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/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be found in
* the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <bsp.h>
#include <assert.h>
#include <pthread.h>
#include <stdlib.h>
extern rtems_configuration_table BSP_Configuration;
/*
* Using GNAT's Distributed Systems Annex support requires
* each node in the system to have different pid's. In a
* single CPU RTEMS system, it is always one. This lets the
* user override the RTEMS default.
*/
#ifdef GNAT_PID
#include <unistd.h>
pid_t getpid()
{
return GNAT_PID;
}
#endif
/*
* By having the POSIX_Init thread create a second thread just
* to invoke gnat_main, we can override all default attributes
* of the "Ada environment task". Otherwise, we would be
* stuck with the defaults set by RTEMS.
*/
void *start_gnat_main( void * argument )
{
extern int gnat_main ( int argc, char **argv, char **envp );
(void) gnat_main ( 0, 0, 0 );
exit( 0 );
return 0;
}
#ifndef GNAT_MAIN_STACKSPACE
#define GNAT_MAIN_STACKSPACE 0
#endif
void *POSIX_Init( void *argument )
{
pthread_t thread_id;
pthread_attr_t attr;
size_t stacksize;
int status;
extern size_t _ada_pthread_minimum_stack_size();
status = pthread_attr_init( &attr );
assert( !status );
stacksize = GNAT_MAIN_STACKSPACE * 1024;
if ( stacksize < _ada_pthread_minimum_stack_size() )
stacksize = _ada_pthread_minimum_stack_size();
status = pthread_attr_setstacksize( &attr, stacksize );
assert( !status );
status = pthread_create( &thread_id, &attr, start_gnat_main, NULL );
assert( !status );
pthread_exit( 0 );
return 0;
}
/* configuration information */
/* Standard output and a clock tick so time passes */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
/* We want a clock tick every millisecond */
#define CONFIGURE_MICROSECONDS_PER_TICK RTEMS_MILLISECONDS_TO_MICROSECONDS(1)
/* The initialization task is a POSIX Initialization thread with default attributes */
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
/* We are using GNAT/RTEMS with a maximum of 20 Ada tasks and no fake Ada tasks. */
/* A fake Ada task is a task created outside the Ada run-time that calls into Ada. */
#define CONFIGURE_GNAT_RTEMS
#define CONFIGURE_MAXIMUM_ADA_TASKS 20
#define CONFIGURE_MAXIMUM_FAKE_ADA_TASKS 0
/* Account for any extra task stack size */
#define CONFIGURE_MEMORY_OVERHEAD (GNAT_MAIN_STACKSPACE)
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
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