projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 1991, 1992 Linus Torvalds | |
| 7 | * Copyright (C) 1994 - 2000 Ralf Baechle | |
| 8 | * Copyright (C) 1999, 2000 Silicon Graphics, Inc. | |
| 9 | */ | |
| 10 | ||
| c3fc4ab3 FBH |
11 | #ifndef __SIGNAL_COMMON_H |
| 12 | #define __SIGNAL_COMMON_H | |
| e50c0a8f | 13 | |
| 722bb63d FBH |
14 | /* #define DEBUG_SIG */ |
| 15 | ||
| 16 | #ifdef DEBUG_SIG | |
| bb09a954 | 17 | # define DEBUGP(fmt, args...) printk("%s: " fmt, __func__, ##args) |
| 722bb63d FBH |
18 | #else |
| 19 | # define DEBUGP(fmt, args...) | |
| 20 | #endif | |
| 21 | ||
| 1da177e4 LT |
22 | /* |
| 23 | * Determine which stack to use.. | |
| 24 | */ | |
| c3fc4ab3 FBH |
25 | extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, |
| 26 | size_t frame_size); | |
| c6a2f467 AN |
27 | /* Check and clear pending FPU exceptions in saved CSR */ |
| 28 | extern int fpcsr_pending(unsigned int __user *fpcsr); | |
| 29 | ||
| faea6234 AN |
30 | /* Make sure we will not lose FPU ownership */ |
| 31 | #ifdef CONFIG_PREEMPT | |
| 32 | #define lock_fpu_owner() preempt_disable() | |
| 33 | #define unlock_fpu_owner() preempt_enable() | |
| 34 | #else | |
| 35 | #define lock_fpu_owner() pagefault_disable() | |
| 36 | #define unlock_fpu_owner() pagefault_enable() | |
| 37 | #endif | |
| 38 | ||
| c3fc4ab3 | 39 | #endif /* __SIGNAL_COMMON_H */ |