Correct initial POSIX signals mask

	+ Modify POSIX thread create extension to ensure expected
	  initial signal mask is provided to system threads, initial
	  tasks and threads, and inheritied by tasks and threads.
	+ Adds psxsignal07 to verify functionality when using a POSIX
	  Initialization thread and POSIX threads.
	+ Adds psxsignal08 to verify functionality when using a Classic API
	  Initialization task and Classic API tasks.

Closes #3794.

1 files changed, 14 insertions, 0 deletions

diff --git a/testsuites/psxtests/psxsignal01/init.c b/testsuites/psxtests/psxsignal01/init.c
index 511dd2d637..6df3695c98 100644
--- a/testsuites/psxtests/psxsignal01/init.c
+++ b/testsuites/psxtests/psxsignal01/init.c
@@ -36,6 +36,18 @@ extern void _POSIX_signals_Abnormal_termination_handler( int signo );
 volatile int Signal_occurred;
 volatile int Signal_count;
 
+static void block_all_signals(void)
+{
+  int               sc;
+  sigset_t          mask;
+
+  sc = sigfillset( &mask );
+  rtems_test_assert( !sc );
+
+  sc = pthread_sigmask( SIG_BLOCK, &mask, NULL );
+  rtems_test_assert( !sc );
+}
+
 void Handler_1(
   int signo
 )
@@ -108,6 +120,8 @@ void *POSIX_Init(
 
   TEST_BEGIN();
 
+  block_all_signals();
+
   /* set the time of day, and print our buffer in multiple ways */
 
   set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 );