Merge remote branch 'origin/master' into nptl

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

31 files changed, 143 insertions, 1805 deletions

diff --git a/libc/sysdeps/linux/alpha/bits/mman.h b/libc/sysdeps/linux/alpha/bits/mman.h
index 2f0e56491..cafad4a24 100644
--- a/libc/sysdeps/linux/alpha/bits/mman.h
+++ b/libc/sysdeps/linux/alpha/bits/mman.h
@@ -71,6 +71,8 @@
 # define MAP_NORESERVE	  0x10000	/* Don't check for reservations.  */
 # define MAP_POPULATE	  0x20000	/* Populate (prefault) pagetables.  */
 # define MAP_NONBLOCK	  0x40000	/* Do not block on IO.  */
+# define MAP_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
+					   be uninitialized. */
 #endif
 
 /* Flags to `msync'.  */
diff --git a/libc/sysdeps/linux/avr32/bits/mman.h b/libc/sysdeps/linux/avr32/bits/mman.h
deleted file mode 100644
index 5f6e3c37a..000000000
--- a/libc/sysdeps/linux/avr32/bits/mman.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/AVR32 version.
-   Copyright (C) 1997, 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 _SYS_MMAN_H
-# error "Never include this file directly.  Use <sys/mman.h> instead"
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-# define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
-# define MAP_NONBLOCK	0x10000		/* do not block on IO */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advise to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-# define MADV_REMOVE	 9	/* Remove these pages and resources.  */
-# define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	 11	/* Do inherit across fork.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/bfin/bits/mman.h b/libc/sysdeps/linux/bfin/bits/mman.h
deleted file mode 100644
index c57238726..000000000
--- a/libc/sysdeps/linux/bfin/bits/mman.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/m68k version.
-   Copyright (C) 1997 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-# define MAP_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
-					   be uninitialized. */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0x0	/* No further special treatment.  */
-# define MADV_RANDOM	 0x1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 0x2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 0x3	/* Will need these pages.  */
-# define MADV_DONTNEED	 0x4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/common/bits/confname.h b/libc/sysdeps/linux/common/bits/confname.h
index ab7fdee9d..ec4b72a22 100644
--- a/libc/sysdeps/linux/common/bits/confname.h
+++ b/libc/sysdeps/linux/common/bits/confname.h
@@ -1,5 +1,5 @@
 /* `sysconf', `pathconf', and `confstr' NAME values.  Generic version.
-   Copyright (C) 1993,1995-1998,2000,2001,2003,2004
+   Copyright (C) 1993,1995-1998,2000,2001,2003,2004,2007,2009
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -498,13 +498,39 @@ enum
 
     _SC_IPV6 = _SC_LEVEL1_ICACHE_SIZE + 50,
 #define _SC_IPV6			_SC_IPV6
-    _SC_RAW_SOCKETS
+    _SC_RAW_SOCKETS,
 #define _SC_RAW_SOCKETS			_SC_RAW_SOCKETS
+
+    _SC_V7_ILP32_OFF32,
+#define _SC_V7_ILP32_OFF32		_SC_V7_ILP32_OFF32
+    _SC_V7_ILP32_OFFBIG,
+#define _SC_V7_ILP32_OFFBIG		_SC_V7_ILP32_OFFBIG
+    _SC_V7_LP64_OFF64,
+#define _SC_V7_LP64_OFF64		_SC_V7_LP64_OFF64
+    _SC_V7_LPBIG_OFFBIG,
+#define _SC_V7_LPBIG_OFFBIG		_SC_V7_LPBIG_OFFBIG
+
+    _SC_SS_REPL_MAX,
+#define _SC_SS_REPL_MAX			_SC_SS_REPL_MAX
+
+    _SC_TRACE_EVENT_NAME_MAX,
+#define _SC_TRACE_EVENT_NAME_MAX	_SC_TRACE_EVENT_NAME_MAX
+    _SC_TRACE_NAME_MAX,
+#define _SC_TRACE_NAME_MAX		_SC_TRACE_NAME_MAX
+    _SC_TRACE_SYS_MAX,
+#define _SC_TRACE_SYS_MAX		_SC_TRACE_SYS_MAX
+    _SC_TRACE_USER_EVENT_MAX,
+#define _SC_TRACE_USER_EVENT_MAX	_SC_TRACE_USER_EVENT_MAX
+
+    _SC_XOPEN_STREAMS,
+#define _SC_XOPEN_STREAMS		_SC_XOPEN_STREAMS
+
+    _SC_THREAD_ROBUST_PRIO_INHERIT,
+#define _SC_THREAD_ROBUST_PRIO_INHERIT	_SC_THREAD_ROBUST_PRIO_INHERIT
+    _SC_THREAD_ROBUST_PRIO_PROTECT,
+#define _SC_THREAD_ROBUST_PRIO_PROTECT	_SC_THREAD_ROBUST_PRIO_PROTECT
   };
 
-#if (defined __USE_POSIX2 || defined __USE_UNIX98 \
-     || defined __USE_FILE_OFFSET64 || defined __USE_LARGEFILE64 \
-     || defined __USE_LARGEFILE)
 /* Values for the NAME argument to `confstr'.  */
 enum
   {
@@ -512,7 +538,21 @@ enum
 #define _CS_PATH		_CS_PATH
 
     _CS_V6_WIDTH_RESTRICTED_ENVS,
-# define _CS_V6_WIDTH_RESTRICTED_ENVS	_CS_V6_WIDTH_RESTRICTED_ENVS
+#define _CS_V6_WIDTH_RESTRICTED_ENVS	_CS_V6_WIDTH_RESTRICTED_ENVS
+#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS	_CS_V6_WIDTH_RESTRICTED_ENVS
+
+    _CS_GNU_LIBC_VERSION,
+#define _CS_GNU_LIBC_VERSION	_CS_GNU_LIBC_VERSION
+    _CS_GNU_LIBPTHREAD_VERSION,
+#define _CS_GNU_LIBPTHREAD_VERSION	_CS_GNU_LIBPTHREAD_VERSION
+
+    _CS_V5_WIDTH_RESTRICTED_ENVS,
+#define _CS_V5_WIDTH_RESTRICTED_ENVS	_CS_V5_WIDTH_RESTRICTED_ENVS
+#define _CS_POSIX_V5_WIDTH_RESTRICTED_ENVS	_CS_V5_WIDTH_RESTRICTED_ENVS
+
+    _CS_V7_WIDTH_RESTRICTED_ENVS,
+#define _CS_V7_WIDTH_RESTRICTED_ENVS	_CS_V7_WIDTH_RESTRICTED_ENVS
+#define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS	_CS_V7_WIDTH_RESTRICTED_ENVS
 
 # if (defined __USE_FILE_OFFSET64 || defined __USE_LARGEFILE64 \
      || defined __USE_LARGEFILE)
@@ -568,6 +608,7 @@ enum
     _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS,
 #define _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS
 # endif
+
 # ifdef __USE_XOPEN2K
     _CS_POSIX_V6_ILP32_OFF32_CFLAGS,
 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS _CS_POSIX_V6_ILP32_OFF32_CFLAGS
@@ -599,8 +640,42 @@ enum
 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
     _CS_POSIX_V6_LPBIG_OFFBIG_LIBS,
 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
-    _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
+    _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS,
 #define _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
 # endif
+
+# ifdef __USE_XOPEN2K8
+    _CS_POSIX_V7_ILP32_OFF32_CFLAGS,
+#define _CS_POSIX_V7_ILP32_OFF32_CFLAGS _CS_POSIX_V7_ILP32_OFF32_CFLAGS
+    _CS_POSIX_V7_ILP32_OFF32_LDFLAGS,
+#define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS _CS_POSIX_V7_ILP32_OFF32_LDFLAGS
+    _CS_POSIX_V7_ILP32_OFF32_LIBS,
+#define _CS_POSIX_V7_ILP32_OFF32_LIBS _CS_POSIX_V7_ILP32_OFF32_LIBS
+    _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS,
+#define _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS
+    _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS,
+#define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS
+    _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS,
+#define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS
+    _CS_POSIX_V7_ILP32_OFFBIG_LIBS,
+#define _CS_POSIX_V7_ILP32_OFFBIG_LIBS _CS_POSIX_V7_ILP32_OFFBIG_LIBS
+    _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS,
+#define _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS
+    _CS_POSIX_V7_LP64_OFF64_CFLAGS,
+#define _CS_POSIX_V7_LP64_OFF64_CFLAGS _CS_POSIX_V7_LP64_OFF64_CFLAGS
+    _CS_POSIX_V7_LP64_OFF64_LDFLAGS,
+#define _CS_POSIX_V7_LP64_OFF64_LDFLAGS _CS_POSIX_V7_LP64_OFF64_LDFLAGS
+    _CS_POSIX_V7_LP64_OFF64_LIBS,
+#define _CS_POSIX_V7_LP64_OFF64_LIBS _CS_POSIX_V7_LP64_OFF64_LIBS
+    _CS_POSIX_V7_LP64_OFF64_LINTFLAGS,
+#define _CS_POSIX_V7_LP64_OFF64_LINTFLAGS _CS_POSIX_V7_LP64_OFF64_LINTFLAGS
+    _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS,
+#define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS
+    _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS,
+#define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS
+    _CS_POSIX_V7_LPBIG_OFFBIG_LIBS,
+#define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS _CS_POSIX_V7_LPBIG_OFFBIG_LIBS
+    _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS
+#define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS
+# endif
   };
-#endif
diff --git a/libc/sysdeps/linux/common/bits/environments.h b/libc/sysdeps/linux/common/bits/environments.h
index 4617dc45f..548ea7f84 100644
--- a/libc/sysdeps/linux/common/bits/environments.h
+++ b/libc/sysdeps/linux/common/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004, 2009 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
@@ -27,30 +27,36 @@
    `-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_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
 
-   _POSIX_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
+   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
 
-   The macros _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.
+   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+   used in previous versions of the Unix standard and are available
+   only for compatibility.
 */
 
 #if __WORDSIZE == 64
 
 /* We can never provide environments with 32-bit wide pointers.  */
+# define _POSIX_V7_ILP32_OFF32	-1
+# define _POSIX_V7_ILP32_OFFBIG	-1
 # define _POSIX_V6_ILP32_OFF32	-1
 # define _POSIX_V6_ILP32_OFFBIG	-1
 # define _XBS5_ILP32_OFF32	-1
 # define _XBS5_ILP32_OFFBIG	-1
 /* We also have no use (for now) for an environment with bigger pointers
    and offsets.  */
+# define _POSIX_V7_LPBIG_OFFBIG	-1
 # define _POSIX_V6_LPBIG_OFFBIG	-1
 # define _XBS5_LPBIG_OFFBIG	-1
 
 /* By default we have 64-bit wide `long int', pointers and `off_t'.  */
+# define _POSIX_V7_LP64_OFF64	1
 # define _POSIX_V6_LP64_OFF64	1
 # define _XBS5_LP64_OFF64	1
 
@@ -58,15 +64,19 @@
 
 /* By default we have 32-bit wide `int', `long int', pointers and `off_t'
    and all platforms support LFS.  */
+# define _POSIX_V7_ILP32_OFF32	1
+# define _POSIX_V7_ILP32_OFFBIG	1
 # define _POSIX_V6_ILP32_OFF32	1
 # define _POSIX_V6_ILP32_OFFBIG	1
 # define _XBS5_ILP32_OFF32	1
 # define _XBS5_ILP32_OFFBIG	1
 
 /* We optionally provide an environment with the above size but an 64-bit
-   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */
+   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
 
 /* We can never provide environments with 64-bit wide pointers.  */
+# define _POSIX_V7_LP64_OFF64	-1
+# define _POSIX_V7_LPBIG_OFFBIG	-1
 # define _POSIX_V6_LP64_OFF64	-1
 # define _POSIX_V6_LPBIG_OFFBIG	-1
 # define _XBS5_LP64_OFF64	-1
diff --git a/libc/sysdeps/linux/common/bits/in.h b/libc/sysdeps/linux/common/bits/in.h
index 6880a2e63..1f2b81793 100644
--- a/libc/sysdeps/linux/common/bits/in.h
+++ b/libc/sysdeps/linux/common/bits/in.h
@@ -101,6 +101,7 @@ struct in_pktinfo
     struct in_addr ipi_addr;		/* Header destination address  */
   };
 
+#ifdef __UCLIBC_HAS_IPV6__
 /* Options for use with `getsockopt' and `setsockopt' at the IPv6 level.
    The first word in the comment at the right is the data type used;
    "bool" means a boolean value stored in an `int'.  */
@@ -168,3 +169,4 @@ struct in_pktinfo
 #define IPV6_RTHDR_STRICT	1	/* Hop must be a neighbour.  */
 
 #define IPV6_RTHDR_TYPE_0	0	/* IPv6 Routing header type 0.  */
+#endif /* __UCLIBC_HAS_IPV6__ */
diff --git a/libc/sysdeps/linux/arm/bits/mman.h b/libc/sysdeps/linux/common/bits/mman-common.h
index 828ec944c..f00cb1ab3 100644
--- a/libc/sysdeps/linux/arm/bits/mman.h
+++ b/libc/sysdeps/linux/common/bits/mman-common.h
@@ -1,5 +1,5 @@
-/* Definitions for POSIX memory map interface.  Linux/ARM version.
-   Copyright (C) 1997, 2000, 2003, 2005, 2006 Free Software Foundation, Inc.
+/* Definitions for POSIX memory map interface.  Linux/generic version.
+   Copyright (C) 1997,2000,2003,2005,2006,2009 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
@@ -63,6 +63,9 @@
 # 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_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
+					   be uninitialized. */
 #endif
 
 /* Flags to `msync'.  */
@@ -83,14 +86,17 @@
 
 /* Advice to `madvise'.  */
 #ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-# define MADV_REMOVE	 9	/* Remove these pages and resources.  */
-# define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	 11	/* Do inherit across fork.  */
+# define MADV_NORMAL	  0	/* No further special treatment.  */
+# define MADV_RANDOM	  1	/* Expect random page references.  */
+# define MADV_SEQUENTIAL  2	/* Expect sequential page references.  */
+# define MADV_WILLNEED	  3	/* Will need these pages.  */
+# define MADV_DONTNEED	  4	/* Don't need these pages.  */
+# define MADV_REMOVE	  9	/* Remove these pages and resources.  */
+# define MADV_DONTFORK	  10	/* Do not inherit across fork.  */
+# define MADV_DOFORK	  11	/* Do inherit across fork.  */
+# define MADV_MERGEABLE	  12	/* KSM may merge identical pages.  */
+# define MADV_UNMERGEABLE 13	/* KSM may not merge identical pages.  */
+# define MADV_HWPOISON	  100	/* Poison a page for testing.  */
 #endif
 
 /* The POSIX people had to invent similar names for the same things.  */
diff --git a/libc/sysdeps/linux/common/bits/mman.h b/libc/sysdeps/linux/common/bits/mman.h
index 0c1590270..11b8e2a8b 100644
--- a/libc/sysdeps/linux/common/bits/mman.h
+++ b/libc/sysdeps/linux/common/bits/mman.h
@@ -1,97 +1 @@
-/* Definitions for BSD-style memory management.
-   Copyright (C) 1994-1998,2000,01,02,05 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.  */
-
-/* These are the bits used by 4.4 BSD and its derivatives.  On systems
-   (such as GNU) where these facilities are not system services but can be
-   emulated in the C library, these are the definitions we emulate.  */
-
-#ifndef _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define	PROT_NONE	 0x00	/* No access.  */
-#define	PROT_READ	 0x04	/* Pages can be read.  */
-#define	PROT_WRITE	 0x02	/* Pages can be written.  */
-#define	PROT_EXEC	 0x01	/* Pages can be executed.  */
-
-/* Flags contain mapping type, sharing type and options.  */
-
-/* Mapping type (must choose one and only one of these).  */
-#ifdef __USE_BSD
-# define MAP_FILE	 0x0001	/* Mapped from a file or device.  */
-# define MAP_ANON	 0x0002	/* Allocated from anonymous virtual memory.  */
-# define MAP_TYPE	 0x000f	/* Mask for type field.  */
-# ifdef __USE_MISC
-#  define MAP_ANONYMOUS  MAP_ANON /* Linux name. */
-# endif
-#endif
-
-/* Sharing types (must choose one and only one of these).  */
-#ifdef __USE_BSD
-# define MAP_COPY	 0x0020	/* Virtual copy of region at mapping time.  */
-#endif
-#define	MAP_SHARED	 0x0010	/* Share changes.  */
-#define	MAP_PRIVATE	 0x0000	/* Changes private; copy pages on write.  */
-
-/* Other flags.  */
-#define	MAP_FIXED	 0x0100	/* Map address must be exactly as requested. */
-#ifdef __USE_BSD
-# define MAP_NOEXTEND	 0x0200	/* For MAP_FILE, don't change file size.  */
-# define MAP_HASSEMPHORE 0x0400	/* Region may contain semaphores.  */
-# define MAP_INHERIT	 0x0800	/* Region is retained after exec.  */
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		0		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1		/* Mapping address may change.  */
-# define MREMAP_FIXED	2		/* Fifth argument sets new address.  */
-#endif
-
-/* Flags for `mlockall' (can be OR'd together).  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
+#include <bits/mman-common.h>
diff --git a/libc/sysdeps/linux/common/futimens.c b/libc/sysdeps/linux/common/futimens.c
index 090dfa69c..32b21395b 100644
--- a/libc/sysdeps/linux/common/futimens.c
+++ b/libc/sysdeps/linux/common/futimens.c
@@ -8,9 +8,14 @@
  */
 
 #include <sys/syscall.h>
-#define __need_timespec
 #include <time.h>
 #ifdef __NR_utimensat
+/* To avoid superfluous warnings about passing NULL to the non-null annotated
+ * 2nd param "__path" below, we bypass inclusion of sys/stat.h and use
+ * a non annotated, local decl.
+ * Note that due to not including the header, we have to alias the call
+ * manually.
+ */
 extern int utimensat (int __fd, __const char *__path,
 	__const struct timespec __times[2],
 	int __flags) __THROW;
diff --git a/libc/sysdeps/linux/cris/bits/mman.h b/libc/sysdeps/linux/cris/bits/mman.h
deleted file mode 100644
index ec9d2a558..000000000
--- a/libc/sysdeps/linux/cris/bits/mman.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/CRIS version.
-   Copyright (C) 1997, 2000, 2001, 2003 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/e1/bits/mman.h b/libc/sysdeps/linux/e1/bits/mman.h
deleted file mode 100644
index 7f644b99b..000000000
--- a/libc/sysdeps/linux/e1/bits/mman.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/m68k version.
-   Copyright (C) 1997 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
diff --git a/libc/sysdeps/linux/frv/bits/mman.h b/libc/sysdeps/linux/frv/bits/mman.h
deleted file mode 100644
index 0802005f4..000000000
--- a/libc/sysdeps/linux/frv/bits/mman.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/frv version.
-   Copyright (C) 1997 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
diff --git a/libc/sysdeps/linux/h8300/bits/mman.h b/libc/sysdeps/linux/h8300/bits/mman.h
deleted file mode 100644
index 7f644b99b..000000000
--- a/libc/sysdeps/linux/h8300/bits/mman.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/m68k version.
-   Copyright (C) 1997 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
diff --git a/libc/sysdeps/linux/hppa/bits/mman.h b/libc/sysdeps/linux/hppa/bits/mman.h
index 54531ecf2..7f9bf4ed6 100644
--- a/libc/sysdeps/linux/hppa/bits/mman.h
+++ b/libc/sysdeps/linux/hppa/bits/mman.h
@@ -45,6 +45,8 @@
 #define MAP_GROWSDOWN	0x8000		/* stack-like segment */
 #define MAP_POPULATE	0x10000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
+#define MAP_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
+					  be uninitialized. */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/libc/sysdeps/linux/i386/bits/mman.h b/libc/sysdeps/linux/i386/bits/mman.h
deleted file mode 100644
index 00cb98239..000000000
--- a/libc/sysdeps/linux/i386/bits/mman.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/i386 version.
-   Copyright (C) 1997, 2000, 2003, 2005, 2006 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* 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.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-# define MADV_REMOVE	 9	/* Remove these pages and resources.  */
-# define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	 11	/* Do inherit across fork.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/i960/bits/mman.h b/libc/sysdeps/linux/i960/bits/mman.h
deleted file mode 100644
index 48f46c274..000000000
--- a/libc/sysdeps/linux/i960/bits/mman.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/i960 version.
-   Copyright (C) 1997, 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/ia64/bits/mman.h b/libc/sysdeps/linux/ia64/bits/mman.h
index a27a30fc0..a9d56ed07 100644
--- a/libc/sysdeps/linux/ia64/bits/mman.h
+++ b/libc/sysdeps/linux/ia64/bits/mman.h
@@ -1,104 +1,4 @@
-/* Definitions for POSIX memory map interface.  Linux/ia64 version.
-   Copyright (C) 1997,1998,2000,2003,2005,2006 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	  0x1		/* Page can be read.  */
-#define PROT_WRITE	  0x2		/* Page can be written.  */
-#define PROT_EXEC	  0x4		/* Page can be executed.  */
-#define PROT_NONE	  0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	  0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	  0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	  0x01		/* Share changes.  */
-#define MAP_PRIVATE	  0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	  0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	  0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	  0
-# define MAP_ANONYMOUS	  0x20		/* Don't use a file.  */
-# define MAP_ANON	  MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
 #ifdef __USE_MISC
-# define MAP_GROWSDOWN	  0x00100	/* Stack-like segment.  */
 # define MAP_GROWSUP	  0x00200	/* Register 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.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	  0x1		/* Sync memory asynchronously.  */
-#define MS_INVALIDATE	  0x2		/* Invalidate the caches.  */
-#define MS_SYNC		  0x4		/* Synchronous memory sync.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	  0x1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	  0x2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-# define MADV_REMOVE	 9	/* Remove these pages and resources.  */
-# define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	 11	/* Do inherit across fork.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
 #endif
+#include <bits/mman-common.h>
diff --git a/libc/sysdeps/linux/m68k/bits/mman.h b/libc/sysdeps/linux/m68k/bits/mman.h
deleted file mode 100644
index fbec1a03f..000000000
--- a/libc/sysdeps/linux/m68k/bits/mman.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/m68k version.
-   Copyright (C) 1997, 2000, 2003, 2005 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* 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.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-# define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	 11	/* Do inherit across fork.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/microblaze/bits/mman.h b/libc/sysdeps/linux/microblaze/bits/mman.h
deleted file mode 100644
index d051c8fa7..000000000
--- a/libc/sysdeps/linux/microblaze/bits/mman.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/microblaze version.
-   Copyright (C) 1997, 1999, 2001, 2002 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.  */
-
-/* These are the bits used by 4.4 BSD and its derivatives.  On systems
-   (such as GNU) where these facilities are not system services but can be
-   emulated in the C library, these are the definitions we emulate.  */
-
-#ifndef _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
-
-
-/* Flags for `mlockall' (can be OR'd together).  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
diff --git a/libc/sysdeps/linux/mips/bits/mman.h b/libc/sysdeps/linux/mips/bits/mman.h
index 47d33933a..c480be46e 100644
--- a/libc/sysdeps/linux/mips/bits/mman.h
+++ b/libc/sysdeps/linux/mips/bits/mman.h
@@ -66,6 +66,8 @@
 # define MAP_LOCKED	0x8000		/* pages are locked */
 # define MAP_POPULATE   0x10000         /* populate (prefault) pagetables */
 # define MAP_NONBLOCK   0x20000         /* do not block on IO */
+# define MAP_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
+					   be uninitialized. */
 #endif
 
 /* Flags to `msync'.  */
diff --git a/libc/sysdeps/linux/nios/bits/mman.h b/libc/sysdeps/linux/nios/bits/mman.h
deleted file mode 100644
index 7f644b99b..000000000
--- a/libc/sysdeps/linux/nios/bits/mman.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/m68k version.
-   Copyright (C) 1997 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
diff --git a/libc/sysdeps/linux/nios2/bits/mman.h b/libc/sysdeps/linux/nios2/bits/mman.h
deleted file mode 100644
index 2fa35e663..000000000
--- a/libc/sysdeps/linux/nios2/bits/mman.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/m68k version.
-   Copyright (C) 1997 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
diff --git a/libc/sysdeps/linux/powerpc/bits/mman.h b/libc/sysdeps/linux/powerpc/bits/mman.h
index e03ab7ff8..2d234c5fc 100644
--- a/libc/sysdeps/linux/powerpc/bits/mman.h
+++ b/libc/sysdeps/linux/powerpc/bits/mman.h
@@ -63,6 +63,8 @@
 # define MAP_NORESERVE	0x00040		/* Don't check for reservations.  */
 # define MAP_POPULATE	0x08000		/* Populate (prefault) pagetables.  */
 # define MAP_NONBLOCK	0x10000		/* Do not block on IO.  */
+# define MAP_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
+					   be uninitialized. */
 #endif
 
 /* Flags to `msync'.  */
diff --git a/libc/sysdeps/linux/sh/bits/mman.h b/libc/sysdeps/linux/sh/bits/mman.h
deleted file mode 100644
index 7a6b572a4..000000000
--- a/libc/sysdeps/linux/sh/bits/mman.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/SH version.
-   Copyright (C) 1997,1999,2000,2003,2005,2006 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 _SYS_MMAN_H
-# error "Never include this file directly.  Use <sys/mman.h> instead"
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-# define MAP_POPULATE	0x8000		/* Populate (prefault) pagetables.  */
-# define MAP_NONBLOCK	0x10000		/* Do not block on IO.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-# define MADV_REMOVE	 9	/* Remove these pages and resources.  */
-# define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	 11	/* Do inherit across fork.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/sh64/bits/mman.h b/libc/sysdeps/linux/sh64/bits/mman.h
deleted file mode 100644
index afa889dbf..000000000
--- a/libc/sysdeps/linux/sh64/bits/mman.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* Cloned for uClibc by Paul Mundt, December 2003 */
-/* Modified by SuperH, Inc. September 2003 */
-
-/* Definitions for POSIX memory map interface.  Linux/SH version.
-   Copyright (C) 1997, 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 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 _SYS_MMAN_H
-# error "Never include this file directly.  Use <sys/mman.h> instead"
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/sparc/bits/mman.h b/libc/sysdeps/linux/sparc/bits/mman.h
index be2b7eb28..74921e4c5 100644
--- a/libc/sysdeps/linux/sparc/bits/mman.h
+++ b/libc/sysdeps/linux/sparc/bits/mman.h
@@ -65,6 +65,8 @@
 # define _MAP_NEW	0x80000000	/* Binary compatibility with SunOS.  */
 # define MAP_POPULATE	0x8000		/* Populate (prefault) pagetables.  */
 # define MAP_NONBLOCK	0x10000		/* Do not block on IO.  */
+# define MAP_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
+					   be uninitialized. */
 #endif
 
 /* Flags to `msync'.  */
diff --git a/libc/sysdeps/linux/v850/bits/mman.h b/libc/sysdeps/linux/v850/bits/mman.h
deleted file mode 100644
index 4393d0344..000000000
--- a/libc/sysdeps/linux/v850/bits/mman.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/v850 version.
-   Copyright (C) 1997, 1999, 2001, 2002 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.  */
-
-/* These are the bits used by 4.4 BSD and its derivatives.  On systems
-   (such as GNU) where these facilities are not system services but can be
-   emulated in the C library, these are the definitions we emulate.  */
-
-#ifndef _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
-
-
-/* Flags for `mlockall' (can be OR'd together).  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
diff --git a/libc/sysdeps/linux/vax/bits/mman.h b/libc/sysdeps/linux/vax/bits/mman.h
deleted file mode 100644
index e29dfcc61..000000000
--- a/libc/sysdeps/linux/vax/bits/mman.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux/i386 version.
-   Copyright (C) 1997, 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
-#endif
-
-/* These are Linux-specific.  */
-#ifdef __USE_MISC
-# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
-# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
-# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
-# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
-# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1		/* Mapping address may change.  */
-# define MREMAP_FIXED	2		/* Fifth argument sets new address.  */
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
diff --git a/libc/sysdeps/linux/x86_64/bits/mman.h b/libc/sysdeps/linux/x86_64/bits/mman.h
index 535c9edcf..a0b7a0e97 100644
--- a/libc/sysdeps/linux/x86_64/bits/mman.h
+++ b/libc/sysdeps/linux/x86_64/bits/mman.h
@@ -1,104 +1,4 @@
-/* Definitions for POSIX memory map interface.  Linux/x86_64 version.
-   Copyright (C) 2001, 2003, 2005, 2006 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 _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
 #ifdef __USE_MISC
-# define MAP_FILE	0
-# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# define MAP_ANON	MAP_ANONYMOUS
 # define MAP_32BIT	0x40		/* Only give out 32-bit addresses.  */
 #endif
-
-/* 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.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall'.  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-# define MADV_REMOVE	 9	/* Remove these pages and resources.  */
-# define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	 11	/* Do inherit across fork.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
+#include <bits/mman-common.h>
diff --git a/libc/sysdeps/linux/x86_64/bits/wordsize.h b/libc/sysdeps/linux/x86_64/bits/wordsize.h
index 0cce4ead9..e55524100 100644
--- a/libc/sysdeps/linux/x86_64/bits/wordsize.h
+++ b/libc/sysdeps/linux/x86_64/bits/wordsize.h
@@ -2,7 +2,8 @@
 
 #if defined __x86_64__
 # define __WORDSIZE	64
-/*# define __WORDSIZE_COMPAT32	1*/
+/* This makes /var/run/utmp compatible with 32-bit environment: */
+# define __WORDSIZE_COMPAT32	1
 #else
 # define __WORDSIZE	32
 #endif
diff --git a/libc/sysdeps/linux/xtensa/bits/mman.h b/libc/sysdeps/linux/xtensa/bits/mman.h
index d3beae6aa..fead3ac20 100644
--- a/libc/sysdeps/linux/xtensa/bits/mman.h
+++ b/libc/sysdeps/linux/xtensa/bits/mman.h
@@ -64,6 +64,8 @@
 # define MAP_NORESERVE	0x0400		/* Don't check for reservations.  */
 # define MAP_POPULATE	0x10000		/* Populate (prefault) pagetables.  */
 # define MAP_NONBLOCK	0x20000		/* Do not block on IO.  */
+# define MAP_UNINITIALIZE 0x4000000     /* For anonymous mmap, memory could
+					   be uninitialized. */
 #endif
 
 /* Flags to `msync'.  */