Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/cris/kernel/ptrace.c |
| 3 | * |
| 4 | * Parts taken from the m68k port. |
Jesper Nilsson | 1b7e7da | 2008-01-28 16:30:35 +0100 | [diff] [blame] | 5 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * Copyright (c) 2000, 2001, 2002 Axis Communications AB |
| 7 | * |
| 8 | * Authors: Bjorn Wesen |
| 9 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | */ |
| 11 | |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/sched.h> |
| 14 | #include <linux/mm.h> |
| 15 | #include <linux/smp.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/errno.h> |
| 17 | #include <linux/ptrace.h> |
| 18 | #include <linux/user.h> |
David Howells | 733e5e4 | 2009-09-09 08:30:21 +0100 | [diff] [blame] | 19 | #include <linux/tracehook.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
| 21 | #include <asm/uaccess.h> |
| 22 | #include <asm/page.h> |
| 23 | #include <asm/pgtable.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <asm/processor.h> |
| 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
| 27 | /* notification of userspace execution resumption |
| 28 | * - triggered by current->work.notify_resume |
| 29 | */ |
Jesper Nilsson | 7b27552 | 2007-11-14 17:00:59 -0800 | [diff] [blame] | 30 | extern int do_signal(int canrestart, struct pt_regs *regs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | |
| 32 | |
Jesper Nilsson | 7b27552 | 2007-11-14 17:00:59 -0800 | [diff] [blame] | 33 | void do_notify_resume(int canrestart, struct pt_regs *regs, |
Jesper Nilsson | 1b7e7da | 2008-01-28 16:30:35 +0100 | [diff] [blame] | 34 | __u32 thread_info_flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | { |
| 36 | /* deal with pending signal delivery */ |
| 37 | if (thread_info_flags & _TIF_SIGPENDING) |
Jesper Nilsson | 7b27552 | 2007-11-14 17:00:59 -0800 | [diff] [blame] | 38 | do_signal(canrestart,regs); |
David Howells | d0420c8 | 2009-09-02 09:14:16 +0100 | [diff] [blame] | 39 | |
| 40 | if (thread_info_flags & _TIF_NOTIFY_RESUME) { |
| 41 | clear_thread_flag(TIF_NOTIFY_RESUME); |
| 42 | tracehook_notify_resume(regs); |
| 43 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | } |