/*!
* First kernel function (after boot loader loads it to memory)
*/
void k_startup ()
{
extern console_t K_INITIAL_STDOUT, K_STDOUT;
extern console_t *k_stdout; /* console for kernel messages */
/* set initial stdout */
k_stdout = &K_INITIAL_STDOUT;
k_stdout->init (0);
/* initialize memory subsystem (needed for boot) */
k_memory_init ();
/*! start with regular initialization */
/* interrupts */
arch_init_interrupts ();
/* detect memory faults (qemu do not detect segment violations!) */
arch_register_interrupt_handler ( INT_MEM_FAULT, k_memory_fault );
arch_register_interrupt_handler ( INT_UNDEF_FAULT, k_memory_fault );
/* switch to default 'stdout' for kernel */
k_stdout = &K_STDOUT;
k_stdout->init (0);
kprintf ( "%s\n", system_info );
/* enable interrupts */
enable_interrupts ();
stdio_init (); /* initialize standard output devices */
/* start desired program(s) */
hello_world ();
segm_fault ();
#if ( TURN_OFF == 0 )
kprintf ( "\nSystem halted!\n" );
#ifdef PL190
/* testing uart (arm) interrupts */
void uart0_echo_test_start ();
uart0_echo_test_start ();
suspend();
#endif
halt ();
#else
/* power off (if supported, or just stop if not) */
kprintf ( "Powering off\n\n" );
power_off ();
#endif
}
static void run_all ( char *argv[] )
{
kprintf ( "\nStarting program: hello_world\n\n" );
hello_world (argv);
kprintf ( "\nStarting program: timer\n\n" );
timer (argv);
#if 0
kprintf ( "\nStarting program: keyboard\n\n" );
keyboard (argv);
kprintf ( "\nStarting program: segm_fault\n\n" );
segm_fault (argv);
#endif
kprintf ( "\nStarting program: arguments\n\n" );
char *args[] = { "first", "second", "third", NULL };
arguments (args);
}
