spawnattr_getpgroup F
+ posix_spawnattr_getschedparam F
+ posix_spawnattr_getschedpolicy F
+ posix_spawnattr_getsigdefault F
+ posix_spawnattr_getsigmask F
+ posix_spawnattr_init F
+ posix_spawnattr_setflags F
+ posix_spawnattr_setpgroup F
+ posix_spawnattr_setschedparam F
+ posix_spawnattr_setschedpolicy F
+ posix_spawnattr_setsigdefault F
+ posix_spawnattr_setsigmask F
+ posix_spawnp F
+ ppoll F
+ prctl F
+ pread F
+ pread64 F
+ preadv F
+ preadv64 F
+ printf F
+ printf_size F
+ printf_size_info F
+ prlimit F
+ prlimit64 F
+ process_vm_readv F
+ process_vm_writev F
+ profil F
+ program_invocation_name D 0x8
+ program_invocation_short_name D 0x8
+ pselect F
+ psiginfo F
+ psignal F
+ pthread_attr_destroy F
+ pthread_attr_getdetachstate F
+ pthread_attr_getinheritsched F
+ pthread_attr_getschedparam F
+ pthread_attr_getschedpolicy F
+ pthread_attr_getscope F
+ pthread_attr_init F
+ pthread_attr_setdetachstate F
+ pthread_attr_setinheritsched F
+ pthread_attr_setschedparam F
+ pthread_attr_setschedpolicy F
+ pthread_attr_setscope F
+ pthread_cond_broadcast F
+ pthread_cond_destroy F
+ pthread_cond_init F
+ pthread_cond_signal F
+ pthread_cond_timedwait F
+ pthread_cond_wait F
+ pthread_condattr_destroy F
+ pthread_condattr_init F
+ pthread_equal F
+ pthread_exit F
+ pthread_getschedparam F
+ pthread_mutex_destroy F
+ pthread_mutex_init F
+ pthread_mutex_lock F
+ pthread_mutex_unlock F
+ pthread_self F
+ pthread_setcancelstate F
+ pthread_setcanceltype F
+ pthread_setschedparam F
+ ptrace F
+ ptsname F
+ ptsname_r F
+ putc F
+ putc_unlocked F
+ putchar F
+ putchar_unlocked F
+ putenv F
+ putgrent F
+ putmsg F
+ putpmsg F
+ putpwent F
+ puts F
+ putsgent F
+ putspent F
+ pututline F
+ pututxline F
+ putw F
+ putwc F
+ putwc_unlocked F
+ putwchar F
+ putwchar_unlocked F
+ pvalloc F
+ pwrite F
+ pwrite64 F
+ pwritev F
+ pwritev64 F
+ qecvt F
+ qecvt_r F
+ qfcvt F
+ qfcvt_r F
+ qgcvt F
+ qsort F
+ qsort_r F
+ query_module F
+ quick_exit F
+ quotactl F
+ raise F
+ rand F
+ rand_r F
+ random F
+ random_r F
+ rawmemchr F
+ rcmd F
+ rcmd_af F
+ re_comp F
+ re_compile_fastmap F
+ re_compile_pattern F
+ re_exec F
+ re_match F
+ re_match_2 F
+ re_search F
+ re_search_2 F
+ re_set_registers F
+ re_set_syntax F
+ re_syntax_options D 0x8
+ read F
+ readahead F
+ readdir F
+ readdir64 F
+ readdir64_r F
+ readdir_r F
+ readlink F
+ readlinkat F
+ readv F
+ realloc F
+ realpath F
+ reboot F
+ recv F
+ recvfrom F
+ recvmmsg F
+ recvmsg F
+ regcomp F
+ regerror F
+ regexec F
+ regfree F
+ register_printf_function F
+ register_printf_modifier F
+ register_printf_specifier F
+ register_printf_type F
+ registerrpc F
+ remap_file_pages F
+ remove F
+ removexattr F
+ remque F
+ rename F
+ renameat F
+ revoke F
+ rewind F
+ rewinddir F
+ rexec F
+ rexec_af F
+ rexecoptions D 0x4
+ rindex F
+ rmdir F
+ rpc_createerr D 0x20
+ rpmatch F
+ rresvport F
+ rresvport_af F
+ rtime F
+ ruserok F
+ ruserok_af F
+ ruserpass F
+ sbrk F
+ scalbn F
+ scalbnf F
+ scalbnl F
+ scandir F
+ scandir64 F
+ scandirat F
+ scandirat64 F
+ scanf F
+ sched_get_priority_max F
+ sched_get_priority_min F
+ sched_getaffinity F
+ sched_getcpu F
+ sched_getparam F
+ sched_getscheduler F
+ sched_rr_get_interval F
+ sched_setaffinity F
+ sched_setparam F
+ sched_setscheduler F
+ sched_yield F
+ secure_getenv F
+ seed48 F
+ seed48_r F
+ seekdir F
+ select F
+ semctl F
+ semget F
+ semop F
+ semtimedop F
+ send F
+ sendfile F
+ sendfile64 F
+ sendmmsg F
+ sendmsg F
+ sendto F
+ setaliasent F
+ setbuf F
+ setbuffer F
+ setcontext F
+ setdomainname F
+ setegid F
+ setenv F
+ seteuid F
+ setfsent F
+ setfsgid F
+ setfsuid F
+ setgid F
+ setgrent F
+ setgroups F
+ sethostent F
+ sethostid F
+ sethostname F
+ setipv4sourcefilter F
+ setitimer F
+ setjmp F
+ setlinebuf F
+ setlocale F
+ setlogin F
+ setlogmask F
+ setmntent F
+ setnetent F
+ setnetgrent F
+ setns F
+ setpgid F
+ setpgrp F
+ setpriority F
+ setprotoent F
+ setpwent F
+ setregid F
+ setresgid F
+ setresuid F
+ setreuid F
+ setrlimit F
+ setrlimit64 F
+ setrpcent F
+ setservent F
+ setsgent F
+ setsid F
+ setsockopt F
+ setsourcefilter F
+ setspent F
+ setstate F
+ setstate_r F
+ settimeofday F
+ setttyent F
+ setuid F
+ setusershell F
+ setutent F
+ setutxent F
+ setvbuf F
+ setxattr F
+ sgetsgent F
+ sgetsgent_r F
+ sgetspent F
+ sgetspent_r F
+ shmat F
+ shmctl F
+ shmdt F
+ shmget F
+ shutdown F
+ sigaction F
+ sigaddset F
+ sigaltstack F
+ sigandset F
+ sigblock F
+ sigdelset F
+ sigemptyset F
+ sigfillset F
+ siggetmask F
+ sighold F
+ sigignore F
+ siginterrupt F
+ sigisemptyset F
+ sigismember F
+ siglongjmp F
+ signal F
+ signalfd F
+ sigorset F
+ sigpause F
+ sigpending F
+ sigprocmask F
+ sigqueue F
+ sigrelse F
+ sigreturn F
+ sigset F
+ sigsetmask F
+ sigstack F
+ sigsuspend F
+ sigtimedwait F
+ sigvec F
+ sigwait F
+ sigwaitinfo F
+ sleep F
+ snprintf F
+ sockatmark F
+ socket F
+ socketpair F
+ splice F
+ sprintf F
+ sprofil F
+ srand F
+ srand48 F
+ srand48_r F
+ srandom F
+ srandom_r F
+ sscanf F
+ ssignal F
+ sstk F
+ statfs F
+ statfs64 F
+ statvfs F
+ statvfs64 F
+ stderr D 0x8
+ stdin D 0x8
+ stdout D 0x8
+ step F
+ stime F
+ stpcpy F
+ stpncpy F
+ strcasecmp F
+ strcasecmp_l F
+ strcasestr F
+ strcat F
+ strchr F
+ strchrnul F
+ strcmp F
+ strcoll F
+ strcoll_l F
+ strcpy F
+ strcspn F
+ strdup F
+ strerror F
+ strerror_l F
+ strerror_r F
+ strfmon F
+ strfmon_l F
+ strfry F
+ strftime F
+ strftime_l F
+ strlen F
+ strncasecmp F
+ strncasecmp_l F
+ strncat F
+ strncmp F
+ strncpy F
+ strndup F
+ strnlen F
+ strpbrk F
+ strptime F
+ strptime_l F
+ strrchr F
+ strsep F
+ strsignal F
+ strspn F
+ strstr F
+ strtod F
+ strtod_l F
+ strtof F
+ strtof_l F
+ strtoimax F
+ strtok F
+ strtok_r F
+ strtol F
+ strtol_l F
+ strtold F
+ strtold_l F
+ strtoll F
+ strtoll_l F
+ strtoq F
+ strtoul F
+ strtoul_l F
+ strtoull F
+ strtoull_l F
+ strtoumax F
+ strtouq F
+ strverscmp F
+ strxfrm F
+ strxfrm_l F
+ stty F
+ svc_exit F
+ svc_fdset D 0x80
+ svc_getreq F
+ svc_getreq_common F
+ svc_getreq_poll F
+ svc_getreqset F
+ svc_max_pollfd D 0x4
+ svc_pollfd D 0x8
+ svc_register F
+ svc_run F
+ svc_sendreply F
+ svc_unregister F
+ svcauthdes_stats D 0x18
+ svcerr_auth F
+ svcerr_decode F
+ svcerr_noproc F
+ svcerr_noprog F
+ svcerr_progvers F
+ svcerr_systemerr F
+ svcerr_weakauth F
+ svcfd_create F
+ svcraw_create F
+ svctcp_create F
+ svcudp_bufcreate F
+ svcudp_create F
+ svcudp_enablecache F
+ svcunix_create F
+ svcunixfd_create F
+ swab F
+ swapcontext F
+ swapoff F
+ swapon F
+ swprintf F
+ swscanf F
+ symlink F
+ symlinkat F
+ sync F
+ sync_file_range F
+ syncfs F
+ sys_errlist D 0x438
+ sys_nerr D 0x4
+ sys_sigabbrev D 0x208
+ sys_siglist D 0x208
+ syscall F
+ sysconf F
+ sysctl F
+ sysinfo F
+ syslog F
+ system F
+ sysv_signal F
+ tcdrain F
+ tcflow F
+ tcflush F
+ tcgetattr F
+ tcgetpgrp F
+ tcgetsid F
+ tcsendbreak F
+ tcsetattr F
+ tcsetpgrp F
+ tdelete F
+ tdestroy F
+ tee F
+ telldir F
+ tempnam F
+ textdomain F
+ tfind F
+ time F
+ timegm F
+ timelocal F
+ timerfd_create F
+ timerfd_gettime F
+ timerfd_settime F
+ times F
+ timespec_get F
+ timezone D 0x8
+ tmpfile F
+ tmpfile64 F
+ tmpnam F
+ tmpnam_r F
+ toascii F
+ tolower F
+ tolower_l F
+ toupper F
+ toupper_l F
+ towctrans F
+ towctrans_l F
+ towlower F
+ towlower_l F
+ towupper F
+ towupper_l F
+ tr_break F
+ truncate F
+ truncate64 F
+ tsearch F
+ ttyname F
+ ttyname_r F
+ ttyslot F
+ twalk F
+ tzname D 0x10
+ tzset F
+ ualarm F
+ ulckpwdf F
+ ulimit F
+ umask F
+ umount F
+ umount2 F
+ uname F
+ ungetc F
+ ungetwc F
+ unlink F
+ unlinkat F
+ unlockpt F
+ unsetenv F
+ unshare F
+ updwtmp F
+ updwtmpx F
+ uselib F
+ uselocale F
+ user2netname F
+ usleep F
+ ustat F
+ utime F
+ utimensat F
+ utimes F
+ utmpname F
+ utmpxname F
+ valloc F
+ vasprintf F
+ vdprintf F
+ verr F
+ verrx F
+ versionsort F
+ versionsort64 F
+ vfork F
+ vfprintf F
+ vfscanf F
+ vfwprintf F
+ vfwscanf F
+ vhangup F
+ vlimit F
+ vmsplice F
+ vprintf F
+ vscanf F
+ vsnprintf F
+ vsprintf F
+ vsscanf F
+ vswprintf F
+ vswscanf F
+ vsyslog F
+ vtimes F
+ vwarn F
+ vwarnx F
+ vwprintf F
+ vwscanf F
+ wait F
+ wait3 F
+ wait4 F
+ waitid F
+ waitpid F
+ warn F
+ warnx F
+ wcpcpy F
+ wcpncpy F
+ wcrtomb F
+ wcscasecmp F
+ wcscasecmp_l F
+ wcscat F
+ wcschr F
+ wcschrnul F
+ wcscmp F
+ wcscoll F
+ wcscoll_l F
+ wcscpy F
+ wcscspn F
+ wcsdup F
+ wcsftime F
+ wcsftime_l F
+ wcslen F
+ wcsncasecmp F
+ wcsncasecmp_l F
+ wcsncat F
+ wcsncmp F
+ wcsncpy F
+ wcsnlen F
+ wcsnrtombs F
+ wcspbrk F
+ wcsrchr F
+ wcsrtombs F
+ wcsspn F
+ wcsstr F
+ wcstod F
+ wcstod_l F
+ wcstof F
+ wcstof_l F
+ wcstoimax F
+ wcstok F
+ wcstol F
+ wcstol_l F
+ wcstold F
+ wcstold_l F
+ wcstoll F
+ wcstoll_l F
+ wcstombs F
+ wcstoq F
+ wcstoul F
+ wcstoul_l F
+ wcstoull F
+ wcstoull_l F
+ wcstoumax F
+ wcstouq F
+ wcswcs F
+ wcswidth F
+ wcsxfrm F
+ wcsxfrm_l F
+ wctob F
+ wctomb F
+ wctrans F
+ wctrans_l F
+ wctype F
+ wctype_l F
+ wcwidth F
+ wmemchr F
+ wmemcmp F
+ wmemcpy F
+ wmemmove F
+ wmempcpy F
+ wmemset F
+ wordexp F
+ wordfree F
+ wprintf F
+ write F
+ writev F
+ wscanf F
+ xdecrypt F
+ xdr_accepted_reply F
+ xdr_array F
+ xdr_authdes_cred F
+ xdr_authdes_verf F
+ xdr_authunix_parms F
+ xdr_bool F
+ xdr_bytes F
+ xdr_callhdr F
+ xdr_callmsg F
+ xdr_char F
+ xdr_cryptkeyarg F
+ xdr_cryptkeyarg2 F
+ xdr_cryptkeyres F
+ xdr_des_block F
+ xdr_double F
+ xdr_enum F
+ xdr_float F
+ xdr_free F
+ xdr_getcredres F
+ xdr_hyper F
+ xdr_int F
+ xdr_int16_t F
+ xdr_int32_t F
+ xdr_int64_t F
+ xdr_int8_t F
+ xdr_key_netstarg F
+ xdr_key_netstres F
+ xdr_keybuf F
+ xdr_keystatus F
+ xdr_long F
+ xdr_longlong_t F
+ xdr_netnamestr F
+ xdr_netobj F
+ xdr_opaque F
+ xdr_opaque_auth F
+ xdr_pmap F
+ xdr_pmaplist F
+ xdr_pointer F
+ xdr_quad_t F
+ xdr_reference F
+ xdr_rejected_reply F
+ xdr_replymsg F
+ xdr_rmtcall_args F
+ xdr_rmtcallres F
+ xdr_short F
+ xdr_sizeof F
+ xdr_string F
+ xdr_u_char F
+ xdr_u_hyper F
+ xdr_u_int F
+ xdr_u_long F
+ xdr_u_longlong_t F
+ xdr_u_quad_t F
+ xdr_u_short F
+ xdr_uint16_t F
+ xdr_uint32_t F
+ xdr_uint64_t F
+ xdr_uint8_t F
+ xdr_union F
+ xdr_unixcred F
+ xdr_vector F
+ xdr_void F
+ xdr_wrapstring F
+ xdrmem_create F
+ xdrrec_create F
+ xdrrec_endofrecord F
+ xdrrec_eof F
+ xdrrec_skiprecord F
+ xdrstdio_create F
+ xencrypt F
+ xprt_register F
+ xprt_unregister F
+GLIBC_2.18
+ GLIBC_2.18 A
+ __cxa_thread_atexit_impl F
+ _mcount F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libcrypt.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libcrypt.abilist
new file mode 100644
index 0000000000..177c536209
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libcrypt.abilist
@@ -0,0 +1,9 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ crypt F
+ crypt_r F
+ encrypt F
+ encrypt_r F
+ fcrypt F
+ setkey F
+ setkey_r F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libdl.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libdl.abilist
new file mode 100644
index 0000000000..6caff88266
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libdl.abilist
@@ -0,0 +1,11 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ dladdr F
+ dladdr1 F
+ dlclose F
+ dlerror F
+ dlinfo F
+ dlmopen F
+ dlopen F
+ dlsym F
+ dlvsym F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libm.abilist
new file mode 100644
index 0000000000..0f1cfc8702
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libm.abilist
@@ -0,0 +1,402 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ _LIB_VERSION D 0x4
+ __acos_finite F
+ __acosf_finite F
+ __acosh_finite F
+ __acoshf_finite F
+ __acoshl_finite F
+ __acosl_finite F
+ __asin_finite F
+ __asinf_finite F
+ __asinl_finite F
+ __atan2_finite F
+ __atan2f_finite F
+ __atan2l_finite F
+ __atanh_finite F
+ __atanhf_finite F
+ __atanhl_finite F
+ __clog10 F
+ __clog10f F
+ __clog10l F
+ __cosh_finite F
+ __coshf_finite F
+ __coshl_finite F
+ __exp10_finite F
+ __exp10f_finite F
+ __exp10l_finite F
+ __exp2_finite F
+ __exp2f_finite F
+ __exp2l_finite F
+ __exp_finite F
+ __expf_finite F
+ __expl_finite F
+ __finite F
+ __finitef F
+ __finitel F
+ __fmod_finite F
+ __fmodf_finite F
+ __fmodl_finite F
+ __fpclassify F
+ __fpclassifyf F
+ __fpclassifyl F
+ __gamma_r_finite F
+ __gammaf_r_finite F
+ __gammal_r_finite F
+ __hypot_finite F
+ __hypotf_finite F
+ __hypotl_finite F
+ __j0_finite F
+ __j0f_finite F
+ __j0l_finite F
+ __j1_finite F
+ __j1f_finite F
+ __j1l_finite F
+ __jn_finite F
+ __jnf_finite F
+ __jnl_finite F
+ __lgamma_r_finite F
+ __lgammaf_r_finite F
+ __lgammal_r_finite F
+ __log10_finite F
+ __log10f_finite F
+ __log10l_finite F
+ __log2_finite F
+ __log2f_finite F
+ __log2l_finite F
+ __log_finite F
+ __logf_finite F
+ __logl_finite F
+ __pow_finite F
+ __powf_finite F
+ __powl_finite F
+ __remainder_finite F
+ __remainderf_finite F
+ __remainderl_finite F
+ __scalb_finite F
+ __scalbf_finite F
+ __scalbl_finite F
+ __signbit F
+ __signbitf F
+ __signbitl F
+ __sinh_finite F
+ __sinhf_finite F
+ __sinhl_finite F
+ __sqrt_finite F
+ __sqrtf_finite F
+ __sqrtl_finite F
+ __y0_finite F
+ __y0f_finite F
+ __y0l_finite F
+ __y1_finite F
+ __y1f_finite F
+ __y1l_finite F
+ __yn_finite F
+ __ynf_finite F
+ __ynl_finite F
+ acos F
+ acosf F
+ acosh F
+ acoshf F
+ acoshl F
+ acosl F
+ asin F
+ asinf F
+ asinh F
+ asinhf F
+ asinhl F
+ asinl F
+ atan F
+ atan2 F
+ atan2f F
+ atan2l F
+ atanf F
+ atanh F
+ atanhf F
+ atanhl F
+ atanl F
+ cabs F
+ cabsf F
+ cabsl F
+ cacos F
+ cacosf F
+ cacosh F
+ cacoshf F
+ cacoshl F
+ cacosl F
+ carg F
+ cargf F
+ cargl F
+ casin F
+ casinf F
+ casinh F
+ casinhf F
+ casinhl F
+ casinl F
+ catan F
+ catanf F
+ catanh F
+ catanhf F
+ catanhl F
+ catanl F
+ cbrt F
+ cbrtf F
+ cbrtl F
+ ccos F
+ ccosf F
+ ccosh F
+ ccoshf F
+ ccoshl F
+ ccosl F
+ ceil F
+ ceilf F
+ ceill F
+ cexp F
+ cexpf F
+ cexpl F
+ cimag F
+ cimagf F
+ cimagl F
+ clog F
+ clog10 F
+ clog10f F
+ clog10l F
+ clogf F
+ clogl F
+ conj F
+ conjf F
+ conjl F
+ copysign F
+ copysignf F
+ copysignl F
+ cos F
+ cosf F
+ cosh F
+ coshf F
+ coshl F
+ cosl F
+ cpow F
+ cpowf F
+ cpowl F
+ cproj F
+ cprojf F
+ cprojl F
+ creal F
+ crealf F
+ creall F
+ csin F
+ csinf F
+ csinh F
+ csinhf F
+ csinhl F
+ csinl F
+ csqrt F
+ csqrtf F
+ csqrtl F
+ ctan F
+ ctanf F
+ ctanh F
+ ctanhf F
+ ctanhl F
+ ctanl F
+ drem F
+ dremf F
+ dreml F
+ erf F
+ erfc F
+ erfcf F
+ erfcl F
+ erff F
+ erfl F
+ exp F
+ exp10 F
+ exp10f F
+ exp10l F
+ exp2 F
+ exp2f F
+ exp2l F
+ expf F
+ expl F
+ expm1 F
+ expm1f F
+ expm1l F
+ fabs F
+ fabsf F
+ fabsl F
+ fdim F
+ fdimf F
+ fdiml F
+ feclearexcept F
+ fedisableexcept F
+ feenableexcept F
+ fegetenv F
+ fegetexcept F
+ fegetexceptflag F
+ fegetround F
+ feholdexcept F
+ feraiseexcept F
+ fesetenv F
+ fesetexceptflag F
+ fesetround F
+ fetestexcept F
+ feupdateenv F
+ finite F
+ finitef F
+ finitel F
+ floor F
+ floorf F
+ floorl F
+ fma F
+ fmaf F
+ fmal F
+ fmax F
+ fmaxf F
+ fmaxl F
+ fmin F
+ fminf F
+ fminl F
+ fmod F
+ fmodf F
+ fmodl F
+ frexp F
+ frexpf F
+ frexpl F
+ gamma F
+ gammaf F
+ gammal F
+ hypot F
+ hypotf F
+ hypotl F
+ ilogb F
+ ilogbf F
+ ilogbl F
+ j0 F
+ j0f F
+ j0l F
+ j1 F
+ j1f F
+ j1l F
+ jn F
+ jnf F
+ jnl F
+ ldexp F
+ ldexpf F
+ ldexpl F
+ lgamma F
+ lgamma_r F
+ lgammaf F
+ lgammaf_r F
+ lgammal F
+ lgammal_r F
+ llrint F
+ llrintf F
+ llrintl F
+ llround F
+ llroundf F
+ llroundl F
+ log F
+ log10 F
+ log10f F
+ log10l F
+ log1p F
+ log1pf F
+ log1pl F
+ log2 F
+ log2f F
+ log2l F
+ logb F
+ logbf F
+ logbl F
+ logf F
+ logl F
+ lrint F
+ lrintf F
+ lrintl F
+ lround F
+ lroundf F
+ lroundl F
+ matherr F
+ modf F
+ modff F
+ modfl F
+ nan F
+ nanf F
+ nanl F
+ nearbyint F
+ nearbyintf F
+ nearbyintl F
+ nextafter F
+ nextafterf F
+ nextafterl F
+ nexttoward F
+ nexttowardf F
+ nexttowardl F
+ pow F
+ pow10 F
+ pow10f F
+ pow10l F
+ powf F
+ powl F
+ remainder F
+ remainderf F
+ remainderl F
+ remquo F
+ remquof F
+ remquol F
+ rint F
+ rintf F
+ rintl F
+ round F
+ roundf F
+ roundl F
+ scalb F
+ scalbf F
+ scalbl F
+ scalbln F
+ scalblnf F
+ scalblnl F
+ scalbn F
+ scalbnf F
+ scalbnl F
+ signgam D 0x4
+ significand F
+ significandf F
+ significandl F
+ sin F
+ sincos F
+ sincosf F
+ sincosl F
+ sinf F
+ sinh F
+ sinhf F
+ sinhl F
+ sinl F
+ sqrt F
+ sqrtf F
+ sqrtl F
+ tan F
+ tanf F
+ tanh F
+ tanhf F
+ tanhl F
+ tanl F
+ tgamma F
+ tgammaf F
+ tgammal F
+ trunc F
+ truncf F
+ truncl F
+ y0 F
+ y0f F
+ y0l F
+ y1 F
+ y1f F
+ y1l F
+ yn F
+ ynf F
+ ynl F
+GLIBC_2.18
+ GLIBC_2.18 A
+ __issignaling F
+ __issignalingf F
+ __issignalingl F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libnsl.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libnsl.abilist
new file mode 100644
index 0000000000..763b8dc166
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libnsl.abilist
@@ -0,0 +1,123 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ __free_fdresult F
+ __nis_default_access F
+ __nis_default_group F
+ __nis_default_owner F
+ __nis_default_ttl F
+ __nis_finddirectory F
+ __nis_hash F
+ __nisbind_connect F
+ __nisbind_create F
+ __nisbind_destroy F
+ __nisbind_next F
+ __yp_check F
+ nis_add F
+ nis_add_entry F
+ nis_addmember F
+ nis_checkpoint F
+ nis_clone_directory F
+ nis_clone_object F
+ nis_clone_result F
+ nis_creategroup F
+ nis_destroy_object F
+ nis_destroygroup F
+ nis_dir_cmp F
+ nis_domain_of F
+ nis_domain_of_r F
+ nis_first_entry F
+ nis_free_directory F
+ nis_free_object F
+ nis_free_request F
+ nis_freenames F
+ nis_freeresult F
+ nis_freeservlist F
+ nis_freetags F
+ nis_getnames F
+ nis_getservlist F
+ nis_ismember F
+ nis_leaf_of F
+ nis_leaf_of_r F
+ nis_lerror F
+ nis_list F
+ nis_local_directory F
+ nis_local_group F
+ nis_local_host F
+ nis_local_principal F
+ nis_lookup F
+ nis_mkdir F
+ nis_modify F
+ nis_modify_entry F
+ nis_name_of F
+ nis_name_of_r F
+ nis_next_entry F
+ nis_perror F
+ nis_ping F
+ nis_print_directory F
+ nis_print_entry F
+ nis_print_group F
+ nis_print_group_entry F
+ nis_print_link F
+ nis_print_object F
+ nis_print_result F
+ nis_print_rights F
+ nis_print_table F
+ nis_read_obj F
+ nis_remove F
+ nis_remove_entry F
+ nis_removemember F
+ nis_rmdir F
+ nis_servstate F
+ nis_sperrno F
+ nis_sperror F
+ nis_sperror_r F
+ nis_stats F
+ nis_verifygroup F
+ nis_write_obj F
+ readColdStartFile F
+ writeColdStartFile F
+ xdr_cback_data F
+ xdr_domainname F
+ xdr_keydat F
+ xdr_mapname F
+ xdr_obj_p F
+ xdr_peername F
+ xdr_valdat F
+ xdr_yp_buf F
+ xdr_ypall F
+ xdr_ypbind_binding F
+ xdr_ypbind_resp F
+ xdr_ypbind_resptype F
+ xdr_ypbind_setdom F
+ xdr_ypdelete_args F
+ xdr_ypmap_parms F
+ xdr_ypmaplist F
+ xdr_yppush_status F
+ xdr_yppushresp_xfr F
+ xdr_ypreq_key F
+ xdr_ypreq_nokey F
+ xdr_ypreq_xfr F
+ xdr_ypresp_all F
+ xdr_ypresp_key_val F
+ xdr_ypresp_maplist F
+ xdr_ypresp_master F
+ xdr_ypresp_order F
+ xdr_ypresp_val F
+ xdr_ypresp_xfr F
+ xdr_ypstat F
+ xdr_ypupdate_args F
+ xdr_ypxfrstat F
+ yp_all F
+ yp_bind F
+ yp_first F
+ yp_get_default_domain F
+ yp_maplist F
+ yp_master F
+ yp_match F
+ yp_next F
+ yp_order F
+ yp_unbind F
+ yp_update F
+ ypbinderr_string F
+ yperr_string F
+ ypprot_err F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist
new file mode 100644
index 0000000000..5520312635
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libpthread.abilist
@@ -0,0 +1,228 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ _IO_flockfile F
+ _IO_ftrylockfile F
+ _IO_funlockfile F
+ __close F
+ __connect F
+ __errno_location F
+ __fcntl F
+ __fork F
+ __h_errno_location F
+ __libc_allocate_rtsig F
+ __libc_current_sigrtmax F
+ __libc_current_sigrtmin F
+ __lseek F
+ __nanosleep F
+ __open F
+ __open64 F
+ __pread64 F
+ __pthread_cleanup_routine F
+ __pthread_getspecific F
+ __pthread_key_create F
+ __pthread_mutex_destroy F
+ __pthread_mutex_init F
+ __pthread_mutex_lock F
+ __pthread_mutex_trylock F
+ __pthread_mutex_unlock F
+ __pthread_mutexattr_destroy F
+ __pthread_mutexattr_init F
+ __pthread_mutexattr_settype F
+ __pthread_once F
+ __pthread_register_cancel F
+ __pthread_register_cancel_defer F
+ __pthread_rwlock_destroy F
+ __pthread_rwlock_init F
+ __pthread_rwlock_rdlock F
+ __pthread_rwlock_tryrdlock F
+ __pthread_rwlock_trywrlock F
+ __pthread_rwlock_unlock F
+ __pthread_rwlock_wrlock F
+ __pthread_setspecific F
+ __pthread_unregister_cancel F
+ __pthread_unregister_cancel_restore F
+ __pthread_unwind_next F
+ __pwrite64 F
+ __read F
+ __res_state F
+ __send F
+ __sigaction F
+ __vfork F
+ __wait F
+ __write F
+ _pthread_cleanup_pop F
+ _pthread_cleanup_pop_restore F
+ _pthread_cleanup_push F
+ _pthread_cleanup_push_defer F
+ accept F
+ close F
+ connect F
+ fcntl F
+ flockfile F
+ fork F
+ fsync F
+ ftrylockfile F
+ funlockfile F
+ longjmp F
+ lseek F
+ lseek64 F
+ msync F
+ nanosleep F
+ open F
+ open64 F
+ pause F
+ pread F
+ pread64 F
+ pthread_attr_destroy F
+ pthread_attr_getaffinity_np F
+ pthread_attr_getdetachstate F
+ pthread_attr_getguardsize F
+ pthread_attr_getinheritsched F
+ pthread_attr_getschedparam F
+ pthread_attr_getschedpolicy F
+ pthread_attr_getscope F
+ pthread_attr_getstack F
+ pthread_attr_getstackaddr F
+ pthread_attr_getstacksize F
+ pthread_attr_init F
+ pthread_attr_setaffinity_np F
+ pthread_attr_setdetachstate F
+ pthread_attr_setguardsize F
+ pthread_attr_setinheritsched F
+ pthread_attr_setschedparam F
+ pthread_attr_setschedpolicy F
+ pthread_attr_setscope F
+ pthread_attr_setstack F
+ pthread_attr_setstackaddr F
+ pthread_attr_setstacksize F
+ pthread_barrier_destroy F
+ pthread_barrier_init F
+ pthread_barrier_wait F
+ pthread_barrierattr_destroy F
+ pthread_barrierattr_getpshared F
+ pthread_barrierattr_init F
+ pthread_barrierattr_setpshared F
+ pthread_cancel F
+ pthread_cond_broadcast F
+ pthread_cond_destroy F
+ pthread_cond_init F
+ pthread_cond_signal F
+ pthread_cond_timedwait F
+ pthread_cond_wait F
+ pthread_condattr_destroy F
+ pthread_condattr_getclock F
+ pthread_condattr_getpshared F
+ pthread_condattr_init F
+ pthread_condattr_setclock F
+ pthread_condattr_setpshared F
+ pthread_create F
+ pthread_detach F
+ pthread_equal F
+ pthread_exit F
+ pthread_getaffinity_np F
+ pthread_getattr_np F
+ pthread_getconcurrency F
+ pthread_getcpuclockid F
+ pthread_getname_np F
+ pthread_getschedparam F
+ pthread_getspecific F
+ pthread_join F
+ pthread_key_create F
+ pthread_key_delete F
+ pthread_kill F
+ pthread_kill_other_threads_np F
+ pthread_mutex_consistent F
+ pthread_mutex_consistent_np F
+ pthread_mutex_destroy F
+ pthread_mutex_getprioceiling F
+ pthread_mutex_init F
+ pthread_mutex_lock F
+ pthread_mutex_setprioceiling F
+ pthread_mutex_timedlock F
+ pthread_mutex_trylock F
+ pthread_mutex_unlock F
+ pthread_mutexattr_destroy F
+ pthread_mutexattr_getkind_np F
+ pthread_mutexattr_getprioceiling F
+ pthread_mutexattr_getprotocol F
+ pthread_mutexattr_getpshared F
+ pthread_mutexattr_getrobust F
+ pthread_mutexattr_getrobust_np F
+ pthread_mutexattr_gettype F
+ pthread_mutexattr_init F
+ pthread_mutexattr_setkind_np F
+ pthread_mutexattr_setprioceiling F
+ pthread_mutexattr_setprotocol F
+ pthread_mutexattr_setpshared F
+ pthread_mutexattr_setrobust F
+ pthread_mutexattr_setrobust_np F
+ pthread_mutexattr_settype F
+ pthread_once F
+ pthread_rwlock_destroy F
+ pthread_rwlock_init F
+ pthread_rwlock_rdlock F
+ pthread_rwlock_timedrdlock F
+ pthread_rwlock_timedwrlock F
+ pthread_rwlock_tryrdlock F
+ pthread_rwlock_trywrlock F
+ pthread_rwlock_unlock F
+ pthread_rwlock_wrlock F
+ pthread_rwlockattr_destroy F
+ pthread_rwlockattr_getkind_np F
+ pthread_rwlockattr_getpshared F
+ pthread_rwlockattr_init F
+ pthread_rwlockattr_setkind_np F
+ pthread_rwlockattr_setpshared F
+ pthread_self F
+ pthread_setaffinity_np F
+ pthread_setcancelstate F
+ pthread_setcanceltype F
+ pthread_setconcurrency F
+ pthread_setname_np F
+ pthread_setschedparam F
+ pthread_setschedprio F
+ pthread_setspecific F
+ pthread_sigmask F
+ pthread_sigqueue F
+ pthread_spin_destroy F
+ pthread_spin_init F
+ pthread_spin_lock F
+ pthread_spin_trylock F
+ pthread_spin_unlock F
+ pthread_testcancel F
+ pthread_timedjoin_np F
+ pthread_tryjoin_np F
+ pthread_yield F
+ pwrite F
+ pwrite64 F
+ raise F
+ read F
+ recv F
+ recvfrom F
+ recvmsg F
+ sem_close F
+ sem_destroy F
+ sem_getvalue F
+ sem_init F
+ sem_open F
+ sem_post F
+ sem_timedwait F
+ sem_trywait F
+ sem_unlink F
+ sem_wait F
+ send F
+ sendmsg F
+ sendto F
+ sigaction F
+ siglongjmp F
+ sigwait F
+ system F
+ tcdrain F
+ vfork F
+ wait F
+ waitpid F
+ write F
+GLIBC_2.18
+ GLIBC_2.18 A
+ pthread_getattr_default_np F
+ pthread_setattr_default_np F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libresolv.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libresolv.abilist
new file mode 100644
index 0000000000..ed312c0e6e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libresolv.abilist
@@ -0,0 +1,93 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ __b64_ntop F
+ __b64_pton F
+ __dn_comp F
+ __dn_count_labels F
+ __dn_expand F
+ __dn_skipname F
+ __fp_nquery F
+ __fp_query F
+ __fp_resstat F
+ __hostalias F
+ __loc_aton F
+ __loc_ntoa F
+ __p_cdname F
+ __p_cdnname F
+ __p_class F
+ __p_class_syms D 0xa8
+ __p_fqname F
+ __p_fqnname F
+ __p_option F
+ __p_query F
+ __p_rcode F
+ __p_secstodate F
+ __p_time F
+ __p_type F
+ __p_type_syms D 0x450
+ __putlong F
+ __putshort F
+ __res_close F
+ __res_dnok F
+ __res_hnok F
+ __res_hostalias F
+ __res_isourserver F
+ __res_mailok F
+ __res_mkquery F
+ __res_nameinquery F
+ __res_nmkquery F
+ __res_nquery F
+ __res_nquerydomain F
+ __res_nsearch F
+ __res_nsend F
+ __res_ownok F
+ __res_queriesmatch F
+ __res_query F
+ __res_querydomain F
+ __res_search F
+ __res_send F
+ __sym_ntop F
+ __sym_ntos F
+ __sym_ston F
+ _gethtbyaddr F
+ _gethtbyname F
+ _gethtbyname2 F
+ _gethtent F
+ _getlong F
+ _getshort F
+ _res_opcodes D 0x80
+ _sethtent F
+ inet_net_ntop F
+ inet_net_pton F
+ inet_neta F
+ ns_datetosecs F
+ ns_format_ttl F
+ ns_get16 F
+ ns_get32 F
+ ns_initparse F
+ ns_makecanon F
+ ns_msg_getflag F
+ ns_name_compress F
+ ns_name_ntol F
+ ns_name_ntop F
+ ns_name_pack F
+ ns_name_pton F
+ ns_name_rollback F
+ ns_name_skip F
+ ns_name_uncompress F
+ ns_name_unpack F
+ ns_parse_ttl F
+ ns_parserr F
+ ns_put16 F
+ ns_put32 F
+ ns_samedomain F
+ ns_samename F
+ ns_skiprr F
+ ns_sprintrr F
+ ns_sprintrrf F
+ ns_subdomain F
+ res_gethostbyaddr F
+ res_gethostbyname F
+ res_gethostbyname2 F
+ res_send_setqhook F
+ res_send_setrhook F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/librt.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/librt.abilist
new file mode 100644
index 0000000000..f89f83ea86
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/librt.abilist
@@ -0,0 +1,37 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ __mq_open_2 F
+ aio_cancel F
+ aio_cancel64 F
+ aio_error F
+ aio_error64 F
+ aio_fsync F
+ aio_fsync64 F
+ aio_init F
+ aio_read F
+ aio_read64 F
+ aio_return F
+ aio_return64 F
+ aio_suspend F
+ aio_suspend64 F
+ aio_write F
+ aio_write64 F
+ lio_listio F
+ lio_listio64 F
+ mq_close F
+ mq_getattr F
+ mq_notify F
+ mq_open F
+ mq_receive F
+ mq_send F
+ mq_setattr F
+ mq_timedreceive F
+ mq_timedsend F
+ mq_unlink F
+ shm_open F
+ shm_unlink F
+ timer_create F
+ timer_delete F
+ timer_getoverrun F
+ timer_gettime F
+ timer_settime F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libthread_db.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libthread_db.abilist
new file mode 100644
index 0000000000..52f8d0793b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libthread_db.abilist
@@ -0,0 +1,42 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ td_init F
+ td_log F
+ td_symbol_list F
+ td_ta_clear_event F
+ td_ta_delete F
+ td_ta_enable_stats F
+ td_ta_event_addr F
+ td_ta_event_getmsg F
+ td_ta_get_nthreads F
+ td_ta_get_ph F
+ td_ta_get_stats F
+ td_ta_map_id2thr F
+ td_ta_map_lwp2thr F
+ td_ta_new F
+ td_ta_reset_stats F
+ td_ta_set_event F
+ td_ta_setconcurrency F
+ td_ta_thr_iter F
+ td_ta_tsd_iter F
+ td_thr_clear_event F
+ td_thr_dbresume F
+ td_thr_dbsuspend F
+ td_thr_event_enable F
+ td_thr_event_getmsg F
+ td_thr_get_info F
+ td_thr_getfpregs F
+ td_thr_getgregs F
+ td_thr_getxregs F
+ td_thr_getxregsize F
+ td_thr_set_event F
+ td_thr_setfpregs F
+ td_thr_setgregs F
+ td_thr_setprio F
+ td_thr_setsigpending F
+ td_thr_setxregs F
+ td_thr_sigsetmask F
+ td_thr_tls_get_addr F
+ td_thr_tlsbase F
+ td_thr_tsd F
+ td_thr_validate F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/libutil.abilist b/sysdeps/unix/sysv/linux/aarch64/nptl/libutil.abilist
new file mode 100644
index 0000000000..7e75bb2ea8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/libutil.abilist
@@ -0,0 +1,8 @@
+GLIBC_2.17
+ GLIBC_2.17 A
+ forkpty F
+ login F
+ login_tty F
+ logout F
+ logwtmp F
+ openpty F
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/localplt.data b/sysdeps/unix/sysv/linux/aarch64/nptl/localplt.data
new file mode 100644
index 0000000000..84af95dc36
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/localplt.data
@@ -0,0 +1,15 @@
+# See scripts/check-localplt.awk for how this file is processed.
+# PLT use is required for the malloc family and for matherr because
+# users can define their own functions and have library internals call them.
+libc.so: calloc
+libc.so: free
+libc.so: malloc
+libc.so: memalign
+libc.so: realloc
+libc.so: __signbit
+libc.so: __signbitl
+libm.so: matherr
+libm.so: __signbit
+libm.so: __signbitf
+libm.so: __signbitl
+libpthread.so: __errno_location
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/lowlevellock.h b/sysdeps/unix/sysv/linux/aarch64/nptl/lowlevellock.h
new file mode 100644
index 0000000000..69a5f278eb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/lowlevellock.h
@@ -0,0 +1,326 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#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_WAIT_REQUEUE_PI   11
+#define FUTEX_CMP_REQUEUE_PI    12
+#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);					      \
+    long int __ret;							      \
+    __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp),		      \
+			      __lll_private_flag (FUTEX_WAIT, private),	      \
+			      (val), (timespec));			      \
+    __ret;								      \
+  })
+
+#define lll_futex_timed_wait_bitset(futexp, val, timespec, clockbit, private) \
+  ({									\
+    INTERNAL_SYSCALL_DECL (__err);					\
+    long int __ret;							\
+    int __op = FUTEX_WAIT_BITSET | clockbit;				\
+    __ret = INTERNAL_SYSCALL (futex, __err, 6, (long) (futexp),		\
+			      __lll_private_flag (__op, private),	\
+			      (val), (timespec), NULL /* Unused.  */,	\
+			      FUTEX_BITSET_MATCH_ANY);			\
+    __ret;								\
+  })
+
+#define lll_futex_wake(futexp, nr, private) \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    long int __ret;							      \
+    __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp),		      \
+			      __lll_private_flag (FUTEX_WAKE, private),	      \
+			      (nr), 0);					      \
+    __ret;								      \
+  })
+
+#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);				      \
+  })
+
+
+/* Priority Inheritance support.  */
+#define lll_futex_wait_requeue_pi(futexp, val, mutex, private) \
+  lll_futex_timed_wait_requeue_pi (futexp, val, NULL, 0, mutex, private)
+
+#define lll_futex_timed_wait_requeue_pi(futexp, val, timespec, clockbit,      \
+					mutex, private)			      \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    long int __ret;							      \
+    int __op = FUTEX_WAIT_REQUEUE_PI | clockbit;			      \
+									      \
+    __ret = INTERNAL_SYSCALL (futex, __err, 5, (futexp),		      \
+			      __lll_private_flag (__op, private),	      \
+			      (val), (timespec), mutex);		      \
+    INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret;		      \
+  })
+
+#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv)  \
+  ({									      \
+    INTERNAL_SYSCALL_DECL (__err);					      \
+    long int __ret;							      \
+									      \
+    __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp),		      \
+			      __lll_private_flag (FUTEX_CMP_REQUEUE_PI, priv),\
+			      (nr_wake), (nr_move), (mutex), (val));	      \
+    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
+  })
+
+
+#define lll_trylock(lock)	\
+  atomic_compare_and_exchange_val_acq(&(lock), 1, 0)
+
+#define lll_cond_trylock(lock)	\
+  atomic_compare_and_exchange_val_acq(&(lock), 2, 0)
+
+#define __lll_robust_trylock(futex, id) \
+  (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;
+
+#define __lll_lock(futex, private)					      \
+  ((void) ({								      \
+    int *__futex = (futex);						      \
+    if (__builtin_expect (atomic_compare_and_exchange_val_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)
+
+
+#define __lll_robust_lock(futex, id, private)				      \
+  ({									      \
+    int *__futex = (futex);						      \
+    int __val = 0;							      \
+									      \
+    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id,  \
+								0), 0))	      \
+      __val = __lll_robust_lock_wait (__futex, private);		      \
+    __val;								      \
+  })
+#define lll_robust_lock(futex, id, private) \
+  __lll_robust_lock (&(futex), id, private)
+
+
+#define __lll_cond_lock(futex, private)					      \
+  ((void) ({								      \
+    int *__futex = (futex);						      \
+    if (__builtin_expect (atomic_exchange_acq (__futex, 2), 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;
+
+#define __lll_timedlock(futex, abstime, private)			      \
+  ({									      \
+     int *__futex = (futex);						      \
+     int __val = 0;							      \
+									      \
+     if (__builtin_expect (atomic_exchange_acq (__futex, 1), 0))	      \
+       __val = __lll_timedlock_wait (__futex, abstime, private);	      \
+     __val;								      \
+  })
+#define lll_timedlock(futex, abstime, private) \
+  __lll_timedlock (&(futex), abstime, private)
+
+
+#define __lll_robust_timedlock(futex, abstime, id, private)		      \
+  ({									      \
+    int *__futex = (futex);						      \
+    int __val = 0;							      \
+									      \
+    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id,  \
+								0), 0))	      \
+      __val = __lll_robust_timedlock_wait (__futex, abstime, private);	      \
+    __val;								      \
+  })
+#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)
+
+
+/* Our internal lock implementation is identical to the binary-compatible
+   mutex implementation. */
+
+/* Initializers for lock.  */
+#define LLL_LOCK_INITIALIZER		(0)
+#define LLL_LOCK_INITIALIZER_LOCKED	(1)
+
+/* The states of a lock are:
+    0  -  untaken
+    1  -  taken by one user
+   >1  -  taken by more users */
+
+/* The kernel notifies a process which uses CLONE_CHILD_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/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S b/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S
new file mode 100644
index 0000000000..2108347118
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S
@@ -0,0 +1,35 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <tcb-offsets.h>
+
+/* Save the PID value.  */
+#define SAVE_PID							\
+	mrs	x2, tpidr_el0;						\
+	sub	x2, x2, #PTHREAD_SIZEOF;				\
+	ldr	w3, [x2, #PTHREAD_PID_OFFSET];				\
+	neg	w0, w3;							\
+	str	w0, [x2, #PTHREAD_PID_OFFSET]
+
+/* Restore the old PID value in the parent.  */
+#define RESTORE_PID                                                     \
+	cbz	x0, 1f;							\
+	str	w3, [x2, #PTHREAD_PID_OFFSET];				\
+1:
+
+#include "../vfork.S"
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/pthread_once.c b/sysdeps/unix/sysv/linux/aarch64/nptl/pthread_once.c
new file mode 100644
index 0000000000..d1b28ff51f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/pthread_once.c
@@ -0,0 +1,90 @@
+/* Copyright (C) 2004-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "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 (pthread_once_t *once_control, void (*init_routine) (void))
+{
+  for (;;)
+    {
+      int oldval;
+      int newval;
+
+      /* Pseudo code:
+	 newval = __fork_generation | 1;
+	 oldval = *once_control;
+	 if ((oldval & 2) == 0)
+	   *once_control = newval;
+	 Do this atomically.
+      */
+      do
+	{
+	  newval = __fork_generation | 1;
+	  oldval = *once_control;
+	  if (oldval & 2)
+	    break;
+	} while (atomic_compare_and_exchange_val_acq (once_control, newval, oldval) != oldval);
+
+      /* Check if the initializer has already been done.  */
+      if ((oldval & 2) != 0)
+	return 0;
+
+      /* Check if another thread already runs the initializer.	*/
+      if ((oldval & 1) == 0)
+	break;
+
+      /* Check whether the initializer execution was interrupted by a fork.  */
+      if (oldval != newval)
+	break;
+
+      /* Same generation, some other thread was faster. Wait.  */
+      lll_futex_wait (once_control, oldval, LLL_PRIVATE);
+    }
+
+  /* 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);
+
+  /* Say that the initialisation is done.  */
+  *once_control = __fork_generation | 2;
+
+  /* Wake up all other threads.  */
+  lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
+
+  return 0;
+}
+weak_alias (__pthread_once, pthread_once)
+hidden_def (__pthread_once)
diff --git a/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h b/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h
new file mode 100644
index 0000000000..f6903b5dd8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/sysdep-cancel.h
@@ -0,0 +1,205 @@
+/* Copyright (C) 2003-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#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
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args)				\
+  .section ".text";							\
+  .type __##syscall_name##_nocancel,%function;				\
+  .globl __##syscall_name##_nocancel;					\
+  __##syscall_name##_nocancel:						\
+    cfi_startproc;							\
+    DO_CALL (syscall_name, args);					\
+    PSEUDO_RET;								\
+    cfi_endproc;							\
+    .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	\
+  ENTRY (name);								\
+    SINGLE_THREAD_P;							\
+    DOARGS_##args;							\
+    bne .Lpseudo_cancel;						\
+    DO_CALL (syscall_name, 0);						\
+    UNDOARGS_##args;							\
+    cmn x0, 4095;							\
+    PSEUDO_RET;								\
+  .Lpseudo_cancel:							\
+    DOCARGS_##args;	/* save syscall args etc. around CENABLE.  */	\
+    CENABLE;								\
+    mov x16, x0;	/* put mask in safe place.  */			\
+    UNDOCARGS_##args;	/* restore syscall args.  */			\
+    mov x8, SYS_ify (syscall_name);	/* do the call.  */		\
+    svc	0;								\
+    str x0, [sp, -16]!;	/* save syscall return value.  */		\
+    cfi_adjust_cfa_offset (16);						\
+    mov x0, x16;	 /* get mask back.  */				\
+    CDISABLE;								\
+    ldr x0, [sp], 16;							\
+    cfi_adjust_cfa_offset (-16);					\
+    ldr x30, [sp], 16;							\
+    cfi_adjust_cfa_offset (-16);					\
+    cfi_restore (x30);							\
+    UNDOARGS_##args;							\
+    cmn x0, 4095;
+
+# define DOCARGS_0							\
+	str x30, [sp, -16]!;						\
+	cfi_adjust_cfa_offset (16);					\
+	cfi_rel_offset (x30, 0)
+
+# define UNDOCARGS_0
+
+# define DOCARGS_1							\
+	DOCARGS_0;							\
+	str x0, [sp, -16]!;						\
+	cfi_adjust_cfa_offset (16);					\
+	cfi_rel_offset (x0, 0)
+
+# define UNDOCARGS_1							\
+	ldr x0, [sp], 16;						\
+	cfi_restore (x0);						\
+	cfi_adjust_cfa_offset (-16);					\
+
+# define DOCARGS_2							\
+	DOCARGS_1;							\
+	str x1, [sp, -16]!;						\
+	cfi_adjust_cfa_offset (16);					\
+	cfi_rel_offset (x1, 0)
+
+# define UNDOCARGS_2							\
+	ldr x1, [sp], 16;						\
+	cfi_restore (x1);						\
+	cfi_adjust_cfa_offset (-16);					\
+	UNDOCARGS_1
+
+# define DOCARGS_3							\
+	DOCARGS_2;							\
+	str x2, [sp, -16]!;						\
+	cfi_adjust_cfa_offset (16);					\
+	cfi_rel_offset (x2, 0)
+
+# define UNDOCARGS_3							\
+	ldr x2, [sp], 16;						\
+	cfi_restore (x2);						\
+	cfi_adjust_cfa_offset (-16);					\
+	UNDOCARGS_2
+
+# define DOCARGS_4							\
+	DOCARGS_3;							\
+	str x3, [sp, -16]!;						\
+	cfi_adjust_cfa_offset (16);					\
+	cfi_rel_offset (x3, 0)
+
+# define UNDOCARGS_4							\
+	ldr x3, [sp], 16;						\
+	cfi_restore (x3);						\
+	cfi_adjust_cfa_offset (-16);					\
+	UNDOCARGS_3
+
+# define DOCARGS_5							\
+	DOCARGS_4;							\
+	str x4, [sp, -16]!;						\
+	cfi_adjust_cfa_offset (16);					\
+	cfi_rel_offset (x4, 0)
+
+# define UNDOCARGS_5							\
+	ldr x4, [sp], 16;						\
+	cfi_restore (x4);						\
+	cfi_adjust_cfa_offset (-16);					\
+	UNDOCARGS_4
+
+# define DOCARGS_6							\
+	DOCARGS_5;							\
+	str x5, [sp, -16]!;						\
+	cfi_adjust_cfa_offset (16);					\
+	cfi_rel_offset (x5, 0)
+
+# define UNDOCARGS_6							\
+	ldr x5, [sp], 16;						\
+	cfi_restore (x5);						\
+	cfi_adjust_cfa_offset (-16);					\
+	UNDOCARGS_5
+
+# ifdef IS_IN_libpthread
+#  define CENABLE	bl __pthread_enable_asynccancel
+#  define CDISABLE	bl __pthread_disable_asynccancel
+#  define __local_multiple_threads __pthread_multiple_threads
+# elif !defined NOT_IN_libc
+#  define CENABLE	bl __libc_enable_asynccancel
+#  define CDISABLE	bl __libc_disable_asynccancel
+#  define __local_multiple_threads __libc_multiple_threads
+# elif defined IS_IN_librt
+#  define CENABLE	bl __librt_enable_asynccancel
+#  define CDISABLE	bl __librt_disable_asynccancel
+# else
+#  error Unsupported library
+# endif
+
+# if defined IS_IN_libpthread || !defined NOT_IN_libc
+#  ifndef __ASSEMBLER__
+extern int __local_multiple_threads attribute_hidden;
+#   define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
+#  else
+#   define SINGLE_THREAD_P						\
+  adrp	x16, __local_multiple_threads;					\
+  add	x16, x16, #:lo12:__local_multiple_threads;			\
+  ldr	x16, [x16];							\
+  cmp	x16, 0;
+#  endif
+# else
+/*  There is no __local_multiple_threads for librt, so use the TCB.  */
+#  ifndef __ASSEMBLER__
+#   define SINGLE_THREAD_P						\
+  __builtin_expect (THREAD_GETMEM (THREAD_SELF,				\
+				   header.multiple_threads) == 0, 1)
+#  else
+#   define SINGLE_THREAD_P						\
+  stp	x0, x30, [sp, -16]!;						\
+  cfi_adjust_cfa_offset (16);						\
+  cfi_rel_offset (x0, 0);						\
+  cfi_rel_offset (x30, 8);						\
+  bl	__read_tp;							\
+  sub	x0, x0, PTHREAD_SIZEOF;						\
+  ldr	x16, [x0, PTHREAD_MULTIPLE_THREADS_OFFSET];			\
+  ldp	x0, x30, [sp], 16;						\
+  cfi_restore (x0);							\
+  cfi_restore (x30);							\
+  cfi_adjust_cfa_offset (-16);						\
+  cmp	x16, 0
+#   define SINGLE_THREAD_P_PIC(x) SINGLE_THREAD_P
+#  endif
+# endif
+
+#elif !defined __ASSEMBLER__
+
+/* For rtld, et cetera.  */
+# 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/sysdeps/unix/sysv/linux/aarch64/nptl/vfork.S b/sysdeps/unix/sysv/linux/aarch64/nptl/vfork.S
new file mode 100644
index 0000000000..cc056085da
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/nptl/vfork.S
@@ -0,0 +1,37 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <tcb-offsets.h>
+
+/* Save the PID value.  */
+#define SAVE_PID                                                              \
+        mrs     x2, tpidr_el0;                                                \
+        sub     x2, x2, #PTHREAD_SIZEOF;                                      \
+        ldr     w3, [x2, #PTHREAD_PID_OFFSET];                                \
+        cmp     w3, #0;                                                       \
+        mov     w0, #0x80000000;                                              \
+	csneg	w0, w0, w3, eq;                                               \
+        str     w0, [x2, #PTHREAD_PID_OFFSET]
+
+/* Restore the old PID value in the parent.  */
+#define RESTORE_PID                                                           \
+        cbz     x0, 1f;                         /* If we are the parent... */ \
+        str     w3, [x2, #PTHREAD_PID_OFFSET];  /* restore the saved PID.  */ \
+1:
+
+#include "../vfork.S"
diff --git a/sysdeps/unix/sysv/linux/aarch64/profil-counter.h b/sysdeps/unix/sysv/linux/aarch64/profil-counter.h
new file mode 100644
index 0000000000..f89339832c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/profil-counter.h
@@ -0,0 +1,20 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* We can use the ix86 version.  */
+#include <sysdeps/unix/sysv/linux/i386/profil-counter.h>
diff --git a/sysdeps/unix/sysv/linux/aarch64/readelflib.c b/sysdeps/unix/sysv/linux/aarch64/readelflib.c
new file mode 100644
index 0000000000..2d8a7f1246
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/readelflib.c
@@ -0,0 +1,18 @@
+/* Copyright (C) 2012-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "../arm/readelflib.c"
diff --git a/sysdeps/unix/sysv/linux/aarch64/setcontext.S b/sysdeps/unix/sysv/linux/aarch64/setcontext.S
new file mode 100644
index 0000000000..d220c41f67
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/setcontext.S
@@ -0,0 +1,89 @@
+/* Set current context.
+
+   Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include "ucontext_i.h"
+#include "ucontext-internal.h"
+
+/* int setcontext (const ucontext_t *ucp) */
+
+	.text
+
+ENTRY(__setcontext)
+
+	/* Create a signal frame on the stack:
+
+		fp
+		lr
+		...
+	   sp-> rt_sigframe
+	 */
+
+	stp     x29, x30, [sp, -16]!
+	cfi_adjust_cfa_offset (16)
+	cfi_rel_offset (x29, 0)
+	cfi_rel_offset (x30, 8)
+
+        mov     x29, sp
+	cfi_def_cfa_register (x29)
+
+	/* Allocate space for the sigcontext.  */
+	mov	w3, #((RT_SIGFRAME_SIZE + SP_ALIGN_SIZE) & SP_ALIGN_MASK)
+	sub	sp, sp,	x3
+
+	/* Compute the base address of the ucontext structure.  */
+	add	x1, sp, #RT_SIGFRAME_UCONTEXT
+
+	/* Only ucontext is required in the frame, *copy* it in.  */
+
+#if UCONTEXT_SIZE % 16
+#error The implementation of setcontext.S assumes sizeof(ucontext_t) % 16 == 0
+#endif
+
+	mov	x2, #UCONTEXT_SIZE / 16
+0:
+	ldp	x3, x4, [x0], #16
+	stp	x3, x4, [x1], #16
+	sub	x2, x2, 1
+	cbnz	x2, 0b
+
+	/* rt_sigreturn () -- no arguments, sp points to struct rt_sigframe.  */
+	mov	x8, SYS_ify (rt_sigreturn)
+	svc	0
+
+	/* Ooops we failed.  Recover the stack */
+
+	mov	sp, x29
+	cfi_def_cfa_register (sp)
+
+        ldp     x29, x30, [sp], 16
+	cfi_adjust_cfa_offset (16)
+	cfi_restore (x29)
+	cfi_restore (x30)
+	b	C_SYMBOL_NAME(__syscall_error)
+
+PSEUDO_END (__setcontext)
+weak_alias (__setcontext, setcontext)
+
+ENTRY(__startcontext)
+	mov	x0, x19
+	cbnz	x0, __setcontext
+1:	b       HIDDEN_JUMPTARGET(_exit)
+END(__startcontext)
diff --git a/sysdeps/unix/sysv/linux/aarch64/sigaction.c b/sysdeps/unix/sysv/linux/aarch64/sigaction.c
new file mode 100644
index 0000000000..418207f68d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sigaction.c
@@ -0,0 +1,80 @@
+/* Copyright (C) 1997-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include <kernel-features.h>
+
+#define SA_RESTORER	0x04000000
+
+/* The difference here is that the sigaction structure used in the
+   kernel is not the same as we use in the libc.  Therefore we must
+   translate it here.  */
+#include <kernel_sigaction.h>
+
+int
+__libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+{
+  int result;
+  struct kernel_sigaction kact;
+  struct kernel_sigaction koact;
+
+  if (act)
+    {
+      kact.k_sa_handler = act->sa_handler;
+      memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
+      kact.sa_flags = act->sa_flags;
+#ifdef HAVE_SA_RESTORER
+      if (kact.sa_flags & SA_RESTORER)
+	kact.sa_restorer = act->sa_restorer;
+#endif
+    }
+
+  result = INLINE_SYSCALL (rt_sigaction, 4, sig,
+			   act ? &kact : NULL,
+			   oact ? &koact : NULL, _NSIG / 8);
+  if (result >= 0 || errno != ENOSYS)
+    {
+      if (oact && result >= 0)
+	{
+	  oact->sa_handler = koact.k_sa_handler;
+	  memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
+	  oact->sa_flags = koact.sa_flags;
+#ifdef HAVE_SA_RESTORER
+	  oact->sa_restorer = koact.sa_restorer;
+#endif
+	}
+    }
+  return result;
+}
+libc_hidden_def (__libc_sigaction)
+
+#ifdef WRAPPER_INCLUDE
+# include WRAPPER_INCLUDE
+#endif
+
+#ifndef LIBC_SIGACTION
+weak_alias (__libc_sigaction, __sigaction)
+libc_hidden_weak (__sigaction)
+weak_alias (__libc_sigaction, sigaction)
+#endif
diff --git a/sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h b/sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h
new file mode 100644
index 0000000000..3291fd97e3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h
@@ -0,0 +1,35 @@
+/* AArch64 definitions for signal handling calling conventions.
+   Copyright (C) 1996-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sys/ucontext.h>
+#include "kernel-features.h"
+
+#define SIGCONTEXT siginfo_t *_si, struct ucontext *
+#define GET_PC(ctx) ((void *) (ctx)->uc_mcontext.pc)
+
+/* There is no reliable way to get the sigcontext unless we use a
+   three-argument signal handler.  */
+#define __sigaction(sig, act, oact) ({ \
+  (act)->sa_flags |= SA_SIGINFO; \
+  (__sigaction) (sig, act, oact); \
+})
+
+#define sigaction(sig, act, oact) ({ \
+  (act)->sa_flags |= SA_SIGINFO; \
+  (sigaction) (sig, act, oact); \
+})
diff --git a/sysdeps/unix/sysv/linux/aarch64/swapcontext.S b/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
new file mode 100644
index 0000000000..deb27fa46c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
@@ -0,0 +1,100 @@
+/* Modify saved context.
+
+   Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+#include "ucontext-internal.h"
+
+/* int swapcontext (ucontext_t *oucp, const ucontext_t *ucp) */
+
+	.text
+ENTRY(__swapcontext)
+	/* Set the value returned when swapcontext() returns in this context. */
+	str	xzr,      [x0, oX0 +  0 * SZREG]
+
+	stp	x18, x19, [x0, oX0 + 18 * SZREG]
+	stp	x20, x21, [x0, oX0 + 20 * SZREG]
+	stp	x22, x23, [x0, oX0 + 22 * SZREG]
+	stp	x24, x25, [x0, oX0 + 24 * SZREG]
+	stp	x26, x27, [x0, oX0 + 26 * SZREG]
+	stp	x28, x29, [x0, oX0 + 28 * SZREG]
+	str     x30,      [x0, oX0 + 30 * SZREG]
+	str     x30,      [x0, oPC]
+	mov	x2, sp
+	str     x2,       [x0, oSP]
+
+	/* Figure out where to place the first context extension
+	   block.  */
+	add     x2, x0, #oEXTENSION
+
+	/* Write the context extension fpsimd header.  */
+	mov	w3, #(FPSIMD_MAGIC & 0xffff)
+	movk	w3, #(FPSIMD_MAGIC >> 16), lsl #16
+	str	w3, [x2, #oHEAD + oMAGIC]
+	mov	w3, #FPSIMD_CONTEXT_SIZE
+	str	w3, [x2, #oHEAD + oSIZE]
+
+	/* Fill in the FP SIMD context.  */
+	add	x3, x2, #oV0 + 8 * SZVREG
+	stp	 d8,  d9, [x3], #2 * SZVREG
+	stp	d10, d11, [x3], #2 * SZVREG
+	stp	d12, d13, [x3], #2 * SZVREG
+	stp	d14, d15, [x3], #2 * SZVREG
+
+	add	x3, x2, #oFPSR
+
+	mrs	x4, fpsr
+	str	w4, [x3, #oFPSR - oFPSR]
+
+	mrs	x4, fpcr
+	str	w4, [x3, #oFPCR - oFPSR]
+
+	/* Write the termination context extension header.  */
+	add	x2, x2, #FPSIMD_CONTEXT_SIZE
+
+	str	xzr, [x2, #oHEAD + oMAGIC]
+	str	xzr, [x2, #oHEAD + oSIZE]
+
+	/* Preserve ucp.  */
+	mov	x21, x1
+
+	/* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, &oucp->uc_sigmask,
+			   _NSIG8) */
+	/* Grab the signal mask */
+	/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
+	add	x2, x0, #UCONTEXT_SIGMASK
+	mov	x0, SIG_BLOCK
+	mov	x1, 0
+	mov	x3, _NSIG8
+	mov	x8, SYS_ify (rt_sigprocmask)
+	svc	0
+	cbnz	x0, 1f
+
+	mov     x22, x30
+	mov	x0, x21
+	bl	JUMPTARGET (__setcontext)
+	mov     x30, x22
+	RET
+
+1:
+	b	C_SYMBOL_NAME(__syscall_error)
+PSEUDO_END (__swapcontext)
+weak_alias (__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/aarch64/sys/elf.h b/sysdeps/unix/sysv/linux/aarch64/sys/elf.h
new file mode 100644
index 0000000000..b65832f6e5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sys/elf.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1996-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_ELF_H
+#define _SYS_ELF_H	1
+
+#warning "This header is obsolete; use <sys/procfs.h> instead."
+
+#include <sys/procfs.h>
+
+#endif	/* sys/elf.h */
diff --git a/sysdeps/unix/sysv/linux/aarch64/sys/procfs.h b/sysdeps/unix/sysv/linux/aarch64/sys/procfs.h
new file mode 100644
index 0000000000..b02af8ac1a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sys/procfs.h
@@ -0,0 +1,134 @@
+/* Copyright (C) 1996-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#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>
+#include <sys/user.h>
+
+/* We need to see the definition of struct pt_regs but do not want the
+   linux PTRACE_* defines since they conflict with the generic eglibc
+   definitions in sys/ptrace.h Hence the undef's below.  */
+#include <asm/ptrace.h>
+
+#undef PTRACE_GET_THREAD_AREA
+#undef PTRACE_GETHBPREGS
+#undef PTRACE_SETHBPREGS
+
+#include <sys/user.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register.  */
+typedef unsigned long elf_greg_t;
+
+/* And the whole bunch of them.  We could have used `struct
+   pt_regs' 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 (sizeof (struct user_pt_regs) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Register set for the floating-point registers.  */
+typedef struct user_fpsimd_state elf_fpregset_t;
+
+/* 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 short int pr_uid;
+    unsigned short 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;
+typedef elf_fpregset_t 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/sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h b/sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h
new file mode 100644
index 0000000000..ca57bb50e5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h
@@ -0,0 +1,194 @@
+/* `ptrace' debugger support interface.  Linux version.
+   Copyright (C) 1996-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_PTRACE_H
+#define _SYS_PTRACE_H	1
+
+#include <features.h>
+#include <bits/types.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
+
+  /* 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
+
+  PTRACE_GET_THREAD_AREA = 22,
+
+  /* Continue and stop at the next (return from) syscall.  */
+  PTRACE_SYSCALL = 24,
+#define PT_SYSCALL PTRACE_SYSCALL
+
+  /* Get all hardware breakpoint registers.  */
+  PTRACE_GETHBPREGS = 29,
+
+  /* Set all hardware breakpoint registers.  */
+  PTRACE_SETHBPREGS = 30,
+
+  /* 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
+
+  /* Get register content.  */
+  PTRACE_GETREGSET = 0x4204,
+#define PTRACE_GETREGSET PTRACE_GETREGSET
+
+  /* Set register content.  */
+  PTRACE_SETREGSET = 0x4205,
+#define PTRACE_SETREGSET PTRACE_SETREGSET
+
+  /* Like PTRACE_ATTACH, but do not force tracee to trap and do not affect
+     signal or group stop state.  */
+  PTRACE_SEIZE = 0x4206,
+#define PTRACE_SEIZE PTRACE_SEIZE
+
+  /* Trap seized trace.  */
+  PTRACE_INTERRUPT = 0x4207,
+#define PTRACE_INTERRUPT PTRACE_INTERRUPT
+
+  /* Wait for next group event.  */
+  PTRACE_LISTEN = 0x4208,
+#define PTRACE_LISTEN PTRACE_LISTEN
+
+  PTRACE_PEEKSIGINFO = 0x4209
+#define PTRACE_PEEKSIGINFO PTRACE_PEEKSIGINFO
+};
+
+
+/* Flag for PTRACE_LISTEN.  */
+enum __ptrace_flags
+{
+  PTRACE_SEIZE_DEVEL = 0x80000000
+};
+
+/* 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_TRACESECCOMP = 0x00000080,
+  PTRACE_O_MASK		= 0x000000ff
+};
+
+/* 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,
+  PTRACE_EVENT_SECCOMP  = 7
+};
+
+/* Arguments for PTRACE_PEEKSIGINFO.  */
+struct __ptrace_peeksiginfo_args
+{
+  __uint64_t off;	/* From which siginfo to start.  */
+  __uint32_t flags;	/* Flags for peeksiginfo.  */
+  __int32_t nr;		/* How many siginfos to take.  */
+};
+
+enum __ptrace_peeksiginfo_flags
+{
+  /* Read signals from a shared (process wide) queue.  */
+  PTRACE_PEEKSIGINFO_SHARED = (1 << 0)
+};
+
+/* 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/sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h b/sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h
new file mode 100644
index 0000000000..476f5debbf
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h
@@ -0,0 +1,56 @@
+/* Copyright (C) 1998-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* System V/AArch64 ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#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>.  */
+#include <bits/sigcontext.h>
+
+typedef int greg_t;
+
+/* Container for all general registers.  */
+typedef elf_gregset_t gregset_t;
+
+/* Structure to describe FPU registers.  */
+typedef elf_fpregset_t	fpregset_t;
+
+/* Context to describe whole processor state.  This only describes
+   the core registers; coprocessor registers get saved elsewhere
+   (e.g. in uc_regspace, or somewhere unspecified on the stack
+   during non-RT signal handlers).  */
+typedef struct sigcontext mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext
+  {
+    unsigned long uc_flags;
+    struct ucontext *uc_link;
+    stack_t uc_stack;
+    __sigset_t uc_sigmask;
+    mcontext_t uc_mcontext;
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/sysdeps/unix/sysv/linux/aarch64/sys/user.h b/sysdeps/unix/sysv/linux/aarch64/sys/user.h
new file mode 100644
index 0000000000..eceeb389e4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sys/user.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H	1
+
+/* We need to see the definition of struct pt_regs but do not want the
+   linux PTRACE_* defines since they conflict with the generic glibc
+   definitions in sys/ptrace.h Hence the undef's below.  */
+#include <asm/ptrace.h>
+
+#undef PTRACE_GET_THREAD_AREA
+#undef PTRACE_GETHBPREGS
+#undef PTRACE_SETHBPREGS
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/aarch64/syscall.S b/sysdeps/unix/sysv/linux/aarch64/syscall.S
new file mode 100644
index 0000000000..20dd6904a9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/syscall.S
@@ -0,0 +1,44 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+/* syscall (int nr, ...)
+
+   AArch64 system calls take between 0 and 7 arguments. On entry here nr
+   is in w0 and any other system call arguments are in register x1..x7.
+
+   For kernel entry we need to move the system call nr to x8 then
+   load the remaining arguments to register. */
+
+ENTRY (syscall)
+	uxtw	x8, w0
+	mov	x0, x1
+	mov	x1, x2
+	mov	x2, x3
+	mov	x3, x4
+	mov	x4, x5
+	mov	x5, x6
+	mov	x6, x7
+	svc	0x0
+	cmn	x0, #4095
+	b.cs	1f
+	RET
+1:
+	b	SYSCALL_ERROR
+PSEUDO_END (syscall)
diff --git a/sysdeps/unix/sysv/linux/aarch64/sysdep.c b/sysdeps/unix/sysv/linux/aarch64/sysdep.c
new file mode 100644
index 0000000000..bfb87c5d4f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sysdep.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2011-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include <errno.h>
+
+long __syscall_error (long err);
+hidden_proto (__syscall_error)
+
+/* This routine is jumped to by all the syscall handlers, to stash
+   an error number into errno.  */
+long
+__syscall_error (long err)
+{
+  __set_errno (- err);
+  return -1;
+}
+hidden_def (__syscall_error)
diff --git a/sysdeps/unix/sysv/linux/aarch64/sysdep.h b/sysdeps/unix/sysv/linux/aarch64/sysdep.h
new file mode 100644
index 0000000000..5ccf1da18b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/sysdep.h
@@ -0,0 +1,414 @@
+/* Copyright (C) 2005-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _LINUX_AARCH64_SYSDEP_H
+#define _LINUX_AARCH64_SYSDEP_H 1
+
+#include <sysdeps/unix/sysdep.h>
+#include <sysdeps/aarch64/sysdep.h>
+#include <sysdeps/unix/sysv/linux/generic/sysdep.h>
+
+/* Defines RTLD_PRIVATE_ERRNO and USE_DL_SYSINFO.  */
+#include <dl-sysdep.h>
+
+#include <tls.h>
+
+/* In order to get __set_errno() definition in INLINE_SYSCALL.  */
+#ifndef __ASSEMBLER__
+#include <errno.h>
+#endif
+
+/* For Linux we can use the system call table in the header file
+	/usr/include/asm/unistd.h
+   of the kernel.  But these symbols do not follow the SYS_* syntax
+   so we have to redefine the `SYS_ify' macro here.  */
+#undef SYS_ify
+#define SYS_ify(syscall_name)	(__NR_##syscall_name)
+
+#ifdef __ASSEMBLER__
+
+/* Linux uses a negative return value to indicate syscall errors,
+   unlike most Unices, which use the condition codes' carry flag.
+
+   Since version 2.1 the return value of a system call might be
+   negative even if the call succeeded.  E.g., the `lseek' system call
+   might return a large offset.  Therefore we must not anymore test
+   for < 0, but test for a real error by making sure the value in R0
+   is a real error number.  Linus said he will make sure the no syscall
+   returns a value in -1 .. -4095 as a valid result so we can safely
+   test with -4095.  */
+
+# undef	PSEUDO
+# define PSEUDO(name, syscall_name, args)				      \
+  .text;								      \
+  ENTRY (name);								      \
+    DO_CALL (syscall_name, args);					      \
+    cmn x0, #4095;
+
+/* Notice the use of 'RET' instead of 'ret' the assembler is case
+   insensitive and eglibc already uses the preprocessor symbol 'ret'
+   so we use the upper case 'RET' to force through a ret instruction
+   to the assembler */
+# define PSEUDO_RET							      \
+    b.cs 1f;								      \
+    RET;								      \
+    1:                                                                        \
+    b SYSCALL_ERROR
+# undef ret
+# define ret PSEUDO_RET
+
+# undef	PSEUDO_END
+# define PSEUDO_END(name)						      \
+  SYSCALL_ERROR_HANDLER							      \
+  END (name)
+
+# undef	PSEUDO_NOERRNO
+# define PSEUDO_NOERRNO(name, syscall_name, args)			      \
+  .text;								      \
+  ENTRY (name);								      \
+    DO_CALL (syscall_name, args);
+
+/* Notice the use of 'RET' instead of 'ret' the assembler is case
+   insensitive and eglibc already uses the preprocessor symbol 'ret'
+   so we use the upper case 'RET' to force through a ret instruction
+   to the assembler */
+# define PSEUDO_RET_NOERRNO						      \
+    RET;
+
+# undef ret_NOERRNO
+# define ret_NOERRNO PSEUDO_RET_NOERRNO
+
+# undef	PSEUDO_END_NOERRNO
+# define PSEUDO_END_NOERRNO(name)					      \
+  END (name)
+
+/* The function has to return the error code.  */
+# undef	PSEUDO_ERRVAL
+# define PSEUDO_ERRVAL(name, syscall_name, args) \
+  .text;								      \
+  ENTRY (name)								      \
+    DO_CALL (syscall_name, args);					      \
+    neg x0, x0
+
+# undef	PSEUDO_END_ERRVAL
+# define PSEUDO_END_ERRVAL(name) \
+  END (name)
+
+# define ret_ERRVAL PSEUDO_RET_NOERRNO
+
+# if NOT_IN_libc
+#  define SYSCALL_ERROR __local_syscall_error
+#  if RTLD_PRIVATE_ERRNO
+#   define SYSCALL_ERROR_HANDLER				\
+__local_syscall_error:						\
+	adrp	x1, C_SYMBOL_NAME(rtld_errno);			\
+	add	x1, x1, #:lo12:C_SYMBOL_NAME(rtld_errno);	\
+	neg     w0, w0;						\
+	str     w0, [x1];					\
+	mov	x0, -1;						\
+	RET;
+#  else
+
+#   define SYSCALL_ERROR_HANDLER				\
+__local_syscall_error:						\
+	stp     x29, x30, [sp, -32]!;				\
+	cfi_adjust_cfa_offset (32);				\
+	cfi_rel_offset (x29, 0);				\
+	cfi_rel_offset (x30, 8);				\
+        add     x29, sp, 0;					\
+        str     x19, [sp,16];					\
+	neg	x19, x0;					\
+	bl	C_SYMBOL_NAME(__errno_location);		\
+	str	w19, [x0];					\
+	mov	x0, -1;						\
+        ldr     x19, [sp,16];					\
+        ldp     x29, x30, [sp], 32;				\
+	cfi_adjust_cfa_offset (-32);				\
+	cfi_restore (x29);					\
+	cfi_restore (x30);					\
+	RET;
+#  endif
+# else
+#  define SYSCALL_ERROR_HANDLER	/* Nothing here; code in sysdep.S is used.  */
+#  define SYSCALL_ERROR __syscall_error
+# endif
+
+/* Linux takes system call args in registers:
+	syscall number	in the SVC instruction
+	arg 1		x0
+	arg 2		x1
+	arg 3		x2
+	arg 4		x3
+	arg 5		x4
+	arg 6		x5
+	arg 7		x6
+
+   The compiler is going to form a call by coming here, through PSEUDO, with
+   arguments
+	syscall number	in the DO_CALL macro
+	arg 1		x0
+	arg 2		x1
+	arg 3		x2
+	arg 4		x3
+	arg 5		x4
+	arg 6		x5
+	arg 7		x6
+
+   We need to shuffle values between R4..R6 and the stack so that the
+   caller's v1..v3 and stack frame are not corrupted, and the kernel
+   sees the right arguments.
+
+*/
+
+# undef	DO_CALL
+# define DO_CALL(syscall_name, args)		\
+    DOARGS_##args				\
+    mov x8, SYS_ify (syscall_name);		\
+    svc 0;					\
+    UNDOARGS_##args
+
+# define DOARGS_0 /* nothing */
+# define DOARGS_1 /* nothing */
+# define DOARGS_2 /* nothing */
+# define DOARGS_3 /* nothing */
+# define DOARGS_4 /* nothing */
+# define DOARGS_5 /* nothing */
+# define DOARGS_6 /* nothing */
+# define DOARGS_7 /* nothing */
+
+# define UNDOARGS_0 /* nothing */
+# define UNDOARGS_1 /* nothing */
+# define UNDOARGS_2 /* nothing */
+# define UNDOARGS_3 /* nothing */
+# define UNDOARGS_4 /* nothing */
+# define UNDOARGS_5 /* nothing */
+# define UNDOARGS_6 /* nothing */
+# define UNDOARGS_7 /* nothing */
+
+#else /* not __ASSEMBLER__ */
+
+# ifdef SHARED
+#  define INLINE_VSYSCALL(name, nr, args...)				      \
+  ({									      \
+    __label__ out;							      \
+    __label__ iserr;							      \
+    long sc_ret;							      \
+    INTERNAL_SYSCALL_DECL (sc_err);					      \
+									      \
+    if (__vdso_##name != NULL)						      \
+      {									      \
+	sc_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, sc_err, nr, ##args);   \
+	if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err))			      \
+	  goto out;							      \
+	if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS)		      \
+	  goto iserr;							      \
+      }									      \
+									      \
+    sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, ##args);		      \
+    if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err))			      \
+      {									      \
+      iserr:								      \
+        __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err));		      \
+        sc_ret = -1L;							      \
+      }									      \
+  out:									      \
+    sc_ret;								      \
+  })
+# else
+#  define INLINE_VSYSCALL(name, nr, args...) \
+  INLINE_SYSCALL (name, nr, ##args)
+# endif
+
+# ifdef SHARED
+#  define INTERNAL_VSYSCALL(name, err, nr, args...)			      \
+  ({									      \
+    __label__ out;							      \
+    long v_ret;								      \
+									      \
+    if (__vdso_##name != NULL)						      \
+      {									      \
+	v_ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args);	      \
+	if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err)			      \
+	    || INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS)		      \
+	  goto out;							      \
+      }									      \
+    v_ret = INTERNAL_SYSCALL (name, err, nr, ##args);			      \
+  out:									      \
+    v_ret;								      \
+  })
+# else
+#  define INTERNAL_VSYSCALL(name, err, nr, args...) \
+  INTERNAL_SYSCALL (name, err, nr, ##args)
+# endif
+
+/* List of system calls which are supported as vsyscalls.  */
+# define HAVE_CLOCK_GETRES_VSYSCALL	1
+# define HAVE_CLOCK_GETTIME_VSYSCALL	1
+
+# define INTERNAL_VSYSCALL_NCS(funcptr, err, nr, args...)	\
+  ({								\
+    LOAD_ARGS_##nr (args)					\
+    asm volatile ("blr %1"					\
+		  : "=r" (_x0)					\
+		  : "r" (funcptr), ASM_ARGS_##nr		\
+		  : "x30", "memory");				\
+    (long) _x0;							\
+  })
+
+
+/* Define a macro which expands into the inline wrapper code for a system
+   call.  */
+# undef INLINE_SYSCALL
+# define INLINE_SYSCALL(name, nr, args...)				\
+  ({ unsigned long _sys_result = INTERNAL_SYSCALL (name, , nr, args);	\
+     if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result, ), 0))\
+       {								\
+	 __set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result, ));		\
+	 _sys_result = (unsigned long) -1;				\
+       }								\
+     (long) _sys_result; })
+
+# undef INTERNAL_SYSCALL_DECL
+# define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+# undef INTERNAL_SYSCALL_RAW
+# define INTERNAL_SYSCALL_RAW(name, err, nr, args...)		\
+  ({ unsigned long _sys_result;					\
+     {								\
+       LOAD_ARGS_##nr (args)					\
+       register long _x8 asm ("x8") = (name);			\
+       asm volatile ("svc	0	// syscall " # name     \
+		     : "+r" (_x0), "+r" (_x8)			\
+		     : ASM_ARGS_##nr				\
+		     : "memory", CLOBBER_ARGS_##nr);		\
+       _sys_result = _x0;					\
+     }								\
+     (long) _sys_result; })
+
+# undef INTERNAL_SYSCALL
+# define INTERNAL_SYSCALL(name, err, nr, args...)		\
+	INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args)
+
+# undef INTERNAL_SYSCALL_AARCH64
+# define INTERNAL_SYSCALL_AARCH64(name, err, nr, args...)	\
+	INTERNAL_SYSCALL_RAW(__ARM_NR_##name, err, nr, args)
+
+# undef INTERNAL_SYSCALL_ERROR_P
+# define INTERNAL_SYSCALL_ERROR_P(val, err) \
+  ((unsigned long) (val) >= (unsigned long) -4095)
+
+# undef INTERNAL_SYSCALL_ERRNO
+# define INTERNAL_SYSCALL_ERRNO(val, err)	(-(val))
+
+# define CLOBBER_ARGS_0       CLOBBER_ARGS_1
+# define CLOBBER_ARGS_1 "x1", CLOBBER_ARGS_2
+# define CLOBBER_ARGS_2 "x2", CLOBBER_ARGS_3
+# define CLOBBER_ARGS_3 "x3", CLOBBER_ARGS_4
+# define CLOBBER_ARGS_4 "x4", CLOBBER_ARGS_5
+# define CLOBBER_ARGS_5 "x5", CLOBBER_ARGS_6
+# define CLOBBER_ARGS_6 "x6", CLOBBER_ARGS_7
+# define CLOBBER_ARGS_7 \
+  "x7", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18"
+
+# define LOAD_ARGS_0()				\
+  register long _x0 asm ("x0");
+
+# define ASM_ARGS_0
+# define LOAD_ARGS_1(x0)			\
+  long _x0tmp = (long) (x0);			\
+  LOAD_ARGS_0 ()				\
+  _x0 = _x0tmp;
+# define ASM_ARGS_1	"r" (_x0)
+# define LOAD_ARGS_2(x0, x1)			\
+  long _x1tmp = (long) (x1);			\
+  LOAD_ARGS_1 (x0)				\
+  register long _x1 asm ("x1") = _x1tmp;
+# define ASM_ARGS_2	ASM_ARGS_1, "r" (_x1)
+# define LOAD_ARGS_3(x0, x1, x2)		\
+  long _x2tmp = (long) (x2);			\
+  LOAD_ARGS_2 (x0, x1)				\
+  register long _x2 asm ("x2") = _x2tmp;
+# define ASM_ARGS_3	ASM_ARGS_2, "r" (_x2)
+# define LOAD_ARGS_4(x0, x1, x2, x3)		\
+  long _x3tmp = (long) (x3);			\
+  LOAD_ARGS_3 (x0, x1, x2)			\
+  register long _x3 asm ("x3") = _x3tmp;
+# define ASM_ARGS_4	ASM_ARGS_3, "r" (_x3)
+# define LOAD_ARGS_5(x0, x1, x2, x3, x4)	\
+  long _x4tmp = (long) (x4);			\
+  LOAD_ARGS_4 (x0, x1, x2, x3)			\
+  register long _x4 asm ("x4") = _x4tmp;
+# define ASM_ARGS_5	ASM_ARGS_4, "r" (_x4)
+# define LOAD_ARGS_6(x0, x1, x2, x3, x4, x5)	\
+  long _x5tmp = (long) (x5);			\
+  LOAD_ARGS_5 (x0, x1, x2, x3, x4)		\
+  register long _x5 asm ("x5") = _x5tmp;
+# define ASM_ARGS_6	ASM_ARGS_5, "r" (_x5)
+# define LOAD_ARGS_7(x0, x1, x2, x3, x4, x5, x6)\
+  long _x6tmp = (long) (x6);			\
+  LOAD_ARGS_6 (x0, x1, x2, x3, x4, x5)		\
+  register long _x6 asm ("x6") = _x6tmp;
+# define ASM_ARGS_7	ASM_ARGS_6, "r" (_x6)
+
+# undef INTERNAL_SYSCALL_NCS
+# define INTERNAL_SYSCALL_NCS(number, err, nr, args...)	\
+	INTERNAL_SYSCALL_RAW (number, err, nr, args)
+
+#endif	/* __ASSEMBLER__ */
+
+/* Pointer mangling is supported for AArch64.  */
+#if (defined NOT_IN_libc && defined IS_IN_rtld) || \
+  (!defined SHARED && (!defined NOT_IN_libc || defined IS_IN_libpthread))
+# ifdef __ASSEMBLER__
+#  define PTR_MANGLE(dst, src, guard, tmp)                                \
+  LDST_PCREL (ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard_local)); \
+  PTR_MANGLE2 (dst, src, guard)
+/* Use PTR_MANGLE2 for efficiency if guard is already loaded.  */
+#  define PTR_MANGLE2(dst, src, guard)\
+  eor dst, src, guard
+#  define PTR_DEMANGLE(dst, src, guard, tmp)\
+  PTR_MANGLE (dst, src, guard, tmp)
+#  define PTR_DEMANGLE2(dst, src, guard)\
+  PTR_MANGLE2 (dst, src, guard)
+# else
+extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden;
+#  define PTR_MANGLE(var) \
+  (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local)
+#  define PTR_DEMANGLE(var)     PTR_MANGLE (var)
+# endif
+#else
+# ifdef __ASSEMBLER__
+#  define PTR_MANGLE(dst, src, guard, tmp)                             \
+  LDST_GLOBAL (ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard));   \
+  PTR_MANGLE2 (dst, src, guard)
+/* Use PTR_MANGLE2 for efficiency if guard is already loaded.  */
+#  define PTR_MANGLE2(dst, src, guard)\
+  eor dst, src, guard
+#  define PTR_DEMANGLE(dst, src, guard, tmp)\
+  PTR_MANGLE (dst, src, guard, tmp)
+#  define PTR_DEMANGLE2(dst, src, guard)\
+  PTR_MANGLE2 (dst, src, guard)
+# else
+extern uintptr_t __pointer_chk_guard attribute_relro;
+#  define PTR_MANGLE(var) \
+  (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard)
+#  define PTR_DEMANGLE(var) PTR_MANGLE (var)
+# endif
+#endif
+
+#endif /* linux/aarch64/sysdep.h */
diff --git a/sysdeps/unix/sysv/linux/aarch64/ucontext-internal.h b/sysdeps/unix/sysv/linux/aarch64/ucontext-internal.h
new file mode 100644
index 0000000000..8b58114dec
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/ucontext-internal.h
@@ -0,0 +1,45 @@
+/* Copyright (C) 2009-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define SP_ALIGN_SIZE       15
+
+#define SP_ALIGN_MASK	   ~15
+
+/* Size of an X regiser in bytes. */
+#define SZREG                8
+
+/* Size of a V register in bytes. */
+#define SZVREG              16
+
+/* Number of integer parameter passing registers. */
+#define NUMXREGARGS          8
+
+/* Number of FP parameter passing registers. */
+#define NUMDREGARGS          8
+
+/* Size of named integer argument in bytes when passed on the
+   stack.  */
+#define SIZEOF_NAMED_INT     4
+
+/* Size of an anonymous integer argument in bytes when passed on the
+   stack.  */
+#define SIZEOF_ANONYMOUS_INT 8
+
+#define oX21 (oX0 + 21*8)
+#define oFP  (oX0 + 29*8)
+#define oLR  (oX0 + 30*8)
diff --git a/sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym b/sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym
new file mode 100644
index 0000000000..ab3930c173
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym
@@ -0,0 +1,55 @@
+#include <inttypes.h>
+#include <signal.h>
+#include <stddef.h>
+#include <sys/ucontext.h>
+#include <asm/sigcontext.h>
+
+#include "kernel_rt_sigframe.h"
+
+SIG_BLOCK
+SIG_SETMASK
+
+_NSIG8				(_NSIG / 8)
+
+-- Offsets of the fields in the kernel rt_sigframe_t structure.
+#define rt_sigframe(member)	offsetof (struct kernel_rt_sigframe, member)
+
+RT_SIGFRAME_UCONTEXT		rt_sigframe (uc)
+
+RT_SIGFRAME_SIZE		sizeof (struct kernel_rt_sigframe)
+FPSIMD_CONTEXT_SIZE             sizeof (struct fpsimd_context)
+
+#define ucontext(member)	offsetof (ucontext_t, member)
+#define stack(member)		ucontext (uc_stack.member)
+#define mcontext(member)	ucontext (uc_mcontext.member)
+
+UCONTEXT_FLAGS			ucontext (uc_flags)
+UCONTEXT_LINK			ucontext (uc_link)
+UCONTEXT_STACK			ucontext (uc_stack)
+UCONTEXT_MCONTEXT		ucontext (uc_mcontext)
+UCONTEXT_SIGMASK		ucontext (uc_sigmask)
+UCONTEXT_SIZE			sizeof (ucontext_t)
+
+STACK_SP			stack (ss_sp)
+STACK_SIZE			stack (ss_size)
+STACK_FLAGS			stack (ss_flags)
+
+oX0				mcontext (regs)
+oSP				mcontext (sp)
+oPC				mcontext (pc)
+oPSTATE				mcontext (pstate)
+oEXTENSION                      mcontext (__reserved)
+
+#define fpsimd_context(member)  offsetof (struct fpsimd_context, member)
+
+oHEAD                           fpsimd_context (head)
+oV0                             fpsimd_context (vregs)
+oFPSR                           fpsimd_context (fpsr)
+oFPCR                           fpsimd_context (fpcr)
+
+#define aarch64_ctx(member)  offsetof (struct _aarch64_ctx, member)
+
+oMAGIC                          aarch64_ctx (magic)
+oSIZE                           aarch64_ctx (size)
+
+FPSIMD_MAGIC
diff --git a/sysdeps/unix/sysv/linux/aarch64/vfork.S b/sysdeps/unix/sysv/linux/aarch64/vfork.S
new file mode 100644
index 0000000000..d9f2c70748
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/vfork.S
@@ -0,0 +1,49 @@
+/* Copyright (C) 1999-2014 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
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#define _ERRNO_H	1
+#include <bits/errno.h>
+#include <kernel-features.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.  */
+
+ENTRY (__vfork)
+
+#ifdef SAVE_PID
+	SAVE_PID
+#endif
+	mov	x0, #0x4111	/* CLONE_VM | CLONE_VFORK | SIGCHLD */
+	mov	x1, sp
+	DO_CALL (clone, 2)
+#ifdef RESTORE_PID
+	RESTORE_PID
+#endif
+	cmn	x0, #4095
+	b.cs    1f
+	RET
+1:
+	b	SYSCALL_ERROR
+
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)