Merge GDB 7.5.1

sim/testsuite/sim/cris/c/rtsigprocmask1.c

 /* Compiler options:
 #notarget: cris*-*-elf
 #cc: additional_flags=-pthread
 #xerror:
 #output: Unimplemented rt_sigprocmask syscall (0x3, 0x0, 0x3dff*\n
-#output: program stopped with signal 4.\n
+#output: program stopped with signal 4 (*).\n
 
    Testing a signal handler corner case.  */
 
 #include <stddef.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <signal.h>
 #include <pthread.h>
 #include <errno.h>
@@ skipping 25 matching lines @@
   retcode
     = pthread_sigmask (SIG_BLOCK + SIG_UNBLOCK + SIG_SETMASK, NULL, &sigs);
   /* Direct return of the error number; i.e. not using -1 and errno,
      is the actual documented behavior.  */
   if (retcode == ENOSYS)
     printf ("ENOSYS\n");
 
   printf ("xyzzy\n");
   return 0;
 }