2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL
6 #include "linux/stddef.h"
8 #include "linux/smp_lock.h"
9 #include "linux/ptrace.h"
10 #include "linux/sched.h"
11 #include "asm/current.h"
12 #include "asm/processor.h"
13 #include "asm/uaccess.h"
18 void flush_thread(void)
21 unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
24 arch_flush_thread(¤t->thread.arch);
26 ret = unmap(¤t->mm->context.id, 0, end, 1, &data);
28 printk(KERN_ERR "flush_thread - clearing address space failed, "
30 force_sig(SIGKILL, current);
33 __switch_mm(¤t->mm->context.id);
36 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
39 PT_REGS_IP(regs) = eip;
40 PT_REGS_SP(regs) = esp;
44 extern void log_exec(char **argv, void *tty);
47 static long execve1(char *file, char __user * __user *argv,
48 char __user *__user *env)
52 struct tty_struct *tty;
54 mutex_lock(&tty_mutex);
55 tty = get_current_tty();
58 mutex_unlock(&tty_mutex);
60 error = do_execve(file, argv, env, ¤t->thread.regs);
63 current->ptrace &= ~PT_DTRACE;
64 #ifdef SUBARCH_EXECVE1
65 SUBARCH_EXECVE1(¤t->thread.regs.regs);
72 long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
76 err = execve1(file, argv, env);
78 UML_LONGJMP(current->thread.exec_buf, 1);
82 long sys_execve(char __user *file, char __user *__user *argv,
83 char __user *__user *env)
89 filename = getname(file);
90 error = PTR_ERR(filename);
91 if (IS_ERR(filename)) goto out;
92 error = execve1(filename, argv, env);