config: Remove CONFIGURE_POSIX_HAS_OWN_INIT_THREAD_TABLE

The CONFIGURE_HAS_OWN_INIT_TASK_TABLE and
CONFIGURE_POSIX_HAS_OWN_INIT_THREAD_TABLE are the last *_HAS_OWN_*
configuration options.  These two options are probably unused, see also:

* https://lists.rtems.org/pipermail/users/2019-April/033129.html

* https://lists.rtems.org/pipermail/users/2019-April/033130.html

Removing them simplifies the configuration. If there is a real user need
which shows up after the removal, we can resurrect them on demand.

Using CONFIGURE_POSIX_HAS_OWN_INIT_THREAD_TABLE would have required the
use of the undocumented CONFIGURE_POSIX_INIT_THREAD_TABLE_NAME and
CONFIGURE_POSIX_INIT_THREAD_TABLE_SIZE configuration options.

Update #3874.

1 files changed, 31 insertions, 44 deletions

diff --git a/cpukit/posix/src/pthreadinitthreads.c b/cpukit/posix/src/pthreadinitthreads.c
index 89163f43ab..3adaa8b7ab 100644
--- a/cpukit/posix/src/pthreadinitthreads.c
+++ b/cpukit/posix/src/pthreadinitthreads.c
@@ -18,33 +18,22 @@
 #include "config.h"
 #endif
 
-#include <errno.h>
+#include <rtems/posix/pthread.h>
+
 #include <pthread.h>
-#include <limits.h>
 
-#include <rtems/config.h>
-#include <rtems/score/stack.h>
-#include <rtems/score/thread.h>
-#include <rtems/score/wkspace.h>
-#include <rtems/posix/posixapi.h>
-#include <rtems/posix/pthreadimpl.h>
-#include <rtems/posix/priorityimpl.h>
-#include <rtems/posix/config.h>
+#include <rtems/score/assert.h>
+#include <rtems/score/threadimpl.h>
+#include <rtems/score/interr.h>
 
-void _POSIX_Threads_Initialize_user_threads_body(void)
+void _POSIX_Threads_Initialize_user_thread( void )
 {
-  int                                 eno;
-  uint32_t                            index;
-  uint32_t                            maximum;
-  posix_initialization_threads_table *user_threads;
-  pthread_t                           thread_id;
-  pthread_attr_t                      attr;
-
-  user_threads = _Configuration_POSIX_Initialization_threads;
-  maximum      = _Configuration_POSIX_Initialization_thread_count;
+  int                                       eno;
+  const posix_initialization_threads_table *user_thread;
+  pthread_t                                 thread_id;
+  pthread_attr_t                            attr;
 
-  if ( !user_threads )
-    return;
+  user_thread = &_POSIX_Threads_User_thread_table;
 
   /*
    *  Be careful .. if the default attribute set changes, this may need to.
@@ -53,29 +42,27 @@ void _POSIX_Threads_Initialize_user_threads_body(void)
    *  to inherit the idle tasks attributes.
    */
 
-  for ( index=0 ; index < maximum ; index++ ) {
-    /*
-     * There is no way for these calls to fail in this situation.
-     */
-    eno = pthread_attr_init( &attr );
-    _Assert( eno == 0 );
-    eno = pthread_attr_setinheritsched( &attr, PTHREAD_EXPLICIT_SCHED );
-    _Assert( eno == 0 );
-    eno = pthread_attr_setstacksize(&attr, user_threads[ index ].stack_size);
-    _Assert( eno == 0 );
+  /*
+   * There is no way for these calls to fail in this situation.
+   */
+  eno = pthread_attr_init( &attr );
+  _Assert( eno == 0 );
+  eno = pthread_attr_setinheritsched( &attr, PTHREAD_EXPLICIT_SCHED );
+  _Assert( eno == 0 );
+  eno = pthread_attr_setstacksize( &attr, user_thread->stack_size );
+  _Assert( eno == 0 );
 
-    eno = pthread_create(
-      &thread_id,
-      &attr,
-      user_threads[ index ].thread_entry,
-      NULL
-    );
-    if ( eno != 0 ) {
-      _Internal_error( INTERNAL_ERROR_POSIX_INIT_THREAD_CREATE_FAILED );
-    }
+  eno = pthread_create(
+    &thread_id,
+    &attr,
+    user_thread->thread_entry,
+    NULL
+  );
+  if ( eno != 0 ) {
+    _Internal_error( INTERNAL_ERROR_POSIX_INIT_THREAD_CREATE_FAILED );
+  }
 
-    if ( _Thread_Global_constructor == 0 ) {
-      _Thread_Global_constructor = thread_id;
-    }
+  if ( _Thread_Global_constructor == 0 ) {
+    _Thread_Global_constructor = thread_id;
   }
 }