Linux Kernel  3.7.1
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exec.c
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1 /*
2  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3  * Licensed under the GPL
4  */
5 
6 #include <linux/stddef.h>
7 #include <linux/module.h>
8 #include <linux/fs.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>
16 #include <mem_user.h>
17 #include <skas.h>
18 #include <os.h>
19 
20 void flush_thread(void)
21 {
22  void *data = NULL;
23  int ret;
24 
25  arch_flush_thread(&current->thread.arch);
26 
27  ret = unmap(&current->mm->context.id, 0, STUB_START, 0, &data);
28  ret = ret || unmap(&current->mm->context.id, STUB_END,
29  host_task_size - STUB_END, 1, &data);
30  if (ret) {
31  printk(KERN_ERR "flush_thread - clearing address space failed, "
32  "err = %d\n", ret);
34  }
36  current_pt_regs()->regs.fp);
37 
38  __switch_mm(&current->mm->context.id);
39 }
40 
41 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
42 {
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);
48 #endif
49 }