static void
user_bootstrap_compat(void)
{
exec_info_t boot_exec_info;
char host_string[12];
char device_string[12];
char flag_string[1024];
char root_string[1024];
/*
* Copy the bootstrap code from boot_exec into the user task.
*/
copy_bootstrap(current_thread()->saved.other, &boot_exec_info);
/*
* Convert the host and device ports to strings,
* to put in the argument list.
*/
itoa(host_string, boot_host_port);
itoa(device_string, boot_device_port);
/*
* Get the (compatibility) boot flags and root name strings.
*/
get_compat_strings(flag_string, root_string);
/*
* Build the argument list and insert in the user task.
* Argument list is
* "bootstrap -<boothowto> <host_port> <device_port> <root_name>"
$0 ${boot-args} ${host-port} ${device-port} ${root-device} $(task-create) $(task-resume)
*/
{
char *argv[] = { "bootstrap",
flag_string,
host_string,
device_string,
root_string,
0 };
char *envp[] = { 0, 0 };
if (kernel_cmdline[0] != '\0')
{
static const char cmdline_var[] = "MULTIBOOT_CMDLINE=";
envp[0] = alloca (sizeof cmdline_var + strlen (kernel_cmdline));
memcpy (envp[0], cmdline_var, sizeof cmdline_var - 1);
strcpy (envp[0] + sizeof cmdline_var - 1, kernel_cmdline);
}
build_args_and_stack(&boot_exec_info, argv, envp);
}
/*
* Exit to user thread.
*/
thread_bootstrap_return();
/*NOTREACHED*/
}
static void user_bootstrap()
{
struct exec_info boot_exec_info;
char host_string[12];
char device_string[12];
char flag_string[12];
char root_string[12];
/*
* Copy the bootstrap code from boot_exec into the user task.
*/
copy_bootstrap(boot_exec, &boot_exec_info);
/*
* Convert the host and device ports to strings,
* to put in the argument list.
*/
itoa(host_string, boot_host_port);
itoa(device_string, boot_device_port);
/*
* Get the (compatibility) boot flags and root name strings.
*/
get_compat_strings(flag_string, root_string);
/*
* Build the argument list and insert in the user task.
* Argument list is
* "bootstrap -<boothowto> <host_port> <device_port> <root_name>"
*/
build_args_and_stack(&boot_exec_info,
"bootstrap",
flag_string,
host_string,
device_string,
root_string,
(char *)0);
printf("Starting bootstrap at %x\n", boot_exec_info.entry);
/*
* Exit to user thread.
*/
thread_bootstrap_return();
/*NOTREACHED*/
}
static void user_bootstrap(void)
{
struct user_bootstrap_info *info = current_thread()->saved.other;
exec_info_t boot_exec_info;
int err;
char **av;
/* Load this task up from the executable file in the module. */
err = exec_load(boot_read, read_exec, info->mod, &boot_exec_info);
if (err)
panic ("Cannot load user executable module (error code %d): %s",
err, info->argv[0]);
printf ("task loaded:");
/* Set up the stack with arguments. */
build_args_and_stack(&boot_exec_info, info->argv, 0);
for (av = info->argv; *av != 0; ++av)
printf (" %s", *av);
task_suspend (current_task());
/* Tell the bootstrap thread running boot_script_exec_cmd
that we are done looking at INFO. */
simple_lock (&info->lock);
assert (!info->done);
info->done = 1;
thread_wakeup ((event_t) info);
/*
* Exit to user thread.
*/
thread_bootstrap_return();
/*NOTREACHED*/
}
