posix_opt.h: update to glibc's NPTL version

add uClibc_posix_opt.h to handle uClibc specific options/features

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include/unistd.h

@@ -171,6 +171,7 @@ __BEGIN_DECLS
    */
 
 #include <bits/posix_opt.h>
+#include <bits/uClibc_posix_opt.h>
 
 /* Get the environment definitions from Unix98.  */
 #ifdef __USE_UNIX98

libc/sysdeps/linux/common/bits/posix_opt.h

@@ -1,5 +1,5 @@
 /* Define POSIX options for Linux.
-   Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1996-2004, 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
@@ -17,8 +17,8 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef	_POSIX_OPT_H
+#ifndef	_BITS_POSIX_OPT_H
-#define	_POSIX_OPT_H	1
+#define	_BITS_POSIX_OPT_H	1
 
 /* Job control is supported.  */
 #define	_POSIX_JOB_CONTROL	1
@@ -60,6 +60,9 @@
 /* X/Open realtime support is available.  */
 #define _XOPEN_REALTIME	1
 
+/* X/Open thread realtime support is available.  */
+#define _XOPEN_REALTIME_THREADS	1
+
 /* XPG4.2 shared memory is supported.  */
 #define	_XOPEN_SHM	1
 
@@ -79,10 +82,15 @@
 /* We support user-defined stacks.  */
 #define _POSIX_THREAD_ATTR_STACKADDR	200112L
 
-#ifdef __UCLIBC_HAS_REALTIME__
+/* We support priority inheritence.  */
+#define _POSIX_THREAD_PRIO_INHERIT	200112L
+
+/* We support priority protection, though only for non-robust
+   mutexes.  */
+#define _POSIX_THREAD_PRIO_PROTECT	200112L
+
 /* We support POSIX.1b semaphores.  */
 #define _POSIX_SEMAPHORES	200112L
-#endif
 
 /* Real-time signals are supported.  */
 #define _POSIX_REALTIME_SIGNALS	200112L
@@ -98,12 +106,10 @@
 /* The LFS support in asynchronous I/O is also available.  */
 #define _LFS64_ASYNCHRONOUS_IO	1
 
-#ifdef __UCLIBC_HAS_LFS__
 /* The rest of the LFS is also available.  */
 #define _LFS_LARGEFILE		1
 #define _LFS64_LARGEFILE	1
 #define _LFS64_STDIO		1
-#endif
 
 /* POSIX shared memory objects are implemented.  */
 #define _POSIX_SHARED_MEMORY_OBJECTS	200112L
@@ -114,10 +120,8 @@
 /* Clock support in threads must be also checked at runtime.  */
 #define _POSIX_THREAD_CPUTIME	0
 
-#ifdef __UCLIBC_HAS_REGEX__
 /* GNU libc provides regular expression handling.  */
 #define _POSIX_REGEXP	1
-#endif
 
 /* Reader/Writer locks are available.  */
 #define _POSIX_READER_WRITER_LOCKS	200112L
@@ -157,15 +161,11 @@
 /* Advisory information interfaces are available.  */
 #define _POSIX_ADVISORY_INFO	200112L
 
-#ifdef __UCLIBC_HAS_IPV6__
 /* IPv6 support is available.  */
 #define _POSIX_IPV6	200112L
-#endif
 
-#ifdef __UCLIBC_HAS_SOCKET__
 /* Raw socket support is available.  */
 #define _POSIX_RAW_SOCKETS	200112L
-#endif
 
 /* We have at least one terminal.  */
 #define _POSIX2_CHAR_TERM	200112L
@@ -183,8 +183,4 @@
 /* Typed memory objects are not available.  */
 #define _POSIX_TYPED_MEMORY_OBJECTS	-1
 
-/* No support for priority inheritance or protection so far.  */
-#define _POSIX_THREAD_PRIO_INHERIT	-1
-#define _POSIX_THREAD_PRIO_PROTECT	-1
-
 #endif /* posix_opt.h */

libc/sysdeps/linux/common/bits/uClibc_posix_opt.h

@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+/*
+ * Never include this file directly; use <unistd.h> instead.
+ */
+
+#ifndef	_BITS_UCLIBC_POSIX_OPT_H
+#define	_BITS_UCLIBC_POSIX_OPT_H	1
+
+/* This file works correctly only if posix_opt.h is the NPTL version */
+#ifndef _POSIX_THREADS
+# error posix_opt.h was incorrectly updated, use the NPTL version from glibc
+#endif
+
+/* change first options based on what glibc does */
+
+#ifndef __UCLIBC_HAS_THREADS_NATIVE__
+# undef _POSIX_THREAD_PROCESS_SHARED
+# define _POSIX_THREAD_PROCESS_SHARED	-1
+# undef _POSIX_CLOCK_SELECTION
+# define _POSIX_CLOCK_SELECTION		-1
+# undef _POSIX_THREAD_PRIO_INHERIT
+# define _POSIX_THREAD_PRIO_INHERIT	-1
+# undef _POSIX_THREAD_PRIO_PROTECT
+# define _POSIX_THREAD_PRIO_PROTECT	-1
+#endif
+
+/* this has to be adapted to uClibc, not all are thread related */
+#ifndef __UCLIBC_HAS_THREADS__
+# undef _XOPEN_REALTIME_THREADS
+# undef _POSIX_THREADS
+# undef _POSIX_REENTRANT_FUNCTIONS
+# undef _POSIX_THREAD_SAFE_FUNCTIONS
+# undef _POSIX_THREAD_PRIORITY_SCHEDULING
+# undef _POSIX_THREAD_ATTR_STACKSIZE
+# undef _POSIX_THREAD_ATTR_STACKADDR
+# undef _POSIX_THREAD_PRIO_INHERIT
+# undef _POSIX_THREAD_PRIO_PROTECT
+# undef _POSIX_SEMAPHORES
+# undef _POSIX_ASYNCHRONOUS_IO
+# undef _POSIX_ASYNC_IO
+# undef _LFS_ASYNCHRONOUS_IO
+# undef _POSIX_PRIORITIZED_IO
+# undef _LFS64_ASYNCHRONOUS_IO
+# undef _POSIX_CPUTIME
+# undef _POSIX_THREAD_CPUTIME
+# undef _POSIX_READER_WRITER_LOCKS
+# undef _POSIX_TIMEOUTS
+# undef _POSIX_SPIN_LOCKS
+# undef _POSIX_BARRIERS
+# undef _POSIX_MESSAGE_PASSING
+# undef _POSIX_THREAD_PROCESS_SHARED
+# undef _POSIX_CLOCK_SELECTION
+# undef _POSIX_ADVISORY_INFO
+/*# undef _POSIX_RAW_SOCKETS*/
+/*# undef _POSIX2_CHAR_TERM*/
+# undef _POSIX_SPORADIC_SERVER
+# undef _POSIX_THREAD_SPORADIC_SERVER
+/*# undef _POSIX_TRACE
+# undef _POSIX_TRACE_EVENT_FILTER
+# undef _POSIX_TRACE_INHERIT
+# undef _POSIX_TRACE_LOG
+# undef _POSIX_TYPED_MEMORY_OBJECTS*/
+#endif
+
+/* were in earlier version, used by sysconf */
+#define	_POSIX_POLL	1
+#define	_POSIX_SELECT	1
+
+/* disable independently unsupported features */
+#undef _POSIX_TRACE
+#undef _POSIX_TRACE_EVENT_FILTER
+#undef _POSIX_TRACE_INHERIT
+#undef _POSIX_TRACE_LOG
+#undef _POSIX_TYPED_MEMORY_OBJECTS
+
+#if 0 /* does uClibc support these? */
+# undef _POSIX_ASYNCHRONOUS_IO
+# undef _POSIX_ASYNC_IO
+# undef _LFS_ASYNCHRONOUS_IO
+# undef _POSIX_PRIORITIZED_IO
+# undef _LFS64_ASYNCHRONOUS_IO
+# undef _POSIX_MESSAGE_PASSING
+#endif
+
+/* change options based on uClibc config options */
+
+#if 0 /*ndef __UCLIBC_HAS_POSIX_TIMERS__*/
+# undef _POSIX_TIMERS
+# undef _POSIX_THREAD_CPUTIME
+#endif
+
+#if 0 /*ndef __UCLIBC_HAS_POSIX_BARRIERS__*/
+# undef _POSIX_BARRIERS
+#endif
+
+#if 0 /*ndef __UCLIBC_HAS_POSIX_SPINLOCKS__*/
+# undef _POSIX_SPIN_LOCKS
+#endif
+
+#ifndef __ARCH_USE_MMU__
+# undef _POSIX_MEMLOCK
+# undef _POSIX_MEMLOCK_RANGE
+# undef _POSIX_MEMORY_PROTECTION
+#endif
+
+#ifndef __UCLIBC_HAS_LFS__
+# undef _LFS64_ASYNCHRONOUS_IO
+# undef _LFS_LARGEFILE
+# undef _LFS64_LARGEFILE
+# undef _LFS64_STDIO
+#endif
+
+#ifndef __UCLIBC_HAS_REALTIME__
+# undef _POSIX_SEMAPHORES
+#endif
+
+#ifndef __UCLIBC_HAS_REGEX__
+# undef _POSIX_REGEXP
+#endif
+
+#ifndef __UCLIBC_HAS_IPV6__
+# undef _POSIX_IPV6
+#endif
+
+#ifndef __UCLIBC_HAS_SOCKET__
+# undef _POSIX_RAW_SOCKETS
+#endif
+
+#endif /* bits/uClibc_posix_opt.h */