signal methods: Add restrict keyword

cpukit/posix/src/pthreadsigmask.c

@@ -33,8 +33,8 @@
 
 int pthread_sigmask(
   int               how,
-  const sigset_t   *set,
-  sigset_t         *oset
+  const sigset_t   *__restrict set,
+  sigset_t         *__restrict oset
 )
 {
   POSIX_API_Control  *api;

cpukit/posix/src/sigaction.c

@@ -38,8 +38,8 @@ extern void PARAMETERS_PASSING_S (int num_signal, const struct sigaction inf);
 
 int sigaction(
   int                     sig,
-  const struct sigaction *act,
-  struct sigaction       *oact
+  const struct sigaction *__restrict act,
+  struct sigaction       *__restrict oact
 )
 {
   ISR_Level     level;

cpukit/posix/src/sigprocmask.c

@@ -28,8 +28,8 @@
  */
 int sigprocmask(
   int               how,
-  const sigset_t   *set,
-  sigset_t         *oset
+  const sigset_t   *__restrict set,
+  sigset_t         *__restrict oset
 )
 {
   /*

cpukit/posix/src/sigtimedwait.c

@@ -67,9 +67,9 @@ found_it:
  *  3.3.8 Synchronously Accept a Signal, P1003.1b-1993, p. 76
  */
 int sigtimedwait(
-  const sigset_t         *set,
-  siginfo_t              *info,
-  const struct timespec  *timeout
+  const sigset_t         *__restrict set,
+  siginfo_t              *__restrict info,
+  const struct timespec  *__restrict timeout
 )
 {
   Thread_Control    *executing;

cpukit/posix/src/sigwait.c

@@ -23,8 +23,8 @@
 #include <errno.h>
 
 int sigwait(
-  const sigset_t  *set,
-  int             *sig
+  const sigset_t  *__restrict set,
+  int             *__restrict sig
 )
 {
   int status;

cpukit/posix/src/sigwaitinfo.c

@@ -25,8 +25,8 @@
 #include <signal.h>
 
 int sigwaitinfo(
-  const sigset_t  *set,
-  siginfo_t       *info
+  const sigset_t  *__restrict set,
+  siginfo_t       *__restrict info
 )
 {
   return sigtimedwait( set, info, NULL );