Proper(ish) posix_opt.h for NaCl.

diff --git a/sysdeps/nacl/bits/posix_opt.h b/sysdeps/nacl/bits/posix_opt.h
new file mode 100644 (file)
index 0000000..2a5d6fd
--- /dev/null
+++ b/sysdeps/nacl/bits/posix_opt.h
@@ -0,0 +1,210 @@
+/* Define POSIX options for NaCl.
+   Copyright (C) 2015 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; see the file COPYING.LIB.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef        _BITS_POSIX_OPT_H
+#define        _BITS_POSIX_OPT_H       1
+
+/* Job control is supported.  (Not really, but the APIs exist.)  */
+#define        _POSIX_JOB_CONTROL                      1
+
+/* Processes have a saved set-user-ID and a saved set-group-ID.  */
+#define        _POSIX_SAVED_IDS                        1
+
+/* Priority scheduling is supported. ??? */
+#define        _POSIX_PRIORITY_SCHEDULING              200809L
+
+/* Synchronizing file data is supported. ???  */
+#define        _POSIX_SYNCHRONIZED_IO                  200809L
+
+/* The fsync function is present.  */
+#define        _POSIX_FSYNC                            200809L
+
+/* Mapping of files to memory is supported.  */
+#define        _POSIX_MAPPED_FILES                     200809L
+
+/* Locking of all memory is not supported.  */
+#define        _POSIX_MEMLOCK                          -1
+
+/* Locking of ranges of memory is not supported.  */
+#define        _POSIX_MEMLOCK_RANGE                    -1
+
+/* Setting of memory protections is supported.  */
+#define        _POSIX_MEMORY_PROTECTION                200809L
+
+/* Some filesystems allow all users to change file ownership.  */
+#define        _POSIX_CHOWN_RESTRICTED                 0
+
+/* `c_cc' member of 'struct termios' structure can be disabled by
+   using the value _POSIX_VDISABLE.  ??? */
+#define        _POSIX_VDISABLE                         '\0'
+
+/* Filenames are not silently truncated.  */
+#define        _POSIX_NO_TRUNC                         1
+
+/* X/Open realtime support is not fully available.  This requires the
+   following set of POSIX.1 features, not all of which NaCl supports:
+        _POSIX_FSYNC
+        _POSIX_MEMLOCK
+        _POSIX_MEMLOCK_RANGE
+        _POSIX_MESSAGE_PASSING
+        _POSIX_PRIORITIZED_IO
+        _POSIX_PRIORITY_SCHEDULING
+        _POSIX_SHARED_MEMORY_OBJECTS
+        _POSIX_SYNCHRONIZED_IO
+ */
+#define _XOPEN_REALTIME                                -1
+
+/* X/Open thread realtime support is not available.  This requires the
+   following set of POSIX.1 features, none of which NaCl supports:
+        _POSIX_THREAD_PRIO_INHERIT
+        _POSIX_THREAD_PRIO_PROTECT
+        _POSIX_THREAD_PRIORITY_SCHEDULING
+        _POSIX_THREAD_ROBUST_PRIO_INHERIT
+        _POSIX_THREAD_ROBUST_PRIO_PROTECT
+ */
+#define _XOPEN_REALTIME_THREADS                        -1
+
+/* XPG4.2 shared memory is not supported.
+   ??? What is this?  shm* interfaces?
+*/
+#define        _XOPEN_SHM                              -1
+
+/* POSIX threads are supported.  */
+#define _POSIX_THREADS                         200809L
+
+/* We have the reentrant functions described in POSIX.  */
+#define _POSIX_REENTRANT_FUNCTIONS             1
+#define _POSIX_THREAD_SAFE_FUNCTIONS           200809L
+
+/* We do not provide priority scheduling for threads.  */
+#define _POSIX_THREAD_PRIORITY_SCHEDULING      -1
+
+/* We support user-defined stack sizes.  */
+#define _POSIX_THREAD_ATTR_STACKSIZE           200809L
+
+/* We support user-defined stacks.  */
+#define _POSIX_THREAD_ATTR_STACKADDR           200809L
+
+/* We do not support priority inheritence.  */
+#define _POSIX_THREAD_PRIO_INHERIT             -1
+
+/* We do not support priority protection.  */
+#define _POSIX_THREAD_PRIO_PROTECT             -1
+
+#ifdef __USE_XOPEN2K8
+/* We do not support priority inheritence for robust mutexes.  */
+# define _POSIX_THREAD_ROBUST_PRIO_INHERIT     -1
+
+/* We do not support priority protection for robust mutexes.  */
+# define _POSIX_THREAD_ROBUST_PRIO_PROTECT     -1
+#endif
+
+/* We support POSIX.1b semaphores.  */
+#define _POSIX_SEMAPHORES                      200809L
+
+/* Real-time signals are supported. ???  */
+#define _POSIX_REALTIME_SIGNALS                        200809L
+
+/* We support asynchronous I/O.  */
+#define _POSIX_ASYNCHRONOUS_IO                 200809L
+#define _POSIX_ASYNC_IO                                1
+/* Alternative name for Unix98.  */
+#define _LFS_ASYNCHRONOUS_IO                   1
+/* Support for prioritization is not available.  */
+#define _POSIX_PRIORITIZED_IO                  -1
+
+/* The LFS support in asynchronous I/O is also available.  */
+#define _LFS64_ASYNCHRONOUS_IO                 1
+
+/* The rest of the LFS is also available.  */
+#define _LFS_LARGEFILE                         1
+#define _LFS64_LARGEFILE                       1
+#define _LFS64_STDIO                           1
+
+/* POSIX shared memory objects are implemented.  */
+#define _POSIX_SHARED_MEMORY_OBJECTS           200809L
+
+/* Process CPU-time clocks are not supported.  */
+#define _POSIX_CPUTIME                         -1
+
+/* Thread CPU-time locks are supported.  */
+#define _POSIX_THREAD_CPUTIME                  200809L
+
+/* GNU libc provides regular expression handling.  */
+#define _POSIX_REGEXP                          1
+
+/* Reader/Writer locks are available.  */
+#define _POSIX_READER_WRITER_LOCKS             200809L
+
+/* We have a POSIX shell.  */
+#define _POSIX_SHELL                           1
+
+/* We support the Timeouts option.  */
+#define _POSIX_TIMEOUTS                                200809L
+
+/* We support spinlocks.  */
+#define _POSIX_SPIN_LOCKS                      200809L
+
+/* The `spawn' function family is supported.  */
+#define _POSIX_SPAWN                           200809L
+
+/* We have POSIX timers.  */
+#define _POSIX_TIMERS                          200809L
+
+/* The barrier functions are available.  */
+#define _POSIX_BARRIERS                                200809L
+
+/* POSIX message queues are not available.  */
+#define        _POSIX_MESSAGE_PASSING                  -1
+
+/* Thread process-shared synchronization is not supported.  */
+#define _POSIX_THREAD_PROCESS_SHARED           -1
+
+/* The monotonic clock is available.  */
+#define _POSIX_MONOTONIC_CLOCK                 200809L
+
+/* The clock selection interfaces are available.  ??? Actually only
+   clock_nanosleep works, and pthread_condattr_setclock does not.  */
+#define _POSIX_CLOCK_SELECTION                 200809L
+
+/* Advisory information interfaces are available.  */
+#define _POSIX_ADVISORY_INFO                   200809L
+
+/* IPv6 support is available.  */
+#define _POSIX_IPV6                            200809L
+
+/* Raw socket support is available.  */
+#define _POSIX_RAW_SOCKETS                     200809L
+
+/* We have at least one terminal.  */
+#define _POSIX2_CHAR_TERM                      200809L
+
+/* Neither process nor thread sporadic server interfaces is available.  */
+#define _POSIX_SPORADIC_SERVER                 -1
+#define _POSIX_THREAD_SPORADIC_SERVER          -1
+
+/* trace.h is not available.  */
+#define _POSIX_TRACE                           -1
+#define _POSIX_TRACE_EVENT_FILTER              -1
+#define _POSIX_TRACE_INHERIT                   -1
+#define _POSIX_TRACE_LOG                       -1
+
+/* Typed memory objects are not available.  */
+#define _POSIX_TYPED_MEMORY_OBJECTS            -1
+
+#endif /* bits/posix_opt.h */