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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - arch/cris/kernel/ptrace.c
2 * linux/arch/cris/kernel/ptrace.c
4 * Parts taken from the m68k port.
6 * Copyright (c) 2000, 2001, 2002 Axis Communications AB
12 #include <linux/kernel.h>
13 #include <linux/sched.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>
21 #include <asm/uaccess.h>
23 #include <asm/pgtable.h>
24 #include <asm/processor.h>
27 /* notification of userspace execution resumption
28 * - triggered by current->work.notify_resume
30 extern int do_signal(int canrestart
, struct pt_regs
*regs
);
33 void do_notify_resume(int canrestart
, struct pt_regs
*regs
,
34 __u32 thread_info_flags
)
36 /* deal with pending signal delivery */
37 if (thread_info_flags
& _TIF_SIGPENDING
)
38 do_signal(canrestart
,regs
);
40 if (thread_info_flags
& _TIF_NOTIFY_RESUME
) {
41 clear_thread_flag(TIF_NOTIFY_RESUME
);
42 tracehook_notify_resume(regs
);
46 void do_work_pending(int syscall
, struct pt_regs
*regs
,
47 unsigned int thread_flags
)
50 if (likely(thread_flags
& _TIF_NEED_RESCHED
)) {
53 if (unlikely(!user_mode(regs
)))
56 if (thread_flags
& _TIF_SIGPENDING
) {
57 do_signal(syscall
, regs
);
60 clear_thread_flag(TIF_NOTIFY_RESUME
);
61 tracehook_notify_resume(regs
);
65 thread_flags
= current_thread_info()->flags
;
66 } while (thread_flags
& _TIF_WORK_MASK
);