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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2016-10-04 06:51:35 +0200
committerWaldemar Brodkorb <wbx@openadk.org>2017-02-01 17:48:38 +0100
commitdba942c80dc2cfa5768a856fff98e22a755fdd27 (patch)
tree371e775cb6dfec085945f6834aeb9d3b6de36fbe /libc/sysdeps/linux/aarch64/bits
parent9b457baf8d46329f7d7ee2aa084022bb0df88551 (diff)
add experimental aarch64 support
Ported over from GNU C Library and runtime tested in Qemu.
Diffstat (limited to 'libc/sysdeps/linux/aarch64/bits')
-rw-r--r--libc/sysdeps/linux/aarch64/bits/atomic.h172
-rw-r--r--libc/sysdeps/linux/aarch64/bits/endian.h30
-rw-r--r--libc/sysdeps/linux/aarch64/bits/fcntl.h329
-rw-r--r--libc/sysdeps/linux/aarch64/bits/kernel_types.h42
-rw-r--r--libc/sysdeps/linux/aarch64/bits/setjmp.h33
-rw-r--r--libc/sysdeps/linux/aarch64/bits/stackinfo.h33
-rw-r--r--libc/sysdeps/linux/aarch64/bits/syscalls.h106
-rw-r--r--libc/sysdeps/linux/aarch64/bits/uClibc_arch_features.h38
-rwxr-xr-xlibc/sysdeps/linux/aarch64/bits/uClibc_page.h25
-rw-r--r--libc/sysdeps/linux/aarch64/bits/wordsize.h18
10 files changed, 826 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/aarch64/bits/atomic.h b/libc/sysdeps/linux/aarch64/bits/atomic.h
new file mode 100644
index 000000000..66e2f57d6
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/atomic.h
@@ -0,0 +1,172 @@
+/* Copyright (C) 2003-2017 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 _AARCH64_ATOMIC_MACHINE_H
+#define _AARCH64_ATOMIC_MACHINE_H 1
+
+#define typeof __typeof__
+
+#include <stdint.h>
+#include <sysdep.h>
+
+typedef int8_t atomic8_t;
+typedef int16_t atomic16_t;
+typedef int32_t atomic32_t;
+typedef int64_t atomic64_t;
+
+typedef uint8_t uatomic8_t;
+typedef uint16_t uatomic16_t;
+typedef uint32_t uatomic32_t;
+typedef uint64_t uatomic64_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+#define __HAVE_64B_ATOMICS 1
+#define USE_ATOMIC_COMPILER_BUILTINS 1
+
+/* Compare and exchange.
+ For all "bool" routines, we return FALSE if exchange succesful. */
+
+# define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ })
+
+# define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ })
+
+# define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ })
+
+# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ })
+
+# define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ __oldval; \
+ })
+
+# define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ __oldval; \
+ })
+
+# define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ __oldval; \
+ })
+
+# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
+ ({ \
+ typeof (*mem) __oldval = (oldval); \
+ __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
+ model, __ATOMIC_RELAXED); \
+ __oldval; \
+ })
+
+
+/* Compare and exchange with "acquire" semantics, ie barrier after. */
+
+# define atomic_compare_and_exchange_bool_acq(mem, new, old) \
+ __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
+ mem, new, old, __ATOMIC_ACQUIRE)
+
+# define atomic_compare_and_exchange_val_acq(mem, new, old) \
+ __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
+ mem, new, old, __ATOMIC_ACQUIRE)
+
+/* Compare and exchange with "release" semantics, ie barrier before. */
+
+# define atomic_compare_and_exchange_val_rel(mem, new, old) \
+ __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
+ mem, new, old, __ATOMIC_RELEASE)
+
+
+/* Atomic exchange (without compare). */
+
+# define __arch_exchange_8_int(mem, newval, model) \
+ __atomic_exchange_n (mem, newval, model)
+
+# define __arch_exchange_16_int(mem, newval, model) \
+ __atomic_exchange_n (mem, newval, model)
+
+# define __arch_exchange_32_int(mem, newval, model) \
+ __atomic_exchange_n (mem, newval, model)
+
+# define __arch_exchange_64_int(mem, newval, model) \
+ __atomic_exchange_n (mem, newval, model)
+
+# define atomic_exchange_acq(mem, value) \
+ __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_ACQUIRE)
+
+# define atomic_exchange_rel(mem, value) \
+ __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_RELEASE)
+
+
+/* Atomically add value and return the previous (unincremented) value. */
+
+# define __arch_exchange_and_add_8_int(mem, value, model) \
+ __atomic_fetch_add (mem, value, model)
+
+# define __arch_exchange_and_add_16_int(mem, value, model) \
+ __atomic_fetch_add (mem, value, model)
+
+# define __arch_exchange_and_add_32_int(mem, value, model) \
+ __atomic_fetch_add (mem, value, model)
+
+# define __arch_exchange_and_add_64_int(mem, value, model) \
+ __atomic_fetch_add (mem, value, model)
+
+# define atomic_exchange_and_add_acq(mem, value) \
+ __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
+ __ATOMIC_ACQUIRE)
+
+# define atomic_exchange_and_add_rel(mem, value) \
+ __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, \
+ __ATOMIC_RELEASE)
+
+/* Barrier macro. */
+#define atomic_full_barrier() __sync_synchronize()
+
+#endif
diff --git a/libc/sysdeps/linux/aarch64/bits/endian.h b/libc/sysdeps/linux/aarch64/bits/endian.h
new file mode 100644
index 000000000..a32ebc0d8
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/endian.h
@@ -0,0 +1,30 @@
+/* Copyright (C) 1997-2016 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 _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+/* AArch64 can be either big or little endian. */
+#ifdef __AARCH64EB__
+# define __BYTE_ORDER __BIG_ENDIAN
+#else
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#define __FLOAT_WORD_ORDER __BYTE_ORDER
diff --git a/libc/sysdeps/linux/aarch64/bits/fcntl.h b/libc/sysdeps/linux/aarch64/bits/fcntl.h
new file mode 100644
index 000000000..d05798f31
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/fcntl.h
@@ -0,0 +1,329 @@
+/* O_*, F_*, FD_* bit values for the AArch64 Linux ABI.
+ Copyright (C) 2011-2016 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
+
+#include <sys/types.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+/* open/fcntl. */
+#define O_ACCMODE 0003
+#define O_RDONLY 00
+#define O_WRONLY 01
+#define O_RDWR 02
+#define O_CREAT 0100 /* Not fcntl. */
+#define O_EXCL 0200 /* Not fcntl. */
+#define O_NOCTTY 0400 /* Not fcntl. */
+#define O_TRUNC 01000 /* Not fcntl. */
+#define O_APPEND 02000
+#define O_NONBLOCK 04000
+#define O_NDELAY O_NONBLOCK
+#define O_SYNC 04010000
+#define O_FSYNC O_SYNC
+#define O_ASYNC 020000
+
+#ifdef __USE_GNU
+# define O_DIRECTORY 040000
+# define O_NOFOLLOW 0100000
+# define O_DIRECT 0200000
+# define O_NOATIME 01000000
+# define O_CLOEXEC 02000000
+# define O_PATH 010000000
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+ We define the symbols here but let them do the same as O_SYNC since
+ this is a superset. */
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC O_SYNC /* Synchronize data. */
+# define O_RSYNC O_SYNC /* Synchronize read operations. */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE 0
+#endif
+
+/* Values for the second argument to `fcntl'. */
+#define F_DUPFD 0 /* Duplicate file descriptor. */
+#define F_GETFD 1 /* Get file descriptor flags. */
+#define F_SETFD 2 /* Set file descriptor flags. */
+#define F_GETFL 3 /* Get file status flags. */
+#define F_SETFL 4 /* Set file status flags. */
+#ifndef __USE_FILE_OFFSET64
+# define F_GETLK 5 /* Get record locking info. */
+# define F_SETLK 6 /* Set record locking info (non-blocking). */
+# define F_SETLKW 7 /* Set record locking info (blocking). */
+#else
+# define F_GETLK F_GETLK64 /* Get record locking info. */
+# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
+# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
+#endif
+#define F_GETLK64 5 /* Get record locking info. */
+#define F_SETLK64 6 /* Set record locking info (non-blocking). */
+#define F_SETLKW64 7 /* Set record locking info (blocking). */
+
+#if defined __USE_BSD || defined __USE_UNIX98
+# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
+# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG 10 /* Set number of signal to be sent. */
+# define F_GETSIG 11 /* Get number of signal to be sent. */
+# define F_SETOWN_EX 15 /* Get owner (thread receiving SIGIO). */
+# define F_GETOWN_EX 16 /* Set owner (thread receiving SIGIO). */
+#endif
+
+
+#ifdef __USE_GNU
+# define F_SETLEASE 1024 /* Set a lease. */
+# define F_GETLEASE 1025 /* Enquire what lease is active. */
+# define F_NOTIFY 1026 /* Request notifications on a directory. */
+# define F_SETPIPE_SZ 1031 /* Set pipe page size array. */
+# define F_GETPIPE_SZ 1032 /* Set pipe page size array. */
+#endif
+#ifdef __USE_XOPEN2K8
+# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with
+ close-on-exit set. */
+#endif
+
+/* For F_[GET|SET]FD. */
+#define FD_CLOEXEC 1 /* Actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
+# define F_RDLCK 0 /* Read lock. */
+# define F_WRLCK 1 /* Write lock. */
+# define F_UNLCK 2 /* Remove lock. */
+
+/* For old implementation of BSD flock. */
+#define F_EXLCK 4 /* or 3 */
+#define F_SHLCK 8 /* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for BSD flock, also used by the kernel implementation. */
+# define LOCK_SH 1 /* Shared lock. */
+# define LOCK_EX 2 /* Exclusive lock. */
+# define LOCK_NB 4 /* Or'd with one of the above to prevent
+ blocking. */
+# define LOCK_UN 8 /* Remove lock. */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND 32 /* This is a mandatory flock: */
+# define LOCK_READ 64 /* ... which allows concurrent read operations. */
+# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
+# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY. */
+# define DN_ACCESS 0x00000001 /* File accessed. */
+# define DN_MODIFY 0x00000002 /* File modified. */
+# define DN_CREATE 0x00000004 /* File created. */
+# define DN_DELETE 0x00000008 /* File removed. */
+# define DN_RENAME 0x00000010 /* File renamed. */
+# define DN_ATTRIB 0x00000020 /* File changed attributes. */
+# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
+#endif
+
+struct flock
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+ __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
+
+
+#ifdef __USE_GNU
+/* Owner types. */
+enum __pid_type
+ {
+ F_OWNER_TID = 0, /* Kernel thread. */
+ F_OWNER_PID, /* Process. */
+ F_OWNER_PGRP, /* Process group. */
+ F_OWNER_GID = F_OWNER_PGRP /* Alternative, obsolete name. */
+ };
+
+/* Structure to use with F_GETOWN_EX and F_SETOWN_EX. */
+struct f_owner_ex
+ {
+ enum __pid_type type; /* Owner type of ID. */
+ __pid_t pid; /* ID of owner. */
+ };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+ BSD systems which did not managed to hide these kernel macros. */
+#ifdef __USE_BSD
+# define FAPPEND O_APPEND
+# define FFSYNC O_FSYNC
+# define FASYNC O_ASYNC
+# define FNONBLOCK O_NONBLOCK
+# define FNDELAY O_NDELAY
+#endif /* Use BSD. */
+
+/* Advise to `posix_fadvise'. */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
+# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
+#endif
+
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+/* Flags for SYNC_FILE_RANGE. */
+# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
+ in the range before performing the
+ write. */
+# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
+ dirty pages in the range which are
+ not presently under writeback. */
+# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
+ the range after performing the
+ write. */
+
+/* Flags for SPLICE and VMSPLICE. */
+# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */
+# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing
+ (but we may still block on the fd
+ we splice from/to). */
+# define SPLICE_F_MORE 4 /* Expect more data. */
+# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */
+
+
+/* Flags for fallocate. */
+# define FALLOC_FL_KEEP_SIZE 1 /* Don't extend size of file
+ even if offset + len is
+ greater than file size. */
+# define FALLOC_FL_PUNCH_HOLE 2 /* Create a hole in the file. */
+# define FALLOC_FL_COLLAPSE_RANGE 8 /* Remove a range of a file
+ without leaving a
+ hole. */
+# define FALLOC_FL_ZERO_RANGE 16 /* Convert a range of a
+ file to zeros. */
+
+
+/* File handle structure. */
+struct file_handle
+{
+ unsigned int handle_bytes;
+ int handle_type;
+ /* File identifier. */
+ unsigned char f_handle[0];
+};
+
+/* Maximum handle size (for now). */
+# define MAX_HANDLE_SZ 128
+#endif
+
+__BEGIN_DECLS
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+
+/* Provide kernel hint to read ahead. */
+extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
+ __THROW;
+
+
+/* Selective file content synch'ing.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int sync_file_range (int __fd, __off64_t __offset, __off64_t __count,
+ unsigned int __flags);
+
+
+/* Splice address range into a pipe.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
+ size_t __count, unsigned int __flags);
+
+/* Splice two files together.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
+ __off64_t *__offout, size_t __len,
+ unsigned int __flags);
+
+/* In-kernel implementation of tee for pipe buffers.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern ssize_t tee (int __fdin, int __fdout, size_t __len,
+ unsigned int __flags);
+
+/* Reserve storage for the data of the file associated with FD.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+# ifndef __USE_FILE_OFFSET64
+extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len);
+# else
+# ifdef __REDIRECT
+extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset,
+ __off64_t __len),
+ fallocate64);
+# else
+# define fallocate fallocate64
+# endif
+# endif
+# ifdef __USE_LARGEFILE64
+extern int fallocate64 (int __fd, int __mode, __off64_t __offset,
+ __off64_t __len);
+# endif
+
+
+/* Map file name to file handle. */
+extern int name_to_handle_at (int __dfd, const char *__name,
+ struct file_handle *__handle, int *__mnt_id,
+ int __flags) __THROW;
+
+/* Open file using the file handle.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int open_by_handle_at (int __mountdirfd, struct file_handle *__handle,
+ int __flags);
+
+#endif /* use GNU */
+
+__END_DECLS
diff --git a/libc/sysdeps/linux/aarch64/bits/kernel_types.h b/libc/sysdeps/linux/aarch64/bits/kernel_types.h
new file mode 100644
index 000000000..832b17674
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/kernel_types.h
@@ -0,0 +1,42 @@
+/* Note that we use the exact same include guard #define names
+ * as asm/posix_types.h. This will avoid gratuitous conflicts
+ * with the posix_types.h kernel header, and will ensure that
+ * our private content, and not the kernel header, will win.
+ * -Erik
+ */
+#ifndef __ASM_GENERIC_POSIX_TYPES_H
+#define __ASM_GENERIC_POSIX_TYPES_H
+
+typedef unsigned long __kernel_dev_t;
+typedef unsigned long __kernel_ino_t;
+typedef unsigned int __kernel_mode_t;
+typedef unsigned int __kernel_nlink_t;
+typedef long __kernel_off_t;
+typedef int __kernel_pid_t;
+typedef int __kernel_ipc_pid_t;
+typedef unsigned int __kernel_uid_t;
+typedef unsigned int __kernel_gid_t;
+typedef unsigned long __kernel_size_t;
+typedef long __kernel_ssize_t;
+typedef long __kernel_ptrdiff_t;
+typedef long __kernel_time_t;
+typedef long __kernel_suseconds_t;
+typedef long __kernel_clock_t;
+typedef int __kernel_daddr_t;
+typedef char * __kernel_caddr_t;
+typedef unsigned short __kernel_uid16_t;
+typedef unsigned short __kernel_gid16_t;
+typedef unsigned int __kernel_uid32_t;
+typedef unsigned int __kernel_gid32_t;
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+typedef long long __kernel_loff_t;
+typedef unsigned int __kernel_old_dev_t;
+typedef long __kernel_long_t;
+typedef unsigned long __kernel_ulong_t;
+
+typedef struct {
+ int val[2];
+} __kernel_fsid_t;
+
+#endif /* __ASM_GENERIC_POSIX_TYPES_H */
diff --git a/libc/sysdeps/linux/aarch64/bits/setjmp.h b/libc/sysdeps/linux/aarch64/bits/setjmp.h
new file mode 100644
index 000000000..fff8616c6
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/setjmp.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 1997-2016 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_SETJMP_H
+#define _BITS_SETJMP_H 1
+
+#if !defined _SETJMP_H && !defined _PTHREAD_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef _ASM
+/* Jump buffer contains:
+ x19-x28, x29(fp), x30(lr), (x31)sp, d8-d15. Other registers are not
+ saved. */
+__extension__ typedef unsigned long long __jmp_buf [22];
+
+#endif
+#endif
diff --git a/libc/sysdeps/linux/aarch64/bits/stackinfo.h b/libc/sysdeps/linux/aarch64/bits/stackinfo.h
new file mode 100644
index 000000000..78f326203
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/stackinfo.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 2001-2016 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 file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+#include <elf.h>
+
+/* On AArch64 the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+/* Default to a non-executable stack. */
+#define DEFAULT_STACK_PERMS (PF_R|PF_W)
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/aarch64/bits/syscalls.h b/libc/sysdeps/linux/aarch64/bits/syscalls.h
new file mode 100644
index 000000000..3c0d840ea
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/syscalls.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2016 by Waldemar Brodkorb <wbx@uclibc-ng.org>
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ * ported from GNU libc
+ */
+
+/* Copyright (C) 2005-2016 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_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+#ifndef __ASSEMBLER__
+#include <errno.h>
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+ ({ long _sys_result; \
+ { \
+ register long _x8 __asm__ ("x8"); \
+ LOAD_ARGS_##nr (args) \
+ _x8 = (name); \
+ \
+ __asm__ volatile ( \
+ "svc 0 // syscall " # name \
+ : "=r" (_x0) : "r"(_x8) ASM_ARGS_##nr \
+ : "memory"); \
+ \
+ _sys_result = _x0; \
+ } \
+ _sys_result; })
+
+/* Macros for setting up inline __asm__ input regs */
+# define ASM_ARGS_0
+# define ASM_ARGS_1 , "r" (_x0)
+# define ASM_ARGS_2 ASM_ARGS_1, "r" (_x1)
+# define ASM_ARGS_3 ASM_ARGS_2, "r" (_x2)
+# define ASM_ARGS_4 ASM_ARGS_3, "r" (_x3)
+# define ASM_ARGS_5 ASM_ARGS_4, "r" (_x4)
+# define ASM_ARGS_6 ASM_ARGS_5, "r" (_x5)
+# define ASM_ARGS_7 ASM_ARGS_6, "r" (_x6)
+
+/* Macros for converting sys-call wrapper args into sys call args */
+# define LOAD_ARGS_0() \
+ register long _x0 __asm__ ("x0");
+# define LOAD_ARGS_1(x0) \
+ long _x0tmp; \
+ LOAD_ARGS_0 () \
+ _x0tmp = (long) (x0); \
+ _x0 = _x0tmp;
+# define LOAD_ARGS_2(x0, x1) \
+ register long _x1 __asm__ ("x1"); \
+ long _x1tmp; \
+ LOAD_ARGS_1 (x0) \
+ _x1tmp = (long) (x1); \
+ _x1 = _x1tmp;
+# define LOAD_ARGS_3(x0, x1, x2) \
+ register long _x2 __asm__ ("x2"); \
+ long _x2tmp; \
+ LOAD_ARGS_2 (x0, x1) \
+ _x2tmp = (long) (x2); \
+ _x2 = _x2tmp;
+# define LOAD_ARGS_4(x0, x1, x2, x3) \
+ register long _x3 __asm__ ("x3"); \
+ long _x3tmp; \
+ LOAD_ARGS_3 (x0, x1, x2) \
+ _x3tmp = (long) (x3); \
+ _x3 = _x3tmp;
+# define LOAD_ARGS_5(x0, x1, x2, x3, x4) \
+ register long _x4 __asm__ ("x4"); \
+ long _x4tmp; \
+ LOAD_ARGS_4 (x0, x1, x2, x3) \
+ _x4tmp = (long) (x4); \
+ _x4 = _x4tmp;
+# define LOAD_ARGS_6(x0, x1, x2, x3, x4, x5) \
+ register long _x5 __asm__ ("x5"); \
+ long _x5tmp; \
+ LOAD_ARGS_5 (x0, x1, x2, x3, x4) \
+ _x5tmp = (long) (x5); \
+ _x5 = _x5tmp;
+# define LOAD_ARGS_7(x0, x1, x2, x3, x4, x5, x6)\
+ register long _x6 __asm__ ("x6"); \
+ long _x6tmp; \
+ LOAD_ARGS_6 (x0, x1, x2, x3, x4, x5) \
+ _x6tmp = (long) (x6); \
+ _x6 = _x6tmp;
+
+#endif /* ! __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */
diff --git a/libc/sysdeps/linux/aarch64/bits/uClibc_arch_features.h b/libc/sysdeps/linux/aarch64/bits/uClibc_arch_features.h
new file mode 100644
index 000000000..7cae090ec
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/uClibc_arch_features.h
@@ -0,0 +1,38 @@
+/*
+ * Track misc arch-specific features that aren't config options
+ */
+
+#ifndef _BITS_UCLIBC_ARCH_FEATURES_H
+#define _BITS_UCLIBC_ARCH_FEATURES_H
+
+/* instruction used when calling abort() to kill yourself */
+#define __UCLIBC_ABORT_INSTRUCTION__ "bl abort"
+
+/* can your target use syscall6() for mmap ? */
+#define __UCLIBC_MMAP_HAS_6_ARGS__
+
+/* does your target have a broken create_module() ? */
+#define __UCLIBC_BROKEN_CREATE_MODULE__
+
+/* does your target have to worry about older [gs]etrlimit() ? */
+#undef __UCLIBC_HANDLE_OLDER_RLIMIT__
+
+/* does your target have an asm .set ? */
+#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__
+
+/* define if target supports .weak */
+#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__
+
+/* define if target supports .weakext */
+#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__
+
+/* define if target supports CFI pseudo ops */
+#define __UCLIBC_HAVE_ASM_CFI_DIRECTIVES__
+
+/* define if target supports IEEE signed zero floats */
+#define __UCLIBC_HAVE_SIGNED_ZERO__
+
+/* only weird assemblers generally need this */
+#undef __UCLIBC_ASM_LINE_SEP__
+
+#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */
diff --git a/libc/sysdeps/linux/aarch64/bits/uClibc_page.h b/libc/sysdeps/linux/aarch64/bits/uClibc_page.h
new file mode 100755
index 000000000..4f92abcf8
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/uClibc_page.h
@@ -0,0 +1,25 @@
+/*
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+ */
+
+#ifndef _UCLIBC_PAGE_H
+#define _UCLIBC_PAGE_H
+
+/*
+ * AARCH64 supports 4k, 16k, 64k pages (build time).
+ */
+
+#include <features.h>
+
+#if defined(__CONFIG_AARCH64_PAGE_SIZE_64K__)
+#define PAGE_SHIFT 16
+#elif defined(__CONFIG_AARCH64_PAGE_SIZE_16K__)
+#define PAGE_SHIFT 14
+#else
+#define PAGE_SHIFT 12
+#endif
+
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#endif /* _UCLIBC_PAGE_H */
diff --git a/libc/sysdeps/linux/aarch64/bits/wordsize.h b/libc/sysdeps/linux/aarch64/bits/wordsize.h
new file mode 100644
index 000000000..0944f9e26
--- /dev/null
+++ b/libc/sysdeps/linux/aarch64/bits/wordsize.h
@@ -0,0 +1,18 @@
+/* Copyright (C) 1999-2016 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 __WORDSIZE 64