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/ptrace.h"
9 #include "linux/sched.h"
10 #include "linux/slab.h"
11 #include "asm/current.h"
12 #include "asm/processor.h"
13 #include "asm/uaccess.h"
14 #include "as-layout.h"
20 void flush_thread(void)
25 arch_flush_thread(¤t->thread.arch);
27 ret = unmap(¤t->mm->context.id, 0, STUB_START, 0, &data);
28 ret = ret || unmap(¤t->mm->context.id, STUB_END,
29 host_task_size - STUB_END, 1, &data);
31 printk(KERN_ERR "flush_thread - clearing address space failed, "
33 force_sig(SIGKILL, current);
36 __switch_mm(¤t->mm->context.id);
39 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;
45 static long execve1(const char *file,
46 const char __user *const __user *argv,
47 const char __user *const __user *env)
51 error = do_execve(file, argv, env, ¤t->thread.regs);
54 current->ptrace &= ~PT_DTRACE;
55 #ifdef SUBARCH_EXECVE1
56 SUBARCH_EXECVE1(¤t->thread.regs.regs);
63 long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
67 err = execve1(file, argv, env);
69 UML_LONGJMP(current->thread.exec_buf, 1);
73 long sys_execve(const char __user *file, const char __user *const __user *argv,
74 const char __user *const __user *env)
79 filename = getname(file);
80 error = PTR_ERR(filename);
81 if (IS_ERR(filename)) goto out;
82 error = execve1(filename, argv, env);