| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1991, 1992 Linus Torvalds |
| * Copyright (C) 1994 - 2000 Ralf Baechle |
| * Copyright (C) 1999, 2000 Silicon Graphics, Inc. |
| */ |
| |
| #ifndef __SIGNAL_COMMON_H |
| #define __SIGNAL_COMMON_H |
| |
| /* #define DEBUG_SIG */ |
| |
| #ifdef DEBUG_SIG |
| # define DEBUGP(fmt, args...) printk("%s: " fmt, __func__, ##args) |
| #else |
| # define DEBUGP(fmt, args...) |
| #endif |
| |
| #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) |
| |
| /* |
| * Determine which stack to use.. |
| */ |
| extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, |
| size_t frame_size); |
| /* |
| * install trampoline code to get back from the sig handler |
| */ |
| extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall); |
| |
| /* Check and clear pending FPU exceptions in saved CSR */ |
| extern int fpcsr_pending(unsigned int __user *fpcsr); |
| |
| /* Make sure we will not lose FPU ownership */ |
| #ifdef CONFIG_PREEMPT |
| #define lock_fpu_owner() preempt_disable() |
| #define unlock_fpu_owner() preempt_enable() |
| #else |
| #define lock_fpu_owner() pagefault_disable() |
| #define unlock_fpu_owner() pagefault_enable() |
| #endif |
| |
| #endif /* __SIGNAL_COMMON_H */ |