void ALT_EXIT (int exit_code)
{
/* ALT_LOG - please see HAL/inc/alt_log_printf.h for details */
ALT_LOG_PRINT_BOOT("[alt_exit.c] Entering _exit() function.\r\n");
ALT_LOG_PRINT_BOOT("[alt_exit.c] Exit code from main was %d.\r\n",exit_code);
/* Stop all other threads */
ALT_LOG_PRINT_BOOT("[alt_exit.c] Calling ALT_OS_STOP().\r\n");
ALT_OS_STOP();
/* Provide notification to the simulator that we've stopped */
ALT_LOG_PRINT_BOOT("[alt_exit.c] Calling ALT_SIM_HALT().\r\n");
ALT_SIM_HALT(exit_code);
/* spin forever, since there's no where to go back to */
ALT_LOG_PRINT_BOOT("[alt_exit.c] Spinning forever.\r\n");
while (1);
}
void alt_main (void)
{
#ifndef ALT_NO_EXIT
int result;
#endif
/* ALT LOG - please see HAL/sys/alt_log_printf.h for details */
ALT_LOG_PRINT_BOOT("[alt_main.c] Entering alt_main, calling alt_irq_init.\r\n");
/* Initialize the interrupt controller. */
alt_irq_init (NULL);
/* Initialize the operating system */
ALT_LOG_PRINT_BOOT("[alt_main.c] Done alt_irq_init, calling alt_os_init.\r\n");
ALT_OS_INIT();
/*
* Initialize the semaphore used to control access to the file descriptor
* list.
*/
ALT_LOG_PRINT_BOOT("[alt_main.c] Done OS Init, calling alt_sem_create.\r\n");
ALT_SEM_CREATE (&alt_fd_list_lock, 1);
/* Initialize the device drivers/software components. */
ALT_LOG_PRINT_BOOT("[alt_main.c] Calling alt_sys_init.\r\n");
alt_sys_init();
ALT_LOG_PRINT_BOOT("[alt_main.c] Done alt_sys_init.\r\n");
#if !defined(ALT_USE_DIRECT_DRIVERS) && (defined(ALT_STDIN_PRESENT) || defined(ALT_STDOUT_PRESENT) || defined(ALT_STDERR_PRESENT))
/*
* Redirect stdio to the apropriate devices now that the devices have
* been initialized. This is only done if the user has requested these
* devices be present (not equal to /dev/null) and if direct drivers
* aren't being used.
*/
ALT_LOG_PRINT_BOOT("[alt_main.c] Redirecting IO.\r\n");
alt_io_redirect(ALT_STDOUT, ALT_STDIN, ALT_STDERR);
#endif
#ifndef ALT_NO_C_PLUS_PLUS
/*
* Call the C++ constructors
*/
ALT_LOG_PRINT_BOOT("[alt_main.c] Calling C++ constructors.\r\n");
_do_ctors ();
#endif /* ALT_NO_C_PLUS_PLUS */
#if !defined(ALT_NO_C_PLUS_PLUS) && !defined(ALT_NO_CLEAN_EXIT) && !defined(ALT_NO_EXIT)
/*
* Set the C++ destructors to be called at system shutdown. This is only done
* if a clean exit has been requested (i.e. the exit() function has not been
* redefined as _exit()). This is in the interest of reducing code footprint,
* in that the atexit() overhead is removed when it's not needed.
*/
ALT_LOG_PRINT_BOOT("[alt_main.c] Calling atexit.\r\n");
atexit (_do_dtors);
#endif
/*
* Finally, call main(). The return code is then passed to a subsequent
* call to exit() unless the application is never supposed to exit.
*/
ALT_LOG_PRINT_BOOT("[alt_main.c] Calling main.\r\n");
#ifdef ALT_NO_EXIT
main (alt_argc, alt_argv, alt_envp);
#else
result = main (alt_argc, alt_argv, alt_envp);
close(STDOUT_FILENO);
exit (result);
#endif
ALT_LOG_PRINT_BOOT("[alt_main.c] After main - we should not be here?.\r\n");
}
