Finish syncing up arm

23 files changed, 3315 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/arm/bits/cmathcalls.h b/libc/sysdeps/linux/arm/bits/cmathcalls.h
new file mode 100644
index 000000000..c680c6d8e
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/cmathcalls.h
@@ -0,0 +1,158 @@
+/* Prototype declarations for complex math functions;
+   helper file for <complex.h>.
+   Copyright (C) 1997, 1998, 2001 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* NOTE: Because of the special way this file is used by <complex.h>, this
+   file must NOT be protected from multiple inclusion as header files
+   usually are.
+
+   This file provides prototype declarations for the math functions.
+   Most functions are declared using the macro:
+
+   __MATHCALL (NAME, (ARGS...));
+
+   This means there is a function `NAME' returning `double' and a function
+   `NAMEf' returning `float'.  Each place `_Mdouble_' appears in the
+   prototype, that is actually `double' in the prototype for `NAME' and
+   `float' in the prototype for `NAMEf'.  Reentrant variant functions are
+   called `NAME_r' and `NAMEf_r'.
+
+   Functions returning other types like `int' are declared using the macro:
+
+   __MATHDECL (TYPE, NAME, (ARGS...));
+
+   This is just like __MATHCALL but for a function returning `TYPE'
+   instead of `_Mdouble_'.  In all of these cases, there is still
+   both a `NAME' and a `NAMEf' that takes `float' arguments.  */
+
+#ifndef _COMPLEX_H
+#error "Never use <bits/cmathcalls.h> directly; include <complex.h> instead."
+#endif
+
+#define _Mdouble_complex_ _Mdouble_ _Complex
+
+
+/* Trigonometric functions.  */
+
+/* Arc cosine of Z.  */
+__MATHCALL (cacos, (_Mdouble_complex_ __z));
+/* Arc sine of Z.  */
+__MATHCALL (casin, (_Mdouble_complex_ __z));
+/* Arc tangent of Z.  */
+__MATHCALL (catan, (_Mdouble_complex_ __z));
+
+/* Cosine of Z.  */
+__MATHCALL (ccos, (_Mdouble_complex_ __z));
+/* Sine of Z.  */
+__MATHCALL (csin, (_Mdouble_complex_ __z));
+/* Tangent of Z.  */
+__MATHCALL (ctan, (_Mdouble_complex_ __z));
+
+
+/* Hyperbolic functions.  */
+
+/* Hyperbolic arc cosine of Z.  */
+__MATHCALL (cacosh, (_Mdouble_complex_ __z));
+/* Hyperbolic arc sine of Z.  */
+__MATHCALL (casinh, (_Mdouble_complex_ __z));
+/* Hyperbolic arc tangent of Z.  */
+__MATHCALL (catanh, (_Mdouble_complex_ __z));
+
+/* Hyperbolic cosine of Z.  */
+__MATHCALL (ccosh, (_Mdouble_complex_ __z));
+/* Hyperbolic sine of Z.  */
+__MATHCALL (csinh, (_Mdouble_complex_ __z));
+/* Hyperbolic tangent of Z.  */
+__MATHCALL (ctanh, (_Mdouble_complex_ __z));
+
+
+/* Exponential and logarithmic functions.  */
+
+/* Exponential function of Z.  */
+__MATHCALL (cexp, (_Mdouble_complex_ __z));
+
+/* Natural logarithm of Z.  */
+__MATHCALL (clog, (_Mdouble_complex_ __z));
+
+#ifdef __USE_GNU
+/* The base 10 logarithm is not defined by the standard but to implement
+   the standard C++ library it is handy.  */
+__MATHCALL (clog10, (_Mdouble_complex_ __z));
+#endif
+
+/* Power functions.  */
+
+/* Return X to the Y power.  */
+__MATHCALL (cpow, (_Mdouble_complex_ __x, _Mdouble_complex_ __y));
+
+/* Return the square root of Z.  */
+__MATHCALL (csqrt, (_Mdouble_complex_ __z));
+
+
+/* Absolute value, conjugates, and projection.  */
+
+/* Absolute value of Z.  */
+__MATHDECL (_Mdouble_,cabs, (_Mdouble_complex_ __z));
+
+/* Argument value of Z.  */
+__MATHDECL (_Mdouble_,carg, (_Mdouble_complex_ __z));
+
+/* Complex conjugate of Z.  */
+__MATHCALL (conj, (_Mdouble_complex_ __z));
+
+/* Projection of Z onto the Riemann sphere.  */
+__MATHCALL (cproj, (_Mdouble_complex_ __z));
+
+
+/* Decomposing complex values.  */
+
+/* Imaginary part of Z.  */
+__MATHDECL (_Mdouble_,cimag, (_Mdouble_complex_ __z));
+
+/* Real part of Z.  */
+__MATHDECL (_Mdouble_,creal, (_Mdouble_complex_ __z));
+
+
+/* Now some optimized versions.  GCC has handy notations for these
+   functions.  Recent GCC handles these as builtin functions so does
+   not need inlines.  */
+#if defined __GNUC__ && !__GNUC_PREREQ (2, 97) && defined __OPTIMIZE__
+
+/* Imaginary part of Z.  */
+extern __inline _Mdouble_
+__MATH_PRECNAME(cimag) (_Mdouble_complex_ __z) __THROW
+{
+  return __imag__ __z;
+}
+
+/* Real part of Z.  */
+extern __inline _Mdouble_
+__MATH_PRECNAME(creal) (_Mdouble_complex_ __z) __THROW
+{
+  return __real__ __z;
+}
+
+/* Complex conjugate of Z.  */
+extern __inline _Mdouble_complex_
+__MATH_PRECNAME(conj) (_Mdouble_complex_ __z) __THROW
+{
+  return __extension__ ~__z;
+}
+
+#endif
diff --git a/libc/sysdeps/linux/arm/bits/environments.h b/libc/sysdeps/linux/arm/bits/environments.h
new file mode 100644
index 000000000..c3829927b
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/environments.h
@@ -0,0 +1,75 @@
+/* Copyright (C) 1999, 2001 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _UNISTD_H
+# error "Never include this file directly.  Use <unistd.h> instead"
+#endif
+
+#include <bits/wordsize.h>
+
+/* This header should define the following symbols under the described
+   situations.  A value `1' means that the model is always supported,
+   `-1' means it is never supported.  Undefined means it cannot be
+   statically decided.
+
+   _POSIX_V6_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V6_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
+
+   _POSIX_V6_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V6_LPBIG_OFFBIG  64bit long and pointers and large off_t type
+
+   The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
+   _XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
+   and are available only for compatibility.
+*/
+
+#if __WORDSIZE == 64
+
+/* We can never provide environments with 32-bit wide pointers.  */
+# define _POSIX_V6_ILP32_OFF32	-1
+# define _POSIX_V6_ILP32_OFFBIG	-1
+# define _XBS5_ILP32_OFF32	-1
+# define _XBS5_ILP32_OFFBIG	-1
+/* We also have no use (for now) for an environment with bigger pointers
+   and offsets.  */
+# define _POSIX_V6_LPBIG_OFFBIG	-1
+# define _XBS5_LPBIG_OFFBIG	-1
+
+/* By default we have 64-bit wide `long int', pointers and `off_t'.  */
+# define _POSIX_V6_LP64_OFF64	1
+# define _XBS5_LP64_OFF64	1
+
+#else /* __WORDSIZE == 32 */
+
+/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
+   and all platforms support LFS.  */
+# define _POSIX_V6_ILP32_OFF32	1
+# define _POSIX_V6_ILP32_OFFBIG	1
+# define _XBS5_ILP32_OFF32	1
+# define _XBS5_ILP32_OFFBIG	1
+
+/* We optionally provide an environment with the above size but an 64-bit
+   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */
+
+/* We can never provide environments with 64-bit wide pointers.  */
+# define _POSIX_V6_LP64_OFF64	-1
+# define _POSIX_V6_LPBIG_OFFBIG	-1
+# define _XBS5_LP64_OFF64	-1
+# define _XBS5_LPBIG_OFFBIG	-1
+
+#endif /* __WORDSIZE == 32 */
diff --git a/libc/sysdeps/linux/arm/bits/fenv.h b/libc/sysdeps/linux/arm/bits/fenv.h
new file mode 100644
index 000000000..7bd242385
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/fenv.h
@@ -0,0 +1,58 @@
+/* Copyright (C) 1997, 1998, 1999 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+/* Define bits representing exceptions in the FPU status word.  */
+enum
+  {
+    FE_INVALID = 1,
+#define FE_INVALID FE_INVALID
+    FE_DIVBYZERO = 2,
+#define FE_DIVBYZERO FE_DIVBYZERO
+    FE_OVERFLOW = 4,
+#define FE_OVERFLOW FE_OVERFLOW
+    FE_UNDERFLOW = 8,
+#define FE_UNDERFLOW FE_UNDERFLOW
+  };
+
+/* Amount to shift by to convert an exception to a mask bit.  */
+#define FE_EXCEPT_SHIFT	16
+
+/* All supported exceptions.  */
+#define FE_ALL_EXCEPT	\
+	(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW)
+
+/* The ARM FPU basically only supports round-to-nearest.  Other rounding
+   modes exist, but you have to encode them in the actual instruction.  */
+#define FE_TONEAREST	0
+
+/* Type representing exception flags. */
+typedef unsigned long int fexcept_t;
+
+/* Type representing floating-point environment.  */
+typedef struct
+  {
+    unsigned long int __cw;
+  }
+fenv_t;
+
+/* If the default argument is used we use this value.  */
+#define FE_DFL_ENV	((fenv_t *) -1l)
diff --git a/libc/sysdeps/linux/arm/bits/fenvinline.h b/libc/sysdeps/linux/arm/bits/fenvinline.h
new file mode 100644
index 000000000..42f77b561
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/fenvinline.h
@@ -0,0 +1,8 @@
+/* This file provides inline versions of floating-pint environment
+   handling functions.  If there were any.  */
+
+#ifndef __NO_MATH_INLINES
+
+/* Here is where the code would go.  */
+
+#endif
diff --git a/libc/sysdeps/linux/arm/bits/initspin.h b/libc/sysdeps/linux/arm/bits/initspin.h
new file mode 100644
index 000000000..af19d44e6
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/initspin.h
@@ -0,0 +1,28 @@
+/* Generic definitions for spinlock initializers.
+   Copyright (C) 2000, 2001 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Initial value of a spinlock.  Most platforms should use zero,
+   unless they only implement a "test and clear" operation instead of
+   the usual "test and set". */
+#define __LT_SPINLOCK_INIT 0
+
+/* Macros for lock initializers, using the above definition. */
+#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
+#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
+#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }
diff --git a/libc/sysdeps/linux/arm/bits/libc-lock.h b/libc/sysdeps/linux/arm/bits/libc-lock.h
new file mode 100644
index 000000000..dbd9cc14f
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/libc-lock.h
@@ -0,0 +1,317 @@
+/* libc-internal interface for mutex locks.  LinuxThreads version.
+   Copyright (C) 1996,1997,1998,1999,2000,2001 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _BITS_LIBC_LOCK_H
+#define _BITS_LIBC_LOCK_H 1
+
+#include <pthread.h>
+
+/* Mutex type.  */
+#ifdef _LIBC
+typedef pthread_mutex_t __libc_lock_t;
+typedef pthread_rwlock_t __libc_rwlock_t;
+#else
+typedef struct __libc_lock_opaque__ __libc_lock_t;
+typedef struct __libc_rwlock_opaque__ __libc_rwlock_t;
+#endif
+
+/* Type for key to thread-specific data.  */
+typedef pthread_key_t __libc_key_t;
+
+/* Define a lock variable NAME with storage class CLASS.  The lock must be
+   initialized with __libc_lock_init before it can be used (or define it
+   with __libc_lock_define_initialized, below).  Use `extern' for CLASS to
+   declare a lock defined in another module.  In public structure
+   definitions you must use a pointer to the lock structure (i.e., NAME
+   begins with a `*'), because its storage size will not be known outside
+   of libc.  */
+#define __libc_lock_define(CLASS,NAME) \
+  CLASS __libc_lock_t NAME;
+#define __libc_rwlock_define(CLASS,NAME) \
+  CLASS __libc_rwlock_t NAME;
+
+/* Define an initialized lock variable NAME with storage class CLASS.
+
+   For the C library we take a deeper look at the initializer.  For
+   this implementation all fields are initialized to zero.  Therefore
+   we don't initialize the variable which allows putting it into the
+   BSS section.  (Except on PA-RISC and other odd architectures, where
+   initialized locks must be set to one due to the lack of normal
+   atomic operations.) */
+
+#if __LT_SPINLOCK_INIT == 0
+#  define __libc_lock_define_initialized(CLASS,NAME) \
+  CLASS __libc_lock_t NAME;
+#else
+#  define __libc_lock_define_initialized(CLASS,NAME) \
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
+#define __libc_rwlock_define_initialized(CLASS,NAME) \
+  CLASS __libc_rwlock_t NAME = PTHREAD_RWLOCK_INITIALIZER;
+
+/* Define an initialized recursive lock variable NAME with storage
+   class CLASS.  */
+#define __libc_lock_define_initialized_recursive(CLASS,NAME) \
+  CLASS __libc_lock_t NAME = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+/* Initialize the named lock variable, leaving it in a consistent, unlocked
+   state.  */
+#define __libc_lock_init(NAME) \
+  (__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0);
+#define __libc_rwlock_init(NAME) \
+  (__pthread_rwlock_init != NULL ? __pthread_rwlock_init (&(NAME), NULL) : 0);
+
+/* Same as last but this time we initialize a recursive mutex.  */
+#define __libc_lock_init_recursive(NAME) \
+  do {									      \
+    if (__pthread_mutex_init != NULL)					      \
+      {									      \
+	pthread_mutexattr_t __attr;					      \
+	__pthread_mutexattr_init (&__attr);				      \
+	__pthread_mutexattr_settype (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \
+	__pthread_mutex_init (&(NAME), &__attr);			      \
+	__pthread_mutexattr_destroy (&__attr);				      \
+      }									      \
+  } while (0);
+
+/* Finalize the named lock variable, which must be locked.  It cannot be
+   used again until __libc_lock_init is called again on it.  This must be
+   called on a lock variable before the containing storage is reused.  */
+#define __libc_lock_fini(NAME) \
+  (__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0);
+#define __libc_rwlock_fini(NAME) \
+  (__pthread_rwlock_destroy != NULL ? __pthread_rwlock_destroy (&(NAME)) : 0);
+
+/* Finalize recursive named lock.  */
+#define __libc_lock_fini_recursive(NAME) __libc_lock_fini (NAME)
+
+/* Lock the named lock variable.  */
+#define __libc_lock_lock(NAME) \
+  (__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0);
+#define __libc_rwlock_rdlock(NAME) \
+  (__pthread_rwlock_rdlock != NULL ? __pthread_rwlock_rdlock (&(NAME)) : 0);
+#define __libc_rwlock_wrlock(NAME) \
+  (__pthread_rwlock_wrlock != NULL ? __pthread_rwlock_wrlock (&(NAME)) : 0);
+
+/* Lock the recursive named lock variable.  */
+#define __libc_lock_lock_recursive(NAME) __libc_lock_lock (NAME)
+
+/* Try to lock the named lock variable.  */
+#define __libc_lock_trylock(NAME) \
+  (__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0)
+#define __libc_rwlock_tryrdlock(NAME) \
+  (__pthread_rwlock_tryrdlock != NULL \
+   ? __pthread_rwlock_tryrdlock (&(NAME)) : 0)
+#define __libc_rwlock_trywrlock(NAME) \
+  (__pthread_rwlock_trywrlock != NULL \
+   ? __pthread_rwlock_trywrlock (&(NAME)) : 0)
+
+/* Try to lock the recursive named lock variable.  */
+#define __libc_lock_trylock_recursive(NAME) __libc_lock_trylock (NAME)
+
+/* Unlock the named lock variable.  */
+#define __libc_lock_unlock(NAME) \
+  (__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0);
+#define __libc_rwlock_unlock(NAME) \
+  (__pthread_rwlock_unlock != NULL ? __pthread_rwlock_unlock (&(NAME)) : 0);
+
+/* Unlock the recursive named lock variable.  */
+#define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock (NAME)
+
+
+/* Define once control variable.  */
+#if PTHREAD_ONCE_INIT == 0
+/* Special case for static variables where we can avoid the initialization
+   if it is zero.  */
+# define __libc_once_define(CLASS, NAME) \
+  CLASS pthread_once_t NAME
+#else
+# define __libc_once_define(CLASS, NAME) \
+  CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT
+#endif
+
+/* Call handler iff the first call.  */
+#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \
+  do {									      \
+    if (__pthread_once != NULL)						      \
+      __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION));		      \
+    else if ((ONCE_CONTROL) == PTHREAD_ONCE_INIT) {			      \
+      INIT_FUNCTION ();							      \
+      (ONCE_CONTROL) = !PTHREAD_ONCE_INIT;				      \
+    }									      \
+  } while (0)
+
+
+/* Start critical region with cleanup.  */
+#define __libc_cleanup_region_start(FCT, ARG) \
+  { struct _pthread_cleanup_buffer _buffer;				      \
+    int _avail = _pthread_cleanup_push_defer != NULL;			      \
+    if (_avail) {							      \
+      _pthread_cleanup_push_defer (&_buffer, (FCT), (ARG));		      \
+    }
+
+/* End critical region with cleanup.  */
+#define __libc_cleanup_region_end(DOIT) \
+    if (_avail) {							      \
+      _pthread_cleanup_pop_restore (&_buffer, (DOIT));			      \
+    }									      \
+  }
+
+/* Sometimes we have to exit the block in the middle.  */
+#define __libc_cleanup_end(DOIT) \
+    if (_avail) {							      \
+      _pthread_cleanup_pop_restore (&_buffer, (DOIT));			      \
+    }
+
+/* Create thread-specific key.  */
+#define __libc_key_create(KEY, DESTRUCTOR) \
+  (__pthread_key_create != NULL ? __pthread_key_create (KEY, DESTRUCTOR) : 1)
+
+/* Get thread-specific data.  */
+#define __libc_getspecific(KEY) \
+  (__pthread_getspecific != NULL ? __pthread_getspecific (KEY) : NULL)
+
+/* Set thread-specific data.  */
+#define __libc_setspecific(KEY, VALUE) \
+  (__pthread_setspecific != NULL ? __pthread_setspecific (KEY, VALUE) : 0)
+
+
+/* Register handlers to execute before and after `fork'.  */
+#define __libc_atfork(PREPARE, PARENT, CHILD) \
+  (__pthread_atfork != NULL ? __pthread_atfork (PREPARE, PARENT, CHILD) : 0)
+
+/* Functions that are used by this file and are internal to the GNU C
+   library.  */
+
+extern int __pthread_mutex_init (pthread_mutex_t *__mutex,
+				 __const pthread_mutexattr_t *__mutex_attr);
+
+extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex);
+
+extern int __pthread_mutex_trylock (pthread_mutex_t *__mutex);
+
+extern int __pthread_mutex_lock (pthread_mutex_t *__mutex);
+
+extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex);
+
+extern int __pthread_mutexattr_init (pthread_mutexattr_t *__attr);
+
+extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *__attr);
+
+extern int __pthread_mutexattr_settype (pthread_mutexattr_t *__attr,
+					int __kind);
+
+#ifdef __USE_UNIX98
+extern int __pthread_rwlock_init (pthread_rwlock_t *__rwlock,
+				  __const pthread_rwlockattr_t *__attr);
+
+extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock);
+#endif
+
+extern int __pthread_key_create (pthread_key_t *__key,
+				 void (*__destr_function) (void *));
+
+extern int __pthread_setspecific (pthread_key_t __key,
+				  __const void *__pointer);
+
+extern void *__pthread_getspecific (pthread_key_t __key);
+
+extern int __pthread_once (pthread_once_t *__once_control,
+			   void (*__init_routine) (void));
+
+extern int __pthread_atfork (void (*__prepare) (void),
+			     void (*__parent) (void),
+			     void (*__child) (void));
+
+
+
+/* Make the pthread functions weak so that we can elide them from
+   single-threaded processes.  */
+#ifndef __NO_WEAK_PTHREAD_ALIASES
+# ifdef weak_extern
+#  if _LIBC
+#   include <bp-sym.h>
+#  else
+#   define BP_SYM (sym) sym
+#  endif
+weak_extern (BP_SYM (__pthread_mutex_init))
+weak_extern (BP_SYM (__pthread_mutex_destroy))
+weak_extern (BP_SYM (__pthread_mutex_lock))
+weak_extern (BP_SYM (__pthread_mutex_trylock))
+weak_extern (BP_SYM (__pthread_mutex_unlock))
+weak_extern (BP_SYM (__pthread_mutexattr_init))
+weak_extern (BP_SYM (__pthread_mutexattr_destroy))
+weak_extern (BP_SYM (__pthread_mutexattr_settype))
+weak_extern (BP_SYM (__pthread_rwlock_init))
+weak_extern (BP_SYM (__pthread_rwlock_destroy))
+weak_extern (BP_SYM (__pthread_rwlock_rdlock))
+weak_extern (BP_SYM (__pthread_rwlock_tryrdlock))
+weak_extern (BP_SYM (__pthread_rwlock_wrlock))
+weak_extern (BP_SYM (__pthread_rwlock_trywrlock))
+weak_extern (BP_SYM (__pthread_rwlock_unlock))
+weak_extern (BP_SYM (__pthread_key_create))
+weak_extern (BP_SYM (__pthread_setspecific))
+weak_extern (BP_SYM (__pthread_getspecific))
+weak_extern (BP_SYM (__pthread_once))
+weak_extern (__pthread_initialize)
+weak_extern (__pthread_atfork)
+weak_extern (BP_SYM (_pthread_cleanup_push_defer))
+weak_extern (BP_SYM (_pthread_cleanup_pop_restore))
+# else
+#  pragma weak __pthread_mutex_init
+#  pragma weak __pthread_mutex_destroy
+#  pragma weak __pthread_mutex_lock
+#  pragma weak __pthread_mutex_trylock
+#  pragma weak __pthread_mutex_unlock
+#  pragma weak __pthread_mutexattr_init
+#  pragma weak __pthread_mutexattr_destroy
+#  pragma weak __pthread_mutexattr_settype
+#  pragma weak __pthread_rwlock_destroy
+#  pragma weak __pthread_rwlock_rdlock
+#  pragma weak __pthread_rwlock_tryrdlock
+#  pragma weak __pthread_rwlock_wrlock
+#  pragma weak __pthread_rwlock_trywrlock
+#  pragma weak __pthread_rwlock_unlock
+#  pragma weak __pthread_key_create
+#  pragma weak __pthread_setspecific
+#  pragma weak __pthread_getspecific
+#  pragma weak __pthread_once
+#  pragma weak __pthread_initialize
+#  pragma weak __pthread_atfork
+#  pragma weak _pthread_cleanup_push_defer
+#  pragma weak _pthread_cleanup_pop_restore
+# endif
+#endif
+
+/* We need portable names for some functions.  E.g., when they are
+   used as argument to __libc_cleanup_region_start.  */
+#define __libc_mutex_unlock __pthread_mutex_unlock
+
+#endif	/* bits/libc-lock.h */
diff --git a/libc/sysdeps/linux/arm/bits/locale.h b/libc/sysdeps/linux/arm/bits/locale.h
new file mode 100644
index 000000000..50064b53e
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/locale.h
@@ -0,0 +1,44 @@
+/* Definition of locale category symbol values.
+   Copyright (C) 2001 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#if !defined _LOCALE_H && !defined _LANGINFO_H
+# error "Never use <bits/locale.h> directly; include <locale.h> instead."
+#endif
+
+#ifndef _BITS_LOCALE_H
+#define _BITS_LOCALE_H	1
+
+enum
+{
+  __LC_CTYPE = 0,
+  __LC_NUMERIC = 1,
+  __LC_TIME = 2,
+  __LC_COLLATE = 3,
+  __LC_MONETARY = 4,
+  __LC_MESSAGES = 5,
+  __LC_ALL = 6,
+  __LC_PAPER = 7,
+  __LC_NAME = 8,
+  __LC_ADDRESS = 9,
+  __LC_TELEPHONE = 10,
+  __LC_MEASUREMENT = 11,
+  __LC_IDENTIFICATION = 12
+};
+
+#endif	/* bits/locale.h */
diff --git a/libc/sysdeps/linux/arm/bits/nan.h b/libc/sysdeps/linux/arm/bits/nan.h
new file mode 100644
index 000000000..6d88b551b
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/nan.h
@@ -0,0 +1,48 @@
+/* `NAN' constant for IEEE 754 machines.
+   Copyright (C) 1992, 1996, 1997, 1999 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/nan.h> directly; include <math.h> instead."
+#endif
+
+
+/* IEEE Not A Number.  */
+
+#ifdef	__GNUC__
+
+# define NAN \
+  (__extension__                                                            \
+   ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })  \
+    { __l: 0x7fc00000UL }).__d)
+
+#else
+
+# include <endian.h>
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+#  define __nan_bytes		{ 0x7f, 0xc0, 0, 0 }
+# endif
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define __nan_bytes		{ 0, 0, 0xc0, 0x7f }
+# endif
+
+static union { unsigned char __c[4]; float __d; } __nan_union = { __nan_bytes };
+# define NAN	(__nan_union.__d)
+
+#endif	/* GCC.  */
diff --git a/libc/sysdeps/linux/arm/bits/netdb.h b/libc/sysdeps/linux/arm/bits/netdb.h
new file mode 100644
index 000000000..41dc73193
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/netdb.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 1996, 1997, 1998, 1999, 2000 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _NETDB_H
+# error "Never include <bits/netdb.h> directly; use <netdb.h> instead."
+#endif
+
+
+/* Description of data base entry for a single network.  NOTE: here a
+   poor assumption is made.  The network number is expected to fit
+   into an unsigned long int variable.  */
+struct netent
+{
+  char *n_name;			/* Official name of network.  */
+  char **n_aliases;		/* Alias list.  */
+  int n_addrtype;		/* Net address type.  */
+  uint32_t n_net;		/* Network number.  */
+};
diff --git a/libc/sysdeps/linux/arm/bits/pthreadtypes.h b/libc/sysdeps/linux/arm/bits/pthreadtypes.h
new file mode 100644
index 000000000..3ee5c4813
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/pthreadtypes.h