/* * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ #include <linux/init.h> #include <linux/sched/mm.h> #include <linux/sched/task_stack.h> #include <linux/sched/task.h> #include <as-layout.h> #include <kern.h> #include <os.h> #include <skas.h> extern void start_kernel(void); static int __init start_kernel_proc(void *unused) { int pid; block_signals(); pid = os_getpid(); cpu_tasks[0].pid = pid; cpu_tasks[0].task = current; start_kernel(); return 0; } extern int userspace_pid[]; extern char cpu0_irqstack[]; int __init start_uml(void) { stack_protections((unsigned long) &cpu0_irqstack); set_sigstack(cpu0_irqstack, THREAD_SIZE); init_new_thread_signals(); init_task.thread.request.u.thread.proc = start_kernel_proc; init_task.thread.request.u.thread.arg = NULL; return start_idle_thread(task_stack_page(&init_task), &init_task.thread.switch_buf); } unsigned long current_stub_stack(void) { if (current->mm == NULL) return 0; return current->mm->context.id.stack; }