Function sys_program_spawn_loader

kernel/generic/src/proc/program.c:220–244

Syscall for creating a new loader instance from userspace. * * Creates a new task from the program loader image and sets * the task name. * * @param uspace_name Name to set on the new task (typically the same * as the command used to execute it). * @param name_len Length of the name. * * @return EOK on success or an error code from @ref errno.h. * */

 *
 */
sys_errno_t sys_program_spawn_loader(uspace_ptr_char uspace_name, size_t name_len)
{
	/* Cap length of name and copy it from userspace. */
	if (name_len > TASK_NAME_BUFLEN - 1)
		name_len = TASK_NAME_BUFLEN - 1;

	char namebuf[TASK_NAME_BUFLEN];
	errno_t rc = copy_from_uspace(namebuf, uspace_name, name_len);
	if (rc != EOK)
		return (sys_errno_t) rc;

	namebuf[name_len] = 0;

	/* Spawn the new task. */
	program_t prg;
	rc = program_create_loader(&prg, namebuf);
	if (rc != EOK)
		return rc;

	// FIXME: control the permissions
	perm_set(prg.task, perm_get(TASK));
	program_ready(&prg);

	return EOK;
}

/** @}
 */