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"
14 #include "as-layout.h"
19 void flush_thread(void)
24 arch_flush_thread(¤t->thread.arch);
26 ret = unmap(¤t->mm->context.id, 0, STUB_START, 0, &data);
27 ret = ret || unmap(¤t->mm->context.id, STUB_END,
28 TASK_SIZE - STUB_END, 1, &data);
30 printk(KERN_ERR "flush_thread - clearing address space failed, "
32 force_sig(SIGKILL, current);
35 __switch_mm(¤t->mm->context.id);
38 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
41 PT_REGS_IP(regs) = eip;
42 PT_REGS_SP(regs) = esp;
46 extern void log_exec(char **argv, void *tty);
49 static long execve1(char *file, char __user * __user *argv,
50 char __user *__user *env)
54 struct tty_struct *tty;
56 mutex_lock(&tty_mutex);
57 tty = get_current_tty();
60 mutex_unlock(&tty_mutex);
62 error = do_execve(file, argv, env, ¤t->thread.regs);
65 current->ptrace &= ~PT_DTRACE;
66 #ifdef SUBARCH_EXECVE1
67 SUBARCH_EXECVE1(¤t->thread.regs.regs);
74 long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
78 err = execve1(file, argv, env);
80 UML_LONGJMP(current->thread.exec_buf, 1);
84 long sys_execve(char __user *file, char __user *__user *argv,
85 char __user *__user *env)
91 filename = getname(file);
92 error = PTR_ERR(filename);
93 if (IS_ERR(filename)) goto out;
94 error = execve1(filename, argv, env);