LXR linux/arch/cris/kernel/ptrace.c

   1/*
   2 *  linux/arch/cris/kernel/ptrace.c
   3 *
   4 * Parts taken from the m68k port.
   5 *
   6 * Copyright (c) 2000, 2001, 2002 Axis Communications AB
   7 *
   8 * Authors:   Bjorn Wesen
   9 *
  10 */
  11
  12#include <linux/kernel.h>
  13#include <linux/sched.h>
  14#include <linux/mm.h>
  15#include <linux/smp.h>
  16#include <linux/errno.h>
  17#include <linux/ptrace.h>
  18#include <linux/user.h>
  19#include <linux/tracehook.h>
  20
  21#include <asm/uaccess.h>
  22#include <asm/page.h>
  23#include <asm/pgtable.h>
  24#include <asm/system.h>
  25#include <asm/processor.h>
  26
  27
  28/* notification of userspace execution resumption
  29 * - triggered by current->work.notify_resume
  30 */
  31extern int do_signal(int canrestart, struct pt_regs *regs);
  32
  33
  34void do_notify_resume(int canrestart, struct pt_regs *regs,
  35                      __u32 thread_info_flags)
  36{
  37        /* deal with pending signal delivery */
  38        if (thread_info_flags & _TIF_SIGPENDING)
  39                do_signal(canrestart,regs);
  40
  41        if (thread_info_flags & _TIF_NOTIFY_RESUME) {
  42                clear_thread_flag(TIF_NOTIFY_RESUME);
  43                tracehook_notify_resume(regs);
  44                if (current->replacement_session_keyring)
  45                        key_replace_session_keyring();
  46        }
  47}
  48