Merged revisions 25638,25640,25642,25649-25650,25667-25668 via svnmerge from

svn+ssh://svn.uclibc.org/svn/trunk/uClibc

........
  r25638 | vda | 2009-03-12 13:56:59 -0700 (Thu, 12 Mar 2009) | 10 lines
  
  linuxthreads fixes from Will Newton (will.newton AT gmail.com):
  * share Sys V semaphores in order to get appropriate SEM_UNDO semantics.
  * correct guardaddr in pthread_free() for TLS case
  * move spinlock unlocking before restart()
  * When exit was called from a signal handler, the restart
    from the manager processing the exit request instead restarted the thread
    in pthread_cond_timedwait.
    (see http://sources.redhat.com/ml/libc-ports/2006-05/msg00000.html)
........
  r25640 | vda | 2009-03-12 16:04:19 -0700 (Thu, 12 Mar 2009) | 3 lines
  
  add linuxthreads support for arm. By Will Newton (will.newton AT gmail.com)
........
  r25642 | vapier | 2009-03-12 23:17:48 -0700 (Thu, 12 Mar 2009) | 1 line
  
  add GNU extension for select timeouts where the sub-second field is actually longer than one second
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  r25649 | vapier | 2009-03-14 04:23:28 -0700 (Sat, 14 Mar 2009) | 1 line
  
  force DOPIC for FDPIC ELF targets
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  r25650 | vapier | 2009-03-14 04:30:56 -0700 (Sat, 14 Mar 2009) | 1 line
  
  default linux-2.4 module support to off for Blackfin targets
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  r25667 | vda | 2009-03-15 19:56:27 -0700 (Sun, 15 Mar 2009) | 3 lines
  
  docs/pthreads_hacking.txt: new file
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  r25668 | kraj | 2009-03-15 23:02:47 -0700 (Sun, 15 Mar 2009) | 2 lines
  
  Update copyright header.
........

2 files changed, 58 insertions, 9 deletions

diff --git a/libc/sysdeps/linux/common/creat.c b/libc/sysdeps/linux/common/creat.c
index 92dbf329c..77cf44e69 100644
--- a/libc/sysdeps/linux/common/creat.c
+++ b/libc/sysdeps/linux/common/creat.c
@@ -2,7 +2,7 @@
 /*
  * creat() for uClibc
  *
- * Copyright (C) 2009 <kraj@uclibc.org>
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
  *
  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  */
diff --git a/libc/sysdeps/linux/common/select.c b/libc/sysdeps/linux/common/select.c
index 34b6e8260..0c2d91984 100644
--- a/libc/sysdeps/linux/common/select.c
+++ b/libc/sysdeps/linux/common/select.c
@@ -9,6 +9,7 @@
 
 #include <sys/syscall.h>
 #include <sys/select.h>
+#include <stdint.h>
 
 #ifdef __UCLIBC_HAS_THREADS_NATIVE__
 #include <sysdep-cancel.h>
@@ -16,20 +17,65 @@
 #define SINGLE_THREAD_P 1
 #endif
 
+#define USEC_PER_SEC 1000000L
 
-libc_hidden_proto(select)
+extern __typeof(select) __libc_select;
+
+#if !defined(__NR__newselect) && !defined(__NR_select) && defined __USE_XOPEN2K
+# define __NR___libc_pselect6 __NR_pselect6
+_syscall6(int, __libc_pselect6, int, n, fd_set *, readfds, fd_set *, writefds,
+        fd_set *, exceptfds, const struct timespec *, timeout,
+        const sigset_t *, sigmask)
+
+int __libc_select(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
+                  struct timeval *timeout)
+{
+	struct timespec _ts, *ts = 0;
+	if (timeout) {
+		uint32_t usec;
+		_ts.tv_sec = timeout->tv_sec;
+
+		/* GNU extension: allow for timespec values where the sub-sec
+		* field is equal to or more than 1 second.  The kernel will
+		* reject this on us, so take care of the time shift ourself.
+		* Some applications (like readline and linphone) do this.
+		* See 'clarification on select() type calls and invalid timeouts'
+		* on the POSIX general list for more information.
+		*/
+		usec = timeout->tv_usec;
+		if (usec >= USEC_PER_SEC) {
+			_ts.tv_sec += usec / USEC_PER_SEC;
+			usec %= USEC_PER_SEC;
+		}
+		_ts.tv_nsec = usec * 1000;
+
+		ts = &_ts;
+	}
+
+	if (SINGLE_THREAD_P)
+		return __libc_pselect6(n, readfds, writefds, exceptfds, ts, 0);
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+	int oldtype = LIBC_CANCEL_ASYNC ();
+	int result = __libc_pselect6(n, readfds, writefds, exceptfds, ts, 0);
+	LIBC_CANCEL_RESET (oldtype);
+	return result;
+#endif
+
+}
+
+#else
 
 #ifdef __NR__newselect
-# undef __NR_select
-# define __NR_select __NR__newselect
+# define __NR___syscall_select __NR__newselect
+#else
+# define __NR___syscall_select __NR_select
 #endif
 
-#define __NR___syscall_select __NR_select
-static inline _syscall5(int, __syscall_select, int, n, fd_set *, readfds,
+_syscall5(int, __syscall_select, int, n, fd_set *, readfds,
 		fd_set *, writefds, fd_set *, exceptfds, struct timeval *, timeout);
 
-int select(int n, fd_set * readfds, fd_set * writefds, fd_set * exceptfds,
-		   struct timeval * timeout)
+int __libc_select(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
+                  struct timeval *timeout)
 {
 	if (SINGLE_THREAD_P)
 		return __syscall_select(n, readfds, writefds, exceptfds, timeout);
@@ -42,4 +88,7 @@ int select(int n, fd_set * readfds, fd_set * writefds, fd_set * exceptfds,
 #endif
 }
 
-libc_hidden_def(select)
+#endif
+
+weak_alias(__libc_select,select)
+libc_hidden_weak(select)