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# T2 SDE: package/.../dietlibc/pselect.patch
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The emulation via legacy syscalls fails atomic tests, ...

  - Rene Rebe <rene@exactcode.de>

--- dietlibc-0.32-vanilla/lib/pselect.c	2004-05-17 17:44:56.000000000 +0000
+++ dietlibc-0.32/lib/pselect.c	2011-01-09 18:17:03.314803895 +0000
@@ -1,20 +1,17 @@
 #include <sys/select.h>
 
-int pselect(int n, fd_set* readfds, fd_set* writefds, fd_set* exceptfds,
-            const struct timespec *timeout, const sigset_t *sigmask) {
-  struct timeval t;
-  sigset_t old;
-  int r;
-  if (timeout) {
-    t.tv_sec=timeout->tv_sec;
-    t.tv_usec=timeout->tv_nsec/1000;
-    if (!t.tv_sec && !t.tv_usec && timeout->tv_nsec) ++t.tv_usec;
-  }
-  if (sigmask)
-    sigprocmask(SIG_SETMASK,sigmask,&old);
-  r=select(n,readfds,writefds,exceptfds,
-	   timeout?&t:0);
-  if (sigmask)
-    sigprocmask(SIG_SETMASK,&old,0);
-  return r;
+int __pselect(int n, fd_set* readfds, fd_set* writefds, fd_set* exceptfds,
+              const struct timespec *timeout, void* proxy);
+int __libc_pselect(int n, fd_set* readfds, fd_set* writefds, fd_set* exceptfds,
+                   const struct timespec *timeout, const sigset_t *sigmask) {
+  struct {
+    const sigset_t *sigmask;
+    size_t nr;
+  } proxy = {sigmask, _NSIG/8};
+
+  return __pselect(n,readfds,writefds,exceptfds, timeout, &proxy);
 }
+
+int pselect(int n, fd_set* readfds, fd_set* writefds, fd_set* exceptfds,
+            const struct timespec *timeout, const sigset_t *sigmask)
+__attribute__((weak,alias("__libc_pselect")));
diff -urN dietlibc-0.32-vanilla/syscalls.s/__pselect.S dietlibc-0.32/syscalls.s/__pselect.S
--- dietlibc-0.32-vanilla/syscalls.s/__pselect.S	1970-01-01 00:00:00.000000000 +0000
+++ dietlibc-0.32/syscalls.s/__pselect.S	2011-01-09 18:04:11.126794569 +0000
@@ -0,0 +1,3 @@
+#include "syscalls.h"
+
+syscall(pselect6,__pselect)