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  */
31 extern int do_signal(int canrestart, struct pt_regs *regs);
32 
33 
do_notify_resume(int canrestart,struct pt_regs * regs,__u32 thread_info_flags)34 void 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