source: ada-examples/hello_world_ada/init.c @ 4ad07d0

ada-examples-4-10-branchada-examples-4-8-branchada-examples-4-9-branch
Last change on this file since 4ad07d0 was 4ad07d0, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 17, 2007 at 7:12:31 PM

2007-07-17 Joel Sherrill <joel.sherrill@…>

  • hello_world_ada/Makefile.anybsp, hello_world_ada/Makefile.pc386, hello_world_ada/Makefile.score603e, hello_world_ada/init.c: Clean up GNAT_MAIN_STACKSIZE.
  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 *  COPYRIGHT (c) 1989-2007.
3 *  On-Line Applications Research Corporation (OAR).
4 *
5 *  The license and distribution terms for this file may be found in
6 *  the file LICENSE in this distribution or at
7 *  http://www.OARcorp.com/rtems/license.html.
8 *
9 *  $Id$
10 */
11
12#include <bsp.h>
13
14#include <assert.h>
15#include <pthread.h>
16#include <stdlib.h>
17
18extern rtems_configuration_table  BSP_Configuration;
19
20#ifdef GNAT_PID
21#include <unistd.h>
22pid_t getpid()
23{
24  return GNAT_PID;
25}
26#endif
27
28/*
29 *  By having the POSIX_Init thread create a second thread just
30 *  to invoke gnat_main, we can override all default attributes
31 *  of the "Ada environment task".  Otherwise, we would be
32 *  stuck with the defaults set by RTEMS.
33 */
34 
35void *start_gnat_main( void * argument )
36{
37  extern int gnat_main ( int argc, char **argv, char **envp );
38
39  printk( "Transferring to Ada\n" );
40  (void) gnat_main ( 0, 0, 0 );
41
42  exit( 0 );
43
44  return 0;
45}
46
47extern  size_t  _ada_pthread_minimum_stack_size();
48
49#ifndef GNAT_MAIN_STACKSPACE
50#define GNAT_MAIN_STACKSPACE 0
51#endif
52void *POSIX_Init( void *argument )
53{
54  pthread_t       thread_id;
55  pthread_attr_t  attr;
56  size_t          stacksize;
57  int             status;
58  printk( "Starting Posix Init thread\n" );
59
60  status = pthread_attr_init( &attr );
61  assert( !status );
62
63  stacksize = GNAT_MAIN_STACKSPACE * 1024;
64  if ( stacksize < _ada_pthread_minimum_stack_size() )
65    stacksize = _ada_pthread_minimum_stack_size();
66
67  status = pthread_attr_setstacksize( &attr, stacksize );
68  assert( !status );
69
70  status = pthread_create( &thread_id, &attr, start_gnat_main, NULL );
71  assert( !status );
72
73  printk( "Exiting Posix Init thread\n" );
74  pthread_exit( 0 );
75
76  return 0;
77}
78
79/* configuration information */
80
81#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
82#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
83
84#define CONFIGURE_MICROSECONDS_PER_TICK RTEMS_MILLISECONDS_TO_MICROSECONDS(1)
85
86#define CONFIGURE_POSIX_INIT_THREAD_TABLE
87
88#define CONFIGURE_MAXIMUM_SEMAPHORES 10
89#define CONFIGURE_GNAT_RTEMS
90#define CONFIGURE_MAXIMUM_ADA_TASKS      20
91#define CONFIGURE_MAXIMUM_FAKE_ADA_TASKS 0
92
93#define CONFIGURE_MEMORY_OVERHEAD        (GNAT_MAIN_STACKSPACE)
94
95#define CONFIGURE_INIT
96
97#include <rtems/confdefs.h>
98
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