2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL
6 #include <linux/stddef.h>
7 #include <linux/module.h>
9 #include <linux/ptrace.h>
10 #include <linux/sched.h>
11 #include <linux/slab.h>
12 #include <asm/current.h>
13 #include <asm/processor.h>
14 #include <asm/uaccess.h>
15 #include <as-layout.h>
21 void flush_thread(void)
26 arch_flush_thread(¤t->thread.arch);
28 ret = unmap(¤t->mm->context.id, 0, STUB_START, 0, &data);
29 ret = ret || unmap(¤t->mm->context.id, STUB_END,
30 host_task_size - STUB_END, 1, &data);
32 printk(KERN_ERR "flush_thread - clearing address space failed, "
34 force_sig(SIGKILL, current);
37 __switch_mm(¤t->mm->context.id);
40 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
42 get_safe_registers(regs->regs.gp, regs->regs.fp);
43 PT_REGS_IP(regs) = eip;
44 PT_REGS_SP(regs) = esp;
45 current->ptrace &= ~PT_DTRACE;
46 #ifdef SUBARCH_EXECVE1
47 SUBARCH_EXECVE1(regs->regs);
50 EXPORT_SYMBOL(start_thread);
52 long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
56 err = do_execve(file, argv, env, ¤t->thread.regs);
58 UML_LONGJMP(current->thread.exec_buf, 1);
62 long sys_execve(const char __user *file, const char __user *const __user *argv,
63 const char __user *const __user *env)
68 filename = getname(file);
69 error = PTR_ERR(filename);
70 if (IS_ERR(filename)) goto out;
71 error = do_execve(filename, argv, env, ¤t->thread.regs);