static RIODesc *__open(struct r_io_t *io, const char *file, int rw, int mode) {
RIOMach *riom;
int pid;
task_t task;
if (!__plugin_open (io, file))
return NULL;
pid = atoi (file+(file[0]=='a'?9:7));
if (pid<1)
return NULL;
task = debug_attach (pid);
if ((int)task == -1) {
switch (errno) {
case EPERM:
eprintf ("Operation not permitted\n");
break;
case EINVAL:
perror ("ptrace: Cannot attach");
eprintf ("ERRNO: %d (EINVAL)\n", errno);
break;
default:
eprintf ("unknown error in debug_attach\n");
break;
}
return NULL;
}
riom = R_NEW (RIOMach);
riom->pid = pid;
riom->task = task;
return r_io_desc_new (&r_io_plugin_mach, riom->pid, file, 1, mode, riom);
}
/*
* Initialize
*/
static int
serial_init(void)
{
DPRINTF(("serial_init\n"));
/* Initialize port */
if (port_init() == -1)
return -1;
#if defined(DEBUG) && defined(CONFIG_DIAG_SERIAL)
debug_attach(diag_print);
#endif
tty_init(&serial_tty); /* init data */
serial_tty.t_oproc = serial_start;
serial_tty.t_winsize.ws_row = (u_short)TERM_ROWS;
serial_tty.t_winsize.ws_col = (u_short)TERM_COLS;
serial_dev = tty_attach("console", &serial_tty);
tty_dev = tty_attach("tty", &serial_tty);
ASSERT(tty_dev);
return 0;
}
/*
* Init
*/
static int
console_init(void)
{
struct bootinfo *bootinfo;
machine_bootinfo(&bootinfo);
cols = bootinfo->video.text_x;
rows = bootinfo->video.text_y;
esc_index = 0;
attrib = 0x0F;
vram = phys_to_virt((void *)VID_RAM);
reset_cursor();
#if defined(DEBUG) && defined(CONFIG_DIAG_SCREEN)
debug_attach(console_puts);
#endif
tty_init(&console_tty); /* init data */
console_tty.t_oproc = console_start;
console_tty.t_winsize.ws_row = (u_short)rows;
console_tty.t_winsize.ws_col = (u_short)cols;
console_dev = tty_attach("console", &console_tty);
tty_dev = tty_attach("tty", &console_tty);
ASSERT(tty_dev);
return 0;
}
static RIODesc *__open(RIO *io, const char *file, int rw, int mode) {
RIODesc *ret = NULL;
RIOMach *riom;
const char *pidfile;
char *pidpath, *endptr;
int pid;
task_t task;
if (!__plugin_open (io, file, 0))
return NULL;
pidfile = file + (file[0] == 'a' ? 9:7);
pid = (int)strtol (pidfile, &endptr, 10);
if (endptr == pidfile || pid < 0)
return NULL;
task = debug_attach (pid);
if (task == -1) {
return NULL;
}
if (!task) {
if (pid > 0 && io->referer && !strncmp (io->referer, "dbg://", 6)) {
eprintf ("Child killed\n");
kill (pid, 9);
}
switch (errno) {
case EPERM:
eprintf ("Operation not permitted\n");
break;
case EINVAL:
perror ("ptrace: Cannot attach");
eprintf ("ERRNO: %d (EINVAL)\n", errno);
break;
default:
eprintf ("unknown error in debug_attach\n");
break;
}
return NULL;
}
riom = R_NEW0 (RIOMach);
riom->pid = pid;
riom->task = task;
// sleep 1s to get proper path (program name instead of ls) (racy)
if (!pid)
pidpath = strdup ("kernel");
else
pidpath = r_sys_pid_to_path (pid);
ret = r_io_desc_new (&r_io_plugin_mach, riom->pid,
pidpath, rw | R_IO_EXEC, mode, riom);
free (pidpath);
return ret;
}
static RIODesc *__open(RIO *io, const char *file, int rw, int mode) {
RIODesc *ret = NULL;
RIOMach *riom;
const char *pidfile;
char *pidpath;
int pid;
task_t task;
if (!__plugin_open (io, file, 0))
return NULL;
pidfile = file+(file[0]=='a'?9:7);
if (!strcmp (pidfile, "0")) {
/* tfp0 */
pid = 0;
} else {
pid = atoi (pidfile);
if (pid<1)
return NULL;
}
task = debug_attach (pid);
if ((int)task == -1) {
switch (errno) {
case EPERM:
eprintf ("Operation not permitted\n");
break;
case EINVAL:
perror ("ptrace: Cannot attach");
eprintf ("ERRNO: %d (EINVAL)\n", errno);
break;
default:
eprintf ("unknown error in debug_attach\n");
break;
}
return NULL;
}
riom = R_NEW0 (RIOMach);
riom->pid = pid;
riom->task = task;
// sleep 1s to get proper path (program name instead of ls) (racy)
pidpath = r_sys_pid_to_path (pid);
ret = r_io_desc_new (&r_io_plugin_mach, riom->pid,
pidpath, rw | R_IO_EXEC, mode, riom);
free (pidpath);
return ret;
}